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您的检索式：作者名="Robert Hack"
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| 1 | Some new pre-warning criteria for creep slope failure显示文摘The forecasting of the failure time of a slope remains a worldwide problem because of many different possibilities of geological conditions in combination with many varying external factors such as climate and vegetation,and not well-defined or unknown time effects in deformation and failure models.The aim of this paper is to suggest a new method to carry out the phase division and to explore tangential angular features of the displacement-time curve of creep slopes as well as the acceleration characteristics in the process of slope deformation and the pre-warning criteria for critical failure.An imminent failure is pro-ceeded with usually three basic deformation phases,namely primary creep('decelerated') ,secondary creep('steadystate') and tertiary creep('accelerated') .Mostly,only during the accelerated phase the imminence of a possible slope failure is rec-ognized.The analysis of displacement data from a series of landslides allowed to recognize different evolutionary patterns of displacement.A quantitative approach was proposed to describe the tangential angle of the displacement-time curve and a new criterion based on the angle was put forward to divide the accelerated phase into three sub-phases:initial acceleration,medium acceleration,and the critical failure.A pre-warning criterion for critical failure is also proposed consequently. Changes of acceleration showed completely different characteristics from those of cumulative displacement and displacement in the process of slope deformation.The values of acceleration usually oscillate around 0 prior to the critical failure phase,whereas the acceleration increases abruptly when the deformation moves into the critical failure phase.This allows,therefore,for a method to forecast the time of the failure.So it is possible to define different alert acceleration threshold values to be used for emergency management. | HACK Robert | 2011 | Science China(Technological Sciences)2011，54，S1： | 15 |
| 2 | Influence of Earthquakes on the stability of slopes显示文摘 | Robert Hack Dinand Alkema Gerard A M Kruse | 2007 | Engineering Geology2007，4，15： | 1 |
| 3 | Outcomes After Cardioversion and Atrial Fibrillation Ablation in Patients Treated With Rivaroxaban and Warfarin in the ROCKET AF Trial显示文摘 | Jonathan P. Piccini Susanna R. Stevens Yuliya Lokhnygina Manesh R. Patel Jonathan L. Halperin Daniel E. Singer Graeme J. Hankey Werner Hacke Richard C. Becker Christopher C. Nessel Kenneth W. Mahaffey Keith A.A. Fox Robert M. Califf Günter Breithardt | 2013 | Journal of the American College of Cardiology2013，，19： | 1 |
| 4 | 急性卒中影像学研究路径图Ⅱ显示文摘卒中影像学研究组(StrokeImagingResearchGroup,STIR)、美国神经放射学学会和美国神经放射学学会基金会在过去1年多的时间时举办了一系列的工作会议,最后一次会议于2013年3月9日至10日在华盛顿召开的卒中治疗专业学术圆桌会议(Stroke Treatment Academy Industry Roundtable,STAIR)期间举行。 | Max Wintermark Gregory W. Albers Joseph P. Broderick Andrew M. Demchuk Jochen B. Fiebach Jens Fiehler James C. Grotta Gary Houser Tudor G. Jovin Kennedy R. Lees Michael H. Lev David S. Liebeskind Marie Luby Keith W. Muir Mark W. Parsons Rudiger von Kummer Joanna M. Wardlaw Ona Wu Albert J. Yoo Andrei V. Alexandrov Jeffry R. Alger Richard I. Aviv Roland Bammer Jean-Claude Baron Fernando Calamante Bruce C.V. Campbell Trevor C. Carpenter Sφren Christensen William A. Copen Colin P. Derdeyn E. Clarke Haley Jr Pooja Khatri Kohsuke Kudo Maarten G. Lansberg Lawrence L. Latour Ting-Yim Lee Richard Leigh Weili Lin Patrick Lyden Grant Mair Bijoy IC Menon Patrik Michel Robert Mikulik Raul G. Nogueira Left φstergaard Salvador Pedraza Christian H. Riedel Howard A. Rowley Pina C. Sanelli Makoto Sasaki Jeffrey L. Saver Pamela W. Schaefer Peter D. Schellinger Georgios Tsivgoulis Lawrence R. Wechsler Philip M. White Greg Zaharchuk Osama O. Zaidat Stephen M. Davis Geoffrey A. Donnan Anthony J. Furlan Werner Hacke Dong-Wha Kang Chelsea Kidw ell Vincent N. Thijs Gotz Thomalla Steven J. Warach 严晓铭 刘牧 张晶晶 柯开富 | 2014 | 国际脑血管病杂志2014，22，2： | 0 |
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