bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on Solidification Process of ZL114A Wheel Casting
Authors: Zhang Yi 
Published: September 2019

Abstract
In this paper, three different solidification process design schemes of the ZL114A wheel casting are discussed, in according with the comparative analysis of metallurgical quality statistics, a solidification order from bottom to top and from outside to inside is attained by adjusting the chiller material and reducing the pouring temperature, which meets the HB963-2005IIcasting standards. The average tensile strength, yield strength and elongation of the T6 state are 340MPa, 260MPa and 6.5% respectively after the T6 heat treatment and the low temperature stabilization process. The average grain size of the primary α-Al matrix is about 86μm after adding 0.11%Sb element, the morphology of the binary and ternary eutectic Si phases that distributed nearby the grain boundary are spherical and elliptical, the fracture mechanism of T6 state shows a typical dimple fracture.
Study on Friction and Wear Performance of Bionic Coupling Surface Moving Pair of 45 Steel
Authors: Yang Zhuojuan , Liu Shuyi , Mao Chunyu 
Published: September 2019

Abstract
From the perspective of wear-resistant biological prototypes, the three non-smooth appearances of pits, stripes and grids are simplified abstractly. The shape, structure and material are organically coupled through reasonable mosaic and distribution. It was “replicated” on the surface of the 45 steel by using mechanical and laser processing methods. The wear test was conducted by using a microscopic wear tester. According to the test results, the wear mechanism of the biomimetic coupling morphology and the roles of the three coupling elements in form, structure and material in the wear resistance were analyzed. In this experimental condition, the wear resistance of the mesh shape is best under the same conditions; The coupling element of material plays the minimum of 3.52% in the wear resistance and the maximum will not exceed 64.2%; The pitch is between 0.65mm and 1.1mm. In the meanwhile, the wear resistance of the machined sample is higher than that of the laser processed smooth sample; When the distance is more than 1.2mm, the abrasion resistance of the laser processed sample is higher than that of the mechanical processing sample. This study has important reference value for the reasonable selection of coupling elements and coupling methods to improve the wear resistance of metal surfaces.
Evaluation of Pressure Pulsations in the SGMW B12 T255 Fuel Rail Assembly
Authors: Fu Li , Feng Suli , Xiang Weidong 
Published: September 2019

Abstract
The test is investigated magnitude of pressure pulsations in the SGMW B12 T255 fuel rail assembly and any effects on port to port flow distribution. The test bench is provided the fuel rail assembly required pressure and pulse width and period to simulate series of engine work status. The pressure pulsation results showed a significant change in the magnitude between 2000 and 3000 RPM. Flow distribution was further measured at 2000 RPM and 7ms, the finally test result is passed. After the vehicle test, it’s showed that reducing the flow rate from 1.8g/s to 1.5 g/s would further improve pulsation performance.
Research into EDM of Beryllium Foil
Authors: Wu You , Xiong Xuefeng , Pan Wenjie 
Published: September 2019

Abstract
This paper concerns with a machining experiment on the beryllium sample by electrical discharge machining (EDM), and the experiment proves the machinability in beryllium foil machining of EDM. A brass electrode was chosen for the machining, and the relationship between the tool wear and the process condition was revealed. By the alternation of the positive polarity machining and the negative polarity machining, the tool wear caused by electric erosion was furthest controlled. The foil with a thickness of (0.05~0.06) mm was achieved, and the Ra
of (0.18~0.20) μm and the P-V value of 0.78 μm were measured through white-light interference.
Simulation of pressure tank leakage based on PHAST
Authors: Yang Rili , Gai Ke , Yang Fengfeng , Zhang Guangsheng , Sun Ning 
Published: September 2019

Abstract
Chemical plants usually store hazardous chemicals in high-pressure or low-pressure storage tanks in the form of pressurization, liquefaction, and low temperature. The poisonous gas in the tank is easily diffused. If a leakage accident occurs, it will cause personal injury and environmental pollution. In this paper, based on the propane acrylonitrile project in an industrial park, Major hazard identifications were identified for the tank area (risk level is Level 1), then PHAST software was used to simulate the leakage and diffusion of acrylonitrile storage tanks. It was concluded that the greater the wind speed, the leakage pore and the more stable atmosphere, the greater the leakage and diffusion of hazardous areas. And timely and intuitive prediction of the diffusion process and scope of toxic gases provide a scientific reference for taking corresponding countermeasures and on-site control after the accident.
Method on condition assessment of pitch system based on fuzzy matter-element analysis
Authors: Zhao Shuangxi , Zhang Lei , Hou Lijun , Xiao Cheng , Zhu Xipan 
Published: September 2019

Abstract
In order to improve the real-time reliability of wind turbine and solve the effect of artificial factors, fuzzy matter-element analysis is proposed. The pitch system, which has high failure rate, is researched in this paper. The condition assessment model of pitch system is built in two steps: (1) To avoid the subjective judgment of the parameter distribution, this thesis uses 3σ rule and quartile analysis method to get the boundary data sets. The ANFIS algorithm is used to train the data to reduce the extreme value, and results of multi-feature fault detection are obtained. (2) Results from fault detection are applied in condition assessment model based on fuzzy matter-element analysis to realize the unification of fuzzy value of detection result and grade assessment. The method is applied to test the actual operation state of wind turbine. The results show that it can obviously reflect the pitch system and has better assessment effects.
Simulation of the in-cylinder working process of an Opposed-Piston Free-Piston Linear Generator
Authors: Zhu Y , Tang Z , Feng H 
Published: September 2019

Abstract
Due to the potential application on hybrid, an opposed-piston free-piston linear generator (OPFPLG) is designed, and its operating principle is described. According to its structural parameters and motion characteristics, the mathematical model is established, including the dynamics, thermodynamics, and control equations. The simulation model based on Matlab/Simulink platform is set up for numerically analyzing its performance. The result of the simulation generally accords with the design expectation, and the in-cylinder characteristics of the OPFPLG is analyzed. The indicate power is 6 kW and the mechanical efficiency is 38.2% in the simulation model. The influence of variable parameters – mass and ignition advance angle – is illustrated and discussed.
Study on key influencing factors of magnetic autotrophic denitrification reactor
Authors: Yu Cong , Wang Jiabin , Zhang Dong , Li Tianhang 
Published: September 2019

Abstract
Under the condition of inoculating autotrophic denitrification sludge cultured earlier in the laboratory by constructing a magnetic autotrophic nitrogen removal reactor, the effect of the change in the range of Influent ammonia nitrogen loading at 0.05KgN·m-3 d-1-0.2KgN·m-3 d-1, pH = 6 ~ 8, COD concentration in 0-300mg/L on the treatment efficiency of autotrophic nitrogen removal process was investigated. Research shows that, magnetic autotrophic denitrification reactor has better resistance to ammonia-nitrogen shock load. When the influent ammonia nitrogen concentration was 400mg / L (ammonia nitrogen loading was 0.2 KgN·m-3 d-1, the autotrophic nitrogen removal efficiency could be ensured. PH had obvious effects on short-cut nitrification and anaerobic ammonia oxidation in magnetic autotrophic denitrification reactor. Too high or too low pH had great effect on nitrogen removal efficiency of the reactor. At pH=8, the removal efficiency of total nitrogen is up to 60%, and the efficiency of autotrophic nitrogen removal is the best. The presence of appropriate organic carbon source is helpful to improve the efficiency of nitrogen removal. When the influent COD concentration is 100mg/L, the nitrogen removal efficiency of the reactor is the highest, and the removal rate of total nitrogen is 74%.
Research on Electricity Supply Forecasting Model and Application of China Adapting to Supply-Side Structural Reform
Authors: Liu Qing , Zhang Lili , Zhang Chuncheng , Tan Xiandong 
Published: September 2019

Abstract
Since 2012, China’s economy has entered a new normal of declining potential growth rate, mainly due to insufficient effective supply, structural imbalance and mismatch between supply and demand. In order to solve the structural problems of China’s economic development, since 2015, the government has made major theoretical innovations and decision-making arrangements for supply-side structural reform. Electric power industry is the key area and important support of supply-side structural reform. In order to simulate and forecast the electric power supply situation under the structural reform of supply side, this paper uses Long-range Energy Alternatives Planning (LEAP) model to construct the energy processing conversion module, and optimizes the power generation module based on the principle of minimum cost. In this model, power generation capacity, electricity generation and carbon emission is calculated under both basic and active supply side structural reform scenarios. Under the active supply side structural reform scenario, the results show that China’s power generation capacity and electricity generation will reach 5949 GW and 16.1 billion MWh in 2050 respectively, and the proportion of clean energy for both power generation capacity and electricity generation increased significantly. China’s carbon dioxide emissions from energy combustion will peak in 2023, with a peak of about 9.87 billion tons.
Research On Explosive Fracturing Technology Of Liquid Explosives In Micro-cracks In Low Permeability Reservoirs
Authors: Wu Jinjun , Liu Jing , Zhao Junzhong , Du Fangli 
Published: September 2019

Abstract
In this paper, the experimental methods and related explosion parameters calculation methods for liquid explosive explosion technology satisfying the explosion critical dimension of 2 mm are introduced. Studies have shown that the developed liquid medicine meets the needs of explosion reconstruction joints with seam crack width greater than 2 mm, it basically determined its formulation and performance optimization parameters. The detonation speed of 1500-3500m/s can be applied to the process test design requirements of different lithological characteristics; The safety and feasibility of on-site construction were verified by the horizontal well CZ44-58 process test application, which provided a reference for optimizing the performance design of liquid drug performance, which laid a foundation for the experimental application research of micro-crack explosion stimulation technology and technology in low permeability oil layer.
Study on the Theory of Rafael Moneo Architectural Typology
Authors: He Ming , Qi Jingyi 
Published: September 2019

Abstract
With the rapid development of construction industry, large-scale construction ignored the historical tradition, destroyed the urban texture, and gradually disconnected the architectural theory and practice. Rafael Moneo believes that architects should be rooted in their own country cultural background to analyze the rationality of the site and create modern local architecture belonging to their country. Moneo attaches great importance to the historical tradition and social culture and takes an active part in the architectural practice. The study of his works which combine modern rationality and traditional humanism can provide a reference for solving the problems faced by architectural circles. We briefly introduce Moneo type theory with the comparison and analysis. On the basis of typology, this paper analyzes and interprets the forming process of some of his representative works, and it expresses abstract spirit in modern form to create a unique spiritual place.
The Protection And Significance Of Regional Characteristics Of Jinan Traditional Dwellings In Urban Renewal
Authors: Wei Shurun 
Published: September 2019

Abstract
Combining the preciseness of northern quadrangle courtyard with the smart beauty of southern dwellings, Jinan traditional dwellings have its own remarkable characteristics due to the unique geographical environment factors. With a long historical accumulation, Jinan dwellings contain a profound cultural heritage and spiritual connotations. Although people’s awareness of protecting ancient residential buildings is gradually enhanced, it is easy to ignore the regional characteristics, which could lead to the phenomenon that our cities are becoming the same. Therefore, in the process of urban renewal, only by better protecting the regional characteristics of ancient architecture and excavating the artistic style and cultural connotation, can the traditional urban context be inherited, integrated and developed in modern architecture.
Creative Destruction and Commercialization of Traditional Villages: Likeng, Wangkou, and Jiangwan in Wuyuan, China
Authors: Zhang Jing , Long Bin , Zhao Yao 
Published: September 2019

Abstract
Since the latter half of the 20th century, rural communities with unique place-based assets have been re-imagined as tourist destinations, and broad rural areas have been gradually incorporated into urban consumption systems. In some locales, traditional villages have been transformed from productive spaces to consumption spaces. Focusing on three traditional villages in Wuyuan that share similar cultural assets: Likeng, Wangkou, and Jiangwan, this study evaluated if this transformation, sometimes termed as “creative destruction,” is occurring in China’s traditional villages, and to uncover the motivations driving this change. Based on the commercialization of the traditional village space, this study found that the creative destruction model highlights the role of tourism as a dominant driver transforming a rural landscape. The case study approach is applied to three communities and the stakeholder’s benefits game is analyzed during every stage of commercialization. The most significant finding is the recognition that the creative destruction model should be revised when analyzing the commercialization stages in China’s traditional villages, especially because of the need to assimilate the influence of interested local governments and other stakeholders. Furthermore, the revised model may reveal future development directions from productive rural landscape to diversified hybrid landscape.
Explore on color design of facilities space for adaptation aging in China
Authors: Liu Ying , Hu Jinglin , Yu Ge 
Published: September 2019

Abstract
This study is conducted in the context of the increasingly serious aging problem in China and the increasing demand for age-appropriate facilities. This paper first analyzes the impact of color on the physiology and psychology of the elderly, then analyzes the physiological and psychological needs of the elderly for color, and finally puts forward the color design method for the facade, indoor environment and outdoor environment of aging facilities. The purpose of this study is to provide the elderly with a comfortable living, entertainment and service environment through color design.
Large-scale park infrastructure comprehensive design coordination degree measurement
Authors: Fang Jun , Wu Dingyuan , Fan Siyuan 
Published: September 2019

Abstract
With the continuous development of large-scale park infrastructure projects, engineering project management is increasingly moving towards a complex development trend. Therefore, there is an urgent need for a complex management model and technical method suitable for it. Based on the synergy theory, this paper conducts a more in-depth study on the collaborative management mechanism of such complex projects in the comprehensive design of large-scale park infrastructure. The relationship diagram of the comprehensive design subsystem of the large-scale park infrastructure was successfully established, and the subsystem function functions including the four goals of construction period, resources, quality and information were established. In addition, focusing on the information subsystem, the subsystem order index optimization is carried out, and the synergy measurement function model of the multi-objective system of large-scale park infrastructure design is constructed. Finally, combined with the actual case, the selection of the optimal plan for the comprehensive design of a large-scale park infrastructure is effectively analyzed based on the calculated system synergy metric value.
Analysis and Research on Design Sample of Urban Mobile Toilet
Authors: Liu Bo , Lin Mingyu 
Published: September 2019

Abstract
Based on the questionnaire survey of mobile toilet users, this paper designed the four different samples of urban mobile toilets according to the research results, which are ecological limo mobile toilet, modular mobile toilet, container-type mobile toilet and 3D printing mobile toilet. Four design features of mobile toilets, such as flexibility and mobility, technological advancement, humanistic care and ecological protection, are summarized theoretically. The current mobile toilet design are also to meet the needs of The Times development, and facilitate green travel, also promote the development of urban civilization, and provide effective reference for the construction of urban sanitation industry.
Supervision Strategy of PPP Project in Urban Underground Integrated Pipe Gallery
Authors: Fan Siyuan 
Published: September 2019

Abstract
The choice of government and social capital partner cooperation strategy in PPP mode has an important impact on the operation of the whole project, and the change of strategy of either party will be affected or influence the choice of the other party’s strategy. Therefore, the construction of the urban underground integrated pipe gallery PPP project is a process of a dynamic game between the government and social capital. It is impossible to use a single regulatory strategy throughout the life cycle of the project. This paper takes government supervision as the starting point, based on the evolutionary game theory, constructs the evolutionary game model according to the characteristics of the urban underground integrated pipe gallery PPP project, and mainly analyzes the equilibrium stability of the evolutionary game, which provides strong support for the improvement of the PPP project supervision strategy for urban underground integrated pipe gallery.
Analytical analysis of stress and displacement for surrounding rock of deep-buried rectangular tunnel in layered strata
Authors: Rao Junying , Liu Dengkai , Xie Caijin , Nie Chongxin , Ping Li 
Published: September 2019

Abstract
This study presents a theoretical solution on stress and displacement of the deep-buried tunnel surrounding rock in layered strata. Based on theory of Покровский equivalent layer method, we convert layered strata into homogeneous ones and then map the rectangular tunnel in the coordinate plane z to the unit circle of complex plane ζ, through using a complex variable method and calculating the analytic functions Φ(ζ) and Ψ(ζ) with Matlab, the study obtains that the stress of the surrounding rock of deep-buried rectangular tunnel in layered strata. Subsequently, we derive the strain and displacement of the surrounding rock. Finally, we study the effects of lateral pressure coefficient and grade of surrounding rock and height-to-width ratio of the tunnel on the stress of tunnel surrounding rock. Based on our analysis, we formulate valuable rules.
Investigation on the Building Remains of Baiyun Chemical Plant in Wuhai City and Value Analysis about the Integration Protection
Authors: Wudi  , Liu Deming , Jia Wenliang 
Published: September 2019

Abstract
With the industrial structure adjustment and the surrounding natural resources depletion in Wuhai, the industrial regions are facing the issues about how to transform and develop. The industrial heritage being the material carrier of industrial civilization, protecting the industrial heritage is conducive to preserving the continuity of the material space environment and history of the city, and preserving people’s sense of identify and belonging to the culture of the place. The protections about Baiyun Chemicals, the typical regional industrial heritage in Wuhai, not only reflected the characteristic of the single construction, and more important focused on the portfolio of the group construction, are representing and expressing industrial culture and place spirit, and are worthy of careful analysing and elaborating. Therefore, it is necessary to effective screen the building part and non - building part of the industrial heritage, and to discuss the way of effective protection and reuse based on the screening results.
Evaluation of the effects of land supervision policy on Agricultural output value: The Chinese Perspective
Authors: Li Chunmei , He Ge 
Published: September 2019

Abstract
The purpose of this study is to discuss whether the implementation of Land Supervision System has a positive impact on agricultural output value and the degree of effects, to further improve the Land Supervision System, protect the quantity and quality of arable land, and provide reference for increasing agricultural output value. This study use method of mixed model and fixed effect model to analyse the province-level panel data. The results show that land supervision has a positive impact on the growth of agricultural output value. The paper concludes that the policy of land supervision should be continued and the process of land consolidation should be emphasized in order to promote the balance of the number of arable land. In this process, more attention should be paid to arable land and the construction of agricultural infrastructure so as to facilitate the wider application of agricultural machinery in agricultural planting.
Structural Design of FDM 3D Printer for Low-melting Alloy
Authors: Li Bin , Liu Jinjin , Gu Hai , Jiang Jie , Zhang Jie , Yang Jianchun 
Published: September 2019

Abstract
Since the metal additive manufacturing technology has some problems, such as high printing cost, low efficiency and high porosity, a method of fused deposition modeling (FDM) and metal additive manufacturing combined was proposed. In this study, a FDM 3D printer suitable for low melting alloy was designed based on the physical characteristics of low-melting alloy. Firstly, a set of overall structure design scheme was proposed. Secondly, the extrusion structure of key parts of FDM printer was designed. Then, the virtual assembly of the designed parts was carried out and the prototype was made. Finally, the frame was analyzed by finite element simulation method. The results show that the frame meets the needs of strength and stiffness.