Heat Transfer Mechanisms for Condensation and Vaporization Inside a Microfin Tube

2002 ◽  
Vol 9 (1) ◽  
pp. 25-37 ◽  
Author(s):  
Davide Del Col ◽  
Ralph L. Webb ◽  
Ram Narayanamurthy
Keyword(s):  
Heat Transfer ◽  
Transfer Mechanisms

scholarly journals Policy adoption of learner-centred pedagogy in Rwanda: A case study of its rationale and transfer mechanisms

2019 ◽  
Vol 67 ◽  
pp. 64-72 ◽  
Author(s):  
Hester S. van de Kuilen ◽  
Hulya Kosar Altinyelken ◽  
Joke M. Voogt ◽  
Wenceslas Nzabalirwa
Keyword(s):  
Policy Adoption ◽  
Transfer Mechanisms

scholarly journals Ultrafast Electron/Energy Transfer and Intersystem Crossing Mechanisms in BODIPY-Porphyrin Compounds

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 312
Author(s):  
Yusuf Tutel ◽  
Gökhan Sevinç ◽  
Betül Küçüköz ◽  
Elif Akhuseyin Yildiz ◽  
Ahmet Karatay ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Fluorescence Spectra ◽  
Visible Region ◽  
Energy Transfer Mechanism ◽  
Free Base ◽  
Pump Probe ◽  
Harvesting Efficiency ◽  
Probe Spectroscopy ◽  
Absorption Features ◽  
Transfer Mechanisms

Meso-substituted borondipyrromethene (BODIPY)-porphyrin compounds that include free base porphyrin with two different numbers of BODIPY groups (BDP-TTP and 3BDP-TTP) were designed and synthesized to analyze intramolecular energy transfer mechanisms of meso-substituted BODIPY-porphyrin dyads and the effect of the different numbers of BODIPY groups connected to free-base porphyrin on the energy transfer mechanism. Absorption spectra of BODIPY-porphyrin conjugates showed wide absorption features in the visible region, and that is highly valuable to increase light-harvesting efficiency. Fluorescence spectra of the studied compounds proved that BODIPY emission intensity decreased upon the photoexcitation of the BODIPY core, due to the energy transfer from BODIPY unit to porphyrin. In addition, ultrafast pump-probe spectroscopy measurements indicated that the energy transfer of the 3BDP-TTP compound (about 3 ps) is faster than the BDP-TTP compound (about 22 ps). Since the BODIPY core directly binds to the porphyrin unit, rapid energy transfer was seen for both compounds. Thus, the energy transfer rate increased with an increasing number of BODIPY moiety connected to free-base porphyrin.

scholarly journals Energy transfer mechanisms and resolvent analysis in the cylinder wake

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Bo Jin ◽  
Sean Symon ◽  
Simon J. Illingworth
Keyword(s):  
Energy Transfer ◽  
Cylinder Wake ◽  
Transfer Mechanisms

Numerical investigation for the heat transfer mechanisms between subchannels of bar rod bundles cooled by liquid sodium

2021 ◽  
Vol 161 ◽  
pp. 108460
Author(s):  
X.A. Wang ◽  
Dalin Zhang ◽  
Mingjun Wang ◽  
Yandong Hou ◽  
Wenxi Tian ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Investigation ◽  
Liquid Sodium ◽  
Rod Bundles ◽  
Transfer Mechanisms

scholarly journals Combined Heat Transfer Mechanisms in the Porous Char Layer Formed from the Intumescent Coatings under Fire

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 200
Author(s):  
Lingyun Zhang ◽  
Yupeng Hu ◽  
Minghai Li
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Thermal Conduction ◽  
Total Heat ◽  
Surface Radiation ◽  
Total Heat Transfer ◽  
Char Layer ◽  
Competition Result ◽  
Transfer Mechanisms ◽  
Combined Heat Transfer

This study examines the combined heat transfer by thermal conduction, natural convection and surface radiation in the porous char layer that is formed from the intumescent coating under fire. The results show that some factors, such as the Rayleigh number, conductivity ratio, emissivity, radiation–conduction number, void fraction and heating mode have a certain effect on the total heat transfer. In addition, the natural convection of the air in the cavity always inhibits surface radiation among the solid walls and thermal conduction, and the character of the total heat transfer is the competition result of the three heat transfer mechanisms.

scholarly journals Possessives, from Franco-Provençal and Occitan Systems to Contact Dialects in Apulia and Calabria

Languages ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 63
Author(s):  
Benedetta Baldi ◽  
Leonardo Maria Savoia
Keyword(s):  
Language Variation ◽  
Final Part ◽  
Definite Article ◽  
Test Bed ◽  
North West ◽  
12Th Century ◽  
Complex Knowledge ◽  
Italian Dialects ◽  
Transfer Mechanisms

This article investigates the contact-induced reorganization of the possessive system in the Gallo-Romance dialects spoken from around the 12th century in the villages of Celle and Faeto in North Apulia and Guardia Piemontese in North-West Calabria. Gallo-Romance possessives exclude the article in the prenominal position, whereas in the Southern Italian dialects, possessives follow the noun preceded by the definite article. This original contrast is no longer visible in the varieties of Celle, Faeto and Guardia which changed the original prenominal position to the postnominal position combining with the article, except with kinship terms, preserving the original prenominal position. At the heart of contact phenomena, there are bilingualism and transfer mechanisms between the languages included in the complex knowledge of the speaker, suggesting a test bed for the treatment of language variation and parameterization. We propose an account of morpho-syntactic and interpretive properties of possessives, making use of the insights from the comparison of contact systems with prenominal (Franco-Provençal and Occitan varieties) and postnominal (Southern Italian dialects) possessives. The final part examines the distribution of possessives, tracing it back to the definiteness properties of DP and proposes a phasal treatment based on syntactic and interpretive constraints.

Sign in / Sign up

Export Citation Format

Share Document