Results 141 to 150 of about 11,230 (303)

Bamboo‐Like Whiskers‐Reinforced Bioceramics Accelerate Large Segmental Bone Regeneration via Dual Modulation of Type‐H Vessels and Osteoinduction

open access: yesAdvanced Science, EarlyView.
The graphical abstract image of bamboo‐like whisker‐reinforced Ca‐P bioceramics accelerating large segmental bone regeneration. ABSTRACT Regenerative repair of segmental bone defect remains a major clinical challenge. The conventional mental implants suffer from mechanical strength mismatch and long‐term foreign bodies presence.
Cong Feng   +10 more
wiley   +1 more source

Design and implementation of a low cost L-band voltage controlled oscillator

open access: yesDiscover Electronics
This research introduces a novel, low-cost L-band voltage controlled oscillator (VCO) architecture that achieves exceptional performance metrics while utilizing cost-effective FR4 substrate and surface-mount components.
Aimen Akhzeroun, Islem Bouchachi
doaj   +1 more source

Design of voltage controlled oscillator based on ring oscillator in 180-nm CMOS technology

open access: yes, 2020
Ovaj rad opisuje projektiranje naponski upravljanog oscilatora na bazi prstenastog oscilatora u 180 nm CMOS tehnologiji. Arhitektura oscilatora zasniva se na prstenastoj strukturi triju ćelija za kašnjenje koje na ulazu i na izlazu imaju diferencijske ...
Gočan, Leo
core  

Synchronization‐Dissipation in the Cardiorespiratory System

open access: yesAdvanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border   +3 more
wiley   +1 more source

A Robust Oscillator for Embedded System without External Crystal

open access: yes, 2013
The robust voltage-oscillator is presented by using the constant current reference and the ring oscillator for the embedded system application.The constant current reference generates the constant current for the succeeding ring oscillator to produce a ...
Wang, Chi-Hsiung   +1 more
core  

High‐Power Terahertz Emission from Picosecond Nano‐Plasma Switching Driven by Secondary Electron Emission Avalanche

open access: yesAdvanced Science, EarlyView.
A nano‐plasma device enables watt‐level on‐chip THz generation through picosecond switching triggered by secondary electron emission avalanche. An ultra‐dense electron sheet initiates nano‐plasma formation within a ∼100 nm gap, driving rapid energy release into an integrated resonator.
Guangyu Sun   +4 more
wiley   +1 more source

Phase noise quartz oscillator and a voltage controlled oscillator

open access: yes, 2014
Проведен сравнительный анализ шумовых характеристик кварцевых генераторов и генераторов, управляемых напряжением. Приведены выражения, определяющие относительную спектральную плотность мощности фазовых шумов генераторов и графики зависимостей фазовых ...
Н.П. Кандырин   +2 more
core  

Wireless, Adaptable and Fully Implantable Battery‐powered Devices for Optical Stimulation of the Spinal Cord in Small Rodents

open access: yesAdvanced Science, EarlyView.
Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh   +8 more
wiley   +1 more source

Voltage controlled oscillator is easily aligned, has low phase noise

open access: yes, 1965
Voltage Controlled Oscillator /VCO/, represented by an equivalent RF circuit, is easily adjusted for optimum performance by varying the circuit parameter.
Sydnor, R. L.
core  

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