检索结果-内蒙古大学图书馆

10th IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2024

作者： Yoo, Minjong Park, Kyngmin Kang, Huijune Jang, Youna Lim, Jongsik Ahn, Dal Soonchunhyang University Dept. of Electrical Communication System Engineering Asan Korea Republic of Soonchunhyang University Dept. Information and Convergence Technology Asan Korea Republic of Soonchunhyang University Dept. Electric Engineering Asan Korea Republic of

ISBN: (纸本)9798350364163

This paper analyzes the passband shift of a microstrip line interdigital bandpass filter as a function of the position and diameter of the via holes. It was found that the passband shifted to a lower frequency range when the via hole was placed at the edge of the resonator and its diameter was reduced. To compensate for this passband shift, the length of the resonator was shortened and adjusted to match the intended 3400-3600 MHz bandwidth. The substrate used has a thickness of 0.762 mm, a dielectric constant of 2.97 and a loss tangent of 0.0012. As a result, based on the longest resonator used in this proposed structure, the size was reduced by approximately 13.15% compared to a conventional structure. © 2024 IEEE.

关键词： Bandpass filters

来源：评论

学校读者我要写书评

暂无评论

Offline-Online Actor-Critic for Partially Observable Markov Decision Process

Offline-Online Actor-Critic for Partially Observable Markov ...

引用

2023 International Annual Conference on Complex systems and Intelligent Science, CSIS-IAC 2023

作者： Xuesong, Wang Diyuan, Hou Yuhu, Cheng China University of Mining and Technology Dept. School of Information and Control Engineering Xuzhou China

ISBN: (纸本)9798350309003

Offline-online reinforcement learning combines the advantages of offline learning in terms of sample efficiency and online learning in terms of exploration and trial-and-error. On the other hand, the partial observability of the environment is a challenging issue in reinforcement learning. This paper proposes a Partially Observable Offline-Online Actor-Critic (PO3AC) algorithm. In PO3AC, during both the offline and online training phases, different weighted behavior cloning regularization terms are considered to alleviate the distribution shift. During training, the actor and critic are trained separately, and a recurrent neural network is used to train a state prediction model that predicts the mapping of observation to belief states. Experimental results conducted on the PyBullet physics engine demonstrate that the proposed algorithm outperforms existing algorithms. © 2023 IEEE.

关键词： Reinforcement learning

来源：评论

学校读者我要写书评

暂无评论

Performance Improvement of Transfer Learning-based Motor Fault Diagnosis Using Mix-up Data Considering Data Imbalance

引用

Transactions of the Korean Institute of Electrical Engineers 2023年第2期72卷 255-262页

作者： Choi, Eui-Jin Han, Ji-Hoon Hong, Sun-Ki Dept. of System and Control Engineering Hoseo University Korea Republic of Dept. of Information Control Engineering Hoseo University Korea Republic of

Most of the data obtained for motor fault diagnosis is the data of normal motors. Therefore, the model is trained using normal data collected in the field and fault data collected in experiment. In addtion, transfer learning is used for fast learning convergence. Fault diagnosis performance may be reduced by the number of unbalanced data in each state during transfer learning. In this study, a transfer learning method using mix-up data is proposed to solve this data imbalance. A mix-up is a technique of adding insufficient data to the data with clear decision boundaries, and can be used to balance a large number of normal state data with a small number of fault-state data. The proposed method is compared with GAN, another technique of data augmentation. As a result of the experiment, it was confirmed that the proposed mix-up technique is a method to improve the performance of fault diagnosis. Copyright © The Korean Institute of Electrical Engineers.

关键词： Failure analysis

来源：评论

学校读者我要写书评

暂无评论

Performance Analysis of Transfer-Learning Based Physics-Informed Neural Network for Effective Shape Variation Adaptation with Varying Hyper-parameters

引用

Transactions of the Korean Institute of Electrical Engineers 2023年第10期72卷 1149-1158页

作者： Han, Ji-Hoon Choi, Eui-Jin Hong, Sun-Ki Dept. of System and Control Engineering Hoseo University Korea Republic of Dept. of Information Control Engineering Hoseo University Korea Republic of

One of the most time-consuming parts of designing an electrical device is optimizing the geometry. Optimization involves fine-tuning dimensions such as slot widths and airgap lengths from a base geometry to meet user needs. FEA(Finite Element Analysis) is typically used to verify this performance. However, conventional FEA requires a separate analysis if the analysis geometry is varied even slightly. This causes a very long time consumption, and a transfer learning-based PINN(Physics-Informed Neural Network) is proposed to solve this problem. Since PINNs are at the basic level worldwide, their performance is analyzed according to hyper-parameters such as model parameters (e.g. weights or biases), preprocessing methods, activation functions, and the number of training data to increase their performance. Based on the analyzed hyper-parameters, the performance of the transfer learning-based PINN is verified under the condition of varying the airgap length of the E-I core. © 2023 Korean Institute of Electrical Engineers. All rights reserved.

关键词： Geometry

来源：评论

学校读者我要写书评

暂无评论

High-Speed CBJT Operational Amplifier with Dual-Input-Stage Subclass Input Stage 3

High-Speed CBJT Operational Amplifier with Dual-Input-Stage ...

引用

3rd IEEE International Conference on Problems of Informatics, Electronics and Radio engineering, PIERE 2024

作者： Kuznetsov, Dmitry V. Titov, Alexey E. Sergeenko, Marsel A. Prokopenko, Nikolay N. Don State Technical University Dept. of Scientific Research Dept. of Information Systems and Radio Engineering Rostov-on-Don Russia Southern Federal University Dept. of Automatic Control Systems Rostov-on-Don Russia Don State Technical University Dept. of Information Systems and Radio Engineering Rostov-on-Don Russia

ISBN: (纸本)9798331516321

A significant disadvantage of classical operational amplifiers with two complementary differential stages in parallel (on the inputs) is that here the slew rate has small values (50-80 V/μs). This is due to the non-linear mode of operation of the input differential stage. In this paper, a new circuit technique for slew rate enhancement in CBJT operational amplifiers of this subclass is discussed. Due to the use of special circuitry of the input differential stage, the process of recharging of the integrating correction capacitance in non-inverting and inverting operational amplifier inclusions is forced. This ultimately improves the performance of the operational amplifier in the large-signal mode. The purpose and originality of this paper is to investigate a new circuit solution of operational amplifier, in which by introducing differentiating transient correction circuits, slew rate is improved by two orders of magnitude. This does not require nanometer-scale technological processes, and the operational amplifier transistors can operate with emitter currents on the order of 100 μA. It is possible to build micro-power operational amplifier on the basis of the proposed circuit design technique, including CBJT and CCMOS transistors. Computer simulations show that for micron CBJT silicon technological processes, the SR of the proposed operational amplifier in non-inverting inclusion (at 100% feedback) increases from 80 to 10000 V/μs, i.e., more than two orders of magnitude. © 2024 IEEE.

关键词： Operational amplifiers

来源：评论

学校读者我要写书评

暂无评论

Method for Improving the Performance of Operational Amplifier with HA2700 Microchip Architecture

Method for Improving the Performance of Operational Amplifie...

引用

2024 International Conference on Electrical engineering and Photonics, EExPolytech 2024

ISBN: (纸本)9798350388879

A circuit technique for increasing the maximum output voltage slew rate (SR) of an integrated operational amplifier (OpAmp) with the HA2700 microchip architecture based on the modernization of the input differential stage (DS) is considered. An OpAmp architecture is proposed in which the influence of parasitic capacitances of DS reference current sources and capacitances on the transistor substrate on the SR is minimized. This allows the use of micron technological processes in the fabrication of CBJT OpAmps, which are widely used to improve the radiation resistance of microchips. Computer simulation of the proposed OpAmp is performed, which shows that the SR of the new circuit differs from the SR of the well-known serial OpAmp by more than 40 times and reaches values of about 800 V/μs at the emitter current of the input transistors of the DC in the range of up to 80-100 μA. The developed OpAmp is recommended for practical use in discrete-to-analog filters on switched capacitors. © 2024 IEEE.

关键词： Operational amplifiers

来源：评论

学校读者我要写书评

暂无评论

Study of Covid-19 Spread Prediction in Indonesia using Hybrid Neuro Fuzzy Inference system Model 9

Study of Covid-19 Spread Prediction in Indonesia using Hybri...

引用

9th International Conference on Signal Processing and Intelligent systems, ICSPIS 2023

作者： Supatmi, Sri Fitriawati, Mia Dhaniawaty, Rani Puspita Pratiwi, Vitta Luckyardi, Senny Universitas Komputer Indonesia Dept. of Master of Information System Bandung Indonesia Universitas Komputer Indonesia Dept. of Information System Bandung Indonesia Universitas Komputer Indonesia Dept. of Civil Engineering Bandung Indonesia Universitas Komputer Indonesia Dept. of Marketing Management Bandung Indonesia

ISBN: (纸本)9798350369922

COVID-19 is a new virus that was shown at the end of the year 2019 until now. This study proposes a new model to predict the spreading of COVID-19 using the Hybrid Neuro-Fuzzy Inference system (HN-FIS) in the next three months. The proposed model combines the Neural Network (NN) and Fuzzy Inference system (FIS). In the previous study, HN-FIS successfully predicted the flood disaster with more than 90% accuracy. Data collected for COVID-19 prediction come from the National database and data from a social media communication. In this study, the prediction of the spreading of COVID-19 employs four parameters: the number of populations, incubation period, environmental factors, and age. The case study took place in West Java Province, Indonesia. We performed three models to determine the best model fit: NN, FIS, and HN-FIS. The results of this study present a set of recommendations models for the people still fighting to face the COVID-19 pandemic, and the people can avoid the places with a higher spreading of COVID-19. © 2023 IEEE.

关键词： COVID-19

来源：评论

学校读者我要写书评

暂无评论

Opportunities and Challenges of Distributed Ledger Technology in Cross-Border Financial Transactions 12

Opportunities and Challenges of Distributed Ledger Technolog...

引用

12th International Conference on Cyber and IT Service Management, CITSM 2024

作者： Zururi, Achmad Oganda, Fitra Putri Sihotang, Sondang Visiana Rahardja, Untung Sunarya, Po Abas University of Raharja Dept. of Informatics Engineering Tangerang Indonesia University of Raharja Dept. of Information System Tangerang Indonesia University of Raharja Dept. of Digital Business Tangerang Indonesia University of Raharja Tangerang Dept. of Business Management Indonesia

ISBN: (纸本)9798331528799

This research investigates the adoption of Dis- tributed Ledger Technology (DLT) in cross-border financial transactions, driven by the increasing need for more efficient, secure, and transparent methods in a globalized financial market. Traditional cross-border transactions often face challenges such as delays, high costs, and security risks, making DLT a promising solution with its ability to provide secure, immutable, and trans- parent transaction records. The study focuses on understanding how trust, security, perceived usefulness, and perceived ease of use influence the adoption of DLT. Conducted with 150 respondents, primarily young adults from Jakarta and Tangerang, the research employed Structural Equation Modeling-Partial Least Squares (SEM-PLS) to test six hypotheses. The results of this study indicate that both Trust and Security have a positive and significant impact on the adoption of Distributed Ledger Technology (DLT) in cross-border financial transactions. Utilizing the Partial Least Squares Structural Equation Modeling (PLS- SEM) method, addressing the growing need for more efficient, secure, and transparent methods in global finance. These findings hold significant practical implications for financial institutions, suggesting that enhancing trust and security in Distributed Ledger Technology (DLT) systems can lead to broader adoption and ultimately improve the efficiency and transparency of cross- border financial transactions. These findings underscore the critical importance of trust and security in promoting DLT adoption in cross-border transactions, suggesting that efforts to enhance these factors will be crucial for broader acceptance of DLT. Future research should explore additional variables, such as regulatory frameworks and cultural factors, that may also affect DLT adoption in different regions. © 2024 IEEE.

关键词： Distributed ledger

来源：评论

学校读者我要写书评

暂无评论

Comparative Models of Price Estimation Using Multiple Linear Regression and Random Forest Methods

Comparative Models of Price Estimation Using Multiple Linear...

引用

2023 International Conference on Computer Science, information Technology and engineering, ICCoSITE 2023

作者： Crosss Sihombing, Denny Jean Othernima, Desi C. Manurung, Jonson Sagala, Jijon Raphita Atma Jaya Catholic University of Indonesia Faculty of Engineering Dept. Information System Jakarta Indonesia STMIK Pelita Nusantara Dept. Software Engineering Medan Indonesia STMIK Pelita Nusantara Dept. Information Technology Medan Indonesia

ISBN: (纸本)9798350320954

The house is one of the essential humans needs as a place to gather and do activities with family, and shelter, as well as a means of investment. The growth rate of people's demand for housing, especially houses in an area, is influenced by the rate of population growth in that area. Some regions in Indonesia with a reasonably high population growth rate are Jakarta, Bogor, Depok, Tangerang, and Bekasi (Jabodetabek). On the other hand, property entrepreneurs must be able to project house prices because businesses engaged in the property sector are currently very competitive. This study aims to model and compare several machine learning methods to estimate house prices in Jabodetabek based on facilities, year of construction, location, land and building area, number of rooms, condition of house construction, and legality documents. This modeling uses Multiple Linear Regression and Random Forest methods. The results of the modeling evaluation where the Random Forest model has an accuracy rate of 95.6%, while the Multiple Linear Regression model has an accuracy rate of 75%. © 2023 IEEE.

关键词： Multiple linear regression

来源：评论

学校读者我要写书评

暂无评论

Enhancing Website Design: The Implementation of Sequential Monadic Concept Testing on User Interface and User Experience Design 5

Enhancing Website Design: The Implementation of Sequential M...

引用

5th International Conference on Advancement in Data Science, E-Learning and information systems, ICADEIS 2023

作者： Praja, Fritzie Primananda Adi Afwani, Royana Sutoyo, Edi Suryani, Embun Diswandi, Diswandi University of Mataram Faculty of Engineering Dept. Informatics Engineering Indonesia University of Mataram Faculty of Industrial Engineering Dept. Information System Indonesia University of Mataram Faculty of Economics and Business Dept. Management Indonesia

ISBN: (纸本)9798350303414

Websites have become crucial in today's digital landscape as they transform traditional systems into computerized platforms. User Interface (UI) and User Experience (UX) design are vital in creating user-friendly websites that meet functional and non-functional requirements. Concept testing, a research strategy commonly used in marketing, can be applied to UX research to enhance a website design. This study aimed to improve the financial management website of BUMDes Putri Nyale Kuta by implementing sequential monadic concept testing on UI and UX design. By employing this method, the study overcame limitations in the number of respondents and obtained valuable feedback. Additionally, we chose to use sequential monadic with a qualitative approach to gain rich insights from the process results, considering various empathic aspects in line with the website design development method using design thinking from previous research [1]. The website design achieved an overall concept testing score of 4.6 out of 5 for positive reactions, usefulness, trust, liking, and needs, indicating successful improvements. The findings demonstrate the effectiveness of concept testing in enhancing website design and emphasize the importance of considering user expectations in the early stages of development. This study contributes to existing research on UI and UX design in the context of website development, highlighting the potential of concept testing as a valuable tool for enhancing human and user-centric solutions. © 2023 IEEE.

关键词： Web Design

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：