Results 11 to 20 of about 388,704 (251)
Norwegian Police Use of Firearms: Critical Decision-Makingin Dynamic and Stressful Situations [PDF]
Nordic Journal of Studies in Policing, 2020 Abstract This is the first study of police decision-making regarding the use of firearms in the Norwegian context; its purpose is to study how police emergency response officers make decisions on the use of firearms, and to understand the contextual factors underlying these decisions.
Steinar Vee Henriksen, Bjørn Ivar Kruke
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Depinning with dynamic stress overshoots: A hybrid of critical and pseudohysteretic behavior [PDF]
Physical Review E, 2003 A model of an elastic manifold driven through a random medium by an applied force F is studied focussing on the effects of inertia and elastic waves, in particular {\it stress overshoots} in which motion of one segment of the manifold causes a temporary stress on its neighboring segments in addition to the static stress. Such stress overshoots decrease
Schwarz, J. M., Fisher, Daniel S.
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Journal of Rock Mechanics and Geotechnical Engineering, 2023 Jointed rock specimens with a natural replicated joint surface oriented at a mean dip angle of 60° were prepared, and a series of cyclic triaxial tests was performed at different confining pressures and cyclic deviatoric stress amplitudes.
Waranga Habaraduwa Peellage +2 more
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Buildings, 2023 An embankment is needed to satisfy the requirements for the longitudinal slope of railway lines, and ground reinforcement is also generally required in loess regions. The present study attempted to understand the effects of different ground reinforcement
Xinsheng Wei +3 more
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Dynamic strength of fly ash-modified loess subgrade under influences of drying-wetting cycle
Yantu gongcheng xuebao, 2020 The traffic load and the drying-wetting cycle have an important influence on the strength characteristics and stability of fly ash-modified loess subgrade. To illustrate the influences of drying-wetting cycle on the strength of the fly ash-modified loess,
ZHONG Xiu-mei 1, WANG Qian 1, LIU Zhao-zhao 1, 2, BAI Lan 3, MA Jin-lian 1, LIU Fu-qiang 1, 2, LI Na1, WANG Jun 1
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Effect of stress pulse shape on the dynamic fracture of soda-lime glass [PDF]
EPJ Web of Conferences, 2021 The goal of this paper is to evaluate the tensile strength and fracture behavior of the soda lime glass under static and dynamic loading using Brazilian tests.
Buchar Jaroslav, Trnka Jan
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Physical modeling of long-term dynamic characteristics of the subgrade for medium–low-speed maglevs
Railway Engineering Science, 2023 To investigate the dynamic characteristics and long-term dynamic stability of the new subgrade structure of medium–low-speed (MLS) maglevs, cyclic vibration tests were performed under natural and rainfall conditions, and the dynamic response of the ...
Minqi Dong +6 more
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Determination of the critical stress for the initiation of dynamic transformation in commercially pure titanium [PDF]
Scripta Materialia, 2017 The dynamic transformation of alpha to beta is shown to take place in titanium at temperatures below the beta transus. The driving force for this transformation is the net softening associated with the formation of the lower flow stress beta phase. The obstacle to the transformation consists of the free energy difference between the phases as well as ...
Clodualdo Aranas +5 more
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Shuiwen dizhi gongcheng dizhi, 2022 In order to study the dynamic characteristics of the undisturbed lateritic soil subgrade under cyclic loading, the dynamic triaxial tests of undisturbed laterite are carried out with the SDT-20 dynamic triaxial apparatus.
Rui MU +5 more
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Mechanism and Control of Rockburst Induced by Draining Spatial Islands and Squaring
Geofluids, 2022 A small-pillar gob-side roadway showed rockburst appearance during the mining of a gob-side working face located in the Shaanxi-Inner Mongolia mining area.
Yunhai Cheng +4 more
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