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Coupling Technology to Natl. Need

作者： Goldman, Steven L. Lehigh Univ. (United States)

ISBN: (纸本)0819413879

The initial conceptualization of agile manufacturing was the result of a 1991 study - chaired by Lehigh Professor Roger N. Nagel and California-based entrepreneur Rick Dove, President of Paradigm Shifts, International - of what it would take for U.S. industry to regain global manufacturing competitiveness by the early twenty-first century. This industry-led study, reviewed by senior management at over 100 companies before its release, concluded that incremental improvement of the current system of manufacturing would not be enough to be competitive in today's global marketplace. Computer-based information and production technologies that were becoming available to industry opened up the possibility of an altogether new system of manufacturing, one that would be characterized by a distinctive integration of people and technologies;of management and labor;of customers, producers, suppliers, and society.

关键词： Manufacturing Product engineering Control systems design for manufacturability Information fusion Intellectual property Computing systems Information security Information technology Reliability

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Product assurance for instrumental projects in research laboratory: Galaxies, etoiles, physique, instrumentation (GEPI) 8

Product assurance for instrumental projects in research labo...

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Modeling, Systems engineering, and Project Management for Astronomy VIII 2018

作者： De Frondat Laadim, Fatima Jagourel, Pascal Frotin, Mickael Hammer, François Rodrigues, Myriam Puech, Mathieu Guinouard, Isabelle Chemla, Fanny Yang, Yanbin Fitzsimons, Ewan Parr-Burman, Phil Morris, Tim Dubbeldam, Marc Close, Madeline Middleton, Kevin Rousset, Gerard Kelz, Andreas Janssen, Annemieke Pragt, Johan Navarro, Ramon Larrieu, Marie El Hadi, Kacem Dohlen, Kjetil Dalton, Gavin Lewis, Ian GEPI Observatoire de Paris PSL University CNRS Place Jules Janssen Meudon92195 France UK Astronomy Technology Centre Science and Technology Facilities Council Royal Observatory Edinburgh Blackford Hill EdinburghEH9 3HJ United Kingdom Durham University-CfAI Department of Physics South Road DurhamDH1 3LE United Kingdom RALSPACE Science and Technology Facilities Council Rutherford Appleton Laboratory Harwell Campus Didcot OxfordshireOX11 0QX United Kingdom LESIA Observatoire de Paris PSL University CNRS Xxxx Place Jules Janssen Meudon92195 France AIP Leibniz-Institut für Astrophysik Potsdam An der Sternwarte 16 Potsdam14482 Germany NOVA NOVA Optical IR Instrumentation Group P.O. Box 2 AA Dwingeloo7990 Netherlands IRAP Université de Toulouse III-CNRS 9 avenue du Colonel Roche Toulouse Cedex 431028 France Aix Marseille Université-CNRS LAM Pôle de l'Étoile Site de Château-Gombert 38 rue F. Joliot-Curie Marseille Cedex 1313388 France University of Oxford Astrophysics Denys Wilkinson Building Keble Road OxfordOX1 3RH United Kingdom

ISBN: (数字)9781510619647

ISBN: (纸本)9781510619630

Product Assurance is an essential activity to support the design and construction of complex instruments developed for major scientific programs. The international size of current consortia in astrophysics, the ambitious and challenging developments, make the product assurance issues very important. The objective of this paper is to focus in particular on the application of Product Assurance Activities to a project such as MOSAIC, within an international consortium. The paper will also give a general overview on main product assurance tasks to be implemented during the development from the design study to the validation of the manufacturing, assembly, integration and test (MAIT) process and the delivery of the instrument. © 2018 SPIE.

关键词： Research laboratories

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Advances in selective laser sintering of polymers

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International Journal of Extreme Manufacturing 2022年第4期4卷 20-56页

作者： Wei Han Lingbao Kong Min Xu Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing Department of Optical Science and EngineeringFudan UniversityShanghai 200433People’s Republic of China

Polymers are widely used materials in aerospace,automotive,construction,medical devices and *** are being promoted rapidly due to their ease of manufacturing and improved material *** on polymer processing technology should be paid more attention to due to the increasing demand for polymer *** laser sintering(SLS)uses a laser to sinter powdered materials(typical polyamide),and it is one of the critical additive manufacturing(AM)techniques of *** irradiates the laser beam on the defined areas by a computer-aided design three-dimensional(3D)model to bind the material together to create a designed 3D solid *** has many advantages,such as no support structures and excellent mechanical properties resembling injection moulded parts compared with other AM ***,the ability of SLS to process polymers is still affected by some defects,such as the porous structure and limited available types of SLS ***,this article reviews the current state-of-the-art SLS of polymers,including the fundamental principles in this technique,the SLS developments of typical polymers,and the essential process parameters in ***,the applications of SLS are focused,and the conclusions and perspectives are discussed.

关键词： selective laser sintering additive manufacturing laser powder bed fusion 3D printing polymer

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InGaAs/InP OEIC's for optical computing

InGaAs/InP OEIC's for optical computing

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Indium Phosphide and Related Materials Conference

作者： F.R. Beyette X. An S.A. Feld M.J. Hafich G.Y. Robinson C.W. Wilmsen NSF ERC for Optoelectronic Computing Systems Department of Electrical Engineering Colorado State University USA

Techniques for optically controlling the latching capabilities of the light amplifying optical switch (LAOS) are described. It is shown that the latching can be controlled by reducing either the voltage or the current of the latching element. The operation and design of functional blocks that implement set/reset flip flops, gated latches, and inverting logic are discussed.< >

关键词： Indium gallium arsenide Indium phosphide optical computing optical control Stimulated emission Lighting control optical switches Voltage control Logic design Pulse inverters

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design of UAV onboard 5G intelligent terminal 5

Design of UAV onboard 5G intelligent terminal

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5th International Conference on Computer Communication and Network Security, CCNS 2024

作者： Lan, Dun Tang, Bing Lin, Ji Deng, Jiugen Wu, Yunjiang Niu, Rui Xu, Xiaodong Zhang, Yufei China Mobile Chengdu Institute of Research and Development Sichuan Chengdu China

ISBN: (纸本)9781510681842

As drone technology rapidly evolves, the limitations of current communication systems, particularly regarding flight distance, bandwidth, and latency, become increasingly evident. This study addresses these challenges by integrating 5G technology with unmanned aerial vehicle (UAV) systems. Our approach employs a 300-meter aerial 5G network coupled with an advanced onboard 5G intelligent terminal, significantly improving drone communication. The paper details the terminal's hardware and software architecture, emphasizing enhancements in processing, interface configurations, environmental adaptability and cutting-edge software design. Extensive testing across various conditions demonstrates the system's robustness, efficiency, and adaptability, notably in maintaining stable communication across diverse environments. This research contributes to global sustainable technology trends and paves the way for future developments, such as the integration of artificial intelligence, machine learning, and the Internet of Things. This represents a pivotal advancement in UAV technology and its applications. © 2024 SPIE.

关键词： Drones

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A design of real time image capturing and processing system using Texas instrument's processor

A design of real time image capturing and processing system ...

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Multimedia Systems and Applications X

作者： Wee, Toon-Joo Chaisorn, Lekha Rahardja, Susanto Gan, Woon-Seng Institute for Infocomm Research Singapore 119613 Singapore School of EEE Nanyang Technology University Singapore 639798 Singapore

ISBN: (纸本)9780819469373

In this work, we developed and implemented an image capturing and processing system that equipped with capability of capturing images from an input video in real time. The input video can be a video from a PC, video camcorder or DVD player. We developed two modes of operation in the system. In the first mode, an input image from the PC is processed on the processing board (development platform with a digital signal processor) and is displayed on the PC. In the second mode, current captured image from the video camcorder (or from DVD player) is processed on the board but is displayed on the LCD monitor. The major difference between our system and other existing conventional systems is that image-processing functions are performed on the board instead of the PC (so that the functions can be used for further developments on the board). The user can control the operations of the board through the Graphic User Interface (GUI) provided on the PC. In order to have a smooth image data transfer between the PC and the board, we employed Real Time Data Transfer (RTDX™) technology to create a link between them. For image processing functions, we developed three main groups of function: (1) Point Processing;(2) Filtering and;(3) 'Others'. Point Processing includes rotation, negation and mirroring. Filter category provides median, adaptive, smooth and sharpen filtering in the time domain. In 'Others' category, auto-contrast adjustment, edge detection, segmentation and sepia color are provided, these functions either add effect on the image or enhance the image. We have developed and implemented our system using C/C# programming language on TMS320DM642 (or DM642) board from Texas Instruments (TI). The system was showcased in College of engineering (CoE) exhibition 2006 at Nanyang Technological University (NTU) and have more than 40 users tried our system. It is demonstrated that our system is adequate for real time image capturing. Our system can be used or applied for application

关键词： Real time systems

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Recent advancements in optofluidics-based single-cell analysis: optical on-chip cellular manipulation, treatment, and property detection

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LAB ON A CHIP 2014年第7期14卷 1230-1245页

作者： Huang, Nien-Tsu Zhang, Hua-li Chung, Meng-Ting Seo, Jung Hwan Kurabayashi, Katsuo Natl Taiwan Univ Dept Elect Engn Taipei 10617 Taiwan Natl Taiwan Univ Grad Inst Biomed Elect & Bioinformat Taipei 10617 Taiwan Nantong Univ Sch Mech Engn Nantong 226019 Peoples R China Univ So Calif Dept Biomed Engn Los Angeles CA 90007 USA Hongik Univ Dept Mech & Syst Design Engn Seoul 121791 South Korea Univ Michigan Dept Mech Engn Ann Arbor MI 48109 USA Univ Michigan Dept Elect Engn & Comp Sci Ann Arbor MI 48109 USA

Cellular analysis plays important roles in various biological applications, such as cell biology, drug development, and disease diagnosis. Conventional cellular analysis usually measures the average response from a whole cell group. However, bulk measurements may cause misleading interpretations due to cell heterogeneity. Another problem is that current cellular analysis may not be able to differentiate various subsets of cell populations, each exhibiting a different behavior than the others. Single-cell analysis techniques are developed to analyze cellular properties, conditions, or functional responses in a large cell population at the individual cell level. Integrating optics with microfluidic platforms provides a well-controlled microenvironment to precisely control single cell conditions and perform non-invasive high-throughput analysis. This paper reviews recent developments in optofluidic technologies for various optics-based single-cell analyses, which involve single cell manipulation, treatment, and property detection. Finally, we provide our views on the future development of integrated optics with microfluidics for single-cell analysis and discuss potential challenges and opportunities of this emerging research field in biological applications.

关键词： cell heterogeneity Cells Single-Cell Analysis Integrated optics Microfluidics system-on-chip Disease diagnosis cell population

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design criteria for helicopter night pilotage sensors

Design criteria for helicopter night pilotage sensors

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Passive Sensors 1991

作者： Vollmerhausen, Richard H. Nash, Carolyn J. US Army CECOM Center for Night Vision and Electro-Optics Fort BelvoirVA United States

The Army requirement to fly helicopters at low level at night led to the development and fielding of night vision pilotage sensors. These sensors have included image intensifiers (I2) operating in the near infrared as well as 8 to 12 micron thermal imagers. The design of current pilotage sensors was driven by available technology. There were no clear data for optimum pilotage sensor design, to enable the designer to trade off sensor field of view (FOV) and resolution or to predict the performance increase which could be obtained by increasing sensitivity. The current Center for Night Vision and Electro-Optics (CCNVEO) effort is an attempt to establish design criteria for night pilotage sensors. It includes flight experiments to find sensor characteristics which optimize flight tasks as well as assessments of the performance of fielded systems. We conclude that terrain flight can be accomplished with reasonable pilot workload using a sensor with 40 degree FOV and 0.6 cycles per mi 11iradian (cy/mrad) resolution. Larger FOV or better resolution will lesson workload and improve confidence;however, the ability to resolve scene detail of 0.6 cy/mrad is essential and should not be traded for increased FOV. Further, a pilotage system which provides both thermal and I2 imagery will significantly enhance system capability to support a variety of flight tasks under a wide range of environments. We also conclude that solid state cameras with detector dwell time equal to the standard video field rate are not suitable for use in pilotage systems. The long dwell time leads to image blur due to the head and scene motion associated with many pilotage tasks. © (1992) 2017 SPIE.

关键词： Image enhancement

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In situ ellipsometric monitoring of complex multilayer designs

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中国光学快报（英文版） 2010年第S1期8卷 44页

作者： Svetlana Dligatch Commonwealth Scientific and Industrial Research Organisation Materials Science and Engineering PO Box 218 Lindf ield NSW 2070 Australia

current developments in optical multilayer design and computation make it possible to calculate filters that satisfy the most demanding optical specifications. Some of the designs are highly sensitive to manufacturing errors and require accurate monitoring and control during thin film deposition. Ellipsometric monitoring enables the accurate deposition of any thickness, including very thin layers, and in situ measurement of both refractive index and thickness of the layers during deposition, which facilitate the subsequent real-time design reoptimisation. In this letter, a number of complex multilayer designs with the aid of ellipsometric monitoring are presented, including a laser notch plus band-blocker filter, dichroic filter, beamsplitter, and a wide-range broadband multiplayer antireflection coating.

关键词： 240.2130 光学监测椭圆偏光法 310.1860 120.2130 光学薄膜多层滤光片

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design, developments, and results from the NIST additive manufacturing metrology testbed (AMMT) 27

Design, developments, and results from the NIST additive man...

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27th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2016

作者： Lane, B. Mekhontsev, S. Grantham, S. Vlasea, M.L. Whiting, J. Yeung, H. Fox, J. Zarobila, C. Neira, J. McGlauflin, M. Hanssen, L. Moylan, S. Donmez, A. Rice, J. Engineering Laboratory National Institute of Standards and Technology GaithersburgMD20899 United States Physical Measurement Laboratory National Institute of Standards and Technology GaithersburgMD20899 United States Mechanical and Mechatronics Engineering University of Waterloo WaterlooONN2L 3GI Canada

The National Institute of Standards and Technology (NIST) is developing a facility titled the Additive Manufacturing Metrology Testbed that will enable advanced research into monitoring, controls, process development, and temperature measurement for laser powder bed fusion additive manufacturing and similar processes. This system provides an open control architecture as well as a plethora of sensor systems and calibration sources that are primarily radiance-based and aligned co-axially with the laser beam and focused on the laser interaction zone. This paper briefly reviews the system requirements, and details the current progress of the facility design and construction. Mechanical, optical, and control systems designs are detailed with select highlights that may be relevant to additive manufacturing researchers and system developers. Recent experimental results from the prototype laser control and in-situ monitoring system are also highlighted. © 2016 The Department of Energy’s Kansas City National Security Campus is operated and managed by Honeywell Federal Manufacturing Technologies, LLC under contract number DE-NA0002839.

关键词： 3D printers

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