Le bruit devient hauteur stridente. Makis Solomos. Ostinato — 2. Main — 3. Sur 4. Larmes — 5. Contre 7. Soleil — 8. Salut 23 mn environ.
- John Wilson Ruckman: Scholar, Soldier and Public Figure.
- Benoît Maire.
- The Shenanigans of Time.
- Werke von Johann Jakob Merlo (German Edition)!
- Extreme Landmarks Around the World: An Interactive Trivia Book (Exploring the World We Live In 1);
Ceux — 3. Matin — 4. Nuit — 5. Interlude 1 — 7. Vocable — 8. Bruit — 9. Poing — Poignard Interlude 2 — Temps — Commande du Smash Ensemble. Marzena Diakun. Fulcrum est le support sur lequel un levier pivote. Manuel Nawri. Jean-Louis Florentz Les Laudes, op. Commande de Carnegie Hall. Arie van Beek. Commande de Radio France pour le Quatuor Diotima.
Commande de la Biennale de Venise. Des minimalistes? Au fait, y a-t-il UN public de LA musique contemporaine? Quels instruments jouez-vous? Attente — 2. Douleur — 3. Juha T. Le chemin est tortueux et raide. Il est tout noir. Jukka-Pekka Saraste. The useless dawn finds me 2.
What can I hold you with? Proposition I 2. River 3. Proposition II 4. Lullaby 5. Farewell 6. Alexander Liebreich. Olari Elts. Son enfant se plaint. Le mari la trouve inconsciente, son enfant dans les bras. Tout se produit au moment de minuit. Gustavo Dudamel. Ce qui a rendu difficile le choix des textes. Paris, 4 avril La vision est concomitante de la dispersion de la chose vue.
Commande du Cleveland Orchestra. Tennent, Chaconne.
- Presences by Maisondelaradio - Issuu.
- Full text of "Le théâtre de la Monnaie : depuis sa fondation jusqu'à nos jours".
- EDGE: Battle Books: Marathon: EDGE: Battle Books.
- Phantom Wolf (Mills & Boon Nocturne) (Phoenix Force, Book 2).
- Piezoelectric Materials and Devices: Applications in Engineering and Medical Sciences.
- Actors in Search of Theatre’s Quintessence : Human and Social Studies.
- Membres - AIPS-AISR-PIIST.
- Actors in Search of Theatre’s Quintessence!
- Dressing as Jessica (Dressing Up 1).
- Oh no, there's been an error.
- Kierkegaard And The Ends Of Language.
Ed Spanjaard. Nox borealis , installation musicale et visuelle Kaija Saariaho Lichtbogen 16 mn environ. Saariaho Lichtbogen. Georges-Elie Octors. Je ne saurais le dire. Where are you? Se me duerme la vida 3. No Life, no Death 16 mn environ. Puis vient la nuit. Je les remercie vivement. Oiseau dansant 2. Terrestre comprend deux parties. The Carnegie Hall Corporation, Fugitif 2. Messager 25 mn environ. Shadows fly Misterioso ma intenso 2.
Dome Lento calmo 3. Michel Tabachnik. Kent Nagano. Mais aussi Berio, Ligeti que je ne connaissais pas assez, Lutoslawski, Petrassi. Je suis fondamentalement solitaire. Propos recueillis par Christian Wasselin le 12 octobre Usures 3. This paper presents our designs based on planar serial 2-DOF linear isotropic springs. We propose two architectures, both based on parallel leaf springs, then evaluate their isotropy defect using firstly an analytic model, secondly finite element analysis and thirdly experimental data measured from physical prototypes.
Using these results, we analyze the isotropy defect in terms of displacement, radial distance, angular separation, stiffness and linearity. Based on this analysis, we propose improved architectures stacking in parallel or in series duplicate copies of the original mechanisms rotated at specific angles to cancel isotropy defect. We show that using the mechanisms in pairs reduces isotropy defect by one to two orders of magnitude.
C The Authors. Published by Elsevier Inc. Rubbert The mechanical isotropic harmonic oscillator comprises at least a two degrees of freedom linkage supporting an orbiting mass with respect to a fixed base with springs having isotropic and linear restoring force properties wherein the mass has a tilting motion. The oscillator may be used in a timekeeper, such a watch.
The mechanical isotropic harmonic oscillator comprises at least a two degree of freedom linkage supporting an orbiting mass with respect to a fixed base with springs having isotropic and linear restoring force properties. The oscillator may be used in a timekeeper, such as a watch. Homsy ; E. Laux ; L.
Jeandupeux ; J. Charmet ; R. Bitterli et al. Microelectronic Engineering. However, depositing solids on liquid with subsequent hermetic sealing is difficult because liquids tend to have a lower density than solids. Furthermore, current systems seen in nature lack thermal, mechanical or chemical stability. However, SOLID techniques have the potential to be harnessed and controlled for such systems because the gravitational force is negligible compared to surface tension, and therefore, the solid molecular precursors that typically condense on a liquid surface will not sediment into the fluid.
In this review we summarize recent research into SOLID, where nucleation and subsequent cross-linking of solid precursors results in thin film growth on a liquid substrate. We describe a large variety of thin film deposition techniques such as thermal evaporation, sputtering, plasma enhanced chemical vapor deposition used to coat liquid substrates.
Surprisingly, all attempts at deposition to date have been successful and a stable solid layer on a liquid can always be detected. However, all layers grown by non-equilibrium deposition processes showed a strong presence of wrinkles, presumably due to residual stress. In fact, the only example where no stress was observed is the deposition of parylene layers poly-para-xylylene, PPX. Using all the experimental data analyzed to date we have been able to propose a simple model that predicts that the surface property of liquids at molecular level is influenced by cohesion forces between the liquid molecules.
Finally, we conclude that the condensation of precursors from the gas phase is rather the rule and not the exception for SOLID techniques. Published by Elsevier B. Clogenson ; J. Duff ; M. Luethi ; M. Levivier ; R. Meuli et al.
Statistical shape and appearance models play an important role in reducing the segmentation processing time of a vertebra and in improving results for 3D model development. Here, we describe the different steps in generating a statistical shape model SSM of the second cervical vertebra C2 and provide the shape model for general use by the scientific community. The main difficulties in its construction are the morphological complexity of the C2 and its variability in the population. The input dataset is composed of manually segmented anonymized patient computerized tomography CT scans.
The alignment of the different datasets is done with the procrustes alignment on surface models, and then, the registration is cast as a model-fitting problem using a Gaussian process. A principal component analysis PCA -based model is generated which includes the variability of the C2. The resulting SSM was evaluated for specificity, compactness and generalization ability.
The SSM of the C2 is freely available to the scientific community in Slicer an open source software for image analysis and scientific visualization with a module created to visualize the SSM using Statismo, a framework for statistical shape modeling. The SSM of the vertebra allows the shape variability of the C2 to be represented.
Moreover, the SSM will enable semi-automatic segmentation and 3D model generation of the vertebra, which would greatly benefit surgery planning. Luethi ; S. Kostrzewski ; C. The increased use of 3D models of organs or bones by the surgeon has lead to rapid development of new methods to automaKze model generaKon. The goal of the project is to generate a 3D model of the C2 cervical vertebra for surgery planning using an atlas-based segmentation technique.
Bertholds ; P. Llosas ; S. An optical measuring element measures forces at least one direction. The measuring element has a single-piece structure. There is an outside wall with notches introduced therein. Each notch defines parallel edges, and the notches define more or less elastically flexible zones in the structure and constitute the only connection between a first region and a second region of the structure.
For optical distance measurement between the two regions of the structure, one or more optical fibers are each attached with one end thereof to a region of the structures such that reflective surfaces are located close to the ends. The reflective surfaces are firmly connected to another region. The optical fibers are disposed on the outside wall. In principle, knowledge of watch and clock escapements is acquired through the study of the geometry and operation of numerous realizations, studied patiently one after the other.
Knowing the classics, one can hope to construct a new realizations by borrowing components from one or geometry from another. Currently, there is no formal model or systematic approach which permits any other method of learning escapements and creating new ones. The purpose of this thesis is fill this gap by describing a formal model which will provide a systematic approach to escapements. We will not limit ourselves to the study of the geometry and operation of fundamental escapements but will add a formalism which has only been partially used in the past, outlining gear tooth profiles.
The operation of proposed escapements will thus be characterized by an abstract geometric shape called the primitive outline. As opposed to visible escapement geometry, primitive outlines differ very little from one escapement to the other, making them an excellent basis for escapement unification. After going from existing geometries to primitive outlines we will reverse course. The method of outlining gear tooth profiles will allow us, based on existing primitive outlines, to construct new escapements.
We will push this method to create a new primitive outline which, according to traditional criteria, appears to have unprecedented efficiency. Ferrier et al. Rubbert ; S. Caro ; J. Gangloff ; P. Renaud Journal of Mechanical Design. The rigid-body replacement method is often used when designing a compliant mechanism.
The stiffness of the compliant mechanism, one of its main properties, is then highly dependent on the initial choice of a rigid-body architecture. In this paper, we propose to enhance the efficiency of the synthesis method by focusing on the architecture selection. This selection is done by considering the required mobilities and parallel manipulators in singularity to achieve them.
Kinematic singularities of parallel structures are indeed advantageously used to propose compliant mechanisms with interesting stiffness properties. The approach is first illustrated by an example, the design of a one degree of freedom compliant architecture. Then, the method is used to design a medical device where a compliant mechanism with three degrees of freedom is needed. The interest of the approach is outlined after application of the method. Laesser Il obtient des correspondances avec la pratique qui de son propre aveu ne sont "pas bonnes.
Barrot ; R. Fournier ; L. Giriens ; S. Henein ; S. Jeanneret et al. Kostrzewski ; P. Berard ; C. Baur ; J. Duff ; K. Sandu The present invention relates to a method, such as a surgical method for assisting a surgeon for placing screws in the spine using a robot attached to a passive structure. The present invention also related to a method, such as a surgical method for assisting a surgeon for removing volumes in the body of a patient using a robot attached to a passive structure and to a device to carry out said methods. The present invention further concerns a device suitable to carry out the methods according to the present invention.
Henein Mechanical Sciences. Flexures are nowadays enjoying a new boom in numerous high-precision and extreme-environment applications. The paper presents some delicate issues concerning stiffness compensation, large reduction ratios, as well as rectilinear and circular movements in compliant mechanisms.
Toward a New Poetics
Novel concrete technical solutions to these well-known issues are described, giving a glimpse into the vast and still largely unexploited potential of flexure mechanisms manufactured by wire-electrical-discharge machining. Colpo ; S. Henein Diamond Light Source Proceedings. Flexures are enjoying a new boom in numerous high-precision and extreme-environment applications. This paper presents some general aspects of flexure design, showing simple principles, and also some subtler issues concerning kinematic design, stiffness compensation, large reduction ratios and rectilinear as well as circular movements.
Spanoudakis ; P. Schwab ; I. Kjelberg ; L. Giriens et al. The mirror is actuated in 0. Since the actuators are self-locking, a special lever performing the role of a linear mechanical differential is used to provide redundancy. The angle is driven in closed loop using two capacitive sensors. Schwab Schwab ; Y. The design uses high-precision flexures to minimise mirror parasitic piston displacements in the picometres range.
This paper presents the mechanism at the design stage of an elegant breadboard EBB ready for tests. The performance requirements are summarized, then the overall concept of the mechanism is described, at last the key aspects of the detailed design are discussed: flexures design, kinematic structure, kinematic mount, redundant piezo-actuation, sensors and control. Optimisation of the design has shown that the selected high-precision design can meet the stringent requirements of fine positioning and severe environments.
Felber ; I.
Formes Breves as Linguistic and Social Meditations in le Misanthrope
Pappas ; M. Caversaccio ; C.
Baur The invention relates to a surgical navigation system, comprising a microscope to which a 3D measuring apparatus is rigidly fixed, for localising objects within the field of operation. Markers are fixed to the objects the position of which is desirable to know, for example, the patient or surgical instruments, which are themselves connected to the measuring system. The change in coordinates between the measuring system and the microscope is fixed as the two devices are rigidly connected. Also, knowing the position of the markers relating to the measuring system, it is possible to calculate the change in coordinates between the markers and the image from the microscope.
A typical application for enhanced reality is the superimposition of a 3D anatomical model of the patient on the microscope image, generated from a pre-operative scan of the patient. Collective creation : improvised arts and engineering. Video of the public presentation made by the 24 students of the Improgineering course on The video of the related Microgineering course tough by Prof. Simon Henein to the Microengineering Bachelor students reveals the underlying links between the creative processes of improvised arts and those of engineering design. The course examines the creative process in engineering design and improvisation within the performing arts.
Experts in a wide range of disciplines, ranging from theater to mathematics, present the students with creativity as expressed in their field of expertise. Workshops explore improvisation through theater, music, dance and the performance arts. The 24 students will stage their final project with a dress rehearsal on May 16 and give their final presentation before their examiners on May Both events will be open to the public. We look at intuition, expression, listening, trust and self-reflection.
The students are exposed to a wide range of approaches to the creative process, from the hard sciences to engineering and stage performance. All these influences will play a part in their professional work. The course will be given again in September Susanne Martin Ph. The laboratory is strongly involved in the teaching of design to students of all levels. It focuses on training the creative processes from which the act of design originates and its complementarity with the analytical mind necessary to model, simulate and predict the behaviour of engineering systems.
The course focuses as well on the the knowledge components, physical principles, dimensioning as on the cognitive processes from which the act of design originates. It comes within the Social and Human Sciences teachings at Master level. This course contrasts improvisation in the performing arts theatre, music, dance, performance with engineering design. Collective creative processes will be studied and put into practice through student projects culminating with an improvised public performance. Students will design technical artefacts to enhance their performance and will be evaluated based on the interplay of their artistic and technical creations.
Henein and Dr. The open Ph. Text available in French only. En effet, la diffusion des connaissances est une exigence des fonctions professorales. Human rights and academic freedom. Tight, M. Adacemic freedom and responsibility. Guilford, England : Open University Press. Mechanical timekeeping began in the Middle Ages with the invention of the escapement. After the introduction of oscillators in the 17th century, mechanical clocks and watches continued to rely on escapements. This solves the escapement problem by completely eliminating it: the mechanical watch can work without an escapement.
The result is a simplified mechanism having greatly increased efficiency and chronometric accuracy. This project is based on a new family of oscillators and maintaining mechanisms patented by the EPFL. An industrial project was established in and successfully completed in This project was extended to a second phase, currently in its second year. This phase is focused on miniaturizing the IsoSpring concept to the watch scale. The key innovation is the use of a novel patented mechanism consisting of four balances whose rotations are converted to linear motion by classical Watt linkages.
We named this oscillator Wattwins in order to highlight the historical inspiration of our mechanism. This new oscillator is insensitive to linear accelerations as required for wrist watches. Moreover, it is insensitive to rotational accelerations which is not always the case for classical mechanical watches. We have constructed physical demonstrators and our experimental measurements aim at validating the insensitivity to gravity. Towards watch scale IsoSpring. Instant-Lab introduced virtual impulse escapements in which a double beat escapement becomes a dead beat escapement when the balance wheel is at its operating amplitude.
In this way, the advantages of dead beat escapements : direct impulse, greater freedom in choosing impulse position, are preserved, while the disadvantages: sensitivity to shock and difficult self-start, are minimized. This project introduces the concept of programmable multistable mechanism in which the number and position of stable states of a multistable mechanism can be modified.
A complete qualitative analysis of a generic multistable mechanism, the T-shaped mechanism, was established using analytical tools based on Euler-Bernoulli beam theory. These results were validated numerically using finite element analysis and experimentally using physical models. Applications include new surgical tools and programmable metamaterials. Retinal Vein Occlusion is a vascular disorder causing severe loss of vision. Retinal vein cannulation and injection of therapeutic agents in the affected vein is a promising treatment but the small size and fragility of retinal veins as well as the surgeon limited hand gesture precision and force perception makes this procedure too delicate for routine operations.
The project aims at providing a compliant mechanical tool relying on a new programmable multistable mechanism to safely cannulate veins. This mechanism has the advantage that puncturing stroke and force can be predetermined so that puncturing is independent of surgeon manipulation. The feasibility of this project was demonstrated by a prototype made by femto-laser printing, one of the first buckled mechanisms manufactured in glass.
This project consists of a geometrically adjustable shoe orthotic to balance knee and hip loads which could otherwise lead to cartilage wear and tear, thus avoiding surgical intervention. Our proposed solutions are based on flexible elements combined with metamaterial.
Different prototypes were realized and successfully tested at CHUV. We are currently examining if the proposed device can be developed into a commercial product. One patent is pending. The SPIRITS Simple Printed Interactive Robotics for Interventional Therapy and Surgery project involves developing a robotic device for image-guided surgery and interventional radiology with a number of innovations, such as a tactile transducer, an intelligent needle, new 3d printing methods and new actuators and robots.
The Art of Flexure mechanism Design. Since November 1st, , he is associate professor in microengineering at the EPFL, holder of the Patek Philippe Chair and director of the Micromechanical and horological design laboratory Instant-Lab. La ronde des heures, , Charles Bieler, Le Locle city hall fresco. Instant-Lab currently consists of a dozen senior scientists, postdoctoral scholars and graduate students.
The scientific approach is inspired from mechanical design in fields such as new and classical horology, robotics and aerospace. Current projects apply to mechanical watchmaking and biomedical instrumentation, these fields being quite close, both technologically and in their industrial fabric. Mechanism design, v ideoclip of the course taught to Bachelor student in Microengineering. Liens utils. Baur Charles, Fifanski Sebastian, Clogenson Marine Description: This project will focus on development of flexible structure fore flexure based surgical tool.
Charles Baur, David Lengacher. Organisation Before the start of the Master Project: choice of the project, discussion with the responsible and contact with the professor email with: title of the project and name of responsible. The registration to the Instant-Lab secretary should be done minimum 3 weeks before the beginning of the semester. The same electronic version has also to be sent to the assistant.
Follow the guidelines for writing reports. One paper copy is also required. Ball with mechanical sound system To play tennis, visually impaired persons use a ball with bells to indicate where is the ball. Test bench for load cell with micro-millinewton measurements The project focuses on designing and assembling the test bench, for a new load cell that is being developed in a joined project of Instant Lab and the industrial partner.
Electronic inclinometer The goal of the project is to work on the functionalities of the electrical inclinometer prototype developed at Instant-Lab. Flexure-based seismograph The goal of the project is to design a two degree-of-freedom seismograph using the oscillators developed at Instant lab. Rehabilitation insole for progressive weight application This mechatronics project is focused on the design of an insole for the rehabilitation of a broken leg or an sprained ankle.
This project is developed with the collaboration of medical partners. Design the communication by bluetooth LE between the mobile phone and the microcontroller. Export, store and import data from a remote sever to the mobile phone. Programming skills in Swift. Kwonledge of Bluetooth Low Energy. Basic electronics and microcontroller programming. Test and calibration of a nanoforce sensor A new generation of sensor for biological application has been developed and manufactured out of glass.
Watchmaking assembly at the millimetre scale This project is a study of watch component assembly at the millimetre scale using new techniques from MEMS and innovative materials. Flexure based surgical tool Growing life expectancy goes together with improvement of healthcare.
Flexure based tool improvement for reduced fingers strength People with certain neurological pathologies such as MS, ALS or cerebral stroke have often difficulties to manipulate tools that require a voluntary extension opening of the hand such as scissors or pliers. Project consists of : Conception of flexible structure Dimensioning calculations and finite elements method Test campaign Required background : Mechanical design Matlab would be a plus, but is not required Sections : SMT IMT or other interested Contact email : sebastian.
Micro-Torque test bench validation Recently conducted master project lead to development of micro-torque measurement bench. Outil pour Mibot avec mesure de force Un Mibot est un minirobot voir www. Media coverage of the IsoSpring project. The Lab in the media Conceptual design of a rotational mechanical time base with varying inertia E. DOI : Le sens de la recherche C. Patent number s :. Programmable Multistable Mechanisms: Design, modeling, characterization and applications M. Theory and design of spherical oscillator mechanisms I. VivoForce instrument for retinal microsurgery S.
Higher-order continuation method for the rigid-body kinematic design of compliant mechanisms L. Gravity insensitive flexure pivots for watch oscillators M. Force sensitive hook for epiretinal membrane peeling in eye surgery S. Flexure-based multi-degrees-of-freedom in-vivo force sensors for medical instruments S. Design, analysis, testing and applications of two-body and three-body kinematic mounts J. Refraction limit of miniaturized optical systems: a ball-lens example M. Flexure-based multi-degree-of-freedom force and torque sensors at the milimeter scale for medical instruments S.
Mathematics, the Language of Watchmaking I. Guidages flexibles S. Isotropic springs based on parallel flexure stages L. Solid on liquid deposition, a review of technological solutions A. A statistical shape model of the human second cervical vertebra M. Statistical Shape Model for robotic spine surgery M. Optical measuring element having a single-piece structure A.
Optical force sensing element and microsurgical instrument A. Robotic system for spinal and other surgeries S. Short Communication: Flexure delicacies S. Immobilizing device for a toothed wheel F. Conception des guidages flexibles S. Flexures: simply subtle S. Flexure-based pointing mechanism with sub-microradian resolution for the Laser Interferometer Space Antenna S.
Design and development of the point-ahead angle mechanism for the lase interferometer space antenna LISA , S. Device for converting a first motion into a second motion responsive to said first motion under a demagnification scale S. Surgical navigation system M. A bridge to the humanities In , Professor Henein conceived a new course linking the engineering and humanities faculties of the EPFL. Actes du cours Open Ph.
Annual Reports New escapement concept Instant-Lab introduced virtual impulse escapements in which a double beat escapement becomes a dead beat escapement when the balance wheel is at its operating amplitude. Virtual impulse escapement demonstrator. Vardi; R. Bitterli; L. Convert; E. Thalmann; S. High quality factor oscillators for wrist watches Current mechanical wrist watches have an oscillator consisting of a balance wheel mounted on jewelled bearings and a hairspring.
The use of flexure bearings instead of traditional pivots leads to a significant increase in quality factor, i. As a result, power reserve can be significantly increased and chronometric precision can be improved thanks to reduced oscillator perturbation. However these new oscillators are sensitive to gravity and have isochronism defects.
This project explores novel flexure-based pivots minimizing these issues. Gravity insensitive flexure pivot GIFP demonstrators. Programmable multistable energy storage mechanisms This project introduces the concept of programmable multistable mechanism in which the number and position of stable states of a multistable mechanism can be modified. T-shaped multistable mechanism programable to have 1 to 4 stable positions Stable and unstable states of the T-shaped mechanism.
Retinal surgery with force sensitive peeling hook. Glass needle for retinal vein puncturing left and its bistable mechanism right. SNSF Adjustable midsole intervention footwear for patients with medial compartment knee osteoarthritis ADVANCER This project consists of a geometrically adjustable shoe orthotic to balance knee and hip loads which could otherwise lead to cartilage wear and tear, thus avoiding surgical intervention. Geometrically adjustable shoe orthotic. Adjustable midsole intervention footwear orthotic for patients.
Flexure based level indicating tilt angle for pedicle screw placement. SPIRITS : Interactive intelligent robotics and 3d printing for surgery and interventional radiology The SPIRITS Simple Printed Interactive Robotics for Interventional Therapy and Surgery project involves developing a robotic device for image-guided surgery and interventional radiology with a number of innovations, such as a tactile transducer, an intelligent needle, new 3d printing methods and new actuators and robots.
Steimle, Laser Technik Journal. Simon Henein: Les ressorts intimes du temps. Bateman on the quality factor.