bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research Of EMC Immunity In Mine Switches*
Authors: Hao Zhang Jin , Min Chen 
Published: February 2021

Abstract
According to serious environment in the coal mine, the safety monitoring system of communication equipment (KJJ137 Switch Of Intrinsically safe flame-proof in mine) susceptible to surge, the group of pulse, and the problem of various kinds of electromagnetic interference on the switches EMC research. The study mainly from the power supply isolation and anti-interference, output signal safety barrier, the whole machine technology research aspects such as antistatic treatment. Experiments show that KJJ137 switches through the power surge immunity experiment, the output signal of pulse noise immunity, electrostatic immunity experiment machine. Various EMC experiment achieves level 4 standard, beyond the coal mine safety regulations require all kinds of interference rejection level 3 standards, make KJJ137 Switch Of Intrinsically safe flame-proof in mine, suitable for all kinds of bad environment of coal mine, ensures the mine safety monitoring system is right.
A review of MOFs and its derivatives for lithium ion battery anodes
Authors: Chen Weichen , Liu Sen , Shen Jialin 
Published: February 2021

Abstract
With the development of electric vehicles and clean energy, the demand for lithium-ion batteries (LIBs) has increased significantly in recent decades. As traditional anode materials can only basically meet the requirements of current consumer electronics products, metal-organic framework (MOFs) material and its derivatives attract great attention to become a potential substitute with advanced performance. Pristine MOFs material has greater development potential in terms of high energy density anode. MOFs-derived materials, including porous carbon material, metal oxide and composite material, could exhibit improved electrochemical behaviours and better stability. This article introduces the pristine MOFs and MOFs-derived materials as an anode in lithium-ion batteries, as well as their modification methods that have been widely studied at the current stage. In the end, we discussed the future development trends of various MOFs materials.
Application Analysis of Low Density Parity Check Code for Wireless Network
Authors: Fang Peixiao 
Published: February 2021

Abstract
The Low Density Parity Check (LDPC) codes use an iterative decoding algorithm. The advantages of this algorithm are: the algorithm is completely parallel, so the decoding speed is extremely high; the complexity of the decoding algorithm is low, and the amount of calculation will not increase sharply due to the increase of the code length. It is incomparable with convolutional code and other group codes. A good compromise can be obtained in complexity and performance. Even for the same decoding algorithm, different iteration times can be selected according to channel conditions and system requirements, which is very flexible. In this paper, we review the construction and decoding of LDPC, analyze their advantages and provide their direction of future works.
Application of An Improved Artificial Bee Colony Algorithm
Authors: Zhang Pinghua , Liu Yun 
Published: February 2021

Abstract
An improved artificial bee colony algorithm which overcome the shortcomings, including slow convergence speed, easily falling into local optimum value, Mechanism of other bionic intelligent optimization algorithms is put forward. The algorithm with number theory of uniform distribution of good point set, first established algorithm initialization model, in order to maintain the diversity of the population; Then, the location is updated iteratively to maintain the diversity of the population and prevent the algorithm from falling into the local optimum. Finally, the seven standard test functions are selected to carry out the experiment and simulation. The results show that compared with the ABC algorithm, GABC algorithm and so on. The algorithm (GCABC) the convergence speed and accuracy have been improved significantly, and to improve the overall searching ability, effectively avoid the population into a local optimum, to solve the problem of multi-modal optimization.
Smart Grid Planning Analysis Considering Multiple Renewable Energy Resources and Energy Storage Systems of User Side
Authors: Wang Ya-lei , Sang Zi-xia , Huang Jia-qi , Yan Jiong , Wang Si-cong , He Ji-feng , Yang Dong-jun , Du Zhi 
Published: February 2021

Abstract
The integration of renewable energy resources and storage systems makes power delivery route reconstruction after the N-1 fault taking place more complicated. To solve the calculation problem of smart grid power transfer capability, the time-varying characteristics of renewable energy resources and storage systems were analyzed. Based on this, an N-1 recovery model was proposed on the base of the transfer capability index. Through making the calculation formula of the transfer capability index linear and adopting the artificial intelligence (AI) optimal algorithm based on topology simplification, the operation modes of the power grid, new energy generations and new energy storage systems can be optimized and the maximum power transfer capability of the grid can be achieved.
Differential Clustering Analysis of Power Grid Green Development Based on Hierarchical Cluster Method
Authors: Li Zhuonan , Jin Yanming , Zhao Jiujin , Tan Xue , Zhang Dongliang , Wei Jia 
Published: February 2021

Abstract
Under the call of ecological civilization construction, the internal provincial evaluation of power companies has also been gradually advanced. Taking into account the vast territory of my country, the large-scale power system, and the complex structure, power grids at all levels have differences in areas such as jurisdiction area, climatic conditions, power grid scale, and technical level. Under this premise, if a reasonable index system and evaluation method are not formulated, and a unified evaluation index system is adopted for each region, it may not be possible to achieve a relatively fair evaluation of the regional power grid. Under this condition, it is difficult to exert the guidance of the evaluation method on the green development of the power grid. In this paper, taking into account the differences that exist between all levels of power grids in our country, the hierarchical cluster method is used to cluster them.
Design and research of hydraulic screed test bench
Authors: Wang Zhe , Jing Xiajie , Xing Keli 
Published: February 2021

Abstract
In order to meet the requirements of the performance test of the screed, a hydraulic test bench for screed is designed, which realizes the action of the screed. On this basis, the test bench measurement and control software based on LabVIEW is developed, it completes the tests and data analysis of screed. The test results show that the system has perfect functions and meets the requirements of screed test.
Research on the restoring force model of an assembled beam-column joint with ring-grooved rivets
Authors: Wei Zhai , Wen Jiang , Guangbin Xu , Junfen Yang , Kai Qu , Wenzhe Zhang 
Published: February 2021

Abstract
To establish the restoring force model of a kind of prefabricated beam-column joints with ring-grooved bolts, the dimensionless skeleton curves and the stiffness degradation law of the joint are obtained by the regression analysis. Therein, the skeleton curves are a trilinear model divided into elastic, reinforcing and degradation stages. The calculated skeleton curves and restoring force model are in good agreement with the experimental skeleton and hysteretic curves. The result shows the restoring model can express the stiffness degradation characteristics of the joint well, as well as provide a theoretical basis for the nonlinear dynamic analysis of structures.
Finite element analysis of typical fastener type full hall steel tubular scaffolds
Authors: Chen Fan , Wan Wendong , Fan Yibo , Qi Xiaohai 
Published: February 2021

Abstract
Based on fastener type full steel tubular scaffolds of power transmission and transformation project, this paper discusses in detail the establishment process of three-dimensional finite element model, including steel pipes, semi-rigid connections, mass of fasteners and boundary conditions. The stability of scaffold is analyzed and the failure mode of instability and ultimate bearing capacity are calculated. Then the static analysis is carried out to analyze the displacement and axial force response of the scaffold during construction, and finally the measures to strengthen the stability and safety of the scaffolds are given.
Research on Statistics of Passenger Transfer Flow at Urban Rail Transit Station
Authors: Zhu Kunkun , Li Qiangqiang 
Published: February 2021

Abstract
With the continuous advancement of urbanization, the urban rail transit network continues to be dense, and the number of transfer stations increases, resulting in an increase in the flow of interchange passengers. This paper introduces pedestrian detection into the statistics to realize real-time statistics of passenger transfer flow. This article first determines the research scenario and simplifies the transfer path. Then, the pedestrian detection model is constructed by using the histogram of gradient directions (HOG) and support vector machine (SVM), and combined with the continuous adaptive mean shift algorithm (CamShift) to design and realize the transfer path passenger flow statistics. Finally, the algorithm was trained and tested through the samples obtained at Xi’an Xiaozhai subway station, and the test results obtained have high accuracy.
Analysis of the impact of large-diameter shield construction adjacent to the side of the pile foundation
Authors: Ma Wenbin , Liu Junyan , Zhang Liangliang 
Published: February 2021

Abstract
In the process of urban subway construction, tunnel construction will inevitably cross the bridge pile foundation and disturb the existing bridge structure. In view of the unstable impact of tunnel construction on the bridge, this paper relies on a tunnel project in Guangzhou and uses MADIS GTS/NX three-dimensional finite element analysis software to reinforce and protect the presence or absence of isolated piles, and simulate the side of the shield tunnel through pile foundation construction according to different working conditions, and analyze the impact of construction on bridge and stratum deformation. The results show that the use of the isolation pile reinforcement protection plan with φ0.8m@1m and the pile length 50m effectively controls the displacement of the ground and the bridge, and also verifies the effectiveness of the reinforcement plan.
Research on dissipative energy of dynamic splitting tensile failure of carbon nanofibers reinforced concrete
Authors: Xia Wei , Xu Jinyu , Nie Liangxue , Wang Zhihang , Huang Zhe , Liu Gaojie 
Published: February 2021

Abstract
The dynamic splitting tensile tests of carbon nanofibers reinforced concrete (CNFC) with fiber volume content of 0%, 0.1%, 0.2%, 0.3% and 0.5% were carried out respectively by split Hopkinson pressure bar (SHPB) test device. Based on the internal relationship between the dynamic splitting tensile dissipative energy and the change rate of incident wave energy, the dissipative energy properties of CNFC were analyzed. The results show that: the total energy of incident wave, reflected wave and transmitted wave changes in a similar way with time, which is a cumulative process, with the increase of the change rate of incident wave energy, the dissipative energy of concrete also increases gradually, and the two basically show a linear growth trend; the addition of CNFs has a significant promoting effect on the dissipative energy of concrete, with the increase of the content of CNFs, the enhancement effect of CNFs on the dissipative energy shows a trend of first strengthening and then weakening, with the optimal content of 0.3%.
Economic analysis of prefabricated buildings based on value engineering analysis
Authors: Fang Jiayue , Qi Yuan 
Published: February 2021

Abstract
Combined with the value engineering theory, this paper compares the project’s value of output at different time by calculating the incremental cost and incremental benefit of the prefabricated building and the cast-in-place building. The calculations show that all aspects of prefab building are improving over time, but government subsidies have yet to have a significant effect on the overall value output.
Analysis of Stress Path in the Whole Process of Foundation Pit Excavation and Heavy Lifting
Authors: Cao Ying , Liu Yan , Du Changyan 
Published: February 2021

Abstract
Based on a foundation pit in Jinan City, this paper uses ABAQUS to conduct numerical simulations based on actual construction on site. Considering the rotation of the main stress axis, the corresponding stress path and discharge law are obtained in different affecting areas. The results show that whether inside or outside the pit, the horizontal and vertical stresses decrease with the excavation of the foundation pit, but the amount of soil unloading inside the pit is much greater than outside the pit; the passive zone

p
¯

in the pit keeps decreasing, and

q
¯

keeps increasing. The range of rotation angle of large principal stress is 0∼89.39°, the transition zone outside the pit and the active zone

p
¯

keep decreasing, while

q
¯

is almost unchanged, the change range is 0∼44.78°, and all rotate clockwise. When a crane load is applied to the side of the pit, it will have a greater impact on the soil elements in the active zone directly below the load outside the pit. The principal stress rotation angle will rotate counterclockwise, which is about 1/3 of the final deflection angle. The impact is relatively small.
Creep of CFRP confined reinforced concrete members under large eccentric compression
Authors: Cao Jian , Pan Xinpeng , Zeng Jingqi , Zeng Lingyun 
Published: February 2021

Abstract
Based on the multiaxial stress statetheory of concrete under and B3 model for calculating concrete creep, combined with the mechanical characteristics of reinforced concrete members under large eccentric compression, considering the influence of member deflection, reinforcement configuration and hoop force, the creep model of CFRP confined reinforced concrete members under long-term load is established. Compared with the experimental results, the theoretical calculation results are in good agreement with the experimental values. It has a certain guiding significance to the actual engineering structure.
Strength Model of Unsaturated Clays with Adsorptive Effects
Authors: Kong Xiaoang , Zhao Binbin , Liu Yi , Ou Wenhao , Yang Zhi 
Published: February 2021

Abstract
The interactions between liquid phase and solid matrix in unsaturated clays can be divided into capillary effects and physicochemical effects according to their formation mechanism. The physicochemical effects (that is, the adsorption effects) become significant at low saturation degrees. However, current strength models for unsaturated soils almost are established on the basis of capillary mechanism, and the contribution of adsorption effects to soil strength is neglected. A binary-medium shear strength model is firstly proposed, involving the capillary and adsorption effects. The unsaturated clay is assumed to consist of two ideal parts, i.e., the ideal capillarity part and the ideal adsorption part, and then the corresponding ideal strength formulas are established. Furthermore, a participation function is used to reflect the degrees of capillary effects and adsorption effects. Finally, predictions are performed on the shear strength of unsaturated clays. After comparing predicted results and exiting test results, it is shown that the proposed model can well describe the strength of unsaturated clays.
Analysis of the impact difference caused by the shape and the falling posture when the single coal-rock impacting the top coal caving hydraulic support tail beam
Authors: Xin Zhengyuan , Yang Yang , Xin Fengwen 
Published: February 2021

Abstract
To investigate the difference in responses of the tail beam of the top coal caving hydraulic support caused by different shapes and falling postures of coal-rock particles and study the vibrational signal changes, we conducted a dynamic analysis of single particle impact on the tail beam. First, formula of the contact force generated by the particle striking the tail beam slope was derived using Hertz theory. Then we used the finite element analysis software Abaqus to simulate the impact of different shapes of coal-rock particles on the tail beam. The results show the contact force generated by the coal-rock particles with different shapes and same mass impact the tail beam differently. The larger the radius of curvature of the particle contact point, the greater the contact force generated and the greater the vibration generated by the tail beam. Therefore, when the vibration signal of the tail beam is detected and used as the basis for judging the coal-rock particles, attention should be paid to the vibration difference because of the particle shape to prevent misjudgment.
Convolution Neural Network based Rain Noise Removal for Real Time Application
Authors: Sowjanya A. , Kumar Sandeep , Swaroop K. Sonali 
Published: February 2021

Abstract
Image quality is affected by rain streaks that have an adverse effect on the applications which involves the ideas of surveillance, automatic path navigation. Hence it is important to process the information present in the images affected by water droplets caused by the rain or the mist. So this forms the basic need to identify the problem which does not have any mathematical correlation about the same. This research tries to work on the methodology which will denoise the criteria based on Convolutional neural network (CNN). CNN modelling helps in finding out the connections between the noise input image and rain streak. The proposed method uses synthetic database available publicly.
RETRACTED: Artery-Vein Detection using Neural Network in Retina Images
Authors: Swaroop K. Sonali , Kumar Sandeep , Sowjanya A. 
Published: February 2021

Abstract
Retinal veins segmentation play a vital role in the life because of entire world moves toward the digital words. The paper presents an approach to identify the blood vessels from the optically affected areas of an eye. This method is proposed as the manual extraction of vessels from the fundus image is a very tedious task also it takes higher amount of time. Therefore, the paper mainly focuses on the developing an approach for vessel extraction. The methodology reportedly excels in terms of accuracy also being simple it finds many applications in image diagnosis for predicting various pathological diseases opathalmologically. It can create a new perspective in disease detection in a more accurate way. The input images are initially preprocessed; next the features are extracted from the images. The extracted images form the training set and the testing process is performed using the proposed methodology. Finally, the proposed work achieved 96.8% accuracy on benchmark datasets.
Computational Effective Multimodal Medical Image Fusion in NSCT Domain
Authors: Sathish Kumar G.A.E. , Devanna H. 
Published: February 2021

Abstract
Multimodal Medical Image Fusion provides comprehensive data in recent medical image diagnosis applications. This paper presents a novel Multimodal Medical Image fusion framework based on the Angular Consistency (AC) and Sub Band Adaptive Filtering (SAF). In the proposed model, the Non-subsampled Contourlet Transform (NSSCT) decomposes the source image pair into high frequency (HF) and low frequency (LF) sub bands. The LF bands are integrated with Angular consistency rule that can fuse the finer details which are very much helpful in medical image diagnosis. Further the HF bands are processed through sub band adaptive filtering such that the redundant information is filtered out and only significant information is preserved. At last the fused sub bands are processed for Inverse Non-subsampled Contourlet Transform to produce a fused image. Experimental evaluation is accomplished through a real time image data set and the performance is measured through Edge Based Similarity index, Local Quality Index and Computational time. The obtained results show that the proposed system achieves a satisfactory results compared to the conventional methods.
A Novel Error Free Dimensional Projection Coding
Authors: Rafi Shaik Mohammed , Basavaraj G D , Fairooz Shaik 
Published: February 2021

Abstract
In this paper, dimensional coding of projection has been developed with the hardware design for RS algorithms. The result of simulation of Memory Interface Unit for basic and dimensional projection coding with scale and Implemented Video Interface module using VHDL and Target on to the FPGA implemented (XCV300-bg432-6). It provided operating speed of 732.5 MHz, power consumption of 1249 BEL and 128.3 mW in FPGA.
Design of Deterministic Sparse Fractal Array with Haferman Counter-Diagonal Fractal Tapering Technique for Modern Wireless Systems
Authors: Sankar Ponnapalli V. A. , Praveena A , Vinod Babu P 
Published: February 2021

Abstract
Deterministic fractal structure is a repetitive geometry based structure having applications in various regions of science and engineering. Fractal antennas and array antennas are artistic structures and they are finding much attention in recent years owing to their feasible properties. A few deterministic fractal arrays owing to the fractal dimensional design methodology are thinned arrays, but the great concern for these types of array antennas is the great number of antennas present at higher level iteration and as well as expansion levels. The present research work discusses the feasibility of reducing antenna elements at higher expansion and iteration levels of fractal arrays with a new type of tapering technique named as Haferman counter-diagonal fractal tapering. Different types of fractal arrays created using a sub array of concentric elliptical ring design methodology have been considered for the application proposed tapering technique. Owing to the proposed technique, nearly 40% to 50% of the antenna elements thinned while maintaining fully populated array factor properties. The proposed technique can simplify the design complexity of fractal arrays and reduce the designing cost.
Ontology Based Website for Job Posting and Searching
Authors: Kumar N. Anil , Ramu K 
Published: February 2021

Abstract
Searching for the jobs remains a tedious work. Whenever we search for job we getting some results which are not very relevant. So, we have to manually search through those results and find some suitable job for which we can apply. Many times, we miss out some job postings because these posting do not appear in the results. The same problem exists for recruiters also. When recruiters search for some specialization there are not getting the same results because the keywords used for searching are different from the keywords used in their resumes. So, to solve this problem we use ontology to post job and to search the jobs.