Results 61 to 70 of about 12,040 (234)
Deep Underground Science and Engineering, EarlyView.The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai +7 more
wiley +1 more source
Ionization versus displacement damage effects in proton irradiated CMOS sensors manufactured in deep submicron process [PDF]
, 2009 Proton irradiation effects have been studied on CMOS image sensors manufactured in a 0.18 μm technology dedicated to imaging. The ionizing dose and displacement damage effects were discriminated and localized thanks to 60Co irradiations and large ...
Bernard, Frédéric +4 more
core +2 more sources
Deep Underground Science and Engineering, EarlyView.Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang +4 more
wiley +1 more source
A preliminary investigation of the dynamic viscoelastic relaxation of bovine cortical bone
EPJ Web of Conferences, 2015 A new experimental approach is proposed to characterize the dynamic viscoelastic relaxation behaviour of cortical bone. Theoretical models are presented to show that a linear viscoelastic material, when allowed to relax between two long elastic bars ...
Loete T.J.C., Paul G., Ismail E.B.
doaj +1 more source
Dynamic Compression Tests – Current Achievements and Future Development
Engineering Transactions, 2014 In this paper a modified arrangement of the DICT technique was introduced. Miniatur- ization of bar and use of shadow principle to make a measurement of displacement allow to obtain strain rate up to 2.2×105 s−1.
W. MOĆKO, Z. L. KOWALEWSKI
doaj +1 more source
On the high strain rate behavior of 63-37 Sn-Pb eutectic solders with temperature effects [PDF]
, 2014 This study presents experimental results performed on samples of Eutectic solder material (63 wt. % Sn 37 wt. % Pb) loaded at high strain rates and elevated temperatures.
Bin Wang +20 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
Characterisation and modelling of structural bonding at high strain rate
EPJ Web of Conferences, 2012 These paper deals with the development of new bonded joint modelling for crash application. A new testing device has been set up on Split Hopkinson bars in order to identify adhesive’s properties in assemblies for high strain rate and for different ...
Lesueur D. +5 more
doaj +1 more source
Optimal CCD readout by digital correlated double sampling
, 2015 Digital correlated double sampling (DCDS), a readout technique for charge-coupled devices (CCD), is gaining popularity in astronomical applications. By using an oversampling ADC and a digital filter, a DCDS system can achieve a better performance than ...
Abusleme, Angel +5 more
core +1 more source
Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin [PDF]
, 2006 We measured prokaryotic production and respiration in the major water masses of the North Atlantic down to a depth of,4,000 m by following the progression of the two branches of North Atlantic Deep Water (NADW) in the oceanic conveyor belt.
Aristegui, Javier +7 more
core +2 more sources