Results 61 to 70 of about 316,098 (246)

Maximum power of saline and fresh water mixing in estuaries [PDF]

Earth System Dynamics, 2019
According to Kleidon (2016), natural systems evolve towards a state of maximum power, leading to higher levels of entropy production by different mechanisms, including gravitational circulation in alluvial estuaries.
Z. Zhang, Z. Zhang, H. Savenije
doaj   +1 more source

Reliability of a hydrostatic bearing [PDF]

, 2013
This paper presents a methodology for evaluating the failure probability of fluid bearings, which are sensitive components for the design of machine rotors, mechatronic systems, and high precision metrology.
A. Ambari, AMBARI, Abdelhak, K. Diop, CHARKI, Abdérafi, S. Champmartin, CHAMPMARTIN, Stephane, A. Charki, DIOP, Khadim   +7 more
core   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

Advanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss, Shiyi Wang, Brian P. Setzler, Yushan Yan, Adam Z. Weber   +4 more
wiley   +1 more source

Position estimation for synchronous motor drives: unified framework for design and analysis [PDF]

, 2017
This paper deals with the model-based speed and position estimation for synchronous reluctance motors (SyRMs) and interior permanent-magnet synchronous motors (IPMs).
Saarakkala, Seppo E., Tuovinen, Toni, Seppo E. Saarakkala, Eemeli Molsa, Mölsä, Eemeli, Awan, Hafiz Asad Ali, Marko Hinkkanen, Hafiz Asad Ali Awan, Toni Tuovinen, Hinkkanen, Marko   +9 more
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Disadvantageous effects of vibrations on the micro-hydraulic relief valve: experimental approach

Aviation
The paper discusses the negative impact of external mechanical vibrations, which lead to the malfunction of drive systems, particularly affecting hydrostatic drives.
Krzysztof Towarnicki
doaj   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

Advanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke, Zongwen Fu, Sebastian Burgmann, Uwe Janoske, Carlos Doñate‐Buendía, Bilal Gökce   +5 more
wiley   +1 more source

Multilayer Biobased Poly(ethylene furanoate)/Graphene Oxide Nanofibrous Membranes With Directional Water Transport for Efficient Microplastics Filtration

Advanced Materials Technologies, EarlyView.
A self‐assembled multilayer biobased PEF/GO nanofibrous membrane was developed by electrospinning for efficient PLA microplastics (MPs) filtration. The membrane combines superhydrophilicity, directional water transport, mechanical robustness, and a synergistic size‐exclusion interception and electrostatic repulsion MPs separation mechanism, enabling ...
Juraij Kandiyil, Sumayya Ansari, Prasanna Kumar S Mural, Yaser E. Greish, Adnan Younis, Akmal Nazir, Muhammad Z. Iqbal   +6 more
wiley   +1 more source

Hydrostatic Pressure-Enhanced Correlated Magnetism and Chern Insulator in Moiré WSe_{2}

Physical Review X
Moiré semiconductors offer flat bands where Coulomb interactions and band topology intertwine, while the interlayer coupling plays a core role in the formation of moiré potential.
Pengfei Jiao, Chenghao Qian, Ning Mao, Xumin Chang, Jiayong Xiao, Feng Liu, Shaozheng Wang, Xiaokai Wu, Di Peng, Cheng Xu, Hongliang Dong, Yuchen Zheng, Juncai Wu, Tong Zheng, Kenji Watanabe, Takashi Taniguchi, Jinfeng Jia, Xiaoxue Liu, Zhiwen Shi, Shiyong Wang, Guorui Chen, Tingxin Li, Ruidan Zhong, Yang Zhang, Dong Qian, Zhiqiang Chen, Shengwei Jiang   +26 more
doaj   +1 more source

Modular Design for Sensorless Control of Synchronous Machine Drives With an LC Filter

Publisher Copyright: © 2025 IEEE.This paper presents a modular design for sensorless control of synchronous machine drives equipped with an LC filter.
Hartikainen, Hannu, Hinkkanen, Marko
core   +1 more source