检索结果-南通市图书馆

Multiple Effects of Energy Issues and Countermeasures: A Case of shandong province

Chinese Journal of Population,Resources and Environment 2008年第4期6卷 88-94页

作者： Wang Chengxin1,2., Wang Gefang3 , Yao Shimou4 1. College of Population, Resources and Environment, shandong Normal University, jinan shandong 2.0014, china 2. research center of cycle economy of shandong province, jinan shandong 250001, china 3. Party School of the shandong Committee of CPC, jinan shandong 2.002., china 4. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing Jiangsu 2.0008, china College of Population Resources and Environment Shandong Normal University research center of {2. economy of shandong province Party School of the shandong Committee of CPC Nanjing Institute of Geography and Limnology Chinese Academy of Sciences

Energy is now becoming the bottleneck of urban and regional development. The paper takes shandong province, one of the most energy consuming provinces in china, as an example, uses quantity methods such as SPSS (Stastics Package for Social Science) cluster sampling and regression analysis, and applies quantity analysis, to analyze the situation of energy issues in shandong province. The conflicts between the quick industrialization and increasing extensive economic development, between urban population and energy consuming per head, between the infinite energy consuming desire and the low level of managing system, and between the unstable world energy supply and the limited energy storage in china are the main factors of energy crisis in shandong, which not only results in energy shortage, but also becomes the barrier of economic and social development. In order to ensure sufficient energy supply for shandong province in the 2.st century, we should take countermeasures, such as changing the economic development model, pursuing a multiple and high quality energy strategy, improving the intensive urbanization strategy, and building a scientific energy system.

关键词： energy effects countermeasure shandong province

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Present Development Situation of Transgenic Crops and Effect on Ecological Environment

引用

Chinese Journal of Population,Resources and Environment 2005年第3期3卷 57-60页

作者： Wen Wujun 1 & Liang Hongming 2.1 research center for Sustainable Development of {2. province, jinan 2.0014, china 2.Yingda Science and Technology Co. Ltd., Luneng Group, jinan 250001, china research center for Sustainable Development of {2. province Jinan 250014 China Yingda Science and Technology Co. Ltd Luneng Group Jinan 250001 China

The present development situation of transgenic crops and their effect on ecological environment are introduced in the paper. Some relevant strategies for their future and how to control the risks of ecological enviro... 详细信息

关键词： transgenic crop ecological environment present conditions effect

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Powder Forging of a Motorcycle Connecting Rod

引用

Journal of Materials Science & Technology 2002年第6期18卷 544-548页

作者： Guangchun WANG and Guoqun ZHAOMold & Die Engineering Technology research center, {2. University (Southern campus), jinan 2.0061, china Die Eng. Technol. Res. Cent. Shandong Univ. Ji'nan 250061 China

A motorcycle connecting rod is one of the major moving parts affecting the engine performance. The traditional manufacturing process results in material waste and excessive machining. A new method of hot forging P/M has been proposed and studied experimentally. In order to achieve uniform density, the punch was divided into three parts to consolidate the loose powder. The multistage movement of the three parts of the punch, called synchronous compaction, results in the desired uniform density. Powder flow during consolidation was illustrated and the density distribution of the compacts was measured. A set of forging dies with flash was used to produce densification and deformation of the sintered compact. Then a set of flashless forging dies was designed to obtain the desired shape and dimensions of the connecting rod. The effects of forging temperature and initial compact density on densification were evaluated through hot forging experiments. Based on properties achieved, Fe-C-Cu-Mo was selected as the

关键词： Powder metallurgy Connecting rod Powder forging

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Analysis of the carbon source for diamond crystal growth

引用

Chinese Science Bulletin 2008年第6期53卷 937-942页

作者： LI Li1,2. XU Bin2.3 & LI MuSen1,2.1 School of Materials Science & Engineering, shandong University, jinan 2.0061,{2. 2.shandong Engineering research center for Super Hard Materials, Zoucheng 2.3500,{2. 3 School of Materials Science & Engineering, shandong Jianzhu University, jinan 2.0101,{2. School of Materials Science & Engineering Shandong University Jinan China shandong Engineering research {2. for Super Hard Materials Zoucheng China School of Materials Science & Engineering Shandong Jianzhu University Jinan China

The lattice constants of diamond and graphite at high pressure and high temperature (HPHT) were calculated on the basis of linear expansion coefficient and elastic constant. According to the empirical electron theory of solids and molecules (EET), the valence electron structures (VESs) of diamond, graphite crystal and their common planes were calculated. The relationship between diamond and graphite structure was analyzed based on the boundary condition of the improved Thomas-Fermi-Dirac theory by Cheng (TFDC). It was found that the electron densities of common planes in graphite were not continuous with those of planes in diamond at the first order of approximation. The results show that during the course of diamond single crystal growth at HPHT with metal catalyst, the carbon sources forming diamond structure do not come from the graphite structure directly. The diamond growth mechanism was discussed from the viewpoint of valence electron structure.

关键词：钻石晶体生长石墨碳源价电子结构

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Development Path of Urban-rural Integration

引用

Asian Agricultural research 2012年第5期4卷 53-59,63页

作者： GAO Zheng shandong Electric Power Corporation,jinan {2.,china

The urban and rural areas are regarded as two major components of the regional economic system. Only through joint balanced development of the two can we achieve overall economic optimization and social welfare maximization. But the great social division of labor has separated urban areas from rural areas,which casts the shadow of city-oriented theory on cooperative relations between urban and rural areas. Mutual separation between urban and rural settlements and independent development trigger off a range of social problems. We must undertake guidance through rational development path of urban-rural integration,to eliminate the phenomenon of urban-rural dual structure,and promote the sustainable development of population,resources and environment in urban and rural areas as soon as possible.

关键词： Urban-rural integration Dual structure Development

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

research Note

引用

Acta Seismologica Sinica(English Edition) 1996年第1期9卷 147-155页

作者： CUI YING ZHOU 1) , YU XIA ZHANG 2. , HONG WEI WANG 1) and LI QIANG JIAO 2. 1) Seismological Bureau of shandong province, {2. 2.002., china 2. center for Analysis and Prediction, SSB, Beijing 100036, china

Ｃｏｍｐｒｅｈｅｎｓｉｖｅｉｎｄｉｃｅｓｏｆｅａｒｌｙｊｕｄｇｅｍｅｎｔｆｏｒｅａｒｔｈｑｕａｋｅｓｅｑｕｅｎｃｅｔｙｐｅｂｙｐａｔｅｒｎｒｅｃｏｇｎｉ┐ｔｉｏｎＣＵＩ－ＹＩＮＧＺＨＯＵ１）（周翠英），ＹＵ－ＸＩＡ... 详细信息

Ｃｏｍｐｒｅｈｅｎｓｉｖｅｉｎｄｉｃｅｓｏｆｅａｒｌｙｊｕｄｇｅｍｅｎｔｆｏｒｅａｒｔｈｑｕａｋｅｓｅｑｕｅｎｃｅｔｙｐｅｂｙｐａｔｅｒｎｒｅｃｏｇｎｉ┐ｔｉｏｎＣＵＩ－ＹＩＮＧＺＨＯＵ１）（周翠英），ＹＵ－ＸＩＡＺＨＡＮＧ２）（张宇霞），ＨＯＮＧ...

关键词： earthquake sequence pattern recognition comprehensive diagnostic index.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Changes in hippocampal neurons and memory function during the developmental stage of newborn rats with hypoxic-ischemic encephalopathy

引用

Neural Regeneration research 2006年第8期1卷 681-684页

作者： Chuanjun Liu1, Yue Li2. Huiying Gao3 1Department of Pediatric Internal Medicine, Taian Health center for Women and Children,Taian 2.1000, shandong {2., china 2.epartment of Anatomy, 3Department of Histology and Embryology, Taishan Medical College, Taian 2.1000, shandong {2., china Department of Pediatric Internal Medicine Taian Health Center for Women and Children Taian 271000 Shandong Province China Department of Anatomy Taishan Medical College Taian 271000 Shandong Province China Department of Histology and Embryology Taishan Medical College Taian 271000 Shandong Province China

BACKGROUND: Under the normal circumstance, there exist some synapses with inactive functions in central nervous system (CNS), but these functions are activated following nerve injury. At the early stage of brain injury, the abnormal functions of brain are varied, and they have very strong plasticity and are corrected easily. OBJECTIVE: To observe the changes of neuronal morphology in hippocampal CA1 region and memory function in newborn rats with hypoxic-ischemic encephalopathy(HIE) from ischemia 6 hours to adult. DESIGN: Completely randomized grouping, controlled experiment. SETTING: Taian Health center for Women and Children; Taishan Medical College. MATERIALS: Altogether 12. seven-day-old Wistar rats, of clean grade, were provided by the Experimental Animal center, {2. University of Traditional Chinese Medicine. Synaptophysin (SYN) polyclonal antibody was provided by Maixin Biological Company, Fuzhou. METHODS: This experiment was carried out in the Laboratory of Morphology, Taishan Medical College between October 2.00 and December 2.03. ① The newborn rats were randomly divided into 2.groups: model group and control group, 60 rats in each group. Five rats were chosen from each group at postoperative 6 hours, 2. hours, 72.hours, 7 days, 2.weeks and 3 weeks separately for immunohistochemical staining. Fifteen newborn rats were chosen from each group at postoperative 4 weeks and 2.months separately for testing memory ability (After test, 5 rats from each group were sacrificed and used for immunohistochemical staining)② The right common carotid artery of newborn rats of model group was ligated under the anesthetized status. After two hours of incubation, the rats were placed for 2.hours in a container filled with nitrogen oxygen atmosphere containing 0.08 volume fraction of oxygen, thus, HIE models were created; As for the newborn rats in the control group, only blood vessels were isolated, and they were not ligated and hypoxia-treated. ③ Thalamencephal tissue se

关键词： Changes in hippocampal neurons and memory function during the developmental stage of newborn rats with hypoxic-ischemic encephalopathy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

北京申奥宣传中应体现可持续发展理念的几点建议

引用

中国人口·资源与环境 2001年第1期11卷 75-76页

作者： Sustainable Development research center of {2. province 山东省可持续发展研究中心

可持续发展已经作为一种理念成为全人类的共识和共同的追求。北京申奥应集中体现中国作为发展中国家的特点 ,用可持续发展理念来指导绿色奥运、人文奥运、科技奥运 ,打好三结合这张牌。

关键词：可持续发展北京奥林匹克运动会绿色奥运人文奥运科技奥运

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of heparin on liver fibrosis in patients with chronic hepatitis B

引用

World Journal of Gastroenterology 2003年第7期9卷 1611-1614页

作者： Jun Shi Jing-Hua Hao Wan-Hua Ren Ju-Ren Zhu, center for Liver Diseases, shandong Provincial Hospital, {2. 2.002., shandong province, china center for Liver Diseases Shandong Provincial Hospital 342 Jing Wu Wei Qi Road Jinan 250021 Shandong Province China. sdshij@***

AIM: To evaluate the effects of heparin on liver fibrosis in patients with chronic hepatitis B. METHODS: Fifty-two cases under study were divided into two groups, group A and group B. The two groups were given regular treatment and heparin/Iow molecular weight heparin (LMWH) treatment respectively. Hepatic functions,serum hyaluronic acid (HA) and type IV collagen levels were measured before and after the treatment, and six cases were taken liver biopsy twice. RESULTS: After treatment, hepatic functions became significantly better in both groups. Serum HA and type IV collagen levels in group B compared with group A, decreased significantly after treatment. Collagen proliferation also decreased in group B after treatment. CONCLUSION: Heparin/LMWH can inhibit collagen proliferation in liver tissues with hepatitis B,

关键词：慢性乙型肝炎肝纤维化低分子量肝素胶原质

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Error analysis of the semi-discrete local discontinuous Galerkin method for semiconductor device simulation models

引用

Science china Mathematics 2010年第12期53卷 3255-3278页

作者： LIU YunXian 1, & SHU Chi-Wang 2.1 School of Mathematics, shandong University, jinan 2.0100,{2. 2.Division of Applied Mathematics, Brown University, Providence, RI 02.12. USA 1. School of Mathematics Shandong University Jinan 250100 China2. Division of Applied Mathematics Brown University Providence RI 02912 USA

In this paper we continue our effort in Liu-Shu (2.04) and Liu-Shu (2.07) for developing local discontinuous Galerkin (LDG) finite element methods to discretize moment models in semiconductor device simulations. We consider drift-diffusion (DD) and high-field (HF) models of one-dimensional devices, which involve not only first derivative convection terms but also second derivative diffusion terms, as well as a coupled Poisson potential equation. Error estimates are obtained for both models with smooth solutions. The main technical difficulties in the analysis include the treatment of the inter-element jump terms which arise from the discontinuous nature of the numerical method, the nonlinearity, and the coupling of the models. A simulation is also performed to validate the analysis.

关键词： local discontinuous Galerkin method error estimate semiconductor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：