Results 61 to 70 of about 10,509 (298)
Investigation on 220 GHz Taper Cascaded Over-Mode Circular Waveguide TE0n Mode Converter [PDF]
, 2021 This paper proposes a taper cascaded over-mode circular waveguide TE0n mode converter for the millimeter and terahertz wave gyrotron. The mode converter of this structure can effectively reduce the difficulty of high frequency mode converter in ...
Tongbin Yang +5 more
core +1 more source
Adaptivni Sistemi Avtomatičnogo Upravlinnâ, 2020 The article focuses on electromagnetic processes in the electric circuits with semiconductor switches. The mathematical model of the converter with twelve-zone regulation of output voltage has been developed to analyse electromagnetic processes in ...
V. Mykhailenko +2 more
doaj +1 more source
Interleaved step-up soft-switching DC–DC Boost converter without auxiliary switches
Energy Reports, 2022 A voltage gain interleaved soft switched DC–DC Boost converter without auxiliary switch is proposed in this paper. Step-up characteristics are achieved without using any transformer, coupled inductor, voltage multiplier cell, switched inductor/switched ...
M. Rezvanyvardom +6 more
doaj +1 more source
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
Switched Inductor Double Switch High Gain DC-DC Converter for Renewable Applications
IEEE Access, 2021 High voltage gain DC-DC converter is a prime requirement for renewable applications, in particular for PV. Though numerous DC-DC converter is available for increasing the voltage gain, the passive elements requirement is higher which reduces the ...
Danyang Bao +5 more
doaj +1 more source
Semiconductor optical digital-to-analogue converter
Electronics Letters, 2005 A semiconductor-integrated optical digital-to-analogue converter, consisting of input and output multimode interference couplers, and one-bit delay line, has been realised for the first time. Small bending curvature owing to the large refractive index difference results in the small size with the delay line of about 1 cm length for 10 Gbit/s optical ...
H. Uenohara, R. Kurosawa
openaire +1 more source
Advanced Functional Materials, EarlyView.Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler +4 more
wiley +1 more source
Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes
Advanced Functional Materials, EarlyView.We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar +13 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Tandem 2D vdW ferroelectric heterojunctions enable spectrally selective, self‐powered bipolar opto‐synaptic responses for retinal ON/OFF bipolar cell emulation and wavelength‐programmable logic operations. This work establishes vdW ferroelectric heterojunctions as a compelling materials platform for energy‐efficient, adaptive, and human‐like artificial
Rajiv Kumar Pandey +4 more
wiley +1 more source
A direct A.C. to A.C. regenerative frequency and voltage converter [PDF]
, 1980 Includes bibliographical references.The reliable variable speed operation of an a. c. machine over a wide speed range is a problem that has received attention for some time.
Case, Michael James
core