Results 61 to 70 of about 3,836,809 (259)

The effective stress principle

open access: yesMathematical and Computer Modelling, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Reservoir Permeability Evolution during the Process of CO2-Enhanced Coalbed Methane Recovery

open access: yesEnergies, 2018
In this study, we have built a dual porosity/permeability model through accurately expressing the volumetric strain of matrix and fracture from a three-dimensional method which aims to reveal the reservoir permeability evolution during the process of CO2-
Gang Wang   +3 more
doaj   +1 more source

Creep characteristics and constitutive model of coal under triaxial stress and gas pressure

open access: yesEnergy Science & Engineering, 2020
Creep behavior is one of the most important mechanical behaviors of coal. In the present study, we systematically carried out a series of creep experiments of briquette samples under triaxial compression and gas pressure.
Liang Zhang   +5 more
doaj   +1 more source

Asymmetric response of a jammed plastic bead raft

open access: yes, 2006
Fluctuation-dissipation relations have received significant attention as a potential method for defining an effective temperature in nonequilibrium systems.
Dennin, Michael, Twardos, Michael
core   +1 more source

Technical solutions to prevent heat stress induced crop growth reduction for three climatic regions in Mexico [PDF]

open access: yes, 2008
In the last 15 years a significant increase in greenhouse area has occurred in Mexico, from a modest 50 hectares in 1990 to over 2,000 hectares in 2004. The rapid increase in greenhouse area is a result of an attractive export market, USA. Mexican summer
Henten, E.J., van   +3 more
core   +2 more sources

Stress Effect of Antilymphocyte Serum [PDF]

open access: yesBMJ, 1969
Antilymphocyte serum prepared in the rabbit against guinea-pig lymph node cells produces a sustained weight loss when injected into normal guinea-pigs over 14 days, compared with a very transient loss produced by normal rabbit serum. Antilymphocyte serum also produces a much greater increase in plasma cortisol level than normal rabbit serum.
E J, Field, D B, Cook
openaire   +2 more sources

Effective anchorage stress of prestressed tendons in PC girders under varying tensioning sequences [PDF]

open access: yesArchives of Civil Engineering
In current design codes, the standardized anchorage stress of prestressed tendons in concrete girders is uniform, which presents a notable challenge in accurately assessing the effective anchorage stress of girders with varying span lengths.
Guangqing Xiao   +5 more
doaj   +1 more source

Hope as a Source of Resilience in Later Adulthood [PDF]

open access: yes, 2006
This research provided a preliminary investigation of how variations in trait and state hope are associated with positive adaptation to stress in later adulthood.
Bergeman, C. S.   +2 more
core   +1 more source

High-temperature QCD and the classical Boltzmann equation in curved spacetime [PDF]

open access: yes, 1994
It has been shown that the high-temperature limit of perturbative thermal QCD is easily obtained from the Boltzmann transport equation for `classical' coloured particles. We generalize this treatment to curved space-time.
Bak   +16 more
core   +2 more sources

Stress amplification effect of lung [PDF]

open access: yesMedical Hypotheses, 2010
Under a blast or impact load, rapid movement of the thoracic wall generates stress in lung, a foam-like structure of high compressibility, which is different from general solids. Due to this unique characteristic, it is hypothesized that when lung is subjected to a blast or impact load, there will be an initial low stress progressively developed into a
Zhou, Hongyuan, Ma, Guowei
openaire   +3 more sources

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