the importance of energy crisis and global warming necessitates presenting strategies in order to decrease the amount of emissions as well as fuel consumption in large and complex industries such as refineries and petrochemical industries. generally, refinery steam networks are regarded as units which consume fuel enormously. in this paper, the steam network of tehran oil refinery is considered...

conventional passive distribution networks are changing to modern active distribution networks which are not radial. conventional load flow methods should be modified for new distribution networks analysis. in modern distribution networks distributed generation (dg) units are embedded with conventional and/or renewable resources. dg units are generally modeled as pv or pq nodes which inject ...

social networks play a significant role in today world. these sites affect different aspects of individual and social life of people and the national and even international levels. accordingly, they are spreading, and will play more important role in the future life. this paper aims to examine the positive and negative effects of social networks’ filtering, that creates curiosity and has invers...

conclusions our results revealed the possible crucial genes and mirnas involved in the initiation and progression of hcc cells infected with hcv. results based on the topological analysis of mirna-hubgene network, we identified the key hub mirnas. in order to identify the most important common sub-network, we aligned two ppi networks using netal tool. the c-jun gene was identified as the most i...

objectives: the iranian cancer network was established in may 2003. our aim was to coordinate re search and treatment programs in all cancer centers in iran in order to save time and money and enable patients, wherever they live, to receive a uniformly high-standard treatment and care. methods: after signing a mutual contract with fellow (collaborator) university and holding some shared session...

this study has been conducted to examine the impact of the increasing use of virtual social networks on family structure. to achieve more accurate results, the research is carried out using the mixed method (qualitative and quantitative) and to collect the required date, first, 30 married individuals active in virtual social networks were selected and interviewed. then, a questionnaire was util...

content discovery is one of the fundamental issues that determines the architecture and performance of content distribution networks based on peer-to-peer (p2p) networks. to administrate the costs and discoveries, peers of a p2p network communicate with each other by one or more overlay layers. the condition of node’s relations in overlay networks, have a great impact in efficiency of networks....