Results 1 to 10 of about 52,070 (265)
The wave equation with locally distributed control in non-cylindrical domain [PDF]
Boundary Value Problems, 2019 This paper is concerned with exact internal controllability for a one-dimensional wave equation in a non-cylindrical domain. This equation characterizes the motion of a string with a fixed endpoint and the other moving one.
Lizhi Cui
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Exact Null Controllability of a One-Dimensional Wave Equation with a Mixed Boundary
Mathematics, 2023 In this paper, exact null controllability of one-dimensional wave equations in non-cylindrical domains was discussed. It is different from past papers, as we consider boundary conditions for more complex cases.
Lizhi Cui, Jing Lu
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Magnetic Configurations in Modulated Cylindrical Nanowires
Nanomaterials, 2021 Cylindrical magnetic nanowires show great potential for 3D applications such as magnetic recording, shift registers, and logic gates, as well as in sensing architectures or biomedicine.
Cristina Bran +5 more
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Mathematics, 2023 In this paper, by applying the Hilbert Uniqueness Method in a non-cylindrical domain, we prove the exact null controllability of one wave equation with a moving boundary.
Lizhi Cui, Jing Lu
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Solution of the boundary value problem of heat conduction in a cone [PDF]
Opuscula Mathematica, 2022 In the paper we consider the boundary value problem of heat conduction in a non-cylindrical domain, which is an inverted cone, i.e. in the domain degenerating into a point at the initial moment of time.
Murat Ramazanov +2 more
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Pre-stack elastic reverse time migration in tunnels based on cylindrical coordinates
Journal of Rock Mechanics and Geotechnical Engineering, 2022 Seismic forward-prospecting in tunnels is an important step to ensure excavation safety. Nowadays, most advanced imaging techniques in seismic exploration involve calculating the solution of elastic wave equation in a certain coordinate system.
Yuxiao Ren +4 more
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Results in Physics, 2020 An isogeometric numerical procedure based on non-uniform rational B-splines is applied to solve the free vibration of carbon nanotubes reinforced and functionally graded material sector cylindrical shells.
Yantao Zhang +4 more
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Far-field ultrasonic imaging using hyperlenses
Scientific Reports, 2022 Hyperlenses for ultrasonic imaging in nondestructive evaluation and non-invasive diagnostics have not been widely discussed, likely due to the lack of understanding on their performance, as well as challenges with reception of the elastic wavefield past ...
Mohamed Subair Syed Akbar Ali +1 more
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A 1D Reduced-Order Model (ROM) for a Novel Latent Thermal Energy Storage System
Energies, 2022 Phase change material (PCM)-based thermal energy storage (TES) systems are widely used for repeated intermittent heating and cooling applications. However, such systems typically face some challenges due to the low thermal conductivity and expensive ...
Gargi Kailkhura +3 more
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Microwave Tomography With LSTM-Based Processing of the Scattered Field
IEEE Open Journal of Antennas and Propagation, 2021 The quantitative inspection of unknown targets or bodies by means of microwave tomography requires a proper modeling of the field scattered by the structures under test, which in turn depends on several factors related to the adopted antennas and ...
Alessandro Fedeli
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