Results 81 to 90 of about 227,632 (304)

Effects of Incomplete Ionization on Beta - Ga2O3 Power Devices: Unintentional Donor with Energy 110 meV

open access: yes, 2017
Understanding the origin of unintentional doping in Ga2O3 is key to increasing breakdown voltages of Ga2O3 based power devices. Therefore, transport and capacitance spectroscopy studies have been performed to better understand the origin of unintentional
Chabak, Kelson D.   +6 more
core   +2 more sources

Millimeter-Wave Diode-Grid Frequency Doubler [PDF]

open access: yes, 1988
Monolithic diode grid were fabricated on 2-cm^2 gallium-arsenide wafers in a proof-of-principle test of a quasi-optical varactor millimeter-wave frequency multiplier array concept.
Chen, Howard Z.   +5 more
core   +1 more source

Evidence of Iron Accumulation in Cerebral Adrenoleukodystrophy: A Potential Novel Disease Mechanism

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT In this first application of Quantitative Susceptibility Mapping Source Separation to cerebral adrenoleukodystrophy, we uncovered alterations in iron and myelin within lesions and normal appearing white matter. As validation, we demonstrate abnormal iron accumulation in those same compartments within primary brain tissue.
Christina L. Nemeth   +8 more
wiley   +1 more source

Electrical Discharge Triggered Breakdown Phenomena in Main Gap

open access: yesInternational Journal of Electrical Engineering and Applied Sciences, 2018
In high-voltage techniques, electrical discharges represent complex problem. The results of the research on the breakdown phenomena in high voltage electrical apparatus insulated by gas can be employed to obtain external and internal insulation design ...
abderrahmane settaouti
doaj  

Characteristics of electrical response and permeability law of coal mass under electric pulse

open access: yesEarth Energy Science
Improving the permeability of coal seam is the key factor to realize efficient and safe mining of coalbed gas. In order to study the effect of high-voltage pulse breakdown on coal permeability, the multi-field coupling high-voltage pulse crack coal ...
Xianfeng Liu   +5 more
doaj   +1 more source

A model based DC analysis of SiPM breakdown voltages

open access: yes, 2017
A new method to determine the breakdown voltage of SiPMs is presented. It is backed up by a DC model which describes the breakdown phenomenon by distinct avalanche turn-on ($V_{01}$) and turn off ($V_{10}$) voltages.
Hegyesi, Gyula   +3 more
core   +1 more source

Degradation and breakdown characteristics of thin MgO dielectric layers [PDF]

open access: yes, 2010
MgO has been suggested as a possible high-k dielectric for future complementary metal-oxide semiconductor processes. In this work, the time dependent dielectric breakdown (TDDB) characteristics of 20 nm MgO films are discussed.
Degraeve R.   +5 more
core   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

2 kV Al0.64Ga0.36N-channel high electron mobility transistors with passivation and field plates

open access: yesApplied Physics Express
High voltage (∼2 kV) Al _0.64 Ga _0.36 N-channel high electron mobility transistors were fabricated with an on-resistance of ∼75 Ω. mm (∼21 mΩ. cm ^2 ). Two field plates of variable dimensions were utilized to optimize the breakdown voltage.
Md Tahmidul Alam   +7 more
doaj   +1 more source

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu   +11 more
wiley   +1 more source

Home - About - Disclaimer - Privacy