Results 111 to 120 of about 1,341,828 (286)

Impact of pressure on the transmission performance of underwater wireless power transfer systems

Results in Engineering
This paper systematically investigates the effects of pressure on the performance of underwater wireless power transfer (WPT) systems by modeling the changes in coupler parameters and their impact on system power and efficiency.
Yihui Zhao, Xiaoting Guo, Wenxuan Zhou, Shaowei Rao, Fanghui Yin, Yiming Zhang   +5 more
doaj   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

THYRISTOR RESONANT DEVICES WITH MUTUAL INDUCTANCE

, 1992
The aim of the work is to make the class of the electric energy converters providing the electromagnetic compatibility with network and load, on base of the discrete resonant devices with mutual inductance and to investigate the electromagnetic processes
Roginskaya, Lubov Emmanuilovna
core  

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

An Offline Identification Method of Mutual-inductance Parameters between Stator and Rotor of Induction Motor

Kongzhi Yu Xinxi Jishu, 2012
The Model Reference Adaptive System (MRAS) is adopted based on VVVF start to identify the rotor speed. In order to identify the mutual-inductance parameters under offline when the motor with load, an offline identification method of mutual-inductance ...
NIU Ying, ZHANG Shaoyun, LIU Fei, ZHANG Tiejun, CHEN Gang   +4 more
doaj  

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

A.C. mutual inductance bridge for low temperature magnetic transition measurements

, 1987
The design of a mutual inductance coil assembly and its use as the detection device of an inductance bridge (modified Hartshorn bridge) is described. The coil was used to measure the superconducting transition temperature of several materials of known ...
Berggren, David C.
core   +1 more source

Analytical Modeling of Slot Leakage Inductance for Hairpin Windings

Machines
With the increasing demand for higher efficiency and power density, innovative winding techniques have become crucial in modern electric machines. Hairpin windings are increasingly used in electric machines, particularly in high-current applications.
Hasnain Nisar, Ali M. Bazzi
doaj   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source