Results 41 to 50 of about 5,801,750 (300)

THE INPUT POWER FACTOR PROBLEM FOR INDUSTRIAL DRIVES

Academy Journal of Science and Engineering, 2022
This paper presents the a.c. input power factor problem of an Industrial drive connected to a DC motor load and operated either in the continuous or discontinuous inductor current mode.
Osunde O.D, Makanjuola N.T
doaj  

Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer

Energies, 2015
In this study, to achieve the constant current drive and brightness control without a separate pulse width modulation (PWM) converter, a single converter is designed and verified by experiment under the condition of a multiple LED light load with ...
Jae-Hyun Han, Young-Cheol Lim
doaj   +1 more source

Thermoelectric transport in strained Si and Si/Ge heterostructures

, 2012
The anisotropic thermoelectric transport properties of bulk silicon strained in [111]-direction were studied by detailed first-principles calculations focussing on a possible enhancement of the power factor.
Bass J M, Brunner K, Giannozzi P, Hinsche N, I Mertig, Ioffe A F, Mertig I, Mertig I, N F Hinsche, Nolas G S, P Zahn, Slack G A, Tahini H, Zahn P   +13 more
core   +1 more source

Digital Current-Control Schemes [PDF]

, 2009
The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Bojoi, Iustin Radu, Griva, Giovanni Battista, Limongi, Leonardo, Tenconi, Alberto   +3 more
core   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source

On-Grid PV Performance in Various Irradiation Conditions, Types, and Load Power

Protek: Jurnal Ilmiah Teknik Elektro, 2023
There are several types of photovoltaic system configurations, one of which is the on-grid PV system. This system is simple compared to other systems. Because there are two different energy sources that can supply the load either together or separately ...
Alamsyah Achmad, Usman Usman, Ahmad Rizal Sultan, Ahmad Rosyid Idris, Andarini Asri, Fahmi Ryadin   +5 more
doaj   +1 more source

Power factor control system for ac induction motors [PDF]

, 1981
A power control circuit for an induction motor is disclosed in which a servo loop is used to control power input by controlling the power factor of motor operation.
Nola, F. J.
core   +1 more source

Structural fingerprints of transcription factor binding site regions [PDF]

, 2009
Fourier transforms are a powerful tool in the prediction of DNA sequence properties, such as the presence/absence of codons. We have previously compiled a database of the structural properties of all 32,896 unique DNA octamers.
Christopher Hunter, Collins, Eleanor J. Gardiner, Fickett, Kampa, Packer, Peter Willett, Tiwari, Waterston   +8 more
core   +2 more sources

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash, Anis Rabbani Nourani, A. K. M. Fazlur Rahman, Dima Ezmigna, Tarig Ali‐Dinar   +4 more
wiley   +1 more source

Optimal location of static var compensator device for damping oscillations [PDF]

, 2009
Problem statement: Static Var Compensators (SVC) devices are used to improve voltage and reactive power conditions in AC systems. An additional task of SVC is to increase transmission capacity as result of power oscillation damping.
Magaji, Nuraddeen, Mustafa, Mohd. Wazir
core   +2 more sources