Results 1 to 10 of about 489,047 (156)

Evaluation of the Factors Affecting Opening-Closing Performance of Wooden Cabinet Doors

BioResources, 2023
This study determined the deflection performance of wooden cabinet doors during opening and closing by using different material types, opening-closing angle, and load force. The independent variables consisted of material type, opening-closing angle, and
Emine Seda Erdinler, Sedanur Seker, Ender Hazır, Kucuk Huseyin Koc   +3 more
doaj   +4 more sources

Influence of mechanical strength on the characteristics of aluminium profiled glazed fire door [PDF]

Scientific Reports
This study examined the impact of mechanical fatigue—caused by repeated opening and closing—on the fire resistance and airtightness of single-leaf glazed aluminium-profiled fire doors with EI 30 and EI 60 ratings.
Bartłomiej Sędłak, Marzena Jakimowicz, Krzysztof Kuczyński   +2 more
doaj   +2 more sources

Fault Simulation of High-Voltage Circuit Breaker in Low-Temperature Environment

Zhongguo dianli, 2023
High-voltage circuit breaker is important for power system, whose failure will affect the safe and stable operation. Low-temperature environment would impact the breaking performance of circuit breakers. In order to study the influence of low temperature
Jian ZHANG, Peng ZHANG, Hui XU, Mingchen GONG, Yue WANG, Jing ZHANG   +5 more
doaj   +1 more source

A Novel Air-Door Opening and Closing Identification Algorithm Using a Single Wind-Velocity Sensor

Sensors, 2022
The air-door is an important device for adjusting the air flow in a mine. It opens and closes within a short time owing to transportation and other factors.
Wentian Shang, Lijun Deng, Jian Liu
doaj   +1 more source

Design and Analysis of Prosthetic Heart Valves and Assessing the Effects of Leaflet Design on the Mechanical Attributes of the Valves

Frontiers in Mechanical Engineering, 2022
Prosthetic heart valves are commonly used as a treatment for aortic valve deficiencies. The performance of these prosthetic valves should be in accordance with the natural heart valve with respect to opening and closing, blood flow, and vortex formation.
Jaafar Ghanbari, Amirhossein Dehparvar, Amirhossein Zakeri   +2 more
doaj   +1 more source

Ambidextrous Leadership and Service Recovery Performance Under B2B Selling Context: An Examination Through Service Innovation Capability

SAGE Open, 2022
In order to build consistent service quality, managers should encourage salespeople to deal with customers and improve service errors for their overall benefit.
Bilal Ahmad, Da Liu, Mirza Huzaifa Asif, Muhammad Ashfaq, Muhammad Irfan   +4 more
doaj   +1 more source

Simulation test study on fatigue characteristics of circuit breaker insulation pull rod

IET Science, Measurement & Technology, 2022
The insulation pull rod is the main transmission mechanism of the circuit breaker. In addition to strong electrical performance, it should also have strong mechanical properties.
Liu Peng, Wu Qingsong, Wang Haoran, Cui Boyuan, Wu Zhehua, Chen Yun, Yang Yong, Peng Zongren   +7 more
doaj   +1 more source

Research on the auxiliary switch of circuit breaker operating mechanism based on multi parameter fusion in harsh environments

Xi'an Gongcheng Daxue xuebao, 2023
In this paper, accelerated aging experiments under salt spray and vibration conditions were conducted on an auxiliary switch, and the surface corrosion, opening and closing state and spring length of the auxiliary switch will be selected as ...
QIU Pengfeng, ZHOU Sijia, MA Hongming, GAO Chao, ZHOU Fusheng, YANG Yun, YANG Hao   +6 more
doaj   +1 more source

Engineering a Smart Nanofluidic Sensor for High-Performance Peroxynitrite Sensing through a Spirocyclic Ring Open/Close Reaction Strategy

ACS Sensors, 2021
Peroxynitrite (ONOO-) is an important reactive oxygen/nitrogen species that participates in a range of physiological and pathological processes by modulating ion flux through biological channels. Inspired by a ONOO--regulated K+ channel in vivo, herein, we describe the construction of a smart ONOO--driven nanosensor using a spirocyclic ring open/close ...
Yangyan Li, Le Tu, Xin Ma, Huan Chen, Yifan Fan, Qiang Zhou, Yao Sun   +6 more
openaire   +3 more sources

Investigation of the Dynamic Characteristics of a Two-Stage High-Speed On/Off Valve with Adjustable Maximum Opening

Aerospace, 2023
The effective way to improve the reliability of the fuel metering system in an aero-engine is to use a high-speed on/off valve (HSV) instead of a servo valve as the pilot stage of the fuel metering valve.
Qiang Gao, Shida Zhang, Yong Zhu
doaj   +1 more source