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(01)

Construction of Point Defects in TiO2 for Boosting Photocatalytical Hydrogen Evolution

Photocatalytical hydrogen evolution by water splitting with semiconductor photocatalysts is one of the important strategies meet sustainable energy demands. However, the serious recombination of photogenerated charges and weak light absorption are the two factors that limit the application of photocatalytical hydrogen evolution by water splitting. Point defect engineering, as a typical photocatalyst modification strategy, has been verified to be an effective way to improve the catalytic activity ...

Taiyuan University of technology 2022,53(01): XUE Jinbo, GAO Jiaqi. ;

PDFviewed：abstract

MoO3/GO Hybrid Hole Extraction Layer Enables High Efficiency in Organic Solar Cells

The photovoltaic performance of organic solar cells (OSCs) are strongly influenced by the functionality of hole extraction layers. In this work, a bilayer structure hole extraction layer (HEL) of S-MoO3/GO was formed by solution processed MoO3 (S-MoO3) and graphene oxide (GO). The application of hybrid HEL helped polish the interfacial contact between HEL and active layers, resulting in an increased exciton dissociation, diminished charge recombination losses, and more efficient charge extraction...

Taiyuan University of technology 2022,53(01): DONG Peng, WANG Zhongqiang, ZHAO Min, GUO Jian, WANG Xiaoliang, HAO Yuying, WANG Hua. ;

PDFviewed：abstract

High Efficiency Red and White Organic Light Emitting Diodes based Exciplex Host

High efficiency monochrome red and white OLEDs were realized through the control of dopant concentration by employing the exciplex mCP:POT2T as host. The red OLED based on exciplex host achieved the maximum external quantum efficiency (EQE) of 21%, a 44% increase compared with traditional CBP single host. Further, the white OLED with maximum current efficiency, power efficiency and EQE of 41.2 cd/A, 43.1 lm/W, and 19.5%, respectively, was obtained by decreasing the dopant concentration to achie...

Taiyuan University of technology 2022,53(01): WANG Chao, LI Xiangfeng, LIU Zemei, ZHAO Bo. ;

PDFviewed：abstract

Study on the Reaction Behavior of Sodium Thiosulfate and Copper Ion in Waste Acid

Cu and other elements in waste acid from copper smelting flue gas sulphuric acid system have high extraction value. In this paper aiming at the precipitation reaction process of Cu2+ with S2O2-3, through experiments, thermodynamic calculation, and product characterization, the precipitation reaction way of Cu2+ was systematically investigated and analyzed. The kinetic parameters of the main reaction and the side reaction in the vulcanization system were determined experimentally to clarify the la...

Taiyuan University of technology 2022,53(01): WANG Xingkai, LI Yibing, ZHANG Zhonglin, QIAO Ranran, LI Yu, LIU Shibin. ;

PDFviewed：abstract

Study on the Preparation of PVDF Hollow Nanofibers and the Performance of Immobilized Enzymes

A porous polyvinylidene fluoride (PVDF) hollow nanofiber membrane was prepared by using coaxial electrospinning technology, and by adding dopamine (DA) to the inner core spinning solution, DA was insitu polymerized to form polydopamine (PDA) during the immobilization process, therefore laccase and horseradish peroxidase were fixed in the inner cavity of PVD hollow nanofibers. By optimizing the coaxial electrospinning parameters, the influence of the solvent ratio of the PVDF good solution and p...

Taiyuan University of technology 2022,53(01): LIU Ruihong, ZHOU Quan, YANG Fan, WU Lijie, REN Ruipeng, LYU Yongkang. ;

PDFviewed：abstract

Investigation on the Catalytic Reduction Removal of Dissolved Oxygen on Glycine Schiff Base Copper Complex in Boiler Feed Water

In this paper, a stepwise synthesis method was used to synthesize a glycine acid Schiff base copper complex catalyst to catalyze carbonyl hydrazine removal of DO in feedwater. The effects of reaction temperature, pH, mass concentration of catalyst, and carbonyl hydrazine dosage on the catalytic deoxygenation performance were investigated and the optimum conditions were determined. When the reaction temperature is 45 ℃, the dosage of carbonyl hydrazine is 2 times the theoretical amount, the initi...

Taiyuan University of technology 2022,53(01): ZHANG Hengrui, LIANG Meisheng, CHEN Xi, CHEN Guangde. ;

PDFviewed：abstract

nan

nan...

Taiyuan University of technology 2022,53(01): nan. ;

PDFviewed：abstract

A New Classification Model COVID-SERA-NeXt for COVID-19 CXR Images

The Chest X-ray (CXR) images of COVID-19 patients are different from those of normal people, which has been an effective base for making correct diagnosis. It is an important way to help medicine doctors to make the fast and accurate diagnosis for patients by using computer aided automatic classification technique based on the patient chest X-ray images. The new COVID-SERA-NeXt model was proposed in this paper for classifying COVID-19 CXR images by introducing the cross stacked channel attention ...

Taiyuan University of technology 2022,53(01): XIE Juanying, XIA Qin. ;

PDFviewed：abstract

Research on the Method and Application of Joint Extraction of Entity Relations Based on Multihop Attention

Aiming at the problems of lack of potential implicit relation mining between entities and insufficient head entity information extraction in existing methods, a head entityenhanced multihop attention implicit relations joint mining model MultiAir (multihop attention implicit relations joint mining method) was proposed. The method first uses the BERT (bidirectional encoder representations from transformers) model to encode the features of the input sentence and predicts the position of the...

Taiyuan University of technology 2022,53(01): WANG Hong, WU Yanting. ;

PDFviewed：abstract

Study on Power Consumption and Stealing Law of Large-Scale Low Voltage Power Supply Area

There are few studies on power consumption in low-voltage regions with 220 V and 380 V supply voltage at home and abroad, so it is difficult to explore the problem of real-time line loss. In this paper, data mining was done in the four aspects of power supply, power utilization, line loss, and electricity stealing, statistical model and prediction model were established, electric power consumption and stealing law was explored. The statistical model of time series analysis, frequency spectrum ana...

Taiyuan University of technology 2022,53(01): CHEN Xi, SONG Chunhe, WANG Tianran. ;

PDFviewed：abstract

A Novel Contextaware Similar Case Matching and Recommendation Method

As far as we know, it is usually difficult for the accuracy of similar cases obtained by the existing case recommendation methods to meet the needs of judges, and thus the effect of auxiliary judgment is limited. Therefore, in this paper a novel contextaware similar case matching and recommendation model (CASCMR). In order to achieve end-to-end efficient text matching and recommendation was proposed. The model uses a multi-semantic document expression framework to realize the pre-calculation an...

Taiyuan University of technology 2022,53(01): XU Zitao, HUANG Bingsen, PAN Weike, MING Zhong. ;

PDFviewed：abstract

A Multi-Side Fairnes-Aware Recommendation System Based on a Pareto-Efficient Perspective

In this paper proposed was a method to solve the multiside fairness of the recommender system from the perspective of Pareto. It eliminates the sensitive attribute information in the user embedding through the adversarial regularizer, and adopts the negative sampling strategy based on exposure to improve the accuracy of the recommender system, so as to achieve Pareto optimality. In addition, the exposurebased negative sampling strategy solves the problem of item exposure bias to a certain ext...

Taiyuan University of technology 2022,53(01): DU Qingyue, HUANG Xiaowen, SANG Jitao. ;

PDFviewed：abstract

A Review of Recent Advances in the Face Instability Mechanism of Shield Tunnel and Soil Arching Effect

The status quo of the research on the face instability mechanism of shield tunnel is reviewed. The key issue of soil arching effect during shield tunnel face instability is discussed. The face instability mechanism of shield tunnel includes the face instability process, modes, and models. The soil arching effect during face instability of shield tunnel focuses on the evolution of soil arching during face instability process and the face instability models considering the soil arching effect. The ...

Taiyuan University of technology 2022,53(01): LEI Huayang, LIU Min. ;

PDFviewed：abstract

Influence of Torsional Modulus Collapse on Seismic Performance of AFT Structures

Limestone slurry and oxidation air in flue gas desulfurization absorber are supplied by absorber feed tank oxidation fan room. According to the seismic design requirements of an AFT industrial plant of desulfurization system, the influence of composite torsional stiffness on the seismic performance of the structure was analyzed, and the structural monitoring and finite element analysis of the concrete plant were carried out. By taking into account the deterioration of reinforcement, the moment cu...

Taiyuan University of technology 2022,53(01): SONG Bo, XIAO Nan, XU Minglei, KUWATA Yasuko. ;

PDFviewed：abstract

Anisotropy and Mechanical Behaviour of Sand Pile Using 3D DEM Simulation

Because of the anisotropy of the deposited granular material, its accumulation body has hidden danger in engineering. The problems of landslide and uneven surface settlement often occur in engineering.Drained triaxial compression tests under various pressure conditions were simulated by using MatDEM, aiming to investigate the macroand mesoscopic mechanics and critical state characteristics of sand. Fabric tensors were introduced to quantitatively analyze the shearinginduced anisotropy, and th...

Taiyuan University of technology 2022,53(01): MO Pinqiang, ZHAO Zilu, HU Yuchen, LI Guoyao, LIN Haodong. ;

PDFviewed：abstract

Effect of Surface Modification of Polypropylene Fiber on Desiccation Crack Performance of Soil-Cement

In this paper, digital image correlation (DIC) technology was used to evaluate the properties of fiber surface modification (alkali treatment, acid treatment, and silane coupling agent treatment) and fiber content (0%, 0.25%, 0.5%, and 1%) to alleviate desiccation cracks of cement stabilized soft soil subgrade with high water content. The strain of specimen surface, the crack length, and the crack area during drying shrinkage process were measured and compared with those of unmodified specimens, ...

Taiyuan University of technology 2022,53(01): XU Yaxing, YAO Xin, ZHUANG Yan, HU Shunlei, DONG Xiaoqiang. ;

PDFviewed：abstract

Finite Element Analysis of the Influen of Detailed Structural Measures on Static Performance of Complex Tubular Joints

The load-bearing performance of tubular joints mainly depends on the detailed structural measures in the joint domain. In this paper, the 68# joint of the lower chord of the space steel truss with welded tubular joints on the roof of Taiyuan South Railway Station was taken as the research object. The full-scale static test and numerical finite element method were used to explore the effect of the detailed structural measures of the joint domain on the static performance of the joint. The research...

Taiyuan University of technology 2022,53(01): LIU Yuxiong, FAN Jianjun, LIU Zhanxiang, JIAO Jinfeng, LEI Honggang. ;

PDFviewed：abstract

Stability Analysis of Surrounding Rock During Construction of Mountain Integrated Pipe Gallery

The stability of surrounding rock is an important concern in the investigation, design, and construction of mountain integrated pipe gallery. On the basis of the DK6+180 section of the Winter Olympics Integrated Pipe Gallery, the stability of surrounding rock was analyzed by using the deformation modulus of surrounding rock obtained by inversion. The results show that with the increase of reduction factor, the strength parameters of surrounding rock decrease gradually, the vault settlement and cl...

Taiyuan University of technology 2022,53(01): YUAN Honghu, XIE Wenjie, LI Hongen. ;

PDFviewed：abstract

Blind-Area Coverage Enabled for Smart Grids: Integrating Energy-Efficient LoRa Technologies in 5G Network

5G network is considered as enabler for Smart Grids (SG). However, it is inefficient and costly to travel over large area and penetrate physical blind area in SG. The significant improvement in this work is proposing 5G LoRa converged network to offer a seamless, large scale, zero wiring, and real-time IoT monitoring strategy. On the basis of this framework, multiple LoRa Ad-Hoc network can coalesce with the 5G SG network via 5G LoRa intelligent gateway. Experiments and tests in real scenarios de...

Taiyuan University of technology 2022,53(01): ZHANG Jianliang, WU Jian, XUE Honglin, LI Yang, MA Junwei, ZHAO Min, HU Feng. ;

PDFviewed：abstract

Traffic Sign Detection Based on Video Encoding Stream

In order to improve the poor real-time performance of traffic sign detection in natural scenes, a traffic sign detection method based on video stream was proposed. This method makes full use of the correlation between the pixels of the coding block, and the different color and edge characteristics of traffic signs that can be reflected in the code stream. By analyzing the intra-frame prediction mode, the value of coded_block_pattern, and the pixel residual information, the traffic signs are initi...

Taiyuan University of technology 2022,53(01): YANG Jingjing, LI Fujiang, ZHANG Qigui. ;

PDFviewed：abstract