Results 161 to 170 of about 8,751,367 (357)

Kamenev-Type Oscillation Criteria for the Second-Order Nonlinear Dynamic Equations with Damping on Time Scales

Abstract and Applied Analysis, 2012
The oscillation of solutions of the second-order nonlinear dynamic equation (r(t)(xΔ(t))γ)Δ+p(t)(xΔ(t))γ+f(t,x(g(t)))=0, with damping on an arbitrary time scale T, is investigated.
M. Tamer Şenel
doaj   +1 more source

Relativistic velocity transformation as a genitor of transformation equations (relativistic dynamics) [PDF]

arXiv, 2005
The fundamental equations of relativistic dynamics are derived from a thought experiment and from the transformation of relativistic velocity avoiding collisions and conservation laws of momentum and energy.
arxiv  

From 2D to 3D gamma passing rate tolerance and action limits for patient‐specific quality assurance in volumetric‐modulated arc therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Volumetric modulated arc therapy (VMAT) requires an accurate patient‐specific quality assurance (PSQA) program. In clinical practice, this is usually performed using the γ‐index and the two‐dimensional gamma passing rate (2D %GP). A three‐dimensional (3D) index incorporating the patient anatomy could be more useful for the 3D dose ...
Christos Zarros, George Patatoukas, Nikos Kollaros, Marina Chalkia, Andromachi Kougioumtzopoulou, Vasilios Kouloulias, Kalliopi Platoni   +6 more
wiley   +1 more source

Second-order linear constant coefficient dynamic equations with polynomial forcing on time scales [PDF]

arXiv, 2010
A general solution for a second-order linear constant coefficient dynamic equation with polynomial forcing on time scales is given.
arxiv  

Fluid dynamical limit of the nonlinear Boltzmann equation to the level of the compressible Euler equation [PDF]

, 1978
Takaaki Nishida
openalex   +1 more source

Wage Bargaining and the (Dynamic) Mincer Equation [PDF]

This paper shows that, if observed earnings are the result of employer-employee wage bargaining, under a set of specific assumptions, the standard static Mincer equation can be thought as a particular case of a dynamic wage equation.
Andini, Corrado
core  

Impact of enhanced leaf model on dose calculation accuracy in single‐isocenter multitarget stereotactic radiosurgery treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Single‐isocenter multitarget (SIMT) radiosurgery has become increasingly popular as advancement in planning and delivery systems have made this approach clinically viable. With targets varying in size and distance from isocenter, SIMT plans are highly complex with dynamic multileaf collimator (MLC) motion.
Hem Moktan, Hongyu Jiang, H. Harold Li, Kenny Guida   +3 more
wiley   +1 more source

A Comparison of Some Limited Information Estimators for Dynamic Simultaneous Equations Models with Autocorrelated Errors [PDF]

, 1974
Phoebus J. Dhrymes, Richard Berner, David J. Cummins   +2 more
openalex   +1 more source

Commissioning of Halcyon enhanced leaf model in the Eclipse treatment planning system: Focus on simple slit fields and VMAT dose calculation

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The dual‐layer multileaf collimator (MLC) in Halcyon adds complexities to the dose calculation process owing to the variability of dosimetric characteristics with leaf motion. Recently, an enhanced leaf model (ELM) was developed to refine the MLC model in the Eclipse treatment planning system. This study investigates the performance of
Ryohei Miyasaka, Mari Shirai, Mitsunobu Igari, Yume Kojima, Yuki Kozawa, Toru Kawachi, Ryusuke Hara   +6 more
wiley   +1 more source

Dynamic Initialization of a Three-Dimensional Primitive-Equation Model of Hurricane Alma of 1962 [PDF]

, 1977
James E. Hoke, Richard A. Anthes
openalex   +1 more source