检索结果-内蒙古大学图书馆

2024 International Conference on Circuit, Systems and Communication, ICCSC 2024

作者： El-Amarty, Naima El Fadili, Hakim Bennani, Saad Dosse Fst Usmba Intelligent Systems Georesources and Renewable Energies Laboratory Fez Morocco Computer Science and Interdisciplinary Physics Laboratory Usmba Fez Morocco

ISBN: (纸本)9798350365306

Accurate short-term forecasts of Global Horizontal Irradiance (GHI) are crucial for optimizing solar energy production and grid stability. They enable adjustments to power output based on anticipated fluctuations in solar power input. This paper proposes a novel Tiny Machine Learning (TinyML) approach for predicting GHI values specifically designed for deployment on resource-constrained Internet of Things (IoT) devices. Two experiments were conducted. First, a comprehensive benchmark study compared five machine learning models (artificial neural network, XGBoost decision tree, gradient boosting, and random forest) for GHI forecasting in Fez, Morocco. This study identified the ANN model as the most effective for simultaneously predicting GHI three multi-steps ahead. The benchmarking was performed on a PC to simulate cloud-based forecasting. The second experiment deployed and tested the chosen ANN model on a Raspberry Pi 4 to predict GHI three multi-steps ahead (1-3 hours). This evaluated its effectiveness for on-device (edge) prediction, contributing to a more intelligent and efficient solar energy management strategy. © 2024 IEEE.

关键词： Solar irradiance

来源：评论

学校读者我要写书评

暂无评论

Pronounced advance on typhoon track forecast with global convection-permitting model

引用

science Bulletin 2025年第9期70卷 1424-1428页

作者： Gu, Jun Zhao, Chun Li, Gudongze Feng, Jiawang Xu, Mingyue Du, Qiuyan Xia, Zihan Li, Yubin Chen, Guanghua Hao, Xiaoyu Chen, Junshi An, Hong Deep Space Exploration Laboratory/School of Earth and Space Sciences/CMA-USTC Laboratory of Fengyun Remote Sensing/State Key Laboratory of Fire Science/Institute of Advanced Interdisciplinary Research on High-Performance Computing Systems and Software University of Science and Technology of China Hefei230026 China Laoshan Laboratory Qingdao266237 China CAS Center for Excellence in Comparative Planetology University of Science and Technology of China Hefei230026 China School of Atmospheric Physics Nanjing University of Information Science and Technology Nanjing210044 China Key Laboratory of Cloud-Precipitation Physics and Severe Storms Institute of Atmospheric Physics Chinese Academy of Sciences Beijing100029 China School of Computer Science and Technology University of Science and Technology of China Hefei230026 China

来源：评论

学校读者我要写书评

暂无评论

Multi-Scale Cascaded with Cross-Attention Network-Based Deformation Vector Field Estimation for Motion-Compensated 4D-CBCT Reconstruction

IEEE Transactions on Computational Imaging

引用

IEEE Transactions on Computational Imaging 2025年 11卷 717-731页

作者： Yuan, Peng Lyu, Fei Gao, Zhiqiang Yang, Chunfeng Hu, Dianlin Zhu, Jian Wu, Zhan Lyu, Tianling Zhao, Wei Dong, Jianmin Chen, Yang Key Laboratory of New Generation Artificial Intelligence Technology and Its Interdisciplinary Applications Ministry of Education Southeast University Nanjing210096 China Laboratory of Image Science and Technology Southeast University Nanjing210096 China Department of Computer Science Hong Kong Baptist University Hong Kong Hong Kong Academy for Advanced Interdisciplinary Science and Technology Zhejiang University of Technology Hangzhou China School of Physics Beihang University Beijing China Beihang Hangzhou Innovation Institute Zhejiang Hangzhou China School of Shandong Cancer Hospital and Institute Shandong First Medical University Shandong Academy of Medical Sciences Jinan Shandong China School of Information Engineering Xizang Minzu University Xianyang712082 China Jiangsu Provincial Joint International Research Laboratory of Medical Information Processing The Laboratory of Image Science and Technology The School of Computer Science and Engineering Key Laboratory of New Generation Artificial Intelligence Technology and Its Interdisciplinary Applications Southeast University Ministry of Education Nanjing210096 China

Four-Dimensional Cone Beam Computed Tomography (4D-CBCT) imaging technology offers enhanced image quality and spatial resolution for intraoperative guidance, facilitating real-time tracking of tumor position changes during radiotherapy. However, this is still a task of great challenges due to insufficient projections at each respiratory phase after phase-sorting, and the image phases reconstructed directly from phase-sorted data are discrete and discontinuous. To generate high-quality 4D-CBCT deformation vector fields (DVFs), this paper leverages the preoperative static prior image to guide intraoperative dynamic sparse-view reconstruction images for reducing anatomical structure differences, ultimately achieving continuous and dynamic 4D-CBCT imaging. In this paper, we propose a Multi-scale Cascaded residual deformable vector field estimation framework based on Cross-attention in Motioncompensated 4D-CBCT reconstruction (MCCM), which combines Multi-Scale Cascaded residual registration network (MSCNet), Cross-Attention Enhanced feature Fusion (CAEF) module and Structure-Enhanced Motion-Compensated (SEMC) module: 1) the MCCM employs a multi-scale cascaded residual network strategy, merging multi-receptive fields and multi-resolution feature maps for large-scale internal changes. 2) the CAEF is embedded into MSC-Net to facilitate effective communication and learning between features and promote the flow of information. 3) the SEMC is developed to reduce artifacts after intraoperative CBCT sparse-view reconstruction, restore global lung motion changes and local details, and enhance structural information through image fusion. The proposed method has been evaluated using simulated and clinical datasets and has shown promising results by comparative experiment. Our approach exhibits significant improvements across various evaluation metrics. © 2024 IEEE.

关键词： Image fusion

来源：评论

学校读者我要写书评

暂无评论

Tunable Filters Based on Fano Resonance Using Asymmetric Moving Resonators in a Single Loop System

引用

Progress In Electromagnetics Research C 2024年 141卷 143-150页

作者： El-Aouni, Mimoun Ben-Ali, Youssef El Kadmiri, Ilyass Errouas, Younes Ouariach, Abdelaziz Bria, Driss Laboratory of Materials Waves Energy and Environment Team of Waves Acoustics Photonics and Materials Mohamed I University Oujda Morocco Multidisciplinary Faculty of Taza Sidi Mohamed Ben Abdellah University B.P. 1223 Taza Gare Morocco Laboratory of Computer Science and Interdisciplinary Physics ENSF Sidi Mohamed Ben Abdellah University Fez Morocco

We report a novel characteristic of the phenomenon of Fano resonance obtained by the interaction of incident electromagnetic waves and waveguides system formed of loop and resonators. The Green Function Method (GFM) is employed to calculate the transmittance of the incoming electromagnetic waves. Our proposed system achieve a selecting and filtering device either by total transmission or by total reflection with a very high performance. The proposed structure contains four segments of the same lengths, and asymmetric resonators (N and N′ resonators) are moving in the structure. Through parameters optimization, we show that the system creates Fano resonances, which are sensitive to the variations of the segment lengths, the resonator lengths, the positions of the resonators, and the physical properties of the system components. Then, the proposed system is able to filter at least two resonance modes with different frequencies. This system has potential applications in the field of microwave communication antennas. © 2024, Electromagnetics Academy. All rights reserved.

关键词： Resonators

来源：评论

学校读者我要写书评

暂无评论

Acoustic wave transmission tuning in a onedimensional system using two parallelepiped copper local resonators

Acoustic wave transmission tuning in a onedimensional system...

引用

2024 International Conference on Circuit, Systems and Communication, ICCSC 2024

作者： Khattab, Moulay Said Touiss, Tarik El Kadmiri, Ilyass Bria, Driss Mohamed First University Laboratory of Materials Waves Energy and Environment Team of Acoustics Photonics and Materials Faculty of Sciences Oujda Morocco Sidi Mohamed Ben Abdellah University Laboratory of Computer Science and Interdisciplinary Physics ENSF Fez Morocco

ISBN: (纸本)9798350365306

In this work, we explore the optimization of acoustic wave transmission in a one-dimensional system using two parallelepiped copper local resonators. We use the theoretical analysis based on the transfer matrix method to calculate the transmission rate of acoustic waves. The results show that the eigen modes shift towards lower frequencies with the variation of the lengths of the patches, and towards higher frequencies as their height increases. This work aims to introduce fine copper plates, mounted flush on the walls of a duct, to create frequency stop bands in a specific range. This novel approach aims to optimize acoustic wave propagation in one-dimensional waveguide structures, and the results are significant for improving acoustic transmission. © 2024 IEEE.

关键词： Transfer matrix method

来源：评论

学校读者我要写书评

暂无评论

Black-hole-inspired thermal trapping with graded heat-conduction metadevices

引用

National science Review 2023年第2期10卷 131-138页

作者： Liujun Xu Jinrong Liu Peng Jin Guoqiang Xu Jiaxin Li Xiaoping Ouyang Ying Li Cheng-Wei Qiu Jiping Huang Department of Physics State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE) Fudan University Department of Electrical and Computer Engineering National University of Singapore Graduate School of China Academy of Engineering Physics School of Materials Science and Engineering Xiangtan University Interdisciplinary Center for Quantum Information State Key Laboratory of Modern Optical InstrumentationZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang University International Joint Innovation Center Key Laboratory of Advanced Micro/Nano Electronic Devices and Smart Systems of Zhejiang The Electromagnetics Academy of Zhejiang University Zhejiang University

The curved space-time produced by black holes leads to the intriguing trapping *** far,metadevices have enabled analogous black holes to trap light or sound in laboratory ***,trapping heat in a conductive environment is still challenging because diffusive behaviors are *** by black holes,we construct graded heat-conduction metadevices to achieve thermal trapping,resorting to the imitated advection produced by graded thermal conductivities rather than the trivial solution of using insulation materials to confine thermal *** experimentally demonstrate thermal trapping for guiding hot spots to diffuse towards the *** heat-conduction metadevices have advantages in energy-efficient thermal regulation because the imitated advection has a similar temperature field effect to the realistic advection that is usually driven by external energy *** results also provide an insight into correlating transformation thermotics with other disciplines,such as cosmology,for emerging heat control schemes.

关键词： thermal trapping graded metadevices imitated advection

来源：评论

学校读者我要写书评

暂无评论

Accurate Short-Term Solar Irradiance Forecasting with TinyML on Edge Device

Accurate Short-Term Solar Irradiance Forecasting with TinyML...

引用

Circuit, Systems and Communication (ICCSC), International Conference on

作者： Naima El-Amarty Hakim El Fadili Saad Dosse Bennani Intelligent Systems Georesources and Renewable Energies Laboratory FST USMBA Fez Morocco Computer Science and Interdisciplinary Physics Laboratory USMBA Fez Morocco

ISBN: (数字)9798350365306

ISBN: (纸本)9798350365313

关键词： Solar irradiance Accuracy Tiny machine learning Artificial neural networks Production Predictive models Benchmark testing

来源：评论

学校读者我要写书评

暂无评论

Three Channels Splitter Acoustic Waves Based on Ramified System Made of Waveguides and a Resonators 4

Three Channels Splitter Acoustic Waves Based on Ramified Sys...

引用

4th International Conference on Innovative Research in Applied science, Engineering and Technology, IRASET 2024

作者： El-Atmani, Ilham El Kadmiri, Ilyass Khaled, Aissam Bria, Driss El Kettani, Mounsif Ech Cherif Marechal, Pierre Mohammed First University Laboratory Of Materials Waves Energy And Environment Team Of Waves Acoustic Photonic And Materials Faculty Of Sciences Oujda Morocco Sidi Mohamed Ben Abdellah University Laboratory Of Computer Science And Interdisciplinary Physics Fez Morocco Laboratory Of Engineering Sciences And Applications Ensa Alhoceima Morocco Le Havre Normandy University Laboratory Of Waves And Complex Media Havre Normandy France

ISBN: (纸本)9798350309508

The focus of this research is to investigate how sound waves propagate in acoustical splitter waves using a ramified (branching) system. Three output lines (three channels) and an input waveguide form the components of the proposed structure. Each output line (i =1,2,3) has an acoustic waveguide of length di1 and one grafted resonator of length di2. Three transmission and reflection rates may be computed using the Transfer Matrix Method (TMM), which is the basis of the theoretical analysis. By splitting an incident acoustic wave into three output channels, we show how the suggested configuration may be utilized to create a multipurpose device that serves as an amplitude splitter. The waveguide and resonator's dimensions have an influence on the signal's output frequency. With perfect channel transmissions, this system is able to generate a variety of waveguiding properties. © 2024 IEEE.

关键词： Transfer matrix method

来源：评论

学校读者我要写书评

暂无评论

Acoustically Induced Transparency Resonance and Flat Band in 1D Quasi-Periodic Structure According to an Arithmetic Sequence 4

Acoustically Induced Transparency Resonance and Flat Band in...

引用

4th International Conference on Innovative Research in Applied science, Engineering and Technology, IRASET 2024

作者： El Kadmiri, Ilyass Errouas, Younes El-Atmani, Ilham Ben-Ali, Youssef Bria, Driss El Khadiri, Karim Laboratory Of Computer Science And Interdisciplinary Physics Ensf Sidi Mohamed Ben Abdellah University Fez Morocco Laboratory Of Materials Waves Energy And Environment Team Of Waves Acoustic Photonic And Materials Faculty Of Sciences Mohamed First University Oujda Morocco Multidisciplinary Faculty Of Taza Sidi Mohamed Ben Abdellah University Taza Morocco

ISBN: (纸本)9798350309508

In this paper, we study a perfect quasi-periodic system, consisting of a periodicity of segments of length d1 and N' closed resonators of lengths d2j, in which the resonators lengths depend on each other according to an arithmetic sequence. Firstly, we take a single resonator between two semi-infinite guides and we indicate the existence of the AIT resonance and the resonant modes move towards the lower frequencies with the variation of a resonator length d21. Secondly, we show the appearance of new discrete modes located between two transmission zeros. These discrete modes are located around specific frequencies with higher transmission rates and quality factors. If we start increasing the number of resonators, we get more AIT resonances, and their resonance frequencies depend on the interaction between the modes of each resonator. The creation of resonators of different lengths in a perfect comb-like quasi-periodic system gives rise to very thin flat bands located inside the band gaps. If we consider that we have (j) resonators of different lengths, in this case there will be (j-1) flat bands, which gives a general rule of an arithmetic sequence such as d2j = d21 + (j - 1) × step. On the other hand, we study the effect of introducing five defects at the resonators located in the middle of the quasi-periodic structure, these defects have different lengths d02j[j = 1 - 5], the creation of geometrical defects give rise to defect modes in the band gaps. These results are suitable for the application of multichannel filters. © 2024 IEEE.

关键词： Energy gap

来源：评论

学校读者我要写书评

暂无评论

Acoustic Switch Device for a Splitter Acoustic Wave made by Waveguides and Resonator

Acoustic Switch Device for a Splitter Acoustic Wave made by ...

引用

2024 International Conference on Circuit, Systems and Communication, ICCSC 2024

作者： El-Atmani, Ilham El Kadmiri, Ilyass Bria, Driss Khaled, Aissam El Kettani, Mounsif Ech Cherif Marechal, Pierre Mohammed First University Laboratory of Materials Waves Energy and Environment Team of Waves Acoustic Photonic and Materials Faculty of Sciences Oujda Morocco Sidi Mohamed Ben Abdellah University Laboratory of Computer Science and Interdisciplinary Physics ENSF Fez Morocco Laboratory of Engineering Sciences and Applications Ensa Alhoceima Morocco Le Havre Normandy University Laboratory of Waves and Complex Media Normandy Havre France

ISBN: (纸本)9798350365306

In this paper, we present the propagation of acoustic waves in switchable device within a specific reduced frequency range. Our proposed system comprises an input and three output lines (three channels), initially acting as an amplitude divider that splits an incident acoustic wave into three output channels. We demonstrate theoretically that the introduction of a resonator of length d2=0.5 D along the waveguide of length dc=0.5 D connecting the output channels to the input channel of our system, efficiently modulates the acoustic signal on the reduced frequency range Ω=[2.2-4.0]. Consequently, the input signal is entirely transmitted at the first output line (T1=1), while transmissions through the second and third channels, as well as reflection, are nullified (T2=T3=R=0). The theoretical analysis is based on the Transfer Matrix Method (TMM), enabling us to determine the three transmission rates T1, T2, T3, and the reflection rate R. The length and position of the resonator control the acoustic wave, achieving an acoustic switching phenomenon with important efficiency. © 2024 IEEE.

关键词： Transfer matrix method

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：