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599篇 您的检索式:作者名="K. Peters"
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1Design of rock support system under rockburst condition显示文摘As mining and civil tunneling progresses to depth, excavation-induced seismicity and rockburst problems increase and cannot be prevented. As an important line of defense, ground control measures and burst-resistant rock support are used to prevent or minimize damage to excavations and thus to enhance workplace safety. Rock support in burst-prone ground differs from conventional rock support where controlling gravity-induced rockfalls and managing shallow zones of loose rock are the main target. Rock support in burst-prone ground needs to resist dynamic loads and large rock dilation due to violent rock failure. After reviewing the rockburst phenomenon, types of rockbursts, damage mechanisms, and rockburst support design principles and acceptability criteria, this paper describes that the support selection process in burst-prone ground is iterative, requiring design verification and modification based on field observations. An interactive design tool for conducting rockburst support design in underground tunnels is introduced to facilitate cost-effective design.Peter K. Kaiser 2012Journal of Rock Mechanics and Geotechnical Engineering2012,4,3:32
2The 2007 WHO Classification of Tumours of the Central Nervous System显示文摘David N. Louis Hiroko Ohgaki Otmar D. Wiestler Webster K. Cavenee Peter C. Burger Anne Jouvet Bernd W. Scheithauer Paul Kleihues 2007Acta Neuropathologica2007,,2:13
3Processing effects on the magnetic and mechanical properties of FeCoNiAl_(0.2)Si_(0.2) high entropy alloy显示文摘High entropy alloys with the composition of FeCoNiAl0.2Si0.2 were prepared by arc melting and induction melting, denoted by A1 and A2, respectively. The samples prepared by these two techniques have a face-centered cubic (FCC) phase structure and a typical dendrite morphology. The tensile yield strength and maximum strength of A2 samples are about 280 and 632 MPa, respectively. Moreover, the elongation can reach 41.7%. These two alloys prepared by the different methods possess the similar magnetic properties. The saturation magnetization and coercivity can reach 1.151 T and 1400 A/m for Al samples and 1.015 T and 1431 A/m for A2 samples, respectively. Phases in A2 samples do not change, which are heat treated at different temperatures, then quenched in water. Only the sample, which is heat treated at 600C for 3h and then furnace cooled, has a new phase precipitated. Besides, the coercivity decreases obviously at this temperature. Cold rolling and the subsequent heat treatment cannot improve the magnetic properties effectively. However, cold rolling plays an important role in improving the strength.Ting-ting Zuo Song-bo Ren Peter K. Liaw Yong Zhang 2013International Journal of Minerals,Metallurgy and Materials2013,20,6:12
4Nature:通过控制血管生长来开发治疗癌症等多种疾病的新型疗法显示文摘最近,一项刊登在国际杂志Nature上的研究报告中,来自耶鲁大学的研究人员通过研究揭示了如何通过控制血管发育来帮助开发治疗心血管疾病以及癌症的新型疗法。Yu, Pengchun Wilhelm, Kerstin Dubrac, Alexandre Tung, Joe K. Alves, Tiago C. Fang, Jennifer S. Xie, Yi Zhu, Jie Chen, Zehua De Smet, Frederik Zhang, Jiasheng Jin, Suk-Won Sun, Lele Sun, Hongye Kibbey, Richard G. Hirschi, Karen K. Hay, Nissim Carmeliet, Peter Chittenden, Thomas W. Eichmann, Anne Potente, Michael Simons, Michael 2017现代生物医学进展2017,17,22:9
5Control of Cell Wall Extensibility during Pollen Tube Growth显示文摘在这评论,当时,我们探讨成长尖端的花粉试管怎么完成它延伸的快速的率的问题 maintainingan 未经触动的房间墙。尽管 turgor 是必要的让生长发生,本地扩大率被本地 changesin 控制顶端的墙的粘性。我们集中于是思维 tobe 的几不同结构和内在的过程肌动朊细胞骨架,钙和质子生理学的主要参加者包括 exocytosis,组织和活动,和细胞的 energetics。我们认为肌动朊细胞骨架,特别地顶端的外皮的肌动朊穗,指导泡的 theflow 到顶端的领域,在他们与血浆膜熔化并且作出贡献的地方,他们到 expandingcell 的内容围。当时 pH 坡度由沿着 clearzone 的方面位于血浆膜的 proton-ATPase 产生了可以在穗调整快速的肌动朊周转和新聚合,集中尖端的钙坡度偏爱 secretiontowards 极的轴。显示出新墙材料的那 exocytosis 的最近的数据先于并且预言过程 ofcell 延伸为最新分泌的果胶的摄取贡献减少 inapical 的想法提供支持墙粘性并且到房间扩大。另外的主要因素将是由果胶的酸的钙的酶 pectinmethyl-esterase,和 chelation 的本地化和活动。最后,我们为反应的氧 speciesin 承认一个角色墙 viscosity.Key 词的控制:Peter K. Hepler Caleb M. Rounds Lawrence J. Winship 2013Molecular Plant2013,6,4:9
6Determinant-Based Classification of Acute Pancreatitis Severity: An International Multidisciplinary Consultation显示文摘E. Patchen Dellinger Christopher E. Forsmark Peter Layer Philippe Lévy Enrique Maraví-Poma Maxim S. Petrov Tooru Shimosegawa Ajith K. Siriwardena Generoso Uomo David C. Whitcomb John A. Windsor 2012Annals of Surgery2012,,6:7
7Pancreaticoduodenectomy with vascular resection: margin status and survival duration显示文摘Jennifer F. Tseng M.D. Chandrajit P. Raut M.D. Jeffrey E. Lee M.D. Peter W. T. Pisters M.D. Jean-Nicolas Vauthey M.D. Eddie K. Abdalla M.D. Henry F. Gomez M.D. Charlotte C. Sun Dr.P.H. Christopher H. Crane M.D. Robert A. Wolff M.D. Douglas B. Evans M.D 2004Journal of Gastrointestinal Surgery2004,,8:6
8Preternatural Hexagonal High-Entropy Alloys: A Review显示文摘Recently,various topics on high-entropy alloys have been reported and great amounts of excellent properties have been investigated,including high strength,great corrosion resistance,great thermal stability,good fatigue and fracture properties,etc.Among all these research activities,high-entropy alloys tend to form face-centered-cubic(FCC)or body-centeredcubic(BCC)solid solutions due to their high-entropy stabilization effect,while the hexagonal structures are rarely reported.Up to now,the reported hexagonal high-entropy alloys are mainly composed of rare-earth elements and transitional elements.Their phase transformation and magnetic properties have also aroused wide concern.This study summarizes the above results and provides the forecast to the future.Rui-Xuan Li Jun-Wei Qiao Peter K. Liaw Yong Zhang 2020Acta Metallurgica Sinica(English Letters)2020,33,8:4
9神经元性一氧化氮合酶活性在app/ps1双转基因AD模型小鼠皮质和海马的分布显示文摘本实验用 4~ 5月龄和 15~ 16月龄的 app/ ps1dtg小鼠各 5只 ,同龄野生型小鼠每个年龄组各 5只 ,用β-NADPH组织化学染色显示神经元一氧化氮合酶活性 ,刚果红组织学染色显示神经炎性斑 ,无偏性体视学计量皮质和海马神经炎斑的总体积 ,研究神经元一氧化氮合酶活性在 app/ ps1双转基因 (app/ ps1dtg) AD模型小鼠大脑皮质和海马的异常分布 ,探讨其在该模型小鼠及 AD患者脑内病理改变中的作用。结果显示 ,n NOS阳性神经元在各组小鼠皮质和海马内的分布没有区别 ,4~ 5月龄 app/ps1dtg小鼠皮质和海马可见神经炎斑 (NP)和营养不良性 NOS阳性神经突 (DTN) ;15~ 16月龄 app/ ps1dtg小鼠皮质和海马内NP的体积分别是 4~ 5月龄 app/ ps1dtg小鼠皮质 NP的 5倍 (P<0 .0 0 5 )和 8倍 (P<0 .0 0 1) ;15~ 16月龄 app/ ps1dtg小鼠皮质内 DTN的体积明显增大 (P<0 .0 1) ;且伴有 NOS阳性神经元形态的改变及海马 CA1 区 NOS阳性神经元数量的减少 (P<0 .0 5 ) ,DTN的形成与 NP呈正相关关系 (r=0 .85 ,P<0 .0 5 )。本实验结果表明 ,app/ ps1dtg小鼠能够模拟 AD患者脑内 NOS阳性神经元的病理改变 ,DTN的形成可能与 Aβ的毒性作用有关 ,DTN产生的 NO可能参与 app/ ps1dtg小鼠和 AD的神经病理过程。雷德亮 罗学港 Peter R. Mouton Donald K. Ingram 2004神经解剖学杂志2004,20,4:4
10Natural-orifice transgastric endoscopic peritoneoscopy in humans: Initial clinical trial显示文摘Jeffrey W. Hazey Vimal K. Narula David B. Renton Kevin M. Reavis Christopher M. Paul Kristen E. Hinshaw Peter Muscarella E. Christopher Ellison W. Scott Melvin 2008Surgical Endoscopy2008,,1:4
11Leads from Indian medicinal plants with hypoglycemic potentials显示文摘Pulok K. Mukherjee Kuntal Maiti Kakali Mukherjee Peter J. Houghton 2006Journal of Ethnopharmacology2006,,1:4
12A systematic review and meta-analysis of laparoscopic versus open distal pancreatectomy for benign and malignant lesions of the pancreas: It’s time to randomize显示文摘Arianeb Mehrabi Mohammadreza Hafezi Jalal Arvin Majid Esmaeilzadeh Camelia Garoussi Golnaz Emami Julia K?ssler-Ebs Beat Peter Müller-Stich Markus W. Büchler Thilo Hackert Markus K. Diener 2014Surgery2014,,:4
13Incubation Phase of Acute Hepatitis B in Man: Dynamic of Cellular Immune Mechanisms显示文摘George J.M. Webster Stephanie Reignat Mala K. Maini Simon A. Whalley Graham S. Ogg Abigail King David Brown Peter L. Amlot Roger Williams Diego Vergani Geoffrey M. Dusheiko Antonio Bertoletti 2000Hepatology2000,,5:4
14Nonlocal-Means Image Denoising Technique Using Robust M-Estimator显示文摘Edge preserved smoothing techniques have gained importance for the purpose of image processing applications. A good edge preserving filter is given by nonlocal-means filter rather than any other linear model based approaches. This paper explores a different approach of nonlocal-means filter by using robust M-estimator function rather than the exponential function for its weight calculation. Here the filter output at each pixel is the weighted average of pixels with surrounding neighborhoods using the chosen robust M-estimator function. The main direction of this paper is to identify the best robust M-estimator function for nonlocal-means denoising algorithm. In order to speed up the computation, a new patch classification method is followed to eliminate the uncorrelated patches from the weighted averaging process. This patch classification approach compares favorably to existing techniques in respect of quality versus computational time. Validations using standard test images and brain atlas images have been analyzed and the results were compared with the other known methods. It is seen that there is reason to believe that the proposed refined technique has some notable points.Dinesh J. Peter V. K. Govindan Abraham T. Mathew 2010Journal of Computer Science & Technology2010,25,3:4
15Identification of Genetic Susceptibility Loci for Colorectal Tumors in a Genome-Wide Meta-Analysis显示文摘Ulrike Peters Shuo Jiao Fredrick R. Schumacher Carolyn M. Hutter Aaron K. Aragaki John A. Baron Sonja I. Berndt Stéphane Bézieau Hermann Brenner Katja Butterbach Bette J. Caan Peter T. Campbell Christopher S. Carlson Graham Casey Andrew T. Chan Jenny Chan 2012Gastroenterology2012,,:4
16Design of near-α Ti alloys via a cluster formula approach and their high-temperature oxidation resistance显示文摘The multi-component composition characteristics of high-temperature near-α Ti alloys were investigated in the present work by means of a cluster formula approach. The uniform cluster formula [CN12 cluster](glue atom)3 for the hexagonal close-packed α solid solution was first obtained based on the Friedel oscillation theory, with a total atom number in the formula of Z = 16. Then it was analyzed that the Z values in the cluster composition formulas of typical near-α Ti alloys are within the range of Z = 16.0016.30, being perfectly consistent with the ideal Z = 16. Based on it, a series of new alloys with Z = 16 and with Nb/Ta substitution for Mo in Ti1100 alloy were designed, suction-cast into φ 6 mm rods, and then heat-treated with solid solution and aging. It was found that the alloy with co-addition of Mo, Ta and Nb has a high strength and good ductility at both room and high temperatures. More importantly, the additions of Nb and Ta can contribute to the formation of continuous and compact Al2O3 scales, resulting in an obvious improvement of oxidation resistances at both 923 K and 1073 K. The effects of Mo, Ta and Nb on the oxidation behaviors of the designed alloys at 1073 K were further discussed.Beibei Jiang Donghui Wen Qing Wang Jinda Che Chuang Dong Peter K. Liaw Fen Xu Lixian Sun 2019Journal of Materials Science & Technology2019,35,6:4
17雌激素对老年雌性小鼠齿状回和海马CA1区神经胶质细胞的影响——形态学观察和无偏性体视学定量分析显示文摘切除 2 0~ 2 4月龄 C5 7BL /6NIA小鼠双侧卵巢 ,随后于颈部皮下植入可持续释放 60 d的含 1.7mgβ-雌二醇 (E2 )或含等剂量胆固醇的安慰剂。用免疫组织化学结合无偏性体视学方法 ,分析小鼠齿状回和海马 CA1区小胶质细胞和星形胶质细胞形态和数量的变化。结果发现 :60 d E2处理老年雌性小鼠不仅可以抑制神经胶质细胞的激活 ,而且可以明显降低小胶质细胞和星形胶质细胞的总数 ;神经胶质细胞在脑内免疫和炎症反应过程中起着非常重要的作用。本实验的结果提示 ,雌激素可能通过调节胶质细胞介导的脑内炎症反应通路 ,发挥其神经保护作用。雷德亮 罗学港 Peter R. Mouton Donald K. Ingram 2004神经解剖学杂志2004,20,4:3
18A Prospective Study on Fish Bone Ingestion: Experience of 358 Patients显示文摘JOHN H. K. NGAN PETER J. FOK EDWARD C. S. LAI FRANK J. BRANICKI JOHN WONG 1990Annals of Surgery1990,,4:3
19Eosinophilic esophagitis: Updated consensus recommendations for children and adults显示文摘Chris A. Liacouras Glenn T. Furuta Ikuo Hirano Dan Atkins Stephen E. Attwood Peter A. Bonis A. Wesley Burks Mirna Chehade Margaret H. Collins Evan S. Dellon Ranjan Dohil Gary W. Falk Nirmala Gonsalves Sandeep K. Gupta David A. Katzka Alfredo J. Lucendo Jo 2011The Journal of Allergy and Clinical Immunology2011,,1:3
20Fecal Microbiota Transplantation Induces Remission in Patients With Active Ulcerative Colitis in a Randomized Controlled Trial显示文摘Paul Moayyedi Michael G. Surette Peter T. Kim Josie Libertucci Melanie Wolfe Catherine Onischi David Armstrong John K. Marshall Zain Kassam Walter Reinisch Christine H. Lee 2015Gastroenterology2015,,:3
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