Results 21 to 30 of about 4,505,193 (146)

Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials: Microstructure and Saturation Effect

Advances in Civil Engineering, 2012
The thermal conductivity measurement by a simplified transient hot-wire technique is applied to geomaterials in order to show the relationships which can exist between effective thermal conductivity, texture, and moisture of the materials.
B. Merckx, P. Dudoignon, J. P. Garnier, D. Marchand   +3 more
doaj   +1 more source

Experimental Study on the Three-Dimensional Unsteady Flow Characteristics of the Counter-Rotating Axial Flow Fan

Journal of Fluid Science and Technology, 2009
The counter-rotating axial flow fan shows that the complex flow characteristics with three-dimensional, viscous, and unsteady flow fields. For the understanding of the entire core flow in counter-rotating axial flow fan, it is necessary to investigate ...
Lee-Sang CHO, Bong-Jun CHA, Jin-Soo CHO
doaj   +1 more source

Single-crystal diamond growth by hot-filament CVD: a recent advances for doping, growth rate and defect controls

Functional Diamond, 2023
Diamond single crystals have garnered significant attention due to their wide-ranging applications, encompassing not only semiconducting films but also potential quantum sensing materials.
Shinya Ohmagari
doaj   +1 more source

Visualization of synthetic jets at higher Stokes numbers

EPJ Web of Conferences, 2012
Visualization of synthetic jets at higher Stokes numbers (S = 90 and 127) by the phase-locked smoke-wire technique is presented and discussed. The working fluid is air. The Reynolds numbers are quantified using hot-wire anemometry. Although our method of
Trávníček Zdeněk, Broučková Zuzana, Šafařík Pavel   +2 more
doaj   +1 more source

Métodos transientes de troca de calor na determinação das propriedades térmicas de materiais cerâmicos: II - o método do fio quente Thermal properties of ceramic materials by the non-steady techniques: II - the hot wire technique

Cerâmica, 2005
A condutividade térmica, a difusividade térmica e o calor específico, conhecidos como propriedades térmicas são as três propriedades físicas de um material mais importantes do ponto de vista de cálculos térmicos.
W. N. dos Santos
doaj   +1 more source

Hot-thermistor spirometry for the artificial ventilation of infants [PDF]

, 1982
Bibliography: leaves 230-245.This thesis describes equipment and techniques which were developed for use in monitoring mechanical aspects of artificial ventilation and optimising ventilation procedures.
Hughes, Timothy John
core   +1 more source

USING HOT WIRE TECHNIQUE FOR MEASURING THERMAL CONDUCTIVITY OF INFUSIONS OF ORGANIC AND CONVENTIONAL COFFEE

Revista de la Facultad de Ciencias, 2016
The technique of hot wire, a versatile method of low cost and high accuracy for measuring the thermal conductivity of fluids through the increasing temperature of a wire that is immersed into the liquid and between its ends a potential difference is ...
Fernando Gordillo-Delgado, Diego F. Valencia-Grisales, Jesús Plazas-Saldaña   +2 more
doaj   +1 more source

Selection of Welding Conditions for Achieving Both a High Efficiency and Low Heat Input for Hot-Wire Gas Metal Arc Welding

Journal of Manufacturing and Materials Processing
This study presents a new gas metal arc welding (GMAW) technique that achieves both high efficiency and low heat input using a hybridization of the hot-wire method.
Keita Marumoto, Akira Fujinaga, Takeshi Takahashi, Hikaru Yamamoto, Motomichi Yamamoto   +4 more
doaj   +1 more source

Método de fio quente na determinação das propriedades térmicas de polímeros Hot wire technique in the determination of thermal properties of polymers

Polímeros, 2004
A técnica de fio quente paralelo normalizada para a determinação da condutividade térmica de materiais cerâmicos foi empregada na determinação das propriedades térmicas de polímeros.
Wilson N. dos Santos, Rinaldo Gregorio Filho, Paul Mummery, Andrew Wallwork   +3 more
doaj   +1 more source

Aplicação da técnica de fio quente na determinação das propriedades térmicas de polímeros fundidos Hot wire technique in the determination of thermal properties of melt polymers

Polímeros, 2005
A natureza da estrutura molecular dos plásticos torna as propriedades desses materiais fortemente dependentes da temperatura. A condutividade térmica, difusividade térmica e o calor específico, conhecidos como propriedades térmicas, são as três ...
Wilson N. dos Santos
doaj   +1 more source