Research on the Application of Phone Location Data in the Rapid Delimitation of the Meizoseismal Area

2019 ◽  
Vol 109 (6) ◽  
pp. 2470-2490
Author(s):  
Xia Chaoxu ◽  
Nie Gaozhong ◽  
Pang Xiaoke ◽  
Fan Xiwei ◽  
Zhou Junxue ◽  
...  
Keyword(s):  
Focal Depth ◽  
Seismic Intensity ◽  
Calculation Model ◽  
Actual Distribution ◽  
Change Rate ◽  
Main Method ◽  
Rescue Work ◽  
Emergency Rescue ◽  
Location Data ◽  
Meizoseismal Area

Abstract After an earthquake, rapidly assessing the affected areas, particularly the meizoseismal area, is crucial to emergency rescue work. Currently, many methods exist for delimiting the range of the area affected by an earthquake. The main method for estimating this area is to use an empirical model of the seismic intensity attenuation relationship. In contrast, this article uses the change rate (CR) of the phones’ location data in an area after the earthquake to infer the extent of the meizoseismal area. This study selects phone location data from eight earthquakes for experimentation and analysis. The results show a correlation between the phone location data and the actual distribution of the meizoseismal area based on intensity maps that were issued by the China Earthquake Administration. According to the results, the extent of the meizoseismal area can be estimated by the magnitude, the focal depth, the CR, the time of the earthquake, and the distance to the epicenter. The magnitude, CR, and focal depth are dominant and are positively correlated with the intensity. Based on the aforementioned parameters, a calculation model for delimiting the extent of the meizoseismal area based on phone location data can be constructed. The accuracy of the correlation coefficient of fitting result is 0.7826, and the R2 value is 0.6125. The results demonstrate that phone location data can be used to quickly delimit the meizoseismal area and can provide a basis for earthquake emergency rescue work.

scholarly journals A Multiobjective Optimization Model for Continuous Allocation of Emergency Rescue Materials

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yonghong Liu ◽  
Yucheng Li ◽  
De Huang
Keyword(s):  
Multiobjective Optimization ◽  
Optimization Model ◽  
Supply And Demand ◽  
Economic Losses ◽  
Allocation Scheme ◽  
Nsga Ii ◽  
Pareto Solution ◽  
Emergency Relief ◽  
Rescue Work ◽  
Emergency Rescue

Emergency rescue operations play a vital role in alleviating human suffering, reducing casualties, and cutting down economic losses. One key aspect in the management of these operations is the rational allocation of emergency relief materials, where the allocation is continuous, dynamic, and concurrent. This allocation should be made not only to minimize the emergency rescue losses, but also to reduce the cost of emergency rescue work. A reasonable and effective allocation scheme for emergency relief materials can be established to adapt to the continuity, dynamics, and concurrency of material distribution. In this work, we propose a multiobjective optimization model of emergency material allocation with continuous time-varying supply and demand constraints, where the objective is to minimize the losses and the economic cost incurred by the emergency rescue operations. The constrained optimization problem is handled through sequential unconstrained minimization techniques, and the multiobjective optimization is carried out by the fast nondominated sorting genetic algorithm (NSGA-II) with an elite strategy to obtain a Pareto solution set with fairness and balance of loss and cost. The loss and cost associated with the Pareto frontier are employed to find an appropriate noninferior solution and its corresponding material allocation scheme. We verify through several simulations the model feasibility and the effectiveness of the proposed method, which can provide decision support for continuous material allocation in emergency rescue operations.

scholarly journals A new design of portable intelligent detection equipment in chemical emergency rescue

2018 ◽  
Vol 246 ◽  
pp. 03045
Author(s):  
Siwei Li ◽  
Yansong Liang ◽  
Yanran Feng
Keyword(s):  
Real Time ◽  
Emergency Treatment ◽  
Structure Design ◽  
Real Time Monitoring ◽  
Chemical Accidents ◽  
Rescue Work ◽  
Key Technology ◽  
Emergency Rescue ◽  
Emergency Personnel ◽  
Intelligent Detection

This paper proposed a portable intelligent mobile detection equipment aimed at emergency treatment of chemical accidents, and mainly introduces the function, features, structure design and key technology of the equipment. The function is realized mainly through internal real-time monitoring and leakage source location calculation. using this unmanned detection equipment can effectively reduce casualties and risks of emergency personnel, and make rescue work easier and safer.

Comparison of macroseismic-intensity scales by considering empirical observations of structural seismic damage

2020 ◽  
pp. 875529302094417
Author(s):  
Siqi Li ◽  
Yongsheng Chen ◽  
Tianlai Yu
Keyword(s):  
Structural Damage ◽  
Damage Index ◽  
Seismic Damage ◽  
Seismic Intensity ◽  
Calculation Model ◽  
Macroseismic Intensity ◽  
Intensity Scale ◽  
Failure Characteristics ◽  
Damage Survey ◽  
Seismic Engineering

In practice, seismic intensity is evaluated in accordance with a macroseismic-intensity scale recognized in the field of seismic engineering globally. The application of different seismic-intensity scales to evaluate the seismic damage of a specific structure due to an earthquake yields diverse results. On this basis, this study compared a few extensively used macroseismic-intensity scales. The results can be used as a reference to develop an international intensity scale. According to empirical structural-damage survey data from the Wenchuan earthquake (Mw = 8.0) that occurred on 12 May 2008 in China, the European Macroseismic Scale (EMS)-98, Medvedev, Sponheuer, and Karnik (MSK)-81, and Chinese Seismic Intensity Scale (CSIS)-08 intensity scales were utilized to evaluate the resulting damage. This study carried out a vulnerability analysis of typical structures, established vulnerability seismic-damage matrices, and mapped out vulnerability curves under different intensities. Our objective is to demonstrate that the use of multiple intensity scales can lead to very different intensity levels. The differences in the damage of typical structures under different intensity levels were obtained from an evaluation using the three aforementioned intensity scales. As a result, a calculation model of the mean damage index is proposed herein. Ultimately, this article conducted an analysis on the failure characteristics of typical structures in an earthquake and provided effective measures to improve seismic performance for future reference.

A Design of Intelligent Emergency Rescue System Based on ARM

2014 ◽  
Vol 926-930 ◽  
pp. 1197-1200
Author(s):  
Shi Xian Zeng ◽  
Rui Xue ◽  
Juan Song
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Rescue Work ◽  
Emergency Rescue ◽  
Highly Efficient ◽  
Safety And Reliability ◽  
Rescue System ◽  
Hoc Networks ◽  
Hardware Circuit

Rescue work should be improved in terms of flexibility, safety and reliability. A system is designed with an ARM11 processor as the controller. WiFi Wireless Ad Hoc Networks is used in the rescue communication. The system is modular programmed and has integrated many rescue techniques. Part of the hardware circuit has been modified to improve the functionality. Experiment results show that the system is full-featured, highly efficient, and practicable. It can be used in the complicated environment of major accident scenes and is of high engineering value.

scholarly journals Evaluation of Emergency Rescue Efficiency in Coal Mines Based on Co-entropy

2021 ◽  
Author(s):  
Yumeng Wang ◽  
Zhou Xihua ◽  
Bai Gang ◽  
Xianlin Li ◽  
Xiao Mufeng ◽  
...  
Keyword(s):  
Coal Mine ◽  
Evaluation Model ◽  
Coal Mines ◽  
Assessment Model ◽  
Rescue Work ◽  
Influence Matrix ◽  
Emergency Rescue ◽  
Efficiency Assessment ◽  
Rescue System ◽  
Synergistic Relationship

Abstract By decomposing the coal mine emergency rescue organization and coal mine emergency rescue work, the synergy entropy function is constructed by combining the synergy class with the entropy theory, and the synergy efficiency assessment model of coal mine emergency rescue is established. Analyze the synergistic relationship between departments in the rescue organization and between departments and functional units, construct the synergistic influence matrix, and obtain the synergistic status of the coal mine emergency rescue system by calculating the synergistic entropy, synergistic efficiency and synergistic degree. The quantitative analysis of the emergency rescue system in coal mines is achieved by analyzing the situation of the rescue work in coal mines and evaluating the rescue organizations at each tier based on the established evaluation model.

Multi-Stage Emergency Resources Management Based on Supply Chain

2014 ◽  
Vol 635-637 ◽  
pp. 1780-1783
Author(s):  
Jing Mu ◽  
Lin Lin Liang
Keyword(s):  
Supply Chain ◽  
Resource Management ◽  
High Efficiency ◽  
Public Affairs ◽  
Rescue Work ◽  
Resources Management ◽  
Emergency Rescue ◽  
Whole Process ◽  
Multi Stage ◽  
Emergency Resource

In recent years, the abrupt public affairs occur frequently. Emergency resources as a kind of special resource which have a key role in the rescue after disaster happen suddenly. Then whether emergency resource management is high efficiency directly affect the emergency rescue work can achieve the desired results. In this article we analysis each phase of emergency resources supply chain based on the four stages of emergency rescue process theory. Then integrate the emergency resources management with various stages. At last, we will find a way which satisfying emergency management in different stages and the whole process of emergency resource management. Meanwhile, we combine the current situation that emergency resource often more than enough for the emergency rescue arousing the public’s attention and mainly analysis how to recycle the resource that is in the recovery stage.

Experiments in Plate Cutting by Shaped High Explosive Charges

1971 ◽  
Vol 13 (1) ◽  
pp. 13-25 ◽  
Author(s):  
A. I. O. Zaid ◽  
J. B. Hawkyard ◽  
W. Johnson
Keyword(s):  
High Explosive ◽  
Steel Plates ◽  
Analytical Treatment ◽  
Rescue Work ◽  
Emergency Rescue ◽  
The Past ◽  
Limited Application ◽  
Explosive Charges ◽  
Cutting System ◽  
Very High

Although axisymmetrical lined cavity shaped charges have received considerable development and analytical treatment in the past, mainly in connection with armour piercing projectiles, relatively little attention appears to have been directed towards the linear system. This finds limited application in the cutting of plates, sections and pipes, in demolition and emergency rescue work for example. Experiments into the linear cutting system are described in this paper, to investigate the influence of liner and charge geometry. Steel plates up to 2 in thickness are cut, using charge weights up to 50 g per inch of cut. To investigate the theories available for the development of the very high velocity cutting jet and its penetration of the target, experiments are performed on a range of liner and target materials to achieve variations in density and yield strength.

scholarly journals AN ULTRASONIC SENSOR FOR HUMAN PRESENCE DETECTION TO ASSIST RESCUE WORK IN LARGE BUILDINGS

2018 ◽  
Vol IV-4/W7 ◽  
pp. 135-140
Author(s):  
T. van Groeningen ◽  
H. Driessen ◽  
J. Söhl ◽  
R. Vôute
Keyword(s):  
Privacy And Security ◽  
Signal Processing Algorithm ◽  
Measuring Device ◽  
Rescue Work ◽  
Human Presence ◽  
Fire Brigade ◽  
Emergency Situations ◽  
Location Data ◽  
Ultrasonic Sound ◽  
Human Presence Detection

<p><strong>Abstract.</strong> When the fire brigade arrives at a burning building, it is of vital importance that people who are still inside can quickly be found. Smart buildings should be able to expose this location data to the fire brigade working in a smart city. In this paper the feasibility is researched of using ultrasonic sound sensors for human presence detection in smoke-filled spaces. This type of sensor could assist the fire brigade when evacuating a large building by directing them to the places where their help is most needed. The advantage of ultrasonic sound over other sensors or cameras is that its signal is able to pierce through smoke, does not require badges or other wearable devices and introduces little privacy and security risks. In addition, ultrasonic sensors are very inexpensive making it possible to equip every room of a building with an ultrasonic presence detector. In this research both a preliminary ultrasound measuring device and signal processing algorithm have been designed. Testing results show that the walking movement of a person in an indoor area can be detected with the combination of the sensor and the algorithms. In addition, tests of the signal strength in smoke have shown that ultrasound is capable of “looking through” the smoke. The algorithm based on a particle filter allows for more information to be extracted from the relatively simple sensor signal by detecting human walking movement specifically and opens up the way for an ultrasound based indoor positioning system that can be used in emergency situations.</p>

scholarly journals Research on Intelligent Evaluation Model of Railway Internationalized Earthquake Emergency Rescue Talents Based on Analytic Hierarchy Process and Fuzzy Theory

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Jin Jing ◽  
Yang Yu ◽  
Jiang Yuxin
Keyword(s):  
Analytic Hierarchy Process ◽  
High Intensity ◽  
Fuzzy Theory ◽  
Evaluation Model ◽  
Analytic Hierarchy ◽  
Earthquake Disaster ◽  
Rescue Work ◽  
Emergency Rescue ◽  
Hierarchy Process ◽  
Rescue Personnel

Earthquakes occur frequently in the 21st century and cause a large number of casualties; induced secondary geological disasters will cause more serious casualties. How to reasonably deal with the earthquake disaster to carry out emergency rescue work is becoming increasingly urgent; the ability level of earthquake disaster emergency rescue personnel is directly related to the follow-up relief effect. Based on this, aiming at the emergency rescue ability of nationalized railway management talents in high-intensity earthquake areas around the world, this paper will use the methods of analytic hierarchy process and fuzzy theory to construct an intelligent evaluation model of railway international earthquake emergency rescue personnel ability. In addition, this paper carries out a questionnaire survey of experts in related fields and model empirical research and puts forward optimization measures and suggestions for the personnel training of railway international earthquake emergency rescue in high-intensity seismic areas based on the results of model evaluation.

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