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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> 2020,51(06)

Effect of the Large π-conjugated Unit Structure of Small Molecule A-D-A Organic Acceptor on the Stab

The molecular structure of the donor and acceptor materials not only has a decisive effect on the photoelectric conversion efficiency(PCE) of polymer solar cells, but also has an important impact on their stability. In this paper, three similarly structured A-D-A acceptor small molecules(FBR, IDFBR, and IDTBR) were blended with P3 HT to explore the influence of molecular structure on cell stability, aiming at resolving the effect of the π-conjugated unit of non-fullerene acceptor(NFA) molecules ...

Taiyuan University of technology 2020,51(06): GU Huimin YAN Lingpeng LIU Bowen LI Zerui YANG Yongzhen MA Changqi. ;

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Effect of Growth Temperature and Ammonia Flow on the Crystal Structure and Morphology of InN Synthes

InN materials were synthesized on Si(111) substrate by a self-made halide chemical vapor deposition(HCVD) device with expanded blended growth area of reaction source. Indium chloride(InCl3), which has a lower sublimation temperature, was used as the indium source. The effect of growth temperature and ammonia flow on the structure and morphology of InN was discussed. The changes in the crystal structure, morphology, and elemental composition of InN were investigated by X-ray diffraction(XRD), scan...

Taiyuan University of technology 2020,51(06): ZHANG Zhe YU Bin LI Tianbao YU Chunyan JIA Wei GUO Junjie XU Bingshe. ;

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Effect of Support Structure on COS Hydrogenation Property on Mo/MgO-Al2O3Catalyst

MgO-Al2O3 support was synthesed by precipitation method in the presence of different surfactants. Series of Mo/MgO-Al2O3 catalysts were prepared by ultrasonic assisted incipient-wetness impregnation method with molybdenum as the active component. All the samples were characterized by N2 adsorption, X-ray diffraction, H2 temperature-programmed reduction, atomic emission spectrometry, and Raman spectroscopy. The catalytic activity of catalysts for COS hydrogenation in simulated coke oven gas was ev...

Taiyuan University of technology 2020,51(06): SUN Qiuxia WEI Fanjing LI Yujie BAO Weiren CHANG Liping LIAO Junjie. ;

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Study on Carboxylation of Phenylpentacarboxylic Acid and CO2Catalyzed by Cesium Carbonate

The B3 LYP method based on density functional theory at the level of lanl2 dz was used to investigate the thermodynamic properties of the carboxylation reaction from phenylpentacarboxylic acid to mellitic acid with cesium carbonate as the catalyst. This reaction is spontaneous and exothermic in thermodynamics. The reaction equilibrium constant decreases with increasing temperature. The effects of mixing mode, temperature, pressure, and time on the carboxylation reaction were examined by single-fa...

Taiyuan University of technology 2020,51(06): SUN Yuqin WANG Yugao SHEN Jun NIU Yanxia LIU Gang SHENG Qingtao. ;

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Effect of Preparation Method on Activity and Sulfur Resistance of Nickel-based Methanation Catalysts

Nickel-based catalyst is widely used in CO methanation reaction owing to its high activity and selectivity. However, the catalyst is very prone to sulfur poisoning, leading to deactivation. It is urgent to develop nickel-based catalyst with high efficiency, stability, and good resistance. It is well known that different preparation methods have obvious influence on physicochemical and textural properties of the catalyst. In this paper, nickel-based catalyst with NiO content of 20% was prepared by...

Taiyuan University of technology 2020,51(06): QIN Zhifeng HAN Xun BAN Hongyan SUN Pengcheng LIU Yi LI Congming CHANG Liping XIE Kechang. ;

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DFT Study of Structure-activity Relationship of Cu@CNT in Methanol Decomposition

The reaction mechanism of methanol decomposition on the Cu atom(Cu@CNT) encapsulated by carbon nanotube was explored by density functional theory. The adsorption energy of each species involved in the methanol decomposition process and the activation energy as well as the rate of each elementary reaction were calculated by the VASP. The stable adsorption sites of each species were determined on the basis of the adsorption energy data. The stable adsorption site of CH3OH is T1 site, and those of C...

Taiyuan University of technology 2020,51(06): GONG Yaling PANG Ke REN Ruipeng. ;

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Study on Promoting Effect of Gaseous Sulfur Substrate on Sludge Bioleaching

The process of sludge bioleaching was studied by using pure H2S and gaseous sulfur matrix such as odor H2S as the substitute matrix of elemental sulfur. The effects of gaseous sulfur substrate on sludge acclimation, pH, ORP, microbial diversity, EPS infrared spectrum, Cr removal rate, and sludge dewatering performance were discussed. The results show that the intervention of H2S could significantly accelerate the decline rate of pH value in the process of sludge acclimation, reduce the dilution c...

Taiyuan University of technology 2020,51(06): ZHANG Chi SU Bingqin LI Chao YANG Zhihong ZHANG Haiyi PENG Yaya. ;

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A Method of Individual Fluid Intelligence Prediction Using fMRI Based on Deep Learning

Based on deep learning, a new prediction model was proposed to preliminarily explore the feature interpretability. The core idea of the proposed method is that the local functional connectivity density(lFCD) and four dimensional(spatial, temporal) consistency of local neural activities(FOCA) are fed to the autoencoder(AE) separately to extract the temporal and spatial features automatically. And then the features are used to predict the individual fluid intelligence score with deep neural network...

Taiyuan University of technology 2020,51(06): WEN Xin DONG Li YANG Jie LI Hechun XIANG Jie GUO Hao CHEN Junjie. ;

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Analysis on Consensus Mechanism of Major Outbreak Prevention and Control System Based on Blockchain

The development rate of sudden outbreaks is usually extremely rapid, and the traditional technical system is mainly based on the analysis of data from big case samples. Its identification process lacks interaction with the clinic, and it is easy to miss the time window to contain the outbreak. The prevention and control of sudden and unidentified epidemic situations are highly complex. To reach a consensus on early warning requires a process of multi-angle understanding and multi-level communicat...

Taiyuan University of technology 2020,51(06): SHI Lei LI Linfeng. ;

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Maximum Likelihood DOA Estimation Based on Artificial Fish Swarm Algorithms for Acoustic Vector Sens

Maximum likelihood(ML) method has good performance for direction of arrival(DOA) estimation in array signal processing, but it is hardly applicable to engineering because of the computation complexity in determining the signal azimuth by multi-dimensional nonlinear search. In order to reduce the computational complexity of ML method, an ML DOA estimation based on Artificial Fish Swarm Algorithms(AFSA) algorithm for acoustic vector sensor array was proposed. The simulation results show that propos...

Taiyuan University of technology 2020,51(06): WANG Peng HE Xuefang ZHANG Mingxing BAI Yanping. ;

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Research on Real-Time Fatigue Driving Detection and Early Warning Based on Wireless EEG Signal Analy

With EEG signals as the "gold standard" for fatigue detection, aiming at the lack of real-time detection and early warning of current fatigue driving detection based on EEG signals, we designed a simulated driving test to collect and record the "eSense" Attention and Meditation, blink frequency, and the power spectrum of the θ, α, and β waves in real time through the TGAM module and the Bluetooth module. The ratio of attention to meditation, the power spectral density ratio...

Taiyuan University of technology 2020,51(06): WANG Nen ZHOU Zijing ZHAO Yunpeng GUO Hao CHEN Junjie. ;

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Fault Location Algorithm of Control System Based on Improved Density Peak Clustering

To solve the problem of the increasing complexity and difficulty in effective management of the numerous equipment in the power dispatching data center computer rooms, an improved fast density peak clustering algorithm was proposed to perform deep analysis and mining of the massive operational data generated by the equipment in the computer room to accomplish the purpose of accurate fault location. Specifically, on the basis of the original fast density peak clustering algorithm(FDPC), an iterati...

Taiyuan University of technology 2020,51(06): WANG Ting WANG Qibing YAN Zhengshang ZHANG Xiuli XU Limei SHI Xincong ZHU Yanfang QIANG Yan HAO Wei. ;

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Optimal Dispatch of Combined Heat and Power Systems Considering Demand Response and Wind Power Heati

In the heating season in the northern China, the existence of “thermoelectric coupling” for cogeneration units is the main cause why wind power is abandoned. Wind power heating is an effective way to dissipate wind power. First, the time-of-use price strategy could optimize the system load curve to increase the potential grid-connected wind power. Second, the wind power heating project adopts the electric boiler with heat storage, which is complementary to the thermal power plant, as the main m...

Taiyuan University of technology 2020,51(06): PEI Yueyao DU Xinhui LI Gang LIU Haoyang. ;

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Experimental Research on Transformer Core Vibration and Noise under Interharmonic Excitation

An experimental platform was established to measure the vibration and noise of a transformer core under arbitrary interharmonic excitation. On this experimental platform, the influence of interharmonics on vibration and noise was investigated. The waveforms of vibration displacement and noise under different interharmonic excitation conditions were measured. Then, the influence of the frequency and amplitude of interharmonics on the vibration and noise of transformer core was investigated. The fr...

Taiyuan University of technology 2020,51(06): interharmonics; transformer core; vibration; noise;. ;

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Optimal Scale for Extracting Relief Amplitude in Slope Geological Hazard Sensitivity Evaluation

Relief amplitude is one of the important topographic factors in the development of slope geological hazards, but the influence of scale of extraction unit on extracting of relief amplitude is seldom considered in sensitivity assessment studies. Xishan geological block was taken as the research area in Taiyuan City, Shanxi Province, ASTER GDEM V2 and the slope geological hazard distribution information in the research area in 2012 were used as data source in this paper. Arc GIS was taken as the pl...

Taiyuan University of technology 2020,51(06): ZHANG Mingmei XUE Yongan. ;

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Time-series Reconstruction and Classification Quality Evaluation of Landsat Reflectance Data Based o

Land cover classification based on multi-temporal remote sensing data is more accurate than that base on single temporal data. Owing to the low frequency of repeated observations by medium and high resolution sensors, the classification accuracy based on time series images is severely restricted. Spatio-temporal fusion technology is an effective method to address the lack of time series observation data, but its application in classification research based on time series data has not been fully v...

Taiyuan University of technology 2020,51(06): LI Xuan LI Dacheng CHEN Jinyong SUN Kang. ;

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Research on Displacement and Stress Monitoring of Underground Continuous Wall during Excavation of D

The displacement law of the underground continuous wall and the stress variation of the lateral support in deep foundation pit enclosure structure are the key issues to ensure the safety and stability of the foundation pit during excavation. With the deep foundation pit project of the No. 5 reservoir of Taiyuan Railway Station as the background, fiber-optic light grid sensor is used for long-term monitoring of the ground connection wall and the concrete cross brace, and the influence of temperatu...

Taiyuan University of technology 2020,51(06): DU Jian'an LI Teng YANG Songsong WANG Chenlong. ;

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Borehole Destressing Mechanism and Key Parameters Determination of Roadway in Isolated Working Face

In order to solve the problem of the difficulty in controlling roadway in high stress environment of island working face, theoretical analysis and numerical simulation were used to investigate the stress distribution law of island working face, analyze the pressure relief mechanism of roadway drilling, and optimize the drilling parameters. The research results show that: the stress rise areas on both sides of the island face were symmetrically distributed; The mining roadway was in the stress pea...

Taiyuan University of technology 2020,51(06): GUO Zhonghua. ;

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Study on Performance of Shell-and-tube Heat Exchanger with Vertical Layout Louver Baffles

In order to to solve the problems of large dead zones and high resistance of the shell-and-tube heat exchanger with segmental baffles,a novel shell-and-tube heat exchanger with vertical layout louver baffles was proposed. The three-dimensional numerical model of the heat exchanger with vertical layout louver baffles was established, and its flow structure, heat transfer, and resistance performance were investigated. The three-dimensional flow field and temperature distribution of the shell-and-tu...

Taiyuan University of technology 2020,51(06): WANG Zhipeng LEI Yonggang DU Baocun LI Yazi WANG Fei. ;

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Shanxi Traditional Villages from the Perspective of Three Tourism Plates

GIS software was used to analyze the distribution characteristics of Shanxi traditional villages in the three tourism plates in Shanxi orovince, summarized the settlement characteristics of different plates, were summarized, and it was illastrated with examples that traditional villages in different plates can rely on the theme culture and surrounding core scenic spots of the area to explore their development path for their own activation in combination with the traditional architecture, village ...

Taiyuan University of technology 2020,51(06): WANG Jinping ZUO Jing. ;

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