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REACTION OF HETEROCYCLIC KETENE AMINALS WITH DICHLOROCARBENE

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Chinese Chemical Letters 1995年第1期6卷 5-8页

作者： Zhi Tang HUANG Jian Chao WANG and Li Ben WANG Institute of Chemistry, Academia Sinica. Beijing, 100080.Absrtact: Heterocyclic ketene aminals 1 or 2 react with dichlorocarbene to give the formyl substituted heterocylic ketene aminals 3 or 4through the ca Acad Sinica Inst Chem Beijing 100080 Peoples R China

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Role of leptin in the progression of psoriatic,rheumatoid and osteoarthritis

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World Journal of Rheumatology 2016年第1期6卷 9-15页

作者： Jessica Mounessa Iryna Voloshyna Amy D glass Allison B Reiss Winthrop Research Institute and Department of Medicine Winthrop-University HospitalSUNY Stony Brook School of Medicine

Leptin,an adipokine responsible for body weight regulation,may be involved in pathological processesrelated to inflammation in joint disorders including rheumatoid arthritis(RA),osteoarthritis,and psoriatic arthritis(PsA).These arthropathies have been associated with a wide range of systemic and inflammatory con-ditions including cardiovascular disease,obesity,and metabolic *** a potent mediator of immune responses,leptin has been found in some studies to play a role in these ***,current potent biologic treatments effectively used in Ps A including ustekinumab(an interleukin 12/23 blocker) and ada-limumab(a tumor necrosis factor-alpha blocker also used in RA) have been found to increase leptin receptor expression in human *** literature review aims to further investigate the role leptin may play in the disease activity of these arthropathies.

关键词： Psoriatic arthritis Rheumatoid arthritis Leptin Ustekinumab Tumor necrosis factor-alpha

Hydrothermal Synthesis and Structural Characterization of a Novel Mixed Valence Sodium Vanadium(Ⅳ,Ⅴ)Phosphate Na_(3.6)H_(1.4)P_(2)V_(5)O_(18)·11H_(2)O

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Chemical Research in Chinese Universities 1998年第4期14卷 3-7页

作者： PANG Guang sheng, FENG Shou hua ** and XU Ru ren (Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Department of Chemistry, Jilin University, Changchun, 130023) * Supported by the NSFC through a National Outstanding Youth

A novel mixed valance vanadium phosphate Na 3.6 H 1.4 P 2V 5O 18 ·11H 2O was synthesized by a hydrothermal method and its structure was characterized by X ray diffraction, infrared spectroscopy, differential thermal analysis, and thermogravimetric analysis. Na 3.6 H 1.4 P 2V 5O 18 ·11H 2O crystallizes in the cubic system with the cell parameter a =1.601(8) nm. The ratio of V( Ⅳ)/ V(Ⅴ) in the compound is 3.55.

关键词： Mixed valence vanadium phosphate Hydrothermal synthesis Crystallization

Developments in China's Daily-Use glass Industry

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China's Foreign Trade 1997年第3期 5-7页

作者： Huang Xuexiu Vice Director-General of the China Daily-Use glass Association

The main products of China’s dailyuse glass industry include bottle glass, utensil glass, technical glass (glass instruments, syringes, thermometers and industrial glass) and insulated container glass. These four cat... 详细信息

关键词： In Developments in China’s Daily-Use glass Industry high

Stability criteria for linear systems with multiple time-varying delays

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控制理论与应用（英文版） 2003年第1期1卷 65-69页

作者： Bugong XU(Laboratory of Real-Time Control through Internet and Fieldbuses, College of Automation Science and Engineering, South China University of Technology, Guangzhou Guangdong 510640, China) Laboratory of Real-Time Control through Internet and Fieldbuses College of Automation Science and Engineering South China University of Technology Guangzhou Guangdong China

New delay-independent and delay-dependent stability criteria for linear systems with multiple time-varying delays are established by using the time-domain method. The results are derived based on a new-type stability theorem for general retarded dynamical systems and new analysis techniques developed in the author's previous work. Unlike some results in the literature, all of the established results do not depend on the derivative of time-varying delays. Therefore, they are suitable for the case with very fast time-varying delays. In addition, some remarks are also given to explain the obtained results and to point out the limitations of the previous results in the literature. Keywords Stability - Delay-independent criteria - Delay-dependent criteria - Linear time-delay systems - Multiple time-varying delays This work was supported by NSFC Key-Project (No. 60334010) and Guangdong Province Natural Science Foundation of China (No. 31406).

关键词： Stability Delay-independent criteria Delay-dependent criteria Linear time-delay systems Multiple time-varying delays

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青春期后女性被强奸受害者中的性传播疾病

地方病译丛 1993年第5期 63-66页

作者： J. B. glass 岑衍华

尽管受性侵害的病例只有10～33%得到报道,但医学和医学辅助人员每年治疗并发症则多于81000例,包括生理学的损伤,感情上的失调、妊娠和性传播疾病(STDs)。几起研究曾估计,青春期后女性受奸污者中STDs的危险性,但只有一起大规模的调查,估... 详细信息

尽管受性侵害的病例只有10～33%得到报道,但医学和医学辅助人员每年治疗并发症则多于81000例,包括生理学的损伤,感情上的失调、妊娠和性传播疾病(STDs)。几起研究曾估计,青春期后女性受奸污者中STDs的危险性,但只有一起大规模的调查,估计了该组人群中除淋病和梅毒以外的STDs危险性,其他妨碍性受害者中准确地

关键词：人支原体急诊室青春期后随访检查沙眼衣原体衣原体属受害者性传播疾病性病四环素血清样本青霉素抗菌素衣原体感染女性

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对硬盘压缩工具的评价

计算机世界月刊 1994年第5期 143-144页

作者： Brett glass

在计算机的使用当中,我们都有这样一个感觉,不管拥有多么大的硬盘空间,还是会感到不满足。特别是在今天,Windows操作系统的广泛采用,使应用程序变得越来越庞大,所需要的硬盘空间明显增多。因此对用户来说,如果不是刚刚买了一个暂时称得... 详细信息

在计算机的使用当中,我们都有这样一个感觉,不管拥有多么大的硬盘空间,还是会感到不满足。特别是在今天,Windows操作系统的广泛采用,使应用程序变得越来越庞大,所需要的硬盘空间明显增多。因此对用户来说,如果不是刚刚买了一个暂时称得上是足够大的硬盘,那么总会产生扩充硬盘容量的要求。由于大容量硬盘的价格相对还是比较昂贵,所以许多用户将眼光投向了目前市场上颇为走俏的磁盘压缩工具,如DOS 6.0以上版本中所配的DoubleSpace。这类工具的使用可以有效地提高磁盘的存储容量,通常认为可以提高一倍。但是,目前对这类工具的使用还存在许多疑问,有的专家认为它们并不像广告宣传中所介绍的那么完美,还存在安全性、处理速度等方面的问题。因此许多用户不清楚这类工具的使用到底是否合适。为了搞清楚这个问题,我们考察了目前使用面最广的两种磁盘压缩工具:即MS DOS 6.

关键词：硬盘压缩工具

INTRODUCTION TO GRIN LENS SYSTEMS

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光电子.激光 1989年第2期 70-73页

作者： ICHIRO KITANO Central Research Laboratry Nippon sheet Glass Co.Ltd.

Gradient-index（GRIN） plano-convex lens optimizing its curvature with the refractive index distribution coefficients can attain the high numerical aperture aplanat. Highly specified lens system of either infinite and... 详细信息

关键词： mode INTRODUCTION TO GRIN LENS SYSTEMS length

Climate variations since the last interglacial recorded in Czech loess

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Climate variations since the last interglacial recorded in C...