bluuebunny/crossref_metadata_2025_split huggingface dataset:
Two-Phase Algorithm to Multiple Depots Vehicle Routing Problem with Soft Time Windows
Authors: Chen Ailing , Gu Xinxin , Gao Zhao 
Published: October 2020

Abstract
With the rapid growth of social economy, many companies often have multiple distribution centers. In this paper, multiple depots vehicle routing problem with soft time windows (MDVRPSTW) is researched. A mathematical model, which is aiming to minimize the transport cost, is established. Two-phase algorithm is designed to solve this problem. In the first phase, customers’ orders are distributed to the distribution center by exact algorithm. In the second phase, all the route of each distribution center is calculated. Because this problem is an NP-hard problem, it is difficult to get optimal solution fast when calculating large scale examples, improved genetic algorithm is adopted to solve this problem. In this paper, traditional roulette selection method is abandoned in the stage of designing the selection operator, so as to avoid that the early high fitness individuals occupy the population rapidly and the later population stops evolution due to the small difference of individual fitness. Finally, a practice example of a certain company is calculated by the above method to verify the efficiency of algorithm in this paper.
Simulation Research on the Driving Stability of Articulated Vehicle Based on ADAMS
Authors: Fang Wei-Ping , Yang Xiao-Jun , Li Yong 
Published: October 2020

Abstract
The vehicle dynamical model was established by taking the articulated vehicle driven electrically as the research object, and the vehicle dynamical simulation was carried out by using ADAMS. The effects of different center of mass position, steering parameters, mass, lateral stiffness of tire, suspension stiffness and damping on the driving stability of articulated vehicle were analyzed. The simulation results showed that the driving stability of the articulated vehicle was improved by factors such as the position of the center of mass closing to the hinged point, increasing the steering stiffness and damping, reducing the lateral stiffness of the tire, increasing the suspension stiffness and damping, appropriately increasing the rear body mass, etc. This study provided a reference for the design and improvement of the vehicle.
Construction Technology of Comprehensive Disposal for Shallowburied Section of Mountaintunnel
Authors: Du Yu , Jiang Jikun 
Published: October 2020

Abstract
In this paper, the Wushi tunnel of Qingyun Expressway in Guangdong Province is taken as the engineering background, the shallow buried section of mountain tunnel is the area with frequent tunnel diseases, in order to solve the problems of poor self-stability of the excavation surface, destruction of supporting structure and water inrush caused by fully weathered surrounding rock in shallow tunnel, after integrating the treatment technology of the existing fully weathered surrounding rock shallow buried tunnel, pre-reinforcement treatment of fully weathered granite with cover grouting technology on deep surface, the working face is excavated after being pre-supported by a double-layer advanced small pipe and using a new type of self-adhesive waterproof membrane to ensure the waterproof effect of the lining, safe and efficient completion of shallow tunnel excavation, Then backfill the soil of the construction surface to carry out ecological restoration work. Through the study of this process, the construction process flow of the fully weathered surrounding rock shallow buried tunnel is summarized, and the key points of each construction stage are pointed out to ensure the construction quality and optimize the construction technology of the shallow buried section of the mountain tunnel, which provide a reference for other similar engineering problems.
GA-ARIMA Model-Based Analysis of Arrival time at Bus Stop
Authors: Xiang Guo , Deyong Guan , Yuxuan Xue 
Published: October 2020

Abstract
Background With the ever-changing urban development and a growing number of vehicles, the road congestion problem has become a hotspot issue at present. As an important constituent part of road traffic system, public traffic system has become an effective force relieving the traffic congestion problem. Objective To explore how to better reduce the prediction error of arrival time at bus stop on basis of actual GPS bus data. Method The arrival time at bus stop was analyzed based on GPS data, a time series optimization model based on genetic algorithm was established, followed by the prediction error analysis of arrival time at bus stop. Result The prediction result of GA-ARIMA model is superior to that of the traditional time series model, which indicates the effectiveness of this model.
Deployment mode of District centralized cooling system in City
Authors: Wang Lu , Zhen Yun , Zeng Sun Qi , Liu WeiXiong 
Published: October 2020

Abstract
Nowadays, district central cooling system is used widely to provide cooling for a city or a large area. The existence of a large amount of vanadium brings unexpected problems to the prevention of high temperature. This paper discusses the main features of District centralized cooling system, introduces the characteristics and construction of the multi-energy system including district centralized cooling system. The corresponding planning and deployment methods are described. Design and deployment of system are introduced. From the energy system of Guangzhou university town and Qian Hai Area of Shen Zhen, the composition of energy system of district and its application in different area are studied.
Analysis on the difference of time and space allocation of slots at regional hub airports: A Comparative Case Study of CTU and CKG
Authors: Peiwen Zhang , Fumin Du , Tong Chen , Yidan Wu 
Published: October 2020

Abstract
Taking Chengdu Shuangliu(CTU) and Chongqing Jiangbei(CKG) as examples, using flight data with methods such as volatility and external connection degree, the difference in slots allocation between adjacent regional hub airports from the time and space dimensions is quantitatively depicted. It shows that the overall flight schedule of CTU and CKG is similar, but during peak hours, the strong passenger demand of CTU Airport makes its flight volume more stable, moreover CKG enters the peak hour one hour later than CTU. The morning and evening peak-shaped flight waves are formed in both airports, but the take-off and landing intervals of CTU during peak hours are shorter than that of CKG. In addition, the take-off peak period of CKG is shorter than that of CTU; those with high external connections between the two airports are provincial capitals or sub-provincial cities in domestic, although some cities in remote provinces are more inclined to connect to CTU. International cities with higher external connections are all over China, especially nearly half of the international flights from both cities are to Southeast Asia, and connection degree between CTU and Southeast Asia is higher than Chongqing.
Development characteristics of inner rail corrugation in small radius curve of Metro
Authors: Yin Xianxian , Wei Xiukun 
Published: October 2020

Abstract
This paper mainly studies the influence of different curve positions of metro’s small radius curve and the tidality of metro passenger flow on the development of inner rail corrugation. Based on the material friction and wear theory, the rail wear is simulated and analyzed to analyze the time-frequency characteristics of rail corrugated wear. And the development characteristics of rail corrugation are revealed by the analysis of the natural frequency response of the rail and the vibration mode analysis. The results show that the rail corrugation disease first appears on the circular curve, and the occurrence of corrugation is related to the lateral first-order and second-order bending vibrations of the rail. In addition, the tidal nature of subway passenger flow leads to the extension of the rail surface corrugation at its initial position, producing a series of sub-waves with different wave depths.
Self-organization Evolution Model and Application of Travel Mode System Based on Sensitivity Analysis
Authors: Wang Qiuping , Ma Jingyi , Tao Ke 
Published: October 2020

Abstract
The imbalance between traffic supply and demand is the root cause of urban transport problems. Travel mode is the most direct carrier of travel activities. It is feasible to improve traffic problems by optimizing the system it constitutes. Taking the evolution process of the travel mode system as the research object, we modified the model based on the characteristics of different travel modes and built the self-organization evolution model of the travel mode system based on the logistics equation. Using the sensitivity analysis we concluded that the most significant factor influencing the final state of the system evolution is the coopetition relationship among ground buses, private cars, and rail transit. We further analyzed this relationship among three travel modes based on stability theory and obtained the development characteristics of the cooper-competition effect and the corresponding countermeasures, which provides an idea for the optimization of the system structure.
Design and Development of Simulation Computer Software for Safety Siding in Regional Expressed Railway
Authors: Wang Xiaochao , Li Shuang , Zhang Zihang , Chen Jiaqian 
Published: October 2020

Abstract
The safety siding is an isolated line used to ensure safety on traffic operating. Too short a safety siding does not guarantee the safe operation of the train, while too long a safety siding will increase the cost and design difficulty of construction. The prior art specification says the length of the safety siding required is not less than 50m. Obviously, there is still uncertainty about the setting length of safety siding on specific line. This paper combines the characteristics of the suburban railway to design and develop a setting simulation system of safety siding. The safety siding calculation model is established by the traction calculation method, which includes different factors such as braking ratio, train speed, line parameters, signal system and application scenarios. Moreover, it designs the structure and function of the simulation system and discusses the key techniques of simulation. Finally, taking the Fuzhou Railway Station as an example to verify the simulation system. The results show that when the different lines and train parameters are configured, the design length of the result is also different. The simulation system could accomplish the design of the safety siding in different scenes. The calculation results are reliable and have engineering application value.
Research and application of dimming control system for highway tunnel lighting on demand
Authors: Yong Pan , Fang Wang , Li Wu Xiao , Qi Zhang 
Published: October 2020

Abstract
Aim at the widely used energy —saving lamp in highway tunnel, in accordance with the relevant requirements in JTG/T D70/2— 01—2014“ Design Details of Highway Tunnel Lighting”, traffic prediction theory and multi-source information fusion method, internet of things technology was applied to tunnel lighting control. Taking a highway tunnel as background, this parper carried out application study on the on-demand lighting technology of highway tunnel, and it built LED tunnel lighting system on demand and developed dimming control system for highway tunnel based on the Internet of things, and it achieved networked and intelligent management of lighting energy saving.
One kind of networking mode ATC system coordinate projected optimization method
Authors: Yan Liu , Xuefei Xiao 
Published: October 2020

Abstract
The traffic management system in civil aviation adopts map projection when processing the target track position, but the distortion caused by the coordinate projection error will affect the processing accuracy of the system. In order to solve this problem, this paper proposes an optimization method based on the networking mode, constructs multiple networking centers and processing units to form a target tracking report relationship, implements distributed processing splicing according to the regional target situation, and discusses the coordinates in the system networking mode Principles of the use of the system and coordinate conversion. By updating the calculation, the effect of dealing with large-area projection errors is effectively reduced, which provides ideas for my country to establish a nationwide air traffic management system.
Evaluation Method of Transfer and Connection Capacity of Rail Transit Terminal
Authors: Xue Jiarong 
Published: October 2020

Abstract
This paper puts forward the ideas and methods for evaluating the transfer and connection ability of multi-mode rail transit, including high-speed railway, inter-city railway, regional railway and urban rail transit. In the first place, based on the transfer station, the transfer process of passenger flow is analyzed. After that, there are three ratios taken as calculation indexes which are the ratio of transport capacity to transport capacity, service facilities capacity to transport capacity, waiting time to transfer process time. In the end, a crucial step, the transfer capacity of rail transit terminal is calculated by using the entropy weight and TOPSIS method. In summary, a set of methods and procedures for evaluating the transfer and connection capacity of rail transit terminal are obtained, and an example is given to illustrate the transfer system to the subway system of Chengdu East Passenger Transport station on a certain day.
Research on key problems for a mritime patrol mode integrating patrol with search and rescue
Authors: Minglu Ma , Guobo Wang 
Published: October 2020

Abstract
The present study summarizes major challenges in integration of maritime patrol, search and rescue, and proposes corresponding solutions based on previous studies and relevant practice in China and abroad. The patrol mode that integrates cruise, search and rescue is expected to fulfill patrol missions while improving the ships’ capacity for search and rescue. In other words, cruise, search and rescue are fulfilled at the same time. At present, major challenges in integration of maritime patrol, search and rescue include problems in organizational planning, layout of sites, deployment and training of personnel, quality of rescue-and-rescue equipment, logistical support and soft environment for integration. Based on rescue capacity building in China and advanced search and rescue modes and technologies of other countries, this study puts forward corresponding measures to upgrade organizational planning, realize proper layout of sites for cruise, search and rescue, cultivate personnel, improve performance of equipment, increase the application of information technologies, improve logistical support, and foster an enabling soft environment for integration of cruise, search and rescue.
Selecting the Best Links for Lane-reversal in Wide-area Evacuation Based on the Critical Edge Model of Dynamic Maximum Flow Increase
Authors: Gao Mingxia , Tuo Su 
Published: October 2020

Abstract
Based on the theory of dynamic flow, we study the optimization problem of dynamic reverse lane, that is, the selection of the road section and the optimization of the time period of lane reverse operation. We abstract an evacuation road network as a directed network with variable capacity, and define the critical dynamical edge for increasing the dynamical maximum flow value of such network. We can get alternative links and corresponding time period for lane-reversal operation by searching critical dynamical edges for increasing the dynamical maximum flow value. We present a modified algorithm to find such critical dynamical edges on the basis of the maximal capacity path algorithm for the static maximum flow problem. We also give a numerical example and test the effects through traffic simulation. The results show that evacuation time can be effectively decreased through taking dynamical reversal lane scheme in regional evacuation.
Analysis of the impact of public transport on the city Taking the current situation of public transport in Jinan as an example
Authors: Zhang Zhe , Li Yuanyuan , Xiong Peng , Chu Xiaochang 
Published: October 2020

Abstract
The development of public transport will have an important impact on the survival and development of the city. The deterioration of the traffic situation will lead to urban problems, such as energy waste, environmental pollution, urban development lag. In some areas, the priority development strategy of public transport has been adopted and adhered to for a long time. Not only can the rapid economic development, land and energy resources be effectively utilized, but the ecological environment is also protected from damage, and the strategic decision of sustainable development is implemented.[1]This paper takes the most representative bus in urban public transport as an example for analysis. Taking the current situation of public transport in Jinan as the breakthrough point, this paper discusses the impact of public transport on the development of Jinan, and discusses the direction of improvement. At the same time, this paper puts forward some views on how to develop urban public transport in Jinan and how to realize the direction of building a central city in the Yellow River Basin.
Assessment of Service Agility in Power Distribution Company
Authors: Anil M , Suresh M. 
Published: October 2020

Abstract
Power Distribution Company (DISCOM)s are basically engaged in providing electricity to power the various customer needs of the people in its area of operation. The availability of quality power free from voltage sags, voltage swells, dips etc. without any interruption contributes to customer delight in the sector. Unfortunately, the network constraints brought in by overhead, bare conductors to convey power from generating stations to transmission Sub-stations and from there to the end consumers is a serious cause for outages to customers and create dissatisfaction among them. This paper attempts to develop assessment framework of service agility for a case DISCOM in India using multi-grade fuzzy approach. The service agility attributes are identified and classified using Importance Performance analysis (IPA). This assessment framework may helps managers of DISCOM for understanding their current service agility level and focus on the weaker attributes to enhance their service performance. This assessment framework can help DISCOM’s managers to understand their current level of service agility and focus to improve their service performance.
Synthesis and characterization of natural fiber reinforced laminated thermoplastic composite
Authors: Vijayabhaskar S , Rajmohan T , Kennedy E Isaac , Krishna T Jayanth 
Published: October 2020

Abstract
As increase in the use of eco-friendly, natural fibers are used for the reinforcement of polymer composites which has the light weight and low-cost polymer composites with better mechanical properties which offers exceptional properties over glass fiber. In this work, Basalt fiber reinforced Polypropylene (PP) laminated composite was manufactured by the compression moulding process. The variations of impact, flexural and compression strength and modules of the composite according to the number of basalt fiber layers were investigated. Scanning electron microscopy (SEM) and Energy-dispersive X-ray (EDX) conducted on the surface of the composite reveal the superior interfacial linkage between the basalt fiber and PP matrix. Hence, this offers a comprehensive discussion on synthesis and characterization of basalt fiber with polypropylene reinforced laminated thermoplastic composite.
Preparation and analysis of the thermal properties of non-toxic eco-friendly vegetable based oils
Authors: Sathishkumar S D , Rajmohan T 
Published: October 2020

Abstract
Cutting fluids play an important role in increasing the efficiency of the production system. Vegetable based cutting fluids produce less harmful effects to the environment thereby leading to the cleaner production system. In the present study, vegetable oils such as Neem and Karanja oils are blended in three different proportions which are used to improve the thermal performance of the vegetable based cutting fluids. Density, viscosity, flash point and fire point are the quality parameters used to analyze the thermal properties of vegetable oils were also studied. Triple Necked Round Bottom flask setup is used for mixing the two vegetable oils in different proportions. The experimental results reveal that the combination of 25% Neem and 75% Karanja proves to be the efficient vegetable oil for sustainable production in the modern industries.
Application of Evolutionary Algorithms to Predict Mechanical Properties on Natural Fibers – A Review
Authors: Prasanth Kumar R , Rajmohan T , Vijayan D 
Published: October 2020

Abstract
Natural fibers are an abundant source in nature, having an inherent property in which include biodegradable, decomposable and cost efficient. Moreover, they exhibit extensive mechanical properties such as tensile modulus, flexural modulus than synthetic fibers when reinforcing polymer resins. However, adding inappropriate levels of quantity of resins misleads on obtaining desired mechanical properties. Several approaches have been utilized in the past decades to get desired mechanical properties on the natural fibers, in which applying evolutionary algorithms are the most recent and familiar in the composite research community. Therefore, in this study an application of evolutionary algorithms on natural fibers are presented. This objective of the review is to provide detailed information of the natural fibers along with its recent algorithmic approaches. Moreover, the effect of various treatments and its changes in mechanical, thermal and electrical properties of matrix.
Analysis of Power Consumption in the drilling of Nano SiC reinforced Aluminium matrix composites
Authors: Kalyan Chakravarthy V. V. , Rajmohan T. 
Published: October 2020

Abstract
Nanoceramic particles reinforced Metal Matrix Composites (MMNC) have gained immense attention from both the scientific and industrial community. The employment of these advanced class materials in the industries has given many advantages. These Nanocomposites are very difficult to machine, and the number of holes is to be drilled on their surface for many applications as drilling is considered as one of the significant applications in the industry. The researchers and industrial experts are striving very hard to attain green manufacturing techniques in drilling, which creates less impact on the environment and consume lower power. The main aim of current research is to analyse the power consumption in the drilling of Nano silicon carbide (SiC) reinforced Aluminium (Al) matrix composite under various machining conditions, cutting speeds, feed rates. For this purpose, a series of experiments have been planned using Taguchi’s L18 orthogonal array. The drilling tests were performed using a vertical machining centre (VMC) which is controlled by computer numeric control (CNC) employing carbide drills of 10mm dia with cutting point angles of 90°, 118° and 135°. The machining operation is performed under Dry cutting and Cryogenic cutting condition. On successful completion of the experiments, the surface morphology is studied using Field Emission Scanning Electron Microscopy (FESEM).