Results 41 to 50 of about 6,187,846 (396)

Energy Intake Derived from an Energy Balance Equation, Validated Activity Monitors, and Dual X-Ray Absorptiometry Can Provide Acceptable Caloric Intake Data among Young Adults.

Journal of NutriLife, 2018
Background Assessments of energy intake (EI) are frequently affected by measurement error. Recently, a simple equation was developed and validated to estimate EI on the basis of the energy balance equation [EI = changed body energy stores + energy ...
R. Shook, G. Hand, D. O'Connor, Diana M. Thomas, T. Hurley, J. Hébert, C. Drenowatz, G. Welk, A. Carriquiry, S. Blair   +9 more
semanticscholar   +1 more source

Macroscopic Balance Equations [PDF]

, 2001
A balance equation accounts for changes in an extensive quantity (such as mass or energy) that occur in a well-defined region of space, called the control volume (CV). The control volume is set off from its surroundings by boundaries, called control surfaces (CS). These surfaces may coincide with real surfaces, or they may be mathematical abstractions,
Paul K. Andersen, Sarah W. Harcum
openaire   +2 more sources

Stringy Probe Particle and Force Balance [PDF]

, 1999
We directly derive the classical equation of motion, which governs the centre of mass of a test string, from the string action. In a certain case, the equation is basically same as one derived by Papapetrou, Dixon and Wald for a test extended body.
A. Papapetrou, A. Papapetrou, A.A. Tseytlin, C.G. Callan, D. Kastor, D. Kastor, E. Bergshoeff, E. Bergshoeff, G.T. Horowitz, G.T. Horowitz, G.T. Horowitz, G.W. Gibbons, J. Nester, J. Polchinski, J. Tiomno, K.P. Tod, M. Cevetic, M. Rogatko, R. Kallosh, R.M. Wald, S.D. Majumdar, T. Shiromizu, Tetsuya Shiromizu, V. Balasubramanian, W. Israel, W. Israel, W.G. Dixon, W.G. Dixon, Z. Perjes   +28 more
core   +2 more sources

Effective Capital in Upgraded Solow Macro-Model of Economic Growth

Вестник Российского экономического университета имени Г. В. Плеханова, 2022
The article studies the macro-economic theory of economic growth Solow in complicated case, when technical progress is materialized in capital. In this situation the production function depends on effective capital and labour resource.
A. Yu. Meerson, A. P. Chernyaev
doaj   +1 more source

New Kinetic Equation for Pair-annihilating Particles: Generalization of the Boltzmann Equation [PDF]

, 1999
A convenient form of kinetic equation is derived for pair annihilation of heavy stable particles relevant to the dark matter problem in cosmology. The kinetic equation thus derived extends the on-shell Boltzmann equation in a most straightforward way ...
A. O. Caldeira, B. W. Lee, G. Jungman, H. A. Weldon, I. Joichi, I. Joichi, I. Joichi, M. Yoshimura, R. P. Feynman, R. P. Feynman, Sh. Matsumoto, Sh. Matsumoto, Sh. Matsumoto   +12 more
core   +3 more sources

Kinetic equation consistent with the equation of state of nuclear matter [PDF]

, 1998
A kinetic equation which combines the quasiparticle drift of Landau's equation with a dissipation governed by a nonlocal and noninstant scattering integral in the spirit of Snider's equation for gases is derived.
Alm, Baerwinkel, Baerwinkel, Bertsch, Bogoliubov, Bornath, Chapman, Danielewicz, Danielewicz, de Haan, de Haan, de Haan, Green, Hirschfelder, Kawasaki, Kortemeyer, Köhler, Malfliet, Morawetz, Nacher, Nacher, Snider, Stöcker, Špička, Špička, Špička, Špička   +26 more
core   +2 more sources

The Stochastic Balance Equation for the American Option Value Function and its Gradient [PDF]

arXiv, 2021
In the paper we consider the problem of valuation and hedging of American options written on dividend-paying assets whose price dynamics follow the multidimensional diffusion model. We derive a stochastic balance equation for the American option value function and its gradient.
arxiv  

Transport theory with nonlocal corrections [PDF]

, 1998
A kinetic equation which combines the quasiparticle drift of Landau's equation with a dissipation governed by a nonlocal and noninstant scattering integral in the spirit of Snider's equation for gases is derived.
Baym, Bornath, Danielewicz, de Haan, K. Morawetz, Kortemeyer, Laloe, Morawetz, Nacher, Pavel Lipavský, Václav Špička, Špička, Špička, Špička   +13 more
core   +2 more sources

Log-Conformation Representation of Hiperbolic Conservation Laws with Source Term

Trends in Computational and Applied Mathematics, 2014
The objective of this work is to study, through a simpler equation, the statement that the numerical instability associated to the high number of Weissenberg in equations with source term can be resolved by the use of the so called logarithmic ...
Luciene Aparecida Bielça Silva, Messias Meneguette   +1 more
doaj   +1 more source

Bohmian trajectories and the Path Integral Paradigm. Complexified Lagrangian Mechanics

, 2008
David Bohm shown that the Schr{\"o}dinger equation, that is a "visiting card" of quantum mechanics, can be decomposed onto two equations for real functions - action and probability density.
Bellman R., Bohm D., Brillouin L., Chou C.-C., DeWitt B. S., DeWitt B. S., Dirac P. A. M., Dirac P. A. M., Feynman R. P., Feynman R. P., Johnson G. W., Lanczos C., Poluyan P. V., Sargent T. J., Sbitnev V. I., Titchmarsh E. C., VALERIY I. SBITNEV, Wyatt R. E.   +17 more
core   +1 more source