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Shape anisotropic Fe3O4 nanotubes for efficient microwave absorption

Nano Research 2020年第3期13卷 621-629页

作者： Jialiang Pan honggui guo Min Wang Hui Yang Haowen Hu Peng Liu Hongwei Zhu State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China The First Scientific Research Institute of Wuxi Wuxi214035China

Although Fe3O4 particles have exhibited excellent microwave absorbing capacity and widely used in practical application due to the synergistic effect of magnetic loss and dielectric loss,their applications are still limited for the required high mass fraction in *** overcome this problem,the development of Fe3O4 materials with low dimensional structures is *** this study,the shape anisotropic Fe3O4 nanotubes(NTs)with low mass ratios were applied to realize efficient microwave *** NTs with different aspect ratios were prepared through facile electrospinning followed by two-step thermal treatments and mechanical *** cross-linked nanotubular structure enabled the absorbers to have much higher electrical conductivity,multiple scattering,polarization relaxation and better anti-reflection surface,while the shape anisotropic NTs maintained significant multiple resonances with stronger *** all were beneficial to microwave absorption with enhanced dielectric loss,magnetic loss and sterling impedance *** showed that the absorber with 33.3 wt.%of short Fe3O4 NTs had minimum reflection loss of-58.36 dB at 17.32 GHz with a thickness of 1.27 mm,and had the maximum effective absorbing bandwidth(EAB)of 5.27 GHz when the thickness was 1.53 *** absorber with 14.3 wt.%of long Fe3O4 NTs presented the widest EAB in certain radar band with attenuated 80.75%X band and 85%Ku band energy bellow-10 dB at the thickness of 2.65 and 1.53 mm,*** study provided an approach for the development of shape anisotropic magnetic absorbing materials,and broadened their practical applications as magnetic absorbers.

关键词： Fe3O4 nanotubes shape anisotropy multiple resonances microwave absorption

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天文定位和天测罗经差的微型计算机算法

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大连海事大学学报 1984年第4期 22-35页

作者： guo honggui et al (Navigation Department) 大连海运学院航海系驾驶自动化研究室

为了使船上驾驶员摆脱繁琐的定位计算工作,我们从1982年9月开始着手“微型计算机航海常用算法软件”的研制工作.本文提出的数学模型、程序是这项工作的主要组成部分之一,它适用于TRS—80和PC—1500.借助此程序进行天测计算和求罗经差,... 详细信息

为了使船上驾驶员摆脱繁琐的定位计算工作,我们从1982年9月开始着手“微型计算机航海常用算法软件”的研制工作.本文提出的数学模型、程序是这项工作的主要组成部分之一,它适用于TRS—80和PC—1500.借助此程序进行天测计算和求罗经差,操作时间不超过3分钟,而其精度完全可以满足航海天文定位的要求,因此值得推广应用.

关键词：天测罗经差微型计算机个人电脑电子数字计算机定点导航天文定位测天定位船位线推算船位天体高度格林时计算机算法

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Data-driven intelligent monitoring system for key variables in wastewater treatment process

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Chinese Journal of Chemical Engineering 2018年第10期26卷 2093-2101页

作者： honggui Han Shuguang Zhu Junfei Qiao Min guo College of Electronic Information & Control Engineering Beijing University of Technology Beijing 100124 China Beijing Key Laboratory of Computational Intelligence and Intelligent System Beijing 100124 China Engineering Research Center of Digital Community Ministry of Education Beijing 100124 China Beijing Laboratory for Urban Mass Transit Beijing 100124 China

In wastewater treatment process(WWTP), the accurate and real-time monitoring values of key variables are crucial for the operational strategies. However, most of the existing methods have difficulty in obtaining the real-time values of some key variables in the process. In order to handle this issue, a data-driven intelligent monitoring system, using the soft sensor technique and data distribution service, is developed to monitor the concentrations of effluent total phosphorous(TP) and ammonia nitrogen(NH_4-N). In this intelligent monitoring system, a fuzzy neural network(FNN) is applied for designing the soft sensor model, and a principal component analysis(PCA) method is used to select the input variables of the soft sensor model. Moreover, data transfer software is exploited to insert the soft sensor technique to the supervisory control and data acquisition(SCADA) system. Finally, this proposed intelligent monitoring system is tested in several real plants to demonstrate the reliability and effectiveness of the monitoring performance.

关键词： Data-driven Soft sensor Intelligent monitoring system Data distribution service Wastewater treatment process

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A data-derived soft-sensor method for monitoring effluent total phosphorus

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Chinese Journal of Chemical Engineering 2017年第12期25卷 1791-1797页

作者： Shuguang Zhu honggui Han Min guo Junfei Qiao College of Electronic Information & Control Engineering Beijing University of Technology Beijing 100124 China Beijing Key Laboratory of Computational Intelligence and Intelligent System Beijing 100124 China Engineering Research Center of Digital Community Ministry of Education Beijing 100124 China Beijing Laboratory for Urban Mass Transit Beijing 100124 China

The effluent total phosphorus(ETP) is an important parameter to evaluate the performance of wastewater treatment process(WWTP). In this study, a novel method, using a data-derived soft-sensor method, is proposed to obtain the reliable values of ETP online. First, a partial least square(PLS) method is introduced to select the related secondary variables of ETP based on the experimental data. Second, a radial basis function neural network(RBFNN) is developed to identify the relationship between the related secondary variables and ETP. This RBFNN easily optimizes the model parameters to improve the generalization ability of the soft-sensor. Finally, a monitoring system, based on the above PLS and RBFNN, named PLS-RBFNN-based soft-sensor system, is developed and tested in a real WWTP. Experimental results show that the proposed monitoring system can obtain the values of ETP online and own better predicting performance than some existing methods.

关键词： Data-derived soft-sensor Effluent total phosphorus Wastewater treatment process Radial basis function neural network Partial least square method

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An analytical model for evaluating the dynamic response of a tunnel embedded in layered foundation soil with different saturations

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Earthquake Engineering and Engineering Vibration 2022年第3期21卷 663-681页

作者： Di honggui guo Huiji Zhou Shunhua Wang Binglong He Chao Zhang Xiaohui Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji UniversityShanghai 201804China The Technical Center of Shanghai Shentong Metro Group Co. Ltd.Shanghai 201103China Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety Tongji UniversityShanghai 201804China

This paper proposes an analytical model for evaluating the dynamic response of an underground railway tunnel in layered foundation soil with different *** soil is modeled as layered media,and the circular tunnel lining is modeled as an infinite Flügge cylindrical *** separation of variables method is used to solve the motion equation of the shell,and the wave equation of the soil is solved using the Helmholtz decomposition theorem.A dynamic matrix reflecting the wave vectors of soil layers is established using the transfer matrix *** on boundary conditions,the tunnel-soil model is coupled using the transformation method of plane wave functions and cylindrical wave *** proposed model is validated by comparison with existing tunnel models,and the effects of saturation and the layered properties of soil on the dynamic response of a layered tunnel-soil system is demonstrated via case studies.

关键词： tunnel unsaturated soil saturation transfer matrix method wave function transformation

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Adoptive transfer of Pfkfb3-disrupted hematopoietic cells to wild-type mice exacerbates diet-induced hepatic steatosis and inflammation

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Liver Research 2020年第3期4卷 136-144页

作者： Xin guo Bilian Zhu Hang Xu honggui Li Boxiong Jiang Yina Wang Benrong Zheng Shannon Glaser Gianfranco Alpini Chaodong Wu Department of Nutrition Texas A&M UniversityCollege StationTXUSA Department of Nutrition and Food Hygiene School of Public HealthCheeloo College of MedicineShandong UniversityJinanChina Department of VIP Medical Service Center The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina Medical Physiology Texas A&M University College of MedicineBryanTXUSA Hepatology and Gastroenterology MedicineIndiana UniversityIndianapolisINUSA Richard L.Roudebush VA Medical Center IndianapolisINUSA

Background and objectives:Hepatic steatosis and inflammation are key characteristics of non-alcoholic fatty liver disease(NAFLD).However,whether and how hepatic steatosis and liver inflammation are differentially regulated remains to be *** that disruption of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3(Pfkfb3/iPfk2)dissociates fat deposition and inflammation,the present study examined a role for Pfkfb3/iPfk2 in hematopoietic cells in regulating hepatic steatosis and inflammation in ***:Pfkfb3-disrupted(Pfkfb3^(+/-))mice and wild-type(WT)littermates were fed a high-fat diet(HFD)and examined for NAFLD ***,bone marrow cells isolated from Pfkfb3^(+/-)mice andWT mice were differentiated into macrophages for analysis of macrophage activation status and for bone marrow transplantation(BMT)to generate chimeric(WT/BMT-Pfkfb3^(+/-))mice in which Pfkfb3 was disrupted only in hematopoietic cells and control chimeric(WT/BMT-WT)*** latter were also fed an HFD and examined for NAFLD *** vitro,hepatocytes were co-cultured with bone marrowderived macrophages and examined for hepatocyte fat deposition and proinflammatory ***:After the feeding period,HFD-fed Pfkfb3^(+/-)mice displayed increased severity of liver inflammation in the absence of hepatic steatosis compared with HFD-fed WT *** inflammatory activation was analyzed,Pfkfb3^(+/-)macrophages revealed increased proinflammatory activation and decreased anti-proinflammatory *** NAFLD phenotype was analyzed in the chimeric mice,WT/BMT-Pfkfb3^(+/-) mice displayed increases in the severity of HFD-induced hepatic steatosis and inflammation compared with WT/BMT-WT *** the cellular level,hepatocytes co-cultured with Pfkfb3^(+/-) macrophages revealed increased fat deposition and proinflammatory responses compared with hepatocytes co-cultured with WT ***:Pfkfb3 disruption only in hematopoietic cells exacerbates HFD-induce

关键词： 6-Phosphofructo-2-kinase/fructose-2,6-biphosphatase 3(Pfkfb3/iPfk2) Hematopoietic cells Hepatic steatosis Inflammation Macrophages

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A study on the evaluation index system of a nationwide fitness campaign in China

A study on the evaluation index system of a nationwide fitne...

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2008奥林匹克科学大会

作者： Tang,honggui guo,Huiping & Li,Xinfeng Wuhan Institute of Physical Education,China

Introduction The purpose of this study was to select the best indicators to reflect the essential characteristics of the Nationwide Fitness Campaign and provide corresponding weighting to these *** order to promote optimal development of the National Fitness Campaign,basic conditions,actualising conditions and future development were periodically *** result was important for the smooth implementation of the Nationwide Fitness Campaign,and promotion of the role of sports in social harmony.

关键词： A study on the evaluation index system of a nationwide fitness campaign in China

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Glycolysis in the control of blood glucose homeostasis

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Acta Pharmaceutica Sinica B 2012年第4期2卷 358-367页

作者： Xin guo honggui Li Hang Xu Shihlung Woo Hui Dong Fuer Lu Alex J.Lange Chaodong Wu Intercollegiate Faculty of Nutrition Department of Nutrition and Food ScienceTexas A&M UniversityCollege StationTX 77843USA Institute of Integrated Chinese and Western Medicine Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430000China Department of Biochemistry Molecular Biology and Biophysicsthe University of MinnesotaMinneapolisMN 55405USA

Glycolysis,a simple pathway of glucose metabolism,critically regulates insulin secretion and metabolic functions of various *** on cell types,rates of glycolysis are determined at various steps of glycolysis that are subjected to the control of key metabolic and regulatory enzyme(S),which include glucokinase,6-phosphofructo-I-kinase,and 6-phosphofructo-2-kinase/fructose-2,*** enzymes are regulated by both nutritional and hormonal signals at the levels of transcription,translation,and post-translational *** hepatocytes,glycolysis is involved in the control of hepatic glucose *** latter,when excessive,contributes to hyperglycemia in *** pancreatic β cells,glycolysis couples glucose-stimulated insulin *** or relatively low levels of circulating insulin causes *** adipocytes,glycolysis generates metabolites for lipogenesis and channels fatty acids from excessive oxidation to triglyceride synthesis,thereby reducing oxidative *** increased proinflammatory status,adipocytes produce pro-hyperglycemic factors and bring about hyperglycemia and insulin *** hypotha lamic neurons,glycolysis conveys nutrient sensing that is related to feeding *** of glycolysis occurs in conditions of insulin deficiency or resistance,and is attributable to inappropriate amount and/or activities of metabolic and regulatory enzymes of *** key metabolic and regulatory enzymes to enhance glycolysis may offer viable approaches for treatment of diabetes.

关键词： Glycolysis Diabetes Insulin resistance Liver Pancreatic beta cells Adipose tissue Hypothalamus Inflammatory response

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一种基于改进型深度学习的非线性建模方法

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信息与控制 2018年第6期47卷 680-686页

作者：王盈旭韩红桂郭民北京工业大学信息学部自动化学院北京100124 计算智能与智能系统北京市重点实验室北京100124 数字社区教育部工程研究中心北京100124

围绕非线性系统的建模问题,提出了一种基于改进型深度学习的非线性建模方法.首先,设计了基于高斯径向基函数的深度信念网络训练模型;其次,利用对比分歧算法对径向基函数的权值、中心和宽度进行调整,并利用反向传播对网络连接权值进行优... 详细信息

围绕非线性系统的建模问题,提出了一种基于改进型深度学习的非线性建模方法.首先,设计了基于高斯径向基函数的深度信念网络训练模型;其次,利用对比分歧算法对径向基函数的权值、中心和宽度进行调整,并利用反向传播对网络连接权值进行优化;最后,将获得的改进型深度学习方法应用于非线性系统建模.实验结果验证了该算法的有效性和可行性.

关键词：深度学习非线性建模径向基函数深度信念网络

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非饱和全空间埋置隧道动力响应半解析模型

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同济大学学报（自然科学版） 2020年第3期48卷 325-331页

作者：狄宏规郭慧吉王炳龙张小会同济大学道路与交通工程教育部重点实验室上海201804 同济大学上海市轨道交通结构耐久与系统安全重点实验室上海201804

将非饱和地基土视为由固、液、气组成的三相介质,圆形隧道衬砌简化为无限长的Flügge薄壁圆柱壳,分别采用Helmholtz矢量分解定理以及分离变量法求解非饱和地基土的波动方程和Flugge薄壁圆柱壳的振动控制方程。结合位移和应力连续性等边... 详细信息

将非饱和地基土视为由固、液、气组成的三相介质,圆形隧道衬砌简化为无限长的Flügge薄壁圆柱壳,分别采用Helmholtz矢量分解定理以及分离变量法求解非饱和地基土的波动方程和Flugge薄壁圆柱壳的振动控制方程。结合位移和应力连续性等边界条件,建立移动简谐荷载下非饱和地基土中埋置隧道动力响应的半解析模型。基于该模型,探讨了非饱和地基土-隧道系统的动力响应特征及饱和度对系统动力响应的影响。结果表明,饱和度对土体的动位移、动应力、超孔隙水压力及土体临界速度等影响较大,计算时应考虑饱和度的影响。

关键词：非饱和地基土隧道动力响应饱和度临界速度

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