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Research on error accumulation control of three-dimensional adjustment with offset constraint

Radiation Detection Technology and Methods 2022年第4期6卷 569-576页

作者： Wang Xiaolong Kang Ling Dong Lan Li Bo Men Lingling Luo Tao Wang Tong Liang Jing He Zhenqiang Ke Zhiyong Ma Na Lu Shang Han yuanying Yan Luping zhang Luyan Liu Xiaoyang Yan Haoyue Li Chunhua Wu Lei Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China University of Chinese Academy of Sciences Beijing 100049China

Background Currently,laser tracker is the primary instrument used to carry out three-dimensional position measurement in accelerator ***,three-dimensional measuring data processed by three-dimensional adjustment are more rigorous,however,error accumulation is found in *** In order to control error accumulation and further improve the measurement accuracy of accelerator alignment,this research introduces the laser alignment system into the activity of measurement and data *** A measurement scheme combining laser tracker and laser alignment system is *** construct the constraint condition,the offset values from the measuring points to the laser straight-line datum were *** carry out the three-dimensional adjustment with offset constraint,the laser tracker observations were *** A three-dimensional adjustment function model of laser tracker observations is *** construction method of the constraint equation is researched,and the calculation formulas of the three-dimensional adjustment with offset constraint are derived.A 200 m linac tunnel control network is designed,using simulation measurement method,the measuring data of laser tracker and the offset values from the measuring points to the laser straight-line datum were *** simulated data are calculated by the method given in this paper and the result is *** Simulation result shows introducing the laser alignment system into laser tracker measurement and applying the three-dimensional adjustment with offset constraint can effectively suppress the error accumulation caused by long distance move station measurement.

关键词： Accelerator alignment Error accumulation Laser alignment system Laser tracker Three-dimensional adjustment Offset constraints Simulation measurement

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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

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基于有限元的有轨电车弹性车轮模态分析

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城市轨道交通研究 2020年第S1期23卷 104-107页

作者：吕元颖张济民上海市轨道交通设备发展有限公司上海200245 上海有轨电车工程技术研究中心上海200125 同济大学铁道与城市轨道交通研究院上海201804

有轨电车通常采用结构中间嵌有橡胶块的弹性车轮,其在降低车内外噪声及减小车辆结构件的振动与噪声等方面都具有良好的效果。在弹性车轮建模方法及对橡胶材料本构模型研究的基础上,建立了相同直径的有轨电车弹性车轮和刚性车轮有限元模... 详细信息

有轨电车通常采用结构中间嵌有橡胶块的弹性车轮,其在降低车内外噪声及减小车辆结构件的振动与噪声等方面都具有良好的效果。在弹性车轮建模方法及对橡胶材料本构模型研究的基础上,建立了相同直径的有轨电车弹性车轮和刚性车轮有限元模型,并采用适用于大型对称特征值问题的Block Lanczos方法对这两种车轮进行模态分析。结果表明,在相同模态振型处,弹性车轮的模态频率较刚性车轮的模态频率低。弹性车轮具有较好的减振降噪和高频隔振能力。

关键词：有轨电车弹性车轮橡胶块模态分析

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3GPP LTE/WLAN无线融合技术研究进展

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电讯技术 2017年第9期57卷 1092-1098页

作者：施苑英张伽俐西安邮电大学通信与信息工程学院西安710121

总结了4种在无线侧实现长期演进(LTE)系统与无线局域网(WLAN)相互融合的技术方案。在分析传统的核心网融合方案不足之处的基础上,重点介绍了无线融合在3GPP R12和R13阶段的研究进展和标准化情况,讨论了各方案对终端、演进型节点B(e Node... 详细信息

总结了4种在无线侧实现长期演进(LTE)系统与无线局域网(WLAN)相互融合的技术方案。在分析传统的核心网融合方案不足之处的基础上,重点介绍了无线融合在3GPP R12和R13阶段的研究进展和标准化情况,讨论了各方案对终端、演进型节点B(e Node B)和WLAN的影响,综合对比了每种方案的特征、优缺点及应用场景,为运营商部署LTE/WLAN融合网络提供了思路。

关键词：长期演进无线局域网无线融合互操作聚合

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朝鲜蓟茎叶副产物青贮过程中多酚及其功能活性的研究

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中国食品学报 2020年第2期20卷 263-270页

作者：戴倩倩樊雨梅张晓旭倪元颖马丽艳中国农业大学食品科学与营养工程学院北京100083 天津科技大学食品工程与生物技术学院天津300457

朝鲜蓟是一种具有保肝、抗癌、抗氧化、抗菌等活性的蔬菜,其茎叶等副产物也具有一定的生理活性,然而其含水量大、易腐,难以实现精深加工。本研究采用低能耗的青贮方式贮藏朝鲜蓟茎叶副产物,探究青贮期间其多酚类功能成分及抗氧化、抑制... 详细信息

朝鲜蓟是一种具有保肝、抗癌、抗氧化、抗菌等活性的蔬菜,其茎叶等副产物也具有一定的生理活性,然而其含水量大、易腐,难以实现精深加工。本研究采用低能耗的青贮方式贮藏朝鲜蓟茎叶副产物,探究青贮期间其多酚类功能成分及抗氧化、抑制α-葡萄糖苷酶等生理活性的变化。采用HPLC-QQQ-MS检测单体酚的变化,用福林酚法测定其青贮期间总酚含量的差异,以抗氧化能力及抑制α-葡萄糖苷酶作为功能活性指标,对朝鲜蓟副产物青贮期间多酚的功能活性进行分析。结果表明:青贮能较好地保存朝藓蓟茎叶副产物中的咖啡酰奎宁酸、芦丁和山奈酚-3-O-葡萄糖苷,其总酚保留率达96.8%。对朝鲜蓟多酚活性的研究表明,青贮较好地维持了朝鲜蓟多酚粗提物的抗氧化活性,朝鲜蓟多酚对α-葡萄糖苷酶的抑制作用显著,较好地保留了朝鲜蓟茎叶副产物中的多酚成分,且不破坏其抗氧化及抑制α-葡萄糖苷酶的生理活性,是一种低能耗、高效的朝鲜蓟茎叶副产物保存方式,具有推广潜力。

关键词：朝鲜蓟副产物青贮多酚功能活性

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14.4% Efficiency All-Polymer Solar Cell with Broad Absorption and Low Energy Loss Enabled by a Novel Polymer Acceptor

14.4% Efficiency All-Polymer Solar Cell with Broad Absorptio...

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第七届新型太阳能电池材料科学与技术学术研讨会

作者： Tao Jia Jiabin zhang Wenkai Zhong yuanying Liang Kai zhang Sheng Dong Lei Ying Feng Liu Xiaohui Wang Fei Huang Yong Cao South China University of Technology Shanghai Jiao Tong University

All-polymer solar cells(All-PSCs) offer several distinct merits including superior thermal stability and ***,we report a novel polymer acceptor PJ1 that exhibits a narrow band gap around 1.4 eV and a high extinction coefficient about 1.39×10 *** PJ1 is blended with donor polymer PBDB-T,all-PSC with a record power conversion efficiency(PCE) of 14.4% is achieved,which is mainly attributed to the broad absorption,efficient charge separation and collection,and low energy *** addition,all-PSC based on PJ1 demonstrate much better thermal stability than the control device based on small molecule acceptor(TTPBT-IC),as evidenced by the insignificant morphology change of PBDB-T:PJ1 versus excessive phase separation of PBDB-T:TTPBT-IC when annealed at 150 ℃.Of particular interest is that the all-PSCs based on PBDB-T:PJ1 can retain high PCEs even when the thickness of photoactive layer is increased over 300 nm(PCE of 12.1%) or the device area is enlarged to 1 cm(PCE of 13.0%).

关键词： all-polymer solar cell polymer acceptor high efficiency stability

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Monitoring of Avian Influenza Virus and Newcastle Disease Virus in Suichuan Region of Jiangxi Province

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Animal Husbandry and Feed Science 2016年第4期8卷 199-201页

作者： Geng Haidong Jin Hongmei zhang Yanjun zhang Xiaolin zhang Jiajie Li Xiang Zhou Changyu Ding yuanying Gao Guangyu Wang Zhuole Qiao Dan Li Yinxue Zhai Xiwen Hua Yuping zhang Guogang Chai Hongliang College of Wildlife Resource of Northeast Forestry University Haerbin 150040 China Wildlife Endemic Disease Monitoring Station of State Forestry Bureau Shenyang 110034 China China Wildlife Conservation Association Qinhuangdao Wildlife Rescue Center Qinhuangdao 066100 China National Bird Banding Center of China Institute of Forest Ecology and Environment & Protection of Chinese Academy of Forestry Sciences Forest Protection Key Laboratory of State Forestry Bureau Beijing 100091 China

[ Objective ] The research aimed to investigate the epidemiological characteristics of Avian influenza virus （AIV） and Newcastle disease virus （NDV） of wild Ardeid birds in Suichuan region of Jiangxi Province. [ Method] A total of 110 nasopharyngeal swabs and 110 cloacal swabs of Ardeid birds were collected from Suichuan region of Jiangxi Province in October of 2014. The swabs were conducted the virus isolation using SPF chicken embryos, suspected positive samples were screened by hemagglutination （HA） test and identified by Reverse Transcription-Polymerase Chain Reaction （RT-PCR）. [Results] HA titre of all 110 test samples was 0 except four samples. Detection on AIV and NDV of the test samples by RT-PCR showed that all the samples were negative, which indicated that the infection risk of avian influenza （AI） and newcastle disease （ND） of Ardeid birds in Suichuan region in Jiangxi Province in the summer of 2014 was low. [ Conclusion] The research provided the basic data for studying the infection situations of AI and ND of wild waterfowl in Jiangxi Province.

关键词： Avian influenza Newcastle disease Monitoring

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晋中市部分蔬菜中重金属含量及其健康风险

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中国农学通报 2009年第21期25卷 335-338页

作者：崔旭葛元英张小红山西农业大学资源环境学院山西太谷030801

为研究蔬菜重金属污染状况和蔬菜安全水平,对晋中市10种蔬菜中Hg、Pb、Cd、Cr、As等5种重金属元素的含量进行了测定,并参照国际放射防护委员会(ICRP)给出的限定值为标准,对重金属含量超标的蔬菜进行了健康风险评价。结果表明:晋中市部... 详细信息

为研究蔬菜重金属污染状况和蔬菜安全水平,对晋中市10种蔬菜中Hg、Pb、Cd、Cr、As等5种重金属元素的含量进行了测定,并参照国际放射防护委员会(ICRP)给出的限定值为标准,对重金属含量超标的蔬菜进行了健康风险评价。结果表明:晋中市部分蔬菜中铅含量超过国家限定值(GB18406.1-2001),风险评价结果表明存在Pb污染的蔬菜对人体的健康风险为1.271×10-7/年,低于国际放射防护委员会ICPR标准,表明食用蔬菜所引起的健康风险甚微,不会对暴露人群构成明显的危害。

关键词：蔬菜重金属健康风险

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国内外风电发展现状

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生产力研究 2008年第18期 75-76页

作者：迟远英张少杰李京文吉林大学管理学院吉林长春130025 中国工程院北京100088

在各类新能源中,风力发电技术相对成熟、最具大规模商业开发条件、成本相对较低,具有巨大的优越性,受到各国的普遍重视,目前风力发电已经发展成为一个成熟的产业,我国将成为未来全球风电市场的中心。文章通过对国内外风电发展现状进行研... 详细信息

在各类新能源中,风力发电技术相对成熟、最具大规模商业开发条件、成本相对较低,具有巨大的优越性,受到各国的普遍重视,目前风力发电已经发展成为一个成熟的产业,我国将成为未来全球风电市场的中心。文章通过对国内外风电发展现状进行研究,为风电产业的战略制定提供一点有益的参考。

关键词：国内外风电装机容量风能

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基于背景判别与邻域补偿的高光谱异常检测

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仪器仪表学报 2019年第3期40卷 239-245页

作者：马世欣刘春桐王欣甘源滢张正义火箭军工程大学导弹工程学院西安710025 高新技术研究所青州262550

为克服高光谱局部异常检测算子背景虚警严重,探测效果不佳等问题,提出了基于核光谱角背景判别与邻域补偿的异常检测算法。算法从背景像元的筛选和探测结果的补偿两个角度提高像元探测精度,在背景像元的处理方面,提出了一种基于核光谱角... 详细信息

为克服高光谱局部异常检测算子背景虚警严重,探测效果不佳等问题,提出了基于核光谱角背景判别与邻域补偿的异常检测算法。算法从背景像元的筛选和探测结果的补偿两个角度提高像元探测精度,在背景像元的处理方面,提出了一种基于核光谱角距离相似度的背景像元筛选算法,将光谱分辨性能更强的核光谱角引入背景差异性判别过程,准确可靠地实现局部背景像元的筛选和优化;同时,针对异常检测算子探测精度不高等问题,引入邻域加权的空谱联合补偿机制,并提出基于核光谱角距离相似度的动态模板卷积补偿算法,显著增强了背景与目标的可分性。在与RX、LRX、KRX和CRD等异常检测算法的对比中发现,该算法表现出较强的探测性能,在抑制虚警和提高探测精度等方面达到了不错的效果。

关键词：高光谱图像异常目标检测核光谱角背景筛选邻域补偿

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