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Microfluidic Flow Synthesis of Enzyme-Embedded Metal-Organic Frameworks with Stable and Improved Biological Activity

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Microfluidic Flow Synthesis of Enzyme-Embedded Metal-Organic...

积极老龄化背景下老年人电子健康素养研究进展

第十一届全国化学生物学学术会议

作者： chong hu School of Life Sciences Jiangxi Science and Technology Normal University

Microfluidic technology has been extensively employed in chemical and biological synthesis in a time-efficient manner. In this work,we applied a microfluidic chip to the controlled flow synthesis of enzyme-doped zeolitic imidazolate framework(ZIF-8) type metal-organic frameworks(MOFs)2 exhibiting distinct morphological characteristics and biological *** are loaded into separate reservoirs connected by a main microchannel,thus allowing controlled reaction process for self-assembly of enzyme-embedded organometallic *** multiple reactant additions and fluidic manipulations in microchannel we can easily control reaction conditions such as reaction time and diffusive mixing of reagents for synthesis of enzyme-doped MOFs,which,in return,also relate to morphology and activity of enzyme/MOF *** results indicate that the particles obtained by adding enzyme molecules mixed after the metal ions and organic linkers are mixed together hold higher activity than those obtained with other mixing *** also show found that degree of crystallinity of enzyme/MOFs composite is was low due to ultrafast controlled mixing in microfluidic channel,the composite with low degree of crystallinity displays displayed higher activity,*** microfluidic flow synthesis strategy allows fast and continuous crystallization of enzyme/MOF composites with stable and improved catalytic activity and represents an alternative to the conventional time-consuming and multistep MOF synthesis processes.

关键词： Microfluidics Flow synthesis Anticancer Metal-organic frameworks

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中国健康教育 2024年第5期40卷 446-450页

作者：胡重蝶刘艳丽刘小菲罗姣王鑫源李洋洋侯富文山东中医药大学护理学院山东济南2250355

探索了解积极老龄化背景下的老年人电子健康素养现状,总结老年人电子健康素养现存问题、影响因素及提高老年人电子健康素养的干预对策,从而为提升我国老年人电子健康素养、推动智慧化养老服务提供参考。

关键词：积极老龄化老年人电子健康素养电子媒介干预对策

Noise-Tolerant ZNN-Based Data-Driven Iterative Learning Control for Discrete Nonaffine Nonlinear MIMO Repetitive Systems

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IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 344-361页

作者： Yunfeng hu chong Zhang Bo Wang Jing Zhao Xun Gong Jinwu Gao Hong Chen State Key Laboratory of Automotive Simulation and Control Jilin UniversityJilin UniversityChangchun 130025China College of Communication Engineering Jilin UniversityJilin UniversityChangchun 130025China Department of Electromechanical Engineering University of MacaoMacao 999078China School of Artificial Intelligence Jilin UniversityChangchun 130012China IEEE College of Electronics and Information Engineering Tongji UniversityShanghai 200092China

Aiming at the tracking problem of a class of discrete nonaffine nonlinear multi-input multi-output(MIMO) repetitive systems subjected to separable and nonseparable disturbances, a novel data-driven iterative learning control(ILC) scheme based on the zeroing neural networks(ZNNs) is proposed. First, the equivalent dynamic linearization data model is obtained by means of dynamic linearization technology, which exists theoretically in the iteration domain. Then, the iterative extended state observer(IESO) is developed to estimate the disturbance and the coupling between systems, and the decoupled dynamic linearization model is obtained for the purpose of controller synthesis. To solve the zero-seeking tracking problem with inherent tolerance of noise,an ILC based on noise-tolerant modified ZNN is proposed. The strict assumptions imposed on the initialization conditions of each iteration in the existing ILC methods can be absolutely removed with our method. In addition, theoretical analysis indicates that the modified ZNN can converge to the exact solution of the zero-seeking tracking problem. Finally, a generalized example and an application-oriented example are presented to verify the effectiveness and superiority of the proposed process.

关键词： Adaptive control control system synthesis data-driven iterative learning control neurocontroller nonlinear discrete time systems

EXPERIMENTAL STUDY ON BED-LOAD SEDIMENT TRANSPORT IN IRREGULAR WAVE-CURRENT COEXISTENT FIELD

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Journal of Hydrodynamics 2000年第2期12卷 42-53页

作者： Wu, Yongsheng Qin, chongren hu, Mei Tianjin Univ Tianjin China

In order to evaluate bed-load sediment transport in an irregular wave-current coexistent field, a series of experiments were completed in laboratory with an irregularly oscillating tray, which is designed to simulate the irregular wave-current coexistent field. The initial motion of sediment and the rates of transport over flat horizontal bed were tested. Comparison between experimental results of initial motion and modified Shields curve indicates that the Shields curve is still valid for the case of irregular wave-current coexistent field. Analysis of flow regime shows that initial conditions fall within smooth-turbulent transitional region. The results of transport rate show that net sediment transport rate can be expressed approximately as the function of the maximum bottom shear stress and mean shear stress. A dimensionless formula is proposed on the basis of the mechanisms of waves erode sediments and tides transport sediments.

关键词： Flow of water Ocean currents Oscillations Shear stress Water waves

Research on Equipment Management System Based on Robot Laboratory

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Journal of Computer and Communications 2020年第7期8卷 23-31页

作者： chong hu Xin Wang Yunhui Wang School of Data Science and Software Engineering Baoding University Baoding China School of Automotive and Electronic Engineering Baoding University Baoding China

With the expansion of the scale of our hospital robot laboratory, equipment use, reserves are increasing, manual management equipment information has been unable to adapt to daily management, such as data record error rate increased, the number of experiments increased, equipment loss and maintenance is not clearly defined. In order to ensure the safety and accuracy of the equipment, a system of equipment management systems was developed as a result of the conversion to the use of management systems for the recording and storage of information. The design of this system is a perfect robot laboratory equipment management system based on the development of web framework technology for equipment management functions. The back end of this system uses the Java language, the SSM framework as the main body, the database is built by MySQL relational database, the front-end page uses JSP, Bootstrap, jQuery and other technologies, and uses Eclipse project construction tools for system development. After a period of trial operation, the level of laboratory equipment management has been significantly improved.

关键词： Device Management Java Spring SpringMVC MyBatis

About the Optimized Design of the Parking Space on the Campus of a College

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American Journal of Computational Mathematics 2020年第2期10卷 221-229页

作者： Xin Wang Yunhui Wang chong hu School of Data Science and Software Engineering Baoding University Baoding China School of Automotive and Electronic Engineering Baoding University Baoding China

In recent years, with the large increase in the number of motor vehicles in colleges and universities and the lag in campus planning, the relative shortage of parking spaces on campus has become increasingly serious. Taking Baoding College as an example, this article analyzes the current situation of static traffic on campus and finds out the problem of parking on campus through questionnaire surveys and field surveys. Analyze the growth trend of the number of motor vehicles based on the data, use the GM (1, 1) model and the linear fitting model to predict the number of motor vehicles in the future, and determine the size and layout of the parking lot based on the campus size, functional zoning, and road layout. The big campus-based parking system planning method based on big data can effectively solve the problems of small sample data, low accuracy, and poor timeliness of traditional methods, which improves the practicability and scientificity of planning results.

关键词： Static Traffic Parking Space Planning GM (1 1) Linear Fitting

Research on Factors of Linear Algebra Learning Effect

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Journal of Applied Mathematics and Physics 2020年第7期8卷 1362-1373页

作者： Xin Wang chong hu Yunhui Wang School of Data Science and Software Engineering Baoding University Baoding China School of Automotive and Electronic Engineering Baoding University Baoding China

Linear algebra has a very important application in physics and technical disciplines. This article conducted a questionnaire survey on the factors that affect the effect of linear algebra learning;the questionnaire contains several aspects of learning attitude, learning interest, learning methods, teaching methods, etc.;based on recycling data, cross chi-square test and multiple logistic regression analysis are used to obtain the factors that affect the effect of linear algebra learning. The research results show that: learning methods, learning attitudes, teaching methods and elementary algebra basics are the main factors that affect the learning effect of linear algebra;among them, there are positive correlations between teaching methods, learning methods, learning attitudes and learning effects;teaching methods, learning methods 3. The three principal components of learning attitude are positively correlated. Based on the research and analysis, the following conclusions are drawn: finding a suitable learning method for the college students and maintaining a positive learning attitude are effective means to improve the linear algebra learning effect of the college students;in teaching, it is recommended to advance with the times, the teaching content and teaching methods innovate to stimulate students’ interest in learning,

关键词： Linear Algebra Learning Effect Influencing Factors

Preparation of ultrafine Co_3O_4 powders by continuous and controllable combustion synthesis

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Transactions of Nonferrous Metals Society of China 2011年第3期21卷 679-684页

作者：吴冲浒国家钨材料工程技术研究中心厦门钨业股份有限公司技术中心厦门361009 厦门金鹭特种合金有限公司厦门361006

The continuously dynamic-controlled combustion synthesis （CDCCS） was developed based on the continuous fluidization and combustion synthesis technologies. CoC2O4·2H2O powders were transformed to Co3O4 in a gas-solid fluid bed unit designed and build independently, where the reactant of CoC2O4·2H2O powders and the reactant of air were poured and introduced from the top and the bottom of the bed at a certain rates respectively. The reagents met in the bed and ignited at a given low temperature, resulting in formation of Co3O4. The results show a significant difference in combustion wave models. In the case of CDCCS, there was an immobile combustion wave, floating in the combustion zone located in the middle of the bed, instead of propagating of the combustion wave. The temperature of the combustion wave can be controlled by adjusting the flow rate of carrier gas. The resultant Co3O4 powders （diameter size ≤0.8 μm） have a narrow particle size distribution and spherical or quasi-spherical shape. This novel technique has many advantages, such as continuation, efficiency, energy conservation and environmental friendly and has been used in mass production.

关键词： combustion synthesis fluidization cobalt oxide ultrafine powders

Study of the Lift Force Induced by An Interceptor on A High-Speed Mono-hull:The Affecting Factors and Estimation Formula

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China Ocean Engineering 2024年第4期38卷 557-571页

作者： DENG Rui hu Yu-xiao huANG Si-chong SONG Zhi-jie WANG Shi-gang WU Tie-cheng School of Ocean Engineering and Technology Sun Yat-sen Universityand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China

To find a better way to estimate the lift force induced by an interceptor on a high-speed mono-hull ship,a series of high-speed mono-hull ship models are designed and investigated under different *** lift forces are obtained by numerical calculations and validated by a model test in a towing *** factors that influence the force are the interceptor height,velocity,draft,and deadrise *** relationship between each factor and the induced lift force is investigated and *** found that the induced lift mainly depends on the interceptor height and advancing velocity,and is proportional to the square of the interceptor height and *** results also showed that the effects of the draft and deadrise angle are relatively less important,and the relationship between the induced lift and these two factors is generally *** on the results,a formula including the combined effect of all factors used to estimate the lift force induced by the interceptor is developed based on systematic *** proposed formula could be used to estimate the lift force induced by interceptors,especially under high-speed condition.

关键词： high-speed mono-hull ship interceptor lift force formula lift force towing tank test computational fluid dynamics