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    CONVERTER HAVING A TRANSFORMER WITH SECONDARY CENTRAL POINT TAP
    1.
    发明申请
    CONVERTER HAVING A TRANSFORMER WITH SECONDARY CENTRAL POINT TAP 审中-公开

    公开(公告)号：WO2020051288A1

    公开(公告)日：2020-03-12

    申请号：PCT/US2019/049679

    申请日：2019-09-05

    Applicant: THE UNIVERSITY OF TEXAS AT AUSTIN

    Inventor： HUANG, Alex Q.

    IPC: H02M5/257 ,  H02J3/18 ,  H02M5/14 ,  H02M3/335

    Abstract: A method and apparatus include a primary transformer coil, a secondary transformer coil, and a center tapped inductor coupled to the secondary transformer coil. A first switch may be in electrical communication with the center tapped inductor and may be configured to affect the first output voltage. A second switch may be in electrical communication with the center tapped inductor and may be configured to affect the second output voltage. In a particular example with an analog current (AC) output voltage, the two output voltages are out of phase to each other. In a direct current (DC) implementation, the transformer may be operated to output a positive and a negative output voltage. The apparatus may function as a resonant converter, or may operate in non-resonant mode. In one implementation, an H bridge may provide reactive power support. An inductor filter may be in electrical communication with the secondary transformer coil. Where desired, a diode bridge may be in electrical communication with the primary transformer coil.

    METHODS FOR EXPRESSING RNP PARTICLES IN EUKARYOTIC CELLS
    5.
    发明申请
    METHODS FOR EXPRESSING RNP PARTICLES IN EUKARYOTIC CELLS 审中-公开
    用于在核细胞中表达RNP颗粒的方法

    公开(公告)号：WO2005123937A2

    公开(公告)日：2005-12-29

    申请号：PCT/US2005/020893

    申请日：2005-06-14

    Applicant: THE UNIVERSITY OF TEXAS AT AUSTIN ,  CUI, Xiaoxia ,  LAMBOWITZ, Alan ,  SALDANHA, Roland

    Inventor： CUI, Xiaoxia ,  LAMBOWITZ, Alan ,  SALDANHA, Roland

    IPC: C12P21/06

    CPC classification number: C12N15/63 ,  C12N15/85

    Abstract: Provided herein are nucleic acid constructs and methods for producing or enhancing the production of group II intron RNP particles in eukaryotic cells. The present methods comprise introducing at least one nucleic acid construct comprising a nucleic acid encoding a modified or wild type group II intron RNA and a wild-type or modified group II intron-encoded protein into the eukaryotic cell, and maintaining the cell under conditions that allow for expression of the group II intron RNA and the group II intron-encoded protein in the cell. The nucleic acid encoding the group II intron RNA is operably linked to an RNA polymerase I, an RNA polymerase II, or an RNA polymerase III promoter, and the nucleic acid encoding the group II intron-encoded protein is operably linked to an RNA polymerase II promoter. In certain embodiments, a subcellular localization signal is attached to the group II intron-encoded protein.

    Abstract translation: 本文提供了核酸构建体和用于在真核细胞中产生或增强II组内含子RNP颗粒的生产的方法。 本发明的方法包括将包含编码经修饰或野生型II组内含子RNA的核酸和野生型或修饰II型内含子编码蛋白质的至少一种核酸构建体引入真核细胞中，并将细胞维持在 允许在细胞中表达II组内含子RNA和II组内含子编码的蛋白质。 编码II组内含子RNA的核酸可操作地连接到RNA聚合酶I，RNA聚合酶II或RNA聚合酶III启动子，编码II组内含子编码蛋白的核酸可操作地连接到RNA聚合酶II 子。 在某些实施方案中，将亚细胞定位信号连接到II组内含子编码的蛋白质。

    LATERAL SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURE
    6.
    发明申请
    LATERAL SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURE 审中-公开

    公开(公告)号：WO2020051285A1

    公开(公告)日：2020-03-12

    申请号：PCT/US2019/049672

    申请日：2019-09-05

    Applicant: THE UNIVERSITY OF TEXAS AT AUSTIN

    Inventor： HUANG, Alex Q.

    IPC: H01L29/10 ,  H01L29/872 ,  H01L29/08 ,  H01L29/40 ,  H01L29/423 ,  H01L29/78

    Abstract: A method and apparatus include an n-doped layer having a first applied charge, and a p - -doped layer having a second applied charge. The p - -doped layer may be positioned below the n-doped layer. A p + -doped buffer layer may have a third applied charge and be positioned below the p - -doped layer. The respective charges at each layer may be determined based on a dopant level and a physical dimension of the layer. In one example, the n-doped layer, the p - -doped layer, and the p + -doped buffer layer comprise a lateral semiconductor manufactured from silicon carbide (SiC).

    MODULAR HIGH STEP-DOWN DC/DC CONVERTER
    7.
    发明申请
    MODULAR HIGH STEP-DOWN DC/DC CONVERTER 审中-公开

    公开(公告)号：WO2019217577A1

    公开(公告)日：2019-11-14

    申请号：PCT/US2019/031357

    申请日：2019-05-08

    Applicant: THE UNIVERSITY OF TEXAS AT AUSTIN

    Inventor： HUANG, Alex ,  HUANG, Qingyun

    IPC: H02M3/158

    Abstract: Method and apparatus include a circuit having a duty cycle and interleaving modulation configured to realize high density and efficient energy transfer. The circuit may efficiently achieve higher step-down voltage ratios with fewer electrical components. For example, as few as seven electrical devices, such as switches and diodes, may be used to realize at least a four-to-one conversion ratio. The high density of the circuit is advantageous to meet shrinking space demands. A modulator may interleave signals sent to the electrical components (e.g., switching devices via driver circuitry). The driver signals may include a duty cycle of l/(nc+l), where nc is (n-l)/3, and n is the number of devices.

    CONTROL OF LOST CIRCULATION THROUGH A THERMALLY ACTIVATED METALLIC ADDITIVE
    10.
    发明申请
    CONTROL OF LOST CIRCULATION THROUGH A THERMALLY ACTIVATED METALLIC ADDITIVE 审中-公开

    公开(公告)号：WO2022087002A1

    公开(公告)日：2022-04-28

    申请号：PCT/US2021/055662

    申请日：2021-10-19

    Applicant: NEWPARK DRILLING FLUIDS LLC ,  BOARD OF REGENTS, THE UNIVERSITY OF TEXAS AT AUSTIN

    Inventor： AHMED, Amer, Said ,  VAN OORT, Eric

    IPC: C09K8/516 ,  E21B33/138

    Abstract: Compositions for treating a wellbore include an exothermic additive capable of initiating an exothermic event following contact with a carrier fluid. The exothermic additive can have a coating that delays the exothermic event after contact with the carrier fluid. Methods disclosed herein include emplacing a fluid loss treatment composition in an interval of a wellbore, the fluid loss treatment including: a metallic fluid loss additive; an exothermic additive; and a carrier fluid; and reacting the exothermic additive to initiate an increase in temperature m the interval of the wellbore above a melting point of the metallic fluid loss additive; and converting the metallic fluid loss additive to a molten fluid loss additive; and treating the interval of the wellbore with the molten fluid loss additive.

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