Results 41 to 50 of about 1,886,341 (203)
Prediction method for stress and deformation of pipe roofs and its engineering application
Yantu gongcheng xuebao, 2022 When the pipe roof is used to support the shallow soft surrounding rock in advance, the accurate prediction of the mechanical response of the pipe roof is an important basis to ensure the rationality of its structural design.
WANG Wen , LEI Xiao-tian , LI De-wu
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Investigation on tunnel stability considering pipe‐roof support with transparent soil technology
Deep Underground Science and Engineering, EarlyView.This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia +4 more
wiley +1 more source
International Journal of Gynecology &Obstetrics, EarlyView.Abstract Objective To evaluate global access to robotic‐assisted laparoscopic surgery (RAS), utilization patterns, perceptions, and training exposure among surgeons practicing in gynecology and urogynecology. Methods We conducted a cross‐sectional, web‐based international survey administered through the International Urogynecological Association (IUGA)
Yair Daykan +6 more
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Nonlocal Vibration Behavior of a Viscoelastic SLGS Embedded on Visco- Pasternak Foundation Under Magnetic Field [PDF]
Journal of Nanostructures, 2013 This paper is concerned with the surface and small scale effects on transverse vibration of a viscoelastic single-layered graphene sheet (SLGS) subjected to an in-plane magnetic field.
A. Ghorbanpour-Arani, M. Shokravi
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Chengshi guidao jiaotong yanjiuObjective It is aimed to tackle the inefficient accuracy of traditional Euler-Bernoulli beam and Winkler foundation model in calculating settlement induced by shield under-passing existing tunnels. Method Based on the Timoshenko beam theory and Pasternak
WANG Liang +3 more
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Method‐dependent differences in zooplankton abundance and size metrics: Microscopy vs. ZooScan
Limnology and Oceanography: Methods, EarlyView.Abstract Image‐based approaches such as ZooScan are increasingly used for high‐throughput zooplankton monitoring. However, quantitative evaluations of methodological differences relative to conventional microscopy remain limited. In this study, zooplankton abundance and size‐based metrics obtained from microscopy and ZooScan image analysis were ...
Young Seok Jeong +4 more
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Large Amplitude Free Vibrations of Plates Resting on a Pasternak Type Elastic Foundation [PDF]
, 2014 In this paper following Berger's approximate plate theory for large deflections, large amplitude free vibrations of Rectangular Plate, isosceles right-angled triangular plate, Equilateral triangular plate and circular plate resting on a Pasternak ...
Kunda, J. C., Basuli, S.
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Nonlinear vibrations of fluid transporting pipelines on a viscoelastic foundation
Инженерно-строительный журнал, 2019 The article presents the results of a study of vibration process in pipelines conveying fluid or gas. A mathematical model pipeline was used in the form of cylindrical shell and a viscoelastic foundation in the form of two-parameter model of the ...
Bakhtiyar Khudayarov, Fozil Turaev
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Acta Psychiatrica Scandinavica, EarlyView.ABSTRACT Introduction Suicidal ideation and behaviors (SIB) are common among individuals at clinical high risk for psychosis (CHR‐P), but their relationship with the overall clinical profile remains unclear. This study aimed to identify sociodemographic/clinical factors associated with SIB in CHR‐P individuals and to examine whether subthreshold ...
Stefano Damiani +73 more
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Stability of EG cylindrical shells with shear stresses on a Pasternak foundation
, 2014 This article is the result of an investigation on the influence of a Pasternak elastic foundation on the stability of exponentially graded (EG) cylindrical shells under hydrostatic pressure, based on the first-order shear deformation theory (FOSDT ...
Najafov, A. M. +5 more
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