Results 11 to 20 of about 885,382 (297)
Analysis of Harmonic Instability of Tokamak Power System Caused by Rectifier Transformer Bias
南方能源建设, 2022 [Introduction] The paper aims to effectively suppress the disturbance of non characteristic harmonics to the power grid in the tokamak power supply system, the paper studies the mechanism of low-frequency harmonics in the tokamak power supply system ...
Jiansheng WANG +3 more
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Transmitting CMUT Arrays without a DC Bias [PDF]
2019 IEEE International Ultrasonics Symposium (IUS), 2019 This study focuses on design, simulation, fabrication and measurement of transmitting CMUT arrays with unbiased mode of operation. We presented a design procedure considering the radiation pattern, Rayleigh distance and the parameters of the large signal equivalent circuit, which can be applied for different operation frequencies and applications ...
Enhoş, Kerem +4 more
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Self-Test and Self-Calibration of Digital Closed-Loop Accelerometers
Sensors, 2022 For accelerometers targeted in inertial navigation field, the DC bias error is the most destructive system error, affecting the final precision of long-term dead reckoning.
Zhiyuan Sun, Miao Wang
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Energy Reports, 2022 When a transformer is in the DC bias state, a series of consequences will occur. Mainly including excitation current distortion, losses increase, hot spot temperature rise and vibration and noise increase, these consequences are not conducive to the safe
Yidan Hu, Junhao Li
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Applied Sciences, 2020 The DC bias of transformers as a result of geomagnetically induced currents (GIC), monopole operation of high voltage direct current (HVDC) transmission and the increasing power electronic devices in the power grid, creates a high magnitude of ...
Bing Li +3 more
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Dielectric behavior and phase transition in [111]-oriented PIN–PMN–PT single crystals under dc bias [PDF]
Journal of Advanced Dielectrics, 2014 Temperature and electric field dependences of the dielectric behavior and phase transition for [111]-oriented 0.23PIN–0.52PMN–0.25PT (PIN-PMN–0.25PT) and 0.24PIN–0.43PMN–0.33PT (PIN–PMN–0.33PT) single crystals were investigated over a temperature range ...
Yuhui Wan +6 more
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Stationary Hamiltonian transport with dc bias [PDF]
Europhysics Letters (EPL), 2006 The dynamics of a particle in a symmetric periodic potential under the influence of a time-periodic field is characterized by a mixed phase space with regular and chaotic components. An additional external dc bias transforms the chaotic manifold into a domain with unbounded acceleration.
Denisov, Sergey Vadimovich +2 more
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IEEE Access, 2021 Loss and temperature increase due to DC bias occurring in power transformers may lead to damage and reduced lifespan. To study the influence of different levels of DC bias on the temperature rise in transformer structural components, 0, 8, and 16 A DC ...
Mingyang Li +4 more
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Efficient spin injection into graphene through trilayer hBN tunnel barriers [PDF]
, 2018 We characterize the spin injection into bilayer graphene fully encapsulated in hBN using trilayer (3L) hexagonal boron nitride (hBN) tunnel barriers. As a function of the DC bias, the differential spin injection polarization is found to rise up to -60 ...
Gurram, Mallikajurna +3 more
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Pulsed-Dc Bias Magnetron Sputtered Tib2 Ceramic Coating
International Journal of Refractory Metals and Hard Materials, 2023 Titanium diboride, TiB2, is well known as a ceramic material with a hexagonal structure which presents various attractive properties, such as high hardness and excellent corrosion, thermal oxidation, and wear resistance. However, one drawback of TiB2 coatings is their poor adhesion to substrate materials due to high compressive residual stress after ...
Bulbul, Ferhat, Efeoglu, Ihsan
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