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Due to the competitive nature of the construction industry, the efficiency of requirement analysis is important in enhancing client satisfaction and a company's reputation. For example, determining the optimal configuration of panels (generally called panelization) that form the structure of a building is one aspect of cost estimation. However, existing methods typically rely on rule-based approaches that may lead to suboptimal material usage, particularly in complex designs featuring angled walls and openings. Such inefficiency can increase costs and environmental impact due to unnecessary material waste. To address these challenges, this research proposes a Panelization Algorithm for Architectural Designs, referred to as PAAD, which utilizes a genetic evolutionary strategy built on the 2D bin packing problem. This method is designed to balance between strict adherence to manufacturing constraints and the objective of optimizing material usage. PAAD starts with multiple potential solutions within the predefined problem space, facilitating dynamic exploration of panel configurations. It approaches structural rules as flexible constraints, making necessary corrections in post-processing, and through iterative developments, the algorithm refines panel sets to minimize material use. The methodology is validated through an analysis against an industry implementation and expert-derived solutions, highlighting PAAD's ability to surpass existing results and reduce the need for manual corrections. Additionally, to motivate future research, a synthetic data generator, the architectural drawing encodings used, and a preliminary interface are also introduced. This not only highlights the algorithm's practical applicability but also encourages its use in real-world scenarios. [ABSTRACT FROM AUTHOR]

Creative mapping is a type of critical observational drawing that uses cartographic art to negotiate personal visions, social constructions, and objective representations of the world. Geographers have been experimenting with this method to produce their own creative maps and in the process have begun to explore the effects and implications of these works for engaging with the places and relationships of research in professional and personal life. This essay puts theoretical work on researcher vulnerability into conversation with scholarship on place dialogue to explore how creative mapping facilitates relationship accountability in research. The transformation in the author’s creative-mapping practice illustrates the agency of place to communicate the realities and responsibilities of relationship through art, and suggests how creative mapping enhances our capacity for place dialogue through artistic methods that negotiate the more-than-human entanglements of research. [ABSTRACT FROM AUTHOR]

AbstractBrainstorming activities are quite common in L1 education. However, limited attention has been paid to the concrete unfolding of students’ idea development as a temporal, multimodal, and collaborative process. In this article, we explore how a group of four upper primary students in Year 5 (age 11–12) design a board game in a teaching unit on young people’s communication and toxic language use on social media. The unit was part of an intervention carried out in a study on game-based learning in the school subject Danish L1. Our detailed analysis shows how the students’ development process involved an interplay of different timescales at the micro, meso, and macro level, and a use of different semiotic resources such as spoken and written language as well as drawn sketches for a game board. The layers of meaning expressed through the students’ dialogic talk resulted in a metaphorical chain of reasoning, where the students’ initial loose idea was gradually transformed into a final game concept. This reasoning across modalities was enforced through the choice of bringing in paper and pen for drawing. The study concludes by discussing how we can understand idea generation as a non-linear multimodal process in the L1 classroom, which may have implications for other productive tasks. [ABSTRACT FROM AUTHOR]

The attentional demands of drawing require both local processing of an object's details and global processing of its overall structure. In this study, we examined the extent to which artists have superior local and global processing skills, how these skills relate to artists' ability to draw realistically and to autistic-related traits, and whether artists initially take a local or global approach to drawing. Forty first-year college art students and 41 nonart students completed two tasks assessing local processing and two tasks assessing global processing. Participants completed two drawing tasks that assessed their ability to draw realistically, two copying tasks that assessed whether they showed a preference for initially copying the local or global aspects of an object, and the Autism-Spectrum Quotient that assessed autistic-related traits. We found that art students outperformed nonart students on both the local and global processing tasks and that drawing ability was related to performance on these tasks. We also found that art students were more likely than nonart students to initially copy the global features in their drawings. Finally, we found that art students did not exhibit more autistic-related traits than nonart students and that the number of autistic-related traits was unrelated to performance on the local and global processing, drawing, or copying tasks. These results suggest that art students have an attentional flexibility that allows them to process information at a local and global level but that they have a preference for initially drawing globally. [ABSTRACT FROM AUTHOR]

This study aims to investigate the phenomenon of hope in adolescents diagnosed with cancer and examine adolescents' lived experiences of hope. The study was conducted between November 2022 and March 2023. The study used a phenomenological-visual qualitative research design with 20 adolescents in the pediatric oncology ward. The purposive sampling method was used in the study. Data were collected using "Descriptive Characteristic Form," "Semi-structured Interview Form," "Drawing Technique," and "Mutual Storytelling Technique". The adolescents were instructed, "Let us draw our hopes," and asked to draw pictures. Each adolescent was interviewed about the drawings and asked four semistructured questions. Audio recordings of the interviews were made and transcribed. A hermeneutic phenomenological approach was used in the analysis of the data. Two main themes and four subthemes were identified in the study. Metaphorical and conceptual context was included in the theme of symbolizing and linking hope. Two subthemes, facilitators and barriers, were identified in the main theme of rooting hope. The study sheds light on hope experiences in adolescents receiving cancer treatment and guides healthcare professionals. [ABSTRACT FROM AUTHOR]

This article demonstrates scalable production of liquid metal (LM)-based microwires through the thermal drawing of extrudates. These extrudates were first co-extruded using a eutectic alloy of gallium and indium (EGaIn) as a core element and a thermoplastic elastomer, styrene–ethylene/butylene–styrene (SEBS), as a shell material. By varying the feed speed of the co-extruded materials and the drawing speed of the extrudate, it was possible to control the dimensions of the microwires, such as core diameter and shell thickness. How the extrusion temperature affects the dimensions of the microwire was also analyzed. The smallest microwire (core diameter: 52 ± 14 μm and shell thickness: 46 ± 10 μm) was produced from a drawing speed of 300.1 mm s−1 (the maximum attainable speed of the apparatus used), SEBS extrusion speed of 1.50 mm3 s−1, and LM injection rate of 5 × 105 μL s−1 at 190 °C extrusion temperature. The same extrusion condition without thermal drawing generated significantly large extrudates with a core diameter of 278 ± 26 μm and shell thickness of 430 ± 51 μm. The electrical properties of the microwires were also characterized under different degrees of stretching and wire kinking deformation which proved that these LM-based microwires change electrical resistance as they are deformed and fully self-heal once the load is removed. Finally, the sewability of these microwires was qualitatively tested by using a manual sewing machine to pattern microwires on a traditional cotton fabric. [ABSTRACT FROM AUTHOR]

With the development of the petroleum industry, the demand for materials for oilfield equipment is becoming increasingly stringent. The strength increase brought about by time strengthening is limited in meeting the needs of equipment development. The GH3625 alloy with different strength levels can be obtained through cold deformation and heat treatment processes. A study should be carried out to further develop the potential mechanical properties of GH3625. In this study, the GH3625 alloy was cold drawn with different reductions in area (0–30%) and heat treated, and its mechanical properties were tested. The microstructure of the alloy during deformation and heat treatment was characterized by methods such as optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) based on the principles of physical metallurgy. The strength increase caused by dislocation strengthening was calculated from the dislocation density, tested by X-ray diffraction (XRD). The calculated value was compared to the measured value, elucidating the strengthening effect of cold deformation and heat treatment. The results showed that the yield strength and yield ratio of the cold-drawn alloy significantly reduced after aging at 650 °C and 760 °C. Heat treatment can make a cold-deformed material recover, ablate dislocations, and greatly reduce the dislocation density in the microstructure of the GH3625 alloy, which was the main factor in the decrease in yield strength. The work-hardening gradient of the cold-drawn material varied greatly with different reductions in area. When the reduction in area was small (10%), the hardness gradient was obvious. When it increased to 30%, the alloy was uniformly strengthened as the deformation was transmitted to the axis. This study can provide more mechanical performance options for GH3625 alloy structural components in the petrochemical industry. [ABSTRACT FROM AUTHOR]

The article focuses on Henry David Thoreau's transition to incorporating drawings into his journal entries starting in 1850, sparked by encounters with Penobscot Indigenous artifacts. Topics include how Thoreau used drawing to complement his written observations, illustrating his shift from storing material for writing to integrating textual documentation. This change reflects a broader exploration of how drawing enabled Thoreau to bridge the gap between observing and describing.

Insects form a highly diverse taxonomic group, which has fundamental ecological functions, but is currently in a process of mass extinction. Here, we present the first cycle of design, implementation, and assessment of a didactic sequence oriented towards improving pre-service teachers' knowledge and appreciation of insect diversity. A methodological approach aiming to promote rigorous observation was followed, for which activities consisting of scientific and naturalistic drawing, among others, were included. The sequence was contextualised at a university organic garden, both to make learning meaningful and to promote new personal experiences with alive insects. We present the empirical results of the first implementation with a group of 28 pre-school (3–6 years) pre-service teachers at a Spanish university. Assessment was based on the analysis of drawings with a purposely designed instrument to assess constructive accuracy, and on the qualitative analysis of open questions that were posed before and after the implementation. Positive results were obtained regarding participants' knowledge of insect diversity, and positive impacts were observed also on their attitudes. Improvements to some activities are suggested before subsequent implementations of the didactic sequence. Finally, our study supports the effectiveness of maintaining organically managed gardens as facilities for biological education. [ABSTRACT FROM AUTHOR]

This paper analyzes Italian artist Auro Lecci's contribution to pioneering media art, beginning with his paintings and ending with his computer artworks (1969–1972). As the author suggests, Lecci's paintings were already characterized by an algorithmic method that the artist went on to develop in his computer-generated works. The paper first discusses the plotter drawings Lecci created at the Computing Center of the University of Pisa (CNUCE), and then focuses on his last computer art project, made at the University of Massachusetts in Amherst, to suggest connections between Lecci's work and artificial intelligence. [ABSTRACT FROM AUTHOR]

The author discusses his work creating programmable, generative analogue drawing machines over six decades in the context of the constructivist tradition and influenced by the Bauhaus German art school and the subsequent art, science, and technology movement. During the first three decades he developed a variety of machines and from 1990 followed a more analytical approach focusing on randomness, chaos, and subjectivity in art. This progressed to the author's PhD research program wherein he investigated innovative analogue programming systems that employed direct current motors, linkages, and cranks together with programmers, actuating motors for a variety of timed pulses. These enabled variables such as pen-lift and rotation, forward/reverse pen action, light drawing, sine waves, turntable and drum machines, and versions of X:Y plotters. [ABSTRACT FROM AUTHOR]

In this paper, a new segmental blank holder technique was developed. The blank holder force (BHF) was applied on sheet metal independently and effectively by the binder which was divided into double rings. The principle of holding was derivatized by theoretical formulas, thereby proving that the BHF distribution applied by the new binder is more reasonable. Furthermore, combined with numerical simulation, it can be found that the wrinkling was better suppressed. Finally, the effectiveness of the segmental blank holder technique was proven by a series of experiments with AA5754 plate. It is verified that the flange wrinkling was demonstrated to be more eliminated than that using the single blank holder. Compared with 1:2 and 2:1, when the distribution ratio between the outer ring and the inner ring is 1:2 (the applied BHF is 6.9 kN), there has a better-forming quality. [ABSTRACT FROM AUTHOR]

The risk of injury in archery is supposedly low. However, relations between pain, shooting phases and types of bow have not been studied. Understanding the biomechanical mechanisms of archery-related injuries. Online survey for archers from all types of bow. Variables were analyzed using contingency tables and chi-squared tests. 396 surveys were completed. 36.9% of the archers had practiced archery for more than 10 years, 23.3% between 5 and 10 years. Olympic recurve bow was the most commonly used (38.2%), followed by traditional (23.3%) and compound (22.0%). 57.3% of the archers suffered some kind of injury during archery practice. Drawing shoulder (28.2%) and neck/back injuries (19.9%) were the most prevalent, preventing 50.3% of those who suffered them from continuing archery practice. There was a moderate association between drawing arm injuries and symptomatology in the drawing phase, especially in the shoulder region (0.55), elbow (0.20), and hand (0.13), and to a lesser extent in the neck/back (0.28). Our results show that injury chronicity is frequent on archery. Correlations between types of bow, phases of the shoot and areas of pain could be a starting point for future studies on the repercussions of different types of injuries in archery practice. [ABSTRACT FROM AUTHOR]

Russula is the largest genus in the Russulales and is widespread throughout the world. Almost all Russula species are known to be ectomycorrhizal with high ecological and edible values, and some are lethal poisonous. In this study, four new species belonging to the subgenus Russula crown clade are identified based on morphological and phylogenetic evidence from the Xizang Autonomous Region and other provinces of China. Morphologically, Russula paragraveolens (sect. Polychromae, subsect. Xerampelinae) is mainly characterised by a cherry red to blood red pileus centre, a reddish orange pileus margin; R. pseudograveolens (sect. Polychromae, subsect. Xerampelinae) is characterised by a violet brown to brownish red pileus centre, a pale red to pastel red pileus margin and short basidia; R. shigatseensis (sect. Flavisiccantes, subsect. Lepidinae) is characterised by a brownish orange to madder red pileus centre, pinkish red pileus margin, and having lateral branches or branches of hyphal terminations in pileipellis; R. yadongensis (sect. Tenellae, subsect. Laricinae) is characterised by a dark purplish red pileus centre with brownish purple tints and having isolated to clustered spines of spore ornamentations. Their distinct taxonomic status is confirmed by the positions of the four new species in both the ITS and 4-locus (nucLSU, mtSSU, rpb2, tef1) phylogenetic trees. [ABSTRACT FROM AUTHOR]

Introduction: Feedback is crucial to promote learning and improve performance. However, we lack a nuanced understanding of how medical teachers reflect on and internalise (or not) student feedback (SF). This study aims to fill this gap by exploring how teachers make sense of SF to improve their performance and nurture their personal and professional development. Methods: In this cross‐sectional qualitative study based on a constructivist paradigm, 14 medical teachers individually drew a Rich Picture (RP) of a feedback experience in which they received informal or formal feedback from students, resulting in a personal or professional change. After the drawing, we interviewed the participants to deepen our understanding of teachers' experiences. We analysed the drawings and interview transcripts using an iterative process of thematic analysis. Results: SF that culminated in personal or professional change is a highly emotional experience for teachers, often with long‐lasting consequences. It may threaten or reassure their self‐concept and professional identity, generating feedback avoidance or feedback‐seeking behaviour. SF is particularly powerful in transforming teaching practices when teachers feel connected to students through an honest and constructive relationship. Remarkably, some teachers intentionally build relationships with certain (selected) students to get 'qualified' feedback. SF acceptance also increases when teachers are open to receiving feedback and there is an institutional culture that values feedback. Finally, medical teachers believe that formal (planned) feedback is relevant to improve the curriculum, while informal (spontaneous) feedback is important for promoting teachers' personal and professional development. Discussion: SF has the potential to become a transformative learning experience for teachers. The student–teacher relationship and teachers' emotional reactions affect the way teachers make sense of and internalise SF and enact behavioural change. Understanding the complexity surrounding SF is vital for supporting teachers in seizing opportunities for growth and in nurturing a meaningful relationship with the act of teaching. Receiving students' feedback is detailed to be an emotional process that happens in the context of a relationship and can nurture teachers' professional and personal development. [ABSTRACT FROM AUTHOR]

This paper discusses the role and agency of the architecture exhibition as a mediated space of discursive spatial narratives. The presented curatorial approach draws on the exhibition entitled Past-forward: Stavros Economou Unarchived (2021) to reflect on the development of a multimedia-enabled reading of the architectural archive. Stavros Economou is one of the most important representatives of modern architecture in Cyprus, yet his work is underdiscussed and under-published. The architectural archive, unlike other collections, consists of representations (such as drawings, models, photographs) of artefacts (buildings) that communicate design processes and final un/built proposals. The curatorial practice focused on a twofold challenge: on one hand, it explored the role architectural representation can play in the production of the multiple and complex (hi)stories of modern buildings, and secondly, it considered ways in which an architecture exhibition can connect with the host city and its local population by addressing contemporary urgencies of spatial inquiry. [ABSTRACT FROM AUTHOR]

Body dysmorphic disorder (BDD) is a mental health condition characterised by distress associated with perceived defects in one's physical appearance. Such defects are likely to be very slight or invisible to external observers, making it difficult for people with BDD to convey what they see. Participants created artwork representing how they cope with BDD, then completed a follow-up interview to discuss their artwork. Framework for the Analysis of Drawings was used together with Interpretative Phenomenological Analysis. Three overarching themes were generated from the analysis, centred around BDD's fusion with one's lifeworld, perceptual detachment, and fragmented selves. We suggest incorporating artwork creation in BDD research and clinical settings may elucidate understanding of "hidden" experiences. Clinicians may find it helpful to reflect on how the distinctive BDD "way of seeing" can infuse not just specific perceptions of the body, but also the person's wider relationship to the world. [ABSTRACT FROM AUTHOR]

In this paper, we analyse a group of 6 and 7 year olds' interactions during a literacy event. We explore the complexities of their meaning-making following a read aloud of Where the Wild Things Are (Sendak 1963). Our focus is on discourses of gender/sex/uality, a term that acknowledges the complex relationship between gender, sex and sexuality, and how these discourses are enacted. Our guiding question was: How did discourses of gender/sex/uality circulate in this group of young children's multimodal and playful responses to a literacy event? By considering the relationship between reader response, play and gender/sex/uality, we gained insight into how children's responses to texts are connected to their own identities and lived experiences. We used critical multimodal discourse analysis to understand the children's meaning-making processes. This revealed how the children were drawing from varying scripts to inform their play and creative processes. The children referenced gender/sex/uality to collaborate, to compete and to seek inclusion or status in the group. We discuss four children who drove this collective dialogue and who guided the group's interactions. Another child's responses pushed against and evolved in tandem with the emerging consensus. This study deepened and expanded our consciousness of children's enactments of gender/sex/uality and how such enactments reinforced heteronormativity. The children's artefacts, actions and talk are testimony of dominant discourses that guided and ultimately led them to adopt storylines that aligned with heteronormative scripts. Our analysis of how the children's responses unfolded revealed how power asymmetries were reinforced and hegemonic ideologies persisted. Understanding the influences of social norms during interactive literacy events may help educators create opportunities for all learners to write themselves into these events and classroom interactions more broadly. [ABSTRACT FROM AUTHOR]

Homogeneous polynomial functions have the potential to provide a general modeling framework for yield surfaces in metal plasticity. They incorporate as particular cases many of the previously proposed yield functions and their fitting capabilities allow for capturing a wide range of yield surface shapes. And yet, there are still two unsolved problems which turn into major obstacles when it comes to actual implementations in both academic and industrial environments: The lack of a general optimization algorithm for the calibration of their parameters and the lack of an efficient computational scheme for their value, gradient and hessian. The difficulty of the first problem is two-fold, necessitating an adequate specification of the experimental input data set and satisfaction of the convexity constraint. The second problem is specific to all high degree polynomials and is comprised of issues such as numerical stability, precision and implementation efficiency. We present practical solutions to both problems: An optimization algorithm that reduces to solving a sequence of quadratic problems and a double Horner evaluation scheme that is optimal (featuring the least number of multiplications). The resulting modeling framework can account for arbitrary input data, experimental or from crystal plasticity predictions. As illustration we show new results regarding the relationship between generalized r-values and the earing profile of deep-drawn cylindrical cups. Practicality is demonstrated by the high level of automation of the entire workflow, from material parameters calibration to finite element simulations, and supporting code (Python scripts and constitutive subroutine) made available at https://github.com/stefanSCS/PolyN. [ABSTRACT FROM AUTHOR]

Increased inequalities around the globe have led social researchers to invent innovative methodologies to study how people subjectively perceive inequality and imagine society. This article presents the development of an arts-informed method, 'drawing of society', applied to a multi-sited ethnography of everyday inequalities in two major post-industrial cities of Russia. It contributes to the debate on lay perceptions of social structure by looking at moral and symbolic signifiers of inequality. Building on multi-sensory data, I argue that workers and professionals tend to imagine Russian society as divided between a small group of the rich and a large group of the poor and as consisting of social classes. Ordinary people self-identify with the poor and perceive their position as being at the bottom of the social hierarchy. Depending on their lived experiences, research participants express their sense of inequality through the narrative strategies of compliance, inversion and subversion of power hierarchies. [ABSTRACT FROM AUTHOR]

Effective visualization of small molecules is paramount in conveying concepts and results in cheminformatics. Scalable vector graphics (SVG) are preferred for creating such visualizations, as SVGs can be easily altered in post-production and exported to other formats. A wide spectrum of software applications already exist that can visualize molecules, and customize these visualizations, in many ways. However, software packages that can output projected 3D models onto a 2D canvas directly as SVG, while being programmatically accessible from Python, are lacking. Here, we introduce CineMol, which can draw vectorized approximations of three-dimensional small molecule models in seconds, without triangulation or ray tracing, resulting in files of around 50–300 kilobytes per molecule model for compounds with up to 45 heavy atoms. The SVGs outputted by CineMol can be readily modified in popular vector graphics editing software applications. CineMol is written in Python and can be incorporated into any existing Python cheminformatics workflow, as it only depends on native Python libraries. CineMol also provides programmatic access to all its internal states, allowing for per-atom and per-bond-based customization. CineMol’s capacity to programmatically create molecular visualizations suitable for post-production offers researchers and scientists a powerful tool for enhancing the clarity and visual impact of their scientific presentations and publications in cheminformatics, metabolomics, and related scientific disciplines. Scientific contribution We introduce CineMol, a Python-based tool that provides a valuable solution for cheminformatics researchers by enabling the direct generation of high-quality approximations of two-dimensional SVG visualizations from three-dimensional small molecule models, all within a programmable Python framework. CineMol offers a unique combination of speed, efficiency, and accessibility, making it an indispensable tool for researchers in cheminformatics, especially when working with SVG visualizations. [ABSTRACT FROM AUTHOR]

Medical containers that sterilize surgical instruments are constantly needed in the healthcare industry. In line with this need, improvements in the fabrication of medical containers are important. Determining the design factors of medical containers fabricated by deep drawing saves time and cost. This study determined, the design factors of square medical containers and experimentally verified the deep drawing process modeled in Abaqus/Explicit finite element (FE) software. Taguchi statistical method was used to reduce the number of experiments. Blank holder force (BHF), punch radius (RP), die radius (RD), coefficient of friction between die and blank (µDB), coefficient of friction between punch and blank (µPB), coefficient of friction between holder and blank (µHB) as variable factors while selecting thickness reduction (TR) and maximum punch force (PF) were selected as output parameters. The effect of variable factors on the output parameters was determined by ANOVA analysis. As a result of the examinations, it was deter-mined that TR and PF increased as BHF, µDB and µHB values increased, whereas they decreased as RP and RD increased. On the other hand, it was determined that TR decreased and PF increased as µPB increased. In addition, the corners of the sheets were chamfered in different sizes to prevent the formation of ears in the containers. Finally, the appropriate chamfer size was determined by examining the sheet thicknesses. [ABSTRACT FROM AUTHOR]

A graph is 1-planar if it can be drawn in the plane such that each edge is crossed at most once. It is well-known that each 1-planar graph has its minimum degree at most 7. Recently, Biedl (2021) showed that any 1-planar graph with minimum degree 7 has at least 24 vertices. In this paper, we characterize 1-planar graphs with 24 vertices and minimum degree 7. Furthermore, we prove that any 1-planar graph of odd order with minimum degree 7 has at least 29 vertices, and the lower bound is tight. In addition, we also characterize 5-connected 7-regular maximal 1-plane graphs. [ABSTRACT FROM AUTHOR]

Despite the wealth of preserved information, research on the domestic architecture of Seville has been limited. Much of this historical data is available in survey books that were formally compiled in Seville from the Modern Age onwards. These books had detailed descriptions and sometimes illustrations provided by surveyors who were commissioned by owners or tenants. The intention of this study is to illustrate that the information contained in building surveys goes beyond simple descriptions or measurements often accompanied by drawings. They are a comprehensive account that, even centuries later, help reconstruct the architecture, material culture and everyday life that no longer exist. Our research contributes to the understanding of the domestic architectural history of Seville by focusing on one specific survey (a collection of drawings and a written description) extracted from the Hospital de las Cinco Llagas Collection, which is found in the Seville Provincial Council Archive. At least one of the drawings and the written survey can be attributed to the Alarife (architect or master builder) Juan de Legarra, who signed them in 1637. This research explores the architectural development of the city, offering fresh insights into its architecture, heritage, and history. It supplements existing historical, visual, and written records derived from prior studies with a meticulously curated bibliography. Additionally, it uses visualisation techniques to reconstruct buildings, augmenting the research. This endeavour has yielded anticipated benefits, particularly in facilitating visual analysis. The surveys have proven to be invaluable for historical inquiry, yielding unexpected insights through the thorough analysis of both written and graphic sources which serve as a basis for hypothetical construction plans due to their detailed descriptions. Furthermore, this study has contributed to enriching both historical and architectural terminology. The incorporation of digital technologies into this architectural context allows us to expand our knowledge through the exhaustive compilation of building records. It also facilitates in-depth analysis of architecture, which could result in an up-to-date architectural catalogue that would stimulate interest in preserving a legacy that, until recently, was at risk of being lost. [ABSTRACT FROM AUTHOR]

The unspecific peroxygenase (UPO) from Cyclocybe aegerita (AaeUPO) can selectively oxidize C–H bonds using hydrogen peroxide as an oxygen donor without cofactors, which has drawn significant industrial attention. Many studies have made efforts to enhance the overall activity of AaeUPO expressed in Komagataella phaffii by employing strategies such as enzyme-directed evolution, utilizing appropriate promoters, and screening secretion peptides. Building upon these previous studies, the objective of this study was to further enhance the expression of a mutant of AaeUPO with improved activity (PaDa-I) by increasing the gene copy number, co-expressing chaperones, and optimizing culture conditions. Our results demonstrated that a strain carrying approximately three copies of expression cassettes and co-expressing the protein disulfide isomerase showed an approximately 10.7-fold increase in volumetric enzyme activity, using the 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) as the substrate. After optimizing the culture conditions, the volumetric enzyme activity of this strain further increased by approximately 48.7%, reaching 117.3 U/mL. Additionally, the purified catalytic domain of PaDa-I displayed regioselective hydroxylation of R-2-phenoxypropionic acid. The results of this study may facilitate the industrial application of UPOs. Key points: • The secretion of the catalytic domain of PaDa-I can be significantly enhanced through increasing gene copy numbers and co-expressing of protein disulfide isomerase. • After optimizing the culture conditions, the volumetric enzyme activity can reach 117.3 U/mL, using the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) as the substrate. • The R-2-phenoxypropionic acid can undergo the specific hydroxylation reaction catalyzed by catalytic domain of PaDa-I, resulting in the formation of R-2-(4-hydroxyphenoxy)propionic acid. [ABSTRACT FROM AUTHOR]

Objective: To observe the effect of personalized airway clearance therapy on extubation of patients with tracheotomy in intensive rehabilitation care unit. Method: Totally 62 patients who met the inclusion criteria were divided into the control group and experimental group, with 31 patients in each group. During the experimental period, one patient in the control group and experimental group dropped off. The control group was given the posture drainage combined with back tapping on the basis of routine rehabilitation, while the experimental group was given the personalized airway clearance therapy (including cough training, active cycles of breathing techriques, posture drainage, etc.) on the basis of routine rehabilitation. The observation period was 6 weeks, and the sputum volume, extubation time, extubation success rate and clinical pulmonary infection score were compared between the two groups. Result: After 6 weeks of training, the average sputum volume in the experimental group was significantly higher than that in the control group (P<0.05). At the first week of training, there was no significant difference in the average daily sputum volume between the two groups (P>0.05), but at the second, fourth and sixth weeks, the average daily sputum volume in the experimental group was significantly lower than that in the control group (P<0.05). Before training, there was no statistically significant difference in CPIS scores between the two groups (P>0.05), but at the first, third and sixth weeks, CPIS scores in the experimental group were significantly lower than that in the control group (P<0.05). The results of repeated measure ANOVA showed that the time effect, inter- group effect and interaction effect of daily expectoration volume and CPIS score in the two groups were statistically significant (P<0.05). The extubation time in the experimental group was significantly shorter than that in the control group (P<0.05), and the success rate of extubation in the experimental group was 93.3%, which was significantly higher than 70.0% in the control group (P<0.05). Conclusion: Personalized airway clearance technology can improve the pulmonary infection of patients with tracheotomy in ICU more effectively, shorten the time of tracheal tube removal, and improve the success rate of extubation. [ABSTRACT FROM AUTHOR]

The study investigates the deep drawing process for bimetallic sheets formed by bonding dissimilar metals (AA1100 aluminium alloy and C36000 brass) with epoxy-based adhesive. Experimental exploration of process parameters, including blank diameter, stacking sequence, lubrication, and strain rate, was conducted to analyse their impact on load–displacement behaviour and thickness strain distribution. Additionally, the study assessed fracture susceptibility, material flow characteristics (tearing and wrinkling), and the requisite drawing force for the bonded specimens. Results indicate enhanced formability and mechanical properties in bonded sheets compared to individual metal sheets, demonstrating the potential advantages of this approach. The bonded sheets demonstrated improved formability and mechanical properties compared to individual metals. Notably, the maximum drawing force for the bonded sheet (170 mm diameter) significantly increased to 24.2 kN, surpassing individual sheets by 69.85% for AA1100 and 40.54% for C36000. The analysis identified a vulnerable region (12–15 mm from the centre) under maximum risk of failure and consistent deformation patterns in samples with varying diameters and lubrication, providing valuable insights into the behaviour of bonded bimetallic sheets in deep drawing. [ABSTRACT FROM AUTHOR]

This article uses reflective drawing to explore representations of multilingualism by Anglophone migrants in Luxembourg. Analysing twelve interviews in which participants drew and described their language experiences, we examine the language ideologies Anglophone migrants adopt in response to the ideologies of English they encounter. Participants adopt various ideologies, sometimes aligning with the ideology of global English, sometimes with counter-ideologies of resistance to it, and sometimes a mix of the two. Visual features indexing affective states include colour, gesture, facial expression, and composition. Monolingual cringe – expressed as shame, embarrassment and being 'bad at languages' – performs several functions for the participants. Sometimes it serves as an affective disclaimer, allowing them to lean on their privilege in a more socially acceptable way. Sometimes it appears to express genuine distress, in the form of searing linguistic insecurity. Sometimes it performs a distancing function, enabling them to oppose themselves to the stereotype of the monolingual English speaker. The affective intensity of the drawings suggests the ideology of global English does have costs for Anglophone migrants. Fundamentally, though, monolingual cringe reinforces privilege, allowing participants to apologise for their monolingualism even as they continue to benefit from it. [ABSTRACT FROM AUTHOR]

Despite insufficient attention, children have the right to a quality educational environment that respects their need for privacy and is designed with their participation. The study aims to seek how to design better private space in kindergarten with the help of the children's perspective. Spatial typologies created by scrutinizing kindergarten environments have been submitted to children's evaluation. In the participatory study conducted in one private kindergarten in Turkey, 20 children aged 5 to 6 have conveyed their thoughts through drawings, group and individual interviews. Data analysis shows that private spaces that have escape holes, allow personal choices, formable, relate its form to confidence and imagination, and provide comfort, support children's privacy needs. Design proposals for spatial typologies have been developed to contribute to academic and practical fields by discussing the impact of this issue on child development. [ABSTRACT FROM AUTHOR]

We compared the effectiveness of different encoding techniques across the adult age range. Three hundred participants: 100 younger, 100 middle-aged, and 100 older adults, were asked to encode a set of visually presented concrete and abstract words. Participants were shown target words one at a time, along with prompts (randomly and intermixed, within-subject) to either silently read, read aloud, write, or draw a picture of the target, for a duration of 10-seconds each. On a later free recall test, participants were given 2-minutes to type all the words they could remember from the encoding phase. Across age groups, we showed that drawing, writing, and reading aloud as encoding techniques yielded better memory than silently reading words, with drawing leading to the largest boost. While memory performance did decrease as age increased, it interacted with the encoding technique. Of note, there were no differences in memory performance in middle-aged compared to young adults. Importantly, age differences in memory emerged only when drawing was used as the encoding strategy, in line with previously reported age-related deficits in generating imagery, or integrating it with motoric processes. Despite this, concrete relative to abstract words that were drawn or written during encoding were better retained, regardless of age, suggesting these techniques facilitate formation of age-invariant visuo-spatial representations. Our findings suggest that whether age differences in memory emerge depends on the strategy used at encoding, and the type of information being encoded. [ABSTRACT FROM AUTHOR]

Drawing is an effective method to understand attitudes and beliefs on aging, but the subject matter without an explanation can be misinterpreted. We explored college students' drawings and written descriptions of the life course (N = 567). Participants drew, on average, five life phases. Most drawings included human figures, and most were alone in each life phase. Fifteen percent of the drawings were non-human representations. Some characteristics (e.g. hair changes [58%]) and contexts (e.g. birth [91%]) were present in both the drawings and descriptions. Others were only present in the drawings (e.g. alone throughout the life course [79%]) or mainly described (e.g. school/graduation [92%]). Findings highlight participants thought some associations with aging needed explanation while others warranted no explanation, thus intrinsic to aging. Our study reveals the importance of examining both drawn and written content together when using drawing as a method in aging research. [ABSTRACT FROM AUTHOR]

Crambe (Crambe abyssinica Hochst.) is an oilseed crop domesticated in the Mediterranean region that is becoming increasingly important worldwide. Crambe is now considered as an alternative to bioenergy crops and oleochemicals, because of its ability to acclimatise under inhospitable conditions. Despite the interest in the agronomic characteristics and applications of this crop, research on crambe is still scarce and has focused only on production, taking into account the phenological stages of this species. Therefore, a single criterion for quantifying the phenology of the species can be a useful tool for both researchers and growers. In the present study, a proposed scale of the phenological growth stages of crambe was applied according to the BBCH (Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie) coding system. The phenological stages were described using the one‐ and two‐digit decimal coding of the BBCH system and corresponded to stage 0: germination; stage 1: leaf development; stage 2: lateral sprout formation; stage 5: inflorescence emergence; stage 6: flowering; stage 8: fruit ripening and stage 9: senescence. Growth stages 3 and 4 (main stem elongation and development of collectable vegetative parts, respectively) have been omitted. Figures have been included to illustrate the main stages, and plant growth has been represented by a technical botanical illustration. The BBCH system has been effective in providing phenological data on crambe, allowing for better growing management of the crop under varying climatic conditions, as well as contributing to the standardisation of research methods on the species. [ABSTRACT FROM AUTHOR]

Annealed ASTM A510/A853 hypoeutectoid steel wire is a very useful and versatile material that finds its applications in the construction industry; this is mainly due to its mechanical properties, since this product can reach high ductility. In order to achieve the sought quality and homogeneity in this material, it is necessary to have a suitable control during operation. Important operational control parameters in batch annealing are: heating and cooling rates, holding temperature and cycle time. These parameters have a direct effect on the process, and it is essential to elucidate the way they impact in the final product. This work concerns the development of a mathematical model targeted at the prediction of mechanical properties in terms of the operational parameters, in the outer spirals of American Iron and Steel Institute/Society of Automotive Engineers (AISI/SAE) steel drawn wire coils after they have been subjected to batch annealing. The model addresses non-isothermically the involved phenomena that take place during the annealing process: recovery, recrystallization, and grain growth below and above Ac1. It predicts grain size, tensile strength, and yield strength values with very good accuracy. [ABSTRACT FROM AUTHOR]

The Shahyad monument, which has served as a symbol of Tehran—and by extension of modern Iran—since its inauguration in 1971, stands at the center of a huge open space that has been successively appropriated by Pahlavis, revolutionaries, and the Islamic Republic and has been persistently mediated and remediated in its relatively short life. This contested urban monument embodies the complex story of a space in which multiple sets of illusions—a Pahlavi fantasy as well as a revolutionary dream—are undone. In this paper, the space's story is traced through varied types of media and archival material, including plans and architectural drawings, official reports and correspondences, and especially through journalistic photographs of the Square in 1979 and its representation in various media afterward. I examine shifts in this specific space at particular and historically grounded conjunctures, honing in not just on the site's meta-narratives and its grand spectacular events, but also on the decentralized and ignored narratives and histories, demonstrating how they have reworked the meaning of this monumental space, turning it into a stage for contrarian politics. Focusing on the monument during the 1978-79 Revolution, I argue that the transformations in the meaning and perception of the site at that particular moment are indeed forces of a fundamental remaking, in that they open up the monumental site to further appropriations, as we are currently witnessing. [ABSTRACT FROM AUTHOR]

Maps constructed in Euclidean space are commonly used to visually present information about the real world. However, their creation is resource intensive, be it financial, technical, human, or time-consuming, which can limit their timeliness and detail. A simpler form of visualization of data about the real world is represented by sketch maps, which mainly capture the topology and mutual features' spatial location. By default, they are drawn by hand. This presupposes that the creator has a good knowledge of the depicted territory, can create a cognitive map, and is skilled in transforming it into a graphical form. Sketch maps can be detailed and up-to-date if these prerequisites are met. Our question was whether it is possible to meet these assumptions in another way: acquire knowledge of the territory by processing narratives related to the area of interest, create a suitable computer representation for further processing, and automatically generate the resulting sketch map. This article presents the last step -- creating a sketch map based on spatial data acquired from narratives. The results show that even without metric data, it is possible to automatically generate a sketch map visually close to the actual situation. [ABSTRACT FROM AUTHOR]

This article presents an investigation into a historical invention consisting of a stationary steam engine designed by Henry Muncaster: a two-cylinder entablature steam engine with parallel motion crosshead. The present interdisciplinary research, based on the theoretical and methodological concepts of engineering drawing and computer-aided design, has allowed us to understand the operation of this invention from the 3D CAD model of the invention obtained thanks to the original drawings published in the magazine Model Engineer in 1957 and reproduced in 2017, since there is no descriptive information related to the invention. However, there have been drawbacks in the geometric modeling process since the dimensions of some components did not exist and in other cases they were erroneous. For this reason, dimensional, geometric and movement constraints (degrees of freedom) had to be applied so that said 3D CAD model would be coherent and functional, and an interference analysis also had to be performed. Finally, the existing symmetry in the arrangement of the cylinders and the crosshead has been discovered, it being essential to guarantee that the forces and movements are uniform on both sides of the steam engine, and allowing the work to be carried out in a more balanced manner by reducing vibrations and improving the overall efficiency of the invention. [ABSTRACT FROM AUTHOR]

This study investigated the effects of two types of oral explanations (ie, self‐explanation vs. instructional explanation) and drawing activity (no drawing vs. drawing) on video learning outcomes. These outcomes were measured by visual attention to the video (indexed by fixation time on text and diagram areas), explanation quality (indexed by personal references, concepts, and elaborations), drawing quality, behaviour patterns and overall learning performance gain. A total of 116 undergraduate and graduate students watched a 4‐min video on the human body's respiratory system. They were randomly assigned to one of four conditions (explanation generation: self‐explanation vs. instructional explanation × drawing activity: no drawing vs. drawing). Results indicated that without a drawing requirement, students in the self‐explanation condition displayed fewer personal references and exhibited a lower learning performance gain than those in the instructional explanation condition. Conversely, when drawing was required, self‐explanation students demonstrated higher drawing quality and better learning performance gain. Additionally, students in the drawing condition directed more attention to the diagram area than those in the no drawing condition. These findings suggest that in video learning (1) educators should encourage students to produce oral instructional explanations and (2) if the goal is for students to generate self‐explanations, they should also be prompted to draw to bolster their self‐explanation efforts. [ABSTRACT FROM AUTHOR]

In this paper, we report on fabricating optical fibers with a controlled process of crystallization core during the drawing process. The research and synthesis of the core material of silica-germanium-antimony oxide glass were discussed. We also investigated the optical and luminescence properties were in relation to concentrating Eu 2 O 3 and P 2 O 5. Based on this investigation, we selected the most promising material for optical fiber core. In the next step, we drew optical fibers using a well-known rod-in-tube method. After drawing, we examine the optical fibers for luminescence shape changes. We observed a promising similarity between optical fibers and heat-treated samples with confirmed nanocrystals. Finally, XRD and TEM measurements confirm EuPO 4 nanocrystals at the core of the optical fiber. Highlighting the successful control of crystallization in the one-step method used to draw optical fibers. [ABSTRACT FROM AUTHOR]

Recent years have seen increasing experimentation with drawing as a first-hand method for observation, reflection, and analysis in critical geographical research. Interestingly, much of this work comes from scholars who in various ways are working from the margins, and use drawing in part to interrogate their own positionalities within the research environment. These experiments to date remain somewhat tentative and underdeveloped as methodological propositions. This article therefore reviews recent geographical use of observational drawing by situating it within a broader argument for 'vulnerable' methodologies in geographical research, to both amplify current innovative advances and offer direction to their future elaboration. [ABSTRACT FROM AUTHOR]

This study demonstrated the reactive flash sintering (RFS) for two powder mixtures: TiN-ZrN (both conducting) and AlN-TiN (TiN conducting but AlN insulating), targeting ternary metal nitrides (TMN) of Ti 0.5 Zr 0.5 N and Ti 0.5 Al 0.5 N, respectively. A constant volage and pressure (e.g., 8 V DC, ∼15 MPa) at room temperature triggered the flash (current density up to 27 A/mm2) without pre-heating, and the entire RFS process finished in a few minutes. For TiZrN, the flash was instantaneous whereas for TiAlN, there was a long incubation before the flash followed by a quick and dramatic flash. Both conventional ex situ XRD and in situ synchrotron study had been carried out. They showed a uniform Ti 0.57 Zr 0.43 N solution formed in RFS and persisted upon cooling, while (Ti, Al) N solid solution formed at high temperature was not stable and likely went through a very quick phase separation in the cooling process. The final products from RFS had been characterized using SEM/EDS for microstructure. Both TiZrN and TiAlN were dense. Distribution of Ti, Zr, and N was uniform for TiZrN; for TiAlN, Ti and N distribution was uniform, while association of Al with oxygen was observed. TGA-DSC revealed the onset oxidation temperature for TiZrN was comparable to TiN and ZrN, while it was higher by ∼200 °C for TiAlN, likely due to the formation of Al 2 O 3. In terms of mechanical properties such as hardness or fracture toughness, forming a single-phase solid solution (like TiZrN) does not offer obvious benefits. while large grain size from RFS seemed to be unfavorable. Future optimization of RFS condition and in-depth study by both experiments and simulation are needed to fully understand the composition-processing-structure-property relationships for such TMN from the reactive flash sintering process. [ABSTRACT FROM AUTHOR]

The thermal-mechanical response of the anode-supported planar solid oxide fuel cell (SOFC) during sintering is important for its manufacturing and in-service operation. The integrated micro/nano-indentation and finite element (FE) modeling method was used to characterize the Young's modulus, yield stress and creeping for the NiO-3YSZ anode and 8YSZ electrolyte at room temperature. Based on the real-time full-field deformation of the half-cell SOFC which was measured using the 3D digital image correlation (DIC), the FE simulation was used to estimate the stress response in a manner of sensitivity study. It shows that the half-cell SOFC warps towards the anode substrate during heating and points in the opposite direction during cooling. The warping deformation of FE simulation matches well with the DIC measurement. In addition, the maximum tensile stress in the electrolyte coat of the half-cell SOFC plate is about 207 MPa if assuming temperature-independence of creeping for the SOFC materials. • Real-time full-field displacement of the half-cell SOFC during sintering is measured. • The mechanical properties of the NiO-YSZ and 8YSZ materials are characterized. • The relation of creeping with the stress state of the FE analysis is validated experimentally. • The difference of creeping at 1200 °C for NiO-YSZ and 8YSZ is characterized. • The stress response during sintering and cooling is estimated, respectively. [ABSTRACT FROM AUTHOR]

In this paper, the damage progression and fracture behavior in notched cross-ply SiC/SiC composites were investigated using the in situ digital image correlation (DIC) and acoustic emission (AE) techniques. Under tensile loading, the mechanical properties of composite's elastic modulus, proportional limit stress (PLS), ultimate tensile strength (UTS), and fracture strain were obtained for non-notched, single-hole, double-holes, and four-holes samples. Based on the analysis of composite's tangent modulus, the nonlinear tensile stress-strain curves were divided into three main domains, relating with internal multiple damage mechanisms observed using the in situ DIC and AE. Effects of the number and location of the circular holes on the full-filed composite's damage and strain evolution, AE energy and ring-down count were investigated. After tensile fracture, the composite's macro fracture morphology and micro damage mechanisms were observed under the scanning electronic microscopy (SEM). Numerical modeling of tensile damage and fracture process of different notched samples were conducted using the extend finite element method (XFEM). Relationships between the notch types, tensile mechanical properties, macro strain evolution, and micro damage mechanisms were established. [ABSTRACT FROM AUTHOR]

This essay theorizes utopianism as distinct from radical or revolutionary action and so capable of instantiating a desire for a world so different it cannot be represented. Asking whether "failure" is in fact a productive condition of possibility for utopianism, the essay considers a number of theoretical interventions including those of Fredric Jameson and Kathi Weeks. Drawing out the benefits and limits of these perspectives, the essay articulates utopianism's features and offers the demand for prison abolition as an example. Not only does this demand confront the impossibility of a different world, but it draws on the potentiality of past political agency and so posits what occupying the "no place" of utopia can be for those who have historically been denied the very temporalities upon which utopia has traditionally relied. [ABSTRACT FROM AUTHOR]

This paper authentically represents the voices of non-verbal children with cerebral palsy using a case study design. Policy suggests that children should have the right to play and leisure opportunities, however non-verbal children with cerebral palsy have fewer choices. Additionally, children with communication, learning and mobility limitations are usually excluded from research. The aim of this research was to capture the voices of non-verbal children by exploring their well-being impact in terms of their experiences and choices about their level of participation in recreational activities. A qualitative case series study included interviews, observations, photographs and diaries. Where possible, the diaries were completed by both caregivers and children. Data were analysed thematically, and the lens of positioning theory applied. Seven children aged nine to sixteen years participated. The findings showed how equipment, people and environments enabled or hindered the children's participation. The children also advocated as champions for their own well-being. Positioning theory was applied across the data and was adapted offering a way to better understand the children's well-being responses. The findings demonstrate how these children were able to self-advocate, demonstrating their well-being by their intentional behaviours from their level of participation in a recreational activity. The voices of non-ambulant and non-verbal children are underrepresented in the literature. This study offers an innovative approach to highlight their voices using visual data. The images project the narrative about their choices for participation in recreational activities. The proposed kaleidoscope of well-being offers a way to demonstrate the fluctuations in their emotional responses from their participation. Choices for participation in recreational activities remains limited for non-ambulant and non-verbal children with cerebral palsy. Designers and policy makers should consider how equipment and environments can be adapted or created to increase the choices for non-ambulant and non-verbal children with cerebral palsy. Practitioners in health and social care should consider how to listen to the voices of non-verbal and non-ambulant children with cerebral palsy and their parents/guardians and work towards jointly setting participation goals to affirm their strengths. [ABSTRACT FROM AUTHOR]

The apps for drawing are present in our children's life. Nevertheless, little is known about the impact of mobile technology on the freehand drawing educational activity. There are few works which are contextualised within short periods of time, with teachers who are not theirs and, in some cases, outside the children's classroom. In this paper, we are focussed on the use of technology on freehand drawing activity. Thus, we have compared the graphics produced by 4- and 5-year-old children with paper&crayon in comparison with those with tablet-finger. Children made the drawings during a planned free-drawing activity, in their ordinary classrooms, with their teachers and during five sessions. Assessment of drawings has evidenced tablet feasibility for making graphics. Nevertheless, with the passing of time, quality of graphics (tablet-finger vs paper&crayons), are nearly matched, demonstrating the low impact level technology has on this activity. In addition, if drawings are analysed specifically according to ages, results have shown that both groups have to develop adaptation strategies of visual perceptual skills and fine motor skills for the touch screen in order to obtain the same quality in the drawings made on both support types. [ABSTRACT FROM AUTHOR]

A new type of energetic composite with a double-coating structure was constructed by in-situ polymerization of dopamine and water suspension method. Using CL-20 with a particle size of 200–500 nm as the main explosive, the core–shell structured CL-20-p (CL-20@PDA) was prepared via self-polymerization of dopamine on the surface of the CL-20. After that, thermoplastic polyurethane (TPU, Estane5703) was used as the binder, the CL-20-p was coated by water suspension method, and finally CL-20-p/Estane5703 composite was prepared. The structure and properties of the samples were characterized by SEM, AFM, FTIR, XPS, Raman, XRD, DSC and mechanical sensitivity test. The test results show that the CL-20-p is successfully coated by Estane5703, and the coating degree is high. Compared with the CL-20, the crystal phase transition temperature of CL-20/Estane5703 is significantly increased, and the mechanical sensitivity is greatly reduced. The CL-20-p/Estane5703 is superior to CL-20-p and CL-20/Estane5703 in enhanced thermal stability and reduced mechanical sensitivity. [ABSTRACT FROM AUTHOR]

Present work demonstrates the effect of in tandem application of chemo-mechanical methods on physio-chemical and thermo-sensitive properties of HMX. Solvent-antisolvent recrystallization produced γ-polymorph of HMX with mean diameter ~7 μm and ~8 μm when acetone and DMF were used as solvent respectively, whereas with γ-butyrolactone, β-HMX with larger particle size (mean diameter ~24 μm) was produced. Ultrasonication initially (1 h) resulted in increase in particle size but with increase in duration (24 h) particles size decreased to (~4 μm) whereas, ball milling resulted in decrease in average particle size to ~1 μm with β-polymorphic form with reduced impact sensitivity. [ABSTRACT FROM AUTHOR]

We study two well‐known Ramsey‐type problems for (vertex‐)ordered complete graphs. Two independent edges in ordered graphs can be nested, crossing, or separated. Apart from two trivial cases, these relations define six types of subgraphs, depending on which one (or two) of these relations are forbidden. Our first target is to refine a remark by Erdős and Rado that every 2‐coloring of the edges of a complete graph contains a monochromatic spanning tree. We show that forbidding one relation we always have a monochromatic (nonnested, noncrossing, and nonseparated) spanning tree in a 2‐edge‐colored ordered complete graph. On the other hand, if two relations are forbidden, then it is possible that we have monochromatic (nested, separated, and crossing) subtrees of size only ~n∕2 $\unicode{x0007E}n\unicode{x02215}2$ in a 2‐colored ordered complete graph on n $n$ vertices. Some of these results relate to drawings of complete graphs. For instance, the existence of a monochromatic nonnested spanning tree in 2‐colorings of ordered complete graphs verifies a more general conjecture for twisted drawings. Our second subject is to refine the Ramsey number of matchings, that is, pairwise independent edges for ordered complete graphs. Cockayne and Lorimer proved that for given positive integers t,n $t,n$, m=(t−1)(n−1)+2n $m=(t-1)(n-1)+2n$ is the smallest integer with the following property: every t $t$‐coloring of the edges of a complete graph Km ${K}_{m}$ contains a monochromatic matching with n $n$ edges. We conjecture that this result can be strengthened: t $t$‐colored ordered complete graphs on m $m$ vertices contain monochromatic nonnested and also nonseparated matchings with n $n$ edges. We prove this conjecture for some special cases including the following. (i) Every t $t$‐colored ordered complete graph on t+3 $t+3$ vertices contains a monochromatic nonnested matching of size two (n=2 $n=2$ case). We prove it by showing that the chromatic number of the subgraph of the Kneser graph induced by the nonnested 2‐matchings in an ordered complete graph on t+3 $t+3$ vertices is (t+1) $(t+1)$‐chromatic.(ii) Every 2‐colored ordered complete graph on 3n−1 $3n-1$ vertices contains a monochromatic nonseparated matching of size n $n$ (t=2 $t=2$ case). This is the hypergraph analog of a result of Kaiser and Stehlík who proved that the Kneser graph induced by the nonseparated 2‐matchings in an ordered complete graph on t+3 $t+3$ vertices is (t+1) $(t+1)$‐chromatic. For nested, separated, and crossing matchings the situation is different. The smallest m $m$ ensuring a monochromatic matching of size n $n$ in every t $t$‐coloring is 2(t(n−1))+1) $2(t(n-1))+1)$ in the first two cases and one less in the third case. [ABSTRACT FROM AUTHOR]

Fiber-metal laminates (FMLs) are rapidly advancing materials that combine the characteristics of resin-based composites and metals. These properties can be further enhanced by incorporating nanoscale particles, resulting in a variant known as FMLs-Nano. This study explores the mechanical properties of FMLs with the incorporation of Graphene Oxide (GO) and investigates for the first time the influence of GO on bonding strength, aiming to improve the laminate's performance during the forming operation by eliminating delamination defects. The goal is to expand the potential applications of FMLs-Nano and enable the production of intricate components. To evaluate the influence of GO, we conducted tests on several mechanical aspects, including tensile strength, flexural performance, and lap shear strength. These tests involved using different GO fractions in the laminate. Microscopy was employed to examine damage patterns and understand failure behavior. Additionally, deep drawing experiments were performed and compared with conventional FMLs to evaluate the GO influence on delamination failure. The results indicate that FML-GO exhibits superior tensile performance compared to conventional FMLs, with FML-GO tensile strength and Young's modulus improved by 11.7% and 13.5%, respectively. Moreover, flexural and interface shear strength showed remarkable improvements, with an increase of 134% and 150% compared to conventional FMLs. These improvements were verified through mechanical testing and further confirmed by scanning electron microscope observations. Additionally, deep drawing experiments demonstrated significant improvement as delamination of the FML layers was successfully eliminated during the forming process. [ABSTRACT FROM AUTHOR]