نتایج جستجو برای: electronic high
تعداد نتایج: 2239412 فیلتر نتایج به سال:
Electronic waste is one of the most widely used devices in today's modern world, which includes computers, monitors, mobile phones, TVs, and so on. They are growing rapidly. Most of the components used in electronic equipments contain pollutants such as cadmium, lead and zinc. Qom province is not excluded from this issue, and due to the high production of this type of waste and the limitation o...
To detect POCl3 molecule, adsorption phenomena of this molecule on the pure, Al- and Si-doped BN sheet surfaces were investigated via density functional theory (DFT) approach. The most stable adsorption complexes, including POCl3/BN (O-B), POCl3/Al-BN (O-Al), and POCl3/Si-BN (O-Si), were predicted with the adsorption energies of about -8.64, -37.01 and, -62.01 kcal mol-1, respectively. Upon the...
تا سال 1382 خورشیدی جمهوری اسلامی ایران در ارتباط با فناوری اطلاعات و سیستم های ارتباطی الکترونیک فاقد قانون بوده است. با تامل در مقررات نمونه تجارت الکترونیکِ کمیسیون سازمان ملل در خصوص حقوق تجارت بین الملل (آنسیترال) و نیز به منظور شناساییِ قانونی ارتباطات الکترونیک، قانون تجارت الکترونیک ایران در این سال به تصویب رسید. این قانون داده پیام و اسناد الکترونیک را که از طریق رسانه های الکترونیک شکل...
in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...
growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...
electronic government is a new concept that governments according to level of development implement in different ways. utilizing informational systems in business sections has created potential context for developing electronic government. customer relationship management (crm) is an important system in management that helps to develop electronic government and promote citizenship-based in org...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید