aims: several methods have been used for textile wastewater treatment. the aim of this study was to evaluate the efficiency of rosa damascena watering waste ash for cod and color removal from textile wastewater.  materials & methods: rose watering waste was gathered from one of the kashan processing plants. the raw wastewater sample was taken from one of the textile industries in kashan country...

cu-mo and cu-ti contact structures were fabricated on multi-crystalline silicon substrates to provide a low resistance ohmic contact. deposition steps are done in an excellent vacuum chamber by means of electron beam evaporation and samples are then annealed for the realization of an efficient alloy layer. the effects of process parameters such as film thickness, annealing duration and temperat...

This article proposes a boundary element method for the dynamic contact between linearly elastic body and rigid obstacle. The Signorini problem is formulated as variational inequality Poincar\'{e}-Steklov operator elastodynamic equations on boundary, which solved in mixed formulation using elements time domain. We obtain an priori estimate resulting Galerkin approximations. Numerical experiment...

Opportunistic networks (OppNets) are appealing for many applications, such as wild life monitoring, disaster relief and mobile data offloading. In such a network, a message arriving at a mobile node could be transmitted to another mobile node when they opportunistically move into each other’s transmission range (called in contact), and after multi-hop similar transmissions the message will fina...