检索结果-内蒙古大学图书馆

IEEE International Conference on Radar

作者： Junseob Kim Sunghwan Cho Sunil Hwang Yeongyoon Choi Department of Electrical Engineering Korea Military Academy Republic of Korea Maneuver System Coordination and Contract Team Defense Acquisition Program Administration Republic of Korea Department of Electrical Engineering and Computer Science GIST Republic of Korea

This paper investigates the classification of low probability of intercept (LPI) radar signals by exploiting the intrinsic advantages of the Vision Transformer (ViT). Due to the characteristics of LPI radar signals, such as intrapulse modulation, wide frequency bands, and low transmission power, these signals are challenging to be detected and classified using traditional analytic methods. This has led to the adoption of various deep learning techniques to overcome these limitations. On the one hand, the ViT, originally developed for natural language processing, has demonstrated outstanding performance in computer vision by replacing the structure of the convolutional neural network (CNN) with the transformer, specifically leveraging self-attention. Therefore, this paper explores a method based on the ViT technique for classifying LPI signal images. The simulation results show that the proposed ViT method outperforms the traditional CNN method by 12.8% at −10dB SNR.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Phonon-Assisted Intertube Electronic Transport in an Armchair Carbon Nanotube Film

引用

Physical Review Letters 2023年第17期130卷 176303-176303页

作者： Davoud Adinehloo Weilu Gao Ali Mojibpour Junichiro Kono Vasili Perebeinos Department of Electrical Engineering University at Buffalo Buffalo New York 14228 USA Department of Electrical and Computer Engineering University of Utah Salt Lake City Utah 84112 USA Department of Electrical and Computer Engineering Rice University Houston Texas 77005 USA Department of Physics and Astronomy Rice University Houston Texas 77005 USA Department of Materials Science and NanoEngineering Rice University Houston Texas 77005 USA The Smalley-Curl Institute Rice University Houston Texas 77005 USA

The electrical conductivity of a macroscopic assembly of nanomaterials is determined through a complex interplay of electronic transport within and between constituent nano-objects. Phonons play dual roles in this situation: their increased populations tend to reduce the conductivity via electron scattering, while they can boost the conductivity by assisting electrons to propagate through the potential-energy landscape. We identified a phonon-assisted coherent electron transport process between neighboring nanotubes in temperature-dependent conductivity measurements on a macroscopic film of armchair single-wall carbon nanotubes. Through atomistic modeling of electronic states and calculations of both electronic and phonon-assisted junction conductances, we conclude that phonon-assisted conductance is the dominant mechanism for observed high-temperature transport in armchair carbon nanotubes. The unambiguous manifestation of coherent intertube dynamics proves a single-chirality armchair nanotube film to be a unique macroscopic solid-state ensemble of nano-objects promising for the development of room-temperature coherent electronic devices.

关键词： electrical conductivity Electron-phonon coupling Nanotubes

来源：评论

学校读者我要写书评

暂无评论

Hybrid photonic integration for multifunctional laser systems on a chip-scale platform

Hybrid photonic integration for multifunctional laser system...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Siwei Zeng Xiaolei Zhao Yeyu Zhu Lance Sweatt Lin Zhu Department of Electrical and Computer Engineering Center for Optical Materials Science and Engineering Technologies Clemson University Clemson SC

We discuss our recent work in hybrid integration of III/V and Si3N4 PICs and demonstrate diode laser wavelength tuning and linewidth reduction, beam steering with multiple sources, coherent beam combining, and wavelen... 详细信息

ISBN: (数字)9781957171050

ISBN: (纸本)9781665466660

关键词： Industries Beam steering Power lasers Hybrid power systems Diode lasers System-on-chip Laser beams

来源：评论

学校读者我要写书评

暂无评论

The Impact of Hot Carrier Injection-Induced Device Degradation for Lower-Power FinFETs

引用

Journal of Electronic materials 2023年第2期52卷 1391-1399页

作者： Chen, Yu-Lin Yeh, Wen-Kuan Hsu, Heng-Tung Chen, Ke-Horng Lien, Der-Hsien Lin, Wen-Chin Yu, Tien-Han Chiu, Yu-Sheng Godwinraj, D. Godfrey, D. Wu, Chien-Hung International College of Semiconductor Technology National Yang Ming Chiao Tung University Hsinchu Taiwan Graduate Degree Program of College of Electrical and Computer Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan Institute of Electronics National Yang Ming Chiao Tung University Hsinchu Taiwan Institute of Microelectronics National Cheng Kung University Tainan Taiwan Department of ECE Amal Jyothi College of Engineering Kerala Kottayam India Department of Optoelectronics and Materials Engineering Chung Hua University Hsinchu Taiwan Department of Electronics and Communication Engineering Dayananda Sagar University Bengaluru India National Applied Research Laboratories Hsinchu Taiwan

The impact of hot carrier injection (HCI) on the performance of standard and low-VT FinFETs are investigated and benchmarked with each other. For this investigation, these FinFETs were fabricated with various gate lengths (L) from 16 to 36 nm. HCI-induced transconductance degradation in standard devices for gate length variations of 36 nm down to 16 nm was 75%, while it was 35% for low-VT devices. Similarly, the degradation of threshold voltage in standard devices for gate length variations of 36 nm down to 16 nm was 39%, while it was 36% for low-VT device. In this work, as the device is subject to HCI, we found that: (1) short-channel devices cause severe degradation on the threshold voltage and transconductance (gm) compared to long-channel devices, owing to the higher electric field for short-channel devices at the gate edge, (2) standard devices exhibit a more stable threshold voltage than that of low-VT power devices, since the TiN barrier layer prevents Al atom diffusion into the HfO2 layer, and (3) the transconductance efficiency of standard devices is better than that of low-VT power devices. Further, the lower-VT devices show lower transconductance degradation than standard devices. However, the transconductance degradation of the long-channel standard and low-VT devices are the same. Compared to short-channel low-VT devices, extended-channel standard devices are more immune to the HCI effect. © 2022, The Minerals, Metals & materials Society.

关键词： Threshold voltage

来源：评论

学校读者我要写书评

暂无评论

On the design and fabrication of nanoliter-volume hanging drop networks

引用

Microsystems & Nanoengineering 2024年第5期10卷 435-447页

作者： Matthew Wester Jongwon Lim Liliana Khaertdinova Sriya Darsi Neel Donthamsetti Glennys Mensing George Vasmatzis Panos Anastasiadis Enrique Valera Rashid Bashir Department of Bioengineering University of linois Urbana-ChampaignUrbanaIL 61801USA Nick Holonyak Jr.Micro and Nanotechnology Laboratory University of Ilinois Urbana-ChampaignUrbanaIL 61801USA Center for Individualized Medicine Mayo ClinicRochesterMN 55905USA Mayo-Illinois Alliance for Technology-Based Healthcare UrbanaIL 61801USA Department of Cancer Biology Mayo ClinicJacksonvilleFL 32224USA Carl R.Woese Institute for Genomic Biology University of Illinois at Urbana-ChampaignUrbanaIL 61801USA Biomedical Research Center Carle Foundation HospitalUrbanaIL 61801USA Cancer Center at Illinois University of Illinois at Urbana-ChampaignUrbanaIL 61801USA Department of Biomedical and Translation Science Carle Illinois College of MedicineUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA Chan Zuckerberg Biohub Chicago ChicagoIL 60642USA Department of Electrical and Computer Engineering University of Illinois at Urbana-ChampaignUrbanaIL 61801USA Department of Mechanical Science and Engineering University of Illinois at Urbana-ChampaignUrbanaIL 61801USA Department of Materials Science and Engineering University of Illinois at Urbana-ChampaignUrbanaIL 61801USA

Hanging drop cultures provide a favorable environment for the gentle,gel-free formation of highly uniform three-dimensional cell cultures often used in drug screening *** cell numbers can be limited,as with primary cells provided by minimally invasive ***,it can be beneficial to divide cells into miniaturized arrays of hanging drops to supply a larger number of ***,we present a framework for the miniaturization of hanging drop networks to nanoliter *** principles of a single hanging drop are described and used to construct the fundamental equations for a microfluidic system composed of multiple connected *** equations for the hanging drop as a nonlinear capacitive element are derived for application in the electronic-hydraulic analogy,forming the basis for more complex,time-dependent numerical modeling of hanging drop *** is supplemented by traditional computational fluid dynamics simulation to provide further information about flow conditions within the wells.A fabrication protocol is presented and demonstrated for creating transparent,microscale arrays of pinned hanging drops.A custom interface,pressure-based fluidic system,and environmental chamber have been developed to support the ***,fluid flow on the chip is demonstrated to align with expected behavior based on the principles derived for hanging drop *** with the system and potential areas for improvement are *** paper expands on the limited body of hanging drop network literature and provides a framework for designing,fabricating,and operating these systems at the microscale.

关键词： networks system hanging

来源：评论

学校读者我要写书评

暂无评论

Novel NBA Fantasy League driven by Engineered Team Chemistry and Scaled Position Statistics

Novel NBA Fantasy League driven by Engineered Team Chemistry...

引用

IEEE International Conference on Big Data

作者： Ganesh Arkanath Nishad Gupta Hasan Kurban Parichit Sharma K R Madhavan Elham Khorasani Buxton Mehmet M. Dalkilic Computer Science Department Indiana University Bloomington IN US Electrical and Computer Engineering Texas A&M University at Qatar Doha Qatar Data Science Program Indiana University Bloomington IN US Computer Science Department University of Illinois Springfield IL US

Fantasy Sports has a current market size of ${\$}$27B and is expected to grow more than ${\$}$84B in less than a decade. The intent is to create virtual teams that somehow reflect what would happen if the constituent players actually played in a team. Using individual player and team statistics, models can be trained to predict an outcome. But fans are left wanting more. To achieve a more realistic outcome, aspects of what makes live teams win need to be included: (1) transforming player statistics to reflect their relative importance with respect to a player position; (2) team chemistry (TC). In this work, we show a novel characterization of relative position statistics and a new description of TC. Drawn from the NBA’s API, we form a data set to determine whether a fantasy team makes the playoffs using almost two dozen features, including TC. Various Machine Learning models are trained on this data and the best-performing model is offered to the users through a web service. Users can not only inspect fantasy teams and their TC but can also simulate their match-ups with existing 2023 NBA teams and utilize performance visualizations to help improve their team creation process. Our web service can be accessed at https://***/fantasyleague/, and the source code can be found at https://***/gany-15/nbafan.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Deep Learning Networks for Handwritten Bangla Character Recognition

引用

IAENG International Journal of Applied Mathematics 2023年第4期53卷 1页

作者： Begum, H. Islam, M.M. Eva, H.S. Emon, N.H. Siddique, F.A. Department of Electrical and Electronic Engineering East West University A/2 Aftabnagar Dhaka Bangladesh Department of Electrical Engineering and Computer Science South Dakota State University United States Engineering and Design Department Reverie Power and Automation Engineering Limited Bangladesh Program in Smart System Integrated Solutions Aalto University Finland

In recent years, deep convolutional networks (DCNN) have gained popularity for different classification (or recognition) tasks. In this paper, three well known DCNN structures were used, i.e., AlexNet, SqueezeNet and GoogLeNet, and their classification performances in recognizing handwritten Bangla isolated characters were compared. These networks have simpler structures compared to the recent DCNNs. Experiments on a standard Bangla database revealed that the overall performance of GoogLeNet is slightly better than the other two networks. Further analysis using saliency maps of the test samples revealed the important features that are learned by the networks for classifying characters. This information led us to understand why classification of some samples fail and how to rectify these. © (2023), (International Association of Engineers). All Rights Reserved.

关键词： Classification (of information)

来源：评论

学校读者我要写书评

暂无评论

Investigating the influence of environmental conditioning on epoxy resins at quasistatic and high strain rates for material operating limit 36

Investigating the influence of environmental conditioning on...

引用

36th Technical Conference of the American Society for Composites 2021: Composites Ingenuity Taking on Challenges in Environment-Energy-Economy, ASC 2021

作者： Doshi, Sagar M. Manoharan, Nithinkumar Haque, Bazle Z. Deitzel, Joseph M. Gillespie, John W. Center for Composite Materials University of Delaware NewarkDE19716 United States Department of Materials Science and Engineering Department of Mechanical Engineering Department of Civil and Environmental Engineering Department of Computer and Electrical Engineering University of Delaware NewarkDE19716 United States

ISBN: (纸本)9781713837596

Epoxy resin-based composite panels used for armors may be subjected to a wide range of operating temperatures (-55℃ to 76℃) and high strain rates on the order of 103-104 s-1. Over the life cycle, various environmental factors also affect the resin properties and hence influence the performance of the composites. Therefore, it is critical to determine the stress-strain behavior of the epoxy resin over a wide range of strain rates and temperatures for accurate multi-scale modeling of composites and to investigate the influence of environmental aging on the resin properties. Additionally, the characterization of key mechanical properties such as yield stress, modulus, and energy absorption (i.e. area under the stress-strain curve) at varying temperatures and moisture can provide critical data to calculate the material operating limits. In this study, we characterize mechanical properties of neat epoxy resin, SC-15 (currently used in structural armor) and RDL-RDC using uniaxial compression testing. RDL-RDC, developed by Huntsman Corporation, has a glass transition temperature of ~ 120℃, compared to ~ 85℃ of SC-15. A split Hopkinson pressure bar is used for high strain rate testing. Quasistatic testing is conducted using a screw-driven testing machine (Instron 4484) at 10-3 s-1 and 10-1 s-1 strain rates and varying temperatures. The yield stress is fit to a modified Eyring model over the varying strain rates at room temperature. For rapid investigation of resistance to environmental aging, accelerated aging tests are conducted by immersing the specimens in 100℃ water for 48 hours. Specimens are conditioned in an environmental chamber at 76 ℃ and 88% RH until they reach equilibrium. Tests are then conducted at five different temperatures from 0℃ to 95℃, and key mechanical properties are then plotted vs. temperature. The results presented are an important step towards developing a methodology to identify environmental operating conditions for composite ground vehicle appli

关键词： Epoxy resins

来源：评论

学校读者我要写书评

暂无评论

Inorganic nanoparticles for photothermal treatment of cancer

引用

Journal of materials Chemistry B 2024年第15期12卷 3569-3593页

作者： Thirumurugan, Senthilkumar Ramanathan, Susaritha Muthiah, Kayalvizhi Samuvel Lin, Yu-Chien Hsiao, Michael Dhawan, Udesh Wang, An-Ni Liu, Wai-Ching Liu, Xinke Liao, Mei-Yi Chung, Ren-Jei No. 1 Sec. 3 Zhongxiao E. Rd Taipei10608 Taiwan School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore639798 Singapore Genomics Research Center Academia Sinica Taipei115 Taiwan Department and Graduate Institute of Veterinary Medicine School of Veterinary Medicine National Taiwan University Taipei10617 Taiwan Centre for the Cellular Microenvironment Division of Biomedical Engineering James Watt School of Engineering Mazumdar-Shaw Advanced Research Centre University of Glasgow GlasgowG116EW United Kingdom Scrona AG Grubenstrasse 9 Zürich8045 Switzerland Faculty of Science and Technology Technological and Higher Education Institute of Hong Kong New Territories Hong Kong999077 Hong Kong College of Materials Science and Engineering Chinese Engineering and Research Institute of Microelectronics Shenzhen University Shenzhen518060 China Department of Electrical and Computer Engineering National University of Singapore Singapore117583 Singapore Department of Applied Chemistry National Pingtung University Pingtung90003 Taiwan Taipei106 Taiwan

In recent years, inorganic nanoparticles (NPs) have attracted increasing attention as potential theranostic agents in the field of oncology. Photothermal therapy (PTT) is a minimally invasive technique that uses nanoparticles to produce heat from light to kill cancer cells. PTT requires two essential elements: a photothermal agent (PTA) and near-infrared (NIR) radiation. The role of PTAs is to absorb NIR, which subsequently triggers hyperthermia within cancer cells. By raising the temperature in the tumor microenvironment (TME), PTT causes damage to the cancer cells. Nanoparticles (NPs) are instrumental in PTT given that they facilitate the passive and active targeting of the PTA to the TME, making them crucial for the effectiveness of the treatment. In addition, specific targeting can be achieved through their enhanced permeation and retention effect. Thus, owing to their significant advantages, such as altering the morphology and surface characteristics of nanocarriers comprised of PTA, NPs have been exploited to facilitate tumor regression significantly. This review highlights the properties of PTAs, the mechanism of PTT, and the results obtained from the improved curative efficacy of PTT by utilizing NPs platforms. © 2024 The Royal Society of Chemistry

关键词： Cancer cells

来源：评论

学校读者我要写书评

暂无评论

Temperature Dependent Low-Frequency Noise Characteristics of NiOx/β-Ga2O3 p-n Heterojunction Diodes

arXiv

引用

arXiv 2023年

作者： Ghosh, Subhajit Mudiyanselage, Dinusha Herath Kargar, Fariborz Zhao, Yuji Fu, Houqiang Balandin, Alexander A. Department of Electrical and Computer Engineering University of California RiversideCA92521 United States School of Electrical Computer and Energy Engineering Arizona State University TempeAZ85287 United States Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Department of Materials Science and Engineering University of California Los AngelesCA90095 United States

We report on the temperature dependence of the low-frequency electronic noise in NiOx/βGa2O3 p-n heterojunction diodes. The noise spectral density is of the 1/f-type near room temperature but shows signatures of Lorentzian components at elevated temperatures and at higher current levels (f is the frequency). We observed an intriguing non-monotonic dependence of the noise on temperature near T = 380 K. The Raman spectroscopy of the device structure suggests material changes, which results in reduced noise above this temperature. The normalized noise spectral density in such diodes was determined to be on the order of 10–14 cm2/Hz (f = 10 Hz) at 0.1 A/cm2 current density. In terms of the noise level, NiOx/β-Ga2O3 p-n diodes occupy an intermediate position among devices of various designs implemented with different ultra-wide-bandgap semiconductors. The obtained results are important for understanding the electronic properties of NiOx/β-Ga2O3 heterojunctions and contribute to the development of noise spectroscopy as the quality assessment tool for new electronic materials and device technologies. Copyright © 2023, The Authors. All rights reserved.

关键词： Electronic properties

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：