bluuebunny/crossref_metadata_2025_split huggingface dataset:
Demonstration of an efficient single flux quantum logic circuit by introducing a local magnetic flux biasing
Authors: Asada Shunta , Yamanashi Yuki , Yoshikawa Nobuyuki 
Published: March 2021

Abstract
We investigated local magnetic flux biasing (LFB) that induces a phase shift in superconductor circuits by locally applying a magnetic field through the superconductor loop with Josephson junctions. The arbitrary phase shift can be achieved using LFB without modifying the circuit fabrication process. To quantitatively evaluate the effects of introducing LFB for practical superconductor circuit applications, we designed a single flux quantum (SFQ) based non-destructive read-out flip-flop with complementary outputs (NDROC) and a delay flip-flop with complementary outputs (DFFC). The circuit area and static power consumption of the NDROC based on LFB architecture (LFB-NDROC) are approximately 67% and 36% of a conventional NDROC, respectively. The measured bias margin of the LFB-NDROC was in the range of 69%–129%. Using LFB, we were able to reduce the circuit area and power consumption for the DFFC by 67% and 83%, respectively. The measured bias margin of the DFFC with LFB was between 115% and 128%. LFB enabled us to implement a 5-to-32 SFQ decoder which comprises NDROC trees with a reduced circuit area of approximately 60% of a conventional decoder. The results obtained in this study can be applied to not just SFQ circuits but other superconductor circuits also, as they improve the area and power efficiency of such circuits.
Research on a Three-phase Flow Electromagnetic Measurement Method
Authors: Li Xuejing , Li Haiyang 
Published: March 2021

Abstract
For a long time, industrial and agricultural production has a wide range of requirements for energy saving and emission reduction. The flow parameter detection of water/gas/oil three-phase flow is of great significance in the control and optimization of the petroleum industry process. Using the principle of correlation method, a multi-electrode electromagnetic measurement method is designed to measure the three-phase flow. The system has the function of self-detection of the meter zero point. The finite element method is used to calculate and analyze the distribution of sensitive fields inside the flow measurement sensor and the influence of different physical parameters of non-conductive objects on the disturbance characteristics of the flow measurement sensor. And through experiments to prove the feasibility, stability and accuracy of the constructed measurement system.
Research on Energy Storage Capacity Planning Model Considering Peak Regulation Gap
Authors: Yuan Jiandang , Gu Ming , Bai Xiaolei , Yang Kui 
Published: March 2021

Abstract
Establishing a clean energy-based power supply model and realizing energy structure adjustment are currently important directions for energy development in various parts of China. Realizing the cleanness of urban energy structures depends on large-scale energy storage technologies. Therefore, the rational planning of long-term and short-term energy storage plans in the region is of great significance to guide the development of urban energy storage and further realize the cleanness of urban energy structure. In this context, this paper considers the peak shaving gap and establishes a wide range of energy storage capacity planning models. Urumqi is used as an example city to develop a regional planning plan using the above model. An example validates the effectiveness of the model.
Research on Control Strategy of Hybrid Electric Vehicle
Authors: Bai Yuefei 
Published: March 2021

Abstract
Focusing on optimizing the energy management strategy of the hybrid power system and improving the fuel economy, this paper mainly studies the determination of the optimal control target driving comfort, and obtains the optimal control law according to the optimal control theory, and designs the controller. Finally, in order to make the system control indicators reach the research goals, an observer is established for tracking observation.
Smart Grid Communication System based on OTN Technology
Authors: Zhang Zhanghuang , Tang Yuanchun , Zhou Zhaozheng , Xia Bingsen 
Published: March 2021

Abstract
With the rapid development of society, the social demand for electricity is increasing day by day, which puts forward higher requirements for the power communication network, which makes the application effect of optical transmission network technology gradually significant. In view of the characteristics and functions of optical transmission network (OTN), continuous extension and expansion are carried out to realize the gradual integration of smart grid communication system. Based on this, this paper studies the smart grid communication system based on OTN technology. Based on the analysis of the characteristics and key technologies of OTN technology, combined with the communication requirements of smart grid communication system, the specific application of OTN technology in smart grid communication system is studied, and the application of OTN technology in power communication network is taken as the experimental group Finally, the application of OTN technology in power communication network is explored. The results show that the average score of the experimental group is 3.3 higher than that of the control group in terms of service adaptability, service demand satisfaction and intelligent level of communication network. Therefore, it is very necessary to establish the backbone optical transmission network of power communication by using OTN technology, so as to provide guarantee for the safe and stable operation of smart grid.
Research on Automation Processing of Human Resource Management System in Energy Enterprises
Authors: Wang Taiyou 
Published: March 2021

Abstract
In order to improve the work efficiency of human resources in energy enterprises and realize the integration of internal resources, the paper designs a human resources information management system. Combining with the actuality of human resources in energy companies, the paper uses UML modelling tools to analyse system functions; uses MVC mode to design the overall system architecture to reduce the coupling between layers; the paper uses ASP. NET to deploy the development environment; at the same time the paper uses the WEB browser as the client. Finally, through the test, the information management of employees’ attendance, salary, performance and other aspects was realized, which greatly improved the efficiency of human management of energy enterprises.
Selection and Study of Functional Modules for Amphibious Unmanned Search Vehicles
Authors: Li Yi 
Published: March 2021

Abstract
In recent years, since the 18th National Congress first proposed the strategy of a strong country of the sea, China has begun a series of measures to improve the ability to develop marine resources, develop the marine economy, protect the marine ecological environment, and build a strong country of the sea in all aspects. Although China’s maritime search and rescue work at the policy level has made some progress, but the overall search and rescue system, the mechanical equipment process of propulsion is not yet mature, and the combination of existing search and rescue technology is not perfect, need more new thinking to. While the application of air search and rescue system has certain limitations, but the two search and rescue technology has gone through a long development, if it is applied to the marine level, it can better avoid terrain obstacles, so as to get better results.
Anomalous Noise Measurement and Analysis of the Valve Hall in ±800kV UHV Converter Station
Authors: Huang Tao , Li Gang , Wang Xingyao , She Kai , Hao Cao 
Published: March 2021

Abstract
In order to control the anomalous noise of the pole-I valve hall in a ±800kV UHV converter station, the background noise of the valve hall and the noise of each valve group in the valve tower are measured, respectively. The sound pressure level differences of the valve groups are compared. The anomalous noise locates in the short-circuit pipe of cooling water in the valve tower. Frequency spectrum analysis shows that the abnormal noise is related with the flow of cooling water. The two-dimensional finite element model is established to analyze the influence of chamfer angle and pipe length on the flow velocity of cooling water. The result shows that the abnormal noise is only related with the chamfer angle of the short-circuit pipe with constant flow velocity. The abnormal noise is successfully controlled by structure improvement of the short-circuit pipe and the potential risk to the valve group is avoided, which will give technique support to the operation and maintenance of the valve hall in UHV converter stations.
Review of oxide scale on high temperature heating surface in boiler
Authors: Zhang Tianyu , Zhang Xin , Bayar Nashun , Zhao Zhenning 
Published: March 2021

Abstract
The problem of oxide scale has always been a problem that hazards to the safe and stable operation of ultra-supercritical units, and is also the focus of equipment manufacturers, research institutes and production units. Therefore, the correct understanding and constructive result of investigation on the oxide scale’s origin, damages and formation has great guiding significance for the long-term operation of the unit.
Optimization of phase change heat exchanger based on RSM
Authors: Shang Xiuqing , Liu Fang 
Published: March 2021

Abstract
A tube phase change heat storage unit with fins was designed and optimized by multi-objective optimization method based on response surface method. Taking the temperature of phase change material (PCM) at a certain time as the optimization index, the effect of the relative position between the outer wall of the inner tube and the inner wall of the intermediate tube on the heat exchanger performance is mainly considered. The angle of the inner tube outer wall fin, the angle between the two fins on the outer wall of the inner tube and the angle of the fin on the inner wall of the outer tube are the three influencing factors. The optimum parameters are as follows: angle A = 7.09 °, angle B = 40.06 ° and angle C = 45 ° and the best result is obtained when the relative position of inner and outer fins is about 40 °and the optimization result is increased by 6.4%. The results show that the fitting accuracy of the regression model is as high as 97%, which shows that the results are reliable.
Research of section optimization design of steel structure main workshop of a large thermal power plant
Authors: Wang Changshan 
Published: March 2021

Abstract
In order to reduce the section size of column C and D column, to satisfy the needs of process engineering, this paper, by using the finite element analysis software STAAD model the stress of the main building, the main steel structure building carried on the thorough analysis, put forward two kinds of section optimization scheme, the comparative analysis shows: in the same section and the amount of steel case, the safety of the second scheme is higher than plan a, therefore, the scheme two is better than one. For scheme 1 and scheme 2, the safety of scheme 2 is 13.7% and 9.8% higher than that of scheme 1 when the same column section, the same load and the same parameters are used for column C and column D. The research results are applied to Hami Power Plant of State Grid Energy, with only columns C and D, and the actual value saves more than 500 tons of steel compared with the original value, and obtains good economic effect.
Comprehensive Analysis of Power Grid Energy Saving and Loss Reduction Based on Power Big Data Platform
Authors: Lu Haiqing , Huang Hongyang , Wu Jun , Chen Feng , Lu Chengyu , Xu Weiwei , Qian Qi , Wang Pengcheng 
Published: March 2021

Abstract
Whether the original power data is accurate and complete is a key factor affecting the accuracy of line loss calculations. This research is based on a big data platform to obtain the distribution network model data, topology data, and operating data required for theoretical line loss calculation and technical high loss analysis. The power system analysis algorithm is combined with the big data analysis algorithm to automatically check the distribution network. To locate the high-loss links of the power grid to assist grid planners in their energy-saving and loss-reducing planning and transformation work.
The Ignition Performance of Metal Film Bridge
Authors: Li Song , Zhang Liang , Yuan Changhong , Xia Wen 
Published: March 2021

Abstract
The ignition voltage of micro-satellite and MEMS fuse become more and more lower, the conventional electro-explosive devices are hardly meet the requirement. In this paper, Ni-Cr metal film bridge of different size/substrate were designed by MEMS processing technology. By using Neyer D-optimal sensitivity test method, it got the result that the threshold of ignition voltage would decrease with the decrease of designing size, and the threshold of ignition voltage with the glass substrate would be less than the silicon substrate.
Hot Stamping Process Simulation of 22MnB5 Steel Based on Identified Heat Boundary Condition
Authors: Xiao Gang , Zan Zhiwei 
Published: March 2021

Abstract
Finite element (FE) simulation is the powerful tool for an analysis to thermo-mechanical coupling process and helps the manufacturer in understanding the effect of the various parameters in the hot stamping process better. The simulation results are strongly dependent on the accuracy of boundary condition. In this paper, the heat boundary condition is firstly obtained based on an inverse analysis method. The characteristics of heat transfer in the interface between the sheet and the die was also analyzed. Then, the numerical simulation to the whole hot stamping process was made with simulation software by applying the identified heat boundary condition. The good agreement between the calculated and experimental temperatures demonstrates that the inverse analysis method is a feasible and effective tool for identifying the sheet-die heat boundary condition.
A coupled finite difference and material point method for simulation of gas–solid flow of thermobaric explosions
Authors: Li Gen , Lu Fangyun , Li Zhibin 
Published: March 2021

Abstract
A coupled finite difference and material point method (CFDMP) was presented to simulate the dynamic of the gas–solid flow of thermobaric explosions. The coupled method takes advantages of both the two methods where the finite difference method captures the wave structures of gas phase and the material point method tracks the movement of solid phase. Particle collision is easily realized in MPM framework. By using a uniform grid system, the grid nodes have both the two phases’ information and their interactions are directly calculated. The simulation of thermobaric explosions in different containers is carried out and the results validate the accuracy of CFDMP program. The particle collision reduce the compression degree of the solid phase in the initial expansion stage but slightly influence the pressure history at the gauge. The process of particle movement in the container is demonstrate and the wall-reflected wave enhances the burning rate of particles.
Research and analysis of fluorescent magnetic particle inspection of steam turbine rotor blade
Authors: an Jie 
Published: March 2021

Abstract
The operating conditions of turbine rotor blades are complex and changeable, and the probability of defects is high, which puts forward higher requirements for the professionalism, safety, stability and convenience of magnetic particle inspection personnel. How to find the deficiencies in the magnetic particle inspection of blades and improve it to better adapt to the field inspection has become the focus of attention. This paper mainly describes the process of fluorescent magnetic particle inspection, compares the similarities and differences of magnetization specifications in three domestic standards, analyzes the problems found in the process of fluorescent magnetic particle inspection and makes corresponding improvement, and adopts reasonable optimization scheme to improve the reliability of fluorescent magnetic particle inspection. After demonstration test and field application, the improved fluorescent magnetic particle inspection can give full play to its advantages, achieve the purpose of rapid, accurate inspection and continuous improvement; on this basis, different inspection platforms can be established to inspect different parts, improve the universality and inspection efficiency of magnetic particle inspection, which is conducive to the promotion and application of magnetic particle inspection in the field of nuclear power.
Vibration analysis and optimization of controller bracket
Authors: Hu Shunan , Chen Yanchang , Zhu Junjie , Zhao Yang , Hu Yanbin , Wang Chong 
Published: March 2021

Abstract
Through harmonic vibration test and harmonic simulation analysis, the first natural frequency of controller bracket did not meet the experimental test requirements that proposed by the manufacturer (greater than 2000Hz). Through modal analysis of controller bracket, we could optimize controller bracket from design structure, processing technology, handling and other aspects. Cast aluminum material ZALSi12 was adopted. After modal analysis, the frequency of optimized structure was 2374Hz, which meets the experimental requirements proposed by the manufacturer.
Study on the constitutive equation of hot forming of boron steel sheet
Authors: Li Xiaoda , Zhan Xianghui 
Published: March 2021

Abstract
The high temperature constitutive equation of boron steel sheet can describe the relationship of the thermodynamic parameters on the hot forming process of boron steel sheet. It can reflect the relationship between flow stress and strain, the temperature and strain rate, and is indispensable in the forming simulation of hot stamping forming process. In this paper, around the ultra-high-strength boron steel sheet 22MnB5, conduct thermodynamic tensile test on it. And the high-temperature constitutive equation of the high-strength steel sheet under the high-temperature austenite state is established according to the deformation theory. Finally, it is confirmed that the improved Norton-Hoff constitutive equation fitted with the experimental results is in good agreement with the flow stress relationship of boron steel 22MnB5.
An Improved Load Spectrum Extrapolation Method of Railway Vehicle Bogie Frame
Authors: Ma Shuang , Sun Shouguang , Wang Binjie , Wang Ning 
Published: March 2021

Abstract
This article is aimed to seek for a precise extrapolation method on railway vehicle bogie frame load spectrum based on real engineering problem in China Standard EMU and Beijing Subway vehicle. The most common used methods, exceeding probability and standard load spectrum with cumulative frequency, are discussed. An improved method that excludes trivial load amplitude while calculating cumulative frequency is proposed. The three methods are deployed with real measured data and then compared with the ground truth. The comparison result shows that the improved method introduced in this article has the minimum error of the estimated load maxima and least deviation from ground truth load spectrum.
An Integer Programming Model for Flow Shop Scheduling Under TOU and Tiered Electricity Price
Authors: Peng Lining , Yang Mingshun , Xiao Renhao 
Published: March 2021

Abstract
Reasonable scheduling can achieve energy saving in the production process. Considering the TOU and tiered electricity price policy, an integer linear programming model for flow shop with the goal of minimizing the power cost is constructed, and a particle swarm optimization algorithm (PSO) with a three-layer coding method based on the workpiece, start time and machining state and the iterative process is designed. Finally, the correctness of the mathematical model and the effectiveness of the algorithm are verified by an example.
Research on Structure Design of New Energy Photovoltaic Inverter
Authors: Jia Jianping 
Published: March 2021

Abstract
With the increase of energy demand, primary energy is drying up. In order to achieve sustainable development, renewable energy and new energy research is imperative.The research and development of solar photovoltaic inverter can supplement and improve the existing energy structure, which has long-term practical significance.In this paper, the structure design of solar photovoltaic inverter power supply is studied. The power supply adopts lead-acid battery energy storage and full bridge inverter structure. At the same time, the paper studies the design of power supply protection circuit to realize battery reverse connection protection and MOSFET overvoltage protection.
Research on Metro Power Supply System Based on New Green and Environmental Protection
Authors: Wang Yaya , Liu Junhui 
Published: March 2021

Abstract
Installing a ground-based super capacitor energy storage system in the subway will effectively recover the regenerative braking energy of the train, reduce the energy consumption of the system, and achieve the goal of green and environmental protection. Various substations, traction/braking trains and energy storage systems interact in real time through the traction network to form a complex multi-energy coupling system. Therefore, in order to improve the overall energy efficiency of the traction power supply system and reduce investment costs, this article proposes Comprehensive optimization method for power supply system parameters and energy storage system capacity configuration. Through research, it is found that compared to the optimization of a single energy storage system, comprehensive optimization effectively improves the energy-saving rate of the energy storage system when the investment cost is similar.
Investigation and Protection of Ancient and Famous Trees Resources of Daxiong Mountain
Authors: Xiao Yanwu , Wang Dinglong , Wu Yi 
Published: March 2021

Abstract
In the paper, the authors presents current situation of ancient and famous trees resources in Daxiong Mountain; the characteristics of ancient and famous trees resources is analyzed: (1) There were a large number of trees, and most of them appear in communities. (2) There are many old and tall trees with beautiful tree shapes and different postures. (3) There are many rare and precious old trees. Third, investigated the Problems existing in protection and management of ancient and famous trees in Daxiong Mountain and the reasons. Final, protection countermeasures of ancient and famous trees in Daxiong Mountain is put forward.
Future resettlement of environmentally displaced persons
Authors: Wang Bingran 
Published: March 2021

Abstract
With the development of human economy and society, there has been climate warming, sea level rise, resulting in many environmental displaced people. Their placement will become a serious problem in the future. In response to the increasing number of EDPs caused by sea level rise, first, we established a dangerous population prediction model, estimated the number of dangerous people over time by predicting sea level height, and established a cultural loss model to estimate EDP migration by quantifying cultural indicators. The problem of cultural loss in the process. Then, in order to effectively solve the problem and protect the human rights and culture of EDP, we have established a tripartite game model and concluded that the United Nations should have the right to speak on this issue and make a unified deployment for each country.