Results 31 to 40 of about 15,760,783 (334)

Efficiency of terminal control in the trans-atmospheric first stage of an aerospace system under atmospheric and aerodynamic disturbances

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
Multi-step terminal control of the subhypersonic first stage of an aerospace system in trans-atmospheric climb is considered. Passive motion of spacecraft in conditions of joint influence of atmospheric and aerodynamic disturbance is analyzed.
V. L. Balakin   +2 more
doaj   +1 more source

On existence and regularity of a terminal value problem for the time fractional diffusion equation [PDF]

open access: yesInverse Problems, 2019
In this paper we consider a final value problem for a diffusion equation with time-space fractional differentiation on a bounded domain D of Rk, k ≥ 1, which includes the fractional power Lβ, 0 < β ≤ 1, of a symmetric uniformly elliptic operator L ...
N. Tuan   +3 more
semanticscholar   +1 more source

Predictive Control with Learning-Based Terminal Costs Using Approximate Value Iteration [PDF]

open access: yesIFAC-PapersOnLine, 2022
Stability under model predictive control (MPC) schemes is frequently ensured by terminal ingredients. Employing a (control) Lyapunov function as the terminal cost constitutes a common choice.
Francisco Moreno-Mora   +2 more
semanticscholar   +1 more source

Guardrail-based air supply terminal for improving ventilation effectiveness and saving energy in the waiting zone

open access: yesEnergy Exploration & Exploitation, 2021
In the waiting zones of airports, train stations, and other transportation hubs, poor indoor environment is primarily caused by human body-related factors in conjunction with the high density of people.
Ran Gao   +7 more
doaj   +1 more source

Recovery of high order accuracy in Jacobi spectral collocation methods for fractional terminal value problems with non-smooth solutions

open access: yesJournal of Computational and Applied Mathematics, 2019
An open problem in the numerical analysis of spectral methods for fractional differential equations is how to maintain the high-order accuracy for non-smooth solutions.
M. A. Zaky
semanticscholar   +1 more source

A dynamic programming approach to constrained portfolios [PDF]

open access: yes, 2011
This paper studies constrained portfolio problems that may involve constraints on the probability or the expected size of a shortfall of wealth or consumption.
Kraft, Holger, Steffensen, Mogens
core   +1 more source

Analysis of a Quasi-Reversibility Method for a Terminal Value Quasi-Linear Parabolic Problem with Measurements [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2018
This paper presents a modified quasi-reversibility method for computing the exponentially unstable solution of a nonlocal terminal-boundary value parabolic problem with noisy data.
N. Tuan, V. A. Khoa, V. Au
semanticscholar   +1 more source

On the theory of fractional terminal value problem with ψ-Hilfer fractional derivative

open access: yes, 2020
In this paper, we prove the existence and uniqueness of solutions of a new class of boundary value problems of terminal type for ψ-Hilfer fractional differential equations. The technique used in the analysis relies on the Banach contraction principle and
M. Almalahi   +2 more
semanticscholar   +1 more source

Transport through a double quantum dot with interdot repulsion

open access: yes, 2008
We study transport through a double quantum dot with interdot hopping $t$, intradot repulsion $U$ and interdot repulsion $U^{\prime}$, using the numerical renormalization group (NRG) method.
Akira Oguri, Galpin MR, Yunori Nisikawa
core   +1 more source

From academia to enterprise: how work value and organisational factors influence academic entrepreneurship

open access: yesAfrican Business Management Journal
Scholars in the social sciences have paid attention to the work value, but little is known about its significance from an entrepreneurship point of view.
Ruth Elias
doaj   +1 more source

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