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On some tests-based projection pursuit for elliptical symmetry of a high-dimensional distribution

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Chinese Science Bulletin 1998年第6期43卷 450-458页

作者： JING Ping 1.and zhu Lixing 2 1. Mathematics Lab, China University of Mining & Technology, Beijing 1.0083, China 2. Probability Lab, Institute of Applied Mathematics, Chinese Academy of Sciences, Beijing 1.0080, China Mathematics Lab China University of Mining & Technology Beijing China Probability Lab Institute of Applied Mathematics Chinese Academy of Sciences Beijing China

Some test statistics of Kolmogorov type and Cramér-von Mises type based on projection pursuit technique are proposed for the testing problem of sphericity of a high-dimensional distribution. The limiting distributions of the test statistics are derived under the null hypothesis and under any fixed alternative. The asymptotic properties of bootstrap approximation are investigated. Furthermore, for computational reasons, an approximation for the statistics, based on the number theoretic method, is suggested.

关键词： bootstrap approximation projection pursuit type statistic elliptical symmetry.

Molecular cloning of growth hormone receptor (GHR) from common carp(Cyprinus carpio L.)and identification of its two forms of mRNA transcripts

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Progress in Natural Science:Materials International 2006年第11期16卷 1156-1163页

作者： SUN Xiaofeng~ 1.2 , GUO Qionglin~1.*, HU Wei~1. WANG Yaping~1.and zhu Zuoyan~1.1. State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China 2. Graduate School of Chinese Academy of Sciences, Beijing 1.0039, China) State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China

The cDNA of growth hormone receptor (GHR) was cloned from the liver of 2-year common carp (Cyprinus carpio L.) by reverse transcription-polymerase chain reaction (RT-PCR) and rapid amplification of cDNA end (RACE). Its open reading frame (ORF) of 1.06 nucleotides is translated into a putative peptide of 602 amino acids, including an extracellular ligand-binding domain of 244 amino acids (aa), a single transmembrane domain of 24 aa and an intracellular signal-transduction domain of 334 aa. Sequence analysis indicated that common carp GHR is highly homologous to goldfish (Carassius auratus) GHR at both gene and protein levels. Using a pair of gene-specific primers, a GHR fragment was amplified from the cDNA of 2-year common carp, a 224 bp product was identified in liver and a 321.bp product in other tissues. The sequencing of the products and the partial genomic DNA indicated that the difference in product size was the result of a 97 bp intron that alternatively spliced. In addition, the 321.bp fragment could be amplified from all the tissues of 4-month common carp including liver, demonstrating the occurrence of the alternative splicing of this intron during the development of common carp. Moreover, a semi-quantitative RT-PCR was performed to analyze the expression level of GHR in tissues of 2-year common carp and 4-month common carp. The result revealed that in the tissues of gill, thymus and brain, the expression level of GHR in 2-year common carp was significantly lower than that of 4-month common carp.

关键词： growth hormone receptor (GHR) molecular cloning transcript expression analysis common carp.

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原子喷泉频标:原理与发展

物理学报 2018年第16期67卷 138-154页

作者：王倩魏荣王育竹中国科学院上海光学精密机械研究所量子光学重点实验室上海201800 中国科学院大学北京100049

介绍了喷泉频标的原理与发展.喷泉频标是一项近20年来发展起来的原子钟技术,它以激光冷却技术为基础,利用该技术实现了冷原子介质的俘获与上抛.冷原子介质在上抛下落过程中首先完成原子态制备,然后两次通过微波谐振腔实现Ramsey作用,在... 详细信息

介绍了喷泉频标的原理与发展.喷泉频标是一项近20年来发展起来的原子钟技术,它以激光冷却技术为基础,利用该技术实现了冷原子介质的俘获与上抛.冷原子介质在上抛下落过程中首先完成原子态制备,然后两次通过微波谐振腔实现Ramsey作用,在两次作用之间原子经历自由演化,最后原子经过探测区,通过双能级荧光探测法探测原子跃迁概率得到鉴频的Ramsey干涉条纹,并实现频率锁定,其中心条纹的线宽在1.z左右.频率稳定度和频率不确定度是喷泉频标的两个重要指标.影响喷泉钟频率稳定度的因素主要有量子投影噪声和电子学噪声,目前喷泉钟的短期稳定度为(1.^(-1.)—1.^(-1.))τ^(-1.2),长期稳定度在(1.^(-1.)—1.^(-1.))量级.喷泉频标的频率不确定度主要受二阶塞曼频移、黑体辐射频移、冷原子碰撞频移以及与微波相关的频移等的影响.目前喷泉钟的不确定度在小的1.^(-1.)量级.作为基准频标,喷泉钟的工作介质主要是^(1.3)Cs,^(87)Rb.国际各大计量机构都研制了喷泉频标,它在各地协调世界时的建立、国际原子时的校准等方面发挥着越来越重要的作用.此外,喷泉频标还用于研究高精度时频基准和时间比对链路、验证基本物理理论等.

关键词：喷泉频标 Ramsey作用稳定度不确定度

Geomagnetic /Dead Reckoning Integrated Navigation Method Considering Geomagnetic Error

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Geomagnetic /Dead Reckoning Integrated Navigation Method Con...

Inhibition of Aloperine on Dextran Sulphate Sodium-induced Chronic Colitis in C57BL/6 Mice

第24届中国控制与决策会议

作者： Dayuan Gao 1., Chao Wang 1., Hai zhu 1.1. Navy Submarine Academy, Qingdao 266042, China

In geomagnetic navigation, the resulted position is not precise because of the influence of vehicle magnetic field. This paper used integrated navigation based on the geomagnetic measurement and dead reckoning. The geomagnetic error model is added to geomagnetic measurement model. The unscented Kalman filter is used to make two positioning method adjust each other. Simulation shows that the method is suitable for the integrated navigation of dead reckoning and geomagnetic measurement with error.

关键词： Geomagnetic Navigation Integrated Navigation Unscented Kalman Filter Dead Reckoning

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Chinese Herbal Medicines 2012年第3期4卷 218-223页

作者： SONG Li-jun 1., ZHAO Wen-chang 1., DENG Hong-zhu 2 1. School of Pharmacy, Guangdong Medical College, Dongguan 523808, China 2. School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 51.51., China School of Pharmacy Guangdong Medical College Dongguan 523808 China School of Traditional Chinese Medicine Southern Medical University Guangzhou 510515 China

Objective To investigate the effects of aloperine (ALO) on a model of dextran sulphate sodium (DSS)-induced chronic colitis in C57BL/6 mice. Methods Repeated colitis was induced by administration of four cycles of 4% DSS. The severity of colitis was assessed on the basis of clinical signs, ratio of colon weight and colon length, and histological grading scores. Moreover, secretory immunoglobulin A (S-IgA) and plasma haptoglobin (HP) were analyzed by enzyme-linked immunosorbent assay, and the changes of mRNA expression of ICAM-1.and MIF gene in colorectal tissue were detected by quantitative reverse transcriptase real-time polymerase chain reaction using SYBR Green I. Results ALO administration significantly attenuated the colon damage, caused substantial reductions of the rise in HP, and maintained the level of cecum S-IgA. ALO inhibited the ICAM-1.mRNA expression and had no effect on MIF mRNA expression. Conclusion The effect of ALO on DSS-induced chronic colitis in mice is investigated for the first time, which suggests that ALO could be an attractive therapeutic candidate in the treatment of inflammatory bowel disease.

关键词： aloperine dextran sulphate sodium haptoglobin inflammatory bowel disease secretory immunoglobulin A

Evaluation of Adiponectin, Resistin, IL-6, TNF-α in Obese and Non-obese Women with Polycystic Ovary Syndrome

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Journal of Reproduction and Contraception 2012年第4期23卷 237-244页

作者： Yu-xia WANG Wei-jie zhu Department of Obstetrics and Gynecology the First Affiliated Hospital Jinan University Institute of Reproductive Immunology Jinan University

Objective To evaluate possible clinical effects of adiponectin, resistin, 1.-6, and TNF-a in obese and non-obese patients with polycystic ovary syndrome （PCOS）. Methods Seventy selected PCOS patients were recruited for this study, and were divided into two groups based on their body mass index （BM1.： 35 obese （BM1.25 kg/m2, group A）, 35 non-obese （BMI〈25 kg/me, group B）. In addition, 35 healthy non-obese women （BMI〈25 kg/m2） were enrolled as the control （group C）. Serum levels of FSH, LH, T, glucose, insulin, adiponectin, resistin, 1.-6, TNF-a. were detected, and compared the differences of them among three groups. Results Blood glucose levels among three groups had no difference （P〉0.05）. Blood insulin level was significantly greater in group A than in group B or group C （P〈0.05）, and a significant difference existed between group B and group C （P〈0. 05）. The ratio of glucose/insulin was significantly higher in group A than in group B or group C （P〈0.05）, and the ratio in group B was significantly higher than that in group C （P〈0.05）. Adiponectin level was significantly lower and resistin level was significantly higher in group A than in group B or group C （P〈0.05）. IL-6 level in group C was significantly lower than that in group A or group B （P〈0.05）, and significant difference was found between group A and group B （P〈0.05）. TNF-a level was a slight high in group B, whereas there was no statistical difference among three groups （P〉0.05）. Conclusion Disturbances of some metabolic and inflammatory adipokines could involve the pathogenesis of PCOS in both obese and non-obese women. Low-grade chronic inflammation might have negative effects on the development of PCOS in non- obese women.

关键词： polycystic ovary syndrome (PCOS) adipokines obesity

Evaluation of Fragility of the Economic System in Poyang Lake Ecological Economic Zone

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Asian Agricultural Research 2012年第8期4卷 72-76页

作者： CHENG Qiao-zhen 1.,CHEN Xiao-ling 1. 2 ,zhu Feng-feng 1.,zhu Jing 1.1. School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,China 2. State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan 430022,China

From two aspects,namely the sensitivity of regional economic system to internal and external interference,and its resilience,we establish the evaluation indicator system of fragility of the economic system in Poyang Lake Ecological Economic Zone,and evaluate the internal differences in fragility of the regional economic system,using set pair analysis method. The results show that there is a great difference in fragility of the economic system between different administrative units; the difference in resilience is the major factor responsible for difference in fragility of the economic system in various cities and counties within the region; according to the difference in fragility characteristics,we conduct classification as follows: Nanchang City is a low-sensitivity and high-resilience type; Jiujiang City is a high-sensitivity and high-resilience type; Jiujiang County,Xingzi County,Yongxiu County,Hukou County,Duchang County,Ruichang County,De'an Xian,Wuning County,Pengze County,Leping City, Dongxiang County,Fengcheng City and Gao'an City are a high-sensitivity and low-resilience type; other cities and counties are a low-sensitivity and low-resilience type.

关键词： Fragility evaluation The economic system Poyang La

Study on Extension Strategy-Tactics-Planning

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Engineering Sciences 2004年第2期 38-43页

作者： Yang Chunyan 1. Zhang Yongjun 2, zhu Dongmei 1. (1. Research Institute of Extension Engineering, Guangdong University of Technology, Guangdong Guangzhou 51.090 2. Springfield Wire (China) Inc,Guangdong Dongguan 52391.)

Extension strategy tactics planning (ESTP), based upon the science of Extenics, is established for the purpose of solving contradictory problems. In this paper, the fundamental thoughts, theories and methods of ESTP are introduced concisely. The highlights of ESTP are that the techniques, used in the case of tackling such problems as how to generate the ideas of strategy tactics planning, how to completely analyze the resources, how to exploit extension resources, how to transfer the incompatible into the compati ble, and how to transfer the opposite into the co existent, are developed in a formalized way. And regarding the practices of ESTP, the applications of ESTP in resource integration, project, market development, and the prevention and handling crises are presented.

关键词： extension strategy tactics planning contradictory problem extension method idea generation extension resource

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光纤水听器测量聚焦换能器声压和温度分布

北京化工大学学报（自然科学版） 2016年第5期43卷 84-88页

作者：赵小策杨平祝海江北京化工大学信息科学与技术学院北京100029 中国计量科学研究院力学与声学计量科学研究所北京100029

为了解决人体中高强度聚焦超声(HIFU)焦点处的温度场分布检测的难题,给出了从声压分布入手探测温度场分布问题的新方法。通过搭建光纤水听器自动扫描系统,利用光纤水听器同时测量仿组织材料(TMM)样本中焦斑区域的声场和温度的分布,探究... 详细信息

为了解决人体中高强度聚焦超声(HIFU)焦点处的温度场分布检测的难题,给出了从声压分布入手探测温度场分布问题的新方法。通过搭建光纤水听器自动扫描系统,利用光纤水听器同时测量仿组织材料(TMM)样本中焦斑区域的声场和温度的分布,探究声压和温度在人体组织中的分布关系。通过实验得出,声压最大处和温度场最高处坐标同为(0 mm,0 mm);-3 d B和-6 d B声束宽度:声压为2.4 mm、3.22 mm,温度为2.44 mm、2.98 mm。实验结果表明,声压和温度的最大值高度重合;仿组织材料样本中超声焦点处的横切面温度分布要比声压分布陡峭,即相比声压分布,温度场的能量分布更加集中,焦点半径更小。

关键词：光纤水听器高强度聚焦超声(HIFU) 温度场声场测量