Results 131 to 140 of about 4,474,605 (404)

Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6

open access: yesAdvanced Engineering Materials, EarlyView.
The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter   +4 more
wiley   +1 more source

Influence of inert gases of argon and kripton on oxygen absorption

open access: yesRUDN Journal of Medicine, 2010
Consumption of oxygen by an organism of a rat at long maximum stay in the closed space decreases twice in oxygen-nitric (20-80%) environment. In oxygen-argon (20-80%) environment oxygen consumption decreases in 3 times, and in oxygen-kripton (20-80 ...
V N Ananev, A V Anikiev
doaj  

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings

open access: yesAdvanced Engineering Materials, EarlyView.
Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira   +8 more
wiley   +1 more source

THE INFLUENCE OF ALTITUDE ON THE LIMIT TIME OF MAINTAINING THE SPEED OF RUNNING AT VO2MAX (TLIMVO2MAX), FOR FOOTBALLERS

open access: yesSport şi Societate, 2015
TlimVO2max reprezintă timpul de alergare pe care un sportiv îl poate menţine la viteza aerobă maximală (VAM). Lucrarea a urmărit realizarea unui studiu în vederea identificării modului în care schimbarea de altitudine poate afecta TlimVO2max.
HONCERIU C. , TROFIN P.F.
doaj  

The temperature variation of the maximum oxygen uptake and time to exhaustion in the spinning factory workers [PDF]

open access: yesطب کار, 2013
Background: Fatigue is an important inhibiting factor in human performance, so with rising aerobic power could be overcome individual fatigue. Based on the importance of maximum oxygen consumption at fatigue threshold, the purpose of this study was to ...
Gholamreza Sharifi   +2 more
doaj  

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Mars surface based factory. Phase 2, task 1C: Computer control of a water treatment system to support a space colony on Mars [PDF]

open access: yes
In a continued effort to design a surface based factory on Mars for the production of oxygen and water, a preliminary study was made of the surface and atmospheric composition on Mars and determined the mass densities of the various gases in the Martian ...
Ali, Warsame   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy