中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1135 records (took 0.024 seconds)

    GRIDDED ION THRUSTER WITH INTEGRATED SOLID PROPELLANT
    142.
    发明申请
    GRIDDED ION THRUSTER WITH INTEGRATED SOLID PROPELLANT 审中-公开

    公开(公告)号：US20180216605A1

    公开(公告)日：2018-08-02

    申请号：US15755322

    申请日：2016-08-30

    Applicant: ECOLE POLYTECHNIQUE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

    Inventor： Dmytro RAFALSKYI ,  Ane AANESLAND

    IPC: F03H1/00 ,  H05H1/54

    CPC classification number: F03H1/0012 ,  F03H1/0043 ,  F03H1/0081 ,  H05H1/54

    Abstract: The invention relates to an ion thruster, comprising: a chamber, a reservoir, comprising a solid propellant (PS), housed in the chamber and comprising a conductive jacket provided with an orifice; means for forming an ion-electron plasma in the chamber, which means are able to sublime the solid propellant in the reservoir, then to generate said plasma in the chamber from the sublimed propellant coming from the reservoir through the orifice; a means for extracting and accelerating the ions and electrons of the plasma out of the chamber, which means comprises at least two grids at one end (E) of the chamber; a radiofrequency AC voltage source for generating a radiofrequency signal comprised between the plasma frequencies of the ions and of the electrons, arranged in series with a capacitor and connected, by one of its outputs and via this capacitor, to one of the grids, with the other grid being connected to the other output of said voltage source; said means for extracting and accelerating and said voltage source making it possible to form, at the output of the chamber, an ion-electron beam.

    Atomic Object Reads for In-Memory Rack-Scale Computing
    143.
    发明申请
    Atomic Object Reads for In-Memory Rack-Scale Computing 审中-公开

    公开(公告)号：US20180173673A1

    公开(公告)日：2018-06-21

    申请号：US15838514

    申请日：2017-12-12

    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)

    Inventor： Alexandros Daglis ,  Boris Robert Grot ,  Babak Falsafi

    IPC: G06F15/173 ,  G06F12/0815 ,  G06F12/128 ,  G06F9/52

    CPC classification number: G06F15/17331 ,  G06F9/524 ,  G06F9/528 ,  G06F12/0815 ,  G06F12/0831 ,  G06F12/128 ,  G06F2212/1041 ,  G06F2212/283 ,  G06F2212/507

    Abstract: A distributed memory system including a plurality of chips, a plurality of nodes that are distributed across the plurality of chips such that each node is comprised within a chip, each node includes a dedicated local memory and a processor core, and each local memory is configured to be accessible over network communication, a network interface for each node, the network interface configured such that a corresponding network interface of each node is integrated in a coherence domain of the chip of the corresponding node, wherein each of the network interfaces are configured to support a one-sided operation, the network interface directly reading or writing in the dedicated local memory of the corresponding node without involving a processor core, and wherein the one-sided operation is configured such that the processor core of a corresponding node uses a protocol to directly inject a remote memory access for read or write request to the network interface of the node, the remote memory access request allowing to read or write an arbitrarily long region of a memory of a remote node,

    Infrared absorption spectroscopy
    147.
    发明授权
    Infrared absorption spectroscopy 有权

    公开(公告)号：US09897542B2

    公开(公告)日：2018-02-20

    申请号：US14336537

    申请日：2014-07-21

    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)

    Inventor： Ronen Adato ,  Hatice Altug

    IPC: G01J5/02 ,  G01N21/552 ,  G01N21/65 ,  G01N21/05 ,  G01N21/3577

    CPC classification number: G01N21/554 ,  G01N21/05 ,  G01N21/3577 ,  G01N21/658

    Abstract: The present invention relates to an infrared absorption spectroscopy apparatus including an infrared transparent substrate comprising a first and second surface, an array of plasmonic nano-antennas arranged on the first surface of the infrared transparent substrate, a flow cell for holding a liquid to allow spectroscopy measurements in a liquid environment, the array of plasmonic nano-antennas being located inside the flow cell, an optical source providing an incident light probe signal incident on at least a part of the array of plasmonic nano-antennas via the second surface of the infrared transparent substrate, and an optical element to collect reflected light signal reflected by said part of the array of plasmonic nano-antennas.

    CSMA/CA IN TIME AND FREQUENCY DOMAINS
    150.
    发明申请
    CSMA/CA IN TIME AND FREQUENCY DOMAINS 审中-公开

    公开(公告)号：US20170347377A1

    公开(公告)日：2017-11-30

    申请号：US15604486

    申请日：2017-05-24

    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)

    Inventor： Julien Herzen ,  Patrick Thiran ,  Albert Banchs ,  Vsevolod Shneer

    IPC: H04W74/08 ,  H04W72/04

    CPC classification number: H04W74/0825

    Abstract: The present invention concerns a method for a communication device to transmit a data packet in a wireless communication system. The method comprises: determining (21) a first set of transmission parameters comprising a first central transmission frequency and a first spectral bandwidth; transmitting (33) a first data packet by applying the first set of transmission parameters; determining (35) whether or not the first data packet collided with a second data packet from a second communication device; determining (37) a second set of transmission parameters, which in case of collision comprises a second central transmission frequency, different from the first central transmission frequency, and a second spectral bandwidth, which is different from the first spectral bandwidth with a first, non-zero probability and the same as the first spectral bandwidth with a second probability; and transmitting (33) a second data packet by applying the second set of transmission parameters.

Patent Agency Ranking