this study aims to investigate the current and desired situation of information and communication technologies (ict), organizational structure and firm performance in consultant engineering firms. to do so, a descriptive-exploratory study was performed among 252 managers and experts of consultant engineering firms in tehran. a cluster sampling approach was used bya self-administrated questionna...

The domain of research of our team crosses system engineering based on reuse, component paradigm an interoperability. Our goal is to provide the integration of existing heterogeneous distributed components. This integration must be plat-form independent, in order to face the problem of middleware proliferation. First, we position our approach with regard to Model Driven Architecture. We briefly...

 Aims of the Study: The objective of this study was to appraise wastewater management approaches in rural areas of Iran, restrictions, effects on environment and also definition of suitable management approaches in wastewater for future. Materials & Methods: This descriptive study was performed in 2010 in rural areas of Iran. A questionnaire was prepared with subjects such as availa...

CuO-TiO2 nanocomposites were successfully synthesized using the C. benghalensis plant extracts. The effect of composition CuO to TiO2 on morphological, optical, electrochemical, and photodegradation efficiency in composites was studied. SEM, XRD, UV-vis, FTIR, TGA, BET, CV used characterize these materials. XRD data reported tenorite structure anatase phase TiO2. SEM showed spherical morphologi...

Nanostructured zinc oxide (ZnO) was successfully synthesized by precipitation method using the extract of Cylea barbata Miers (CBM) leaves as a soft template after 3 h of calcinations in furnace at 500oC in the open air. Characterization results showed that the nanostructured ZnO had hexagonal wurtzite structure with space group P63mc and nano-scale particle diameter. It was suggested that the ...