检索结果-内蒙古大学图书馆

31st Telecommunications Forum, TELFOR 2023

作者： Zekovic, Amela Academy of Technical and Art Applied Studies Department School of Electrical and Computer Engineering Belgrade Serbia

ISBN: (纸本)9798350303131

This paper gives a survey of Internet of Things (IoT) solutions using Raspberry Pi (RPi) Single Board computer (SBC) and methods of Artificial Intelligence (AI) area - computer Vision (CV). Solutions for several areas of IoT applications are presented and compared. An overview of the used hardware, software, CV methods, and CV algorithms are given. © 2023 IEEE.

关键词： computer vision

来源：评论

学校读者我要写书评

暂无评论

Secured Cyber Security Algorithm for Healthcare System Using Blockchain Technology

引用

Intelligent Automation & Soft Computing 2023年第2期35卷 1889-1906页

作者： D.Doreen Hephzibah Miriam Deepak Dahiya Nitin C.R.Rene Robin Computational Intelligence Research Foundation(CIRF) Chennai600023TamilnaduIndia College of Computer and Information Sciences Majmaah UniversityMajmaah11952Saudi Arabia Department of Electrical Engineering and Computer Science College of Engineering and Applied ScienceUniversity of CincinnatiCincinnati45221OHUnited States Department of Computer Science and Engineering Sri Sairam Engineering CollegeChennai600044TamilnaduIndia

Blockchain technology is critical in cyber *** most recent cryptographic strategies may be hacked as efforts are made to build massive elec-tronic *** of the ethical and legal implications of a patient’s medical data,cyber security is a critical and challenging problem in *** image secrecy is highly vulnerable to various types of *** a result,designing a cyber security model for healthcare applications necessitates extra caution in terms of data *** resolve this issue,this paper proposes a Lionized Golden Eagle based Homomorphic Elapid Security(LGE-HES)algorithm for the cybersecurity of blockchain in healthcare *** blockchain algorithm preserves the security of the medical image by performing hash *** execution of this research is carried out by MATLAB *** suggested fra-mework was tested utilizing Computed Tumor(CT)pictures and MRI image data-sets,and the simulation results revealed the proposed model’s profound *** the simulation,94.9%of malicious communications were recognized and identiﬁed effectively,according to the total outcomes *** suggested model’s performance is also compared to that of standard approaches in terms of Root Mean Square Error(RMSE),Peak Signal to Noise Ratio(PSNR),Mean Square Error(MSE),time complexity,and other factors.

关键词： Healthcare system cybersecurity security data sharing blockchain

来源：评论

学校读者我要写书评

暂无评论

Efficiently Harvesting Infrared Energy: An Optimization Strategy for Rectenna Design

Efficiently Harvesting Infrared Energy: An Optimization Stra...

引用

2023 Photonics North, PN 2023

作者： Elsharabasy, Ahmed Y. Bakr, Mohamed H. Jamal Deen, M. Cairo University Facutly of Engineering Departement of Engineering Mathematics and Physics Giza Egypt McMaster University Electrical and Computer Engineering Department HamiltonON Canada

ISBN: (纸本)9798350326734

In this study, we propose an optimization strategy for designing efficient rectennas for harvesting infrared (IR) energy. The rectenna is primarily composed of a rectifying component, such as a diode, and an antenna. In the IR range, the ultra-high frequency alternating current signal captured by the antenna terminals must be transformed into a useful direct current signal efficiently. The metal-insulator-metal (MIM) diode, due to its ultra-fast quantum tunneling as a conduction mechanism, is the most suitable option for operation in these IR ranges. Matching the impedance between the antenna and the diode, addressing the nonlinearity of the diode, and dealing with the effect of capacitance on the device's cutoff frequency are challenges that need to be overcome to achieve an efficient rectenna. An optimization algorithm is applied to enhance the rectenna's performance by taking into consideration these challenges. © 2023 IEEE.

关键词： Energy harvesting

来源：评论

学校读者我要写书评

暂无评论

Priority queueing system with many types of requests and restricted processor sharing

引用

Journal of Ambient Intelligence and Humanized Computing 2023年第9期14卷 12651-12662页

作者： D’Apice, Ciro Dudin, Alexander Dudin, Sergey Manzo, Rosanna Dipartimento di Scienze Aziendali - Management and Innovation Systems University of Salerno Via Giovanni Paolo II 132 Salerno Fisciano84084 Italy Department of Applied Mathematics and Computer Science Belarusian State University 4 Nezavisimosti Ave. Minsk220030 Belarus Department of Information Engineering Electrical Engineering and Applied Mathematics University of Salerno Via Giovanni Paolo II 132 Salerno Fisciano84084 Italy

A priority queueing model with many types of requests and restricted processor sharing is considered. A novel discipline of requests admission and service is proposed. This discipline assumes restriction of the bandwidth (capacity) of the server and the number of requests that can receive service in the system at the same time. This discipline is some kind of realistic hybrid of the traditional discipline of service in a multi-server system and the discipline of the limited processor sharing. The requests of the highest priority can push out from the service the low priority requests. Therefore, the important problem is fitting of the number of requests that can receive service at the same time to the bandwidth of the server. This problem is solved via construction and analysis of a multi-dimensional Markov chain describing operation of the system under any fixed set of the system parameters. © 2022, The Author(s).

关键词： Bandwidth

来源：评论

学校读者我要写书评

暂无评论

MINIMUM-RANK POSITIVE SEMIDEFINITE MATRIX COMPLETION WITH CHORDAL PATTERNS AND APPLICATIONS TO SEMIDEFINITE RELAXATIONS

Applied Set-Valued Analysis and Optimization

引用

applied Set-Valued Analysis and Optimization 2023年第2期5卷 265-283页

作者： Jiang, Xin Sun, Yifan Andersen, Martin S. Vandenberghe, Lieven Department of Industrial and Systems Engineering Lehigh University BethlehemPA18015-1582 United States Department of Computer Science Stony Brook University Stony BrookNY11794-2424 United States Department of Applied Mathematics and Computer Science Technical University of Denmark Kongens Lyngby Denmark Department of Electrical and Computer Engineering University of California Los Angeles Los AngelesCA90095 United States

We present an algorithm for computing the minimum-rank positive semidefinite completion of a sparse matrix with a chordal sparsity pattern. This problem is tractable, in contrast to the minimumrank positive semidefinite completion problem for general sparsity patterns. We also present a similar algorithm for the Euclidean distance matrix completion with minimum embedding dimension. The two algorithms use efficient recursions over a clique tree associated with the chordal sparsity pattern. As an application, we use the minimum-rank completion method as a rounding technique to convert the solution of a sparse semidefinite optimization problem with non-unique solutions to an optimal solution of lower rank. In experiments with semidefinite relaxations of optimal power flow problems, the minimum-rank completion often results in solutions of lower rank than the solutions computed by interior-point solvers. ©2023 applied Set-Valued Analysis and Optimization.

关键词： Electric load flow

来源：评论

学校读者我要写书评

暂无评论

A Robust Evolutionary Gravity Neocognitron Neural Network Model for Construction Cash Flow Prediction in Complex Project Management

A Robust Evolutionary Gravity Neocognitron Neural Network Mo...

引用

2024 IEEE International Women in engineering (WIE) Conference on electrical and computer engineering, WIECON-ECE 2024

作者： Joseph, X.Feix Selvaraj, G. Babu, M. Arumuga Banu, A. Shajitha Bhuvanesh, A. Keerthanadevi, R. Loyola Institute of Technology and Science Department of Electrical and Electronics Engineering Kanyakumari India Ramco Institute of Technology Department of Mathematics Rajapalayam India Christ the King Engineering College Department of Electrical and Electronics Engineering Coimbatore India Sri Eshwar College of Engineering Department of English Coimbatore India Psn College of Engineering and Technology Department of Electrical and Electronics Engineering Tirunelveli India Psn College of Engineering and Technology Department of Computer Science and Engineering Tirunelveli India

ISBN: (纸本)9798331535476

In order to keep expenses in check while building projects are being carried out, accurate cash flow forecasting is crucial. The project's unique features and risk considerations make it challenging, despite extensive study, to develop a reliable model for predicting future cash flows. Furthermore, both sequence and non-sequence elements have a significant influence on the building projects' cash flow. As a result, the authors of this research suggested a new inference model based on artificial intelligence (AI) called Evolutionary Gravity Neocognitron Neural Network (EG-NN). This model takes project complexity into account and attempts to handle non-sequence elements in time series issues. By attaining the highest values of 2.35%, MAPE of 5.65%, MAE of 2.03%, and coefficient of determination of 0.99, the experimental findings on thirteen construction projects have validated the EG-NN as the top model for cash flow forecasting. When compared to other AI-based inference models, the statistical result shows that cash flow forecasting can be improved by at least 14.1 percent in terms of root-mean-square error (RMSE) and 15.2 percent in terms of mean absolute error (MAE). Managers may benefit from the EG-NN network model's ability to predict and manage construction projects' cash flow. © 2024 IEEE.

关键词： Project management

来源：评论

学校读者我要写书评

暂无评论

Multidimensional image morphing-fast image-based rendering of open 3D and VR environments

引用

虚拟现实与智能硬件(中英文) 2025年第2期7卷 155-172页

作者： Simon SEIBT Bastian KUTH Bartosz von Rymon LIPINSKI Thomas CHANG Marc Erich LATOSCHIK Game Tech Laboratory Faculty of Computer ScienceNuremberg Institute of TechnologyNuremberg 90489Germany Department of Electrical Engineering and Computer Science Coburg University of Applied Sciences and ArtsCoburg 96450Germany Human-Computer Interaction Group Institute of Computer ScienceUniversity of WuerzburgWuerzburg 97074Germany

Background In recent years,the demand for interactive photorealistic three-dimensional(3D)environments has increased in various fields,including architecture,engineering,and ***,achieving a balance between the quality and efficiency of high-performance 3D applications and virtual reality(VR)remains *** This study addresses this issue by revisiting and extending view interpolation for image-based rendering(IBR),which enables the exploration of spacious open environments in 3D and ***,we introduce multimorphing,a novel rendering method based on the spatial data structure of 2D image patches,called the image *** this approach,novel views can be rendered with up to six degrees of freedom using only a sparse set of *** rendering process does not require 3D reconstruction of the geometry or per-pixel depth information,and all relevant data for the output are extracted from the local morphing cells of the image *** detection of parallax image regions during preprocessing reduces rendering artifacts by extrapolating image patches from adjacent cells in *** addition,a GPU-based solution was presented to resolve exposure inconsistencies within a dataset,enabling seamless transitions of brightness when moving between areas with varying light *** Experiments on multiple real-world and synthetic scenes demonstrate that the presented method achieves high"VR-compatible"frame rates,even on mid-range and legacy hardware,*** achieving adequate visual quality even for sparse datasets,it outperforms other IBR and current neural rendering *** Using the correspondence-based decomposition of input images into morphing cells of 2D image patches,multidimensional image morphing provides high-performance novel view generation,supporting open 3D and VR ***,the handling of morphing artifacts in the parallax image regions remains a topic for future resea

关键词： computer graphics 3D real-time rendering computer vision Image morphing Virtual reality

来源：评论

学校读者我要写书评

暂无评论

An Isolated Three-Phase AC-AC Converter With Bipolar Output Voltage

引用

IEEE Transactions on Industrial Electronics 2024年第9期71卷 10050-10063页

作者： Ahmed, Hafiz Furqan Khan, Ashraf Ali Akbar, Fazal Islam, Shirazul Elkhateb, Ahmad National Sun Yat-sen University Department of Electrical Engineering Kaohsiung804 Taiwan Memorial University of Newfoundland Department of Electrical and Computer Engineering Faculty of Engineering and Applied Science St. John'sNLA1C 5S7 Canada University of Edinburgh EdinburghEH9 3JL United Kingdom Qatar University Department of Electrical Engineering Doha2713 Qatar BelfastBT9 5AH United Kingdom

This article proposes a new topology of a three-phase high-frequency transformer (HFT) isolated bipolar ac-ac converter. It has a simple circuit topology consisting of nine active switches, three HFTs with primary and secondary series capacitors, and output LC filters. It can generate both noninverting and inverting outputs with a symmetric bipolar voltage gain of pm nd, where n is the turns ratio of the transformer and d is the switch duty cycle. The proposed converter can provide step-down output by setting the turns ratio to unity;however, step-up output operation can also be achieved by increasing n beyond one when required by a particular application. The proposed converter integrates HFT-based isolation and, therefore, can eliminate the sizeable low-frequency transformer for applications requiring grid interface. Owing to the use of series-blocking capacitors, the HFT is devoid of any line-frequency component. A safe-commutation-based switch modulation strategy is developed to avoid switch current and voltage overshoots. The proposed converter is well suitable for application as a three-phase dynamic voltage restorer. The inverting and noninverting operations can inject the antiphase and same-phase series voltages to mitigate grid voltage swell and sag, respectively. Moreover, the additional line-frequency isolation and voltage injection transformers can be saved. In-depth circuit analysis and operation are provided with proposed switch modulation strategies together with component design guidelines. Finally, the hardware measurements are taken on a laboratory-built circuit to confirm the operation of the proposed converter. © 1982-2012 IEEE.

关键词： Pulse width modulation

来源：评论

学校读者我要写书评

暂无评论

Energy Landscape of the European Union: Assessing Convergence and Import Dependency 14

Energy Landscape of the European Union: Assessing Convergenc...

引用

14th International Conference on Advanced computer Information Technologies, ACIT 2024

作者： Dziubanovska, Nataliia Maslii, Vadym Hural, Iryna West Ukrainian National University Department of Applied Mathematics Ternopil Ukraine West Ukrainian National University Department of Computer Engineering Ternopil Ukraine

ISBN: (纸本)9798350350036

This research aims to analyze energy convergence and import dependency in European Union (EU) countries. By applying cluster analysis, the authors identified three main groups of EU countries based on their level of energy efficiency, each characterized by distinct energy landscapes. Using multifactor regression analysis, the study examined the influence of various factors such as the diversity index of energy supply, energy self-reliance, share of renewable energy sources, final energy consumption, and production energy on countries' dependency levels on energy imports. The results confirmed the significance of these factors in reducing countries' energy dependency. This study contributes to understanding the dynamics of energy policies in EU countries and directs attention towards developing more resilient and efficient energy strategies. © 2024 IEEE.

关键词： Clean energy

来源：评论

学校读者我要写书评

暂无评论

Curl Constraint-Preserving Reconstruction and the Guidance it Gives for Mimetic Scheme Design

引用

Communications on applied mathematics and Computation 2023年第1期5卷 235-294页

作者： Dinshaw S.Balsara Roger Käppeli Walter Boscheri Michael Dumbser Physics and ACMS Departments University of Notre DameNotre DameINUSA Seminar for Applied Mathematics(SAM) Department of MathematicsETH ZürichCH-8092 ZurichSwitzerland Department of Mathematics and Computer Science University of FerraraFerraraItaly Laboratory of Applied Mathematics Department of CivilEnvironmental and Mechanical EngineeringUniversity of TrentoTrentoItaly

Several important PDE systems,like magnetohydrodynamics and computational electrodynamics,are known to support involutions where the divergence of a vector field evolves in divergence-free or divergence constraint-preserving ***,new classes of PDE systems have emerged for hyperelasticity,compressible multiphase flows,so-called firstorder reductions of the Einstein field equations,or a novel first-order hyperbolic reformulation of Schrödinger’s equation,to name a few,where the involution in the PDE supports curl-free or curl constraint-preserving evolution of a vector *** study the problem of curl constraint-preserving reconstruction as it pertains to the design of mimetic finite volume(FV)WENO-like schemes for PDEs that support a curl-preserving involution.(Some insights into discontinuous Galerkin(DG)schemes are also drawn,though that is not the prime focus of this paper.)This is done for two-and three-dimensional structured mesh problems where we deliver closed form expressions for the *** importance of multidimensional Riemann solvers in facilitating the design of such schemes is also *** two dimensions,a von Neumann analysis of structure-preserving WENOlike schemes that mimetically satisfy the curl constraints,is also *** shows the tremendous value of higher order WENO-like schemes in minimizing dissipation and dispersion for this class of *** results are also presented to show that the edge-centered curl-preserving(ECCP)schemes meet their design *** paper is the first paper that invents non-linearly hybridized curl-preserving reconstruction and integrates it with higher order Godunov *** its very design,this paper is,therefore,intended to be forward-looking and to set the stage for future work on curl involution-constrained PDEs.

关键词： PDEs Numerical schemes Mimetic

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：