Results 51 to 60 of about 5,718,742 (190)

About the ultrametric Corona problem

open access: yesBulletin des Sciences Mathématiques, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Escassut, Alain   +2 more
openaire   +4 more sources

The Problem of Experimental Evaluation for Corona Resistance of VFD Cables

open access: yesMATEC Web of Conferences, 2017
This article describes an approach for evaluating experimental cable insulation resistance electro-thermal aging, typical for the drive frequency being adjusted.
Leonov Andrey P., Charkov Dmitry I.
doaj   +1 more source

Tantangan Program Tahfidzul Qur’an Berbasis Online di Masa Pandemi Covid 19

open access: yesJ-PAI: Jurnal Pendidikan Agama Islam, 2022
The world has been shocked by the outbreak of a virus called Corona or often referred to as Covid-19 (Corona Virus Diseases-19). This virus began to endemic for the first time in Wuhan City, the capital of China's Hubei Province and the transmission of ...
Fitriyatul Hanifiyah, Anis Rofi Hidayah
doaj   +1 more source

A new approach to the maser emission in the solar corona [PDF]

open access: yes, 2015
Aims. The electron plasma frequency ωpe and electron gyrofrequency Ωe are two parameters that allow us to describe the properties of a plasma and to constrain the physical phenomena at play, for instance, whether a maser instability develops.
Regnier, Stephane, S. Régnier
core   +1 more source

Analisis Pengaruh Akibat Korona terhadap Rugi-Rugi Daya Saluran Udara Tegangan Tinggi 150 kV

open access: yesJurnal Nasional Teknik Elektro, 2014
At high voltage overhead lines 150 kV, problem of corona represent a problem which have to be reckoned. Corona marked with incidence of light which is young violet chromatic around surface of conductor strand accompanied by ear fizz and smell ozone. This
Novi Kurniasih, Dewi Purnama Sari
doaj  

Brain-targeting delivery of MMB4 DMS using carrier-free nanomedicine CRT-MMB4@MDZ

open access: yesDrug Delivery, 2021
Brain-targeting delivery of 1,1′-methylenebis[4-[(hydroxyimino)methyl]-pyridinium] dimethanesulfonate (MMB4 DMS) is limited by its hydrophilic property and chemical instability. In order to solve this problem, herein, we develop a facile protocol through
Yimeng Du   +6 more
doaj   +1 more source

Analyzing the Effect of Dynamic Pressure Drop on Corona Discharges for Aircraft Applications

open access: yesAerospace, 2023
The combination of the low-pressure environment found in aircraft systems and the gradual electrification of aircraft increases the risk of electrical discharges occurrence.
Pau Bas-Calopa   +2 more
doaj   +1 more source

Cohomology and extension problems for semi q-coronae [PDF]

open access: yesMathematische Zeitschrift, 2007
We prove some extension theorems for analytic objects, in particular sections of a coherent sheaf, defined in semi q-coronae of a complex space. Semi q-coronae are domains whose boundary is the union of a Levi flat part, a q-pseudoconvex part and a q-pseudoconcave part. Such results are obtained mainly using cohomological techniques.
SARACCO, Alberto, TOMASSINI GIUSEPPE
openaire   +5 more sources

Effect of Corona Ring Design and Placement on the Distribution of Electric Fields on 500 kV Gantry Substation in Indonesia

open access: yesJAREE (Journal on Advanced Research in Electrical Engineering), 2018
High electric field intensity in string isolators can trigger corona which results in premature aging of the insulator. One solution to overcome this problem is by installing the corona ring, the corona ring will uniform the electric field distribution ...
Yusrizal Afif   +2 more
doaj  

Corona problem and flows

open access: yesJournal of Functional Analysis, 1991
Let \(X\) denote a compact Hausdorff space and \(\{T_ t\}_{t\in\mathbb{R}}\) denote a continuous flow on \(X\), i.e. a one-parameter group of homeomorphisms of \(X\), such that \(T_ tx\) is continuous as a function of \((x,t)\). Fix a quasi-invariant, positive bounded, regular Borel measure \(\mu\) on \(X\), i.e.
openaire   +2 more sources

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