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公开(公告)号:US10381953B2
公开(公告)日:2019-08-13
申请号:US15794553
申请日:2017-10-26
Applicant: University of Manitoba
Inventor: Ngai Man Ho , King Man Siu
Abstract: A bidirectional bridgeless buck-boost power converter circuit is provided that can function as both a voltage source inverter (VSI) circuit to transform direct current (DC) voltage to alternating current (AC) voltage and as a power factor corrector (PFC) circuit to transform AC voltage to DC voltage. The disclosed converter fully utilizes inductors to form a CL filter and buck-boost converter energy storage element. Thus, low inductance chokes are used in the converter, which leads to a higher power density and is more cost-effective. Further, the bridgeless configuration minimizes conduction losses of semiconductors, and coupled with the use of low inductance chokes this improves system efficiency.
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公开(公告)号:US20190153467A1
公开(公告)日:2019-05-23
申请号:US16098387
申请日:2017-05-03
Applicant: University of Manitoba
Inventor: Steve Whyard , Mark Belmonte
Abstract: Provided herein are plants that reduce growth of a fungal pathogen, increase resistance of the plant to a fungal pathogen, or a combination thereof. The plant includes a polynucleotide that reduces expression of a coding region present in a fungal pathogen, such as Sclerotinia sclerotiorum or Botrytis cinerea. The polynucleotide can be present on the surface of the plant, expressed by a plant, or a combination thereof. Also provided are methods of making and methods of using the plants.
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公开(公告)号:US10281511B2
公开(公告)日:2019-05-07
申请号:US15526566
申请日:2015-11-13
Applicant: University Of Manitoba
Inventor: Mana Yazdani , Behzad Kordi , Douglas J. Thomson
Abstract: A new passive wireless electric field sensor is disclosed. This sensor does not require direct attachment to a source of power which makes it passive. It is composed of a resonator loaded with varactors. The sensor is interrogated by a remotely located device transmitting and receiving the pulses of sine wave in the resonance frequency range of the sensor. Therefore, the sensor can be mounted in the vicinity of high voltage apparatus and interrogated from a safe distance.
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公开(公告)号:US20190036463A1
公开(公告)日:2019-01-31
申请号:US15987564
申请日:2018-05-23
Applicant: University of Manitoba
Inventor: Cyrus Shafai , Yu Zhou
Abstract: A new tri-electrode topology reduces the control voltage requirement for electrostatic actuators. Conventional parallel plate actuators are dual-electrode systems, formed by the MEMS structure and the drive electrode. By placing a perforated intermediate electrode between these elements, a tri-electrode configuration is formed. This topology enables a low voltage on the intermediate electrode to modulate the electrostatic force of the higher voltage drive electrode, whose voltage remains fixed. Results presented show that in comparison to conventional parallel plate electrostatic actuators, the intermediate electrode's modulating voltage can be as low as 20% of normal, while still providing the full actuation stroke.
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公开(公告)号:US09989481B2
公开(公告)日:2018-06-05
申请号:US15030548
申请日:2014-09-26
Applicant: UNIVERSITY OF MANITOBA
Inventor: Can-ming Hu , Yongsheng Gui , Lei Fu
CPC classification number: G01N22/00 , G01R29/0814 , G01R29/0871
Abstract: A solid state sensor may be used to down-convert microwave signal into a low-frequency voltage or current signal, where its phase still carries the information of a measured continuous wave (CW) microwave phase. Two CW microwaves may be mixed and a solid state sensor used to rectify the mixed microwave into a direct voltage or current signal. The measurement system may include an input node for receiving a microwave signal from a source from which the output microwave is coherently split into two parts by a microwave power divider. Each part may travel in a separate path and couple at the solid state sensor. A lock-in amplifier coupled to the solid state sensor may be used to determine simultaneously a magnitude and phase of the microwave signals received from the microwave source.
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公开(公告)号:US09953556B2
公开(公告)日:2018-04-24
申请号:US15027097
申请日:2014-10-06
Applicant: University of Manitoba
CPC classification number: G09G3/2003 , G02B27/017 , G02B2027/0112 , G02B2027/014 , G09G5/02 , G09G2320/0242 , G09G2340/06 , G09G2340/10
Abstract: In a method of correcting a desired color of a pixel to be displayed in an optical see-through display, a binned-display profile of prescribed colors arranged to be rendered by the display include background colors added to it so that the desired color can be matched to a closest one of the resulting predicted color profile of colors which are predicted to be perceived by a user. The display is then instructed to display the prescribed color which corresponds with the closest matching predicted color such that an observer substantially perceives the desired color. Typically the desired color is only compared to a subset of the predicted colors for efficiency. Additional corrections may take place to improve contrast of graphical content compared to the background in some instance.
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公开(公告)号:US09781909B2
公开(公告)日:2017-10-10
申请号:US14328888
申请日:2014-07-11
Applicant: University of Manitoba
Inventor: Sudharsana R. Ande , Suresh Mishra
IPC: A01K67/027 , C07K14/47
CPC classification number: A01K67/0276 , A01K67/0275 , A01K2227/105 , A01K2267/0362 , C07K14/4703 , C12N2830/008
Abstract: An obese mouse model was developed by overexpressing the mitochondrial protein prohibitin (PHB) in white adipose tissue (WAT) specific manner driven by adipocyte protein 2 (aP2) promoter. These mice begin to develop obesity as a result of mitochondrial remodeling (upregulation of mitochondrial biogenesis and function) in WAT.
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公开(公告)号:US20170231240A1
公开(公告)日:2017-08-17
申请号:US15514702
申请日:2015-09-25
Applicant: UNIVERSITY OF MANITOBA
Inventor: Fuji JIAN , Digvir JAYAS , Paul FIELDS
CPC classification number: A23B9/04 , A01M1/026 , A01M1/226 , G01N1/44 , G01N25/72 , G01N33/02 , G01N33/24
Abstract: A rapid method to detect and/or remove mobile insects inside granular material is presented. The core of this method is to heat grain samples to the desired temperatures (about 55 C) using microwave or radio frequency energy to force insects to move out of the granular material.
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公开(公告)号:US09720220B2
公开(公告)日:2017-08-01
申请号:US15065379
申请日:2016-03-09
Applicant: University of Manitoba
Inventor: Catherine Rui Jin Findlay , Kathleen Margaret Gough
CPC classification number: G02B21/26 , G01N21/35 , G01N2021/1787
Abstract: A tomography accessory device for supporting a sample relative to the imaging assembly of a microscope has an electric positioning motor supported on the existing sample supporting stage of the microscope. An output shaft of the positioning motor is supported for rotation about an output axis parallel to a plane of the stage and a controller acts to control the motor so as to rotate the output shaft between a plurality of different angular positions about the output axis. An adjustable assembly supports a sample holder relative to the outer shaft such that i) the sample holder is translatable relative to the output shaft along at least one translation axis oriented generally perpendicularly to the output axis, and ii) the sample holder is pivotable relative to the output shaft about at least two pivot axes which are transverse to one another and which are generally perpendicular to the output axis.
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公开(公告)号:US09650248B2
公开(公告)日:2017-05-16
申请号:US15176313
申请日:2016-06-08
Applicant: Toyota Motor Engineering & Manufacturing North America, Inc. , The University of Manitoba
CPC classification number: C01B6/23 , C01B6/21 , C01B19/04 , H01F1/0311 , H01F3/00
Abstract: Reagent complexes have two or more elements, formally in oxidation state zero, complexed with a hydride molecule. Complexation with the hydride molecule may be evidenced by shifts to lower binding energies, of one or more electrons in each of the two or more elements, as observed by x-ray photoelectron spectroscopy. The reagents can be useful for the synthesis of multi-element nanoparticles. Preparation of the reagents can be achieved by ball-milling a mixture that includes powders of two or more elements and a hydride molecule.
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