搜索结果: 16-30 共查到“知识库 安全科学技术基础学科”相关记录739条 . 查询时间(6.339 秒)
以麻柳林滑坡为例，选取了内摩擦角、粘聚力、渗透系数、浸没率、库水位下降速率及降雨量等6个因素进行了正交试验，采用极差分析法进行了稳定性敏感分析.结果表明，滑坡稳定性及其变化率主要由内因决定，库水和降雨对其影响较小.滑坡稳定性对内摩擦角最敏感，其次依次为渗透系数、粘聚力和浸没率.滑坡初始稳定性主要由内摩擦角和粘聚力决定.滑坡稳定性随浸没率的降低而逐步增加，但增幅较小；渗透系数对滑坡稳定系数变化率的影...
ON THE USE OF CITSCI AND VGI IN NATURAL HAZARD ASSESSMENT
Geosciences Citizen Science CitSci Volunteer Geographical Information VGI
2019/2/27
The developments in the geospatially-enabled mobile communication technologies have opened new horizons in many fields of geosciences research, especially in those where data collection, processing an...
FIRE EVACUATION SIMULATION CONSIDERING THE MOVEMENT OF PEDESTRIAN ACCORDING TO FIRE SPREAD
Fire evacuation simulation Floor field model, Fire dynamics simulator Indoor evacuation Fire spread field Fire recognition field
2018/11/9
A fire simulator and an evacuation simulator are generally used independently to diagnose the safety of a building in the case of the fire and evacuation. However, it is hard to provide highly accurat...
VULNERABILITY MAPPING AND ANALYSIS: AN IMPLEMENTATION IN GEOHAZARD AREAS IN SABAH
Landslide vulnerability Geospatial Landslide risk
2018/11/9
Vulnerability identifies the element-at-risk as well as the evaluation of their relationships with the hazard. The relationships relate the landslide potential damages over a specific element-at-risk....
由于射频识别系统中读写器和标签是在不安全的无线信道中进行通信，而且随着移动读写终端的出现，使得读写器和服务器通信也不安全，容易受到假冒攻击、窃听攻击、中间人攻击等安全威胁，针对此问题提出了基于中国剩余定理的射频识别双向认证协议。该协议利用对称加密、模运算等方式提高信息传输的安全性，引入时间戳来抵抗中间人攻击，并利用中国剩余定理对各方进行认证，最后采用随机更新密钥的方式进行密钥更新，并通过形式化证明...
DISASTER MONITORING AND EMERGENCY RESPONSE SERVICES IN CHINA
Emergency Response Service Disasters Satellite data Earth Observations
2018/5/15
The Disaster Monitoring and Emergency Response Service(DIMERS) project was kicked off in 2017 in China, with the purpose to improve timely responsive service of the institutions involved in the manage...
SAR COHERENCE CHANGE DETECTION OF URBAN AREAS AFFECTED BY DISASTERS USING SENTINEL-1 IMAGERY
SAR Coherence Change Detection Coherence maps Hurricane earthquake
2018/5/15
The study focuses on two study areas: San Juan in Puerto Rico, which was affected by Hurricane Maria in September 2017, and Sarpol Zahab in Iran, which was one of the towns affected by an earthquake i...
THE TRANSMISSION CHANNEL TOWER IDENTIFICATION AND LANDSLIDE DISASTER MONITORING BASED ON INSAR
Transmission Channel Transmission Tower Identification InSAR Time Series D-InSAR Landslide Monitoring
2018/5/14
The transmission distance of transmission lines is long, the line affected by the diversity of climate and topography of the corridors of transmission lines, differences in regional geological structu...
EMERGENCY COMMUNICATIONS NETWORK FOR DISASTERS MANAGEMENT IN VENEZUELA
Space Technology Applications Disasters Management Emergency Communications Network VENESAT-1 VRSS-1 VRSS-2 Technologies Solutions Images Exchange
2018/5/11
The integration and use of different space technology applications for disasters management, play an important role at the time of prevents the causes and mitigates the effects of the natural disaster...
IMPROVING THE INTEROPERABILITY OF DISASTER MODELS: A CASE STUDY OF PROPOSING FIREML FOR FOREST FIRE MODEL
FireML Forest Fire Model 3DGIS Disaster Management System
2018/5/14
This paper presents a new standardized data format named Fire Markup Language (FireML), extended by the Geography Markup Language (GML) of OGC, to elaborate upon the fire hazard model. The proposed Fi...
MULTI-SATELLITE OBSERVATION SCHEDULING FOR LARGE AREA DISASTER EMERGENCY RESPONSE
Disaster Emergency Response Area Tasks Decomposition Multi-satellite Scheduling Multi-objective Genetic Algorithm
2018/5/15
an optimal imaging plan, plays a key role in coordinating multiple satellites to monitor the disaster area. In the paper, to generate imaging plan dynamically according to the disaster relief, we prop...
THE TYPHOON DISASTER ANALYSIS BASED ON WEIBO TOPIC HEAT
Typical cyclone disaster Weibo data Topic heat Quantitative relationship Damage assessment Hazard management
2018/5/16
Could social media data be utilized in hazard evaluation? Typhoon disaster as one of the costly disaster has become devastating threats for human. Moreover, social media change the communication way o...
RESEARCH ON DISASTER EARLY WARNING AND DISASTER RELIEF INTEGRATED SERVICE SYSTEM BASED ON BLOCK DATA THEORY
Block data Disaster Early Warning Emergency Relief Data Fusion Service Aggregation TIANDITU (MapWorld)
2018/5/16
With the continuous development of social economy, the interaction between mankind and nature has become increasingly evident. Disastrous global catastrophes have occurred from time to time, causing h...
DISASTER EMERGENCY RAPID ASSESSMENT BASED ON REMOTE SENSING AND BACKGROUND DATA
Rapid Assessment Remote Sensing GIS, Disaster
2018/5/14
The period from starting to the stable conditions is an important stage of disaster development. In addition to collecting and reporting information on disaster situations, remote sensing images by sa...