Results 91 to 100 of about 2,348 (218)

Optimization of microstructure for HRE-free Nd-Fe-B magnets with improved properties

Journal of Materials Research and Technology
In this work, we successfully prepared heavy rare earth (HRE)-free Nd-Fe-B sintered magnets with improved coercivity (Hcj) and remanence (Br) by precisely controlling the grain size and optimizing the grain boundaries (GBs).
Yuxin Zhao, Rui Han, Meng Zheng, Xun Duan, Xiaoning Shi, Xianjun Hu, Hongsheng Chen, Dong Zhou, Shengzhi Dong, Wei Li   +9 more
doaj   +1 more source

First Order Reversal Curve Analysis on Superconductors

, 2023
The magnetometric technique of First Order Reversal Curve (FORC) analysis, applicable to hysteretic systems, is introduced to the study of superconducting samples. Some typical superconducting structures in FORC diagram are identified, and the reversible
Di Lascio, E. R.
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Analysis and synthesis of fractional order repetitive control for power converters

, 2015
Repetitive control is widely employed in power converters due to its zero-error compensation of periodic signals. However, conventional repetitive control is sensitive to frequency variations of the periodic signals.
Wood, Alan, Zhou, Keliang, Watson, Neville, Nazir, Rabia   +3 more
core   +1 more source

Modelagem e otimização de transformadores levando em conta sua vida útil [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2013.O estudo dos transformadores é assunto de diversos trabalhos científicos. Utiliza-se muito o método
Ries, Lisandra Kittel
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Environmental magnetic applications of first-order reversal curve diagram analysis

, 2019
This thesis describes a new method of deconvolving the bulk magnetic signal based on principal component analysis (PCA) of first-order reversal curve (FORC) diagrams. Magnetic records are crucial for the understanding of paleoclimate, and are a source of

core   +1 more source

Harnessing Bacillus thuringiensis and Bacillus cereus for Effective Biodegradation of Endocrine Disruptor 4-Nonylphenol

Microbiology Research
4-Nonylphenol (4-NP), an important fine chemical precursor, can cause endocrine disruption, resist natural degradation, and bioconcentrate. Biodegradation is an effective and environmentally sustainable approach to its remediation.
Lian Yang, Fanglian Lu, Deqin Luo, Ranran Dong   +3 more
doaj   +1 more source

Desenvolvimento de uma ferramenta para análise estática de mecanismos e robôs utilizando o Método de Davies [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2013.O uso de ferramentas computacionais de simulação em robótica vem crescendo, como por exemplo, em ...
Reis, Marcos Goulart
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Magnetic unmixing of first‐order reversal curve diagrams using principal component analysis

, 2015
We describe a quantitative magnetic unmixing method based on principal component analysis (PCA) of first‐order reversal curve (FORC) diagrams. For PCA, we resample FORC distributions on grids that capture diagnostic signatures of single‐domain (SD ...
Yuting Li, Hodell, David A., Channell, James E. T., Richard J. Harrison, Lascu, Ioan, James E. T. Channell, Muraszko, Joy R., David A. Hodell, Piotrowski, Alexander M., Ioan Lascu, Alexander M. Piotrowski, Harrison, Richard J., Li, Yuting, Joy R. Muraszko   +13 more
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Baseline intestinal microbiota composition influences response to a real-world dietary fiber intervention

npj Biofilms and Microbiomes
The intestinal microbiota is shaped by fiber-rich ingredients, such as unripe banana flour (UBF), high in resistant starch (RS). We investigated the effects of RS-rich UBF and inulin on gut microbiota and intestinal function in a double-blind, randomized,
Fabiana A. Hoffmann Sardá, Eliana B. Giuntini, Aline Oliveira, Gabriela S. Souza, Samira B. R. Prado, Carla R. Taddei, Carmen C. Tadini, Kyle Bittinger, Frederic D. Bushman, Elizabete W. Menezes, Christian Hoffmann   +10 more
doaj   +1 more source

Valuation of Exchangeable Convertible Bonds [PDF]

This paper provides a structural valuation model for exchangeable convertible bonds, since such bonds are widespread by now. The model is solved through the Hopscotch finite difference method.
Marco Realdon
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