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系统仿真学报 2009年第23期21卷 7511-7514页

作者：李纲李辉四川大学计算机学院成都610064 川北医学院南充637007 四川大学视觉合成重点学科实验室成都610064

云的建模和绘制一直是计算机图形领域研究的挑战之一。提出了一种全在GPU上的三维云模拟和渲染的框架,从面片生成、排序和渲染全在GPU内完成。云建模采用编制的云模型编辑器对云的形状和颜色等属性进行编辑,通过面片组合生成三维云几何... 详细信息

云的建模和绘制一直是计算机图形领域研究的挑战之一。提出了一种全在GPU上的三维云模拟和渲染的框架,从面片生成、排序和渲染全在GPU内完成。云建模采用编制的云模型编辑器对云的形状和颜色等属性进行编辑,通过面片组合生成三维云几何模型。云的渲染方面,采用GPU上实现的bitonic排序方法对组成三维云的面片进行排序以实现正确的alpha混合;并将图形引擎特性-几何着色器引入到GPU上的三维云渲染中,实现三维云几何形体在GPU中的生成。开发了三维云生成和渲染模块,实现了可视化仿真应用中大规模和实时渲染的三维云仿真模块。

关键词：云 GPU 实时渲染视景仿真

Achievements and challenges of primate conservation in china

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Zoological Research(Diversity and Conservation) 2024年第1期1卷 66-74页

作者： Bao-Guo li He Zhang Ming li Xue-Long Jiang Peng-Fei Fan Jiang Zhou Song-Tao Guo Xiao-Guang Qi Jin-hua li Ji-Qi Lu Dong-Po Xia liang-Wei Cui Zuo-Fu Xiang Qi-Hai Zhou Zhi-Pang huang Cheng-Ming huang Wen Xiao hui-Jian hu Zhi-Xin Zhou Ming-Yong Chen Da-Yong li Peng-Lai Fan Yin Yang Ru-liang Pan Shaanxi Key Laboratory for Animal Conservation College of Life SciencesNorthwest UniversityXi’anShaanxi 710069China Jiangxi Provincial Key Laboratory of Conservation Biology College of ForestryJiangxi Agricultural UniversityNanchangJiangxi 330045China Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650201China School of life sciences Sun Yat-sen UniversityGuangzhouGuangdong 510275China School of Karst science Guizhou Normal UniversityGuiyangGuizhou 550025China International Collaborative Research Center for huangshan Biodiversity and Tibetan Macaque Behavioral Ecology Anhui UniversityHefeiAnhui 230601China Institute of Biodiversity and Ecology Zhengzhou UniversityZhengzhouHenan 450001China Key Laboratory for Conserving Wildlife with Small Populations in Yunnan Southwest Forestry UniversityKunmingYunnan 650224China college of life sciences and Technology Central South University of Forestry and TechnologyChangshaHunan 410004China Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Ministry of Education) Guangxi Normal UniversityGuilinGuangxi 541004China International Centre of Biodiversity and Primate Conservation Centre Dali UniversityDaliYunnan 671003China Guangdong Key Laboratory of Animal Conservation and Resource Utilization Institute of ZoologyGuangdong Academy of SciencesGuangzhouGuangdong 510663China School of life sciences Yunnan UniversityKunmingYunnan 650500China Key Laboratory of Southwest china Wildlife Resources Conservation(Ministry of Education) China West Normal UniversityNanchongSichuan 637001China Institute of International Rivers and Eco-security Yunnan UniversityKunmingYunnan 650500China School of human sciences The University of Western AustraliaPerthWA 6009Australia

The dual impact of climate change and human activities has precipitated a sharp decline in primate biodiversity *** is home to the most diverse primate species in the Northern hemisphere,which face severe ecological threats due to the expansion of modern agriculture,extensive exploitation and consumption of natural resources,and excessive land development during its transition from an agricultural to a modern *** response,china has implemented various ecological conservation measures,including habitat restoration and *** efforts have made substantial strides in biodiversity conservation,with certain regions witnessing an increase in primate *** the current study,we conducted a systematic review of historical documents and field research data related to Chinese primates,evaluating the endangered status of primate species in *** improvements in the habitats of most primate species and some population growth,many species still face severe threats,including declining and small *** such as the Myanmar snub-nosed monkey(Rhinopithecus strykeri),eastern black crested gibbon(Nomascus nasutus),and Hainan gibbon(***)remain particularly vulnerable due to their limited distribution ranges and extremely small *** scientific data,fragmented information,and not enough studies in conservation biology further compound the ***,there is a notable lack of detailed population monitoring data for species such as the Bengal slow loris(Nycticebus bengalensis),pygmy slow loris(***),Indochinese gray langur(Trachypithecus crepusculus),Shortridge’s langur(***),and capped langur(***),which hinders the development of practical and targeted conservation management ***,for national biodiversity conservation,there is an urgent need for specialized primate surveys,enhancing habitat protection and restoration,and increasing focus on cross-border conse

关键词： Primates Biodiversity Habitat fragmentation Habitat restoration Conservation strategies

Mapping of Least ρ-Dirichlet Energy between Doubly Connected Riemann Surfaces

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Acta Mathematica Sinica,English Series 2020年第6期36卷 663-672页

作者： li ZHANG Sheng Jin huO hui GUO Xiao Gao FENG college of Mathematics and Information China West Normal UniversityNanchong 637002P.R.China Department of Mathematics Tianjin Polytechnic UniversityTianjin 300387P.R.China college of Mathematics and Statistics Shenzhen UniversityShenzhen 518060P.R.China

In this note,we consider the mappings h:X→Y between doubly connected Riemann surfaces having leastρ-Dirichlet *** a pair of doubly connected Riemann surfaces,in which X has finite conformal modulus,we establish the following principle:A mapping h in the class H2(X,Y)of strong limits of homeomorphisms in Sobolev space W1,2(X,Y)isρ-energy-minimal if and only if its Hopf-differential is analytic in X and real along?*** improves and extends the result of Iwaniec et al.(see Theorem 1.4 in[***.,209,401–453(2013)]).Furthermore,we give an application of the ***ρ-energy minimal diffeomorphism isρ-harmonic,however,we give a 1/|w|~2-harmonic diffemorphism which is not 1/|w|~2-energy minimal *** last,we investigate the necessary and sufficient conditions for the existence of 1/|w|~2-harmonic mapping from doubly connected domainΩto the circular annulus A(1,R).

关键词： ρ-Dirichlet energy Hopf-differential ρ-harmonic mapping ρ-Nitsche conjecture

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen hua-Xing Chen huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing Beijing Computational science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing normal university Beijing Brown university ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china normal university WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced science and Technology Beijing china Institute of Atomic Energy Beijing china Jiliang university HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china university of Geosciences Beijing china university of Geosciences WuhanHubei china university of Mining and Technology XuzhouJiangsu china west normal university NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok city university of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhu&CNRS/INP) Marseille Dalian Minzu university DalianLiaoning Dalian university of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East china university Of science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

异构对等分布式存储中的DHitchhiker码

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电子学报 2021年第6期49卷 1151-1158页

作者：胡金平李贵洋周悦李慧江小玉韩鸿宇四川师范大学计算机科学学院四川成都610101

具有高可用性和安全性的去中心化存储因其应用的相同参数低码率RS(Reed-Solomon codes)码存在修复带宽较高的问题.对此,提出一种基于可信度的低修复带宽DHitchhiker码.首先将Hitchhiker码的第一子条带中的数据节点和部分校验节点捎带在... 详细信息

具有高可用性和安全性的去中心化存储因其应用的相同参数低码率RS(Reed-Solomon codes)码存在修复带宽较高的问题.对此,提出一种基于可信度的低修复带宽DHitchhiker码.首先将Hitchhiker码的第一子条带中的数据节点和部分校验节点捎带在余下的校验节点的第二个子条带上;接着将节点分类,让高可信节点存储余下的校验节点,低可信节点存储数据节点和部分校验节点,并让不同类型的节点采用不同的修复策略;最后理论结合实验证明,在修复低可信节点时,DHitchhiker可降低约25%的修复带宽;在整体上,未分类存放的DHitchhiker码可降低约0.5%的修复带宽,基于可信度的DHitchhiker码可降低约1%的修复带宽和2.5%~3.3%的修复时间.

关键词： MDS码 RS码可信度去中心化存储 Hitchhiker码

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大数据环境下关于高校资助体系构建的思考

电脑知识与技术 2017年第3期13卷 254-255页

作者：彭宇胡丽慧西华师范大学计算机学院四川南充637002

目前,高校资助一般包括奖、免、助、贷、补等形式,资助工作形式多样、纷繁复杂,且资助工作中存在着贫困认定草率、国家助学贷款缺乏诚信、对家庭经济困难学生资助途径较窄、缺乏监督回访机制等问题。资助体系的不够完善导致资助工作中... 详细信息

目前,高校资助一般包括奖、免、助、贷、补等形式,资助工作形式多样、纷繁复杂,且资助工作中存在着贫困认定草率、国家助学贷款缺乏诚信、对家庭经济困难学生资助途径较窄、缺乏监督回访机制等问题。资助体系的不够完善导致资助工作中很多环节脱节的现象,因此建立健全依托在互联网加大时代背景下的资助体系是完全必要的。

关键词：互联网大数据高校资助体系贫困生

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基于重叠社区发现的社会网络推荐算法研究

南京师大学报（自然科学版） 2018年第3期41卷 35-41页

作者：胡云张舒佘侃侃李慧施臖南京中医药大学信息技术学院江苏南京210023 淮海工学院商学院江苏连云港222005 淮海工学院计算机工程学院江苏连云港222005 江苏省海洋资源开发研究院江苏连云港222005

协同过滤算法已成为用来为用户提供个性化服务以处理海量信息最常用的方法之一.本文提出一种基于重叠社区发现的社会网络推荐算法,该算法同时考虑了群组用户的兴趣以及他们复杂的内部关系,通过将重叠社区发现算法和基于模型的社会推荐... 详细信息

协同过滤算法已成为用来为用户提供个性化服务以处理海量信息最常用的方法之一.本文提出一种基于重叠社区发现的社会网络推荐算法,该算法同时考虑了群组用户的兴趣以及他们复杂的内部关系,通过将重叠社区发现算法和基于模型的社会推荐算法进行创新融合,以实现重叠社区的发现、建立,和基于社区的智能推荐.基于开放数据集,本文设计了一系列相关实验以验证算法的有效性和准确性.实验结果表明本文提出的算法可以实现高效且准确的社会网络推荐.

关键词：社会网络推荐重叠社区检测

Advances in nuclear detection and readout techniques

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Nuclear science and Techniques 2023年第12期34卷 281-358页

作者： Rui He Xiao‑Yang Niu Yi Wang Hong‑Wei liang Hong‑Bang liu Ye Tian Hong‑lin Zhang Chao‑Jie Zou Zhi‑Yi liu Yun‑Long Zhang Hai‑Bo Yang Ju huang Hong‑Kai Wang Wei‑Jia Han Bei Cao Gang Chen Cong Dai li‑Min Duan Rui‑Rui Fan Fang‑Fa Fu Jian‑hua Guo Dong Han Wei Jiang Xian‑Qin li Xin li Zhuo‑Dai li Yu‑Tie liang Shun liao De‑Xu lin Cheng‑Ming liu Guo‑Rui liu Jun‑Tao liu Ze Long Meng‑Chen Niu Hao Qiu hu Ran Xiang‑Ming Sun Bo‑Tan Wang Jia Wang Jin‑Xiang Wang Qi‑lin Wang Yong‑Sheng Wang Xiao‑Chuan Xia Hao‑Qing Xie He‑Run Yang Hong Yin Hong Yuan Chun‑hui Zhang Rui‑Guang Zhao Ran Zheng Cheng‑Xin Zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear science and Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy science and Technology Guangdong Laboratory Huizhou 516000China Key Laboratory of Particle and Radiation Imaging Department of Engineering PhysicsTsinghua UniversityBeijing 100084China School of Integrated Circuits Dalian University of TechnologyDalian 116020China Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China School of Nuclear science and Technology Lanzhou UniversityLanzhou 730000China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Electronic Engineering School Heilongjiang UniversityHarbin 150080China Spallation Neutron Source science Center Dongguan 523803China Micro‑electronic Department Harbin Institute of TechnologyHarbin 150001China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210034China liaoning Academy of Materials Shenyang 110167China Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly School of Mathematics and Physics Chengdu University of TechnologyChengdu 620035China PLAC Key Laboratory of Quark and Lepton Physics(MOE)Central China Normal UniversityWuhan 430079China School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710129China State Key Lab of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China School of computer science Northwestern Polytechnical UniversityXi’an 710129China

“A Craftsman Must Sharpen His Tools to Do His Job,”said *** detection and readout techniques are the foundation of particle physics,nuclear physics,and particle astrophysics to reveal the nature of the ***,they are being increasingly used in other disciplines like nuclear power generation,life sciences,environmental sciences,medical sciences,*** article reviews the short history,recent development,and trend of nuclear detection and readout techniques,covering Semiconductor Detector,Gaseous Detector,Scintillation Detector,Cherenkov Detector,Transition Radiation Detector,and Readout *** explaining the principle and using examples,we hope to help the interested reader underst and this research field and bring exciting information to the community.

关键词： Silicon detector Wide bandgap detector Time projection chamber(TPC) Multigap resistive plate chamber detector(MRPC) Scintillation detector Calorimeters Cherenkov detector Transition radiation detector Artificial intelligence Trigger-less readout

适于移动终端字符识别环境的自适应多阈值二值化方法

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计算机科学 2019年第8期46卷 315-320页

作者：朱德利杨德刚胡蓉万辉重庆师范大学计算机与信息科学学院重庆401331 西南大学计算机与信息科学学院重庆400715

为了解决移动终端字符识别应用中光照不均匀、环境不可控而导致的图像二值化效果不佳的问题,提出一种基于积分图快速计算的多阈值自适应二值化方法。该方法首先以待求点为中心设置一个特定尺寸的滑窗,计算该滑窗内所有点的均值,再根据... 详细信息

为了解决移动终端字符识别应用中光照不均匀、环境不可控而导致的图像二值化效果不佳的问题,提出一种基于积分图快速计算的多阈值自适应二值化方法。该方法首先以待求点为中心设置一个特定尺寸的滑窗,计算该滑窗内所有点的均值,再根据高斯函数加权计算当前滑窗的两个前置滑窗的均值。设置均值松弛因子来衡量当前点的光照情况。像素点的松弛阈值依据该点的松弛因子和光照情况的评价综合计算获得。以Lenovo ZUK Z2 Pro作为实验设备,在Android操作系统中编写程序,进行文字识别精度的测试。所提算法对前景划分的平均召回率为95.5%,平均准确率为91%。调用Tesseract 4.0的原生OCR识别引擎进行验证,在不规则阴影、多层次光照、线性光线变化等环境下,算法的文字识别准确率分别为96.8%,98.2%和93.2%,高于其他预处理算法。所提算法具有较强的鲁棒性和自适应能力,能满足移动终端字符识别应用的图像预处理要求。

关键词：移动终端图像处理积分图像自适应二值化字符识别