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Adaptive BER-constraint-based power allocation for downlink MC-CDMA systems with linear MMSE receiver

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Science China(Information Sciences) 2013年第7期56卷 76-84页

作者： wang JunBo CHEN Ming wang jinyuan CAO Zhe TANG SuWen Key Laboratory for Information System Security of Ministry of Education School of Software Tsinghua University State Key Laboratory of Integrated Services Networks Xidian University College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics National Mobile Communications Research Laboratory Southeast University

Power allocation plays a crucial role in wireless communications. To facilitate the efficient allocation of limited transmit power, in this paper, a bit error rate (BER) constraint based power allocation scheme is proposed for the downlink of multi-carrier code division multiple access (MC-CDMA) systems with linear minimum mean square error (MMSE) receiver. According to the instantaneous path gains, the proposed scheme can determine the required minimum transmit power on each channel to meet the BER constraint. The simulation results show that the proposed scheme can consistently provide high-quality solutions with a very few iteration time, and also prove that it is efficient in reducing the transmit power while meeting BER constraint, and thereby improves the system performance.

关键词： CDMA multi-carrier transmission MMSE BER power allocation

Symbol Error Rate Performance Analysis of Non-Orthogonal Multiple Access for Visible Light Communications

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China Communications 2017年第12期14卷 153-161页

作者： Hongji Huang jinyuan wang Jie wang Jie Yang Jian Xiong Guan Gui College of Telecommunication and Information Engineering Nanjing University of Posts and Telecommunications Nanjing China

Non-orthogonal multiple access(NOMA) is considered as one of promising radio access techniques for visible light communications(VLC) in next-generation wireless communications *** order to provide theoretical support for designing VLC-NOMA,we derive its analytic expressions for the symbol error rate(SER).Specifically,NOMA is first incorporated with appropriate VLC to establish a VLC-NOMA ***,mathematical expressions of the SER for the VLC-NOMA are ***,numerical results are provided carefully to demonstrate that the proposed VLC-NOMA scheme outperforms than state-of-the-art orthogonal frequency division multiple access(OFDMA) one in terms of SER ***,relationships between the SER performance and the number of users,power allocation coefficient and semi-angle are well investigated,which can give us a scientific guide to devise the VLC-NOMA system for achieving better SER performance.

关键词： visible light communication(VLC) non-orthogonal multiple access(NOMA) symbol error rate (SER)

Provenance of Detrital Magnetites from Quaternary Sediments in the Yichang Area and its Significance to the Birth of the Three Gorges, Yangtze River

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Acta Geologica Sinica(English Edition) 2016年第3期90卷 1063-1064页

作者： XIANG Fang wang Yuwan ZHANG Yao LI Shuxia wang jinyuan FEN Qin Institute of Sedimentary Geology Chengdu University of Technology Department of Earth Sciences Chengdu University of Technology

Objective In recent years, the birth time and evolution of the Three Gorges, Yangtze River has become a focused topic. Different from previous studies, this study used provenance analysis of Quaternary sediments to discuss this question. Among those minerals in Quaternary sediments, magnetite was rarely studied. This paper presents element geochemistry and backscatter images of detrital magnetites from the Quaternary sediments in the Yichang area of Hubei Province. By discussing the provenance changes of detratic magnetites, we suggested the birth time of the Three Gorges of the Yangtze River.

关键词： Provenance of Detrital Magnetites from Quaternary Sediments in the Yichang Area and its Significance to the Birth of the Three Gorges Yangtze River

The shaping of milk-flavored white tea:More than a change in appearance

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Journal of Integrative Agriculture 2024年第11期23卷 3912-3922页

作者： Jiao Feng Weisu Tian jinyuan wang Shuping Ye Guanjun Pan Bugui Yu Fang wang Hongzheng Lin Zhilong Hao College of Horticulture Fujian Agriculture and Forestry UniversityFuzhou 350002China Key Laboratory of Tea Science in Universities of Fujian Province Fuzhou 350002China Zhenghe Ruiming Tea Co. Ltd.Zhenghe 353600China Tea Sensory Evaluation Research Center Ningde Normal UniversityNingde 352000China

Tea’s popularity and flavor are influenced by factors like cultivation and processing methods and shaping techniques also have an impact on tea *** study employed targeted metabolomics and chemometrics to investigate how shaping techniques affect the flavor of milk-flavored white tea(MFWT).The results showed that the tea cake sample with the shortest pressing time(Y90)has the highest amino acid content and milky aroma *** were variations in amino acids,catechins,and soluble sugars among MFWT samples with different shaping *** total contents of amino acids and catechins in tea cake sample(Y90)were significantly lower than those in the loose tea sample(SC)and bundle-like tea sample(SG),while the total sugar content was significantly higher than that in SC(P1)in Y90 remained lower relative to SC and SG(P<0.05),but the proportion was not different from that in SC and SG,minimally affecting the overall *** short-time pressing method might be suitable for mass production of *** findings provide insights into improving the tightness of the appearance of MFWT with minimal impact on tea flavor.

关键词： shaping milk-flavored white tea Camellia sinensis tea processing tea flavor

Variability and reduction of atmospheric pollutants in Beijing and its surrounding area during the Beijing 2008 Olympic Games

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Chinese Science Bulletin 2010年第18期55卷 1937-1944页

作者： XIN jinyuan wang YueSi TANG GuiQian wang LiLi SUN Yang wang YingHong HU Bo SONG Tao JI DongSheng wang WeiFeng LI Liang LIU GuangRen State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy ofSciences Beijing 100029 China

The Beijing-Tianjin-Hebei Atmospheric Environment Monitoring Network was established by the Institute of Atmospheric Physics,Chinese Academy of *** goals of the network were to monitor and provide warnings of the atmospheric quality in Beijing and its surrounding area during the Beijing 2008 Olympic *** results showed that the atmospheric complex pollution exhibited high concentrations of ozone and fine particles and oxidation in summer,with a ubiquitous regional *** regional mean concentrations of SO2,PM2.5,NO2,and O3_8h max(the maximum daily 8 h mean) and Ox were 22±11,90±40,25±5,136±35 and 112±21 μg/m3 in summer,*** the Olympic Games,the mean concentration of SO2,PM2.5,NO2,O3_8h max,and Ox were 12.5±4,56±28,23±4,114±29,95±17 μg/m3 in the region,respectively,and fell by 51.0%,43.7%,13%,20.2%,and 18.9%,respectively,compared to the prophase mean before the Olympic *** concentration of atmospheric pollutants declined significantly and achieved the "Green Olympics" control goal of air *** the Olympic Games,SO2,PM2.5 and NOx increased significantly as the temporary atmospheric pollution control measures were terminated.

关键词：北京2008年奥运会大气污染物周边地区 2008年北京奥运会环境监测网络 PM2.5 平均浓度二氧化硫

Gene replacement therapy in Bietti crystalline corneoretinal dystrophy:an open-label,single-arm,exploratory trial

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Signal Transduction and Targeted Therapy 2024年第5期9卷 2275-2284页

作者： jinyuan wang Jinlu Zhang Shicheng Yu Hongyan Li Shaohong Chen Jingting Luo Haibo wang Yuxia Guan Haihan Zhang Shiyi Yin Huili wang Heping Li Junle Liu Jingyuan Zhu Qiong Yang Ying Sha Chuan Zhang Yuhang Yang Xuan Yang Xifang Zhang Xiuli Zhao Likun wang Liping Yang Wenbin Wei Beijing Tongren Eye Center Beijing Key Laboratory of Intraocular Tumor Diagnosis and TreatmentBeijing Ophthalmology&Visual Sciences Key LabMedical Artificial Intelligence Research and Verification Key Laboratory of the Ministry of Industry and Information TechnologyBeijing Tongren HospitalCapital Medical University100730 BeijingChina School of Clinical Medicine Tsinghua University100084 BeijingChina Chigenovo Co. Ltd.102206 BeijingChina Department of Ophthalmology Peking University Third HospitalBeijing Key Laboratory of Restoration of Damaged Ocular NervePeking University Third Hospital100191 BeijingChina Department of Ophthalmology The Third People’s Hospital of Dalian116091 DalianChina Department of Biomedical Informatics School of Basic Medical SciencesPeking University Health Science Center100191 BeijingChina Institute of Systems Biomedicine Department of PathologySchool of Basic Medical SciencesPeking University Health Science Center100191 BeijingChina

Bietti crystalline corneoretinal dystrophy is an inherited retinal disease caused by mutations in CYP4V2,which results in blindness in the working-age population,and there is currently no available ***,we report the results of the first-in-human clinical trial(NCT04722107)of gene therapy for Bietti crystalline corneoretinal dystrophy,including 12 participants who were followed up for 180-365 *** open-label,single-arm exploratory trial aimed to assess the safety and efficacy of a recombinant adeno-associated-virus-serotype-2/8 vector encoding the human CYP4V2 protein(rAAV2/8-hCYP4V2).Participants received a single unilateral subretinal injection of 7.5×10^(10)vector genomes of rAAV2/***,73 treatment-emergent adverse events were reported,with the majority(98.6%)being of mild or moderate intensity and considered to be procedure-or corticosteroid-related;no treatment-related serious adverse events or local/systemic immune toxicities were *** with that measured at baseline,77.8%of the treated eyes showed improvement in best-corrected visual acuity(BCVA)on day 180,with a mean±standard deviation increase of 9.0±10.8 letters in the 9 eyes analyzed(p=0.021).By day 365,80%of the treated eyes showed an increase in BCVA,with a mean increase of 11.0±10.6 letters in the 5 eyes assessed(p=0.125).Importantly,the patients’improvement observed using multifocal electroretinogram,microperimetry,and Visual Function Questionnaire-25 further supported the beneficial effects of the *** conclude that the favorable safety profile and visual improvements identified in this trial encourage the continued development of rAAV2/8-hCYP4V2(named ZVS101e).

关键词： cor dystrophy crystalline

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离焦系统下的单分子三维取向研究

光学学报 2007年第5期27卷 766-770页

作者：王金媛王琛刘力王桂英中国科学院上海光学精密机械研究所上海201800

提出了一种新思路来确定单分子的三维取向,在全内反射荧光显微成像的基础上,在显微镜的油镜上加一个水层,水和油的折射率不同造成光程差,产生离焦,利用全内反射产生隐失波激发了单分子的纵向分量,并在探测器前增加了一个分光镜,把光路... 详细信息

提出了一种新思路来确定单分子的三维取向,在全内反射荧光显微成像的基础上,在显微镜的油镜上加一个水层,水和油的折射率不同造成光程差,产生离焦,利用全内反射产生隐失波激发了单分子的纵向分量,并在探测器前增加了一个分光镜,把光路分成偏振方向相互垂直的两束光,使得探测器上的光场分布包含单分子三维取向的信息。推导了隐失场激发的偶极矩光场在探测器上的光强分布表达式,通过分析偏振方向相互垂直的两束光在探测器上的不同的强度分布,来判断单分子偶极矩的三维取向。

关键词：原子与分子物理单分子取向离焦显微术全内反射隐失波

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人身自由的构成与限制

华东政法大学学报 2011年第2期14卷 11-17页

作者：汪进元东南大学

狭义的人身自由是指身体活动自由,包括积极作为的自由和消极不作为的自由;广义的人身自由还包括居住和迁徙自由、出入境自由等。比较人身自由之限制的立宪规则,英美国家重程序保障;德国重实体保障,并明列了限制人身自由的理由和目的;国... 详细信息

狭义的人身自由是指身体活动自由,包括积极作为的自由和消极不作为的自由;广义的人身自由还包括居住和迁徙自由、出入境自由等。比较人身自由之限制的立宪规则,英美国家重程序保障;德国重实体保障,并明列了限制人身自由的理由和目的;国际人权法和日本等国兼采上述模式的合理因素,具体规定了限制人身自由的程序和实体规则。我国宪法的规定则过于抽象。对人身自由的限制方式有限制与剥夺、追惩性限制与保护性限制、隔离性限制与管束性限制等,目的只能为了国家安全和公共利益。

关键词：人身自由构成限制人身自由合宪性

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论宪法的人性尊严原则

河南财经政法大学学报 2012年第4期27卷 56-62页

作者：汪进元东南大学法学院江苏南京211189

从法哲学上看,古希腊学者普罗泰格拉斯主张"人是万物的尺度",中世纪神学大师阿奎那主张神性决定人性;近代以来,洛克等经验理性主义者主张自私、贪欲是人的本性,因此每个人追逐自我利益的结果必然导致他人被工具化和商品化,康德从实践理... 详细信息

从法哲学上看,古希腊学者普罗泰格拉斯主张"人是万物的尺度",中世纪神学大师阿奎那主张神性决定人性;近代以来,洛克等经验理性主义者主张自私、贪欲是人的本性,因此每个人追逐自我利益的结果必然导致他人被工具化和商品化,康德从实践理性的角度提出了"人是目的不是手段"的命题,成为近代以来人性尊严的核心机理。在中国,自古就有"天地之间,莫贵于人"的人性观,孔子认为"己所不欲,勿施于人"。孟子提出了"四心说"和"富贵不能淫"的人性观;现代儒学者蒋庆主张"礼乐制度中的人性尊严"。故此,西方学者主张的是一种利己的权利论式的人性观或者个人主义人性观,中国儒家学者主张的是一种利他的义务论式的人性观或者团体主义人性观。从法释义学上看,个人主义的人性观极力彰显个人自由,尤其是契约自由,国家主义的人性观过分强调整体利益,忽视个人利益,二者均容易导致个人被工具化和商品化;人格主义的人性观介于二者之间,当为可取;"人性尊严"与"人格尊严"的区别在于:"人性"是相对于"神性"和"兽性"而言的,"人格"是指特定人的身份、资格和能力,是区别于他人的个性化权利。人性尊严是一项上位宪法原则,正如国际人权法条文规定的一样,是各项具体人权的本源和基础。人性尊严原则的功能表现为:确立了国家权力运行的人性基础,标定了基本权利保障的底线标准,设定了宪法未列举权利的推定原则。

关键词：人性人格尊严宪法原则功能