Results 21 to 30 of about 4,844,174 (339)

Literature Survey of Experiment of Vibration and Response for Rotating Blade with Dry Friction Damper

Hangkong gongcheng jinzhan, 2018
It is of important significance to study the vibration characteristics and vibration suppression technology of aero-engine rotating blades to improve the engine performance, structural integrity and working reliability.
Qin Jie, Yan Qun, Huang Wenchao
doaj   +1 more source

Literature Survey of Dry Friction Damper Model and Analysis Method forDepressing Vibration of Rotating Blade

Hangkong gongcheng jinzhan, 2018
Rotating blades are key components in aircraft engine, the vibration characteristics and vibration reduction technology is rather important for engine performance, structural integrity, and work reliability.
Qin Jie, Yan Qun, Huang Wenchao
doaj   +1 more source

The Macroscopic Phenomena in Plasticity

Metals, 2023
In this paper, the fundamental principles of plastic flow localization are briefly outlined. During the development of plastic flow, there is a changeover in the localization patterns conforming to the corresponding stage of work hardening based on the ...
Lev Zuev, Svetlana Barannikova
doaj   +1 more source

An Image Case of Lepromatous Leprosy in a Patient With Parkinson Disease

Annals of Internal Medicine: Clinical Cases
A 72-year-old man with Parkinson disease presented with 18 months of diffuse blotchiness without associated pain or pruritis. Fite stain and Mycobacterium leprae polymerase chain reaction of a skin biopsy specimen were positive, and he was diagnosed with
Rachel E. Strength, Shirin Mazumder
doaj   +1 more source

Extreme thermal load generation method for high-temperature structures in atmospheric environment

Xibei Gongye Daxue Xuebao
For addressing the severe aerodynamic thermal load simulation challenge of hypersonic aircraft in ground tests, an extreme thermal load generation method based graphite for high-temperature structures in atmospheric environment is proposed.
WANG Binwen, ZHANG Yi, QIN Qiang, CHEN Hong, WU Jingtao   +4 more
doaj   +1 more source

Review on dynamics design techniques of propeller engine installation system

Hangkong gongcheng jinzhan
With the acceleration of propeller engine installation system's localization，the relevant technical research of installation system must be carried out，in which the dynamics design is one of the important parts. The dynamic performance characteristics of
CHEN Yonghui, CHEN Chunlan, YAN Qun, XU Jian, DONG Wanyuan, WANG Jianqiang   +5 more
doaj   +1 more source

Resistance Training for Older Adults: Position Statement From the National Strength and Conditioning Association.

Journal of Strength and Conditioning Research, 2019
Fragala, MS, Cadore, EL, Dorgo, S, Izquierdo, M, Kraemer, WJ, Peterson, MD, and Ryan, ED. Resistance training for older adults: position statement from the national strength and conditioning association.
Maren S Fragala, E. Cadore, S. Dorgo, M. Izquierdo, W. Kraemer, M. Peterson, E. Ryan   +6 more
semanticscholar   +1 more source

Design and Testing of a Device to Investigate Dynamic Performance of Aero-Engine Rotor–Stator Rubbing Dynamics

Eng
To analyze the wear performance induced by rotor–stator rubbing in an aero-engine sealing structure under authentic operating conditions, a transonic rotor system with double bearing is constructed. This system incorporates the disk, shaft, blades, joint
Qinqin Mu, Qun Yan, Peng Sun, Yonghui Chen, Jiaqi Chang, Shiyu Huo   +5 more
doaj   +1 more source

Oscillator strengths and collision strengths for S II

The Astrophysical Journal, 1980
Observations of the optical extreme-ultraviolet spectrum of the Jupiter planetary system during the Voyager space mission revealed bright emission lines of some sulfur ions. The spectra of the torus at the orbit of Io are likely to contain S V lines. The described investigation provides oscillator strengths and collision strengths for the first four UV
Yew Kam Ho, Ronald J. W. Henry
openaire   +2 more sources

The Strength Model of Self-Control

Encyclopedia of Behavioral Medicine, 2007
Self-control is a central function of the self and an important key to success in life. The exertion of self-control appears to depend on a limited resource.
R. Baumeister, K. Vohs, D. Tice
semanticscholar   +1 more source