Results 61 to 70 of about 1,197 (135)

Comparación del desgaste por abrasión y el desgaste por deslizamiento de los aceros aisi/sae 1020, 1045 y 4140

open access: yesEcomatemático, 2012
Two ways of evaluating the resistance to the wear, these are analyzed from the quantitative and qualitative point of view. Wear tests were realized by graze and wear by slide according to the procedure ASTM G65 and G99, in the steels AISI/SAE 1020, 1045 ...
Gustavo Jiménez-Torrado
doaj   +1 more source

Physical and Biological Study of Cell Cultures in A Bioreactor: On-Line and Off-Line Rheological Analyses

open access: yesApplied Rheology, 2011
Rheological behaviour of culture broth stands as a fundamental parameter in bioprocess performances because it affects simultaneously the heat and mass transfer as well as the flow pattern.
Manon Yannick   +4 more
doaj   +1 more source

The WHO has ratified pandemic agreement: but what will it take to ensure equitable response for future pandemics?

open access: yesGlobal Bioethics
On 20 May 2025, the World Health Organization (WHO) adopted the Pandemic Agreement at the World Health Assembly in Geneva. After nearly three years of negotiations and after failing to adopt it in 2024, this is a decisive step towards more combined ...
Marija Antanavičiūtė   +4 more
doaj   +1 more source

MODELING AND INFLUENCING FACTOR ANALYSIS OF WORN SPROCKETS IN MINING SCRAPER CONVEYOR

open access: yesJixie qiangdu
Sprocket chain ring drive system is the core component of scraper conveyors. The wear of sprocket chain socket is one of the main fault of scraper conveyors.
WANG Peng
doaj  

David Archard and Colin M. Macleod (eds.): The Moral and Political Status of Children

open access: yesIntergenerational Justice Review, 2009
No abstract.
Marisa dos Reis
doaj  

The Effect of Cycloid Gear Wear on the Transmission Accuracy of the RV Reducer

open access: yesMachines
The cycloid gear wear of RV reducers leads to the degradation of the industrial robots’ transmission accuracy, but the degradation law with respect to the wear volume is still unclear.
Yourui Tao   +4 more
doaj   +1 more source

Effect of Braking Conditions on Wear Loss of the Disc Drake Pad

open access: yesJixie chuandong
The brake pad is one of the most critical safety part in the braking system, and it plays a vital role in ensuring drivers safety. In order to investigate the effect of braking conditions on the wear loss of disc brake pads, using Ansys Workbench ...
Zhao Xiaohui   +4 more
doaj  

RESEARCH OF WHEEL TREAD WEAR AND FATIGUE BASED ON ALE METHOD

open access: yesJixie qiangdu, 2018
Apply Arbitrary Lagrangian Eulerian( ALE) and Archard wear theory to establish wheel wear analysis model of CRH5,by finite element static and steady state analysis,combined with repair operations to obtain the wheel wear law under typical conditions ...
ZHOU Xun   +5 more
doaj  

Equity and the economic evaluation of healthcare

open access: yesHealth Technology Assessment, 2001
F. Sassi, L. Archard, J. Le Grand
doaj   +1 more source

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