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Dual Covariant Derivative on Time Scales
2021The covariant derivative is a kind of derivative along tangent vectors of a curve or surface. The covariant derivative has many applications in physics, kinematics, robotics, machine engineering, and other scientific areas. Additionally, a dual vector or screw-vector in the dual space is an important tool widely used in kinematic and robotic studies to
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Model-based dual-stage event-triggered control of linear system with two time scales
International Journal of Systems Science, 2020In this paper, the model-based event-triggered control is addressed for a class of linear systems with two time scales.
Xiang Ren, Fei Hao 0002
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Mixed-Time Scale Based Adaptive Mode Switching for Dual Mode SWIPT
2019 IEEE Wireless Power Transfer Conference (WPTC), 2019In this paper, we implement transmitter-oriented dual mode simultaneous wireless information and power transfer (SWIPT) system in which two types (single/multi-tone) of communication mode are adopted to achieve the benefit of each communication mode. Duty-cycling operation is introduced for low-power consuming IoT devices to be self-powered. We propose
Jong Jin Park +3 more
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1993 IEEE International Symposium on Circuits and Systems, 2002
Dual time scale systems such as /spl Delta/-/spl Sigma/ modulators, switching power converters, and phase-locked loops often take an excessive amount of computation time to simulate when using a circuit simulator and do not have sufficient accuracy when simulated with more efficient methods.
Christopher M. Wolff, Jung-hui Cheng
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Dual time scale systems such as /spl Delta/-/spl Sigma/ modulators, switching power converters, and phase-locked loops often take an excessive amount of computation time to simulate when using a circuit simulator and do not have sufficient accuracy when simulated with more efficient methods.
Christopher M. Wolff, Jung-hui Cheng
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Dual-Time Scale Photoinduced Electron Transfer from PbS Quantum Dots to a Molecular Acceptor
Journal of the American Chemical Society, 2012A combination of picosecond and microsecond transient absorption dynamics reveals the involvement of two mechanisms by which 1,4-benzoquinone (BQ) induces the decay of the excited state of PbS quantum dots (QDs): (i) electron transfer to BQ molecules adsorbed to the surfaces of PbS QDs and (ii) collisionally gated electron transfer to freely diffusing ...
Kathryn E, Knowles +2 more
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The rolling optimization strategy of CCHP system based on the electric-thermal dual time-scale
2019 Chinese Automation Congress (CAC), 2019The combined cooling, heating and power (CCHP) system, as one of the important development direction of distributed energy, has a excellent application prospect and development significance. Furthermore, the CCHP system itself is a complicated system with many kinds of energies coupling.
MengLu Pei, Bo Sun, ZhiChao Yang
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Research on dual time scale model of DC/DC chopper converter
Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering, 2021Yang Zhang +4 more
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Experimental Heat Transfer, 1998
In this work, a dual-beam measurement technique is presented to measure the short-time-scale optical properties of novel materials. It is shown that the picosecond continuum probe source obtained from nonlinear interaction with H2O/D2O is highly variable and does not permit detection of small changes in absorption /transmission spectra.
M. Cynthia Hipwell +3 more
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In this work, a dual-beam measurement technique is presented to measure the short-time-scale optical properties of novel materials. It is shown that the picosecond continuum probe source obtained from nonlinear interaction with H2O/D2O is highly variable and does not permit detection of small changes in absorption /transmission spectra.
M. Cynthia Hipwell +3 more
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Dual-time scale crystal plasticity FE model for cyclic deformation of Ti alloys
Journal of Computer-Aided Materials Design, 2007A dual-time scale finite element model is developed in this paper for simulating cyclic deformation in a Titanium alloy Ti-6242. The material is characterized by crystal plasticity constitutive relations. Modeling cyclic deformation using conventional time integration algorithms in a single time scale can be prohibitive for crystal plasticity ...
Sivom Manchiraju +2 more
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