Results 31 to 40 of about 279,849 (339)

Dynamic Behavior of RC Columns Confined with Micro-Expansive Concrete-Filled Steel Tubes Subjected to Lateral Low-Velocity Impact: Experimental and Numerical Study

open access: yesBuildings, 2022
In order to improve the anti-collision capacity of existing reinforced concrete (RC) columns under vehicle impact load, an experimental study on the anti-collision performance of RC columns strengthened with micro-expansive concrete filled steel tube was
Xin Liu   +6 more
doaj   +1 more source

T-square dependence of the electronic thermal resistivity in metallic strontium titanate [PDF]

open access: yesPhys. Rev. Lett. 131, 016301 (2023), 2023
The temperature dependence of the phase space for electron-electron (e-e) collisions leads to a T-square contribution to electrical resistivity of metals. Umklapp scattering are identified as the origin of momentum loss due to e-e scattering in dense metals.
arxiv   +1 more source

Directed flow in relativistic resistive magneto-hydrodynamic expansion for symmetric and asymmetric collision systems [PDF]

open access: yes, 2022
We construct a dynamical model for high-energy heavy-ion collision based on the relativistic resistive magneto-hydrodynamic framework. Using our newly developed (3+1)-dimensional relativistic resistive magneto-hydrodynamics code, we investigate magneto-hydrodynamic expansion in symmetric and asymmetric collision systems as a first application to high ...
arxiv   +1 more source

Electron transport in Coulomb- and tunnel-coupled one-dimensional systems [PDF]

open access: yes, 2000
We develop a linear theory of electron transport for a system of two identical quantum wires in a wide range of the wire length L, unifying both the ballistic and diffusive transport regimes.
  +16 more
core   +3 more sources

New hash function based on C-MD structure and chaotic neural network

open access: yes网络与信息安全学报, 2023
In recent years, widely used hash algorithms such as MD5 and SHA-1 have been found to have varying degrees of security risks.The iterative structure of the SHA-2 algorithm is similar to that of SHA-1, making it vulnerable to attacks as well.Meanwhile ...
Liquan CHEN   +4 more
doaj   +3 more sources

Research on Bridge Structure Reliability Evaluation due to Vessels Collison Based on a Statistical Moment Method

open access: yesAdvances in Materials Science and Engineering, 2021
Damage to bridge structures caused by vessel collision is a risk for bridges crossing water traffic routes. Therefore, safety around vessel collision of existing and planned bridges is one of the key technical problems that must be solved by engineering ...
Tao Fu, Yang Liu, Zhixin Zhu
doaj   +1 more source

The Symbiosis between Collision and Preimage Resistance [PDF]

open access: yes, 2011
We revisit the definitions of preimage resistance, focussing on the question of finding a definition that is simple enough to prove security against, yet flexible enough to be of use for most applications. We give an in-depth analysis of existing preimage resistance notions, introduce several new notions, and establish relations and separations between
Andreeva, Elena, Stam, Martijn
openaire   +3 more sources

Sequential Hashing with Minimum Padding

open access: yesCryptography, 2018
This article presents a sequential domain extension scheme with minimum padding for hashing using a compression function. The proposed domain extension scheme is free from the length extension property.
Shoichi Hirose
doaj   +1 more source

Collision-Resistance from Multi-Collision-Resistance [PDF]

open access: yes, 2022
Collision-resistant hash functions (CRH) are a fundamental and ubiquitous cryptographic primitive. Several recent works have studied a relaxation of CRH called t-way multi-collision-resistant hash functions (t-MCRH).
Prashant Nalini Vasudevan   +1 more
core  

Investigation of Collision Toughness and Energy Distribution for Hot Press Forming Center Pillar Applied with Combination Techniques of Patchwork and Partial Softening Using Side Crash Simulation

open access: yesMetals, 2022
Various techniques can be applied to center pillars to enhance collision characteristics during side crashes. For instance, patchwork (PW) can be welded to the center pillar to increase its stiffness, and partial softening (PS) can be applied to provide ...
Min Sik Lee   +4 more
doaj   +1 more source

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