77 results on '"Fu, Hao"'
Search Results
2. A Study of Online Purchase Intention Among Gen X in Malaysia
- Author
-
Anushia Chelvarayan, Yeo Sook Fern, Lim Fu Hao, and Hazlaili Hashim
- Subjects
Service (business) ,Product (business) ,Service quality ,business.industry ,media_common.quotation_subject ,Quality (business) ,Customer satisfaction ,The Internet ,Business ,Marketing ,Competitive advantage ,Popularity ,media_common - Abstract
In recent years, changes in the commercial sector, along with the growing popularity of the Internet, have made Malaysian businesses increasingly conscious of the relevance of E-business in establishing a competitive advantage in the worldwide market. As a result, a greater knowledge of the elements that impact online purchase intent might aid in the development of more effective marketing strategies for certain segments. Four variables affecting online purchase intent were chosen for this study: trust, product and service quality, customer satisfaction, and delivery time. Three factors substantially affected online purchase intention, according to 203 Generation X respondents. The only exception was the quality of the product and service. Researchers, online platform developers, financial institutions, marketers, and the government would benefit greatly from the data and information gathered in this study since we will be able to assess and understand the variables that influence Gen X in Malaysia to purchase online.
- Published
- 2021
3. Rockburst prediction model based on comprehensive weight and extension methods and its engineering application
- Author
-
Zhang Xiangyu, Zhao Dukun, J. Wu, Fu Hao, and Lewen Zhang
- Subjects
business.industry ,Computer science ,0211 other engineering and technologies ,Coal mining ,Analytic hierarchy process ,Geology ,02 engineering and technology ,Structural engineering ,010502 geochemistry & geophysics ,Geotechnical Engineering and Engineering Geology ,01 natural sciences ,Visualization ,Software ,Software system ,business ,Rock mass classification ,MATLAB ,computer ,Intensity (heat transfer) ,021101 geological & geomatics engineering ,0105 earth and related environmental sciences ,computer.programming_language - Abstract
In view of the dynamic instability of rock mass in high geostress areas during underground engineering excavation, the comprehensive weight and extension methods are adopted to research the rockburst prediction. Firstly, five main influencing factors including uniaxial compressive strength, stress coefficient, brittleness coefficient, elastic energy index, and integrity of rock mass are used as the evaluation indexes of rockburst prediction according to the conditions required for rockburst occurrence. The assessment index system of rockburst intensity is constituted. Secondly, the analytic hierarchy process (AHP) and variation coefficient methods are used to determine the comprehensive weight of evaluation index, and the rockburst prediction model is established based on the extension evaluation method. Thirdly, the parameter programming and numerical calculation of the proposed prediction model are carried out in the MATLAB software. The user visualization execution window and software system of rockburst prediction model are realized. Finally, the software system is applied to the rockburst prediction in the water diversion tunnels of Jiangbian hydropower station and Jinping secondary hydropower station. The prediction results are compared with the actual situation and other evaluation methods. The results show that (i) the establishment of the user visualization window realizes the visualization and systematization of rockburst prediction model, which improves the data import rate and calculation efficiency. (ii) The prediction results of the proposed software system agree well with the actual situation, and they are more accurate than other evaluation methods. (iii) The proposed software system of rockburst prediction can also be used in coal mine, metro, and other underground projects, which has good engineering application values.
- Published
- 2020
4. A set theory-based model for safety investment and accident control in coal mines
- Author
-
Fu-hao Tang, Hu-gang Li, En Lai, Yu-xuan Shan, and Fu-chuan Jiang
- Subjects
021110 strategic, defence & security studies ,Environmental Engineering ,Index system ,business.industry ,General Chemical Engineering ,0211 other engineering and technologies ,Coal mining ,ComputerApplications_COMPUTERSINOTHERSYSTEMS ,02 engineering and technology ,010501 environmental sciences ,Environmental economics ,complex mixtures ,01 natural sciences ,Automation ,Forecasting theory ,Environmental Chemistry ,Coal ,Business ,Safety, Risk, Reliability and Quality ,health care economics and organizations ,Mechanization ,0105 earth and related environmental sciences - Abstract
Mechanization and automation of the coal industry as well as increasing the government support for safety in coal mines in China resulted in a significant decrease in the death rate per million tons of coal produced. Nonetheless, major accidents still occur. As one of the five factors of safe production, safety investment plays a key role in ensuring the safe production of coal in mining enterprises. Coal mining enterprises can ensure safe production in the mines and maximize profits through optimum safety investment. In this study, safety system engineering principles and subsets in set theory were combined to develop a novel safety investment index system. The safety investment indices were categorized into human, machine, environment, and the intersection of these three indices. The elements in each investment set were examined, and a multivariate model of safety investment and accident control was created using gray forecasting theory. In addition, a case study was conducted to validate the reliability of the model. The results indicated that the proposed model can provide theoretical evidence and guidance for safety investment decision making in coal mining enterprises.
- Published
- 2020
5. Design and Operational Strategy Research for Temperature Control Systems of Isothermal Compressed Air Energy Storage Power Plants
- Author
-
Cui Yan, Jiang Tong, Bin Li, and Fu Hao
- Subjects
Compressed air energy storage ,Temperature control ,Power station ,business.industry ,020209 energy ,02 engineering and technology ,Condensed Matter Physics ,Potential energy ,Automotive engineering ,Energy storage ,Power (physics) ,Hydraulic cylinder ,020303 mechanical engineering & transports ,0203 mechanical engineering ,0202 electrical engineering, electronic engineering, information engineering ,Environmental science ,Electricity ,business - Abstract
Energy storage technology is critical for intelligent power grids. It has great significance for the large-scale integration of new energy sources into the power grid and the transition of the energy structure. Based on the existing technology of isothermal compressed air energy storage, this paper presents a design scheme of isothermal compressed air energy storage power station, which uses liquid to compress air, hydraulic piston to transfer potential energy, hydraulic turbine to generate electricity at constant pressure, and liquid occupancy to store the gas at constant pressure. Then the technical features and control strategies of its internal temperature control subsystem are studied, and the mathematical model is constructed. A hierarchical relay operation is put forward to address the actual construction and operational requirements of compressed air energy storage power plants. Finally, through physical platform experiments and MATLAB simulation, the feasibility of the design is validated.
- Published
- 2019
6. Waveguide-Imprinted Slim Polymer Films: Beam Steering Coatings for Solar Cells
- Author
-
Kalaichelvi Saravanamuttu, Ian D. Hosein, Fu-Hao Chen, Hao Lin, and Saeid Biria
- Subjects
Materials science ,Beam steering ,Physics::Optics ,02 engineering and technology ,7. Clean energy ,01 natural sciences ,law.invention ,010309 optics ,Planar ,law ,0103 physical sciences ,Electrical and Electronic Engineering ,Polymer waveguide ,Nonlinear Sciences::Pattern Formation and Solitons ,Astrophysics::Galaxy Astrophysics ,chemistry.chemical_classification ,business.industry ,digestive, oral, and skin physiology ,Polymer ,021001 nanoscience & nanotechnology ,Ray ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,chemistry ,Polymer coating ,Optoelectronics ,Quantum efficiency ,0210 nano-technology ,business ,Waveguide ,Biotechnology - Abstract
We report that transparent polymer coatings imprinted with tilted planar waveguides significantly reduce optical loss caused by the scattering of incident light by front metal contacts of solar cel...
- Published
- 2019
7. Silver-covered Si Corona-pillar Array Substrate: Fabrication, SERS Characteristic Analysis and Detection of Tumor Marker miRNA-106a
- Author
-
Wang Fu-yan, Zhou Jun, Peng Le, Tong Liying, Liang Zhao-heng, and Fu Hao
- Subjects
Corona (optical phenomenon) ,Radiation ,Materials science ,Fabrication ,business.industry ,Pillar ,Optoelectronics ,Substrate (electronics) ,Condensed Matter Physics ,business ,Electronic, Optical and Magnetic Materials ,Tumor marker - Published
- 2019
8. Localization of Substation Fittings Based on a Stereo Vision Method
- Author
-
Fu Hao, Xin Chen, Tan Chang, and Wang Tao
- Subjects
0209 industrial biotechnology ,business.industry ,Computer science ,Template matching ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,02 engineering and technology ,Human-Computer Interaction ,020901 industrial engineering & automation ,Stereopsis ,Artificial Intelligence ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Computer vision ,Computer Vision and Pattern Recognition ,Artificial intelligence ,business - Abstract
We propose a novel stereo vision method based on a fast template matching strategy to improve localization accuracy and efficiency of substation fittings. First, considering the salient features of the substation fittings that can be recognized easily, the method searches for features that are similar to the ones in the matching template related to the sub-image of the substation fittings from the global image. When the substation fittings are confirmed, the method repeatedly searches for the one of screw holes in the local region of the substation fittings. It then computes the centering coordinates of the template in the source images until the screw holes are matched. The experimental results show that the proposed template matching method increases the accuracy and efficiency of the substation fitting localization from the global to local search area. Correspondingly, the accuracy and efficiency of stereo vision localization of substation fittings is improved.
- Published
- 2018
9. Wafer Defect Classification Based on DCNN Model
- Author
-
Qiliang Ni, Ruojia Xu, Fu Hao, Zhengying Wei, Chen Li, Xu Chen, Yunwei Ding, Pan Tian, Yu Xueru, and Rui Sun
- Subjects
Neutral network ,Computer science ,Semiconductor device fabrication ,business.industry ,Feature extraction ,Stability (learning theory) ,Semiconductor device modeling ,Process (computing) ,Pattern recognition ,Hardware_PERFORMANCEANDRELIABILITY ,Convolution ,Wafer ,Artificial intelligence ,business - Abstract
Wafer defect classification is essential in semiconductor manufacturing for fast response of equipment and process stability monitoring, it is also critical for product yield management. Manual defect classification is time-consuming and prone to errors. This study presents an automatic defect classification (ADC) method based on a deep convolution neutral network (DCNN) model. The trained model has proven itself to be able to achieve defect classification performance sufficiently good to serve in the Fab.
- Published
- 2021
10. The relationship between chronic diseases and depression in middle-aged and older adults: A 4-year follow-up study from the China Health and Retirement Longitudinal Study
- Author
-
Jin-Jing Pei, Hui-Xin Wang, Chang-Fu Hao, Yu-Han Bi, and Wu Yao
- Subjects
Adult ,medicine.medical_specialty ,Longitudinal study ,China ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Diabetes mellitus ,Epidemiology ,Medicine ,Humans ,Longitudinal Studies ,Information bias ,Socioeconomic status ,Depression (differential diagnoses) ,Aged ,Proportional Hazards Models ,Retirement ,business.industry ,Proportional hazards model ,Depression ,Middle Aged ,medicine.disease ,030227 psychiatry ,Psychiatry and Mental health ,Clinical Psychology ,Chronic Disease ,Quality of Life ,business ,030217 neurology & neurosurgery ,Rheumatism ,Follow-Up Studies - Abstract
Evidence of the association between common chronic diseases and depression is sparse.Totally 7819 participants aged 45+ without depression at baseline were followed-up (2011-2015) to detect incident depression. Chronic diseases and depression were defined by self-reported diagnosis and the Center for Epidemiological Studies Depression Scale (CES-D10), respectively. Cox proportional hazards model was used to explore the association between chronic diseases and depression adjusting for age, gender, education, marital/living conditions, area, smoking, drinking, economic status, BMI and health insurance.During an average of 3.42 years follow-up, 2271 participants developed depression (85 per 1000 person-year). Chronic diseases were related to significantly higher risk of depression (HR = 1.38). A higher risk of depression was also associated with specific diseases: stomach/other digestive diseases (HR = 1.19), diabetes (HR = 1.22), arthritis/rheumatism (HR = 1.30), and kidney diseases (HR = 1.34) (P0.05). The risk of depression increased with increasing in the number of chronic diseases (1: HR = 1.27, 2: HR = 1.49, and 3+: HR = 1.51, P-trend0.001). No significant difference was observed across age, gender, education, and area.Chronic diseases and depression were based on self-reported diagnosis and measurement scale, respectively, which could lead to information bias. Some unmeasured confounders might have biased the results.The occurrence of depression in people aged 45+ is associated with number of chronic diseases in a dose-response fashion. These results may provide guidance on preventing depression and improving the quality of life in middle and late adulthood.
- Published
- 2021
11. Depressive symptoms and cognitive impairment: A 10-year follow-up study from the Survey of Health, Ageing and Retirement in Europe
- Author
-
Fei-Fei Han, Wu Yao, Chang-Fu Hao, Hui-Xin Wang, Jin-Jing Pei, and Jia-Jia Wu
- Subjects
medicine.medical_specialty ,Aging ,03 medical and health sciences ,0302 clinical medicine ,mild cognitive impairment ,Risk Factors ,Internal medicine ,medicine ,Dementia ,Humans ,Cognitive Dysfunction ,Survey of Health, Ageing and Retirement in Europe ,Aged ,Retirement ,Proportional hazards model ,business.industry ,Depression ,Incidence (epidemiology) ,Hazard ratio ,Confounding ,Depressive symptoms ,late-life ,medicine.disease ,Confidence interval ,030227 psychiatry ,Europe ,Psychiatry and Mental health ,Ageing ,Female ,dose–response ,business ,030217 neurology & neurosurgery ,Research Article ,Follow-Up Studies - Abstract
Background Depressive symptoms and cognitive impairment often coexisted in the elderly. This study investigates the effect of late-life depressive symptoms on risk of mild cognitive impairment (MCI). Methods A total of 14,231 dementia- and MCI free participants aged 60+ from the Survey of Health, Ageing, and Retirement in Europe were followed-up for 10 years to detect incident MCI. MCI was defined as 1.5 standard deviation (SD) below the mean of the standardized global cognition score. Depressive symptoms were assessed by a 12-item Europe-depression scale (EURO-D). Severity of depressive symptoms was grouped as: no/minimal (score 0–3), moderate (score 4–5), and severe (score 6–12). Significant depressive symptoms (SDSs) were defined as EURO-D score ≥ 4. Results During an average of 8.2 (SD = 2.4)-year follow-up, 1,352 (9.50%) incident MCI cases were identified. SDSs were related to higher MCI risk (hazard ratio [HR] = 1.26, 95% confidence intervals [CI]: 1.10–1.44) in total population, individuals aged 70+ (HR = 1.35, 95% CI: 1.14–1.61) and women (HR = 1.28, 95% CI: 1.08–1.51) in Cox proportional hazard model adjusting for confounders. In addition, there was a dose–response association between the severity of depressive symptoms and MCI incidence in total population, people aged ≥70 years and women (p-trend Conclusions Significant depressive symptoms were associated with higher incidence of MCI in a dose–response fashion, especially among people aged 70+ years and women. Treating depressive symptoms targeting older population and women may be effective in preventing MCI.
- Published
- 2021
- Full Text
- View/download PDF
12. The Study of Defects Auto-Classification System in Semiconductor Manufacturing
- Author
-
Wang Pengfei, Yuhang Zhao, Zhengying Wei, Xu Chen, Fu Hao, Zhounan Wang, Shoumian Chen, and Chen Li
- Subjects
Artificial neural network ,Computer science ,Semiconductor device fabrication ,business.industry ,05 social sciences ,Process (computing) ,Pattern recognition ,010501 environmental sciences ,01 natural sciences ,Convolutional neural network ,Object detection ,Statistical classification ,0502 economics and business ,Key (cryptography) ,Process control ,Artificial intelligence ,050207 economics ,business ,0105 earth and related environmental sciences - Abstract
In semiconductor manufacturing, defects detecting and analyzing are one of the key contributors for process yield improvement. A system is proposed to classify the defects automatically, which is more efficient than traditional manual work. It becomes possible to control the process promptly. The proposed system has three main parts, the defect image pre-process module, the defect classification module and the network results post-process module. The convolutional neural network (CNN) is used as the base algorithm for defect classification. And the post-process part is developed to refine the confusing images results. The dataset in this work are all collected from the 12-inch process line and the results show that the system proposed is a good candidate for saving massive human work.
- Published
- 2020
13. Microfiber Optic Arrays as Top Coatings for Front-Contact Solar Cells toward Mitigation of Shading Loss
- Author
-
Hansheng Li, Fu-Hao Chen, Ian D. Hosein, and Saeid Biria
- Subjects
010302 applied physics ,chemistry.chemical_classification ,Optical fiber ,business.product_category ,Materials science ,business.industry ,02 engineering and technology ,Substrate (electronics) ,Polymer ,021001 nanoscience & nanotechnology ,01 natural sciences ,Ray ,law.invention ,chemistry ,law ,0103 physical sciences ,Solar cell ,Microfiber ,Optoelectronics ,General Materials Science ,Quantum efficiency ,0210 nano-technology ,business ,Current density - Abstract
Microfiber optic array structures are fabricated and employed as an optical structure overlaying a front-contact silicon solar cell. The arrays are synthesized through light-induced self-writing in a photo-crosslinking acrylate resin, which produces periodically spaced, high-aspect-ratio, and vertically aligned tapered microfibers deposited on a transparent substrate. The structure is then positioned over and sealed onto the solar cell surface. Their fiber optic properties enable collection of non-normal incident light, allowing the structure to mitigate shading loss through the redirection of incident light away from contacts and toward the solar cell. Angle-averaged external quantum efficiency increases nominally by 1.61%, resulting in increases in short-circuit current density up to 1.13 mA/cm2. This work demonstrates a new approach to enhance light collection and conversion using a scalable, straightforward, light-based additive manufacturing process.
- Published
- 2019
14. SpikeDroidDB: AN INFORMATION SYSTEM FOR ANNOTATION OF MORPHOMETRIC CHARACTERISTICS OF WHEAT SPIKE
- Author
-
M. A. Genaev, E. G. Komyshev, Fu Hao, V. S. Koval, N. P. Goncharov, and D. A. Afonnikov
- Subjects
0106 biological sciences ,0301 basic medicine ,phenotyping ,Interface (computing) ,Image processing ,Biology ,QH426-470 ,computer.software_genre ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Digital image ,wheat ,spike characteristics ,Genetics ,Common wheat ,data integration ,Digitization ,business.industry ,food and beverages ,Pattern recognition ,Visual inspection ,030104 developmental biology ,annotation ,Spike (software development) ,Artificial intelligence ,General Agricultural and Biological Sciences ,business ,computer ,010606 plant biology & botany ,Data integration - Abstract
The structure of the ear is one of the most important features of cereals associated with such agronomically important traits as productivity, resistance to environmental factors and pests, threshebility. Ears differ in shape, size, density, awnedness, color, etc. Analysis of the ear traits requires visual inspection, manual measurements and is very time-consuming. The effectiveness of ears’ phenotyping can be improved by the introduction of an automated image processing technology, storage of information in databases, use of machine learning algorithms to analyze this information. This paper presents a new approach for collecting, storing and analyzing of information about morphometric characteristics of ears of wheat. Two protocols for obtaining digital images of the ear have been developed. The computer-aided information system SpikeDroidDB has been developed, which allows you to store digital images of the ear, annotate their phenotypic features (14 features, including plant variety description, links to parent genotypes, generation, planting number, ear morphology description). The interface provides a flexible query system to access the data. SpikeDroidDB represents an interconnected representation between genotype, phenotype, location, and growing conditions. The web interface of SpikeDroidDB is available at http://spikedroid.biores . cytogen.ru/ and allows you to work with the system as with desktop computers or mobile devices. We used SpikeDroidDB for the digitization and annotation of a collection of ears of F 2 hybrids from crosses between the Australian cultivar of common wheat Triple Dirk and accession KU506 of Chinese wheat Triticum yunnanense. This experiment includes analysis of 104 plants, 230 spike images. The analysis of the variability of ears in form, length, and other traits allowed determination of the type of their genetic control: compactness is controlled by two recessive genes, awn type and hairi ness at the site of attachment of the spikelet to the axis is controlled by single dominant gene type, hairiness on the axis of the spike is controlled by two dominant genes.
- Published
- 2018
15. Synthesis of Micropillar Arrays via Photopolymerization: An in Situ Study of Light-Induced Formation, Growth Kinetics, and the Influence of Oxygen Inhibition
- Author
-
Shreyas Pathreeker, Fu-Hao Chen, Ian D. Hosein, and Saeid Biria
- Subjects
Materials science ,Polymers and Plastics ,business.industry ,Organic Chemistry ,Oxygen inhibition ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Inorganic Chemistry ,Photopolymer ,Optics ,Path length ,Materials Chemistry ,Optoelectronics ,sense organs ,Irradiation ,0210 nano-technology ,business ,Refractive index ,Intensity (heat transfer) ,Beam (structure) ,Microscale chemistry - Abstract
We report a study on the growth kinetics and resultant structures of arrays of pillars in photo-cross-linkable films during irradiation with a periodic array of microscale optical beams under ambient conditions. The optical beams experience a self-focusing nonlinearity owing to the photopolymerization-induced changes in refractive index, thereby concentrating light and driving the concurrent, parallel growth of microscale pillars along their path length. We demonstrate control over the pillar spacing and pillar height with the irradiation intensity, film thickness, and the size and spacing of the optical beams. The growth of individual pillars in a periodic array arises from the combination of intense irradiation in the beam regions and oxygen inhibition afforded by the open, ambient conditions under which growth is carried out. We propose a kinetic model for pillar growth that includes free-radical generation and oxygen inhibition in thick films of photoinitiated media in order to interpret the experimen...
- Published
- 2017
16. Study of a High-Efficiency 34-GHz Sheet Beam Extended Interaction Oscillator With Low Filling Factor
- Author
-
Esmond Agurgo Balfour, Wang Jian-Xun, Shu Guo-Xiang, Fu Hao, Liu Guo, Dong Kun, and Ren Xuxun
- Subjects
010302 applied physics ,Materials science ,Filling factor ,business.industry ,Mechanical engineering ,01 natural sciences ,010305 fluids & plasmas ,Electronic, Optical and Magnetic Materials ,Power (physics) ,Synchronization (alternating current) ,Electricity generation ,Optics ,Modulation ,Electric field ,Q factor ,0103 physical sciences ,Electrical and Electronic Engineering ,business ,Beam (structure) - Abstract
In this paper, high-efficiency low-filling-factor sheet beam extended interaction oscillator (SB-EIO) with an improved ladder structure is discussed. The Ka-band cavity with nine gaps is designed to operate at $2\pi $ mode. A sheet beam (8 mm $\times $ 0.6 mm) of 34 kV and 3.5 A is injected into SB-EIO through a beam tunnel of $12~\text {mm}\times 1.2$ mm. The axial electric field distribution and the synchronization conditions are optimized to improve the beam-wave interaction efficiency. An effective method is explored and utilized to suppress the mode competition. A stable output power of 35.9 kW and 30% efficiency are obtained for a 0.56 filling factor in narrow direction and 0.67 filling factor in wide direction. An output power of 22.8 kW and 19.1% efficiency are also attained even with a 0.4 filling factor in narrow direction and 0.67 filling factor in wide direction.
- Published
- 2016
17. Accuracy of self-reported height, weight and waist circumference in rural poor areas of China
- Author
-
wang quan-zhi, yu liang, li xiu-de, xie shao-yu, zhang li-bing, cao hong-juan, and fu hao
- Subjects
Waist ,business.industry ,Medicine ,business ,China ,Circumference ,Demography - Abstract
Background There were different voices about the accuracy of self-reported data. This study was to assess awareness and accuracy of self-reported height, weight and waist circumference (WC) among adult residents in rural poor areas of China for the first time. Methods Multi-stage stratified cluster random sampling was used to sample. Intraclass correlations (ICCs), Bland-Altman plots with limits of agreements (LOAs), Cohen’s kappa were used to examine the accuracy. Multi-factor Logistics and multiple linear regression were used to explore the effect of demographic and socioeconomic variables. Results Awareness rate of height, weight and WC were 66.29%, 82.29% and 60.00%, respectively. Height was over-reported 0.67 cm, weight and WC were under-reported 0.00 kg and 1.09 cm. ICC for height was 0.92, weight was 0.93 and WC was 0.93. Mostly differences were within 95% LOAs, but 95% LOAs were wide, especially WC. The percentage agreement (kappa) for BMI was 82.10% (0.71), for WC were 83.56% (0.66). Overall, obesity, overweight and increased WC were underestimated by 0.56%, 2.64% and 6.89%, respectively. Regression analysis showed some demographic and socioeconomic variables could affect the awareness and accuracy. Conclusions The self-reported height and weight could be used in rural poor areas of China, but the WC should be used with caution. The main task now is to further improve the awareness rate and accuracy of self-reported data, especially the people with low awareness rate and accuracy in certain subgroups. In addition, differences from the developed countries should be more discussed and investigated: all others showed people tend to under-reported weight, but the self-reported weight is amazingly accurate in our study; and contrary to studies in developed county, we found people tend to under-report WC.
- Published
- 2019
18. The impact of an mHealth app on knowledge, skills and anxiety about dressing changes: A randomized controlled trial
- Author
-
Fu-Hao Yeh, Hsiao-Yun Chang, Ya-Ping Hou, and Su-Shin Lee
- Subjects
Telemedicine ,medicine.medical_specialty ,Health Knowledge, Attitudes, Practice ,Taiwan ,Anxiety ,law.invention ,03 medical and health sciences ,Wound care ,0302 clinical medicine ,Randomized controlled trial ,law ,Medicine ,Humans ,030212 general & internal medicine ,Prospective Studies ,mHealth ,General Nursing ,integumentary system ,030504 nursing ,Family caregivers ,business.industry ,Bandages ,Mobile Applications ,Clinical trial ,Physical therapy ,Health education ,medicine.symptom ,0305 other medical science ,business - Abstract
To evaluate the effectiveness of a mobile health (mHealth) application, based on self-regulation theory, on patients' knowledge of wound care, skills in changing dressings and anxiety.A prospective randomized controlled trial.Seventy patients (or family members) at a 1,500-bed university hospital in Taiwan were randomized into an experimental (N = 35) or control group (N = 35) from March to December 2016. The experimental group used a mHealth application for wound care; the control group received verbal instructions and a booklet. Instruments to collect data were a wound care knowledge scale, wound care skills scale, State-Trait Anxiety Inventory, and a digital heart variability device. Data were collected at baseline, after three additional demonstrations and before discharge. The generalized estimating equation was used for statistical analysis.The experimental group showed significantly higher levels of wound care knowledge, improved wound care skills, lower levels of state anxiety, and lower heart rate variability than the control group after baseline data collection.Results support hat a mHealth application may be effective in health education. Clinicians can use the results to promote patients' wound care knowledge, enhance their wound care skills, and reduce anxiety related to dressing changes.Lack of wound care knowledge and skills can affect the willingness and ability to perform effective wound dressing changes, producing anxiety and having an impact on a patient's self-care after hospital discharge. mHealth applications (apps) have the potential to deliver health information in targeted and tailored ways that strengthen the self-management of diseases. mHealth app can increase wound care knowledge, improve care skills, and reduce anxiety related to wound care. mHealth app effectively supports self-monitoring of the wound healing process, self-judgement of the wound condition, and self-reaction of wound care accuracy. mHealth app provides step-by-step visual tutorials on wound care that allow patients and family caregivers to take pictures of the wounds and monitor the wound healing process. mHealth app for wound care knowledge is an effective and individualized method for learning.This study was registered by U.S. National Library of Medicine, ClinicalTrials.gov (ID: NCT03683303).目的: 基于自我调节理论,评估移动医疗(mHealth)应用程序对患者伤口护理知识、换药技能和焦虑程度的作用。 设计: 一项前瞻性随机对照试验 方法: 2016年3月至2016年12月,台湾一所拥有1,500张床位的大学附属医院的70名患者(或家属)被随机分为实验组(N = 35)或对照组(N = 35)。实验组使用移动医疗(mHealth)应用程序申请进行伤口护理;对照组收到口头指示和小册子。数据采集工具包括伤口护理知识量表、伤口护理技能量表、状态特质焦虑问卷和数字式心率变异装置。数据收集时间点是治疗前的基础值、三次额外演示后和出院前。采用广义估计方程进行统计分析。 结果: 在进行基础数据收集之后,实验组的伤口护理知识水平、伤口护理技能改善情况、状态特质焦虑水平和心率变异性均显著高于对照组。 结论: 研究结果支持移动医疗(mHealth)应用程序在健康教育中的有效性。临床医生可利用这些结果来加强患者的伤口护理知识,提高他们的伤口护理技能,降低与换药相关的焦虑。 影响: 缺乏伤口护理知识和技能会影响患者进行有效伤口换药的意愿和能力,使患者产生焦虑,并影响患者出院后的自我护理。移动医疗(mHealth)应用程序(apps)有可能提供具有针对性的定制化健康信息,从而加强患者对疾病的自我管理。移动医疗(mHealth)应用程序可以增加患者的伤口护理知识,提高护理技能,降低与伤口护理相关的焦虑。移动医疗(mHealth)应用程序可有效支持伤口愈合过程的自我监控、伤口状况的自我判断以及伤口护理准确性的自我反应。移动医疗(mHealth)应用程序可提供有关伤口护理的分步式可视化教程,允许患者和家庭护理提供者拍摄伤口照片并监控伤口愈合过程。移动医疗(mHealth)伤口护理知识应用程序是一种有效的个性化学习方法。 临床试验: 该研究在美国国立医学图书馆ClinicalTrials.gov注册(编号:NCT03683303)。.
- Published
- 2019
19. A 320 x 256 readout circuit with wide dynamic range and high injection efficiency
- Author
-
Xiang-yang Li, Fu-hao Liu, Ding Ma, and Yan Zhang
- Subjects
Cascade amplifier ,Materials science ,business.industry ,Amplifier ,Mixed-signal integrated circuit ,Capacitance ,Dot pitch ,law.invention ,Capacitor ,Readout integrated circuit ,law ,Wide dynamic range ,Optoelectronics ,business - Abstract
A 320×256 readout integrated circuit (ROIC) with a pixel pitch of 30μm is presented for solar-blind AlGaN ultraviolet focal array plane (FPA). Capacitor feedback transimpendance amplifier (CTIA) has been selected as the input structure of the ROIC because of its excellent performance. A novel cascade amplifier with a symmetrical differential input stage is designed for input stage of CTIA, and an ultra-low capacitance with a value of 10fF is in the feedback loop of the amplifier as integral capacitor. Furthermore, the ROIC read out in a rolling shutter mode by using cascade D flip-flops. The ROIC has been fabricated 0.35μm 2P4M mixed signal CMOS process and interfaced with AlGaN solar-blind ultraviolet focal array plane (UVFPA). The test result shows that 320×256 AlGaN UVFPA has a wide dynamic range of 88.2dB with 5V power supply and has a high injection efficiency of 98.2%.
- Published
- 2019
20. Characteristics of Polymer Waveguide Sensor Based on Local Surface Plasmon Resonance
- Author
-
李小龙 Li Xiao-long, 张丹 Zhang Dan, 刘森波 Liu Sen-bo, and 付浩 Fu Hao
- Subjects
Radiation ,Materials science ,business.industry ,Optoelectronics ,Surface plasmon resonance ,Condensed Matter Physics ,Polymer waveguide ,business ,Electronic, Optical and Magnetic Materials - Published
- 2016
21. Microtruss structures with enhanced elasticity fabricated through visible light photocuring
- Author
-
Saeid Biria, Fu-Hao Chen, Ian D. Hosein, and Hari Nanthakumar
- Subjects
chemistry.chemical_classification ,Fabrication ,Materials science ,business.industry ,General Physics and Astronomy ,02 engineering and technology ,Polymer ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Microstructure ,01 natural sciences ,lcsh:QC1-999 ,0104 chemical sciences ,law.invention ,Photopolymer ,chemistry ,law ,Optoelectronics ,Elasticity (economics) ,0210 nano-technology ,business ,lcsh:Physics ,Microscale chemistry ,Visible spectrum ,Light-emitting diode - Abstract
We report on the fabrication of an open cellular solid structure using visible light photocuring in combination with light-induced self-writing. A visible light sensitive photopolymer is irradiated with multiple arrays of microscale optical beams, which are generated from LEDs. These beams undergo self-trapping and elicit the inscription of microscale, solid struts into the medium. This process creates a structure consisting of multiple, intersecting struts that form a microtruss structure. Such structures retain their elasticity at higher temperatures as compared to a bulk film of the same thickness. This is the first demonstration of visible light photocuring of photopolymers into a microtruss structure, as well as investigation into their elastic properties under tension. Keywords: Polymers, Self-trapping, Microstructures, Cellular solids
- Published
- 2017
22. Study on Spatial and Temporal Changes of Ecological Vulnerability in Weinan Area Based on GIS
- Author
-
Liu Xinlei, Fu Hao, and Li Xuxiang
- Subjects
Geography ,business.industry ,Environmental resource management ,business ,Ecological vulnerability - Abstract
With the development of urbanization, the ecological environment of the typical agro-development city-Weinan is disturbed to varying degrees, and it restricts the coordinated development of resources, population and environment in the region. This paper combines social, economic and climate data to propose an index system suitable for the evaluation of ecological vulnerability in Weinan. The analytic hierarchy process was used to quantitatively evaluate the ecological vulnerability of the Weinan region. The results showed that from 2000 to 2011, the urban ecological vulnerability index(EVI) was higher than that of the surrounding counties, which had a great relationship with the impact of urbanization on ecological vulnerability. The extremely fragile areas of ecological vulnerability in Weinan were mainly distributed in the urban areas of Linwei District and Hancheng. The main reason was that these cities had a fast development speed and a strong industrial base, which had a great impact on the ecological vulnerability.
- Published
- 2019
23. Adaptive Hydraulic Potential Energy Transfer Technology and Its Application to Compressed Air Energy Storage
- Author
-
Cui Yan, Jiang Tong, Bin Li, and Fu Hao
- Subjects
Control and Optimization ,Compressed air energy storage ,020209 energy ,Energy Engineering and Power Technology ,02 engineering and technology ,lcsh:Technology ,Stability (probability) ,Automotive engineering ,Hydraulic head ,020401 chemical engineering ,Electrical equipment ,0202 electrical engineering, electronic engineering, information engineering ,stable water head ,0204 chemical engineering ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,liquid-controlled compressed air energy storage ,Range (particle radiation) ,lcsh:T ,Renewable Energy, Sustainability and the Environment ,business.industry ,compressed air energy storage ,adaptive hydraulic potential energy transfer ,Potential energy ,Environmental science ,Electricity ,business ,Energy (signal processing) ,Energy (miscellaneous) - Abstract
In recent years, Hydro-pneumatic cycling compressed air energy storage (HC-CAES) has become an important topic in compressed air energy storage (CAES) technology research. In HC-CAES, air is compressed by liquid and driven by electrical equipment when energy is stored, and then, liquid is used to drive the water conservancy equipment to generate electricity. In this study, adaptive hydraulic potential energy transfer technology is proposed to solve a series of problems in the HC-CAES system, including the high fluctuation range of gas potential energy, poor operating stability, low efficiency, and so on. Therefore, fluctuating potential energy can be stably transferred through the variable area hydraulic devices, which can be controlled with an on&ndash, off valve. The structure and operation scheme of the adaptive hydraulic potential energy transfer device used in the HC-CAES system are explained in detail, the device can provide a stable water head range for the highly efficient operation of water conservancy equipment. Moreover, an optimal operation scheme was determined through simulation analysis, a physical experiment platform was built to verify the feasibility of the design and stability of system operation.
- Published
- 2018
- Full Text
- View/download PDF
24. Percutaneous Transhepatic Cholangiography and Intraductal Radiofrequency Ablation Combined with Biliary Stent Placement for Malignant Biliary Obstruction
- Author
-
Dechao Jiao, Jianzhuang Ren, Zhen Li, Xinwei Han, Xuhua Duan, Chang-Fu Hao, Teng-Fei Li, Kai Zhang, Guo-Hao Huang, Meng-Fan Zhang, Yanli Wang, and Chen Chen
- Subjects
Male ,medicine.medical_specialty ,Radiofrequency ablation ,medicine.medical_treatment ,Perforation (oil well) ,Catheter ablation ,Percutaneous transhepatic cholangiography ,Stent patency ,law.invention ,Postoperative Complications ,law ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,cardiovascular diseases ,Cholestasis ,business.industry ,Middle Aged ,Jaundice ,equipment and supplies ,Ablation ,Treatment Outcome ,Bile Duct Neoplasms ,Catheter Ablation ,Biliary stent ,Female ,Stents ,Radiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Cholangiography - Abstract
To determine the safety and feasibility of percutaneous transhepatic cholangiography (PTC) and intraductal radiofrequency (RF) ablation combined with biliary stent placement for malignant biliary obstruction.Data from patients with unresectable malignant biliary obstruction who underwent PTC, intraductal RF ablation, and biliary stent placement (n = 12) or PTC and biliary stent placement only (control group; n = 14) were reviewed. Postoperative complications, jaundice remission, and stent patency were assessed.All procedures were successful. No severe complications (eg, biliary bleeding, perforation) occurred. Two experimental group patients developed cholangitis, which resolved with conservative treatment. The 1-week jaundice remission and 3-month stent patency rates were similar in both groups, but the 6-month stent patency rate was higher in the experimental group (P.05). In the experimental group, one death occurred as a result of gastrointestinal hemorrhage (unrelated to stent placement) by 3 months, and there were two cases of recurrent jaundice by 6 months. The latter two patients underwent repeat PTC, ablation, and stent placement. In the control group, one death occurred as a result of hepatic failure caused by progressive jaundice at 3 months, and another death resulted from disseminated intravascular coagulation caused by jaundice recurrence at 138 days after stent placement. In addition, seven patients developed jaundice recurrence (50-151 d after stent placement). PTC and repeat stent placement were performed in these patients.Percutaneous transhepatic cholangiography and intraductal RF ablation combined with biliary stent placement for malignant biliary obstruction is safe and feasible and effectively prolongs stent patency time.
- Published
- 2015
25. Study on a Glucose Concentration Measurement System Based on Microwave Perturbation Technique
- Author
-
Jiantong Li, Xia Xiao, Fu Hao, and Yong Zong
- Subjects
Materials science ,business.industry ,Capillary action ,System of measurement ,Metals and Alloys ,Perturbation (astronomy) ,Frequency shift ,Dielectric ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Optics ,Ceramics and Composites ,Electrical and Electronic Engineering ,business ,Microwave - Abstract
The relationship of frequency shift and glucose concentration was determined by microwave perturbation theory, and a measurement system was designed. The sensing device is a cylindrical cavity working at 7 GHz with TE011 mode. The glucose solution is placed in a capillary tube that is in the middle of the cavity. The geometrical parameters of the coupling device are optimized to make the system perform better. The radius of the capillary is 2 mm, which guarantees the volume of the capillary tube, being small enough to be neglected when concentration changes. Three modules: detecting, tracking and measuring module based on FPGA help monitor frequency change. The resolution of the system reaches up to 10 mg/dl which is promising for measuring blood glucose in the future.
- Published
- 2015
26. Research on Looped Network Operation Scheme and Feasibility of Low-Voltage Distribution Network
- Author
-
Jian Wu, Jiang Tong, Xu Jie He, Tong Xiao, Fu Hao, and Hui Chen
- Subjects
Scheme (programming language) ,Engineering ,Network information system ,business.industry ,Open-loop controller ,Programmable logic controller ,Mode (statistics) ,General Medicine ,Loop (topology) ,Electric power system ,Electronic engineering ,business ,Low voltage ,computer ,computer.programming_language - Abstract
Distribution network is an important part of power system, the biggest feature of the structure is that the end of power network is directly connected to the users, demanding for safety and quality. This article introduces the low voltage distribution network operation theory, designs a low-voltage wiring mode, and by analyzing the disadvantages of this kind of connection, the optimal switching looped network operation is put forward; at the end of the low voltage distribution network flow calculation, by comparing the results of the loop closing operation with the open loop operation, the feasibility and advantages of loop operation is proved.
- Published
- 2014
27. Research on Control Strategy for Low-Voltage Looped Network
- Author
-
Tong Xiao, Fu Hao, Pei Qiang Lv, Xu Jie He, Ye Wei Tao, and Jiang Tong
- Subjects
Scheme (programming language) ,Engineering ,Distribution networks ,business.industry ,Event (computing) ,Reliability (computer networking) ,Control (management) ,General Medicine ,Power (physics) ,Control theory ,business ,computer ,Low voltage ,computer.programming_language ,Computer network - Abstract
This paper proposes a scheme of the looped network applied to low-voltage distribution network and introduces the control strategy for looped network in the normal event of a distribution network failure. Besides, the paper shows the superiority of the looped network in reducing the outage time and improving the power distribution reliability.
- Published
- 2014
28. Kinect-based Taiwanese sign-language recognition system
- Author
-
Yi-Han Hsiao, Greg C. Lee, and Fu Hao Yeh
- Subjects
Computer Networks and Communications ,Intelligent character recognition ,Computer science ,business.industry ,Speech recognition ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,020207 software engineering ,Usability ,02 engineering and technology ,Support vector machine ,Hardware and Architecture ,Gesture recognition ,Component (UML) ,0202 electrical engineering, electronic engineering, information engineering ,Media Technology ,Three-dimensional face recognition ,020201 artificial intelligence & image processing ,Computer vision ,Artificial intelligence ,Hidden Markov model ,business ,Software ,Gesture - Abstract
Gesture-recognition is an important component for many intelligent human---computer interaction applications. For example, a realtime sign-language recognition system would detect and interpret hand gestures. Many vision-based sign-language recognition methods have been proposed over the years with mix results of usability. Some system are limited to recognize only a few gestures, while others require the use of 3D camera to provides depth information to improve recognition accuracy. In this paper, a Kinect-based Taiwanese sign-language recognition system is proposed. Three main features are extracted from the signing gestures, namely hand positions, hand signing direction, and hand shapes. The hand positions are readily available through the input sensor. The signing direction is determined using HMM on trajectory of the hand movement, and a SVM is trained and used to recognize the hand shapes. Experimental results show that the proposed system achieved an 85.14 % recognition rate.
- Published
- 2014
29. Economic Evaluation Methodology of New Energy-Saving Power Transformers and Suggestions for Challenges
- Author
-
Fu Hao, Jiang Tong, Tong Xiao, Li Min Zhao, and Xu Jie He
- Subjects
Payback period ,business.industry ,Electrical engineering ,New energy ,General Medicine ,engineering.material ,Reliability engineering ,law.invention ,law ,Economic evaluation ,engineering ,Economic analysis ,Energy efficient transformer ,business ,Transformer ,Electrical steel - Abstract
For energy-saving and consumption-reducing, new energy-saving transformer becomes more and more important. Via an economic evaluation methodology called Total Owning Cost (TOC), this article compares energy-saving transformer with high-energy transformer for examples in the angle of transformer loss and picks up the optimum energy-efficient transformer which can be expected to gain more benefit during transformer life cycle. This article also analyses cost of silicon steel sheet used in the transformer core and benefit in Total Owning Cost (TOC) of upgrading silicon steel sheet which primarily reduces no-load loss. Based on calculated results of Total Owning Cost (TOC) and payback period, the new energy-efficient transformer replacement plan, economic discussion and promotion proposal are brought up.
- Published
- 2014
30. Design and Simulation for Braking System of FSAE Racing Car
- Author
-
Fu Hao Liu, Jun Jie Chen, and Tang Pei
- Subjects
Engineering ,business.industry ,ComputerSystemsOrganization_MISCELLANEOUS ,Braking system ,Key (cryptography) ,General Medicine ,business ,Automotive engineering - Abstract
This paper introduces the method of braking system design for FSAE racing car. Based on the rules of FSAE, the requirements of braking performance were analyzed and the layout was confirmed. The forces of the braking system were analyzed under different braking strengths. The simulation results show that the ?design of the braking system ?can ?meet the strength requirements. Key words: Design ; Simulation ;FSAE; Racing car
- Published
- 2014
31. Kinetics research on mixed solvents of MDEA and enamine in natural gas decarbonization process
- Author
-
Jie Chen, Guo Qing, Yue Wang, Dalong Zeng, Fu Hao, Chu Jie, Hua Yihuai, and Jianfeng Tang
- Subjects
business.industry ,Kinetics ,Inorganic chemistry ,Energy Engineering and Power Technology ,Geotechnical Engineering and Engineering Geology ,Enamine ,Solvent ,Chemical kinetics ,Absorption rate ,chemistry.chemical_compound ,Fuel Technology ,chemistry ,Natural gas ,Scientific method ,Amine gas treating ,business - Abstract
Mixed amine solvents have become research trend as their great performance of decarbonization in recent years. The kinetics model was established and fitted to the experimental data. Then the reaction kinetics of mixed solvents of MDEA and enamine in CO2 absorption process were analyzed through model. The results showed that the optimum concentration of absorbent and operating temperature exists in single MDEA system. As for mixed amine systems, the CO2 absorption capacity was stronger as the DETA or TETA dosages were greater. The model prediction accuracy for single MDEA solvent was better while the model prediction accuracy for 2.0 MDEA/1.0 DETA was decreased. When absorption rate was slower, the reaction was more close to the pseudo first order, and then the prediction accuracy of the model was higher. The research in this paper can promote the industrial applications of mixed amine solvents.
- Published
- 2014
32. Image Trading Mechanism Based on Hybrid Watermarking Techniques
- Author
-
S. C. Wang, C. H. Liao, Fu Hao Yeh, and Greg C. Lee
- Subjects
Engineering ,Multimedia ,business.industry ,Digital Watermarking Alliance ,Data_MISCELLANEOUS ,Mechanism based ,ComputingMilieux_LEGALASPECTSOFCOMPUTING ,General Medicine ,E-commerce ,computer.software_genre ,Domain (software engineering) ,Image (mathematics) ,Discrete cosine transform ,Computer vision ,Artificial intelligence ,business ,Digital watermarking ,computer ,TRACE (psycholinguistics) - Abstract
This paper presents a novel image trading mechanism based on hybrid watermarking techniques. The removable visible watermarking technique is used to provide the safe preview of the protected media. The fingerprinting is used to trace the illegal distributor. Two kinds of watermarking techniques embed watermarks in DCT domain in order to conform to compression techniques. Experimental results show that image trading mechanism based on hybrid watermarking techniques can protect the image with high quality.
- Published
- 2014
33. Benefit Estimation of Automatic Braking System Based on Real-World Pedestrian Accidents
- Author
-
Chun Yu Kong, Jin Nie, Xiao Bao Gao, Fu Hao Mo, and Jikuang Yang
- Subjects
Pedestrian accident ,Estimation ,Engineering ,Automatic braking ,business.industry ,General Engineering ,Injury risk ,Crash ,Pedestrian ,business ,Automotive engineering ,Simulation - Abstract
The aim of the current study was to assess effectiveness of automatic braking system quantitatively using real pedestrian accident data selected from IVAC database. Based on the IVAC pedestrian accident scenarios, vehicle and pedestrian trajectories, and other information, the relative position of vehicles and pedestrians were estimated one second (0.5 second) prior to the actual crash. According to the pedestrian fatal (AIS3+) risk and compared with the real pedestrian casualty risk, the benefit of the automatic braking system was calculated. About 86.8% (82.3%) reduction in pedestrian fatal (AIS3+) injury at a field of view of 60°.
- Published
- 2014
34. Increasing light capture in silicon solar cells with encapsulants incorporating air prisms to reduce metallic contact losses
- Author
-
Jaspreet Kaur, Shreyas Pathreeker, Ian D. Hosein, and Fu-Hao Chen
- Subjects
Fabrication ,Materials science ,Silicon ,business.industry ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Solar energy ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,010309 optics ,Solar cell efficiency ,Optics ,chemistry ,Angle of incidence (optics) ,0103 physical sciences ,Reflection (physics) ,Optoelectronics ,Quantum efficiency ,Prism ,0210 nano-technology ,business - Abstract
Silicon solar cells are the most widely deployed modules owing to their low-cost manufacture, large market, and suitable efficiencies for residential and commercial use. Methods to increase their solar energy collection must be easily integrated into module fabrication. We perform a theoretical and experimental study on the light collection properties of an encapsulant that incorporates a periodic array of air prisms, which overlay the metallic front contacts of silicon solar cells. We show that the light collection efficiency induced by the encapsulant depends on both the shape of the prisms and angle of incidence of incoming light. We elucidate the changes in collection efficiency in terms of the ray paths and reflection mechanisms in the encapsulant. We fabricated the encapsulant from a commercial silicone and studied the change in the external quantum efficiency (EQE) on an encapsulated, standard silicon solar cell. We observe efficiency enhancements, as compared to a uniform encapsulant, over the visible to near infrared region for a range of incident angles. This work demonstrates exactly how a periodic air prism architecture increases light collection, and how it may be designed to maximize light collection over the widest range of incident angles.
- Published
- 2016
35. Color Image Quality Assessment Based on Quaternion Spectral Residual
- Author
-
岳靖 Yue Jing, 付浩 Fu Hao, and 刘国军 Liu Guojun
- Subjects
Computer science ,Color image ,business.industry ,Quality assessment ,Computer vision ,Artificial intelligence ,Electrical and Electronic Engineering ,Residual ,Quaternion ,business ,Atomic and Molecular Physics, and Optics - Published
- 2019
36. Enhanced Wide-Angle Energy Conversion Using Structure-Tunable Waveguide Arrays as Encapsulation Materials for Silicon Solar Cells (Phys. Status Solidi A 2∕2019)
- Author
-
Saeid Biria, Fu-Hao Chen, and Ian D. Hosein
- Subjects
Materials science ,Silicon ,business.industry ,chemistry.chemical_element ,Surfaces and Interfaces ,Condensed Matter Physics ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Encapsulation (networking) ,chemistry ,Materials Chemistry ,Optoelectronics ,Energy transformation ,Electrical and Electronic Engineering ,business - Published
- 2019
37. Enhanced Wide-Angle Energy Conversion Using Structure-Tunable Waveguide Arrays as Encapsulation Materials for Silicon Solar Cells
- Author
-
Ian D. Hosein, Saeid Biria, and Fu-Hao Chen
- Subjects
Materials science ,Silicon ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,law.invention ,law ,Materials Chemistry ,Energy transformation ,Electrical and Electronic Engineering ,chemistry.chemical_classification ,business.industry ,Surfaces and Interfaces ,Polymer ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,0104 chemical sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Encapsulation (networking) ,Optical coating ,chemistry ,Optoelectronics ,Quantum efficiency ,0210 nano-technology ,business ,Waveguide - Published
- 2018
38. Construction of Knowledge Model in Collaborative Learning System
- Author
-
Xia Zhang, Bai Li Sun, and Shang Fu Hao
- Subjects
Knowledge management ,Computer science ,business.industry ,Knowledge engineering ,Open Knowledge Base Connectivity ,Educational technology ,Collaborative learning ,General Medicine ,Personalized learning ,Procedural knowledge ,Experiential learning ,Body of knowledge ,Team learning ,Knowledge extraction ,Knowledge integration ,Organizational learning ,Personal knowledge management ,Domain knowledge ,business - Abstract
Base on the study of interactive collaborative learning system, a construction program of a knowledge-centric interactive collaborative learning system is proposed. The program adopts the knowledge point as the smallest element of teaching resource library, and constructs knowledge model through the relationship between knowledge points. In this paper, the course Computer Organization Principles is taken as an example to build knowledge point repository which is with a certain applicable value and be of guiding significance for the subsequent collaborative learning research.
- Published
- 2013
39. P.55: A Study of Optimal Viewing Distance in an AS3D Display
- Author
-
Yi-Han Chen, Kuo-Chung Huang, Yi-Heng Chou, Wan-Hsuan Hsu, Fu-Hao Chen, Kuen Lee, Lang-chin Lin, Ching-Chiu Liao, and Hoang Yan Lin
- Subjects
Eye position ,Geography ,business.industry ,Computer graphics (images) ,Ray tracing (graphics) ,Computer vision ,Artificial intelligence ,Stereo display ,business ,Metrology - Abstract
Optimal Viewing Distance (OVD) is a basic and important auto-stereoscopic 3D (AS3D) display characteristic. A number of studies, especially in the 3D display design and metrology fields, have mentioned this item for a long time. Unfortunately, there have been few theoretical and empirical studies on OVD. In this paper, we study OVD based on designer's formula, and geometrical and ray tracing approaches are applied to the simulation and measured data. We find that the OVD no more exist in practical cases, and we suggest the thought OVD should be modified by designated eye position (DEP).
- Published
- 2013
40. A crosstalk model and its application to stereoscopic and autostereoscopic displays
- Author
-
Lang-chin Lin, Ching-Chiu Liao, Kuo-Chung Huang, Yi-Heng Chou, Yi-Han Chen, Fu-Hao Chen, Kuen Lee, and Hoang Yan Lin
- Subjects
Computer science ,business.industry ,Stereoscopy ,Stereo display ,Grayscale ,Luminance ,Atomic and Molecular Physics, and Optics ,Image contrast ,Electronic, Optical and Magnetic Materials ,law.invention ,Metrology ,Crosstalk ,law ,Autostereoscopy ,Computer graphics (images) ,Computer vision ,Artificial intelligence ,Electrical and Electronic Engineering ,business - Abstract
We propose a model to quantify the crosstalk phenomenon for stereoscopic and autostereoscopic displays, separate crosstalk contributed from co-location image contrast (CIC) and system crosstalk (SCT), introduce gray scale dependency of CIC, modify model for gray scale dependency of SCT in active type 3D displays, and apply the model to derive the 3D luminance and SCT measurement formulas. The model might serve as a basis for the 3D metrology, and the results of this research should be of reference value to hardware makers and inspectors of stereoscopic and autostereoscopic displays.
- Published
- 2013
41. A study of optimal viewing distance in a parallax barrier 3D display
- Author
-
Wan-Hsuan Hsu, Ching-Chiu Liao, Lang-chin Lin, Kuen Lee, Fu-Hao Chen, Hoang Yan Lin, Kuo-Chung Huang, Yi-Heng Chou, and Yi-Han Chen
- Subjects
Pixel ,business.industry ,Computer science ,Parallax barrier ,Optical refraction ,Stereo display ,Geometric method ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Optics ,Cover glass ,Autostereoscopy ,Ray tracing (graphics) ,Computer vision ,Artificial intelligence ,Electrical and Electronic Engineering ,business - Abstract
The optimal viewing distance was proposed as a parameter for designing a parallax barrier 3D display. It can be designed based on simple geometric method and by considering the pitches of image display pixels and parallax barrier, or even including the aperture ratios of the image display pixels and parallax barrier. It can be analyzed by using ray tracing method. By considering the optical refraction index of the cover glass, the angular behavior of the system becomes more realistic; however, the geometric method is difficult to be used. We propose a revised method for estimating the view distance and angular behavior. In this paper, we have demonstrated a designated eye position (DEP) for each view and shown that multiple DEPs make a circular curve around the center of the display. We prove the new concept by comparing the optical ray tracing calculations and optical measurement.
- Published
- 2013
42. 65.3: Phase-Modulation LCoS Display System with Off-Axis LED Reconstruction Light
- Author
-
Li Yuan Liao, Engle Liao, Sylvia Hong, Fu-Hao Chen, Cheng-Huan Chen, and Chao Hsu Tsai
- Subjects
Materials science ,Laser diode ,business.industry ,Image quality ,law.invention ,Liquid crystal on silicon ,Optics ,Light source ,law ,Holographic display ,Optoelectronics ,business ,Phase modulation ,Light-emitting diode ,Diode - Abstract
A near eye holographic display using light-emitted diode (LED) instead of laser diode as the reconstruction light source has been proposed. An off-axis illumination architecture on a phase modulation only liquid crystal on silicon(LCoS) panel is used for investigating the influence of LED source property on the reconstruction image quality.
- Published
- 2013
43. The Researching on Evaluation Analysis Model about Student's Study Quality Based on Web
- Author
-
Yuan Qiang Wang, Zhihui Wang, Bai Li Sun, and Shang Fu Hao
- Subjects
Web technology ,Engineering ,Study quality ,Multimedia ,business.industry ,Teaching method ,General Medicine ,Diversification (marketing strategy) ,computer.software_genre ,Engineering management ,Teaching effect ,Correlation analysis ,ComputingMilieux_COMPUTERSANDEDUCATION ,Quality monitoring ,business ,computer ,Learning behavior - Abstract
With the development and formation of networked and digital campus, the characteristic of diversification and complicated have been founded in student’s learning behavior. At the same time, for more broad application of web technology, promoted the ascension of teaching effect and reformation on education teaching method. In this paper a new evaluation analysis model about student's study quality based on web was proposed, and in this model, and in this model the correlation analysis algorithm has been used to verified the danamic relationship between analysis model and student performance, with the description of core technology in this model the validity and practicability of teaching quality monitoring process in the level student was proved.
- Published
- 2012
44. Congestion control algorithm based on congestion level and data rate for concurrent multipath transfer in wireless mesh networks
- Author
-
Fu Hao, Yuan-an Liu, Fan Yuanyuan, and Liu Kaiming
- Subjects
Flow control (data) ,Network congestion ,Wireless mesh network ,business.industry ,Computer science ,Slow-start ,Real-time computing ,Data rate ,TCP congestion-avoidance algorithm ,business ,Multipath propagation ,Congestion control algorithm ,Computer network - Published
- 2016
45. Study on material relative permittivity using TE011 cylindrical microwave cavity
- Author
-
Fu Hao, Xia Xiao, and Jiantong Li
- Subjects
Permittivity ,Waveguide (electromagnetism) ,Materials science ,Aperture ,business.industry ,020208 electrical & electronic engineering ,Physics::Optics ,Relative permittivity ,020206 networking & telecommunications ,02 engineering and technology ,Dielectric ,Vacuum permittivity ,Resonator ,Optics ,0202 electrical engineering, electronic engineering, information engineering ,Physics::Accelerator Physics ,business ,Microwave cavity - Abstract
In this paper a cavity resonator system based on microwave perturbation theory which is used for measuring the relative permittivity of material has been presented. The cavity works with the frequency of 7GHz and TE011 is chosen as the working mode to avoid other perturbing modes. After calculating and analyzing rectangle waveguide WR-112 is chosen to feed energy for the cavity. The radii of coupling aperture and radii of capillary are optimized. Results show that aperture radius=4mm and capillary=2.6mm make the system perform better. Five different samples are filled in the capillary to verify the performance of the cavity and the cavity resonator is highly sensitive to the change of dielectric constant of materials and it can be used for characterizing and studying dielectric character of materials.
- Published
- 2016
46. Simulation Research of Micro-atomizer Flat-plate Dielectric-barrier Discharge
- Author
-
Honghua Liao, Fu Hao, Hailing Yuan, Xuwei Xia, and Binbin Zhou
- Subjects
Engineering ,business.industry ,Partial discharge ,Analytical chemistry ,Electric discharge ,Dielectric barrier discharge ,business ,Engineering physics - Published
- 2016
47. P-62: Evaluation of Gray-to-Gray Crosstalk for Time-Sequential Stereoscopic Display
- Author
-
Fu-Hao Chen, Jinn-Cherng Yang, Kuen Lee, Kuo-Chung Huang, and Yi-Heng Chou
- Subjects
Computer science ,business.industry ,Image quality ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Stereoscopy ,Hardware_PERFORMANCEANDRELIABILITY ,Stereo display ,law.invention ,Crosstalk ,law ,Computer graphics (images) ,Hardware_INTEGRATEDCIRCUITS ,Computer vision ,Artificial intelligence ,business - Abstract
Crosstalk is an important factor in determining image quality of stereoscopic display. Traditional system crosstalk model, evaluated for both time-sequential and spatially stereoscopic displays, is not suitable for time-sequential 3D display. A modified gray-to-gray crosstalk model for time-sequential stereoscopic display is proposed and evaluated with comparing in this study, and it shows the new model is more close to the crosstalk in reality.
- Published
- 2012
48. The Study of Score Analysis for Secondary School Based on Data Mining Technology
- Author
-
Shang Fu Hao, Ying Hui Wei, and Zhi Qiang Zhang
- Subjects
Decision support system ,Java ,Computer science ,business.industry ,General Engineering ,Standard score ,computer.software_genre ,Data science ,Software ,Work (electrical) ,School based ,Data mining ,business ,computer ,computer.programming_language - Abstract
Nowadays, the contents associated with deep score analysis is rarely involved in the existing secondary teaching management software, which is not conductive to fully develop the information implied by these data,without scientific teaching evaluation. Using data mining technology, multiple aspects of student score distribution will be shown accurately, identifying the regular factors affecting score changes. Standard score as the mathematical model is adopted in the system, choosing the standard SOA architecture model, and a scientific and efficient score analysis system based on JAVA, JSP is developed. The system provides decision support information for academic departments to promote better teaching work, and finally improve the quality of teaching.
- Published
- 2011
49. The Design of Multi-Level Interrupt Virtual Experiment Based on Object-Oriented
- Author
-
Shang Fu Hao, Zhihui Wang, and Yuan Qiang Wang
- Subjects
Engineering drawing ,Object-oriented programming ,Engineering ,business.industry ,Real-time computing ,General Engineering ,Virtual reality ,computer.software_genre ,Software ,Virtual machine ,Factory (object-oriented programming) ,Discrete event simulation ,Interrupt ,business ,computer ,Instructional simulation - Abstract
The virtual reality technology is a three-dimensional virtual environment composed by computer hardware, software and various of sensors. It creates an unprecedented wealth of content and more fantastic teaching environment which reflects strong advantage in experiment and practice. In accordance with the needs of experiment teaching, multi-level interrupt virtual experiment environment is studied combining with the characteristics of its principle. The experiment environment is based on Tec-xp test box designed and developed by Tsinghua University computer factory. Microsoft Visual C++6.0 language is adopted for software platform development. Seen from the system needs analysis, object-oriented simulation method is adopted for modeling in this experiment environment. Meanwhile combining with computer system features and the characteristics of Computer Organization Principle teaching, the basic theory and methods of discrete event system simulation are used, which make the operation of virtual environment the same as on real device.
- Published
- 2010
50. Study on Computer Virus Search System Based on Content Addressable Memory
- Author
-
Shang Fu Hao, Bai Li Sun, and Zhihui Wang
- Subjects
Structure (mathematical logic) ,Scheme (programming language) ,Computer science ,business.industry ,General Engineering ,Content-addressable memory ,business ,computer.software_genre ,computer ,Computer hardware ,Computer virus ,computer.programming_language - Abstract
The structure, characteristics and use of MCM69C432 are introduced in the paper, based upon which a virus search scheme is proposed aiming at its characteristics. Through constructing CAM rule matching unit, the package head and data load are filtered parallelly, and the filtered results are handled centralizely according to the rule response requirements. It makes the system more powerful in processing and applicability, which has a good application prospect.
- Published
- 2010
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.