Comprehensive Quality Evaluation of Red Jujube Vinegars Made from Different Varieties Based on Principal Component Analysis by QI Tingting, ZHANG Zhifeng, YANG Xinyu, ZHANG Ruoshi, ZHANG Shuying, REN Jingnan, FAN Gang

“…In order to determine good jujube varieties for the production of vinegar, databases of soluble solids, total acid, transmittance, color, total phenols, total flavonoids, antioxidant properties and volatile flavor components were constructed for jujube vinegars made from four different varieties, Ruoqiang grey jujube from Xinjiang, Zanhuang jujube from Hebei, Tanzao jujube from Shanxi, and Tongxin round jujube from Ningxia. By comparing quality indexes and combining the results of principal component analysis (PCA) and sensory evaluation, it was concluded that Tanzao jujube vinegar was significantly superior to the other three jujube vinegars in terms of total acid content, total flavonoid content, 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging capacity, 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) cationic radical scavenging capacity, hydroxyl radical scavenging capacity, and volatile flavor components, and scored highest in both PCA and sensory evaluation. …”
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Prediction and Evaluation of Coal Mine Coal Bump Based on Improved Deep Neural Network by Shuang Gong, Yi Tan, Wen Wang

“…The DA-DNN model avoids the problem of determining the index weight, is completely data-driven, reduces the influence of human factors, and can realize the learning of complex and subtle deep relationships in incomplete, imprecise, and noisy limited data sets. A coal mine in Shanxi Province is used to predict coal bump with the improved depth learning method. …”
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风机偏心对空冷梁式桥架振动实验研究 by 郭铁能, 孟令军, 白春生, 华旭

“…The vibration problem of air-cooling fan bridge has been troubling the north thermal power plant.Excessive vibration amplitude causes the damage of fan,motor,reducer and other equipment,and affects the stability and economic benefit of power plant operation.In this paper,the vibration speed of the air-cooling fan exceeded the standard as the research object,and the data acquisition instrument and acceleration sensor were used to test the vibration of the air cooling fan bridge in the power plant of xiaoyi in Shanxi Province.According to the frequency characteristics generated by these incentives,the main influence factors of the vibration of the fan bridge caused by the original fan blades were explored.By analyzing the vibration signal,the main influencing factors of the vibration of fan bridge are explored according to the frequency characteristics.The test results show that the excessive vibration of the bridge is caused by the interference force caused by the fan eccentric mass.During the operation of the fan,the phase of the sensor at the middle of the bridge alternates positively and negatively,and the fan shaft produces a sway,which is inconsistent with the expected horizontal vibration of the bridge.In order to verify the rationality of the above analysis,the finite element analysis of the bridge frame was carried out,and the results are consistent with the above conclusions.Through the forced vibration test and hammer test of the fan bridge,it is found that the maximum frequency value of the vibration of the fan bridge caused by eccentric mass is far away from the natural vibration frequency of the fan bridge,and will not cause the resonance phenomenon of the fan bridge.Therefore,the vibration of the fan bridge caused by eccentric mass is only related to the static stiffness of the fan bridge.The test results will provide a basis for the design of beam bridge and the avoidance of vibration caused by fan eccentricity.…”
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Goaf Gas Control Improvement by Optimizing the Adjacent Roadway Large-Diameter Boreholes by Wei Wang, Zongxiang Li, Hongming Yu

“…Using the 2-105 working face of the Tenghui Coal Mine, Shanxi Province, China, as a case study, the distribution patterns of gas concentration and flow field in the goaf for various extraction flow parameters and different positions of boreholes were numerically simulated. …”
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Crystal structure of poly[diaqua-(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2N:N′)-bis(μ2-5-carboxybenzene-1,3-dicarboxylato-O,O′:O″)-aqua-di-zinc dihydrate solvate], C27H28N4O16Zn2... by Zhang Yan, Wang Jia-Xin, Huang Pei-Pei, Wu Ting-Ting, Gao Jia-Hao, Lu Jiu-Fu

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Multi-level governance of low-carbon tourism in rural China: policy evolution, implementation pathways, and socio-ecological impacts by Yi Guo, Shengchao Li

“…This study examines China’s approach to this challenge, employing a mixed-methods approach including analysis of 16 central and 559 provincial policy documents, case studies in 15 rural villages across five provinces (Hunan, Guangdong, Zhejiang, Shanxi, and Hainan), and a survey of 637 stakeholders. …”
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The Stability of Gob-Side Entry Retaining in a High-Gas-Risk Mine by Junwen Zhang, Yulin Li

“…Based on the gob-side entry retaining at the No. 18205 working face in a coal mine in Shanxi Province, theoretical analysis, numerical simulation, and engineering practice were comprehensively used to study the mechanical characteristics of the influence of the width of the filling body beside the roadway and the stability of surrounding rock in a high-gas-risk mine. …”
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Prediction of old goaf residual subsidence integrating EDS-InSAR with EsLSTM in the Loess Plateau, China by Fei Ma, Fei Ma, Qingbin Zhang, Lichun Sui

“…The investigation centers on the 18,001# old goaf area of the Yangquan Coal Mine in Shanxi Province. Using Sentinel-1A imagery, continuous SAR data from 98 periods were acquired and processed via Enhanced Distributed Scatter InSAR technology. …”
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Hydroxyapatite Chitosan Gradient Pore Scaffold Activates Oxidative Phosphorylation Pathway to Induce Bone Formation by Zeliang Zhang, Wei Shang, Lisong Lin

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A semi-supervised learning technique assisted multi-objective evolutionary algorithm for computationally expensive problems by Zijian Jiang, Chaoli Sun, Xiaotong Liu, Hui Shi, Sisi Wang

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New Insights into the Drill Cutting Characteristics and Fault Distribution in Gas-Containing Coal Seams by Xinghua Zhang, Haifeng Wang, Dan Zhao, Zheng Shang, Tianwei Ren, Shuaikang Geng, Xiaorui Hao, Chang Liu, Jinzhou Li

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Modified Stochastic Petri Net-Based Modeling and Optimization of Emergency Rescue Processes during Coal Mine Accidents by Xiao Li, Yongkui Shi, Zaiyong Wang, Wenquan Zhang

“…The “9·28” major water inrush accident in Shanxi Fenxi Zhengsheng Coal Company of China is adopted to evaluate the time performance and accident data of the ER process. …”
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Design and analysis of magnetic circuit for mass transfer 6-DOF magnetic levitation platform by Shinan Cao, Pingjuan Niu, Wei Wang, Sha Sheng, Peilai Peng, Wei Song

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Resistive flexible pressure sensor based on AgNWs–MXENE sponge for robot skin by Xiaoli Wang, Shuai Liu, Weidong Kang, Yanan Zhang, Hairong Kou

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Key Technology Research on the Rapid-Molding In-Closed Retaining-Wall in Filling Mining by Chaowen Hu, Qian Li, Yilong Wang, Ke Chang, Yongyuan Li, Yaqian Wang, Hui Liu

“…Taking Wangtaipu coal mine of the Shanxi Jincheng Anthracite Coal Mining Group as the engineering background, in order to solve the problem of traditional closed brick wall at the end of working face, which consumes a lot of manpower and material resources, and low efficiency, a technology of rapid-molding in-closed retaining-wall was proposed. …”
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Erlotinib therapy for Olmsted syndrome with p.L655P missense mutation in the TRPV3 gene: a case report by Jia Zhang, MengYue Guo, DongYang Yuan, JinYang Wei, Hongzhou Cui, Hongzhou Cui

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Influence of Real-Time Heating on Mechanical Behaviours of Rocks by Bin Gu, Zhijun Wan, Yuan Zhang, Yangsheng Ma, Xiaodong Bernard Xu

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Optimizing biochar yield and composition prediction with ensemble machine learning models for sustainable production by Jingguo Gou, Ghayas Haider Sajid, Mohanad Muayad Sabri, Mohammed El-Meligy, Khalil El Hindi, Nashwan Adnan OTHMAN

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Key issues and countermeasures of coal mine water treatment and recycling by XUE Gang, LIU Jianqi, QIANG Zhibin, WANG Yonggang, GUO Yao, CHEN Hong

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Mechanical Properties of Different Lithological Rocks: A Case Study of the Coal Measure Strata in the Eastern Margin of Ordos Basin, China by Xiong Jian, Wu Jianjun, Liu Junjie, Li Bing, Liu Xiangjun, Liang Lixi

“…In this paper, the mechanical behaviors of different lithological rocks of coal measure strata from Shanxi Formation in the eastern margin of the Ordos Basin, China, were investigated through uniaxial compression tests, and the deformation characteristics and failure modes of different lithological rocks were investigated. …”
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