Water sample viral contamination detection system
    41.
    发明授权
    Water sample viral contamination detection system 失效
    水样病毒污染检测系统

    公开(公告)号:US5527667A

    公开(公告)日:1996-06-18

    申请号:US66865

    申请日:1993-05-25

    CPC classification number: C12Q1/34 C12Q1/54 G01N2333/924

    Abstract: Viral contamination in water samples is detected using a medium which includes both a substrate for .beta.-galactosidase and E. coli with elevated levels of intracellular .beta.-galactosidase. The substrate is chosen to undergo a detectable change (e.g., colorimetric, fluorometric, photometric, etc.) upon cleavage by .beta.-galactosidase. A water sample to be tested for viral contamination is added to the medium. If coliphages are present in the water sample, they will infect, multiply within, and subsequently lyse the E. coli host. Lysis of the E. coli will allow the release of the intracellular .beta.-galactosidase into the media, whereupon the enzyme will cleave the substrate for a detectable reaction. In one particular application, a colorimetric reagent that serves as a substrate for .beta.-galactosidase is dissolved or dispersed within an agar medium, and in another particular application, a colorimetric reagent that serves as a substrate for .beta.-galactosidase is dissolved or dispersed within a liquid medium. Color changes which result from lytic cell infection of the E. coli hosts are easily monitored by researchers or laboratory technicians. The presence of coliphages in a water sample is indicative of the presence of harmful human and animal enteric viruses in the water.

    Abstract translation: 使用包含β-半乳糖苷酶底物和具有升高的细胞内β-半乳糖苷酶水平的大肠杆菌的培养基检测水样品中的病毒污染物。 选择底物在通过β-半乳糖苷酶切割时经历可检测的变化(例如,比色,荧光测定,光度测定等)。 将待测试病毒污染的水样添加到培养基中。 如果水样中存在大肠杆菌噬菌体,则它们会感染,繁殖并随后溶解大肠杆菌宿主。 大肠杆菌的裂解将允许细胞内β-半乳糖苷酶释放到培养基中,于是该酶将切割底物以进行可检测的反应。 在一个具体应用中,用作β-半乳糖苷酶底物的比色试剂溶解或分散在琼脂培养基中,在另一个具体应用中,用作β-半乳糖苷酶底物的比色试剂溶解或分散在 液体介质。 研究人员或实验室技术人员很容易监测由大肠杆菌宿主的裂解细胞感染引起的颜色变化。 水样中大肠杆菌的存在表明在水中存在有害的人和动物肠道病毒。

    Active control of aircraft engine inlet noise using compact sound
sources and distributed error sensors
    42.
    发明授权
    Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors 失效
    使用紧凑型声源和分布式误差传感器主动控制飞机发动机进气噪声

    公开(公告)号:US5515444A

    公开(公告)日:1996-05-07

    申请号:US320153

    申请日:1994-10-07

    Abstract: An active noise control system using a compact sound source is effective to reduce aircraft engine duct noise. The fan noise from a turbofan engine is controlled using an adaptive filtered-x LMS algorithm. Single multi channel control systems are used to control the fan blade passage frequency (BPF) tone and the BPF tone and the first harmonic of the BPF tone for a plane wave excitation. A multi channel control system is used to control any spinning mode. The multi channel control system to control both fan tones and a high pressure compressor BPF tone simultaneously. In order to make active control of turbofan inlet noise a viable technology, a compact sound source is employed to generate the control field. This control field sound source consists of an array of identical thin, cylindrically curved panels with an inner radius of curvature corresponding to that of the engine inlet. These panels are flush mounted inside the inlet duct and sealed on all edges to prevent leakage around the panel and to minimize the aerodynamic losses created by the addition of the panels. Each panel is driven by one or more piezoelectric force transducers mounted on the surface of the panel. The response of the panel to excitation is maximized when it is driven at its resonance; therefore, the panel is designed such that its fundamental frequency is near the tone to be canceled, typically 2000-4000 Hz.

    Abstract translation: 使用紧凑声源的主动噪声控制系统有效地减少飞机发动机管道噪声。 来自涡扇发动机的风扇噪声使用自适应滤波x LMS算法进行控制。 单个多通道控制系统用于控制风扇叶片通过频率(BPF)音调和BPF音调以及用于平面波激励的BPF音调的一次谐波。 多通道控制系统用于控制任何旋转模式。 多通道控制系统同时控制风扇音调和高压压缩机BPF音调。 为了积极控制涡轮风扇入口噪声是一项可行的技术,采用紧凑型声源来产生控制领域。 该控制场声源由相同的薄的圆柱形曲面的阵列组成,其内径曲率对应于发动机入口的曲率半径。 这些面板齐平地安装在入口管道的内部,并密封在所有边缘上,以防止面板周围的泄漏,并最大限度地减少通过添加面板而产生的空气动力学损失。 每个面板由安装在面板表面上的一个或多个压电力传感器驱动。 当它的共振被驱动时,面板对激发的响应最大化; 因此,面板被设计成使得其基本频率接近待消除的音调,通常为2000-4000Hz。

    Techniques for prediction of popularity of media

    公开(公告)号:US10862953B2

    公开(公告)日:2020-12-08

    申请号:US15587814

    申请日:2017-05-05

    Applicant: WP Company LLC

    Abstract: An article of manufacture for predicting the popularity of media may include at least one processor readable storage medium and instructions stored on the at least one medium. The instructions may be configured to be readable from the at least one medium by at least one processor and may thereby cause the at least one processor to operate so as to determine a publication time associated with digital media, set a predetermined time threshold based on the publication time, analyze the digital media to determine at least one feature associated with the digital media, compile the determined at least one feature, predict a popularity associated with the digital media based on the compiled at least one feature, and output the predicted popularity. The at least one feature associated with the digital media may be determined before the predetermined time threshold.

    SYSTEM AND METHOD OF NON-INTRUSIVE ANEMOMETRY

    公开(公告)号:US20170356773A1

    公开(公告)日:2017-12-14

    申请号:US15617018

    申请日:2017-06-08

    CPC classification number: G01F1/667 G01P5/245

    Abstract: A system and method of non-intrusive anemometry. The system comprises an acoustic transmitter disposed at a boundary of fluid flow and first and second acoustic receivers adapted to receive transmissions from the acoustic transmitter. A processor is coupled to the acoustic receivers to determine the time of arrival of the transmission at the acoustic receivers. The acoustic transmitter and acoustic receivers are arranged such that the acoustic transmitter is upstream from the first acoustic receiver which is in turn upstream from the second acoustic transmitter.

    Complex situation analysis system using a plurality of brokers that control access to information sources
    48.
    发明授权
    Complex situation analysis system using a plurality of brokers that control access to information sources 有权
    复杂情况分析系统使用多个经纪人来控制对信息源的访问

    公开(公告)号:US09367805B2

    公开(公告)日:2016-06-14

    申请号:US14642308

    申请日:2015-03-09

    CPC classification number: G06N5/022 G06F17/00 G06N5/02 G06Q10/00 G06Q30/00

    Abstract: Systems, methods, and computer-readable media for generating a data set are provided. One method includes generating a data set based on input data using a plurality of brokers. The method further includes receiving a request from a user and determining whether the request can be fulfilled using data currently in the data set. When the request can be fulfilled using data currently in the data set, the data is accessed using broker(s) configured to provide access to data within the data set. When the request cannot be fulfilled using data currently in the data set, at least one new broker is spawned using existing broker(s) and additional data needed to fulfill the request is added to the data set using the new broker. The method further includes generating a response to the request using one or more of the plurality of brokers.

    Abstract translation: 提供了用于生成数据集的系统,方法和计算机可读介质。 一种方法包括使用多个经纪人基于输入数据生成数据集。 该方法还包括从用户接收请求,并使用数据集中的当前数据来确定请求是否可以被满足。 当使用当前在数据集中的数据可以满足请求时,使用被配置为提供对数据集内的数据的访问的代理访问数据。 当使用当前数据集中的数据不能满足请求时,使用现有代理产生至少一个新代理,并且使用新代理将满足请求所需的附加数据添加到数据集中。 所述方法还包括使用所述多个经纪人中的一个或多个来产生对所述请求的响应。

    COMPLEX SITUATION ANALYSIS SYSTEM
    49.
    发明申请
    COMPLEX SITUATION ANALYSIS SYSTEM 有权
    复杂情景分析系统

    公开(公告)号:US20150178621A1

    公开(公告)日:2015-06-25

    申请号:US14642308

    申请日:2015-03-09

    CPC classification number: G06N5/022 G06F17/00 G06N5/02 G06Q10/00 G06Q30/00

    Abstract: Systems, methods, and computer-readable media for generating a data set are provided. One method includes generating a data set based on input data using a plurality of brokers. The method further includes receiving a request from a user and determining whether the request can be fulfilled using data currently in the data set. When the request can be fulfilled using data currently in the data set, the data is accessed using broker(s) configured to provide access to data within the data set. When the request cannot be fulfilled using data currently in the data set, at least one new broker is spawned using existing broker(s) and additional data needed to fulfill the request is added to the data set using the new broker. The method further includes generating a response to the request using one or more of the plurality of brokers.

    Abstract translation: 提供了用于生成数据集的系统,方法和计算机可读介质。 一种方法包括使用多个经纪人基于输入数据生成数据集。 该方法还包括从用户接收请求,并使用数据集中的当前数据来确定请求是否可以被满足。 当使用当前在数据集中的数据可以满足请求时,使用被配置为提供对数据集内的数据的访问的代理访问数据。 当使用当前数据集中的数据不能满足请求时,使用现有代理产生至少一个新代理,并且使用新代理将满足请求所需的附加数据添加到数据集中。 所述方法还包括使用所述多个经纪人中的一个或多个来产生对所述请求的响应。

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