نتایج جستجو برای: feldspathoid rock

تعداد نتایج: 38856  

2017
Chitharanjan Duvoor Vijaya S. Dendi Asween Marco Nawal S. Shekhawat Aditya Chada Rahul Ravilla Chaitanya K. Musham Wasique Mirza Arun Chaudhury

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...

2006
Sridevi Jade T. G. Sitharam

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 ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده علوم 1392

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...

2012
Manish K. Rana Rebecca A. Worthylake

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...

2017
Gangbing Song Weijie Li Bo Wang Siu Chun Michael Ho

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...

2005
J. A. Hurowitz S. M. McLennan N. J. Tosca R. E. Arvidson J. R. Michalski D. W. Ming C. Schröder S. W. Squyres

[1] Experimental data for alteration of synthetic Martian basalts at pH = 0–1 indicate that chemical fractionations at low pH are vastly different from those observed during terrestrial weathering. Rock surface analyses from Gusev crater are well described by the relationships apparent from low-pH experimental alteration data. A model for rock surface alteration is developed, which indicates th...

2013
Anthony P. Lyons

In terms of target detection and classification, scattering from exposed rock on the seafloor, (i.e., individual rocks and rock outcrops) presents some of the most difficult challenges for modern MCM and ASW sonar systems in shallow water. Work on characterizing, modeling and simulating mean levels and other statistical measures of acoustic scattering from rocks and rock outcrops is therefore c...

2012
Weixing Wang

Since rock fracture is a key property for different rock engineering applications, rock fracture measurement is often carried out in classifying the rock mass. Most geo-mechanics models (e.g. finite element) are of the equivalent continuum type in which fractures are represented not individually, but by their influence on a large element of the rock mass. Elastic modulus, for example, is obtain...

2008
Douglas Milne

Most empirical and numerical approaches to design in rock mechanics incorporate rock mass classification. Numerical design methods generally use classification values to calculate input parameters for stress-based failure criteria. Empirical methods use classification to allow comparisons between similar rock mass conditions, generally based on a graphical design technique that differentiates s...

Journal: :Journal of wildlife diseases 1999
J L Belant T W Seamans

To improve capture efficacy of rock doves (Columba livia) in nuisance situations, we reevaluated the effectiveness of three dosages (60, 120 and 180 mg/kg) of alpha-chloralose (AC). Responses to immobilization using 180 mg/kg AC also were compared in rock doves deprived of food for 16 hr and not food deprived. Mean (+/- SE) time to first effects (33 +/- 2 min) and mean time to capture (94 +/- 5...

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