bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Method of Judging the State Time Point of Mechanical Characteristic Switch
Authors: Tang Qi , Wu Lihui , Luo Rongbo , Li Guowei , Wang Junbo , Liu Shaohui 
Published: January 2021

Abstract
Aiming at the problem of judging the opening / closing time node by directly detecting the switch quantity in the process of detecting the mechanical characteristics of the switch cabinet, this paper puts forward a method to calculate the opening / closing time node with the CT secondary current as the original data. This method through the acquisition of CT secondary side current, current data of any phase, calculating threshold, intercepting alternative data, calculating slope and rate of change, the time node of opening and closing is obtained, solve many scenarios acquisition switch quantity and difficulties, judgement open/close time and the problem of low accuracy of switch performance. Through practical application, compared with the traditional acquisition of switch quantity to judge the opening / closing time node, the method proposed in this paper has universality, low detection difficulty and high judgment accuracy of opening / closing time node.
Reliability design of vehicle wiring harness
Authors: Yuan Shengrui , Dang Xunyi , Yang Xiaoyu 
Published: January 2021

Abstract
This paper introduces the method of the reliability design of vehicle wiring harness system, and puts forward some feasible schemes on the reliability design of wiring harness, and combines the reliability requirements into the design, so as to reduce the reliability defects caused by unreasonable design and fundamentally improve the reliability of wiring harness system.
Multi-robot Automatic Production Line
Authors: Lu Ye , Wang Kai 
Published: January 2021

Abstract
In order to make better research on the intelligent manufacturing process, the automatic production line based on multiple industrial robots is introduced. Firstly, the production line is constructed, and then the composition of each module in the line is described. Secondly, taking one of the six-axis robot as an example, the kinematics is analyzed with D-H method. The trajectory of the robot is planned and stimulated with the hybrid curve method as well as Matlab Robotics Toolbox. Finally, the communication and control process of the system is addressed.
A Mixed-Integer Linear Programming for Nodal Clearing Price in Day Ahead Market Considering Security Constraints
Authors: Sun Guanghui , Wang Xiaowei , Yang Libo , Lu Peng , Ma Bin , Lv Hao , Yuan Long 
Published: January 2021

Abstract
A nodal clearing price model in day ahead market considering security constraints is established. First, the intra-region and inter-region transaction modes are explained, and the order types are shown. The clearing model takes the total social welfare as the goal, considers the security constraints of the network, and specifies the market clearing price expressed by the Lagrangian multiplier. Then the mixed linear programming algorithm is used to solve the model in this paper, and a verification method based on the N-1 criterion is performed. Finally, a numerical case is performed to calculate the clearing price of the network, which illustrates the effectiveness of the proposed method and model.
Simulation and Analysis of Pulse Driving Circuit for Semiconductor Laser
Authors: Miao Weitong , Huang Jun , Chen Haitao , Wang Yuchen , Wang Lei , Ding Shuai , Gan Yupeng 
Published: January 2021

Abstract
Aiming at the problem of how to provide high amplitude, short pulse width and high stability driving power supply for semiconductor lasers, this paper proposes a method to realize constant current pulse output by combining buck circuit, energy storage network and linear regulation module. The hysteresis control of buck circuit is used to control the voltage of energy storage capacitor, and then the PI module is used to adjust the MOSFET working in the linear region to ensure the constant current output on the load. PSPICE software is used to simulate and analyze the designed pulse driving circuit. Through simulation, we can clearly and intuitively understand the influence of various parameters in the circuit on the circuit, so as to optimize the circuit design. The simulation results show that the circuit can achieve high-power pulse constant current output with amplitude of 30A and rise time of 3us on the semiconductor laser load, which provides a reference for the subsequent actual circuit test.
Source Load Forecasting of Customer-side Multi-energy System Based Feature Engineering
Authors: Liu Qian , Wang Jingtao , Zhang Yuanbo 
Published: January 2021

Abstract
Existing research mainly focuses on the single forecasting target and algorithm optimization, rarely mentions how to extract features for forecasting. For the source and load data of the customer-side multi-energy system, the influencing factors are complex and coupled. So, the quality of features gradually becomes the bottleneck that limits its forecasting accuracy. In this regard, based on EDA technology, this paper proposes a source and load forecasting method of customer-side multi-energy system based on feature engineering. First, combined with domain knowledge, perform a more systematic and complete feature analysis for the original observation data. Through this process, we can extract time features, statistical features and combined features. Subsequently, according to the characteristics of the data, the corresponding algorithm is selected to build a forecasting model. Finally, conduct two experiments based on source-side data and load-side data respectively, which proved that this approach can significantly improve the forecasting accuracy.
Research on Building a Power Market Regulation System in Gansu Province and Some Possible Monitoring Methods
Authors: Yang Chunxiang , Shi Yujie , Hao Ruhai , Zhong Xinrui , Zhang Tianyu 
Published: January 2021

Abstract
With the deepening marketization of the electric sector, building power market regulation systems is worthy of concern. As the shaping of the spot market continually goes on in Gansu, market monitoring institutions should be built, market monitoring mechanism should be established, and market monitoring methods should be implemented. This article discusses the situation in Gansu, including the power structure and trading patterns. Then discussed the necessity and path to build a market regulation system. With possible monitoring methods illustrated, this article implemented the methods on past market data, analysed market forces situation, and proposed possible future investigations.
Research on the conductivity of circuit on fabrics based on inkjet printing and electroless deposition technology
Authors: Guo Hua , He Yongyan , Yue Wangfeng , Guo Xinyu 
Published: January 2021

Abstract
Traditional silicon semiconductor substrate based electronic manufacturing has the shortcomings of non-bending, poor biocompatibility, and high cost. Fabric is more suitable for wearable electronic substrate due to its advantages of flexibility, air permeability, and skin-friendliness. We studied the manufacture of the conductive circuit based on inkjet printing and electroless deposition technology and got excellent conductivity and high dimensional accuracy circuit on fabric substrates. Three kinds of commonly used fabric materials cotton, polyester/cotton and polyester are selected to study the key work of surface pre-treatment, inkjet printing circuit pattern, and electroless deposition. The synergetic effect of SU-8 and P4VP (poly-4-vinylpyridine) on fabric ensures that the pattern retains its original size rather than diffusing. The distance between adjacent electric lines is no less than 0.3mm. With the extension of copper deposition time, the copper deposition layer becomes more and more uniform and dense. Sheet resistance reached 0.01Ω after 2 hours of copper deposition. The performance of all three kinds of fabric is similar. And cotton fabric had the best water lock performance. This technology has great potential for promotion and development in the application of intelligent textiles in the future.
Clinical observation of treating Meniere’s syndrome by combining modified Zhenwu decoction and acupuncture at Taichong acupoints
Authors: Fang Fang , Han Guanqing , Wang Zhen 
Published: January 2021

Abstract
Objective: The aim of the research is to observe the therapeutic effect of combination of modified Zhenwu decoction and acupuncture at Taichong acupoints on Meniere's syndrome. Methods: Eighty-eight patients with Meniere's syndrome admitted in the traditional Chinese medicine (TCM) clinic of the hospital were randomly divided into four groups: a TCM group, an acupuncture group, a combined treatment group, and a western medicine group (n=22 in each group). Modified Zhenwu decoction was administrated in the TCM group; acupuncture at Taichong acupoints in both feet was performed in the acupuncture group; the combined treatment group received treatment applied in both the TCM and acupuncture groups simultaneously; and the western medicine group was treated with a vertigo drug, betahistine mesylate tablets. Before treatment, all patients were examined using the rating scale of severity of vertigo and the vestibular symptom index (VSI), to compare score differences. Conclusions: The four therapies all showed significant therapeutic effects on Meniere's syndrome. The comparison among groups revealed that the combined treatment group has better therapeutic effects than the other three groups, exhibiting a significant superiority (P < 0.05).
The application of Internet of things technology in integrity management of urban gas pipe network
Authors: Jiang Shukun 
Published: January 2021

Abstract
On the Internet of things technology in the gas pipeline integrity management the present situation of the study is less. This paper aims to improve the integrity management level of gas pipe network and combines the mature experience of Internet of things in the integrity management of long-distance pipelines. The integrity management system of urban gas pipe network based on Internet of things technology is proposed, and the main application scenarios are analyzed. The results show that the application of Internet of things technology improves the uniformity of data collection in pipe network operation management, promotes the sharing of data, and avoids multiple data conversion. The detection results of various sensing means, methods and instruments can be integrated to ensure the reliability of risk assessment and integrity assessment. To realize the scientific and reasonable allocation of limited human resources and equipment, and to evaluate the effectiveness of the existing integrity management system, to achieve the goal of gradually improving the integrity management. This paper provides specific guidance and ideas for urban gas pipe network management and operation units to carry out high level integrity management.
Application of effect-surface method in enzymatic hydrolysis of corrugated Paphia undulata by microwave acid
Authors: Chen Xin , Chen Hua , Sun Huili , Liang Xin , Xu Feng , Zhang Yongli 
Published: January 2021

Abstract
Application of effect-surface method in enzymatic hydrolysis of corrugated Paphia undulata by microwave acid was studied. In this experiment, the process was optimized, and the influence of microwave acid combined treatment on enzymatic hydrolysis of corrugated Paphia undulata was explored by means of star-point design and effect-surface analysis. The experimental results show that the acid type and concentration of acid, acid type and power of microwave, acid concentration and microwave power, microwave power and microwave time affect peptide yield, under the optimal process conditions, peptide yield can reach 85.67%, the value and the response surface model prediction is very close to 86.62%, star design - response surface model can be applied to small molecular peptides hydrolyzed well optimization of process conditions.
Talent Demand Forecasting Model with Practicability Based on the Theory of ARIMA
Authors: Yu Bozhong 
Published: January 2021

Abstract
The urban development depends on talents, meanwhile, different types of talent demand affects the development direction of a city. The actual talent demand is affected by many factors, and can reflect the economic capacity of a city to a certain extent. Our goal is to predict the potential talent demand of A-City in the next three years. First, we establish a multiple regression model and come to the conclusion that the relationship between talent demand and job demand is lineal and desired profession has a positive effect on talent demand while desired educational background has a negative effect on talent demand. Based on the above analysis results and the theory of ARIMA, we establish a talent demand forecasting model. Finally, we predict the talent demand and three factors of A-City in the next three years.
Development status and prospect of aviation materials in China
Authors: Shi Yuihin 
Published: January 2021

Abstract
Aviation materials are closely related to the development of aviation technology, also indirectly affect the air force. With the rapid development of advanced technologies, the achievements in aviation could well represent the strength of a country. In this paper, the characteristics, status and functions of aviation materials are respectively introduced and summarized in this paper, note that the representative aviation materials, i.e., structural materials (e.g., aluminum alloy, titanium alloy and advanced composite materials) and functional materials (e.g., wave-transmitting composite materials, and wave-absorbing stealth composite materials) are described in details with specific cases. Finally, the future development of aviation materials is analyzed and given.
The organic combination of calligraphy art and environmental design opens up a new path for the development of contemporary calligraphy
Authors: Yin Linjia 
Published: January 2021

Abstract
In the flood of The Times, environmental design in our country is often impacted by foreign culture and loses the flavor of local culture. There are some existing literatures that study the problems of contemporary calligraphy and the application of calligraphy elements in the environment. But there is no discussion on how to improve calligraphy and how to combine contemporary calligraphy with environmental design on this basis to provide help for the inheritance of calligraphy. In view of this situation, this paper opens up a new and feasible way for the inheritance of contemporary calligraphy from the perspective of environmental design. Based on the needs of environmental design and the problems in the creation of contemporary calligraphy reflected in various exhibitions, this paper puts forward corresponding countermeasures for the development of calligraphy, and provides practical Suggestions for the inheritance of traditional culture and the innovation of modern environmental design.
Analysis of Air Pollutant Emission Differences and Emission Reductions of Coal-fired Stoves of Different Residents
Authors: Shi Weiwei , Liu Yongqian , He Yiqun 
Published: January 2021

Abstract
In order to explore the differences in air pollutant emissions of different types of stoves, this study selected five common new types of residential coal-fired stoves (square coal stoves, baffle heat exchange stoves, kang heating and cooking integrated stoves, Gasification forward burning and gasification reverse burning stoves) Simulated combustion and atmospheric pollutant emission level monitoring in the laboratory to quantitatively evaluate the environmental effects of different stoves, identify the influencing factors and causes of differences in pollution emission levels, and propose furnaces Suggestions for improvement of pollution reduction such as R & D and design. The results show that: ① The emission of air pollutants differs greatly among different stoves, and the intensity of pollution emitted by the stoves with kang heating and cooking is the largest. The emission intensity of the three types of atmospheric pollutants (SO2, NOx and particulate matter) is 2.9 kg t-1 It is 1.6 times the average value; stoves using square coal technology have the lowest air pollutant emission intensity, which is 65% of the average value. ②The emission of gaseous pollutants in different furnaces at different combustion stages also showed obvious differences and characteristics. During the fire stage, the NOx emission concentration of the square coal stove is 0.49mg ⋅ m-3, which is 45% ∼ 72% lower than that of other types of stoves; the SO2 emission concentration of the gasification anti-burning stove is 1.38mg ⋅ m- 3. Compared with other types of stoves, the maximum reduction is 28%. ③The factors that affect the emission of atmospheric pollutants of the stove include the application technology and the type of combustion. The stoves with square coal and gasification anti-burning technology have better environmental benefits, but the economic costs of the two types of stoves are 20,000 yuan and 18,000 Yuan, significantly higher than other types of stoves. ④Considering the differences in pollution emissions from different stoves, it is recommended to adopt differentiated economic policies and strict emission and product standards, promote the use of energy-saving and environmentally friendly stoves, and reduce the emission of atmospheric pollutants from coal-fired stoves.
Research on Financial Information Quality Evaluation System of Listed Companies in Low-carbon Environment
Authors: Xie Libin , Huang Miaohuan 
Published: January 2021

Abstract
The era of low-carbon puts forward higher requirements for information transparency of listed companies. This paper analyzes the quality of financial information disclosure of listed companies as the content, and determines the quality evaluation system of financial information of Chinese listed companies under the background of low-carbon. The system has three first-level indicators of "timeliness", "authenticity" and "integrity", ten second-level indicators and nineteen third-level indicators. Then combined with the analytic hierarchy process and the entropy weight method to calculate its weight, a listed company financial information quality evaluation index model was constructed, which provided a reliable basis for listed companies to improve their competitiveness in the low-carbon wave.
Research on regional economic growth differences in China under the Internet Environment
Authors: Wan Linghong 
Published: January 2021

Abstract
Since the reform and opening up, with the rapid development of computer network technology represented by Internet technology, China's economic development level has made remarkable achievements. However, in the process of rapid growth, the imbalance of regional economic development has also emerged. The prominent performance is that there are great differences in regional economic growth in the East, the middle and the west, and the government has actively carried out macro-control. In order to support the introduction of national regional economic regulation and control policies, a variety of studies on regional economic growth are in full swing. At present, there are also problems such as the lack of independent innovation ability in various researches. It is necessary to study and solve these problems in the practice of regional economic development, so as to enhance the comprehensiveness and foresight of the research.
The Structural Design of the Threaded Part of the Premium Connection Tubing
Authors: Hao Long 
Published: January 2021

Abstract
The thread form of the premium connection tubing in unconventional gas well is usually API round thread, which has poor connection performance and make-up performance. In response to this problem, this research redesigned the structure of the threaded part of the premium connection tubing, and applied the improved buttress thread of the casing to the tubing to improve the connection performance and make-up performance. The relevant research ideas or results can be used as a reference for subsequent product development.
Research on Collaborative Innovation Network Mechanism of General Aviation Enterprises Based on Complex Network
Authors: Zhang Liang 
Published: January 2021

Abstract
In order to better promote the collaborative innovation ability among general aviation enterprises and promote the high-quality development of general aviation industry, this paper is based on the social network relationship theory and embeddedness principles, using the general aviation enterprises as structural embedding to determine the key nodes of the innovation network. The value chain, supply and demand chain, and information sharing behavior are used as relational embeddings to build a general aviation enterprise chain innovation network. On this basis, from the aspects of network topology graph, node degree, clustering coefficient, etc., quantitative analysis of the structure and characteristics of the general aviation enterprise innovation network is carried out, so as to lay a foundation for the functional orientation of the main body of collaborative innovation in the aviation industry. The research shows that: At present, the collaborative innovation of general aviation enterprises has not formed a scale. The inn ovation of enterprises mainly relies on large-scale general aviation enterprises with stat e prefix. Most general aviation enterprises have weak innovation capabilities, and the s mall and medium-sized general aviation enterprises are in the initial development stage. Therefore, it is necessary to strengthen the support of various types of general aviation enterprises, provide support in terms of funds and policies and so on, so as to promote the improvement of collaborative innovation capabilities among various types of general aviation enterprises
A Research Review on the Transformation of Old Districts
Authors: He Weiyi , Li Tianyi 
Published: January 2021

Abstract
With the continuous development and progress of urban civilization, the transformation of old districts has become an inevitable trend of urban renewal and development. This paper uses literature research methods to summarize the current status of research on the renovation of old communities at home and abroad and explore the future research directions. It is found that the existing research on transformation of old districts experience and countermeasures can be broadly divided into two categories: renovation status, problems and countermeasures and Retrofit evaluation category. Certain achievements have been made in the research on the renovation technology and management of old communities.
Comparison of actual Levelized Cost of Electricity of solar thermal concentrating solar power plants
Authors: Boretti A , Castelletto S , Al-Kouz W , Nayfeh J 
Published: January 2021

Abstract
Forecasts based on modeling of concentrated solar tower power plants with thermal energy storage of 10 hours daily predict the production of dispatchable electricity at 6 c/kWh. Currently, there is no plant utility size in operation featuring this technology and at this predicted cost. The recent experience of Crescent Dunes, an example of this type of technology, should be used to better estimate the current cost of dispatchable electricity. Crescent Dunes started operation in October 2015 demonstrating since the very beginning the lack of maturity of this specific technology, experiencing a lack of production or no production at all, every single month since starting operation. The 110 MW plant (currently not in operation) provides a cost, excluding repairs and maintenance costs, of 2.38 $/kWh of unpredictable electricity. This experience suggests that every prediction of costs and performances should be based on data of plants built and operating, to avoid the use of models not yet validated to predict performances of novel plants. By surveying other technology based on parabolic through, the current actual costs are here determined for specific latest operating plants in the range of more realistic 8-12 c/kWh.