Results 61 to 70 of about 5,589,585 (294)

Distribuição de pressão e condutância térmica em contatos de superfícies em junções aparafusadas [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.Este trabalho analisa teoricamente e experimentalmente (utilizando-se de dados experimentais obtidos da literatura), a ...
Pereira, Eliete Nascimento
core  

Study on Thermal Contact Resistance Estimation in Planar Medium [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
Thermal contact resistance(TCR) is one of the important parameters in heat transfer problems of engineering, and it is necessary to estimate the value of TCR effectively in many engineering fields. Considering the limitation of current estimation methods

doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +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

Thermal characteristic analysis of Z-axis guideway based on thermal contact resistance

open access: yesAdvances in Mechanical Engineering, 2018
The Z-axis feeding system of large computer numerical control (CNC) gear grinding machine tools generates lots of heat during processing, which leads to tilt and pitch deformation of the Z-axis guideway and reduces the machining accuracy. In view of this
Jiandu Ji   +3 more
doaj   +1 more source

CALCULATION OF CONTACT THERMAL RESISTANCE

open access: yesModern Technologies and Scientific and Technological Progress
An approach to determining the contact thermal resistance of two-layer materials and the results of comparing the analytical determination of thermal resistance with experimental data are considered. The necessity of taking into account the contact thermal resistance in the design of heat exchangers is ...
Sergey Scherbin, Viktor Kolesnichenko
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Effects of contact resistance on thermal-conductivity of composite media with a periodic structure

open access: yes, 1992
The thermal conductivity of periodic composite media with spherical or cylindrical inclusions embedded in a homogeneous matrix is discussed. Using Green functions, we show that the Rayleigh identity can be generalized to deal with thermal properties ot ...
Gu GQ   +2 more
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Analysis of Thermal Performance in a Bidirectional Thermocycler by Including Thermal Contact Characteristics

open access: yesMicromachines, 2014
This paper illustrates an application of a technique for predicting the thermal characteristics of a bidirectional thermocycling device for polymerase chain reaction (PCR).
Jyh Jian Chen   +3 more
doaj   +1 more source

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