Results 11 to 20 of about 4,153,083 (157)

ASYMMETRIC SLOT LINES FOR CREATING MILLIMETER-WAVE SEMICONDUCTOR COMPONENTS [PDF]

open access: yesRadio Physics and Radio Astronomy
Subject and Purpose. Creating hybrid-integrated semiconductor components in the millimeter wave range implies simplified manufacturing technology and reduced labor intensity.
M. F. Karushkin, V. P. Rukyn
doaj   +1 more source

Effects of Die-Attach Quality on the Mechanical and Thermal Properties of High-Power Light-Emitting Diodes Packaging

open access: yesAdvances in Materials Science and Engineering, 2017
The reliability of high-power light-emitting-diode (LED) devices strongly depends on the die-attach quality because voids may increase junction temperature and total thermal resistance of LED devices.
Piaopiao He   +3 more
doaj   +1 more source

Impact of Heating Rates on Alicyclobacillus acidoterrestris Heat Resistance under Non-Isothermal Treatments and Use of Mathematical Modelling to Optimize Orange Juice Processing

open access: yesFoods, 2021
Alicyclobacillus acidoterrestris is a spoilage microorganism responsible for relevant product and economic losses in the beverage and juice industry. Spores of this microorganism can survive industrial heat treatments and cause spoilage during posterior ...
Juan-Pablo Huertas   +7 more
doaj   +1 more source

Transient thermal performance of constant fill ratio vapor chamber with different coolants

open access: yesJournal of Thermal Science and Technology, 2021
In this study, a constant fill ratio vapor chamber using water and ferrofluid as the coolants on the thermal performance and thermal optimization to provide the cooling range are presented.
Songkran WIRIYASART, Paisarn NAPHON
doaj   +1 more source

The thermal behaviour of three different auger pressure grouted piles used as heat exchangers [PDF]

open access: yes, 2014
Three auger pressure grouted (APG) test piles were constructed at a site in Richmond, Texas. The piles were each equipped with two U-loops of heat transfer pipes so that they could function as pile heat exchangers.
Brettmann, T   +11 more
core   +1 more source

Technique and setup for diagnostics of p-n junction–package thermal resistance in high-power gallium nitride LEDs [PDF]

open access: yes, 2012
We present a setup and procedure of studying p-n junction–package thermal resistance in high-power light-emitting diodes (LEDs) from their thermal relaxation. A set of LEDs mounted on a metal-core printed circuit board (MCPCB) were studied.
Kudryk Y. Y.   +3 more
core   +1 more source

EFFECT OF THE THICKNESS OF INSULATION OF PROTECTED WIRES OF HIGH-VOLTAGE OVERHEAD TRANSMISSION LINES TO THEIR CURRENT CARRYING CAPACITY

open access: yesElectrical engineering & Electromechanics, 2018
Introduction. The main direction of technical policy in the design, construction and technical re-equipment of transmission lines is the modernization of electrical networks and increase their energy efficiency in order to increase the throughput and ...
G. V. Bezprozvannych   +2 more
doaj   +1 more source

A Novel Treatment for Determining Thermal Conductivity of the Soil Substrates for Selecting Sustainable Growing Mediums in Terms of Thermal Resistance

open access: yes, 2022
The thermal conductivity of the soil is important to determine the horticultural performance of growing medium. Microclimatic features influence the viability of soil mixtures for vegetation.
Jaufer, L, Kader, S
core   +1 more source

Influence of a Thermal Pad on Selected Parameters of Power LEDs

open access: yesEnergies, 2020
This paper is devoted to the analysis of the influence of thermal pads on electric, optical, and thermal parameters of power LEDs. Measurements of parameters, such as thermal resistance, optical efficiency, and optical power, were performed for selected ...
Krzysztof Górecki   +3 more
doaj   +1 more source

Palladium Thiolate Bonding of Carbon Nanotube Thermal Interfaces [PDF]

open access: yes, 2011
Carbon nanotube (CNT) arrays can be effective thermal interface materials with high compliance and conductance over a wide temperature range. Here, we study CNT interface structures in which free CNT ends are bonded using Pd hexadecanethiolate, Pd(SC(16 ...
G. U. Kulkarni   +11 more
core   +1 more source

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