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1931篇 您的检索式:作者名="Wynne"
    题名 作者 年代 出处 被引量
1基于时序NDVI的露天煤矿区土地损毁与复垦过程特征分析显示文摘露天煤矿区是人类活动强扰动地区之一。该文以阿巴拉契亚煤田区韦恩县为研究区域,应用遥感时序分析法分析了像元尺度的土地损毁和复垦过程特征。得出结论:1984-2010年间,韦兹县露天开采扰动区域占采矿权范围的45.80%,其中植被恢复区域占开采范围的66.45%,开采时间越早,植被恢复像元比例越高;开采造成的地表无植被覆盖期时长中位数为6 a,均值为7 a;已充分复垦的区域,NDVI值恢复至采前水平的加权平均时长为12 a。基于像元变化轨迹的研究,除揭示土地损毁-复垦过程特征外,能较好地反映空间异质性,可以为土地复垦管理和相关政策决策提供科学依据。李晶 Zipper Carl E. 李松 Donovan Patricia F. Wynne Randolph H. Oliphant Adam J. 夏清 2015农业工程学报2015,31,16:32
2Outcome of gall bladder polypoidal lesions detected by transabdominal ultrasound scanning: A nine year experience显示文摘AIM: To determine the outcome of polypoidal lesions within the gall bladder (PLG) diagnosed by trans-abdominal scanning.METHODS: A nine-year (1993-2002) retrospective casenote review of all patients who underwent ultrasound scanning after referral to a single Upper GI Surgeon at a District General Hospital was conducted. Patients who were diagnosed with a PLG were included in our study. A database was constructed and patient details, investigations including ultrasound scan (USS) findings, treatment and histology and final diagnosis were recorded. RESULTS: Twenty-three (out of 651) patients were diagnosed pre-operatively by USS to have a polyp-likegall bladder lesion (PLG). Post cholecystectomy histological examination revealed 12 gallstones, 7 cholesterol polyps, 3 adenocarcinomas within polyps and 1 normal gall bladder. The specificity of USS in the diagnosis of PLG was 92.3%. All the true polyps were malignant. Overall USS had 66.66% sensitivity and 100% specificity in the pre-operative suspicion of malignancy. Using size greater than 10 mm as measured on USS as a cut-off, we find 100% sensitivity and 86.95% specificity with a positive predictive value of 50% in the diagnosis of malignancy in PLG.CONCLUSION: A large number of PLG are in fact calculi within diseased gall bladder. In cases of gall bladder polyps more then 10 mm in size on USS further imaging (crosssectional and/or EUS) is indicated prior to surgery. This will help in the optimal management of patients and avoid histological surprises.D Chattopadhyay R Lochan S Balupuri BR Gopinath KS Wynne 2005World Journal of Gastroenterology2005,11,14:23
3A comparative study of dust control practices in Chinese and Australian longwall coal mines显示文摘Mine dust is one of the main hazards in underground longwall mines worldwide.In order to solve the mine dust problem,a significant number of studies have been carried out regarding longwall mine dust control,both in China and Australia.This paper presents a comparative study of dust control practices in Chinese and Australian longwall mines,with particular references to statutory limits,dust monitoring methods and dust management practices,followed by a brief discussion on the research status of longwall mine dust control in both countries.The study shows that water infusion,face ventilation controls,water sprays,and deep and wet cutting in longwall shearer operations are commonly practiced in almost all underground longwall mines and that both Chinese and Australian longwall mine dust control practices have their own advantages and disadvantages.It is concluded that there is a need for further development and innovative design of more effective dust mitigation products or systems despite the development of various dust control technologies.Based on the examinations and discussions,the authors have made some recommendations for further research and development in dust control in longwall mines.It is hoped that this comparative study will provide beneficial guidance for scholars and engineers who are engaging in longwall mine dust control research and practice.Ji Yinlin Ren Ting Wynne Peter Wan Zhijun Ma Zhaoyang Wang Zhimin 2016International Journal of Mining Science and Technology2016,26,2:9
4激发中国企业的创业精神显示文摘近年来,中国的企业发生了巨大的变革,由此而使中国经济的发展取得了越来越大的成功.但是,随着中国加入世界贸易组织,中国的企业也面临着来自国内和国外更大的竞争压力.只有依靠源于企业内部创新力和充满活力的经济,才能确保社会稳定,完成国企改革,实现西部开发的大目标.李纲 Philip Cullum Jago Wynne 彭亚利 2002中外管理导报2002,,5:6
5Macrophages: Master Regulators of Inflammation and Fibrosis显示文摘Thomas Wynn Luke Barron 2010Semin Liver Dis2010,,03:4
6Usefulness of B-Type Natriuretic Peptide and Cardiac Troponin Levels to Predict In-Hospital Mortality from ADHERE显示文摘Gregg C. Fonarow William F. Peacock Tamara B. Horwich Christopher O. Phillips Michael M. Givertz Margarita Lopatin Janet Wynne 2008The American Journal of Cardiology2008,,2:2
7Microstructural Analysis of Ultrasonic Welded AA6061 by Electron Backscattered Diffraction显示文摘Ultrasonic welding can be used to join plastic and metal through high-frequency (more than 20 kHz) acoustic vibrations. Aluminium alloy is widely used in electronics, automotive and aerospace. The mechanical vibrations used during ultrasonic metal welding are introduced horizontally. During ultrasonic metal welding, a complex process is triggered involving static forces, oscillating shearing forces and a moderate temperature increase in the welding area. As the energy is introduced to the weld zone, there are three important phenomena occurring which are surface effect, volume effect and thermal effect. As it is known, microstructure is directly linked to the mechanical properties including fatigue resistance, fatigue life and fracture strength. So the microstructure analysis is important to evaluate the ultrasonically welded aluminium alloy’s properties. Also, mechanical properties of metal sheets, such as plastic anisotropy and formability, can be improved by a proper crystallographic texture control. That means the texture has great influence on the plastic anisotropy of the final recrystallized sheets. Optical microscopy (OM) can be used for showing the grain size and grain shape. However, to examine the relationship between mechanical behaviour and microstructure of the weldment, optical microscopy(OM) is not sufficient. OM cannot delineate a grain structure in the weld zone. The etched surface exhibited granularity at the micron level, but it was not clear if that reflected the grain structure. Electron backscatter diffraction (EBSD) in an SEM has become the most widely used technique for determination of microtexture. In this research, high-resolution electron backscatter diffraction is used to study the effects of the vibration on the evolution of microstructure in AA6061. The orientation image maps (OIM), polar figures (PF), and orientation distribution functions (ODF) of the samples are obtained. The characteristics of the crystallographic orientation, the grain structure and the grain boundary are analysed to find the effect of ultrasonic vibration on the microstructure and texture of the bond. The ultrasonic vibration will lead to exceptional refinement of grains to a micron level along the bond area and affect the crystallographic orientation. The grain size of upper foil is much smaller than that of the lower foil. And ultrasonic vibration results in a very weak texture with some characteristic intensity of a rotated cube-orientation and the Brass-orientation and S-orientation. In the lower foil, there is no much influence of the ultrasonic vibration. So there is very strong cube orientation in the lower foil.Zhu Z Wynne B P Ghassemieh E Siddiq A 2009稀有金属材料与工程2009,38,A03:2
8AA6111合金在热轧过程中保持时间对晶体织构的影响显示文摘使用EBSD研究了AA6111合金在两次热轧过程中不同保持时间对晶体织构演变的影响。结果显示:变形织构主要由α和β纤维组成。从主要织构组分的取向强度看出,随着保持时间的增加,Brass和Copper理想织构组分显著增加,S织构没有明显变化。宋颖刚 CROSS M.D.J. RAINFORTH W.M. WYNNE B.P. 2009材料工程2009,37,11:2
9Assessment and Learning: differences and relationships between formative and summative assessment显示文摘Wynne Harlen Mary James 1997Assessment in Education: Principles Policy & Practice1997,,3:2
10Current research in the conceptual design of mechanical products显示文摘Wynne Hsu Irene M.Y. Woon 1998Computer-Aided Design1998,,5:2
11湖水含盐量和Cu^(2+)浓度变化对Kinneret湖浮游植物的影响显示文摘通过人为改变湖水中的Cu2 + 浓度和含盐量的方法 ,Cu2 + 浓度和含盐量变化对Kinneret湖水中浮游植物可能造成的影响进行了分析。结果表明 ,湖水Cu2 + 浓度增加会抑制Kinneret湖水中藻类等浮游植物的生长 ,这对改善湖水水质来说是非常有利的 ,但高的Cu2 + 浓度对农作物生长和人类健康是有害的。在另一方面 ,对含盐量较低的约旦河水来说 ,适当增加Cu2 + 浓度则有利于藻类的生长。Kinneret湖中浮游植物的年平均生物量随湖水含盐量的下降而有增加的趋势 ,特别是当含盐量低于 2 0 0 μg/L左右时 ,浮游植物中蓝藻占的比例会升高 ,这对作为饮用水资原的Kinneret湖水来说是不利的。由此可见 ,适当控制和维持Kinneret湖水Cu2 + 浓度和含盐量对湖水水质保护具有重要的意义。胡章立 沈银武 刘永定 T. Bergstein Ben-Dan D. Wynne 2003水生生物学报2003,27,1:2
12Pervaporation of comes of age显示文摘Wynn N 2001Chem Eng Prog2001,97,10:2
13The Crystal Structure of the Human Hepatitis B Virus Capsid显示文摘S.A Wynne R.A Crowther A.G.W Leslie 1999Molecular Cell1999,,6:2
14In-Hospital Mortality in Patients With Acute Decompensated Heart Failure Requiring Intravenous Vasoactive Medications显示文摘William T. Abraham Kirkwood F. Adams Gregg C. Fonarow Maria Rosa Costanzo Robert L. Berkowitz Thierry H. LeJemtel Mei L. Cheng Janet Wynne 2005Journal of the American College of Cardiology2005,,:2
15Colitis and Intestinal Inflammation in IL10 ?/? Mice Results From IL-13Rα2–Mediated Attenuation of IL-13 Activity显示文摘Mark S. Wilson Thirumalai R. Ramalingam Aymeric Rivollier Kevin Shenderov Margaret M. Mentink–Kane Satish K. Madala Allen W. Cheever David Artis Brian L. Kelsall Thomas A. Wynn 2011Gastroenterology2011,,1:2
16Image Mining: Trends and Developments显示文摘WYNNE HSU etc 2002Journal of Intelligent Information Systems2002,19,1:1
17Immunization against somatotropin release inhibiting factor increases milk yield in ewes 显示文摘 Sinclair S E Wynn P C and McDowell G H 1990Aust J Agric Res1990,41,:1
18Immunopathogenesis of schistosomiasis显示文摘Wynn TA Thompson RW Cheever AW 2004Immunol Rev2004,201,1:1
19Development of a constructed subsurface-flow wetland simulation model显示文摘WYNN T M LIEHR S K 2001Eeol Eng2001,16,:1
20Pulmonary fibrosis:pathogenesis,etiology and regulation显示文摘Wilson MS Wynn TA 2009Mucosal Immunol2009,2,2:1
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