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Geometric optimal control and applications to aerospace
Springer Science and Business Media LLC - - 2017
Jiamin Zhu, Emmanuel Trélat, Max Cerf
This article deals with applications of optimal control to aerospace problems with a focus on modern geometric optimal control tools and numerical continuation techniques. Geometric optimal control is a theory combining optimal control with various concepts of differential geometry. The ultimate objective is to derive optimal synthesis results for general classes of control systems. Continuation o... hiện toàn bộ
An indirect search algorithm for disaster restoration with precedence and synchronization constraints
Springer Science and Business Media LLC - Tập 9 - Trang 1-15 - 2017
Akifumi Kira, Hidenao Iwane, Hirokazu Anai, Yutaka Kimura, Katsuki Fujisawa
When a massive disaster occurs, to repair the damaged part of lifeline networks, planning is needed to appropriately allocate tasks to two or more restoration teams and optimize their traveling routes. However, precedence and synchronization constraints make restoration teams interdependent of one another, and impede a successful solution by standard local search. In this paper, we propose an indi... hiện toàn bộ
Variational principle of stationary action for fractional nonlocal media and fields
Springer Science and Business Media LLC - Tập 7 - Trang 1-11 - 2015
Vasily E. Tarasov
Derivatives and integrals of non-integer orders have a wide application to describe complex properties of physical systems and media including nonlocality of power-law type and long-term memory. We suggest an extension of the standard variational principle for fractional nonlocal media with power-law type nonlocality that is described by the Riesz-type derivatives of non-integer orders. As example... hiện toàn bộ
Principle of ultrasonic tomography for concrete structures and non-destructive inspection of concrete cover for reinforcement
Springer Science and Business Media LLC - Tập 10 - Trang 1-10 - 2018
Noriyuki MITA, Takashi TAKIGUCHI
The authors are trying to develop an ultrasonic CT technique for concrete structures. As the first step of its development, we study how the ultrasonic waves propagate in concrete structures and pose a problem to develop ultrasonic CT, applying which we give a non-destructive inspection technique for concrete cover by application of the idea of the ultrasonic CT. The authors claim that this study ... hiện toàn bộ
Tìm kiếm thời điểm mở cửa tối ưu để thu hoạch tài nguyên thủy sản nuôi trồng Dịch bởi AI
Springer Science and Business Media LLC - Tập 8 - Trang 1-6 - 2016
Hidekazu Yoshioka, Yuta Yaegashi
Như một ứng dụng của toán học vào các vấn đề kỹ thuật, bài báo này thiết lập một bài toán dừng tối ưu đơn giản để quyết định thời điểm mở cửa thu hoạch tài nguyên thủy sản nuôi trồng nhằm tối đa hóa hàm mục tiêu kinh tế. Một điều kiện đủ cho sự tồn tại duy nhất của thời điểm mở cửa tối ưu nội tại được cung cấp và phân tích toán học cụ thể đã được thực hiện. Phân tích so sánh tĩnh của thời điểm mở ... hiện toàn bộ
#kiến thức #tối ưu #thu hoạch #tài nguyên #thủy sản #nuôi trồng #kinh tế
Multiplicative modelling of four-phase microbial growth
Springer Science and Business Media LLC - Tập 7 - Trang 1-10 - 2015
María Jesús Munoz-Lopez, Maureen P. Edwards, Ulrike Schumann, Robert S. Anderssen
Microbial growth curves, recording the four-phases (lag, growth, stationary, decay) of the dynamics of the surviving microbes, are regularly used to support decision-making in a wide variety of health related activities including food safety and pharmaceutical manufacture. Often, the decision-making reduces to a simple comparison of some particular feature of the four-phases, such as the time at w... hiện toàn bộ
Isogonal deformation of discrete plane curves and discrete Burgers hierarchy
Springer Science and Business Media LLC - Tập 8 Số 1 - 2016
Kenji Kajiwara, Toshinobu Kuroda, Nozomu Matsuura
Optimal control theory for applications in Magnetic Resonance Imaging
Springer Science and Business Media LLC - Tập 9 - Trang 1-10 - 2017
Eric Van Reeth, Helene Ratiney, Marc Lapert, Steffen J. Glaser, Dominique Sugny
We apply innovative mathematical tools coming from optimal control theory to improve theoretical and experimental techniques in Magnetic Resonance Imaging (MRI). This approach allows us to explore and to experimentally reach the physical limits of the corresponding spin dynamics in the presence of typical experimental imperfections and limitations. We study in this paper two important goals, namel... hiện toàn bộ
Magnetic geodesics on surfaces with singularities
Springer Science and Business Media LLC - Tập 9 Số 1 - 2017
Volker Branding, Wayne Rossman
Symmetrization associated with hyperbolic reflection principle
Springer Science and Business Media LLC - - 2018
Yuuki Ida, Tsuyoshi Kinoshita, Tomohiro Matsumoto
In this paper, in view of application to pricing of Barrier options under a stochastic volatility model, we study a reflection principle for the hyperbolic Brownian motion, and introduce a hyperbolic version of Imamura-Ishigaki-Okumura’s symmetrization. Some results of numerical experiments, which imply the efficiency of the numerical scheme based on the symmetrization, are given.
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