检索结果-南通市图书馆

Water modeling of molten steel flow in a multi-strand tundish with gas blowing

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2010年第2期17卷 143-148页

作者： Jing Jiang Jing-she Li Hua-jie Wu Shu-feng yang Tao Li Hai-yan tang School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China Engineering Research Institute University of Science and Technology Beijing Beijing 100083 China

Fluid flow characteristics in a four-strand tundish with gas blowing were studied by water modeling *** is found that gas blowing can greatly improve the flow characteristics in the tundish with a turbulence *** dramatically increases the peak concentration time,and greatly decreases the dead volume,and reduces the minimum residence *** gas blowing location,gas flow rate,and porous plug area greatly influence the flow characteristics in the tundish; the gas blowing location near the baffle,smaller gas flow rate,and smaller porous plug area are better for improving the fluid flow *** gas blowing can reduce the difference of flows at the middle outlets and side outlets for the multi-strand *** produced by gas blowing can absorb small inclusions and provide the condition for inclusion collision and ***,introducing gas blowing into a tundish and combining the turbulence inhibitor can improve inclusion floating and removal,and the cleanness of molten steel can be advanced.

关键词： continuous casting tundish water modeling gas blowing porous plug

The Predicament and Reform of the Judicial Review of Administrative Guidance in China

在线全文

学校读者我要写书评

暂无评论

The Predicament and Reform of the Judicial Review of Adminis...

Methods for Thickness Determination of SiC Homoepilayers by Using Infrared Reflectance Spectroscopy

2012年公共管理国际会议

作者： WU Wei-jun tang Xiang-yan School of Political Science and Public Administration University of Electronic Science and Technology of China

ISBN: (纸本)9787564710316

As a new and flexible means of administrative management, administrative guidance has been widely used in the administrative field. The judicial review of administrative guidance is not only the inevitable requirement of no abuse of power, but also the needs of the trust protection doctrine and the principle of rights relief. In the current legislation in China, Suability of administrative guidance is still controversial, the substantive standards and procedural rules of judicial review of administrative guidance is lacked as well. Therefore, we should start from the measures like expanding the scope of administrative litigation, enriching the substantive legislative of administrative guidance and reforming the administrative litigation procedure to improve the design of the system of judicial review of administrative guidance.

关键词： Administrative guidance Nature Necessity Judicial review

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

Chinese Physics Letters 2010年第6期27卷 240-243页

作者： LI Zhi-Yun SUN Ji-Wei ZHANG Yu-Ming ZHANG Yi-Men tang Xiao-yan Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices School of Microelectronics Xidian University Xi'an 710071

Infrared reflectance spectra have been widely used to measure layer thickness based either on calculation or on curve fitting, and two traditional methods for thickness determination have been studied. Considering the disadvantages of those two methods, we propose a new fitting model based on the fitting of the fringe order difference. In comparison with the measured results, the new fitting model shows its superiority not only for its stable and accurate results which have great agreement with the results from SEM, but also for its simple and quick fitting process.

关键词： Thickness Measurement Models Methods

Is mild erectile dysfunction associated with severe psychological symptoms in Chinese patients with moderate-to-severe chronic prostatitis/chronic pelvic pain syndrome?

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2021年第3期23卷 319-324页

作者： Xiu-Cheng Li Xiao-Bo Zhang Zhang-Cheng Liao Zheng-yan tang Dong-Jie Li Departm ent of Urology Xiangya HospitalCentral South UniversityChangsha 410008China Xiangya International Medical Center Department of Geriatric UrologyXiangya HospitalCentral South UniversityChangsha 410008China Provincial Laboratory for Diagnosis and Treatment of Genitourinary System Disease Changsha 410008China Department of Clinical Pharmacology Xiangya HospitalCentral South UniversityChangsha 410008China Hunan Key Laboratory of Pharmacogenetics Institute of Clinical PharmacologyCentral South UniversityChangsha 410078China National Clinical Research Center for Geriatric Disorders Changsha 410008China

This study aimed to assess the association between psychological disorders and erectile dysfunction(ED)in patients with different degrees of chronic prostatitis/chronic pelvic pain syndrome(CP/CPPS).This was a retrospective study conducted from June 2017 to October 2019 and included 182 *** were interviewed using the Structured Interview on Erectile Dysfunction(SIEDY)for pathogenic *** National Institutes of Health-Chronic Prostatitis Symptom Index(NIH-CPSI)and the International Index of Erectile Function-5(IIEF-5)were used for the evaluation of CP/CPPS and *** Generalized Anxiety Disorder-7(GAD-7)and Patient Health Questionnaire-9(PHQ-9)were used to assess anxiety symptoms and depressive *** number of patients with mild CP/CPPS and mild ED,mild CP/CPPS and moderate-to-severe ED,moderate-to-severe CP/CPPS and mild ED,and moderate-to-severe CP/CPPS and moderate-to-severe ED was 69(37.9%),36(19.8%),35(19.2%),and 42(23.1%),*** corresponding PHQ-9 scores of the four groups were 6.22,7.19,10.69,and 7.71,*** corresponding GAD-7 scores of the four groups were 5.26,6.31,8.77,and 6.36,*** patients with moderate-to-severe CP/CPPS,the PHQ-9 and GAD-7 scores of the moderate-to-severe ED group were significantly lower than those of the mild ED group(P=0.007 and P=0.010,respectively).The prevalence of ED and premature ejaculation(PE)in patients with moderate-to-severe CP/CPPS was significantly higher than that in patients with mild CP/CPPS(P=0.001 and P=0.024,respectively).Our findings proved that the severity of ED was negatively associated with psychological symptoms in outpatients with moderate-to-severe CP/CPPS.

关键词： anxiety association chronic prostatitis/chronic pelvic pain syndrome depression erectile dysfunction

Illite Crystallinity Mapping of Very Low Grade Metamorphism of Triassic Metapelites in the Zoigê Area,Western China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2012年第1期86卷 96-105页

作者： tang yan SANG Longkang YUAN yanming YU Jishun ZHANG Yunpeng QI Xianmao yanG Yunlong Faculty of Earth Sciences China University of GeosciencesWuhan 430074China College of Earth Science and Resources Chang'an UniversityXi'an 710054China State Key Laboratory of Geological Processes and Mineral Resources China University of GeosciencesWuhan 430074China Xi'an Center of Geological Survey China Geological SurveyXi'an 710054China Chengdu Institute of Geology and Mineral Resources Chengdu 610082China Sinopec Exploration Southern Company Chengdu 610082China

X-ray diffraction methods for estimating the metamorphic grade of diagenetic, anchizone and epizone in metapelites are reviewed and applied to samples from a 7000 m＋ borehole in western China and surface samples from the surrounding Zoige area. Kiibler＇s illite crystallinity （IC） measurements provide more consistent results than calculated values of percentage of illite in the I/S mixed layers and percentage of I/S mixed layers. Down-borehole IC values display a typical burial metamorphic relationship between stratigraphic level and IC. A method for preparing very low grade metamorphic maps is described, and isograds plotted on a regional geological map at selected values of IC, delineating a high temperature diagenetic zone, an anchizone, and an epizone. The map shows that IC values are controlled by stratigraphic level in the north of the study area （i.e. burial metamorphism）, and proximity to an igneous intrusive body in the south （i.e. contact metamorphism）.

关键词： X-ray diffraction metapelitic zone illite crystallinity percentage of illite in I/S mixed layers percentage of I/S mixed layers the metamorphic map

Temperature-Dependent Effect of Near-Interface Traps on SiC MOS Capacitance

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2018年第10期35卷 77-80页

作者： yan-Jing He Xiao-yan tang Yi-Fan Jia Ci-Qi Zhou Yu-Ming Zhang Microelectronics Institute Xidian University

A two-dimensional electrical SiC MOS interface model including interface and near-interface traps is established based on the relevant tunneling and interface Shockley–Read–Hall model. The consistency between simulation results and measured data in the different temperatures shows that this interface model can accurately describe the capture and emission performance for near-interface oxide traps, and can well explain the hysteresis-voltage response with increasing temperature, which is intensified by the interaction between deep oxide traps and shallow oxide traps. This also indicates that the near-interface traps result in an increase of threshold-voltage shift in SiC MOSFET with increasing temperature.

关键词： MOS Temperature-Dependent Effect of Near-Interface Traps on SiC MOS Capacitance SiC

A Comparative Study on Participatory MicroRegeneration of Old Communities: From the Perspective of Social Capital

在线全文

学校读者我要写书评

暂无评论

China City Planning Review 2019年第4期28卷 50-58页

作者： tang yan Zhang Lu Li Jing School of Architecture Tsinghua UniversityBeijingP.R.China School of Architectural Arts Northern University of TechnologyBeijingP.R.China

Along with the rise of democratic consciousness and the slowdown of urbanization and economic growth speed, the community development path in contemporary China is under transition, aiming at a more bottom-up and small-scale planning and design process. In order to reveal how the "social capital" affects the public participation and social governance in the process of community micro-regeneration in China, this paper takes two old communities in Chaoyang District of Beijing as examples, to compare the impacts of various social capital levels on participatory community planning and design. The study proves the significance of community social capital and community self-government for the success of residents’ participation and community regeneration, as well as providing suggestions on how to improve public participation effects by strengthening social capital of communities.

关键词： social capital micro-regeneration old community community governance

Effect of defatted flaxseed gum powder addition on the quality of sesame paste

在线全文

学校读者我要写书评

暂无评论

Oil Crop Science 2024年第1期9卷 1-7页

作者： Haichao He Mingkai Sun Jiahui Wang yan tang Yashu Chen Qianchun Deng Qingde Huang Hu tang Oil Crops Research Institute Chinese Academy of Agricultural SciencesWuhanChina Hubei Key Laboratory of Lipid Chemistry and Nutrition WuhanChina Oil Crops and Lipids Process Technology National&Local Joint Engineering Laboratory WuhanChina

The study explored the influence of defatted flaxseed gum powder(DFGP) on the stability and quality of sesame paste by measuring and analyzing its composition, color, texture, particle size, centrifugal oil separation rate,rheological properties, and microstructure. The results showed that the moisture and polysaccharide content of sesame paste was increased as the DFGP increased. Additionally, the hardness, gumminess, and chewiness of the sesame paste was improved, while the presence of particles with small particle size(1–100 μm) was *** rate of oil precipitation was reduced by 28.99% when the amount of DFGP was 6%. The sesame paste samples exhibited pseudoplastic behavior, demonstrating shear thinning. As the shear rate increased, the apparent viscosity of sesame paste gradually decreased. Both the storage modulus(G’) and the loss modulus(G’’) increased as the shear frequency increased. The microstructure observation revealed that protein and oil were evenly distributed in the sesame paste system, and the addition of DFGP enhanced the bonding between oil and *** study can provide valuable references for high-quality sesame paste products in the food industry.

关键词： Flaxseed gum powder Sesame paste Quality Addition

Human organoids in basic research and clinical applications

在线全文

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2022年第6期7卷 2010-2026页

作者： Xiao-yan tang Shanshan Wu Da Wang Chu Chu Yuan Hong Mengdan Tao Hao Hu Min Xu Xing Guo yan Liu Institute for Stem Cell and Neural Regeneration School of PharmacyState Key Laboratory of Reproductive MedicineKey Laboratory of Targeted Intervention of Cardiovascular DiseaseCollaborative Innovation Center for Cardiovascular Disease Translational MedicineNanjing Medical UniversityNanjingChina Department of Neurobiology School of Basic Medical SciencesNanjing Medical UniversityNanjingChina

Organoids are three-dimensional(3D)miniature structures cultured in vitro produced from either human pluripotent stem cells(hPSCs)or adult stem cells(AdSCs)derived from healthy individuals or patients that recapitulate the cellular heterogeneity,structure,and functions of human *** advent of human 3D organoid systems is now possible to allow remarkably detailed observation of stem cell morphogens,maintenance and differentiation resemble primary tissues,enhancing the potential to study both human physiology and developmental *** they are similar to their original organs and carry human genetic information,organoids derived from patient hold great promise for biomedical research and preclinical drug testing and is currently used for personalized,regenerative medicine,gene repair and transplantation *** recent decades,researchers have succeeded in generating various types of organoids mimicking in vivo ***,we provide an update on current in vitro differentiation technologies of brain,retinal,kidney,liver,lung,gastrointestinal,cardiac,vascularized and multi-lineage organoids,discuss the differences between PSC-and AdSC-derived organoids,summarize the potential applications of stem cell-derived organoids systems in the laboratory and clinic,and outline the current challenges for the application of organoids,which would deepen the understanding of mechanisms of human development and enhance further utility of organoids in basic research and clinical studies.

关键词： organs clinical generating