Results 1 to 10 of about 4,477,086 (129)

A Unidirectional DC-DC Autotransformer for DC Grid Application [PDF]

Energies, 2018
Conventional unidirectional DC-DC converters for DC grid application employ DC-AC-DC two-stage conversion technology and suffer from high converter cost and power loss. To solve these issues, a unidirectional step-up DC-DC autotransformer (UUDAT) and a unidirectional step-down DC-DC autotransformer (DUDAT) are studied.
Zhou, Meng, Xiang, Wang, Zuo, Wenping, Lin, Weixing, Wen, Jinyu   +4 more
openaire   +4 more sources

VLSI hybrid DC-DC regulator [PDF]

2015 European Conference on Circuit Theory and Design (ECCTD), 2015
Hybrid DC-DC regulators are structures that combine both a linear voltage regulator and a switching DC-DC converter. The main objective of this hybrid topology is to converge, in a single circuit topology, the best of both alternatives: a small voltage output ripple, which is a common characteristic of linear regulator circuits, and good energy ...
Cosp Vilella, Jordi, Martínez García, Herminio   +1 more
openaire   +2 more sources

IRX-2, a Novel Immunotherapeutic, Enhances Functions of Human Dendritic Cells [PDF]

, 2013
Background: In a recent phase II clinical trial for HNSCC patients, IRX-2, a cell-derived biologic, promoted T-cell infiltration into the tumor and prolonged overall survival. Mechanisms responsible for these IRX-2-mediated effects are unknown.
A Lopez-Albaitero, A Pinzon-Charry, AD Rapidis, B Almand, B Schilling, Bastian Schilling, C Reis e Sousa, C Sadhu, C Visus, D Agnello, Derya Unutmaz, DI Gabrilovich, DS Heo, DY Ma, E Procko, GG Kim, GT Wolf, H Jonuleit, H Jonuleit, H Okada, IK Poon, J Banchereau, James Egan, JE Egan, JM Kirkwood, L Frasca, LH Butterfield, M Ahmadi, M Temponi, Malgorzata Harasymczuk, MC Dieu, MR Young, N Bandoh, NL Berinstein, P Chaux, P Kalinski, P Langlade-Demoyen, Patrick Schuler, R Muthuswamy, S Amigorena, Soldano Ferrone, T Ogino, Theresa L. Whiteside, TK Hoffmann, TK Hoffmann, TL Whiteside, TL Whiteside, X Wang   +47 more
core   +12 more sources

An Efficiency-Focused Design of Direct-DC Loads in Buildings [PDF]

, 2019
Despite the recent interest in direct current (DC) power distribution in buildings, the market for DC-ready loads remains small. The existing DC loads in various products or research test beds are not always designed to efficiently leverage the benefits ...
Brown, Richard, Gerber, Daniel, Liou, Richard   +2 more
core   +3 more sources

Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]

, 2018
Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems.
Adam, G.P., Ahmed, Shehab, Gowaid, I.A., Massoud, Ahmed M., Williams, B.M.   +4 more
core   +1 more source

AC vs. DC Boost Converters: A Detailed Conduction Loss Comparison [PDF]

, 2019
Studies have shown the efficiency benefits of DC dis- tribution systems are largely due to the superior performance of DC/DC converters. Nonetheless, these studies are often based on product data that differs widely in manufacturer and operating voltage.
Gerber, Daniel, Musavi, Fariborz
core   +3 more sources

Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]

, 2018
Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A., Aboushady, Ahmed A., Adam, Grain P., Ahmed, Khaled Hani   +3 more
core   +2 more sources

AC-DC & DC-DC Converters for DC Motor Drives

WSEAS TRANSACTIONS ON ELECTRONICS, 2021
This paper deals with a comprehensive survey on the topic of AC/DC & DC/DC converters for DC Motor Drives. A substantial number of different AC/DC and DC/DC topologies appropriate for DC motor drives are presented. This critical literature review brings out merits, demerits, and limitations besides giving the basic operating principles of various ...
G. Ch. Ioannidis, C. S. Psomopoulos, S. D. Kaminaris, P. Pachos, H. Villiotis, S. Tsiolis, P. Malatestas, G. A. Vokas, S. N. Manias   +8 more
openaire   +1 more source

Direct Current Auditory Evoked Potentials During Wakefulness, Anesthesia, and Emergence from Anesthesia [PDF]

, 2001
Direct current auditory evoked potentials (DC-AEPs) are a sensitive indicator of depth of anesthesia in ani-mals. However, they have never been investigated in humans. To assess the potential usefulness of DC-AEPs as an indicator of anesthesia in humans,
Bauer, Herbert, Fitzgerald, Robert, Lamm, Claus, Oczenski, Wolfgang, Stimpfl, Thomas, Vycudilik, Walter   +5 more
core   +1 more source

The B subunit of Escherichia coli heat-labile toxin alters the development and antigen-presenting capacity of dendritic cells [PDF]

, 2015
Escherichia coli’s heat-labile enterotoxin (Etx) and its non-toxic B subunit (EtxB) have been characterized as adjuvants capable of enhancing T cell responses to co-administered antigen.
Griffiths, Kristin L., Hirst, Timothy R., Ji, Jing, Milburn, Peter J., O'Neill, Helen C.   +4 more
core   +1 more source