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Boost power factor correction circuits
Conference Record Southcon, 1994In this paper, we present two modified boost converter topologies to be used as power factor correction circuits. Zero-voltage switching and proper transformer-core resetting are achieved utilizing the parasitic capacitance of the switch and the magnetization inductance of the transformer. Steady state analysis for the two circuits is given.
A. Khan, I. Batarseh, K. Siri, J. Elias
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AdaMF:Adaptive Boosting Matrix Factorization for Recommender System
2014Matrix Factorization (MF) is one of the most popular approaches for recommender systems. Existing MF-based recommendation approaches mainly focus on the prediction of the users’ ratings on unknown items. The performance is usually evaluated by the metric Root Mean Square Error (RMSE).
Yanghao Wang +2 more
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Modeling of the high-power-factor discontinuous boost rectifiers
IEEE Transactions on Industrial Electronics, 1999This paper presents a modeling approach to obtain a small-signal model for a single-switch single-phase and three-phase discontinuous boost high-power-factor rectifiers. Such converters present nonlinear characteristics, and an approximation of them is used to derive the models.
Domingos Sávio Lyrio Simonetti +2 more
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Digital Literacy as a Boost Factor in Employability of Students
2016Digital literacy is an important and evolving concept having influence on the status of current and future work force as the labor market is being transformed globally by implementation of digital technology. The existing jobs are being redefined and new jobs are being created presenting new demands for updated ICT related knowledge and skills often ...
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Boosting attribute recognition with latent topics by matrix factorization
Journal of the Association for Information Science and Technology, 2017Attribute‐based approaches have recently attracted much attention in visual recognition tasks. These approaches describe images by using semantic attributes as the mid‐level feature. However, low recognition accuracy becomes the biggest barrier that limits their practical applications.
Zhuo Su 0001 +3 more
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Content-boosted matrix factorization for recommender systems
Proceedings of the fifth ACM conference on Recommender systems, 2011The Netflix prize has rejuvenated a widespread interest in the matrix factorization approach for collaborative filtering. We describe a simple algorithm for incorporating content information directly into this approach. We present experimental evidence using recipe data to show that this not only improves recommendation accuracy but also provides ...
Peter Forbes, Mu Zhu
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Control of unity power factor boost converter
Proceedings of MELECON '94. Mediterranean Electrotechnical Conference, 2002Owing to the growing concern regarding harmonic pollution in power distribution systems, and the adoption of standards such as IEC 555-2, there is a need for power supplies whose AC line currents are low in harmonic content and have power factor close to unity.
D. Rutar, K. Jazernik
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Isolated boost circuit for power factor correction
Proceedings Eighth Annual Applied Power Electronics Conference and Exposition,, 2002To provide a 48 volt DC bus for distributed power systems, AC-DC power converters with high power factor and isolation are required. Instead of using a conventional two stage scheme which has a boost front end followed by a DC-DC converter, a boost derived topology is chosen to achieve high power factor, isolation, and voltage step down.
E.X. Yang, Y. Jiang, G. Hua, F.C. Lee
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Boosting quality factor of resonant sensors in fluids
Applied Physics ReviewsMicro-mechanical resonators are widely used in modern sensing technology due to their high-quality factor (Q), enabling sensitive detection of various stimuli. However, the performance of these resonators in fluid environments is limited by significant viscous and acoustic radiation losses that reduce their Q.
Sri Harsha Paladugu +5 more
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MCED Blood Test Boosts Cancer Detection in Symptomatic Patients
Ca-A Cancer Journal for Clinicians, 2023Mike Fillon
exaly