Yttrium tantalate phosphors
    1.
    发明授权
    Yttrium tantalate phosphors 失效
    钽酸钇荧光粉

    公开(公告)号:US4024069A

    公开(公告)日:1977-05-17

    申请号:US596283

    申请日:1975-07-16

    Applicant: Simon Larach

    Inventor: Simon Larach

    CPC classification number: C09K11/7766

    Abstract: Phosphors consisting essentially of a host material having a face-centered cubic crystal structure and the empirical formula YTa.sub.3 O.sub.9 or Y.sub.3 TaO.sub.7 wherein 0.01 to 0.10 mol percent of the Y is replaced with at least one trivalent activator cation. A portion of the Y up to 20 mol percent may also be replaced with at least one trivalent nonactivator cation, such as Gd, La and Lu. The phosphors may be excited with ultraviolet light, x-rays or cathode rays to emit in the visible and ultraviolet regions of the spectrum depending on the excitation and the activator cations present.

    Abstract translation: 基本上由具有面心立方晶体结构的主体材料和经验式YTa3O9或Y3TaO7组成的荧光体,其中0.01至0.10mol%的Y被至少一个三价活化剂阳离子代替。 Y至多20摩尔%的一部分也可以被至少一种三价非活化剂阳离子如Gd,La和Lu代替。 荧光体可以用紫外光,X射线或阴极射线激发,以在光谱的可见光和紫外区域中发射,这取决于激发和存在的激活剂阳离子。

    Echocardiographic apparatus for myocardial disease diagnosis by A-wave
quantification
    3.
    发明授权
    Echocardiographic apparatus for myocardial disease diagnosis by A-wave quantification 失效
    超声心动图仪通过A波量化诊断心肌疾病

    公开(公告)号:US4233989A

    公开(公告)日:1980-11-18

    申请号:US973456

    申请日:1978-12-26

    CPC classification number: A61B8/02 G01S7/52026

    Abstract: A-wave quantification indicator automatically measures the difference in amplitude between the peak of the E-wave portion of an ultrasonically derived M-wave CRT display and the peak of the A wave portion of the M-wave. This difference in amplitude, which distinguishes myocardial-disease and hyperkinetic syndrome subjects from normal subjects, is alphanumerically displayed in quantitative and/or qualitative terms.

    Abstract translation: A波量化指示器自动测量超声波导出的M波CRT显示器的E波部分的峰值与M波的A波部分的峰值之间的幅度差。 这种将心肌疾病和超动力综合征受试者与正常受试者区分开来的幅度差异以数字和/或定性方式显示。

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