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Vector Magnetization Model.

The George Washington University.

Vector Magnetization Model.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Vector Magnetization Model./
作者:	Jamali, Ali.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	72 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-08(E), Section: B.
Contained By:	Dissertation Abstracts International79-08B(E).
標題:	Electrical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10749356
ISBN:	9780355806700

Vector Magnetization Model.
Jamali, Ali.

Vector Magnetization Model. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 72 p.

Source: Dissertation Abstracts International, Volume: 79-08(E), Section: B.

Thesis (D.Engr.)--The George Washington University, 2018.

In hysteresis modeling, we predict magnetization as a function of the applied field and magnetic state. Most hysteresis models are scalar. A scalar model assumes that only the magnitude of the applied field changes and therefore the direction of the magnetization is always along the direction of the applied filed. In this dissertation, I assumed the magnitude of the applied field is constant and we rotate the magnetization. I developed a vector model that can successfully predict the direction of the magnetization. The idea of decomposing magnetization into reversible and irreversible components is introduced in chapter 2 of the dissertation. In chapter 3, I developed the model for uniaxial media by using Stoner-Wohlfarth model for the direction of reversible component. This has been done in chapter 4 by assuming anisotropy field is parallel with easy axis as another variation of the model. These two has been compared in chapter 4. In chapter 5, I generalized the idea to the cubic particles. I also showed and proved a graphical visualization of the Stoner-Wohlfarth model. Finally, in chapter 6, I showed how we can improve the model by taking averages over orientation of hysteron's easy axes.

ISBN: 9780355806700Subjects--Topical Terms:

596380
Electrical engineering.

Vector Magnetization Model.
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300 $a 72 p.
500 $a Source: Dissertation Abstracts International, Volume: 79-08(E), Section: B.
500 $a Adviser: Edward Della Torre.
502 $a Thesis (D.Engr.)--The George Washington University, 2018.
520 $a In hysteresis modeling, we predict magnetization as a function of the applied field and magnetic state. Most hysteresis models are scalar. A scalar model assumes that only the magnitude of the applied field changes and therefore the direction of the magnetization is always along the direction of the applied filed. In this dissertation, I assumed the magnitude of the applied field is constant and we rotate the magnetization. I developed a vector model that can successfully predict the direction of the magnetization. The idea of decomposing magnetization into reversible and irreversible components is introduced in chapter 2 of the dissertation. In chapter 3, I developed the model for uniaxial media by using Stoner-Wohlfarth model for the direction of reversible component. This has been done in chapter 4 by assuming anisotropy field is parallel with easy axis as another variation of the model. These two has been compared in chapter 4. In chapter 5, I generalized the idea to the cubic particles. I also showed and proved a graphical visualization of the Stoner-Wohlfarth model. Finally, in chapter 6, I showed how we can improve the model by taking averages over orientation of hysteron's easy axes.
590 $a School code: 0075.
650 4 $a Electrical engineering. $3 596380
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710 2 $a The George Washington University. $b Electrical Engineering. $3 1178907
773 0 $t Dissertation Abstracts International $g 79-08B(E).
790 $a 0075
791 $a D.Engr.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10749356

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