Results 31 to 40 of about 316,613 (266)

Non-isolated high step-up DC–DC converter adopting auxiliary capacitor and coupled inductor

open access: yesJournal of Modern Power Systems and Clean Energy, 2017
For grid-connected power system based on photovoltaic (PV) source and fuel cells, high step-up and high-efficiency DC–DC converters are needed, due to the bus voltage of the grid-connected inverter is much higher than the output voltage of PV and fuel ...
Gang WU, Xinbo RUAN, Zhihong YE
doaj   +1 more source

Tapped-inductor bi-directional Cuk converter with high step-up/down conversion ratio and its optimum design

open access: yesScientific Reports, 2022
A bidirectional DC–DC converter is required for an energy storage system. High efficiency and a high step-up and step-down conversion ratio are the development trends.
Hongxing Chen   +3 more
doaj   +1 more source

Hospitalization Through Families’ Eyes: Comparing Inpatient Care Quality for Children With Sickle Cell Disease and Cystic Fibrosis in Canada

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker   +11 more
wiley   +1 more source

Venous Thromboembolism in Pediatric Bone Sarcoma Patients: A 10‐Year, Single‐Institution Experience Encompassing the COVID‐19 Pandemic

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Osteosarcoma (OS) and Ewing sarcoma (EWS) are the most common primary bone cancers in children, but acute thrombosis is poorly characterized in this population. Our study evaluated the rates of venous thromboembolism (VTE) and associated risk factors in pediatric patients with bone sarcomas treated over a 10‐year period encompassing
Sarah Kappa   +8 more
wiley   +1 more source

ANALYSIS OF WIND TURBINE GROUNDING SYSTEMS IN TERMS OF TOUCH AND STEP VOLTAGES

open access: yesElectrica, 2019
Power generation from renewable resources is increasingly growing. The numbers of wind turbines and wind farms are increasing as well. Wind turbines and wind farms require grounding systems in order to protect the living creatures and turbine components ...
Çağrı KÖKSAL, Ömer GÜL
doaj   +2 more sources

Threshold Potential Simulation on Grounding System using CYMGround Substation Program

open access: yesJurnal Elkomika
Excessive fault current on a poor grounding system can cause several symptoms such as the appearance of touch and step voltage and affect the grounding resistance value.
AYU FITRIANI   +5 more
doaj   +1 more source

Time-division-multiplex control scheme for voltage multiplier rectifiers

open access: yesThe Journal of Engineering, 2017
A voltage multiplier rectifier with a novel time-division-multiplexing (TDM) control scheme for high step-up converters is proposed in this study. In the proposed TDM control scheme, two full-wave voltage doubler rectifiers can be combined to realise a ...
Bin-Han Liu, Jen-Hao Teng, Wei-Lun Tsai
doaj   +1 more source

A novel dual-leg DC-DC converter for wide range DC-AC conversion

open access: yesAutomatika, 2022
This paper proposes DC–AC Dual-leg dual-stage Conversion (DDC) and DC–AC Direct single-stage conversions (DSC). Conventional energy conversion system has only two-stage conversion, so it has some drawbacks such as huge power loss, less conversion range ...
K. Suresh, E. Parimalasundar
doaj   +1 more source

Serological Benefit of SARS‐CoV‐2 Vaccination Relative to Infection in Children With Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with acute lymphoblastic leukemia (ALL) are at risk of severe outcomes from SARS‐CoV‐2 (SCV2). In the post‐pandemic context, where most children have been infected with SCV2, there are limited data on whether vaccination remains beneficial in children with ALL.
Janna R. Shapiro   +11 more
wiley   +1 more source

High step-up interleaved boost converter utilising stacked half-bridge rectifier configuration

open access: yesThe Journal of Engineering, 2019
This paper proposes a solution to complement the insufficient voltage gain and voltage stress distribution of classical interleaved boost converter in high step-up application.
Musbahu Muhammad   +3 more
doaj   +1 more source

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