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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

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Shanxi Provincial Education Department

Taiyuan University of Technology

location： home> 2021,52(02)

Effect of Pore Structure of ZIF-9 Based Porous Carbon/Carbon Fiber Composite Material on Performance

A high-density array of ZIF-9 was grown on the carbon fiber of carbon paper by a solvothermal method, followed by one-step pyrolysis and reoxidation to form a ZIF-9 based porous carbon/carbon fiber conductive composite material. SEM, TEM, EDS, XRD, XPS, and BET characterization results show that the materials prepared at different oxidation times had the same morphology and composition; With the increase of oxidation time, the pore size shows the tendency of unimodal porous carbon→bimodal porous...

Taiyuan University of technology 2021,52(02): LIU Panpan ZHOU Xianxian CHEN Liang LI Yu DUAN Donghong HAO Xiaogang XING Lifang LIU Shibin. ;

PDFviewed：abstract

Aerobic Oxidation of Fluorene to 9-fluorenone by Liquid-phase Catalysis and Separation of 9-fluoreno

To realize fluorene oxidation to 9-fluorenone with high selectivity in a short time and highly efficient separation of 9-fluorenon from phenathrene, the effect of solvent and catalyst on the oxidation of fluorene to 9-fluorenone, and the type and dosage of quaternary ammonium salt phase transfer agent with the co-existance of phenathrene was investigated. Thereafter, the separation performance of phenanthrene and 9-fluorenone with different solvents was investigated. The results show that, with x...

Taiyuan University of technology 2021,52(02): SHI Tiantian WANG Ruinan QIAO Yafei YE Cuiping LI Wenying. ;

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Formation of Brominated By-products in Electrochemically Activated Persulfate Oxidation Processes

The electrochemically activated persulfate(PDS)system was constructed with boron-doped diamond(BDD)anode and Ti cathode to study the transformation of bromide in the presence of humic acid(HA).The mechanism of the electroactive system and the generation path of brominated by-products were analyzed through scanning cyclic voltammetry and free radical quenching experiments.The effects of initial PDS dosage,current density,and initial pH on the formation of brominated by-products in the electroactiv...

Taiyuan University of technology 2021,52(02): ZHANG Dongyi ZHANG Feng LI Hongyan WANG Chaoxu CUI Jiali CUI Jianguo. ;

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Coal Gangue-sludge-based Activated Carbon-mediated Enhanced Anaerobic Digestion of Sewage

Coal gangue and waste sludge were used as raw materials for the preparation of composite-based activated carbon. The composition and structural characteristics before and after activation were studied by using experimental devices such as C elemental analyzer, Fourier infrared spectrometer, and scanning electron microscope. The prepared composite-based activated carbon was used in anaerobic digestion process to explore the effect of activated carbon structure on chemical oxygen demand(COD) change...

Taiyuan University of technology 2021,52(02): ZHANG Mingmei ZHU Wei MA Shuya HAO Mengya DUAN Yun. ;

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Preparation and Properties of Poly Lactic Acid/Tannic Acid Composites

Polylactic acid(PLA) is a kind of green and environmentally friendly polymer material with good thermal processing and mechanical properties and biodegradability. However, the properties of poor heat resistance, hardness, and brittleness greatly limit the applications of PLA related materials. In this study, a series of PLA/TA composite films composed of PLA and tannic acid(TA) with different TA contents were prepared. X-ray diffractometry, FTIR spectrometry, thermal gravimetric analysis, electro...

Taiyuan University of technology 2021,52(02): AI Yuwei REN Suxia DONG Lili ZHANG Xiuqiang. ;

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Experimental Study on the Evolution of Granite Permeability Under Thermal Shock

In order to reveal the change law of permeability of high-temperature granite under thermal shock, the permeability of granite specimens at different temperatures was investigated under four cooling conditions: natural cooling in air and thermal shock cooling in water(20 ℃, 60 ℃, 100 ℃). The change rule was analyzed, and the thermal shock damage at different cooling temperatures was quantitatively characterized with the help of the thermal shock factor. The research results show that the incre...

Taiyuan University of technology 2021,52(02): CHENG Zepeng XI Baoping YANG Xinxin HE Shuixin LI Xiaoxue. ;

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Study on the Effect of Pipe Spacing on the Arch Effect in the Pipe-roof Pre-construction Process Met

At present, domestic research on pipe roof pre-construction method mainly relies on construction experience, but has not yet formed an effective theoretical basis.In order to study the influence mechanism of pipe jacking spacing and soil arching effect, the large diameter pipe jacking construction method of pipe curtain preconstruction in Taiyuan Railway Station was taken as the background, according to the theory of soil arching effect, to establish the stress analysis model of soil arch between...

Taiyuan University of technology 2021,52(02): GENG Yan WANG Mei HAN Zhonghui YANG Songsong. ;

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Research on Reconstruction and Quantitative Characterization of Three-dimensional Cracks in Pyrolysi

In order to study the effect of temperature on the permeability of anthracite coal cracks, Jincheng anthracite coal was used as the research object, and the pyrolysis CT scan of Jincheng anthracite coal under different temperatures was performed by using the μCT225 kVFCB scanning system. On the basis of AVIZO three-dimensional visualization reconstruction technology, the internal cracks of coal samples were extracted. The single crack was analyzed separately, the main crack surface of the crack ...

Taiyuan University of technology 2021,52(02): WANG Yong MENG Qiaorong GAO Li ZHANG Yongfeng. ;

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Petrochemical Characteristics of Cenozoic Basalts in Datong, Shanxi

Basalt in the Cenozoic period in Datong, Shanxi can be divided into two types: alkaline basalt in the northwest and tholeiite basalt in the southeast. Petrological and geochemical analyses were carried out on the basalts in Datong area. As known from the differences between them, the basalt magma in the two regions come from different mantle source regions. Their respective petrology characteristics were summarized. In terms of geochemistry, Mg isotope was used as a chemical tracer to further stu...

Taiyuan University of technology 2021,52(02): LI Xiaoqin NIE Xin BAI Zhuona LIU Hongfu FENG Zhiqiang. ;

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Research on Renovation Technology of Existing Office Buildings in Shanxi Province Based on Comprehen

In view of many performance problems of existing office buildings in Shanxi Province, a comprehensive and systematic performance evaluation system model was established from five aspects of site planning, building function, building structure, building equipment, and building value by using analytic hierarchy process. On the basis of this model, the fuzzy evaluation method was used to comprehensively evaluate the performance of existing office buildings in Shanxi Province, and the quantitative ev...

Taiyuan University of technology 2021,52(02): GAO Yubo TIAN Zhifeng DUAN Zhen. ;

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Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash

The treatment of heavy metal-contaminated soil has been a difficult problem for many years. In order to repair heavy metal-contaminated sites with high efficiency, convenience, and low cost, solid wastes red mud and fly ash were used as main curing agents to repair Cu2+-contaminated kaolin. Electrochemical impedance spectroscopy, unconfined compressive strength, and leaching toxicity measurement were carried out. The experimental results show that when the ratio of red mud to fly ash was 7∶3, th...

Taiyuan University of technology 2021,52(02): HE Bin LIU Yan TANG Longhai LIANG Xiaorui LI Du LIANG Weipeng. ;

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Field Measurement of Vibration Response on Large-Span Steel Structure of High-Speed Railway Station

On the basis of the health monitoring system of Taiyuan South Railway Station Steel Structure House, the measured acceleration data of the steel structure station during train arrival、departure and pass, crowd-induced excitations, and construction load excitation were analyzed, so as to evaluate the vibration response characteristics of steel structure station under different test conditions. The results show that the vertical acceleration response frequency of the structure is multiplied by tra...

Taiyuan University of technology 2021,52(02): GUO Hui AN Yi CHENG Xin LEI Honggang. ;

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Analysis of Settlement of Buildings Induced by Shield Tunnels Under Construction

Shield construction will cause soil deformation around the tunnel, and settle and tilt existing buildings on the ground. Aimed at the construction conditions of the flood plain stratum in Fenhe River and the shallow foundation building under the shield in Taiyuan area, this paper carried out the combination of 3 D numerical finite difference software FLAC3 D simulation and field monitoring to aualyze the in fluence of the existence and stiffness of buildings on settlement laws. The results show t...

Taiyuan University of technology 2021,52(02): LIANG Chaoqiang GE Xinsheng ZHAO Juan ZHEN Zheng ZHANG Jun. ;

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Outlier Recognition in Laser Vision Based on Robust Regression

Aiming at the outliers of a laser vision system in the process of bar profile measurement, an outlier identification method based on Robust Local Weighted Regression(RLWR) and 3σ Criterion was proposed. In this method, Robust Local Weighted Regression is used to smooth the data, and then profile outliers are identified from the residual between the smooth data and the measured data according to 3σ Criterion. This method was used to identify the isolated outliers in the process of laser profile ...

Taiyuan University of technology 2021,52(02): YAO Zhibin MA Lifeng ZHI Jinning LIN Suhong CHENG Peng. ;

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Finite Element Simulation and Analysis of Magnesium/Aluminum Composite Tube with Stagger Spinning

In order to explore the deformation behavior of materials during the preparation of magnesium/aluminum composite pipes by offset spinning, and the influence of various factors on the formability of composite tubes, in this study, the effects of parameters such as spinning temperature, thickness reduction, and feed ratio on the coordination of deformation of the inner and outer tubes were analyzed by using finite element simulation. The results show that improving spinning temperature and reductio...

Taiyuan University of technology 2021,52(02): SHI Ning WANG Wenxian ZHANG Tingting CHEN Hongsheng. ;

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A Review on the Research of Homologous Brain Regions in Human and Macaque

Exploring the structure and function of the brain is the most cutting-edge scientific issue in this century. Owing to the limitations of biological experiments on the human brain, the researchers put the research into the brains of non-human primates. Compared with other species, primates have high similarity in brains, and the research results can be popularized among species. This paper reviews the progress of research on the homologous brain regions of humans and macaques in brain research by ...

Taiyuan University of technology 2021,52(02): WANG Qianshan WANG Yue CHAI Jingwen LI Binqiang LI Haifang. ;

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CP-nets Structure Learning Combined with Inverted Matrix and Frequent Pattern Tree Method

A method was preposed for mining conditional preferences and learning CP-nets on the data stream based on the inverted matrix structure. The transaction layout using the inverted matrix reduces the number of times the database is scanned, and through random access, frequent preference items can be found in less than one full scan. In addition, through the establishment of frequent preference tree FP-Tree, the generation of candidates is reduced. Experimental results show that, compared with other...

Taiyuan University of technology 2021,52(02): WANG Weixing LIU Zhaowei. ;

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Recognition and Detection of Terahertz Security Images Based on an Improved Faster R-CNN Network Alg

The terahertz image produced by terahertz imaging system has the characteristics of single hue and sample, low resolution, sharpness, and contrast, and small amount of data. In order to solve these problems, more terahertz image data sets were generated through the DC-GAN network, and the ESRGAN network was used to accomplish terahertz image super-reconstruction and linear transform threshold processing, which makes the image details and texture features clearer, and filters out a lot of backgrou...

Taiyuan University of technology 2021,52(02): WANG Ge ZHU Yan SHEN Tao LIU Yingli ZENG Kai. ;

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Zero-Shot Image Classification Based on Improved Variational Auto-encoder

In the process of zero-shot image classification, problems such as high acquisition cost for samples of known categories and domain drift were addressed. A zero-shot image classification model based on maximum mean difference was proposed to improve the variational auto-encoder. First, the noise factor of samples is separated by maximizing the mean difference to obtain samples closer to the unknown category. Then, the generated sample-assisted learning is used to transform the zero-shot classific...

Taiyuan University of technology 2021,52(02): CAO Zhen XIE Hongwei. ;

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Detection Technology of Uric Acid with a Portable Scanner and Smartphone

Detection of uric acid is crucial for real-time monitoring of human health. In this work, a method of portable scanner-based quantitative detection of uric acid with a smartphone was developed, meanwhile, a filter paper chip was designed and fabricated for the detection process, which provides an on-site, fast, and accurate measurement of the uric acid in human blood serum. The limit of detection was 0.8 mg/dL, and the detection results of human serum samples showed good agreement between the spe...

Taiyuan University of technology 2021,52(02): HOU Pengfei ZHANG Xiaoliang TAN Kang LI Xiaochun. ;

PDFviewed：abstract