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期刊小流量工况下离心风机蜗壳内部的三维流动测量分析被引量:24
《西安交通大学学报》2002年第7期688-692,共5页曹淑珍 祁大同 张义云 闻苏平 鲁渝北 邹林 
利用五孔探针对小流量工况下离心通风机大宽度矩形截面蜗壳内部的三维流动进行了详细的测量 ,给出了蜗壳螺旋通道部分的 3~ 8个横截面内比较清晰的时均速度、静压和总压的分布图形 .结果表明 ,在小流量工况下 ,蜗壳内部的二次旋涡在蜗...显示全部
关键词:三维流量测量 离心通风机 蜗壳 小流量工况 二次流动 流速分布 压力分布 
期刊东营凹陷增压减压条件下砂岩储层物性参数的变化规律实验研究被引量:3
《地质科技情报》2016年第1期101-106,共6页吴春燕 张金功 孙志刚 张守春 张津宁 刘琳琳 
中国石化股份有限公司重大基础项目(P06086);中国地质调查局基础地质调查计划项目(12120113040700);国家自然科学基金项目(41302076)
为了研究砂岩储层孔隙度、渗透率、压缩系数与压力的关系以及压缩系数与孔隙度的关系,选取东营凹陷6个砂岩样品进行了增压减压实验,结果表明:砂岩孔隙度和渗透率随压力的升高而降低,随压力的降低而升高,但不会恢复到原始孔隙度和渗透率...显示全部
关键词:压力 孔隙度 渗透率 压缩系数 东营凹陷 
期刊Prediction of Hydraulic Stability of Francis Turbines of Three Gorges Hydropower Station
《人民长江》2001年第S1期5-9,共5页TIAN Zi qinSenior Engineer, Design Institute, Changjiang Water Resources Commission, Wuhan 430010,China LIU Jing wang Professor, Design Institute, Changjiang Water Resources Commission, Wuhan 430010,China 
The Francis turbine of Three Gorges hydropower station is one of the large turbines with great head variation in the world. The operational stability of the turbine has been the top subject for departments of design, ...显示全部
关键词:FRANCIS TURBINE HYDRAULIC stability pressure FLUCTUATION model test Sanxia Multipurpose PROJECT 
期刊The Research Status and Major Problems of High Temperature and High pressure Experiment on Petrogenesis and mineralization
《地质学报:英文版》2017年第S1期296-297,共2页ZHANG Yan HAN Runsheng WEI Pingtang ZHOU Gaoming 
project was jointly funded by the Funds for the program of the National Natural Science Foundation (Noes. 41572060, U1133602);Projects of YM Lab (2011);Innovation Team of Yunnan province and KMUST (2008,2012)
1 Introduction In contrast,1experimental geochemistry is a young subject,but in recent years,the research on experiment of high temperature and high pressure has become an important branch in the parallel subjects of ...显示全部
关键词:In ZHANG The Research Status and Major Problems of High Temperature and High pressure Experiment on Petrogenesis and mineralization HIGH 
期刊Unified analytical solution for deep circular tunnel with consideration of seepage pressure,grouting and lining被引量:2
《中南大学学报:英文版》2017年第6期1483-1493,共11页李学峰 杜守继 陈兵 
Project(51378309)supported by National Natural Science Foundation of China
A new unified analytical solution is presented for predicting the range of plastic zone and stress distributions around a deep circular tunnel in a homogeneous isotropic continuous medium. The rock mass, grouting zone...显示全部
关键词:UNIFIED strength theory (UST) intermediate principal stress SEEPAGE pressure GROUTING LINING analytical solution 
期刊Comparison of invasive dynamic blood pressure between superior mesenteric artery and common carotid artery in rats
《世界急诊医学杂志(英文)》2020年第2期102-108,共7页Rui-ning Liu Xiao-jun Wei Shao-ping Li Cheng Jiang Yan Zhao 
supported by Zhongnan Hospital of Wuhan University Science,Technology and Innovation Seed Fund,Project(cxpy2017039)
The purpose of this study was to identify the consistency of invasive dynamic blood pressure (BP) monitoring between the superior mesenteric artery (SMA) and the common carotid artery (CCA). METHODS: Eight male Spragu...显示全部
关键词:Blood pressure Superior mesenteric artery Common carotid artery Abdominal aorta 
期刊Investigation of a semi-empirical load model of natural gas explosion in vented spaces
《安全科学与弹性杂志(英文)》2021年第3期157-171,共15页Shigang Yang Jiongwei Cai Ya Yang Qin Fang Qi Bao Senpei Wang 
The authors gratefully acknowledge the financial support from Natural Science Foundation of Jiangsu Province of China(Grant No.BK20180081);National Key R&D Program of China(Great No.2020YFB2103300);National Basic Research Program of China(973 Program)(Grant No.2015CB058000).
Due to the influence of many factors,the overpressure-time history load model of vented gas explosions is difficult to describe and is not conducive to further structural design.Based on vented gas explosion test data...显示全部
关键词:Vented gas explosion Load model Overpressure-time history Gas concentration Venting pressure 
期刊均三甲苯液相空气氧化合成均苯三甲酸被引量:1
《现代化工》2003年第10期33-35,45,共4页张卫江 陈舟 付强 田华明 高晓凡 曹咏军 何洪 
研究了在常压下,以醋酸钴和溴化钠为催化体系,均三甲苯液相空气氧化制备均苯三甲酸的反应工艺。利用酸值滴定、红外光谱和液相色谱等表征方法,确定产物为均苯三甲酸。通过对反应器的类型、催化剂、反应温度和时间等因素的考察,确定出该...显示全部
关键词:均三甲苯 均苯三甲酸 液相空气氧化 
期刊论青少年学生的压力应对教育被引量:18
《山东农业大学学报:社会科学版》2004年第2期116-118,共3页刘杰 
本文根据目前青少年学生面临的压力实际,分析了青少年学生压力应对特点及开展压力应对教育的必要性和重要性,探讨了对青少年学生开展压力应对教育的具体措施,包括进行积极认知构建、模拟应对演习、自我减压指导等,帮助青少年学生提高压...显示全部
关键词:青少年学生 压力 应对方式 应对教育 
期刊Functional changes of the heart and lung in perioperative period of orthotopic liver transplantation
《国际肝胆胰疾病杂志:英文版》2002年第3期335-339,共5页Shu-Sen Zheng An-Wei Lu Dong-Sheng Huang Qing-Lian Chen Lin-Zhen Xu the Department of Hepatobiliary Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China 
Objective: To investigate the variation of functions ofthe heart and lung during orthotopic liver transplan-tation (OLT).Methods: Pulmonary artery cannula and right radialartery cannula were indewelled before anaesthe...显示全部
关键词:liver TRANSPLANTATION right CARDIAC CATHETER HEMODYNAMICS CARDIAC output PULMONARY ARTERIAL pressure 
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