Results 121 to 130 of about 33,314 (300)

A New Extendable Transformerless Quasi‐Resonant Step‐Up DC/DC Converter With Low Voltage and Current Stresses

open access: yesEnergy Science & Engineering
This paper introduces a new expandable non‐isolated quadratic step‐up DC/DC converter with low voltage and current stresses as well as low input current ripple for renewable resources applications. This circuit is based on a double switch quadratic boost
Sara Hasanpour, Tohid Nouri
doaj   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner   +9 more
wiley   +1 more source

Solar cell system having alternating current output [PDF]

open access: yes, 1980
A monolithic multijunction solar cell was modified by fabricating an integrated circuit inverter on the back of the cell to produce a device capable of generating an alternating current output. In another embodiment, integrated curcuit power conditioning
Evans, J. C., Jr.
core   +1 more source

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou   +17 more
wiley   +1 more source

An Improved Cascaded Boost Topology According to the Voltage Lift Technique With Low Voltage Stress of Components

open access: yesIEEE Access
This paper proposes a new non-isolated DC-DC converter according to the use of a cascaded boost topology, and a diode-capacitor voltage multiplier cell. The bold points of the proposed topology are as: 1) the input current is continuous, which decreases ...
Mohammad Reza Shaker Ardakani   +4 more
doaj   +1 more source

A novel laser ranging system for measurement of ground-to-satellite distances [PDF]

open access: yes
A technique was developed for improving the precision of laser ranging measurements of ground-to-satellite distances. The method employs a mode-locked laser transmitter and utilizes an image converter tube equipped with deflection plates in measuring the
Golden, K. E.   +3 more
core   +1 more source

Battery charge-discharge controller [PDF]

open access: yes, 1969
Charge-discharge controller contains punched-tape programmer capable of programming 305 discrete steps in the battery load. The indicating instrumentation includes meters for ampere-hours, watt-hours, voltage, current, and internal temperature and ...
Ciccanti, A. D.
core   +1 more source

Electron–Matter Interactions During Electron Beam Nanopatterning

open access: yesAdvanced Functional Materials, EarlyView.
This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima   +2 more
wiley   +1 more source

Extensive Review of Materials for Next‐Generation Transparent Batteries and Their Design Strategies

open access: yesAdvanced Functional Materials, EarlyView.
Review explores emerging materials and design strategies for transparent batteries, examining electrodes, electrolytes, separators, and device architectures optimized for high electrochemical performance, mechanical flexibility, and optical transparency.
Atul Kumar Mishra   +5 more
wiley   +1 more source

Low power low voltage adder cells for digital multiplier

open access: yes, 2004
As battery operated devices prevail, power consumption in digital signal processor has emerged as an increasingly critical design constraint in addition to the pursuit of timing closure and area efficiency. Addition and multiplication, being the fundamental arithmetic operations in digital signal processors and microprocessors, are subjects of ...
openaire   +1 more source

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