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Modular Design Using Sustainable Luminescent Materials in Energy-Saving Reflective Cat’s Eyes for Public Road Safety Planning

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Journal of Renewable Materials 2022年第5期10卷 1415-1437页

作者： Lung-yin Lin yu-Shing Chang Department of Industrial Design National Kaohsiung University of Science and TechnologyKaohsiung82445Taiwan Department of Business Administration National Taichung University of Science and TechnologyTaichung404Taiwan

Recently,there has been a global movement toward environmental protection and energy conservation through the design and development of new products in accordance with sustainable *** this study,rare earth luminescent materials were used owing to their active light emission and ***,solar lightemitting diode lights and car-light reflection were utilised to increase the recognition and reliability of reflective cat *** with carbon reduction,this can save energy and enhance road *** study considered the Theory of Inventive Problem Solving and a literature review to analyse the issues in existing ***,expert interviews were conducted to screen projects and develop product design ***,the ratio of light-storage materials was experimentally determined and the prototypes *** cat’s eye addresses the shortcomings identified in previous analyses of existing *** applied energy storage environmental protection materials,together with material proportioning(which balanced warning efficiency against cost-effectiveness)to develop diversified modular kits;these were flexible in terms of quantity and easily *** study achieved four key objectives:(1)reducing the research and development costs of the manufacturer;(2)offering buyers a diverse suite of products;(3)responding to a need to improve diverse road user safety;and(4)reducing government procurement costs for safety warning *** results provide a reference for the creative modular design of energy-saving products for public road safety planning in various industries.

关键词： Sustainable luminescent materials modular design TRIZ expert interview diverse road safety

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Improved astrometry of space debris with image restoration

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Research in Astronomy and Astrophysics 2014年第8期14卷 992-1000页

作者： Rong-yu Sun Chang-yin Zhao Key Laboratory of Space Object and Debris Observation Chinese Academy of Sciences Purple Mountain Observatory Chinese Academy of Sciences

In order to implement an observing strategy, image degradation that occurs during optical observation of space debris is ineluctable and has distinct characteris- tics. Image restoration is presented as a way to remove the influence of degradation in CCD images of space debris, based on assumed PSF models with the same F-WHM as images of the object. In the process of image restoration, the maximum entropy method is adopted. The results of reduction using observed raw CCD images indi- cate that the precision in estimating positions of objects is improved and the effects of degradation are reduced. Improving the astrometry of space debris using image restoration is effective and feasible.

关键词： techniques image processing -- space vehicles -- astrometry -- methods data analysis

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A Risk Prediction Model for Ischemic Stroke in Southern Chinese Population:Impact of Multiple Genetic Variants and Clinical/Lifestyle Factors

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Biomedical and Environmental Sciences 2021年第8期34卷 641-645页

作者： YE Cheng yin LI Jin Mei WU Jing Hua LI Zheng XIAO Juan yin Xiao yu WANG da Hui XU Guo Zhang YANG Lei Medical School Hangzhou Normal UniversityHangzhou 310000ZhejiangChina Ningbo Municipal Center for Disease Control and Prevention Ningbo 315000ZhejiangChina

With a global prevalence of 7.7 million,ischemic stroke(IS)is one of the leading causes of death and disability *** China,IS alone contributed to 69.6%of stroke events and accounted for 37.1%of the mortality/disability rate[1].IS is a complex disease that is known to be associated with various genetic variants and clinical and lifestyle risk factors[2].Genome-wide association studies(GWAS)provided evidence for the occurrence of more than 160 IS-associated single nucleotide polymorphisms(SNPs).In terms of clinical risk factors,patients with a history of chronic diseases like hypertension,dyslipidemia,and diabetes mellitus,display a higher risk of developing *** the various lifestyle components,leading a sedentary lifestyle,smoking,and having an unhealthy diet are known to be associated with the risk of ***,integration of various genetic,clinical,and lifestyle variables might prove to be highly beneficial in the prediction and prevention of IS at the individual level[3].

关键词： prevention mortality Impact

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Adaptive Extended Isogeometric Analysis for Steady-State Heat Transfer in Heterogeneous Media

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Computer Modeling in Engineering & Sciences 2021年第3期126卷 1315-1332页

作者： Weihua Fang Tiantang yu yin Yang Nanjing Automation Institute of Water Conservancy and Hydrology Ministry of Water ResourcesNanjing210012China Department of Engineering Mechanics Hohai UniversityNanjing211100China Lake Research Institute Hydraulic Research Institute of Jiangsu ProvinceNanjing210017China

Steady-state heat transfer problems in heterogeneous solid are simulated by developing an adaptive extended isogeometric analysis(XIGA)method based on locally refined non-uniforms rational B-splines(LR NURBS).In the XIGA,the LR NURBS,which have a simple local refinement algorithm and good description ability for complex geometries,are employed to represent the geometry and discretize the field variables;and some special enrichment functions are introduced into the approximation of temperature field,thus the computational mesh is independent of the material interfaces,which are described with the level *** to the approximation of temperature field,a temperature gradient recovery technique for heterogeneous media is proposed,and based on the Zienkiewicz–Zhu recovery technique a posteriori error estimator is defined to automatically identify the locally refined *** convergence and performance properties of the developed method are verified by using three numerical *** numerical results show that(1)The convergence speed of the adaptive local refinement is faster than that of the uniform global refinement;(2)The convergence rate of the high-order basis functions is faster than that of the low-order basis functions;and(3)The existing inclusions change the local distributions of the temperature,and the extreme values of the temperature gradients take place around the inclusion interfaces.

关键词： Heterogeneous media steady-state heat transfer adaptive XIGA LR NURBS heat dissipation

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Do Improvements of living standards lead to growth of obesity?Evidence from Chinese adults

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Journal of Integrative Agriculture 2019年第8期18卷 1740-1752页

作者： ZHAO yin-yu ZHENG Zhi-hao College of Economics and Management Northwest A&F University Yangling 712100 P.R.China College of Economics and Management China Agricultural University Beijing 100083 P.R.China

This study estimates the impacts of income on body mass indices(BMIs) of male and female adults from both urban and rural areas in China under the neoclassic theory of obesity, using China Health and Nutrition Survey data during 1991–*** of this study show that incomes has a significant inverted U-shaped impact on weight for both urban and rural males while having a negative effect on weight for urban females and positive effect on BMI for rural female, suggesting that further income growth is expected to lead to continuing growth of obesity for both urban and rural male adults as well as for rural female adults. Moreover, the strenuousness of physical activity, which is represented by types of jobs, significantly reduced the BMI for all adults except for urban females, implying that a decrease in the strenuousness of physical activity stemming from economic development and technological changes is an important factor leading to the growth of obesity for all adults and rural female adults.

关键词： income BMI obesity Chinese adults

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Low-Brightness Object Recognition Based on Deep Learning

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Computers, Materials & Continua 2024年第5期79卷 1757-1773页

作者： Shu-yin Chiang Ting-yu Lin Department of Information and Telecommunications Engineering Ming Chuan UniversityTaoyuan City333Taiwan

This research focuses on addressing the challenges associated with image detection in low-light environments,particularly by applying artificial intelligence techniques to machine vision and object recognition *** primary goal is to tackle issues related to recognizing objects with low brightness *** this study,the Intel RealSense Lidar Camera L515 is used to simultaneously capture color information and 16-bit depth information *** detection scenarios are categorized into normal brightness and low brightness *** the system determines a normal brightness environment,normal brightness images are recognized using deep learning *** low-brightness situations,three methods are proposed for *** first method is the SegmentationwithDepth image(SD)methodwhich involves segmenting the depth image,creating amask from the segmented depth image,mapping the obtained mask onto the true color(RGB)image to obtain a backgroundreduced RGB image,and recognizing the segmented *** second method is theHDVmethod(hue,depth,value)which combines RGB images converted to HSV images(hue,saturation,value)with depth images D to form HDV images for *** third method is the HSD(hue,saturation,depth)method which similarly combines RGB images converted to HSV images with depth images D to form HSD images for *** experimental results,in normal brightness environments,the average recognition rate obtained using image recognition methods is 91%.For low-brightness environments,using the SD method with original images for training and segmented images for recognition achieves an average recognition rate of over 82%.TheHDVmethod achieves an average recognition rate of over 70%,while the HSD method achieves an average recognition rate of over 84%.The HSD method allows for a quick and convenient low-light object recognition *** research outcome can be applied to nighttime surveillance systems or nighttime road safety systems

关键词： Low-brightness depth image image segmentation image recognition HDV HSD

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Stress fields caused by a dislocation in an anisotropic 3-layer system

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Science China(Physics,Mechanics & Astronomy) 2011年第3期54卷 542-551页

作者： WANG HuYi yin YiHui yu ShaoRong Institute of Structural Mechanics China Academy of Engineering Physics Mianyang 621900 China

We investigated the stress fields caused by a dislocation in an anisotropic 3-layer system. Based on the image method, the original 3-layer system is firstly decomposed into three infinite homogenous systems. The image dislocation densities used as unknowns are then strategically distributed in order to satisfy the boundary conditions. The resulting governing equations are singular Cauchy integral ones. Removing the singular terms yields non-linear Fredhom integral equations of the second kind. The obtained stress fields satisfy the boundary conditions, i.e., the traction free condition on the free surface and continuous conditions across the interfaces. Also, a comparison with previous results is made and good agreement is achieved. Numerical investigations show that under the plain strain condition, layer thickness and dislocation position play stronger roles in the stress fields than crystallographic orientation, and these effects more significantly affect the stress fields caused by an edge dislocation than by a screw dislocation.

关键词： stress field dislocation anisotropic 3-layer system

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Treatment of coke plant wastewater by A/O fixed biofilm system

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Science China Chemistry 2005年第5期48卷 489-496页

作者： yu Zhaoxiang QI Rong yin Yanjun Department of Chemistry Tongji University Shanghai 200092 China Department of Chemistry Tongji University Shanghai 200092 China Department of Chemistry Tongji University Shanghai 200092 China

Coke plant wastewater was treated by an anaerobic–aerobic (A/O) biofilm system. A lab-scale experiment, during which semi-soft media were packed in both the anaerobic and the aerobic reactors, was carried out. The influence parameters, such as HRT, C/N ratio, OLR, and the recycling flow rate on the performance of the system, were studied. The results showed that a sufficient carbon source was important to the performance of bio-degradation system. The COD removal rate increased from 64.15% to 83.28% by raising C/N in wastewater from 2.5 (no ex-ternal carbon source) to 5. But the effluent COD concentration was still a little higher than the discharge standard. In order to make it meet the discharge standard, a deep treatment, coagula-tion, was applied, which was proved as an effective method. Then the effluent COD concentra-tion can be brought to lower than 200 mg·L?1. The NH4-N removal rate in this system was sat-isfactory, being higher than 99%. In addition, it was almost not affected by both C/N ratio and coagulation treatment. The results show that the system is feasible to treat coke plant wastewa-ter.

关键词： coke plant wastewater, fixed biofilm, ammonia nitrogen, COD, HRT, OLR.

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Greenberger-Horne-Zeilinger test for multi-dimension and arbitrary time nodes entangled histories

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Science Bulletin 2017年第18期62卷 1235-1238页

作者： Junkai Dong Yi-Ming Chen da Xu Zhang-Qi yin Departrnent of Physics Cornell University New York 14853-2501 USA Fuzhou No. 1 High School Fuzhou 350108 China Department of Physics Tsinghua University Beijing 100871 China State Key Laboratory for Mesoscopic Physics and School of Physics Peking University Beijing 100871 China Center for Quantum Information Institute for Interdisciplinary Information Sciences Tsinghua University Beijing

Quantum entanglement,since proposed by Einstein,Podolsky and Rosen(EPR)[1]and further explored by Schr?dinger[2]in1935,has always been the focus of quantum physics *** EPR paradox revealed the conflict between quantum theory and local *** 30 years later,in 1964,Bell first came up with the prototype of a family of inequalities,which was later called Bell inequality[3,4],to express certain limitation that every local clas-

关键词：贝尔不等式 EPR悖论维度历史节点时间试验量子理论

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Effects of nitrogen application rate and hill density on rice yield and nitrogen utilization in sodic saline–alkaline paddy fields

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Journal of Integrative Agriculture 2021年第2期20卷 540-553页

作者： GUO Xiao-hong LAN yu-chen XU Ling-qi yin da-wei LI Hong-yu QIAN Yong-de ZHENG Gui-ping LU Yan-dong Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement/daqing Key Laboratory of Saline-alkaline Land Utilization and Improvement/College of Agriculture Heilongjiang Bayi Agricultural UniversityDaqing 163319P.R.China

Soil salinity and alkalinity can inhibit crop growth and reduce yield,and this has become a global environmental *** changes in nitrogen (N) application and hill density can improve rice yields in sodic saline–alkaline paddy fields and protect the *** investigated the interactive effects of N application rate and hill density on rice yield and N accumulation,translocation and utilization in two field experiments during 2018 and 2019 in sodic saline–alkaline paddy *** N application rates (0 (control),90,120,150,and 180 kg N ha^(-1) (N0–N4),respectively) and three hill densities(achieved by altering the distance between hills,in rows spaced 30 cm apart:16.5 cm (D1),13.3 cm (D2) and 10 cm (D3))were utilized in a split-plot design with three *** application rate and hill density significantly affected grain *** mathematical model of quadratic saturated D-optimal design showed that with an N application rate in the range of 0–180 kg N ha^(-1),the highest yield was obtained at 142.61 kg N ha^(-1) which matched with a planting density of 33.3×10^(4) ha^(-1).Higher grain yield was mainly attributed to the increase in panicles m^(–2).Nitrogen application rate and hill density significantly affected N accumulation in the aboveground parts of rice plants and showed a highly significant positive correlation with grain yield at *** full heading to maturity,the average N loss rate of the aboveground parts of rice plants in N4 was 70.21% higher than that of *** is one of the reasons why the yield of N4 treatment is lower than that of the N3 *** accumulation rates in the aboveground parts under treatment N3 (150 kg N ha^(-1)) were 81.68 and 106.07% higher in 2018 and 2019,respectively,than those in the *** N translocation and N translocation contribution rates increased with the increase in the N application rate and hill density,whereas N productivity of dry matter and grain first increased

关键词： rice yield saline–alkaline soil nitrogen accumulation paddy field Songnen Plain

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