bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dispatching and Scheduling of the Lock Chamber of Three Gorges Lock
Authors: Qiangqiang Qi , Yu Zhang , Shuo Zhang 
Published: October 2020

Abstract
In order to maximize the navigation capacity of the Three Gorges and relieve the backlog of vessels, considering the regulation of navigation and the attributes of vessels of Three Gorges Hub, the concept of priority ship collection is introduced and the priority of dispatching is determined. Taking the utilization ratio of lock chamber and the mean latency of vessels at lockage as optimization target, an optimal scheduling algorithm for Three Gorge Lock chamber scheduling is proposed, which integrates two-dimensional strip packing heuristic algorithm and genetic algorithm. The proposed algorithm is tested on the vessels downlink data of Three Gorges Lock in August 2016 then compared with the manual arrangement strategy. The results show that the proposed algorithm has better performance in utilization ratio of lock chamber and the mean latency of vessels at lockage. The proposed algorithm can improve the carrying capacity of the Three Gorges ship lock to a certain extent.
Finite Element Analysis and optimization of a three-storey Parking Garage
Authors: Kesheng Zuo , Bin Gu , Shunan Hu , Jiefu Wang , Jin Wang 
Published: October 2020

Abstract
Finite element analysis is one crucial means to evaluate and optimize the stability and safety of a three-storey parking garage. The geometric model of a three-storey parking garage was built with CATIA. A finite element model was set up by HyperMesh for static strength analysis in Abaqus. It is essential to consider some key factors such as simplification of mesh model, boundary conditions, weight and loads. The strength of the parking garage under full-load was analyzed. Finally, the frame structure of the parking garage was improved based on the result of simulation.
Pricing strategy of NVOCC considering paying freight in advance
Authors: Geng Yong , Lin Qin , Chai Qingchun 
Published: October 2020

Abstract
In recent years, with the increasingly fierce competition, non-vessel operating common carriers (NVOCCs) often pay freight for some small and medium-sized shippers in advance to win more customers. Therefore, NVOCC, whose main source of profit is freight difference, will adjust the freight rate to balance the risk-benefit relationship in the business process. Based on the above business process, this paper establishes the two-sided market pricing model, analyzing the pricing strategy of NVOCC. We find that there is a positive relationship between the capacity utilization and the optimal freight rate and profit of NVOCC; there is a threshold point for the incentive degree of the paid freight in advance by NVOCC to the small and medium-sized shippers: when the incentive degree is higher than the threshold point, the NVOCC obtains the maximum profit by paying freight for some small and medium-sized shippers in advance.
Special Investigation and Countermeasure Suggestions on Electric Vehicle out-of-control Accidents
Authors: Zhang Chao , Gong Biao , He Hong-wen , Li Yi 
Published: October 2020

Abstract
The number of electric vehicles keeps increasing, and security problems are becoming increasingly prominent. Through in-depth investigations of electric vehicle traffic accidents, the characteristics and laws of typical out-of-control accidents of electric vehicles are found, and the internal and external factors and mechanisms of such accidents are analysed. By summarising typical cases, pointing out the current problems in the investigation of electric vehicle accidents, it puts forward essential investigation items, investigation methods and new technical identification schemes for electric vehicles. The study fills the gap of the lack of special investigation and identification methods for electric vehicle out-of-control accidents and helps to identify the causes of electric vehicle out-of-control accidents.
Optimization of tunnel construction parameters in soft rock section with high geostress
Authors: Li Changjiang , Zhang Yutong , Liu Chengming , Song Hengxiang , Li Ke 
Published: October 2020

Abstract
Large deformation and even collapse are prone to occur in tunnel crossing high geostress soft rock section, which seriously restricts the construction progress. Therefore, it is necessary to optimize the construction parameters of high geostress soft rock section by bench method. Based on the Wu Nv Feng extra-long tunnel, this paper calculates and analyzes the surrounding rock deformation and structural stress under different excavation height, excavation length and excavation footage. The analysis shows that 2 / 3 h upper bench height can balance the influence of bench height on construction mechanics and construction convenience; considering the construction mechanical characteristics and excavation support time, the excavation height and excavation footage should be reduced as much as possible. Reasonable bench parameters play an important role in controlling the deformation of soft rock tunnel under high geostress, which can provide reference for tunnels with similar engineering geology and construction environment.
Analysis and Optimization of automotive seat structure based on finite element method
Authors: Dongliang Geng , Fengling Gao , Xiaobing Bu , Bayi Yu , Tang Yan , Yuan Wu 
Published: October 2020

Abstract
According to the rigid design standard of automotive seat frame structure, the strength and stiffness of a vehicle seat is analyzed and optimized in this paper. The finite element analysis results show that the initial design of the seat can basically meet the stiffness requirements under most standard test conditions. However, in the front crash test condition, there is a risk of strength failure in the seat rail. Therefore, it is necessary to optimize the structure. Based on the engineering experience, local characteristics of the seat rail is modified. After conducting simulation of the improved seat structure, it is demonstrated that the seat meets all the design requirements of stiffness and strength.
The Theoretical Research on Modelling Method for the Grid Information Model of Substation
Authors: Wang Qi-xin , Zhou Qiu-peng , Zhou Li , Tang Xue-jun , Ke Fang-chao , Sang Zi-xia 
Published: October 2020

Abstract
On the basis of analyzing the logical structure of grid information model (GIM), a modeling method of GIM using the set theory is proposed for the substations. By studying the coupling principle of power flow and information flow, the GIM was defined as the interconnection between the set of physical objects and the set of information objects. Then, the GIM was decomposed into the power subsystem and load subsystem, which were described from the aspects of input, output, state changes and network structure. Under the constraints of the existing power grid network, subsystems were connected in accordance with rules from different perspectives to form the complete GIM system.
Research status of transportation field based on keyword co-occurrence analysis
Authors: Chun-xiao Zheng , Yao Lin , Yang Wang , Ya-fei Yan , Xiao He , Ya-juan Zhao 
Published: October 2020

Abstract
Transportation is the leading and basic industry in the national economy. It is an indispensable and irreplaceable part of social production and living organization system. The macro analysis of the literature in the field of transportation can provide a new perspective for researchers and managers. This paper uses vosviewer software, based on the keyword co-occurrence relationship of literature, to cluster the conference documents published by the Transportation Research Board of the United States from 2015 to 2019, and analyze in detail eight key areas, including aviation, highway, marine transportation, motor carriers, pedestrians and bicyclists, pipelines, public transportation and railroads. The above analysis reveals the research status of the whole and 8 key sub fields in the field of transportation, so as to provide support for science and technology planning and decision-making in the field of transportation.
Optimization of Railway Express Freight Trains Operation Plan under the Competition of Highway and Railway
Authors: Liu Chang 
Published: October 2020

Abstract
In recent years, China’s economy has developed rapidly, especially in the Internet industry and e-commerce. These have led to the rapid growth of the express industry. The express delivery industry has a huge demand for transportation. However, due to the speed and convenience of highway, the highway transportation occupies a large market share. Due to relevant policies and the inadequate transportation capacity resource allocation, a large number of medium and long-distance freight flows that are suitable for railway transportation choose highway transportation. This not only greatly reduces the profits of the railway transportation department, increases the carbon emission of the transportation system, but also makes the load of some road sections higher than expected. Therefore, in order to protect the environment and enhance the market competitiveness of the railway department, the optimization of the railway express freight train schedule is an urgent task.
On the basis of previous research results, this paper first calculates the generalized cost of highway and railway from the perspective of the cargo owner, and finds out whether the cargo owner will choose railway, that is, which freight flow will be attracted to the railway. Then, with the maximization of the profits of the railway department as the objective function, the 0-1 integer programming model is established under the constraints of railway transportation capacity, freight transportation time and decision variable value restrictions, etc. Finally, a small-scale example is designed. After put the data into the model, the optimized operation plan of railway express freight trains is obtained.
Analysis and Prospect of the current Development of China’s transportation industry: Based on the evaluation index system of transportation power
Authors: Zhang Xinxin 
Published: October 2020

Abstract
The transportation industry is the country’s basic industry, in 2019, the State Council first proposed the transportation power development program. This paper introduces the background and current development of China’s transportation industry, focusing on the evaluation index system of traffic strength, analyzes the current situation of China’s transportation industry. The overall situation is large but not strong, and there is a certain gap compared with developed countries. Finally, the development trend of the transportation industry is prospected.
Study on the Optimization of Air-rail Intermodal Network Layout in The Beijing-Tianjin-Hebei Region under the Background of Xiong’an New Area
Authors: Qianli Zhang , Jie Ouyang , Rui Shang 
Published: October 2020

Abstract
The construction and integration of infrastructure is the hardware foundation for the air-rail intermodal system. The overall structural characteristics and traffic radiation range of The Beijing-Tianjin-Hebei Regional railway network were analyzed with complex network theory. The railway structures including four major airports of The Beijing-Tianjin-Hebei Region were analyzed. The corresponding optimization ideas are put forward based on the current railway network and existing planning.
Research on the Location selection of Logistics Transshipment Center base on “16+1 Cooperation”
Authors: Lingling Tang , Zhengying Luo 
Published: October 2020

Abstract
Since the launch of the “16+1 Cooperation”, political mutual trust between China and Central and Eastern Europe Countries (CEECs) has been increasing, and economic cooperation relationship has continued to advance. Aiming at the demand of international strategic development ‘going global’, this paper analyzes the development trend of logistics and establishes a mathematical model for location selection of the logistics transshipment center of Chinese enterprise based on the demand of cargos and the transportation distance. According to the total trade volume of the CEECs from 2013 to 2017, the paper introduces the Artificial Fish Swarm Algorithm (AFSA) to solve the model and finds the optimal logistics transshipment centers under different number of locations. The results show that AFSA is suitable for location selection of the logistics transshipment centers and can provide an important reference for China’s logistics enterprises.
Objective Framework Design for National Road Safety Strategic Plan
Authors: Gong Baiyan 
Published: October 2020

Abstract
It is important to formulate road safety strategic plan for improving road safety. The road safety strategic plans of several other countries in the world are studied in this paper. The differences between China’s road safety plan and other countries’ are obtained. We can design the objective framework of China’s road safety strategic plan from the perspective of technology, and put forward specific suggestions for formulating China’s road safety strategic plan.
Friction Stir Processing – A Review
Authors: Arun Premnath A. , Tamilarasan A. , Prasanth Kumar R. 
Published: October 2020

Abstract
Friction stir processing (FSP) is a solid state surface modification technique which is recently used to fabricate surface composites. Friction stir processing is an extension of friction stir welding which is developed by the welding institute of UK in 1991. In FSP a rotating tool consist of a pin and a shoulder is inserted into the material which is in the form of a sheet. The main advantages of FSP includes grain refinement and the uniform distribution of reinforcement particles that improves the mechanical and wear properties of the surface composites compared with the as cast alloys. In the review paper a detailed analysis was done on the mechanical and wear properties of the composites fabricated by FSP.
Review on road marking paint machine and material
Authors: Naidu Vyankatesh , Bhaiswar Vinod 
Published: October 2020

Abstract
Road marking plays important role is maintaining traffic and guiding drivers to drive vehicles in proper way. this paper summarizes the continuous analysis and research of road marking paint machine, road marking paint applicator and road marking paint materials. The paper includes review of advance technology used in detection of road marking and recognition of road marking as well. Various types of road marking materials such as retro-reflective thermoplastic paints, cold plastic paints, water based paints, glass on bead paints and primer. Different types of road marking paints have some similar and some different properties which can be used as per requirement of work.
Influence of nanoparticles on the characters of polymeric composites
Authors: Vinayagamoorthy R. , Subrahmanyam K. S. , Murali Krishna Murthy K. , Arun Prajwar K. , Gopinath P. , Sai Lahari M. , Pruthvi Rangan K. 
Published: October 2020

AbstractThe need of structural materials is inevitable for machineries, equipment’s and tools. These materials are mostly made up of metals and polymeric composites and with other materials in rare cases. Polymeric composites nowadays replace almost all materials due to its improved characters and reduced manufacturing costs. The characters of these polymeric composites are improved by reinforcing multiple fibers in it and thus enhances its suitability for different applications. Among the characters of a composites, weight reduction is a vital property that decides the usability of the material in high end applications like aircraft, robots etc. Weight of composites could be enhanced without losing its characters by reinforcing nanoparticles in different forms. Several nanomaterials have been utilized by researchers in various forms and they are proven to be the best in enhancing the characters of the composites. The present research gives a clear picture on the different challenges during the synthesis, fabrication and characterization of nanoparticles reinforced plastic composites.
Multi response Optimization of Welding Parameters in Dissimilar Plasma Arc Welded Joints Using RSM Based GRA Coupled with PCA
Authors: Palani K , Arunprasad S 
Published: October 2020

AbstractThe quality of the joints is essential to achieve customer satisfaction and earning profit in manufacturing industries. This work investigates the multi-response optimization of the plasma arc welded (PAW) process parameters of the dissimilar Ti-3Al-2.5V titanium alloy and AA8011-H24 aluminium alloy joints using RSM based GRA coupled with PCA. The principal component analysis is incorporated into the response surface methodology based grey relational analysis to achieve the optimum responses viz., tensile strength and tensile elongation with the welding parameters, viz., welding current, torch angle, gas flow rate and welding speed of the PAW joints. The response surface and contour plots are used to study the effect of parameters of the joints. The welding speed is the most significant parameter on the composite welding quality index (CWQI) followed by welding current, gas flow rate and torch angle to decide the quality of the joints at the optimal levels.
Electro-chemical corrosion Behavior of Vegetable oil-Based Engine oil
Authors: Ellappan R. , Arumugam S. , Santhanam V. 
Published: October 2020

Abstract
Progressive development of bio-lubricants is the need of the day for replacing petroleum-based lubricants in terms of dependency and degradation. Though the developed lubricants meeting out the properties of petroleum-based lubricants, the hygroscopic nature of the lubricants derived from vegetable oils are suspected to deteriorate the metal surfaces by corrosion. The vegetable oil-based engine oil was formulated via chemical alteration method. The mobility of ions is the key factor for electro-chemical corrosion. In this work we executed the corrosion study of engine oils on metallic coupons through electro-chemistry technique. therefore, vegetable oil-based engine oil and synthetic engine oil were tested in conductivity test using Galvanic cell. In this Galvanic cell, Tetra butyl ammonium perchlorate is used as a catalyst to enhance the mobility of ions in engine oils (electrolyte). The test coupons of ferrous and non-ferrous metal are considered as electrodes. The Tafel plot and impedance curve showed that the corrosion rate for the given current potential is not in the measurable range. Therefore, the electro-chemical corrosion study is not a suitable method to evaluate the corrosion rate of metals on viscous fluids like vegetable oil-based engine oil.
Friction Stir Welding and Friction Stir Processing of Dissimilar Alloys: A Review
Authors: Palani K , Elanchezhian C 
Published: October 2020

AbstractThe present work is focused on friction stir welding and friction stir processing of dissimilar alloys due to its emerging technique applied in the wide area of applications viz., aviation, ship building, defence industries etc. In recent years, the novel solid-state joining techniques viz., friction stir welding and friction stir processing are applied in joining of dissimilar alloys even though there is the difference in mechanical properties and chemical composition of the alloys. Due its eco-friendly, versatile and energy-efficient process, these are implemented to reduce the harmful effects and formation of defects in joining of dissimilar alloys compared to the fusion welding techniques. The specially designed non-consumable rotating tools are used in joining process by generating frictional heat between the tool surface and alloys to produce the sound welds. This work discusses the status, opportunities and challenges of above processes in joining of dissimilar alloys, viz., aluminium, steels, titanium etc.
Design and performance study of a gas-Cherenkov detector with an off-axis parabolic reflector for inertial confinement fusion experiments
Authors: SONG Zifeng , ZHU Bin , XIAO Yunqing , XU Tao , LIU Zhongjie , WU Yuchi , ZHAN Xiayu , YI Tao , CHEN Jiabin , TANG Qi 
Published: October 2020

Abstract
In this work, the gas-Cherenkov detector with an off-axis parabolic reflector (OprGCD) is designed using the Geant4 Monte Carlo simulation toolkit, which is helpful to improve the collection efficiency of Cherenkov photons. The method to study the performance of OprGCD based on femtosecond laser-wakefield-accelerated electron beams is presented. Cherenkov signals with high signal-to-noise ratio were obtained, and the measured Cherenkov signals changing with the CO2 pressure were consistent well with the simulation results. The design and study of this OprGCD system lay the foundation for the application of fusion gamma diagnostics system in large laser facilities of China.
First results of negative ion extraction with Cs for CRAFT prototype negative beam source
Authors: XIE Yahong , HU Chundong , WEI Jianglong , XU Yongjian , JIANG Caichao , GU Yuming , ZHAO Yuanzhe , LIANG Lizhen , XIE Yuanlai 
Published: October 2020

Abstract
In order to understand the physics and pre-study the engineering issues for radio frequency (RF) negative beam source, a prototype source with a single driver and three-electrode accelerator was developed. Recently, the beam source was tested on the RF source test facility with RF plasma generation, negative ion production and extraction. A magnetic filter system and a Cs injection system were employed to enhance the negative ion production. As a result, a long pulse of 105 s negative ion beam with current density of 153 A m−2 was repeatedly extracted successfully. The source pressure is 0.6 Pa and the ratio of co-extracted electron and negative ion current is around 0.3. The details of design and experimental results of beam source were shown in this letter.
Mortality Tracker: the COVID-19 case for real time web APIs as epidemiology commons
Authors: Almeida Jonas S , Shiels Meredith , Bhawsar Praphulla , Patel Bhaumik , Nemeth Erika , Moffitt Richard , Closas Montserrat Garcia , Freedman Neal , Berrington Amy 
Published: October 2020

Abstract

Motivation
Mortality Tracker is an in-browser application for data wrangling, analysis, dissemination and visualization of public time series of mortality in the United States. It was developed in response to requests by epidemiologists for portable real time assessment of the effect of COVID-19 on other causes of death and all-cause mortality. This is performed by comparing 2020 real time values with observations from the same week in the previous 5 years, and by enabling the extraction of temporal snapshots of mortality series that facilitate modeling the interdependence between its causes.

Results
Our solution employs a scalable ‘Data Commons at Web Scale’ approach that abstracts all stages of the data cycle as in-browser components. Specifically, the data wrangling computation, not just the orchestration of data retrieval, takes place in the browser, without any requirement to download or install software. This approach, where operations that would normally be computed server-side are mapped to in-browser SDKs, is sometimes loosely described as Web APIs, a designation adopted here.

Availabilityand implementation
https://episphere.github.io/mortalitytracker; webcast demo: youtu.be/ZsvCe7cZzLo.

Supplementary information
Supplementary data are available at Bioinformatics online.