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176篇 您的检索式:作者名="P.W."
    题名 作者 年代 出处 被引量
1皮肤神经鞘粘液瘤显示文摘皮肤神经鞘粘液瘤是近年来提出的较少见的良性软组织肿瘤。为了探讨该病的病变特点,我们报告18例并进行组织病理学、免疫组织化学观察及临床随访。结果示本病主要见于青少年,皮损常位于上肢和面部。组织病理学为一位于真皮和皮下的多结节状粘液性病变,丰富的粘液背景上分布梭形和星形的肿瘤细胞,似神经的环层小体。绝大部分病例S100蛋白为强阳性,支持其为神经鞘起源。有随访结果者无一复发。我们认为本病是一具有特征性病理变化的皮肤神经源性肿瘤,在一系列的命名中,我们认为以神经鞘粘液瘤为佳,能较准确地概括其主要病理变化。该病呈良性经过,局部手术切除即可获较好的治疗效果。范钦和 Alen P.W. 1996中华皮肤科杂志1996,29,4:14
2Special Issue on 'Recent Advances in Power System Control' for International Journal of Control,Automation,and Systems显示文摘Today the high quality power supply is of essential in the economic development in a country. With the development of modem power systems and increasing demand for power supply, the electric power industry is facing a great challenge in meeting the increased load demand with highest reliability and security with minimum transmission expenditure.E.H. Abed N.S. Namachchivaya T.J. Overbye M.A. Pai P.W. Sauer et al. 2004控制理论与应用(英文版)2004,2,4:5
3Support Vector Data Description显示文摘David M.J. Tax Robert P.W. Duin 2004Machine Learning2004,,1:4
4Influence of Co Content on Raman and Photoluminescence Spectra of Co Doped ZnO Nanowires显示文摘Co doped ZnO nanowires with different Co contents have been fabricated by a chemical vapor deposition method. X-ray diffraction results show that all the samples are of single phase and crystallize in wurtzite ZnO structure. The lattice parameter a increases with increasing Co content, while the parameter c has no obvious change with increasing Co. Raman spectra show that the nonpolar E2(High) mode becomes broad and weak with the doping of Co, which indicates that the incorporation of Co causes structural disorder in the crystalline columnar ZnO lattice. The photoluminescence spectra exhibit that the position of the ultraviolet emission shifts to short wavelength and the intensity decreases with increasing Co. The green emission is affected by two contrary factors. It is increased by the introduced defects, but suppressed by the interaction between Co doping and native defects and the later affects it more significantly.Y.Q. Chang P.W. Wang S.L. Ni Y. Long X.D. Li 2012Journal of Materials Science & Technology2012,28,4:4
5常规临床实践中西罗莫司洗脱支架和紫杉醇洗脱支架的早期和晚期冠状动脉支架血栓形成之比较:一项较大规模、由两个机构完成的队列研究的资料Daemen J. Wenaweser P. Tsuchida K. et P.W. Serruys 杜媛 2007世界核心医学期刊文摘(心脏病学分册)2007,0,8:4
6分叉病变应用“crush”技术置入支架后的长期结局:不良结局的预测因素Hoye A. Iakovou I. P.W. Serruys 郭俊 2006世界核心医学期刊文摘(心脏病学分册)2006,0,7:4
7Hypothalamic-Pituitary-Gut Axis Dysregulation in Irritable Bowel Syndrome: Plasma Cytokines as a Potential Biomarker?显示文摘Timothy G. Dinan Eamonn M.M. Quigley Salah M.M. Ahmed Paul Scully Sinead O’Brien Liam O’Mahony Siobhan O’Mahony Fergus Shanahan P.W. Napoleon Keeling 2006Gastroenterology2006,,2:3
8地貌继承性和塔状喀斯特的发育显示文摘概述地貌继承性的意义一般是很难评价的。在这方面,珊瑚礁地貌学家已走在其他地貌学家前面。对现代地貌从古地貌发展而来的认识,这是一个重要的问题。加柯克斯(1977)在喀斯特教科书中指出,喀斯特作用引起的“地貌变化”反过来影响该地区地貌发育过程,并使自身进一步的完善。他认为地形不仅是一系列作用过程的产物,而且是地貌演化中一个高度活跃的和直接的因素。地貌不是简单地作为反映过去过程的一面镜子,而是一个影响现代侵蚀过程和控制将来地貌的动力因素。与地貌继承性特别有关的两个因素是:侵蚀阶段和当时的气候地貌条件。作为基准面的冰期海平面变化与气候地貌的关系很复杂。如运用戴维斯的演化阶段论,一个老年期的地形包含了一个早期的壮年阶段。P.W.威廉姆斯 刘宏 宋林华 1990地理科学进展1990,15,1:3
9A Second Main Theorem on P^n for difference operator显示文摘The main result of this article is an extension of the Second Main Theorem,of Halburd and Korhonen,for meromorphic functions of finite order.Their result replaces the counting function of the ramification divisor Nramf(r)in the classical Second Main Theorem by the counting function of a finite difference divisor Npair(r).In this article,the Second Main Theorem of Halburd and Korhonen is extended to the case of holomorphic maps into Pn of finite order.WONG Pit-Mann LAW Hiu-Fai WONG Philip P.W. 2009Science China Mathematics2009,52,12:2
10Randomised comparison of morbidity after D1 and D2 dissection for gastric cancer in 996 Dutch patients显示文摘J.J. Bonenkamp I. Songun K. Welvaart C.J.H. van de Velde J. Hermans M. Sasako J.T.M. Plukker P. van Elk H. Obertop D.J. Gouma C.W. Taat J. van Lanschot S. Meyer P.W. de Graaf M.F. von Meyenfeldt H. Tilanus 1995The Lancet . 1995 (8952)1995,,:2
11Upper bound limit analysis using discontinuous velocity fields显示文摘S.W. Sloan P.W. Kleeman 1995Computer Methods in Applied Mechanics and Engineering1995,,1:2
12The contribution of DEM to the science of comminution显示文摘N.S. Weerasekara M.S. Powell P.W. Cleary L.M. Tavares M. Evertsson R.D. Morrison J. Quist R.M. Carvalho 2013Powder Technology2013,,:2
13Microstructural control of aluminum sheet used in automotive applications显示文摘G.B. Burger A.K. Gupta P.W. Jeffrey D.J. Lloyd 1995Materials Characterization1995,,1:2
14The water footprint of energy from biomass: A quantitative assessment and consequences of an increasing share of bio-energy in energy supply显示文摘P.W. Gerbens-Leenes A.Y. Hoekstra Th. van der Meer 2008Ecological Economics2008,,4:2
1518F-氟脱氧葡萄糖的摄取作为原发性宫颈癌放疗后的预后指标显示文摘Purpose. We evaluated the prognostic significance of tumor metabolic activity on pretreatment positron emission tomography using the glucose analog F- 18 fluorodeoxyglucose (FDG- PET) in patients with carcinoma of the cervix undergoing radiotherapy with or without concurrent chemotherapy. Methods. We studied 96 consecutive patients who underwent FDG- PET prior to initiation of radiotherapy with or without concurrent chemotherapy for carcinoma of the cervix. Pretreatment FDG uptake of the primary tumor was assessed with the semiquantitative standardized uptake value (SUV) and correlated with di-sease- free and overall survival. Survival was estimated by the Kaplan- Meier method. Univariate and multivariate analyses were performed with the logistic likelihood ratio test and the Cox proportional hazards model, respectively. Results. Five-year disease- free survivals in patients with maximal SUV < 10.2 and ≥ 10.2 were 71% and 52% (P = 0.0289)- respectively, while overall survivals were 72% and 69% (P = 0.4), respectively. On multivariate analysis, lymph node metastasis on FDG- PET was found to be predictive of disease- free survival (P < 0.0001). Both the SUV for FDG and FIGO Stage I disease were found to be marginally predictive of disease- free survival (P = 0.055 and P = 0.058, respectively). Conclusions. FDG uptake within primary cervical cancer, as measured by SUV, is predictive of disease- free survival in patients undergoing radiotherapy for cervical cancer. High FDG uptake may be useful in identifying patients who may require more aggressive initial therapy.Dehdashti F. P.W. Grigsby 李奎 2006世界核心医学期刊文摘(妇产科学分册)2006,2,9:2
16Influence of Lead Selection and Population on Automated Measurement of QT Dispersion显示文摘P.W. Macfarlane Stephanie C. McLaughlin J. Christine Rodger 1998Circulation1998,,20:1
17Maternal obesity up-regulates inflammatory signaling pathways and enhances cytokine expression in the mid-gestation sheep placenta显示文摘M.J. Zhu M. Du P.W. Nathanielsz S.P. Ford 2010Placenta2010,,5:1
18TRIBOLOGICAL AND HIGH SPEED TURNING PERFORMANCE IN Ti_(1-x)Al_xN COATINGS PREPARED BY CLOSE-FIELD UNBALANCED MAGNETRON SPUTTERING显示文摘Titanium-aluminium-nitride (Ti1-xAlxN) coatings were deposited by close-field un balanced magnetron sputtering on M42 steel substrates and WC-6wt%Co inserts at 4 50℃. The tribological behavior was analyzed by sliding against steel and WC- 6wt%Co balls, while the turning performance was evaluated by a conventional tu rning machine at high cutting speeds without using coolants. In the tribological tests, the formation of transfer layer and the variations of hardness of the co atings played an important role for sliding against steel balls. For the coating s sliding against WC-6wt%Co balls, the Ti-Al-N coatings showed a similar frictio n coefficient, but the TiN coating exhibited a lower value. The difference could be explained by the tri-oxidation wear mechanism. In the turning tests, a super ior cutting performance of the coating was found at x=0.45, which endured 38 min utes before the tool flank wear reached the maximum value of 0.3mm, whereas only 20 minutes were endured for the TiN coating. The excellent performance of the c oatings in the turning tests could be explained by the enhanced mechanical prope rties and oxidation/diffusion resistance of the coatings.P.W. Shum M. Escursell T.H. Wong 2005Acta Metallurgica Sinica(English Letters)2005,18,3:1
19Inhomogeneous tensile deformation in ultrafine-grained aluminum显示文摘P.C. Hung P.L. Sun C.Y. Yu P.W. Kao C.P. Chang 2005Scripta Materialia2005,,6:1
20Effect of rock shapes on brittle fracture using Smoothed Particle Hydrodynamics显示文摘R. Das P.W. Cleary 2009Theoretical and Applied Fracture Mechanics2009,,1:1
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