نتایج جستجو برای: tunnel stability analysis

تعداد نتایج: 3082261  

2015
Konstantinos Loupos Angelos Amditis Christos Stentoumis Philippe Chrobocinski Juan Victores Alberto Roncaglia Stephanos Camarinopoulos Nikos Komodakis Rafa Lopez

Nowadays tunnel structural inspections are executed based on visual (human) inspections. This is a slow process, labor expensive and subjective, while requiring lane/rail shutdown during the inspection. ROBO-SPECT is an EC co-funded research project (FP7 ICT – 611145) that, driven by the tunnel inspection industry, adapts and integrates recent research results in intelligent control in robotics...

2011
Guru Guruswamy

A procedure is developed to generate a large aerodynamic database suitable for the static stability analysis of launch vehicles in the transonic regime by using the Navier–Stokes equations. Effects of structural deformations are also included using modal representation. It is shown that a large number of cases suitable for design can be computed within practical time limitations by using effici...

Journal: :Comput. Graph. Forum 2015
Jan Byska Adam Jurcik Eduard Gröller Ivan Viola Barbora Kozlíková

Studying the characteristics of proteins and their inner void space, including their geometry, physico-chemical properties and dynamics are instrumental for evaluating the reactivity of the protein with other small molecules. The analysis of long simulations of molecular dynamics produces a large number of voids which have to be further explored and evaluated. In this paper we propose three new...

The load entering from the ground surrounding on the tunnel’s lining is one of the effective parameters in the designation of a tunnel. The amount of this parameter, which is called Rock load in a rocky environment, depends on several factors such as the overburden thickness, geological and geomechanical conditions and the depth of tunnel. In the present study, the amount of rock load for the L...

Journal: :Fluid dynamics & materials processing 2022

The large deformation of soft rock tunnel is one the key problems to be overcome in construction stage. In present study, mechanism a representative and some related countermeasures are investigated using field tests engineering geological analysis. Owing scarce performances methods based on other criteria such as small pipe spacing, anchor bolt length steel frame new support scheme implemented...

2013
J. H. Ko I. S. Han S. H. Han K. S. Lee

In this study, a numerical procedure is described for the transient response analysis of a submerged floating tunnel with reference of a designed tunnel in Japan. Tension legs seizing the tunnel are simply modeled by a spring elements and the tunnel itself is assumed by two rigid bodies between which a flexible joint is used. A recorded seismic excitation is used while the wave load is calculat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران - دانشکده علوم 1387

چکیده ندارد.

2003
Alexander V. Fedorov Norman D. Malmuth Hans G. Hornung

A second-mode stability analysis has been performed for a hypersonic boundary layer on a wall covered by a porous coating with equally spaced cylindrical blind microholes. Massive reduction of the second mode ampliŽ cation is found to be due to the disturbance energy absorption by the porous layer. This stabilization effect was demonstrated by experiments recently conducted on a sharp cone in t...

Journal: :the archives of bone and joint surgery 0
mohammad h ebrahimzadeh orthopedic research center, ghaem department of nerosurgery hosein mashhadi nejad department of nerosurgery, ghaem hospital, mashhad university of medical science, mashhad, 91766-99199, iran. ali moradi research center, ghaem hospital, mashhad university of medical science, mashhad, 91766-99199, iran. amir reza kachooei orthopedic research center, ghaem hospital, mashhad university of medical science, mashhad, 91766-99199, iran.

background: carpal tunnel syndrome (cts) is a compression neuropathy that causes paresthesia, pain or numbness in the territory of median nerve. the aim of this study is to compare the open surgery outcome and patients` satisfaction in carpal tunnel syndrome among diabetic and non-diabetic patients. methods: in a retrospective cohort study from april 2011 to june 2012, patients suffered from ca...

Journal: :caspian journal of neurological sciences 0
parisa maddahian-najafabadi majid ghasemi associate professor of neurology, department of neurology, isfahan neuroscience research center, alzahra hospital, isfahan university of medical sciences, isfahan, iran ; [email protected] fariborz khorvash saghar abbasi maryam mohamadi

background: carpal tunnel syndrome is the most common neuropathy in the general population. nerve conduction studies are among the standard methods for diagnosing carpal tunnel syndrome. electromyography is painful and unpleasant, and if nerve conduction studies can be used to diagnose axonal injury in carpal tunnel syndrome, electromyography might be replaced. objectives: this study aimed to e...

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