The Society of Telegraph Engineers

analysis of power in the network society

اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...

The American Society of Mechanical Engineers.

The American Society of Mechanical Engineers

s spring In some nuclear reactor containment isolation applica­ Greek tions, butterfly valves with pneumatic actuators are used to close pipelines in the event of containment p density pressure transients resulting from postulated acci­ e angular position dents. A model is developed which predicts the closure time history of such valve/actuator systems INTRODUCTION under prescribed transients. ...

Society of Tribologists and Lubrication Engineers

A multi-scale theoretical model is presented that is the first to offer quantitative agreement with experimental measurements of selfretraction and oscillation of bilayer graphene. The model integrates density-functional calculations of the energetics driving flake retraction and molecular-dynamics simulations capturing the dynamic response of laterally-offset rough surfaces. We demonstrate tha...

The Society of Naval Architects Ano Marine Engineers

Major changes in the size, shape and performance of ships will create a severe challenge to the technical skills of ship structural designer. Fortunately, the groundwork has alreadY been laid for the technology required to support him. The na~;re and quality of this technical base is discussed and gaps are identified. The serious need for closing the interface between researcher and designer is...