شهد العالم مع بداية القرن الحادي والعشرين تدشين مرحلة جديدة من التطور شملت مختلف الميادين لاسيما في مجال التطورات العلمية والثورة المعلوماتية.. كما إن مسار الديمقراطية في بعض دول العالم يصبح سالكا خاصة في تركيا, فمنذ اواسط الثمانينيات من القرن الماضي فتح المجال السياسي امام قوى كانت مسحوقة ومهمشة, ويكاد ان لا يكون لها وجود في الحياة السياسية للنزول الى ساحة العمل السياسي اسوة ببقية القوى الفاعلية في المجتمع التركي, وان كانت الديمقراطية قد اثبتت هشاشتها في تركيا, في ذلك الحين لان الجيش التركي هو الحارس التقليدي للعلمانية قد جعل نفسه قيما على الحياة السياسية في البلاد. وفي عقد التسعينات من القرن الماضي استثمر التيار الاسلامي في تركيا هذا الجو فتوسع في اطروحاته الفكرية واعماله الاقتصادية والاجتماعية وقام بمد شبكة من العلاقات والنشاطات مستغلا الضعف الذي دب في المؤسسة العسكرية والجماعات العلمانية بعد ان تراخت قبضت الاولى نتيجة للشروط التي طالبت بها المجموعة الاوربية كخطوة لدخول تركيا المحفل الاوربي, فيما استخدمت الحكومة التركية الاسلام لاستيعاب الاطروحات اليسارية والتخفيف من غلواء واثار المطالبات القومية للاكراد والارمن وغيرهم من القوميات والاقليات في البلاد, وقد نجح في استثمار هذا التوجه زعيم التيار الاسلامي نجم الدين اربكان الذي حصل حزبه (حزب الرفاه) في عدد من الانتخابات على عدد من الاصوات اهلته للدخول الى البرلمان ومن ثم المشاركة في تشكيل الحكومة, مناصفة مع حزب الطريق القويم, وبعد حل حزب الرفاه من قبل السلطات التركية عام 1997. عاد التيار الاسلامي وجدد نشاطه لكن هذه المرة بصورة اكثر فاعلية, من خلال حزب العدالة والتنمية الذي انبثق عن حزب الرفاه ومجموعات من احزاب اخرى غير اسلامية وفئات شبابية مؤثرة لم ترتبط سابقا باية جهة حزبية . وتأسس في عام 2001 بزعامة رجب طيب اردوغان الابن الروحي لزعيم التيار الاسلامي في تركيا نجم الدين اربكان ..
New Fe(II),Co(II),Ni(II),Cu(II) and Zn(II) Schiff base complexes which have the molar ratio 2:1 metal to ligand of the general formula [M2( L) X4] (where L=bis(2-methyl furfuraldene)-4-4`-methylene bis(cyclo-hexylamine) ) were prepared by the reaction of the metal salts with the ligand of Schiff base derived from the condensation of 2:1 molar ratio of 2-acetyl furan and 4-4`-methylene bis (cyclohexylamine). The complexes were characterized by elemental analysis using atomic absorption spectrophotometer ,molar conductance measurements, infrared, electronic spectra,and magnetic susceptibility measurement. These studies revealed binuclear omplexes. The metal(II) ion in these complexes have four coordination sites giving the most ex
... Show MoreAdsorption of lead ions from wastewater by native agricultural waste, precisely tea waste. After the activation and carbonization of tea waste, there was a substantial improvement in surface area and other physical characteristics which include density, bulk density, and porosity. FTIR analysis indicates that the functional groups in tea waste adsorbent are aromatic and carboxylic. It can be concluded that the tea waste could be a good sorbent for the removal of Lead ions from wastewater. Different dosages of the adsorbents were used in the batch studies. A random series of experiments indicated a removal degree efficiency of lead reaching (95 %) at 5 ppm optimum concentration, with adsorbents R2 =97.75% for tea. Three mo
... Show MoreIncorporating the LiDAR sensor in the most recent Apple devices represents a substantial development in 3D mapping technology. Meanwhile, Apple's Lidar is still a new sensor. Therefore, this article reviews the potential uses of the Apple Lidar sensor in various fields, including engineering and construction, focusing on indoor and outdoor as-built 3D mapping and cultural heritage conservation. The affordable cost and shorter observation times compared to traditional surveying and other remote sensing techniques make the Apple Lidar an attractive choice among scholars and professionals. This article highlights the need for continued research on the Apple LiDAR sensor technology while discussing its specifications and limitations. A
... Show MoreThe present study focuses on synthesizing solar selective absorber thin films, combining nanostructured, binary transition metal spinel features and a composite oxide of Co and Ni. Single-layered designs of crystalline spinel-type oxides using a facile, easy and relatively cost-effective wet chemical spray pyrolysis method were prepared with a crystalline structure of MxCo3−xO4. The role of the annealing temperature on the solar selective performance of nickel-cobalt oxide thin films (∼725 ± 20 nm thick) was investigated. XRD analysis confirmed the formation of high crystalline quality thin films with a crystallite si
In this work Laser wireless video communication system using intensity modualtion direct
detection IM/DD over a 1 km range between transmitter and receiver is experimentally investigated and
demonstrated. Beam expander and beam collimeter were implemented to collimete laser beam at the
transmitter and focus this beam at the receiver respectively. The results show that IM/DD communication
sysatem using laser diode is quite attractive for transmitting video signal. In this work signal to noise
ratio (S/N) higher than 20 dB is achieved in this work.
In this study, a three-dimensional finite element analysis using ANSYS 12.1 program had been employed to simulate simply supported reinforced concrete (RC) T-beams with multiple web circular openings subjected to an impact loading. Three design parameters were considered, including size, location and number of the web openings. Twelve models of simply supported RC T-beams were subjected to one point of transient (impact) loading at mid span. Beams were simulated and analysis results were obtained in terms of mid span deflection-time histories and compared with the results of the solid reference one. The maximum mid span deflection is an important index for evaluating damage levels of the RC beams subjected to impact loading. Three experi
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