نتایج جستجو برای: روش dtc

تعداد نتایج: 371462  

2017
Fatih Korkmaz

Due to advantages such as fast dynamic response, simple and robust control structure, direct torque control (DTC) is commonly used method in high performance control method for induction motors. Despite mentioned advantages, there are some chronically disadvantages with this method like high torque and current ripples, variable switching behaviour and control problems at low speed rates. On the...

2016
S. A. Nasar

In this study, direct torque control (DTC) of induction motor is evaluated based on space vector modulation (SVM).DTC is a method to control machine with utilizing torque and flux of motor controlled.Direct Torque Control (DTC) is known to produce fast response and robust control in ac adjustable speed drives. However, in the steady-state operation, notable torque, flux and current pulsations o...

2017
Wei-Jun Wei Zhen-Kui Sun Chen-Tian Shen Hong-Jun Song Xin-Yun Zhang Zhong-Ling Qiu Quan-Yong Luo

Although the prognosis of differentiated thyroid cancer (DTC) is relatively good, 30-40% of patients with distant metastases develop resistance to radioactive iodine therapy due to tumor dedifferentiation. For DTC patients harboring BRAFV600E mutation, Vemurafenib, a BRAF kinase inhibitor, has dramatically changed the therapeutic landscape, but side effects and drug resistance often lead to ter...

2013
Takashi Okubo Haruho Anma Masahiko Maekawa Takayoshi Kuroda-Sowa

The reaction of Cu(Hm-dtc)2 (H2m-dtc is azepane-1-carbodi-thioic acid), CuBr2 and methyl iso-thio-cyanate yielded the title mixed-valence nona-nuclear Cu(I)/Cu(II) compound, [Cu9Br5(C7H12NS2)5] or [Cu(I) 8Cu(II)Br5(Hm-dtc)5], encapsulating a bromide anion in the center of the Cu9Br4S10 cluster cage. The cage consists of a mononuclear Cu(II) unit [Cu(Hm-dtc)2], three μ4-bridging Hm-dtc(-) ligand...

Journal: :Annals of behavioral medicine : a publication of the Society of Behavioral Medicine 2009
Katherine T Fortenberry Jorie M Butler Jonathan Butner Cynthia A Berg Renn Upchurch Deborah J Wiebe

BACKGROUND Adolescents dealing with type 1 diabetes experience disruptions in affect and diabetes management that may influence their blood glucose. PURPOSE A daily diary format examined whether daily fluctuations in both negative and positive affect were associated with adolescents' perceived diabetes task competence (DTC) and blood glucose, and whether perceived DTC mediated the relationshi...

2013
Huaqiang ZHANG Tong YAO Shijun LUO

This paper presents an improved direct torque control (DTC) algorithm as compared to a traditional DTC scheme. In the traditional scheme, a pair of hysteresis comparators is used to control motor stator flux and electromagnetic torque. This causes a variable switching frequency which results in a high flux and torque ripples. To mitigate these issues, an improved DTC algorithm based on a double...

       چکیده : در این مقاله، روشی برای کنترل شار مرجع در سرعت ها و بارهای مختلف برای ماشین سنکرون مغناطیس دائم داخلی (IPMSM) ارائه می ­ گردد. از روش کنترل مستقیم گشتاور (DTC) بر اساس مدولاسیون بردار فضایی (SVM) برای کنترل (IPMSM) استفاده می ­ شود. این روش از دو کنترل کننده تناسبی- انتگرالی (PI) برای کنترل شار استاتور و گشتاور استفاده می‌کند. همچنین، یک کنترل کننده فازی به منظور بهبود عملکرد دین...

2015
Marjory Alana Marcello Antonio Ramos Calixto Jacqueline Fatima Martins de Almeida Mariana Bonjiorno Martins Lucas Leite Cunha Camila Ayume Amano Cavalari Elba C S Etchebehere Ligia Vera Montalli da Assumpção Bruno Geloneze Andre Lopes Carvalho Laura Sterian Ward

Purpose. To understand the role of polymorphisms in the LEP (rs7799039 and rs2167270) and LEPR (rs1137101 and rs1137100) genes in DTC susceptibility and their effect on leptin levels. Methods. We studied 153 patients with DTC and 234 controls through TaqMan SNP Genotyping and ELISA, comparing these data to the clinicopathological data of patients with DTC. Results. Patients with AA genotype of ...

2014
S ALLIRANI V JAGANNATHAN

The aim of this paper is to review the origin and developments of direct torque control (DTC), an advanced control technique of induction motor drives yielding superior performance. The direct torque control is one of the excellent control strategies available for torque control of induction machine. It is considered as an alternative to field oriented control (FOC) technique. The DTC is charac...

2012
Susana Pastor Abdelmounaim Akdi Eddy R González Juan Castell Josefina Biarnés Ricard Marcos Antonia Velázquez

Thyroid hormone receptors, THRA and THRB, together with the TSH receptor, TSHR, are key regulators of thyroid function. Alterations in the genes of these receptors (THRA, THRB and TSHR) have been related to thyroid diseases, including thyroid cancer. Moreover, there is evidence suggesting that predisposition to differentiated thyroid cancer (DTC) is related to common genetic variants with low p...

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