Results 91 to 100 of about 17,701 (214)

Design study of TDRS antenna gimbal system for LANDSAT-D [PDF]

open access: yes
The conceptual design studies of a two axis antenna drive assembly for the TDRSS link communications subsystem for LANDSAT D are presented. The recommended antenna drive assembly is a simple and reliable design substantially similar to the antenna and ...
Wu, J.
core   +1 more source

The detection of gear noise computed by integrating the Fourier and Wavelet methods [PDF]

open access: yes, 2008
This paper presents a new gearbox noise detection algorithm based on analyzing specific points of vibration signals using the Wavelet Transform. The proposed algorithm is compared with a previouslydeveloped algorithm associated with the Fourier ...
Forcelli A.   +2 more
core  

Sustainability in Healthcare: The Role of Digital Technologies for Improving Patient Engagement

open access: yesBusiness Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT Sustainability in healthcare is getting considerable research attention as systems worldwide tend to balance environmental, social, and economic factors. In this context, digital technologies have demonstrated significant potential to enhance engagement among different consumer groups across various industries.
Francesco Schiavone   +4 more
wiley   +1 more source

Influence of Radial Deformation of Cam on Profile Modification in Harmonic Drive

open access: yesJixie chuandong, 2019
In order to solve the interference between the rigid wheel and the flexible wheel tooth profile caused by the theoretical value of the cam radial deformation is inconsistent with the reality in the harmonic drive, taking the double arc harmonic gear ...
Qianqian Jiang   +4 more
doaj  

Anticipating data sharing for student‐centred education: Governmental policy initiatives in Switzerland and Japan

open access: yesBritish Journal of Educational Technology, EarlyView.
In the context of digital transformation and platformisation of education, policy concerns are shifting from infrastructure to data use. New governmental initiatives attempt to facilitate data sharing between schools, research and governing authorities to improve student learning. These attempts to create public data spaces anticipate new topologies of
Judith Hangartner   +2 more
wiley   +1 more source

Analysis of Field Modulated Magnetic Gear with Halbach Permanent Magnet Array

open access: yesJixie chuandong, 2017
The field modulated magnetic gear is a kind of non- contact magnetic drive device,and the Halbach permanent magnet array is a new permanent magnet structure which contains permanent magnets with variable magnetizing directions.
Cao Jiayong   +3 more
doaj  

Redundant drive current imbalance problem of the Automatic Radiator Inspection Device (ARID) [PDF]

open access: yes
The Automatic Radiator Inspection Device (ARID) is a 4 Degree of Freedom (DOF) robot with redundant drive motors at each joint. The device is intended to automate the labor intensive task of space shuttle radiator inspection.
Latino, Carl D.
core   +1 more source

Rotary mechanism for wind tunnel stall/spin studies [PDF]

open access: yes, 1976
The critical problem of stall-spin characteristics of high performance aircraft and the need for experimental data in this area are reviewed. A rotary mechanism for obtaining this aerodynamic data in a conventional wind tunnel is presented.
Mancini, R. E.   +2 more
core   +1 more source

Computing Skinning Weights via Convex Duality

open access: yesComputer Graphics Forum, EarlyView.
We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley   +1 more source

Study on Hysteresis Curve Characteristic of Input Shaft of Harmonic Reducer

open access: yesJixie chuandong, 2016
A test device of torsional stiffness and hysteresis of the harmonic drive reducer are described and its experimental study is carried out. The output shaft of the harmonic gear is fixed,one- way gradual change torque is applied to the input shaft and a ...
Tang Xiaohuan   +2 more
doaj  

Home - About - Disclaimer - Privacy