Results 41 to 50 of about 361,220 (205)

The improved dielectric properties of natural ester oil by using ZnO and TiO2 nanoparticles

open access: yesEngineering and Applied Science Research, 2017
A transformer is one of the most important devices in a power system. It is used for changing the voltage levels in an electrical system. Its lifetime depends on the heat exchange in the liquid insulation from the core and copper winding inside the ...
Wittawat Saenkhumwong, Amnart Suksri
doaj   +1 more source

Pulsatile fatigue testing of arterial stents with radially applied load

open access: yesCurrent Directions in Biomedical Engineering
Pulsatile fatigue testing is a basic requirement for arterial stents, however, there are several opportunities to setup and conduct the testing. The recently published standard guide ASTM F2477:2023 provides specific guidance, in particular includes the ...
Schmidt Wolfram   +7 more
doaj   +1 more source

Reunión anual de ASTM

open access: yesMateriales de Construccion, 1950
No ...
Anónimo
doaj   +1 more source

Vpliv podhlajevanja na lomno žilavost martenzitnega nerjavečega jekla AISI 420 [PDF]

open access: yes, 2017
Cryogenic treatments have been employed over the last three decades in both tool and high-alloy steels to improve wear resistance, mainly through the transformation of retained austenite and the precipitation of fine carbides.
Perez Ipiña, Juan Elias   +2 more
core   +1 more source

Crystal plasticity simulation of the effect of grain size on the fatigue behavior of polycrystalline Inconel 718

open access: yes, 2018
A microstructure-based model that accounts for the effect of grain size has been developed to study the effect of grain size on the fatigue life of Inconel 718 alloys.
Cruzado, A.   +3 more
core   +1 more source

Investigating the bending properties of cardiovascular catheters and stents via three-point bending test setup

open access: yesCurrent Directions in Biomedical Engineering
The bending properties of catheters and stents have a big influence on their success during clinical application. Whereas bending stiffness directly affects the trackability of catheters, stents underlie bending when used for renal, superficial femoral ...
Brandt-Wunderlich Christoph   +5 more
doaj   +1 more source

EFECTELE IMUNOMODULATOARE ȘI ANTIINFLAMATOARE ALE MACROLIDELOR

open access: yesBuletinul Academiei de Ştiinţe a Moldovei: Ştiinţe Medicale
Introducere. Macrolidele sunt agenți chimioterapici importanți, cu efecte bacteriostatice și bactericide, utilizate în tratamentul unor afecțiuni inflamatorii cronice.
Ина ПОГОНЯ   +2 more
doaj   +1 more source

Revisão da classificação de solos para propósitos de engenharia

open access: yesGeotecnia, 1988
No presente documento apresenta-se sumariamente a revisão feita pela ASTM à classificação de solos para propósitos de engenharia (ASTM D 2487-85), referindo-se as principais alterações realizadas em relação à classificação original (ASTM D 2487-66T).
A. Gomes Correia
doaj   +1 more source

Effect of Moisture Condition on Concrete Core Strengths [PDF]

open access: yes, 2019
The main purpose of this study was to determine if there would be any major differences between curing methods of cores taken for acceptance testing from a highway slab on a project.
Halsey, Lieska, Heyen, Wally
core   +1 more source

The preparation of new perfluoroether fluids exhibiting excellent thermal-oxidative stabilities [PDF]

open access: yes
A series of low molecular weight perfluoroalkylethers (PFAE) were synthesized by direct fluorination. Viscosity-temperature properties and oxidation stabilities were determined. Viscosity-temperature correlations indicated that increases in branching and
Bierschenk, T. R.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy