نتایج جستجو برای: کنترل کننده مقاوم htc

تعداد نتایج: 157044  

ژورنال: :مهندسی و مدیریت انرژی 0
سید عباس طاهر seyed abbas taher 6 km ravand road. university of kashanکاشان-کیلومتَر 6 جاده راوند شهاب الدین اکبری shahabedin akbari 6 km ravand road. university of kashanکاشان-کیلومتَر 6 جاده راوند سید محمد حسینی seyed mohammad hosseini 6 km ravand road. university of kashanکاشان-کیلومتَر 6 جاده راوند

در این مقاله، به طراحی کنترل کننده مقاوم برای ژنراتورهای القایی در نیروگاه های بادی با استفاده از روش مقادیر تکین ساختاریافته پرداخته شده است. کنترل کننده برای statcom و کنترل زاویه متغیر شیب پره ها (زاویه پیچ پره ها) به منظور دستیابی به ولتاژ و توان مکانیکی مطلوب طراحی شده است. نتایج نشان می دهد که این کنترل کننده به طور رضایت بخشی، میرایی سیستم حلقه بسته را بهبود می بخشد. در این مطالعه، همچنی...

Journal: :Journal of rehabilitation research and development 2013
Hiroo Matsuse Naoto Shiba Yoshio Takano Shin Yamada Hiroshi Ohshima Yoshihiko Tagawa

A hybrid training system (HTS) has been developed as the combined application of electrical stimulation (ES) and volitional contractions (VC), using electrically stimulated eccentric antagonist muscle contractions as a resistance to voluntary agonist muscle contractions. The purpose of the present study is to compare the metabolic cost between cycling exercise using HTS as added resistance (HTC...

Journal: :Rapid communications in mass spectrometry : RCM 2012
William M Hagopian A Hope Jahren

RATIONALE Accurate online analysis of the δ(18)O values of nitrogen-bearing organic compounds is of interest to several emergent fields, including ecology, forensics and paleontology. During online analysis, high-temperature conversion (HTC) of nitrogen-bearing organics produces N(2) gas which creates isobaric interference with the isotopic measurement. Specifically, N(2) reacts with trace amou...

2016
Sphiwe Madiba Mathildah Mokgatle

Background. A formative assessment of the implementation of HIV testing and counseling (HTC) at school showed high acceptability and willingness to test among learners. However, the success of the proposed HTC depends on the support and acceptability of key stakeholders, including the parents. The aim of the study was to assess the opinions and acceptability of the implementation of HTC at scho...

2015
Alice Osuji Jennifer R. Pharr Uche Nwokoro Anulika Ike Christiana Ali Ogheneaga Ejiro John Osuyali Michael Obiefune Kevin Fiscella Echezona E. Ezeanolue

Nigeria is second in the world for the number of people with HIV and has a high rate of mother-to-child transmission (MTCT). Over 60% of births in Nigeria occur outside of health care facilities, and because of this, Traditional Birth Attendants (TBAs) play a significant role in maternal and child health. It is important that TBAs be knowledgeable about HIV prevention. The purpose of this study...

2015
Sphiwe Madiba Mathilda Mokgatle

BACKGROUND The proposal by the South African Health Ministry to implement HIV testing and counselling (HTC) at schools in 2011 generated debates about the appropriateness of such testing. However, the debate has been between the Ministries of Education and Health, with little considerations of the students. The main aim of the study was to assess the students' opinions and uptake of HIV testing...

Journal: :Nucleic acids research 1991
S Faber T Ip D Granner R Chalkley

We have identified DNA elements in the phosphoenolpyruvate carboxykinase (PEPCK) gene promoter which are bound 'in vivo' by proteins under conditions of basal level gene expression and have evaluated several hypothesis to account for the tissue specific expression of the gene. In vitro DNase I footprinting demonstrated that factors which bind to basal expression elements of the PEPCK promoter, ...

Journal: :Frontiers in microbiology 2016
Dilfuza Egamberdieva Stephan Wirth Undine Behrendt Elsayed F. AbdAllah Gabriele Berg

The application of biochar to soil is considered to have the potential for long-term soil carbon sequestration, as well as for improving plant growth and suppressing soil pathogens. In our study we evaluated the effect of biochar on the plant growth of soybeans, as well as on the community composition of root-associated bacteria with plant growth promoting traits. Two types of biochar, namely, ...

2015
Jens Stepan Florian Hladky Andrés Uribe Florian Holsboer Mathias V. Schmidt Matthias Eder

Antidepressants (ADs) are used as first-line treatment for most stress-related psychiatric disorders. The alterations in brain circuit dynamics that can arise from stress exposure and underlie therapeutic actions of ADs remain, however, poorly understood. Here, enabled by a recently developed voltage-sensitive dye imaging (VSDI) assay in mouse brain slices, we examined the impact of chronic str...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

چکیده در این پایان نامه ، ابتدا به مطالعه و بررسی مدلسازی و شبیه ساز بالگرد می پردازیم . از بین مدل های موجود ، یک مدل آزمایشگاهی کوچک را در نظر می گیریم . یک قانون کنترل غیر خطی با هدف حذف دینامیک سیستم و جایگزین نمودن دینامیک خطا را بکار می بریم ، سپس یک کنترل کننده h? غیرخطی را برای دفع اغتشاش پیشنهاد می کنیم . در ادامه ، یک حل بفرم pid برای مساله کنترل h? ارائه خواهیم داد.

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