Results 21 to 30 of about 865,228 (194)

Thermal analysis of mid-infrared quantum-cascade lasers [PDF]

open access: yes, 2008
We present a theoretical thermal analysis of mid-infrared quantum-cascade lasers (QCLs) using a two-dimensional anisotropic heat diffusion model. Several InP-based devices are simulated over a range of operating conditions in order to extract temperature-
Evans, C.A.   +3 more
core   +1 more source

Immune boosting functional components of natural foods and its health benefits

open access: yesFood Production, Processing and Nutrition, 2023
Naturally available foods contain nutrients like vitamins (A, C, E, and D), zinc, calcium, magnesium, folate iron, omega fatty acids, selenium, and phytochemicals that have profound protective effects (boosting immunity) on human from diseases.
Jaspin Stephen   +2 more
doaj   +1 more source

Tuning the thermal conductivity of graphene nanoribbons by edge passivation and isotope engineering: a molecular dynamics study [PDF]

open access: yes, 2010
Using classical molecular dynamics simulation, we have studied the effect of edge-passivation by hydrogen (H-passivation) and isotope mixture (with random or supperlattice distributions) on the thermal conductivity of rectangular graphene nanoribbons ...
Ajit Vallabhaneni   +5 more
core   +3 more sources

Hierarchical macro-nanoporous metals for leakage-free high-thermal conductivity shape-stabilized phase change materials

open access: yes, 2020
Impregnation of Phase Change Materials (PCMs) into a porous medium is a promising way to stabilize their shape and improve thermal conductivity which are essential for thermal energy storage and thermal management of small-size applications, such as ...
Dauvergne, Jean-Luc   +8 more
core   +1 more source

Integrated electroplated heat spreaders for high power semiconductor lasers [PDF]

open access: yes, 2008
Thermal management of high power semiconductor lasers is challenging due to the low thermal conductivity of the laser substrate and the active device layers. In this work, we demonstrate the use of a microfabricated laser test device to study the thermal
Chen, Gang   +4 more
core   +1 more source

Effects of Pyran-Ring Structure in Carbon Sources on the Electrochemical Performance of LiFePO4/C

open access: yesInternational Journal of Electrochemical Science, 2013
Nano-sized LiFePO4/C (LFP/C) with excellent electrochemical performance was prepared by using carbon precursors with different pyran-ring structures as carbon sources.
Baohua Li   +9 more
doaj   +1 more source

The Performance of a Thermal Protection System for the Accessories of a TBCC Engine

open access: yesEnergies, 2023
A theoretical model for describing the heat transfer characteristics of a turbine-based combined cycle (TBCC) engine cabin was established in Matlab/Simulink to quickly predict the thermal protection performance for engine accessories.
Wenlei Lian, Jinhua Zhang, Dengke Lin
doaj   +1 more source

Study of a Square Single-Phase Natural Circulation Loop Using the Lattice Boltzmann Method

open access: yesApplied Mechanics, 2023
Natural circulation loops are thermohydraulic circuits used to transport heat from a source to a sink in the absence of a pump, using the forces induced by the thermal expansion of a working fluid to circulate it.
Johan Augusto Bocanegra   +2 more
doaj   +1 more source

Thermal management in microfluidics using micro-Peltier junctions [PDF]

open access: yes, 2005
We report refrigeration and heating of nanoliter fluid volumes with micro-Peltier junctions. The temperature of small liquid reservoirs can be rapidly changed and controlled within a range between -3 degrees C to over 120 degrees C with good long-term ...
Johnston, Matthew   +2 more
core   +1 more source

Identification and characterization of the dominant thermal resistance in lithium-ion batteries using operando 3-omega sensors [PDF]

open access: yes, 2020
Poor thermal transport within lithium-ion batteries fundamentally limits their performance, safety, and lifetime, in spite of external thermal management systems.
Battaglia, V   +4 more
core  

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