检索结果-内蒙古大学图书馆

MBSE Approach to Early Naval Ship Design Exploration with power Electronic power Distribution System in power and Energy Corridors

引用

IEEE Transactions on Transportation Electrification 2025年

作者： Cuzner, Robert Chalfant, Julie Gross, David Shabani, Hamed Ali, Naqash Steurer, Mischa University of Wisconsin-Milwaukee Department of Electrical Engineering MilwaukeeWI53211 United States Design Laboratory of the MIT Sea Grant College Program Massachusetts Institute of Technology CambridgeMA02139 United States Florida State University Center for Advanced Power Systems TallahasseeFL32310 United States

The concept development of any system includes the definition of various parameters of interest and determination of the threshold (satisfactory) and goal (desired) value for each. These are classically organized into Measures of Effectiveness, Measures of Performance (MOPs), & Technical Performance Measures (TPMs). These form the basis of performance requirements, the means for evaluating design, and the measure by which systems are validated. A cross-cutting sub-set of MOPs and TPMs, Key Performance Parameters (KPPs) can define the trade space within which to optimize the emerging solution. Applying this systematic approach is substantially complicated when the system of interest aims for unprecedented capabilities from emerging technologies, which is the situation for electric ship research. This paper presents an Integration Framework that effectively maps out a process leading to defined parameter objectives, which is being developed and used in the U.S. Department of Navy sponsored power Electronic power Distribution System (PEPDS) research initiative. The method then integrates the Model-Based Systems engineering (MBSE) system model with genetic algorithm trade space exploration tools. © 2025 IEEE. All rights reserved.

关键词： Warships

来源：评论

学校读者我要写书评

暂无评论

The Effect of Different Design and Operational Parameters on the Performance of Can-Type Combustors 3

The Effect of Different Design and Operational Parameters on...

引用

3rd Novel Intelligent and Leading Emerging Sciences Conference, NILES 2021

作者： Boraey, Mohammed A. Kareem, Gamal Abdel Hameed, Hesham Abdel Salmawy, Hafez El Zagazig University Mechanical Power Engineering Department Zagazig Egypt Smart Engineering Systems Research Center Nile University Gize Egypt Mechanical Engineering Program Nile University Gize Egypt Marine units and maintenance Department PetroGulf Misr Cairo Egypt

ISBN: (纸本)9781665421577

Numerical simulation of the non-premixed combustion of methane air mixture in a gas turbine can- type swirl combustor is conducted. The study objective is to examine the effect of different design and operational parameters on the combustor performance and its emissions. The investigated parameters are the primary air flow rate, the swirl ratio between the secondary and the primary air and the fuel to the primary air swirl ratio. Several indicators are used to evaluate the combustion performance and emissions which include average exit temperature of the chamber, pattern factor, NOx and CO emission indices, combustion efficiency and the pressure drop. The results of the study demonstrate the importance of good tuning of the design and operating parameters for better performance and reduced emissions. © 2021 IEEE.

关键词： Combustors

来源：评论

学校读者我要写书评

暂无评论

Optimizing The Performance Of Photovoltaic Systems Under Non-uniform Irradiance Using ANN-MPPT Algorithm

Optimizing The Performance Of Photovoltaic Systems Under Non...

引用

IEEE Conference on power Electronics and Renewable Energy (CPERE)

作者： Mohamed A. Khafagy Sameh O. Abdellatif Rania A. Swief Hani A. Ghali MSc. Student in Renewable Energy Program Electrical Engineering Department Faculty of Engineering The British University of Egypt (BUE) Cairo Egypt Electrical Engineering Department Faculty of Engineering and FabLab in the centerfor Emerging Learning Technology(CELT) Faculty of Engineering and FabLab in the center for Emerging Learning Technology(CELT) Cairo Egypt Electrical Power and Machines Engineering Faculty of Engineering Ain Sham University Cairo Egypt

Photovoltaic (PV) systems are usually designed based on the standard operating condition in a specific location. However, harsh environmental conditions impact the PV array during regular operation. One of these harsh conditions can be the non-uniform irradiance spatially or temporally. Herein, the maximum power point tracking (MPPT) systems are essential in maintaining the operation under the maximum possible conditions. Artificial neural network (ANN) techniques have attracted researchers’ attention as an up-to-date artificial alternative in MPPT algorithms. We demonstrated two PV systems, on-grid and off-grid, with a power capacity of 5 kW. The proposed ANN model showed enhanced performance concerning conventional ones with a minimum response time of 0.0075 se

关键词： Photovoltaic systems Maximum power point trackers Renewable energy sources Artificial neural networks power electronics Time factors Standards

来源：评论

学校读者我要写书评

暂无评论

Adaptive Control Applied to Half-Bridge Synchronous Buck Converter using LCL Filter for Charging Batteries

Adaptive Control Applied to Half-Bridge Synchronous Buck Con...

引用

power Electronics and Control (SEPOC), Seminar on

作者： Vinícius Descovi Rodrigues João Vitor Merlo Jonas Roberto Tibola Rodrigo Varella Tambara Research and Development Center in Electrical Engineering - NUPEDEE Federal University of Santa Maria Santa Maria Brasil Graduate Program in Electrical Engineering - PPGEE Federal University of Santa Maria Santa Maria Brasil Research and Development Center in Electrical and Computational Systems - GSEC Federal University of Santa Maria Santa Maria Brasil Group of Power Electronics and Control - GEPOC Federal University of Santa Maria Santa Maria Brasil

ISBN: (数字)9798350379419

ISBN: (纸本)9798350379426

This paper proposes a discrete-time Model Reference Adaptive Controller (MRAC), applied to a Half-Bridge synchronous buck converter for charging batteries. The system uses an LCL filter that interfaces the power converter and the batteries. A virtual plant method is proposed for better transitory response of the adaptive control system. The model reference utilizes a reduced order, to simplify the project of the adaptive controller. Simulation results are presented for validation of the control project.

关键词： Seminars Adaptation models Buck converters Simulation power electronics Batteries Topology Adaptive control

来源：评论

学校读者我要写书评

暂无评论

All-Electric Ship On-Board Continuous Sustainable H2 Generation from Aluminum Scrap and Seawater

All-Electric Ship On-Board Continuous Sustainable H2 Generat...

引用

IEEE Electric Ship Technologies Symposium, ESTS

作者： Dhyogo M. Taher Wellington Balmant Stephan H. Och Diogo B. Pitz Giuliana S. Venter Lucio C. Filho Lauber S. Martins José V. C. Vargas Juan C. Ordonez Graduate Program in Mechanical Engineering and Sustainable Energy Research and Development Center Federal University of Paraná UFPR Curitiba PR Brazil Department of Chemical Engineering Maringá State University UEM Maringá PR Brazil Department of Health and Biomedical Sciences Advent Health University AHU Orlando FL USA Department of Mechanical Engineering Center for Advanced Power Systems and Energy and Sustainability Center Florida State University FSU Tallahassee FL USA

A mathematical model of a sustainable H2 generation reactor that utilizes aluminum and seawater is introduced. Conservation of species and the kinetics of the H2 production reaction from aluminum and seawater allowed for obtaining the process transient response in a batch reactor. Continuous steady state production was assessed by adding a balance of energy, allowing for reactants inlet mass flow rates, and calculating the outlet H2 mass flow (generation) rate. The theoretical H2 production curve data showed good quantitative and qualitative agreement with experimental data. The validated mathematical model was then used to optimize the continuous reactor. The maximum was sharp, since an 85% variation between the maximum and the smallest H2 generation rate value as a function of the inlet NaOH solution volumetric flow rate tested range was verified. Such fundamental result stresses the importance of operating the system at the optimal condition, no matter how complex the actual reactor design may be. Since aluminum is inexpensive, abundant, and fully recyclable, in situ sustainable H2 production could allow for fuel cell stacks to become all electric ships (AES) power sources.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Diesel/Biodiesel/Biogas Mixtures Driven Compression Ignition Internal Combustion Engines Constructal Design

SSRN

引用

SSRN 2024年

作者： Arcanjo, S. Vargas, José Viriato Coelho Ordonez, J.C. Och, S.H. Balmant, W. Mariano, A.B. Kava, V.M. Department of Mechanical Engineering Graduate Program in Mechanical Engineering PGMEC andSustainableEnergyResearch&DevelopmentCenter NPDEAS FederalUniversityofParaná UFPR CP 19011 PR Curitiba81531–980 Brazil Department of Mechanical Engineering Energy and Sustainability Center Center for Advanced Power Systems Florida State University FSU TallahasseeFL32310–6046 United States Department of Electrical Engineering Sustainable Energy Research & Development Center NPDEAS Federal University of Paraná UFPR CP 19011 PR Curitiba81531–980 Brazil Department of Genetics Sustainable Energy Research & Development Center NPDEAS Federal University of Paraná UFPR CP 19011 PR Curitiba81531–980 Brazil

This paper introduces a first and second law based transient mathematical model for 4-stroke compression ignition internal combustion engines (CI-ICE) driven by diesel/biodiesel/biogas mixtures to allow for the maximization of system performance. In this way, the CI-ICE morphology that provides easier access to the currents that flow through it is sought, according to constructal law. The total entropy generated in the CI-ICE cycle was calculated by adding the entropy generation in all strokes. An optimization problem was formulated based on the variation of operating and geometric parameters, and the objective functions were the effective and 2nd law efficiencies, and , as well as the destroyed exergy fraction, . The optimal ranges found for the bore-stroke, compression and conrod-crank ratios were;, and in which with for D100 (pure diesel), and with for B50D25NG25 (biodiesel/diesel/natural gas blend). The maxima and minimum found were sharp, since and varied up to 71% and 69% in comparison to their maximum values, respectively, and up to 45% in comparison to its minimum value within the adopted ranges of variation of the optimized parameters. Such large variations stress the importance of considering the optimized CI-ICE morphology in actual design, i.e., CI-ICE constructal design. © 2024, The Authors. All rights reserved.

关键词： Entropy

来源：评论

学校读者我要写书评

暂无评论

Stable Cycling of Sodium All-Solid-State Batteries with High-Capacity Cathode Presodiation

引用

Advanced Energy Materials 2025年第0期

作者： Tang, Wei Xu, Dapeng Wu, Junlin Lee, Dong Ju Fuqua, Alexander Li, Feng Jeon, Yuju Bian, Wenjuan Chen, Zheng Aiiso Yufeng Li Department of Chemical and Nano Engineering University of California La Jolla San DiegoCA92093 United States Program of Materials Science and Engineering University of California La Jolla San DiegoCA92093 United States Energy and Environment Science and Technology Idaho National Laboratory Idaho FallsID83415 United States Sustainable Power and Energy Center University of California La Jolla San DiegoCA92093 United States

Sodium all-solid-state batteries (NaSSBs) with an alloy-type anode (e.g., Sn and Sb) offer superior capacity and energy density compared to hard carbon anode. However, the irreversible loss of Na+ at the alloy anode during the initial cycle results in diminished capacity and stability, impairing full-cell performance. This study presents an easy-to-implement cathode presodiation strategy by employing a Na-rich material to address these challenges. Leveraging the high theoretical capacity and suitable voltage window, Na2S is chosen as the Na donor, which is activated by creating a mixed electron-ion conducting network, delivering a high capacity of 511.7 mAh g−1. By adding a small amount (i.e., 3 wt.%) of Na2S to the cathode composite, a NaCrO2 || Sn full cell demonstrated capacity improvement from 90.8 to 118.2 mAh g−1 (based on cathode mass). The capacity-balanced full cell can thus cycle to more than 300 times with >90% capacity retention. This work provides a practical solution to enhance the full-cell performance and advance the transformation from half-cell to full-cell applications of NaSSBs. © 2025 Wiley-VCH GmbH.

关键词： Solid-State Batteries

来源：评论

学校读者我要写书评

暂无评论

Resilience of Data-Driven Cyberattack Detection Systems in Smart power Grids

Resilience of Data-Driven Cyberattack Detection Systems in S...

引用

European Signal Processing Conference (EUSIPCO)

作者： Abdulrahman Takiddin Rachad Atat Hayat Mbayed Muhammad Ismail Erchin Serpedin Department of Electrical and Computer Engineering Florida State University Tallahassee FL USA Electrical and Computer Engineering Program Texas A&M University at Qatar Doha Qatar Center for Advanced Power Systems Florida State University Tallahassee FL USA Department of Computer Science Tennessee Technological University Cookeville TN USA Department of Electrical and Computer Engineering Texas A&M University College Station TX USA

ISBN: (数字)9789464593617

ISBN: (纸本)9798331519773

Data communications within the smart power grid components are susceptible to cyberattacks due to the inter-connected nature of the grid and reliance on communication networks. Such cyberattacks can exploit the integrity of the exchanged data and result in operational instability. Existing data-driven cyberattack detection systems (CDSs) are proposed in the literature but their effectiveness is only verified against one type of cyberattacks. In reality, a smart grid system could encounter more than one attack type at once. Thus, in this paper, we investigate the resilience of state-of-the-art data-driven CDSs against replay false data injection, adversarial evasion, and adversarial data poisoning attacks on a realistic IEEE 118-bus system model. It turns out that a convolutional recurrent graph autoencoder-based CDS offers an attack detection rate of 96 – 97.5%, which outperforms other machine learning and deep learning-based data-driven CDSs by 16 – 54% since it captures the recurrent and spatial aspects of the data without being trained on attack data.

关键词： Deep learning Europe Feature extraction Graph neural networks Data models Smart grids Reliability Computer crime Unsupervised learning Resilience

来源：评论

学校读者我要写书评

暂无评论

Development of label-free triboelectric nanosensors as screening platforms for anti-tumor drugs

引用

Nano Energy 2024年 125卷

作者： Cheng, Yu-Ying Ganguly, Anindita Cheng, Yi-Yun Ortiz, Christopher Llynard D. Pal, Arnab Shah, Pramod Kaswan, Kuldeep Yang, Lee-Wei Lin, Zong-Hong Department of Biomedical Engineering National Taiwan University Taipei10617 Taiwan Institute of Biomedical Engineering National Tsing Hua University Hsinchu30013 Taiwan Internet of Senses Research Center National Tsing Hua University Hsinchu30013 Taiwan Praexisio Taiwan Inc. New Taipei221425 Taiwan Institute of Bioinformatics and Structural Biology National Tsing Hua University Hsinchu300044 Taiwan Chemical Biology and Molecular Biophysics Program Taiwan International Graduate Program Institute of Biological Chemistry Academia Sinica Taipei115 Taiwan Department of Chemistry National Tsing Hua University Hsinchu300044 Taiwan International Intercollegiate PhD Program National Tsing Hua University Hsinchu300044 Taiwan Department of Power Mechanical Engineering National Tsing Hua University Hsinchu300044 Taiwan Biomedical Artificial Intelligence PhD Program National Tsing Hua University Hsinchu300044 Taiwan Physics Division National Center for Theoretical Sciences Taipei Taiwan

This study introduces a general label-free drug screening platform with potential to support high-throughput drug screening for any protein target. Its innovation lies in quantifying the affinity of molecule-molecule interactions via voltage output variation, which achieves unprecedented selectivity and sensitivity. It combines computational analysis complemented by experimental substantiation with a solid-liquid triboelectric nanosensor. Owing to its high binding affinity, FKBP-rapamycin is used as a model system to demonstrate the platform's sensitivity. Subsequently, the research is extended to study drug interactions with an oncogenic protein ATG4B. The findings unveil the binding of S130 and Tioconazole to ATG4B, a critical cysteine protease involved in autophagy, while revealing that Dexamethasone does not bind ATG4B. This binding exerts a specific inhibitory effect on autophagic flux and triggers cancer cell apoptosis. The results support the previously verified inhibitory effects of these drugs and the effectiveness of a newly developed self-powered drug screening platform, leveraging the principles of solid-liquid contact electrification. This approach adeptly confronts enduring challenges in traditional drug development methods where biochemical assays need to be designed for each individual protein target or only time-consuming and concentration-demanding molecular interaction measurements were made available. © 2024 Elsevier Ltd

关键词： Nanosensors

来源：评论

学校读者我要写书评

暂无评论

Comparative analysis of various oxygen production techniques using multi-criteria decision-making methods

引用

International Journal of Thermofluids 2023年 17卷

作者： Aljaghoub, Haya Alasad, Shamma Alashkar, Adnan AlMallahi, Maryam Hasan, Ranem Obaideen, Khaled Alami, Abdul Hai Department of Industrial Engineering and Engineering Management University of Sharjah Sharjah United Arab Emirates Mechanical Engineering Department American University of Sharjah Sharjah United Arab Emirates Materials Science and Engineering PhD Program American University of Sharjah Sharjah United Arab Emirates Department of Mechanical and Aerospace Engineering United Arab Emirates University Al Ain City United Arab Emirates Department of Sustainable and Renewable Energy Engineering University of Sharjah Sharjah United Arab Emirates Sustainable Energy and Power Systems Research Center RISE University of Sharjah Sharjah United Arab Emirates Center for Advanced Materials Research University of Sharjah Sharjah United Arab Emirates

The current pandemic has adversely affected oxygen production and supply chain, where oxygen treatment is essential for the emergency treatment protocol of patients infected by the virus. This work reports on various techniques of oxygen generation methods, as well as the challenges facing its production, storage, and transportation. Moreover, this study offers a comparative analysis of various oxygen production techniques using Multi-Criteria Decision-Making Methods (MCDM). Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), in addition to the weighting methodologies, Multiplicative Exponential Weighting (MEW) and Simple Additive Weighting (SAW) are chosen as tools to carry out the statistical analysis and rank the oxygen production methods. The ranking criteria includes cost, performance, environmental impact and safety. Moreover, this paper utilizes the Entropy Weight Method (EWM), Criteria Importance Through Inter-criteria Correlation (CRITIC) method, and the Stochastic Dominance (SD) method to distribute the criteria weights. The results show thar oxygen production using membrane technologies is the optimal technique based on all the provided tools and criteria. as it attained the maximum Entropy and Sd values of 0.548 through the TOPSIS method, and the highest CRITIC value through SAW and MEW methods which were 0.260 and 0.236, respectively. © 2022 The Author(s)

关键词： Stochastic systems

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：