Results 81 to 90 of about 475,002 (275)
Testing the operation of protection devices against parallel arc breakdown and spark gaps in the event of a ground faultTHE PURPOSE. Develop a laboratory rig for testing parallel arc fault and spark gap protection devices for tripping in the event of a ...
A. N. Tyurin +2 more
doaj +1 more source
Relationship between Locations of Facial Injury and the Use of Bicycle Helmets: A Systematic Review
The aim of this study is to review the protective effect of a bicycle helmet on each facial location systematically. PubMed was searched for articles published before December 12, 2014.
Kun Hwang +3 more
doaj +1 more source
Portfolios and Assessment of Personal Protective Devices Course Learning [PDF]
Introduction: Portfolio assessment is one of the new and most accurate assessment methods. The objective of this study was to examine the introduction of portfolios in the assessment of students’ learning in a personal protective devices course. Methods:
Seyedeh Negar Assadi
doaj +1 more source
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar +6 more
wiley +1 more source
Barriers to the enforcement of motorcycle helmet laws: Insights from police and legislators [PDF]
Background: Many motorcyclists choose not to wear helmets, yet it remains unclear why they are not being fined by police or other authorities.Objectives: The aim of this study was to explore legislators’ perspectives on the factors contributing to the ...
Shahrokh Yousefzade‑Chabok +6 more
doaj +1 more source
Aerodynamic protection for space flight vehicles Patent [PDF]
Development and characteristics of protective coatings for ...
Parmley, R. T.
core +1 more source
Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +1 more source
Feasibility study of silicon nitride protection of plastic encapsulated semiconductors [PDF]
The application of low temperature silicon nitride protective layers on wire bonded integrated circuits mounted on lead frame assemblies is reported. An evaluation of the mechanical and electrical compatibility of both plasma nitride and photochemical ...
Erickson, J. J. +3 more
core +1 more source
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu +8 more
wiley +1 more source
Personnel Protective Equipment: Forgotten Protocol, Invigorated by COVID-19
Objective: To make the readers cognizant about the use of Personnel Protective Equipment (PPEs) and infection control practices which should always form a part of basic patient management and not arise with every emerging disease.
Namdeo Prabhu, Rakhi Issrani
doaj

