System and method for continuous transesterification of oils
    1.
    发明授权
    System and method for continuous transesterification of oils 有权
    油的连续酯交换的系统和方法

    公开(公告)号:US09468899B2

    公开(公告)日:2016-10-18

    申请号:US13950499

    申请日:2013-07-25

    Abstract: A multi-chamber continuous tubular reactor for the transesterification of oil (e.g., waste cooking oil and the like) and methanol into glycol and fatty acid methyl (ethel) ester. The reactor includes a plurality of tubes, a plurality of fluidly coupled chambers, an inlet fluidly coupled to a first chamber of the plurality of chambers for receiving reactants, and an outlet fluidly coupled to a second chamber of the plurality of chambers for receiving products generated during a reaction within the plurality of chambers. At least one of the plurality of tubes is at least partially disposed within a lumen of another one of the plurality of tubes. The plurality of fluidly coupled chambers are defined, at least in part, by the plurality of tubes. The reactor is configured to generate a generally helical flow pattern through at least one of the plurality of chambers.

    Abstract translation: 用于将油(例如,废食油等)和甲醇酯交换成二醇和脂肪酸甲酯(ethel)酯的多室连续管式反应器。 反应器包括多个管,多个流体耦合的腔室,流体耦合到多个腔室中用于接收反应物的第一腔室的入口以及流体耦合到多个腔室中的第二腔室的出口,用于接收所产生的产物 在多个室内的反应期间。 所述多个管中的至少一个至少部分地设置在所述多个管中的另一个管的内腔中。 多个流体耦合的腔室至少部分地被多个管子限定。 反应器构造成通过多个室中的至少一个产生大致螺旋状的流动模式。

    MACHINE-BASED PATIENT-SPECIFIC SEIZURE CLASSIFICATION SYSTEM
    3.
    发明申请
    MACHINE-BASED PATIENT-SPECIFIC SEIZURE CLASSIFICATION SYSTEM 有权
    基于机器的患者特异性分类系统

    公开(公告)号:US20140235990A1

    公开(公告)日:2014-08-21

    申请号:US14182570

    申请日:2014-02-18

    Abstract: This disclosure is directed to a machine-based patient-specific seizure classification system. In general, an example system may comprise a non-linear SVM seizure classification system-on-chip (SoC) with multichannel EEG data acquisition and storage for epileptic patients is presented. The SoC may integrate a hardware-efficient log-linear Gaussian Basis Function engine, floating point piecewise linear natural log, and low-noise, high dynamic range readout circuits. In at least one example implementation, the SoC may consume 1.83W/classification while classifying 8 channel results with an average detection rate, average false alarm rate and latency of 95.1%, 0.94% and

    Abstract translation: 本公开涉及基于机器的患者特异性发作分类系统。 一般来说,示例系统可以包括用于癫痫患者的具有多通道EEG数据采集和存储的非线性SVM癫痫发作分类系统级芯片(SoC)。 SoC可以集成硬件高效的对数线性高斯基函数引擎,浮点分段线性自然对数和低噪声,高动态范围读出电路。 在至少一个示例实现中,SoC可以消耗1.83W /分类,同时对平均检测率,平均误报率和等待时间分别为95.1%,0.94%和<2s的8个信道结果进行分类。

    Fault handling system for doubly fed induction generator
    7.
    发明授权
    Fault handling system for doubly fed induction generator 有权
    双馈感应发电机故障处理系统

    公开(公告)号:US09461573B2

    公开(公告)日:2016-10-04

    申请号:US13869235

    申请日:2013-04-24

    CPC classification number: H02P9/10 F03D9/257 H02P9/007 H02P29/032 Y02E10/725

    Abstract: Fault Ride Through (FRT) transient management system configured to enhance the FRT capability doubly-fed induction generator (DFIG)-based wind turbines. A grid side converter (GSC) introduces shunt and series compensation for normal operation and voltage dips, respectively. A braking resistor may be added to smooth switching transients from shunt to series interfaces and dissipate excessive power from the GSC. To attain a flexible control solution for balanced and unbalanced fault conditions, the transient management scheme may employ positive and negative sequence controllers. The system dynamics for the series compensation topology may be analyzed using small-signal linear model. Based on the mathematical model, the controller may be tuned to balance voltage regulation performance and transient stability margins with consideration of various operating conditions. The system benefits from a low component count, simple protection structure, and improved FRT performance with effective compensation to the electric grid.

    Abstract translation: 故障穿越(FRT)瞬态管理系统配置为增强FRT能力双馈感应发电机(DFIG)的风力发电机。 电网侧转换器(GSC)分别为正常工作和电压骤降分别引入分流和串联补偿。 可以添加制动电阻,以平滑从分流到串联接口的切换瞬变,并消除GSC的过大功率。 为了实现平衡和不平衡故障条件的灵活控制解决方案,瞬态管理方案可以采用正序和负序控制器。 可以使用小信号线性模型分析串联补偿拓扑的系统动力学。 基于数学模型,可以考虑各种操作条件来调节控制器以平衡电压调节性能和瞬态稳定裕度。 该系统受益于组件数量少,保护结构简单,FRT性能得到改进,对电网进行了有效的补偿。

    Fault-tolerant wind energy conversion system
    8.
    发明授权
    Fault-tolerant wind energy conversion system 有权
    容错风能转换系统

    公开(公告)号:US09425726B2

    公开(公告)日:2016-08-23

    申请号:US14314484

    申请日:2014-06-25

    CPC classification number: H02P9/10 H02H7/067

    Abstract: This disclosure is directed to a fault-tolerant energy conversion system. A fault-tolerant doubly-fed induction generator (DFIG) for use with a wind energy conversion system (WECS) consistent with the present disclosure may allow for seamless operation during all kinds of grid faults. In one embodiment, a six-switch grid side converter (GSC) commonly used with such systems may be replaced with nine-switch converter circuitry. With three additional switches, the nine-switch converter can provide two independent three phase outputs. For example, one three-phase output may be coupled to the grid through interfacing inductors to realize normal GSC operation, while the other three-phase output may be coupled to neutral side of the stator windings to provide fault ride-through (FRT) capability to the DFIG. A control algorithm may be employed that both achieves seamless fault ride-through during any kind of grid faults and strictly satisfies grid codes requirements.

    Abstract translation: 本公开涉及容错能量转换系统。 与本公开一致的用于风能转换系统(WECS)的容错双馈感应发电机(DFIG)可允许在各种电网故障期间的无缝操作。 在一个实施例中,与这种系统通常使用的六开关电网侧转换器(GSC)可以用九开关转换器电路代替。 使用三个附加开关,九开关转换器可以提供两个独立的三相输出。 例如,一个三相输出可以通过接口电感器耦合到电网,以实现正常的GSC操作,而另一个三相输出可以耦合到定子绕组的中性侧,以提供故障穿越(FRT)能力 到DFIG。 可以采用在任何种类的电网故障中实现无缝故障穿越的严格满足电网规则要求的控制算法。

    Method for conversion of halophytic biomass to biogas via thalassic anaerobic digestion
    9.
    发明授权
    Method for conversion of halophytic biomass to biogas via thalassic anaerobic digestion 有权
    通过海水厌氧消化将盐生生物转化为沼气的方法

    公开(公告)号:US09422579B2

    公开(公告)日:2016-08-23

    申请号:US14314685

    申请日:2014-06-25

    CPC classification number: C12P5/023 C10L1/026 Y02E50/13 Y02E50/343

    Abstract: Described is a process for the conversion of halophytic plant biomass containing saline organic solids into biogas through anaerobic digestion. Operation of the process with saline (e.g., seawater) as liquid media under the method conditions taught leads to biological conversion of the organic matter into biogas. Additionally described is a method for pretreatment of the biomass under mild physicochemical conditions to increase the bioavailable fraction of the biomass for conversion.

    Abstract translation: 描述了通过厌氧消化将含有盐水有机固体的盐生植物生物质转化为沼气的方法。 在所教导的方法条件下用盐水(例如海水)作为液体介质的操作使得有机物质生物转化成生物气体。 另外描述了在温和的物理化学条件下预处理生物质的方法,以增加用于转化的生物质的生物可利用部分。

    Vacuum membrane distillation (VMD) using aspirator to generate vacuum pressure
    10.
    发明授权
    Vacuum membrane distillation (VMD) using aspirator to generate vacuum pressure 有权
    真空膜蒸馏(VMD)使用吸气器产生真空压力

    公开(公告)号:US09023211B2

    公开(公告)日:2015-05-05

    申请号:US13716662

    申请日:2012-12-17

    CPC classification number: B01D61/366 B01D61/364 B01D2311/04 B01D2313/243

    Abstract: A VMD system and method uses an aspirator to generate a vacuum pressure for drawing permeate from a membrane module. The aspirator generates the vacuum pressure by receiving and passing a circulating liquid and combines the permeate with the circulating liquid such that the permeate condensates in the circulating liquid. Using an aspirator (e.g., instead of a vacuum pump) allows a more efficient and cost-effective operation of the VMD system and method, particularly in a desalination application. A VMD system and method using an aspirator may be used in desalination and other applications including, without limitation, environmental cleanup (e.g., removal of volatile organic chemicals from water) and food and medical applications.

    Abstract translation: VMD系统和方法使用吸气器产生用于从膜组件吸取渗透物的真空压力。 抽吸器通过接收和通过循环液体产生真空压力,并将渗透物与循环液体结合,使得渗透物在循环液体中冷凝。 使用吸气器(例如代替真空泵)允许VMD系统和方法的更有效和成本有效的操作,特别是在脱盐应用中。 使用吸气器的VMD系统和方法可以用于脱盐和其它应用,包括但不限于环境清洁(例如,从水中除去挥发性有机化学物质)以及食品和医疗应用。

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