نتایج جستجو برای: درایو dtc
تعداد نتایج: 2242 فیلتر نتایج به سال:
Direct Torque Control using Multilevel Inverter (DTC-MLI) strategy has attracted a great deal of interest in recent years, in the field of high power induction machines or permanent magnet machines drives applications for high dynamic response. This proposal combines the advantages of the multilevel inverter with direct torque controlled based schemes. Numerous efforts have been accomplished ...
بازدهی بالا، چگالی گشتاور پایدار توام با پاسخ سریع گشتاور در محدوده وسیعی از سرعت، موجب برتری موتورهای سنکرون مغناطیس دائم (pmsm) در مقایسه با دیگر موتورها شده است. اگرچه، دستیابی به هر یک از این مزایا طراحی مناسب کنترلر و درایو موتور را طلب می نماید، اما با پیشرفت ادوات الکترونیک قدرت و کنترل دیجیتال این امر امکان پذیر گردیده است. تا کنون تحقیقات وسیعی به منظور کاهش ریپل گشتاور و هارمونیک در p...
PURPOSE/OBJECTIVES To review the phenomenon of direct-to-consumer (DTC) advertising of prescription medications in the media, with an overview of pertinent studies in the literature regarding patients' and healthcare professionals' perspectives on DTC advertising. DATA SOURCES Journal articles, media, and clinical experience. DATA SYNTHESIS DTC advertising of prescription medications is ext...
Advanced differentiated thyroid cancer (DTC), defined by clinical characteristics including gross extrathyroidal invasion, distant metastases, radioiodine (RAI) resistance, and avidity for 18-fluorodeoxyglucose (positron emission tomography-positive), is found in approximately 10-20% of patients with DTC. Standard therapy (surgery, RAI, TSH suppression with levothyroxine) is ineffective for man...
The year of 1997 witnessed an important regulatory change in direct-to-consumer (DTC) advertising of ethical drugs. For the first time, the Food and Drug Administration (FDA) permitted brand-specific DTC ads on TV without a ”brief summary” of comprehensive risk information. This led to a three-fold growth of DTC advertising expenditure in four years, followed by an intensive debate about the ef...
Background: X-ray repair cross-complementing group 1 (XRCC1) gene is a DNA repair gene and its non-synonymous single nucleotide polymorphisms (SNP) may influence DNA repair capacity which has been considered as a modifying risk factor for cancer development. Methods: A case-control study was conducted to investigate impact of three frequently studied polymorphisms (Arg194Trp, Arg280His and Arg3...
Direct Torque Control with Multilevel Inverter (DTC-MLI) has emerged recently in high dynamics AC drives fields for induction machines or permanent magnet machines application. In this paper, a review on a variety of techniques and concepts of direct torque control of multilevel inverter-fed induction machines is presented. The techniques and concept involved are classified as follows: Look-up ...
BACKGROUND/AIMS DNA HRR pathway and BER pathway play vital roles in differentiated thyroid cancer (DTC) development, thus we supposed that polymorphisms of XRCC1, XRCC2, XRCC3 DNA repair genes are associated with thyroid cancer risk and progression. METHODS We searched the NCBI database for relevant literatures to determine eight SNPs to be included in our study (XRCC1: rs25487, rs25489, rs17...
introduction: differentiated thyroid carcinoma (dtc) is associated with excellent prognosis and high survival rates. this study was conducted to evaluate the influence of baseline and treatment-related factors on the health related quality of life (qol) in cured dtc. methods:this study was an analytic cross-sectional study on radio-iodine (rai) treated dtc patients during 2011-2012. the data on...
INTRODUCTION Differentiated thyroid carcinoma (DTC) in children presents different biological behavior in comparison to adults. Authors presents preliminary results of multicenter analysis concerning incidence, diagnostics and treatment of DTC in children. MATERIAL AND METHODS The study is a retrospective analysis of 107 pediatric patients from 14 academic centers based on the data from 2000 ...
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