Calorimeter and Accessories for Very High Thermal Radiation Flux Measurements

1960 ◽  
Vol 31 (10) ◽  
pp. 1160-1161 ◽  
Author(s):  
J. C. Cook ◽  
H. S. Levine
Keyword(s):  
Thermal Radiation ◽  
Radiation Flux ◽  
Flux Measurements ◽  
Very High

scholarly journals Particle dynamics in the stellar magnetosphere by gravitational collapse

2010 ◽  
Vol 6 (S271) ◽  
pp. 383-384
Author(s):  
Volodymyr Kryvdyk
Keyword(s):  
Thermal Radiation ◽  
Gravitational Collapse ◽  
Radiation Flux ◽  
Gamma Ray ◽  
Wide Band ◽  
Particle Dynamics ◽  
X Rays ◽  
Relativistic Jets ◽  
Stellar Radius ◽  
Polar Caps

AbstractThe particle dynamics and in the stellar magnetosphere during gravitational collapse is investigated. The formations of relativistic jets and the generation of the radiation bursts in the stellar magnetosphere by gravitational collapse are considered. As follows from results, the stars on the stage of gravitational collapse must be powerful sources of the relativistic jets and the non-thermal radiation. These jets will formed in the polar caps of collapsing stars magnetospheres, when the stellar magnetic field increases during collapse and the charged particles will be accelerate. These jets will generate the non-thermal radiation. The radiation flux grows with decreasing stellar radius and can be observed in the form of radiation burst in wide band wave- from radio to gamma-ray. These bursts radiation can be observed as gamma- and X- rays bursts.

Quantifying the impact of cloud cover on ground radiation flux measurements using hemispherical images

2015 ◽  
Vol 36 (19-20) ◽  
pp. 5087-5104 ◽  
Author(s):  
L. Roupioz ◽  
J. Colin ◽  
L. Jia ◽  
F. Nerry ◽  
M. Menenti
Keyword(s):  
Cloud Cover ◽  
Radiation Flux ◽  
Flux Measurements ◽  
The Impact

Augmentation of Thermal Radiation Flux Resistance Capacity Using Autoclaved Aerated Concrete (AAC) Blocks: A Sustainable Approach

2015 ◽  
Vol 650 ◽  
pp. 114-121
Author(s):  
Amarjit Sahu ◽  
Moni Sankar Hazra
Keyword(s):  
Thermal Radiation ◽  
Radiation Flux ◽  
Extensive Study ◽  
Mitigation Measures ◽  
Process Unit ◽  
Light Weight ◽  
Protective Measures ◽  
Air Conditioning System ◽  
Safety Requirements ◽  
Aerated Concrete

EIL had carried out consequence modelling for catastrophic rupture of debutanizer reflux drum of FCC unit in Haldia refinery and analyzed the mitigation measures required. The catastrophic rupture may produce thermal radiation distances due to fireball of 12.5kW/m2, which will be extending up to administrative building. It was recommended that any openings facing towards process unit should be blocked and protective measures to be taken to withstand thermal radiation of 12.5kW/m2. Therein, extensive study was carried out on the properties of the AAC blocks and it was found that they are light weight, can withstand temperature below 30000C without crumbling and have excellent fire resistance properties. Plate glass in a window can absorb some 40 to 60% of the radiation from a building fire and cannot be relied on to afford protection as large areas are liable to crack and fall out. Hence, glazed openings of the Administrative Building towards the Process Units were closed with AAC blocks of 125mm thickness. Apart from ensuring desired safety requirements and reducing spread of incident heat flux to internal parts of the building during a fire, this has also brought down the heat load on the air-conditioning system due to lower interior temperature.

Independence of apical Cl-/HCO3- exchange and anion conductance in duodenal HCO3- secretion

2003 ◽  
Vol 285 (5) ◽  
pp. G887-G897 ◽  
Author(s):  
S. Spiegel ◽  
M. Phillipper ◽  
H. Rossmann ◽  
B. Riederer ◽  
M. Gregor ◽  
...  
Keyword(s):  
Anion Channel ◽  
Duodenal Mucosa ◽  
Secretory Response ◽  
Transport Pathways ◽  
Expression Levels ◽  
Ussing Chambers ◽  
Anion Conductance ◽  
Flux Measurements ◽  
Very High ◽  
Secretion Rates

Reduced gastrointestinal [Formula: see text] secretion contributes to malabsorption and obstructive syndromes in cystic fibrosis. The apical [Formula: see text] transport pathways in these organs have not been defined. We therefore assessed the involvement of apical Cl-/[Formula: see text] exchangers and anion conductances in basal and cAMP-stimulated duodenal [Formula: see text] secretion. Muscle-stripped rat and rabbit proximal duodena were mounted in Ussing chambers, and electrical parameters, [Formula: see text] secretion rates, and 36Cl-, 22Na+, and 3H+ mannitol fluxes were assessed. mRNA expression levels were measured by a quantitative PCR technique. Removal of Cl- from or addition of 1 mM DIDS to the luminal perfusate markedly decreased basal [Formula: see text] secretion but did not influence the [Formula: see text] secretory response to 8-bromo-cAMP, which was inhibited by luminal 5-nitro-2-(3-phenylpropylamino)-benzoate. Bidirectional 22Na+ and 36Cl- flux measurements demonstrated an inhibition rather than a stimulation of apical anion exchange during cAMP-stimulated [Formula: see text] secretion. The ratio of Cl- to [Formula: see text] in the anion secretory response was compatible with both Cl- and [Formula: see text] being secreted via the CFTR anion channel. CFTR expression was very high in the duodenal mucosa of both species. We conclude that in rat and rabbit duodena, an apical Cl-/[Formula: see text] exchanger mediates a significant part of basal [Formula: see text] secretion but is not involved in the [Formula: see text] secretory response to cAMP analogs. The inhibitor profile, the strong predominance of Cl- over [Formula: see text] in the anion secretory response, and the high duodenal CFTR expression levels suggest that a major portion of cAMP-stimulated duodenal [Formula: see text] secretion is directly mediated by CFTR.

Thermal Radiation in Laminar Boundary Layers on Continuous Moving Surfaces

1974 ◽  
Vol 96 (1) ◽  
pp. 32-36 ◽  
Author(s):  
C. A. Rhodes ◽  
C. C. Chen
Keyword(s):  
Heat Transfer ◽  
Thermal Radiation ◽  
Boundary Layers ◽  
Analytical Study ◽  
Radiation Flux ◽  
Radiation Heat Transfer ◽  
Normal Velocity ◽  
Radiation Heat ◽  
Flat Plates ◽  
Laminar Boundary Layers

Thermal radiation heat transfer is studied in boundary layers on continuous moving surfaces. An analytical study is performed for two-dimensional laminar flow of an absorbing and emitting fluid. Solutions were obtained for limiting conditions of optically thin and thick boundary layers. Comparisons indicate that the radiation flux in these boundary layers is less than that for flow over semi-infinite flat plates for optically thin flows. The radiation contribution becomes more nearly equal as optical thickness increases. The normal velocity induced in the free stream by the wall motion significantly affects the radiation heat transfer.

Singularities of light diode radiation flux measurements by using photometric heads

1989 ◽  
Vol 32 (4) ◽  
pp. 297-301
Author(s):  
S. G. Guminetskii ◽  
L. S. Lovinskii
Keyword(s):  
Radiation Flux ◽  
Light Diode ◽  
Flux Measurements

Automated suite for metrological support to working means of measuring thermal radiation flux densities

1985 ◽  
Vol 28 (12) ◽  
pp. 1079-1081
Author(s):  
O. A. Gerashchenko ◽  
N. N. Bazyr' ◽  
V. N. Morozov ◽  
S. A. Sazhina
Keyword(s):  
Thermal Radiation ◽  
Metrological Support ◽  
Radiation Flux

Experimental and numerical analysis of the heat transfer in a packed bed exposed to the high thermal radiation flux

2019 ◽  
Vol 136 ◽  
pp. 383-392 ◽  
Author(s):  
Gustavo Ruiz ◽  
Nicolás Ripoll ◽  
Nataliia Fedorova ◽  
Ana Zbogar-Rasic ◽  
Vojislav Jovicic ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Analysis ◽  
Thermal Radiation ◽  
Radiation Flux ◽  
Packed Bed
Sign in / Sign up

Export Citation Format

Share Document