Strong seasonal variations of horizontal and vertical positions are observed on GPS times series from stations located in Nepal, India and Tibet (China). We demonstrate that this geodetic deformation is induced by seasonal variations of continental water storage driven by the Monsoon. For this purpose, we use satellite data from the Gravity Recovery and Climate Experiment (GRACE) to determine t...

â  natural disasters are known as one the most important factors in demolition human settlement. so study of impacts of natural disasters one human settlements specially cities are an important for urban planners iran had been faced with natural disasters specific earth quake because of its geographical position (its located on world earth quake belt). some earth quakes cause many human, financ...

mechanical damagesin theprocessof harvestingandpost-harvest are the most important reason in cucurbits losses. it causes the tissue destructionand consequentfruits decay. because of difference in the mechanical strength of flesh and skin of cantaloupe, internal bruising are more usual damages with no visibility. this type of injuriesis hard to predict byanalytical methods. in this study,the mec...

EARTH is a multithreaded program execution and architecture model that hides communication and synchronization latencies through ne-grain multithreading. EARTH provides a simple synchronization mechanism: a thread is spawned when a pre-speciied number of synchronization signals are received in its synchronization slot { signaling the fact that all dependences required for its execution are sati...

electro-thermo-elastic stress analysis of piezoelectric polymeric thick-walled cylinder reinforced by boronnitride nanotubes (bnnts) subjected to electro-thermo-mechanical fields is presented in this article. the electro-thermo-elastic properties of piezoelectric fiber reinforced composite (pefrc) was studied by a modified xy micromechanical model capable of exhibiting full coupling relation be...

Discrete Global Grid has been widely used as the basic data model of digital earth. But it is only confined to the earth surface, and it can not reach to the earth inside or outside. The extended-Octree (e-Octree) spheroid subdivision and coding model proposed here provides a new kind of global 3D grid. This e-Octree model is based on the extension of octree structure, and there are three kinds...