检索结果-内蒙古大学图书馆

2nd International Microwave and Antenna Symposium, IMAS 2024

作者： Yahya, Rabia Yin, Haosen Bertuch, David El-Ghazaly, Amal Nouakchott University Department of Physics Faculty of Science and Technology Nouakchott Mauritania Cornell University Department of Electrical and Computer Engineering IthacaNY United States

ISBN: (纸本)9798350356359

Herein, we present a novel transparent antenna with ultra-wideband (UWB) performance along with polarization diversity through 4 ports allowing MIMO operation. The antenna design can be of a great interest for a vehicular applications and Internet of Things (IOT) where the dual polarization and multiple ports allows as well as medical glasses and vehicular windows where transparency is needed for visibility. The proposed antenna provides compact size with dimensions of 50 mm×50 mm, through the employment of CPW, dual orthogonal-polarization, isolation level of 20 dB, and envelope correlation coefficient (ECC) of 0.0016 as well as MIMO performance. © 2024 IEEE.

关键词： Ultra-wideband (UWB)

来源：评论

学校读者我要写书评

暂无评论

Integrated Photonic Platform for Low Noise Microwave Generation

Integrated Photonic Platform for Low Noise Microwave Generat...

引用

CLEO: Science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Kudelin, Igor Groman, William Ji, Qing-Xin Guo, Joel Kelleher, Megan Lee, Dahyeon Nakamura, Takuma McLemore, Charles A. Shirmohammadi, Pedram Hanifi, Samin Cheng, Haotian Jin, Naijun Wu, Lue Halladay, Samuel Luo, Yizhi Dai, Zhaowei Jin, Warren Bai, Junwu Liu, Yifan Zhang, Wei Xiang, Chao Chang, Lin Iltchenko, Vladimir Miller, Owen Matsko, Andrey Bowers, Steven M. Rakich, Peter T. Campbell, Joe Bowers, John Vahala, Kerry Quinlan, Franklyn Diddams, Scott A. Department of Physics University of Colorado BoulderCO United States Time and Frequency Division National Institute of Standards and Technology BoulderCO United States T.J. Watson Laboratory of Applied Physics California Institute of Technology PasadenaCA United States Department of Electrical and Computer Engineering University of California Santa BarbaraCA United States Electrical and Computer Engineering University of Virginia CharlottesvilleVA United States Department of Applied Physics Yale University New HavenCT United States Jet Propulsion Laboratory California Institute of Technology PasadenaCA United States Department of Electrical Computer and Energy Engineering University of Colorado BoulderCO United States

Using integrated photonic chip components for'2-point' optical frequency division, we generate a 20 GHz microwave signal with phase noise of −135 dBc/Hz at 10 kHz offset. © Optica Publishing Group 2024

关键词： Photonic integrated circuits

来源：评论

学校读者我要写书评

暂无评论

Design and Implementation of a non-PWM DC-DC Boost Converter in SkyWater Technology

Design and Implementation of a non-PWM DC-DC Boost Converter...

引用

2024 Panhellenic Conference on Electronics and Telecommunications, PACET 2024

作者： Kontogiannis, Stefanos Tsiougkos, Andreas Gogolou, Vasiliki Pavlidis, Vasilis F. Noulis, Thomas Aristotle University of Thessaloniki Department of Electrical and Computer Engineering Thessaloniki Greece Aristotle University of Thessaloniki Electronics Lab. Physics Department Thessaloniki Greece

ISBN: (纸本)9798350318845

DC-DC power converters have become an integral part in various commercial and industrial applications with an ever-increasing need for efficient power management. Modern electronic systems often demand several different voltage levels due to the plethora of subsystem modules. A non-PWM novel boost converter topology is proposed that can deliver sufficiently high load currents (on the order of tens of mAs) while maintaining a high output voltage. The circuit can also operate with a low inductance, low quality, on-chip inductor, thus eliminating the need for external circuit board components. The proposed topology has been implemented alongside its on-chip inductor in SkyWater 130nm technology, exhibiting a maximum efficiency of 82% and operating at battery voltage levels as low as 0.7 V while supplying 8.6 mA at 1.55 V at the output. © 2024 IEEE.

关键词： Pulse width modulation

来源：评论

学校读者我要写书评

暂无评论

Influence of performance and emission of diesel engine with alumina nano material-based catalyst biodiesel using IoT

引用

International Journal of Power and Energy Conversion 2024年第4期15卷 338-351页

作者： Venkatesh, B. Khan, Mudassir Babu, J. Chinna Nagaraju, C.H. Mohan, R. Madhan Department of Mechanical Engineering Annamacharya Institute of Technology and Sciences Andhra Pradesh Rajampet India Department of Computer Science College of Computer Science Applied College Tanumah King Khalid University P.O. Box 960-61421 Abha Saudi Arabia Department of Electronics and Communication Engineering Annamacharya Institute of Technology and Sciences Andhra Pradesh Rajampet India Department of Electrical and Electronics Engineering Annamacharya Institute of Technology and Sciences India

In this study, the performance and emissions of Al2O3 alkaline cottonseed biodiesel-powered compression ignition engines were predicted. An experiment was conducted using different biodiesel blends made from cottonseed oil under various loading conditions. Biodiesel was produced using ethanol and Cao-mg/Al2O3 as catalysts through the transesterification process and blended with diesel to produce CBDN10, CBDN20, CBDN30, and CBDN40. The CBDN20 blends showed an evident reduction in fuel consumption by 8% and a 12% improvement in thermal efficiency at high static thrust. The use of these blends resulted in minimal CO, CO2, and NOx emissions from engines. These emissions were monitored by an IoT system and analysed with gas analysers, which revealed CBDN20’s ability to reduce nitrogen oxide and hydrocarbon emissions compared to diesel. Additionally, CBDN20 demonstrated improved thermal efficiency and reduced brake-specific fuel consumption compared to the other blends. Copyright © 2024 Inderscience Enterprises Ltd.

关键词： Nitrogen oxides

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

High-throughput study of the anomalous Hall effect

引用

npj Computational Materials 2023年第1期9卷 767-774页

作者： JakubŽelezný Yuta Yahagi Carles Gomez-Olivella Yang Zhang Yan Sun Institute of Physics Czech Academy of SciencesCukrovarnická1016200 Praha 6Czech Republic Department of Applied Physics Tohoku UniversitySendaiMiyagiJapan Department of Physics and Astronomy University of Tennessee KnoxvilleKnoxvilleTN 37996USA Min H.Kao Department of Electrical Engineering and Computer Science University of TennesseeKnoxvilleTN 37996USA Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Despite its long history,the anomalous Hall continues to attract attention due to its complex origins,its connection to topology,and its use as a probe of magnetic *** this work we investigate the anomalous Hall effect in 2871 ferromagnetic materials using an automatic high-throughput calculation *** analyze general properties of the effect,such as its reliance on spin-orbit coupling strength and *** materials with the largest anomalous Hall effect,we find that symmetry-protected band degeneracies in the non-relativistic electronic structure,such as mirror symmetry-protected nodal lines,are typically responsible for the large ***,we examine the dependence of the anomalous Hall effect on magnetization direction and demonstrate deviations from the commonly assumed expression j^(AHE)~M×E.

关键词： effect symmetry protected

来源：评论

学校读者我要写书评

暂无评论

Enhancing Septic Shock Detection through Interpretable Machine Learning

引用

computer Modeling in engineering & Sciences 2024年第12期141卷 2501-2525页

作者： Md Mahfuzur Rahman Md Solaiman Chowdhury Mohammad Shorfuzzaman Lutful Karim Md Shafiullah Farag Azzedin Department of Information and Computer Science King Fahd University of Petroleum and MineralsDhahran31261Saudi Arabia Department of Electrical and Computer Engineering North South UniversityDhaka1229Bangladesh Department of Computer Science Taif UniversityTaif21974Saudi Arabia College of Applied Arts and Technology Seneca PolytechnicTorontoM2J 2X5Canada Department of Control&Instrumentation Engineering King Fahd University of Petroleum and MineralsDhahran31261Saudi Arabia

This article presents an innovative approach that leverages interpretable machine learning models and cloud computing to accelerate the detection of septic shock by analyzing electronic health *** traditional methods,which often lack transparency in decision-making,our approach focuses on early detection,offering a proactive strategy to mitigate the risks of *** integrating advanced machine learning algorithms with interpretability techniques,our method not only provides accurate predictions but also offers clear insights into the factors influencing the model’s ***,we introduce a preference-based matching algorithm to evaluate disease severity,enabling timely interventions guided by the analysis *** innovative integration significantly enhances the effectiveness of our *** leverage a clinical health dataset comprising 1,552,210 Electronic Health Records(EHR)to train our interpretable machine learning models within a cloud computing *** techniques like feature importance analysis and model-agnostic interpretability tools,we aim to clarify the crucial indicators contributing to septic shock *** transparency not only assists healthcare professionals in comprehending the model’s predictions but also facilitates the integration of our system into existing clinical *** validate the effectiveness of our interpretable models using the same dataset,achieving an impressive accuracy rate exceeding 98%through the application of oversampling *** findings of this study hold significant implications for the advancement of more effective and transparent diagnostic tools in the critical domain of sepsis management.

关键词： Sepsis prediction machine learning cloud computing

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

Machine Learning Based Pattern Recognition with HOG Features for Detection of Islanding 3

Machine Learning Based Pattern Recognition with HOG Features...

引用

3rd IEEE International Conference on electrical Power and Energy Systems, ICEPES 2024

作者： Pal, Kumaresh Goswami, Subhadip Bhuyan, Anshuman Koley, Santanu Bera, Bidisha Basu, Sarmistha National Institute of Technology Department of Electrical Engineering Jamshedpur India National Institute of Technology Department of Electrical Engineering Arunachal Pradesh India Gandhi Institute for Education & Technology Department of Electrical Engineering Bhubaneswar India Haldia Institute of Technology Department of Computer Science Engineering Haldia India Global Institute of Science and Technology Department of Computer Science and Technology Haldia India Calcutta Institute of Engineering and Management Department of Physics Kolkata India

ISBN: (纸本)9798350390728

Islanding is a significant difficulty that arises from the high integration of distributed generation sources. Islanding could potentially damage the clients and their equipment. According to the IEEE 1547 DG interconnection requirements, islanding must be detected within two seconds, and the DG must be shut down. This research introduces a new method for identifying islanding using image pattern recognition utilising a Machine Learning classification algorithm. The suggested technique utilises the Random Forest (RF) classification algorithm. Images are utilised to extract the histogram of oriented gradient (HOG) features in order to detect both non-islanding and islanding occurrences. The spectrogram images are formed from the time-series signal collected from the point of common coupling. The images are utilised to extract features from histogram of oriented gradient, which are subsequently used as feature vector inputs for training and testing the RF classifiers. The spectrogram image is derived using the rate of change of the voltage parameter. The efficacy of the RF classifier is evaluated using 5, 10, 20, and 25-fold cross-validations. The classification findings indicates that islanding detection utilising a Random Forest classifier and Histogram of Oriented Gradients (HOG) feature for image pattern recognition obtained outstanding performance with 98.75% accuracy and a detection time of 192 milliseconds. © 2024 IEEE.

关键词： Spectrographs

来源：评论

学校读者我要写书评

暂无评论

GPT Voice-Driven Natural Language Control for ArduPilot-Guided UAVs 22

GPT Voice-Driven Natural Language Control for ArduPilot-Guid...

引用

22nd IEEE International Multi-Conference on Systems, Signals and Devices, SSD 2025

作者： Al Khawaldah, Mohammad Daoud, Omar Matarneh, Aser M. Al-Balqa Applied University Mechatronics Engineering Department Jordan American International University Electrical and Computer Engineering Aljahra Kuwait

ISBN: (纸本)9798331542726

This research work introduces a new system that utilizes Generative Pretrained Transformer (GPT) Large Language Models (LLMs) to enable language-based control for Unmanned Aerial Vehicles (UAVs). The system enables nonexpert users to easily control UAVs using natural language. It integrates GPT-4o-mini model with the widely used open-source ArduPilot Software. The developed system supports both audio and written inputs and accommodates multiple languages. The LLM reasons about the request and generates the required functionality. OpenAI's API (Application Programming Interface) and Function Calling are used to implement the task. © 2025 IEEE.

关键词： API ArduPilot Large Language Model UAV

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：