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Reliability of GPS network

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中国有色金属学会会刊：英文版 2005年第S1期15卷 187-189页

作者： wang pei-xian, wang Jian-min, SHI Jin-feng (Liaoning Technical University, Fuxin 123000, China)

Both GPS observations and errors have some speciality and complexity. After analyzing characteristics of study on reliability of GPS network, the target of inside and outside reliability of GPS network was deduced, a new reliability theory and outlier analysis method was established based on the correlative analysis theory. The targets of GPS network’s reliability were analyzed and the influence vectors Fi was taken as one of these. As a parameter, the correlative coefficient between Fi and the residual vector V can snoop and remove the outliers. This theory has a good application in correlative observation with multi-outliers analysis.

关键词： GPS network reliability correlative analysis outlier analysis

Expression of tissue factor in rabbit pulmonary artery in an acute pulmonary embolism model

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World Journal of Emergency Medicine 2014年第2期5卷 144-147页

作者： Jing-xia Zhang Yong-li Chen Yu-ling Zhou Qian-yu Guo xian-pei wang Department of Cardiology Tianjin Chest Hospital

BACKGROUND: Tissue factor(TF) is the initiation factor of the extrinsic coagulation pathway, and plays a critical role in the process of thrombosis. This study aimed to investigate the expression of TF and to explore their clinical effect on the pulmonary artery after acute pulmonary ***: Thirty-four Japanese white rabbits(Level II animals) supplied by Tianjin Medical University were randomly assigned into: group A, specimens of the pulmonary artery taken 3 hours after pulmonary embolism(n=8); group B, specimens of the pulmonary artery taken 8 hours after pulmonary embolism(n=8); group C, specimens of the pulmonary artery taken 24 hours after pulmonary embolism(n=8); and control group, pseudo-operations performed without injection of autologous blood clots(n=10). The animal model of pulmonary thrombo-embolism was established by injection of autologous blood clots into the jugular vein through a 5F catheter, and was conf irmed by digital subtraction angiography. The mRNA expression of TF in different parts of the pulmonary artery was accessed by RT-PCR. The q test was used if there was a signif icant difference in a given continuous variable among the three groups assessed by ANOVA. The experiment equipment was supplied by the State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, the Chinese Academy of Medical Sciences and Peking Union Medical ***: The TF expression in the specimen adjacent to emboli was stable at 3, 8 or 24 hours after embolism. The mRNA expression of TF at 3 and 8 hours after embolism was lower in the specimens taken from the distal end of the morbid pulmonary artery than those adjacent to emboli. While at 24 hours after embolism, there were similar mRNA levels in specimens either adjacent or distal to ***: The high level of TF expression in pulmonary artery tissue adjacent to emboli could lead to locally increased coagulation activity, indicating the nece

关键词： Pulmonary embolism Tissue factor Pulmonary Gene expression Thrombus Anticoagulation Thrombolysis Rabbits

Verapamil blocks HERG channel by the helix residue Y652 and F656 in the S6 transmembrane domain

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Acta Pharmacologica Sinica 2007年第7期28卷 959-967页

作者： Jing-jing DUAN~2,Ji-hua MA~(2,4),pei-hua ZHANG~2,xian-pei wang~3,An-rou ZOU~3,Dan-na TU~3~2 Cardio-Electrophysiological Research Laboratory Medical College,Wuhan University of Science and Technology,Wuhan 430081,China ~3 Research Center of Ion Channelopathy,Department of Cardiology,Institute of Cardiovascular Diseases,Union Hospital,Tongji MedicalCollege,Huazhong University of Science and Technology,Wuhan 430022,China Cardio-Electrophysiological Research Laboratory Medical College Wuhan University of Science and Technology Wuhan China Department of Cardiology Research Center of Ion Channelopathy Institute of Cardiovascular Diseases Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China

Aim:The objectives of this study were to investigate the inhibitory action ofverapamil on wild-type（WT） and mutation HERG K+channel current (IHERG),andto determine whether mutations in the $6 region are important for the inhibition ofIHERGby ***:HERG channels （WT,Y652A,and F656A） wereexpressed in oocytes of Xenopus laevis and studied using the 2-electrode volt-age-clamp ***:WT HERG is blocked in a concentration-depen-dent manner by verapamil (half-maximal inhibition concentration [IC50]=5.1 μmol/L),and the steady state activation and inactivation parameters are shifted to morenegative ***,mutation to Ala of Y652 and F656 located on the S6domain produced 16-fold and 20-fold increases in IC50for IHERGblockade,***,the steady state activation and inactivation para-meters for Y652A are also shifted to more negative values in the presence of ***:Verapamil preferentially binds to and blocks open ***-652 and Phe-656,2 aromatic amino-acid residues in the inner （S6）helix,are critical in the verapamil-binding site.

关键词： verapamil HERG K~+ channel voltage clamp

可生物降解聚己二酸-对苯二甲酸丁二酯/聚碳酸丁二酯共混物的制备及其性能

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高分子学报 2024年第11期55卷 1597-1607页

作者：魏鑫王培贤王明亮黄东魏忠宋晓玲王公应王自庆石河子大学化学化工学院/新疆兵团化工绿色过程重点实验室新疆天业(集团)有限公司石河子832001 中国科学院成都有机化学研究所成都610041

以环氧大豆油(ESO)作为聚己二酸-对苯二甲酸丁二酯(PBAT)和聚碳酸丁二酯(PBC)的增容剂,采用熔融共混法制备了一系列PBAT/PBC/ESO复合材料.通过相关表征研究了ESO含量和PBC含量对PBAT/PBC复合材料微观结构和性能的影响.结果表明,ESO中的... 详细信息

以环氧大豆油(ESO)作为聚己二酸-对苯二甲酸丁二酯(PBAT)和聚碳酸丁二酯(PBC)的增容剂,采用熔融共混法制备了一系列PBAT/PBC/ESO复合材料.通过相关表征研究了ESO含量和PBC含量对PBAT/PBC复合材料微观结构和性能的影响.结果表明,ESO中的环氧基团通过与PBAT和PBC的端基发生开环反应,可以提高PBAT与PBC的相容性,提升了复合材料的结晶性能、热稳定性和延展性.当复合材料中ESO含量由0%增加到7.0%时,ESO对复合材料还表现出优异的增塑性能,获得PBAT/PBC复合材料的断裂伸长率由353%提高到805%.另外,PBC的添加可以显著改善PBAT/PBC复合材料的阻隔性能和刚性,因此可以通过改变PBC的含量来调控复合材料的力学性能和阻隔性能.

关键词：聚己二酸-对苯二甲酸丁二酯聚碳酸丁二酯增容生物可降解塑料阻隔性能

Effect of temperature on the hydration process and strength development in blends of Portland cement and activated coal gangue or fly ash

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第2期12卷 162-170页

作者： pei-ming wang xian-ping LIU Key Laboratory of Advanced Civil Engineering Materials (Tongji University) Ministry of Education Shanghai 201804 China

This paper describes the results of an investigation into the effect of the variation of curing temperatures between 0 and 60 °C on the hydration process,pore structure variation,and compressive strength development of activated coal gangue-cement blend(ACGC) . Hardened ACGC pastes cured for hydration periods from 1 to 360 d were examined using the non-evaporable water method,thermal analysis,mercury intrusion porosimetry,and mechanical testing. To evaluate the specific effect of activated coal gangue(ACG) as a supplementary cementing material(SCM) ,a fly ash-cement blend(FAC) was used as a control. Results show that raising the curing temperature accelerates pozzolanic reactions involving the SCMs,increasing the degree of hydration of the cement blends,and hence increasing the rate of improvement in strength. The effect of curing temperature on FAC is greater than that on ACGC. The pore structure of the hardened cement paste is improved by increasing the curing temperature up to 40 °C,but when the curing temperature reaches 60 °C,the changing nature of the pore structure leads to a decrease in strength. The correlation between compressive strength and the degree of hydration and porosity is linear in nature.

关键词： Activated coal gangue (ACG) Fly ash (FA) Blended cement Hydration Curing temperature Strength

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光通信技术在潜艇武器系统中的应用

信息与电子工程 2009年第4期7卷 265-268页

作者：段培贤王蓬陈佶中国船舶工业集团公司船舶系统工程部北京100036

随着光通信技术的发展,其优越性越来越明显,应用也越来越广泛。在对光通信技术的特性进行分析、讨论的基础上,着重对其在潜艇武器系统中的应用进行阐述,并对其存在的问题进行分析,指出需要重点解决的关键技术和研究方向,并对其应用前景... 详细信息

随着光通信技术的发展,其优越性越来越明显,应用也越来越广泛。在对光通信技术的特性进行分析、讨论的基础上,着重对其在潜艇武器系统中的应用进行阐述,并对其存在的问题进行分析,指出需要重点解决的关键技术和研究方向,并对其应用前景进行展望。

关键词：潜艇武器系统光通信光纤参数

Hydration process in Portland cement blended with activated coal gangue

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第7期12卷 503-510页

作者： xian-ping LIU pei-ming wang Min-ju DING Key Laboratory of Advanced Civil Engineering Materials (Tong/i University) Ministry of Education Shanghai 201804 China State Key Laboratory Breeding Base of Crime Scene Evidence Shanghai 200083 China

This paper deals with the hydration of a blend of Portland cement and activated coal gangue in order to determine the relationship between the degree of hydration and compressive strength *** hydration process was investigated by various means:isothermal calorimetry,thermal analysis,non-evaporable water measurement,and X-ray diffraction *** results show that the activated coal gangue is a pozzolanic material that contributes to the hydration of the cement *** pozzolanic reaction occurs over a period of between 7 and 90 d,consuming portlandite and forming both crystal hydrates and ill-crystallized calcium silicate *** hydrates are similar to those found in pure Portland *** results show that if activated coal gangue is substituted for cement at up to 30%(w/w),it does not significantly affect the final compressive strength of the blend.A long-term compressive strength improvement can in fact be achieved by using activated coal gangue as a sup-plementary cementing *** relationship between compressive strength and degree of hydration for both pure Portland cement and blended cement can be described with the same ***,the parameters are different since blended cement produces fewer calcium silicate hydrates than pure Portland cement at the same degree of hydration.

关键词： Activated coal gangue Portland cement Blended cement Hydration Strength

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地尔硫静脉给药治疗高血压急症

中国新药与临床杂志 2002年第12期21卷 724-727页

作者：朱仁贤王培举周勤吴权金山区亭林医院内科上海201505 复旦大学上海医学院基础生物力学研究中心上海200032

目的 :观察地尔硫静脉内给药治疗高血压急症临床疗效。方法 :本院急诊和住院的重度高压病人 38例 (男性 2 0例 ,女性 18例 ,年龄 6 2a±s9a)用地尔硫针剂 10～ 2 0mg加 2 5 %葡萄糖注射液 4 0mL静脉推注。观察用药后 10 ,30 ,6 0 ,1... 详细信息

目的 :观察地尔硫静脉内给药治疗高血压急症临床疗效。方法 :本院急诊和住院的重度高压病人 38例 (男性 2 0例 ,女性 18例 ,年龄 6 2a±s9a)用地尔硫针剂 10～ 2 0mg加 2 5 %葡萄糖注射液 4 0mL静脉推注。观察用药后 10 ,30 ,6 0 ,12 0min血压、心率变化情况。结果 :用药后 10min血压开始下降 (收缩压下降了 1.5kPa± 0 .3kPa ;舒张压下降了 0 .6 1kPa± 0 .2 4kPa) ,30min后收缩压、舒张压明显下降 ,心率减慢 ,1～ 2h降至正常或安全水平 ,总有效率达到 95 %。结论 :地尔硫静脉内注射治疗高血压急症起效快。

关键词：地尔硫Zhuo 高血压静脉内输注

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四川盆地页岩气成藏地质条件

天然气工业 2008年第2期28卷 151-156页

作者：张金川聂海宽徐波姜生玲张培先汪宗余中国地质大学

与传统上的"泥页岩裂缝气"并不完全相同,页岩气是主体上以吸附相和游离相同时赋存于泥岩及页岩地层中的天然气。四川盆地经历了克拉通和前陆盆地演化过程中复杂的构造变动,形成了与美国典型页岩气盆地相似的构造演化特点和地质条件,其... 详细信息

与传统上的"泥页岩裂缝气"并不完全相同,页岩气是主体上以吸附相和游离相同时赋存于泥岩及页岩地层中的天然气。四川盆地经历了克拉通和前陆盆地演化过程中复杂的构造变动,形成了与美国典型页岩气盆地相似的构造演化特点和地质条件,其中的古生界页岩不仅是盆地内常规气藏的烃源岩,而且还是页岩气成藏及勘探的主要对象,目前已发现了页岩气存在的大量证据。根据演化及勘探地质特点,四川盆地非常规天然气具有两分格局,东南部以页岩气为主而西北部以根缘气为主,古生界主体发育页岩气而中生界主体发育根缘气。川东和川南地区(包括川西南)古生界生气页岩发育厚度大、有机质含量高、埋藏深度小,下寒武统和下志留统具有良好的页岩气成藏及勘探地质条件;川中地区同时发育中、古生界烃源岩,上三叠统、下志留统和下寒武统可作为页岩气勘探的有利层位;川西中生界泥/页岩常与致密砂岩形成频繁互层并产生具有砂岩底部含气特点的根缘气,整体上存在着页岩气发育和勘探的远景条件,局部埋藏相对较浅的高碳泥/页岩是页岩气勘探的基本对象。

关键词：四川盆地页岩气成藏条件勘探前景