bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Novel Dynamic Intuitionistic Fuzzy MADM Approach
Authors: Zhou Hui , Gu Haojie 
Published: August 2019

Abstract
This paper explores the multiple attribute decision making problems with dynamic intuitionistic fuzzy information. The notion of intuitionistic fuzzy variable is defined, and one new aggregation operator: dynamic dependent intuitionistic fuzzy Einstein weighted average (DDIFEWA) operator is presented. And based on the D-DIFEWA operator, we develop a procedure to solve the dynamic intuitionistic fuzzy multi-attribute decision making (DIF-MADM) problems where all the decision information about attribute values takes the form of intuitionistic fuzzy numbers and is collected at different periods. Finally, a numerical example is presented to show the applicability of the proposed method for the advanced mathematics teaching effectiveness problem and a sensitivity analysis is conducted to demonstrate efficiency of dynamic evaluation.
Study on the Informatization of the Standard of Railway Freight Transportation Service and Its Implementation Path
Authors: Jin Zongzhen , Cao Lili , Zeng Yi , Cheng Yonghong 
Published: August 2019

Abstract
with the development of information technology, the railway freight transportation of China has made a great improvement in management efficiency and customer services. Practice has proved that standardization is an important technological means of improving management effectiveness and optimizing the service quality, with the Standard of Railway Freight Transportation Service Quality promoting railway freight transportation development. In the new era, informatization is becoming the important path to improve the standard, which can regulate the railway freight. Furthermore, Furthermore, some suggestions of informatization implementation path are put forward
Implement of Overhauser magnetometer coordinate transformation software
Authors: Yu Wenhao , Chen Shudong , Zhang Shuang 
Published: August 2019

Abstract
Two kinds of coordinate projections of Overhauser magnetometer coordinate transformation are studied in this paper. On this basis, the MFC program of Visual C++ is programmed independently. The program implements accurate conversion of Gauss-Krüger projection coordinates and UTM projection coordinates to the WGS-84 geodetic coordinates. It is verified by the examples that both forward projection calculation errors are less than 1.0m. The error of Gauss inverse calculation is less than 10-3 degrees, while the error of UTM projection coordinate inverse calculation is less than 10-5 degrees. This research provides assistance for magnetic survey workers to generate coordinate images, and is also the theoretical basis for the corresponding function of magnetometer PC software.
Improved algorithm of DTW in speech recognition
Authors: Zhi-Qiang HU , Jia-Qi ZHEN , Xin WANG , Zi-Wei LIU , Yong LIU 
Published: August 2019

Abstract
This paper improves the Dynamic Time Warping (DTW) algorithm. In order to change the problem of the traditional search range of DTW speech recognition algorithm is too large, an improved DTW algorithm is proposed to limit the search path. Firstly, the traditional algorithm is analyzed to find its speech recognition search path, distortion and recognition efficiency. Secondly, the improved algorithm is introduced, the search path is limited, and simulation is carried out in MATLAB. Compare the improvement results with the improved recognition results before comparing the distortion and recognition efficiency, and the improved efficiency is calculated. Experimental results show that the improved new speech recognition algorithm is superior to the traditional algorithm in overall performance.
Analysis of Centralized Inter-satellite Link Network Coverage Based on STK and Matlab
Authors: Yue Zhang , Yunxin Guo , Jiacai Hong 
Published: August 2019

Abstract
Aiming at solving the problem of network coverage of GNSS system inter-satellite measurement and control link, the method of joint STK and Matlab is adopted. By using the interface provided by both parties, Matlab can directly control STK for task analysis, and obtain professional orbit data and star directly from STK. The distance information is processed and analyzed by Matlab. The preliminary analysis results of the link coverage of the centralized inter-satellite link network route show that the centralized network coverage is high and the on-board antenna resource utilization is high, but the load capacity of the satellite payload and the on-board data processing. The performance of the device puts high demands on it.
Research on forecast method of railway passenger flow demand in pre-sale period
Authors: Wei Zhengzheng , Shan Xinghua 
Published: August 2019

Abstract
The railway demand scientific forecasting is a rapid response mechanism for the railway sector, rational layout train plan for achieving definitive dynamic adjustment, and the basis for carrying out revenue management. In the railway industry, with changes of the seasons, holidays, emergencies and strategic competitor (such as airline routes for a certain period of reduced discount), passenger flow demand changes. Based on actual demand, this paper proposes an adaptive and flexible method of the railway passenger flow forecasting, which can be adapted to the above factors.
RFM high-speed railway customer value classification model based on spark
Authors: Wei Zhengzheng , Shan Xinghua 
Published: August 2019

Abstract
As implementing customer relationship management (CRM) is the future development trend of high speed railway, based on the customer value of customer classification research has important theoretical and realistic significance. Based on the huge number of the high speed railway’s customers, this paper proposes a parallel RFM customer value classification model based on the Spark framework. First, based on the RFM customer value model, calculating the coefficient of customer’s value, then based on the Spark framework, designing the parallel genetic k - means algorithm. The experiment proved this model has the quality of computing quickly and high precision. It has the obvious practical significance applied to the customer relationship management system.
3D Visualized RC Structure Durability Analysis
Authors: Liu Wenpeng , Ge Jian , Zhou Jiayuan 
Published: August 2019

Abstract
Building Information Model (BIM) is used to share and exchange information between different applications for considerable processes of Architecture, Engineering and Construction (AEC) projects, and it is the key technology to manage information throughout the entire lifecycle of a building, solve the problem of information silo and improve the productivity of AEC project. This paper proposes a new method to extend the BIM technology, which makes it possible to integrate durability factors into design, durability analysis and residual life of building structures prediction. Based on the combination of the national durability code and achievements of RC durability study, a 3D Visualized RC Structure Durability Analysis is developed, which is verified to be capable of improving lifecycle management of AEC projects, upgrading durability level and optimizing the lifecycle cost structure of building projects by a case study.
Economic Dispatch of Energy Storage System in Micro-grid
Authors: Zhou Meiyu , Zhai Qiaozhu , Zhou Yuzhou 
Published: August 2019

Abstract
Renewable energy and energy storage combined system cannot only realize load transfer, load shifting, energy saving and emission reduction, but also ensure the stability and safety of power grid. Economic dispatch of energy storage system under micro-grid environment is a typical multi-stage stochastic programming problem. The purpose of this paper is to propose an economic dispatch model for the energy storage system satisfying the non-anticipative constraints. The objective function is constructed based on the minimum dispatching cost of the micro-grid, and the accurate mathematical description of the feasible region is given. By solving these problems, we can obtain economic dispatch results of the energy storage system satisfying the non-anticipative constraints. The proposed methods are tested on four different cases, and the results suggest the methods are effective.
The Importance of green roofs and Sustainable development
Authors: Bříza L 
Published: August 2019

Abstract
The sustainable development is the observance to the principles of respect for nature, environmental protection and respensible approach to social and economic standards of urban development. Green roofs are an important and inherent aspect of such development. For current and especially future climate conditions they are also represent a signification factor of water management and are one of the ways to keep cities habitable for future generations as well. Green roofs can efficiently retain water and gradually release it back into the environmental in a place where was a driving rain without water affected site literally just flowed. The desired side effect of the process may be overall cooling of the environmental. Simultaneously, the vegetation constructions contribute to the elimination of the so-called heat island effect, and thus contribute to the natural change of water.
Determination of input parameters necessary for the design of the polder in the Horná Topl’a basin, Slovakia
Authors: Fijko R 
Published: August 2019

Abstract
In the last decade, there have been many destructive floods in various parts of Slovakia. Despite the extensive investment in flood control works, there are only small changes and neither flood occurrences nor damages are decreasing. A possible consequence of climate change is an increased frequency of extreme meteorological events that may cause floods. The determination of the occurrence of these extreme hydrological phenomena in a particular catchment is directly subject to the input data in dependence on climatic and geomorphological processes. This article deals with the method of comparing the retention capacity of the polder by means of geographic information systems (GIS) compared to the results from map data and design of flood wave diagram for the river of Banský Stream. This proposal is part of the flood protection of the area of Čergov Mountain in eastern Slovakia where is designed the system of polders.
Experimental house and stratification preheating tank
Authors: Kosican J 
Published: August 2019

Abstract
The aim of this study is to simulate two types of usage of solar panel systems and their share of heating and hot water in the experimental house. Two differently designed solar systems are tested in an experimental house with stratification and the other without stratification. Both systems provide annual demand for heat and demand for hot water. The simulation program is T * SOL 2018. By using a variant comparison program, it allows you to examine which type is better in different standards and also compare both solar panel outputs. The results can be analysed in different environments, such as different weather conditions or different heat losses of a building. The following research deals only with heating and water heating[2][2][2][2][1].
The forced ventilation analysis of panel block building pilot project
Authors: Miček D 
Published: August 2019

Abstract
The 21th century is characterized as a hectic age, which point out the inability of people to correctly understand and evaluate the physical parameter of the internal environment and microclimate. This misunderstanding often leads to the life endangerment in the way of carbon dioxide high levels and inappropriate living temperature. Latest technological development helps us to improve this situation by computational capabilities, which includes the possibility of measurement and collection data from long-term point of view. The contribution consists of long-term real-time measurement at panel block building pilot project in Brno, Czech Republic. The measurements are analysed and evaluated with respect to interior environment and microclimate requirements stated in Czech National Standards. The result comprise the proposals and simulations of internal microclimate, focusing on the carbon dioxide levels suggesting the most efficient forced ventilation unit operation, based on evaluation of measurement and simulations. The main asset is opportunity to regulate and optimize the forced ventilation units based on the simulation of the carbon dioxide level in the room, resulting in financial savings by proper regulation of the forced ventilation units and improving the microclimate of buildings.
Assessment of shear capacity of concrete bridge deck slabs using theoretical formulations and FEM analysis
Authors: Vidaković A , Halvonik J 
Published: August 2019

Abstract
Reinforced concrete (RC) slabs without shear reinforcement are typical cases of bridge deck slabs. For such structures, shear has been a challenging problem in the assessment based on the current standards. This paper deals with the comparison of the methods for assessment of bridge deck slabs subjected to a concentrated load. Two experimental campaigns were selected as case studies and analysed by the simplified theoretical formulations and linear finite element analysis (LFEA). The differences between analysis methods were discussed regarding one-way shear behaviour of the bridge deck slabs.
Experimental research of arc heater with three electrodes
Authors: Yu Lei , Feng Yao , MouSen Cheng 
Published: August 2019

Abstract
As a heat source capable of producing extremely high temperature, the arc heater developed with the development of ballistic missiles and other spacecraft. With the development of hypersonic vehicles, the requirement of thermal protection performance test on ground simulation equipment is higher and higher, the current and power of arc heater are increasing. The traditional single-electrode arc heater can’t run stably for a long time under large current. In order to improve the operation stability of the arc heater under large current, a multi-electrode technique was developed. In this paper, the effects of parameters such as arc current, gas flow rate and resistance on the current distribution of each sub-electrode of the three-electrode arc heater are studied. The results show that when the arc current is constant, increasing the resistance difference of each sub-electrode is beneficial to the average distribution of current. With the increasing of arc current, the current distribution of each sub-electrode is more uniform. The setting of parameters such as arc current, gas flow rate and resistance has great influence on the distribution of cathode current of multi-electrode arc heater, but little influence on the anode.
Photoluminescence from disc-shaped Si3N4/WS2/Al2O3 heterojunction
Authors: Zhou Guyu , Shen Fang 
Published: August 2019

Abstract
Transition metal dichalcogenides (TMDCs) have a direct band gap and exhibit more peculiar properties than graphene. Two-dimensional TMDCs (2D TMDCs) are widely used in many fields such as catalysis, energy storage, and composite materials due to their unique sandwich structure. Compared to the three-dimensional structure of silicon materials, TMDCs have a two-dimensional layered structure at the nanometer scale, which can be used to manufacture semiconductors or smaller, more energy-efficient electronic chips, which will be widely used in the next generation of nanoelectronic devices. In this paper, continuous light and femtosecond laser are used to irradiate disc-shaped Si3N4/WS2/Al2O3 heterojunction, and the photoluminescence characteristics of the heterojunction are studied by changing the distance between the sample and the light source to change the incident power.
Performance Assessment for Sunlight Radiation Resistant Coating Manufacturers
Authors: Yang Chun-Ming , Gong Huifeng , Hsu Chang-Hsien , Chen Chi-Yuan 
Published: August 2019

Abstract
It is of great significance to select suitable manufacturers to improve the ability to respond to the final customer demand. Establishing a strategic partnership with manufacturers is an effective way to increase profits and improve the process efficiency for better connectivity across the supply chain. Therefore, manufacturer performance evaluation and selection is one of the most important decision-making problems in enterprises. This study proposes a manufacturer capability index MCI
and gives the uniformly minimum-variance unbiased estimator (UMVUE) of the variance and probability density function (PDF) for index MCI
. Finally, an example of performance assessment for sunlight radiation resistant coating (SRRC) manufacturer is given to illustrate the application of the proposed index MCI
.
Software Design of the Detection Device for the Performance of the Faucet based on LabWindows/CVI
Authors: Xia Meixia , Tang Minjun , Feng Panpan , Cheng Yunbin 
Published: August 2019

Abstract
Flow and sensitivity are two important indicators for measuring faucet performance. This paper designs a PC software based on the LabWindows/CVI development platform for the faucet flow and sensitivity detection system. The main function of the software is to communicate with the lower computer, control related hardware, and achieve data acquisition and analysis during the test process. Finally, the integration and record of test data is realized through MySQL database. The software runs stably and provides good human-computer interaction and automation services.
Preparation of Ti(C, N)-based Cermets Powders with Double-core Ring Structure
Authors: Yan Hui , Deng Ying , Jiang Shan , Chen Qiaowang , Cao Shixiu , Liu Bing 
Published: August 2019

Abstract
In this study, the microstructure of Ti(C, N)-based cermet was improved by adding β-cobalt (face-centered cubic) and (Ti, W, Mo, Ta)(C, N) solid solution powder to prepare micro-nano Ti(C, N)-based cermet powder. In order to improve the comprehensive properties of the material. Firstly, the Co powder with face-centered cubic structure was obtained by the solid-phase reaction of high-energy ball milling, and its plastic deformation resistance was higher than that of Co powder with dense hexagonal structure. Secondly, The powder of (Ti, W, Mo, Ta)(C, N)solid solution was obtained by mechanical alloying and high-temperature carbonization under the atmosphere of N2. And the two were applied to the micro-nano Ti(C, N)-based cermet powder, and finally the properties of cermet powder were compared with that of ordinary cermet powder. The results show that the microstructure of micro-Ti(C, N)-based cermet powder prepared in this study is a double-core rim structure, that is, the structure of black core white rim and gray core white rim. This structure can effectively prevent crack of the expansion. The strength and toughness of cermet materials are greatly improved, which is beneficial to the improvement of comprehensive properties of cermet materials.
Research on Energy Saving Measures of Residential District Lighting System
Authors: Chen Junsong 
Published: August 2019

Abstract
In today’s world, energy issues are a key issue related to national security and sovereignty issues. All walks of life are making suggestions and actively practicing energy conservation. As a major energy construction industry, designing an energy-saving lighting system in the construction of residential communities is very meaningful for energy conservation. This paper believes that when designing residential district lighting energy-saving systems, there are many types of lamps to be considered, such as the lack of natural light, safety issues and different time requirements for lighting in some areas. The countermeasures adopted are clear. In this case, the lighting requirements and the different lighting areas are designed, and intelligent switches and LED lights are installed. Through the energy-saving design of the lighting system, the effect of optimizing the lighting control and effectively utilizing the natural light is achieved in effect. This system not only has an effect on the lighting skills of residential areas, but also has reference significance for the design and optimization of lighting systems that are common in life.
Thermal performances and characterization of microencapsulated phase change materials for thermal energy storage
Authors: Ma Yanhong , Xie Qifei , Li Yue , Min Xianhao , Wang Xinzhong 
Published: August 2019

Abstract
A series of microencapsulated phase change materials (micro-PCMs) contained butyl stearate and octadecane as core materials were synthesized by suspension-like polymerization method. Methyl methacrylate (MMA), divinylbenzene (DVB), pentaerythritol triacrylate (PETA) and pentaerythritol tetraacrylate (PETTA) were introduced in polymerization system to form shells. DSC results indicated that microencapsulation ratio could reach as high as 75 wt.%. After 500 times thermal cycling test, the microencapsulation ratio of these as-prepared micro-PCMs decreased only by 2.3 wt.%. SEM images showed that these micro-PCMs have relatively spherical morphology and compact surfaces with diameter ranging from 5 to 40 μm.
Structural Design and CNC Machining of Integral Impeller for Automotive Turbocharger
Authors: Guo Jingjie , Ma Shaojie , Zhang Xiangjin , Shi Yaoyu , Wang Zhenning 
Published: August 2019

Abstract
Integral impeller is a key component of turbocharger. Although the research on structural design and machining of integral impeller has made some progress, The technical route of design and processing of integral impeller for vehicle turbocharger is cumbersome and slightly less efficient. A novel technology route of structure design and CNC machining for the integral impeller is proposed in this paper. Firstly, according to the relevant design criteria, the relevant parameters such as the overall impeller height, the blade height, the impeller inlet diameter, the impeller outlet diameter and the number of blades are obtained. Then the 3D model is created in the CAXA manufacturing engineer. Using CAXA CAM, the tool paths are generated in order to output CNC machining programs. The CNC machining programs are imported into the five-axis machining center for machining the integral impeller. The technology route can effectively improve the design efficiency, reduce the cost of design and manufacturing, and shorten the design cycle to a certain extent.
Mechanical properties of highly dispersed carbon nanotubes reinforced cement-based materials
Authors: Qin Jie , Qu Jian , Li Yanwen , Wang Bo , Sun Zhipeng , Zhang Hongqiang , Zhang Weidong 
Published: August 2019

Abstract
Carbon nanotubes (CNTs) are considered as ideal candidates for preparation of high performance cement-based composites due to their remarkable mechanical properties. Dispersion of CNTs is the crucial step while using CNTs in cement-based materials, while poor dispersion could lead to performance reduction of materials. In this paper, an effective dispersion method of MWCNTs by applying ultrasonic energy and in combination with surfactants was developed. The effects of surfactant type on the dispersion of MWCNTs were systematically investigated. Additionally, experiments are carried out to investigate the influence of concentration of MWCNTs on the mechanical properties of cement paste. The results show that a stable MWCNTs suspensions could be manufactured via the addition of surfactants and the stability of MWCNTs suspensions appears to be related to the ionic nature of the surfactant. Furthermore, the addition of MWCNTs is justified to enhance the flexural strength and compressive strength of the cement-based materials remarkably.