Results 41 to 50 of about 74,827 (269)

Investigation on welding residual stress and vibration characteristics of ring-stiffened cylindrical shell

Zhongguo Jianchuan Yanjiu, 2023
ObjectiveThis study investigates complex welding residual stress and its effect on the vibration characteristics of a ring-stiffened cylindrical shell.MethodsFusion welding with carbon dioxide as the shield gas is employed to finish the welding of a ring-
Jiangchao WANG, Xiangfei CHEN, Yexing NIU, Shizhong DU, Chaonan SHEN   +4 more
doaj   +1 more source

Thermal weights for semiclassical vibrational response functions [PDF]

The Journal of Chemical Physics, 2015
Semiclassical approximations to response functions can allow the calculation of linear and nonlinear spectroscopic observables from classical dynamics. Evaluating a canonical response function requires the related tasks of determining thermal weights for initial states and computing the dynamics of these states.
Daniel R, Moberg, Mallory, Alemi, Roger F, Loring   +2 more
openaire   +2 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

New insights into combined thermal and vibration softening of magnesium alloy in rotational vibration assisted incremental sheet forming

Journal of Magnesium and Alloys
With the generation of both localised thermal and vibration in incremental sheet forming (ISF) by novel tool designs, rotational vibration assisted ISF (RV-ISF) can achieve significant force reduction and material softening. However, the combined thermal
Hui Zhu, Xiaohan Zeng, Hui Long, João Quinta da Fonseca   +3 more
doaj   +1 more source

Effect of mechanical vibration on heat and mass transfer performance of pool boiling process in porous media: a literature review

Frontiers in Energy Research, 2023
Pool boiling in porous media has been applied in various thermal management systems by using latent heat and increasing the heat transfer area and thermal conduction path to improve the heat transfer performance.
Yuanyuan Zhao, Hongqiang Wu, Chaobin Dang   +2 more
doaj   +1 more source

Vibrational and thermal properties of crystalline topiramate [PDF]

Journal of the Brazilian Chemical Society, 2008
Topiramate, a powerful anticonvulsant drug, was investigated by X-ray diffractometry, FT-Raman, FT-IR, TGA and DTA techniques as well as by DFT calculations. From this study it was possible to tentatively assign most of the normal vibrational modes of the crystal. Thermal analysis from room temperature to 900 oC shows that the material does not present
Sena, Diniz M., Freire, Paulo T. C., Mendes Filho, Josue, Melo, Francisco E. A., Pontes, Fenelon Martinho Lima, Longo, Elson, Ferreira, Odair P., Alves, Oswaldo L.   +7 more
openaire   +4 more sources

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Thermoelastic coupling vibration analysis of precision coated TPU film

AIP Advances, 2022
TPU (thermoplastic polyurethane) films are subjected to heating in production. As the temperature rises, thermal stress will be generated inside the TPU film.
Yao Feng, Jimei Wu, Yan Wang, Mingyue Shao, Xuxia Guo   +4 more
doaj   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source