Results 11 to 20 of about 9,491 (255)

Efficiency optimisation of an interleaved high step-up converter

open access: yesThe Journal of Engineering, 2019
This study presents the performance comparison of two scenarios to obtain high voltage gain. A high step-up converter (HSU) and a cascaded boost converter are chosen for this study.
Bilal Ahmad   +2 more
doaj   +1 more source

Chemistry and Pharmacokinetics of Gallium Maltolate, a Compound With High Oral Gallium Bioavailability [PDF]

open access: yesMetal-Based Drugs, 1999
Gallium maltolate, tris(3‐hydroxy‐2‐methyl‐4H‐pyran‐4‐onato)gallium (GaM), is an orally active gallium compound for therapeutic use. It is moderately soluble in water (10.7 ± 0.9 mg/mL at 25 ∘C) with an octanol partition coefficient of 0.41±0.08. The molecule is electrically neutral in aqueous solution at neutral pH; a dilute aqueous solution (2.5 ×10 ...
Bernstein, Lawrence R.   +3 more
openaire   +2 more sources

X-parameter modelling of GaN HEMT based on neural network

open access: yesThe Journal of Engineering, 2019
Currently, S-parameters are commonly used in the design, measurement, and modelling of microwave circuits, but it is only suitable for linear small-signal conditions and not suitable for large-signal conditions.
Niu Lei, Feiyan Jiang, Lu Sun
doaj   +1 more source

Gallium-Containing Anticancer Compounds [PDF]

open access: yesFuture Medicinal Chemistry, 2012
There is an ever pressing need to develop new drugs for the treatment of cancer. Gallium nitrate, a group IIIa metal salt, inhibits the proliferation of tumor cells in vitro and in vivo and has shown activity against non-Hodgkin's lymphoma and bladder cancer in clinical trials.
openaire   +2 more sources

Upping the internal quantum efficiency of green light‐emitting diodes by employing a graded AlGaN barrier and an electron blocking layer

open access: yesIET Optoelectronics, 2021
Two different device structures are numerically studied, and their optoelectronic characteristics with standard structure are compared. The authors minimized the uneven carrier distribution across the active region. By replacing the first quantum barrier
Muhammad Usman   +3 more
doaj   +1 more source

Gallium compounds in nuclear medicine and oncology

open access: yesMain Group Metal Chemistry, 2014
An overview of the most important gallium compounds in nuclear medicine and oncology in the two last decades, with an emphasis on the last decade (especially the last 5 years), is given in this review.
Mikuš Peter   +4 more
doaj   +1 more source

900 V GaN-based sine-wave inverters for three-phase industrial applications

open access: yesThe Journal of Engineering, 2019
GaN devices are gradually getting attention within the industry along with SiC as a potential wide bandgap device. At present, there are almost no high-voltage GaN devices with voltage >650 V, which makes an inverter design difficult for a three-phase ...
Nilanjan Mukherjee   +3 more
doaj   +1 more source

Parallel connected GaN E‐HEMT VSI‐based servo drives for PMSMs

open access: yesIET Electric Power Applications, 2022
The operation of parallel‐connected servo drives has the advantages of increasing the torque (hence the power) capacity, reliability, redundancy and modularity.
Huseyin Yuruk, Ozan Keysan
doaj   +1 more source

Mechanochemical synthesis of intermetallic compounds in the system gallium – ruthenium

open access: yesChimica Techno Acta, 2021
The interaction of a solid inert metal Ru with liquid active metal Ga during mechanical activation in a high-energy planetary ball mill was studied using the X-ray diffraction and the high resolution scanning electron microscopy with energy dispersive X ...
T. F. Grigoreva   +3 more
doaj   +1 more source

Linear broadband interference suppression circuit based on GaN monolithic microwave integrated circuits

open access: yesIET Circuits, Devices and Systems, 2023
This paper presents simulation and measurement results of a 2–4 GHz octave bandwidth interference suppression circuit. The circuit accomplishes the function of a tunable frequency notch through an interferometer architecture.
Megan C. Robinson   +2 more
doaj   +1 more source

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