Results 101 to 110 of about 32,241 (268)

Some Experiences of Improving the Speed of Numerical Navier-Stokes Solver Using CUDA

Journal of Algorithms & Computational Technology, 2014
In this paper, the Graphics Processor Unit (GPU) is adopted to accelerate the codes of solving incompressible Navier-Stokes equations with two fully different numerical schemes: spectral method and finite difference method. Compared with the codes on CPU,
Kaiyuan Lou, Qiaohong Li, Zhaohua Yin
doaj   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

A comparative study of two models for the seismic analysis of buildings

Ingeniería e Investigación, 2012
This paper presents a model for the seismic analysis of buildings, taking two lumped masses at each level in a structure’s free nodes and comparing them to the traditional model which considers lumped masses per level, i.e., a mass for each floor of the ...
Arnulfo Luévanos Rojas
doaj  

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

General spectral characteristics of human activity and its inherent scale-free fluctuations

Scientific Reports
The scale-free nature of daily human activity has been observed in different aspects; however, the description of its spectral characteristics is incomplete.
Bálint Maczák, Zoltán Gingl, Gergely Vadai   +2 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Observational Evidence of Particle Acceleration by Relativistic Magnetic Reconnection in Gamma-Ray Bursts

The Astrophysical Journal
Gamma-ray bursts (GRBs) as the most energetic explosions in the modern universe have been studied for over half a century, but the physics of the particle acceleration and radiation responsible for their observed spectral behaviors are still not well ...
Cheng-Feng Peng, Rui-Jing Lu, Wen-Qiang Liang, Zhe-geng Chen   +3 more
doaj   +1 more source

Nanoindentation Criteria for Combinatorial Thin Film Libraries

Advanced Engineering Materials, EarlyView.
Thin‐film material libraries are compositional spreads used for screening composition‐structure‐property relationships. Nanoindentation is often used to characterize mechanical behavior across these systems, however variations in methodology are widespread.
Andre Bohn, Adie Alwen, Andrea M. Hodge
wiley   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

单峰式加速度反应谱规律性偏差统计研究

Dizhen xuebao
强震动记录显示，加速度反应谱普遍存在幅值大、宽度小的窄峰，这在现有地震动衰减关系（强震动预测方程）未能予以充分呈现。基于日本KiK-net台网近二十万条强震动记录，采用高斯曲线对单峰式加速度反应谱规律性偏差进行了拟合，利用高度、中心周期、宽度等三个参数对单峰式加速度反应谱规律性偏差予以参数化表征，分析了多个地震动、场地条件表征参数与这三个参数间的相关性，并据此建立了单峰式加速度反应谱规律性偏差的经验预测模型。分析结果表明，所建立的单峰式加速度反应谱规律性偏差经验预测模型 ...
Yushi Wang, Binxiang Zhao, Peixuan Liu, Min Li, Xiaojun Li   +4 more
doaj   +1 more source