bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of analytic hierarchy process in performance appraisal system
Authors: Shi Gao-Yang , Wang Xiao-Yan 
Published: October 2020

Abstract
Based on the KPI and BSC assessment method commonly used in management, combined with the analytic hierarchy process in mathematics, the core algorithm of the assessment system is updated, the weight of each assessment element is scientifically measured, and the requirement of fairness and justice in the assessment function of the system is guaranteed, which provides scientific basis for the final performance appraisal results. Zero client B/S architecture is adopted, and UML modeling is used for system analysis. Modeling methods such as timing diagrams are used in the system design, and combined with JavaWeb technology to complete the construction of system pages and interaction with the server. It realizes the design and development of the performance appraisal system, and makes human resource management more scientific and convenient.
An evaluation method of government micro-blogging service quality based on user behavior analysis
Authors: Wang Suozhu , Guo Tianhao , Gao LinQi 
Published: October 2020

Abstract
As a new channel and way for the government to provide public services, how to accurately evaluate the service quality is the key to its healthy and rapid development. The government micro-blogging service quality evaluation index system is constructed and the calculation methods of the evaluation indexes are given in this paper. It contains four dimensions, namely, government micro-blogging construction quality, government micro-blogging functional service, user interaction behaviour and benefit-cost. On this basis, an evaluation process and method of government micro-blogging service quality that integrates subjective and objective indexes is proposed based on the idea of fuzzy comprehensive evaluation in this paper.
The Research on Effectiveness Evaluation of Mobile Broadband Wireless Communication System
Authors: Gao Lijuan , Chen Long , Yu Fengkun 
Published: October 2020

Abstract
It analyzes the classical methods of the effectiveness evaluation based on the research of the steps and principle of system effectiveness evaluation. It builds the indicator system from three aspects, such as: basic communication ability, communication reliability and interconnection ability, based on the characteristics and applications of wireless communication system. Then it evaluates the effectiveness of wireless communication by ADC method which can provide some suggestions for the system development.
Research on clustering method of government micro-blogging user group based on user preference
Authors: Guo Tianhao , Wang Suozhu 
Published: October 2020

Abstract
The goal of government micro-blogging is to provide the public with faster government services. Therefore, it is of great significance to study the characteristics of users and cluster analysis to provide personalized services and microblog operation management. A user preference measurement method based on the usage behavior data of users’ retweeting, commenting, and praising on the government micro-blogging platform is proposed and a user group fuzzy clustering method based on user preferences is given in this paper. An example is given to illustrate the effectiveness and feasibility of the method proposed in this paper.
Study on Residential Smart Lighting under the Perspective of Light and Space
Authors: Song Jia , Wang Zun , Zou Nianyu , Wang Zhisen 
Published: October 2020

Abstract
Focusing on the current residential lighting, it does not meet the basic lighting function, and ignores the residents’ visual and psychological acceptance. Its insufficient brightness severely violate people’s lighting life. In response to this problem, this article discusses intelligent lighting theory around the internal atmosphere of the theme from the perspective of light and space, with communities and people as the main body. The idea that lighting should be centered on people was proposed. The relevant evaluation model was used to provide data support by this paper for strengthening internal functions from the perspective of community space, the improvement of the internal atmosphere of the community was completed and the conflict between the lighting and people’s emotions were eventually eased.
Determination of the width of Haihua Island branch channel based on simulation test
Authors: Xu Yisen , Wang Fengwu , Yin Zhongxun , Liu Sihang 
Published: October 2020

Abstract
In order to ensure the safe navigation of ships, it is necessary to provide ships with sufficient fairway width for navigation. We selected a suitable ship model, extracted the ship test track zone through simulation test, selected the track point along the edge of the track zone, and integrated it. According to the distribution of edge track points, the channel should be appropriately widened so that most of the track points are within the new channel. The width of the channel widened by the edge track point has a good consistency with the calculation results of the “General Design Specification for Seaports”, indicating that it is feasible to determine the channel width using this method.
Fighting COVID-19 with Fever Screening, Face Recognition and Tracing
Authors: Tan Weijun , Liu Jingfeng , Zhuo Yue , Yao Qi , Chen Xing , Wang Wei , Liu Rushuai , Fu Yu 
Published: October 2020

Abstract
Since the outbreak of COVID-19 corona virus in late 2019, it has become a tremendous threat to the whole world. Driven by the mission to save lives, we develop a fever screening and tracing system which can detect patients with fever symptom, and identify the patients using face recognition. In addition, our big data AI platform enables the tracing of the patients possible. A real-time alert sent to the personnel on duty on a web or mobile app activates the action to trace the patient and the close contacts providing an effective means to control the spread of the virus.
Load stability analysis of Kazakhstan photovoltaic power system based on data visualization
Authors: Wang Liang , Zhang Chen 
Published: October 2020

Abstract
Traditional methods can not track the load migration of Kazakhstan photovoltaic power system dynamically, and the analysis results have limitations. Therefore, this paper introduces the data visualization method to analyze the load stability of Kazakhstan photovoltaic power system. The simulation model of photovoltaic power system is built to set the model parameters. The system stability node is obtained by using the principle of power flow calculation. The load stability analysis of the system is realized by controlling the output impedance of boost converter. In order to verify the effectiveness of the proposed method, a comparative experiment was designed. The results show that this method can control the operation state of Kazakhstan photovoltaic power system, and has a good effect on the load stability analysis of the system.
Dynamic characteristics analysis of time-delay fractional order dynamic system
Authors: Dong Jun , Xiao Yao , Ma Hu , Zhang Guangjun 
Published: October 2020

Abstract
In this paper, a kind of time-delay fractional order dynamic system is studied. The classical integral sliding mode control method is used to design a single controller to control the time-delay fractional order Liu system from chaos to fixed point, and the single controller is further designed to control the time-delay fractional order Liu system from chaotic attractor to limit loop, so the chaos control of time-delay fractional order nonlinear dynamic system is achieved. On that basis, the dynamic characteristics of the time-varying delayed fractional-order Lorenz system are analyzed by the simulation, and the chaotic phenomena of the time-varying delayed fractional-order Lorenz system are verified under the provided time delay and order.
Production and logistics optimization of packing workshop in sugar enterprises
Authors: Xu Tianxing 
Published: October 2020

Abstract
In the increasingly fierce market competition, sugar enterprises often face the problems of insufficient production capacity and low logistics efficiency. Based on the balance theory of production line, this paper studies the packaging production in the packaging workshop of sugar enterprises, determines the bottle-neck of production in the packaging workshop, and puts forward the corresponding optimization scheme to improve the production process and increase the production efficiency, reduce the probability of material accumulation in production line, so as to improve the production level and logistics level of enterprises, so that enterprises get better production efficiency.
H∞ Control Design of Power System Based on Generalized Model
Authors: Zhao Lina , Qiu Zhanzhi , Xu Zhichao 
Published: October 2020

Abstract
The generalized model power system is a complex interconnected system with complex structure and many external disturbance factors, which makes the stability of the system difficult to control. In order to guarantee the stability of the generalized model power system under the condition of external disturbance, more and more effective stability controller design methods are sought. Based on ricarty method and LMI method, the design conditions of H ∞ controller for the generalized power system composed of N subsystems are studied. At the same time, it also provides an effective way and method for analyzing the stability of similar systems.
Accuracy of range estimation of pure electric vehicles under compound conditions comparative analysis
Authors: Dai Tianlu , Zhang Zipeng , Wang Feifei , Sun Long , Wang Rui 
Published: October 2020

Abstract
In high and low temperature environments, especially in high-speed scenarios, the estimation accuracy of the range of electric vehicles is a pain point which is more concerned by consumers. Based on the China light-duty vehicle test cycle for passenger car, this paper deeply studies the estimation accuracy of the range of electric vehicles under different ambient temperature conditions. Further, a complex test cycle including long-distance in high-speed driving conditions is constructed, and the influence rule of the complex test cycle and high-speed vehicle speed on the estimation accuracy of cruising range is compared and analyzed through actual vehicle tests.
The Design of Correlation-aware Service Composition System
Authors: Guo Hua , Shu Min 
Published: October 2020

Abstract
A correlation-aware service composition system is designed in this paper. The involving key modules in this system are introduced including service description, service request submission, service composition construction, service composition instantiation, service composition optimization, and service correlation extraction. The feasibility of the system is verified and analyzed based on the example of “online purchasing automobiles parts”.
A flour impurity detection system based on image processing
Authors: Zhao Jimin , Xue Chenchen , Xue Chenchen 
Published: October 2020

Abstract
Flour plays an important role in People’s Daily consumption, and the content of impurities in flour indicates the quality of flour. At present, most domestic factories are using magnifying glass and other simple tools for impurity detection. This method is troublesome and does not meet the requirement of precision. This paper designs an automatic impurity detection system based on image processing, which not only improves the detection efficiency, but also greatly improves the detection accuracy. The basic process of this system is to grayscale the image obtained by photographing, then carry out local entropy transformation, and then map to form entropy image. Finally, the impurity detection is completed after image filtering, image segmentation and edge detection.
Strength Analysis of Torsion Beam of a MPV vehicle Based on ADAMS
Authors: Ren Nver , Meng Qingting , Mei Junyu 
Published: October 2020

Abstract
This paper is based on HyperMesh and MotionView to establish a flexible body file of the rear torsion beam of a MPV vehicle, and then according to the vehicle parameters, bushing, shock absorber and spring and other parts properties and hard point information, the flexible file of torsion beam is input into ADAMS to establish the vehicle dynamic suspension model after rigid and flexible coupling; according to the load transfer, the ADAMS software is used to calculate the force at each connecting point of torsion beam under different working conditions, and the force at each point is added to the finite element model of torsion beam to analyze the stress distribution of torsion beam under each working condition. According to the post-processing cloud diagram, the risk points of torsion beam under various working conditions are found, which provides the direction and train of thought for the structural optimization of torsion beam in the later stage.
Clothing image classification based on random erasing and residual network
Authors: Gao Zongyan , Han Lixin 
Published: October 2020

Abstract
The traditional clothing classification method mainly consists of manually extracting obvious features such as color, texture and edge of the image. These artificial feature extraction methods are cumbersome and feature recognition rate is not high. In recent years, Deep Residual Network (ResNet) has been widely used in various fields by increasing network depth to obtain higher recognition accuracy. In this paper, the ResNet model is applied to the classification of clothing images, and on this basis, its data pooling layer is improved so that it can learn more rich features of image data. Clothing images are easy to be deformed and occluded. In this paper, a random erasing data enhancement algorithm is used to integrate and improve the model to improve the generalization ability of the ResNet model to such data. The final experimental results show that the classification accuracy of the improved residual model on clothing data in this paper is improved by 2.43%. At the same time, after integrating the random erasure data enhancement algorithm, the generalization ability of the model has been further improved.
Polygonal inclusions with nonuniform eigenstrains in an isotropic half plane
Authors: Yonggang Lee , Bin Xu , Wennan Zou 
Published: October 2020

AbstractPolygonal inclusion problem in an isotropic half plane is investigated in this paper. The eigenstrains prescribed in the inclusion are assumed to be characterized by polynomials of arbitrary order in the Cartesian coordinate system. Based on a novel superposition method, the solution of the inclusion problem in a half plane is decomposed into two subproblems: the inclusion problem in a full plane and the auxiliary boundary problem in the half plane. Furthermore, the Kolosov-Muskhelishvili (K-M) potentials for the full plane and the auxiliary potentials for the half plane along with their derivatives are expressed into two sets of basic functions, which involve the boundary integrals of the inclusion domain. For polygonal inclusions, exact explicit expressions for both basic functions are explicitly derived, which leads to those for the induced displacement, strain and stress fields.
Numerical research of the effects of fouling on the performance of marine propellers
Authors: Zhang Tao , Yu Sheng-Xue 
Published: October 2020

Abstract
As it is known, propeller has been most widely-used ship thruster, propeller blade surfaces are of polished metal and have no antifouling provision, which makes them vulnerable to fouling. Under the effects of fouling, the propulsion efficiency of propellers decreases and fuel consumption of ships increases, thus greenhouse gas emissions increase, although the effects are rarely studied. The present work aims at quantifying the effects and providing a deep insight into the physical mechanism by means of Computational Fluid Dynamics (CFD) and the surface panel method. The simulation employs the SST k-ω turbulence model and is carried on NSRDC-NACA-66-mod blade section which is widely applied to marine propeller. Barnacles are selected as the study subject from the fouling community and are directly modeled at geometry level. With Propeller 4383 being studied, the induced velocity field under several advance coefficients through the surface panel method, hence the incoming velocity and effective attack angle of the blade sections at each radius are obtained. Then the lift and drag force of each blade section under fouling conditions are got through the CFD numerical method, and then the propeller open water performance parameters under fouling conditions are obtained through blade elements theory, such as the thrust coefficient TK, torque coefficient QK and open water efficiency η0. The results shows that the fouling has a serious adverse effect on the propeller performance parameters, and the serious calcareous fouling leads TK goes down by 36.1%, QK increases by 25.7% and η0 reduces by 49.2%.
Generation of high-energy-density collimated electron-positron beam by a linear polarized laser-plasma interaction from a cone
Authors: Shan Fei , Ma Yanyun , Yang Xiaohu , Zhang Guobo , Tian Lichao , Jiang Jing , Li Xiaoxiao , Ma Long , Yuan Yun , Han Peng , Cui Ye 
Published: October 2020

Abstract
Electron-positron plasma has attracted much attention recently due to their unique properties. In this paper, we study the acceleration of electron-positron plasma in a cone by using PIC method. The electrons and positrons will be scattered by transverse ponderomotive force during the interaction between laser and electron-positron plasma. A new scheme is proposed to obtain high-energy dense collimated electron-positron plasma by a hollow gold cone. Transverse scattered electrons and positrons are pinched in the gold cone. Both electrons and positrons can be accelerated by ponderomotive force continuously and a dense collimated electron-positron plasma is produced. The energy of electrons and positrons obtained in the cone is much higher than the upper limit of electron energy obtained by ponderomotive force acceleration. The high quality electron and positron beam has great potential value in further research.
Research on Physical Fitness Test Data Mining and Analysis Based on Apriori Algorithm
Authors: Shi Chengxiang , Liu Lei 
Published: October 2020

Abstract
Based on the analysis of the characteristics of Apriori algorithm, this paper uses the iterative method of layer by layer search to find out the relationship of item sets in the students’ body measurement database to form the mining model of association rules. The model maximizes the generation of candidate sets, reduces the size of frequent sets, and achieves good performance. At the same time, the average GM (1,1) model is constructed by the accumulation of the original sequence and the least square estimation of the parameters, as well as the whitening differential equation form, to predict the trend of College Students’ physique change in the future, and the research shows that the error of the model is small and the precision is high.
Soil organic carbon fractions in oil palm management systems
Authors: Handayani IP , Widiastuti H , Coyne MS , Widawati S 
Published: October 2020

AbstractConversion of deforested areas into oil palm plantation has been suggested as a means to improve soil quality and carbon sequestration capacity in forest margin areas. Soil organic carbon fractions, such as particulate organic carbon is the most sensitive indicator in improving soil organic matter and soil quality. We determined particulate organic matter - carbon (POM-C) and mineral associated carbon (MAC) in Bengkulu and West Java Provinces Indonesia. The study areas were grain crop fields, secondary forest, 5 yr-oil palm plantation, 10 yr-oil palm plantation, 15 yr-oil palm plantation and 25 yr-oil palm plantation. Soil organic carbon fraction magnitudes varied in the surface of 0 to 30 cm of grain crop fields, secondary forest and oil palm plantations. Twenty five year-oil palm plantation provided the largest total organic carbon, while 5 yr-oil palm plantation and grain crop fields contained similar amount of total organic C. Both POM-C and MAC fractions were increased in the plantation sites with oil palm trees and secondary forest compared to the grain crop fields. The plantation sites had a larger POM-C content than grain crop fields, but the increase of POM-C was limited to the surface of 0 to 10 cm of soil. Carbon stock in 0-30 cm under oil palm plantations were reduced up to 20% compared to secondary forests and 28% compared to rubber plantations in Bengkulu and West Java Provinces. On average, converting forest to plantations led to a loss of 10 Mg C/ha after about 10 years of conversion. However, the C stock in the subsoil was similar under the forest and the plantations in Bengkulu. Further, limited C input from litter would eventually cause more losses of SOC in oil palm plantations compared to rubber plantations. In conclusion, investigating the deeper profiles and soil erosion may be an important tool to unfold the trends of soil organic carbon fraction dynamics and magnitudes after the conversion of natural ecosystems to intensive plantations.
Organic carbon sequestration at gambier (Uncaria gambier L.) cultivation in sloping area under wet tropical region
Authors: Yulnafatmawita  , Maira L. , Dennico H.N.P. , Haris ZA 
Published: October 2020

AbstractOrganic carbon (OC) is an important factor for soil and the environment. This research aimed to identify OC sequestration under different age of gambier crops in central Gambier, Pesisir Selatan, West Sumatra. Soil samples were taken from different crop ages ( 2, 5, and 10 years old), and then under secondary forest nearby as a comparison at 0-30 cm soil depth. The results showed that, in general, soil OC content was considered low to very low either under Gambier crops (<2%), or under forest land use (2.11%). Then, the OC stock increased by increasing crop age from 2 to 10 years old. The OC stock at ten years old Gambier reached 90% of that at the forest on the top 30 cm soil depths. Rate of OC sequestration was approximately 1.03 Mg ha-1y-1and 4.88 Mg ha-1y-1, respectively, for crop age between 2 and 5 as well as between 5 and10 years old. This low soil organic carbon (SOC) content combined with fine soil particles caused the soil had medium-high soil BD, low-medium total soil porosity, rather slow-medium hydraulic conductivity rate, and unstable-rather stable soil aggregate stability. The study concludes that SOC sequestration under Gambier plantation in the sloping area was quite slow, especially during the first five years due to new crop establishment and the leaves harvested.