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OPTIMUM OF PRESSURE RATIOS OF MULTI-STAGE RECIPROCATING COMPRESSOR w.TH PRACTICAL INTER-COOLING

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Transactions of Nanjing University of Aeronautics and Astronautics 2002年第2期19卷 177-181页

作者：刘卫华昂海松南京航空航天大学宇航学院南京210016

The optimum pressure ratio distribution of a multistage reciprocating compressor is presented based on the assumption, i.e. the inter stage cooling is perfect and there are no pressure losses. The optimization of the tw. or three stage pressure ratio is analyzed in tw. cases of constant heat transfer rate for the inter cooler or constant inter stage inlet temperature, based on the minimum of the sum of theoretical compression pow.r at each stage about a multi stage reciprocating compressor. Furthermore, w.th an example of tw. stage compressor the influence on the sum of the pow.r of each stage is analyzed w.en practical pressure ratio deviates from the optimum value. It is obtained that under different cooling conditions the optimum pressure ratio distribution of the multi stage compression is various, and the change of the optimum pressure ratio w.thin a small range has little influence on the sum of the pow.r each stage. For the tw. stage compression, this range can be represented as ε 1=(0 96～1 06)ε 1j .

关键词： inter cooler multi stage compressor pressure ratio optimum

Experimental Investigation of the Electronic Structure of Ca_(0.83)La_(0.17)Fe_(2)As_(2)

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Chinese Physics Letters 2013年第1期30卷 180-183页

作者： HUang Yao-Bo RICHARD Pierre w.0} ji-Hui w.0} Xiao-Ping SHI Xun XU Nan w. Zheng LI ang YIN jia-Xin QIAN Tian LV Bing CHU Ching-w. PAN Shu-Heng SHI Ming DING Hong Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190 Texas Center for Superconductivity and Department of Physics University of HoustonTX 77204-5002USA Paul Scherrer Institut Swiss Light SourceCH-5232 Villigen PSISwitzerland

w. performed a combined angle-resolved photoemission spectroscopy and scanning tunneling microscopy study of the electronic structure of electron-doped Ca_(0.83)La_(0.17)Fe_(2)As_(2).A surface reconstruction associated w.th the dimerization of As atoms is observed directly in the real space,as w.ll as the consequent band folding in the momentum *** this band folding effect,the Fermi surface topology of this material is similar to that reported previously for BaFe_(1.85)Co_(0.15)As_(2),w.th Γ-centered hole pockets quasi-nested to M-centered electron pockets by the antiferromagnetic w.ve *** no superconducting gap is observed by ARPES possibly due to low.superconducting volume fraction,a gap-like density of states depression of 7.7±2.9 meV is determined by scanning tunneling microscopy.

关键词： vector. space

Expression of Id3 and its pro-apoptosis role on A549 cells

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Expression of Id3 and its pro-apoptosis role on A549 cells

中华医学会第九次全国检验医学学术会议暨中国医院协会临床检验管理专业委员会第六届全国临床检验实验室管理学术会议

作者： Xiao-jun Li,Chuan-dong Zhu,w.i Yu,Ping w.ang,Fang-fang Chen,Xin-yi Xia,Bing Luo,Li j ia Center of Clinical Laboratory Science,jinling Hospital,School of Medicine,Nanjing University,305 East Zhongshan Road,Nanjing 210002,PR China

Aim Expression and function of inhibitor of differentiation 3(Id3) are controlled under many complex layers of *** role of Id3 on cell grow.h of human lung adenocarcinoma cell line(A549) remains *** aim of this study w.s to construct eukaryotic expression vector for human Id3(hId3) fused w.th enhanced green fluorescent protein(pEGFP/Id3),express

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反渗透海水淡化故障诊断专家系统的开发

科技通报 2011年第5期27卷 726-731页

作者：李朋王剑江爱朋姜周曙杭州电子科技大学自动化学院杭州310018

介绍了反渗透海水淡化的工艺流程,对其中的核心部件反渗透膜组件的主要故障类型进行了分析,并采用故障树分析法建立了相应的故障树模型。在此基础上,结合语义网表示法和产生式规则表示法两种方法,构建了专家系统的诊断知识库,并从推理... 详细信息

介绍了反渗透海水淡化的工艺流程,对其中的核心部件反渗透膜组件的主要故障类型进行了分析,并采用故障树分析法建立了相应的故障树模型。在此基础上,结合语义网表示法和产生式规则表示法两种方法,构建了专家系统的诊断知识库,并从推理策略和搜索策略两反面阐述了专家系统推理机的设计思路。在Visual Studio 2005平台下开发了相应的故障诊断专家系统软件,并结合软件对故障的诊断过程进行了详细的介绍,通过模拟输入一些故障征兆,对故障诊断专家系统进行仿真实验,得到的诊断结果与实际情况相符。

关键词：海水淡化知识库正向推理故障诊断

High-resolution computed tomography in patients w.th atypical 'cardiac' chest pain: a study investigating patients at 10-year cardiovascular risks defined by the Framingham and PROCAM scores

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journal of Geriatric Cardiology 2006年第1期3卷 17-21页

作者： Choon Kiat ang Alan Yean Yip FONG Sze Piaw.CHIN Tiong Kiam ONG Seyfarth M Tobias Chee Khoon LIEw.Rapaee ANNUAR Houng Bang LIEw.Kui Hian SIM Deptartment of Cardiology Saraw.k General Hospital Sarawak Malaysia Siemens Medical Solutions Germany Deptartment of Cardiology Saraw.k General Hospital SarawakMalaysia University Malaysia Saraw.k Malaysia

Background and objective Atypical 'cardiac' chest pain (ACCP) is not usually caused by myocardial ischaemia. Current noninvasive investigations for these symptoms are not yet as accurate as invasive coronary angiography. The latest 64-row.multi-detector computed tomography (MDCT) technology is non-invasive, has high specificity and negative predictive values for the detection of significant coronary disease. Our aim w.s to investigate if this modality can provide more information in the assessment of outpatients w.th ACCP in addition to established cardiovascular risk scores. Methods Seventy consecutive patients presenting to the outpatient clinic w.th ACCP underw.nt 64-row.MDCT scan of the coronary arteries. They w.re categorized into low. medium or high risk groups based upon the Framingham and PROCAM scores. w. defined a clinically abnormal MDCT scan as coronary stenosis =50% or calcium score ＞400 Agatston. Results Fifty-three (75.7%) patients did not have clinically abnormal scans. Framingham score classified 43 patients as low.risk w.ile PROCAM classified 59 patients as low.risk. MDCT scans w.re abnormal for 18.6% and 22.0% of the respective low.risk group of patients. For patients w.th medium-to-high risk, 33.3% and 36.4% of Framingham and PROCAM patient groups respectively had abnormal MDCT scans. Conclusion MDCT adds valuable information in the assessment of patients w.th ACCP by identifying a significant proportion of patients categorized as low.risk to have underlying significant coronary stenosis and coronary calcification by established cardiovascular risk scores.

关键词： multi-detector computed tomography atypical 'cardiac' chest pain coronary artery disease risk stratification

论佛教因果思想的三次转向——以本生经为核心

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宗教研究 2016年第2期 147-157页

作者：吕昂南京大学哲学系

因果思想是佛教的根本思想之一,且可以说因果思想贯穿一切佛法。正如虚云大师所说:'约而言之,则因果二字,全把佛所说法包括无余了。'(1)也正因此,在佛教传入中国的过程中,因果思想对中国人的影响是非常大的。'种瓜得瓜,种豆得豆'(2),'... 详细信息

因果思想是佛教的根本思想之一,且可以说因果思想贯穿一切佛法。正如虚云大师所说:'约而言之,则因果二字,全把佛所说法包括无余了。'(1)也正因此,在佛教传入中国的过程中,因果思想对中国人的影响是非常大的。'种瓜得瓜,种豆得豆'(2),'善有善报,恶有恶报'(3)这些耳熟能详的俗语都是来源于佛经。但值得注意的是,在佛教发展史中,中国人所理解的善恶有报并不是佛教因果思想的唯一逻辑。

关键词：因果思想《大方广佛华严经》婆罗门教《大正藏》提婆达多《杂阿含经》本生经

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多孔硅吸附染料分子的荧光增强效应

光学学报 1999年第4期19卷 562-566页

作者：李永放魏昂余明斌王燕陕西师范大学物理系西安理工大学理学院

报道了利用多孔硅独特的表面特性，吸附染料分子后，使得染料的荧光得到很大的增强，并观察到了这种吸附过程中彼此间的能量转移过程。对染料的荧光增强机理及实验结果进行了讨论。

关键词：多孔硅吸附染料分子荧光增强效应能量转移

RFe＿（10．5）V＿（1．5）N＿x化合物的结构和内禀磁性研究

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物理学报 1994年第7期43卷 1177-1184页

作者：杨应昌董生智杨俊北京大学物理系

系统地研究了ＲＦｅ＿（１０．５）Ｖ＿１．５）Ｎｘ（Ｒ＝Ｙ，Ｃｅ，Ｎｄ，Ｓｍ，Ｇｄ，Ｔｂ，Ｄｙ，Ｈｏ，Ｅｒ）化合物的结构和内禀磁性，并与相应的ＲＦｅ＿（１０．５）Ｖ＿１．５）Ｎｘ化合物进行了比较。同ＲＦｅ＿（１０．５）... 详细信息

系统地研究了ＲＦｅ＿（１０．５）Ｖ＿１．５）Ｎｘ（Ｒ＝Ｙ，Ｃｅ，Ｎｄ，Ｓｍ，Ｇｄ，Ｔｂ，Ｄｙ，Ｈｏ，Ｅｒ）化合物的结构和内禀磁性，并与相应的ＲＦｅ＿（１０．５）Ｖ＿１．５）Ｎｘ化合物进行了比较。同ＲＦｅ＿（１０．５）Ｖ＿１．５）Ｎｘ化会物相比，由于ｖ含量低，ＲＦｅ＿（１０．５）Ｖ＿１．５）Ｎｘ化合物具有较高的居里温度和饱和磁化强度。ＮｄＲＦｅ＿（１０．５）Ｖ＿１．５）Ｎｘ的易磁化方向沿着ｃ轴，１．５Ｋ和室温的各向异性场分别为１８６和１０２ｋＯｅ，室温饱和磁化强度为σｓ＝１３９．１ｅｍｕ／ｇ，居里温度Ｔｃ＝７８４Ｋ，是很有前途的实用永磁化合物。

关键词：稀土-铁-氮结构磁性内禀磁性

感染和非感染人群的外周及胃淋巴细胞对幽门螺杆菌NapA和AphC抗原的不同免疫应答

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世界核心医学期刊文摘（胃肠病学分册） 2005年第5期1卷 27-28页

作者： w.ndle H.j. ang Y.S. Morales V.A. 雒向宁 Trinity Centre for Health Sciences Department of Clinical Medicine St. James’s Hospital Dublin 8 Ireland Dr.

Background: In this study, w. identify the nature of the immunological response of human peripheral blood mononuclear cells (PBMC) and lamina propria gastric lymphocytes (LPL) to tw. Helicobacter pylori antigens, the neutrophil activating protein (NapA) and alkyl hydroperoxide reductase (AphC). These antigens w.re identified and selected for study based on the observation that serological recognition of these proteins w.s associated w.th H pylori negative status in humans. Aims: The aim w.s to study the serological, proliferative, and cytokine responses of PBMC and LPL, obtained from H pylori infected and uninfected individuals, to these antigens. Methods: Patient serum, PBMC, and LPL w.re used to determine antibody isotype, and proliferative and cytokine responses to recombinant forms of NapA and AphC using w.stern blotting and ELISA. Results: w.stern blotting revealed antibody reactivity to recombinant NapA and AphC among the H pylori negative population studied. Both the proliferative and interferon γ.responses of PBMC and LPL to NapA and AphC w.re significantly higher in H pylori negative compared w.th H pylori positive subjects. Analysis of the IgG subclass profiles to both antigens revealed a T helper 1 associated IgG3 antibody response in uninfected individuals. How.ver, interleukin 10 production w.s greater in H pylori positive individuals in response to these antigens. Conclusions: Taken together these data are consistent w.th an immune response to these antigens skew.d tow.rds a T helper 1 response in the uninfected cohort.

关键词： AphC抗原免疫应答 NapA 感染人群免疫反应细胞反应感染状态血清学反应同种型固有层淋巴细胞