检索结果-南通市图书馆

Synthesis and Crystal Structure of 3-(4-Ethoxyphenyl)-6-(phenoxymethyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2007年第5期26卷 567-571页

作者： LEI Xin-Xiang LIU Miao-Chang xiao Hong-ping ZHANG An-jiang ZHANG Li-Xue School of Chemistry and Materials Engineering Wenzhou University Zhejiang 325027 China

The title compound C18H16N4O2S has been synthesized by the reaction of 4-amino-3-（4-ethoxyphenyl）-5-mercapto-1,2,4-triazole with phenoxyacetic acid in phospho- rus oxychloride, and characterized by IR, NMR spectra and elemental analysis. Its structure was determined by single-crystal X-ray diffraction. It crystallizes in monoclinic, space group P21/c with a = 1.4903（3）, b = 1.5230（2）, c = 0.9615（16） nm, Z = 4, V = 1.7769（5） nm^3, Dc = 1.317 g/cm^3, μ = 0.201 mm^-1, F（000） = 736, R = 0.0795 and wR = 0.2233. In the title compound, all rings are essentially planar.

关键词： X-ray diffraction crystal structure synthesis,spectral characterization thiadiazole

Stark splitting of intense red emission for Er^(3+)in O_(h) symmetry sites realizing optical temperature sensing in biological applications

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第3期43卷 1263-1274页

作者： Yue Guo Lin-Jun Qin Jing Xu xiao-ping jiang xiao-Yu Yue Yi Hou Hao Shi Li-Xi Wang Qi-Tu Zhang Collage of Materials Science and Engineering Nanjing Tech UniversityNanjing211816China jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing211816China

Optical temperature sensing based on the fluorescence intensity ratio(FIR)of red emission for lanthanide ions holds significant relevance in non-contact temperature measurement for biological *** this study,the perovskite-structured KZnF_(3)is utilized as a host material for Er^(3+)to achieve a high-purity upconversion(UC)red *** observed Stark splitting of the red emission peak provides evidence of the energy level splitting of Er^(3+).Group theory is employed to decompose the spectral branching of Er^(3+)under the point group symmetry of KZnF_(3),allowing for the derivation of Stark splitting energy levels induced by the crystal field *** optical temperature-sensing behavior of the red UC luminescence was investigated,specifically examining the FIR of the splitting sub-peaks,which exhibited an exponential relationship with *** KZnF_(3):Yb^(3+),Er^(3+)demonstrated a relative sensitivity(S_(r))of 0.00182%·K^(-1)at 298 K,highlighting its excellent response to *** vivo bio-thermometry experiments conducted on chicken breast validated the material's ability to penetrate biological tissues and showed its significant sensitivity of the FIR to *** results establish KZnF_(3):Yb^(3+),Er^(3+)as a promising material for optical thermometry in various biological applications.

关键词： KZnF_(3) Er^(3+) Upconversion luminescence Stark splitting Temperature sensing

Extended application of carbon sorbent traps method in mercury concentration measurement in coal-fired power plants

在线全文

学校读者我要写书评

暂无评论

热力发电 2014年第6期43卷 23-31页

作者： ZHONG Li xiao ping jiang Jianzhong GUO Tao GUO An Huaneng Clean Energy Research Institute Co. Ltd. Beijing 100098 China

Acute changes of blood pressure and heart rate induced by a strong earthquake

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

Chinese Medical Journal 2010年第8期123卷 1084-1085页

作者： HE Sen CHEN xiao-ping LI jiang-bo LIN Jian-lan LUO Xue-ju LUO xiao-jia Department of Cardiology West China Hospital Sichuan University Chengdu Sichuan 610041 China

Ahigh death toll during an earthquake comes not only from injuries related to the destruction of buildings or road accidents but also from sudden death resulting from cardiovascular problems, as clearly shown in reports. The increased rate of cardiovascular mortality during an earthquake has been ascribed to the impact of a major emotional stress on the heart, mediated through an increase in cardiac sympathetic activity, and probably including some other neuroendocrine mechanisms. A rise in blood pressure （BP） and heart rate （HR） may be directly responsible for the increased rate of cardiovascular mortality during an earthquake. Previously published studies about the acute changes of BP and HR used indirect information,

关键词： ambulatory blood pressure acute changes earthquake stress

Development and evaluation of a new curriculum based on the Delphi method for master of nursing progranls in China

在线全文

学校读者我要写书评

暂无评论

Chinese Nursing Research 2016年第4期3卷 162-167页

作者： xiao-ping jiang Li Yan Xian-Lan Zheng Xian Liu xiao-Qiong wei Department of Nursing Children's Hospital of Chongqing Medical UniversityChongqing 400014China Department of Intensive Care Unit Children's Hospital of Chongqing Medical UniversityChongqing 400014China

Objective： To develop a new curriculum for a master＇s degree in nursing and provide a reference for nursing education in China. Methods： After a comprehensive literature review and item consolidation, an expert panel developed the initial version of the master＇s degree program objective and curriculum. A three-round Delphi study was subsequently conducted to revise and validate the curriculum. Results： Twenty-six experts participated in the evaluation and validation process. The authority coef- ficient was 0.88, and the Kendall coordination coefficient was statistically significant （X2 test, P 〈 0.01）. The final training objective contained 9 items, covering knowledge, skills and humanistic quality. The final established curriculum contained 22 courses, including 5 public compulsory courses, 5 specialized basic compulsory courses and 12 elective courses for professional development. Conclusions： The present study provided an operational curriculum for a master＇s degree in nursing in China.

关键词： NursingEducationGraduate nursing studentTraining objectiveCurriculumDelphiQuestionnaire

Hot tearing behaviors and in-situ thermal analysis of Mg-7Zn-xCu-0.6Zr alloys

在线全文

学校读者我要写书评

暂无评论

Transactions of Nonferrous Metals Society of China 2018年第8期28卷 1504-1513页

作者： Zhi WANG Ye ZHOU Yi-zhou LI Feng WANG Zheng LIU ping-li MAO xiao-ping jiang School of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China Wanfeng AUTO Holding Group Shaoxing 312000China

Thermal analysis was used to investigate the microstructural evolution of Mg-7 Zn-x Cu-0.6 Zr alloys during solidification. The effect of Cu content（0, 1, 2 and 3, mass fraction, %） on the hot tearing behavior of the Mg-7 Zn-x Cu-0.6 Zr alloys was investigated with a constrained rod casting（CRC） apparatus, equipped with a load sensor and a data acquisition system. The thermal analysis results of Mg-7 Zn-x Cu-0.6 Zr alloy revealed that the alloy consisted of two distinct phases： α-Mg and Mg Zn2. Three distinct peaks were observed in the alloys with Cu addition, which were identified as α-Mg, Mg Zn Cu and Mg Zn2. In addition, the reaction temperature of α-Mg decreased and the reaction temperatures of Mg Zn2 and Mg Zn Cu increased as the Cu content increased. The experimental results of hot tearing demonstrated that the addition of Cu significantly reduced the hot tearing susceptibility（HTS） of Mg-7 Zn-x Cu-0.6 Zr alloys due to the higher eutectic temperature and the shorter solidification temperature region.

关键词： Mg-7Zn-xC-0.6Zr alloy microstructure solidification path hot tearing susceptibility

Plasma pharmacological study on Da Huang Zhe Chong capsule on platelet aggregation of normal person

在线全文

学校读者我要写书评

暂无评论

Journal of Central South University of Technology 2005年第z1期12卷 326-330页

作者： WANG Dong-sheng CHEN Fang-ping xiao Chang-jiang HE Shi-lin FU Bin LI Xin CAO Xing-yu CHEN Yan XIE Qin-zhi Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China Department of Traditional Chinese Medicine Xiangya Hospital Central South University Changsha 410008 China

Objective To develop a plasma pharmacological method evaluates the effect of Da Huang Zhe Chong capsule on platelet aggregation and its mechanism, which is a representative Traditional Chinese Medicine Patent Prescription Promoting blood circulation by removing blood stasis. Methods Platelets specimens from healthy volunteers made serum and plasma with medicine, while platelet PRP were separated, which were divided into 8groups,i.e. auto-serum, allo-serum, serum with Da Huang Zhe Chong capsule , serum with aspirin, auto-plasma, plasma with Da Huang Zhe Chong capsule, plasma with aspirin, every group added to serum and plasma to hatch. After ADP and adrenalin were added into the specimens and hatched, the effects of specimens on platelet aggregation were observed. Results After ADP adrenalin were added, all the serum groups did not present platelet aggregation,while all the plasma group presented platelet aggregation. P1, P5, Pmax, t and TM have no significant difference (P＞0. 05) between auto-plasma group and allo-plasma group induced by ADP and adrenalin. P1, P5, t and Pmax have significant differences (P＜0. 01) and TM decreased significantly (P＜0. 05) comparing plasma group with Da Huang Zhe Chong capsule and plasma group of aspirin to allo-plasma group. P1, t and Pmax have significant difference (P＜0.05), and P5 and TM are simulate comparing plasma group with Da Huang Zhe Chong capsule to plasma group of aspirin. P1, P5, t and Pmax have significant differences (P＜0. 01), P1, TM have also significant(P＜0. 05), comparing plasma group of Da Huang Zhe Chong capsule with plasma of aspirin to allo-plasma group induced by adrenalin. P1 ,P5 and Pmax have significant differences (P＜0.05), and t and Pmax are simulate comparing plasma group with Da Huang Zhe Chong capsule with plasma group of aspirin. Conclusion The serum pharmacological study is inappropriate to study platelet aggregation in vitro. The plasma pharmacological study is inappropriate to study platelet aggrega

关键词： Da Huang Zhe Chong capsule plasma pharmacology platelet aggregation

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

特别市场规制制度的理论体系及其定位

甘肃政法学院学报 2006年第2期 37-43页

作者：肖江平北京大学法学院北京100871

经济法学理论体系的完善需要有对理论体系的恰当判断。正确认识特别市场规制制度的理论体系,恰当处理与市场规制法学中其他制度及其理论的关系,是构建和完善市场规制学体系所需要解决的重要问题之一。本文从特别市场的判断标准及其认定... 详细信息

经济法学理论体系的完善需要有对理论体系的恰当判断。正确认识特别市场规制制度的理论体系,恰当处理与市场规制法学中其他制度及其理论的关系,是构建和完善市场规制学体系所需要解决的重要问题之一。本文从特别市场的判断标准及其认定、特别市场规制制度的体系及其与市场规制法学相关理论的关系等角度,探讨了市场规制法学中特别市场规制制度的理论体系及其定位。

关键词：特别市场规刺法市场规制法学经济法学学科论竞争法

在线全文

学校读者我要写书评

暂无评论

我国收入分配的基本现状、问题及政策建议

特区经济 2010年第12期 216-217页

作者：肖江平中国地质大学湖北武汉430074

收入分配对经济增长有显著地影响,关乎到经济、社会的稳定,本文从收入分配的国家、居民、企业差距,城乡差距,行业差距和区域差距四个方面考察我国收入分配的现状,分析收入分配中存在的问题并提出政策建议。

关键词：收入分配问题政策建议