Environment monitoring and automatic control of a building is a vital application of wireless sensor network; however, to maximize the network lifetime is a key challenge. The investigation of designing an efficient sensor network that minimizes energy dissipation in a battery of the sensor node, with limited battery power, is a vital consideration for the sensor network lifetime. Battery lifet...

Ice has been a serious obstacle and problem for the construction of hydraulic and marine structures, lighthouses, and the like in cold regions. For these structures, ice forces are the major design criteria. Because the ice loads caused by sea ice on offshore structures have been fully reviewed a few times, they are purposely set aside in this paper. Instead, two major problems are discussed he...

Global warming is big issue of this time. It is caused by producing emissions, mainly carbon dioxide. Many organizations tries to establish restrictions to limit CO2 emissions. Our aim is to monitor underground parking lots and detect level of carbon dioxide using wireless sensor network. Gained results are drawn in the map of pollution of monitored area.

The structural behaviour of adjacent buildings during a pounding and the impact which has been subject discussion for many years soil-structure interaction (SSI) ignored in design due to its complexity. However, recent research showed that SSI effects can increase lateral deflections structures founded on soft deposits. also affect inter-storey drifts similar founding soil, causing inelastic su...

Abstract Earthquake is one of the horrible natural disasters. With considerable developments in constructional science, experts have been able to find out factor forces that cause earthquakes damage and destructions different types buildings, including residential commercial caused by earthquake are high importance need be considered. The multi-story buildings usually weak points building, whic...

Abstract Seismic activity in the last two decades validate urgent improvement requirement of ductile seismic design concept for MR RC frame structures. This necesity comes from unfavorable recorded response structures required to on-site actions. The same observations and conclusions (regarding soft storey ( G round F loor (GF) or C urrent (CF)) mechanism development energy dissipation process ...