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2024 Conference on Lasers and Electro-Optics, CLEO 2024

作者： Park, Tae Joon Idjadi, Mohamad Hossein Ashtiani, Farshid Wan, Chenghao Kats, Mikhail A. Ramanathan, Shriram School of Materials Engineering Purdue University West LafayetteIN47907 United States Nokia Bell Labs Murray HillNJ07974 United States Department of Electrical and Computer Engineering University of Wisconsin-Madison MadisonWI53706 United States Department of Materials Science and Engineering University of Wisconsin-Madison MadisonWI53706 United States Department of Electrical and Computer Engineering Rutgers The State University of New Jersey PiscatawayNJ08854 United States

ISBN: (纸本)9781957171395

Atomic layer deposition (ALD) and sputtering of strongly correlated perovskite nickelate thin films are emerging fields for wafer-scale demonstration of quantum technologies. Functional properties of such oxide quantum materials for proof-of-principle non-Von Neumann photonic computing networks are reported. © Optica Publishing Group 2024 ©2024TheAuthor(s)

关键词： Perovskite

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Perovskite nickelate thin film devices as adaptive weights for photonic computing networks

Perovskite nickelate thin film devices as adaptive weights f...

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

关键词： Perovskite

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2D Polynomial Regression Modeling for Predictive Analysis of Glucose Concentration in NP-Model Fractal Microwave Sensor Using Frequency and Transmission Coefficient Disparities 13

2D Polynomial Regression Modeling for Predictive Analysis of...

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13th International electrical engineering Congress, iEECON 2025

作者： Nantapanich, Nutyada Mahatthanajatuphat, Pisit Wongsin, Norakamon Lee, Wilaiporn Rajamangala University of Technology Thanyaburi Faculty of Engineering Department of Electronics and Telecommunication Engineering Pathum Thani Thailand Yothinburana School Regular Program in Mathematics-Science Bangkok Thailand King Mongkut's University of Technology North Bangkok Faculty of Engineering Department of Electrical and Computer Engineering Bangkok Thailand

ISBN: (纸本)9798331543952

The article introduces a two-dimensional polynomial regression model for the predictive analysis of glucose concentration in a fractal microwave sensor NP model, utilizing frequency and transmission coefficient differences to examine their correlation with glucose concentration levels. The sensor employed in this investigation is fabricated on an economical FR-4 substrate to minimize costs. The sensor structure is developed with the fractal structure reduction method established by the NP model to operate at a frequency of roughly 2.97 GHz. The CST Studio software is utilized to analyze the findings from the simulation of the suggested sensor structure. Furthermore, the proposed sensor is integrated into a test apparatus comprising a sensor platform and a liquid tube constructed from PPA material. The liquid under examination is a glucose and water mixture at varying concentrations. It was analyzed using a VNA instrument to evaluate its frequency response and the magnitude of the alteration in the transmission coefficient. The values are utilized to create a two-dimensional polynomial regression model. The experiments demonstrated that the proposed sensor model possesses an Adjusted R² value of 0.99499 and an average error of approximately 3.57% for glucose concentration analysis throughout the range of 5% to 30%, with sensitivities of 0.00879 dB/% for insertion loss and 0.092 MHz/% for frequency variation, facilitating accurate glucose concentration prediction analysis. © 2025 IEEE.

关键词： Polynomial regression

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Improved Emission Lifetime via Thermal Annealing for Ytterbium-doped High-Power Fiber Lasers

Improved Emission Lifetime via Thermal Annealing for Ytterbi...

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2024 Specialty Optical Fibers, SOF 2024

作者： Wang, Siyuan Meehan, Bailey Hawkins, Thomas W. Ballato, John Dragic, Peter D. Department of Electrical and Computer Engineering University of Illinois Urbana-Champaign 208 N Wright St. Urbana61801 United States Department of Materials Science and Engineering Clemson University 91 Technology Drive Anderson29634 United States

Through a series of thermal annealing experiments, it is shown that Yb3+ emission properties could be further optimized, particularly as relates to the quantum efficiency. Achieving near-unity quantum efficiency is pa... 详细信息

关键词： Quantum efficiency

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Impact of Annealing and Fictive Temperature on Brillouin and Raman Scattering Spectra in Yb-doped Fibers

Impact of Annealing and Fictive Temperature on Brillouin and...

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2024 Specialty Optical Fibers, SOF 2024

The impacts of thermal annealing on Brillouin and Raman scattering in Yb-doped fibers are studied and explained by mechanical stress relief, ion diffusion, and glass relaxation. The results facilitate improved perform... 详细信息

关键词： Raman scattering

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The Implementation of TOGAF for Enterprise System Planning on XYZ Campus

The Implementation of TOGAF for Enterprise System Planning o...

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2023 International Conference on Networking, electrical engineering, computer science, and Technology, IConNECT 2023

作者： Sirait, Tamsir Hasudungan Lumban Gaol, Ford Supangkat, Suhono Harso Ranti, Benny Bina Nusantara University Binus Graduate Program Computer Science Jakarta Indonesia Bina Nusantara University Computer Science Department Jakarta Indonesia Bandung Institute of Technology School of Electrical Engineering and Informatics Bandung Indonesia Universitas Indonesia Computer Science Department Jakarta Indonesia

ISBN: (纸本)9798350331172

Universities can employ information technology as one means of achieving their goals and objectives. Universities can get advantages from information technology, such as effective resource management and information management for decision-making. However, don't forget that the campus must consider what technology is appropriate to assist them achieve their goals, particularly in the current industrial era 4.0 where technology is available with many different choices. The campus requires an enterprise architecture in order to design, manage, and coordinate information technology infrastructure, applications, and processes strategically and thoroughly. The adoption of enterprise information system architecture (EA) is also intended to improve the quality of services provided to internal and external stakeholders. In this case, Enterprise Architecture can help an organization to match its information technology resources with business processes and strategies to achieve their goals. This research was conducted using TOGAF ADM, also known as the Open Group Architecture Framework Architecture Development Method. This method offers best practices for creating enterprise architecture and emphasizes several steps that include creating an architectural vision, information systems, business architecture modeling to help XYZ campus manage all their information technology. © 2023 IEEE.

关键词： Information management

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Magnon gap tuning in lithium-doped MnTe

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Physical Review B 2024年第21期109卷 214434-214434页

作者： George Yumnam Duncan H. Moseley Joseph A. M. Paddison Christiana Z. Suggs Emma Zappala David S. Parker Garrett E. Granroth Gerald D. Morris Md Mobarak Hossain Polash Daryoosh Vashaee Michael A. McGuire Huaizhou Zhao Michael E. Manley Benjamin A. Frandsen Raphaël P. Hermann Materials Science and Technology Division Department of Physics and Astronomy Neutron Scattering Division Centre for Molecular and Materials Science Department of Electrical and Computer Engineering Beijing National Laboratory for Condensed Matter Physics

Manganese telluride (MnTe) is a prospective platform for ultrafast carrier dynamics, spin-based thermoelectrics, and magnon-drag transport due to its unique electronic and magnetic properties. We use inelastic neutron scattering to study both pure and lithium-doped MnTe, focusing on the influence of doping in opening a magnon gap. We use neutron powder diffraction to determine critical exponents for the phase transition in both pure and Li-doped MnTe and complement this information with muon spin rotation/relaxation. The opening of the magnon gap and spin reorientation in Li-doped MnTe is mainly due to increased magnetic anisotropy along the [001] axis, a feature not present in pure MnTe.

关键词： Antiferromagnetism Exchange interaction First-principles calculations Magnetic anisotropy Magnons Density functional theory Inelastic neutron scattering Linear spin wave theory Muon spin relaxation & rotation Neutron diffraction

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Photonics roadmap for ultra-high-temperature thermophotovoltaics

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Joule 2023年第10期7卷 2209-2227页

作者： Dias, Mariama Rebello Sousa Gong, Tao Duncan, Margaret A. Ness, Stuart C. McCormack, Scott J. Leite, Marina S. Munday, Jeremy N. Department of Physics University of Richmond RichmondVA23220 United States Department of Materials Science and Engineering University of California Davis DavisCA95616 United States Department of Chemical Engineering University of California Davis DavisCA95616 United States Department of Electrical and Computer Engineering University of California Davis DavisCA95616 United States

The ability to control thermal emission is crucial for the thermal regulation of devices, barrier coatings, and thermophotovoltaic (TPV) systems. However, only a limited number of naturally occurring materials are stable at high temperatures (>1,800°C), and their emission spectra are set a priori by their intrinsic optical properties. Optical structures involving nanoscale textures can result in tunable emission spectra, albeit stable only at much lower temperatures. Here, we present an alternative approach that enables temperatures beyond 1,800°C through a bilayer stack achieved by combining the optical and thermal properties of 2,809 coating/substrate pairs. By varying the film thickness, we tailor the emission spectrum to create high-temperature, stable emitters. We illustrate this effect in combination with the most common TPV systems (GaSb, Ge, InGaAs, and InGaAsSb), showing power conversion efficiencies approaching 50% and power outputs as high as 10.2 W cm−2. These concepts can be expanded to other high-temperature photonic applications for the spectral control of thermal emission. © 2023 The Author(s)

关键词： Refractive index

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Exploring Shifted Domain Problem within MNIST Dataset

Exploring Shifted Domain Problem within MNIST Dataset

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2023 International Conference on computer science, Information Technology and engineering, ICCoSITE 2023

作者： Hidayaturrahman Heryadi, Yaya Lukas Suparta, Wayan Arifin, Yulyani Bina Nusatara University BINUS Graduate Program - Computer Science Computer Science Department Jakarta11480 Indonesia Faculty of Engineering Jakarta12930 Indonesia Institut Teknologi Nasional Yogyakarta Faculty of Industrial Technology Department of Electrical Engineering Yogyakarta55281 Indonesia

ISBN: (纸本)9798350320954

Domain data can be shifted in any direction so it will be shared in different distributions to its original domain. This could be a problem since the model was trained with different distributions. It is found that adversarial domain adaptation using domain adversarial neural networks (DANN) can help to solve this problem on some scale. DANN can minimize the discrepancy between source and target data so the model can work well in both domains. The experiment is done by utilizing MNIST dataset that shifted into some conditions. In a condition when the shifting of distribution is too far, DANN is struggling to maintain the knowledge extracted from source data which leads to underperformance in the source and target domain. In contrast, when the shifting is closer, DANN can easily fit the model so it can perform well in both domains. It proves DANN is one of the good approaches to performing domain adaptation in small discrepancies. © 2023 IEEE.

关键词： Adversarial Domain Adaptation Domain Shifting Problem MNIST Transfer Learning

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Investigating the Impact of Data Augmentation for Fine-Grained Grocery Product Classification Based on Vision Transformer

Investigating the Impact of Data Augmentation for Fine-Grain...

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2023 International Conference on Artificial Intelligence Robotics, Signal and Image Processing, AIRoSIP 2023

作者： Rahmania, Rissa Heryadi, Yaya Lukas, Lukas Suparta, Wayan Sonata, Ilvico Bina Nusantara University Binus Graduate Program Computer Science Computer Science Department Jakarta11480 Indonesia Faculty of Engineering Jakarta12930 Indonesia Institut Teknologi Nasional Yogyakarta Faculty of Industrial Technology Department of Electrical Engineering Yogyakarta55281 Indonesia

ISBN: (纸本)9798350327472

The existence of fine-grained image classification supporting smart retail provides effectiveness in recognizing products with high similarity. However, the generic classification method performs poorly in identifying products from a subordinate category. This paper aims to identify augmentation techniques to leverage the Vision Transformer (ViT) model to classify the fine-grained grocery product, which involves embedding patches and transformer encoders to extract the main features. First, we develop a fine-grained image dataset with ColorJitter, CutOut, and combining both augmentations. Secondly, we perform experiments and analysis of ViT size, embedded patch size and image size in the patch embedding process. Lastly, the ViT model are evaluated according to the image sizes 224, 384, and 512 in accuracy, loss, and confusion matrix. The highest accuracy was obtained at 0.9922. The ColorJitter and CutOut improved the confusion matrix in ViT-B/16 and ViT-L/16 with an image size of 384 and 512. The results show that both augmentations in the ViT model are able to distinguish fine-grained grocery products. © 2023 IEEE.

关键词： Embeddings

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