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The Journal of china Universities of Posts and Telecommunications 2003年第3期10卷 101-106页

作者： WU Hong bin, SUN Hao, WANG Wei min (Management Department of shijiazhuang Postal College, shijiazhuang 0500{2., P. R. {{2.) Management Department of Shijinzhuang Postal College Shijiazhuang 050021

The paper makes an integrative evaluation of the current main ten categoriesof postal services by using the Evaluation Method of GE Corporation on the basis of the integrativeevaluation by some managers of postal enterprises concerned and some experts in the fields of postalservices on the defined eight indexes, which cover the main 4 indexes that model the postalenterprise's strength and the other main 4 indexes that reflect the future development prospect ofpostal services. And further, according to the marks given by the managers and experts to allcategories of postal services, the paper defines the quadrants of all categories of services to makecertain the orientation and measures for the development of all these categories of postalservices.

关键词： enterprise's strength market attraction strategic orientation developmentmeasures

Environmental significance exploration to Tamarix ConeAge Layer in Lop Nur Lake region

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Science Bulletin 2005年第20期 141-143页

作者： XIA Xuncheng1, ZHAO Yuanjie2.1, WANG Fubao3 & CAO Qiongying3 1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, china 2. College of Resources and Environmental Sciences, Hebei Normal University, shijiazhuang 050016, china 3. Department of Urban and Resources Sciences, Nanjing University, Nanjing 2.0093, china

Synthesis and Steric Structure of 1, 5-Benzothiazepine-Phenyl-β-Lactams

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Chinese Chemical Letters 1999年第1期10卷 23-26页

作者： Yuan LI Jian Dong SHI Yuan Jing ZHANG Sheng JIN Qi Yi XING(Department of Chemistry, Hebei Normal University. shijiazhuang 050016 shijiazhuangTeachers College 050041)(Beliing institute of Radiation Medicine, Beijing 100850)(Institute of Chemistry and Hebei Normal Univ Dept Chem Shijiazhuang 050016 Peoples R China shijiazhuang Teachers Coll Shijiazhuang 050041 Peoples R China Beijing Inst Radiat Med Beijing 100850 Peoples R China Peking Univ Inst Chem & Mol Engn Beijing 100871 Peoples R China

1, 5-Benzothiazepines 1 react with phenylacetyl chloride to give the title *** structures of these new compounds were confirmed by elemental analysis, ~1H NMR, ^(13)C NMRand MS spectroscopy, and their configuration (the mutual positions of the substituents relative to theβ-lactam ring) and conformation of the compounds were determined by X-ray crystal analysis.

关键词： 1,5-benzothiazepine β-lactam stereospecific reaction

Two-stop-two-slip motions of a dry friction oscillator

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中国科学:技术科学 2010年第2期 209-209页

作者： YANG ShaoPu1 & GUO ShuQi2.1 School of Mechanical Engineering, shijiazhuang Railway Institute, shijiazhuang 050043, {2. 2.Department of Engineering Mechanics, shijiazhuang Railway Institute, shijiazhuang 050043, {2.

This paper presents the investigation on the two-stop-two-slip (TSTS) motions in a dry friction oscillator. Friction is a kind of dissipated force. Simple dry friction oscillator implies complicated stick-slip motions. Due to its nonlinear non-smooth characters, it is difficult to analyze the stick-slip motions. First, TSTS motion is analyzed in this paper. A closed form solution of the TSTS motions is presented. In addition, parameter domain for the motion is studied. In general, there are no explicit solutions to transcendental equation in the closed form solution. However, explicit solutions are possible for special cases. Moreover, Poincare map is structured to analyze the stability of the motions.

关键词： dry friction non-smooth dynamics stick-slip motion

Research and Discussion on Physical and Chemical Properties of Cultivating Substrate with Facilities

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Chinese Forestry Science and Technology 2008年第2期7卷 49-55页

作者： MA Ying1 YIN Shulian1 ZHANG Yongxin2.1. Department of Garden in Hebei Professional College of Political Science and Law, shijiazhuang 050061, P. R . {2. 2. Flower management centre in Hebei Province Forestry Bureau, shijiazhuang 050061, P. R. {2.

This article, by comparing the basic concepts of substrate and soil, their composition of substance and methods of measuring the indexes of physical and chemical properties, analyzes and researches ways of choosing substrate for cultivation with facilities. It indicates that the normal physical and chemical indexes of evaluating a substrate are bulk density, total porosity, non-capillary porosity, ratio of big porosity to small porosity, the pH and the electrical conductivity (EC) value of the substrate. By measuring the physical and chemical properties of the substrate in different prescription and the cultivation experiments, the best substrate can be sieved.

关键词： cultivating with facilities substrate sieve physical and chemical properties application

A　Study　of　Target　Market　and　Administration　Tactics　of　Advertisement　Letter　Service

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The Journal of china Universities of Posts and Telecommunications 1996年第2期3卷 62-66页

作者： Li Xuedong(Department of Postal Communication Management shijiazhuang Postal College, shijiazhuang 0500{2.. P. R. {{2.)

in this paper, advertisement service markets are sorted out from two respects, and divided intosegments on two dimensions. Based on the discussion about competitive ability of advertisement letterservice in every market segment, markets are divided into three grades. In the end, the market allocationand some key administration taCtics about advertisement letter service are discussed.

关键词： s: advertisement letter target market administration tactics

Overexpression of a Wall-Associated Kinase OsWAK2.Causes Pleiotropic Phenotype in Rice

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Overexpression of a Wall-Associated Kinase OsWAK2 Causes Ple...

Effects of morphine dependence and withdrawal on levels of neurosteroids in rat brain

2.09整合植物生物学研讨会

作者： Qian Zhang~(1,2.),Li-Jing Sun~(2.),Yi-Hong Yang~2.Ying Sun~(2.) and Tie-Gang Lu~1 1 Biotechnology Research Institute/National Key Facility for Crop Gene Resources and Genetic Improvement,Chinese Academy of Agricultural Sciences,Beijing 100081,china 2.Institute of Molecular Cell Biology,Hebei Normal University,shijiazhuang 050016,china.

The wall-associated kinases(WAKs)play important roles in cell expansion,pathogen resistance,and heavy-metal responses in Arabidopsis ***2.is a typical member of this gene family in rice(Oryza sativa)that shows similarity to AtWAKs. OsWAK2.GFP fusion protein is localized on the cell surface and associated with the cell

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Acta Pharmacologica Sinica 2004年第10期 45-51页

作者： Cai-zhen YAN, Yan-ning HOU Bathune International Peace Hospital, Hebei Medical University,shijiazhuang 050082. {2.

AIM: To investigate the effects of morphine dependence and withdrawal on the concentrations of neurosteroids in rat brain. METHODS: A method of simultaneous quantification of neurosteroids by gas chromatography-mass spectrometry (GC-MS) had been established. RESULTS: The chronic morphine administration (ip) resulted in a marked decrease in the brain concentrations of pregnenolone (PREG), progesterone (PROG), and pregenenolone sulfate (PREGS) in rats killed 6 h after the last treatment. In contrast, there were no significant effects of morphine dependence on the brain concentrations of allopregnanolone (AP), dihydroepiandrosterone (DHEA), and dihydroepiandrosterone sulfate (DHEAS). Naloxone-induced withdrawal produced a significant increase in the concentrations of PREG, PROG, AP, DHEA, PREGS, and DHEAS as compared with the control group. CONCLUSION: Morphine dependence and withdrawal affected the concentrations of neurosteroids in rat brain, which suggests that endogenous neurosteroids in brain might be

关键词： morphine dependence withdrawal steroids mass fragmentography

Biomimetic staring infrared imaging omnidirectional detection technology

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Science Bulletin 2010年第Z2期 3073-3080页

作者： WANG YongZhong shijiazhuang Mechanical Engineering College,shijiazhuang 050003,{{2.

In order to realize omnidirectional real-time detection and awareness in thermal infrared (IR) region,a kind of biomimetic miniature IR imaging detection system (BMIRIDS) has been successfully *** is classified as a long wave IR(LWIR) system and a mid-wave IR(MWIR) *** former consists of a LWIR fish-eye lens and a LWIR focal plane array (FPA)-biomimetic electronic module,the latter consists of a MWIR fish-eye lens and a MWIR FPA-biomimetic electronic *** can provide complete hemispherical staring field of view,and have the capability to determine target bearings,to remove all stationary scene clutter and only detect moving targets,to sense targets range and their *** capability closely approximates the vision process performed in nature by biological ***,an additional biomimetic module block has been integrated into *** module block imitating the function of human vision produces the logarithmic brightness image,and enhances the target image outline by virtue of the Roberts gradient *** logarithmic transform permits expanding the dynamic range of optical incidence without saturating the electric circuit,and makes the image more suitable for *** and FPGA perform the aforesaid vision functions that are advantageous to detect and track ***,BMIRIDS can perform more powerful real-time signal and image processing on the resulting image data than the ordinary previous systems mainly by the aid of "software-only" *** BMIRIDS has a 2.-steradian (sr.) staring field-of-view,two of such systems opposed to one another would provide a complete view of space around the sensor *** addition,its low power consumption makes itself meet the manifold platforms’ *** practice has proved that BMIRIDS can truly realize "omnidirectional" "real-time" situation awareness and dynamic information *** virtue of biomimetic technology,some limitations of the current photoe

关键词： biomimetic technology vision of animal IR fish-eye optics staring IR thermal imaging omnidirectional awareness real-time detection