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Non Contact Micromanipulation Using Laser Induced Convection Flows
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Download or read book Microrobotics written by Yves Bellouard and published by CRC Press. This book was released on 2009-11-04 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: From conception to realization, Microrobotics: Methods and Applications covers all aspects of miniaturized systems that physically interact and manipulate objects at the microscale. It provides a solid understanding of this multidisciplinary field, which combines areas of materials science, mechanical engineering, and applied physics. Requiring no
Book Synopsis Non-contact Micromanipulation Using Laser-Induced Convection Flows by : Emir Augusto Vela Saavedra
Download or read book Non-contact Micromanipulation Using Laser-Induced Convection Flows written by Emir Augusto Vela Saavedra and published by . This book was released on 2010 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail de thèse s'inscrit dans le cadre du projet GOLEM et de la manipulation parallèle robotisée d'objets de taille submillimétrique. L'un des enjeux majeurs de cette échelle est de développer des nouvelles méthodes de manipulation parallèle pour réussir à assembler des objets de quelques centaines de micromètres avec un haut cadencement. A cette échelle, la robotique série est limitée par la fréquence et les phénomènes physiques mis en jeu. Il faut donc trouver de nouvelles solutions dédiées à ces échelles.Pour résoudre ce verrou scientifique, ce travail de thèse propose une approche originale autour d'un moyen opto-fluidique, en utilisant particulièrement un effet de fluide convectif appelé l'effet Marangoni. Cet effet est analysé, une plate-forme expérimentale est entièrement construite pour montrer son intérêt pour manipuler à haute vitesse des objets de différentes formes et de tailles et enfin l'automatisation du processus de manipulation est démontrée pour prouver que cette technique est entièrement parallélisable.Le premier chapitre s'attache à définir les différentes méthodes de manipulation sans contact, la manipulation par champ électrique, les pinces optiques, le mouillage électrique, la lévitation acoustique et finalement la manipulation à partir de mouvements thermiques d'un fluide Toutes ces méthodes sont comparées pour montrer que la méthode par convection thermique apparaît comme une solution prometteuse pour la manipulation sans contact parallèle d'objets de taille mésoscopique.Le second chapitre aborde la modélisation de ces effets et la mise en évidence de leurs propriétés multi-physiques au travers de simulations par éléments finis. En particulier, un rappel détaillé est proposé des différents modèles de mécanique des fluides et leur application à l'échelle microscopique c'est à dire à bas Reynolds est détaillée. Ensuite, la convection naturelle sur un problème simplifié et borné est analysée. De nombreuses simulations sont proposées et des comparaisons expérimentales sont données. Finalement, le problème de la convection fluidique est abordé pour montrer son intérêt dans le cadre de notre étude. Ainsi, les différents paramètres (hauteur et volume du liquide, propriétés du liquide, puissance convective, taille des objets) sont étudiés pour la conception optimale d'une plate-forme de micromanipulation sans contact.Le troisième chapitre s'intéresse à la conception de cette plate-forme robotisée. Il décrit les différents éléments composant cette dernière, le microscope optique, le laser et ses particularités, le scanner pour le déplacement du laser et les différents éléments de contrôle du système. De nombreux tests manuels sont alors proposés pour montrer le bien fondé de notre approche. En particulier, l'utilisation d'une caméra haute définition, sa calibration pour déterminer la relation image/déplacement cartésien et d'une analyse des données permet d'estimer les paramètres optimaux pour des vitesses de déplacement micro-objets de différentes tailles. De même, les efforts engendrés sont analysés à partir du principe fondamental et de la mesure de l'accélération instantanée des objets mis en mouvement. Des résultats prometteurs sont ainsi déterminés.Le quatrième chapitre s'intéresse à la robotisation et plus particulièrement à l'automatisation du processus de manipulation. A partir de différentes positions désirées, il s'agit de monter qu'un système totalement automatisé peut déplacement différents micro-objets, en parallèle, d'un point à un autre. Il s'agit de aussi démonter que ce phénomène physique peut être contrôlé de façon fine par un scanner et qu'il peut être utilisé pour engendrer des déplacements sur plusieurs. La problématique du temps réel et de la fréquence d'échantillonnage du système est ainsi abordée. Des outils sont développés et permettent de détecter des objets avec une rapidité et une résolution suffisante. Ce modèle est ensuite utilisé pour monter que le système est capable de suivre des objets de différentes tailles. Enfin, un exemple de parallélisme unique à cette échelle montre l'originalité et l'apport de ce travail.De nombreuses perspectives sont ouvertes par exemple en étudiant plus précisément la physique de la convection fluide, en s'intéressant à un scanner à fréquence propre beaucoup plus élevée pour intégrer des déplacements sur des populations plus élevées d'objets et finalement en s'intéressant à la vison ultra rapide biomimétique.Cette thèse ouvre une porte nouvelle sur la manipulation indirecte parallèle à haute vitesse d'objets mésoscopiques de différentes formes géométriques.
Book Synopsis Microfluidic Devices and Systems by :
Download or read book Microfluidic Devices and Systems written by and published by . This book was released on 1998 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fiber-Based Optical Trapping and Manipulation by : Baojun Li
Download or read book Fiber-Based Optical Trapping and Manipulation written by Baojun Li and published by Nova Science Publishers. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its first report in 1970 by A. Ashkin, optical trapping and manipulation has been widely used in the interdisciplines of micro- and nano-photonics, biophotonics, biomedicine, etc. A conventional tool for optical trapping and manipulation is the conventional optical tweezer (COT), the core part of which is a free-space focused laser beam. However, manipulation with COTs has some limitations such as manipulation inflexibility, bulky structure, diffraction limitation for nanoparticles, and limited integration functions. The introduction of optical fiber-based optical trapping and manipulation has solved these limitations. Using optical fibers with different configurations, optical trapping and manipulation with multiple functions can be realised with high flexibility, precision, and integration. By launching laser beams with different wavelengths into the fiber, both the photothermal effect and optical force can be used for optical trapping and manipulation. For the optical force manipulation, both evanescent fields at the surface of a subwavelength optical fiber and light output from a fiber end can be used for optical manipulation. The manipulation with light output from a fiber end can be divided into dual fiber tweezers and single fiber tweezers. For single fiber tweezers, one can realise the stable trapping of single particles both in a contact and non-contact manner for further applications. In addition, single fiber tweezers can also be used for multiple particle trapping and cell assembly, which can further be used for the assembly of biophotonic components and devices. Furthermore, by placing microparticles, which act as microlens at the end facet of an optical fiber, the microlens can be served as a photonic nanojet. This fiber supported photonic nanojet can be easily used for the trapping and detection of nanoparticles and biomolecules. Optical fiber-based optical trapping and manipulation have the advantages of easy fabrication, compact configuration, flexible manipulation, easy integration, wide applicability, etc., which provides for a wide application of prospects in micro- and nano-photonics, biophotonics, and biomedicine.
Book Synopsis Proceedings of the ... International Symposium on Micromechatronics and Human Science by :
Download or read book Proceedings of the ... International Symposium on Micromechatronics and Human Science written by and published by . This book was released on 1997 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2000 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Electrochemistry by : Cynthia G. Zoski
Download or read book Handbook of Electrochemistry written by Cynthia G. Zoski and published by Elsevier. This book was released on 2007-02-07 with total page 935 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemistry plays a key role in a broad range of research and applied areas including the exploration of new inorganic and organic compounds, biochemical and biological systems, corrosion, energy applications involving fuel cells and solar cells, and nanoscale investigations. The Handbook of Electrochemistry serves as a source of electrochemical information, providing details of experimental considerations, representative calculations, and illustrations of the possibilities available in electrochemical experimentation. The book is divided into five parts: Fundamentals, Laboratory Practical, Techniques, Applications, and Data. The first section covers the fundamentals of electrochemistry which are essential for everyone working in the field, presenting an overview of electrochemical conventions, terminology, fundamental equations, and electrochemical cells, experiments, literature, textbooks, and specialized books. Part 2 focuses on the different laboratory aspects of electrochemistry which is followed by a review of the various electrochemical techniques ranging from classical experiments to scanning electrochemical microscopy, electrogenerated chemiluminesence and spectroelectrochemistry. Applications of electrochemistry include electrode kinetic determinations, unique aspects of metal deposition, and electrochemistry in small places and at novel interfaces and these are detailed in Part 4. The remaining three chapters provide useful electrochemical data and information involving electrode potentials, diffusion coefficients, and methods used in measuring liquid junction potentials. * serves as a source of electrochemical information * includes useful electrochemical data and information involving electrode potentials, diffusion coefficients, and methods used in measuring liquid junction potentials * reviews electrochemical techniques (incl. scanning electrochemical microscopy, electrogenerated chemiluminesence and spectroelectrochemistry)
Book Synopsis Optical Tweezers by : Philip H. Jones
Download or read book Optical Tweezers written by Philip H. Jones and published by Cambridge University Press. This book was released on 2015-12-03 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to the theory, practice and applications of optical tweezers, combining state-of-the-art research with a strong pedagogic approach.
Book Synopsis Microscale Surface Tension and Its Applications by : Pierre Lambert
Download or read book Microscale Surface Tension and Its Applications written by Pierre Lambert and published by MDPI. This book was released on 2019-10-21 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on advances in miniaturization and soft matter, surface tension effects are a major key to the development of soft/fluidic microrobotics. Benefiting from scaling laws, surface tension and capillary effects can enable sensing, actuation, adhesion, confinement, compliance, and other structural and functional properties necessary in micro- and nanosystems. Various applications are under development: microfluidic and lab-on-chip devices, soft gripping and manipulation of particles, colloidal and interfacial assemblies, fluidic/droplet mechatronics. The capillary action is ubiquitous in drops, bubbles and menisci, opening a broad spectrum of technological solutions and scientific investigations. Identified grand challenges to the establishment of fluidic microrobotics include mastering the dynamics of capillary effects, controlling the hysteresis arising from wetting and evaporation, improving the dispensing and handling of tiny droplets, and developing a mechatronic approach for the control and programming of surface tension effects. In this Special Issue of Micromachines, we invite contributions covering all aspects of microscale engineering relying on surface tension. Particularly, we welcome contributions on fundamentals or applications related to: Drop-botics: fluidic or surface tension-based micro/nanorobotics: capillary manipulation, gripping, and actuation, sensing, folding, propulsion and bio-inspired solutions; Control of surface tension effects: surface tension gradients, active surfactants, thermocapillarity, electrowetting, elastocapillarity; Handling of droplets, bubbles and liquid bridges: dispensing, confinement, displacement, stretching, rupture, evaporation; Capillary forces: modelling, measurement, simulation; Interfacial engineering: smart liquids, surface treatments; Interfacial fluidic and capillary assembly of colloids and devices; Biological applications of surface tension, including lab-on-chip and organ-on-chip systems.
Book Synopsis Experimental Thermodynamics Volume X by : Dick Bedeaux
Download or read book Experimental Thermodynamics Volume X written by Dick Bedeaux and published by Royal Society of Chemistry. This book was released on 2016 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering recent developments in the theory of non-equilibrium thermodynamics and its applications, this title is aimed at a predominantly, but not exclusively, academic audience of practitioners of thermodynamics and energy conversion.
Book Synopsis Laser Precision Microfabrication by : Koji Sugioka
Download or read book Laser Precision Microfabrication written by Koji Sugioka and published by Springer. This book was released on 2010-08-13 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Miniaturization and high precision are rapidly becoming a requirement for many industrial processes and products. As a result, there is greater interest in the use of laser microfabrication technology to achieve these goals. This book composed of 16 chapters covers all the topics of laser precision processing from fundamental aspects to industrial applications to both inorganic and biological materials. It reviews the sate of the art of research and technological development in the area of laser processing.
Book Synopsis Handbook of Industrial Crystallization by : Allan Myerson
Download or read book Handbook of Industrial Crystallization written by Allan Myerson and published by Butterworth-Heinemann. This book was released on 2002-01-08 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallization is an important separation and purification process used in industries ranging from bulk commodity chemicals to specialty chemicals and pharmaceuticals. In recent years, a number of environmental applications have also come to rely on crystallization in waste treatment and recycling processes.The authors provide an introduction to the field of newcomers and a reference to those involved in the various aspects of industrial crystallization. It is a complete volume covering all aspects of industrial crystallization, including material related to both fundamentals and applications. This new edition presents detailed material on crystallization of biomolecules, precipitation, impurity-crystal interactions, solubility, and design.Provides an ideal introduction for industrial crystallization newcomers Serves as a worthwhile reference to anyone involved in the fieldCovers all aspects of industrial crystallization in a single, complete volume
Download or read book IROS written by and published by . This book was released on 1992 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermoplasmonics by : Guillaume Baffou
Download or read book Thermoplasmonics written by Guillaume Baffou and published by Cambridge University Press. This book was released on 2017-10-19 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonics is an important branch of optics concerned with the interaction of metals with light. Under appropriate illumination, metal nanoparticles can exhibit enhanced light absorption, becoming nanosources of heat that can be precisely controlled. This book provides an overview of the exciting new field of thermoplasmonics and a detailed discussion of its theoretical underpinning in nanophotonics. This topic has developed rapidly in the last decade, and is now a highly-active area of research due to countless applications in nanoengineering and nanomedicine. These important applications include photothermal cancer therapy, drug and gene delivery, nanochemistry and photothermal imaging. This timely and self-contained text is suited to all researchers and graduate students working in plasmonics, nano-optics and thermal-induced processes at the nanoscale.
Book Synopsis Lab-on-Fiber Technology by : Andrea Cusano
Download or read book Lab-on-Fiber Technology written by Andrea Cusano and published by Springer. This book was released on 2014-07-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on a research field that is rapidly emerging as one of the most promising ones for the global optics and photonics community: the “lab-on-fiber” technology. Inspired by the well-established "lab on-a-chip" concept, this new technology essentially envisages novel and highly functionalized devices completely integrated into a single optical fiber for both communication and sensing applications. Based on the R&D experience of some of the world's leading authorities in the fields of optics, photonics, nanotechnology, and material science, this book provides a broad and accurate description of the main developments and achievements in the lab-on-fiber technology roadmap, also highlighting the new perspectives and challenges to be faced. This book is essential for scientists interested in the cutting-edge fiber optic technology, but also for graduate students.
Book Synopsis Introductory Biomechanics by : C. Ross Ethier
Download or read book Introductory Biomechanics written by C. Ross Ethier and published by Cambridge University Press. This book was released on 2007-03-12 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory Biomechanics is a new, integrated text written specifically for engineering students. It provides a broad overview of this important branch of the rapidly growing field of bioengineering. A wide selection of topics is presented, ranging from the mechanics of single cells to the dynamics of human movement. No prior biological knowledge is assumed and in each chapter, the relevant anatomy and physiology are first described. The biological system is then analyzed from a mechanical viewpoint by reducing it to its essential elements, using the laws of mechanics and then tying mechanical insights back to biological function. This integrated approach provides students with a deeper understanding of both the mechanics and the biology than from qualitative study alone. The text is supported by a wealth of illustrations, tables and examples, a large selection of suitable problems and hundreds of current references, making it an essential textbook for any biomechanics course.
Book Synopsis The Ultimate Guide To Choosing a Medical Specialty by : Brian Freeman
Download or read book The Ultimate Guide To Choosing a Medical Specialty written by Brian Freeman and published by McGraw Hill Professional. This book was released on 2004-01-09 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first medical specialty selection guide written by residents for students! Provides an inside look at the issues surrounding medical specialty selection, blending first-hand knowledge with useful facts and statistics, such as salary information, employment data, and match statistics. Focuses on all the major specialties and features firsthand portrayals of each by current residents. Also includes a guide to personality characteristics that are predominate with practitioners of each specialty. “A terrific mixture of objective information as well as factual data make this book an easy, informative, and interesting read.” --Review from a 4th year Medical Student
