Results 41 to 50 of about 536,866 (306)

On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's [PDF]

open access: yes, 1990
A unified systematic approach to the design of voltage-controlled oscillators using only operational transconductance amplifiers (OTA's) and capacitors is discussed in this paper.
Huertas Díaz, José Luis   +3 more
core   +1 more source

Wide-Input High-Step-Up DC–DC Converter with High Efficiency and High Voltage Gain

open access: yesEnergies
This study proposes a wide-input high-step-up DC–DC converter with high efficiency and high voltage conversion ratio. Two coupled inductors were adopted to achieve a parallel-charging and series-discharging energy transfer mechanism, and a voltage ...
Yu-En Wu, Wei-Shan Lin
doaj   +1 more source

On the first Townsend coefficient at high electric field

open access: yes, 2004
Based on the simplified approach it is shown and experimentally confirmed that gas gain in wire chambers at very low pressure becomes higher on thicker wires at the same applied high voltage.
Davydov, Yu. I.
core   +1 more source

Low Gain Avalanche Detectors (LGAD) for particle physics and synchrotron applications [PDF]

open access: yes, 2018
A new avalanche silicon detector concept is introduced with a low gain in the region of ten, known as a Low Gain Avalanche Detector, LGAD. The detector's characteristics are simulated via a full process simulation to obtain the required doping profiles ...
Ashby, J.   +8 more
core   +1 more source

Voltage Stabilization in Microgrids via Quadratic Droop Control [PDF]

open access: yes, 2009
We consider the problem of voltage stability and reactive power balancing in islanded small-scale electrical networks outfitted with DC/AC inverters ("microgrids").
Simpson-Porco, John W.   +2 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

A Coupled Inductor Based High Voltage Gain DC-DC Converter Using Interleaved Voltage Multiplier Cells

open access: yesIranian Journal of Electrical and Electronic Engineering, 2020
In this work, a non-isolated high step up DC-DC converter using coupled inductor and voltage multiplier cell is proposed. The proposed converter conversion ratio is efficiently extended by using a coupled inductor.
S. Pourjafar   +4 more
doaj  

A Novel Non-Isolated High-Gain Non-Inverting Interleaved DC–DC Converter

open access: yesMicromachines, 2023
High-gain DC–DC converters are being drastically utilized in renewable energy generation systems, such as photovoltaic (PV) and fuel cells (FC). Renewable energy sources (RES) persist with low-level output voltage; therefore, high-gain DC–DC converters ...
Farhan Mumtaz   +4 more
doaj   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Modified Two-Channel LLC Resonant Converter With Optimal Efficiency for Wide Input Voltage Applications

open access: yesIEEE Access, 2023
A modified two-channel LLC resonant converter with optimal efficiency for wide input voltage applications. The converter has the same voltage gain and power handing ability as conventional full-bridge (FB) resonant converter, but the hardware cost is ...
Linlin Pi
doaj   +1 more source

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