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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(04)

Deep Adversarial Hashing Method Based on Auto-encoder for Frozen Power Line Image Retrieval

In order to improve the retrieval performance of frozen power line images, a deep adversarial hashing method based on auto-encoder was proposed. First, a new code discriminator was added on top of the existing generator and discriminator to encourage the generated image samples to better represent the real data distribution. Second, a hash coding network was built to learn to generate a compact binary hash code. On the basis of the WGAN-GP loss, we introduced new cross-entropy loss and quantizati...

Taiyuan University of technology 2020,51(04): QIANG Yan HE Long ZHANG Limin WANG Jizong LYU Jun SHI Guohua CHEN Qi. ;

PDFviewed：abstract

Deep Adversarial Hashing Method Based on Auto-encoder for Frozen Power Line Image Retrieval

The traditional minimum spanning tree feature extraction method uses local quantifiable indexes to classify brain diseases, neglects the important role of low weight connections and clusters in information processing in brain network, resulting in the loss of some useful information in the network. Compared with other network features, these indexes show significantly lower feature validity and classification accuracy. In order to solve these problems, we took the minimum spanning tree topologica...

Taiyuan University of technology 2020,51(04): LI Shuting LI Yao WANG Xincan ZHAO Yunpeng CHEN Junjie. ;

PDFviewed：abstract

Research on Dynamic Network Link Prediction

Dynamic network link prediction has attracted the attention of many scholars because of its important theoretical and applied research value. The object of this paper is to comprehensively and deeply discuss the research progress of dynamic network link prediction in recent years, so as to provide a reference for the research in this field. Based on historical snapshot and time perception, this paper elaborates on the design idea of each method and points out the advantages and disadvantages of d...

Taiyuan University of technology 2020,51(04): HAO Xiaorong WANG Li. ;

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Print-scan Invariant Multi-contour Pixel Flipping Text Image Watermark Algorithm

Based on the print-scan invariant, a multi-contour pixel flipped watermarking algorithm for text images was proposed, which contains three measures as follows. First, a watermark compression preprocessing method was proposed. By compressing watermarking information, the number of times of watermark embedding is increased under the condition of a certain total embedding capacity, so as to improve the robustness of the watermark. Second, a multi-contour pixel flipping strategy was proposed, which c...

Taiyuan University of technology 2020,51(04): GUO Wen SONG Chunhua GUAN Hu HUANG Ying NIU Baoning LAN Fangpeng. ;

PDFviewed：abstract

An Improved Vibe Algorithm Combining Gaussian Mixture Model and Adaptive Threshold

In order to solve the problem that the traditional vibe algorithm has "ghost" in the early stage of moving target detection and its adaptability to complex environment is not strong, an improved vibe algorithm was proposed. In the background modeling and initialization stage, the "ghost" is eliminated by combining image morphological processing and blending Gaussian background model, and the adaptive update radius and probability are introduced in the background update stage t...

Taiyuan University of technology 2020,51(04): CAO Rong HAO Xiaoli. ;

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Spatio-temporal Hot Spot Detection Based on Sampling and Filtering

The current efficient algorithm of querying spatio-temporal hot spot is the two-stage map-reduce algorithm based on the Spark distributed computing framework and Getis-Ord statistics. A method S-RSampling(Stratified-Random Sampling) of sampling trajectory data was proposed to solve the problem that traversing all the trajectory data causes serious time consuming and the uneven data distribution causes the resources to be idle in the first stage map-reduce. The method analyzes the distribution of ...

Taiyuan University of technology 2020,51(04): LI Yanyun NIU Baoning KANG Jiaxing. ;

PDFviewed：abstract

Large-scale Brain Network Analysis of High Altitude Hypoxia

In view of the limitations of current processing of altitude data, i.e., extracting simple eigenvalues such as rhythm and energy values of electroencephalogram(EEG) signals, we considered the brain as an interconnected network, combined rhythm and energy with large-scale brain network, and explored the brain damage caused by hypoxia from a new perspective. Relevant research was conducted on residents who have lived at altitudes of 400, 2 890, 3 600 and 4 500 m for two years. The scalp energy was ...

Taiyuan University of technology 2020,51(04): LIU Qian CHAI Jiewei Fan Zeze HUO Jiongyu YAO Rong ALI Usman ZHANG Laifu WANG Zhipeng WEI Xin LI Haifang. ;

PDFviewed：abstract

Application of Brain Network Community Bridges in the Classification of Mild Cognitive Impairment

The mild cognitive impairment(MCI) is highly likely to develop into Alzheimers disease, so early diagnosis of MCI is especially important. In this study, the number of global bridges were selected as the classification feature for the first time. This research used the greedy algorithm of “heap structure” to modularize the resting state functional brain network of MCI and Normal control(NC), then, the redundant functional connections in the network were removed according to the centrality of co...

Taiyuan University of technology 2020,51(04): GAO Yuan WANG Xin NIU Yan CAO Rui XIANG Jie. ;

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Process Simulation and Techno-economic Analysis of Dimethyl Oxalate Synthesis from LDG

Converter gas(LDG) is a by-product gas produced by steel mills with 60% CO, it is usually directly emitted or used as fuel for captive power plant. In this paper a process for the synthesis of dimethyl oxalate(DMO) from LDG was proposed, which mainly includes hydrodesulfurization unit, catalytic deoxidation unit, low temperature methanol washing unit and DMO synthesis unit. At the same time, by using Aspen Plus V10 chemical simulation software, the process simulation, mass and energy analyses, an...

Taiyuan University of technology 2020,51(04): MA Yunqiang ZHAO Zhitong WANG Gui WANG Yulong MA Yingmin DONG Jinxiang. ;

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Study on the Green Technology of 2-Bromothiophene

A green process was developed for the preparation of 2-bromothiophene by using thiophene, a by-product of crude benzene extraction, as reactant, hydrogen peroxide as oxidant and bromine-containing inorganic waste as bromine source, and the selective electrophilic substitution reaction mechanism was analyzed. When the reaction temperature was-10 ℃-10 ℃, and the equimolar ratio was applied, the yield of the target product 2-bromothiophene reached about 95%, and the atomic utilization reached 100%...

Taiyuan University of technology 2020,51(04): SHEN Guobing DUAN Junping LI Guomei LIU Miaoqing LU Jianjun. ;

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Synthesis and Electrocatalytic Oxygen Evolution Performances of CoP/Co@NPC Composites Derived from Z

ZIF-67 nanocrystals were synthesized by hydrothermal method in benzyl alcohol system, and used as precursor templates to obtain nitrogen-doped metallic cobalt-based porous carbon materials(Co@NPC-X(X=700, 800, 900)) through heat treatment at different temperatures. CoP/Co@NPC-350 composites were obtained by further phosphating Co@NPC-800. The morphology, crystal structure, specific surface area and pore size distribution of the samples were characterized by scanning electron microscopy(SEM), tran...

Taiyuan University of technology 2020,51(04): YAO Zhixiang WANG Lina ZHU Meiting ZHANG Feipeng WANG Hongtao XIAO Kui WU Junsheng. ;

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Mechanical Behavior of Basalt Fiber Aluminum Alloy Laminates

The quasi-static mechanical properties of basalt fiber/aluminum alloy laminates under different loading modes were studied by uniaxial tension, shear and three-point bending experiments. A bullet impact loading experiment was performed on basalt fiber/aluminum alloy laminates by using an aerodynamic gun. In the experiment, different mechanical parameters of the laminate material and the typical deformation failure mode under the impact of bullet were obtained. The experimental results show that u...

Taiyuan University of technology 2020,51(04): LIU Weipeng MA Xiaomin LI Xin WU Guiying. ;

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Research on the Control Target of Shanxi Coal Consumption Under the Coordinated Constraint of Air Po

In view of the problem that the total coal consumption control in China has not been decomposed and implemented at the local level, the target of coal consumption control of Shanxi province was proposed, on the basis of the synergistic constraint analysis of atmospheric pollutants and carbon emissions.The target study used data regression analysis to establish a quantitative relationship between atmospheric pollutants and coal consumption, predicted the future total energy consumption and structu...

Taiyuan University of technology 2020,51(04): JI Hongjie WANG Hengkang SU Xudong. ;

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Numerical Study of the Effect of Thermal Stratification on the Flow Field Around a Building

In this study simulated was the flow field structure around a cubic building under different thermal stratifications, by using the RNG k-ε turbulence model. The simulated results were validated by corresponding wind-tunnel experiment. The results show that CFD simulation can reproduce the separation zones, wake regions and cavity zones when airflow passes the building. When atmospheric condition is stable, the separation zones are relatively small near the top and two sides, and the building imp...

Taiyuan University of technology 2020,51(04): GUO Dongpeng WANG Ran LI Yunpeng ZHAO Peng YAO Rentai. ;

PDFviewed：abstract

Effect of Temperature on Nitrogen Removal Preformance of UASB Anammox Reactor and Process Kinetics

In this study, a long term dynamic change in anammox reaction in response to the gradiently decreased and recovered temperature was evaluated in an upflow anaerobic sludge blanket(UASB). Results show that the temperature of 23 ℃ was the turning point for the nitrogen removal performance of UASB reactor. Anaerobic ammonia oxidation reaction in the UASB reactor remained stable and total nitrogen removal efficiency(NRE) was maintained around 87% at 23, 28, 33 ℃. NRE was reduced significantly when ...

Taiyuan University of technology 2020,51(04): ZHOU Mengmeng YANG Wan TAN Xicheng HE Shilong ZHANG Yanlong. ;

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Study on Failure Characteristics and Control Countermeasures of Mining Roadway in Goaf of Extremely

Focusing on the large-scale, long continuous deformation time, and damage to the support system for the coal pillar passing through the entry, under an extremely close distance, of the 3101 coal face in Xinwang Coal Mine, we analysed its characteristics of deformation and failure and revealed the fracture mechanism. FLAC3 D numerical simulation software was used to research the influence of remaining coal pillars on the stress distribution of the roof in the lower coal roof; study the change regu...

Taiyuan University of technology 2020,51(04): GU Pan LI Yanbin LI Ligong WEI Qingliang ZHANG Bo. ;

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Geoheritage Features and Tourism Exploitation Values of Xixian Loess National Geopark of Shanxi Prov

Geoheritage features and tourism exploitation values of Xixian Loess National Geopark of Shanxi Province was studied in detail. The park is divided into two parts, Doupo and Wucheng, with a total area of 61.83 km2. The park is mainly covered by loess, with the Triassic, Neogene, and Quaternary exposed. The 48 geoheritages found in the park are divided into 5 super categories, 8 categories and 10 subcategories, including 4 at the national level, 6 at the provincial level and 38 at the sub-provinci...

Taiyuan University of technology 2020,51(04): LEI Yong LIU Yajun FENG Zhiqiang SHI Hui SUN Zepeng. ;

PDFviewed：abstract

NMR Response of Permeability of Sandstone Subject to Different Temperatures

Deeper understanding of rock permeability after high temperature treatment is of great significance to the construction of high temperature rock mass engineering. Sandstone was used as research object. With the advantage of low-field NMR in non-destructive, precise and quantitative characterization of pore fluid, we investigated the change of sandstone permeability at temperature range of 25-600 ℃. Based on the NMR method, the NMR pore parameters of sandstone were calculated. The numerical relat...

Taiyuan University of technology 2020,51(04): SHAO Jixi HU Yaoqing LIU Zhijun JIN Peihua. ;

PDFviewed：abstract

Optimization Design of Wall Thickness of Fiber Filter Based on SolidWorks and Workbench

Some pieces of key mechanical equipment were optimized to improve the stress distribution of equipment for the requirements of lightweight coal mine equipment. In this paper, the fiber filter of mine water purification station was taken as the research object and SolidWorks was used for parametric modeling. By using Workbench, the maximum stress value of the fiber filter under static load was obtained. The outer wall thickness of the filter spherical tank was optimized by the mothod of Screening ...

Taiyuan University of technology 2020,51(04): MENG Qiaorong GAO Lizhi WANG Yong ZHANG Yongfeng WANG Ranfeng. ;

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Adsorption Mechanism of Coal and Two Oxygen Molecules at Room Temperature

The molecular orbital theory was applied to study the adsorption mechanism of two oxygen molecules by coal active characteristic structure. The results show that the adsorption energy of coal active characteristic structure to two oxygen molecules is large, and oxygen molecules are easily adsorbed onto coal active characteristic structure. The adsorption position of oxygen molecules on coal active characteristic structure benzene ring is located on the top of benzene ring, while that on amino sid...

Taiyuan University of technology 2020,51(04): WANG Xiaobo DENG Cunbao DENG Hanzhong WANG Xuefeng HAO Chaoyu. ;

PDFviewed：abstract