必威(betway·官方网站)西汉姆联-EURO CUP

Online System

Reviewer Login

Editor Login

Author Login

Download

Statement of Competing Interests

Authors Contribution Form

Online Journal

Advanced search

Special subject

Current Issue

Previous Issue

Introduction

Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N

Links

Shanxi Provincial Education Department

Taiyuan University of Technology

location： home> 2022,53(05)

Microstructure Evolution and Control of Mechanical Properties of AlCoCrFeNi2.1 Eutectic High-entropy Alloys Prepared

AlCoCrFeNi2.1 eutectic high-entropy alloys (EHEAs) were prepared by spark plasma sintering(SPS) technology at different sintering temperatures (900,1000,1100,1200℃) ata constant pressure of 40 MPa. The effects of temperatrue on thedensification behavior, phase composition, macroscopic morphology andmicrostructure, and mechanical properties at different sections of EHEAs werestudied. As the sintering temperature increases, the pore defects of thealloy gradually disappear, and the highest density ...

Taiyuan University of technology 2022,53(05): LAN Liwei, CUI Zeqin, WANG Wenxian, HAO Xiaohu. ;

PDFviewed：abstract

Research on the Correlation of Arc Physical Phenomenon-Weld Morphology and Microstructure-Mechanical Properties of MIG Welded 304 Stainless Steel

The arc stability and droplet transfer phenomenon inwelding process were analyzed with the help of a high-speed camera system,and the correlation mechanism was explored of arc voltage-arc physicalphenomenon-weld morphology and microstructure-mechanical properties of jointsin MIG welding of 4 mm-thick 304 stainless steel. The results show that whenthe voltage is 20.6 V, the welding arc heat distribution is uniform, and thedroplet transfer form is a stable and continuous short-circuit transfer. The...

Taiyuan University of technology 2022,53(05): SONG Wenxin, ZHANG Hongxia, YAN Zhifeng, WANG Yong, ZHAO Weiye. ;

PDFviewed：abstract

Microstructure and Properties of β-TCP Reinforced Zn-Mg Matrix Composites

Pure zinc has goodbiocompatibility and moderate degradation rate, but its mechanical propertiesare not ideal, which limits its biomedical applications. In view of the poormechanical properties of zinc and its alloys, high-energy ball milling andspark plasma sintering techniques were used to prepare the alloy withcore-shell structure Zn-10Mg-xβ-TCP (x=0,1,3,5) composites, β-TCP wasselected as the reinforcing phase to improve the mechanical and corrosionproperties of pure zinc. The microstructure...

Taiyuan University of technology 2022,53(05): HU Yongjin, WANG Wenxian, CUI Zeqin. ;

PDFviewed：abstract

Influence of Wall Thickness of Ring Blank on Crack of High Temperature Casting Based on Casting-rolling Continuous Forming Process

In the short process ofcasting-rolling continuous forming of ring blank, cracks are likely to occuron the surface and corners of casting ring blank at high temperature. Theeffect of the wall thickness of 42CrMo centrifugal casting ring blank oncrack formation was discussed by Procast simulation, and some effectivemeasures to control crack were put forward. The simulation results show thatthe main causes of crack formation are large thermal stress and strain, dueto the uneven distribution of high ...

Taiyuan University of technology 2022,53(05): WU Yonghong, QI Huiping, LI Yongtang, CHANG Yaodong. ;

PDFviewed：abstract

Influence of Wall Thickness of Ring Blank on Crack of High Temperature Casting Based on Casting-rolling Continuous Forming Process

The effects of four aliphatichydrocarbon extractants (n-hexane, cyclohexane, petroleum ether, andn-heptane) on the extraction rate and properties of extracts from coalliquefaction residue were investigated by Soxhlet extraction experiments. Theresults show that the molecular structure, viscosity, and boiling point ofextractants affected extraction rate, and the extraction rates of fourextractants were in the following order: cyclohexane, petroleum ether,n-hexane, n-heptane. As for the composition...

Taiyuan University of technology 2022,53(05): LIU Yang, HUANG Jianbo, YAN Lunjing, LIAO Junjie, BAO Weiren, WANG Jiancheng, CHANG Liping. ;

PDFviewed：abstract

Effects of AM Fungi Inoculation in Open Dump on the Growth of Different Combinations of Plants and Soil Improvement

By taking the dump site of NortelShengli open-pit mine as the research area, 5 different planting modes ofCaragana korshinskii monocropping, Caragana korshinskii and Astragalusadsurgens mixed cropping, Astragalus adsurgens monocropping, Astragalusadsurgens and alfalfa (Medicago sativa) mixed cropping, and alfalfamonocropping were set up. With inoculation (Funneliformis mosseae) andcontrol as two treatments, classical statistics was used to analyze plantroot morphology, soil physicochemical proper...

Taiyuan University of technology 2022,53(05): HU Qincheng, XIE Linlin, LI Mengqi, BI Yinli. ;

PDFviewed：abstract

Influence of Wall Thickness of Ring Blank on Crack of High Temperature Casting Based on Casting-rolling Continuous Forming Process

The hydration and dispersion ofclay in coal determine the sedimentation performance of coal slurry. In thispaper, calcium ions were added three times at the initial, mid-stage, andcompletion points of the hydration and dispersion of montmorillonite fromcoal bed, to make three dispersion systems. Some parameters of the threesystems including particle size distribution, Zeta potential distribution, systemviscosity changes, surface hydration index, and morphological characteristicswere analyzed. The...

Taiyuan University of technology 2022,53(05): ZHANG Mingqing, SONG Shuoshuo, JING Hongtao. ;

PDFviewed：abstract

Effect of Laser Texturing on Mechanical Stability of Fractal Structure on 65Mn Superhydrophobic Surface

On the basis of the fractaltheory, the fractal structure characteristics and mechanical stability of65Mn superhydrophobic surface after laser texturing were studied. 65Mn wasused as the base material, and a superhydrophobic surface withmicro/nanocomposite structure was constructed by laser texturing and stearicacid modification. An orthogonal experiment was designed by selectingprocessing spacing, scanning speed, and repeated scanning time. The roughnessand irregularity of different areas of samp...

Taiyuan University of technology 2022,53(05): QIAO Yitao, ZHANG Dongguang, ZHANG Zhihong. ;

PDFviewed：abstract

Effect of Annealing Time on the Microstructure and Mechanical Properties of Mg/Al Laminated Composite Prepared by Cross-Corrugated Rolling

Mg/Al laminated composite wasprepared by hot rolling with the self-developed cross-corrugated roll. Thetensile strength in TD and RD were tested, and the effects of annealing timeon microstructure and mechanical properties were studied. The resultsindicate that inter-metallic compounds (IMCs) are generated at bondinginterface under the condition that the total reduction ratio is 37.5%, annealingtemperature is 250 ℃, while the annealing time is 2 h and 4 h, respectively.There is Mg2Al3 phase near...

Taiyuan University of technology 2022,53(05): ZHAO Xuexia, WANG Liang, FENG Guang, ZHAO Jingwei. ;

PDFviewed：abstract

Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures

On the basis ofmetal crystal structures, the theoretical models of effective elastic Young’smodulus of body centered cubic (BCC) and face-centered cubic (FCC) latticematerials were established by using Timoshenko beam model, and theflexibility matrix of lattice materials was determined. The effect of nodaland shear on the Young’s modulus of lattice materialswas analyzed. The results show that the theoretical model is in goodagreement with the finite element numerical simulation. Moreover, the l...

Taiyuan University of technology 2022,53(05): GUO Lu, WU Guiying, WANG Zhihua. ;

PDFviewed：abstract

Peridynamic Simulation of Dynamic Responses of Laminated Glass under Explosion Loading

In order to studythe spontaneous dynamic fracture behavior of transparent laminated glassunder explosion loading, peridynamics(PD) was introduced to simulate thedynamic responses of crack initiation, propagation, bifurcation, coalescence,and arrest. The 3D discontinuous Galerkin algorithm was used for glass parts,and the finite element algorithm was used for adhesive layer PVB part andframe part. The contact algorithm was used to realize the coupling of the twoparts. Finally, the crack propagatio...

Taiyuan University of technology 2022,53(05): WANG Mufei, LI Zhiqiang, ZHANG Yingjie. ;

PDFviewed：abstract

Design and Simulation of Intelligent Vehicle Trajectory Tracking Control Algorithm Based on LQR and PID

In order to improvethe accuracy and robustness of intelligent vehicle trajectory tracking, alongitudinal and lateral control strategy based on linear quadratic regulator(LQR) and proportional-integral-derivative (PID) algorithm was proposed.First, the two-degree-of-freedom vehicle kinematics model and trajectorytracking error model are established. Second, the trajectory trackingcontroller of lateral LQR control algorithm and the speed tracking controllerof longitudinal double PID control algorit...

Taiyuan University of technology 2022,53(05): XU Mingze, LIU Qinghe. ;

PDFviewed：abstract

Design and Simulation of Intelligent Vehicle Trajectory Tracking Control Algorithm Based on LQR and PID

Taiyuan University of technology 2022,53(05): XU Mingze, LIU Qinghe. ;

PDFviewed：abstract

A Multiscale Segmentation Method of Strip Steel Surface Defect Images Using Boundary Awareness and Deep Learning on Small Datasets

Fullyconvolutional networks for semantic segmentation provide pixel-leveldetection of strip steel surface defects, which plays a crucial role inproduct quality control of strip steel. However, most of these models sufferfrom the loss of boundary information, and their performance is often heavilydependent on a large number of labeled samples, which limits the applicationof the approach. Thereby, a multiscale and boundary-aware network forsegmentation of strip steel surface defects on small datase...

Taiyuan University of technology 2022,53(05): GUO Xuejun, PENG Zan. ;

PDFviewed：abstract

D-S Evidence Theory and Application of Fusion Support and Uncertainty

Tosolve the problem that Dempster-Shafer (D-S) evidence theory gives combinesresults contrary to with facts when dealing with conflict evidence, a novel methodof conflict evidence combination was proposed. First, the Spearmancorrelation coefficient is improved and the support between evidences iscalculated, and original evidence is amended for the first time. Then,combined with the advantages of the interval distance based on fixedintegrals, the uncertainty of evidence is analyzed, a new discount...

Taiyuan University of technology 2022,53(05): REN Huijuan, HUANG Lixia, ZHANG Xueying, LI Fenglian, DU Haiwen, YU Lijun. ;

PDFviewed：abstract

Modeling the Spread of Network Viruses Based on Dynamic Quarantine

Aiming at the factthat the impact of quarantine on network virus propagation has not beenconsidered in existing dynamical models, a network virus paopagation modelwith dynamical quarantine was proposed on the basis of the simple epidemic SImodel. The basic idea of the model is that the suspicious node isquaranteened immediately as soon as the network intrusion detection systemfinds the suspicious behavior of node. Then, the isolated node is releasedafter a short of period. Furthermore, by using s...

Taiyuan University of technology 2022,53(05): HAN Ruifeng, FENG Liping, WANG Hongbin, ZHU Qingyi. ;

PDFviewed：abstract

Color Discrimination Ability of Normal Observers under Standard Illuminants with Different Correlated Color Temperatures

The effect ofilluminants with different correlated color temperatures on colordiscrimination ability was investigated by asking 20 color normal observersto perform FM-100 test under D65, TL84, and F illuminants. The experimentalresults show that the TESs (Total Error Scores) under D65 and TL84 were notsignificantly different between them, but they were significantly lower thanthe TES under F illuminant; for F illuminant, the PES (Partial Error Score)along blue-yellow axis was much higher than tha...

Taiyuan University of technology 2022,53(05): MA Ruiqing, GAO Qiang, LI Xuetian. ;

PDFviewed：abstract

Research on Leak Detection Algorithms Based on CNN-LSTM Neural Networks

In the applicationof long-distance transmission pipeline, the explicit mathematical modelmethod may not completely obtain all accurate values since the parametersalong the line cannot be measured point by point. A practical method based onCNN-LSTM neural network was proposed. This method uses CNN network to findspatial features and uses LSTM to explore temporal features. The real datacollected from operating pipeline are used to train and verify the deeplearning model, and then use the model to p...

Taiyuan University of technology 2022,53(05): HAN Jiahao, CHEN Xiaohua, JIANG Haibin, LI Lin, LI Zhen, ZHANG Hao, ZHAO Juanjuan. ;

PDFviewed：abstract

A Mortality Prediction Model for Heart Failure Patients Based on Mixed Weighted Distance KNN

Using K-nearestneighbor (KNN) to predict mortality is an important mean to positively affectpatient health. However, it is difficult for KNN to use a single distance toaccurately measure the distance of samples with discrete and continuousvariables. Furthermore, the voting method applied in KNN cannot measure theimpact of distance on results. To solve above problems, a KNN mortalityprediction model with mixed weighted distance was proposed. First, thechi-square test and logistic regression with L...

Taiyuan University of technology 2022,53(05): FU Jian, LI Dengao, ZHAO Jumin. ;

PDFviewed：abstract

Analysis and Homology Research of Connected Macaque’s Brain PE Segmentation

To segment PE in macaquesbased on the anatomical connections of white matter fiber tracts, two PEsubregions were defined, one anterior and the other dorsal, by probabilisticfiber tracing. At the same time, a connectivity fingerprint map was drawnwith 19 predefined homologous target brain regions for PE and PE subregions.It was verified that PE and PE subregions are similar to human 51 inconnection pattern, and inferred that the PE anterior subregion is homologousto the 51. The segmentation result...

Taiyuan University of technology 2022,53(05): WANG Yue, WANG Qianshan, YAO Rong, LI Binqiang, CHAI Jingwen, LI Haifang. ;

PDFviewed：abstract