bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization model and algorithm of logistics distribution path based on urban road network time-varying
Authors: Cheng Zhang , Ji Wenqian , Lu Xingjun 
Published: December 2019

Abstract
In the urban road network, the speed of different sections is different; In the same road section, the speed is different at different times. Therefore, on the basis of considering the temporal variability of the road network, this paper takes the shortest delivery time as the optimization objective to find the optimal logistics distribution path between the urban logistics distribution nodes in different time periods. Based on this, an urban logistics distribution path optimization model with the shortest delivery time as the optimization objective is established. In order to improve the solution quality and efficiency of the model, the time impedance matrix of urban logistics distribution network was constructed and an improved distance matrix algorithm was designed to solve the model. Finally, an example is given to verify the effectiveness of the model and algorithm.
Research on Optimal Path Selection of Muck Truck Considering Time Cost and Safety Risk
Authors: Shang Fangjian , Wang Fujun , Zhang Xiaofeng , Bi Jun 
Published: December 2019

Abstract
The safety problem of muck trucks has attracted more and more attention. How to balance the economic benefit of transporters and the safety of muck trucks has become a urgent problem to be solved. In this paper, the two factors of the time cost of the muck truck and the safety risk during the transportation are considered comprehensively (in order to simplify the discussion, the situation of single starting point and single destination is considered), and the path of the muck truck is optimally selected. Taking the construction waste disposal sit of Qingcaigou in Xi’an as an example, the model is constructed and the Dijkstra algorithm is used to solve the problem.
An Optimal Plan of Transportation Terminals in Metropolitan Area
Authors: Xiong Yang , Shao Chun-Fu , Wang Jing 
Published: December 2019

Abstract
Development of metropolitan area in China has attracted a lot of attention. At this stage, planning of transportation terminals focuses on cities, rather than metropolitan area. In order to achieve the goal of transport integration, it is crucial to propose an optimal plan of transportation terminals in metropolitan area. This paper proposes a coherent set of method to optimize transportation terminals in metropolitan area, including classification of cities and planning of transportation terminals. Classification of cities is based on hierarchical clustering method, and planning of transportation terminals is based on classification standards of the multimodal transportation terminal. Then a case study in Jingjinji metropolitan area has been verified. This method has advantages of less data, simplicity and compatibility of existing terminals. On the basis of exiting and planning terminals, the integrated transit system can be built.
Application of Metal Wear Self-repair Technology in Automobile Engine Maintenance
Authors: Liu Changrun 
Published: December 2019

Abstract
This paper analyzes the structural composition of the engine, combined with the relevant content of metal wear self-repair technology. Such as technical definition, working principle, technical characteristics, etc. Through the study of common fault performance of automobile engines, including failure to start, abnormal color of exhaust gas, abnormal noise etc. As well as the specific application of metal wear self-repair technology in the case of cylinder wear is not serious, cylinder and piston ring damage is serious, pull cylinder failure, etc. The purpose is to improve the engine repair efficiency and extend the service life of the car engine.
Research on High Temperature Aging Detection Method of Heat Resistant Steel Based on Nonlinear Ultrasound Detection Technology
Authors: Wang Danqi , Ling Yuanjin 
Published: December 2019

Abstract
Rapid detection of high temperature aging process and early damage is very important for TP347HFG austenitic heat resistant steel, which is brittle and has short stable expansion period. Nonlinear ultrasound technology is sensitive to micro-nano scale defects and has great potential in early damage detection. The relationship curve between thermal damage degree and ultrasonic nonlinearity coefficient is obtained by using non-linear ultrasound technology, and the microstructure evolution characteristics of materials are analyzed. The results show that the ultrasonic nonlinearity coefficient of TP347HFG steel increases with aging time. The maximum point appears at 500 h and then increases monotonously. This trend is related to the formation and loss of conformal strain state. The experimental results provide a theoretical basis for the non-linear ultrasonic testing of TP347HFG steel at high temperature.
Research on Leverage Effect and Risk Fluctuation of Shanghai and Shenzhen Stock Markets Based on GARCH Family Model
Authors: Wang Liting 
Published: December 2019

Abstract
The stock market is characterized by high risks. If there is asymmetric effect, the risk will be further aggravated. Therefore, it is particularly important to study the fluctuation characteristics of stock market prices and their asymmetric effects. 609 data were respectively selected from the Shanghai composite index and Shenzhen securities component index from July 1, 2005 to December 28, 2007, and 634 data were respectively selected from June 9, 2015 to December 29, 2017. GARCH family model is selected for data fitting and analysis.
The results show that: First, the optimal model of Shanghai bull market is TGARCH (1,1), bear market is TGARCH (2,1), Shenzhen bull market is TGARCH (1,3), bear market is EGARCH (1,1). Second, the Chinese stock market has an asymmetric effect. Third, the range of risk fluctuations in China’s stock market is relatively large. Finally, the problems in the Chinese stock market at the emergence stage are mentioned, and corresponding solutions are proposed. Finally, the problems in the Chinese stock market at the emergence stage are mentioned, and corresponding solutions are proposed.
The research on fair value and audit fees –Based on engineering management enterprise
Authors: Zhang Ya 
Published: December 2019

Abstract
In 2006, the new accounting standards introduced the fair value measurement model. The fair value was implemented in the listed company on January 1, 2007. In 2014, fair value was redefined and classified disclosure requirements were improved. Subsequently, the scale of assets and liabilities measured by fair value in China keeps expanding, especially in manufacturing, construction, real estate, electric power and other engineering management enterprises. The internal control problems of engineering management companies lead to audit fee standards are not standardized, and the uncertainty of fair value will worsen this situation. The greater the uncertainty, leading to increase with the risk of audit accordingly, is finally reflected in the audit fees in the form of premium. The purpose of this paper is to study the relationship between fair value and audit fees taking evidences from engineering management enterprise from 2015 to 2018 year, such as construction industry, Water conservancy, environment and public facilities management industry and real estate industry, and to further explore the condition of audit fees, and providing reference for engineering management enterprise to control and manage audit fees.
Analysis of the Whole Industry Chain of Jiang Xiaobai Sorghum Wine
Authors: Zhang Yiwen 
Published: December 2019

Abstract
This paper uses industry chain theory to analyze the product strategy of Jiang Xiao Bai. Research shows that Jiang Xiao Bai has the advantages of the flavour meets the needs of young people, upgrade manufacturing process, development in product R&D and the internet brand communication. In order to improve the current situation of Jiang Xiaobai’s product strategy and the effectiveness of Jiang Xiaobai’s industry chain strategy. This paper puts forward some countermeasures to improve the structure, strengthen product innovation, speed up new product development and deepen brand communication. Relevant conclusions can provide reference for other liquor enterprises.
Predicted model of ecological footprint based on PLCA
Authors: Shen Qiong , Liu Yaodan , Shen Qiong 
Published: December 2019

Abstract
As the global ecological environment continues to increase, the sustainability research of construction projects has become a research hotspot at home and abroad. In order to achieve sustainable development of the construction industry, research on fabricated buildings is essential. Prefabricated building construction is the key to prefabricated construction, so the study of the sustainability of prefabricated components requires more attention. This paper defines the ecological footprint types of prefabricated components, and constructs a pre-fabricated ecological footprint estimation model based on Process Life Cycle Assessment (PCLA), taking concrete prefabricated composite panels as an example. An ecological footprint benchmark for the sustainability of prefabricated building components is provided by a comprehensive estimate of the resources, energy, and extent of CO2 emissions from the prefabricated process life cycle.
The relationship between management changes and corporate debt costs based on engineering management
Authors: Wu Hui , Hu Jiewu 
Published: December 2019

Abstract
This paper takes the companies with management changes in the construction industry of Shanghai and Shenzhen in 2013-2017 as a sample, and uses the PSM-DID method to explore the impact of management changes on debt costs. The results show that the corporates’ debt costs for management changes are significantly higher than companies that have not experienced management changes. Further research found that when management change types are abnormal changes and management successors are external successors, management changes result in higher debt costs. This research provides a basis for the management decision-making of engineering management and gives useful suggestions for its engineering management.
Comprehensive cost-effectiveness study of distributed photovoltaic projects in Jiangsu
Authors: Xue Guiyuan 
Published: December 2019

Abstract
Cost-benefit analysis is to analyze the relationship between costs and benefits, measure the gains and losses of economic behaviors, and obtain the optimal combination of costs and benefits. It is one of the most effective methods to evaluate investment plans. This paper takes a distributed photovoltaic power generation project in Jiangsu as the object, analyzes its investment cost and operating cost, power generation income and other economic benefits, and accordingly establishes a cost-benefit analysis model, evaluates the economy of the project, and carries out sensitivity analysis. In addition, the environmental benefit of distributed photovoltaic project is calculated. It is concluded that distributed pv can not only achieve good economic benefits, but also have good emission reduction benefits.
Dynamic Schedule Method Based on Rolling Horizon Procedure for a Discrete Manufacturing Shop with Uncertain Processing Time
Authors: Li Ming , Yang Peipei , Yuan Yiping , Wang Xie , Yi Dai 
Published: December 2019

Abstract
To solve the rescheduling problem of discrete manufacturing shop with uncertain processing time, an improved ant algorithm based on the rolling horizon procedure is proposed. The dynamic scheduling strategy is based on a hybrid scrolling mechanism driven by events and cycles. Analysing disturbances in the process, we divide them into explicit and implicit disturbances. The length deviation tolerance (LDT) of processing time is designed and proposed to filter out redundant rescheduling. The dynamic scheduling algorithm, based on improved ant colony algorithms, is considered with the resource constraint of the shop, and with the use of a customized state transition rule, it helps to overcome the drawbacks of long ant path searching prone to stagnation. Using simulation, the performance of the dynamic scheduling strategy and scheduling algorithm are analysed and verified, and better rolling scheduling policy parameters are obtained.
Research on Asset Management of Power Grid Engineering Based on Asset Group
Authors: Rui Yun , Hu Zhuzhou , Qian Sun , Li Yang , Wei Ran , Tang Qing 
Published: December 2019

Abstract
In recent years, with the slowdown in power generation, the reform of transmission and distribution prices has continued to deepen, and objectively requires more precise management of projects invested by power grid companies. This paper takes the asset group as the evaluation unit of grid engineering asset management, starts with the characteristics of the asset group, expounds the scope and division criteria of the asset group, and determines the asset group classification. The cost and benefit sharing method of the asset group is proposed. The actual cost method is used to collect the components of each asset. The electricity and cash flow based methods are used to separate the asset groups of the transmission and distribution networks. The proceeds are apportioned. The asset group input-output evaluation system was constructed. Through the multi-dimensional selection of indicators reflecting the input and output of the asset group, a comprehensive evaluation of the operation of the asset group was made. The cost-benefit sharing method and input-output evaluation system proposed in this paper can effectively guide the asset management of power grid projects and assist the power grid companies in making decisions.
Research on the Influencing Factors of Power Demand in China
Authors: Song Haixu , Zhang Xiaoxuan , Li Rui 
Published: December 2019

Abstract
Based on the data from 2003 to 2017 of China, this paper analyzes the influencing factors of power demand in China. The results show that the improvement of economic development and the growth of the economic contribution rate of the secondary industry both lead to the increase of electricity demand. The improvement of urbanization level and the reduction of unemployment rate are also important factors driving the electricity demand. While the price of electricity has little impact on the demand, which can be accredited to the electricity price policy of China. Electricity price is mainly regulated rather than fluctuating with the supply and demand of the market, thus it is relatively stable. The conclusions of this research can be used to guide the planning and management of power companies, which is of great significance for them to accurately predict electricity consumption, scientifically plan power grid projects, and further improve investment efficiency.
Application of a novel grey model with dynamic background value to forecast nuclear generation in China
Authors: Xiang Xiwang , Peng Zhang , Yu Lang , Yang Lizhi 
Published: December 2019

Abstract
Nuclear generation is an important energy construction task in China, which is regarded as the work focus of the next stage by the government. Achieving accurate predictions of nuclear generation behavior will effectively improve energy dilemma and further promote energy economics in China. In our work, the error of the classical grey model is analyzed. And a novel grey model optimized background value with series parameters is proposed, which enables more accurate calculation of background values. The application case results show the proposed model outperforms other grey models in forecasting nuclear generation in China.
An Experimental Research on Decision-making Behavior in Long-term Engineering Project Investment
Authors: Gao Kai , Wang Hui 
Published: December 2019

Abstract
To investigate the mechanism of decision-making in Long-term engineering project investment, we examined the relationship between investment behavior rigidity and decision makers’ personality. Firstly, we developed an investment decision experiment to measure their behavior rigidity. Secondly, we used the Scale based on the Big Five personality of the International Personality Item Pool to measure their personality. Thirdly, we investigate the relationship between investment behavior rigidity and the Big Five personality. The results are summarized as follow. First, decision makers with higher scores in openness have stronger investment behavior rigidity, and two factors of risk and rationality have a significant impact on investment behavior rigidity. Second, decision makers with higher scores in neuroticism have weaker investment behavior rigidity, and the four factors of anxiety, depression, Immoderation and Vulnerability have a significant impact on investment behavior rigidity. Third, decision makers with higher scores in extroversion have stronger investment behavior rigidity, and the two factors of gregariousness and assertiveness have a significant positive impact on investment behavior rigidity.
The Study on the Management of Entrepreneurship Engineering Based on Art Design
Authors: Lv Yajie 
Published: December 2019

Abstract
The engineering management is not a simple equation, such as “engineering management=engineering technology + economic management”, since there is rich connotation and significance between them. Almost all entrepreneurs have simple technology and lack scientific management for entrepreneurial engineering, which leads to the difficulty to start a business. In this paper, it starts from the related theories of engineering management and entrepreneurial engineering to make specific analysis on some problems. As a result, it explores the management methods and measures of the entrepreneurial engineering of art design, so as to promote the development of entrepreneurship.
Research on Improvement of Entrepreneurship Project Management Ability
Authors: Yang Juan 
Published: December 2019

Abstract
Project management is a kind of power of action and a way of thinking, which is not only beneficial to the work of project managers, but also to the future development of enterprises and individuals. Entrepreneurial projects are synchronized with enterprise projects, and the introduction of project management concepts is conducive to the success of entrepreneurship. Taking the opportunity of the reform of contemporary higher education, this paper, from the perspective of theoretical elaboration, market research and project management system analysis, recognizes the problems existing in the entrepreneurship project management ability, and dialectically demonstrates the strategy of improving entrepreneurship management ability, so as to provide reference for education of entrepreneurship and employment.
The Exploration and Application Research of Emerging Technologies in Operation and Maintenance of Large Power Grid Enterprises
Authors: Zhang Yong , Jin Liu , Wang Yini , Liu Haoyang 
Published: December 2019

Abstract
The new round of information technology revolution represented by big data, cloud computing, internet of things, artificial intelligence and mobile internet has created conditions for the application of operation and maintenance services in power grid enterprises. This paper deeply analyzes the development status and trend of the application of emerging technologies and its impact on power grid enterprises. This paper analyzes the problems existing in the application of emerging technologies in operation and maintenance services, such as the low level of intelligence of power grid equipment, the low level of intelligence of state detection, the management data of operation and maintenance specialty to be integrated, and the poor connection with materials, marketing and other specialties, etc., and puts forward the key points and directions of the application of emerging technologies in power grid enterprises’ operation and maintenance services.
Assessment of Bending Reinforced Concrete Beams Crack Resistance
Authors: Nuguzhinov Zh S , Bakirov Zh B , Yu Kurokhtin A , Khabidolda O , Nuguzhinova A 
Published: December 2019

Abstract
The problem of determining the stress state in a section of bending reinforced concrete beams with an initial and operational cracks has been solved analytically. To this end, a system of two nonlinear algebraic equations has been obtained from the equilibrium conditions of the part of the beam cut along the crack line. From this system, for a beam with an initial crack, the height of the compression zone and the nominal stress at the crack tip are determined, and for an operational crack, the height of the compression zone and the length of the crack are determined. The remaining parameters of the stress state are expressed in terms of these values. There is also determined the value of the external moment above which an increase in the initial length of the crack occurs.
Determining the stress intensity factor (SIF) is based on the assumptions that the longitudinal forces are equal at the crack tip, with and without stress concentration. The size of the stress concentration zone is determined from the condition that the local stress is equal to the nominal stress. On this basis, the formula for determining the SIF is obtained. The paper analyzes the SIF dependence on the crack length and the bending moment.
The method of calculation is valid for beams of arbitrary cross-section, but explicit dependences are given for beams of rectangular cross-section most frequently encountered in production.
The results obtained allow estimating the bearing capacity of beams with a crack, as well as their crack resistance according to the force criterion of fracture mechanics.
Thermodynamic Prototype Research of Vernacular Architecture Based on Climate Adaption
Authors: Tao Simin , Chen Huanyan 
Published: December 2019

Abstract
Climate adaptation represents the thermodynamic state of building systems by feedback of form, material and spatial organization. This article proposes a new method to research the climate adaptability of vernacular architecture. Taking Shentan Village settlement as a case study, we search for the architectural prototype from the perspective of thermodynamics by simulations of LADYBUG+HONEYBEE tools, extract the architectural elements related to the specific climate characteristics, and systematically analyse the internal logic of energy flow in vernacular buildings by energy systems language.
Analyzing Organization-to-project Interfaces in the Integration Management of Engineering Projects
Authors: Yu Jialu , Yang Qing , Yang Na 
Published: December 2019

Abstract
To carry out the construction project management work effectively, the organization interface management in the workflow is a fundamental challenge.In the ongoing project, multiple project teams need to cooperate multi-party andcomplete project product delivery in different work interfaces. Organizational interface withinworkflow will help system planning and management in the engineering field. In this study, we first propose the evaluation indicators of engineering participants and tie strength between different organizations usingthe design structure matrix (DSM). Then we construct a multi-domain matrix (MDM) based on organization-to-project by correlating multiple participants in the project with the workload completion degree and present a comprehensive strength between the organization and the project to identify the crucial project interface.Finally, we give an engineering case to illustrate the proposed method and discuss its practical value. The proposed methods reinforce several managerial practicesfor the construction organization and project arrangement.