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424篇 您的检索式:作者名="Pressure"
    题名 作者 年代 出处 被引量
1再论冷聚变机理与冷聚变材料的提出显示文摘阐明我过去对冷聚变的思考与机理的提出,现在对此机理进一步进行深入的分析,从而提出了研制冷聚变材料的设想。Gou Qingquan Institute of Atomic and Molecular Sciences at High Temperature and High Pressure, Sichuan Union University, Chengdu 610065 1998原子与分子物理学报1998,15,1:9
2Friction Characteristics of Mechanical Seals with Laser-textured Seal Faces显示文摘Heat generated by friction between faces of mechanica l seals is a major factor that causes deterioration of the seals and shortens th eir service life. Excessive temperature rise can greatly alter the seal geometry and vaporize the sealing fluid, resulting in friction of boundary lubrication. These effects on face seals usually lead to excessive leakage and ultimately ren der the seal inoperable. In order to maintain the reliability of seals, high fri ction and unwanted wear must be avoided. Using the laser-texturing process to produce regular micro-surface structures is a fast and convenient technique compared to some more conventional etching or erosion technique currently used by the seal industry for various grooved face seals. Indeed, by using a pulse laser, better control is obtained on the geometr y, size and pore ratio of seal rings made of metallic or ceramic materials. In t his study, seal rings are made of silicon carbide and carbon. Mating faces of th e rings are polished and only silicon carbide rings are laser-textured. The las er texturing can be controlled to produce spherical pores at selected diameters, depths and pore ratio. The textured rings are then super-polished to remove th e bulges formed on the pores rims. After this process the average pore diameter, pore depth and pore ratio reach the predetermined parameter. Some untextured ri ngs are also treated to the same surface roughness and served as a reference for comparison of the textured rings. A special test rig is used to simulate a mech anical seal system and to measure the effect of the laser texturing on friction and seal performance. Tests are performed at various rotational speeds and vario us axial loads. Compared with the conventional mechanical seals, temperature rise, friction torq ue and friction coefficient of mechanical seals with laser-textured seal faces are much lower. These preliminary results show the potential of improving fricti on performance and increasing seal life with laser-textured seal faces.YU Xin-qi 1,2, HE Song 1, CAI Ren-ling 1 (1. Research Institute of Pressure Vessel and Process Equi pment, East China University of Science and Technology, Shanghai 200237, China 2. College of Mechanical Science and Engineering, Hebei University of Science an d Technology, Shijiazhuang 050018, China) 2002厦门大学学报(自然科学版)2002,41,S1:9
3氢原子团簇与金属氢的形成理论显示文摘系统介绍作者提出的氢原子团簇的形成理论和用该理论所取得的成果,阐明高压合成金属氢的可能性和金属键的本质。Gou QingquanInstitute of Atomic and Molecular Sciences at High Temperature and High pressure, Sichuan Union University, Chengdu 610065, P.R.China 1998原子与分子物理学报1998,0,S1:5
4铁路化工罐车的高压水射流清洗显示文摘介绍了铁路化工罐车的高压水射流清洗系统构成和工作原理.确定了影响高压水射流清洗铁路化工罐车质量的基本参数.对高压水射流清洗工艺与传统的蒸洗工艺作了对比,说明了高压水射流清洗工艺效率高、清洗质量好。High Pressure Water Jet Cleaning Research Group, Engineering Institute of Chemical Defence (Engineering Institute of Chemical Defence, Beijing 102205) 1998化学清洗1998,14,6:3
5Recent development in standards of steels used for pressure vessels in China显示文摘In this paper,five items of standards of steels used for pressure vessels which are issued recently or about to be issued and put into effect have been introduced.The differences of standards mentioned above and the former standards and the primary qualifications have been formulated.These qualifications indicate that,some qualifications of national standards of steels used for pressure vessels are on the international advanced level.ZHANG Xiaohu,GU Xianshang and XU Xiang 1) Hefei General Machinery Research Institute,Hefei 230031,China 2) China National Research Center on Pressure Vessel and Pipeline Safety Engineering,Hefei 230031,China 2010Baosteel Technical Research2010,4,S1:3
6Report of the National High Blood Pressure Education Program Working Group on High Blood Pressure in Pregnancy显示文摘National High Blood Pressure Education Program Working Group on High Blood Pressure in Pregnancy 2000American Journal of Obstetrics and Gynecology2000,,1:2
7Cytoskeletal remodeling 显示文摘Wang X Li F Campbell SE et ak Chronic pressure overload cardiac hypertrophy and failure in guinea pigs: Ⅱ 1999J Mol Cell Cardiol1999,31,:1
8Report on hypertension in diabetes显示文摘National High Blood Pressure Education Program Working Group 1994Hypertension1994,23,2:1
9with ischemic heart disease显示文摘Pascei V etAssociatio of virrlent helicobacter pylori strains with is cthelin and calcitonin gene-related peptide in patients with essential hypertension of different blood pressure grades and their changes after felodipine treatment 1998Circulation1998,97,:1
10, a randomized controlled trial 显示文摘Keenan SP Powers CE McCormack DG Noninvasive positive- pressure ventilation in patients with milder chronic obstructive pulmonary disease exacerbations 2005RespirCare2005,50,5:1
11The fourth report on the diagnosis, evaluation, and treatment of high blood pressure in children and adolescents 显示文摘National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents 2004Pediatrics2004,114,2:1
12The fourth report on the diagnosis, evaluation and treatment of high blood pressure in children and adolescents显示文摘Nalional high blood pressure education program working group on high blood pressure in children and adolescents 2004Pediatrics2004,114,24:1
13The JNC report显示文摘The national high blood pressure education program coordionating committeeon prevention detection evaluationd treatment of highblood pressure 2003JAMA2003,289,:1
14The fourth report on the diagnosis, evaluation, and treatment of high blood pressure in children and adolescents显示文摘National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents 2004Pediatries2004,114,2:1
15Effects of different blood-pressur-lowering regimens on ma jot cardiovascular events: results of prospectively-designed over views of randomised trials显示文摘Turnbull F blood pressure lowering treatment trialists' collabora- tion 2003Lancet2003,362,9395:1
162007 National Pres- sure Ulcer Staging Definition显示文摘National Pressure Ulcer Advisory Panel 2007Would Council of Enterosto- mal Therapists Journal2007,27,3:1
17The fourth report on the diagnosis,evaluation,and treatment of high blood pressure in children and adolescents显示文摘National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents 2004Pediatrics2004,114,24:1
18Effect of aspect multiwall carbon nonotubes on resistancesensitivity of rubber nanocomposites显示文摘Jiang M ratio of pressure Applied J Dang Z M Xu H P 2007Physics Letters2007,91,:1
19Effects of different blood-pressure-lowering regimens on major cardiovascular events: results of prospectively-designed overviews of randomised trials 显示文摘Blood Pressure Lowering Treatment Trialist Collaboration 2003Lancet2003,362,9395:1
20显示文摘Benetos A Thomas F Joly L Pulse pressure amplification a mechanicalbiomarker of cardiovascular risk 2010Journal of the American Collegeof Cardiology2010,55,10:1
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