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Grain & Oil Science and Technology 2024年第3期7卷 159-167页

作者： Meiyue Wang Guanhao Bu Yufei Xing mengke ren Yang Wang Yijing Xie College of Food Science and Engineering Henan University of Technology

Soybean protein has high nutritional value, but its functional properties are easily affected by external factors,which limits its application in food industry. In the study, soybean protein isolate(SPI) was modified by dry heat glycation of galactooligosaccharides(GOS). The gel properties, antioxidant properties and structural changes of SPI-GOS conjugates were investigated. The application of SPI-GOS conjugates in noodles was also explored. The results observed that the glycation degree of SPI increased with the increasing reaction time. SDS-PAGE and spectral analysis showed the changes of spatial conformation of SPI after glycation. The antioxidant activity of SPI increased after glycation and DPPH radical scavenging activity of SPI-GOS peaked at 48 h of reaction. The hardness, elasticity and resilience of soybean protein gel reached their relative maximum at 48 h, 48 h and 12 h of glycation reaction, respectively. Moreover, the appropriate addition of glycated SPI improved the quality of noodles. The noodles with 4% addition of SPI-GOS had higher hardness, elasticity and tensile properties. This study will provide an effective method to modify soybean protein and expand the use of soybean protein in food industry.

关键词： Soy protein isolate Glycation Galactooligosaccharide Functional properties Noodles

用于黄曲霉毒素B_(1)快速检测的胶体金试剂盒质量评价

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食品与生物技术学报 2024年第5期43卷 130-137页

作者：尹玉云陶健焦强任梦柯闫瑛楠魏晓媛河南省食品和盐业检验技术研究院河南郑州450003 国家市场监管重点实验室(食品安全快速检测与智慧监管技术) 河南郑州450003 河南省特殊食品工程技术研究中心河南郑州450003

为评估黄曲霉毒素B_(1)(aflatoxin B_(1),AFB_(1))胶体金快速检测试剂盒性能,对6个胶体金快速检测试剂盒生产厂家的产品进行质量评价。以大豆油为基质,通过人为加入标准物质的方法制备盲样,对6个生产厂家的试剂盒组成、前处理过程、显... 详细信息

为评估黄曲霉毒素B_(1)(aflatoxin B_(1),AFB_(1))胶体金快速检测试剂盒性能,对6个胶体金快速检测试剂盒生产厂家的产品进行质量评价。以大豆油为基质,通过人为加入标准物质的方法制备盲样,对6个生产厂家的试剂盒组成、前处理过程、显色情况、性能指标、检测时间等进行评价,并将其用于国家及河南省抽检食用油样品的检测。结果表明,6个生产厂家的试剂盒组成完整,前处理快速,易操作,检测时间短(均在25 min以内),但合格率仅50%,有3个生产厂家的试剂盒因较高的假阴性率而不达标。由此可知,质量优良的快速检测试剂盒能很好地满足实际样品检测需求,但目前市场上的快速检测试剂盒整体质量还有待提升,生产企业应严格按照国家相关标准进行研发和生产,同时国家相关部门要继续完善评价体系,加强监管。

关键词：黄曲霉毒素B_(1) 胶体金快速检测试剂盒质量评价假阴性率评价体系

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A Secure and Cost-Effective Training Framework Atop Serverless Computing for Object Detection in Blasting

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Computer Modeling in Engineering & Sciences 2024年第5期139卷 2139-2154页

作者： Tianming Zhang Zebin Chen Haonan Guo Bojun ren Quanmin Xie mengke Tian Yong Wang Department of Computer and Science Shanghai Jiaotong UniversityShanghai200240China Aerospace System Engineering Shanghai Shanghai200240China State Key Laboratory of Precision Blasting Jianghan UniversityWuhan430056China Beijing Microelectronics Technology Institute Beijing100076China

The data analysis of blasting sites has always been the research goal of relevant *** rise of mobile blasting robots has aroused many researchers’interest in machine learning methods for target detection in the field of *** Computing can provide a variety of computing services for people without hardware foundations and rich software development experience,which has aroused people’s interest in how to use it in the field ofmachine *** this paper,we design a distributedmachine learning training application based on the AWS Lambda *** on data parallelism,the data aggregation and training synchronization in Function as a Service(FaaS)are effectively *** also encrypts the data set,effectively reducing the risk of data *** rent a cloud server and a Lambda,and then we conduct experiments to evaluate our *** results indicate the effectiveness,rapidity,and economy of distributed training on FaaS.

关键词： Serverless computing object detection blasting

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注塑成型模拟理论与数值算法发展综述

中国科学：技术科学 2020年第6期50卷 667-692页

作者：曹伟任梦柯刘春太阮诗伦申长雨郑州大学橡塑模具国家工程研究中心郑州450002 大连理工大学工程力学系大连116024

注塑成型数值模拟近20年取得了长足的发展,应用日益广泛,也面临模拟结果不准确、新方法与商业软件集成困难、微观机理考虑不足等问题与挑战.本文系统回顾注塑成型理论模型的发展历程和各阶段主要成果,简要介绍多尺度模拟方法,分析材料... 详细信息

注塑成型数值模拟近20年取得了长足的发展,应用日益广泛,也面临模拟结果不准确、新方法与商业软件集成困难、微观机理考虑不足等问题与挑战.本文系统回顾注塑成型理论模型的发展历程和各阶段主要成果,简要介绍多尺度模拟方法,分析材料本构模型的特点及适用范围,阐明结晶对状态方程、本构模型的影响,评价求解注塑成型问题的数值方法的特点,指出黏性、黏弹性方法的差异,分析流动前沿追踪方法的优点与缺点,介绍一些特殊物理现象如喷泉流效应的模拟方法,以及充填流动的无网格法.基于现有理论、算法的分析与评价,结合塑料加工行业的实际需求,指出了注塑成型模拟的发展趋势和亟需解决的问题.

关键词：注塑成型本构模型数值方法有限元法边界元法多尺度模拟无网格法

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滴定法测定三种香辛料中二氧化硫本底值

中国食品卫生杂志 2019年第3期31卷 246-249页

作者：郭旭光尹玉云任梦柯河南省口岸食品检验检测所

目的了解花椒、胡椒、八角三种香辛料中二氧化硫的本底值,为香辛料质量安全监测提供判定依据。方法从不同产地采摘新鲜、随后自然晾干的香辛料106份,分为经粉碎和未经粉碎两组,分别采用滴定法和离子色谱分析法测定,对测定结果进行统计分... 详细信息

目的了解花椒、胡椒、八角三种香辛料中二氧化硫的本底值,为香辛料质量安全监测提供判定依据。方法从不同产地采摘新鲜、随后自然晾干的香辛料106份,分为经粉碎和未经粉碎两组,分别采用滴定法和离子色谱分析法测定,对测定结果进行统计分析,评估二氧化硫的本底含量,分析比较粉碎和未粉碎两种处理方法之间及滴定法和离子色谱分析法两种测定方法之间的差异。结果 106份花椒、胡椒、八角中二氧化硫本底值平均分别为0.141、0.079、0.202 g/kg,含量范围分别为0.03~0.30、0.01~0.16、0.04~0.41 g/kg,95%置信区间分别为0.131~0.152、0.073~0.085、0.189~0.215 g/kg。采用不同处理方法和不同测定方法测定后的结果差异均无统计学意义(t=0.768,P>0.05;t=0.692,P>0.05)。结论三种香辛料均存在二氧化硫本底值,建议可将95%置信区间最大值分别作为三种香辛料的本底参考值。

关键词：香辛料二氧化硫本底值

A FAS approach for stabilization of generalized chained forms: part 1. Discontinuous control laws

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Science China(Information Sciences) 2024年第2期67卷 118-143页

作者： Guang-ren DUAN Center for Control Theory and Guidance Technology Harbin Institute of Technology Center for Control Science and Technology Southern University of Science and Technology

In this paper, a type of general nonholonomic systems is proposed, which contains both the Brockett’s two example systems, and their extended n-dimensional chained forms, as special cases. For the stabilization of such systems, a stabilizing controller is proposed based on the fully actuated system(FAS)approach, which is discontinuous at the origin but time-invariant when the open-loop system is time-invariant,and drives the feasible trajectories of the system to the origin exponentially. Furthermore, the proposed FAS approach is also extended to the sub-normal system case and the time-delay system case.

关键词： nonholonomic systems feedback stabilization exponential convergence sub-fully actuated systems time-delay systems

A FAS approach for stabilization of generalized chained forms: part 2. Continuous control laws

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Science China(Information Sciences) 2024年第3期67卷 114-135页

作者： Guang-ren DUAN Center for Control Theory and Guidance Technology Harbin Institute of Technology Shenzhen Key Laboratory of Control Theory and Intelligent Systems Southern University of Science and Technology

In this paper, continuous time-varying stabilizing controllers for the type of general nonholonomic systems proposed and treated in part 1 are designed using the fully actuated system(FAS) approach. The key step is to differentiate the first scalar equation, and by control of the obtained second-order scalar system, a proportional plus integral feedback form for the first control variable is obtained. With the solution to this designed second-order scalar system, the rest equations in the nonholonomic system form an independent time-varying subsystem which is then handled by the FAS approach. The overall designed controller contains an almost arbitrarily chosen design parameter, and is proven to guarantee the uniformly and globally exponential stability of the closed-loop system. The proposed approach is simple and effective,and is demonstrated with a practical example of ship control.

关键词： nonholonomic systems feedback stabilization fully actuated systems Lyapunov stability continuous controllers

Resilient control of flexible hypersonic vehicles against unmatched distributed faults

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Chinese Journal of Aeronautics 2024年第5期37卷 60-70页

作者： Dong ZHAO Wenjing ren School of Artificial Intelligence Anhui UniversityHefei 230601China Key Laboratory of System Control and Information Processing Ministry of EducationShanghai Jiao Tong UniversityShanghai 200240China School of Electrical Engineering and Automation Hefei University of TechnologyHefei 230009China

This paper studies a robust fault compensation and vibration suppression problem of flexible hypersonic *** controlled plant is represented by a cascade system composed of a nonlinear Ordinary Differential Equation(ODE)and an Euler-Bernoulli Beam Equation(EBBE),in which the vibration dynamics is coupled with the rigid dynamics and suffers from distributed faults.A state differential transformation is introduced to transfer distributed faults to an EBBE boundary and a longitudinal dynamics is refined by utilizing T-S fuzzy IF-THEN rules.A novel T-S fuzzy based fault-tolerant control algorithm is developed and related stability conditions are *** robust exponential stability and well-posedness are proved by using the modified l_(0)-semigroup based Lyapunov direct approach.A simulation study on the longitudinal dynamics of flexible hypersonic vehicles effectively verifies the validity of the developed theoretical results.

关键词： Flexible hypersonic vehicles ODE-EBBE cascade Robust exponential stability Unmatched distributed fault compensation Vibration suppression

Progress in modeling and control of probe-and-drogue autonomous aerial refueling

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Chinese Journal of Aeronautics 2024年第5期37卷 6-26,I0001页

作者： Jinrui ren Quan QUAN School of Automation Xi’an University of Posts&TelecommunicationsXi'an 710072China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China

By refueling aircraft while they are in flight,aerial refueling is an efficient technique to extend their endurance and *** Aerial Refueling(AAR)is anticipated to be used to complete aerial refueling for unmanned *** are three aerial refueling methods:the Probe-and-Drogue Refueling(PDR)refueling method,the flying-boom refueling method,and the boom-drogue-adapter refueling *** paper considers the PDR approach,the most challenging of the three,because the flexible hose-drogue assembly has fast dynamics and is susceptible to various kinds of winds,which makes the probe docking with the drogue *** is divided into four phases,namely the rendezvous phase,joining phase,refueling phase,and reform phase,with the refueling phase being the most *** controller design faces the greatest challenge during the docking control of the refueling phase since it calls for a high level of safety,precision,and *** a result,the modeling and control issues encountered during the refueling phase are typical and *** fundamental idea of AAR is presented in the paper first,after which the characteristics and requirements of AAR are *** progress in modeling and control techniques for the AAR’s refueling phase is then systematically ***,potential future work for high safety,precision,and efficiency requirements is examined and suggested.

关键词： Aerial refueling Probe-and-drogue refueling Docking Flight controlsystems Unmanned Aerial Vehicles

Nonlocal symmetries,soliton-cnoidal wave solution and soliton molecules to a(2+1)-dimensional modified KdV system

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Communications in Theoretical Physics 2024年第4期76卷 14-21页

作者： Jianyong Wang Bo ren Department of Mathematics and Physics Quzhou UniversityQuzhou 324000China Department of Mathematics Zhejiang University of TechnologyHangzhou 310014China

A(2+1)-dimensional modified KdV(2DmKdV)system is considered from several ***,residue symmetry,a type of nonlocal symmetry,and the Bäcklund transformation are obtained via the truncated Painlevéexpansion ***,the residue symmetry is localized to a Lie point symmetry of a prolonged system,from which the finite transformation group is ***,the integrability of the 2DmKdV system is examined under the sense of consistent tanh expansion ***,explicit soliton-cnoidal wave solutions are ***,abundant patterns of soliton molecules are presented by imposing the velocity resonance condition on the multiple-soliton solution.

关键词： soliton-cnoidal wave solution nonlocal symmetry soliton molecule (2+1)-dimensional modified KdV system