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    GRAPHENE SYNTHESIS
    391.
    发明申请
    GRAPHENE SYNTHESIS 审中-公开

    公开(公告)号：US20190003042A1

    公开(公告)日：2019-01-03

    申请号：US15752387

    申请日：2016-08-12

    Applicant: Commonwealth Scientific and Industrial Research Organisation

    Inventor： Dong Han Seo ,  Shafique Pineda ,  Zhao Jun Han ,  Kostyantyn Ostrikov

    IPC: C23C16/26 ,  C23C16/448 ,  C23C16/46 ,  G01N27/30

    Abstract: The invention relates to methods for the production of high quality graphene. In particular, the invention relates to single-step thermal methods which can be carried out in an ambient-air or vacuum environment using renewable biomass as a carbon source. Specifically, the invention comprises heating a metal substrate and carbon source in a sealed ambient environment to a temperature which produces carbon vapour from the carbon source such that the vapour comes into contact with the metal substrate, maintaining the temperature for a time sufficient to form a graphene lattice and then cooling the substrate at a controlled rate to form a deposited graphene.

    AN APPARATUS FOR ON-LINE DETECTION OF MAGNETIC RESONANCE SIGNALS FROM A TARGET MATERIAL IN A MINERAL SLURRY
    396.
    发明申请
    AN APPARATUS FOR ON-LINE DETECTION OF MAGNETIC RESONANCE SIGNALS FROM A TARGET MATERIAL IN A MINERAL SLURRY 审中-公开

    公开(公告)号：US20180246047A1

    公开(公告)日：2018-08-30

    申请号：US15754489

    申请日：2016-08-24

    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

    Inventor： David Geoffrey MILJAK ,  Peter John COGHILL ,  Jochen LEHMANN-HORN ,  Bojan LOVRIC ,  Richard YONG

    IPC: G01N24/08 ,  G01V3/14 ,  G01R33/36 ,  G01R33/422

    Abstract: An apparatus is provided for on-line detection of magnetic resonance signals from a target in a mineral slurry. The apparatus comprises (i) an electrically conductive housing, (ii) an electrically non-conducting (ENC) pipe to enable throughput of a mineral slurry and configured to pass through the electrically conductive housing, (iii) a first primary coil configured to encircle a section of the ENC pipe within the housing, the or each primary coil defining a measurement zone, (iv) a capacitor unit coupled to a terminal of the or each respective primary coil, where a value of each capacitor unit value is selectable so that a primary coil series resonance is formed close to the value of the magnetic resonance frequency of the target, (v) an RF transmitter operable to transmit a signal to one or more drive coil electrical networks, where an operating frequency of the RF transmitter is set approximately equal to the magnetic resonance frequency of the target, (vi) at least a first drive coil and an associated drive coil electrical network, where the number of drive coils equals the number of primary coils, and where each drive coil and associated drive coil electrical network is positioned relative to a single primary coil to magnetically couple said drive coil to said primary coil, (vii) an impedance monitor coupled to each drive coil electrical network and operable to measure a complex input impedance of said drive coil electrical network; and (viii) an RF receiver adapted to receive from the first or each drive coil electrical network, magnetic resonance signals from the target, the RF receiver forming an output signal of detected signals.

    MEASURING INSTRUMENTS, SYSTEMS AND MAGNETIC GRADIOMETERS
    399.
    发明申请
    MEASURING INSTRUMENTS, SYSTEMS AND MAGNETIC GRADIOMETERS 审中-公开

    公开(公告)号：US20180209266A1

    公开(公告)日：2018-07-26

    申请号：US15747012

    申请日：2016-07-22

    Applicant: Commonwealth Scientific and Industrial Research Organisation

    Inventor： David Alan Clark

    IPC: E21B49/00 ,  G01R33/022 ,  G01V3/26 ,  E21B47/022

    CPC classification number: E21B49/00 ,  E21B47/022 ,  G01R33/022 ,  G01R33/04 ,  G01V3/26

    Abstract: Embodiments generally relate to a measuring instrument. The measuring instrument may comprise: a sensor to measure a property of the local environment; a mechanism configured to cause the sensor to move along a predetermined path relative to a fixed reference frame of the instrument; and a signal processing system configured to receive a processor sensor signal generated by the sensor, perform a Fourier transform on the sensor signal to identify frequency components of the sensor signal, and compare the frequency components of the sensor signal with frequency components associated with the predetermined path to determine a measurement of the property of the local environment. The mechanism may comprise a first member having a first axis and a second axis that is different from the first axis. The mechanism may be configured to cause the first member and the sensor to rotate about the first axis, and to cause the sensor to rotate about the second axis. The sensor may be spatially offset from the first axis. The sensor may be configured to measure one or more vector components of a local force field, such as a magnetic field, for example, and the measuring instrument may comprise a magnetometer or magnetic gradiometer, for example. The measuring instruments disclosed may be suited to downhole applications, such as in a measurement while drilling system, for example.

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