نتایج جستجو برای: tunnel stability

تعداد نتایج: 334300  

Hossein Entezari Zarch Kazem Barkhordari,

During wars and crises, the underground tunnels are used as a safe space. Therefore, the stability and safety of them under a blast is of particular importance. In this paper, the Finite Difference Method has been used to study the influence of the change in geotechnical parameters and depth on surface blasting on subway tunnels. Results showed that increasing the internal friction angle, modul...

2014
Amritpal Singh Subhadra Gupta Majd Kuteifan Marko Lubarda Vitaliy Lomakin Oleg Mryasov

Articles you may be interested in Interlayer exchange coupled composite free layer for CoFeB/MgO based perpendicular magnetic tunnel junctions J. Thermal stability and spin-transfer switchings in MgO-based magnetic tunnel junctions with ferromagnetically and antiferromagnetically coupled synthetic free layers Appl. Effect of interlayer coupling in CoFeB/Ta/NiFe free layers on the critical switc...

Journal: :Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association 2010
Brian T Feeley Mark S Muller Seth Sherman Answorth A Allen Andrew D Pearle

PURPOSE This study evaluated different fibular-based reconstruction techniques for grade III posterolateral corner (PLC) injuries. METHODS Seven fresh-frozen cadaveric knees were used in this study. A surgical navigation system was used to determine varus opening and external rotation at 0 degrees , 30 degrees , and 60 degrees with a 9.8-Nm varus stress and 5-Nm external rotation stress appli...

2015
Dipanjan Mazumdar Xiaoyong Liu B. D. Schrag Weifeng Shen Matthew Carter Gang Xiao

Articles you may be interested in Intrinsic spin noise in MgO magnetic tunnel junctions Appl. Thermal stability and spin-transfer switchings in MgO-based magnetic tunnel junctions with ferromagnetically and antiferromagnetically coupled synthetic free layers Appl.

2002
R. Kinder G. Rupp U. K. Klostermann J. Bangert J. Wecker

When magnetic tunnel junctions (MTJ) are built into a memory device they will be arranged in a matrix; therefore some of the not addressed elements will be exposed to a significant field during the switching of one element. It has to be avoided that the state of not selected MTJ is changed during this process. Here we present data on the stability of MTJ against small fields which occur during ...

Journal: :مهندسی تونل و فضاهای زیر زمینی 0

assessment of tunnel face stability in unsaturated media based on limit analysis method mohammad amin nozari; mohammad maleki; behnam yousefi             analysis of the causes of contractor’s claims in the db contracts of underground projects in iran hadi talkhabi; majid parchami jalal; mahmood golabchi                         quality assessment of segmental lining installation in mechanized e...

Journal: :Journal of Magnetism and Magnetic Materials 2002

2017
Yasutaka Tashiro Ken Okazaki Koji Murakami Hirokazu Matsubara Kanji Osaki Yukihide Iwamoto Yasuharu Nakashima

AIM To quantitatively assess rotatory and anterior-posterior instability in vivo after anterior cruciate ligament (ACL) reconstruction using bone-patellar tendon-bone (BTB) autografts, and to clarify the influence of tunnel positions on the knee stability. METHODS Single-bundle ACL reconstruction with BTB autograft was performed on 50 patients with a mean age of 28 years using the trans-tibia...

2009
Young-Geun KIM

A new risk analysis system for estimating the risk factors in tunneling is suggested in consideration of the complex effect in tunnel construction. It is verified that various risk factors can be expressed by stability and environment index using numerical and statistical analysis. Stability index includes the factors of safety of ground condition, the amount of ground settlement, condition of ...

Journal: :Nature materials 2010
S Ikeda K Miura H Yamamoto K Mizunuma H D Gan M Endo S Kanai J Hayakawa F Matsukura H Ohno

Magnetic tunnel junctions (MTJs) with ferromagnetic electrodes possessing a perpendicular magnetic easy axis are of great interest as they have a potential for realizing next-generation high-density non-volatile memory and logic chips with high thermal stability and low critical current for current-induced magnetization switching. To attain perpendicular anisotropy, a number of material systems...

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