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International conference on Recent advances in Space Technologies (RAST)

作者： Sefer Kurnaz Rustam B. Rustamov The Aeronautics and Space Technologies Institute Air Force Academy Istanbul Turkey International Astronautical Federation Baku Azerbaijan

Today availability of using the high resolution of space imagery creates a positive environment on application of space technology for monitoring of integrated systems in different areas of industry and commercial purposes. They are an airborne, unmanned aerial vehicles (UAV) and satellite Synthetic Aperture Radar and LIDAR multi-spectral and hyper-spectral sensors. One of the advance methods of feasibility study of appropriate services for monitoring of integration systems is based on remote sensing data and GIS developments. Objective of this approach is to improve safety, security aspects of integration systems, reduce survey costs and improve transportation and transmission efficiency through an increased monitoring frequency. Conceptually monitoring the integration system is structured into four main system components: (1) the Pipeline Operator System (POS), which is the part of the monitoring system which is used by the pipeline operator for delivery and handling of alarms and for specifying the monitoring characteristics for different parts of the pipeline network. (2) the Pipeline Information Management System (PEMS), which stores all relevant information on the pipeline network, the environment around it, and the integrity monitoring and which provides analyses and scheduling functionalities for the pipeline operator. The PIMS also includes an alarm production system, which decides what hazards should be considered as alarms. (3) the Hazard Extraction System (HES), which extracts the hazard report information out of the basic remote sensing imagery layers, using advanced image interpretation techniques. (4) the imagery Collection System (ICS), which collects the required remote sensing imagery with a suit of both spaceborne and airborne platforms and different types of sensors, conform the monitoring priorities. In the ICS all these means are scheduled optimally conform the specified priorities of the pipeline operators and the weather and season conditions

关键词： Remote monitoring Earth Geographic Information Systems Pipelines Satellites Space technology Laser radar Hazards Spaceborne radar optical sensors

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A Parallel Algorithm and Scalable Architecture for Routing in Beneš Networks

A Parallel Algorithm and Scalable Architecture for Routing i...

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IEEE Annual Joint conference: INFOCOM, IEEE Computer and Communications Societies

作者： Rami Zecharia Yuval Shavitt School of Electrical Engineering Tel-Aviv University Israel

ISBN: (数字)9798350383508

ISBN: (纸本)9798350383515

Beneš/CLOS architectures are common scalable interconnection networks widely used in backbone routers, data centers, on-chip networks, multi-processor systems, and parallel computers. Recent advances in Silicon Photonic technology, especially MZI technology, have made Beneš networks a very attractive scalable architecture for optical circuit *** routing algorithms for Beneš networks were developed starting with linear algorithms having time complexity of O(N log 2 N) steps. Parallel routing algorithms were developed to satisfy the stringent timing requirements of high-performance switching networks and have time complexity of O((log 2 N) 2 ).However, their implementation requires O(N 2 log 2 N) wires (termed connectivity complexity), and thus are difficult to *** present a new routing algorithm for Beneš networks combined with a scalable hardware architecture that supports full and partial input permutations. The processing time of the algorithm is limited to O((log 2 N) 2 ) steps (iterations) by potentially forfeiting routing of a few input demands; however achieves close to 100% utilization for both full and partial input permutations. The algorithm and architecture allow a reduction of the connectivity complexity to O(N 2 ), a logN improvement over previous *** prove the algorithm correctness, and analyze its performance analytically and with large scale simulations.

关键词： Computers optical switches Wires Computer architecture Routing Hardware Complexity theory

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On the Use of Neural Text Generation for the Task of optical Character Recognition

On the Use of Neural Text Generation for the Task of Optical...

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ACS/IEEE International conference on Computer Systems and Applications

作者： Mahnaz Mohammadi Sardar Jaf Andrew Stephen McGough Toby P. Breckon Peter Matthews Georgios Theodoropoulos Boguslaw Obara Dept. of Computer Science Durham University UK School of Computer Science Sunderland University UK School of Computing Newcastle University UK Dept. of Computer Science and Eng. Southern University of Science and Technology China

ISBN: (数字)9781728150529

ISBN: (纸本)9781728150536

optical Character Recognition (OCR), is extraction of textual data from scanned text documents to facilitate their indexing, searching, editing and to reduce storage space. Although OCR systems have improved significantly in recent years, they still suffer in situations where the OCR output does not match the text in the original document. Deep learning models have contributed positively to many problems but their full potential to many other problems are yet to be explored. In this paper we propose a post-processing approach based on the application deep learning to improve the accuracy of OCR system (minimizing the error rate). We report on the use of neural network language models to accomplish the task of correcting incorrectly predicted characters/words by OCR systems. We applied our approach to the IAM handwriting database. Our proposed approach delivers significant accuracy improvement of 20.41% in F-score, 10.86% in character level comparison using Levenshtein distance and 20.69% in document level comparison over previously reported context based OCR empirical results of IAM handwriting database.

关键词： optical character recognition software Predictive models Neural networks Context modeling data models databases Vocabulary

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Molecular mobility and transitions in complex organic systems studied by shear force microscopy

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NANOtechnology 2007年第4期18卷 44009-1-44009-页

作者： Gray, Tomoko Killgore, Jason Luo, Jingdong Jen, Alex K. Y. Overney, Rene M. Univ Washington Dept Chem Engn Seattle WA 98195 USA Univ Washington Dept Mat Sci & Engn Seattle WA 98195 USA

In this paper, we discuss novel nanoscale experimental approaches involving shear forces to investigate inter- and intramolecular mobilities, and their effect on mass and electronic transport, and material deformation properties. We review the non-scanning method of shear modulation force microscopy (SM-FM) used for glass transition analysis, and introduce heated tip atomic force microscopy (HT-AFM) for thermomechanical analysis of material interfaces. The dynamics and kinetics in organic thin films that are typically revealed by the activation energies related to molecular relaxations are determined with intrinsic friction analysis (IFA). Both SM-FM and IFA are applied to optimize the poling efficiency of organic non-linear optical materials involving chromophores, used for photonic devices. They also provide information about intramolecular relaxation properties. A shear force analysis involving HT-AFM was used to investigate the interfacial strength of silica nanoparticles and poly(trimethylsilylpropyne), which are known to form a reverse-selective membrane nanocomposite system.

关键词： NONLINEAR-optical POLYMERS data-storage SYSTEM GLASS-TRANSITION FILLEDPOLY(1-TRIMETHYLSILYL-1-PROPYNE) NANOCOMPOSITE MEMBRANES TEMPERATURE DEPENDENCE MECHANICAL-PROPERTIES AMORPHOUS POLYMERS HIGHLY EFFICIENT GAS-PERMEABILITY

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HRDFS Design of High-resolution Red-ray optical Disk Authoring System

HRDFS Design of High-resolution Red-ray Optical Disk Authori...

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2010 International conference on Semiconductor Laser and Photonics (ICSLP 2010)

作者： Linyi Li, Chenxi H., Jianpin Xiong, and Cheng Ma Dep. of Precision Instrument and Mechanology Tsinghua University Haidian Distric,t Beijing, 100084, P.R.China

One effective implementation of the High- resolution Red-ray optical Disk File System (HRDFS), which is used for next generation optical storage system’s authoring software, is presented in this paper. Logic Format of HRDFS will be introduced firstly. And the algorithms of constructing HRD directory structure, writing directory structure and file data will be focused on. Moreover, the experimental results of testing this implementation will be shown to prove the correctness and effectiveness of the algorithms. Overall, the HRDFS module, which is employed for translating common media streams into those of HRD format, is the essential part of HRD Authoring System. As the design is based on the view of HRD authoring system, it partly provides an efficient implementation way for HRD authoring system.

关键词： HRD, file system, authoring system.

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Augmented Reality Keyboard Using Raspberry Pi

Augmented Reality Keyboard Using Raspberry Pi

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Multimedia Processing, Communication & Information technology (MPCIT), International conference on

作者： Reeja S R Likith Sai Reddy Chaitanya Sai Vittala Pujan Sashidhar Reddy Pranai Kumar Reddy Sundar Chaitanya VIT-AP University

ISBN: (数字)9798350375466

ISBN: (纸本)9798350375473

Augmented Reality (AR) technology has lately received considerable attention for its packages in diverse domains which includes gaming, education, and productivity tools. However, notwithstanding advances in AR input strategies, there remains an exceptional hole in the availability of cost-powerful and portable answers for fingers-unfastened typing in AR environments. Existing AR keyboards regularly depend upon steeply priced hardware or proprietary structures, restricting their accessibility and scalability. This research addresses these challenges by using developing an AR Keyboard the use of Raspberry Pi-a low-value, credit score-card-sized computer-coupled with OpenCV's Easy OCR model for actual-time optical person popularity (OCR). The AR Keyboard goals to improve consumer interplay and productivity with the aid of growing a digital keyboard projected onto actual-international surfaces, getting rid of the need for physical keyboards in certain contexts. The methodology involves putting in Raspberry Pi with crucial peripherals and integrating the Easy OCR (optical character recognition) version to correctly recognize textual content entered through the AR interface. The implementation covers data collection, pre-processing strategies, YOLO and OCR integration into the AR device. The overall performance of the device is evaluated based on accuracy, pace of recognition, and user delight through usability checking out. Results exhibit the feasibility and capability of the AR Keyboard, highlighting its potential for sensible use instances together with palms-free typing in augmented environments. This assignment contributes to the developing area of AR programs, supplying a value-effective and scalable answer for better human-pc interaction.

关键词： Productivity YOLO Accuracy optical character recognition Keyboards Hardware Adaptive optics Character recognition Usability Augmented reality

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High-Fidelity Strain and Temperature Measurements of Li-Ion Batteries Using Polymer optical Fiber Sensors

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JOURNAL OF THE ELECTROCHEMICAL SOCIETY 2022年第10期169卷 100508-100508页

作者： Bonefacino, Julien Ghashghaie, Sasan Zheng, Tianye Lin, Chun-Pang Zheng, Wenwei Blanquer, Laura Albero Huang, Jiaqiang Gervillie, Charlotte Tam, Hwa-Yaw Tarascon, Jean-Marie Boles, Steven T. Hong Kong Polytech Univ Dept Elect Engn Kowloon Hong Kong Peoples R China CNRS UMR 8260 Coll France Chim Solide & Energie Paris France Ctr Adv Reliabil & Safety Hong Kong Peoples R China Rutgers State Univ New Brunswick NJ USA GP Batteries Int Ltd 7-F16W Hong Kong Sci Pk Hong Kong Peoples R China FR CNRS 3459 Reseau Stockage Electrochim Energie RS2E F-80039 Amiens France Sorbonne Univ UPMC Paris 06 4 Pl Jussieu F-75005 Paris France Hong Kong Univ Sci & Technol Guangzhou Sustainable Energy & Environm Thrust Guangzhou 511400 Guangdong Peoples R China HKUST Shenzhen Hong Kong Collaborat Innovat Res I Shenzhen Guangdong Peoples R China Norwegian Univ Sci & Technol NTNU Fac Engn Dept Energy & Proc Engn Trondheim Norway

The convergence of fiber optic sensing with lithium-ion batteries holds great promise for observing key cell parameters in real time, which is essential to every level of decision making, from design and engineering to finance and management. optical sensors based on fiber Bragg gratings have recently been demonstrated as an ideal tool for measuring these metrics with sufficient temporal and spatial resolution. In this work, we extend the use of fiber Bragg gratings to polymeric optical fibers which have notably greater thermal and strain coefficients than their common silica counterparts. We demonstrate that a polymer optical fiber sensor paired with a silica-based sensor, both affixed to the external package of a lithium battery, can concurrently generate high fidelity temperature and volumetric expansion data through this non-invasive approach. The quality of this data allows for further assessments as mechanical characteristics associated with dimensional changes of cells may indicate more than simple charging or discharging during cycling. While internal monitoring remains essential for future diagnostics, external monitoring using polymer fiber sensors offers a straightforward, superficial, and cost-effective sensing solution that opens a new avenue for real-time cell assessment, prognostics, and packaging considerations.

关键词： Sensors Batteries Li-ion Energy storage Optoelectronics

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Privacy-Secure and Decentralized Biometric Authentication Models Using Federated Learning Frameworks

Privacy-Secure and Decentralized Biometric Authentication Mo...

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IEEE International conference on System, Computation, Automation and Networking (ICSCAN)

作者： Mathivanan. P K. Mahalakshmi Faculty of Information and Communication Engineering Anna university Chennai Department of Computer Science and Engineering KIT - Kalaignarkarunanidhi Institute of Technology Coimbatore India

ISBN: (数字)9798331510022

ISBN: (纸本)9798331510039

A biometric identifier, in contrast to other identifiers used for authentication, is a quantitative evaluation of an individual's physical attributes that is successfully used to confirm or validate the identification. Because of its remarkable and consistent texture variation, iris recognition is thought to be the most dependable biometric recognition. Concerns about security, authentication, and identification are growing in importance across all domains as technology advances daily. High-security applications use these unique patterns for iris recognition. To increase the security of biometric applications without jeopardizing individual privacy, this research suggests a novel FL technique for privacy-preserving iris detection. Traditional biometric systems rely on centralised data storage and processing, which threatens data security and misuse. Federated Learning: decentralized model training that allows multiple federated clients (like mobile devices or edge servers) to collaboratively train a global model without sharing their raw iris data. We explore how this architecture can be applied to iris detection systems, maintaining accuracy while mitigating privacy risks. Our method ensures that iris features are learned locally on individual devices, and only encrypted model updates are shared with the central server. To strengthen privacy, we incorporate differential privacy and secure aggregation techniques to prevent data leakage during model training. Experimental results demonstrate the effectiveness of the proposed framework in maintaining high detection accuracy, low communication overhead, and robust privacy guarantees.

关键词： Training Privacy Differential privacy Accuracy Federated learning Biological system modeling data models Object recognition Servers Iris recognition

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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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Design of Control System for Warehouse based on PLC

Design of Control System for Warehouse based on PLC

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IEEE Information technology and Mechatronics Engineering conference (ITOEC)

作者： Chao Lv Jiaan Wang Tianyuan Deng College of Electronic Information Engineering Changchun University of Science and Technology College of Electrical and Optical Engineering Changzhou Institute of Technology Information Sector of China Unicom Jilin branch China United Telecommunications Co. Ltd Changchun China

ISBN: (纸本)9781538653746

Based on the current situation of domestic and international automated warehouse analysis and research, according to user requirements for the project. SIEMENS S7-300 PLC as the core through the analysis of the stacker operation process, puts forward a general design scheme of stereoscopic warehouse. By improving structure of warehouse to meet the storage requirements of different goods. Use STEP7 programming software and modular program design to achieve the design of closed loop control systems, data communication via the fieldbus complete PC and PLC. Select the modules needed for PLC, AC servo motor and corresponding servo drives. The positioning principle and accuracy of the stacker are analyzed, and the positioning process is described in detail. In accordance with the need of different goods, the system is the first to use a new model that is a system has two ways of working. Through experimental test, the system control effect is good, in actual operation shows that this paper studies the stereo warehouse system has certain superiority, practical and efficient, simple manipulation, has certain use and promotion value.

关键词： Servomotors DC motors Stereo image processing AC motors Stress Fasteners

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