INFLUENCE OF DROPLETS HEATING MANNER TO THE SPRAYED LIQUID THERMAL STATE

2008 ◽  
Author(s):  
Gintautas U. Miliauskas ◽  
Stasys Sinkunas
Keyword(s):  
Thermal State

CORRELATION INTERACTIONS OF QUANTUM PARTICLES

2019 ◽  
Author(s):  
Evgeniy Krasnopevtsev
Keyword(s):  
Thermal State ◽  
Mutual Interference ◽  
Quantum Gas ◽  
Quantum Particles

Correlation of particles number in an equilibrium thermal state of quantum gas is caused mutual «interference repulsion» and antibunching at fermions and «interference attraction» and bunching at bosons.

Efficiency of special cooling liquid on thermal state of athletes at high temperatures

2019 ◽  
pp. 60-63
Author(s):  
S. M. Rasinkin ◽  
M. V. Dvornikov ◽  
I. A. Artamonova ◽  
V. V. Petrova ◽  
A. A. Kish ◽  
...  
Keyword(s):  
High Temperatures ◽  
Thermal State ◽  
Subjective Evaluation ◽  
Maximal Oxygen Consumption ◽  
Weighted Average ◽  
Male Athletes ◽  
Cooling Liquid ◽  
Sport Teams ◽  
Heat State ◽  
Average Skin

The article presents results of evaluating efficiency of special cooling liquid influence on heat state of athletes at high temperatures. The study covered 7 male athletes of cyclic sports, with sport rank at least 1 adult, average age 19.29±1.80 years. All the athletes underwent double examination including: anamnesis and complaints records, doctor’s examination, subjective evaluation of heat sensations, weight measurements, thermometry (tympanic, sublingual, rectal and skin (in 5 points)), ergospirometric stress testing. Changes in the athletes’ heat state were evaluated via dynamics of weighted average skin temperature and rectal temperature. Moreover, subjective evaluation of heat sensations was considered. Efficiency of the cooling liquid was assessed via dynamics of exercises performance time, maximal oxygen consumption and anaerobic metabolism threshold. The cooling liquid use appeared to be expedientin sport teams of summer sports for specific exertion after individual tests for adverse allergic reactions.

scholarly journals Model-Based Control of Torque and Nitrogen Oxide Emissions in a Euro VI 3.0 L Diesel Engine through Rapid Prototyping

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1107
Author(s):  
Stefano d’Ambrosio ◽  
Roberto Finesso ◽  
Gilles Hardy ◽  
Andrea Manelli ◽  
Alessandro Mancarella ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Rapid Prototyping ◽  
Nitrogen Oxide ◽  
Thermal State ◽  
Pollutant Emissions ◽  
Computational Time ◽  
Nox Emissions ◽  
Model Based ◽  
Brake Mean Effective Pressure ◽  
The Impact

In the present paper, a model-based controller of engine torque and engine-out Nitrogen oxide (NOx) emissions, which was previously developed and tested by means of offline simulations, has been validated on a FPT F1C 3.0 L diesel engine by means of rapid prototyping. With reference to the previous version, a new NOx model has been implemented to improve robustness in terms of NOx prediction. The experimental tests have confirmed the basic functionality of the controller in transient conditions, over different load ramps at fixed engine speeds, over which the average RMSE (Root Mean Square Error) values for the control of NOx emissions were of the order of 55–90 ppm, while the average RMSE values for the control of brake mean effective pressure (BMEP) were of the order of 0.25–0.39 bar. However, the test results also highlighted the need for further improvements, especially concerning the effect of the engine thermal state on the NOx emissions in transient operation. Moreover, several aspects, such as the check of the computational time, the impact of the controller on other pollutant emissions, or on the long-term engine operations, will have to be evaluated in future studies in view of the controller implementation on the engine control unit.

scholarly journals Constraints on quasinormal modes and bounds for critical points from pole-skipping

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Navid Abbasi ◽  
Matthias Kaminski
Keyword(s):  
Critical Points ◽  
Thermal State ◽  
Quasinormal Modes ◽  
Scalar Perturbation ◽  
Black Brane ◽  
Massive Scalar ◽  
Dual Operator ◽  
Conformal Dimension ◽  
Scalar Operator ◽  
First Time

Abstract We consider a holographic thermal state and perturb it by a scalar operator whose associated real-time Green’s function has only gapped poles. These gapped poles correspond to the non-hydrodynamic quasinormal modes of a massive scalar perturbation around a Schwarzschild black brane. Relations between pole-skipping points, critical points and quasinormal modes in general emerge when the mass of the scalar and hence the dual operator dimension is varied. First, this novel analysis reveals a relation between the location of a mode in the infinite tower of quasinormal modes and the number of pole-skipping points constraining its dispersion relation at imaginary momenta. Second, for the first time, we consider the radii of convergence of the derivative expansions about the gapped quasinormal modes. These convergence radii turn out to be bounded from above by the set of all pole-skipping points. Furthermore, a transition between two distinct classes of critical points occurs at a particular value for the conformal dimension, implying close relations between critical points and pole-skipping points in one of those two classes. We show numerically that all of our results are also true for gapped modes of vector and tensor operators.

scholarly journals Validity and reliability of the Cold Discomfort Scale: a subjective judgement scale for the assessment of patient thermal state in a cold environment

2013 ◽  
Vol 28 (3) ◽  
pp. 287-291 ◽  
Author(s):  
Peter Lundgren ◽  
Otto Henriksson ◽  
Kalev Kuklane ◽  
Ingvar Holmér ◽  
Peter Naredi ◽  
...  
Keyword(s):  
Thermal State ◽  
Cold Environment ◽  
Validity And Reliability ◽  
Subjective Judgement

Controllable thermal state design method of flexible shapes of piston cooling galleries

2021 ◽  
Vol 191 ◽  
pp. 116865
Author(s):  
Xiwen Deng ◽  
Hao Chen ◽  
Jilin Lei ◽  
Dewen Jia ◽  
Yuhua Bi
Keyword(s):  
Thermal State ◽  
Design Method ◽  
Piston Cooling

scholarly journals Hyperspectral Imagery for Assessing Laser-Induced Thermal State Change in Liver

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 643
Author(s):  
Martina De Landro ◽  
Ignacio Espíritu García-Molina ◽  
Manuel Barberio ◽  
Eric Felli ◽  
Vincent Agnus ◽  
...  
Keyword(s):  
Thermal Damage ◽  
Thermal State ◽  
Preliminary Investigation ◽  
Spectral Band ◽  
Spectral Variation ◽  
Ablation Therapy ◽  
Clinical Endpoints ◽  
Breathing Motion ◽  
Living Tissues

This work presents the potential of hyperspectral imaging (HSI) to monitor the thermal outcome of laser ablation therapy used for minimally invasive tumor removal. Our main goal is the establishment of indicators of the thermal damage of living tissues, which can be used to assess the effect of the procedure. These indicators rely on the spectral variation of temperature-dependent tissue chromophores, i.e., oxyhemoglobin, deoxyhemoglobin, methemoglobin, and water. Laser treatment was performed at specific temperature thresholds (from 60 to 110 °C) on in-vivo animal liver and was assessed with a hyperspectral camera (500–995 nm) during and after the treatment. The indicators were extracted from the hyperspectral images after the following processing steps: the breathing motion compensation and the spectral and spatial filtering, the selection of spectral bands corresponding to specific tissue chromophores, and the analysis of the areas under the curves for each spectral band. Results show that properly combining spectral information related to deoxyhemoglobin, methemoglobin, lipids, and water allows for the segmenting of different zones of the laser-induced thermal damage. This preliminary investigation provides indicators for describing the thermal state of the liver, which can be employed in the future as clinical endpoints of the procedure outcome.

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