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公开(公告)号:US10569248B2
公开(公告)日:2020-02-25
申请号:US14773431
申请日:2014-03-06
Inventor: Endre Horváth , László Forró , Arnaud Magrez
IPC: B01J13/00 , H01M4/485 , B01J21/06 , B01J35/00 , B01J35/10 , C01G23/04 , C09C1/36 , C09K5/14 , H01B1/08 , H01G9/20 , H01G11/46 , H01L35/22 , H01M10/0525 , H01M4/02
Abstract: The invention relates to titanium oxide aerogels, in particular to titanium oxide binary or ternary (e.g. titanium oxide-carbon) aerogel monoliths possessing ordered meso- and macroporosity. The porous scaffold can be made with or without addition of binders and/or surfactants. The aerogel obtained by this method has a specific surface area greater than 60 m2/g and porosity larger than 60%. The surface area ranges from 60 to 300 m2/g. The porosity can reach as high as 99.6%. The size of the titanium oxide crystals are between 5 nm and 100 nm. The aerogel contains 100% titanium oxide. The composite (binary or ternary) aerogel can be prepared by adding at least 10% carbon in the form of (carbon nanotubes, carbon nanofibers, carbon microfibers, exfoliated graphene, cellulose fibers, polymer fibers, metallic and metal oxide nano and microfibers etc.). The aerogel can be prepared with a predeterminable shape. It can be shaped in a mold having a shape of a cylinder, cube, sheet or sphere. The aerogel can be also transformed into a supported or self-standing film with a thickness. The material can be used as a self-cleaning filter e.g. in a solar-thermal water and air purification system, in mesoscopic solar cells e.g. dye sensitized solar cells, multifunctional filler in polymer composites, in ceramics, in metals, thermoelectric material to convert (waste) heat into electricity, heat insulation material and electrode material in lithium ion batteries and supercapacitors.
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公开(公告)号:US20200038867A1
公开(公告)日:2020-02-06
申请号:US16338681
申请日:2017-09-29
Inventor: Charles BAROUD , Raphaël TOMASI
Abstract: Method for handling at least one first microdrop and at least one second microdrop in a microfluidic system including a capillary trap that has a first trapping zone and a second trapping zone, the method including steps consisting of: (i) trapping the first microdrop in the first trapping zone, and (ii) trapping the second microdrop in the second trapping zone, the first and the second trapping zone being arranged such that the first and the second microdrops are in contact with each other, the first and the second trapping zones being adapted such that the trapping forces returned to one of the microdrops are different.
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公开(公告)号:US20190393018A1
公开(公告)日:2019-12-26
申请号:US16347736
申请日:2017-11-08
Inventor: Erik JOHNSON , Jean-Paul BOTH
Abstract: The invention relates to a circuit (100) able to achieve simultaneous impedance matching between a generator (G) and a load (CH) for a power supply signal comprising at least two distinct frequencies.
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公开(公告)号:US20190354841A1
公开(公告)日:2019-11-21
申请号:US16528807
申请日:2019-08-01
Inventor: Henry Markram , Rodrigo de Campos Perin , Thomas K. Berger
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for organizing trained and untrained neural networks. In one aspect, a neural network device includes a collection of node assemblies interconnected by between-assembly links, each node assembly itself comprising a network of nodes interconnected by a plurality of within-assembly links, wherein each of the between-assembly links and the within-assembly links have an associated weight, each weight embodying a strength of connection between the nodes joined by the associated link, the nodes within each assembly being more likely to be connected to other nodes within that assembly than to be connected to nodes within others of the node assemblies.
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公开(公告)号:US20190339255A1
公开(公告)日:2019-11-07
申请号:US16403775
申请日:2019-05-06
Inventor: Samy GOBAA , Matthias LUTOLF
Abstract: A method for preparing a topographically structured hydrogel microarray is described comprising the steps of a) providing one or more types of biomolecule(s) on top of micropillars of an array of micropillars, preferably by means of robotical spotting, b) providing a partially crosslinked hydrogel on a substrate, preferably attached to a substantially rigid and/or planar substrate, c) simultaneously soft-embossing a hydrogel microwell array and transferring the biomolecule(s) from the micropillars to the microwells by pressing the micropillars of the array of step a) onto the partially crosslinked layer of hydrogel of step b) until substantial completion of crosslinking and d) demolding the array of micropillars of step a) from the hydrogel microwell array of step c). The method according to the invention has the advantages of resulting in higher biochemical patterning precision, allowing for modulation of biochemical parameters by interfacing microarray manufacture with robotic technology and rendering the microarrays obtained compatible with existing read-out systems such as microscopes. Further, the elasticity of the hydrogel can be varied by tuning its shear modulus.
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公开(公告)号:US20190334092A1
公开(公告)日:2019-10-31
申请号:US16315548
申请日:2017-07-07
Applicant: QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT , ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
Inventor: KASPARAS RAKSTYS , SANGHYUN PAEK , MUHAMMAD SOHAIL , KLAUS H. DAMEN , MOHAMMAD KHAJA NAZEERUDDIN
Abstract: The dispiro-oxepine/dispiro-thiapine derivatives for optoelectronic semiconductors is a compound based on a structure having a functionalized dispiro compound of formula (Ia) or (Ib) with the core unit being a seven-membered heterocycle oxepine or thiapine, the derivative being formed by combining (Ia) or (Ib): with two moities selected from K1 and K2: The derivative is used as a hole transporting material in an optoelectronic and/or photoelectrochemical device.
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公开(公告)号:US20190297298A1
公开(公告)日:2019-09-26
申请号:US15934113
申请日:2018-03-23
Inventor: Sami ARPA , Sabine SÜSSTRUNK , Roger D. HERSCH
IPC: H04N5/74 , G03B21/26 , H04N1/32 , H04N21/414
Abstract: We present a method for hiding images in synthetic videos and reveal them by temporal averaging. We developed a visual masking method that hides the input image both spatially and temporally. Our masking approach consists of temporal and spatial pixel by pixel temporal variations of the frequency band coefficients representing the image to be hidden. These variations ensure that the target image remains invisible. In addition, by applying a temporal expansion function derived from a dither matrix, we allow the video to carry a visible message that is different from the hidden image. The image hidden in the video can be revealed by software averaging, or with a camera, by long exposure photography. The method finds applications in the secure transmission of digital information.
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公开(公告)号:US20190275073A1
公开(公告)日:2019-09-12
申请号:US16319009
申请日:2017-07-20
Inventor: Samuel JONES , Francesco STELLACCI
IPC: A61K31/724 , A61P31/22 , A61P31/14
Abstract: The invention relates to virucidal compounds, virucidal compositions comprising thereof and uses thereof in treatment of viral infections, for sterilizations and for disinfections.
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公开(公告)号:US20190269917A1
公开(公告)日:2019-09-05
申请号:US16292227
申请日:2019-03-04
Inventor: Gregoire Courtine , Nikolaus Wenger , Eduardo Martin Moraud , Silvestro Micera , Marco Bonizzato
IPC: A61N1/36 , A61B5/11 , A61N1/05 , A61B5/04 , A61B5/0476 , A61B5/0488 , A61B5/00
Abstract: The present invention provides a closed-loop system for real-time control of epidural and/or subdural electrical stimulation comprising: means for applying to a subject neuromodulation with adjustable stimulation parameters, said means being operatively connected with a real-time monitoring component comprising sensors continuously acquiring feedback signals from said subject, said signals being neural signals and/or signals providing features of motion of said subject, said system being operatively connected with a signal processing device receiving said feedback signals and operating real-time automatic control algorithms, said signal processing device being operatively connected with said means and providing said means with new stimulation parameters, with minimum delay. The system of the invention improves consistency of walking in a subject with a neuromotor impairment. A Real Time Automatic Control Algorithm is used, comprising a feedforward component employing a single input-single output model (SISO), or a multiple input-single output (MISO) model.
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公开(公告)号:US20190240664A1
公开(公告)日:2019-08-08
申请号:US16333297
申请日:2017-09-13
Inventor: Bart DEPLANCKE , Johannes BUES , Riccardo DAINESE , Marjan BIOCANIN
CPC classification number: B01L3/502753 , B01L3/502715 , B01L3/502738 , B01L3/502784 , B01L2300/0883 , B01L2400/0481 , B01L2400/0655 , C12Q1/6806 , G06T7/0014 , C12Q2563/159 , C12Q2565/619 , C12Q2565/629
Abstract: The present invention concerns a microfluidic device or chip including at least one inlet for introducing at least one object into the device; an oil inlet for introducing an oil that supports droplet formation into the device or a droplet forming substance inlet for introducing a droplet forming substance into the device; a co-encapsulation area or structure where the at least one object is encapsulated by the droplet; a microfluidic tubing or channel for transporting the at least one object to an entrance of the co-encapsulation area or structure; an oil supporting droplet formation microchannel or droplet forming substance microchannel connected to the microfluidic tubing or channel to place a liquid of the microfluidic tubing or channel in direct contact with the oil that supports droplet formation or the droplet forming substance; and a droplet microchannel or tubing for transporting the droplet.
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