Results 31 to 40 of about 1,892,709 (308)

Interactive Effects of Rarefaction and Surface Roughness on Aerodynamic Lubrication of Microbearings

Micromachines, 2019
The aerodynamic lubrication performance of gas microbearing has a particularly critical impact on the stability of the bearing-rotor system in micromachines.
Yao Wu, Lihua Yang, Tengfei Xu, Haoliang Xu   +3 more
doaj   +1 more source

A lightweight low-frequency sound insulation membrane-type acoustic metamaterial

AIP Advances, 2016
A novel membrane-type acoustic metamaterial with a high sound transmission loss (STL) at low frequencies (⩽500Hz) was designed and the mechanisms were investigated by using negative mass density theory.
Kuan Lu, Jiu Hui Wu, Dong Guan, Nansha Gao, Li Jing   +4 more
doaj   +1 more source

Numerical simulation of oil-water separation characteristics in Y-tube

Gongye shui chuli
Pipeline-type oil-water separation technology has the advantages of small footprint, high separation efficiency and low cost. A Y-type tubular oil-water separation structure was designed based on the principle of pipeline-type oil-water separation.
HUA Jian, HU Jiahao, MA Zhongjie, LI Wei, WANG Linhu   +4 more
doaj   +1 more source

Aluminum alloys with improved strength [PDF]

, 1975
Mechanical strength and stress corrosion of new BAR and 7050 alloys that include Zn instead of Cr have been studied and compared with those of 7075 aluminum alloy.
Adler, P., Deiasi, R.
core   +1 more source

Selective linear or quadratic optomechanical coupling via measurement [PDF]

, 2011
The ability to engineer both linear and non-linear coupling with a mechanical resonator is an important goal for the preparation and investigation of macroscopic mechanical quantum behavior.
H. M. Wiseman, M. Schlosshauer
core   +3 more sources

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine, Ofélie Trudeau‐Ferrin, Caroline Laverdière, Patrick Hamel, Rosanne Superstein, Bénédicte Koukoui, Carole Provost, Paul C. Nathan, Vijay Ramaswamy, Furqan Shaikh, Brenda Gallie, Ashwin Mallipatna, Stephanie Kletke, Helen Dimaras, Hallie Coltin   +14 more
wiley   +1 more source

Effect of a Nonlinear Energy Sink on the Nonlinear Panel Flutter Suppression Under Variable Temperature Rise and Airflow Yawed Angle

International Journal of Aerospace Engineering
This study investigates the nonlinear aeroelastic response behaviors and robustness of a square isotropic panel with a nonlinear energy sink (NES) considering temperature rise and airflow yawed angle.
Zhou Jian, Guo Yilin, Gao Zehao, Xu Minglong   +3 more
doaj   +1 more source

A Novel Stick-Slip Type Rotary Piezoelectric Actuator

Advances in Materials Science and Engineering, 2020
A novel stick-slip rotary piezoelectric actuator is designed for optical use. The actuator is proposed, fabricated, and tested with the aim of realizing both fine resolution and a long stroke.
Yuan Wang, Minglong Xu, Shubao Shao, Siyang Song, Yan Shao   +4 more
doaj   +1 more source

Form Finding of Asymmetric Cable Network Reflector with Flexible Ring Truss

Applied Sciences, 2022
In this work, the form finding of an asymmetric cable network reflector is considered by taking into account the elastic deformation of the flexible ring truss.
Zifan Hu, Yajun Luo, Xinong Zhang
doaj   +1 more source

Determination of mechanical properties of historical paper based on NIR spectroscopy and chemometrics - a new instrument [PDF]

, 2008
Due to sampling restrictions in the analysis of cultural heritage materials, non-destructive approaches are intensively sought for. While NIR spectrometry has rarely been used for this purpose due to the complexity of the spectra, chemometric methods can
A. Höskuldsson, D. Lichtblau, G.R. Brereton, H.P. Garthwaite, H.W. Siesler, J. Kolar, J. Kolar, J.C. Roberts, M. Anders, M. Strlič, M. Strlič, T. Trafela, T. Trafela, X. Zou   +13 more
core   +1 more source