bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on partial discharge pattern classification of GIS by adaptive neuro-fuzzy inference system
Authors: Lu Yufeng , Su Yi , Liang Zhaoting , Lu Yifan , Huang Jinjian 
Published: April 2020

Abstract
In this study, a PD defect identification system based on linear discriminant a nalysis and adaptive neural fuzzy inference system is developed. in this study, the par tial discharge signs of typical defects of the GIS measurement were measured with a measuring device. the corresponding characteristic parameters extracted from the GIS measurement were filtered according to the optimization algorithm and stored in the form of three-dimensional discharge mode (q-φ-t). On this basis, the 3d discharge mode is converted into statistical parameters. statistical pd features can be used for defect classification purposes, but it is clear that for this goal, the treatment of sovolume data base will be inefficient. therefore, it would be very helpful to select those features t hat are more effective and more efficient to identify and distinguish potential pd defects through their relevant statistical parameters. Select feature extraction techniques for dimensionality reduction. In solving pattern classification problems, feature extraction methods are usually used as preprocessing techniques, which cannot only reduce the computational complexity, but also achieve better classification performance by reducing irrelevant and redundant information in the data.
Study on the Impact of Withdrawal of Subsidy Policy for NEV Enterprises and Coping Strategy
Authors: Li Hongwei , Ren Huanhuan 
Published: April 2020

Abstract
Against the backdrop of rapid withdrawal of the NEV subsidy policy, the paper has built a calculation model to evaluate the price increase pressure upon NEV under different levels. The study has found that BEVs are confronted with greater pressure of price increase than their plug-in hybrid counterparts, and SUVs will get rid of price increase pressure more quickly than sedans. In response to the upcoming non-subsidy era, enterprises are actively planning strategies such as building high-end brands, building product platform, conventional energy vehicles and new energy vehicle sold on different networks, surrendering part of the profits, joint promotion by governments and enterprises, innovative business models, etc. At last, the study has also proposed different strategic suggestions for different types of enterprises.
Research on power grid technical reform planning model based on overall cost constraint
Authors: Xin TIAN , Xinyang HAN , Xiaoling JIN , Shixiong QI 
Published: April 2020

Abstract
For a long time, the technical reform of the power grid has improved or updated the existing power grid facilities to achieve the effect of low-cost and improved grid operation efficiency. In recent years, the development of power grid has entered to a high-quality development stage, the technical reform of the power grid has been continuously improved. In the actual compilation, the grid technical reform plan usually uses historical data for qualitative analysis, which lacks quantitative optimization analysis considering power constraints and improvement indicators. Based on the power grid planning mathematical optimization model, this paper establishes a technical reform optimization model that comprehensively considers the power grid technical reform planning cost and load shedding cost, and uses the improved IEEE 30-node example to verify the model. The verification results show that the model can obtain the optimization of the technical reform route planning and can effectively guide the preparation of power grid technical reform planning, which has practical significance.
Research on Line Selection Method of Single-phase Earth Fault Based on Improved Dynamic Time Bending Distance Similarity Word
Authors: Huo Min , Fu Zhouxing , Zhang Junming 
Published: April 2020

Abstract
The problem of fault line selection for the distribution network of neutral point via arc suppression coil grounding has not been solved for a long time. Based on this, a single-phase ground fault line selection method based on dynamic time bending distance similarity is proposed. Firstly, the single-phase ground fault feature analysis of the distribution network of the zero-mode network is used to determine the electrical characteristic quantity of the single-phase ground fault line selection. Then, the faulty electrical feature quantity is improved by the dynamic time bending distance algorithm to form the distance matrix. The similarity data processing is performed on the matrix to obtain a line selection vector, and then the fault line is selected. Finally, the single-phase ground fault system model of 10kV distribution network is constructed by Matlab/Simulink. The correctness and feasibility of single-phase ground fault line selection method based on the dynamic time bending distance similarity is verified by simulation under different fault conditions.
Research on Optimized Configuration of Microgrid with Distributed Energy in Commercial Users in Hainan Province
Authors: Zhao Jing 
Published: April 2020

Abstract
The paper research object is the microgrid of commercial users in Hainan Province. Based on local power load, illumination and other related data, by using Homer Grid Software, the paper builds the model focusing on the microgrid composed of solar energy and battery. The paper simulates different economic operation plan and eventually select the most economical microgrid networking solution. Compared with the traditional grid power supply mode, we can see that the power generation cost of the optical storage microgrid system is greatly reduced. Zero emissions of pollutants are realized, which protects the ecological environment.
Studies on evaluation index system for the canvas stow net operation performance via the vague APH method
Authors: Rao X , Huang H L , LI L Z , Chen S , Yang J L 
Published: April 2020

Abstract
Based on the questionnaire data of specialist, the first level and second level index and respective weight distribution of evaluation index system for canvas stow net operation performance were obtained. The weight of index was adjusted through consistency judgment for assuring the rationality of index weigh. Evaluation index system was established based on the above mentioned studies, and the reference basis was provided for the evaluation of canvas stow net operation performance in the future. Based on the questionnaire data of fishery experts, in this studies, the vague APH method was used to determine the first and second level index of the performance evaluation system of canvas stow net and the corresponding weight, the index weight through the consistency test was adjusted to ensure the rationality of the index weight of the evaluation system. On the basis of the above, a performance evaluation model was built, which can provide reference and basis for future performance evaluation.
Effects of seal face width on the contact characteristics between the end faces for contacting mechanical seals
Authors: Wei Long , Fang Guifang , Liu Qihe 
Published: April 2020

Abstract
In order to research and master the effects of seal face width on the contact characteristics between the end faces for contacting mechanical seals, based on the contact fractal model and average film thickness fractal model of the seal face, the effects of seal face width on the contact characteristics between the end faces for contacting mechanical seals was analyzed by simulation calculation. The calculation results show that with the increasing seal face width, the film pressure factor of seal faces increased linearly, the average film thickness increased continuously, but the increase amplitude decreased gradually, the asperity bearing area ratio decreased rapidly at first and then changed slightly, the elastic contact area ratio increased approximately linearly, the elastic-plastic contact area ratio and the plastic contact area ratio decreased approximately linearly. There exist elastic, elastic-plastic and plastic deformed asperities at the same time between the seal faces. Among them, the proportion of elastic contact area was the largest and that of plastic contact area was the smallest.
Study on Alloying Yield in Deoxidization and Alloying of Iron and Steel
Authors: Lin Chenyang , Liu Shuaijun , Zhang Linli 
Published: April 2020

Abstract
With the development of the iron and steel industry, the automation of iron and steel smelting batching scheme has become the research focus of the present. In this paper, Grey correlation model is established and the ranking of the factors influencing the yield of alloy is obtained. By establishing the stepwise regression model, the predicted value of alloying yield is got. The predicted value and the actual value of alloying yield are compared by MATLAB, which proves that the predicted value of the model is accurate and the accuracy is high. The model and conclusions are of guiding significance to the production and smelting of alloy steel.
Study on the industrial feasibility of adding lignite for blast furnace
Authors: Zheng Xiaojiao , Yin Shubiao , Lei Ting , Yang Xiaoyuan , Zhang Baoqing , Liu Qiancheng 
Published: April 2020

Abstract
Lignite resources in China are abundant and cheap. The application of lignite resources is one of the promising solution for the energy crisis of industries in China. In the present work, the resources of coal mines around Kunming, Yunnan Province, P.R. China were investigated. After considering various factors, the Mile coal was selected as the supply for the lignite experiment. Conducting the industrial analysis and properties experiments on the single lignite and mixed coal of different proportions. On the basis of ensuring safety, and the coal blending structure of 60% anthracite-35% bituminous coal-5% lignite has been selected for the industrial test in no. 3 blast furnace of a steel plant. At the same time, the data of the blast furnace condition in the reference period and the test period were collected and compared. We can conclude that the blast furnace with 60% anthracite-35% bituminous coal-5% lignite injection test was stable, safe and feasible. Finally, according to the replacement ratio of lignite and bituminous coal, the economic benefits of lignite instead of bituminous coal was evaluated, and the results were more optimistic, which achieved the effect of reducing costs for the factory.
Comparison of China-ASHRAE HVAC Design Criteria in Coal-fired Power Plants
Authors: Cheng Li , Feng Haibo , Guo Hongbing 
Published: April 2020

Abstract
This paper investigates the requirements of Chinese and ASHRAE HVAC design manuals and codes for various types of buildings within the power plants. By analysing the characteristics of HVAC basic design criteria for different building areas, the summary of similarities and differences between these two design systems are found. This paper studies the applicability and adaptability of Chinese HVAC design system as an auxiliary design basis in foreign power plant project, aiming to provide the basis for the selection of HVACdesignfor foreign design of power plant projects.
An Auxiliary Device for Realizing the Rapid Replacement of UHV Composite Insulators
Authors: Hao Guo , LongYang  , Peng Li , Zhaohui Zhen , Dun Mao , Wenyuan Zeng 
Published: April 2020

Abstract
In view of the problem that it is difficult to replace the UHV composite insulator quickly due to the large stress of the composite insulator in hot-line work, an auxiliary device for realizing the rapid replacement of UHV composite insulator is developed in this paper. By designing the mounting and connecting parts suitable for the installation of UHV insulator and yoke plate, the stress at the joint part of insulator is transferred so that the insulator and connecting part of yoke plate can be broken away without stress. The device is light and flexible, which can effectively improve the working efficiency of hot-line working operators.
Economic Applicability Evaluation of Drainage Gas Production Technology in Tight Sandstone Gas Reservoir
Authors: Yan Linlin , Li Yongbin , Liu Ji , Wang Meng , Chen Li , Yang Fan 
Published: April 2020

Abstract
With the development of Sulige gas field, the recovery degree of the gas field increases gradually, the formation energy decreases continuously, the proportion of water-producing gas wells increases year by year, and drainage gas production has gradually become the main technical means to stabilize production and increase production. Under the requirement of low cost, quality improvement, efficiency enhancement and benefit development, according to the production characteristics of gas wells in Sulige gas field, a judgment model of gas well liquid accumulation is established. Sensitivity analysis and model simplification of critical liquid carrying flow method are carried out to analyze the economic applicability of various drainage gas production technologies. The research shows that the early intervention of drainage gas production technology in gas wells at the initial stage of liquid accumulation can effectively prolong the period. Gas well life cycle, improve gas well recovery.
Decreasing and Migration Process of Oil Spill at Sea
Authors: Yang Dongfang , Li Haixia , Lin Dong , Zhang Yuan , Wang Qi 
Published: April 2020

Abstract
Based on the survey data of Jiaozhou Bay in May, August and October 1992, the migration and variation of PHC content in offshore oil spill in Jiaozhou Bay were studied. In August, Station 2106 at the eastern central Point of Jiaozhou Bay was taken as the source of offshore oil spill, and its PHC content was 0.056 mg/L. A series of concentric circles with different gradients formed around there, and there was a descended distribution trend from the center to the periphery along the gradient. The content of PHC decreased from 0.056 mg/L at the center to 0.024 mg/L in the central water, 0.027 mg/L in the northwest water, 0.041 mg/L in the northeast water and 0.048 mg/L in the southeast water. According to the horizontal absolute loss velocity model of material content, it was calculated that the horizontal absolute loss velocity of PHC content in the surface waters from the eastern central water to the central water of eastern Jiaozhou Bay in August was 0.45 Yang Dongfang absolute number, and it decreased to 0.42 in the northwest water, 0.36 in the northeast water, and 0.29 in the southeast water. According to the horizontal relative loss velocity model of material content, it was calculated that the horizontal relative loss velocity of PHC content in the surface waters from the eastern central water to the central water of eastern Jiaozhou Bay in August was 8.03 Yang Dongfang absolute number, and it decreased to 7.50 in the northwest water, 6.42 in the northeast water, and 5.17 in the southeast water. Therefore, with Station 2106 in the eastern central Point of Jiaozhou Bay as the source of offshore oil spill, there was a descended PHC content distribution trend from the center to the periphery with the horizontal absolute loss velocity of 0.29-0.45 Yang Dongfang absolute number and the horizontal relative loss velocity of 5.17-8.03 Yang Dongfang relative number. The rising PHC content distribution was consistent with that of the horizontal absolute (relative) loss velocity of PHC content: that of the central water < that of the northwest water < that of the northeast water <that of the southeast water. PHC content indicates the variation amount from the source to certain water, namely terminal value. The horizontal absolute (relative) loss velocity of PHC content indicates the variation process from the source to certain water, namely process value. This reveals that both the terminal value and the process value of PHC content present the migration process of PHC content in waterbody. According to the horizontal velocity model of Yang Dongfang material content, the decreasing and migration process of PHC content toward the periphery along the gradient can be calculated and quantified.
Monitoring and analysis of ball milling process based on acoustic signal inversion
Authors: Deng Jiacheng , Zhang Yi , Huang Ao , Wang Runfeng , Gu Huazhi , He Jian 
Published: April 2020

Abstract
In order to understand the real-time material particle size inside the ball mill tank in the current actual ball mill process, the process for sampling and detection should be paused, which is very time-consuming and laborious. Through the real-time monitoring of the acoustic signals, the particle size of the materials in the tank can be indirectly detected according to the change of the acoustic signals so that the ball mill can be more efficient, energy-saving and convenient. In this paper, a method of collecting, analyzing and processing acoustic signals was designed by using acoustic signal collecting equipment and computer software in the process of ball grinding. The results show that the peak number of acoustic signal varies with the particle size of ball mill, and there is an obvious functional relationship between them. The ball milling process can be monitored and improved based on acoustic signal inversion.
Study on the Protective Difference between Fresh-keeping Packaging and Conventional Packaging in the Production of Yellow Spot Cigarettes
Authors: Zheng Han , Zhang Ying , Zhan Jianbo , Wang Hao , Li Geng , Yu Zhenhua , Li Xiangzhen , Xie Jiao , Wang Xu , Jiao Jun , Yu Tingting , Yu Yao , Yue Baoshan 
Published: April 2020

Abstract
In the process of unpacking cigarette packaging consumption, packaging materials and packaging design have an important impact on cigarette quality. Effects of fresh-keeping packaging on water retention performance, sensory quality and risk control of yellow spot cigarettes were studied in this paper. The results show that the stability of sensory quality of fresh-keeping packaging is better than that of conventional packaging. The differences of packaging type, material and technology will lead to the differences of water retention performance, but the differences are not obvious. Compared with the conventional packaging, the fresh-keeping packaging can effectively reduce the risk of yellow spot cigarettes and realize the risk control.
Friendly Organic Fertilizer for Green Environment: Exploring Farmers Knowledge and Skills
Authors: Siswati Latifa , Rizal M. , Ratnaningsih Ambar Tri , Yenita Riski Novera 
Published: April 2020

Abstract
Environmental friendly organic fertilizer is needed a lot of farmer’s knowledge and skill. This survey research focused on two specific matters namely farmers’ skill and knowledge. The method will be designed to take the sample using purposive sampling to ensure sufficient data. Bukit Agung Village in Kerinci District, Kabupaten Siak was chosen as a research place as it well-known place for their farming activities. Questionnaires and interviews were used to collect the data. The produced result was most of the farmers already using organic fertilizer as a substitute for artificial fertilizers. Also, most of the farmers already have high knowledge of using organic fertilizer and how to use organic fertilizer.
Tropic Level Status of Dumai River Esutuary Based on Chlorophyll-Content
Authors: Nedi S , Effendi Irwan , Elizal Elizal 
Published: April 2020

Abstract
Chlorophyll-a, an active pigment found in phytoplankton, is an indicator of phytoplankton biomass and can be used as an indicator of tropic level status of a waters. Dumai River estuary, a transition zone between river and maritime environments of Rupat Strait, are subject both to marine influences, such as tides, waves, and the influx of saline water, and to riverine influences, such as flows of fresh water and sediment. The mixing of sea water and fresh water provide high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. The number of surrounding industrial and domestic activities can lead to changes in the ecosystem of the estuary. This study aims to assess the distribution of chlorophyll and tropical level status of the waters of the estuary of Dumai River. It was noted that the the content of chlorophyll-a Dumai River estuary ranges from 0.75 to 2.26 ug/l, in which the highest level was at station 3. Based on tropical level criteria, the waters of Dumai River estuary is indicated as oligotropic to mesotropic waters, meaning that these waters are less productive.
Forest Destruction in Riau Province: Identifying the Company’s Legal Responsibility
Authors: Fahmi Fahmi , Yenni Triana 
Published: April 2020

Abstract
Problems on companies' responsibility for forest degradation in Riau Province still have been argued for a long time. Given the legal provisions on Corporate Social Responsibility, it gives freedom to the public on corporate responsibility between government and community can coordinate each other in law enforcement. The purpose of this research is to identify how the company's legal responsibility for forest destruction in Riau Province. The method of this research is sociological law research, which focuses more on emerging problems focusing on the discussion of law and sees how the law is practiced in society. The nature of this research is the field research. The result of the research is that the company's law responsibility towards the destruction in Riau province has not been able to take the responsibility maximally. There needs to be coordination and cooperation with the relevant organization to enforce the law smoothly. The conclusion of this research is to maximize coordination step towards related institution by asking for accountability of various parties in order not to avoid forest destruction such as like, forest and land fire in Riau Province. The output of this research is scientific articles as a learning materials lecture for students and dedicating to the community and related parties.
A Guideline on Designing a Safe and Appropriate Grounding System: A Review of Selected Papers
Authors: Liliana  , David Setiawan 
Published: April 2020

Abstract
This study to review scientific articles from some of the international journal, published from 2005 to 2017. This study focused on articles that discuss how reduce grounding resistance. The article is discussed systematically, criticized, and analyzed. To secure the system from the disorder, we need to design a system. This system was later known with the grounding system. The criteria used in the review journal is focused in terms of: how reduce grounding resistance with electrode be planted a single or parallel, giving conductive material/reducing material, including some of the methods used in reduce grounding resistance specific to regions with high soil resistivity, and the obstacles faced. The discussion on the above issue is a major problem in the article. The article that reviewed published in language of United Kingdom from 2005 to 2017. The analysis of reviewing 20 journal produces two staples of the discussion is existing problems in the grounding system and optimal way in reduce grounding resistance. The reduction of resistance on the location of the grounding that have very high soil resistivity needs to be done, some way is offered in several articles that are discussed so that it could be a guideline the planners in designing a grounding system that is safe and appropriate for the system to be secured.