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三维激光探测技术能有效探测并获取采空区复杂形态的点云数据,进而可构建采空区三角网模型。采空区三角网模型及其剖面能够在空区相邻采场设计、周围构筑物安全分析等方面提供依据。由于采空区实际形态复杂,如何精确生成其剖面轮廓线并有效封闭模型断面成为基于复杂采空区三角网模型任意方向剖面生成技术研究的关键。研究形成了一种新的复杂采空区三角网模型任意方向剖面生成算法,实现了确定任意剖切平面的多种交互方式、基于简化...
中国制造2025国家战略和“新工科”建设对高等教育变革提出了新要求和新使命。“新工科”建设不仅是国家战略对人才培养提出的新要求，也必然带动教育出版的供给侧改革。单一的以静态学科知识为主要内容的传统教材已经不能满足“大工程观”下的人才培养需要，大学的教材出版体系亟须打破常规、大胆创新、主动适应，以服务好人才培养的大局。大工程观视角下的教材出版不仅要考虑到传统教材形式上的数字化，以适应教育教学的内容重...
以2013 ~ 2016年中证800指数样本股公司为研究对象，探讨公司治理、外汇衍生品使用与企业价值之间的关系。研究发现：外汇衍生品使用能够显著增加企业价值，使用外汇衍生品管理外汇风险的企业，其企业价值要比未使用的企业高出5.7%；公司治理水平越高，企业越倾向于使用外汇衍生品；而公司治理水平低的企业，外汇衍生品使用对企业价值的提升作用不明显。
由于天然气在储运过程中存在着潜在的泄漏和爆炸风险，一旦发生事故就有可能造成人民生命财产的重大损失。因此国内外有关标准法规均要求安装泄压装置，以保证CNG气瓶在超温、超压工况下能安全泄放，降低事故风险。但由于国内外标准对泄压装置设计计算方法和计算公式不同，导致不同的泄压装置在火灾工况下的动作响应规律存在着差异。为此，针对不同结构型式、不同泄放面积的泄压装置，开展了大容积钢质无缝气瓶整体火烧工况的分析...
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...
LANDSLIDE INVENTORY MAPPING FROM BITEMPORAL 10 m SENTINEL-2 IMAGES USING CHANGE DETECTION BASED MARKOV RANDOM FIELD
Landslide Inventory Mapping Change Detection Normalized Difference Vegetation Index Principal Component Analysis Markov Random Field Sentinel-2 Images
2018/5/15
Landslide inventory mapping is essential for hazard assessment and mitigation. In most previous studies, landslide mapping was achieved by visual interpretation of aerial photos and remote sensing ima...
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...
A REVIEW OF DIGITAL WATERMARKING AND COPYRIGHT CONTROL TECHNOLOGY FOR CULTURAL RELICS
Three-dimensional Model Copyright Protection Digital Watermarking Information Security Protection of Cultural Relics
2018/5/15
With the rapid growth of the application and sharing of the 3-D model data in the protection of cultural relics, the problem of Shared security and copyright control of the three-dimensional model of ...