检索结果-内蒙古大学图书馆

4th International Conference on High Performance Big Data and Intelligent Systems, HDIS 2022

作者： Yuan, Huajun Li, Hanlin Zhang, Yuhan Du, Shuang Yu, Limin Wang, Xinheng School of Advanced Technology Xi'An Jiaotong-Liverpool University Suzhou215123 China Suzhou Inteleizhen Intelligent Technology Co. Ltd Department of Research and Development Suzhou215123 China Xi'An Jiaotong-Liverpool University Department of Communications and Networking Suzhou215123 China Xi'An Jiaotong-Liverpool University Department of Mechatronics and Robotics Suzhou215123 China

ISBN: (数字)9781665491440

ISBN: (纸本)9781665491440

Path planning is challenging in various extreme and complex environments due to the explosive growth of autonomous mobile robots. The widely used Dynamic Window Approach (DWA) and Time Elastic Band (TEB) local planners are integrated into Robot Operating System (ROS). A great quantity of their parameters has a significant impact on the actual performance of planning. Aiming at the scenario of robots passing through narrow passages, this work compared and optimized the typical DWA and TEB. The results of simulations showed that the improved DWA and TEB local path planners both have better performance with gentler fluctuations of velocity and smoother paths of travel in continuous narrow passages. In addition, the number of collisions was reduced to zero and the time consumption of completing navigation was decreased by an average of 15% and 7%, respectively. Moreover, the general strategies and suggestions for adjusting related parameters of DWA and TEB through narrow passages were given in this paper. Finally, the adjusted TEB local planner was applied to the customized robot in a real similar environment, and it accomplished the navigation stably with a smooth path. The results of real experiments proved the validity and reliability of our work further. © 2022 IEEE.

关键词： Robot Operating System

来源：评论

学校读者我要写书评

暂无评论

Evaluation of design support tools for additive manufacturing and conceptualisation of an integrated knowledge management framework 32

Evaluation of design support tools for additive manufacturin...

引用

32nd Symposium Design for X, DFX 2021

作者： Ellsel, Claudius Werner, Sebastian Göpfert, Jan Stark, Rainer Chair of Industrial Information Technology Technische Universität Berlin Germany Chair of Methods for Product Development and Mechatronics Technische Universität Berlin Germany Forschungszentrum Jülich Germany

Over time, additive manufacturing (AM) has gained more and more adoption into series production. Software tools are developed to assist designers to incorporate specific design for additive manufacturing (DfAM) guidelines into their product development processes. In this paper, an overview of already existing DfAM functionality is given by a review of scientific publications and commercial software products. Additionally, interviews with members of development teams which design AM parts are carried out to assess specific workflows and problems in the current design process. In both investigations, the lack of an integrated and automated software solution emerged. Based on these results, a structure for an integrated design support toolchain is proposed. © 2021 the authors.

关键词： 3D printers

来源：评论

学校读者我要写书评

暂无评论

88-1:Distinguished Paper:Direct Laser Patterning of Glass Mask for Micro Display Using GHz Bursts

引用

SID Symposium Digest of Technical Papers 2024年第1期55卷 1218-1221页

作者： Woohyun Jung Hyungsik Kim Konstantin Mishchik Kisang Lee Jekil Ryu SeungJoo Lee SeongHo Jeong Cheol Lae Roh Samsung Display Equipment Core Technology Development Team 1 Samsung-ro Giheung-gu Youngin-si Gyeonggi-do South Korea 17713 Samsung Display FAB Equipment Development Team 1 Samsung-ro Giheung-gu Youngin-si Gyeonggi-do South Korea 17713 Samsung Display Mechatronics Technology Research Center 1 Samsung-ro Giheung-gu Youngin-si Gyeonggi-do South Korea 17713

development of high-precision RGB patterning process is needed to implement high-resolution micro display (OLEDoS) for next-generation VR/AR products. In general, specially designed and manufactured masks are required to realize above 3,000ppi high-resolution display in structured OLED material deposition. In this study, we implemented direct laser patterning IR-fs optical system operating in MHz and GHz burst modes and evaluated its capability for precise micro-drilling of alumino-borosilicate glass materials. The fine hole-shaped pattern is produced at a minimum of 5µm pitch level for about 0.6 inch area without sacrificing the glass strength. It is expected to contribute to the high precise manufacture of ultra fine mask (UFM) using thin glass platform corresponding to micro displays in the future.

关键词： Micro display Ultrafast laser GHz burst Direct laser patterning Diffractive optics Shadow mask Glass and amorphous materials

来源：评论

学校读者我要写书评

暂无评论

development of a Linear Integer Programming Model for Solving Cutting Stock Problem in the Manufacturing Industry

引用

Procedia CIRP 2024年 126卷 390-395页

作者： Ilesanmi Daniyan Peter Sesan Ayodeji Felix Ale Adefemi Adeodu Khumbulani Mpofu Department of Mechanical & Mechatronics Engineering Achievers University Owo Nigeria Department of Industrial & Production Engineering Federal University of Technology Akure Nigeria Department of Mechanical Engineering University of South Africa Florida South Africa Department of Engineering & Space Systems National Space Research and Development Agency Abuja Nigeria Department of Industrial Engineering Tshwane University of Technology Pretoria 0001 South Africa

Cutting stock problem is a problem generally encountered in many manufacturing industries such as the furniture, clothing, glass production, leather, paper, textile, metals industries amongst others most especially during mass production. The problem usually arises during roll slitting whereby a large role is to be cut into smaller pieces. The challenge may be further compounded due to constraints and different variants that arises from product customization, process and machinery as well as customer requirements and quality issues. To address this problem, this study develops a linear integer programming technique and provides a practical guided approach. First mathematical formulation (having objective function and constraints) comprising of a list of q orders, that requires p j pieces was formulated and a list of all possible cuts combination of configuration and patterns were derived. The linear integer program was solved in the MATLAB 2022 environment. The results indicated that the large rolls can be cut into the desired length, number, patterns and configuration in a time effective manner using the developed linear integer programming technique. The results further show that for the total wastes generated was 24 for the optimal solutions. This number of wastes can be considered to be minimal considering the volume of demand and patterns generated from the stock material. Furthermore, 6 out of the 7 pattern optimal solutions generated zero waste. This study provides theoretical and empirical findings that can assist the manufacturing industries in minimizing time and cost variables while addressing stock cutting problems.

关键词： Cutting stock problem Linear integer programming model Manufacturing industries Mathematical formulation

来源：评论

学校读者我要写书评

暂无评论

Thin film analysis using self-referenced terahertz transient signal for semiconductor manufacturing applications

Thin film analysis using self-referenced terahertz transient...

引用

International Conference on Infrared and Millimeter Waves

作者： Inkeun Baek Sunhong Jun Yoonkyung Jang Martin Priwisch Suhwan Park Eun Hyuk Choi Wontae Kim SungYoon Ryu Taejoong Kim Myungjun Lee Yusin Yang Mechatronics Research Samsung Electronics Co. Ltd. Republic of Korea Common Technology Center Samsung Electronics Co. Ltd. Republic of Korea Process Development Samsung Electronics Co. Ltd. Republic of Korea

ISBN: (数字)9798350370324

ISBN: (纸本)9798350370331

This study presents a novel approach for measuring the sheet resistance of a thin film deposited on unknown substrates for semiconductor manufacturing applications. The primary and echo in a single THz transient were used to compensate for the incoming variation from the thick Si substrate and extract the corrected transmission signal related to the sheet resistance of target thin films. The corrected signal values have a high correlation (R 2 ~0.97) with the sheet resistance of the thin film for production wafers.

关键词： Resistance Semiconductor device measurement Correlation Production Semiconductor device manufacture Silicon Electrical resistance measurement Transient analysis Substrates

来源：评论

学校读者我要写书评

暂无评论

Practical Test of Synchronization Relay 16

Practical Test of Synchronization Relay

引用

16th International Conference on Protection and Automation of Power Systems, IPAPS 2022

作者： Abniki, Hasan Alipour, Hashem Keramat, Mohammad Mostafa Ansari, Sajad Abyaneh, Hossein Askarian Razavi, Farzad Tavanir Technology Research and Development Office Tehran Iran Tavanir Company Transfer Technical Office Tehran Iran Imam Khomeini International University Faculty of Engineering Qazvin Iran Amirkabir University of Technology Faculty of Electrical Engineering Department of Power Tehran Iran Islamic Azad University Faculty of Electrical Engineering Medicine and Mechatronics Qazvin Branch Qazvin Iran

ISBN: (纸本)9781665484374

Numerical relays have such functions as protection, control, measurement, recording and communication and Have to work appropriately compliant with the specifications and operating conditions of the dynamic power system. When relays malfunction, severe damage to the power system equipment may result in loss of power system reliability. To avoid such complications, relays require various tests during development, commissioning, maintenance, configuration and troubleshooting. In This paper addresses the operation of the synchronization relay, which is generally used to interconnect two zones of the power system together. In addition, a practical test of the synchronization relay is performed. These tests include performance tests and testing of amplitude, phase, and frequency thresholds in synchrocheck, Synchron, and Async modes, as well as function tests in the dead-live, live-dead and dead-dead conditions. © 2022 IEEE.

关键词： Synchronization

来源：评论

学校读者我要写书评

暂无评论

High-Resolution NLP for Social Healthcare Networks: Text Classification through Integration of Causal Dilated Cosine Architecture Optimized by Weighted Leadership Navigator for Advanced Insights 4

High-Resolution NLP for Social Healthcare Networks: Text Cla...

引用

4th IEEE International Conference on ICT in Business Industry and Government, ICTBIG 2024

作者： Karpagavadivu, K. Sakthivel, Senthilkumar Ramya, M. Kaliappan, Seeniappan Maranan, R. Nitheesh, S. Dr. N.G.P Institute of Technology Kalapatti Village Nehru Nagar Coimbatore641048 India Entergy Woodland Prairie Ln ConroeTX2390 United States Lovely Professional University Division of Research and Development Jalandhar - Delhi G.T.Road Punjab Phagwara144411 India Kcg College of Technology Department of Mechanical Engineering Karapakkam Tamil Nadu Chennai600097 India Saveetha School of Engineering Simats Department of Research and Innovation Tamil Nadu Chennai602105 India Kcg College of Technology Department of Mechatronics Engineering Karapakkam Tamil Nadu Chennai600097 India

ISBN: (纸本)9798331518981

The advancement in information technology has been on the increase in the recent past with the expansion of text data dissemination in the form of news, medical reports, product reviews, and social media posts among others, the increase in text data has made text mining and classification mandatory. In the last decade a lot of attempts have been undertaken to solve the text classification problems employing machine learning and deep learning approaches both supervised and unsupervised. In this context, our research proposes High-Resolution NLP for Social Healthcare Networks (HiN-TC), a state-of-the-art text classification approach. In our research, data cleaning and normalization are done using Min-Max with Zero-Mean Rescaling Normalization, feature selection is done using Echelon Adaptive Poplar Algorithm, and feature extraction is done using Bi-Consolidation Transformer that captures key patterns in the text. It is supposed to classify the data with good accuracy using Causal Dilated Cosine Architecture and we have optimized it using Precision-Weighted Leadership Navigator for improved performance. This framework is applied to the COVID-19 vaccination Twitter dataset to help get more superior understanding of social healthcare trends. Our methodology demonstrates significant performance improvements, achieving a 98.5% increase in classification accuracy, a 96.3% reduction in text processing time, and a 97.1% boost in scalability. These outcomes suggest the capability of the HiN-TC to deliver a more profound understanding of the social healthcare networks and suggest that the presented framework can be effective for the enhancement of the efficiency and accuracy in the computationally extensive range of the NLP methods and applications for the analysis of the large-scale unstructured text data in healthcare. © 2024 IEEE.

关键词： COVID-19

来源：评论

学校读者我要写书评

暂无评论

A Simulated Kalman Filter (SKF) Approach in Identifying Optimum Speed During Cornering 8th

A Simulated Kalman Filter (SKF) Approach in Identifying Opti...

引用

8th International Conference on Robot Intelligence technology and Applications, RiTA 2020

作者： Mohd Azmi, Kamil Zakwan Zainal, Nurul Afiqah Zakaria, Muhammad Aizzat P. P. Abdul Majeed, Anwar Laboratory Faculty of Manufacturing and Mechatronics Engineering Technology Universiti Malaysia Pahang Pekan Pahang26600 Malaysia Centre for Software Development and Integrated Computing Universiti Malaysia Pahang Pekan Pahang Malaysia

ISBN: (纸本)9789811648021

Safety and human comfort are of paramount importance towards vehicle performance. This study aims to recognize the optimum cornering speed of a two-in wheel vehicle by means of a metaheuristic optimization technique known as Simulated Kalman Filter (SKF). The algorithm is used to minimize the normal forces experienced by the driver based on the identified speed. The system combines a biodynamic model with a two-in-wheel car model. It was demonstrated from the study that the conservative optimum speed of 20 km/h was determined by the SKF algorithm. The outcome of the investigation is non-trivial towards ensuring human comfort as well as safety to the driver. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Optimization

来源：评论

学校读者我要写书评

暂无评论

Minimizing Normal Vehicle Forces Effect During Cornering of a Two In-Wheel Vehicle Through the Identification of Optimum Speed via Particle Swarm Optimization (PSO) 2nd

Minimizing Normal Vehicle Forces Effect During Cornering of ...

引用

2nd International Conference on Innovative technology, Engineering and Sciences, iCITES 2020

作者： Zainal, Nurul Afiqah Azmi, Kamil Zakwan Mohd Zakaria, Muhammad Aizzat P. P. Abdul Majeed, Anwar Laboratory Faculty of Manufacturing and Mechatronics Engineering Technology Universiti Malaysia Pahang Pekan Pahang26600 Malaysia Centre for Software Development and Integrated Computing Universiti Malaysia Pahang Pekan Pahang Malaysia

ISBN: (纸本)9783030709167

Driving comfort is a non-trivial issue as it could pose adverse health issues particularly to those who travel-long distances. In the present study, we identify the optimum speed during cornering in order to reduce the effect of normal vertical forces towards driving experience of a two-in wheel vehicle. A bio-inspired metaheuristic method, namely Particle Swarm Optimization (PSO) was employed to address the objective of the present investigation on a twelve degrees of freedom human biodynamic model that is fused to a two-in-wheel car model. It was established through the PSO algorithm, that the optimal speed during cornering for the given car configuration is approximately 19 km/h. The findings of the present study are essential in ensuring human comfort is not compromised that in turn minimizes possible untoward risk to the driver. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Degrees of freedom (mechanics)

来源：评论

学校读者我要写书评

暂无评论

Engineering Excellence Fabricating an Intelligent and Automated Railway Gate Control System

Engineering Excellence Fabricating an Intelligent and Automa...

引用

2024 International Conference on Innovative Computing, Intelligent Communication and Smart Electrical Systems, ICSES 2024

作者： Ramesh, S. Ramya, M. Johnpaul, S. Sivabalan, A. Jayant, Giri Al-Safarini, Maram Y. Rajalakshmi Engineering College Department of Mechatronics Engineering Chennai India S.A. Engineering College Department of Ece Chennai India Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College Department of Information Technology Chennai India Easwari Engineering college Department of Ece Chennai India Yeshwantrao Chavan College of Engineering Department of Mechanical Engineering Nagpur India Lovely Professional University Division of Research and Development Phagwara India Zarqa University Computer Science Department Zarqa Jordan University of Business and Technology Jeddah21448 Saudi Arabia

ISBN: (纸本)9798331543617

Providing automated railway gate operations at level crossings, as opposed to manually controlled gates, are the primary purpose of this planned effort. To prevent train accidents at unattended railway gates, the NodeMCU microcontroller was used to construct the suggested prototype model. Two reed sensors, one on each side of the gate, can detect whether a train is approaching the gate using this technology. When a train approaches or leaves a level crossing, reed sensors installed in front of the gate detect the train's arrival or departure, and geared DC motors controlled by a microcontroller open and close the gate, correspondingly. These results in a shorter period of time the gate is closed compared to manually controlled gates, which in turn minimizes the likelihood of human mistake. Using an infrared LED and an oscillator circuit, this study also suggests a method for detecting impediments between the gates when trains arrive. The use of metallic conductivity and a squire wave generating circuit for rail track cut detection is also included in this paper. This might help prevent significant railway accidents. We cross-validated the suggested model with regard to the standard Arduino based Railway Gate Control (ARGC) to evaluate its efficiency. The system is referred to as IoTRGCL. © 2024 IEEE.

关键词： Microcontrollers

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：