检索结果-内蒙古大学图书馆

10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021

作者： Saenna, Soraya Khajornrungruang, Panart Blattler, Aran Permpatdechakul, Thitipat Suzuki, Keisuke Bakier, Mohammed A. Graduate School of Computer Science and Systems Engineering Kyushu Institute Technology 680-4 Kawazu Iizuka-shi Fukuoka820-8502 Japan Dept. of Intelligent and Control Systems Advanced Mechanical Division Kyushu Institute of Technology 680-4 Kawazu Iizuka-shi Fukuoka820-8502 Japan

Chemical-Mechanical Polishing (CMP) process has emerged as the method of choice for planarization in the semiconductor industry. The interaction force between the surface being polished and the abrasive nanoparticles plays a significant role in flattening the substrate surface in the CMP process. For example, when the SiO2 nanoparticle is distant from the SiC substrate surface, the interaction force between the surface and the nanoparticles is presented. This force could be analysed using Derjaguin and Landau and Verwey and Overbeek (DLVO) theory and particle Brownian motion. According to the simulation results, we found that very fine abrasive nanoparticle such as smaller than approximately 10 nm is comparatively approach to the surface being polished more certainly. © 2021 The Japan Society of Mechanical Engineers.

关键词： Silicon carbide

来源：评论

学校读者我要写书评

暂无评论

Improving the Efficiency of a Multistage Evaporator Station for Sugar Production Using Neural Networks

Improving the Efficiency of a Multistage Evaporator Station ...

引用

International Conference on Modern Electrical and Energy systems (MEES)

作者： Nataliia Zaiets Nataliia Lutska Lidiia Vlasenko det. of Automation and Robotic Systems National University of Life and Environmental Sciences of Ukraine Kyiv Ukraine dept. of Automation and Computer Technologies of Control Systems National University of Food Technologies Kyiv Ukraine dept. of Software Engineering and Cyber Security State University of Trade and Economics Kyiv Ukraine

ISBN: (纸本)9798350346848

The paper shows the process of developing a model of multistage evaporator station of a sugar factory based on a neural network. The neural network predicts the main performance indicators of the multistage evaporator station, such as the concentration of syrup at the output of the evaporator and the amount of evaporated water at the station. Unlike existing solutions, forecasting is performed in real time based on a set of indicators of the automation system (temperatures, flow rates, levels, pressure, density in the apparatus) and industrial laboratory (concentration of solids at the inlet to the evaporation station). The proposed neural network model has an MLP structure with 27 inputs, 2 outputs and one hidden layer with 20 neurons and predicts these indicators with an error of less than 5%. This allows to increase the informative support of the operator-technologist on the quality indicators of the enterprise without additional load on the industrial laboratory and without additional cost automatic quality devices, as well as to perform timely adjustment of the technological mode of the department.

关键词： Productivity Soft sensors Predictive models Solids Sugar industry Data models Real-time systems

来源：评论

学校读者我要写书评

暂无评论

Study of the Shock Loads Effect on the Operation of Multi-Motor Electric Drives of a Rolling Mill with a Second-order Elastic Coupling

Study of the Shock Loads Effect on the Operation of Multi-Mo...

引用

International Conference on Modern Electrical and Energy systems (MEES)

作者： Valerii Tytiuk Alexey Kalinin Valeriy Druzhinin Vitalii Kuznetsov Oleksii Chornyi Victor Busher Department of Electromechanics Kryvyi Rih National University Kryvyi Rih Ukraine Department of Informative Computer Systems Abylkas Saginov Karaganda Technical University NPJSC Karaganda The Republic of Kazakhstan Department of Power Engineering Karaganda Industrial University NPJSC Temirtau The Republic of Kazakhstan Department of the Electrical Engineering Ukrainian State University of Science and Technologies Dnipro Ukraine Institute of Electromechanics Energy Saving and Automatic Control Systems Kremenchuk Mykhailo Ostrogradskyi National University Kremenchuk Ukraine Dept. of Electrical Engineering and Electronics National University "Odessa Maritime Academy" Odessa Ukraine

This paper presents a study for optimizing a hot rolling mill. The paper is devoted to the study of ways to reduce the effect of shock loads of synchronous electric drives of the roughing mill group on the relative lengthening of the metal strip in the inter-stand gap of the rolling stands of the finishing mill group. The elasticity of the metal strip in the inter-stand gap of the rolling mill has a significant impact on the movement of intercoupled multi-motor electric drives of the finishing mill group. Another crucial route of exposure that influences the motion of the electric drives within the finishing mill group involves the electromagnetic connection between the drives in the roughing and finishing mill groups. The impact of the electromagnetically connected circuits is evident through the effect of shock loads from synchronous electric drives on the angular velocity of the direct current electric drives within the finishing mill group. The characteristics of the electromagnetic communication circuit are established by the power grid arrangement and equipment specifications. To assess the quality of work of electric drives of the finishing mill group, it is proposed to use the relative lengthening of the metal strip in the inter-stand gap, which is an important indirect indicator of the quality of rolling. The mathematical model of a hot rolling mill that takes into account both the elasticity of the metal strip that connects the DC electric drives of the finishing group, and the electromagnetic coupling circuit that takes into account the impact loads of synchronous electric drives of the roughing group on the example of the mill 1700 of ArcelorMittal Temirtau JSC was proposed in this paper. Using the mathematical model developed in Simulink software using the methods of planning the experiment, regression models were obtained to establish the dependence of the parameters of overexcitation of a synchronous motor on the magnitude of the voltage sag in the no

关键词：

来源：评论

学校读者我要写书评

暂无评论

Evaluation of Students' Learning Based on Cybernetic Models with Differential Equations of Fractional Order

Evaluation of Students' Learning Based on Cybernetic Models ...

引用

2021 International e-engineering Education Services Conference, e-engineering 2021

作者： Busher, Victor Chornyi, Oleksii Herasymenko, Larisa Tytyuk, Valeriy Khandakji, Kamal Zakis, Janis National University "odessa Maritime Academy" Dept. of Electrical Engineering and Electronics Odessa Ukraine Kremenchuk Mykhailo Ostrohradskyi National University Institute of Electromechanics Energy Saving and Automatic Control Systems Kremenchuk Ukraine Kryvyi Rih Technical University Dept. of Electromechanics Kryvyi Rih Ukraine Tafila Technical University Department of Electrical Power and Mechatronics Tafila Jordan Riga Technical University Institute of Industrial Electronics and Electrical Engineering Riga Latvia

ISBN: (纸本)9781728134703

In this paper, the implementation of a cybernetic learning model based on differential equations of fractional order is justified. Experimental learning results were obtained by testing students during the academic semester. Based on a heterogeneous differential equation with integer order, learning graphs have been compared to a family of models with fractional order equations. Consequently, fractional-order equations are proved to have better approximation properties. Criteria for assessing the learning and differentiation of teaching methods based on the parameters of fractional order equations are proposed. © 2021 IEEE.

关键词： Differential equations

来源：评论

学校读者我要写书评

暂无评论

Improving super-resolution performance using meta-attention layers

arXiv

引用

arXiv 2021年

作者： Aquilina, Matthew Galea, Christian Abela, John Camilleri, Kenneth P. Farrugia, Reuben A. Dept. of Communications & Computer Engineering Faculty of ICT University of Malta UM Msida Malta Malta Deanery of Molecular Genetic & Population Health Sciences University of Edinburgh Scotland Edinburgh United Kingdom Dept. of Communications & Computer Engineering Faculty of ICT UM Dept. of Computer Information Systems Faculty of ICT UM Dept. of Systems & Control Engineering Faculty of Engineering UM

Convolutional Neural Networks (CNNs) have achieved impressive results across many super-resolution (SR) and image restoration tasks. While many such networks can upscale low-resolution (LR) images using just the raw pixel-level information, the ill-posed nature of SR can make it difficult to accurately super-resolve an image which has undergone multiple different degradations. Additional information (metadata) describing the degradation process (such as the blur kernel applied, compression level, etc.) can guide networks to super-resolve LR images with higher fidelity to the original source. Previous attempts at informing SR networks with degradation parameters have indeed been able to improve performance in a number of scenarios. However, due to the fully-convolutional nature of many SR networks, most of these metadata fusion methods either require a complete architectural change, or necessitate the addition of significant extra complexity. Thus, these approaches are difficult to introduce into arbitrary SR networks without considerable design alterations. In this paper, we introduce meta-attention, a simple mechanism which allows any SR CNN to exploit the information available in relevant degradation parameters. The mechanism functions by translating the metadata into a channel attention vector, which in turn selectively modulates the network’s feature maps. Incorporating meta-attention into SR networks is straightforward, as it requires no specific type of architecture to function correctly. Extensive testing has shown that meta-attention can consistently improve the pixel-level accuracy of state-of-the-art (SOTA) networks when provided with relevant degradation metadata. Despite average memory/runtime overheads of less than ≈2.6%/0.025 seconds for the datasets and models considered, meta-attention improves the performance for both PSNR and SSIM;for PSNR, the gain on blurred/downsampled (×4) images is of 0.2969 dB (on average) and 0.3320 dB for SOTA general and f

关键词： Image reconstruction

来源：评论

学校读者我要写书评

暂无评论

Synchronizing sequences for verification of finite state machines

Synchronizing sequences for verification of finite state mac...

引用

2019 International Conference on Information and Telecommunication Technologies and Radio Electronics, UkrMiCo 2019

作者： Mroshnyk, Maryna Shkil, Olexander Kulak, Elvira Rakhlis, Dariia Pahomov, Yurii Mroshnyk, Anatolii Dept. Specialized Computer Systems Ukrainian State University of Railway Transport Kharkiv Ukraine Dept. Computer Engineering Design Kharkiv National University of Radio Electronics Kharkiv Ukraine Dept. Automation and Control in Technical Systems of the National Technical University Kharkov Polytechnic Institute Kharkiv Ukraine

ISBN: (纸本)9781728126920

The method of detection and localization of design errors in HDL-models of finite state machines with arbitrary output functions was proposed. The diagnostic experiment is carried out bypassing all arcs of the Mealy machine, starting from the initial vertex, including for machines of the "nonexclusive" class. To ensure the return of the machine with a possible design error in the initial state, it is suggested to use synchronizing sequences. Diagnostic experiments were performed in the Active-HDL design environment. © 2019 IEEE

关键词： Diagnistic experiment HDL State diagram State machine Tests Verification Waveform

来源：评论

学校读者我要写书评

暂无评论

Robust Interval Criterion for a Steady Value 30

Robust Interval Criterion for a Steady Value

引用

30th International Scientific Symposium Metrology and Metrology Assurance, MMA 2020

作者： Bekhtin, Y.S. Lupachev, A.A. Kyaw, N.M. Kovalenko, A.V. Petsinyarzh, A.R. National Research University Moscow Power Engineering Institute' Dept. of Diagnostics and Measurement Technologies Moscow Russia Moscow State Technical University Named after N. Bauman Dept. of Automatic Control Systems Moscow Russia

ISBN: (纸本)9781728197197

The work is a development of the interval criterion for determining the moment when the steady-state value of the transition signal occurs. These criteria are used in technologies related to testing complex objects under conditions of parametric uncertainty of its model. The transient signal is analyzed in on-line mode. Therefore, the accuracy of the decision about the time of the end of the tests determines the cost of conducting them. Such tests are characterized by significant dynamic errors that significantly exceed the allowed level. The reasons for this are the parametric uncertainty in the mathematical model of the object and the inability of the deterministic interval criterion to correctly issue a solution under these conditions. It was previously determined that the interval criterion is characterized by the presence of an asymptotic critical value of the criterion. Exceeding the object's real time constant over the critical value gives a false positive result. This situation is characterized by the fact that the desired moment is falsely determined significantly earlier than the optimal solution. You can avoid this situation if you set the criteria to the maximum constant of the object's time. However, this choice leads to significant time losses when analyzing the transition signal. The solution of the problem of guaranteed provision of a given level of dynamic error over the entire range of values of the object model parameter is possible using a robust algorithm. The basis for constructing a robust criterion is to control the duration of the observation interval. For this purpose, the current information about the analyzed signal is used. There are three ways to apply the current information. The first approach is based on the use of an extrapolated estimate of the established value. This allows you to determine the estimate of the current dynamic error and prevent a falsely positive decision of the criterion. The second approach is based on the analys

关键词： analysis of the transition process duration of the observation interval duration of the transition process dynamic error analysis false positive solution robust algorithm

来源：评论

学校读者我要写书评

暂无评论

Optimal Sliding Mode control of Single Arm PAM-Actuated Manipulator

Optimal Sliding Mode Control of Single Arm PAM-Actuated Mani...

引用

11th IEEE International Conference on System engineering and Technology, ICSET 2021

作者： Sadiq, Musaab Esam Humaidi, Amjad Jaleel Kadhim, Saleem Khalefa Mhdawi, Ammar Al Alkhayyat, Ahmed Ibraheem, Ibraheem Kasim General Company for Grain Processing Ministry of Trade Baghdad Iraq University of Technology Control and Systems Eng. Dept. Baghdad Iraq Edge Hill University Department of Computer Science United Kingdom College of Technical Engineering Islamic University Najaf Iraq College of Engineering University of Baghdad Baghdad Iraq

ISBN: (纸本)9781665437660

The manipulators actuated by Pneumatic Artificial Muscles (PAMs) are characterized by high nonlinearity and time varying of their coefficients. Therefore, nonlinear and robust controllers are required to cope with these challenging control problems. This work presents the development of control design for trajectory tracking of PAM-Actuated manipulator based on Sliding Mode control (SMC). The PSO technique is used to tune the design parameters of proposed controller for further enhancement of controlled PAM system performance. A comparison study has been conducted between the optimal and non-optimal SMC controllers via computer simulation using MATLAB programming software. © 2021 IEEE.

关键词： Trajectory tracking System performance Programming Muscles Manipulators systems engineering and theory Numerical simulation

来源：评论

学校读者我要写书评

暂无评论

Comparative Study of Optimal Nonlinear control Schemes for Hanging Mass Actuated by Uncertain Pneumatic Muscle

Comparative Study of Optimal Nonlinear Control Schemes for H...

引用

11th IEEE International Conference on System engineering and Technology, ICSET 2021

作者： Sadiq, Musaab Esam Humaidi, Amjad Jaleel Kadhim, Saleem Khalefa Mahdi, Abdulkareem Sh. Alkhayyat, Ahmed Ibraheem, Ibraheem Kasim General Company for Grain Processing Ministry of Trade Baghdad Iraq University of Technology Control and Systems Eng. Dept. Baghdad Iraq School of Computer Science and Eng. Taylor's University Malaysia College of Technical Engineering Islamic University Najaf Iraq College of Engineering University of Baghdad Baghdad Iraq

ISBN: (纸本)9781665437660

The systems actuated by Pneumatic Artificial Muscles (PAMs) are characterized by high nonlinearity and time-varying of their coefficients. Therefore, nonlinear and robust controllers are required to cope with these challenging control problems. This work presents the development of new control design for trajectory tracking of PAM-Actuated manipulator based on Sliding Mode control (SMC), Backstepping Sliding Mode control (BSMC). The control laws of controlled PAM hanging mass based on SMC and BSMC have been developed according to Lyapunov stability analysis. Additionally, the PSO technique is used to tune the design parameters of proposed controllers for further enhancement of controlled PAM system performance. A comparison study has been conducted among the proposed controllers via computer simulation using MATLAB/Simulink programming software. © 2021 IEEE.

关键词： Trajectory tracking System performance Muscles Programming systems engineering and theory Software Nonlinear dynamical systems

来源：评论

学校读者我要写书评

暂无评论

Live Demo: E2P–Events to Polarization Reconstruction from PDAVIS Events

Live Demo: E2P–Events to Polarization Reconstruction from P...

引用

IEEE computer Society Conference on computer Vision and Pattern Recognition Workshops (CVPRW)

作者： Tobi Delbruck Zuowen Wang Haiyang Mei Germain Haessig Damien Joubert Justin Haque Yingkai Chen Moritz B. Milde Viktor Gruev Sensors Group Institute of Neuroinformatics Univ. of Zurich and ETH Zurich Switzerland AIT Austrian Institute of Technology Center for Vision Automation & Control High-Performance Vision Systems Vienna Austria Intl. Centre for Neuromorphic Systems The MARCS Institute Western Sydney University Sydney Australia Dept. of Electrical and Computer Engineering University of Illinois at Urbana-Champaign Urbana IL USA

This demonstration shows live operation of of PDAVIS polarization event camera reconstruction by the E2P DNN reported in the main CVPR conference paper Deep Polarization Reconstruction with PDAVIS Events (paper 9149 [...

关键词：

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：