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Highly transparent anti-reflection coating enhances the underwater efficiency and stability of perovskite solar modules

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Nano Research 2024年第9期17卷 8126-8133页

作者： Feng Qian Shihao yuan Ting Zhang Lei wang Xiaobo Li Hualin Zheng Qien Xu Zhi David Chen Shibin Li School of Optoelectronic science and Engineering University of Electronic Science and Technology of ChinaChengdu 610054China department of Electrical and computer Engineering and Center for Nanoscale science and Engineering University of KentuckyLexingtonKentucky 40506USA

Perovskite solar cells have shown great potential in the field of underwater solar cells due to their excellent optoelectronic properties;however,their underwater performance and stability still hinder their practical *** this research,a 1H,1H,2H,2H-heptadecafluorodecyl acrylate(HFDA)anti-reflection coating(ARC)was introduced as a high-transparent material for encapsulating perovskite solar modules(PSMs).Optical characterization results revealed that HFDA can effectively reduce reflection of light below 800 nm,aiding in the absorption of light within this wavelength range by underwater solar ***,a remarkable efficiency of 14.65%was achieved even at a water depth of 50 ***,the concentration of Pb^(2+)for HFDA-encapsulated film is significantly reduced from 186 to 16.5 ppb after being immersed in water for 3.7 ***,the encapsulated PSMs still remained above 80%of their initial efficiency after continuous underwater illumination for 400 ***,being exposed to air,the encapsulated PSMs maintained 94%of their original efficiency after 1000 h light *** highly transparent ARC shows great potentials in enhancing the stability of perovskite devices,applicable not only to underwater cells but also extendable to land-based photovoltaic devices.

关键词： underwater photovoltaics perovskite solar modules anti-reflection coating underwater stability

A formally verified transformation to unify multiple nested clocks for a Lustre-like language

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science china(Information sciences) 2019年第1期62卷 208-210页

作者： Gang SHI Yucheng ZHANG Shu SHANG shengyuan wang yuan {3. Pen-Chung YEW department of computer science and {3. Tsinghua University department of computer science and Engineering University of Minnesota

Multiple nested clocks is a major language feature in synchronous data-flow languages such as Lustre [1]. To build a formally verified compiler for such a language, it is a common practice to compile the source program to a C-like program first before compiling it to low-level machine-dependent code using a formally verified backend compiler

关键词： A formally verified transformation to unify multiple nested clocks for a Lustre-like language cycle

一种基于Renew的有色网元对象协议的设计与实现

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系统仿真学报 2008年第S2期20卷 63-68页

作者：郭胜基齐大伟林明王生原董渊清华大学计算机科学与技术系北京100084

在Petri网模拟工具Renew的基础上,设计和实现了相应的元对象协议,从四个方面大大增加了Renew的建模能力:简化基级网模型;获取基级网运行信息;动态改变基级网结构以及控制基极网的运行。文章最后以银行家算法的建模作为例子,说明如何用... 详细信息

在Petri网模拟工具Renew的基础上,设计和实现了相应的元对象协议,从四个方面大大增加了Renew的建模能力:简化基级网模型;获取基级网运行信息;动态改变基级网结构以及控制基极网的运行。文章最后以银行家算法的建模作为例子,说明如何用元对象协议控制基极网的运行,以避免银行家算法中的核心问题:死锁,从而验证了元对象协议的强大功能。

关键词： Petri网元对象协议 Renew 银行家算法

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Understanding Centrality-Lethality Rule in Yeast Protein-Protein Interaction Network by Topological Property

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Understanding Centrality-Lethality Rule in Yeast Protein-Pro...

Research on the Willingness to Accept Compensation and Compensation Sharing of Returning Land for Farming to Forestry in Zhangjiakou and Chengde Region

2011 6th IEEE Joint International Information technology and Artificial Intelligence Conference(ITAIC 2011)

作者： dong Yun-yuan 1 wang Zheng-hua 1 LIU Qi-jun 2 wang Yong-xian 1 1.School of computer National university of Defense technology Changsha china 2.department of Chemistry and Biology School of science National university of Defense technology Changsha china

One of the most important problems in biology is to discover the relationship between topological properties and functional features of proteins in Protein-Protein Interaction（PPI） *** centrality-lethality rule reveals that hub proteins tend to be more essential than non-hub *** hub proteins tend to be more essential? Here,we classified hub proteins into two types:essential hub and nonessential *** found that essential hubs are more important to the survival of the cell and they can be called intra-modular hubs while nonessential hubs tend to be inter-modular hubs.

关键词： protein-protein interaction network essential hub nonessential hub centrality

来源： cnki会议评论

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Meteorological and Environmental Research 2011年第5期2卷 41-44页

作者： wang Yan-xia1,CHEN Xu-dong1,ZHANG Su-juan1,BAI Jie2,ZHANG Yi-wen3.1.Institute of Geographical science,Hebei Academy of science,Shijiazhuang 050011,china 2.computer department,Hebei Vocational College of Politics and Law,Shijiazhuang 050081,china 3.College of Resources and Environment science,Hebei Normal university,Hebei Key Laboratory of Environmental Change and Ecological Construction,Shijiazhuang 050016,china

[Objective] The aim was to study the willingness to accept compensation and compensation sharing of returning land for farming to forestry in Zhangjiakou and Chengde region.[Method] Based on the investigation of farmers’ willingness to accept ecological compensation in Zhangjiakou and Chengde region,farmers’ willingness to accept compensation was quantized,and the calculation model of sharing rate of ecological compensation was established,finally the sharing rate of ecological compensation was calculated choosing water supply quantity as reference.[Result] Farmers’ willingness to accept compensation in Zhangjiakou and Chengde region was 2 740.5 yuan/(hm2·a),and returned farmland area was 429 700 hm2 in 2008,so the willingness to accept ecological compensation was up to 1.178 billion yuan/*** addition,the ecological compensation sharing rate of government was 3..60% in Beijing,42.75% in Tianjing and 19.64% in Tangshan,and their ecological compensation funds were 443.504 and 23. million yuan,respectively.[Conclusion] The study could provide important foundation for the establishment of ecological compensation standard and implementation of ecological compensation in Zhangjiakou and Chengde region.

关键词： Zhangjiakou Chengde Ecological compensation Willingness to accept compensation Sharing rate of compensation china

Distributed Game-Theoretical D2D-Enabled Task Offloading in Mobile Edge Computing

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Journal of computer science & technology 2022年第4期37卷 919-941页

作者： En wang Han wang Peng-Min dong {3.-Bo Xu Yong-Jian Yang department of computer science and {3. Jilin UniversityChangchun 130012China department of Software Jilin UniversityChangchun 130012China

Mobile Edge Computing(MEC)has been envisioned as a promising distributed computing paradigm where mobile users offload their tasks to edge nodes to decrease the cost of energy and ***,most of the existing studies only consider the congestion of wireless channels as a crucial factor affecting the strategy-making process,while ignoring the impact of offloading among edge *** addition,centralized task offloading strategies result in enormous computation complexity in center *** this line,we take both the congestion of wireless channels and the offloading among multiple edge nodes into consideration to enrich users'offloading strategies and propose the Parallel User Selection Algorithm(PUS)and Single User Selection Algorithm(SUS)to substantially accelerate the *** practically,we extend the users'offloading strategies to take into account idle devices and cloud services,which considers the potential computing resources at the ***,we construct a potential game in which each user selfishly seeks an optimal strategy to minimize its cost of latency and energy based on acceptable latency,and find the potential function to prove the existence of Nash equilibrium(NE).Additionally,we update PUS to accelerate its convergence and illustrate its performance through the experimental results of three real datasets,and the updated PUS effectively decreases the total cost and reaches Nash equilibrium.

关键词： computation offloading potential game Nash equilibrium device-to-device(D2D) acceptable latency

Research on the reconstruction of fast and accurate AFM probe model

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Chinese science Bulletin 2010年第24期55卷 2750-2754页

作者： yuan Shuai dong ZaiLi MIAO Lei XI Ning wang YueChao State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Shenyang 110016 China Graduate university of Chinese Academy of sciences Beijing 100049 China department of Electrical and computer Engineering Michigan State University USA

The AFM image will be distorted due to the tip-broadening effect. It may be mathematically represented as the effect of the tip's convolution on the real image. As a result, the true geometry of the sample surface can not be obtained. If the tip shape could be known accurately, such distortion can be eliminated with the adoption of disconvolution operation. It is of practical significance in the accurate reconstruction of the AFM image. Among the current tip modeling algorithms, the blind tip estimation algorithm based on mathematical morphology is widely applied. However, it takes much time and has difficulties in defining the optimal noise threshold. In view of the above problems, this paper proposes a new blind tip evaluation method to accelerate the speed of blind tip modeling calculation and realize the accurate reconstruction of the AFM image. The simulation and the experimental results demonstrate the feasibility and effectiveness of the above research method.

关键词： AFM探针原子力显微镜数学形态学图像效果模型几何形状精确重建建模算法

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Noninvasive Tracking of Every Individual in Unmarked Mouse Groups Using Multi-Camera Fusion and Deep Learning

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Neuroscience Bulletin 2023年第6期39卷 893-910页

作者： Feng Su Yangzhen wang Mengping Wei Chong wang Shaoli wang Lei Yang Jianmin Li Peijiang {3. dong-Gen Luo Chen Zhang department of Neurobiology School of Basic Medical SciencesBeijing Key Laboratory of Neural Regeneration and RepairCapital Medical UniversityBeijing100069China Chinese Institute for Brain Research Beijing102206China State Key Laboratory of Translational Medicine and Innovative Drug Development Nanjing210000China Peking-tsinghua Center for Life sciences Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing100871China School of Life sciences Tsinghua UniversityBeijing100084China School of Biological science and Medical Engineering Beihang UniversityBeijing100191China The Key Laboratory of Developmental Genes and Human Disease Institute of Life SciencesSoutheast UniversityNanjing210096JiangsuChina Institute for Artificial Intelligence the State Key Laboratory of Intelligence Technology and SystemsBeijing National Research Center for Information Science and TechnologyDepartment of Computer Science and TechnologyTsinghua UniversityBeijing100084China School of Mechanical Engineering and Automation Beihang UniversityBeijing100191China

Accurate and efficient methods for identifying and tracking each animal in a group are needed to study complex behaviors and social *** tracking methods(e.g.,marking each animal with dye or surgically implanting microchips)can be invasive and may have an impact on the social behavior being *** overcome these shortcomings,video-based methods for tracking unmarked animals,such as fruit flies and zebrafish,have been ***,tracking individual mice in a group remains a challenging problem because of their flexible body and complicated interaction *** this study,we report the development of a multi-object tracker for mice that uses the Faster region-based convolutional neural network(R-CNN)deep learning algorithm with geometric transformations in combination with multi-camera/multi-image fusion *** system successfully tracked every individual in groups of unmarked mice and was applied to investigate chasing *** proposed system constitutes a step forward in the noninvasive tracking of individual mice engaged in social behavior.

关键词： Noninvasive tracking Deep learning Multi-camera Mouse group Social interaction

Systematic analyses of glutamine and glutamate metabolisms across different cancer types

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Chinese Journal of Cancer 2017年第12期36卷 712-725页

作者： yuan Tian Wei Du Sha Cao Yue Wu Ning dong Yan wang Ying Xu College of computer science and technology Jilin UniversityChangchun 130012JilinP.R.China The First Hospital Jilin UniversityChangchun 130012JilinP.R.China College of Public Health Jilin UniversityChangchun 130012JilinP.R.China Computational Systems Biology Lab Department of Biochemistry and Molecular Biology and Institute of BioinformaticsUniversity of Georgia120 E Green StAthensGA 30602USA

Background: Glutamine and glutamate are known to play important roles in cancer biology. However, no detailed information is available in terms of their levels of involvement in various biological processes across different cancer types, whereas such knowledge could be critical for understanding the distinct characteristics of different cancer types. Our computational study aimed to examine the functional roles of glutamine and glutamate across different cancer ***: We conducted a comparative analysis of gene expression data of cancer tissues versus normal control tissues of 11 cancer types to understand glutamine and glutamate metabolisms in cancer. Specifically, we developed a linear regression model to assess differential contributions by glutamine and/or glutamate to each of seven biological processes in cancer versus control ***: While our computational predictions were consistent with some of the previous observations, multiple novel predictions were made:(1) glutamine is generally not involved in purine synthesis in cancer except for breast cancer, and is similarly not involved in pyridine synthesis except for kidney cancer;(2) glutamine is generally not involved in ATP production in cancer;(3. glutamine's contribution to nucleotide synthesis is minimal if any in cancer;(4) glutamine is not involved in asparagine synthesis in cancer except for bladder and lung cancers; and(5) glutamate does not contribute to serine synthesis except for bladder ***: We comprehensively predicted the roles of glutamine and glutamate metabolisms in selected metabolic pathways in cancer tissues versus control tissues, which may lead to novel approaches to therapeutic development targeted at glutamine and/or glutamate metabolism. However, our predictions need further functional validation.

关键词： Glutamine metabolism Glutamate metabolism Nucleotide synthesis Lipid synthesis Uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) metabolism

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