bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Computer Network Risk Prevention and Control Technology in the Information Age
Authors: Guo Yue , Dong Liang , Zheng Lei , Qiu Shuang , Li Lei , Zhang Xianfei , Gao Hang , Zhang Yintie 
Published: January 2021

Abstract
With the advancement of global informatization, cyber risk has become an important factor hindering the informatization process, and cyber security issues have become the focus of public attention. Computer network security incidents include viruses, Trojan horses, worms, network monitoring, hacker attacks, malware, phishing, botnets, etc. In order to help netizens to prevent network security incidents more effectively, in response to the characteristics of network risk prevention data management, network Research and design of risk prevention database and data warehouse. At present, the development of computer technology is very rapid, but there are still many problems in the security of computer networks. Therefore, in order to avoid these problems hindering the development of the computer, the author analyses and discusses the technology related to computer network security protection in the information age, hoping to solve the computer network security problems and make the computer network more secure.
Correction Calculation of Influence of Back Pressure Change of Extraction Steam Condensing Unit on Unit Power
Authors: Zhang Yanpeng , Zheng Wei , Li Susheng , Zhu Lingkai , Li Si , Shang Panfeng 
Published: January 2021

Abstract
In view of the correction calculation method for the power of extraction condensing steam turbine without back pressure change at present, a simplified correction calculation method for the influence of back pressure on the power of extraction condensing steam turbine is proposed. This method can accurately calculate the influence of back pressure change on the power of extraction condensing steam turbine, so as to provide guidance for the economic operation of extraction condensing steam turbine.
Research on SSD Countersink Defect Detection Method Based on Machine Vision
Authors: Dang Lifeng , Zuo Wenyan , Shi Qin 
Published: January 2021

Abstract
Defect detection of counterbore plays an important role in SSD solid state disk panel automatic detection. Its goal is to accurately find and locate the defect location. At present, the detection of counterbores mostly adopts manual detection, which has the problems of low detection speed, high false detection rate and high missed detection rate. In this paper, the defect detection algorithm of counterbore is studied. After experimental verification, the improved algorithm expansion ⊕ closed operation and Blob analysis tools are finally used for image processing to ensure the integrity of the detection effect and further improve the accuracy of SSD counterbore detection.
Research on Fault Diagnosis Method of Electric Energy Metering Equipment Based on Expert System
Authors: Xu Hongwei , Li Pengcheng , Cong Zhongxiao , Pan Yi , Wu Zhanhe , Ren Xu 
Published: January 2021

Abstract
The realization of the full coverage of the smart meter and the metering automation terminal across the entire network brings great challenges to the operation and maintenance of the field. Aiming at the long-term problems of on-site failure operation and maintenance of the electric energy metering equipment, this paper combines the metering and collecting of failure types to analyse the main causes of equipment failure, based on the field topology structure for fault reasoning, and designs fault diagnosis and fault knowledge base as the core module for fault diagnosis. The expert system has been proved by practice that this method can effectively diagnose and solve the failure problem of the energy metering equipment, which is beneficial to realize the intelligentization of on-site fault diagnosis and improve the on-site maintenance efficiency of the energy metering equipment, and has practical reference value.
A Fault Diagnosis System Based on Case Decision Technology for UAV Inspection of Power Lines
Authors: Li Jianyang , Wu Hui , Hu Chunhua , Yu Chenglie 
Published: January 2021

Abstract
Though Deep Learning CNN is mostly used in UAV power line-inspection system for the application of intelligent image recognition technology, can design image features easily and has strong adaptability to complex environments, but three problems deafly influence the actual results of application system such as insufficient image samples library, scarce labeling samples, and absent open-data source. To conquer these problems, CBR is proposed as a strategy for knowledge reasoning, which transform the similar case-space to a new situation for problem-solving, so the combination of RBR and CBR is expected to construct our flexible case- decision diagnosis system, which integrates efficient machine learning methods to give their full advantages to guarantee the good performance of the system for fault detection. The on spot experimental results indicates our system performs efficiently, assist people in decision-making and can find potential equipment faults.
Research on Efficiency Improvement of High Frequency Transformer in UPS based on Maxwell
Authors: Zhang Peng , Wang Yue , Han Siwei , Liu Heqian , Zhang Jian , Liang Jianquan , Zhang Dewen 
Published: January 2021

Abstract
On-line UPS occupies a large proportion in today's standby power market due to its rapid dynamic response and clean power output. The bi-directional DC-DC converter can replace the directional DC-DC in both commercial mode and battery mode of UPS, and realize the sharing of power transformer, inductor and power switch components in two DC-DC circuits, so as to achieve the goal of large charging current, high power density and low cost. In UPS, the loss of magnetic components is the main factor affecting the efficiency of bi-directional converter. In order to improve the efficiency of bidirectional DC-DC, a high frequency transformer is designed. Maxwell software is used in this paper to simulate the transformer losses in different winding arrangements, so as to select the optimal winding arrangements, reducing the transformer winding losses and improving the converter efficiency. Finally, the prototype is made and debugged to verify the feasibility of the design.
Research on switching loss reduction technology for missileborne DC-DC power supply
Authors: Li Jun , Qi Wei , Wang Shulin 
Published: January 2021

Abstract
With the development of power electronics technology, DC-DC power supply is widely used in secondary power supply system on missile. How to restrain the loss caused by the periodical on-off of the switch tube plays an important role in ensuring the normal operation of the missile-borne power supply system. In this paper, the switching-tube Absorption Circuit and ZCT PWM soft-switching circuit are taken as the research objects, and the effects of the two circuits on the switching-tube loss suppression in the dual-pulse-width modulation mode are analysed, and a more effective method to reduce the switching loss of high frequency DC-DC power supply is obtained, it provides a reference for the further research of switching loss reduction technology in high frequency DC-DC power supply.
Analysis on Several Issues Concerning Sustainable Development of Urban Fringe Green Open Space in Chinese Megalopolis: Taking Three Types of Leisure and Recreation Projects as Examples
Authors: Ling Yang 
Published: January 2021

Abstract
Taking country parks, sightseeing agriculture and golf courses as cases, the paper analyzes the law of the emergence and development of green open space leisure and recreation projects in the fringe of megalopolis in China, based on building of a comparative model of the correlation between different project development stages and the economy and the analysis of the preference of three types of projects in the location of space, transportation and scenic resources. The results show that: ① The three representative recreation projects have basically gone through the "embryonic stage-accelerated development / upgrading transformation stage-sustained and stable development stage", as well as the different development stages of the three kinds of projects are related to some specific nodes of urban per capita GDP. ② The higher the degree of public welfare of the type of recreation project, the later the start and development, and vice versa. The emergence of golf courses is earlier than that of sightseeing agriculture, while the emergence of country parks is much later than both. At the same time, the non-public welfare recreation projects driven by market capital obviously have a more sustainable and strong development power than the public welfare recreation projects led by government investment. ③ The three types of recreation projects are consistent in the location of space, transportation and scenic resources, and are bound to face fierce spatial competition in the limited urban fringe of megalopolis. ④ From the three aspects of strengthening the development guidance of recreation projects, gradually optimizing the spatial layout of recreation projects and optimizing the allocation of traffic infrastructure, this paper puts forward some countermeasures and suggestions for optimizing the recreation utilization of green open space in urban fringe.
Synthesized and characterization of open-ended Ta3N5 nanotube arrays for the preparation of growth template
Authors: Hu Yanling , Yuan Ronghuo , Zhang Zenghui , Zheng Yufan , Ma Tongmei 
Published: January 2021

Abstract
In this article, a two-step anodization method was applied to tantalum foils to grow compact open-ended tantalum oxide nanotube arrays, which were subsequently subject to high temperature nitridation. The nitride nanotube arrays were characterized with SEM, XRD, and electrochemical tests including I-V and Mott-Schottky analysis. The phases in the nitrided nanotube arrays may consist of Ta3N5, TaN, TaN0.5, N-Ta2O, or the amorphous oxide. The duration of the second anodization step was found to play a key role on the microstructure and the carrier density of the nitride nanotube arrays. It is found that the duration of the second anodization has to be more than 20 min to obtain a specimen with a top layer of Ta3N5, which can work as a photo electrode or a template for the growth of photo catalyst nanomaterials.
Research on the performance of water-lubricated hydrodynamic spiral groove thrust bearing
Authors: Gan Xianming 
Published: January 2021

Abstract
Hydrodynamic spiral groove thrust bearing with water lubricated is widely used in precision instruments, such as motorized spindle. And its test research has always been a hot research direction. The purpose of this paper is to solve the difficult problems in the construction of the test-bed for hydrodynamic spiral groove bearing. The test-bed for hydrodynamic spiral groove bearing is designed, and the parameters such as axial stiffness coefficient, volume flow rate and friction torque are tested with the spiral groove thrust bearing as the research object. The general laws of the static characteristics of the hydrodynamic spiral groove thrust bearing are obtained, and the test-bed designed in this paper is verified it is practical in the test and research of hydrodynamic spiral groove thrust bearing with water lubricated.
Study on influencing factors of void fraction of asphalt mixture based on grey correlation
Authors: Lv Xiping , Liu Haijun , Li Shanqiang 
Published: January 2021

Abstract
grey relational analysis method has been widely used because it is applicable to small samples, irregular samples and has a small amount of calculation. For the study of shear compaction forming factors affecting air void of asphalt mixture, this paper studies a set of shear compaction meter uniform specimen preparation methods, and based on this through the grey relation analysis method the study type of asphalt, asphalt content, shear compaction times and fine aggregate level matching specimen void fraction, and it is concluded that the factors impact on the specimen void fraction size. The results show that the grey correlation method is an analytical method suitable for studying the influencing factors of the voidage of asphalt mixture. Among the influencing factors, the shear compaction times, the ratio of oilstone and the mass fraction of particle size <0.075mm are the three main factors affecting the voidage of shear compaction specimens. The research results have certain guiding significance for asphalt mixture design and construction quality control.
Predicting the Anti-Inflammatory Mechanism of Polygonum perfoliatum L based on Network Pharmacology
Authors: Zhang Mei , Huang Xulong , Xu Feng , Qin Ping , Din Qin , Fang Rongze , Wang Xiangpei , Wu Hongmei 
Published: January 2021

Abstract
Objective: To study the mechanism of anti-inflammation of Polygonum perfoliatum L by network pharmacology. Method: The active ingredients of Polygonum perfoliatum L were screened using TCMSP database, the active ingredients-target network and protein interaction network were established. The biological functions and pathways involved in the target were analyzed. Results: 11 active ingredients were obtained by screening. The network analysis indicated that the active components of Polygonum perfoliatum L involved 183 protein targets including Serpinel, Akt1, Nos3, Tnf, Casp8, Bcl2l1and multiple protein targets related to the MAPK signaling pathway, etc. The medicine had anti-inflammatory effects by regulating many signaling pathways such as PI3K-Akt signaling pathway, MAPK signaling pathway, Toll-like receptor signaling pathway, and HIF-1 signaling pathway. Conclusion: This study reflects the medicine multi-component-multi-target-multi-path therapy. It provides new ideas and new directions for further research on the mechanism of anti-inflammatory effects of Polygonum perfoliatum L.
Interaction effect of phenanthrene degradation on nitrogen transformation in heterotrophic nitrification and aerobic denitrification systems
Authors: Fan Lin , Zhou Bo , Sun Ran , Chan Jiangwei , Hu Sihai , Zhang Jianghua , Wu Yaoguo 
Published: January 2021

Abstract
The heterotrophic nitrification and aerobic denitrification (HNAD) system plays an important role in treatment of nitrogen pollution in water, and nitrogen transformation is closely related to carbon source. In this study, in order to explore the interaction between nitrogen conversion and phenanthrene degradation under the HNAD system, different concentrations of phenanthrene (0, 3, 6, 9 mg/L) were used as the typical and only carbon source of microorganisms, and different concentrations of ammonium nitrogen (0, 25, 50, 75 mg/L) and nitrate nitrogen (0, 25, 50, 75 mg/L) were used as nitrogen sources of microorganisms. The results showed that with the increase of phenanthrene concentration, the degradation rate of ammonia nitrogen gradually increased, which was higher than that of the control by 24.9%. With the increase of phenanthrene concentration, the inhibition effect was more obvious, and the denitrification effect was weakened. The addition of ammonia nitrogen and nitrate nitrogen accelerated the degradation of phenanthrene. As the increase of the concentration of ammonia nitrogen and nitrate nitrogen, the degradation rate of phenanthrene gradually increased. The degradation rate of phenanthrene can reach 100% and 98.8% when the concentration of ammonia nitrogen and nitrate nitrogen was the highest. This may be related to the fact that a large amount of inorganic nitrogen can promote the assimilation of microorganisms and accelerate the co-metabolism of phenanthrene degradation by microorganisms. In short, there was an obvious interaction effect between the degradation of organic carbon source and the conversion of nitrogen in the HNAD system.
Detritus processing based on intelligent metal detritus compression system
Authors: Xing Yan , Yang Yunpeng , Guan Yuanyuan , Fu Zhenyi , Gou Yue 
Published: January 2021

Abstract
Based on the automatic metal particles forming machine of treatment is all kinds of machinery manufacturing processing compressible metal shavings a way of processing, based on the actual production needs, intelligent choice of metal debris processing system, the corresponding equipment technical parameters and design to meet the basic mode of production of CNC machine tool chip compression, practice has proved that the sum up the results of the selection and design of metal elastic compression processing system has important significance.
Research on Spatial Management of Water Environment in Chaoyang City
Authors: Gao Jun , Song Lingling 
Published: January 2021

Abstract
The research put forward the technical methods for dividing the water environment management units in Chaoyang City. Based on the river basin and the characteristics of urban drainage, the catchment units with "monitoring section-control and section-corresponding and land area" were constructed for the main rivers in Chaoyang City. The sensitive areas and fragile areas were identified based on the water environment control units. Pollutant discharge surveys on key water environment control units were conducted. And this paper calculated the water environment capacity, analysed the potential improvement of the water environment quality. Water environment management and control requirements were also proposed in this paper.
Research on Application of Ceramic Materials in Public Art Environment
Authors: Fang Mengqi , Chen Haowu 
Published: January 2021

Abstract
The goal of this paper includes three aspects. First, we want to study the current situation of the use of materials in public art. Second, we want to explore the advantages and disadvantages of ceramic materials. Third, we want to study the utilization of ceramic materials. For this propose, we discuss the application scheme of ceramic materials in public art, and try to understand the influence of ceramics on public art. Then, we consider the relationship of ceramic materials in public art with modern science and technology. According to the application principles and forms of ceramics, the application of ceramic materials in public art is analyzed to confirm the contribution and availability of ceramic materials to public art.
Research on the changes and influencing factors of Air pollution Policy in China
Authors: Liu Chunfang 
Published: January 2021

Abstract
Since 1979, Chinese mainland has made great progress in air pollution control, and its policy control and effectiveness problems are gradually emerging. Through literature review, investigation and research, this paper introduces the air pollution policies of Chinese mainland in the past 40 years, analyzes three factors that affect the effect of the policies: "power structure", "strategic behavior" and "social capital", so as to provide a reference path and direction for deepening the research of air pollution policies.
Research on the coordination between tourism economic development and environmental protection in "Internet celebrity city "-- Based on short video platform
Authors: Pan Weian 
Published: January 2021

Abstract
As the network environment is increasingly optimized and mobile intelligent devices are widely promoted, short video, as a new way of social contact, has shown "blowout" development. A number of cities and scenic spots have also become popular on the Internet, attracting a large numbers of tourists. Taking Internet celebrity short video as the research object, this paper discusses the role of Internet celebrity short video on the tourism economic development of " Internet celebrity city", and analyzes the environmental problems existing in " Internet celebrity city". On this basis, the corresponding environmental protection strategies are put forward to provide reference for the " Internet celebrity" city how to maintain the coordinated development of tourism economy and environmental protection.
Study on a new treatment method for classic pollutant diclofenac from the pharmaceutical factory
Authors: Li Yinghan , Luo Zheng , Zheng Kaiyun , Guo Fengbo , Zhao Rong 
Published: January 2021

Abstract
As a classic component of non-steroidal anti-inflammatory drug (NSAID), diclofenac has the anti-inflammatory, analgesic and antipyretic effects. As a result, the medical wastewater discharged from some diclofenac pharmaceutical factories may contain a certain amount of diclofenac. This pollutant is toxic and harmful to livestock, and if the livestock have digested diclofenac, it will affect their cellular metabolism process, cellular components and protein catalysis, which may even cause mass deaths under severe situation. An effective treatment method for this pollutant is to adopt composite aerogel adsorption. This paper briefly introduces the modification plan of cellulose and the process of using cellulose to adsorb diclofenac sodium (DCF), compares the adsorption effects before and after modification, and proposes a new direction to treat this kind of pollutant based on the comparison results. In this paper, by using cotton fiber as the material and polyvinylamine as the modifier, the hydrothermal synthesis method is employed to prepare the rGO/cellulose composite aerogel material, and the characterization analysis of its structure and performance is also conducted. The characterization results of SEM, EDS, XRD. FTIR etc. show that the composite aerogel material prepared in our experiment has maintained the crystal structure of cellulose, which has obvious 3D porous structure, and its specific surface area reaches 354.7m2/g. In addition, the material surface contains abundant amino, hydroxyl, C=N and other functional groups. Secondly, with diclofenac sodium as the targeted pollutant, this paper investigates the performance and mechanism of using rGO/cellulose composite aerogel to adsorb diclofenac sodium. The experimental results show that the rGO/cellulose composite aerogel presents outstanding performance in adsorption of DCF, which is significantly superior to the performance of cellulose aerogel material. When the rGO/cellulose composite aerogel and the cellulose aerogel are used to adsorb DCF, their maximum adsorption capacities are 242.94mgg-1 and 47.82mgg-1, respectively. In addition, the process of using composite aerogel to adsorb DCF satisfies the Langmuir isothermal adsorption model and the pseudo-second-order kinetic model, which indicates that this adsorption is chemical adsorption mainly consisting of monolayer adsorption. The thermomechanical analysis shows that the adsorption of DCF using composite aerogel is spontaneous exothermic reaction. In the meantime, the composite aerogel has wider pH adaptability, and it presents great adsorption efficiency of DCF within the pH range of 4-10.
Research on fire inspection robot based on computer vision
Authors: Liao Yifan , Xiong Shipeng , Huang Yangyang 
Published: January 2021

Abstract
With the rapid development of robots in the world, robots in various application scenarios have come into people's sight, especially various inspection robots appear in people's lives. At present, the application of fire patrol robots is more and more. Now, the fire patrol robots used in the warehouse are all land patrol robots. When they work on the designated route, they have high requirements for the environment. When there is a complex environment with uneven ground, it will have a great impact on the robot. This rail mounted fire inspection robot is running on the track, and the platform can be inspected without dead angle. It has low environmental requirements, high inspection efficiency, real-time alarm, and uses computer vision platform to track, which improves the accuracy of fire source identification. In this design, STM32F4 single chip microcomputer is used as the main control of the whole system, which is completed with a number of servo motors, alarms and other hardware, and computer vision and robot main control data interaction.