Results 131 to 140 of about 194,819 (312)

Boost converter with power factor correction [PDF]

open access: yes, 2012
The boost converter is a type of the switched mode power supply which normally to step up the voltage since the voltage output is large than the input voltage.
Kamarudin, Kamry
core  

Poison or catalyst? How do energy saving targets matter for firm-level productivity in China

open access: yesHumanities & Social Sciences Communications
China’s Top-10000 Enterprises Energy Conservation and Low Carbon Program, enacted in 2011, sets binding energy saving targets for enterprises. However, whether energy saving target setting is a poison or a catalyst remains controversial, and no research ...
Pan Zhang, Acheng Zhang, Zitao Chen
doaj   +1 more source

Design and control of high-power density converters with power factor correction using multilevel rectifiers

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy
High-power density converters are critical in modern electrical systems, particularly in applications requiring efficient power conversion and high performance, such as industrial drives, renewable energy systems, and electric vehicles.
Prakash A. Kharade   +3 more
doaj   +1 more source

High Health Care Utilization Preceding Diagnosis With Juvenile Idiopathic Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective Although early diagnosis improves long‐term outcomes, patients with juvenile idiopathic arthritis (JIA) often experience prolonged, circuitous paths to diagnosis. To inform diagnostic improvement, we sought to characterize health care utilization in the year preceding diagnosis. Methods We identified 10,021 patients with an incident diagnosis
Anna Costello   +5 more
wiley   +1 more source

Dynamics of the boost factor versus traditional citation variables.

open access: yes, 2013
Each panel displays the time histories of four variables: the boost factor , the average number of citations per paper , the cumulative number of citations ,
Santo Fortunato (222577)   +4 more
core   +1 more source

Boost PFC converter based on feedforward harmonic decoupling control

open access: yesDiance yu yibiao
The high penetration trend of power electronic equipment in local distribution network has led to the concentration, decentralization and wide area of harmonic sources, and the traditional point-to-point harmonic suppression is no longer applicable ...
ZHANG Rongfei   +3 more
doaj   +1 more source

Building a Framework for Sexual and Reproductive Health Care in the Rheumatology Context: Content and Approaches

open access: yesArthritis Care &Research, EarlyView.
People with systemic autoimmune and rheumatic diseases (SARDs) are at higher risk than the general population of experiencing adverse pregnancy and perinatal outcomes such as preeclampsia, intrauterine growth restriction, and maternal and/or fetal death.
Mehret Birru Talabi, Sonya Borrero
wiley   +1 more source

Design of Robust Dual Boost Converter Power Factor Correction Circuits

open access: yes, 2010
The traditional AC/DC rectifier usually has the defects of low power factor and serious harmonic distortion and it results in serious pollution to the power system.
Zai, Zong-ru
core  

Physician‐Scientist Pipeline for Pediatric Rheumatology: The Current Landscape and Future Perspectives

open access: yesArthritis Care &Research, EarlyView.
Over the past 50 years, the science of pediatric rheumatology has grown exponentially due to an expansion in the understanding of complex rheumatic conditions and a surge in novel targeted therapeutics. Physician‐scientists in the field of pediatric rheumatology have played major roles in these advancements that have improved the care of children ...
Ekemini A. Ogbu   +2 more
wiley   +1 more source

Study and design of a novel three-phase bridgeless boost power factor correction

open access: yes, 2014
A novel three-phase bridgeless boost power factor correction (PFC) circuit is studied and designed. First, the operating principle of the three-phase bridgeless boost PFC is analysed.
Chen, Y., Hu, E., Zhou, J., Dai, W.
core   +1 more source

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