Results 41 to 50 of about 555 (244)
Ultrawide Bandwidth Optomechanical Magnetometry Using Flux Concentration
Advanced Functional Materials, EarlyView.High‐permeability flux concentrators enable ultrawide‐bandwidth chip‐scale optomechanical magnetometry by exploiting magnetic nonlinearity to up‐convert low‐frequency fields to the mechanical resonance, where sensitivity is optimal. This enables flat wideband operation over more than four orders of magnitude, from tens of kilohertz to sub‐hertz ...
Benjamin J. Carey +6 more
wiley +1 more source
Study on DC-DC converters [PDF]
, 2018 The rapidly increase in power generation demand have shorten the life span of natural resources such as fossil fuels. This issue alarmed the survival of human kind to continue to explore for alternative sources to sustain power generation.
Chua, Jolene
core
Design of a stagger‐tuned high‐power low‐stress capacitive wireless power transfer system
The Journal of EngineeringCapacitive power transfer (CPT) has emerged as a promising alternative to traditional inductive methods. CPT offers advantages like cost‐effectiveness, reduced weight and volume, and greater tolerance to alignment errors.
Kyle John Williams +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Electroforming‐free TiN/SiOx/Cu/SiOx/TiN memristive devices exploit pancake‐like Cu nanoparticles embedded in a SiOx double layer to create a heterogeneous Schottky‐barrier landscape. Under bias, oxygen‐vacancy redistribution progressively lowers local barriers and recruits initially inactive Cu‐PC pathways into a parallel conduction ensemble, enabling
Rouven Lamprecht +10 more
wiley +1 more source
DC to DC inverter for backup power supplies with super-capacitors [PDF]
, 2019 Master’s thesis deals with the design concept of DC/DC convertor usable for a backup source with supercapacitors. The paper describes the theoretical knowledge of supercapacitors technology, principle of basic DC/DC convertors and their use in electrical
Pavlík, Arnošt
core
Tuning Mechanoreceptor Signaling Enhances the Adjuvant Effect of Biomaterial Vaccines
Advanced Functional Materials, EarlyView.Matrix stiffness serves as an independent immunological signal in biomaterial vaccines. Stiffer microporous hydrogel vaccines enhance dendritic cell maturation and migration to draining lymph nodes, promote T follicular helper cell expansion through Yap/Taz signaling, and increase antigen‐specific antibody production.
Lily Shang +13 more
wiley +1 more source
Investigation into different types of single-phase AC/DC convertors [PDF]
, 1995 The work detailed in the thesis compares the performance of single-phase thyristor bridge converters under different control strategies; considering in particular the efficiency, ac side power factor and harmonic content of the current and voltage ...
Vahik Babayan-Aghan (7203635)
core
IET Power ElectronicsThe problem of submodule switching frequency reduction in half‐bridge modular multilevel converters (HB‐MMCs) with capacitor voltage self‐balancing control is considered and explored in this paper.
Yiyuan Zhou +4 more
doaj +1 more source
IET Power Electronics, 2023 Control for single‐phase cascaded H‐bridge rectifier (CHBR) under distorted grid voltage is seldom discussed in the existing control methods; a modified direct power control (DPC) scheme is therefore proposed in this paper.
Haoran Liu +4 more
doaj +1 more source
Thermally Robust Spin–Orbit Torque Switching in Low‐Resistivity Mo‐Alloyed β‐W Heterostructures
Advanced Functional Materials, EarlyView.Mo‐alloyed β‐W heterostructures exhibit enhanced spin‐orbit torque efficiency, reduced resistivity and switching current density, and reliable operation from −50 to +150°C. The optimized W87.3Mo12.7 device achieves high spin Hall conductivity with thermal robustness, highlighting its potential for energy‐efficient magnetic memory and automotive ...
Han Seok Ko +7 more
wiley +1 more source