Results 241 to 250 of about 489,146 (255)
Some of the next articles are maybe not open access.
Design and Performance Evaluation of a Hybrid Hand Exoskeleton for Hand Opening/Closing
Journal of Medical Devices, 2021Abstract Finger extensor muscle weakness and flexor hypertonia are the most commonly reported issues among patients suffering from amyotrophic lateral sclerosis (ALS). Moreover, the relative hyperflexion of the wrist and fingers has limited their ability to voluntarily open the hand and interact with the external environment.
Gull, Muhammad Ahsan; id_orcid 0000-0003-3169-2145 +3 more
openaire +2 more sources
Numerical study on sealing performance after wear of plug valve during opening–closing process
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2023The failure of the plug valve seal may result in dangerous accidents in the production and transportation process of petroleum and chemical products. In the paper at hand, the operating life of the plug valve is studied in the opening–closing process. The adhesion wear between the sealing surface of the plug valve is numerically studied in micro-scale,
Junjie Lu, Changsheng Zhu, Daixing Lu
openaire +1 more source
The influence of open/closed innovation on employees’ performance
International Journal of Organizational Analysis, 2018Purpose The purpose of this paper is to examine critically the different influences of open/closed innovation on employees’ performance. Design/methodology/approach The paper takes into account the different influence of open and closed innovation on the performance of employees. Some previous literature was reviewed and the quantitative method used
Mohammad Alawamleh +3 more
openaire +1 more source
Open-Close Loop Control of ALP With Improved Performance Function
Journal of Offshore Mechanics and Arctic Engineering, 1998A linear open-close loop control strategy is presented for controlling the response of the offshore articulated leg platform (ALP) in which the performance function involves structural acceleration in addition to the usual state variables, i.e., angular displacement and velocity of the tower, and the sea surface elevation and its variables.
B. P. Suneja, T. K. Datta
openaire +1 more source
Study on Dynamic Performance of High Spot Open-Closed Gripper Mechanism in Printing Machine
Key Engineering Materials, 2009The paper aims at attacking and noise problems of high spot open-closed gripper mechanism in printing machine in a high speed situation. The analytical method of dynamic performance is presented based on the relative motion, the absolute motion, and the mechanical model. And the analytical equations are established.
Guo Dong Liu, Lin Lin Liu, Lei Zhang
openaire +1 more source
2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2020
GIS (Gas-Insulated Switchgear) has been widely used in power systems due to its high capacity, high reliability and environmental friendliness. The opening/closing coil used for GIS is the core component of the operating mechanism in GIS, by driving the ejector to perform a series of actions to complete the opening or closing action of the circuit ...
Guichan Liu +5 more
openaire +1 more source
GIS (Gas-Insulated Switchgear) has been widely used in power systems due to its high capacity, high reliability and environmental friendliness. The opening/closing coil used for GIS is the core component of the operating mechanism in GIS, by driving the ejector to perform a series of actions to complete the opening or closing action of the circuit ...
Guichan Liu +5 more
openaire +1 more source
Marine Biology, 1969
An opening-closing, single-sample net system designed to capture micronektonic organisms is described. The net is opened and closed at the mouth by mechanical time-release devices, and can be hauled from small ships on hydrographic wire. Data are presented from a series of 4 hauls made with this system during a study of sonic scattering layers.
I. E. Davies, E. G. Barham
openaire +1 more source
An opening-closing, single-sample net system designed to capture micronektonic organisms is described. The net is opened and closed at the mouth by mechanical time-release devices, and can be hauled from small ships on hydrographic wire. Data are presented from a series of 4 hauls made with this system during a study of sonic scattering layers.
I. E. Davies, E. G. Barham
openaire +1 more source
Economics of Education Review, 2016
Abstract Open campus privileges in high schools can be conditional on students’ academic (GPA, test scores, etc.) or behavioral (absences, probation, etc.) performance. I evaluate the effectiveness of this incentive scheme in improving student academic outcomes using a dataset covering over 460 California high schools over a 10-year period and their ...
openaire +1 more source
Abstract Open campus privileges in high schools can be conditional on students’ academic (GPA, test scores, etc.) or behavioral (absences, probation, etc.) performance. I evaluate the effectiveness of this incentive scheme in improving student academic outcomes using a dataset covering over 460 California high schools over a 10-year period and their ...
openaire +1 more source
Angewandte Chemie International Edition
Abstract Inorganic polyoxometalate (POM) crystals are a promising class of materials with considerable potential in modern laser science and technology. However, the limited understanding of POM formation mechanisms and the unclear structure‐property relationship between POMs and nonlinear optics (NLO) have ...
Wei Zeng +7 more
openaire +1 more source
Abstract Inorganic polyoxometalate (POM) crystals are a promising class of materials with considerable potential in modern laser science and technology. However, the limited understanding of POM formation mechanisms and the unclear structure‐property relationship between POMs and nonlinear optics (NLO) have ...
Wei Zeng +7 more
openaire +1 more source