Results 181 to 190 of about 7,680,621 (399)

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Effectiveness of Male Condoms: Frequently Asked Questions [PDF]

open access: yes, 2007
More than two decades of research and experience have provided new insights into the role of male condoms for contraception and HIV prevention. However, given that the number of people infected and living with HIV continues to grow, it is essential to ...

core  

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

Pengaruh penambahan alpha tocopherol terhadap kualitas semen entog yang disimpan pada suhu dingin

open access: yesJurnal Ilmu-Ilmu Peternakan, 2014
The study was conducted to evaluate the effect alpha-tocopherol addition on the quality of muscovy duck semen during the storage process at 4 0C. The materials of the study were 4 male Muscovy ducks aged between 1.5 – 2.0 years old.
Fitriani Fitriani
doaj  

Exposing dairy bulls to high temperature-humidity index during spermatogenesis compromises subsequent embryo development in vitro [PDF]

open access: yes, 2020
Broekhuijse, Marleen L.W.J.   +10 more
core   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Structural analysis of Uganda’s pig semen value chain: Actor networks, challenges, and opportunities

open access: yesJournal of Agriculture and Rural Development in the Tropics and Subtropics
Uganda's pig sector has expanded significantly, supporting households and value chain actors, and stimulating development in boar semen production. Despite this growth, the relationships and roles among actors within the boar semen production node remain
Isaac Kasoro   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy