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武汉理工大学学报 2004年第3期26卷 86-87,93页

作者：邱少强王惠敏闫玉华中国人民大学信息学院北京100872 武汉理工大学生物中心武汉430070

运用两维自动回归模型、分形维数、均值和方差从每一小区域的数据中抽取纹理特征 ,把纹理特征作为自组织特征映射神经网络的输入层进行训练确定最优的纹理区域分割数 ,最后运用遗传算法优化图像分割。

关键词：神经网络遗传算法图像分割纹理特征

SPR Biochip and Detection System for Tuberculosis Bacillus

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SPR Biochip and Detection System for Tuberculosis Bacillus

A perspective study and financial analysis of different protocols of second trimester maternal serum screening for Down's syndrome

第2.世界华人生物医学工程研讨会

作者： Chii-Wann Lin Hsin-Chih Lai Chih-Kung Lee Shi-Ming Lin Institute of biomedical engineering Department of Electrical engineering Department of Medical Technology Institute of Applied Mechanics center of Optoelectronic Biomedicine center for Nano Science and Technology National Taiwan univer.ity Taipei Taiwan china.

Traditional Tuberculosis Bacillus (TB) diagnostic techniques, such as acid-fast stain, bacteria culture, metabolic monitoring have some disadvantages, i.e. low sensitivity, long waiting time and low

关键词： protein chip SPR Tuberculosis bacillus

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生殖医学杂志 2010年第A2期19卷 15-19页

作者：戚红王燕卢新刘敏 Prenatal screening center Haidian Maternal & Children Health Hospital

Objective:To compare the efficiency and related financial parameters of the double- and triple-marker test for the second-trimester maternal serum screening for Down's syndrome. Methods:The serum samples were collected from the 2.(nd) trimester pregnant women in this hospital and were examined for three biomedical markers[alpha-fetoprotein(AFP),freeβ-human chorionic gonadotropin(freeβ-hCG) and unconjugated estriol(uE_3)]by *** pregnancy outcomes were followed up and screening efficiency calculated for double-marker(AFP+freeβ-hCG) and triple-marker(AFP+ freeβ-hCG+uE_3) test. Results:(1)A total of 4,707 serum samples of 2.(nd) trimester pregnancy were collected in this study,of which 4,2.5 pregnancy outcomes got followed up by May 30,2.09,with 462.cases lost to *** follow-up rate was 90.2..3 cases of Down's syndrome,4 cases of other chromosome abnormalities and 1 case of neural tube defect (NTD) were *** was no medically induced miscarriage by invasive tests.(2. Detection rate and false positive rate of triple marker test for Down's syndrome screening were 66.7%and 5.2.%,respectively,while those in double marker test were 33.3%and 4.01%,*** detection rate of all chromosome abnormalities was 75%in triple marker test and 37.5%in double marker *** detection rate of NTD was 100%either in double or triple marker test.(3) It costs 499,375 RMB to avoid one Down's syndrome birth by using triple marker test and 781,2.0 RMB by using double marker test. Conclusion:Triple-marker test is superior to double marker test in 2.d trimester maternal serum screening for Down's syndrome,and costs less to avoid a Down's syndrome birth.

关键词：唐氏综合征财务分析人绒毛膜促性腺激素血清筛查孕妇透视图指标测试

Protective Effects of Dimethyl-4,4'-Dimethoxy-5,6,5',6'-Dimethylene Dioxybiphenyl-2.2.-Dicarboxylate on Damages of Isolated Rat Hepatocytes Induced by Carbon Tetrachloride and D-galactosamine

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biomedical and Environmental Sciences 1992年第3期5卷 185-194页

作者： FU TIEBO AND LIU GENGTAODepartment of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, beijing 100050,chinaFox Chase Cancer {2.. 7701 Burholme Avenue. Philadelphia, Pennsylvania 19111, USA.To whom correspondence should be addressed. Department of Pharmacology Chinese Academy of Medical Sciences Beijing.

The protective effect of biphenyl dimethyl dicarboxylate (DDB) on chemically induced damages was studied in isolated suspended rat hepatocytes. The experimental results showed that DDB (2.0μg/106 cells) efficiently protected the hepatocytes against carbon tetrachloride (CC14 10 mrnol.L-1) and D-galactosamine (1 mmol.L-1) induced damages. Membranal lipid peroxidation (malondialdehyde, MDA formation) and glutamic pyruvic transaminase (GPT) release from the hepatocytes were markedly decreased. The damage of the cell surfaces of the hepatocytes were also reduced as seen under a scanning electron microscope (SEM). Pretreatment with DDB (300 mg-kg-1) orally ameliorated the reduction of liver glycogen and blood glucose caused by ip injection of D-galactosamine (800 mg-kg-1) in mice. When normal rats were given DDB 300 mg-kg-1 once daily for 10 d, the free ribosomal protein and RNA in the liver increased significantly. These results indicate that DDB is of beneficial effects on both damaged and normal hepatocytes.

关键词： Protective Effects of Dimethyl-4,4 Dimethylene Dioxybiphenyl-2.2 Dicarboxylate on Damages of Isolated Rat Hepatocytes Induced by Carbon Tetrachloride and D-galactosamine Dimethoxy-5,6,5

Structural insights into a dual-specificity histone demethylase ceKDM7A from Caenorhabditis elegans

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Structural insights into a dual-specificity histone demethyl...

Investigation of the Surface Properties of Titanium Biomaterial with Oxide Layer of Rutile Structure

第十七届国际生物物理大会;第十二届中国生物物理大会

作者： Ying Yang~(1,2.3),Lu Zhou~5,Hanqin Lin~6,Degui Chen~6,Yanhui Xu~(1,2.3),Lulu Hu~(2.3),Ping Wang~(2.3),Haifeng Hou~4,Yan Lin~(2.3),Yi Liu~(2.3) 1.Cancer Institute,Shanghai Cancer center,Fudan univer.ity Department of Oncology,Shanghai Medical College,Fudan univer.ity,Shanghai,china 2.School of Life Sciences,Fudan univer.ity,2.0 Han-Dan Road,Shanghai,china 3.Institutes of biomedical Sciences,Fudan univer.ity,Shanghai,china 4.beijing Synchrotron Radiation Facility,Institute of High Energy Physics,Chinese Academy of Sciences, beijing,china 5.School of Pharmacy,Fudan univer.ity,South Chemistry Building,Room 315,82. Zhangheng Road, Shanghai,china 6.State Key Laboratory of Molecular Biology,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai,china

Histone lysine nethylation can be removed by JmjC domain-containing proteins in a sequence- and methylation-state-specific ***,how substrate specificity is determined and how the enzymes are regulated were largely ***... 详细信息

关键词： histone methylation demethylase PHD Jmjc

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Journal of Modern Transportation 1994年第2期11卷 173-180页

作者： Huang Nan Chen Yuanru(Department of Material engineering),Southwest Jiaotong univer.ity, Chengdu 61031,{2.Xiao Jing Xue Zhennan(biomedical engineering Institute),West{2. univer.ity of Medical Sciences,Chengdu 610041,{2.Liu Xianghuai(Shanghai In Department of Mc terial engineering Southwest Jiaotong University Chengdu 610031 China biomedical engineering Institute West China University of Medical Sciences Cheongdu 610041 China Shanghai Institute of Metallurgy Academy of Sciences Shanghai 200050 China

Structural characteristics of titanium oxide layer on titanium matrix wereinvestigated by Rutherford Backscattering Spectroscopy (RBS) , Auger ElectronSpectroscopy(AES) and X- ray diffraction, It has been identified that thetitanium oxide layers have rutile structure. The mechanical properties of itssurface were measured by microhardness test, pin-on-disc wear experiment andscratch adhesion test. The blood-compatibility of the titanium oxide layers ofdifferent thickness was studied by blood clotting time measurement. It is shownthat as the thickness of the titanium oxide layers increases, the surfacemechanical properties and bloodcompatibility of these layers are obviouslyimproved.

关键词： biomaterial titanium blood-compatibility rutile film

VIRTUAL　IMPLANTATION　IN　COMPUTER　ASSISTED　KNEE　SURGERY

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Chinese Journal of biomedical engineering(English Edition) 1995年第3期4卷 144-146页

作者： $$$$T. WANG, G. ZONG(Robotics Research institute, beijing univer.ityof Aeronaustics &. Astronaustics, 100083,{2.)H. LU(Arthritis Clinical and Research center,The People’s Hospital,{2.)M. Fadda(Laboratory of Biomechanics,Institute Orthopaedic Rizzoli

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关键词：

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企业农村劳动力短缺的根源与对策思考

商丘职业技术学院学报 2011年第6期10卷 29-30页

作者：李全喜北京邮电大学马克思主义教学与研究中心北京100876

2.04年以来,许多企业遭遇农村劳动力短缺困境。困境是由"户籍制度、就业制度、权益维护制度、社会保障制度、教育制度"等制度因素以及"社会对农民工的认同感低、劳动力资源稀缺论的缺失、农民工主体的更新换代、新农村建设回拉作用、农... 详细信息

2.04年以来,许多企业遭遇农村劳动力短缺困境。困境是由"户籍制度、就业制度、权益维护制度、社会保障制度、教育制度"等制度因素以及"社会对农民工的认同感低、劳动力资源稀缺论的缺失、农民工主体的更新换代、新农村建设回拉作用、农民工流动成本增高"等非制度因素共同作用的结果。在分析困境产生的制度因素和非制度因素基础上,从政府、社会、企业和农民四个层面提出解决问题的相应对策。

关键词：企业农村劳动力短缺根源对策

浅谈自动洗片机的质量管理──感光度测量方法介绍

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生物医学工程与临床 2000年第2期4卷 115-119页

作者：王佩锞解放军总医院医学工程中心北京100853

自动洗片机质量管理的目的是获得高的胶片图像质量，使自动洗片机的性能始终保持在最佳状态。质量管理的方法是利用标准仪器对胶片感光，经洗片机冲洗，然后对胶片进行测量、记录数据并绘制灰度曲线，结合标准进行评估，调整洗片机的... 详细信息

自动洗片机质量管理的目的是获得高的胶片图像质量，使自动洗片机的性能始终保持在最佳状态。质量管理的方法是利用标准仪器对胶片感光，经洗片机冲洗，然后对胶片进行测量、记录数据并绘制灰度曲线，结合标准进行评估，调整洗片机的工作状态，使所测量胶片的本底灰雾、平均梯度和相对灵敏度等参数都符合或接近ＡＮＳＩ标准所规定的值。本文介绍了洗片机的质量管理方法、感光度测试方法、灰度曲线的评估法及美国ＡＮＳＩ标准对各种摄影方法所要达到的标准数据。同时也介绍了胶片图像质量的最佳化评估法。

关键词：自动洗片机胶片评估本底摄影方法图像质量质量管理 ANSI 标准数据曲线

THE DESIGN,EQUIPMENT DISPOSITION AND MANAGEMENT OF INTENSIVE CARE UNIT

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Chinese Journal of biomedical engineering(English Edition) 1993年第4期2卷 144-144页

作者： Juan Du Dongsheng Tang Medical engineering center,The PLA General Hospital,{2. 100853,china

A good or bad design,equipment disposition and management of Intensive CareUnit (ICU) is one of the important standards which judge the medical *** theinvestment of equipments in ICU is so costly,the problems of how to design ICUcorrectly,how to dispose the equipments in it and how to manage ICU must besolved *** have worked out a set of methods for the above problemsthrough investigating ICU in several hospitals.

关键词： disposition costly worked judge trained instruments guarantee mostly turnover raising