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Stability analysis of steel compression members under shock loads
Published 2018-04-01“…This paper presents the results of a numerical analysis of the elastic-plastic behaviour of steel compression members subjected to compression with a permanent pre-deformation in the longitudinal axis by a longitudinal indispensable shock load. A differential load intensity was considered up to the loss of stability. …”
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42
Multiple film plane diagnostic for shocked lattice measurements (invited)
Published 2003“…In these experiments, static film and x-ray streak cameras recorded x rays diffracted from lattice planes both parallel and perpendicular to the shock direction. …”
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Shock-Induced Energy Release Performances of PTFE/Al/Oxide
Published 2022-04-01“…The mechanism analysis shows that the shock-induced energy release performance of PTFE/Al energetic material is affected by the intensity of the shock wave and the chemical reaction extent of the material under the corresponding intensity. …”
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44
Effects of bevelled nozzles on standoff shocks in supersonic impinging jets
Published 2021“…In particular, the strength and relative position of the reflection point are identified as the major contributing factors influencing the upstream static pressure distribution of the standoff shock, hence leading to the observed changes in the standoff shock behaviour.…”
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45
Identifying gene regulatory modules of heat shock response in yeast
Published 2008-09-01“…</p> <p>Results</p> <p>Integrating transcription factor binding site (TFBS), mutant, ChIP-chip, and heat shock time series gene expression data, we develop a method, called Heat-Inducible Module Identification Algorithm (HIMIA), for reconstructing GRMs of yeast heat shock response. …”
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46
Lithotripter shock wave induced RNA-based gene therapy
Published 2017“…In conclusion, this thesis has shown that by choosing parameters appropriately, shock waves can be a promising strategy for the delivery of genes to cells.…”
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Molecular dynamics simulations of the Debye-Waller effect in shocked copper
Published 2008“…We present an analysis of the directionally dependent x-ray structure factors (and, hence, intensities) predicted by nonequilibrium molecular dynamics simulations of statically compressed and shocked single crystals of copper, and comment on the feasibility of using experimentally measured intensities to infer temperature information. …”
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Static and dynamic metrics of economic resilience for interdependent infrastructure and industry sectors
Published 2014“…Infrastructures are needed for maintaining functionality and stability of society, while being put under substantial stresses from natural or man-made shocks. Since avoiding shock is impossible, increased focus is given to infrastructure resilience, which denotes the ability to recover and operate under new stable regimes. …”
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49
Application of Prandtl’s Theory in the Design of an Experimental Chamber for Static Pressure Measurements
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A constrained transport scheme for MHD on unstructured static and moving meshes
Published 2015“…Here we present a new method to evolve the ideal magnetohydrodynamic (MHD) equations on unstructured static and moving meshes that preserves the magnetic field divergence-free constraint to machine precision. …”
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52
Effect of overpressure and pulse repetition frequency on cavitation in shock wave lithotripsy.
Published 2002“…Our hypothesis is that overpressure or slow PRF causes unstabilized bubbles produced by one shock pulse to dissolve before they nucleate cavitation by subsequent shock pulses. …”
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Design-oriented prediction of operational shock and vibration for hard disk drives
Published 2009“…The air bearing model is developed using finite volume formulation and modified quasi-static concept. The coupled structural and air bearing models can simulate the shock response at drive level and also predict the operational shock tolerance effectively. …”
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54
Picosecond dynamics of a shock-driven displacive phase transformation in Zr
Published 2016“…The emergence of femtosecond x-ray diffraction techniques provides insight into the dynamics of short-time-scale events such as shocks. We report laser pump-probe experiments of the response of Zr to laser-driven shocks over the first few nanoseconds of the shock event, enabling the α→ω transition and orientation relationship to be observed in real time with picosecond resolution. …”
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High-pressure, high-strain-rate lattice response of shocked materials
Published 2003“…In situ x-ray diffraction has been used to directly measure the response of the shocked lattice during shock loading. Static film and x-ray streak cameras recorded x rays diffracted from lattice planes both parallel and perpendicular to the shock direction. …”
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56
Numerical analysis of the shock train evolution in planar nozzles with throat length
Published 2023-01-01“…In the throat section, for the central region of the flow, as the throat length increases, the flow fluctuates and decelerates. Oblique shock waves are produced, and a shock train region is formed. …”
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An anti‐vibration‐shock inertial matching measurement method for hull deformation
Published 2022-06-01“…To solve these problems, the authors put forward a new algorithm named as attitude quaternion matching method‐improved double factor adaptive Kalman filter‐parameter adaptive Kalman filter (AQM‐IDFAKF‐PAKF). (1) The AQM established the FGU attitude as observation to build the basic model for hull deformation inertial matching method. (2) The authors introduced IDFAKF to track the trend of dynamic hull deformation in vibration interference by using historical data. (3) After judging the anti‐vibration‐shock calculation stop node, PAKF was utilised to adaptively adjust the parameters of hull deformation matching after vibration‐shock, so as to quickly calculate the static hull deformation angle after shock interference. …”
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Effect of grain size on amorphization mechanism and kinetics of bridgmanite in shocked meteorites
Published 2023-07-01“…Abstract Bridgmanite formation and amorphization in shocked meteorites constrain the pressure and temperature conditions during planetary impact. …”
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Development of metal shock absorber for storage of nuclear spent fuel cask
Published 2023-10-01“…Two tests were done for static compression characteristics using cubic specimens and energy absorption capacity against 2.5 m drop using 1/4 scale mockup of metal shock absorber. …”
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Collective nature of plasticity in mediating phase transformation under shock compression
Published 2014“…An open question in the behavior of metals subjected to shock is the nature of the deformation that couples to the phase transformation process. …”
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