The quality of traditional Chinese herbal medicine, which plays a very important role in the health system of China, is determined by the active substances produced by the plants. The type, content, and proportion of these substances may vary depending on ecological factors in areas where the plants are grown. Sinopodophyllum hexandrum (Royle) T.S. Ying, an endangered plant species with great m...

Notwithstanding the fact that our planet is characterized by scientific, technical, political and economic achievements from beginning of XXI century, there still problems in development, socio-economic backwardness, management determination borders between countries. The Turkic states, which recently gained independence, are trying to determine their geopolitical position arena world, mainly a...

among structured peer-to-peer systems, chord has a general popularity due to its salient features like simplicity, high scalability, small path length with respect to network size, and flexibility on node join and departure. however, chord doesn’t take into account the topology of underlying physical network when a new node is being added to the system, thus resulting in high routing latency an...

One of the most obvious technologies behind Location Based Services (LBS) is positioning, with the most widely recognized system being the Global Positioning System (GPS). There are, however, other means of positioning in addition to GPS. These other technologies are network based positioning and typically rely on various means of triangulation of the signal from cell sites serving a mobile pho...

This study examines the distribution of water resources in Protected Areas Iran and their priority for conservation. The results show that most are located north northwest due to favorable climatic conditions, topography, ambient temperature, annual rainfall levels. Conversely, lowest amount center southeast country. Water were prioritized based on expert ratings indicators determine value wetl...

Location aware computing are the ability to find the geographical location of the mobile device and provide services based on this location information, and now many researchers consider location aware to be the key concept of mobile computing environment. In this paper, we discuss about the basic concept of location aware computing, its technical methods and architectures, case study, brief ou...