检索结果-南通市图书馆

On　Orthogonal　Latin　Squares　and　Geodetic　Blocks

在线全文

学校读者我要写书评

暂无评论

Systems science and Systems Engineering 1997年第3期7卷 21-29页

作者： LI Xiangwen department of Mathematics, huazhong normal university, {2. 43.070

In this paper, we use the concept of an allowable geodetic block which we propose here and orthogonal latin square to construct geodetic blocks which generalize the construction of Ho jin Lee .

关键词： geodetic block unique vertex shortest path

The Applications of Measurement System for Crankshaft

在线全文

学校读者我要写书评

暂无评论

武汉理工大学学报 2006年第S3期28卷 833-836页

作者： DAI Shangping~1 GAO Li~1 GAO Kai~2.(1.department of Computer science,Central{2. {3. university,wuhan 430079,china. 2.Dongfeng Automobile Company,Shiyan 442.01,china) department of Computer science Central China Normal University Wuhan 430079China Dongfeng Automobile Company Shiyan 442001China

This paper will introduce two types of multi-parameter co-measuring system and their application in the produc- *** first is crankshaft bent deformation measuring machine *** second is the crankshaft pneumatic-electric measur- ing *** have been used in final inspection procedure of automation line for crankshaft of automobie engine with good re- sults,the structure principle and soft clash technological process of the measurement system are presented.

关键词： aerodynamics measurement pneumatic-electricity conversion crankshaft quality control

EXISTENCE　OF　MULTIPLE　SOLUTIONS　AND　BIFURCATIONFOR　CRITICAL　SEMILINEAR　BIHARMONIC　EQUATIONS

在线全文

学校读者我要写书评

暂无评论

Systems science and Mathematical sciences 1995年第4期8卷 319-326页

作者： DENG Yinbin(department of Mathematics,huazhong {2. {3.,wuhan 43.070,china)YANG Jianfu(department of Mathematics,Nanchang {3.,Nanchang 3.0047,china) department of Mathematics Huazhong Normal University Wuhan 430070 China

ＥＸＩＳＴＥＮＣＥＯＦＭＵＬＴＩＰＬＥＳＯＬＵＴＩＯＮＳＡＮＤＢＩＦＵＲＣＡＴＩＯＮＦＯＲＣＲＩＴＩＣＡＬＳＥＭＩＬＩＮＥＡＲＢＩＨＡＲＭＯＮＩＣＥＱＵＡＴＩＯＮＳＥＸＩＳＴＥＮＣＥＯＦＭＵＬＴＩＰＬＥＳＯＬＵＴＩＯ... 详细信息

ＥＸＩＳＴＥＮＣＥＯＦＭＵＬＴＩＰＬＥＳＯＬＵＴＩＯＮＳＡＮＤＢＩＦＵＲＣＡＴＩＯＮＦＯＲＣＲＩＴＩＣＡＬＳＥＭＩＬＩＮＥＡＲＢＩＨＡＲＭＯＮＩＣＥＱＵＡＴＩＯＮＳＥＸＩＳＴＥＮＣＥＯＦＭＵＬＴＩＰＬＥＳＯＬＵＴＩＯＮＳＡＮＤＢＩＦＵＲＣＡＴＩＯＮＦ...

关键词： Biharmonic equation critical exponent multiple solutions bifurcation.

In Vitro Cytotoxicity of Polyphosphoester as a Novel Injectable Alveolar Replacement Material

在线全文

学校读者我要写书评

暂无评论

Journal of huazhong university of {2. and Technology(Medical {2.s) 2008年第5期28卷 604-607页

作者：张智星毛靖冯祥礼肖建中邱进俊 department of Orthodontics Tongji HospitalTongji Medical College Huazhong University of Science and Technology department of Nursing Tongji Medical College Huazhong University of Science and Technology College of Materials science and Engineering Huazhong University of Science and Technology College of Chemistry Huazhong University of Science and Technology

The aim of this study was to investigate the in vitro cytotoxicity of polyphosphoester polymer used as a novel injectable alveolar bone substitutes for controlled delivery of tetracycline. Cell culture medium was exposed to the polymer （0.01-10 mg/mL） for 2. h. The L-92. mouse fibro- blasts were then exposed to the treated cell culture medium for 2. h. Finally, cell viability and growth were assessed by using MTT assay and Alamar Blue assay. No significant cytotoxicity of the polyphosphoester against L-92. mouse fibroblasts was observed at a concentration up to 10 mg/mL （P〉0.05）. The two evaluation methods showed no significant differences （P〉0.05）. This study suggests that polyphosphoester does not demonstrate any significant toxic effects to cells in vitro and has the potential to be used both as a medical device and as scaffolds in tissue engineering applications.

关键词： polyphosphoester cytotoxicity MTT assay Alamar Blue test

PMMR:A Method for Masking Repeats in DNA Fragment Assembly

在线全文

学校读者我要写书评

暂无评论

PMMR:A Method for Masking Repeats in DNA Fragment Assembly

Optical observations of Scorpius X-1 in 2.08:Evidence of rapid variability

2.09 Asia-Pacific Conference on Information Processing

作者： Kui Cai department of Economy and Management wuhan {2. of Technology Huaxia College wuhan hubei 43.2.3.china Jincai Yang department of Computer science huazhong normal university wuhan hubei 430079 china

A method named PMMR（previously merging for masking repeats）is proposed in this paper for masking repeats in DNA fragment *** method firstly identifies and counts the fragments induding a same k-mer substring by scanning the shotgun data ***,it merges these fragments by the same k-mer *** on merging the method can not only mark the position of the repeats,but also reduce the scale of shotgun data *** computer simulations show that the rate of repeats recognition is enhanced in this method,and the CPU time of DNA fragment assembly will be reduced.

关键词： previously merging k-mer substring masking repeats fragment assembly

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

science china(Physics,Mechanics & Astronomy) 2010年第S1期53卷 143-146页

作者： CAO XiaoFeng1,2.YU WenFei1,YAN Zhen1 & SUN Li1 1 Shanghai Astronomical Observatory,Shanghai 2.003.,china 2.Institute of Astrophysics,{2. normal {3.,wuhan 430079,china Shanghai Astronomical Observatory Shanghai China Institute of Astrophysics Huazhong Normal University Wuhan China

Optical observations of Sco X-1 with exposure times around 0.5 s were performed with the 1.56 m telescope of the Shanghai Astronomical Observatory in *** these observations,we studied the fluctuation of the optical flux on three short timescales(5,10,100 s).We found that the standard deviations of fluctuations on these three timescales differ from those of Gaussian distributions by 7 Sigma,5 Sigma and 3.Sigma,*** result suggests that the variations in the intensity on these short timescales differ from pure statistical fluctuations,which,we suggest,is due to the intrinsic variability in the optical emission.

关键词： accretion disks stars:individual(Scorpius X-1) optical:stars

Effect of All-trans Retinoic Acid on Liver Fibrosis Induced by Common Bile Duct Ligation in Rats

在线全文

学校读者我要写书评

暂无评论

Journal of huazhong university of {2. and Technology(Medical {2.s) 2008年第5期28卷 553-557页

作者：王晖但自力江海燕 department of Gastroenterology Pu'ai Hospital Tongji Medical College Huazhong University of Science and Technology department of Gastroenterology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology

The aim of this study was to investigate the effect and possible mechanism of all-trans retinoic acid （ATRA） on liver fibrosis induced by common bile duct ligation （CBDL） in rats. Fifty-three female Wistar rats were randomly divided into 5 groups： sham operation group （group J, 5 animals） and groups A, B, C and D （12.animals in each group）. The rats in groups A, B, C and D were subjected to CBDL to induce liver fibrosis, while those in group J to sham operation. From the 3.d week the rats in groups B, C and D respectively received daily administration of ATRA via gas- tric tube at three different doses [0.1, 1.5 and 7.5 mg/kg body weight （BW）]. Animals were sacrificed at 6th week. Rats＇ liver tissues were observed for pathologic changes under a light microscope. The protein levels of type Ⅰ collagen （COLⅠ）, matrix metalloproteinase-2.（MMP2., MMP13.and tissue inhibitors of metalloproteinase-1 （TIMP-1） in liver tissues were determined by immunohistochemical techniques. The expression levels of TGF-β1 and CTGF mRNA in liver tissues were detected by semi-quantitative reverse transcription-polymerase chain reaction （RT-PCR）. The results showed that loss of {2. hepatic architecture and formation of obvious fibrosis were observed in group A, while ATRA treatment for 4 weeks notably alleviated the pathological changes of hepatocytes. The expres- sion of COL Ⅰ and TIMP-1 proteins in group A was increased, while decreased in ATRA-treated CBDL groups （P〈0.05）. ATRA （1.5 and 7.5 mg/kg BW） reduced the expression levels of COLⅠ protein more greatly than that of 0.1 mg/kg BW （P〈0.05）. ATRA treatment increased the protein levels of MMP2.and MMP13. The expression levels of TGF-β1 and CTGF mRNA in group A were increased. In comparison with group A, the mRNA levels of TGF-β1 and CTGF in ATRA-treated CBDL groups were significantly decreased （P〈0.05）. It was concluded that ATRA could inhibit CBDL-induced liver fibrosis in rats by suppressing the expression of TGF-β1 and CTGF so as to

关键词： liver fibrosis all-trans retinoic acid COL Ⅰ MMP2 MMP13 TIMP-1 CTGF TGF-β1

Microscopic Calculation of Parameters of the sdg Interacting Boson Model for ^(104-110)Pd Isotopes

在线全文

学校读者我要写书评

暂无评论

Chinese journal of nuclear physics 1995年第3期17卷 194-199页

作者： Liu Yong~1 Shi Zhu-yi~2.Dan Han-jou~3.Sang Jian-ping~41 Institute of Particle Physics,huazhong {2. university,{3. 43.0702.department of Physics,Guizhou Institute for Nationalities,Guiyang 55002.3.department of Physics,Xianning Teacher’s College,Xianning 43.0004 department of Physics,{3. university,{3. 43.072 华中师范大学粒子物理所湖北武汉贵州民族学院物理系贵州贵阳 550025 咸宁师范高等专科学校物理系湖北咸宁 437000 武汉大学物理系湖北武汉

The parameters of the sdg interacting boson model Hamiltonian are calculated for the 104-110*** calculations utilize the microscopic procedure based on the Dyson boson mapping proposedby Yang-Liu-Qi and extended to include the g boson *** calculated parameters reproduce thosevalues from the phenomenological *** resulting spectra are compared with the experimental spectra.

关键词： sdg interacting boson model Dyson boson mapping Microscopic investigation

Implication of Reported Viral Hepatitis Incidence Rate Change in hubei Province, china, between 2.04-2.10

在线全文

学校读者我要写书评

暂无评论

Journal of huazhong university of {2. and Technology(Medical {2.s) 2012年第3期32卷 428-433页

作者：胡樱宇传华陈邦华王雷 department of Epidemiology and Biostatistics School of Public Health of Wuhan University wuhan university Global Health Institute Institute of Infectious Disease Control and Prevention Wuhan Center for Disease Control and Prevention Institute of Infectious Disease Control and Prevention Hubei Center for Disease Control and Prevention

This study examined the change of reported incidence rate for viral hepatitis in hubei province, china, between 2.04 to 2.10 to provide scientific evidence for viral hepatitis control. Reported viral hepatitis infection cases were queried from Centre for Disease Control of hubei Province, china. The incidence of viral hepatitis A decreased steadily across the study period. Viral hepatitis B composed 85% of the viral hepatitis cases. When reported incidence rates for chronic hepatitis B increased, the rates of acute and unclassified cases dropped from 2.05 to 2.10. The reported viral hepatitis B incidence rate for males was around 1.5-2.times higher than for females. The average annual percentage change of reported viral hepatitis B incidence rates was 4%. The same index for viral hepatitis C was 2.%. The reported viral hepatitis B incidence rate of people under 2. years old declined over the period. This decrease was mainly attributed to the recent implementation of vaccination plan. Reported incidence rate of viral hepatitis E also rose in those years. Having a better understanding on reported incidence rates of the present surveillance system is important for developing strategies for further prevention of viral hepatitis. In addition, the data showed that a surveillance system that differentiates new and former infected cases will be more effective in providing evidence for disease control.

关键词： viral hepatitis reported incidence rate vaccination prevention