bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Topology Identification Monitoring Terminal Based on the Pulse Current Characteristic Analysis
Authors: Huizhu Xian , Jiwei Li , Weiqiong Song , Cheng Zhao , Heng Liu , Haofei Mao , Qiang Wang 
Published: July 2021

Abstract
The low-voltage distribution network field wiring is very complicated and there are many changes in the relationship between households and changes, which brings great difficulties to the topology identification and line loss management of the transformer area. Aiming at the problems of low-voltage distribution areas physical topology recognition method based on distorted current signal and big data analysis in safety, recognition accuracy, and recognition efficiency, a method for recognizing the physical topology of the low-voltage distribution area based on pulse current characteristics fusion analysis was proposed. The Hilbert-Huang transform method was used to extract the characteristics of the current signal. The Space-time characteristic of charge method based on edge computing was used to realize the verification of low-voltage distribution area topology results. HPLC communication technology and measurement technology were combined to develop a low-voltage distribution area topology recognition monitoring terminal. The monitoring terminal was installed at the key nodes of the low-voltage distribution area such as low-voltage outlet cabinets, branch boxes and meter boxes. The monitoring terminal receives the topology recognition command of concentrator and main distribution area through the HPLC communication channel, uploads the topology recognition results, draws physical topology map of low-voltage distribution area in the main distribution area, and realizes the hierarchical measurement of low-voltage distribution area by the measurement function. The pilot operation of the on-site high-quality distribution area has proven that the monitoring terminal using the low-voltage distribution area physical topology recognition method based on the pulse current feature fusion analysis can map the low-voltage distribution area physical topology safely, quickly and accurately. Furthermore, it can provide strong support for the fine management of the low-voltage distribution area.
Station-grid Co-planning of Integrated Energy System with Consideration of Multi-energy storage and Reliability Cost
Authors: Liu Rui , Feng Liang , Zheng Zhijie , Liu Dong , Wang Xian , Meng Zihan 
Published: July 2021

Abstract
In order to improve the reliability of integrated energy system, the station-grid co-planning model and its solution method are proposed. The planning model considers the constraints of distribution network, gas distribution network, heat distribution network and energy station, and aims at minimizing the total planning cost within the planning period including investment cost, maintenance cost and reliability cost. It realizes the optimal planning for the types and locations of energy supply sources, distribution pipelines, energy stations and energy storage devices, such as electricity storage devices, gas storage devices, heat storage devices and cooling storage devices. The model is a mixed integer quadratic programming problem, which is solved by Gurobi. The case study uses the modified electricity-gas-heat integrated energy system to analyse the system planning scheme and planning cost under two scenarios. The results show that the proposed model can reasonably plan the integrated energy system and further improve the reliability of the integrated energy system.
SecuriFi: Highly Robust Person Intrusion Sensing and Localization System Based on Wi-Fi Signals
Authors: Zhang Daiyang , Hao Zhanjun , Dang Xiaochao , Liu Gaoyuan 
Published: July 2021

Abstract
Home safety has always been a major concern for every family member. How to quickly sense intrusions while keeping costs low and provide users and police with accurate information about the intruder after sensing the intrusion has become an important challenge for every home security system. So we propose SecuriFi, a highly robust indoor person intrusion sensing and localization system based on Wi-Fi signals. SecuriFi uses Channel State Information (CSI) extracted from Wi-Fi signals as a medium for sensing intrusion and locating people, ensuring high system performance while effectively reducing costs. SecuriFi consists of two modules: intrusion sensing and localization. The intrusion sensing module senses the intrusion behavior by judging the change of signal energy. The localization module effectively removes the environmental noise by constructing a combined filter, and then uses an Extreme Learning Machine (ELM) as a classifier to process and form an offline fingerprint database, which maps the CSI data to the human location. In this paper, SecuriFi is verified in two different real-world environments, and the experimental results prove that SecuriFi has stronger sensitivity to intruders and high localization accuracy at the same time.
Application of Virtual Reality Technology in University Education
Authors: Geng Jiafei , Wu Xiaoli 
Published: July 2021

Abstract
Through the analysis of information and data, we use multimedia, simulation, sensing and artificial intelligence in teaching in colleges and universities, and use many abstract and difficult experiments and theoretical knowledge to create simulated scenarios, natural simulations, and lifelike experiences with virtual technology. Technology and methods. It can generate real-time artificial virtual environment with three-dimensional information that people can interact with naturally. When learners enter it, they can have an immersive and completely real feeling. Through a variety of sensing devices, people can inspect or manipulate objects in the virtual environment, and manipulate and communicate with the environment in real time as in the real world. Virtual reality technology has been fully utilized and popularized in the education of colleges and universities.
The Train Paths Selection Model of Express Freight Train Based on the Entire Transportation Time
Authors: Kai-kai Wang , Shi-wei He 
Published: July 2021

Abstract
Express freight train occupies an important position in the railway freight transportation market due to its stable transportation process and good timeliness. In order to ensure the transportation stability and timeliness of express freight trains, the selection of train paths is an extremely important procedure. A scientific and reasonable selection method of train paths is a necessary guarantee for express freight trains to ex ert their unique advantages as freight products, and influences the quality of freight services and economic benefits. The train timetable was transformed into a space-time network. With the minimum entire transportation time as the optimization objective, and the influence factors of train trip time, transit time in the stations and freight transit period as constraints, a train paths selection model of express freight trains was constructed. The model can realize the reasonable selection of train paths. Finally, an example was given to demonstrate the feasibility and effectiveness of the model and provide a theoretical basis for the railway operation department.
WebGIS System of Kunming Public Drainage Pump Station
Authors: Kang Xiaolin , Liang Hong , Luo Wei , Xu Wenjie 
Published: July 2021

Abstract
Drainage system is the main artery and vein of urban life, and is an important municipal infrastructure for the survival and development of a city. The drainage pumping station is an indispensable part of the drainage project and a hydraulic hub for the normal operation of the urban drainage system. With the rapid development of social economy in Kunming city, the city scale and population increase sharply, Kunming city drainage system, especially drainage pumping station is also facing great pressure and challenge. Aiming at the problems existing in the operation and management of drainage pumping station, a management system of Kunming drainage pumping station based on WebGIS is built to realize the information and scientific management and analysis of a large amount of data. Efficient utilization of pump station operation data; fast access to pumping station information according to different attribute requirements; using statistical chart to better show the situation of Kunming drainage pumping station; use measurement functions to plan pumping stations. The application of this system not only greatly improves the data utilization rate, but also can obtain information quickly and efficiently manage information.
Hierarchical Data Transmission and Processing Analysis of Sensor Network System
Authors: Liu Hong 
Published: July 2021

Abstract
Hierarchical structure is the method and means of data transmission in sensor network system. The large-scale application of sensor network system and a large number of data acquisition will produce massive data. In order to reduce the load of sensor network processor system and make data transmission more reliable and convenient. For the transmission and processing of streaming and structured data, the data can be processed hierarchically and dimensionally. Hierarchical processing can effectively reduce the load of the network system; Dimensionality reduction can effectively compress the amount of data to reduce the time of data transmission and processing. Hierarchical operation is a necessary step for data transmission and processing in sensor networks, and has been applied in large-scale data transmission and processing algorithms.
Correlation Power Analysis of Lightweight Block Cipher Algorithm LiCi
Authors: Xia Xuan , Chen Bowei , Zhong Weidong 
Published: July 2021

Abstract
The lightweight block cipher algorithm LiCi processes the input plaintexts into high 32-bits and low 32-bits respectively in Feistel structure, and the corresponding keys of these two parts are not related. Therefore, keys of the first round can be cracked independently, and the computational complexity can be reduced from 264 to 232. After studying the key update strategy, this paper proposed that the computational complexity of cracking the second round keys can reduce from 264 to 213 by using the key obtained in the first round attack. When cracking the sixth round, the complete 128-bit key can be recovered. In this paper, the LiCi encryption algorithm was deployed on FPGA, the power consumption curves were measured with Tektronix MSO5204B oscilloscope which are used to recover the key in the LiCi encryption algorithm. we choose 8 bits keys as attack goal and get the true keys.
Research on Detection Technology for the Changes of Buildings by High Resolution Remote Sensing Image
Authors: Wang Ting , Zhang Jie , Li Ting , Li Yifei , Zhu Wenshan , Li Tao , Zhang Xi 
Published: July 2021

Abstract
Remote sensing is one of the most effective monitoring technologies for space change at home and abroad. This paper was designed to investigate the application methods of aerial and space remote sensing techniques in urban building change monitoring. It also proposed an urban spatial data updating method combining the InSAR technology and aerospace remote sensing for large-scale data updating and aerial photogrammetry technology for small-scale key data updating. Through simulation experiments of watershed-based image recognition and monitoring, observation and comparison, this paper adopted a watershed-based segmentation algorithm for GPU and its application to change recognition of urban building images.
Transformation and upgrading of aquatic products cold chain logistics from the perspective of new and traditional kinetic energy conversion
Authors: Cheng Kun 
Published: July 2021

Abstract
Aquatic products are favored by people because of its high quality protein, low fat content, balanced nutrients and delicious taste. However, aquatic products have a high demand for freshness, which is very hard to keep fresh and greatly increases the difficulty of circulation and easily destroys its appearance, odor shape, nutritional value and market economic value. The transportation of products, that is, logistics, has become an important means to provide fresh-keeping products and ensure that nutrition does not lose. Therefore, this paper will analyze this topic. This paper first analyzes the development status of China’s cold chain logistics and the impact of the emergence of new kinetic energy on logistics, and then analyzes the specific development measures, development strategies and development routes of cold chain logistics, so as to help China’s cold chain logistics find the right development direction.
Stability analysis of full-section construction of staggered distance double-hole tunnel
Authors: Liu Zhen , Wang Zhenxing , Zhang Junwu , Wei Xiaohang , Zhang Xiaowei 
Published: July 2021

Abstract
In the staggered distance double-hole tunnel located on the slope of the mountain, the deformation of the surrounding rock and the supporting structure of the tunnel is complicated. The deformation stability of the tunnel entrance is one of the most difficult points of the tunnel. In order to clarify the deformation law of the full-section construction at the entrance of the staggered distance double-hole tunnel, the entrance section of the Georgia E60 Highway No. 3 tunnel under construction is used as the background, and the method of numerical simulation test is used to study the staggered distance double-hole tunnel, the influence of section construction on the deformation and stability of the side and front slopes of the tunnel entrance section and the support structure of the tunnel entrance section. The research results show that: For tunnels with full-section construction, excavation will cause certain deformations on the ground and the tunnel, and the stability of the left side support structure of the right line tunnel without rock column between the two tunnels is worse than that in other positions, on the whole, the construction plan is reasonable and feasible.
Layout Optimization of Guidance Signs in Subway Station Based on Passenger Flow Line
Authors: Ji Hong-Wei , Zhou Hui-Juan 
Published: July 2021

Abstract
With the continuous acceleration of urbanization, urban public traffic congestion is becoming more and more serious. In order to alleviate traffic congestion, people’s demand for public transportation is increasing. Due to the increasing passenger flow in the subway station, the original guidance signs in the station often fail to play the expected role, and passengers cannot get effective guidance in the crowded passenger flow. This paper takes the maximum amount of information obtained by passengers as the objective function to establish the guidance sign layout model, and chooses a 0-1 integer programming model to solve it. Based on the distribution coefficient ρij;
, the passenger flow wij;
, the weight coefficient d and the inverse of the number of intersections qij
, these four variables are used to comprehensively analyze the amount of guidance information of the guidance signs, and set constraints based on the number of passenger flow lines and guidance signs. Xiyuan Subway station, for example, through the site of the actual passenger flow survey, to obtain the required parameters, and finally using MATLAB programming solution, to get an effective guidance sign layout position, improve the guidance sign guide efficiency.
Refined Calculation of Temperature Field in Cross-passage by Artificial Ground Freezing
Authors: Lu Xiangzhong , Zhang Qingwu , Sun Wenbin , Yan Su , Zhang Jiarong 
Published: July 2021

Abstract
In China, the artificial ground freezing (AGF) method is widely used in the construction of cross-passages, however, it is difficult to accurately calculate the numerical solution of the freezing temperature field. In this paper, the boundary conditions in the numerical calculation are refined through in-suit measurements, and finally the freezing process of the connecting channel is effectively simulated. The calculation results show that the thickness and temperature of the frozen wall at 1.0 m near the main tunnel segment are significantly weakened. The frozen wall at the top of the cross-passage is affected by densely arranged holes, which is prone to excessive freezing. And based on the calculation results, an optimization plan for the highest cooling efficiency in the initial stage of active freezing and speeding up freezing is proposed.
Prediction Model of Emergency Rescue time for Special Major Accidents in High-speed Railway based on GERTS Network
Authors: Tao Zhao , Jing Zuo 
Published: July 2021

Abstract
The existing emergency rescue process of high-speed railway mainly depends on the command and experience of emergency managers, and the rescue efficiency fluctuates greatly. In order to solve this problem, this paper constructs a model which can predict the time needed for emergency rescue. Firstly, the emergency rescue process of high-speed railway emergency is analyzed, then the relationship between key rescue tasks and the required time can be obtained according to the data mining of rescue cases and expert consultation, and the GERTS network model is established. Finally, the Yong-Wen line accident rescue case is simulated. The accident of Yong-Wen line was interrupted for 32 hours and 35 minutes, the number of simulations is 10000, and the average time is 32 hours. The results show that the model can accurately predict the time needed for emergency rescue and assist the rescue department to make scientific decisions.
Research on Optimization of Joint Distribution of Cold Chain Logistics Adopts Carbon Emission
Authors: Wushuang Li , Xiaofei Kou , Chengming Zhu 
Published: July 2021

Abstract
Aiming at high energy consumption, high carbon emission and high cost of cold chain logistics distribution. In this paper, an optimization model of cold chain joint distribution terminal distribution path with carbon emission is established, and the model takes fixed cost, carbon emission cost, transportation cost, damage cost and penalty cost with time window into consideration, and optimizes the total distribution cost. In this paper, genetic algorithm is used as the optimization algorithm to solve the model, and combined with concrete examples to demonstrate.
Comparison of Smart City Development in Japan and China by Text Mining Analysis
Authors: Liu Dixin , Morimoto Akinori , Kitano Naohiro 
Published: July 2021

Abstract
With the information technology development, Smart city has become popular worldwide in recent years. However, the applications of smart cities are diversified among countries to achieve different objectives. This research compared how the smart city concept has been applied differently in China and Japan, two major economies in East Asia, through text mining techniques on relevant journal articles. The journal articles in either countries are analyzed by software, KH-Coder, which automatically extracts word, count the frequency of each word then using statistic method to classify and find the relationship among each high-frequency word. The results imply that in the case of Japan, energy efficiency in local level is a primary focus while the smart city concept is applied as a basic infrastructure for economic development in China.
Simulation Analysis of the Exit Capacity of Depot of Urban Rail Transit
Authors: Chang Sheng , Wang Zhimei 
Published: July 2021

Abstract
A large number of subway trains depart from the depot before the morning rush hour, so the exit capacity of depot is insufficient. Using Anylogic software as the simulation platform, the paper has carried out an in-depth study on the exit capacity of depot from the perspectives of the access line and the main line, analyzed the impact of access lines capacity on exit capacity of depot under different conditions; researched the impact of different main line occupancy conditions caused by different traffic densities on exit capacity of depot. Taking the existing exit capacity of depot of Taipinghu Depot as an example, corresponding optimization scheme is put forward, and the effectiveness is verified by building a simulation model.
The Future Integrated Traffic Management System to Optimize the Automobile Traffic
Authors: Zhou Nan 
Published: July 2021

Abstract
Automobiles have developed rapidly at this time, where Europe, the US, and China are the largest markets for automobile production and sales. However, traffic congestion is not only the main problem, environmental deterioration, energy exhaustion, and atmospheric pollution also occurs in line with the growing of automobiles. Therefore, it requires adequate infrastructure and steps on how to optimize traffic to increase productivity, safety and satisfaction of road users. This research aimed to determine how a developed country like the US controls its infrastructure system, how the development of automobiles is in line with the increasing level of road congestion, and how modern traffic management solutions optimize congestion. In collecting data in this study, the author uses descriptive methods with literature study. Data will be collected through journals, books, research in the same field, electronic documents, statistical data, etc. The research shows that to optimize the automobile traffic, a country and automobile companies should manage the traffic with computational framework, using algorithms, future interaction and signals connected cars, and using the central control center. The future integrated traffic management will allow a new transport standard that will benefit the road users in fuel saving, ridesharing, creating high quality worldwide route and traffic light optimization, and avoid them from time wasting.
Liquid CO2 Phase Change Fracturing and Vibration Monitoring in Roadbed Slope Excavation
Authors: Hailiang Yuan , Chen Chen , Jianxin Yu , Xiaoyi Liu , Bin Dong 
Published: July 2021

Abstract
In order to analyze the vibration impact of carbon dioxide fracturing tube blasting red sandstone, combined with the engineering conditions and surrounding environment of Anqing High-tech Zone, the rock-breaking blasting plan is carefully designed. The fracturing tube is arranged in two rows, the first row has 23 holes with a spacing of 1.5m, and the second batch of holes has 22 holes, which are arranged in a quincunx pattern with a distance of ‘1.3m between the front and rear rows. And design the corresponding vibration signal monitoring test to study the crack propagation caused by blasting, the attenuation law of vibration and its frequency spectrum distribution. The results show that after blasting, there is a relatively smooth crack in the plane area of the fracture zone 7m away from the critical surface. The width of the crack is between 20-40cm. The vibration velocity of the measuring point decays rapidly with the increase of the vibration source distance, and the vibration velocity decay curves in the X and Y directions are basically the same. Spectrum analysis shows that the main frequency band of each sub-velocity is generally below 100Hz, and the main vibration frequencies in the X and Y directions are concentrated in 30∼60Hz. The main vibration frequency band of the rock-breaking blasting vibration signal has little correlation with the direction and propagation distance of the vibration signal. And compared with the analysis of emulsion explosives, it is found that the particle vibration speed caused by the emulsion explosive rock-breaking blasting is much greater than that of the liquid CO2 fracturing tube rock-breaking blasting, indicating that the use of liquid carbon dioxide to break the rock can effectively reduce the vibration generated by blasting.