نتایج جستجو برای: راکتیو نارنجی 122

تعداد نتایج: 16944  

خلیل ولیپور علی قاسمی,

برنامه‌ریزی توان راکتیو در شبکه قدرت به منظور تنظیم پروفیل ولتاژ شبکه، کم کردن نوسانات ولتاژ و کمینه‌سازی تلفات به عنوان یک مساله غیرخطی بهینه‎سازی مورد توجه محققیق بوده است. در این مقاله برای دسترسی به این مهم از الگوریتم چند منظوره جستجوی گرانشی با در نظر گرفتن سه تابع هدف مختلف بهره گرفته شده است. مساله برنامه‎ریزی توان راکتیو یک مساله پیچیده در مهندسی می‌باشد. علت این امر به خاطر داشتن تواب...

قهرمانی , سودابه , لشکرآرا , افشین ,

اساساً مسئله تأمین توان راکتیو بهینه در شبکه قدرت توسط تپ چنجر تحت بار، ظرفیت بهینه‌ی خازن، ولتاژ ژنراتورهای تحت بار ثابت و یکنواخت کنترل می‌شود. در این مقاله یک روش بهینه‌سازی چند هدفه برای مسئله پخش بار‌راکتیو بهینه با استفاده از روش محدودیت ε برای فرمول‌بندی برنامه‌ریزی ریاضی وار چند‌هدفه ارائه شده است. توابع هدف مدل پیشنهادی شامل بهینه کردن هزینه سوخت ژنراتورها، تلفات توان اکتیو و بارپذیری س...

2013
Bahubali Gane Vishnu Bhat

We have studied risk factors for perinatal asphyxia among babies fulfilling the inclusion criteria and compared them with matched controls. Maternal or antepartum factors included were maternal age, gestational age, hypertension, diabetes mellitus and antenatal clinic (ANC) visits less than 3. Intrapartum factors included malpresentation, mode of delivery, meconium stained amniotic fluid, Chori...

2017
Guohua Lou Ying Yang Feifei Liu Bingjue Ye Zhi Chen Min Zheng Yanning Liu

Mesenchymal stem cell (MSC) transplantation alone may be insufficient for treatment of liver fibrosis because of complicated histopathological changes in the liver. Given that miR-122 plays an essential role in liver fibrosis by negatively regulating the proliferation and transactivation of hepatic stellate cells (HSCs), this study investigated whether miR-122 modification can improve the thera...

2018
Mert Ulaş Barut Engin Yildirim Mehmet Kahraman Murat Bozkurt Necat Imirzalioğlu Ayhan Kubar Eray Çalişkan Sibel Sak Tarık Aksu

BACKGROUND In the present study we retrospectively evaluated the results of outpatients who had an HPV analysis, and present objective evidence for the administration of preventive inoculation in our area. MATERIAL AND METHODS We retrospectively reviewed 532 outpatients who visited a single center between 2012 and 2016 and had an HPV infection analysis. The criteria for inclusion of patients wi...

2007
David A. Vasseur Ursula Gaedke

By combining expressions A.1 and A.2 it becomes clear that the variance ratio is equal to 1 when the sum of population covariances is zero (population dynamics are independent), whereas values greater (less) than 1 indicate positive (negative) covariances and thus synchronous (compensatory) dynamics amongst populations. The variance ratio reflects the cumulative population dynamics rather than ...

Journal: :The Journal of clinical endocrinology and metabolism 2001
E Shane

Parathyroid carcinoma is an uncommon cause of PTHdependent hypercalcemia. The collective published experience with this rare neoplasm has provided a distinctive clinical profile that differs in a number of respects from that of benign primary hyperparathyroidism (1–3). The distinguishing features of parathyroid carcinoma assume even greater prominence when viewed within the current context of p...

2014
Benjamin Israelow Gavriel Mullokandov Judith Agudo Marion Sourisseau Ali Bashir Andres Y. Maldonado Arvin C. Dar Brian D. Brown Matthew J. Evans

Hepatitis C virus (HCV) replication is dependent on a liver-specific microRNA (miRNA), miR-122. A recent clinical trial reported that transient inhibition of miR-122 reduced viral titres in HCV-infected patients. Here we set out to better understand how miR-122 inhibition influences HCV replication over time. Unexpectedly, we observed the emergence of an HCV variant that is resistant to miR-122...

2010
Qiu Long-Hua

Follicular dendritic cell sarcoma is an extremely rare malignant neoplasm arising from follicular dendritic cells, and this was fi rst described in 1986 by Monda et al. (1). About 60% of the cases occur in lymph nodes such as the cervical, axillary and mediastinal lymph nodes, while a wide variety of extranodal sites may also be affected, including the tonsil, spleen, liver, gastrointestinal tr...

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