Results 101 to 110 of about 256,373 (245)

Coupled analysis of two-dimensional acoustic and membrane vibration by concentrated mass model

Nihon Kikai Gakkai ronbunshu, 2016
Some acoustic problems such as interior noise analysis of vehicles need to be treated as structural-acoustic coupled problems because the coupling effect cannot be ignored. To solve such problems, the finite element method (FEM) has been used.
Ataru MATSUO, Satoshi ISHIKAWA, Shinya KIJIMOTO, Ryoma OWAKI   +3 more
doaj   +1 more source

Finite frequency current noise in the Holstein model

, 2017
We investigate the effects of local vibrational excitations in the nonsymmetrized current noise $S(\omega)$ of a nanojunction. For this purpose, we analyze a simple model - the Holstein model - in which the junction is described by a single electronic ...
Belzig, Wolfgang, Rastelli, Gianluca, Stadler, Pascal   +2 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Green's function of fully anharmonic lattice vibration

, 2008
Motivated by the discovery of superconductivity in beta-pyrochlore oxides, we study property of rattling motion coupled with conduction electrons. We derive the general expression of the Green's function of fully anharmonic lattice vibration within the ...
Abrikosov A. A., Brühwiler M., Cowley R. A., Dahm T., Dahm T., Eliashberg G. M., Eliashberg G. M., Fetter A. L., Goto T., Goto T., Goto T., Hasegawa T., Hiroi Z., Hiroi Z., Hiroi Z., Hui J. C., Kuneš J., Kuneš J., Mahan G. D., Takasu Y., Takasu Y., Yamaura J., Yoshida M.   +22 more
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Structural and acoustic response due to excitation from ship stern: overview and suggestions for future research

Zhongguo Jianchuan Yanjiu, 2017
Several decades after the development of acoustic stealth technology for ships, there remains an urgent necessity to reduce low frequency structural and acoustic response due to excitation from the stern.
HUA Hongxing, YU Qiang
doaj   +1 more source

Modal analysis of multistage gear systems coupled with gearbox vibrations [PDF]

An analytical procedure to simulate vibrations in gear transmission systems is presented. This procedure couples the dynamics of the rotor-bearing gear system with the vibration in the gear box structure. The model synthesis method is used in solving the
Choy, F. K., Ruan, Y. F., Townsend, D. P., Tu, Y. K., Zakrajsek, J. J.   +4 more
core   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

Advanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian, Anh Thi Le, Anh Thi Van Le, Dung My Thi Dang, Tin Chanh Duc Doan, Chien Mau Dang, Martin Bolduc   +6 more
wiley   +1 more source

Design of Hydraulic Induced Bidirectional Coupling Coiled Tubing Drag Reducer

Shiyou jixie, 2020
The low rigidity of the coiled tubing makes it easy to buckle during running or drilling, which leads to increased drag and even locking. To address the problem, based on the Coanda effect and the Carmen vortex effect, a hydraulically induced ...
Dou Yihua, Wang Zhiyong, Cao Yinping, Zheng Jie   +3 more
doaj  

Vibration of the liner in an industrial combustion system due to an acoustic field [PDF]

, 2003
The subject of this paper is a numerical study of the properties of the liner of a test rig to be built in the future. The test-rig consists of a flexible tube of square crosssection surrounded by a pressure vessel, also with a square cross-section.
Boer, André de, Huls, Rob A., Kok, Jim B.W.   +2 more
core   +2 more sources