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2904篇 您的检索式:作者名="Chows C"
    题名 作者 年代 出处 被引量
1PM_(2.5)及其测量与影响研究简史显示文摘美国率先建立的国家环境空气质量标准(NAAQS)旨在保护公众健康,而该理念已被包括中国在内的众多国家所采用。针对大气悬浮颗粒物(PM),NAAQS根据PM在仪器检测以及人体吸入时的粒径选择性特征,定义了总悬浮颗粒(TSP)、PM_(10)、PM_(2.5)及其相应的质量浓度标准。这些指标的建立是基于长达300年来颗粒物监测技术发展及其危害评价的结果。因此2012年中国在颁布实施新PM_(2.5)空气质量标准时,PM_(2.5)的监测及评价方面有了更多科学积累与技术选择。本文简要回顾了PM的粒径分布、化学组成、可吸入特征、人体健康效应及空气质量标准等研究简史,根据其他国家的发展经验,提出中国在观测网络设计、测量仪器选择和使用、质量控制和质量保证及监测结果分析等方面需要确立自己独特的行业指南。对于未来空气质量的管理和标准制定,应同时考虑多种污染物及其对公众健康、能见度、气候、材料及生态系统的影响。CHOW Judith C 曹军骥 李顺诚 王小亮 WATSON John G 2012地球环境学报2012,3,5:17
2Calcium phosphate cements for bone engineering and their biological properties显示文摘Calcium phosphate cements(CPCs) are frequently used to repair bone defects. Since their discovery in the 1980 s, extensive research has been conducted to improve their properties, and emerging evidence supports their increased application in bone tissue engineering. Much effort has been made to enhance the biological performance of CPCs, including their biocompatibility, osteoconductivity, osteoinductivity, biodegradability,bioactivity, and interactions with cells. This review article focuses on the major recent developments in CPCs,including 3 D printing, injectability, stem cell delivery, growth factor and drug delivery, and prevascularization of CPC scaffolds via co-culture and tri-culture techniques to enhance angiogenesis and osteogenesis.Hockin HK Xu Ping Wang Lin Wang Chongyun Bao Qianming Chen Michael D Weir Laurence C Chow Liang Zhao Xuedong Zhou Mark A Reynolds 2017Bone Research2017,5,4:14
3Practice of breast self-examination among high risk Chinese women in Hong Kong显示文摘The incidence of breast cancer in Hong Kong is increasing and breast self examination (BSE) as a screening tool is becoming more popular, especially among first degree relatives (FDR) of breast cancer victims BSE may be more applicable to Chinese women as their breast size is smaller This study explores the BSE practice in this group of women Methods A cross sectional study was conducted by sending questionnaires to 330 FDR of breast cancer patients treated in the Department of Surgery, University of Hong Kong BSE behavior was studied with respect to its frequency, awareness, completeness and confidence of practice Results 110 subjects returned the questionnaires with a response rate of 33% The mean age of the respondent was 37 years Only 57 women (52%) were practicers The practicers have a stronger BSE awareness ( P <0 01) and a lower mean score on thought barriers ( P =0 002) than the non practicers 40% of the practicers gain their BSE knowledge through clinicians and their mean period of practice was 3 2 years 68% of the practicers performed BSE completely The overall confidence rate was 35%, but the rate was 43% among those who performed complete BSE Thirteen factors possibly related to the completeness and rate of confidence of BSE examination were studied The only factor that significantly determined completeness was the time spent for each examination ( P =0 002) The complete practicers required a longer time than the incomplete practicers (6 60 and 2 96?min, respectively) Women with a stronger BSE intention ( P =0 001) and a lower mean score on thought barriers ( P =0 001) performed the examination confidently Conclusions Slightly over half of the FDR practice BSE The majority perform a complete BSE but they are not confident in finding abnormalities Women spending more time on BSE are associated with a higher rate of completeness However, only those with a stronger BSE intention and lesser thought barriers are more confident in theirKelvin K C Ng, Fung S Y and Louis W C Chow DepartmentofSurgery (NgKKCandChowLWC)&NursingStudies (FungSY ) ,TheUniversityofHongKong ,QueenMaryHospital ,HongKong ,China 2000Chinese Medical Journal2000,,12:4
4Normalization of lactulose breath testing correlates with symptom improvement in irritable bowel syndrome显示文摘Mark Pimentel Evelyn J Chow Henry C Lin 2003The American Journal of Gastroenterology2003,,2:2
5Analytical solution for fast fatigue assessment under wide-band random loading显示文摘Chow C L Li D L 1991Int J Fatigue1991,5,:2
6PM 2.5 chemical source profiles for vehicle exhaust, vegetative burning, geological material, and coal burning in Northwestern Colorado during 1995显示文摘John G Watson Judith C Chow James E Houck 2001Chemosphere2001,,8:2
7Neural network based short-term load forecasting using weather compensation显示文摘Chow T W S Leung C T 1996IEEE Trans on Power Systems1996,11,4:2
8兵马俑博物馆冬季室内大气悬浮颗粒物与游客数量的关系显示文摘通过对秦始皇兵马俑博物馆铜车马展厅和一号坑室内采集的冬季大气悬浮颗粒物进行单颗粒分析,评价了在具有不同通风条件的两个展厅中,游客数量对大气悬浮颗粒物的影响。研究中采用配备能谱的扫描电子显微镜对单颗粒进行了形貌和元素组成分析,以判断室内悬浮颗粒的来源和化学组成差异,同时监测了两个展厅室内的微环境变化。结果显示,在铜车马展厅室内悬浮颗粒的昼夜质量浓度之比(1.30-3.12),明显高于同期的一号坑(0.96-2.59)和室外(0.68-1.79),表明在铜车马展厅游客数量对颗粒物质量浓度的贡献大于在一号坑内。室内、外对比的结果表明,悬浮颗粒物的质量浓度、粒径分布和颗粒类型等特性,在配备了机械通风设备的铜车马展厅中受游客数量的影响较大,而在自然通风为主的一号坑中,通风条件则成为决定因素。颗粒物组成分析显示,博物馆冬季的室内悬浮颗粒主要由黄土中的矿物颗粒、烟炱等低原子序数的颗粒、硫酸盐、燃煤飞灰和生物质颗粒组成。除烟炱和铝硅酸盐会造成对文物的脏污外,随着温、湿度的波动,硫酸钙的结晶、溶解、渗透和再结晶作用都会产生应力,导致兵马俑表面的风化。胡塔峰 曹军骥 李旭祥 Lee Shun-Cheng Judith C Chow John G Watson 容波 2009中国粉体技术2009,15,2:2
9Threshold controlling scheme for adaptive modulation and coding system显示文摘TAKEDA D CHOW Y C STRAUCH P 2006IEICE Transactions on Communications2006,89,5:1
10Finite element analysis of tunnel-soil-pile interaction using displacement controlled model显示文摘CHENG C Y DASARI G R CHOW Y K 2007Tunnelling and Underground Space Technology2007,22,4:1
11Effect of iron on the gasification of Victorian brown coal with steam: enhancement of hydrogen production显示文摘Yu J Tian F Chow M C 2006Fuel2006,85,2:1
12Forward-se- cure multisignature and blind signature schemes显示文摘Chow S S M Hui L C K Yiu S M 2005Applied Mathematics and Computation2005,168,:1
13A period stochastic reso- nance in excitable systems显示文摘Collins J J Chow C C Infiaoff T T 1995Physics Review E1995,52,3:1
14The DNAdouble-stranded break repair protein endo-exonuclease asa therapeutic target for cancer显示文摘Chow TY Alaoui-Jamali MA Yeh C 2004Mol Cancer Ther2004,8,3:1
15High speed continuous casting of steel billets Part 2: Mould heat transfer and mould design 显示文摘Chow C Samarasekera I V Walker BN etal 2002Ironmaking and Steelmaking2002,29,1:1
16Formation of hydroxyapatite in new calcium phosphate cements显示文摘TAKAGI S CHOW L C ISHIKAWA K 1998Biomaterials1998,19,:1
17Scheduling precedence graphs in systems with interprocessor communication times显示文摘Hwang J J Chow Y C 1989SIAM Journal on Computing1989,18,2:1
18A study of membrane filtration for the removal of cyanobacterial cells显示文摘Chow C W K Panglisch S House J 1997Journal of Water Supply Research and Technology-Aqua1997,46,6:1
19Leptin signaling in the hypothalamus of normal rats in vivo显示文摘Mccowen K C Chow J C and Smith R J 1998Endocrinology1998,139,11:1
20The relative contribution of Chkl and Chk2 to Adriamycin induced checkpoint 显示文摘HO C C SIU W Y CHOW J P 2005Exp Cell Res2005,304,1:1
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