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Simon Nessim Henein

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Publications associées (103)

Needle for invasive medical use and needle assembly

Simon Nessim Henein, Charles Baur

A needle for invasive medical use includes a long extended cylindrical needle shaft having an axis and an outer surface area, with a short shaft end at a first end of the shaft with a beveled tip with a pointed end, and a needle hub attached to a second en ...

2016

Dard bi-fonctionnel, dispositif de verrouillage et de sécurisation pour pièce d’horlogerie et échappement horloger

Simon Nessim Henein, Ilan Vardi

La présente invention concerne un dispositif de verrouillage et de sécurisation pour pièce d’horlogerie, notamment pour intégration dans un échappement à ancre, le dispositif comportant un premier mobile (1) et un deuxième mobile (2), le premier mobile (1) ...

2016

Investigating The Size-Dependent Static And Dynamic Behavior Of Circular Micro-Plates Subjected To Capillary Force

Simon Nessim Henein, Mohammad Hussein Kahrobaiyan, Ilan Vardi

The size-dependent static deflection, pull-in instability and resonant frequency of a circular microplate under capillary force have been studied using modified couple stress elasticity theory. SiZe-dependency is a phenomenon in which the normalized quanti ...

Amer Soc Mechanical Engineers2016

General 2 degree of freedom isotropic harmonic oscillator and associated time base without escapement or with simplified escapement

Simon Nessim Henein, Ilan Vardi, Lennart 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 mot ...

2015

Xy isotropic harmonic oscillator and associated time base without escapement or with simplified escapement

Simon Nessim Henein, Ilan Vardi, Lennart Rubbert

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 ti ...

2015

A statistical shape model of the human second cervical vertebra

Simon Nessim Henein, Charles Baur, Reto Meuli, Marine Chantal Elisabeth Geneviève Clogenson

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) ...

Springer Heidelberg2015

6 DOF repeatability measurement setup for measuring position of assembled silicon parts with nanometric resolution

Simon Nessim Henein, François Barrot, Florent Cosandier, Johannes Richard Cornelis Geerit Kruis, Pascal Gentsch

This article presents a test setup dedicated to the measurement of the 6 degrees of freedom relative positioning assembly repeatability of three micro-manufactured parts equivalent to those composing a mesoscale flexure-based robot. The typical size of the ...

2015

Isotropic springs based on parallel flexure stages

Simon Nessim Henein, Nicolas Ferrier, Roland Andreas Bitterli, Sebastian Krzysztof Fifanski, Ilan Vardi, Lennart Rubbert

We define isotropic springs to be central springs having the same restoring force in all directions. In previous work, we showed that isotropic springs can be advantageously applied to horological time bases since they can be used to eliminate the escapeme ...

2015

TIMEPIECE OSCILLATOR

Simon Nessim Henein

The invention relates to a rotating oscillator for a timepiece comprising a support element designed to allow the oscillator to be assembled on a timepiece, a balance, a plurality of flexible blades connecting the support element to the balance and able to ...

2015

Un nouveau régulateur mécanique pour une réserve de marche exceptionnelle

Simon Nessim Henein, Philippe Schwab

«Voyager, c’est bien utile, ça fait travailler l’imagination» (Céline). C’est à l’occasion d’un voyage en train entre Neuchâtel et Genève que Pierre Genequand, alors ingénieur au CSEM, eut l’idée d’associer les avantages des structures flexibles et les car ...

2014

Optical measuring element having a single-piece structure

Simon Nessim Henein

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 elasti ...

Sensoptic SA Losone2014

On the experimental determination of the efficiency of piezoelectric impact-type energy harvesters using a rotational flywheel

Simon Nessim Henein, Nico de Rooij, Robert Andrew Lockhart, Danick Briand, Pattanaphong Janphuang

This paper demonstrates a novel methodology using a rotational flywheel to determine the energy conversion efficiency of the impact based piezoelectric energy harvesters. The influence of the impact speed and additional proof mass on the efficiency is pres ...

Iop Publishing Ltd2013

Méthode de libération d'une pièce micromécanique et pièce micromécanique comprenant des attaches sacrificielles

Simon Nessim Henein, François Barrot, Johannes Richard Cornelis Geerit Kruis, Rémy Fournier

A method for fabricating a micromechanical part from a substrate in which the part is fabricated by providing a plurality of fasteners between the part and the substrate, the fasteners being sacrificial, characterized in that the fasteners include at least ...

Organisation Mondiale de la Propriété Intellectuelle2013

Tunable Extended-cavity Diode Laser Based on a Novel Flexure-mechanism

Simon Nessim Henein, Jean-Marc Breguet

This article presents the design, implementation and characterization of a Littman-Metcalf extended-cavity diode laser. The extended cavity is closed by a roof (retro-reflecting) prism. The wavelength tuning is based on a two degrees-of-freedom monolithic ...

Informa UK Limited2013

Optical force sensing element and microsurgical instrument

Simon Nessim Henein

The present invention related to an optical force sensing element for microsurgical instruments (22), for measuring force F in three orthogonal directions x, y, z, comprising a monolithic cylinder structure (1), a cylindrical surface (4) and a top surface ...

Sensoptic SA Losone2013

Focusing System Flexure-Mechanism for the Close-Up Imager Instrument of the ExoMars Rover

Simon Nessim Henein, Philippe Schwab

This paper presents the design of a flexure based focusing system, part of the Close-Up Imager (CLUPI) instrument which is planned to be integrated on the future ExoMars NASA-ESA Mars Rover to be launched in 2018. Various design trade-offs are discussed, i ...

2012

Immobilizing device for a toothed wheel

Simon Nessim Henein, Fabiano Colpo

The invention relates to an immobilizing device for a toothed wheel suitable for the field of horology where it can be part of a direct- or indirect-impulse escapement, in particular in a wristwatch. This immobilizing device (1, 2, 3, 4, 5, 6) comprises: — ...

European Patent Office2011

PRIGO: Parallel Robotics Inspired Goniometer for Protein Crystallography

Simon Nessim Henein, Jean-Marc Breguet, Wayne Glettig

This paper presents a novel goniometer which is designed for use with X-ray diffraction analysis in protein crystallography. The PRIGO (Parallel Robotics Inspired Goniometer) is a 6 degree of freedom positioning device, allowing 3 translations (x, y, z) an ...

2009

Correcteur d'isochromisme pour échappement horloger et échappement muni d'un tel correcteur

Simon Nessim Henein, Philippe Schwab

The present invention provides an image forming apparatus (210) as well as a developing cartridge (240) for use in an image forming apparatus, wherein a contact plate of an electrode (247) of the developing catridge is disposed to contact a bias terminal ( ...

European Patent Office2009

TOMCAT: A beamline for TOmographic Microscopy and Coherent rAdiology experimenTs

Simon Nessim Henein, Amela Groso, Marco Stampanoni

Synchrotron‐based X‐ray Tomographic Microscopy (SRXTM) is nowadays a powerful technique for non‐destructive, high‐resolution investigations of a broad kind of materials. High‐brilliance and high‐coherence third generation synchrotron radiation facilities a ...

2007

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