12,497 results on '"3d modeling"'
Search Results
2. A Study of Denoising Algorithm on Point Clouds: Geometrical Effectiveness in Cultural Heritage Analysis
- Author
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Gonizzi Barsanti, Sara, Marini, Marco Raoul, Malatesta, Saverio Giulio, Rossi, Adriana, Xhafa, Fatos, Series Editor, and Takenouchi, Kazuki, editor
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- 2025
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3. Application of intraoperative structured light scanning to enable post-operative evaluation of digital and 3D-printed penile models.
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Huang, Alen, Lee, Victoria, Chauhan, Akash E., Sahoo, Astha, Li, Joshua, Pham, Derek, Aninwene II, George E., Yiu, Felix, Lerman, Steven, Iyer, Neha, Moman, Precious, Jackson, Nicholas, and Sturm, Renea M.
- Abstract
Penile phenotype in hypospadias is currently assessed visually or manually (e.g., ruler, goniometer) for clinical, education, and research applications. However, these methods lack precision and accuracy across raters and cannot be reevaluated retrospectively following a surgical repair. The project aim was to evaluate the precision and reliability of penile dimensions obtained from digital and three dimensional (3D) printed models created from intraoperative (OR) structured light scans (SLS) during primary pediatric penile procedures. Boys ages 1 month to 6 years underwent first- or single-stage penile surgery at a single institution were enrolled in this prospective study (IRB #20–000143). For each patient, immediately following placement of a stay suture under consistent manual tension, intra-operative dimension measurements with a ruler were obtained. A digital 3D model was created prior to penile repositioning using an Artec Space Spider scanner and Artec Studio 13 software. Following the case, two different raters completed 10 digital measurements of each generated model in Autodesk Fusion 360. These digital models were subsequently 3D printed and two different raters completed 10 manual dimension measurements of each 3D printed model using a ruler. A one-way random effects intraclass correlation coefficient (ICC) evaluated measures of agreement between and within raters, respectively. Analyses were conducted in R version 4.2. Six scans were obtained (hypospadias: 4, circumcision: 2). Intra-rater assessments showed excellent precision across repeated digital measurements; manual measurements of 3D printed models had excellent reliability for glans width and penile length but poor to good reliability for glans height. Inter-rater reliability was good to excellent for glans width (0.77–0.95) and good for penile length (0.71–0.88). However, there was poor inter-rater reliability for glans height (0–0.14). Following training regarding glans height location, there was an improvement in precision and repeatability of manual and digital measurements. Digital measurement of OR-derived 3D models resulted in excellent repeatability for each rater and improved between-rater reliability over manual measurement of 3D printed models alone, ensuring that images can be compared by various surgeons both now and in the future. SLS is promising as a novel modality to digitally generate 3D models, thereby informing phenotypic analysis for research and education. Further development of digital measurement methods to ensure consistency between raters for quantitative assessment of additional parameters and assessment of the technology within the pre-operative environment for surgical planning is planned. [Display omitted] [ABSTRACT FROM AUTHOR]
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- 2024
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4. Application of unmanned aerial vehicle tilt photography technology in geological hazard investigation in China.
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Zhao, Zhi-Hong, Sun, Hao, Zhang, Nian-Xiao, Xing, Tian-Hui, Cui, Guan-Hua, Lai, Jin-Xing, Liu, Tong, Bai, Yi-Bin, and He, Hai-Jun
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EMERGENCY management ,DRONE photography ,GEOLOGICAL modeling ,DEBRIS avalanches ,RELIEF models ,LANDSLIDES - Abstract
A major threat is posed to both human society and the environment by geological hazards, necessitating the need for accurate and comprehensive investigation and application in this field. Traditional geological hazard monitoring technologies are not only inefficient, but also fail to accurately delineate affected areas and provide comprehensive disaster data sets, preventing researchers from conducting precise investigations, detection and prevention. Therefore, this article summarizes the application of oblique photography technology through examples, especially its application in the investigation of local geological disasters such as debris flows and landslides, and the use of orthogonal-based corrected single-view oblique photography technology in the investigation of regional geological disasters such as earthquakes. Through summary, it is found that compared with traditional methods, UAV oblique photography technology is more excellent in the accuracy of investigation, detection, prevention, terrain information identification and geological disaster risk factor analysis in geological disasters. UAV oblique photography technology plays a vital role in the investigation, detection and prevention of geological disasters due to its versatility, efficiency and accuracy. It can help create detailed maps and 3D models of terrain by capturing high-resolution images from multiple angles to help identify potential geohazards. It can also detect changes in landforms, vegetation or waterways to provide warning signs for landslides, sinkholes or provide early warning signals for potential geological hazards such as erosion. High-resolution imagery captured by drones allows rescuers to quickly assess impacts on infrastructure, settlements and natural resources, thereby facilitating the efficient allocation of resources for rescue and recovery efforts. Drone oblique photography technology significantly enhances the ability to investigate, detect and prevent geohazards by providing timely, detailed spatial information critical for informed decision-making and proactive disaster management. Additionally considering that drone oblique photography technology may be combined with artificial intelligence algorithms and virtual reality (VR) imaging technology in the future, this integration is expected to improve the efficiency and accuracy of geological disaster management, thus ensuring the safety of human life and property. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Modeling orientational features via geometric algebra for 3D protein coordinates prediction.
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Pepe, Alberto and Lasenby, Joan
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PROTEIN structure prediction , *AMINO acid sequence , *PROTEIN structure , *TRANSFORMER models , *AMINO acid residues - Abstract
Protein structure prediction (PSP) is the prediction of the three‐dimensional (3D) folding of a protein (its tertiary structure) starting from its amino acid sequence (its primary structure). The state of the art in PSP is achieved by deep learning pipelines that require several input features extracted from amino acid sequences. It has been demonstrated that features that grasp the relative orientation of amino acids positively impact the prediction accuracy of the 3D coordinates of atoms in the protein backbone. In this paper, we demonstrate the relevance of geometric algebra (GA) in instantiating orientational features for PSP problems. We do so by proposing two novel GA‐based metrics which contain information on relative orientations of amino acid residues. We then employ these metrics as additional input features to a graph transformer (GT) architecture to aid the prediction of the 3D coordinates of a protein, and compare them to classical angle‐based metrics. We show how our GA features yield comparable results to angle maps in terms of accuracy of the predicted coordinates. This is despite being constructed from less initial information about the protein backbone. The features are also fewer and more informative and can be (i) closely associated to protein secondary structures and (ii) more easily predicted compared to angle maps. We hence deduce that GA can be employed as a tool to simplify the modeling of protein structures and pack orientational information in a more natural and meaningful way. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Comparative Analysis of Korean Nasal Morphology Using Cone-Beam Computed Tomography.
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Lee, Jeong-Hyun and Park, Jong-Tae
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NASAL anatomy ,FACIAL anatomy ,NASAL radiography ,FACE ,THREE-dimensional imaging ,STRUCTURAL models ,T-test (Statistics) ,DATA analysis ,RESEARCH funding ,COMPUTED tomography ,SEX distribution ,RHINOPLASTY ,ONE-way analysis of variance ,STATISTICS ,COMPARATIVE studies ,DATA analysis software ,ANTHROPOMETRY ,CONFIDENCE intervals - Abstract
Background/Objectives: Nasal morphology is a significant aspect of facial anatomy and is often used for forensic identification and aesthetic surgery. This study aims to compare nasal dimensions based on sex, facial index (FI), and nasal index (NI) using cone-beam computed tomography (CBCT) and 3D modeling. Methods: To observe differences in nasal dimensions by sex and analyze the relationships between facial shapes (FI) and nasal forms (NI), a total of 100 participants (50 males, 50 females) in their 20s were selected from Dankook University Dental Hospital. CBCT scans were performed, and 3D models were created using Mimics software (version 22.0). The measurement items included the alaria distance between (AL), the distance between N (nasion) and SN (subnasale), the distance between N (nasion) and PRN (pronasale), and the distance between SN (subnasale) and PRN (pronasale). A T-test was used for the sex-based analysis of the nasal dimensions, and the facial index- and nasal index-based nasal dimensions were analyzed using a one-way ANOVA with Scherffe's post hoc test. Additionally, all the statistical analyses were performed using SPSS software (version 23.0). Results: The results indicated that males generally have larger nasal dimensions than females. Additionally, the mesoprosopic facial type (round face) showed the largest nasal dimensions in the FI classification, while the platyrrhine nasal type (broad and short nose) exhibited the largest dimensions in the NI classification. Conclusions: This study demonstrates that the nasal size varies significantly with sex, facial shape, and nasal form. The findings can contribute to forensic identification and provide valuable data for clinical practices in facial reconstruction and nasal surgery. [ABSTRACT FROM AUTHOR]
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- 2024
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7. 基于数字孪生的 LNG 港池平面优化 设计方法及应用研究.
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连石水, 关宏旭, 陈海锋, and 杜安民
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DIGITAL twins , *VIRTUAL reality , *DIGITAL technology , *SHIPS , *DESIGN - Abstract
In order to integrate the design of harbor basin water area with digitalization, optimize the habor basin water areaplane design scheme, and improve the safety of LNG ships entering and exiting the port, a design optimization scheme based ondigital twin technology for LNG terminals was studied. Based on the physical characteristics of LNG ships and harbor tugs,geometric features and hydrodynamic parameters were extracted to construct a digital twin model. By applying perception datatechnology, a virtual-real mapping correlation model was established, accurately integrating the actual movement status of LNGships and harbor tugs with intelligent digital technology. The virtual environment was used to conduct docking and departuretests, and based on the test results, a design scheme for the optimization of the layout of the terminal and the docking channelwas developed. The application of digital twin technology in the design process of LNG terminals was thus realized. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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8. Using preoperative planning software to assess the effect of head length on prosthetic range of motion in a high-risk population: a three-dimensional modeling study.
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Eslam Pour, Aidin, Tung, Wei Shao, Donnelley, Claire A., Tommasini, Steven M., and Wiznia, Daniel
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TOTAL hip replacement , *FEMUR head , *RANGE of motion of joints , *FEMORACETABULAR impingement , *THREE-dimensional modeling - Abstract
Purpose: Concurrent use of minus heads with tapered stems in total hip arthroplasty (THA) decreases the prosthetic range of motion (pROM). Three-dimensional preoperative templating can simulate the location of the impingement by taking the hip through a virtual pROM. This enables surgeons to simulate how modifying the type of implant, orientation, and position influences impingement. We hypothesized that CT-based modeling would result in a decrease in the pROM, thereby increasing the risk of impingement when minus heads are used. Methods: Forty-three patients who underwent robotic-assisted primary THAs were included. Prosthetic head diameter (32/36-mm) and head length (minus/zero/plus) were the predictors. Maximum external rotation at full hip extension and internal rotation at 90° and 100° of flexion prior to prosthetic impingement were the outcome variables. A CT-based preoperative planning software was used for pROM estimation and impingement detection. Results: Significant decreases in pROM were found for both head diameters as the head length decreased and was more pronounced in external rotation during full hip extension (changes of 2.8–3.4° for the 32-mm head and 1.6–2.8° for the 36-mm head (p = 0.00011)). The magnitude of loss in pROM when using a minus head was larger than the gain provided by a plus head in tapered stems (p < 0.0001). Conclusion: Head length affects the offset and pROM. When the use of minus heads or smaller heads is indicated, 3D preoperative templating for assessing postoperative pROM and impingement provides surgeons with options to consider alternate surgical plans offering additional assurance and protection from dislocation. [ABSTRACT FROM AUTHOR]
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- 2024
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9. Effect of Infrared Treatment on Chemical and Structural Quality of Soybean: Quantitative Three-Dimensional Characterization Using X-Ray Microtomography.
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Jayasinghe, Maheshika, Jeddi, Dorsa, Paziuk, Bailey, and Erkinbaev, Chyngyz
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X-ray computed microtomography , *INFRARED heating , *INFRARED radiation , *WATER hardness , *MEAT alternatives - Abstract
Soybean is a source of high-quality vegetable protein and a suitable substitute for meat protein. However, several factors, including a lengthy cooking process, palatability issues, and digestion concerns, have limited their consumption. Several treatments have been suggested to overcome such issues, including infrared heating, which has many advantages over traditional roasting methods. In this study, the three-dimensional microstructure of soybeans with initial moisture contents (12, 16, 20, and 24% w.b.) and treated at different micronization durations (60, 90, and 120 s) at 180 °C were studied and related to quality parameters including water absorption and hardness of both non-cooked and cooked samples. The water absorption tests demonstrated no significant difference (p > 0.05) between the moisture absorbed for 60, 90, and 120 s micronization with initial moisture levels of 12, 16, and 24%. Yet all soybeans treated for 60 s exhibited significantly different results (p < 0.05) compared to raw counterparts. The highest hardness values were achieved after 60 s treatments on 24% moisturized seeds. As expected, the 20 min cooking time resulted in a considerable reduction in soybean hardness. The X-ray micro-computed tomography (micro-CT) was a powerful non-destructive tool to explore the microstructure of individual soybean seeds. Results of X-ray micro-CT have shown an increase in open porosity with increasing infrared treatment time. Overall, the qualitative and quantitative analysis provided in this study may serve as a basis for developing improved food processing techniques. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Testing the Level of Creativity and Spatial Imagination in the SketchUp Program Using a Modified Urban Test of Creative Thinking.
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Honzíková, Jarmila, Fadrhonc, Jan, and Krotký, Jan
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CREATIVE thinking ,VIRTUAL reality ,TEACHER attitudes ,IMAGINATION ,VISUALIZATION - Abstract
The authors focus on innovating the research tool Urban's Test of Creativity to enhance the evaluation and efficiency of the educational process. This paper presents the possibility of measuring creativity and spatial imagination in the SketchUp virtual environment. Teachers and HR professionals in modern companies require an overview of the key competencies of students and graduates, essential for the transformation towards Industry 5.0. The authors utilize the proven concept of Urban's Test, modify it into a digital format, and integrate new elements that assess spatial visualization and functional creativity. Teachers and HR professionals gain an efficient tool that is easy to evaluate, time-efficient, and requires minimal infrastructure. The modified research tool is suitable for conducting action research and allows for comparing respondents' results using quantitative methods. This pilot study aimed to validate the modified test and its properties. A total of one hundred respondents, divided into five groups based on age and education (approximately 10 to 25 years old), were tested. The results confirmed that the concept of Urban's Test of Creativity can be successfully adapted for commonly available 3D modeling environments. Moreover, it was confirmed that within the target group, the level of spatial visualization improves gradually with age. [ABSTRACT FROM AUTHOR]
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- 2024
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11. 3D Modeling Simulation and Innovative Design of a Saw Cutting Mechanism for a Movable Buckling Machine.
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Yang, Xuechun, Wu, Xiangjie, and Xu, Huadong
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TECHNOLOGICAL innovations ,COLD regions ,SIMULATION software ,ENGINEERING models ,THREE-dimensional modeling - Abstract
In this research, a sawing mechanism of a mobile buckling machine was innovatively designed for the forest resources and environmental characteristics of the northeast region of China. The northeast region of China is rich in forest resources, but the climate is cold, which puts high demands on the performance and adaptability of mechanical equipment. In this study, the three-dimensional modeling of the saw-cutting mechanism was completed by Pro/Engineer 5.0 modeling software, and an in-depth dynamics simulation analysis was carried out using dynamics simulation software. The study aims to assess the applicability of this saw-cutting mechanism in the northeast region of China, analyze its design characteristics, and explore possible directions for performance optimization. Through this study, we expect to provide valuable references for future technological innovations, as well as to promote the practical application and development of mobile buckling machines in cold regions. This research not only has regional characteristics, but also reflects the innovative idea of combining mechanical equipment design with environmental adaptability. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Numerical Fire Simulation: Key Tools in Fire Safety for Modern Engineering.
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Ovadiuc, Emanuil-Petru, Năstase, Ilinca, and Calotă, Răzvan
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FIRE prevention ,INDUSTRIAL safety ,FIRE management ,FLAMMABLE materials ,FIRE protection engineering - Abstract
Fire simulation is a crucial tool in modern engineering for improving fire safety in constructions, especially in complex compartmental designs. It provides practical insights into structural fire behavior, the impact of combustible materials, and fire development, aiding in the formulation of effective fire safety measures. PyroSim, a graphical interface based on the Fire Dynamics Simulator (FDS), simplifies the creation and management of complex fire models. It supports file imports from AutoCAD DXF and DWG formats, offers background options from GIF, JPG, or PNG drawings, and includes tools for creating and validating multiple meshes. These simulations are essential for obtaining comprehensive data on various fire-related properties, such as temperatures, gas concentrations, smoke volume, pressures, and more, to ensure alignment with real-world conditions. [ABSTRACT FROM AUTHOR]
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- 2024
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13. A multi-view ensemble machine learning approach for 3D modeling using geological and geophysical data.
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Chu, Deping, Fu, Jinming, Wan, Bo, Li, Hong, Li, Lulan, Fang, Fang, Li, Shengwen, Pan, Shengyong, and Zhou, Shunping
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MACHINE learning , *MULTISENSOR data fusion , *UNDERGROUND areas , *PETROLOGY , *DATA modeling , *GEOLOGICAL modeling - Abstract
AbstractGeophysical data are often integrated into geological data for 3D modeling of underground spaces. However, the existing single-view approach means it is difficult to adequately fuse the valid information between the two types of data, and the complexity of lithological decoding and classification is high. To address this issue, a multi-view ensemble machine learning (ML) framework is proposed. Initially, the original dataset of lithology prediction is constructed by aligning geological and geophysical data with different spatial scales. Next, the dataset is divided into three datasets of structural strength, density, and moisture content according to the lithology properties of the geophysical data. The proposed framework is then used to capture the lithologic characteristics under different views to achieve the prediction of lithologic labels. In this process, a self-attentive mechanism is used to adaptively fuse the valid information under each view. To validate the proposed framework, it is applied to a project in Jiaxing, Zhejiang Province, China. Compared with existing ML methods, the proposed multi-view ensemble ML framework improves modeling accuracy and constructs models with low uncertainty. The framework can be extended to other multi-source data fusion tasks across geoscience domains. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Modeling APOE ε4 familial Alzheimer's disease in directly converted 3D brain organoids.
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Yunkyung Kim, Hongwon Kim, Byounggook Cho, Saemin An, Soi Kang, Sumin Kim, and Jongpil Kim
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BRAIN physiology ,GENETICS of Alzheimer's disease ,ALZHEIMER'S disease ,RESEARCH funding ,DATA analysis ,DESCRIPTIVE statistics ,REVERSE transcriptase polymerase chain reaction ,NEURODEGENERATION ,FIBROBLASTS ,GENE expression ,APOLIPOPROTEINS ,ANALYSIS of variance ,STATISTICS ,WESTERN immunoblotting ,DATA analysis software - Abstract
Brain organoids have become a valuable tool for studying human brain development, disease modeling, and drug testing. However, generating brain organoids with mature neurons is time-intensive and often incomplete, limiting their utility in studying age-related neurodegenerative diseases such as Alzheimer's disease (AD). Here, we report the generation of 3D brain organoids from human fibroblasts through direct reprogramming, with simplicity, efficiency, and reduced variability. We also demonstrate that induced brain organoids from APOE ε4 AD patient fibroblasts capture some disease-specific features and pathologies associated with APOE ε4 AD. Moreover, APOE ε4-induced brain organoids with mutant APP overexpression faithfully recapitulate the acceleration of AD-related pathologies, providing a more physiologically relevant and patient-specific model of familial AD. Importantly, transcriptome analysis reveals that gene sets specific to APOE ε4 patient-induced brain organoids are highly similar to those of APOE ε4 post-mortem AD brains. Overall, induced brain organoids from direct reprogramming offer a promising approach for more efficient and controlled studies of neurodegenerative disease modeling. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Digitalizing cultural heritage through metaverse applications: challenges, opportunities, and strategies.
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Buragohain, Dipima, Meng, Yahui, Deng, Chaoqun, Li, Qirui, and Chaudhary, Sushank
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COMMUNITY-school relationships , *SHARED virtual environments , *CULTURAL property , *DIGITAL technology , *DIGITAL preservation - Abstract
Preservation and accessibility of cultural heritage have become essential with the rapid advancements of globalization and modernization endeavors constantly threatening historical artifacts and sites across the world. The advent of the metaverse, with its immersive and interactive capabilities, presents a novel approach to safeguarding and promoting cultural heritage. The current study aims to explore the potential of metaverse applications in digitalizing cultural heritage, encompassing virtual reconstructions, educational outreach, global accessibility, and sustainability. It conducts a systematic literature review using PRISMA guidelines to collect, screen, and evaluate existing research enquiries into investigating current practices and technologies in the digitalization of heritage preservation. The study also conducts case study research to investigate the challenges and opportunities associated with the virtual preservation of tangible and intangible cultural assets, including issues of authenticity, representation, and sustainability. Furthermore, it evaluates the impact of metaverse applications on public engagement and cultural education. The findings provide valuable insights into developing innovative strategies for preserving cultural heritage in the digital age while highlighting best practices and guidelines for optimizing metaverse applications in cultural heritage preservation. [ABSTRACT FROM AUTHOR]
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- 2024
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16. 3D Modeling and the Age of the Collision Metamorphism of the Khan-Khukhei Block, Northern Mongolia.
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Semenov, A. N., Polyansky, O. P., and Reverdatto, V. V.
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AGE , *MAGMAS , *PALEOZOIC Era , *ISOTOPES , *GRANITE , *SCHISTS , *METAMORPHISM (Geology) , *CONCEPTION - Abstract
The reconstruction of the Early Paleozoic collision metamorphism of the Khan-Khukhei Block (Northern Mongolia) based on 3D modeling of thermal state of the crust and isotope dating is presented. The age of garnet–biotite schist from a metamorphic complex of the Khan-Khukhei Block of 517.4 ± 7.4 Ma is determined for the first time. 3D modeling was conducted to compare this age of metamorphism with the available age determinations of (post-) collision granite formation in the range of 513‒505 Ma. The model considers radiogenic heating at an elevated heat production of rocks of the thickened crust of the Khan-Khukhei block as the cause of the migmatization and granitoid melts formation. 3D modeling was conducted for the first time for thermal-dome type of metamorphism. The results provide a realistic conception of magma generation in typical collision settings in the absence of mantle magmatic heat sources. The time interval between metamorphism and the stage of anatectic magma formation is 5–12 Ma. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Dynamically documenting archaeological excavations based on 3D modeling: a case study of the excavation of the #3 fossil of hominin cranium from Yunxian, Hubei, China.
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Niu, Wenyuan, Lu, Chengqiu, Zou, Qiushi, Luo, Yunbing, Wang, Xuan, Xiang, Hanyu, Zhang, Fan, Gao, Xing, Xing, Song, Wei, Xuan, Lou, Wentai, Huang, Dailong, Wang, Cheng, Jiang, Dongqing, Wan, Xiaofeng, Zhang, Zhongyun, Yin, Huanghao, Lu, Jiayang, Wang, Feng, and Huang, Xianfeng
- Abstract
Documenting tangible cultural heritage using 3D modeling techniques is gradually becoming an indispensable component of archaeological practice. The 3D modeling techniques based on photogrammetry and LiDAR scanning enable high-accuracy and high-realistic reconstruction of archaeological sites, and have been proven a powerful tool for documenting archaeological excavations. However, dynamically documenting an ongoing excavation using these techniques is still considered tedious, time-consuming, expensive, and dependent on expertise. Moreover, the application of 3D modeling techniques in archaeological excavations still faces some technical challenges, such as modeling with multi-source and multi-scale data, fusing local models at different times into a whole, achieving fast modeling while GPU workstations are not available in the field, and evaluating the quality of 3D models. As a result, there are still very few archaeological teams deeply engaged in dynamic documentation with 3D modeling techniques, and traditional drawing sketches and taking photographs still dominate. In these senses, documenting the archaeological excavation at the Yunxian Man site (located in Hubei, China) is an invaluable opportunity for exploration and practice. Archaeologists determined to conduct dynamically documenting at the beginning of the 6th excavation project for the site, and established a rotation system to reconcile physical excavation with digital preservation. Through repeated practice and communication, we proposed a workflow and pursued several new methods to enhance the feasibility of dynamically documenting, and obtained 4D models of the ongoing archaeological excavations. In 2022, the Yunxian Man site unearthed the most intact fossil of hominin cranium from about one million years ago in the Eurasian continent, preserving important and scarce anatomical features of early humans in Asia. As the original taphonomic context of the fossil corroded away during physical excavations, the digital documentation consisting of 4D models serves as permanent original data source in subsequent archaeological research. Moreover, we obtained cross-scale 3D models from geographical environment to archaeological site, excavation area, and cultural remains, and all of these 3D models are in an actual, unified coordinate framework. Thus, we can contribute to multidisciplinary cross-collaborative research through data sharing. Considering that digital documentations serve a great value in archaeological research, this paper focuses on sharing the workflow and methods to facilitate digital preservation for more archaeological projects. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Design and evaluation of an anthropomorphic neck phantom for improved ultrasound diagnostics of thyroid gland tumors.
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Leonov, Denis, Nasibullina, Anastasia, Grebennikova, Veronika, Vlasova, Olga, Bulgakova, Yulia, Belyakova, Ekaterina, Shestakova, Darya, Costa-Júnior, José Francisco Silva, Omelianskaya, Olga, and Vasilev, Yuriy
- Abstract
Purpose: Thyroid cancer is one of the most common cancers worldwide, with ultrasound-guided biopsy being the method of choice for its early detection. The accuracy of diagnostics directly depends on the qualifications of the ultrasonographers, whose performance can be enhanced through training with phantoms. The aim of this study is to propose a reproducible methodology for designing a neck phantom for ultrasound training and research from widely available materials and to validate its applicability. Methods: The phantom was made using polyvinyl chloride mixed with additives to reproduce different levels of brightness on ultrasound screens. 3D printing and casting were used to create the neck model and various structures of the neck, including bones, cartilage, arteries, veins, lymph nodes, thyroid gland, and soft tissues. The small objects, such as tumor and lymph node models, were shaped manually. All the phantom's materials were carefully selected to match the ultrasonic speed and attenuation values of real soft tissues and bones. Results: The thyroid gland contains models of a cancerous and cystic nodule. In the neck, there are models of carotid arteries and jugular veins filled with ultrasound-transparent gel. Additionally, there are replicas of lymph nodes and bone structures such as hyoid bone, thyroid cartilage, trachea, and vertebrae. The resulting phantom covers the entire neck area and has been positively received by practicing ultrasound specialists. Conclusions: The proposed manufacturing technology offers a reliable and cost-effective approach to produce an anthropomorphic neck phantom for ultrasound diagnosis of the thyroid gland. The realistic simulation provided by the phantom enhances the quality and accuracy of ultrasound examinations, contributing to better training for medical professionals and improved patient care. Subsequent research efforts can concentrate on refining the fabrication process and exploring additional features to enhance the phantom's capabilities. [ABSTRACT FROM AUTHOR]
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- 2024
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19. 基于多维关联规则的建筑工程地质勘察数据整合研究.
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赵君鹏
- Abstract
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- 2024
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20. Integrated Modeling of Multi-Stage Hydraulic Fracturing of Low-Permeable Reservoirs
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V. N. Astafyev and G. M. Mitrofanov
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multi-stage hydraulic fracturing ,optimization ,3d modeling ,hard-to-recover reserves ,low-permeability formations ,Geology ,QE1-996.5 - Abstract
The most effective method for developing lowpermeability reservoirs is multi-stage hydraulic fracturing (MSHF), which is confirmed by its intensive development in Russia. A feature of modeling hydraulic fracturing of low-permeability reservoirs is not only the need to calculate the optimal parameters of multi-stage hydraulic fractures and their relative positions, but also taking into account the influence of hydraulic fracturing on changes in the filtration properties of the formation. To create an optimal multi-stage hydraulic fracturing model, it is necessary to improve existing techniques and optimize them using 3D modeling, which in turn requires the use of extended well and laboratory research methods. As a result of the research performed, a new method for optimizing multi-stage hydraulic fracturing was created using input data from constructed petrophysical, lithologicalgeochemical, geomechanical, geological and hydrodynamic models. Direct interconnection of the input models and their inverse relationship with the results of calibration of the hydraulic fracturing model based on the analysis of hydraulic fracturing parameters and well operation reduce the influence of the subjective factor on the modeling and build more correct models of multi-stage hydraulic fracturing. It is shown that the integrated modeling allows to create optimal multi-stage hydraulic fracturing models, and also to determine a set of additional studies necessary to clarify the data for correct design of the models. The proposed approach was tested in several fields with completely different geological and geophysical characteristics of the formations. For the first time in Russia MZHF technology for low-temperature gas formations using hydrocarbon-based fluid and high-speed hybrid MSHF of high-temperature oil formations were developed and performed. This became the basis for the development of low-permeability Turonian, Jurassic, Achimov reservoirs and unconventional deposits of the Bazhenov formation.
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- 2024
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21. Testing the Level of Creativity and Spatial Imagination in the SketchUp Program Using a Modified Urban Test of Creative Thinking
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Jarmila Honzíková, Jan Fadrhonc, and Jan Krotký
- Subjects
3D modeling ,SketchUp ,creativity testing ,spatial visualization testing ,modification of Urban Creative Thinking Test ,experiment ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
The authors focus on innovating the research tool Urban’s Test of Creativity to enhance the evaluation and efficiency of the educational process. This paper presents the possibility of measuring creativity and spatial imagination in the SketchUp virtual environment. Teachers and HR professionals in modern companies require an overview of the key competencies of students and graduates, essential for the transformation towards Industry 5.0. The authors utilize the proven concept of Urban’s Test, modify it into a digital format, and integrate new elements that assess spatial visualization and functional creativity. Teachers and HR professionals gain an efficient tool that is easy to evaluate, time-efficient, and requires minimal infrastructure. The modified research tool is suitable for conducting action research and allows for comparing respondents’ results using quantitative methods. This pilot study aimed to validate the modified test and its properties. A total of one hundred respondents, divided into five groups based on age and education (approximately 10 to 25 years old), were tested. The results confirmed that the concept of Urban’s Test of Creativity can be successfully adapted for commonly available 3D modeling environments. Moreover, it was confirmed that within the target group, the level of spatial visualization improves gradually with age.
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- 2024
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22. 3D modeling of the urinary bladder using electrical impedance tomography: advanced reconstruction algorithms and medical applications
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Daria Stefańczak, Marcin Dziadosz, Katarzyna Iskra, and Piotr Bednarczuk
- Subjects
urinary bladder ,3d modeling ,reconstruction ,electrical impedance tomography ,tomographic measurements ,algorithms ,Social Sciences - Abstract
Purpose: The research presented in this paper was conducted to obtain a detailed 3D model of the urinary bladder using electrical impedance tomography, a noninvasive tomographic technique. Methods: Electrical impedance tomography (EIT) is an imaging technique that measures electrical impedance inside the human body. Many methods, including those based on physical models and machine learning, are used to reconstruct the considered 3D object using EIT. The work focuses on the Gauss-Newton algorithm in its generalized form. Results: Three-dimensional reconstructions of the urinary bladder were obtained. The models are built with high accuracy and can be processed by subsequent algorithms. Discussion: The constructed models can serve as the basis for correct diagnosis in medicine and as research material for subsequent work, for example, on the possibilities of 3D printing. Possible methods of obtaining even higher-quality reconstruction also remain to be considered.
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- 2024
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23. Digitalizing cultural heritage through metaverse applications: challenges, opportunities, and strategies
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Dipima Buragohain, Yahui Meng, Chaoqun Deng, Qirui Li, and Sushank Chaudhary
- Subjects
Cultural heritage ,Metaverse ,Digital heritage preservation ,Virtual reconstruction ,3D modeling ,Fine Arts ,Analytical chemistry ,QD71-142 - Abstract
Abstract Preservation and accessibility of cultural heritage have become essential with the rapid advancements of globalization and modernization endeavors constantly threatening historical artifacts and sites across the world. The advent of the metaverse, with its immersive and interactive capabilities, presents a novel approach to safeguarding and promoting cultural heritage. The current study aims to explore the potential of metaverse applications in digitalizing cultural heritage, encompassing virtual reconstructions, educational outreach, global accessibility, and sustainability. It conducts a systematic literature review using PRISMA guidelines to collect, screen, and evaluate existing research enquiries into investigating current practices and technologies in the digitalization of heritage preservation. The study also conducts case study research to investigate the challenges and opportunities associated with the virtual preservation of tangible and intangible cultural assets, including issues of authenticity, representation, and sustainability. Furthermore, it evaluates the impact of metaverse applications on public engagement and cultural education. The findings provide valuable insights into developing innovative strategies for preserving cultural heritage in the digital age while highlighting best practices and guidelines for optimizing metaverse applications in cultural heritage preservation.
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- 2024
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24. Dynamically documenting archaeological excavations based on 3D modeling: a case study of the excavation of the #3 fossil of hominin cranium from Yunxian, Hubei, China
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Wenyuan Niu, Chengqiu Lu, Qiushi Zou, Yunbing Luo, Xuan Wang, Hanyu Xiang, Fan Zhang, Xing Gao, Song Xing, Xuan Wei, Wentai Lou, Dailong Huang, Cheng Wang, Dongqing Jiang, Xiaofeng Wan, Zhongyun Zhang, Huanghao Yin, Jiayang Lu, Feng Wang, Xianfeng Huang, and Yinghua Li
- Subjects
Dynamically documenting ,3D modeling ,Multi-source data fusion ,The Yunxian Man site ,Cloud-based modeling ,Mesh update ,Fine Arts ,Analytical chemistry ,QD71-142 - Abstract
Abstract Documenting tangible cultural heritage using 3D modeling techniques is gradually becoming an indispensable component of archaeological practice. The 3D modeling techniques based on photogrammetry and LiDAR scanning enable high-accuracy and high-realistic reconstruction of archaeological sites, and have been proven a powerful tool for documenting archaeological excavations. However, dynamically documenting an ongoing excavation using these techniques is still considered tedious, time-consuming, expensive, and dependent on expertise. Moreover, the application of 3D modeling techniques in archaeological excavations still faces some technical challenges, such as modeling with multi-source and multi-scale data, fusing local models at different times into a whole, achieving fast modeling while GPU workstations are not available in the field, and evaluating the quality of 3D models. As a result, there are still very few archaeological teams deeply engaged in dynamic documentation with 3D modeling techniques, and traditional drawing sketches and taking photographs still dominate. In these senses, documenting the archaeological excavation at the Yunxian Man site (located in Hubei, China) is an invaluable opportunity for exploration and practice. Archaeologists determined to conduct dynamically documenting at the beginning of the 6th excavation project for the site, and established a rotation system to reconcile physical excavation with digital preservation. Through repeated practice and communication, we proposed a workflow and pursued several new methods to enhance the feasibility of dynamically documenting, and obtained 4D models of the ongoing archaeological excavations. In 2022, the Yunxian Man site unearthed the most intact fossil of hominin cranium from about one million years ago in the Eurasian continent, preserving important and scarce anatomical features of early humans in Asia. As the original taphonomic context of the fossil corroded away during physical excavations, the digital documentation consisting of 4D models serves as permanent original data source in subsequent archaeological research. Moreover, we obtained cross-scale 3D models from geographical environment to archaeological site, excavation area, and cultural remains, and all of these 3D models are in an actual, unified coordinate framework. Thus, we can contribute to multidisciplinary cross-collaborative research through data sharing. Considering that digital documentations serve a great value in archaeological research, this paper focuses on sharing the workflow and methods to facilitate digital preservation for more archaeological projects.
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- 2024
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25. Utilizing Surface Area to Volume ratios and Thermal Tolerance of Various Bee Species to Predict their Performance under Rising Global Temperatures
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Sanchez, Evelyn, Ostwald, Madeleine M, Smith, Colleen, and Seltmann, Katja C
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climate change ,thermal tolerance ,bee ,3D modeling ,photogrammetry - Abstract
The purpose of this research project is to investigate how rising temperatures, for instance climate change, can affect bees of various body sizes given their essential role in the global food supply through pollination of agricultural crops. To achieve this I utilized 3D imaging and 3D modeling techniques to calculate surface area-to-volume (SA/V) ratios of the bees that otherwise cannot be obtained using conventional methods. SA/V ratios were calculated for 4 different families (Halictidae, Colletidae, Apidae, and Megachilidae) in the order Hymenoptera and were analyzed alongside the bee’s Critical Thermal Maximum (CT Max) data, the maximum heat a bee can withstand before losing mobility, to gain insight on the bee's ability to survive in extreme hot temperatures. It is evident from the data that larger bees, characterized by smaller SA/V ratios, presented a higher CT Max suggesting their greater chance of survival in higher temperatures than smaller bees due to less heat exchange relative to their body size. This data implies that with the earth’s rising global temperatures larger bees will likely perform better than smaller bees. This poster was presented at the UCSB Center for Science & Engineering Partnerships Undergraduate Research Symposium, on August 9, 2023.
- Published
- 2023
26. FILM AND TELEVISION ANIMATION PRODUCTION TECHNOLOGY BASED ON EXPRESSION TRANSFER AND VIRTUAL DIGITAL HUMAN.
- Author
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NING ZHANG and BEILEI PU
- Subjects
MOTION capture (Cinematography) ,ANIMATED films ,TECHNOLOGICAL innovations ,DIGITAL technology ,TECHNOLOGY transfer ,DIGITAL storytelling - Abstract
The world of film and TV animation has witnessed a revolutionary transformation with the combination of Expression transfer and digital virtual Human technology. This paper delves into the superior methodologies and technological improvements in the discipline of animation production, especially specializing in how those technology are redefining the requirements and practices of animation in film and television. Expression transfer technology, a groundbreaking approach in animation, entails the transfer of facial expressions from real actors to lively characters. This technique not most effective enhances the realism of lively characters but additionally lets in for a extra nuanced and emotive performance, bridging the space among conventional animation and stay-action performances. Digital Human era, however, entails creating extraordinarily practical virtual representations of people. Those digital humans aren't mere caricatures or stylized variations however are reasonable in appearance and movement, way to advancements in motion seize, 3-D modeling, and synthetic intelligence. The mixture of those technologies is main to a new technology in animation where characters aren't only visually stunning however also exhibit a depth of emotion and realism previously unimaginable. This paper explores diverse case research and applications of these technology in current animation, highlighting their effect on storytelling, person improvement, and viewer engagement. It also addresses the demanding situations and moral considerations in employing these technologies, which includes retaining artistic integrity and the capacity for misuse. The research concludes with a forward-searching attitude on how Expression transfer and digital digital Human technologies are set to redefine the future of movie and television animation, presenting new opportunities for creative expression and narrative intensity. [ABSTRACT FROM AUTHOR]
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- 2024
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27. Developing a Multitasking Augmented Reality Application for Theatrical and Cultural Content
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Irene Mamakou, Georgios Karafotias, Gabriel Gkourdoglou, Georgios Loumos, Antonios Kargas, and Dimitrios Varoutas
- Subjects
augmented reality ,3D modeling ,digital application ,theater ,theatrical costumes ,Archaeology ,CC1-960 - Abstract
Implementing digital technologies, such as augmented reality and 3D modeling, to various cultural sectors is an ongoing procedure, especially favorable after the COVID-19 pandemic. Even though such technologies are common to museums, galleries and archaeological places all over the world, little research or practical cases have been developed when it comes to theaters and theatrical costumes. The proposed research article describes the methodology of both reference material collection and application development, while an analysis of functions and aesthetic results are described, especially when it comes to 3D modeling. This paper’s aim is to reveal that theatrical operations (as part of the cultural sector) as well as structured parts (such as acts, performances and costumes) can be preserved and served to larger audiences via technological means, such as an augmented reality application.
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- 2024
- Full Text
- View/download PDF
28. 3D technologies in STEAM education
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Ivaylo Staribratov and Nikol Manolova
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3D modeling ,3D printing ,FDM ,STEAM ,Research ,Innovation ,Education - Abstract
Abstract The article presents the application of 3D technologies in STEAM education through a conducted scientific research, highlighting the role of 3D modeling and 3D printing as an innovative approach in achieving an interdisciplinary learning model. The research included the following stages: preparation for designing a detailed 3D steam locomotive model; analysis of process difficulties; giving students and lecturers the opportunity to perform a specific modeling task, using basic primitives from solid geometry, as well as a questionnaire to analyze and evaluate the skills and knowledge of the participants in the 3D modeling field. In this context, the preparation process of a 3D steam locomotive model for educational purposes, using Autodesk 3ds Max software, is presented, and the 3D printing technology FDM is examined. We issued a challenge to the participants in the research to design a non-complex 3D model, using unfamiliar 3D modeling software Blender, within a limited time. The questionnaire covered topics in education, science, art, STEAM, and 3D modeling. The goal is to showcase the role of the integration of 3D technologies in educational environments with the idea of developing key skills and knowledge in learners.
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- 2024
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29. Revitalization of regular landscape compositions of the park-monument of landscape art «Sharivskyi»
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Nadiya Maksymenko, Olena Gololobova, Vadym Gololobov, and Viktar Kireyeu
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sustainable communities ,life on land ,landscape ,ecotourism ,recreation ,ecological revitalization ,monument park ,landscape art ,sharivskyi ,geoinformation modeling ,3d modeling ,graphic reconstruction ,dendrological plan ,ornamental plants ,Physical geography ,GB3-5030 ,Geology ,QE1-996.5 - Abstract
Introduction. The perception of the landscape as a space for living has led to the formation and development of a special group of anthropogenic landscapes, namely garden and park landscapes, which are characterized by a wide range of functions from utilitarian to aesthetic and spiritual. Currently, approximately 30% of cultural heritage sites are in disrepair, and 80% require serious restoration work. Therefore, the revitalization of the landscape structure of historical garden and park landscapes is an urgent scientific problem and meets two sustainable development goals (goal 11 Sustainable cities and communities and goal 15 - Life on land). The purpose of article. To substantiate the concept of revitalization of regular landscape compositions of the park-monument of landscape gardening art of national importance "Sharivskyi" and to provide a graphic 3D model of architectural, planning and volumetric-spatial solutions of the proposed concept of revitalization of regular compositions of the studied landscape. Research methods. Method of historical analysis: with a focus on the period of the highest embodiment of the artistic compositional intent of the restored space, when the estate belonged to the successful sugar producer Leopold Koenig. The graphic presentation of architectural, planning, and three-dimensional solutions of the proposed revitalization concepts for the studied landscapes was achieved through the use of QGIS 3.28.3-Firenze 2022-08-31, Sketchup, and Realtime Landscaping Architect software tools. Main findings. In order to preserve the original idea and characteristics of the landscape compositions, the concept of revitalization of the White Garden was proposed, which was suggested by the "Genius loci" of the historical landscape of Sharivsky Park. Using the QGIS geographic information system, OSM standard map and Google Satellite Hybrid map, the 3D authentic relief of regular landscape compositions of the Sharivsky Palace and Park Complex was modeled. Using the Sketchup 2020 software tool, a graphical representation of the architectural, planning, and three-dimensional solutions of the studied historical landscape was made. The Sketchup 2020 software tool was also used for the graphic 3D reconstruction of numerous architectural details that adorn the palace, including balustrades, windows, doors, and towers decorated with ornaments. The dendrological plan was developed using species and cultivars of ornamental plants with identified historical and aesthetic value to ensure the continuity of new and preserved plant elements of landscape compositions. Scientific novelty and practical value. The proposed vision of preserving the sustainable features of the place, the selection of plants with identified historical and substantiated aesthetic value can be used in the complex reconstruction of regular garden and park landscapes of the Sharivskyi Park, a monument of landscape gardening art of national importance.
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- 2024
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30. The Return of the Warrior: Combining Anthropology, Imaging Advances, and Art in Reconstructing the Face of the Early Medieval Skeleton
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Ana Curić, Ivan Jerković, Fabio Cavalli, Ivana Kružić, Tina Bareša, Andrej Bašić, Marko Mladineo, Robert Jozić, Goran Balić, Duje Matetić, Deni Tojčić, Krešimir Dolić, Ivan Skejić, and Željana Bašić
- Subjects
MSCT ,3D modeling ,facial reconstruction ,forensic art ,Medieval period ,Croatia ,Archaeology ,CC1-960 - Abstract
Reconstructing the face from the skull is important not only for forensic identification but also as a tool that can provide insight into the appearance of individuals from past populations. It requires a multidisciplinary approach that combines anthropological knowledge, advanced imaging methods, and artistic skills. In the present study, we demonstrate this process on the skull of an early medieval warrior from Croatia. The skeletal remains were prepared and scanned using multi-slice computed tomography (MSCT) and examined using standard anthropological and radiological methods. The analysis revealed that the remains belonged to a 35–45-year-old male individual who had suffered severe cranial trauma, probably causing his death. From MSCT images, we reconstructed a three-dimensional (3D) model of the skull, on which we digitally positioned cylinders demarking the soft tissue thickness and created the face with a realistic texture. A 3D model of the face was then optimized, printed, and used to produce a clay model. Sculpturing techniques added skin textures and facial features with scars and trauma manifestations. Finally, after constructing a plaster model, the model was painted and refined by adding fine details like eyes and hair, and it was prepared for presentation in the form of a sculpture.
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- 2024
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- View/download PDF
31. Failure probability simulation of passive protection net for collapses and rockfalls in typical karst area
- Author
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Yancheng LU, Jun LI, Feng LIANG, Wenbing SHI, and Junyi WANG
- Subjects
3d modeling ,rocpro3d ,passive protection net ,interception effect ,failure probability ,collapse and rockfall ,typical karst area ,Geology ,QE1-996.5 ,Engineering geology. Rock mechanics. Soil mechanics. Underground construction ,TA703-712 - Abstract
Guizhou Province is located in Southwest of China, with many mountains and hills, and is a typical karst topography and geomorphology area with frequent geological disasters such as collapses and landslides. The existing dangerous rock mass in the Xiaotunyan collapse zone in Sinan County has large range and volume, and fissures, concave cavities, and solution caves have developed. Objective In order to study the failure probability of passive protection nets for rockfalls in typical karst areas. Methods A three-dimensional model of the collapse zone through high-precision realistic modeling technology was constructed, by which the movement process of collapsed falling rocks was simulated. According to the results of the field investigation, aerial photography of the unmanned aerial vehicle and numerical simulation, an appropriate rockfall location layout for the passive protection net was selected. And based on the identification of the rockfall particle size, the different rockfall particle sizes were selected to simulate the interception effect of the passive protection net, then the failure probability of the passive protective net can be calculated. Results The results show that the rockfall breakthrough rates of 13 particle sizes vary: the interception effect of small to medium sized falling rocks with particle sizes ranging from 0.25 m to 2.25 m is effective, but the interception rate of passive protection net cannot reach 100%. When the particle size is larger than 2.25 m, the passive protection net fails, that is the upper limit of the design of the passive protection net under the Xiaotunyan collapse zone is the 2.25 m particle size of rockfall. According to the calculation, the failure probability of all rockfall particle sizes intercepted by the passive protection net is less than 5%, which is within the acceptable scope. Conclusion The research results provide a reference for rockfall protection measures in the Xiaotunyan collapse zone and are of great significance for the protection of life and property safety for people in karst mountainous areas.
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- 2024
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32. Generating open-source 3D phytoplankton models by integrating photogrammetry with scanning electron microscopy.
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Xuerong Sun, Brewin, Robert J. W., Hacker, Christian, Viljoen, Johannes J., and Mengyu Li
- Subjects
BIOTIC communities ,SCIENCE education ,MARINE phytoplankton ,SCANNING electron microscopes ,SCIENTIFIC method - Abstract
The community structure and ecological function of marine ecosystems are critically dependent on phytoplankton. However, our understanding of phytoplankton is limited due to the lack of detailed information on their morphology. To address this gap, we developed a framework that combines scanning electronmicroscopy (SEM) with photogrammetry to create realistic 3D (three-dimensional)models of phytoplankton. The workflow of this framework is demonstrated using two marine algal species, one dinoflagellate Prorocentrum micans and one diatom Halamphora sp. The resulting 3D models are made openly available and allow users to interact with phytoplankton and their complex structures virtually (digitally) and tangibly (3D printing). They also allow for surface area and biovolume calculations of phytoplankton, as well as the exploration of their light scattering properties, which are both important for ecosystem modeling. Additionally, by presenting these models to the public, it bridges the gap between scientific inquiry and education, promoting broader awareness on the importance of phytoplankton. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
- View/download PDF
33. Implementation of 3D Printing and Modeling Technologies for the Fabrication of Dose Boluses for External Radiotherapy at the CLCC of Sétif, Algeria.
- Author
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Kharfi, Faycal, Benkahila, Karim, Boulkhessaim, Foued, Betka, Abderrahim, Meziri, Amina, Khelfa, Sara, and Ghediri, Noussaiba
- Subjects
BOLUS radiotherapy ,THREE-dimensional printing ,BOLUS drug administration ,SURFACE topography ,POLYLACTIC acid - Abstract
Objective: In external radiotherapy, dose boluses and compensators are used for treatment of irregular facial topography surfaces. In such cases, skewed isodose curves need to be addressed using a bolus that gives the deep dose distribution a shape adapted to the anatomical structures to be protected or irradiated. The combination of 3D modeling and printing technologies is a promising alternative to the conventional inaccurate and uncomfortable bolus fabrication technique. In this work, the proposed technologies will be used in the design and fabrication of high-performance and high-accuracy boluses that respond to the main constraints on metrology, adhesion to the patient's surface, comfort, and dose delivery. Methods: As a first phase in the implementation of the proposed solution, 3D printing materials, to be used in the fabrication of radiotherapy boluses, were selected and characterized to check how they respond to the required criteria on functionality, safety, and quality. Results: The obtained results show that among the studied materials, thermoplastic polyurethane (TPU) was found to be slightly more suitable than polylactic acid (PLA) for the fabrication of 3D printing boluses but for some kinds of treatments, PLA may be preferred despite its relative rigidity. Conclusion: In this work, procedures for dose bolus fabrication were proposed, and necessary data were obtained for some available 3D printing materials (TPU and PLA) that can be used for targeted applications. This achievement is a major step toward the final implementation of 3D modeling and printing technologies for the efficient fabrication of radiotherapy dose boluses. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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34. Preservación del patrimonio cultural y tradiciones: proyecto académico desde las cátedras de Antropología Visual y Modelado 3D.
- Author
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Martínez Vergara, Jessica and Samaniego López, Mariela
- Subjects
PUBLIC spaces ,CULTURAL values ,CLASSROOM activities ,DANCE ,GRAPHIC design ,OPENNESS to experience - Abstract
Copyright of Cuadernos del Centro de Estudios de Diseño y Comunicación is the property of Cuadernos del Centro de Estudios de Diseno y Comunicacion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
35. Molecular insights into STAT1a protein in rohu (Labeo rohita): unveiling expression profiles, SRC homology domain recognition, and protein-protein interactions triggered by poly I: C.
- Author
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Das, Basanta Kumar, Panda, Soumya Prasad, Pradhan, Smruti Priyambada, Raut, Subhashree Subhasmita, Kumari, Mala, and Meena, Dharmendra Kumar
- Subjects
ROHU ,IMMUNE response in fishes ,PROTEIN-protein interactions ,AMINO acid sequence ,STAT proteins - Abstract
Introduction: STAT1a is an essential signal transduction protein involved in the interferon pathway, playing a vital role in IFN-alpha/beta and gamma signaling. Limited information is available about the STAT protein in fish, particularly in Indian major carps (IMC). This study aimed to identify and characterize the STAT1a protein in Labeo rohita (LrSTAT1a). Methods: The full-length CDS of LrSTAT1a transcript was identified and sequenced. Phylogenetic analyses were performed based on the nucleotide sequences. The in-vivo immune stimulant poly I: C was used to treat various tissues, and the expression of LrSTAT1a was determined using quantitative realtime polymerase chain reaction (qRT-PCR). A 3D model of the STAT1a protein was generated using close structure homologs available in the database and checked using molecular dynamics (MD) simulations. Results: The full-length CDS of Labeo rohita STAT1a (LrSTAT1a) transcript consisted of 3238 bp that encoded a polypeptide of 721 amino acids sequence was identified. Phylogenetic analyses were performed based on the nucleotide sequences. Based on our findings, other vertebrates share a high degree of conservation with STAT1a. Additionally, we report that the in vivo immune stimulant poly I: C treatment of various tissues resulted in the expression of LrSTAT1a as determined by quantitative real-time polymerase chain reaction (qRT-PCR). In the current investigation, treatment with poly I: C dramatically increased the expression of LrSTAT1a in nearly every organ and tissue, with the brain, muscle, kidney, and intestine showing the highest levels of expression compared to the control. We made a 3D model of the STAT1a protein by using close structure homologs that were already available in the database. The model was then checked using molecular dynamics (MD) simulations. Consistent with previous research, the MD study highlighted the significance of the STAT1a protein, which is responsible for Src homology 2 (SH2) recognition. An important H-bonding that successfully retains SH2 inside the STAT1a binding cavity was determined to be formed by the conserved residues SER107, GLN530, SER583, LYS584, MET103, and ALA106. Discussion: This study provides molecular insights into the STAT1a protein in Rohu (Labeo rohita) and highlights the potential role of STAT1a in the innate immune response in fish. The high degree of conservation of STAT1a among other vertebrates suggests its crucial role in the immune response. The in-vivo immune stimulation results indicate that STAT1a is involved in the immune response in various tissues, with the brain, muscle, kidney, and intestine being the most responsive. The 3D model and MD study provide further evidence of the significance of STAT1a in the immune response, specifically in SH2 recognition. Further research is necessary to understand the specific mechanisms involved in the IFN pathway and the role of STAT1a in the immune response of IMC. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
- View/download PDF
36. Chiaroscuro Photogrammetry: Revolutionizing 3D Modeling in Low Light Conditions for Archaeological Sites.
- Author
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Jalandoni, Andrea, Haubt, Robert, Walshe, Keryn, and Nowell, April
- Abstract
Archaeologists working in low light conditions have had difficulty producing 3D models that are both scientific and aesthetic. We are presenting chiaroscuro photogrammetry, a technique inspired by Renaissance artists, to solve this problem. The method is portable, inexpensive, low impact, adaptable, fast, and requires no additional expertise beyond photogrammetry. While first trialed on a rock and a tree that produced promising outcomes, the true test was on a panel of finger flutings in a completely dark chamber of Koonalda Cave, South Australia. The result was a 3D model of the finger flutings with evenly balanced light and deep colors, and the geometry of the model was free from holes and visible artifacts. The 3D model produced using chiaroscuro photogrammetry was visually and geometrically accurate, even more so than flash photogrammetry. Chiaroscuro photogrammetry has the potential to revolutionize 3D modeling in low light conditions for a variety of archaeological contexts. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
37. Bifidobacterium bifidum SAM-VI Riboswitch Conformation Change Requires Peripheral Helix Formation.
- Author
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Xiao, Wenwen, Liu, Guangfeng, Chen, Ting, Zhang, Yunlong, and Lu, Changrui
- Subjects
- *
BIFIDOBACTERIUM bifidum , *ISOTHERMAL titration calorimetry , *ADENOSYLMETHIONINE , *GENE expression , *CRYSTALLOGRAPHY - Abstract
The Bifidobacterium bifidum SAM-VI riboswitch undergoes dynamic conformational changes that modulate downstream gene expression. Traditional structural methods such as crystallography capture the bound conformation at high resolution, and additional efforts would reveal details from the dynamic transition. Here, we revealed a transcription-dependent conformation model for Bifidobacterium bifidum SAM-VI riboswitch. In this study, we combine small-angle X-ray scattering, chemical probing, and isothermal titration calorimetry to unveil the ligand-binding properties and conformational changes of the Bifidobacterium bifidum SAM-VI riboswitch and its variants. Our results suggest that the SAM-VI riboswitch contains a pre-organized ligand-binding pocket and stabilizes into the bound conformation upon binding to SAM. Whether the P1 stem formed and variations in length critically influence the conformational dynamics of the SAM-VI riboswitch. Our study provides the basis for artificially engineering the riboswitch by manipulating its peripheral sequences without modifying the SAM-binding core. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
38. Developing a Multitasking Augmented Reality Application for Theatrical and Cultural Content.
- Author
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Mamakou, Irene, Karafotias, Georgios, Gkourdoglou, Gabriel, Loumos, Georgios, Kargas, Antonios, and Varoutas, Dimitrios
- Subjects
- *
THEATRICAL costume , *AUGMENTED reality , *COVID-19 pandemic , *REFERENCE sources , *DIGITAL technology - Abstract
Implementing digital technologies, such as augmented reality and 3D modeling, to various cultural sectors is an ongoing procedure, especially favorable after the COVID-19 pandemic. Even though such technologies are common to museums, galleries and archaeological places all over the world, little research or practical cases have been developed when it comes to theaters and theatrical costumes. The proposed research article describes the methodology of both reference material collection and application development, while an analysis of functions and aesthetic results are described, especially when it comes to 3D modeling. This paper's aim is to reveal that theatrical operations (as part of the cultural sector) as well as structured parts (such as acts, performances and costumes) can be preserved and served to larger audiences via technological means, such as an augmented reality application. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. CellVis2: a conference on visualizing the molecular cell.
- Author
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Autin, Ludovic, Goodsell, David S., Viola, Ivan, and Olson, Arthur
- Subjects
- *
CONFERENCES & conventions , *DATA integration , *ELECTRON microscopy - Abstract
In January 2024, a targeted conference, 'CellVis2', was held at Scripps Research in La Jolla, USA, the second in a series designed to explore the promise, practices, roadblocks, and prospects of creating, visualizing, sharing, and communicating physical representations of entire biological cells at scales down to the atom. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
- View/download PDF
40. Inteligencia artificial para la creación de modelos 3D aplicados en un ambiente de realidad virtual.
- Author
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Santa Quintero, Ricardo Andrés, García Sarmiento, Carolina Andrea, and Infante Andrade, Juan Esteban
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ARTIFICIAL intelligence ,GROUPOIDS ,RESEARCH teams ,SHOWROOMS ,COMPUTER software - Abstract
Copyright of Revista Ciencia y Poder Aéreo is the property of Escuela de Postgrados de la Fuerza Aerea Colombiana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
41. 弹性波CT法与超声法在桥墩混凝土质量无损检测中 的应用研究.
- Author
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官显金, 庞铁军, and 赵一帆
- Abstract
Copyright of Guangdong Architecture Civil Engineering is the property of Guangdong Architecture Civil Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2024
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42. Augmented Reality in Elementary Education: System Architecture for Implementing an Interactive and Immersive E-Learning Application.
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Ghosh, Apurba, Ghosh, Anindya, Salah Uddin, Md., Rahman, Mizanur, and Hasan, Kazi Jahid
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AUGMENTED reality ,ELEMENTARY education ,DIGITAL learning ,LANGUAGE acquisition ,INTERACTIVE learning ,SOUND recordings ,HEAD-mounted displays - Abstract
Early childhood language acquisition is crucial, but complex scripts such as Bengali present challenges. BIPLOB, an Android-based augmented reality (AR) application, seeks to revolutionize language learning by introducing interactive 3D models and meticulously recorded audio pronunciations. Targeting both engagement and accuracy, BIPLOB addresses issues encountered by traditional methods. Its optimized workflow offers a replicable framework for future AR-based language learning applications, especially for complex scripts. BIPLOB paves the way for immersive and effective early language acquisition through the transformative power of AR technology. [ABSTRACT FROM AUTHOR]
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- 2024
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43. Modeling and Data Mining Analysis for Long-Term Temperature-Stress-Strain Monitoring Data of a Concrete Gravity Dam.
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Zhou, Tao, Ma, Ning, Su, Xiaojun, Wu, Zhigang, Zhong, Wen, and Zhang, Ye
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GRAVITY dams ,CONCRETE dams ,DAM safety ,DATA mining ,DAM failures ,ANALYTIC hierarchy process ,DATA analysis - Abstract
The safety condition of concrete gravity dams is influenced by multiple factors, and assessing their safety solely based on a single factor is difficult to comprehensively evaluate. Therefore, this paper proposes a comprehensive modeling and analysis approach to assess dam safety by considering long-term temperature, stress, and strain monitoring data of actual concrete gravity dams. Firstly, the K-means clustering algorithm is utilized to classify the data. Then, the study area of the dam is meshed and three indicator evaluation values for all the elements are calculated. The other elements' evaluation values can be obtained by the Inverse Distance Weighting (IDW) method. Finally, the analytic hierarchy process extended by the D numbers preference relation (D-AHP) method is applied to compute the weights of temperature, stress, and strain and evaluate the dam's safety comprehensively. The effectiveness of this method is validated through application to specific engineering cases. The results demonstrate that compared to assessing methods considering only single factors, the comprehensive evaluation method proposed in this paper can more comprehensively and accurately reflect the actual safety condition of concrete gravity dams, providing important references for engineering decision-making. [ABSTRACT FROM AUTHOR]
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- 2024
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44. The Return of the Warrior: Combining Anthropology, Imaging Advances, and Art in Reconstructing the Face of the Early Medieval Skeleton.
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Curić, Ana, Jerković, Ivan, Cavalli, Fabio, Kružić, Ivana, Bareša, Tina, Bašić, Andrej, Mladineo, Marko, Jozić, Robert, Balić, Goran, Matetić, Duje, Tojčić, Deni, Dolić, Krešimir, Skejić, Ivan, and Bašić, Željana
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SKELETON , *COMPUTED tomography , *ANTHROPOLOGY , *ANTHROPOMETRY , *SKULL , *FRESCO painting , *POLYMER clay - Abstract
Reconstructing the face from the skull is important not only for forensic identification but also as a tool that can provide insight into the appearance of individuals from past populations. It requires a multidisciplinary approach that combines anthropological knowledge, advanced imaging methods, and artistic skills. In the present study, we demonstrate this process on the skull of an early medieval warrior from Croatia. The skeletal remains were prepared and scanned using multi-slice computed tomography (MSCT) and examined using standard anthropological and radiological methods. The analysis revealed that the remains belonged to a 35–45-year-old male individual who had suffered severe cranial trauma, probably causing his death. From MSCT images, we reconstructed a three-dimensional (3D) model of the skull, on which we digitally positioned cylinders demarking the soft tissue thickness and created the face with a realistic texture. A 3D model of the face was then optimized, printed, and used to produce a clay model. Sculpturing techniques added skin textures and facial features with scars and trauma manifestations. Finally, after constructing a plaster model, the model was painted and refined by adding fine details like eyes and hair, and it was prepared for presentation in the form of a sculpture. [ABSTRACT FROM AUTHOR]
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- 2024
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45. Technology of Mapping of Volcanic-Sedimentary Strata in a Complexly Dislocated Terrigenous Structure according to Seismic and Magnetic Exploration Data (Pechora Sea).
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Lygin, I. V., Sokolova, T. B., Kleschina, L. N., Kuznetsov, K. M., Nikitina, V. A., Shirokova, T. P., Krivosheya, K. V., Chernikov, K. S., and Mazekina, A. V.
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SEISMIC prospecting , *MAGNETIC anomalies , *STRUCTURAL reliability , *SEDIMENTARY rocks , *MAGNETIC properties , *GEOLOGICAL modeling - Abstract
The geological efficiency of seismic exploration and, as a result, the reliability of structural constructions in areas of intense tectonic dislocations (normal, reverse and thrust faults) is significantly reduced. At the same time, it is in such areas, that the presence of lithostratigraphic complexes contrasting in density or magnetic properties in the section and the abundance of subvertical boundaries provide prerequisites for the successful use of potential field methods (gravity exploration, magnetic exploration) to verify and supplement the structural interpretation of seismic exploration data. The paper presents the technology of complex interpretation of magnetic and seismic exploration data, tested on one of the objects of the Pechora Sea. In the course of the research, the connection of local magnetic anomalies with the seismic structural plan was established, which made it possible to identify and trace a magnetically active complex in the sedimentary strata with parameters typical of volcanogenic sedimentary rocks, weakly contrasting in seismic records. As a result of 3D modeling, the morphology of the roof and the base of the magnetic layer were determined, and the three-dimensional distribution of magnetization was calculated. It is proved that the sources of local magnetic field anomalies, a priori considered as isolated intrusive massifs, are associated with the distribution of magnetization within a single stratified volcanogenic-sedimentary strata. The obtained result was used in the construction of an updated geological and geophysical model. The developed technology is recommended as one of the promising approaches for building seismomagnetic models in similar physical and geological situations. [ABSTRACT FROM AUTHOR]
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- 2024
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46. Investigation of the morphometric characteristics of internal carotid artery between sexes and in patients with intracranial aneurysms.
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Cevik, Yigit, Onan, Hasan Bilen, Erdem, Huseyin, Kizilkanat, Emine Dondu, Yucel, Sevinc Puren, and Oguz, Ozkan
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INTERNAL carotid artery , *INTRACRANIAL aneurysms , *ANTERIOR cerebral artery , *DIGITAL subtraction angiography , *SEXUAL dimorphism - Abstract
Purpose: The purpose of this study is to investigate the morphometric properties of the internal carotid artery (ICA) by measuring the diameters and angles of its segments and exploring variations related to sex and the presence of aneurysms. Methods: Digital subtraction angiography (DSA) images were utilized from 130 aneurysm patients and 75 non-aneurysm individuals to create 3D ICA models using 3D Slicer software. Segment diameters were measured via Autodesk Meshmixer 3.5.474 and angles were evaluated using ImageJ software. Results: In total, DSA images of 130 aneurysm patients and 75 individuals with normally reported carotid systems were evaluated. It was found that the intracranial aneurysms (IAs) were predominantly formed on the anterior cerebral artery (ACA) in males (%43), whereas in females IAs were frequently localized in the C6 segment (31.7%) and middle cerebral artery (MCA) (30.2%). In the control group, the evaluation of gender differences in segment diameters and angles revealed that males had significantly larger C4 and C5 segment diameters (4.62 vs. 4.32 mm and 4.41 vs. 4.09 mm, respectively) and a greater C6 angle (146.9° vs. 139.7°) compared to females. Comparisons between patients with an aneurysm at the anterior cerebral artery (ACA) and the control group revealed that the ACA group had wider diameters in the C1 (4.88 vs. 4.53 mm), C3 (4.65 vs. 4.4 mm), C5 (4.51 vs. 4.25 mm), and ACA (2.36 vs. 2.06 mm) segments. Additionally, the ACA group had wider angles in the ACA (104.1° vs. 94.1°) and C6 segments (147.7° vs. 143.3°), whereas the control group exhibited wider angles in the middle cerebral artery (MCA) segment (141.5° vs. 135.5°) compared to the ACA aneurysm group. Patients with anterior cerebral artery (ACA) aneurysms exhibited larger diameters in C1, C3, C5, C6, and ACA segments compared to the control group. Additionally, while the control group had larger MCA angle, patients with ACA aneurysms had larger angles in C6 segment and ACA. Conclusion: Our results demonstrated that formation of aneurysms is affected by anatomical configuration of the ICA as well as sex characteristics, particularly regarding the ACA and MCA bifurcation angles, which showed associations with aneurysms in the respective branches. [ABSTRACT FROM AUTHOR]
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- 2024
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47. DOCUMENTACIÓN DIGITAL DEL PATRIMONIO EDIFICADO: MODELADO EN NUBES DE PUNTOS 3D DE LA IGLESIA DE BALBANERA, ECUADOR.
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Alejandro Velastegui-Cáceres, Luis, Guevara-Bonifaz, Byron, Velastegui-Cáceres, Julia, Carretero Poblete, Pedro A., and Espinoza-Figueroa, Edison
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ARCHITECTURAL designs , *BUILDING information modeling , *ARCHITECTURAL details , *OPTICAL scanners , *HISTORIC buildings , *DOCUMENTATION - Abstract
Today, built heritage faces the threat of deterioration, destruction or disappearance due to various causes, whether of natural origin or caused by human activities. Faced with this challenge, the need arises to use cutting-edge technological tools that enable the exhaustive documentation of each historical architectural element as a measure to preserve the tangible heritage. This research focuses on the HBIM (Historic Building Information Modeling) survey of the Balbanera Church (Colta, Ecuador) for its documentation. This church was selected for its historical relevance and the high level of detail present in both its external structure and its interior. The methodology included the planning of the information survey, in situ survey with 3D laser scanner technology, processing of the data obtained, and generation of the HBIM model. As a result, the model of the Balbanera Church, the quantification of work materials, and the documentation of architectural plans both in plan and elevation were achieved, providing professionals with accurate and reliable information for future interventions to ensure the preservation of the built heritage. [ABSTRACT FROM AUTHOR]
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- 2024
48. Intelligent decision-making system for mineral processing production indices based on digital twin interactive visualization.
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Zhang, Kesheng, Xu, Quan, Liu, Changxin, and Chai, Tianyou
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The multi-layer indices decision-making of complex industrial processes is the key to reducing costs and improving production efficiency. With the development of the Industrial Internet, a large number of industrial streaming data and intelligent algorithms have brought opportunities for optimizing plant-wide production indices. However, due to the strong dynamic and coupling of the production process, the intelligent system based only on the optimization algorithm cannot give practical data analysis suggestions and decision results, so a human–computer interactive visual analysis and index decision system are urgently needed. This paper combines multi-layer indices decision-making algorithms with 3D digital twin visual analysis technology to propose an intelligent decision-making system for mineral processing production indices based on 3D digital twin interactive visualization (DTIV). The DTIV system provides users a 3D digital twin modeling view from the production park, workshop, and equipment scenes. It adopts visualization technology that seamlessly integrates 3D and 2D to help users obtain indices decision input information and hidden data features from real-time stream data with different spatiotemporal data characteristics. In addition, the DTIV system also combines a multi-layer indices optimization decision-making algorithms engine and designs a human–machine interaction indices decision interface and indices decision execution visual analysis interface to improve users' production perception and decision-making ability. Through our collaboration with domain experts, carefully designed interviews, and prototype system evaluation in a beneficiation plant, the effectiveness and usability of the system have been proven. [ABSTRACT FROM AUTHOR]
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- 2024
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49. Optimizing Socket-Tunnel Position for Meniscal Allograft Transplantation Combined With ACL Reconstruction: A 3D Model Analysis.
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DeFroda, Steven, Bourbon de Albuquerque II, João, Bezold, Will, Cook, Cristi R., Nuelle, Clayton W., Stannard, James P., and Cook, James L.
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ANTERIOR cruciate ligament surgery ,MENISCUS (Anatomy) ,THREE-dimensional imaging ,ORTHOPEDIC implants ,COMPUTED tomography ,KRUSKAL-Wallis Test ,ARTHROSCOPY ,HOMOGRAFTS ,TIBIA ,MANN Whitney U Test ,DESCRIPTIVE statistics ,TREATMENT failure ,KNEE ,CONFIDENCE intervals - Abstract
Background: Socket-tunnel overlap during meniscal allograft transplantation (MAT) combined with anterior cruciate ligament reconstruction (ACLR) may compromise graft integrity and lead to impaired fixation and treatment failure. Purpose/Hypothesis: The purpose of this study was to determine optimal socket-tunnel drilling parameters for medial and lateral MAT with concurrent ACLR using artificial tibias and computed tomography (CT) scans for 3-dimensional (3D) modeling. It was hypothesized that clinically relevant socket tunnels could be created to allow for concurrent medial or lateral MAT and ACLR without significant risk for overlap at varying tunnel guide angles. Study Design: Descriptive laboratory study. Methods: A total of 27 artificial right tibias (3 per subgroup) were allocated to 9 experimental groups based on the inclination of the socket tunnels (55°, 60°, and 65°) created for simulating medial and lateral MAT and ACLR. Five standardized socket tunnels were created for each tibia using arthroscopic guides: one for the ACL tibial insertion and one for each meniscus root insertion. CT scans were performed for all specimens and sequentially processed using computer software to produce 3D models for quantitative assessment of socket-tunnel overlap risk. Statistical analysis was performed with Kruskal-Wallis and Mann-Whitney U tests. Results: No subgroup consistently presented significantly safer distances than other subgroups for all distances measured. Three cases (11%) and 24 cases (~90%) of tunnel overlap occurred between the ACL tunnel and tunnels for medial and lateral MAT, respectively. Most socket-tunnel overlap (25 of 27; 92.6%) occurred between sockets at depths ranging between 6.3 and 10 mm from the articular surface. For ACLR and posterior root of the lateral meniscus setting, the guide set at 65° increased socket-tunnel distances. Conclusion: When combined ACLR and MAT using socket tunnels for graft fixation is performed, the highest risk for tibial socket-tunnel overlap involves the ACLR tibial socket and the lateral meniscus anterior root socket at a depth of 6 to 10 mm from the tibial articular surface. Clinical Relevance: Setting tibial guides at 65° to the tibial articular surface with the tunnel entry point anteromedial and socket aperture location within the designated anatomic "footprint" will minimize the risk for socket-tunnel overlap. [ABSTRACT FROM AUTHOR]
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- 2024
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50. Türk Motiflerinin Fotogrametrik Yöntemlerle Dijitalleştirilmesi ve Arşivlenmesi.
- Author
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Menekşe, Eda and Ulvi, Ali
- Abstract
Copyright of Türkiye Fotogrametri Dergisi is the property of Mersin University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
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