Results 21 to 30 of about 1,583,866 (313)

Analysis of Natural Pollution Accumulation Characteristics of Insulators for Railroads in High-Altitude Environment

Energies, 2023
Railway system insulators are affected by pollution, altitude, and other environmental situations during operation, which causes reduced electrical performance or even flashover accidents.
Zhijin Zhang, Siyi Chen, Xingliang Jiang, Jianlin Hu, Qin Hu   +4 more
doaj   +1 more source

Implementation of explosion safety regulations in design of a mobile robot for coal mines [PDF]

, 2018
The article focuses on specific challenges of the design of a reconnaissance mobile robotic system aimed for inspection in underground coal mine areas after a catastrophic event.
Babjak, Ján, Konečný, Zdeněk, Kot, Tomáš, Lopez, Angel Rodriguez, Moczulski, Wojciech, Novák, Petr   +5 more
core   +2 more sources

Development of an efficient finite element model for the dynamic analysis of the train-bridge interaction [PDF]

, 2010
The design of high-speed railway bridges comprises a set of demands, from safety and serviceability aspects, to new types of equipment and construction solutions.
Azevedo, A., Calcada, R., Neves, Sérgio
core   +1 more source

Acoustic characterization of internal leakage in safety valves based on large eddy simulation and Möhring acoustic analogy

Urban Lifeline
Safety valves are important overpressure protection devices in nuclear power regulators and main steam systems, and internal leakage is one of the most common forms of failure.
Yanbing Zhang, Zhongyuan Xu, Zhitao Sun, Ying Chen, Cheng Zhang   +4 more
doaj   +1 more source

Design of Electromagnetic Compatibility Testing and Control System for Fully Automatic Elevator Control Cabinets Based on Embedded Technology

Kongzhi Yu Xinxi Jishu
In response to the problems of current electromagnetic compatibility testing methods for elevator control cabinets, including low intelligence, cumbersome operation, and lack of elevator system status monitoring, this paper proposes an electromagnetic ...
SONG Laijun, WANG Huifang, NI Minmin, LU Dong, LI Xiaolu, TANG Hailong, SUN Dandan   +6 more
doaj   +1 more source

Standards for material handling and facilities equipment proofload testing [PDF]

, 1970
Document provides information on verifying the safety of material handling and facilities equipment /MH/FE/, ranging from monorail systems to ladders and non-powered mobile equipment.
Bonn, S. P.
core   +1 more source

Buoffant cap [PDF]

, 2020
Bouffant cap is safety product like a loose cap net that can secured around the head with an elastic. This product is usually used in cleanrooms, food service and medical field. According to Personal protective equipment, frequently referred to as "PPE,"
Hamzah, Hayati, Ismail, Nur Saadiah, Othman, Siti Amira   +2 more
core  

Evaluation of in vitro toxicity of common phytochemicals included in weight loss supplements using 1H NMR spectroscopy

FEBS Open Bio, EarlyView.
We investigated the toxicity of 12 active compounds commonly found in herbal weight loss supplements (WLS) using human liver and colon cell models. Epigallocatechin‐3‐gallate was the only compound showing significant toxicity. Metabolic profiling revealed protein degradation, disrupted energy and lipid metabolism suggesting that the inclusion of EGCG ...
Emily C. Davies, Garth L. Maker, Ian F. Musgrave, Samantha Lodge   +3 more
wiley   +1 more source

Property Changes of Chopped Glass Fiber-Reinforced Sheet Molding Compound Composite in Acid-Base Environment

International Journal of Polymer Science
To investigate the influence of acid-base environments on the properties of chopped fiber-reinforced resin matrix composites, corresponding unsealed specimens were prepared.
Qi Chen, Yazhong Xia, Jiuyang Yu, Tianyi Zhang, Bowen Liu, Yaonan Dai   +5 more
doaj   +1 more source

High voltage protection network [PDF]

, 1972
Circuit protects technical personnel and test equipment from hazardous currents conducted through safety barriers and into data acquisition equipment.
Cambra, J. M.
core   +1 more source