In this paper, a numerical model for fluid-structure interaction (FSI) analysis is developed for investigating the aeroelastic response of a single wind turbine blade. The Blade Element Momentum (BEM) theory was adopted to calculate the aerodynamic forces considering the effects of wind shear and tower shadow. The wind turbine blade was modeled as a rotating cantilever beam discretized using Finite Element Method (FEM) to analyze the deformation and vibration of the blade. The aeroelastic response of the blade was obtained by coupling these aerodynamic and structural models using a coupled BEM-FEM program written in MATLAB. The governing FSI equations of motion are iteratively calculated at each time step, through exchanging data between

Abstract: The increased interest in developing new photonic devices that can support high data rates, high sensitivity and fast processing capabilities for all optical communications, motivates a pre stage pulse compressor research. The pre-stage research was based on cascading single mode fiber and polarization maintaining fiber to get pulse compression with compression factor of 1.105. The demand for obtaining more précised photonic devices; this work experimentally studied the behavior of Polarization maintaining fiber PMF that is sandwiched between two cascaded singe mode fiber SMF and fiber Bragg gratings FBG. Therefore; the introduced interferometer performed hybrid interference of both Mach-Zehnder

The habitat type and food availability always influence the population size of many
organisms. Bird’s feeding pattern should be abstracted to complete avian community structure
data. The agronomy main research farm of Orissa University of Agriculture and Technology
is a well-managed multi-crop agro-ecosystem which provides a suitable ground for ecological
research. In a multi-crop farmland, the association of Barn Swallow Hirundo rustica Linnaeus,
1758, with the Indian mustard Brassica juncea (L.) Czernajew, 1859 crops have been
recorded for the first time while hovering only on this field. A flock of Barn swallows was
recorded in 32 field visits while flying continuously over the Indian mustard field after
flow

Constitutional Review of 1992 and 1996 and the role of the Party of Progress and Socialism

Background: Crown preparation of vital teeth involve the removal of a sound tooth structure, and when enamel removed this lead to exposed dentin with an   increase in the number of open dentinal tubules also the diameter of dentinal tubules will increase, furthermore lead to increase movement of fluids inside the tubules all that causes post preparation sensitivity. The aim of this study is to evaluate the effect of desensitizing by Er:Cr:YSGG laser on shear bond strength of prepared tooth and resin cement. Materials and methods: Thirty sound maxillary premolars, grouped into three groups(n=10). Group A is the control group, group B irradiated by Er:Cr:YSGG laser with (0.25 W, 20 Hz, 1

يهدف البحث الى صياغة استراتيجية اعلامية لمواجهة اعلام التنظيمات الارهابية

The main objectives of this study are to study the enhancement of the load-carrying capacity of Asymmetrical castellated beams with encasement the beams by Reactive Powder Concrete (RPC) and lacing reinforcement, the effect of the gap between top and bottom parts of Asymmetrical castellated steel beam at web post, and serviceability of the confined Asymmetrical castellated steel. This study presents two concentrated loads test results for four specimens Asymmetrical castellated beams section encasement by Reactive powder concrete (RPC) with laced reinforcement. The encasement of the Asymmetrical castellated steel beam consists of, flanges unstiffened element height was filled with RPC for each side and laced reinforced which are use

تعد الدیمقراطیة الخیار المناسب للمشكلات والأزمات التي تواجه أقطار الوطن العربي بـشكل عـام والعـراق ٕ بــشكل خــاص، فهــي لا تقــدم المعالجــات والحلــول الآنیــة لهــذه المــشكلات والأزمــات فحــسب،وانما تــضع الأطـــر والسیاقات لنمو وتطور النظام السیاسي وبناء هیكل دولة عصریة حدیثة. وفي الوقت الذي تحظى فیه الجوانب المؤسسیة بأهمیة قصوى فـي إطـار العملیـة الدیمقراطیـة، فـان غیابهـا یعمل على تشویه هذه ا

يناقش البحث ابعاد العلاقات العراقية الايرانية قبل عام 2003 وما بعدها واهم المتغيرات الداخلية ( السياسية ، الاقتصادية ، الديموغرافية ، الامنية ) والخارجية ( الاقليمة ، الدولية المؤثرة عليها وافاقها المستقبلية

إن أهميـة بحثنـا تتضـح مـن خـلال التطـرق إلى دراسـة المـذهب العسـكري في حقبـة الاتحـاد السـوفيتي السـابق وإبـراز الجوانـب الرئيسـة المتعلقـة بفلسـفة المـذهب العسـكري السـوفيتي ومضـامينه الاستراتيجية مــن جانــب، وفلســفة المــذهب العســكري الروســي لمرحلــة مــا بعــد الحــرب البــاردة والتغـيرات المهمـة الـتي طـرأت عليـه، ممـا أفـرز لنـا بطبيعـة الحـال مضـامين مـذهب عسـكري روسـي جديــد قــد يتقــا