Results 11 to 20 of about 4,615,291 (338)

Optimization of Heat Transfer in an Enclosure with a Trombe Wall and Solar Chimney [PDF]

open access: yesRenewable Energy Research and Applications, 2022
Trombe walls and solar chimneys have been widely used by the construction industry for many years to heat buildings. In this study, the heat conductance of a Trombe wall was simulated and studied.
A.R. Shateri   +2 more
doaj   +1 more source

GROUPES FINS [PDF]

open access: yesThe Journal of Symbolic Logic, 2014
AbstractWe investigate some common points between stable structures and weakly small structures and define a structureMto befineif the Cantor-Bendixson rank of the topological space${S_\varphi }\left( {dc{l^{eq}}\left( A \right)} \right)$is an ordinal for every finite subsetAofMand every formula$\varphi \left( {x,y} \right)$wherexis of arity 1.
openaire   +4 more sources

Analysis of stray current induced by cathodic protection on steel-framed masonry structures [PDF]

open access: yes, 2011
Cathodic protection (CP) has been successfully employed to protect steel-framed masonry buildings from corrosion related damage. When a CP system is installed to protect the structural members, other metallic items which are within the fabric of the ...
Lambert, P   +3 more
core   +1 more source

Thermodynamic and Environmental Assessment of Mounting Fin ‎at the Back Surface of Photovoltaic Panels [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
Nowadays, researches on different kinds of renewable energies including photovoltaic technology are developing rapidly. It is proved that the output power of a PV cell is reduced by increasing the temperature. In this paper, mounting aluminum fins at the
Amir Hossein Shiravi   +1 more
doaj   +1 more source

Influence of shear reinforcement corrosion on the performance of under-reinforced concrete beams [PDF]

open access: yes, 2010
The in-service performance of reinforced concrete beams can be severely affected through cor-rosion of the steel reinforcement when it becomes subjected to harsh corrosive environments containing chlo-rides and carbon dioxide.
Brown, E. H.   +3 more
core   +1 more source

La cuestión de la pobreza voluntaria según santo Tomás de Aquino. Aportes a la cuestión del consumo desmedido en las sociedades contemporáneas

open access: yesStudium: Filosofía y Teología, 2015
El surgimiento de las Órdenes Mendicantes en el siglo XIII generó una serie de controversias acerca del peculiar estilo de vida de sus miembros. Una de ellas fue la referente a la cuestión de la pobreza voluntaria.
Pablo Santiago Furlotti
doaj   +1 more source

Stochastic Levenberg–Marquardt Neural Network Implementation for Analyzing the Convective Heat Transfer in a Wavy Fin

open access: yesMathematics, 2023
The present research examines the steady, one-dimensional thermal distribution and heat transfer of a wavy fin. This heat transfer analysis considers convective effects as well as temperature-dependent thermal conductivity.
R. S. Varun Kumar   +4 more
doaj   +1 more source

Investigation of Flow and Heat Transfer Characteristics for Fins Compound with Cavities in Microchannels

open access: yesZhileng xuebao, 2023
In this study, based on fins of four conventional shapes that are applied in microchannels, four novel fins are proposed using compound fins with cavities.
Huang Binghuan   +3 more
doaj  

Increasing heat transfer rate in heat exchanger of underwater vehicle motor by increasing fluid flow turbulence

open access: yesنشریه مهندسی دریا, 2021
Due to limited space and energy, increasing the performance of the underwater marine vehicle motor is one of the most important parameters in the design process.
Ehsan Yari, Mohammad Reza Nateghi
doaj  

An experimental investigation on the airside performance of fin-and-tube heat exchangers having corrugated louver fins - Part II; wet surface

open access: yesJournal of Thermal Science and Technology, 2020
In this study, two kinds of corrugated louver fin-and-tube heat exchangers – one having one corrugation per row and the other having two corrugations per row – were tested under wet condition, and the results were compared with those of the standard ...
Nae-Hyun KIM
doaj   +1 more source

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