Results 71 to 80 of about 475,312 (295)

Relationship between Locations of Facial Injury and the Use of Bicycle Helmets: A Systematic Review

Archives of Plastic Surgery, 2015
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, Yun Moon Jeon, Yeong Seung Ko, Yeon Soo Kim   +3 more
doaj   +1 more source

Portfolios and Assessment of Personal Protective Devices Course Learning [PDF]

Research and Development in Medical Education, 2015
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

Aerodynamic protection for space flight vehicles Patent [PDF]

, 1967
Development and characteristics of protective coatings for ...
Parmley, R. T.
core   +1 more source

Encapsulation of a fiber taper coupled microtoroid resonator in a polymer matrix

, 2013
We encapsulated a high-quality (Q) factor optical whispering gallery mode (WGM) microtoroid resonator together with its side coupled fiber taper inside a low refractive index polymer, achieving a final Q higher than 10^7.
Friedlein, Jacob, Monifi, Faraz, Ozdemir, Sahin Kaya, Yang, Lan   +3 more
core   +1 more source

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

Advanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann, Patrick Schiebel, David May   +2 more
wiley   +1 more source

Barriers to the enforcement of motorcycle helmet laws: Insights from police and legislators [PDF]

Archives of Trauma Research
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, Leila Kouchakinejad-Eramsadati, Enayatollah Homaie Rad, Zahra Mohtasham-Amiri, Soofia Heidari, Marieh Hosseinpour, Naema Khodadadi-Hassankiadeh   +6 more
doaj   +1 more source

Corrosion behaviour of nitrided ferritic stainless steels for use in solid oxide fuel cell devices

, 2020
Plasma nitriding was applied to ferritic stainless steel substrates to improve their performances as interconnects for solid oxide fuel cell devices. The samples underwent electrical conductivity test and SEM/EDS, TEM/EDS, environmental-SEM analyses. The
Bianco, M., Hong, J., Poitel, S., Steinberger-Wilckens, R., Van herle, J., Wang, Z., Willinger, M., Yang, S.   +7 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 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., Gebhart, F. L., Hall, T. C., Peters, J. W.   +3 more
core   +1 more source

Method of construction of a multi-cell solar array [PDF]

, 1979
The method of constructing a high voltage, low power, multicell solar array is described. A solar cell base region is formed in a substrate such as but not limited to silicon or sapphire.
Feltner, W. R., Hollis, B. R., Jr., Routh, D. E.   +2 more
core   +1 more source