Results 31 to 40 of about 581,628 (317)

Physical modelling in biomechanics [PDF]

Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2003
Physical models, like mathematical models, are useful tools in biomechanical research. Physical models enable investigators to explore parameter space in a way that is not possible using a comparative approach with living organisms: parameters can be varied one at a time to measure the performance consequences of each, while values and combinations not
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Kinetic modeling of Nernst effect in magnetized hohlraums [PDF]

, 2016
We present nanosecond time-scale Vlasov-Fokker-Planck-Maxwell modeling of magnetized plasma transport and dynamics in a hohlraum with an applied external magnetic field, under conditions similar to recent experiments.
Joglekar, A. S., Thomas, AG, Ridgers CP, Kingham RJ, Joglekar AS, Joglekar, AS, Ridgers, Christopher Paul, Kingham, R J, Kingham, RJ, Thomas AGR, Thomas, A. G. R., Kingham, R. J., Ridgers, C. P., Ridgers, CP   +13 more
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Computer Vision Algorithm for Characterization of a Turbulent Gas–Liquid Jet

Inventions
A computer vision algorithm to determine the parameters of a two-phase turbulent jet of a water-gas mixture traveling at a velocity in the range of 5–10 m/s was developed in order to evaluate the hydrodynamic efficiency of mass exchange apparatuses in ...
Ilya Starodumov, Sergey Sokolov, Pavel Mikushin, Margarita Nikishina, Timofey Mityashin, Ksenia Makhaeva, Felix Blyakhman, Dmitrii Chernushkin, Irina Nizovtseva   +8 more
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Accurate parameter identification of solar cells and photovoltaic modules under real conditions using a new Differential Evolution approach

Unconventional Resources
The global shift towards solar energy has intensified the need for advanced research on high-efficiency photovoltaic (PV) systems. Accurate extraction of PV parameters from current-voltage curves is critical for precise simulation, evaluation, and ...
Driss Saadaoui, Mustapha Elyaqouti, Imade Choulli, Ismail Abazine, Abdelfattah Elhammoudy, Souad Lidighbi, Dris Ben Hmamou, Brahim Ydir, El Hanafi Arjdal, Khalid Assalaou   +9 more
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Evolution of Pneumatic Tsunami Simulators–From Concept to Proven Experimental Technique

Frontiers in Built Environment, 2021
This paper describes the evolution through three generations of pneumatic Tsunami Simulators for physical model tests of realistic tsunami. The pneumatic method, originally developed for tidal modeling in the Fifties, has been modernized to generate ...
Ian Chandler, William Allsop, David Robinson, Tiziana Rossetto   +3 more
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On the Concept of Model in Physics

The Educational Review, USA, 2023
The concept of model is the basis for theoretical and experimental research in physics. A model is defined as an application of physical theories to the description of a physical system. As a premise to the introduction of models, physical theories are defined as mathematical frameworks with a hypothetical-deductive structure, provided with a mapping ...
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Mean flow generation by three-dimensional nonlinear internal wave beams [PDF]

, 2019
We study the generation of resonantly growing mean flow by weakly nonlinear internal wave beams. With a perturbational expansion, we construct analytic solutions for three-dimensional internal wave beams, exact up to first-order accuracy in the viscosity
Sub Physical Oceanography, Raja, K. J., Maas, L. R.M., Sub Mathematical Modeling, Beckebanze, F., Marine and Atmospheric Research   +5 more
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Optimization of PV parameters under varied environmental conditions: A hybrid secant–Newton-Raphson method

Unconventional Resources
Photovoltaic (PV) systems play a crucial role in renewable energy production, and accurate parameter estimation is essential for modeling and performance analysis. In this paper, a hybrid method combining the secant and Newton-Raphson methods is employed
Brahim El Fahmi, Driss Saadaoui, Imade Choulli, Khalid Assalaou, Ismail Abazine, Mustapha Elyaqouti, El hanafi Arjdal, Mohammed Agdam, Yassine El aidi Idrissi   +8 more
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Influence of Bubble Shape on Mass Transfer in Multiphase Media: CFD Analysis of Concentration Gradients

Fluids
Our study investigates how non-spherical bubble shapes influence gas–liquid mass transfer across the bubble interface. An analytical shape descriptor, namely Superformula, is used to parametrically define the bubble interface, enabling efficient CFD ...
Irina Nizovtseva, Pavel Mikushin, Ilya Starodumov, Ksenia Makhaeva, Margarita Nikishina, Sergey Vikharev, Olga Averkova, Dmitri Alexandrov, Dmitrii Chernushkin, Sergey Lezhnin   +9 more
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A Model for Physical Nucleon [PDF]

Progress of Theoretical Physics, 1962
The anomalous magnetic moment of nucleon is investigated by taking the possible ex­ citations of the nucleon core or the cloud pions into account. For the sake of definiteness and simplicity two assumptions are made: 1) the physical nucleon is composed of the static core accompanied by one or no cloud particle, 2) the virtual excitations can be treated
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