检索结果-内蒙古大学图书馆

IEEE NW Russia Young Researchers in Electrical and Electronic engineering Conference (EIConRusNW)

作者： Alexey E. Titov Irina A. Alferova Dmitry V. Kuznetsov dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia dept. of Scientific Research Don State Technical University Rostov-on-Don Russia dept. of Cyber Security of Information Systems Don State Technical University Rostov-on-Don Russia dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia

The relevance of the present research is related to the search for promising ideas for increasing the maximum slew rate of the output voltage ($\text{SR}_{\text{M}}$) of new-generation operational amplifiers (OpAmps). Proposed circuit techniques that provide (with simultaneous use) an increase in $\text{SR}_{\text{M}}$ by more than 2 orders of magnitude. Such high-speed operational amplifiers are in demand today for application in drivers of high-speed ADCs (AD9208, AD9691, etc.), and as active elements in circuits of analog-to-discrete filters on switched capacitors. It is proposed to introduce (according to the developed rules) a nonlinear differentiating RC-circuit realized based on an additional differential stage and a differentiating capacitor of small capacitance into the classical OpAmps with one integrating correction capacitance. Such circuit "additives" practically do not change the low-signal dynamic and static parameters of the OpAmp, and at a large signal during the transient front, when the input stage enters the nonlinear mode, form a large current overcharge of the integrating correction capacitor. Consequently, the $\text{SR}_{\text{M}}$ of the OpAmp is significantly increased.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Simplified Mecanum Wheel Modelling using a Reduced Omni Wheel Model for Dynamic Simulation of an Omnidirectional Mobile Robot 11

Simplified Mecanum Wheel Modelling using a Reduced Omni Whee...

引用

11th International Conference and Exposition on Electrical And Power engineering, EPE 2020

作者： Dosoftei, Catalin Horga, Vasile Doroftei, Ioan Popovici, Tudor Custura, Stefan 'Gheorghe Asachi' Technical University of Iasi Dept. of Automatic Control and Applied Informatics Romania Self Trust Company Dept. of Mechanical Engineering Design Iasi Romania

ISBN: (纸本)9781728181264

Industrial and technical applications of omnidirectional mobile robots, with Mecanum wheels, are continuously gaining in importance because their excellent mobility, especially in areas with static or dynamic obstacles. The perspective of Industry 4.0 imposes an effective and efficient approach for production in general and then, specific to this application, to implement the control algorithm able to deliver to robot the deliberatively and reactively behaviour. An important tool to achieve these goals is virtualization of the prototype and his simulation in a 3D virtual *** paper presents a simplified method of modelling and kinematics simulation in Simscape Multibody™, taking an omnidirectional mobile robot with advantages related to simulation time. The necessary steps to develop inverse kinematics in robots and global reference frame, for specific omnidirectional mobile robot, are depicted in the paper using bottom-up approach with matrix transformation. The 3D modelling process starts from the CAD design, which is then transferred into a Simscape Multibody™ model in order to study the kinematic and dynamic characteristics. Four typical motion models including moving forward, moving laterally, moving in the diagonal direction and rotation have been simulated in Simscape Multibody™. © 2020 IEEE.

关键词： Inverse kinematics

来源：评论

学校读者我要写书评

暂无评论

Incorporating the COM-B Model for Behavior Change into an Agent-Based Model of Smoking Behaviors: An Object-Oriented Design

Incorporating the COM-B Model for Behavior Change into an Ag...

引用

Simulation Winter Conference

作者： David Tian Hazel Y. Squires Charlotte Buckley Duncan Gillespie Harry Tattan-Birch Lion Shahab Robert West Alan Brennan Jamie Brown Robin C. Purshouse Dept. of Automatic Control and Systems Engineering University of Sheffield UK Sheffield Centre for Health and Related Research School of Medicine and Population Health University of Sheffield UK Institute of Epidemiology and Health University College London UK

ISBN: (数字)9798331534202

ISBN: (纸本)9798331534219

Modeling trajectories in cigarette smoking prevalence, initiation and quitting for populations and subgroups of populations is important for policy planning and evaluation. This paper proposes an agent-based model (ABM) design for simulating the smoking behaviors of a population using the Capability, Opportunity, Motivation - Behavior (COM-B) model. Capability, Opportunity and Motivation are modeled as latent composite attributes which are composed of observable factors associated with smoking behaviors. Three forms of the COM-B model are proposed to explain the transitions between smoking behaviors: initiating regular smoking uptake, making a quit attempt and quitting successfully. The ABM design follows object-oriented principles and extends an existing generic software architecture for mechanism-based modeling. The potential of the model to assess the impact of smoking policies is illustrated and discussed.

关键词： Software architecture Object oriented modeling Trajectory Planning

来源：评论

学校读者我要写书评

暂无评论

Non-collocated Vibration Suppression using Delay-Based controllers with Multiple Fixed Delays*

引用

IFAC-PapersOnLine 2023年第2期56卷 180-185页

作者： Adrian Saldanha Wim Michiels Tomáš Vyhlídal Department of Computer Science KU Leuven Celestijnenlaan 200A 3001 Leuven Belgium Dept. Instrumentation and Control Engineering Faculty of Mechanical Engineering and Czech Institute of Informatics Robotics and Cybernetics Czech Technical University in Prague Prague 6 Czechia

The problem of non-collocated vibration absorption is targeted utilizing a multiparameter delay-based controller. The combined objective is to achieve closed-loop stability and vibration suppression at a target location, which is different from the position of the absorber. This problem can be translated into an optimization problem of shaping the poles of a closed-loop system with delays subject to zero-location constraints. The solution approach involves remodelling the closed-loop system as a system of delay-differential algebraic equations (DDAEs) which allows to systematically account for delays in the control law, thereby enabling a straightforward technique for computation of controller parameters. Finally, the proposed design method is validated by simulation on a lumped parameter model of a mass-spring-damper system.

关键词： vibration suppression time-delay systems DDAE optimization

来源：评论

学校读者我要写书评

暂无评论

Success stories from consumer technology-helping and saving lives

Success stories from consumer technology-helping and saving ...

引用

2021 Zooming Innovation in Consumer Technologies Conference, ZINC 2021

作者： Tonacci, Alessandro Billeci, Lucia Kakarountas, Athanasios Gamboa, Patricia Rogado, Jesus Lozano Institute of Clinical Physiology Pisa Italy University of Thessaly Dept. of Computer Science and Biomedical Informatics Lamia Greece Plux Wireless Biosignals S.A. Lisbon Portugal University of Extremadura Dept. of Electric Electronic and Automatic Engineering Badajoz Spain

ISBN: (纸本)9781665404174

Consumer technology (CT) has a broad amount of fields of application, among which one of the most important ones is represented by healthcare and well-being. Thanks to the quick technological development of ICT, CT have become widespread throughout the citizenship, allowing one to easily self-monitor his/her physiological parameters, checking for eventually dangerous values that could require the assistance from a medical doctor or caregiver. This panel session aims at presenting some CT solutions supporting healthcare during the life cycle of an individual, from early days until later life, providing hints about some of the possible conditions representing the major threats to healthy life throughout the years. © 2021 IEEE.

关键词： Life cycle

来源：评论

学校读者我要写书评

暂无评论

Features of Space Vector Pulse Width Modulation in 5-Phases Cascaded High Voltage Converters

Features of Space Vector Pulse Width Modulation in 5-Phases ...

引用

Advanced Technology (KhPIWeek), IEEE KhPI Week on

作者： Victor Busher Oleksii Chornyi Valerii Tytiuk Oksana Glazeva Vitaliy Kuznetsov Dept. of Electrical Engineering and Electronics National University “Odessa Maritime Academy” Odessa Ukraine Institute of Electromechanics Energy Saving and Automatic Control Systems Kremenchuk Mykhailo Ostrohradskyi National University Kremenchuk Ukraine Kryvyi Rih National University Kryvyi Rih Ukraine Dept. of the electrical engineering Ukrainian State University of Science and Technologies Dnipro Ukraine

ISBN: (数字)9798350384499

ISBN: (纸本)9798350384505

The purpose of this work is to analyze the capabilities of space-vector pulse-width modulation when controlling a 5-phase high-voltage cascade frequency converter in normal mode and several types of emergency situations. Taking into account the large number of controlled power transistors, an asynchronous modulation method is proposed, based on calculating the amplitude values of individual phases at each time based on the duty cycle of space vectors, which allows the control system to use independent switching in each phase. In emergency modes, when individual H-bridges are damaged, it is proposed to use the balanced space vectors method, which ensures the symmetry of the electromagnetic field in the event of a short circuit of both individual cascades and one or two phases of the inverter. Methodology. We use a mathematical and geometric interpretation of variable amplitude space vectors when projecting voltages onto a symmetrical 5-phase load. Results. Analysis of the 1st harmonic of phase voltages showed that the use of the space vector modulation method in the normal operating mode of a 5-phase converter makes it possible to increase the utilization factor of DC voltage sources by 23.1% (instead of 15.6% for a 3-phase converter). If individual H-bridges fail and the voltages in the load phases are balanced, the utilization factor may decrease, but in any case it will remain greater than 1. In this case, the higher harmonics, despite significant distortions in the shape of the phase voltages, are mutually compensated in the electromagnetic field of the load, as evidenced by absence of pulsations and shocks on the graphs of transient processes of the electromagnetic torque of the engine. Balancing of the electromagnetic field in the load is maintained even if one or two phases of the inverter are short-circuited. This significantly increases the survivability of the electric drive, which is especially important in critical mechanisms and technological processes,

关键词： Space vector pulse width modulation Frequency modulation Phase modulation High-voltage techniques Aerospace electronics control systems Harmonic analysis Vectors Inverters Electromagnetic fields

来源：评论

学校读者我要写书评

暂无评论

An open source benchmark simulator for sustainable and flexible pharmaceutical manufacturing

An open source benchmark simulator for sustainable and flexi...

引用

International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Dana Copot Constantin Florin Caruntu Christoph Portier Robin De Keyser Clara Mihaela Ionescu DYSC Research Group Flanders Make EEDT Core lab Ghent University Ghent Belgium Dept. of Automatic Control and Applied Informatics Gheorghe Asachi Technical University of Iasi Iasi Romania Department of Pharmaceutics Ghent University Ghent Belgium

Stimulated by Pharma 4.0, pharmaceutical industry is undergoing a transition from batch to continuous manufacturing (CM). There are manifold of benefits of continuous tablets production such as: increased product quality; improved efficiency; reduced production costs. Even more, CM could accelerate the product development resulting in faster delivery of medicine to patients, and this without affecting product quality. To exploit the advantages of CM, the mainly separated process units need to be integrated to form end-to-end systems from raw material to final product. Such integration requires a deep understanding and a holistic approach toward process development and optimization. In this paper, a feasibility study of using model predictive control for the multi-variable process of tablet production is presented. The simulations have been performed on a novel and unique simulation environment where the main unit processes involved in the manufacturing of tablets are implemented. Preliminary results indicate that the proposed methodology is feasible and implementable on the benchmark simulation.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Switched-Capacitor Low-Pass Filter with Pole Frequency Tuning at Constant Frequency of Switching

Switched-Capacitor Low-Pass Filter with Pole Frequency Tunin...

引用

International Conference on Actual Problems of Electronic Instrument engineering (APEIE)

作者： Darya Y. Denisenko Irina A. Alferova Alexey E. Titov Dmitry V. Kuznetsov Dept. of Scientific Research Don State Technical University Dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia Dept. of Scientific Research Dept. of Cyber Security of Information Systems Don State Technical University Rostov-on-Don Russia Dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia

The circuitry of a switched-capacitor low-pass filter (SCF) is considered, in which it is possible to tune the pole frequency without changing the capacitances of the switched capacitors, for example, by selecting them of the same kind. To study the suggested SCF circuit, the analysis in the time domain was used, and the obtained characteristics of the SCF were further compared with the characteristics of a generalized second-order analog filter. It is shown that the parameters implemented by the suggested filter depend not only on the capacitance values of the switched capacitors, but also on the ratio of the resistances of two additional resistors. Moreover, the SCF pole frequency is determined by the switching frequency of the keys, the ratios of the capacitances of the switched capacitors, as well as the ratio of the resistances of additional resistors. Due to the goal-oriented selection of the resistances of these resistors, it is possible to lower the SCF pole frequency at constant and identical values of the capacitances of the switched capacitors.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Generalized Likelyhood Ratio based Detection on Cyber-Attacks

Generalized Likelyhood Ratio based Detection on Cyber-Attack...

引用

Youth Academic Annual Conference of Chinese Association of Automation (YAC)

作者： Hao Wu Deyu Zhang dept. of Software Henan University of Engineering Zhengzhou China Institute for Automatic Control and Complex Systems University of Duisburg-Essen Duisburg Germany

ISBN: (纸本)9781665465373

In this paper, a generalized likelihood ratio based detection algorithm with a statistical method for threshold setting is proposed to detect cyber-attacks on a unified remote control architecture. Based on an encoder and a decoder embedded on plant side and remote controller side, respectively, not only additive interrupted signal (only effecting output or input signal), but also multiplicative attack signal could be detected easily. Finally, three numerical examples are provided to validate our proposed scheme.

关键词： Additives Automation Statistical analysis Switches Decoding Detection algorithms Cyberattack

来源：评论

学校读者我要写书评

暂无评论

A Representation Theorem, Based on Ideals, for Stonean Residuated Lattices 10

A Representation Theorem, Based on Ideals, for Stonean Resid...

引用

10th IEEE International Conference on Intelligent Systems, IS 2020

作者： Holdon, Liviu-Constantin Technical University of Civil Engineering Dept. of Systems Engineering-Automatic and Informatics Applied Bucharest Romania Dept. of Mathematics International Theoretical High School of Informatics Bucharest Bucharest Romania

ISBN: (纸本)9781728154565

Stonean residuated lattices form a variety which includes among its most important subvarieties the variety of Boolean algebras, Gödel algebras, product algebras and pseudo-complemented MTL-algebras (in fact Stonean residuated lattices are pseudocomplemented). In the present work, in the same spirit of [5], [15], we continue to study the lattice of ideals of a Stonean residuated lattice, we state the pseudocomplementedness theorem of the ideal lattice, the lattice of ideals is a complete distributive Browerian lattice and the representation theorem: Given an Stonean residuated lattice L the correspondence f : I(L) to I(B(L)) that sends each ideal I ? I(L) to the ideal f(I) = {x** : X ? I of B(L) is a lattice isomorphism. In the light of our results the study of ideals in Stonean residuated lattices reduced to the study of ideals of the Boolean skeleton and many results from the literature can be treated from the view of ideals theory in a more simple way. Also, we offer a representation theorem for the spectrum of L. Finally, we study some types of ideals and we mention the possibility to use the theory of ideals in residuated lattices in order to develop applications in medical diagnosis. © 2020 IEEE.

关键词： Diagnosis

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：