检索结果-内蒙古大学图书馆

7th International Conference on instrumentation, control, and Automation, ICA 2021

作者： Aji, Nurvita Ekawati, Estiyanti Haq, Irsyad Nashirul Institut Teknologi Bandung Faculty of Industrial Engineering Instrumentation and Control Department Bandung Indonesia

ISBN: (纸本)9781665432955

Referring to National Energy Policy or Government Regulation No. 79/2014, Indonesia has set out several plans to increase the New and Renewable Energy (NRE) share in the primary energy mix to 23% by 2025 and 31% by 2050. Ocean wave energy is one of the potential renewable energy sources. This study presents the simulation of ocean wave energy conversion of Indonesian sea waves, specifically along the west coast of Sumatra, the southern coasts of Java, and Bali waters. The Wave Energy Converter Simulator (WEC-Sim) simulated five hot spots of high wave energy using the floating-point absorber buoy RM3 model. These five hotspots are South Pagai Island II (101.25°E-4.25°S), Enggano Island (102.25°E-5.5°S), Cilacap (109.06°E-7.94°S), Jember (113.68°E-8.56°S), and Bali (115°E-8.75°S). RM3 is the third reference model of wave energy converter developed by The U.S. department of Energy (DOE), The National Renewable Energy Laboratory (NREL), and The Sandia National Laboratory (SNL). Meanwhile, the WEC-Sim software uses the Cummins equation in the 6 degrees of freedom (DOF) modeling process. In this simulation, the Pierson-Moskowitz (PM) spectrum was used to model irregular waves. The WEC's power take-off (PTO) mechanism was simulated as a hydraulic system where the hydraulic power absorbed depends on the differential pressure of the hydraulic piston and the piston area. This simulation used the rotary electrical generator with an energy conversion efficiency of 98% in electricity generation. According to the selected location, the simulation was running for 400 seconds of time simulation and 0.01 seconds of time step with the predefined parameters, such as significant wave height and wave period. The average value of electrical powers generated during the simulation were 15.85, 15.53, 18.13, 14.10, and 15.69 kilowatts (kW) while the total of accumulated electrical powers were 634, 621, 725, 564, and 627 megawattss (MW) for South Pagai Island II, Enggano Island, Cilacap, Jemb

关键词： Wave energy conversion

来源：评论

学校读者我要写书评

暂无评论

Evaluation of Theoretical and Empirical Log-Normal Models for Wi-Fi Fingerprint Mapping in Indoor Positioning

Evaluation of Theoretical and Empirical Log-Normal Models fo...

引用

IEEE International Conference on Artificial Intelligence in engineering and Technology (IICAIET)

作者： Mohamed Aizad Bin Mohamed Ghazali Aroland Kiring Lyudmila Mihaylova Hoe Tung Yew Seng Kheau Chung Yan Yan Farm Faculty of Engineering Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia Department of Automatic Control and System Engineering University of Sheffield Sheffield UK

ISBN: (数字)9798350389692

ISBN: (纸本)9798350389708

This paper evaluates both the theoretical and empirical log-normal models for Wi-Fi fingerprint mapping in indoor positioning systems. Wi-Fi fingerprinting, leveraging the ubiquitous IEEE 802.11 protocol, offers a practical solution for indoor localization where Global Positioning system (GPS) is ineffective. It involves generating empirical data by systematically measuring Wi-Fi Received Signal Strength (RSS) within a complex indoor environment and formulating a log-normal path loss model to predict signal behavior. A comparative analysis was conducted between the theoretical model, calibrated with empirical RSS data, and the actual RSS measurements. The results showed that while the theoretical model captured overall signal propagation trends, the empirical data revealed variations due to multipath effects and environmental obstacles. It demonstrated the practical use of Wi-Fi fingerprint mapping, theoretical modeling, and comparative analysis. The findings underscore the importance of empirical validation in refining theoretical models and optimizing deployment strategies for accurate and reliable indoor positioning. Future research should focus on mitigating multipath effects and enhancing the theoretical model accuracy through optimized access point (AP) placement and advanced signal processing techniques.

关键词： Analytical models Accuracy Fingerprint recognition Signal processing Reliability theory Market research Data models Mathematical models Wireless fidelity Global Positioning system

来源：评论

学校读者我要写书评

暂无评论

Parallel Byzantine fault tolerance method for blockchain

Parallel Byzantine fault tolerance method for blockchain

引用

International Conference on Artificial Intelligence, Blockchain, Computing and Security, ICABCS 2023

作者： Dubey, Kumar Pradyot Gnanaprakasam, C.N. Khan, Ihtiram Raza Sadik, Md Shibli Al-Farhani, Liwa H. Ray, Samrat Department of Computer and Information Science Jagadguru Ram Bhadracharya Divyanga University UP Chitrakoot India Department of Electronics and Instrumentation Engineering St. Joseph’s College of Engineering Tamilnadu Chennai India Computer Science Department Jamia Hamdard Delhi India University of Portsmouth Portsmouth United Kingdom System Analysis Control and Information Processing Dep Academy of Engineering RUDN University Moscow Russia The Institute of Industrial Management Economics and Trade Peter The Great Saint Petersburg Polytechnic University Russia

ISBN: (纸本)9781032669663

Enterprise-focused blockchain applications that offer safe, anonymous, and immutable transactions are growing as blockchain technology matures. Traditional blockchain architecture has low performance and scalability, making it unsuitable for enterpriselevel applications with high concurrency and massive data. This paper studies and proposes a simplified Byzantine fault-tolerant (SBFT) consensus algorithm to improve consensus stage efficiency, a Task parallel smart contract model to maximise multi-core system parallel efficiency, and an improved blockchain system architecture to reflect the lightweight, low coupling nature of blockchain technology. It facilitates corporate application secondary development and the ParaChain blockchain and smart contract technology. Experimental verification compares the parallelization - based ParaChain blockchain’s TPS and scalability. PBFT-based blockchain systems have been greatly improved. © 2024 The Author(s).

关键词： Smart contract

来源：评论

学校读者我要写书评

暂无评论

A Comparison of Methods Recovering Signals from Non-Uniform Samples

引用

IFAC-PapersOnLine 2024年第9期58卷 143-148页

作者： Ondrej Mihálik Michaela Mesárošová Jakub Čelko Tomáš Sýkora Zdeněk Bradáč Department of Control and Instrumentation Faculty of Electrical Engineering Brno University of Technology Brno Czech republic Central European Institute of Technology Brno University of Technology Brno Czech republic

Band-limited signals play a vital role in signal acquisition, transmission, processing and storage for decades. However, their recovery from non-uniformly spaced samples is still subject to discussion. There are multiple authors advancing different approaches and the user has to deal with an abundance of literature. Therefore, this paper offers a brief theoretical review of the most promising reconstruction methods. We also consider the importance of regularisation if the signal samples are noisy, which, surprisingly, seems to be neglected by many authors. Subsequently, the suitability of the methods is illustrated using an example of a real-world signal. Assessment of accuracy and speed of the methods is repeated for varying noise levels in signal amplitude, and for increasing degree of non-uniformities in sampling time. Cubic spline methods and sinc function reconstruction offer the best compromise between speed and accuracy for the concrete signal tested in this paper.

关键词： bandlimited signal resampling regularisation reconstruction

来源：评论

学校读者我要写书评

暂无评论

Raspberry Pi Bee Health Monitoring Device

arXiv

引用

arXiv 2023年

作者： Nevláčil, Jakub Bilík, Šimon Horák, Karel Department of Control and Instrumentation Faculty of Electrical Engineering and Communication Brno University of Technology Brno Czech Republic

A declining honeybee population could pose a threat to a food resources of the whole world one of the latest trend in beekeeping is an effort to monitor a health of the honeybees using various sensors and devices. This paper participates on a development on one of these devices. The aim of this paper is to make an upgrades and improvement of an in-development bee health monitoring device and propose a remote data logging solution for a continual monitoring of a beehive. © 2023, CC BY.

关键词： Health risks

来源：评论

学校读者我要写书评

暂无评论

Application of Deep Learning Models for Vocal Cords Detection in Laryngoscopic Imagery 28th

Application of Deep Learning Models for Vocal Cords Detectio...

引用

28th International Conference on Knowledge Based and Intelligent information and engineering systems, KES 2024

作者： Vrba, Jan Steinbach, Jakub Cejnek, Matouš Jirsa, Tomáš Urbániová, Zuzana Department of mathematics informatics and cybernetics University of Chemistry and Technology in Prague Technická 5 Praha 6-Dejvice Prague166 28 Czech Republic Department of Instrumentation and Control Engineering Faculty of Mechanical Engineering Czech Technical University in Prague Technická 1902/4 Praha 6160 00 Czech Republic Department of Otorhinolaryngology 3rd Faculty of Medicine Faculty Hospital Královské Vinohrady Charles University Ruská 87 Praha 10 Prague100 00 Czech Republic

The accurate location of vocal cords is crucial in medical imaging applications for diagnostic and therapeutic purposes. In this study, we evaluated the performance of state-of-the-art object detection models, including the YOLO, EfficientDet D1, Faster RCNN and Single Shot Detector architectures, for the task of vocal cord detection. Using a data set of annotated medical images, we conducted comprehensive experiments to compare the models in terms of mean average precision (mAP) and inference time. Our results indicate that YOLOv8m achieved the highest performance, with a mAP@[0.5:0.95] of 0.778 and an inference time of 4.7 milliseconds. EfficientDet D1, Faster R-CNNs, and Single Shot Detectors trailed behind with slightly lower mAP scores. These findings highlight the efficacy of YOLOv8m for vocal cord localization on the utilized dataset. In addition, our study provides valuable information for the selection of suitable object detection models in medical imaging applications, facilitating better diagnosis and treatment planning in laryngology and otolaryngology. © 2024 The Authors.

关键词： Medical imaging

来源：评论

学校读者我要写书评

暂无评论

Using a Smartphone to Assist in Physical Therapy 7

Using a Smartphone to Assist in Physical Therapy

引用

7th International Conference on engineering, Applied Sciences and Technology, ICEAST 2021

作者： Cheypoca, Thepjit Anuntahirunrat, Kongsak King Mongkut's Institute of Technology Ladkrabang Faculty of Engineering Department of Instrumentation and Control Engineering Bangkok10520 Thailand

ISBN: (纸本)9781665441223

In this paper, the use of accelerometer, gyroscope, magnetometer and GPS. A basic sensors available on smartphones, in the treatment of paresis symptoms, patients as a way of encouraging physical therapy on their own without having to travel to the hospital. And it is a burden to doctors and physiotherapists, making it possible to serve a large number of patients will explored. It also provides therapeutic information to improve individual physical activity. A smartphone that attached to the patient at a given *** sends values from sensors to databases in the cloud. The data provided by the database will analyze and diagnosed by doctors and physiotherapists. © 2021 IEEE.

关键词： Smartphones

来源：评论

学校读者我要写书评

暂无评论

Integrating Blockchain Technology in a Cyber Physical system to Secure Data

Integrating Blockchain Technology in a Cyber Physical System...

引用

International Conference on control systems and Computer Science (CSCS)

作者： Balaban Bèatrix-May Sacală Ioan Ştefan Petrescu-Niţă Alina-Claudia Niţă Răzvan Department of System Engineering Faculty of Automatic Control and Computers Politehnica University of Bucharest Romania

Considering the constant growth and evolution of technology, being able to secure data is a challenge. This is why researchers find this a top research topic. Cyber-Physical systems are complex, large-scale systems that can be found in domains like healthcare, transportation, industrial controls systems or smart grids. Having many components that interact with each other, we can observe here the challenge in maintaining a secure environment for the data as data tampering or data extraction can occur, for example, in the actual transportation of data from one device to another. The main focus of this paper is to give an answer if blockchain technology provides a solution in building a secure network. We give a short review of the related work regarding blockchain integration in large-scale systems like Cyber-Physical systems. It was also briefly analyzed the layered structure of a blockchain and discussed some solutions for each layer. We then discussed about consensus algorithms for validation and authentication process. In general, consensus algorithms are implemented to assure the validation process of the nodes in a network. In this paper we tried to analyze and propose a model that offers an extra layer of security by adding the authentication step. In this way, the nodes that are validated are also considered trusted nodes in the network.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Hybrid Grey Wolf and Dipper Throated Optimization in Network Intrusion Detection systems

引用

Computers, Materials & Continua 2023年第2期74卷 2695-2709页

作者： Reem Alkanhel Doaa Sami Khafaga El-Sayed M.El-kenawy Abdelaziz A.Abdelhamid Abdelhameed Ibrahim Rashid Amin Mostafa Abotaleb B.M.El-den Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Communications and Electronics Delta Higher Institute of Engineering and TechnologyMansoura35111Egypt Department of Computer Science Faculty of Computer and Information SciencesAin Shams UniversityCairo11566Egypt Department of Computer Science College of Computing and Information TechnologyShaqra University11961Saudi Arabia Computer Engineering and Control Systems Department Faculty of EngineeringMansoura UniversityMansoura35516Egypt Department of Computer Science University of Engineering and TechnologyTaxilaPakistan Department of System Programming South Ural State UniversityChelyabinsk454080Russia

The Internet of Things(IoT)is a modern approach that enables connection with a wide variety of devices *** to the resource constraints and open nature of IoT nodes,the routing protocol for low power and lossy(RPL)networks may be vulnerable to several routing ***’s why a network intrusion detection system(NIDS)is needed to guard against routing assaults on RPL-based IoT *** imbalance between the false and valid attacks in the training set degrades the performance of machine learning employed to detect network ***,we propose in this paper a novel approach to balance the dataset classes based on metaheuristic optimization applied to locality-sensitive hashing and synthetic minority oversampling technique(LSH-SMOTE).The proposed optimization approach is based on a new hybrid between the grey wolf and dipper throated optimization *** prove the effectiveness of the proposed approach,a set of experiments were conducted to evaluate the performance of NIDS for three cases,namely,detection without dataset balancing,detection with SMOTE balancing,and detection with the proposed optimized LSHSOMTE *** results showed that the proposed approach outperforms the other approaches and could boost the detection *** addition,a statistical analysis is performed to study the significance and stability of the proposed *** conducted experiments include seven different types of attack cases in the RPL-NIDS17 *** on the 2696 CMC,2023,vol.74,no.2 proposed approach,the achieved accuracy is(98.1%),sensitivity is(97.8%),and specificity is(98.8%).

关键词： Metaheuristics grey wolf optimization dipper throated optimization dataset balancing locality sensitive hashing SMOTE

来源：评论

学校读者我要写书评

暂无评论

Study on the Applicability Considering on the Relationship between Shape and Flexibility of the Adsorption Gripper Tip 7

Study on the Applicability Considering on the Relationship b...

引用

7th International Conference on control and Robotics engineering, ICCRE 2022

作者： Ofuchi, Akira Fujiwara, Daisuke Iizuka, Kojiro Shibaura Institute of Technology Graduate School of Systems Engineering and Science Saitama Japan Suwa University of Science Faculty of Engineering Department of Mechanical & Electrical Engineering Chino Japan Shibaura Institute of Technology Department of Machinery and Control System Saitama Japan

ISBN: (纸本)9781665468404

This study considers automatic scallop harvesting using the drone with the robot arm as the new scallop fishery. The fishery needs the dedicated gripper attaching the robot arm. This study judges the adsorption gripper as the dedicated gripper. The adsorption gripper must push itself to the object during gripping motion. If the pushing force is too large, there are some problems with the grasping. This study focuses on the flexibility of the gripper tip contacting object to solve those problems. Then, we investigate the applicability considering on the relationship between shape and flexibility of the adsorption gripper tip from the experiment. From these considerations, the dedicated gripper has been developed. © 2022 IEEE.

关键词： Adsorption

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：