Author: Yves DeblockPublisher:
ISBN:
Category :
Languages : fr
Pages : 0
Book Description
Caracterisation ultrasonore haute frequence des proprietes viscoelastiques de milieux liquides
Author: Yves DeblockCaractérisation ultrasonore haute fréquence des propriétés viscoélastiques de milieux liquides
Author: Yves DeblockPublisher:
ISBN:
Category :
Languages : fr
Pages : 268
Book Description
Les modules de compression et de rigidité constituent des paramètres macroscopiques, caractéristiques des matériaux homogènes, linéaires et isotropes. Nous proposons, dans ce travail, deux méthodes acoustiques, originales et complémentaires, applicables aux matériaux liquides, qui permettent leur détermination dans le domaine haute fréquence. La première méthode est basée sur le traitement de l'impédance électrique d'entrée d'un capteur à onde de cisaillement, place au contact du matériau liquide étudié. Ce traitement permet d'extraire le coefficient de réflexion a l'interface entre les matériaux solide et liquide, puis finalement, le module de rigidité. La seconde méthode utilise des capteurs onde de pression. Elle repose sur le traitement de la fonction de transfert en tension d'un système compose de deux capteurs et du matériau liquide dispose entre eux. La vitesse et l'absorption du matériau liquide sont extraites de ce traitement et reliées à une combinaison des deux modules. La connaissance du module de rigidité, issu de la méthode précédente, permet d'atteindre le module de compression. Les deux méthodes de mesure ont été validées, à l'aide d'un matériau liquide de référence. En guise d'exemple, elles ont été appliquées pour l'étude d'un matériau liquide particulier.
Properties of UO2
Author: J. BellePublisher:
ISBN:
Category : Nuclear fuels
Languages : en
Pages : 146
Book Description
MRI of the Body
Author: Daniel VanelPublisher: Springer Science & Business Media
ISBN: 3642875564
Category : Medical
Languages : en
Pages : 390
Book Description
As with the introduction of x -ray computed tomography, much of the initial development of magnetic resonance applications tended to focus on the central nervous system. The development of magnetic resonance imaging applications to other organ systems such as the chest, abdomen, pelvis and extremities has lagged somewhat behind, awaiting technical improvements, and a broader user base. The past two years have seen a marked increase in imaging applications throughout the body, most notably the musculoskeletal system. It is in this regard, that MRI of the Body is a welcome arrival as a text which describes both basic principles of magnetic resonance ima ging and surveys the current status of magnetic resonance imaging applications throughout the body. The volume is concise, focused, clinically oriented, and abun dantly illustrated. In each organ system, the appropriate technical approach is discussed, the normal anatomic features are reviewed, and the range of pathologic appearances which may be encountered are described. The authors of the chapters provide a balanced overview of MR applications and describe both present limitations and future potential of magnetic resonance imaging applications in the organ system described.
Flow Sensing in Air and Water
Author: Horst BleckmannPublisher: Springer Science & Business Media
ISBN: 364241446X
Category : Science
Languages : en
Pages : 558
Book Description
In this book, leading scientists in the fields of sensory biology, neuroscience, physics and engineering explore the basic operational principles and behavioral uses of flow sensing in animals and how they might be applied to engineering applications such as autonomous control of underwater or aerial vehicles. Although humans possess no flow-sensing abilities, countless aquatic (e.g. fish, cephalopods and seals), terrestrial (e.g. crickets and spiders) and aerial (e.g. bats) animals have flow sensing abilities that underlie remarkable behavioral feats. These include the ability to follow silent hydrodynamic trails long after the trailblazer has left the scene, to form hydrodynamic images of their environment in total darkness, and to swim or fly efficiently and effortlessly in the face of destabilizing currents and winds.
The European Respiratory Journal
Author: Mechanical Vibration
Author: William John PalmPublisher:
ISBN:
Category : Science
Languages : en
Pages : 728
Book Description
Model, analyze, and solve vibration problems, using modern computer tools. Featuring clear explanations, worked examples, applications, and modern computer tools, William Palm's Mechanical Vibration provides a firm foundation in vibratory systems. You'll learn how to apply knowledge of mathematics and science to model and analyze systems ranging from a single degree of freedom to complex systems with two and more degrees of freedom. Separate MATLAB sections at the end of most chapters show how to use the most recent features of this standard engineering tool, in the context of solving vibration problems. The text introduces Simulink where solutions may be difficult to program in MATLAB, such as modeling Coulomb friction effects and simulating systems that contain non-linearities. Ample problems throughout the text provide opportunities to practice identifying, formulating, and solving vibration problems. KEY FEATURES Strong pedagogical approach, including chapter objectives and summaries Extensive worked examples illustrating applications Numerous realistic homework problems Up-to-date MATLAB coverage The first vibration textbook to cover Simulink Self-contained introduction to MATLAB in Appendix A Special section dealing with active vibration control in sports equipment Special sections devoted to obtaining parameter values from experimental data
Medical Computer Vision
Author: Bjoern MenzePublisher: Springer
ISBN: 3642184219
Category : Computers
Languages : en
Pages : 235
Book Description
This book constitutes the thoroughly refereed post-workshop proceedings of the International Workshop on Medical Computer Vision, MCV 2010, held in Beijing, China, in September 2010 as a satellite event of the 13th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2010. The 10 revised full papers and 11 revised poster papers presented were carefully reviewed and selected from 38 initial submissions. The papers explore the use of modern image recognition technology in tasks such as semantic anatomy parsing, automatic segmentation and quantification, anomaly detection and categorization, data harvesting, semantic navigation and visualization, data organization and clustering, and general-purpose automatic understanding of medical images.
Scientific Canadian Mechanics' Magazine and Patent Office Record
Author: Canada. Patent OfficePublisher:
ISBN:
Category : Copyright
Languages : en
Pages : 1070
Book Description
Women in England, 1870-1950
Author: Jane E. LewisPublisher: Brighton, Sussex : Wheatsheaf Books ; Bloomington : Indiana University Press
ISBN:
Category : Family & Relationships
Languages : en
Pages : 264
Book Description
"... offers an alternative depth of context for viewing the structure of women's lives.... thoughtful and judicious." --Joyce Berkman "Women in England breaks ground in its interpretive treatment of feminist, suffrage, and labor issues in a single volume." --Signs A penetrating account of the changing nature of English working and middle-class women's experiences at school, home, work, and in politics from 1870 to 1950.