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检索条件"任意字段=Conference on Advances in Optical Data Storage Technology"

共 5078 条记录，以下是4811-4820 订阅

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Analysis of electron behaviour in polymeric films during electronic irradiation

Analysis of electron behaviour in polymeric films during ele...

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conference on Electrical Insulation and Dielectric Phenomena, (CEIDP)

作者： V. Griseri C. Perrin K. Fukunaga T. Maeno D. Payan L. Levy C. Laurent Laboratoire de Génie Electrique de Toulouse Toulouse France Toulouse France National Institute of Information and Communications Technology Koganei Tokyo Japan Office National d'Etudes Spatiales Toulouse France

Charges can appear on spacecraft surface via various processes including conduction, irradiation, ionisation and polarisation. The accumulation of charges can leads to the creation of an electric field that eventually prevents further charge storage. However, a spacecraft can only tolerate a limited range of electric potential and currents. In the present case, we are studying the electron behaviour in polymeric films such as Teflon/spl reg/ during electronic irradiation. This material is currently used in the space industry. Our aim is to get a better understanding on charge storage, conduction and relaxation during irradiation and also during the relaxation taking especially into account the effect of the electron beam energy, the irradiation time and the flux density. Results obtained from pulsed electro-acoustic, surface current and surface potential data are analysed and compared with theoretical data.

关键词： Polymer films Electrons Aerospace electronics Space vehicles Ionization optical polarization Aircraft manufacture Electric potential Conducting materials Aerospace industry

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Carbon Emission Prediction on the Power Generation Side Based on the CNN-LSTM Model

Carbon Emission Prediction on the Power Generation Side Base...

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Clean Energy storage and Power Engineering (CESPE), International conference on

作者： Yuanmei Zhang Huixu Xiao Minglei Jiang Weiguo Hu Power Economic Research Institute Jilin Electric Power Co.Ltd. Changchun China State Grid Jilin Electric Power Co. Ltd. Changchun China

ISBN: (数字)9798331511708

ISBN: (纸本)9798331511715

As computer technology advances at a breakneck pace, its applications are becoming more and more prevalent in diverse fields. Particularly in addressing global environmental issues, computer modeling and data analysis techniques provide robust support for accurate predictions and decision-making. To address a series of issues related to global warming caused by greenhouse gases, China has proposed the “dual carbon” goals to achieve carbon emission reductions across various industries. As the single industry with the highest proportion of carbon emissions in China, the carbon reduction process of the power industry will directly affect the further realization of the “dual carbon” goals. This paper analyzes and selects the main factors affecting carbon emissions based on the carbon emission data of the power industry in a certain area from 1995 to 2022. Subsequently, it constructs a Convolutional Neural NetworksLong Short-Term Memory (CNN-LSTM) model and a STIRPAT model. By comparing the fitting degree R2 and the Mean Absolute Percentage Error (MAPE), the model with higher precision is selected for scenario prediction, resulting in forecasts of future carbon emissions from the power generation side under different scenarios.

关键词： Economics Power engineering Power supplies Carbon dioxide Predictive models Wind power generation Power industry data models Trajectory Convolutional neural networks Long short term memory Climate change

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Binarized Neural Network Based On FPGA To Realize Handwritten Digit Recognition

Binarized Neural Network Based On FPGA To Realize Handwritte...

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Information technology,Big data and Artificial Intelligence (ICIBA), International conference on IEEE International conference on

作者： Peng Wang Jiayu Song Yinquan Peng Guipeng Liu National Demonstration Center for Experimental Physics Education School of Physical Science and Technology Lanzhou University Lanzhou China Institute of Microelectronics School of Physics Science and Technology Lanzhou College of Optical and Electronic Technology China Jiliang University Hangzhou China

ISBN: (数字)9781728152240

ISBN: (纸本)9781728152257

We trained a binarized neural network (BNN) which can be used for handwritten digit recognition on software, and implemented this BNN on the FPGA using software training parameters without the help of high-level synthesis (HLS). This BNN contains an input layer, two convolutional layers, two pooling layers, a fully connected layer and an output layer. The first convolution layer contains 10 convolution kernels, each of which has a size of 5 * 5. Each convolution kernel uses 25 arithmetic units to calculate in parallel, the calculation of 10 convolution kernels is also parallel. The size of the convolution kernels in the second convolutional layer is 38 * 3, the input and output channels are 10, we use 900 XNOR gates for calculation here. Compared with the traditional CNN, it does not need to consume DSP resources and requires less storage space for the parameters. And the power consumption obtained by Quartus ii software of this BNN is 0.136 W. The time to identify a picture is 18 μs, and the accuracy rate is 85% without the batch normalize (BN) layer.

关键词： Field programmable gate arrays Convolution Kernel Software Biological neural networks Training Handwriting recognition

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Software for data acquisition AMC module with PCI Express interface

Software for data acquisition AMC module with PCI Express in...

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International conference on Mixed Design of Integrated Circuits and Systems (MIXDES)

作者： Sergiusz Szachowalow Grzegorz Jablonski Dariusz Makowski Lukasz Butkowski Waldemar Koprek Stefan Simrock Department of Microelectronics and Computer Science Technical University of Lodz Lodz Poland Institute of Electronic Systems Warsaw University of Technology Warsaw Poland Deutsches Electronen Synchrotron DESY Hamburg Germany

Free Electron Laser in Hamburg (FLASH) and X-Ray Free Electron Laser (XFEL) are linear accelerators that require a complex and accurate Low Level Radio Frequency (LLRF) control system. Currently working systems are based on aged Versa Module Eurocard (VME) architecture. One of the alternatives for the VME bus is the Advanced Telecommunications and Computing Architecture (ATCA) standard. The ATCA based LLRF controller mainly consists of a few ATCA carrier boards and several Advanced Mezzanine Cards (AMC). AMC modules are available in variety of functions such as: ADC, DAC, data storage, data links and even CPU cards. This paper focuses on the software that allows user to collect and plot the data from commercially available TAMC900 board.

关键词： data acquisition X-ray lasers Free electron lasers Telecommunication control Computer architecture Linear accelerators Radio frequency optical control Radio control Control systems

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Large area Apollo(R) module performance and reliability

Large area Apollo(R) module performance and reliability

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conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists conference - 2000 (Cat. No.00CH37036)

作者： D. Cunningham K. Davies L. Grammond E. Mopas N. O'Connor M. Rubcich M. Sadeghi D. Skinner T. Trumbly BP Solar Fairfield CA USA

ISBN: (纸本)0780357728

This paper describes the work performed at BP Solar, Fairfield, California highlighting advances in the Apollo(R) CdTe technology. The paper describes the eight basic process steps involved in making the module. The state of the art CdTe reactor is also detailed with its sophisticated design and control features. Various techniques were utilized to characterize the semiconductor materials. Using AFM and X-ray diffraction, the morphology and crystallographic properties of the films were investigated. This work showed the grain structure was small, even after post deposition air anneals. optical characterization determined quantum efficiency of the device and helped optimize window layer thickness for record performances. NREL confirmed module efficiency of 10.8% is reported for a 0.55m/sup 2/ module and a maximum power of 91.5 W for a 0.94m/sup 2/ monolithic module. Indoor stress testing and outdoor performance test beds are also described. The data presented shows good indoor stability at various stress conditions.

关键词： optical films Stress Testing Inductors Semiconductor materials X-ray diffraction optical diffraction Morphology Crystallography Semiconductor films

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OCTNet: Leveraging VGG16 for Automated Classification of Retina Health from OCT Scans

OCTNet: Leveraging VGG16 for Automated Classification of Ret...

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Pioneering Developments in Computer Science & Digital Technologies (IC2SDT), International conference on

作者： Poonam Shourie Vatsala Anand Deepak Upadhyay Swati Devliyal Sheifali Gupta Computer Science & Engineering Chitkara University Institute of Engineering and Technology Chitkara University Punjab India Electronics and Communication Engineering Chitkara University Institute of Engineering and Technology Chitkara University Punjab India Computer Science and Engineering Graphic Era Hill University Dehradun Uttarakhand India Computer Science & Engineering Graphic Era Deemed to be University Dehradun Uttarakhand India

ISBN: (数字)9798350365016

ISBN: (纸本)9798350365023

The healthy vision is seriously threatened by retinal diseases include drusen, diabetic macular edoema, and choroidal neovascularization (CNV). Immediate identification and treatment are essential to reducing their effects and retain healthy lives. In this work, model provide a deep learning method based on the VGG16 architecture for the automatic identification of retinal injury using a dataset of retinal OCT (optical coherence tomography) pictures. retinal OCT images into these four categories by preprocessing the images and training a VGG16 convolutional neural network (CNN) model. The retinal OCT dataset is used to fine-tune the pretrained VGG16 model, which is well-known for its efficiency in image classification tasks, so that it can adjust to the unique properties of retinal pictures. By means of comprehensive testing, the model assesses the accuracy performance of the proposed model across several epochs. The suggested model improves validation accuracy from 87.89% to 92.01% and training accuracy from 97.22% to 100%. The findings show that the VGG16-based method is helpful in accurately detecting retinal abnormalities, providing ophthalmologists with a possible tool to help them diagnose retinal illnesses quickly and reliably. By offering a dependable and automated technique for identifying retinal damage from OCT pictures, this work advances computer-aided diagnosis tools for retinal illnesses and eventually advances early intervention and better patient outcomes and hence improve quality of life.

关键词： Training Accuracy optical coherence tomography Training data Retina Market research data models Convolutional neural networks Diseases Testing

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advances in Glaucoma Detection Through Machine Learning technology

Advances in Glaucoma Detection Through Machine Learning Tech...

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Artificial Intelligence for Innovations in Healthcare Industries (ICAIIHI), International conference on

作者： Rushikesh Burle Sanskruti Gaurkhede Leelkanth Dewangan Artificial Intelligence and Machine Learning Faculty of Engineering and Technology Datta Meghe Institute of Higher Education and Research Wardha Mahartashtra India Computer science And Design Faculty of Engineering and Technology Datta Meghe Institute of Higher Education and Research Wardha Mahartashtra India Artificial Intelligence and Data science Faculty of Engineering and Technology Datta Meghe Institute of Higher Education and Research Wardha Maharashtra India

In the event that glaucoma is not treated promptly, blindness may become permanent. It ranks second among the factors that might lead to blindness in the eyes. One example of a recent imaging technology that looks within the eye is the fundus camera. Glaucoma is diagnosed using a variety of techniques, such as the retinal nerve fibre layer analyzer, The Topcon image net technique and optical coherence tomography. Despite its expensive cost and the dearth of available research in this field, the optic cup to disc ratio is used to diagnose glaucoma. The degree of glaucomatous damage is mostly determined by the appearance of the optic cup. The beaker slowly gets better and inhabits most of the judgement as the glaucoma becomes worse. If glaucoma is not pickled trendy a timely manner, blindness may become irreversible. It is the second most common cause of ocular blindness. A contemporary imaging tool called the fundus camera is utilised to view within the eye. Among the methods used to diagnose glaucoma include the retinal nerve fibre layer analyzer, optical coherence tomography, and the Topcon image net approach. Despite its high cost and paucity of research, glaucoma is diagnosed using the optic cup to discus relation. The degree of glaucomatous damage is mostly determined by the appearance of the optic cup. The cup expands as glaucoma progresses until it finally occupies the majority of the eye.

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A New Node Architecture for Scalable Wavelength Label Switching Networks Using MPLS

A New Node Architecture for Scalable Wavelength Label Switch...

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2000 2nd International conference on Microwave and Millimeter Wave technology

作者： Rong Xu YueFeng Ji Qian Gong Peida Ye P.O.Box 128 Optical Communications Center Beijing University of Posts and Telecommunications

This paper presented a novel approach integrated recent advances in MPLS traffic engineering with wavelength switch/routing technologies to achieve optical interconnect for IP-centric data *** node architecture for scalable wavelength label switching networks(WLSnet) is proposed,which supported label switching and wavelength *** paper showed this network add more flexible routing,traffic engineering,and explicit routes via MPLS,is the best way to realize optical interconnects and to reduce management complication and cost of *** have shown an approach to dynamically interconnect routers via wavelength,including a bypass routing in the node,by this way new wavelengths may easily be introduced to the network at a reasonable *** approach also paves the way for the eventual incorporation of DWDM multiplexing capabilities in IP routers,and establishes a preliminary framework for the notion of an optical Internet.

关键词： A New Node Architecture for Scalable Wavelength Label Switching Networks Using MPLS WDM

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Three-Dimensional Terahertz Metasurfaces for Ultrafast All-optical Logic Operations with Temporal Properties

Three-Dimensional Terahertz Metasurfaces for Ultrafast All-O...

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IEEE International conference on Plasma Science (ICOPS)

作者： H. Yuan J. Liang Air Force Engineering University Air Defense and missile Defense Academy Shaanxi Xi’an China

ISBN: (数字)9798350360912

ISBN: (纸本)9798350360929

Terahertz metadevices play a crucial role in driving major breakthroughs in terahertz technology, especially in the fields of communications, sensor, and computing [1–5] . However, in order to realize multifunction integration of the current terahertz metadevice, the inevitable introduction of complex excitation mechanism leads to large volume design and the information computing and processing capacity has not been greatly improved. In order to overcome these problems, in this paper a three-dimensional simple terahertz metasurface for three-bit logic operations triggered by a single excitation field is proposed. By introducing an active material silicon layer combined with an anisotropic metal structure, a twodimensional active terahertz metasurface has been realized under optically pumped excitation. In addition, due to the relaxation characteristics of the silicon photoactive layer, the metasurface reintroduces the time dimension to realize the three-dimensional active terahertz metasurface. Therefore, two kinds of three-bit logic gates “AND” and “NAND” are obtained from the metasurface in two wide bands by utilizing the optical pumping strength, polarization characteristic and time-varying characteristic. This work may promote the miniaturization, excitation simplicity and functional diversification of current computing integrated devices, paving the way for further improvement of terahertz computing, data storage and information processing capabilities in the future.

关键词： Plasma properties optical polarization Terahertz materials Metasurfaces Silicon optical pumping optical materials

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Power efficiency of 40 Gbit/s and 100 Gbit/s optical ethernet

Power efficiency of 40 Gbit/s and 100 Gbit/s optical etherne...

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International conference on Transparent optical Networks

作者： Slavisa Aleksic Institute of Broadband Communications University of Technology Vienna Vienna Austria

ISBN: (纸本)9781424448258

Recently, there have been significant research and standardization efforts to specify and implement 40 and 100 Gigabit Ethernet systems (40 GbE and 100 GbE). The proposals for the physical layer range from parallel transmission using a number of optical fibers or a number of wavelength channels within a single fiber to serial transmission over a single wavelength channel by exploiting advanced modulation formats and high-speed data processing. Since power consumption is becoming the main limiting factor in scaling current switches, routers and data centers to very high capacities, it would be of interest to see if the proposed 40 Gbit/s and 100 Gbit/s Ethernet physical-layer transport options could contribute to reduce the total power consumption of high-performance networking and storage systems. This communication addresses power efficiency of different realization options for optical 40 Gbit/s and 100 Gbit/s Ethernet by considering five different realizations of line cards, three of them comprising 100 GbE ports and two other comprising 40 GbE ports. The 100 GbE options include parallel transmission over either 10 wavelength channels (10 times 10 G) or 4 channels (4 times 25 G) as it is expected to be defined in the 100 GBASE-ER10 and 100 GBASE-ER4 specifications of the future IEEE 802.3 ba standard [1], respectively. For the implementation of serial transmission at 100 Gbit/s (1 times 100 G) we consider single-polarization differential quadrature phase shift keying (DQPSK) format [2]. Similarly, 40 GbE systems include both serial option (1 x 40 G) that comprises electronic 1:4 muxes and demuxes and parallel transmission over 4 channels (4 times 10 G), analogous to the drafts of the 40 GBASE-LR4 and 40 GBASE-LR specifications, respectively. We estimated total power consumption of those systems by using a model that includes all functional blocks needed to implement Ethernet line cards and switches as well as realistic data of power consumption obtained from compo

关键词： Ethernet networks Switches Energy consumption High speed optical techniques Physical layer optical fibers Energy efficiency Standardization Proposals Modulation

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