中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

64 records (took 0.022 seconds)

    Yeast biofilm based fuel cell
    2.
    发明授权
    Yeast biofilm based fuel cell 有权
    酵母生物膜基燃料电池

    公开(公告)号：US08546002B2

    公开(公告)日：2013-10-01

    申请号：US12606056

    申请日：2009-10-26

    Applicant: Rahul Ganguli ,  Vivek Mehrotra

    Inventor： Rahul Ganguli ,  Vivek Mehrotra

    IPC: H01M8/16 ,  H01M8/00

    CPC classification number: H01M8/16 ,  C12N1/16 ,  C12N11/14 ,  C12N13/00 ,  Y02E60/527 ,  Y02P70/56

    Abstract: A yeast biofilm microbial fuel cell has anode and cathode chambers, each containing an electrolyte medium, separated by a proton conducting membrane. A baker's yeast biofilm is induced to form on the anode under electrical poising. A method of making the MFC includes adding baker's yeast and yeast nutrient fuel source to the anode solution, connecting a resistor across the anode and cathode to enable current flow through the resistor for a selected time for poising the anode and formation of the anodic yeast biofilm, replacing the anode solution with a fresh quantity of yeast-free solution, adding fuel source to the solution, and continuing to run the MFC for a selected time under resistance. The steps of replacing the anode solution, adding fuel source and running the cell under load are repeated until the baker's yeast has formed a suitable anodic biofilm.

    Abstract translation: 酵母生物膜微生物燃料电池具有阳极室和阴极室，每个室包含由质子传导膜隔开的电解质介质。 在电气起动下，在阳极上诱导面包师的酵母生物膜形成。 制造MFC的方法包括将面包师的酵母和酵母营养燃料源加入到阳极溶液中，在阳极和阴极之间连接电阻器，以使电流流过电阻器一段选择的时间用于阳极氧化和形成阳极酵母生物膜 ，用新鲜的无酵母溶液代替阳极溶液，向溶液中加入燃料源，并在电阻下继续运行MFC一段选定的时间。 重复更换阳极溶液，添加燃料源和运行电池的步骤，直到面包师的酵母形成合适的阳极生物膜。

    SYSTEM FOR MITIGATING MARINE BIO-FOULING OF AN UNDERWATER STRUCTURE
    3.
    发明申请
    SYSTEM FOR MITIGATING MARINE BIO-FOULING OF AN UNDERWATER STRUCTURE 有权
    水下结构的海洋生物泄漏系统

    公开(公告)号：US20110081207A1

    公开(公告)日：2011-04-07

    申请号：US12572010

    申请日：2009-10-01

    Applicant: Rahul Ganguli ,  Vivek Mehrotra

    Inventor： Rahul Ganguli ,  Vivek Mehrotra

    IPC: E02D5/60

    CPC classification number: B63B59/00 ,  Y02T70/121

    Abstract: A biomimetic system for mitigating marine bio-fouling is disclosed which is based upon the sacrificial skin mechanism found in the pilot whale species. The anti-bio-fouling system is characterized by the continuous in-situ underwater formation of a conformal protective skin around a submerged object or structure and employs a circulatory system embedded in a diffuser layer conformably fitted and secured to the structure to controllably deliver a sacrificial skin-forming material to the structural surface. The system advantageously utilizes the unique chemical properties of the skin-forming material to alter the material's viscosity in response to contact with sea water such that the material is uniformly distributed over the structure surface by a self-diffusion process, notwithstanding structural configuration or gravitational orientation, thus forming a stabilized waterproof layer or sacrificial skin. The sacrificial skin controllably self-dissolves and is shed in response to continuous contact with sea water, thereby carrying away the marine bio-fouling material.

    Abstract translation: 公开了一种减轻海洋生物污染的仿生系统，其基于在飞行员鲸鱼物种中发现的牺牲皮肤机制。 防生物污染系统的特征在于在水下物体或结构周围连续原位水下形成保形皮肤，并采用嵌入扩散层中的循环系统，该扩散层适配并固定到结构上以可控地传送牺牲物 成皮材料到结构表面。 该系统有利地利用皮肤形成材料的独特化学性质来响应于与海水接触而改变材料的粘度，使得材料通过自扩散方法均匀地分布在结构表面上，尽管结构构型或重力取向 ，从而形成稳定的防水层或牺牲性皮肤。 牺牲皮肤可控地自我溶解并且响应于与海水的持续接触而脱落，从而携带海洋生物污损物质。

    Vertical winding structures for planar magnetic switched-mode power converters
    4.
    发明授权
    Vertical winding structures for planar magnetic switched-mode power converters 有权
    平面磁开关电源转换器的垂直绕组结构

    公开(公告)号：US07554430B2

    公开(公告)日：2009-06-30

    申请号：US12015234

    申请日：2008-01-16

    Applicant: Vivek Mehrotra ,  Jian Sun ,  Sriram Chandrasekaran

    Inventor： Vivek Mehrotra ,  Jian Sun ,  Sriram Chandrasekaran

    IPC: H01F5/00

    CPC classification number: H01F27/2804 ,  H01F27/255 ,  H02M3/28

    Abstract: A vertical winding structure for planar integrated magnetics used in switched-mode power converters maintains close coupling between the different windings but reduces the eddy current losses, lowers the DC winding resistance and reduces the number of layers of the PCB. Vertical and horizontal windings can be used together without sacrificing these performance advantages and further minimizing the capacitive coupling between the outer-leg windings and the center-leg winding. This winding structure can be used in a wide range of magnetic structures including isolated and non-isolated CDRs, interleaved CDRs, and buck and boost converters.

    Abstract translation: 用于开关模式功率转换器的平面集成磁体的垂直绕组结构保持不同绕组之间的紧密耦合，但是减小了涡流损耗，降低了直流绕组电阻并减少了PCB的层数。 垂直和水平绕组可以一起使用，而不会牺牲这些性能优势，并进一步最小化外腿绕组和中心腿绕组之间的电容耦合。 该绕组结构可用于宽范围的磁结构，包括隔离和非隔离CDR，交错CDR，降压和升压转换器。

    Synthesis of Nanocomposites Including Metal Oxides and Metallic Alloys
    6.
    发明申请
    Synthesis of Nanocomposites Including Metal Oxides and Metallic Alloys 审中-公开
    包含金属氧化物和金属合金的纳米复合材料的合成

    公开(公告)号：US20080128649A1

    公开(公告)日：2008-06-05

    申请号：US11854959

    申请日：2007-09-13

    Applicant: Vivek Mehrotra ,  Ira Goldberg

    Inventor： Vivek Mehrotra ,  Ira Goldberg

    IPC: H01F1/00 ,  C08K3/22 ,  C09K11/02

    CPC classification number: C08K3/22 ,  C08K3/24 ,  C09D5/22 ,  C09K11/02 ,  C09K11/08 ,  H01F1/0063

    Abstract: A method of forming nanocomposites within a polymer structure includes exposing a wettable polymer having ion-exchangeable groups pendant therefrom to an aqueous solution of a soluble salt containing metal ions, the metal ions replacing, by ion exchange, the pendant groups on the polymer. After ion exchange, the polymer is repetitively exposed to an oxidizing and/or reducing agent to form metal oxides, metal particles, metallic alloys, or combinations and mixtures thereof, trapped within the polymer structure.

    Abstract translation: 在聚合物结构内形成纳米复合材料的方法包括将其上具有离子交换基团的可湿性聚合物暴露于含有金属离子的可溶性盐的水溶液中，金属离子通过离子交换将聚合物上的侧基置换。 离子交换后，聚合物被重复地暴露于氧化和/或还原剂中以形成被捕获在聚合物结构内的金属氧化物，金属颗粒，金属合金或其组合和混合物。

    Extended E matrix integrated magnetics (MIM) core
    7.
    发明授权
    Extended E matrix integrated magnetics (MIM) core 有权
    扩展E矩阵集成磁性（MIM）核心

    公开(公告)号：US07280026B2

    公开(公告)日：2007-10-09

    申请号：US10922067

    申请日：2004-08-19

    Applicant: Sriram Chandrasekaran ,  Vivek Mehrotra

    Inventor： Sriram Chandrasekaran ,  Vivek Mehrotra

    IPC: H01F27/24

    CPC classification number: H01F27/24 ,  H01F3/08 ,  H01F17/04 ,  H01F27/255 ,  H01F30/06 ,  H01F2038/006 ,  H02M7/043 ,  Y10T29/4902

    Abstract: A matrix integrated magnetics (MIM) “Extended E” core in which a plurality of outer legs are disposed on a base and separated along a first outer edge to define windows therebetween. A center leg is disposed on the top region of the base and separated from the outer legs to define a center window. The center leg is suitably positioned along a second outer edge opposite the first or between outer legs positioned along opposing outer edges. A plate is disposed on the outer legs opposite the base.

    Abstract translation: 矩阵集成磁体（MIM）“扩展E”磁芯，其中多个外部支脚设置在基座上并沿着第一外边缘分离以在其间限定窗口。 中心腿设置在基部的顶部区域上并与外腿分离以限定中心窗口。 中心腿沿着沿着相对的外边缘定位的第一外侧或第二外腿的第二外边缘适当地定位。 在与底座相对的外腿上设置板。

    Power converter employing integrated magnetics with a current multiplier rectifier and method of operating the same
    8.
    发明申请
    Power converter employing integrated magnetics with a current multiplier rectifier and method of operating the same 有权
    采用具有电流倍增器整流器的集成磁体的功率转换器及其操作方法

    公开(公告)号：US20060187684A1

    公开(公告)日：2006-08-24

    申请号：US11349637

    申请日：2006-02-08

    Applicant: Sriram Chandrasekaran ,  Vivek Mehrotra

    Inventor： Sriram Chandrasekaran ,  Vivek Mehrotra

    IPC: H02M3/335

    CPC classification number: H02M3/337 ,  H02M3/33592 ,  H02M3/3376 ,  Y02B70/1475

    Abstract: A power converter having input and output nodes and a method of operating the same. In one embodiment, the power converter includes a switching circuit including first, second and third active phase legs. Each of the first, second and third active legs includes a first switch coupled to one of the input nodes and a second switch coupled to another of the input nodes and has a common switching node therebetween. The power converter further includes a magnetic device including first, second and third primary windings, and first, second and third secondary windings. The first, second and third primary windings are coupled to the common switching node of the first, second and third active phase legs, respectively. The power converter still further includes a rectifier including first, second and third rectifier elements interposed between the first, second and third secondary windings, respectively, and one of the output nodes.

    Abstract translation: 一种具有输入和输出节点的功率转换器及其操作方法。 在一个实施例中，功率转换器包括包括第一，第二和第三有源相支路的开关电路。 第一，第二和第三活动腿中的每一个包括耦合到输入节点之一的第一开关和耦合到另一个输入节点的第二开关，并且在它们之间具有公共的开关节点。 功率转换器还包括包括第一，第二和第三初级绕组以及第一，第二和第三次级绕组的磁性装置。 第一，第二和第三初级绕组分别耦合到第一，第二和第三有源相位脚的公共开关节点。 功率转换器还包括整流器，其包括分别插入在第一，第二和第三次级绕组之间的第一，第二和第三整流器元件以及输出节点之一。

    Vertically packaged switched-mode power converter
    9.
    发明授权
    Vertically packaged switched-mode power converter 有权
    垂直封装的开关模式电源转换器

    公开(公告)号：US07012414B1

    公开(公告)日：2006-03-14

    申请号：US10922062

    申请日：2004-08-19

    Applicant: Vivek Mehrotra ,  Jian Sun ,  Sriram Chandrasekaran

    Inventor： Vivek Mehrotra ,  Jian Sun ,  Sriram Chandrasekaran

    IPC: G05F3/06

    CPC classification number: H02M7/003 ,  H01F27/2804 ,  H01F2038/006 ,  H05K1/144

    Abstract: A vertically packaged cellular power converter solves the problems associated with conventional designs and paves the way for a cellular circuit architecture with ultra-low interconnect resistance and inductance. The vertical packaging results in a power flow in the vertical direction (from the bottom to the top) with very short internal interconnects, thereby minimizing the associated conduction losses and permitting high conversion efficiency at high currents. The cellular architecture is ideally suited for generating multiple supply voltages.

    Abstract translation: 垂直封装的蜂窝功率转换器解决了与常规设计相关的问题，为具有超低互连电阻和电感的蜂窝电路架构铺平了道路。 垂直封装导致垂直方向（从底部到顶部）的功率流具有非常短的内部互连，从而最小化相关联的传导损耗并且在高电流下允许高的转换效率。 蜂窝结构非常适合产生多个电源电压。

Patent Agency Ranking