Results 41 to 50 of about 753,602 (304)

DC-DC boost-flyback converter functioning as input stage for one phase low power grid-connected inverter

open access: yesArchives of Electrical Engineering, 2014
The paper treats about main problems of one phase DC-AC microinverters that allow single solar cell to be joined with the grid. One of the issues is to achieve high voltage gain with high efficiency in DC circuit, which is necessary for proper operation ...
Kawa Adam   +2 more
doaj   +1 more source

48-V Input DC-DC High Step-Down Converter in GaN-Based Design

open access: yesIEEE Access, 2022
This paper presents a novel high step-down DC-DC converter based on a switched-capacitor resonant topology. It is presented in a 48/8 V version, which was verified by simulations and experiments.
Szymon Folmer   +2 more
doaj   +1 more source

Towards Electronics-based Emergency Control in Power Grids with High Renewable Penetration

open access: yes, 2015
Traditional emergency control schemes in power systems usually accompany with power interruption yielding severely economic damages to customers. This paper sketches the ideas of a viable alternative for traditional remedial controls for power grids with
Chatzivasileiadis, Spyros   +2 more
core   +1 more source

iGSE-CD—An Electric-/Displacement-Field Related Steinmetz Model for Class II Multilayer Ceramic Capacitors Under Low-Frequency Large-Signal Excitation

open access: yesIEEE Open Journal of Power Electronics, 2023
Multilayer Ceramic Capacitors (MLCCs) are of paramount importance in electronics and ferroelectric Class II dielectrics enable outstanding energy-density values.
David Menzi   +6 more
doaj   +1 more source

Research and innovation in power electronics systems applied to energy management [PDF]

open access: yes, 2008
The Power Electronics Systems Group (GSEP) at University Carlos III de Madrid (Spain) offers its wide experience and background in consultancy, R&D projects with private and public funding and pre-industrial prototype building in four main topics: energy
Barrado Bautista, Andrés
core   +1 more source

A PRSZT Registry Analysis of Prognostic Factors Influencing Survival and Relapse Rates After Second Allogeneic Hematopoietic Stem Cell Transplantation in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A second allogeneic (allo‐)hematopoietic stem cell transplantation (HSCT2) is a potential curative option for pediatric patients with acute lymphoblastic leukemia (ALL) following relapse after first allogeneic transplantation (HSCT1), but its efficacy is limited by high relapse rates and transplant‐related toxicity in highly pretreated ...
Ava Momm   +10 more
wiley   +1 more source

Designing a Passively Damped Quasi-Two-Level-Operated Modular Multilevel Converter for Drive Applications

open access: yesIEEE Access, 2020
This paper concentrates on the simplest quasi-two-level PWM operation mode for modular multilevel converters, where the internal currents within the converter are not controlled.
Jakub Kucka, Axel Mertens
doaj   +1 more source

Practical Modal Analysis of a Prototyped Hydrogenerator

open access: yesVibration, 2021
The vibration on the stator core of hydrogenerators caused by electromagnetic forces is an important factor affecting the reliability and long-lasting operation of a machine.
Allan de Barros   +3 more
doaj   +1 more source

Evaluation and testing of advanced low-voltage power supplies [PDF]

open access: yes, 2007
A distinguishing feature of the LHC detectors is the enormous number of front end electronics channels in all the sub-detectors. Low voltage power supply systems in the range of multi kilowatts are required to bias such electronics.
Allongue, Bruno
core   +1 more source

Outcomes and Surgical Management of Malignant Rhabdoid Tumor of the Kidney: A Report From the Pediatric Surgical Oncology Research Collaborative

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Malignant rhabdoid tumor of the kidney (MRTK) is a rare, aggressive tumor seen in young children. The optimal timing of resection for locally advanced tumors is not well‐defined. The purpose of this study is to evaluate modern oncologic outcomes and the impact of surgical timing. Methods A multicenter retrospective review was performed
Hannah N. Rinehardt   +76 more
wiley   +1 more source

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