Results 121 to 130 of about 6,851 (300)
Energy Science &Engineering, EarlyView.In this study, the key control mechanism of surrounding rock stability is revealed by theoretical analysis and UDEC‐Trigon numerical simulation method, aiming at the problem that oil shale roof is prone to separation and slip deformation under complex stress.
Jiang Xiao +5 more
wiley +1 more source
Energy Science &Engineering, EarlyView.A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley +1 more source
Earthquake Characteristics of Bridges with Integral Abutments
Journal of Structural Engineering, 1997 Earthquake analysis of bridges requires that the period and damping ratio be determined for each significant mode of vibration. Data on these vibration properties, identified from motions of bridges recorded during actual earthquake events, provide the most direct means of verifying and improving the current guidelines.
openaire +3 more sources
Energy Science &Engineering, EarlyView.Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang +7 more
wiley +1 more source
PAN AIR: A computer program for predicting subsonic or supersonic linear potential flows about arbitrary configurations using a higher order panel method. Volume 2: User's manual (version 3.0) [PDF]
A comprehensive description of user problem definition for the PAN AIR (Panel Aerodynamics) system is given. PAN AIR solves the 3-D linear integral equations of subsonic and supersonic flow.
Baruah, Pranab K. +5 more
core +1 more source
Future Postharvest and Food, EarlyView.By lowering oxidative stress and lens protein aggregation, nutraceuticals enriched with antioxidants may reduce the development of senile cataracts, demonstrating their potential as supplemental, non‐pharmacological cataract preventive methods. ABSTRACT This review explores the emerging evidence to accommodate the developing requirement of non ...
Moubani Dutta +2 more
wiley +1 more source
Non‐linear analysis of an integral bridge
Journal of Civil Engineering and Management, 2010 This study describes the implementation of a 2‐D finite element model of an integral abutment bridge (IAB) system which explicitly incorporates the nonlinear soil response.
Jamaloddin Noorzaei +3 more
doaj
Analysis of numerical models of an integral bridge resting on an elastic half-space
Studia Geotechnica et MechanicaThe paper presents three methods of the numerical modeling of a 60 m long integral bridge structure resting on an elastic half-space. For the analysis, three bridge models were built using Abaqus FEA software.
Helowicz Andrzej
doaj +1 more source
Method and means for damping nutation in a satellite Patent [PDF]
, 1966 Flexible turnstile antenna system for reducing nutation in spin-oriented ...
Kuebler, M. E.
core +1 more source
Induced abortion in the world: 3. In search of a minimum common ground
International Journal of Gynecology &Obstetrics, EarlyView.Abstract The rising worldwide trend toward legalization of termination of pregnancy has been accompanied by increased polarization around abortion. Two opposite broad coalitions emerged from this confrontation, generally known as the “pro‐life” and “pro‐choice” movements. The basic issue for pro‐life advocates is that the protection of “innocent, human
Giuseppe Benagiano +4 more
wiley +1 more source