Analytical process in which materials to be analyzed are directly and
indirectly heated and dried by microwave radiation
    91.
    发明授权
    Analytical process in which materials to be analyzed are directly and indirectly heated and dried by microwave radiation 失效
    要分析的材料通过微波辐射直接和间接加热和干燥的分析过程

    公开(公告)号:US4681996A

    公开(公告)日:1987-07-21

    申请号:US811540

    申请日:1985-12-19

    摘要: An apparatus for controllably heating material, such as a material to be analyzed for volatiles or non-volatiles contents, directly and indirectly by microwave radiation, includes a chamber, in which the material to be heated is placed, a source of microwave radiation, for radiating onto materials in the chamber and for controllably heating such a material, and a support for such material, which support includes a matrix of a material which transmits microwave radiation, and also includes particulate material therein which absorbs microwave radiation. The absorptive material is one that has a Curie temperature, above which it is transmissive of microwave radiation, so as thereby to prevent excessive heating of the support and the supported material which is to be heated. The matrix material is stable and form-retaining at the Curie temperature of the dispersed material. Preferably the support matrix will be of a silicone rubber or of a polyfluoroalkylene polymer, such as polytetrafluoroethylene, and the dispersed material will be a ferrite, garnet or a mixture thereof. The apparatus may include a turntable for one or more supports, an automatic electronic balance, computerized controls and readout means. Also within the invention are the described support, and processes for heating and drying, in a preferred embodiment of which processes a particulate diluent or dispersant for the sample being treated is employed to prevent overheating of the sample.

    摘要翻译: 用于通过微波辐射直接和间接地可控地加热材料(例如要分析的挥发物或非挥发物含量的材料)的装置包括其中放置有待加热材料的室,微波辐射源,用于 辐射到室中的材料上并且用于可控地加热这种材料,以及用于这种材料的支撑件,该支撑件包括透射微波辐射的材料的基体,并且还包括吸收微波辐射的颗粒材料。 吸收材料是具有居里温度的吸收材料,其上面是微波辐射的透射,从而防止支撑体和受热材料的过度加热。 基质材料在分散材料的居里温度下是稳定的并保持形状。 优选地,载体基质为硅橡胶或多氟亚烷基聚合物如聚四氟乙烯,分散的材料为铁氧体,石榴石或其混合物。 该装置可以包括用于一个或多个支撑件的转台,自动电子天平,计算机控制和读出装置。 在本发明中还包括所述的加热和干燥的支撑物和加热和干燥方法,在其优选实施方案中,采用待处理样品的颗粒状稀释剂或分散剂来防止样品过热。

    Apparatus and process for automatically determining fat contents of foods
    92.
    发明授权
    Apparatus and process for automatically determining fat contents of foods 失效
    自动确定食品中脂肪含量的装置和方法

    公开(公告)号:US4566312A

    公开(公告)日:1986-01-28

    申请号:US606352

    申请日:1984-05-02

    CPC分类号: G01N9/36 G01N33/06 G01N5/045

    摘要: Apparatuses and processes are described for the automatic determinations of fat contents of foods, such as dairy products, e.g., milk, wherein automatic density and solids content determining apparatuses are employed, together with a computer, to determine the fat contents of food samples being tested. The density determining apparatus is preferably one which is electromagnetically excited to vibrate at its natural resonant frequency, so that from the change in such frequency, compared to a control, the mass of the sample may be determined. The means for measuring the solids content is preferably an automatic volatility computer in which electromagnetic radiation (microwave energy) is employed to drive off the volatile material (usually mostly water) in the sample, which is automatically weighed before and after such volatilization. Preferably, a microcomputer in the automatic volatility computer is employed to compute fat content from electronic feeds to it from the density and the solids content determining apparatuses.

    摘要翻译: 描述了用于自动确定食品的脂肪含量的装置和方法,所述食品例如是乳制品,例如牛奶,其中使用自动密度和固体含量确定装置以及计算机来确定正在测试的食品样品的脂肪含量 。 密度测定装置优选是电磁激发以便以其固有共振频率振动的装置,从而与这种频率的变化相比,可以确定样品的质量。 用于测量固体含量的装置优选是自动挥发性计算机,其中使用电磁辐射(微波能量)来驱除样品中的挥发性物质(通常主要是水),其在这种挥发之前和之后被自动称重。 优选地,使用自动挥发性计算机中的微型计算机从密度和固体含量确定装置计算来自电子馈送的脂肪含量。

    Method and apparatus for improving weighing accuracy
    93.
    发明授权
    Method and apparatus for improving weighing accuracy 失效
    提高称重精度的方法和装置

    公开(公告)号:US4291775A

    公开(公告)日:1981-09-29

    申请号:US90286

    申请日:1979-11-01

    IPC分类号: G01G21/28

    CPC分类号: G01G21/28

    摘要: A method and apparatus is described for improving the weighing accuracy of sensitive automatic balances when weighing heated substances. This is accomplished by substantially eliminating or reducing convection currents from interfering with and fluctuating the weight being sensed. An air barrier shield is used to cover the balance plate without contacting or touching the balance, thereby eliminating convection air currents from interfering with the movement of the balance. The air barrier is permeable to microwave radiation and capable of absorbing moisture and other volitilized substances while being substantially impermeable to air currents. Glass fiber matting or padding is particularly useful for forming the air barrier enclosure. The invention is particularly applicable to analytical determinations which require microwave heating of the substance to remove volatiles and the requirement to accurately and sensitively weigh the substances while still hot using an electrical balance.

    摘要翻译: 描述了一种用于在称重加热物质时提高敏感自动平衡的称重精度的方法和装置。 这通过基本上消除或减少对流来干扰和感测到的重量而实现。 空气屏障用于覆盖平衡板而不接触或接触天平,从而消除对流气流干扰天平的运动。 空气屏障对微波辐射是可渗透的,并且能够吸收水分和其它挥发物质,同时基本上不透气。 玻璃纤维垫或填料对于形成空气阻隔罩特别有用。 本发明特别适用于需要微波加热物质以除去挥发物的分析测定,以及在使用电气平衡仍然热的情况下准确地和敏感地称量物​​质的要求。

    Computer-aided detection of regions of interest in tomographic breast imagery
    95.
    发明授权
    Computer-aided detection of regions of interest in tomographic breast imagery 有权
    计算机辅助检测断层摄影乳腺成像感兴趣区域

    公开(公告)号:US08634622B2

    公开(公告)日:2014-01-21

    申请号:US12579898

    申请日:2009-10-15

    IPC分类号: A61B6/03

    摘要: Disclosed are methods, and associated systems comprising processors, input devices and output devices, of detecting regions of interest in a tomographic breast image. The methods may comprise: acquiring tomographic breast image data; deriving a plurality of synthetic sub-volumes from the tomographic breast image data; wherein each subvolume is defined by parallel planar top and bottom surfaces; wherein planar top and bottom surfaces of successive subvolumes are parallel to each other; and wherein a top planar surface of a sub-volume is offset from a top planar surface of a prior sub-volume, such that successive sub-volumes overlap; for each sub-volume, deriving a two-dimensional image; for each two-dimensional image, identifying regions of interest therein; deriving at least one region of interest of potential clinical interest from a plurality of identified regions of interest; and outputting information associated with at least one derived region of interest of potential clinical interest.

    摘要翻译: 公开了包括处理器,输入设备和输出设备的方法和相关系统,其检测断层图像乳房图像中的感兴趣区域。 所述方法可以包括:获取断层摄影乳房图像数据; 从断层图像乳房图像数据中导出多个合成子体积; 其中每个子体积由平行的平面顶部和底部表面限定; 其中连续子体积的平面顶表面和底表面彼此平行; 并且其中子体积的顶部平坦表面偏离先前子体积的顶部平坦表面,使得连续的子体积重叠; 对于每个子体积,导出二维图像; 对于每个二维图像,识别其中感兴趣的区域; 从多个确定的感兴趣区域中产生潜在临床兴趣的至少一个感兴趣区域; 并输出与潜在临床感兴趣的至少一个感兴趣的衍生区域相关联的信息。

    Computer-aided detection and display of colonic residue in medical imagery of the colon
    97.
    发明授权
    Computer-aided detection and display of colonic residue in medical imagery of the colon 有权
    计算机辅助检测和结肠残留物在结肠医学影像中的显示

    公开(公告)号:US08131036B2

    公开(公告)日:2012-03-06

    申请号:US12179787

    申请日:2008-07-25

    IPC分类号: G06K9/00

    CPC分类号: G06K9/00 G06K2209/053

    摘要: Methods and systems are presented that improve a radiologist's ability to identify polyps by automatically and more accurately detecting and displaying colonic residue such as tagged or untagged stool or colonic fluid in medical images of the colorectal region. A virtual colonography imaging system obtains medical imagery of the colon. Improved computer-aided detection (CAD) algorithms identify colonic residue in the imagery by calculating feature vectors of and using statistical classification methods to classify regions of colonic residue to distinguish them from false positives.

    摘要翻译: 提出了通过自动更准确地检测和显示结肠直肠区域的医学图像中的标记或未标记的粪便或结肠液的结肠残留物来改善放射科医师识别息肉的能力的方法和系统。 虚拟结肠成像系统获得结肠的医学图像。 改进的计算机辅助检测(CAD)算法通过计算特征向量并使用统计分类方法对结肠残留区域进行分类,从而将其与假阳性区分开来,从而识别图像中的结肠残留。