Results 51 to 60 of about 50,432 (316)

Characterization and optimization of active negative voltage driving circuit for CoolGaN HEMTs in a phase-leg configuration

Energy Reports, 2022
The high switching speed of GaN HEMT will cause serious crosstalk in the phase-leg configuration. The negative turn-off driving voltage is usually recommended to avoid the parasitic shoot-through.
Haihong Qin, Wenlu Wang, Sixuan Xie, Xiang Han, Zhenxiang Xu, Lingyan Wang   +5 more
doaj   +1 more source

Bridgeless boost rectifier with low conduction losses and reduced diode reverse-recovery problems [PDF]

, 2019
A bridgeless boost rectifier with low conduction losses and reduced diode reverse-recovery problems is proposed for power-factor correction. The proposed boost rectifier can reduce the conduction losses and alleviate the diode reverse-recovery problems ...
Kim, EH, Lee, JJ, Kwon, JM, Choi, WY, Kwon, BH   +4 more
core   +1 more source

Electrical Transport Characteristics of Vertical GaN Schottky-Barrier Diode in Reverse Bias and Its Numerical Simulation

Energies, 2023
We investigated the temperature-dependent reverse characteristics (JR-VR-T) of vertical GaN Schottky-barrier diodes with and without a fluorine-implanted edge termination (ET).
Vishwajeet Maurya, Julien Buckley, Daniel Alquier, Mohamed-Reda Irekti, Helge Haas, Matthew Charles, Marie-Anne Jaud, Veronique Sousa   +7 more
doaj   +1 more source

REVERSE TIME TLM MODELING OF THERMAL PROBLEMS DESCRIBED BY THE HYPERBOLIC HEAT CONDUCTION EQUATION [PDF]

, 2003
A method for reverse-time transmission line matrix (TLM) modeling of thermal diffusion problems described by the hyperbolic heat conduction equation is presented. The method involves pulse scattering governed by the inverse of the usual scattering matrix.
Pulko, SH, Wilkinson, AJ, Koay, AL
core   +1 more source

A high step‐up DC‐DC converter based on three‐winding coupled inductor and voltage multiplier for renewable energy applications

IET Power Electronics, 2023
A high step‐up DC‐DC converter for renewable energy applications is proposed. Based on a three‐winding coupled inductor and two voltage multiplier cells, the proposed converter obtains a high voltage conversion ratio.
Peng Luo, Jie He, Huansheng Ji, Fuwei Li, Haoyu Jiang, Limei Shi, Guanghao Chen   +6 more
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source

Reversible conduction failure in acute inflammatory demyelinating polyneuropathy

Scientific Reports, 2022
Abstract Reversible conduction failure (RCF) has been documented in acute motor axonal neuropathy (AMAN) and is considered a sign of nodopathy. Several reports of RCF in acute inflammatory demyelinating polyneuropathy (AIDP) have suggested that it could be a manifestation of nodopathy.
Sooyoung Kim, Eun Kyoung Lee, Eunhee Sohn   +2 more
openaire   +3 more sources

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Rasheed A. Balogun   +4 more
wiley   +1 more source

Modified Modulation Signals for GaN-E-HEMTs based HERIC Inverter to Improve Reverse Conduction Performance [PDF]

, 2018
This paper presents an application of modified PWM signals to enhance the efficiency of GaN HEMTs based HERIC inverter. Although application of GaN switches might increases the power density and overall efficiency of inverters due to the structure of GaN
Martinez, Wilmar, Kyyrä, Jorma, Ahmad, Bilal   +2 more
core   +4 more sources

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono, Yoshifumi Moriyama, Koji Ohashi, Naoya Otaka, Minako Tatsumi, Toyoaki Murohara, Noriyuki Ouchi, Satoru Oshima   +7 more
wiley   +1 more source