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Showing 1 to 16 of 16 for “"energy balance equation"”.
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Directional growth of wind generated waves
… spectral growth mechanism, i.e., it applies the energy balance equation in a directionally integrated form. The directionality of its growth is obtained from an assumed spreading function on the wind direction. In this study, the energy balance equation is applied in directional form using …
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Micrometeorological approaches to measure and model surface energy fluxes of irrigated citrus orchards in a semi-arid environment
… theoretical methods for evaluating mass and energy exchange processes within one of the most relevant crop of the agricultural Sicilian context. The study was conceived as a long monitoring program of micrometeorological features of the study orange orchard at different spatial scales (plant, …
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Similarity relations of wind waves in finite depth
… in wave number space relations between the energy, equilibrium parameters and peak wave number are derived. Using a regression analysis, relations are obtained from the data and compared to the theoretical relations. Results indicate that the formulation based on a high-frequency f-4 tail …
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An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads
… disc. The velocity of this disc is recorded. An energy analysis is performed on the test results and an energy balance equation is formulated. Einput = Edeformation + Etearing + Edisc. The input and disc energies are obtained from the experimental measurements and the deformation energy is …
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Simulating the Modulation Response of Vertical -Cavity Surface -Emitting Lasers
… physics, a coupled one-dimensional rate equation model has also been developed. We further demonstrate that this damping effect can be significantly reduced by restricting the current injection area to the area of large transverse optical field. This is achievable by using tapered oxides …
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Neural Mechanisms Mediating the Effects of Food Cues and Acute Exercise: a functional Magnetic Resonance Imaging and Functional Connectivity Investigation
… Ultimately, obesity arises from a sustained imbalance in the energy balance equation from either excessive energy consumption or significantly reduced activity. Here we report on findings from two fRMI studies, each of which examines one side of the energy balance equation. In our first study, …
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Convection in a differentially heated rotating spherical shell of Boussinesq fluid with radiative forcing
… to the pole. We change the model to include an energy balance equation at the earth's surface, which incorporates latitudinal solar radiation distribution and ice-albedo feedback mechanism with moving ice boundary. For the fluid velocity, on the inner boundary, two conditions are considered: …
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Influence of cyclic changes in ovarian hormones on resting metabolic rate and appetite in women
Energy balance, when energy intake (EI) equals energy expenditure (EE), is key in the maintenance of body weight and composition. Pre-menopausal women seem to experience fluctuations on both sides of the energy balance equation and this seems to respond to changes in the ovarian hormones, estradiol …
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Utilising games and design-research methodology to promote physical activity among adolescents.
… yet engaging adolescents in PA, one side of the energy balance equation, remains a challenge. 'Gaming culture' among youths might be an alternative approach and it is with this in mind that this research-through-design project explored how design practice and behaviour change theories can be …
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Estimation of land surface water and energy balance flux components and closure relation using conditional sampling
Models of terrestrial water and energy balance include numerical treatment of heat and moisture diffusion in the soil-vegetation-atmosphere continuum. These two diffusion and exchange processes are linked only at a few critical points. The performance and sensitivity of models are highly dependent …
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Bridging the Gap Between Lidar, Thermal, and Multispectral Remote Sensing for Irrigation Scheduling Applications
… fraction through manipulation of the available energy balance equation. Seasonal and spatial relationships between WDI and volumetric water content (VWC) over a wheat and pea crop were observed at a study site with heterogeneous soil textures over two growing seasons; wheat was planted in the …
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Thermal performance of backflow solar air heating with integrated nanoparticle enhanced pcm absorber storage system
… wax. A three-dimensional Navier-Stokes equation coupled with the energy balance equation is solved using the computational fluid dynamics (CFD) software program to implement numerical computations. The numerical analysis is conducted to determine the optimum collector dimensions in terms …
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Quality Assurance for Eddy Covariance Measurements of Turbulent Fluxes and its Influence on the Energy Balance Closure Problem
… measurements are required to study the surface energy balance and the exchange of gaseous air constituents. Due to improvements in the construction of adequate sensors and the progress in computer technology during the last decades this method is now well-established. However, a general failure …
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Thermal Management Using Liquid-vapor Phase Change in Nanochannels
… surface temperature is obtained by solving the energy balance equation numerically and the extent of cooling and the resulting enhancement in the electrical power output is studied in detail. The nanochannels device is found to reduce the PV surface temperature significantly with an average …
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Improved closure relations for the two fluid-model in flashing flows
… of two separate sets of mass, momentum, and energy conservation equations for the liquid and gas phases. In the two-fluid model, the interaction between the phases is determined by the mass, momentum, and energy transfer terms, which in turn are a function of the interfacial area …
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Derivation of Similarith solutions for the One-Dimensional, One-Velocity Neutron Diffusion Equation Using Lie Group Transformation Theory
Made available in DSpace on 2017-07-06T18:55:28Z (GMT). No. of bitstreams: 3 Myers_William_L_MS.pdf: 26862151 bytes, checksum: fb1b194ae8d1df514a990af341ae3487 (MD5) Myers_William_L_MS_ABS.pdf: 596542 bytes, checksum: 6959b7aaf4a682d0c3b55423a0f04de3 (MD5) license.txt: 4813 bytes, checksum: …