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On the April 20th, 2013, Lushan Ms 7.0 earthquake caused large-scale secondary geological disasters including landslides and avalanches, which led to many roads interrupted and barrier lakes formed in some rivers. Due to the main earthquake fault is characteristic of thrust movement, secondary geological disasters are distributed in the upper plate, for example in Shuangshi Town, Taiping Town and...
Study of magnetic field variations due to earthquakes have been started at Shivaji University, Kolhapur (India) using three axis ULF induction type magnetic sensors. The results of ULF electromagnetic signal observations in seismoactive regions prior to earthquakes are presented. We have considered one moderate earthquake for the present study, which occurred in Koyna region on 29th July 2008 at 19:10:53...
In order to address the problem of tracking different moving targets in image sequence against a complicated background, this paper presents a particle-filter multi-target tracking algorithm based on their dynamic salient features. By making use of the research findings on visual attention, the algorithm adopts the robust dynamic salient features as a result of combining the gray-scale and details...
Focusing on the demand of positioning and power saving management for GPS intelligent terminals, taking police usage for example, a satellite searching strategy is developed to resolve the GPS's TTFF (time to first fix) problem. The strategy includes two types: user working time based strategy and GPS working characteristic based strategy. In further, the active states of the mobile terminal is collected...
A Wireless Sensor Network (WSN) consists of some wireless nodes which are known with these characteristics: small size and constrained energy source. Considering the energy constraints of nodes in Wireless Sensor Networks (WSNs), routing by efficient energy is significant, so considerable effort has been taken to design efficient routing protocol in order to prolong the lifetime of WSNs. Clustering...
Population growth in urban areas drives people vulnerability to natural disasters, especially in emergent economies like Brazil. The existing automatic pluviometric network is insufficient to provide enough information to monitor and prevent deaths due to landslides and floods in 821 municipalities defined as priority ones in the Brazilian National Plan of Risk Management and Response to Natural Disasters,...
In public words, the most primitive and simple method of solving traffic problems of roads is the investment in development of road infrastructures, but it is yet the most expensive way. In expertise view, some issues such as reducing plan costs and the shortest time to reach the final result are very important. A solution taken to improve critical traffic situation of Dezfoul- Shoushtar road is the...
One required information for land use planners and drainage engineers is a map to show the location of flood exposed area in new developing sites or in already developed townships. Land use planners are often interested to grant new estate development permission far from flood prone areas. Drainage engineers are also interested in examining the effect of upslope catchment on the specific area. Routine...
The combination of the tectonic processes and the impacts on the environment can be seen in the form of landslides. Structural features such as faults, lineaments and folds play a major role in controlling landslides. This may help to evaluate more accurate landslide mapping. The phenomena of landslides from diverse origins are very frequent in Malaysia and mainly in the region which the bed rocks...
We all witness that the earth's surface has changed attributable to two factors, natural and human activities. Human activities include land usage, deforestation and wars. To study the impacts of wars we have to identify changes to land cover on the earth's surface. For this purpose, remote sensing technology has played a significant role to monitor land cover changes. This study conducted to examine...
Accurate and timely extraction of snow cover information is of great significance in the monitoring and assessment of snow disasters. However, remote sensing observations in snowing weathers were susceptible to the impacts of clouds and atmospheric water vapor, consequently snow parameters mapping from remote sensing data usually became difficult. This study presents an integrated approach for snow...
Currently, spatial information technology and emergency management technology are widely used in the 10th Division of the Xinjiang Production and Construction Corps (XPCC), China. In this paper, emergency management system architecture based on Web services and service-oriented architecture (SOA), which is oriented to several kinds of natural disasters and emergent public security events are proposed...
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