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238篇 您的检索式:作者名="EHRET"
    题名 作者 年代 出处 被引量
1Landslide Reliability Analysis Based on Transfer Coefficient Method: A Case Study from Three Gorges Reservoir显示文摘To evaluate the reliability of a landslide in a reservoir, the universal transfer coefficient method, which is popularized by the Chinese standard, is adopted as performance function in this study for: (1) common deterministic method stability evaluation; (2) reliability evaluation based on a Monte Carlo method; (3) comparison of landslide reliability under different water levels and under different correlation coefficients between soil shear strength parameters (c, Φ), respectively with mean, standard deviation, reliability coefficient and failure probability. This article uses the Bazimen (八字门) landslide, which is located at the outlet of Xiangxi (香溪) River in the Three Gorges Reservoir, as an example to evaluate its stability and reliability under different water levels with two-dimensional deterministic and probabilistic methods. With the assumption that constant mean and normal distributed shear strength parameters (c, Φ), correlation coefficient c, Φ=-1 based reliability analysis, compared with c, Φ=0 and 1, indicates obviously more increase of reliability index and lower standard deviation as water levels rise. To the case of a certain water level, c, Φ=-1 does not have constantly positive or negative effects on landslide reliability compared with c, Φ=0 or 1, but is associated with water level. Whereas the safety factor Fs by deterministic method, which is almost the same value as corresponding mean of safety factor from probabilistic analysis, will increase slightly as water level increases.毕仁能 Dominik Ehret 项伟 Joachim Rohn Markus Schleier 江洎洧 2012Journal of Earth Science2012,23,2:9
2Landslides at Qingjiang River in the Downstream Area of Shuibuya Dam Site, China显示文摘To enhance the general knowledge of landslides in China, the DAAD (German Academic Exchange Service) is financing an investigative project. As part of this project, at the Qingjiang (清江) River, a 10 km^2 area downstream of the Shuibuya (水布垭) dam site was geologically and geotechnically mapped to gather information concerning landslides and their correlation to lithology, slope angles and texture. The geological mapping contained the characterization of the lithological units. The characterization of the shape of landslides and the classification of rocks into units with similar geotechnical behavior is contained in the geotechnical map. Samples were taken and investigated using X-ray diffraction to identify the clay minerals and geotechnical tests to determine the effective shear angle and cohesion of rocks and soils. Geotechnical mapping showed a close connection between lithology, slope angle and texture concerning the occurrence of landslides. Most landslides occur on the northern bank of the Qingjiang River where the dip angle of the bedding is nearly parallel to the slope, resulting in potential and effective slide planes. On the southern bank only sporadic and small landslides occur because the bedding is antipodal to the slope angle. This pilot work is a base for further and more detailed investigations in this area.Kallen D 项伟 Ehret D Rohn J 2006Journal of China University of Geosciences2006,17,2:5
3Genome-Wide Association Studies: Contribution of Genomics to Understanding Blood Pressure and Essential Hypertension显示文摘Georg B. Ehret 2010Current Hypertension Reports2010,,1:2
4Lung cancer screening: Should we be excluding people with previous malignancy?显示文摘The National Lung Screening Trial(NLST) was a large,randomized, controlled study showing a 20% reduction of lung cancer mortality and 7% reduction of all cause mortality using annual low dose computed tomography(LDCT) in a high risk population. NLST excluded people with a previous history of cancer treatment within the past 5 years and all people with a history lung cancer. The aim of this work is to review how lung cancer screening trials addressed the confounding effect of previous malignancy. We also review the subsequent recommendations by the United States Preventative Task Force Services, multiple professional societies and the Center for Medicaid and Medicare Services which defer either to NLST criteria or, clinician judgment or refrain from asserting any recommendation on the topic, respectively. Implications of lung cancer screening in the setting of previous malignancies, specifically lung, head and neck, esophageal, gastric, breast, colorectal cancer and lymphoma are also discussed. With lung cancer screening, an antecedent malignancy introduces the possibility of discovering metastasis as well as lung cancer. In some circumstances diagnosis and treatment of oligometastatic disease may confer a survival benefit. The survival benefit of treating either lung cancer or oligometastatic disease as result of lung cancer screening has yet to be determined. Further studies are needed to determine the role of lung cancer screening in the setting of previous malignancy.Cherie P Erkmen Larry R Kaiser Ashley L Ehret 2016World Journal of Respirology2016,6,1:2
5Frequency Ratio Analysis of Mass Movements in the Xiangxi Catchment, Three Gorges Reservoir Area, China显示文摘In 2003, the Three Gorges Project (TGP, China), currently the world’s largest hydroelectric power plant by total capacity, went into operation. Due to large-scale impoundment of the Yangtze River and its tributaries and also due to resettlement, extensive environmental impacts like land use change and increase of geohazards are associated with the TGP. Within the Yangtze Project, we investigate these effects for the Xiangxi (香溪) catchment which is part of the Three Gorges Reservoir. The aim of this study is to evaluate the susceptibility for mass movement within the Xiangxi River backwater area using geographic information system (GIS). We used existing mass movements and the conditioning factors (geology, elevation, slope, curvature, land use, and land use change) for analyzing mass movement susceptibility. Mass movements and geology were mapped in the field to establish a mass movement inventory and a geological map. Land use and digital elevation model (DEM) were obtained from remote-sensing data. We determined the relation between mass movements and the conditioning factors by using the frequency ratio method and found strong relation between mass movements and both natural and human-influenced conditioning factors.Dominik Ehret Joachim Rohn Christian Dumperth Susan Eckstein Stefanie Ernstberger Karel Otte René Rudolph Johannes Wiedenmann 项伟 毕仁能 2010Journal of Earth Science2010,21,6:2
6Experimental study on the dependence of burnout on the operation conditions and physical properties in wastewater incineration 显示文摘EHRHARDT K EHRET A LEUCKEL W 1998Symposium (Interna- tional) on Combustion1998,27,1:1
7A customer relationship management roadmap: what is known,potential pitfalls and where to go? 显示文摘BOULDING W STAELIN R EHRET M 2005Journal of Marketing2005,69,10:1
8An update on central nervoussystem stimulant formulations in children and adolescents withattention-deficit/hyperactivity disorder 显示文摘Chavez B Sopko MA Jr Ehret MJ 2009Ann Pharmacother2009,6,43:1
9The influence of silicon on cytological interaction between Spharotheca fuliginea and cucumis sativus显示文摘 Ehret D L Glass A D M 1991Physicon Mol Plant Pathology1991,39,5:1
10Yield of cucumber infected with Pythium aphanidermatum when grow with soluble silicon显示文摘 Menzies J G Ehret D I 1994Hort Science1994,29,8:1
11Mapping responses to frequency sweeps and tones in the inferior colliculus of house mice显示文摘Hage S R Ehret G 2003Eur J Neurosci2003,18,:1
12Genome-wide association study of blood pressure and hypertension显示文摘Levy D Ehret GB Rice K 2009Nat Genet2009,41,6:1
13查看详情显示文摘Levitz P Ehret G Sinha S K Drake J M 0,,:1
14Transient EHL solution with interfacial slip 显示文摘Ehret P Dowson D Taylor C M 1999Trans ASME Journal of Tribology1999,121,:1
15Evaluation of a strand displacement amplification assay (BD Probe Tec-SDA) for detection of Neisseria gonorrhoeae in urine specimens显示文摘Akduman D Ehret JM Messina K 2002J Clin Microbiol2002,40,:1
16The effect of HIV-1 regulatory proteins on cellular genes: derepression of the IL-2 promoter by Tat 显示文摘Ehret A Li Weber M Frank R 2001Eur J Immunol2001,31,6:1
17Genomewide association study of blood pressure and hypertension显示文摘Levy D Ehret GB Rice K 2009Nat Genet2009,41,6:1
18Effects of soluble silicon on the parasitic fitness of Spherotheca fuliginea on cucumis sativus显示文摘Manzies JG Ehret DL Glass ADM 1991Phycopathology1991,81,:1
19The effects of silieon supplementation on cucumber fruit: changes in surface characteristics 显示文摘Samuels AL Glass ADM EHRET DL 1993Annals of Botany1993,72,:1
20On lubricant transport conditions in elastohydrodynamic conjunctions 显示文摘P Ehret D Dowson C M Taylor 1998Proc R Soc Lond A1998,454,:1
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