نتایج جستجو برای: fracture dip angle
تعداد نتایج: 230050 فیلتر نتایج به سال:
[1] The uppermost 2 km of oceanic crust created near the southern end of the Juan de Fuca Ridge ( 60 mm/yr, full spreading rate) is exposed in a ‘‘tectonic window’’ created along the north wall of the Blanco Transform Fault. A total of 27 submersible dives transect this escarpment over a distance of >30 km, corresponding to 1 m.y. of spreading history. In this exposure, weakly deformed basaltic...
A numerical procedure to determine the equivalent hydrodynamic dispersion coefficients and Péclet number (Pe) of a fractured rock is presented using random walk particle tracking method. The geometrical effects of fracture system on hydrodynamic dispersion are studied. The results obtained from the proposed method agree well with those of empirical models, which are the scale-dependent hydrodyn...
We study experimentally the fracture dynamics during the peeling at a constant velocity of a roller adhesive tape mounted on a freely rotating pulley. Thanks to a high speed camera, we measure, in an intermediate range of peeling velocities, high frequency oscillations between phases of slow and rapid propagation of the peeling fracture. This so-called stick-slip regime is well known as the con...
introduction: the resistance to fracture of endodontically treated teeth restored with esthetic post systems has not been extensively researched. this in vitro study compared the fracture patterns of endodontically treated teeth with esthetic post systems with different analysis methods. materials and methods: a total of 26 recently extracted human maxillary central incisors were decoronated an...
We present 2D dynamic rupture models of the 2011 Tohoku-Oki earthquake based on linear slip-weakening friction. We use different types of available observations to constrain our model parameters. The distribution of stress drop is determined by the final slip distribution from slip inversions. As three groups of along-dip slip distribution are suggested by different slip inversions, we present ...
Edward Dawe FRCS(Tr & Orth) BSC(Hons) Dip(SEM), Specialty Registrar Year 8, Royal Surrey County Hospital Guildford, Honorary Clinical Lecturer Brighton and Sussex Medical School, ORKSS research collaborative Piers Page MPhil MRCSEd, Specialty Registrar Year 4, Frimley Park Hospital, Honorary Clinical Lecturer Brighton and Sussex Medical School, ORKSS research collaborative Hip fracture, while a...
S U M M A R Y Radial and azimuthal anisotropy in seismic wave speeds have long been observed using surface waves and are believed to be controlled by deformation within the Earth’s crust and uppermost mantle. Although radial and azimuthal anisotropy reflect important aspects of anisotropic media, few studies have tried to interpret them jointly. We describe a method of inversion that interprets...
Rock fracture and its failure with time due to external forces other factors such as fluids, temperature have always been a major concern in rock engineering construction. Based on thermodynamics theory of solid physics, authors propose an energy criterion for rheological rock, which considers two effects: (1) dissipation reduces strength rock; (2) confining pressure increases rock. Subsequentl...
the miscible displacement process appears to be an increasingly feasible method for the extraction of oil from depleted reservoirs. however, there is a lack of fundamental understanding of how fracture geometrical characteristics impact the oil recovery efficiency in this type of enhanced oil recovery technique. in this work, a series of experimental tests were conducted whereby the n-heptane ...
تشخیص لنگش های بند سوم که از مهترین علت های لنگش در اسب می باشد نیاز به فهم یافته های نرمال رادیوگرافی بند سوم دارد. از آنجایی که تاکنون اطلاعات دقیقی در مورد اندازه ها و زوایای بند سوم در اسب عرب خون داخلی به دست نیامده و مقایسه ای با نژادهای دیگر اسب ها صورت نگرفته است. در این تحقیق سعی شده است که خصوصیات بیومتریک بند سوم دست اسب عرب اصیل توسط رادیولوژی مورد بررسی قرار گیرد. در این تحقیق 10 ...
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