نتایج جستجو برای: rock foundations
تعداد نتایج: 69695 فیلتر نتایج به سال:
Introduction: We have completed analysis of a new near-field rock count at the Mars Pathfinder landing site and determined that the previously published [1,2] rock count suggesting 16 % cumulative fractional area (CFA) covered by rocks is incorrect. The earlier value is not so much wrong (our new CFA is 20%), as right for the wrong reason: both the old and the new CFA’s are consistent with remo...
Original scientific paper Rock burst is a common serious geological hazard in underground engineering, which seriously affects the progress of projects. The mechanism of rock burst can be explained by the distribution law of rock fragments and its fractal characteristics. A simulation experiment of rock burst was conducted with the granite samples under a biaxial loading machine system to analy...
In prion diseases, synapse dysfunction, axon retraction and loss of neuronal polarity precede neuronal death. The mechanisms driving such polarization defects, however, remain unclear. Here, we examined the contribution of RhoA-associated coiled-coil containing kinases (ROCK), key players in neuritogenesis, to prion diseases. We found that overactivation of ROCK signaling occurred in neuronal s...
1 Department of Endocrinology and Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA, 2 GIM Foundation, Little Rock, AR, USA, 3 Department of Internal Medicine and Hospital Medicine, Christus Trinity Mother Frances Hospital, Tyler, TX, USA, 4 Department of Policy, University of Arkansas for Little Rock, Little Rock, AR, USA, 5 Tutwiler Clinic, Tutwiler, MS, USA...
Abstract This paper presents the results of long-term monitoring ground subsidence above flooded mining. To assess change in shape surface, data obtained by settlement foundation a large group buildings were used. The control slope was carried out using automated hydrostatic level systems mounted on foundations 40 located this area. accumulated evolution tilt processed methods statistical analy...
This paper deals with the statistical analysis of the uniaxial compressive strength and of the elastic modulus of jointed rock masses under different confining pressures. Properties of the rock masses with different joint fabric, with and without gouge have been considered in the analysis. A large amount of experimental data of jointed rock masses from the literature has been compiled and used ...
The Univalent Foundations of Mathematics (UF) provide not only an entirely non-Cantorian conception of the basic objects of mathematics (“homotopy types” instead of “sets”) but also a novel account of how foundations ought to relate to mathematical practice. In this paper, I intend to answer the question: In what way is UF a new foundation of mathematics? I will begin by connecting UF to a prag...
سلول های بنیادی جنینی انسانی قابلیت های شگرفی در حوزه ی پزشکی و سلول درمانی دارند. در این راستا، منفرد کردن سلول های بنیادی انسانی با هدف گسترش سریع این سلول ها و انجام دست ورزی های مختلف بر روی آن ها اجتناب ناپذیر است. اما در این فرایند مانعی وجود دارد، بدین معنا که آپوپتوز القا شده در اثر فعالیت مسیر سیگنالی rho/rock که در نتیجه ی منفرد شدن سلول های بنیادی انسانی فعال می شود، کشت و دست ورزی ا...
Background: Negative regulatory mechanisms of ROCK signaling are poorly understood. We have discovered a novel mechanism to attenuate ROCK signaling. Results: Coronin1B is a novel binding partner of ROCK2 that inhibits ROCK signaling to myosin. Conclusion: Coronin1B regulates ROCK by a novel signal attenuation mechanism. Significance: Coronin1B attenuation of ROCK signaling is associated with N...
Rock bolts have been widely used as rock reinforcing members in underground coal mine roadways and tunnels. Failures of rock bolts occur as a result of overloading, corrosion, seismic burst and bad grouting, leading to catastrophic economic and personnel losses. Monitoring the health condition of the rock bolts plays an important role in ensuring the safe operation of underground mines. This wo...
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