bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of Hydrogen Energy and Review of Current Conditions
Authors: Pan Aiqiang , Liu Jing , Liu Zhipeng , Yang Yunwei , Yang Xiu , Zhang Meixia 
Published: July 2020

Abstract
Energy reforms advance development of human civilizations. As environmental problems go increasingly severe, hydrogen energy which is featured by zero carbon emissions, high efficiency, easy storage and other advantages has won attention from researchers from around the world. China has rich hydrogen energy, and in the next energy reform, hydrogen will play an important role. This paper will introduce the application of hydrogen energy in industries, fuel-driven and electric cars, hydrogen storage and heat-power joint production in hybrid energy systems as well as the current development conditions. Typical study cases from different countries have been analyzed and interpreted. On that basis, the problems and bottlenecks for development of hydrogen energy in China are concluded.
Confirmation of Reasonable Position of iron tower for Gravel Soil in Transmission Line Project in South Part of Gansu
Authors: Ji Yanjun , Chen Liang , Zhang Xuelin 
Published: July 2020

Abstract
Based on the example of a power transmission line project in South part of Gansu, using the limit equilibrium analysis method, by Lizheng software, the safety coefficient of gravel slope under the tower load was calculated. The calculation results show that under the condition of safety coefficient of 1.25, the safe slope gradient is 39.3° in natural condition. The height of slope added from 9m to 11m, the safe slope gradient decreased from 31.1° to 29.2°, and the height of slope added from 11m to 18m, the safe slope gradient added from 29.2° to 39.2°. When the height of slope reached 20m, the iron tower has no effect on slope, the stability of iron tower was determined by stability of slope itself. After vertical load was applied, the safe slope gradient and shear stress inside of the slope changed seriously. Under 200kPa load, from the foot to top of the slope, the shear stress increased 35.27%∼93.1%, and on the top, 122.2%, maximumly, comparing with natural condition. This paper can provide a scientific basis for the later project in the same area.
Preliminary Study on Steam-Water Circulation System of Marine Small Nuclear Power Plant
Authors: Zhou Long-yu , Hou Ying-zhe , Wu Hao 
Published: July 2020

Abstract
Marine small nuclear power plants need to pursue the highest economy by improving the thermal efficiency of the steam-water circulation system. Based on the design concept of the steam-water circulation system of foreign nuclear-powered ships and onshore nuclear power plants, this paper proposes a preliminary heat balance diagram of the steam-water circulation system of marine small nuclear power plants, and comparatively analyzes the effect of initial steam pressure, condenser pressure and steam extraction pressure on thermal efficiency of steam-water circulation system. This study has certain guiding significance for the design of the general scheme of conventional islands in small marine nuclear power plants
Design of Intelligent Operation and Inspection Management System for Power Grid Equipment Based on Full Business Data Center
Authors: Gu Zhaoliang , Zhu Mengzhao , Zhu Wenbing , Zhou Jiabin , Zhu Qingdong , Wang Jian 
Published: July 2020

Abstract
There are some problems in the existing operation and inspection systems of State Grid Corporation of China, such as low level of system data integration, poor degree of functional application practicality. In order to solve these problems, the intelligent operation and inspection management system for power grid equipment has been designed based on full business data center. This system complies with the overall deployment requirements of the Internet of Things, including sensing layer, network layer, platform layer, and application layer. Based on the unified storage and management of the full business data center, the integration and service call of data information from 14 sets of operation and inspection systems could be realized. As a result, holographic perception of equipment status, active fault warning and prediction, and intelligent generation of operation and inspection decision could be realized by the designed system, which can promote the transformation of operation and inspection mode from business process driven to equipment status driven.
Study on nonlinear damage constitutive model considering the weakening of strength parameters
Authors: Chen Qingtong , Wu Zuoqi , Jia Xinguo , Zhang Junying 
Published: July 2020

Abstract
Take the mining damage of HuiTong coal mine’s deviated well bore cased by HongHui coal mine’s 1801-1 working face. The deformation of deviated well bore at different positions is calculated by probability integral method. The theoretical results are verified by actual damage of HuiTong coal mine’s deviated well bore. Evaluation criteria have been developed by analogy between actual damage of HuiTong coal mine’s deviated well bore and the theoretical results. Mining damage assessment of damage of HuiTong coal mine’s deviated well bore cased by HongHui coal mine’s 1801-1 working face was carried out. The research results have certain reference significance for recoverying the coal pillar of deviated well bore.
Design and Optimization of Fiber Optic Grating Pressure Sensing Array
Authors: Liu Honglin , Feng Tongyang , Lu Guan 
Published: July 2020

Abstract
Aiming at the haptic problem of robot hand pressure, this paper studies a fiber grating tactile sensor array. Using polydimethylsiloxane (PDMS) package, and the finite element simulation of the package body to obtain internal strain. Aiming at the strain field distribution when the robot hand is gripping, the design of preliminary sensor array and finite element analysis are carried out, and the improved particle swarm algorithm is used to further optimize the measurement points. It provides a theoretical basis for the subsequent construction of the measurement points of the FBG tactile sensor array detection system.
A Multivariate State Estimation Technique and Multilayer Forward Neural Network Framework on Steam Turbine Valve Flow Curve Simulation
Authors: Lu Kuan , Wang WenKuan , Meng Xiangrong , Li Jun , Pang Xiangkun 
Published: July 2020

Abstract
The Multivariate State Estimation Technique (MSET) is firstly implemented as the fault detection technique for monitoring parameters of the steam turbine valve. Second, healthy operation states are remained to form a preliminary dataset for the valve curve simulation. Then, the Forward neural network (FNN) based piecewise linear fitting method is used to simulate the steam turbine valve flow curve. With a MSET-FNN framework proposed, the simulation accuracy will be enhanced by removing the unhealthy operational states. In addition, the simulation process will gain a speed up with the utilization of GPU.
Numerical Simulation of Fracture-flooding in Class III Oil Reservoirs
Authors: Zhi Ji-Qiang , Jiang Nan , Liu Yi-Kun , Bai Ming-Xing 
Published: July 2020

Abstract
Daqing oilfield has entered into the stage of extra-high water cut development, and the Class I and Class II Oil Reservoirs have been successively developed and completed chemical flooding, which has a significant recovery efficiency, while the Class III Oil Reservoirs, which are primarily thin and poor reservoirs and out of surface reservoirs, are mainly developed by water flooding, with low water drive recovery. Chemical flooding and stimulation and injection are not effective to further enhance the recovery of the Class III Oil Reservoirs. In view of the special reservoir and development characteristics of the Class III Oil Reservoirs, a new concept of “Class III Oil Reservoirs fracture-flooding to enhance oil recovery” is put forward. By using numerical simulation technology, the seepage field and flooding effect of the Class III Oil Reservoirs before and after fracturing-flooding are studied to provide technical support for the development and exploration of the Class III Oil Reservoirs in Daqing oilfield.
Application of high pressure hydraulic slotting in pressure relief and permeability enhancement of coal roadway
Authors: Li Chengcheng 
Published: July 2020

Abstract
In view of the coal seam without protective layer and the first coal seam with outburst risk, the method of high-pressure hydraulic slotting through layer drilling can be adopted to reduce the gas content in the strip of the coal roadway and realize the rapid driving of the coal roadway. Based on the practice of Xin-ji coal mine, the high pressure hydraulic slotting test is carried out. The results show that after adopting the high pressure hydraulic slotting measures, the radius of the slotting is 2.10 m, and the cumulative coal output is 3.25 ‰ of the raw coal in the coal lane. The permeability of coal seam is 25 times that in the uncut area, and the average single hole extraction volume is 3.21 times that in the uncut area. The effective radius of 30 days and 60 days after cutting is 2.3 times and 2.1 times of the original drilling. 49% of the drilling work quantity and 38% of the standard time of extraction are reduced. The driving speed of coal tunnel is 1.65 times that before adopting hydraulic cutting measures. Therefore, the high-pressure hydraulic slotting through the layer drilling can provide reference for the gas prevention and control work in the similar conditions of coal seam and the first coal seam with outburst risk.
Numerical Study on Vectoring Primary Flow with Adjacent Synthetic Jet with Dip Angle
Authors: Gao Feng , Zhang Qian , Chen Fengli , Zhang Chengtao , Xia Xuefeng 
Published: July 2020

Abstract
Based on the full flow field calculation model of the synthetic jet actuator-X-L model, numerical simulation is carried out on the influence of the main parameters of the directional control of the adjacent synthetic jet actuator, and the parameters of the actuators of different adjacent synthetic jets are analyzed. The amplitude, frequency, and phase difference of the device were analyzed. The results show that the larger the amplitude of the synthetic jet actuator, the more obvious the control effect of the synthetic jet on the main stream; the synthetic jet actuator has an optimal frequency, so that the main stream deflection efficiency is the highest, and the inclination angle lowers the optimal frequency, which reduces the requirement of the flow field control on the actuator frequency; the actuator phase difference makes the control efficiency adjustment width of the mainstream increase significantly, and there is an optimal phase difference, while right Side actuator phase advancement is more efficient than hysteresis control.
Research on the development of DIE STEEL Industry in Huangshi based on SWOT analysis
Authors: Tang Min , Liu Sheng 
Published: July 2020

Abstract
DIE STEEL Industry is one of the most characteristic industries in Huangshi City. With the development of recent years, a relatively large industrial group has been initially formed. The number, industrial scale and market share of enterprises are all the first in China. In this paper, the SWOT analysis method is used to study the advantages, disadvantages, opportunities and threats of the development of Huangshi Die steel industry, analyze the problems existing in the industrial scale, product grade, innovation ability, ecological environment protection and other aspects of Huangshi Die steel industry, and put forward development countermeasures and suggestions to promote the high-quality development of Huangshi Die steel industry.
Application of P-median method in logistics node location
Authors: Chen Da , Xia Baodong , Li Zheng , Huang Jinxu 
Published: July 2020

Abstract
In view of the logistics node location problems, according to build logistics nodes needed to meet the timeliness and economic cost minimization requirement, combined with the specific case, write the corresponding algorithm program, based on P - value model which is constructed and improve the plan of site selection of logistics company division static P - value model, the plan of site selection of dynamic for selection of logistics node provides an effective analysis method and the decision basis, to solve the problem for a class of the actual location.
Dynamic real estate project cost prediction based on SIMCA-P
Authors: Tang Xiaodong , Zhang Xiaojie 
Published: July 2020

Abstract
with real estate projects as study cases, this study explored the influencing factors (contract term, project visa, project changes, etc.) for dynamic cost control and performed numerical analysis on these factors. The SIMCA-P software was used to perform partial least squares (PLS) regression on the actual cost and a regression prediction model was built. The difference between the checked cost and that forecasted by the model was compared, the reliability of the mathematical models for the residence projects was verified. The research results show that the explanation capacity of the explanatory variables for the dependent variables reached 0.937, which means that all these before-mentioned factors had significant impacts on dynamic cost control. The average error of the predicted residence cost obtained by the model based on actual data was 0.006582346, indicating the high prediction accuracy and that the PLSs regression method performed well in solving the multiple correlations between independent variables. Therefore, the PLS regression method could provide a good solution for prediction of dynamic cost of real estate projects.
Structure selection and analysis of tower 6a and 6b in weihai civic center
Authors: Zhang Xiaomeng , Liu Wenting , Zhou Yilun , Wang Lei , Liu Ziao , Liu Shuai 
Published: July 2020

Abstract
Weihai civic center covers an area of 193,100 square meters and consists of four high-rise buildings and large podium buildings. The building is divided into two parts through structural joints, with two towers forming a frame-core tube structural system and the lower podium as a frame structure. Through the selection of different structural systems, the selection and structure of the structural system are analyzed.
Research on Fresh Products for Fresh E-commerce
Authors: Dai Qun , Yang Can , Zhang Shujing , Zhang Wanrong 
Published: July 2020

Abstract
At present, opportunities and challenges coexist in the development of e-commerce industry, which develops rapidly, but there are also many problems. Among them, the offline cold chain logistics that puzzles fresh e-commerce has not been a good solution, the key reason is that there are too many uncontrollable factors of logistics distribution, storage and fresh, and lack of high quality cold storage to meet the needs of e-commerce. This paper analyzes a series of problems of cold storage from the aspects of temperature, space location, packaging design and distribution. Finally, we can solve these problems through temperature control technology, bar code technology and advanced cold chain technology.
Research on the Project of Canteen Fat Reduction Window
Authors: Yin Wenxiao , Zhao Xiaojie , Zhang Lijun , Chen Ruixuan , Chen Yahui , Lu Yang 
Published: July 2020

Abstract
The physical health of students in our country is decreasing year by year, and the decline of college students is particularly prominent. Based on the student’s perspective, the campus canteen is taken as the research object, and a canteen window dedicated to the college students’ diet needs is opened for the college students. It can not only define the daily calorie intake to achieve the purpose of weight loss or control, but also consider the nutritional requirements. Aiming at the current status of the development of Internet catering, this article combines the traditional campus canteen with weight loss and the Internet to establish a canteen takeaway, combining our traditional takeaway concept with the canteen to create a unique takeout system on campus.
Process Analysis of Warehouse Logistics Information System
Authors: Wang Xinyuan , Li Mengfei , Zhang Xue , Zhang Yue 
Published: July 2020

Abstract
This article takes a typical warehouse logistics company as the research background. Combined with the situation of this enterprise, it describes the requirements analysis of the warehouse logistics managements system in detail and analyzes the business and data processes of the warehouse logistics information system in detail. The operation of the system enables the comprehensive network, information and automation of the warehouse logistics management process and it achieves the purpose of improving work efficiency and quality and it achieves the goal of providing better services to customers. It has certain practical significance for the construction of warehouse logistics management information system of logistics enterprises.
Research on the Transformation of Safety decision Driven by Major Accidents Based on Big Data Mining
Authors: Dai Wentian , Zhuang Yue , Zhang Supei 
Published: July 2020

Abstract
In recent years, major accidents have occurred in China, causing extremely heavy loss of personnel and property. Unsafe human behavior is the direct cause of accidents, while corporate security behavior has a deeper impact. This paper first reviews the research status of major security incidents and corporate security behaviors, and expounds the research gap between current social security behaviors and major security incidents. By describing the governance framework and driving force of corporate security behaviors, we can explore the content and path of social security decision driven by major security events. Based on this theoretical basis, the 8.12 Tianjin Binhai New Area explosion accident was cited. Through the network reptiles, the policy and industry trends of the China Chemical Safety Association were studied, and the NLPIRParser text search and mining method was adopted. The results show that the regulations before and after the accident have undergone major changes. As the regulations become more stringent, the company’s safety has also been steadily strengthened.
Internet of Things: Examination of efficiency and safety
Authors: Alyshev Y V , Maslov O N , Shatalov I S 
Published: July 2020

Abstract
The paper studies the problem of complex safety in personal area network and local area network in the Internet of Things project’s boundaries. The electromagnetic safety analysis of various wireless picocell technologies have realized by statistical simulation with applying the criterion of functional of expected utility. The results of the statistical model are presented. The model’s stochastic variables are «projected economical effect» and «environmental and ergonomic risk»; the determinate variable is internet of things realization cost. Recommendations for the selection of personal area network and local area network elements based on the Bluetooth protocol are given. The model of equivalent radiator for estimation of Internet of Things objects safety is offered. It is shown that the forced switching of all Internet of Things elements to radiation mode is an «energy threat» for sensors in the room.
The use of electronic semantization of the cognitive activity manifestations with the aim of detection of intentions of the group of people leading to the destabilization of the digital super system
Authors: Loginov E L , Grigoriev V V , Balandin V S , Boyko P A , Shkuta A A 
Published: July 2020

Abstract
The article deals with the possibilities of monitoring of information communities and their members’ cognitive activity in order to analyze and forecast the actions of these individuals with the use of the method of automated structuring of their real political interests and of detection of inner- and inter-class connections in a digital super system. Analysis is a relevant method to detect tendencies of the political positioning of groups of people that are forming digital information assets as well as of the management of the organizational risks that emerge.
The methodology for calculating the interval of the shortwave radio link frequency correlation with the sphericity and small-scale inhomogeneities of the ionosphere
Authors: Pashintsev V P , Gakhova N N , Skorik A D , Alekseev D V , Senokosov M A 
Published: July 2020

Abstract
The paper suggests the methodology for calculating the interval of the fading frequency correlation in the shortwave radio link with one discrete beam and its diffuse scattering. This methodology takes into account the effect of the sphericity and small-scale inhomogeneities of the ionosphere reflecting layer.
Modification of entropy-based algorithm for determining words boundaries in noisy conditions
Authors: Karpov A S , Drozdova V I , Shagrova G V , Romanenko M G 
Published: July 2020

Abstract
A modification of the algorithm for finding word boundaries in continuous speech based on an analysis of the entropy of a speech signal is described. At the preprocessing stage, the signal is divided into frames; the entropy value is calculated for each frame and compared with the threshold value of the entropy γ. The algorithm is carried out in two stages, first a rough and then more precise definition of the word boundaries is made. At each stage, its own minimum distance between words is used. A modification is proposed, which consists in the fact that the entropy threshold γ is determined on the basis of the calculated SNR coefficient taking into account the experimental selection of signal parameters at the stage of precise determination of word boundaries in a noisy speech signal. Checking the functionality of the modified algorithm on noisy signals has shown that taking into account the effect of SNR on the selection of signal parameters increases the accuracy of word boundary determination.
Simulation of the stress-strain state of shells under internal pressure using the mixed finite element method, taking into account physical nonlinearity
Authors: Arkov D P , Kochetkova O V , Gureeva N A , Matveyev A S , Shiryaeva E V 
Published: July 2020

Abstract
In this article, the finite element method (FEM) is used to model the stress-strain state (SSS) of shells experiencing internal pressure with elastic-plastic state being taken into account. Main geometric equations determining the location of an arbitrary point at load step are given. Mixed functionality used in implementation of FEM which allows to determine stresses and displacements simultaneously is obtained based on equality of possible and actual work of external and internal forces. Examples of stress-strain state of rotation shells with spherical and elliptical bottoms under internal pressure are provided. Static check of resultant external forces arising from applied pressure and resultant internal forces arising from stresses equality to zero is performed. Achieved results show correctness of the developed algorithm with elastic-plastic properties of the material being taken into account, ensuring that main requirements for the mathematical model are secured, namely adequacy, versatility and cost-effectiveness. Costs of resources computing are reduced by adopting a number of hypotheses and determination of stresses and strains at once ensuring cost-effectiveness and simplicity. Using developed scheme of the mixed functionality application in implementation of FEM the mathematical model acquires one of its main properties - “Potentiality”.