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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> 2023,54(03)

3D Printing with Chemistry and Chemical Engineering:Symbiotic Development and Risk Control

There exists a mutually beneficial relationship between flourishing 3D printing technology and traditional chemical industry. The rational and effective adoption of materials and subject knowledge in the field of chemistry and chemical engineering is conducive to the improvement of 3D printing technology. While the development of 3D printing, as an advanced technology of additive manufacturing, also helps promote the research and practice process in the field of chemistry and chemical engineering...

Taiyuan University of technology 2023,54(03): QIN Lei, LIU Weifeng, LIU Xuguang. ;

PDFviewed：abstract

Construction of Coated ZSM-5 by Dry Gel Steam-Assisted Method and Its Performance for Methanol to Aromatic Reaction

The conversion of coal-based methanol to benzene, toluene, and xylene is an important technology to promote the efficient and clean conversion of coal. However, the control of reaction process on a single catalyst is difficult and the aromatic selectivity is low. Coated ZSM-5 was prepared by steam-assisted crystallization, in which ZSM-5 with a Si/Al ratio of about 50 was mixed into dry gel with a Si/Al ratio of 220. Under the catalysis of the coated ZSM-5, the two-step reaction of methanol to ol...

Taiyuan University of technology 2023,54(03): FU Tingjun, MA Qian, HUI Yan, LI Zhong. ;

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Effect of the Extractant Properties on Extraction Performance of Coal Liquefied Oil Residue

To solve the problem of efficient extraction of coal liquefied oil residue, the extractants with different properties, such as aliphatic hydrocarbon, aromatic hydrocarbon, oxygen-containing compounds, and simulated coking benzene, were selected for the extraction of coal liquefied oil residue. And the effects of solubility and polarity parameters of extractants on extraction rate and extract components were investigated. The results show that with the increase in solubility and polarity parameter...

Taiyuan University of technology 2023,54(03): LIU Yang, HUANG Jianbo, YAN Guochun, WANG Jianli, LU Weimin, LI Yi, YAN Lunjing, LIAO Junjie, BAO Weiren, WANG Jiancheng. ;

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Study on Stability of Antimony Carbon Anode of Lithium-ion Battery under Compressive Loading

Antimony carbon composite was used as active materials in the anode to assemble button lithium-ion batteries (LIBs), and quasi-static plate and contact (steel balls) extrusion loading experiments were carried out. The cycling stability, crack morphology of electrode, and failure of LIBs were investigated. The results indicate the quasi-static plate and contact (steel balls) extrusion load cause the decrease of reversible capacity, and the reversible capacity loss is positively correlated with qua...

Taiyuan University of technology 2023,54(03): SUN Weiyan, MENG Weijia, ZHAO Songnan, GUO Chunli, GUO Meiqing. ;

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Effect of Rare Earth Metals Added to Wire on Droplet Transfer Mode in GMAW with Pure CO2 Shielding Gas

The effect of rare earth metals added to wire on droplet transfer mode in GMAW with pure CO2 shielding gas was reviewed.The results show that when the welding wire containing rare earth metals is welded with DCEN pure CO2 shielding gas, owing to the expansion of the cathode spot area in the arc (the arc above the droplet presents a conical shape), the refined droplets form an axial spray transfer mode, the spatter generation is very small, and the usability is excellent.The rare earth metals redu...

Taiyuan University of technology 2023,54(03): SUN Xian. ;

PDFviewed：abstract

Research on Segment Coal Pillar Width Based on Rock Burst Prevention in Shaanxi-Inner Mongolia Deep Mines

On the basis of the first gob-side working face mining under the condition of rapid excavation of double roadways in Nariin Gol No.2 coal mine of Shaanxi-Inner Mongolia deep mining areas, the stress distribution law of segment coal pillars with different widths was explored through theoretical analysis, numerical simulation, and field monitoring, then the rock burst mechanism induced by the stress superposition of wide segment coal pillar was revealed, and finally the design method of narrow segm...

Taiyuan University of technology 2023,54(03): WANG Bo,FENG Guorui, JIANG Fuxing. ;

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Research on Segment Coal Pillar Width Based on Rock Burst Prevention in Shaanxi-Inner Mongolia Deep Mines

According to the characteristics of acid mine drainage in the Shandi River Basin of Yangquan City, acid mine drainage with low pH value and high Fe2+ and Mn2+ concentration was prepared. Carbon steel slag was used to treat it, so as to investigate the factors influencing the removal rate and discuss the removal mechanism. The results show that the removal rate of Fe2+ by steel slag is as high as 98.72%, and the removal rate of Mn2+ is only 39.79%. After the treatment of acid mine drainage, Fe(OH)...

Taiyuan University of technology 2023,54(03): CHE Zhiyuan, LIU Hu, ZHOU Linkang, YAN Hong, JIN Hua. ;

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Study on the Effect of Calcareous Mudstone Dust on Ventilation Gas in Boiler Mixed Combustion

In order to reduce the impact of ventilation air methane (VAM) emission on the greenhouse effect, we investigated the oxidation pattern of VAM with a concentration of 0.75% and its mixing method with lignite and anthracite, and the effect of the calcareous mudstone dust in VAM on the VAM in mixed firing system. Calcareous mudstone dust with different metal oxide content was mixed with different coal species and placed in this gas environment by using a tube furnace system to simulate a premixed g...

Taiyuan University of technology 2023,54(03): MA Yitong, HAO Chaoyu, HE Wenhao, DENG Cunbao. ;

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Study on the Effect of Calcareous Mudstone Dust on Ventilation Gas in Boiler Mixed Combustion

According to the geological conditions of Mabao Coal Mine in Shanxi Province, the width range of the coal pillar of the heading roadway is 6.48~8.97 m calculated by the limit equilibrium theory and the internal and external stress field theory. By using FLAC3D, the vertical stress and plastic zone distribution of coal pillar and the deformation of surrounding rock of roadway were simulated when the width of coal pillar is 5~9 m. The results show that with the increase of coal pillar width, the pe...

Taiyuan University of technology 2023,54(03): ZHENG Wenxiang, ZHUANG Zhipeng, GUO Shuai, YANG Jiaqi. ;

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Study on the Effect of Calcareous Mudstone Dust on Ventilation Gas in Boiler Mixed Combustion

For single steel pipe lightning rod structure that has a circular cross section and low fundamental frequency, wind vibration phenomenon is easy to occur in the operation process. The two-way fluid-structure coupling method was used to conduct three-dimensional numerical wind tunnel simulation, and the mechanical properties and wind vibration response of steel pipe lightning rod structure under seven wind speeds were discussed. The outcomes were and compared with current national standard provisi...

Taiyuan University of technology 2023,54(03): JIAO Jinfeng, SU Yalan, DENG Jie, FU Xingqiang, CHEN Pengcheng. ;

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Experimental Study on Restorability of Traditional Rocking Timber Frame with Four Columns

In order to explore the structural stress characteristics of rocking timber frame in Song Dynasty, the scale model of 1∶2 Song-style four-column four-beam wood frame was tested by horizontal low-cycle reciprocating test. On the basis of the change characteristics of hysteresis curve, skeleton curve, and stiffness degradation curve, the yield stiffness of hysteresis loop,recovery coefficient of displacement, and inter-story displacement concentration factor were used to explore the recoverability...

Taiyuan University of technology 2023,54(03): CHEN Yaxi, NIU Qingfang, WEI Jianwei, LI Tieying. ;

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Experimental Study and Simulation Analysis on Seismic Behavior of Recycled Aggregate Thermal Insulation Concrete Shear Wall

In this paper, four control groups of recycled aggregate thermal insulation concrete shear walls were set up for proposed pseude static tests, and the modeling and analysis of recycled aggregate thermal insulation concrete shear walls were conducted with ANSYS finite element analysis software to study the seismic performance of recycled aggregate thermal insulation concrete shear walls. By comparing the stress cloud map of shear wall elements under low circumferential reciprocal loads and that of...

Taiyuan University of technology 2023,54(03): LI Bo, YANG Rizhen, ZHANG Yu, MA Gang. ;

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Size Effect on Shear Behavior of Ultra-high Performance Concrete Beams

HRB500 steel reinforced ultra-high performance concrete beams with different section sizes were tested to study size effect on shear performance. The experimental phenomena and results of ultra-high performance concrete beams were analyzed. The size effect on ductility, shear crack strength, and shear strength of beams was investigated. Besides, the applicability of the current specification formulas was compared on the basis of the obtained test data. The results show that the failure modes of b...

Taiyuan University of technology 2023,54(03): CAO Xia, QUAN Yongpeng, YANG Zhenxuan, JIN Qizhi, ZHENG Yan. ;

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Social Network Personality Prediction Model Based on Multi-channel Information Fusion

A social network personality prediction model with multi-channel information (MCIPP) is constructed. In the framework of in-depth learning, objective behavior data are used to automatically predict users’ personality traits, and whether users’ online behavior is consistent with their offline personality traits is analyzed.Specifically, the bi-directional long-term and short-term memory network (BiLSTM) and Attention mechanism (Attention) are used to capture the context semantic features of the ...

Taiyuan University of technology 2023,54(03): SUN Lilu, DONG Sen, CHEN Mengwei, ZHU Ling, ZHU Xiaofei, ZHANG Yuanziyan, FENG Yu. ;

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Mitigating GNSS Multipath Effects Based on RHT Slope Mitigation and Adaptive Carrier Signal Tracking

Starting from the traditional receiver loop multipath suppression method, the delay effect of multipath effect on receiver tracking and capture is mitrgated in parallel by correcting the code loop correlation curve distortion and adaptive carrier signal update mechanism to track the weak dynamic carrier signal at two levels. First, an adaptive threshold carrier tracking signal state model is designed to solve the problem of limited signal tracking under high occlusion and low CNR conditions, with...

Taiyuan University of technology 2023,54(03): MA Xiaoli, LI Dengao, ZHAO Jumin. ;

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SARIMA-GRU Crime Prediction Model Based on Nonlinear Combination of BP Neural Network

Aiming at the problems that the current crime prediction model can not capture the composite characteristics of crime sequence data or respond to the dynamic changes of the environment in time, a SARIMA-GRU crime prediction model based on nonlinear combination of BP neural network is proposed. This model nonlinearly combines the prediction results of SARIMA and GRU models on the number of crimes through BP neural network, uses the back-propagation algorithm to learn the weight, and takes the weig...

Taiyuan University of technology 2023,54(03): ZHAI Shengchang, HAN Xiaohong, WANG Li, WU Yongfei, WANG Junyan. ;

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Research on RFID Single Tag Contactless Gesture Recognition Based on Improved Convolutional Neural Network

Compared with the current gesture recognition system based on radio frequency identification technology, the single-tag non-contact gesture recognition system based on convolutional neural network proposed in this paper can maximize user experience. Without the need for the user to carry any equipment, a single tag and single antenna are used to achieve precise gesture recognition. First, the tag phase signal affected by multipath effect is read by adding interference artificially; Second, the ta...

Taiyuan University of technology 2023,54(03): ZHU Biaokai, DENG Wenwen, SONG Jie, YUAN Weijie, LIANG Xinge, DONG Meiya, LIU Sanman, ZHANG Qian, ZHAO Jumin. ;

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Research on Bionic Image Design of Excavator Based on Eye Movement Experiment

In order to meet the modeling design needs of construction machinery products represented by excavators, by combining image bionics, semantic difference method, and eye tracking experiment, a modeling design process system with reference value was proposed. Excavator was taken as the research object and the image bionic object was reasonably selected. The biological characteristics and styling characteristics of excavator were analyzed, so as to establish the mapping relationship between biologic...

Taiyuan University of technology 2023,54(03): XIN Yunsheng, LI Xinyu, BAI Wei, DUAN Zhucheng, LI Haolin, SU Nina. ;

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High Temperature Creep and Mechanical Properties of the Packed-bed Thermal Storage Tank in 50 MWe Solar Power Plant

In order to analyze the packed-bed tank failure and molten salt leakage problems induced by the high temperature creep and alternative stress in the solar power station, a coupled thermal-mechanical method for analyzing the creep and mechanical performances of the commercial tank with 347H material was developed by taking into account the real structure and stress loads, and the corresponding dynamic characteristics in different charging-discharging time were further numerically studied. The resu...

Taiyuan University of technology 2023,54(03): DU Baocun, JIA Fan, GUO Yifan, LI Xiufeng, LEI Yonggang, WANG Fei. ;

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Nanoindentation Mechanical Properties of FeCoCrNiCu High Entropy Alloys:A Molecular Dynamics Study

Nanoindentation of FeCoCrNiCu high entropy alloys (HEAs) was simulated by molecular dynamics (MD) simulation to investigate the mechanical properties of HEAs in terms of Young’s modulus, dislocation, and shear strain. And the effects of loading rates and temperatures on the deformation of alloy matrix were studied. The youngs modulus obtained by fitting was approximately consistent with the experimental results. In nanoindentation, HEAs underwent elastic deformation first, and then began plastic...

Taiyuan University of technology 2023,54(03): SUN Yewei, ZHANG Luming, MA Shengguo, ZHANG Tuanwei, XIN Hao. ;

PDFviewed：abstract