Results 51 to 60 of about 20,904 (174)
Rigorous Born Approximation and beyond for the Spin-Boson Model
, 2004 Within the lowest-order Born approximation, we present an exact calculation of the time dynamics of the spin-boson model in the ohmic regime. We observe non-Markovian effects at zero temperature that scale with the system-bath coupling strength and cause
A. Abragam +10 more
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Mathematical Methods in the Applied Sciences, EarlyView.We develop a full randomization of the classical hyper‐logistic growth model by obtaining closed‐form expressions for relevant quantities of interest, such as the first probability density function of its solution, the time until a given fixed population is reached, and the population at the inflection point.
Juan Carlos Cortés +2 more
wiley +1 more source
Learning Mechanical Vibrations with Wolfram Mathematica
Modelling in Science Education and Learning, 2015 Mechanical vibrations as subject can be found within many Engineering and Science Degrees. To achieve that the students understand the mathematics and its physical interpretation is the objective we should get as docents. In this paper we describe how to
Mario Lázaro
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African Scientific Reports, 2022 An inflammatory disease resulting in the pathological constriction of the intima and media of the arterial system, such as the aorta, causes symptoms like stroke, heart attack, or angina; This research investigates the convective flow of blood through a
K. W. Bunonyo, E. Amos
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Interlayer Couplings Mediated by Antiferromagnetic Magnons
, 2018 Collinear antiferromagnets (AFs) support two degenerate magnon excitations carrying opposite spin polarizations, by which magnons can function as electrons in various spin-related phenomena.
Cheng, Ran, Xiao, Di, Zhu, Jian-Gang
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Mathematical Analysis and Simulations of a Cancer Model With Interleukins and Delayed Immunotherapy
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT A new system of delayed differential equations for tumor‐immune system interactions is proposed and studied. The system describes the interactions between tumor cells and the immune system at the most aggressive phase of cancer, where tumor cells have developed mechanisms from earlier stages to evade immune responses.
Laid Boudjellal +2 more
wiley +1 more source
The FEBS Journal, EarlyView.Computational modelling and in vitro liver cell experiments indicate that medium‐chain acyl‐CoA dehydrogenase (MCAD) deficiency causes an accumulation of (especially medium‐chain) acyl‐CoAs at the cost of free CoA (CoASH). A substantial decrease in CoASH impairs flux through many pathways essential for energy homeostasis.
Ligia Akemi Kiyuna +17 more
wiley +1 more source
Use of Cost-Adjusted Importance Measures for Aircraft System Maintenance Optimization
Aerospace, 2018 The development of an aircraft maintenance planning optimization tool and its application to an aircraft component is presented. Various reliability concepts and approaches have been analyzed, together with objective criteria which can be used to ...
Michail Bozoudis +2 more
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Вестник Самарского государственного технического университета. Серия: Технические науки, 2022 The paper deals with assessing the scope of the approximation algorithm for smoothing chromatographic signals. The algorithm is based on Chebyshev-Hermite functions.
Andrey V. Bochkarev +1 more
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Solving second-order linear ordinary differential equations by using interactive software [PDF]
, 2017 Differential equations constitute an area of great theoretical research and applications in several branches of science and technology. The scope of this work is to present new software that is able to show all the steps in the process of solving a ...
Coelho, Celestino, Marreiros, Rui
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