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Computer Modeling in Engineering & Sciences 2024年第5期139卷 1935-1960页

作者： Yu Cheng yajun huang Shuai Li Zhongbin Zhou Xiaohui Yuan Yanming Xu College of Architecture and Civil Engineering Xinyang Normal UniversityXinyang464000China Henan Unsaturated Soil and Special Soil Engineering Technology Research Center Xinyang Normal UniversityXinyang464000China College of Intelligent Construction Wuchang University of TechnologyWuhan430223China College of Civil Engineering and Architecture Dalian UniversityDalian116622China Henan International Joint Laboratory of Structural Mechanics and Computational Simulation School of Architecture and Civil EngineeringHuanghuai UniversityZhumadian463000China

A new approach for flexoelectricmaterial shape optimization is proposed in this study.In this work,a proxymodel based on artificial neural network(ANN)is used to solve the parameter optimization and shape optimization problems.To improve the fitting ability of the neural network,we use the idea of pre-training to determine the structure of the neural network and combine different optimizers for training.The isogeometric analysis-finite element method(IGA-FEM)is used to discretize the flexural theoretical formulas and obtain samples,which helps ANN to build a proxy model from the model shape to the target value.The effectiveness of the proposed method is verified through two numerical examples of parameter optimization and one numerical example of shape optimization.

关键词： Shape optimization deep learning flexoelectric structure finite element method isogeometric

Liberation characteristics of coal middlings comminuted by jaw crusher and ball mill

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International Journal of Mining Science and Technology 2013年第5期23卷 669-674页

作者： Xie Weining He Yaqun Zhu Xiangnan Ge Linhan huang yajun Wang Haifeng School of Chemical Engineering and Technology China University of Mining & Technology Advanced Analysis & Computation Center China University of Mining & Technology

The associated minerals make coal middlings possess a relatively high ash content.Subsequent liberation through size reduction can cause recovery increase.However,effect of comminution facilities on mineral liberation of middlings was ignored.This paper studied the liberation characteristics of middlings crushed with different kinds of fragmentation forces.Middlings of 3 mm+0.5 mm sampled from a dense medium cyclone were comminuted by a jaw crusher and a ball mill to 0.5 mm with similar size distribution respectively.The generating mechanism of fnes was also analyzed.Full densimetric analyses indicate that mineral liberation of the product crushed by the jaw crusher is better than that by the ball mill at each fraction.For sizes of 0.125 mm+0.074 mm and 0.074 mm,yields of the product with ash content 11%comminuted by jaw crusher are nearly 20%higher than that by the ball mill.Sectional micrographs observed by the scanning electron microscopy(SEM)also show the same law for these two fractions and some intergrowth particles still exist in the fraction of 0.5 mm+0.25 mm.

关键词： Coal middlings Fragmentation force Liberation Float and sink test Sectional micrograph

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通信信息工程中的传输技术与接入网技术研究

移动信息 2024年第5期46卷 11-14页

作者：黄亚军中国通信建设第三工程局有限公司武汉430022

积极推动经济社会的数字化转型升级,是现阶段及未来一段时间内我国经济社会发展的必然趋势。这一过程需促进通信信息业的融合创新,基于对现阶段通信信息工程发展现状和多元化用网需求的考虑,继续推进新技术在通信信息工程中的融合应用,... 详细信息

积极推动经济社会的数字化转型升级,是现阶段及未来一段时间内我国经济社会发展的必然趋势。这一过程需促进通信信息业的融合创新,基于对现阶段通信信息工程发展现状和多元化用网需求的考虑,继续推进新技术在通信信息工程中的融合应用,提升其整体性能、信息传输效率和安全稳定性。文中围绕传输技术与接入网技术在通信信息工程中的应用展开分析,探讨了技术应用意义及应用要点,并对通信技术的发展提出了建议,希望能对通信信息工程的健康发展提供参考。

关键词：通信信息工程传输技术接入网技术

药学干预在药剂科管理中对促进药物合理应用的影响观察

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临床研究 2024年第6期32卷 93-96页

作者：王微黄雅军洛阳市第一人民医院药剂科河南洛阳471000

目的探究药学干预在药剂科管理中对促进药物合理应用的效果。方法选取洛阳市第一人民医院2021年7月至2022年7月期间收治的38例实施常规用药管理患者为对照组,另选取本院2022年8月至2023年6月期间收治的38例实施药学干预患者为观察组,对... 详细信息

目的探究药学干预在药剂科管理中对促进药物合理应用的效果。方法选取洛阳市第一人民医院2021年7月至2022年7月期间收治的38例实施常规用药管理患者为对照组,另选取本院2022年8月至2023年6月期间收治的38例实施药学干预患者为观察组,对两组用药情况进行观察。结果观察组不合理用药发生率(2.63%)低于对照组(15.79%),差异具有统计学意义(P<0.05);观察组用药不良反应发生率(0)低于对照组(10.53%),差异具有统计学意义(P<0.05);观察组药学相关知识掌握程度总分高于对照组,差异具有统计学意义(P<0.05);观察组诊疗满意度(97.37%)高于对照组(84.21%),差异具有统计学意义(P<0.05)。结论药学干预应用于药剂科管理中能保障药物合理应用,降低不合理用药发生率及用药不良反应发生率,提高患者对药学相关掌握程度,且提高诊疗满意度,值得应用。

关键词：药学干预药剂科药物合理应用用药安全性

Variations in the substrate composition and microbial community structure in the anaerobic fermentation process using the green algae Enteromorpha prolifera

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Food Production, Processing and Nutrition

Food Production, Processing and Nutrition 2022年第1期4卷 408-419页

作者： Chao Ai Aijun Tong Jiahui Wen Ruoxin Chen yajun huang Chao Zhao College of Food Science Fujian Agriculture and Forestry University350002 FuzhouChina College of Food Science and Technology Guangdong Ocean University524088 ZhanjiangChina College of Marine Sciences Fujian Agriculture and Forestry University350002 FuzhouChina Key Laboratory of Marine Biotechnology of Fujian Province Institute of OceanologyFujian Agriculture and Forestry UniversityFuzhouChina

Enteromorpha prolifera is a nutrient-rich green alga and abound in the Yellow Sea and the Bohai Sea of China. In this study, E. prolifera was anaerobically digested for biogas production. The variations of chemical compositions and microbial community structure as well as the physical structure of E. prolifera in anaerobic digestion process were investigated. This is the first report of multiple ways to deeply analysis the process of E. prolifera anaerobic digestion. Results from the present work showed that the biogas obtained from E. prolifera anaerobic digestion could achieve 409.7 mL•g− 1 TS with an average methane concentration of 53.2%, and the VFAs content in substrate played a vital role for driving the biogas production of flora. Moreover, S1 of Thermotogaceae and Cenarchaeum, the dominant bac-teria and archaea in digestion flora, respectively, played important roles in degrading E. prolifera, acidizing slurry, and providing methanogenic substrate for methanogens.

关键词： Enteromorpha prolifera Anaerobic digestion High-throughput sequencing

Global seaweed farming and processing in the past 20 years

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Food Production, Processing and Nutrition

Food Production, Processing and Nutrition 2022年第1期4卷 289-318页

作者： Lizhu Zhang Wei Liao yajun huang Yuxi Wen Yaoyao Chu Chao Zhao College of Food Science Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Marine Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China Key Laboratory of Marine Biotechnology of Fujian Province Institute of OceanologyFujian Agriculture and Forestry UniversityFuzhouChina

Seaweed has emerged as one of the most promising resources due to its remarkable adaptability, short development period, and resource sustainability. It is an effective breakthrough to alleviate future resource crises. Algal resources have reached a high stage of growth in the past years due to the increased output and demand for seaweed worldwide. Several aspects global seaweed farming production and processing over the last 20 years are reviewed, such as the latest situation and approaches of seaweed farming. Research progress and production trend of various seaweed application are discussed. Besides, the challenges faced by seaweed farming and processing are also analyzed, and the related countermeasures are proposed, which can provide advice for seaweed farming and processing. The primary products, extraction and application, or waste utilization of seaweed would bring greater benefits with the continuous development and improvement of applications in various fields.

关键词： Algal farming Algal processing Breeding technology Extraction technology

Control Effect of Validamycin against Seedling Blight of Atractylodes macrocephala

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Plant Diseases and Pests 2018年第3期9卷 27-28页

作者： huang yajun Song Huiming Zhou Xiaojun Zhejiang Institute for the Control of Agrochemicals Hangzhou 310020 China Jinhua Academy of Agricultural Sciences Jinhua 321017 China

[Objective] The paper was to explore the effective agent against seedling blight of Atractylodes macrocephala. [Method] The control effects of 60% validamycin A SP against seeding blight of A. macrocephala were studied in the field, and compared with that of control agent 20% bismerthiazol WP. [Result] At 14 d post the third spraying, the control effect of 60% validamycin A SP at the dose of 495-540 g/hm^2 was 76.9%,which was equivalent to that of control agent 20% bismerthiazol WP sprayed at the dose of 270 g/hm^2(76.7%). [Conclusion] 60% Validamycin A SP could be used as the ideal agent against seedling blight of A. macrocephala, with good prospects of application and popularization.

关键词： Validamycin Atractylodes macrocephala Seedling blight Control effect

Field Efficacy Evaluation of 68% Metalaxyl-M·Mancozeb WDG against Dendrobium officinale Blight

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Plant Diseases and Pests 2018年第3期9卷 12-13页

作者： huang yajun Song Huiming Zhou Xiaojun Zhejiang Institute for the Control of Agrochemicals Hangzhou 310020 China Jinhua Academy of Agricultural Sciences Jinhua 321017 China

The control effect of 68% Metalaxyl-M·Mancozeb WDG against Dendrobium officinale blight was studied. The results showed that the control effect of 68% Metalaxyl-M·Mancozeb WDG at the dose of 1 133-1 360 mg/kg against D. officinale blight was over 78.4% at 14 d post spraying, which was equivalent to that of control agent 72% Cymoxanil·Mancozeb WP(1 200 mg/kg) and 80% Mancozeb WP(1 143 mg/kg).Therefore, 68% Metalaxyl-M·Mancozeb WDG sprayed at the dose of 1 133-1 360 mg/kg could effectively control the damage of D. officinale blight.

关键词： Metalaxyl-M Mancozeb Dendrobium officinale Blight Efficacy

Field Efficacy of 33.5% Oxine-copper SC against Leaf Spot Disease on Waxberry

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Plant Diseases and Pests 2018年第2期9卷 12-13,27页

作者： huang yajun Song Huiming Ding Pei Guo Lifeng Xu Yong huang Xibin Zhejiang Ins titute for the Control of A groche micals Hangzhou 310020 China Agriculture and Fores try Bureau of huangyan District Taizhou 318020 China

Leaf spot disease seriously affects the yield and quality of waxberry, but there is no registration agent for prevention and control of the disease. The field trials showed that the control efficacy of 33.5% oxine-copper SC against leaf spot disease on waxberry reached above 74% when used at the dosage of 167.5-223.3 mg/kg. 33.5% Oxine-copper SC could be used to control leaf spot disease on waxberry.

关键词： Oxine-copper Waxberry Leaf spot disease Field efficacy

Insight into pyrolysis of hydrophobic silica aerogels:Kinetics,reaction mechanism and effect on the aerogels

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Chinese Journal of Chemical Engineering 2023年第6期58卷 266-281页

作者： Xinyu Liu Hongliang Sheng Song He Chunhua Du Yuansheng Ma Chichi Ruan Chunxiang He Huaming Dai yajun huang Yuelei Pan School of Safety Science and Emergency Management Wuhan University of TechnologyWuhan 430070China Wuhan Building Material Industry Design&Research Institute Co. LtdWuhan 430200China State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230027China

Silica aerogels have promising applications in thermal insulation,but their flammability and reaction mechanisms have rarely been investigated.The pyrolysis kinetics and thermodynamics of hydrophobic silica aerogels under N_(2) environment were studied.The kinetic and thermodynamic parameters were obtained by three model-free methods.Based on the calculated kinetic parameters,the pyrolysis mechanism of silica aerogels was discussed by the master plots method.The results indicate that the reactions of the whole pyrolysis phase can be characterized by a random nuclear model.In addition,FTIR test results show that the volatile products of silica aerogel pyrolysis are mainly hydrocarbons generated by the decomposition of hydrophobic groups(methyl groups)on the surface.Finally,the effects of pyrolysis on the properties of silica aerogels Finally,the effects of pyrolysis on the properties of silica aerogels were investigated based on the analysis results of SEM,specific surface area,pore size distribution,X-ray diffraction,XPS and infrared spectroscopy.

关键词： Pyrolysis Thermodynamics Reaction kinetics