Device for fast vibration of tubes containing samples

    公开(公告)号:ZA200500934B

    公开(公告)日:2006-10-25

    申请号:ZA200500934

    申请日:2003-07-16

    Abstract: Apparatus for the rapid vibration of sample container tubes, e.g. containing biological samples, comprising a support plate (22) for the sample tubes and concentric bearings (28,30) for the plate mounting in a centering crown (26), which is on an elastic suspension (29) at the frame (10), where each bearing has two roller bearings within each other, is new. Apparatus for the rapid vibration of sample container tubes, e.g. containing biological samples, comprises a support plate (22) for the sample tubes and concentric bearings (28,30) for the plate mounting in a centering crown (26), which is on an elastic suspension (29) at the frame (10), where each bearing has two roller bearings, within each other and a third eccentric ball bearing (18) is at the mouthpiece of the drive shaft (20) from the electromotor (12), which has an axial movement within its bearing.

    Device for guiding a shaft in an oscillating movement

    公开(公告)号:AU2005263847A1

    公开(公告)日:2006-01-26

    申请号:AU2005263847

    申请日:2005-06-22

    Abstract: A device for guiding a shaft in an oscillating movement about a center of rotation situated on the axis of the shaft comprises a ball-and-socket bearing and a ball bearing mounted one inside the other between the shaft and a fixed support. The ball-and-socket bearing comprises a ball-and-socket joint with an outer convex surface in a portion of a sphere forming the inner race of the bearing, and two rings of balls that are arranged between the ball-and-socket joint and two superposed outer races of the bearing and that are guided in semicylindrical annular slots or grooves of the races.

    PROCEDIMIENTO Y DISPOSITIVO DE CULTIVO CELULAR CON MULTIPLES APLICACIONES.

    公开(公告)号:ES2228517T3

    公开(公告)日:2005-04-16

    申请号:ES00927346

    申请日:2000-05-16

    Abstract: Procedimiento de cultivo celular con múltiples aplicaciones, en particular para el mantenimiento, la proliferación, la amplificación o la diferenciación de células en un recinto (10) cerrado, que consiste en introducir células en este recinto, en alimentar con caudales de gases de ventilación, de medio nutritivo y de factores de crecimiento y en recoger las células cultivadas, caracterizado porque consiste igualmente: - en disponer de varias fuentes (28) de componentes o de medios nutritivos diferentes y de varias fuentes (34) de factores de crecimiento diferentes, - en determinar composiciones y caudales de mezclas de los diferentes componentes o medios nutritivos y composiciones y caudales de mezclas de los diferentes factores de crecimiento, lo que corresponde a una aplicación prevista de las aplicaciones citadas anteriormente, - después, durante el transcurso de dicha aplicación, en modificar en intervalos regulares o no, las composiciones y/o los caudales de las mezclas de componenteso de medios nutritivos y las mezclas de factores de crecimiento que alimentan el recinto (10), pudiendo realizarse estas modificaciones independientemente las unas de las otras.

    79.
    发明专利
    未知

    公开(公告)号:NO20033308D0

    公开(公告)日:2003-07-22

    申请号:NO20033308

    申请日:2003-07-22

    Abstract: A measurement scale independent of temperature is determined in the calculating window from the ratio of differences in flow through the two filters. The gas concentration can be calculated from this scale by weighting the ratio using the mean flow in the calculating window or as a function of the difference between a preset temperature and the ground temperatures during the calculating window Optical gas detection system by observation at a distance of an area using a measurement filter with a transmission band comprising a specific absorption ray for the gas being sought and a reference filter with a transmission band corresponding to that of the measurement filter but not including the specific absorption ray for the gas. The process involves detecting the presence of the gas by determining the difference in flow through the gas (22) and coming from points at different temperatures in a calculation window, and of the ratio of the flow differences seen through the measurement filter and through the reference filter. The scale is equal to ( eta . phi p)/K, where eta is the ratio, phi the mean flow in the calculating window, p a parameter depending on the measuring and reference filters and K a normalization parameter equal to phi p for a preset temperature in the calculating window, e.g. 20 deg C. The values of the derivative with respect to the temperature of the spectral luminescence of a black body at a given mean temperature are calculated for difference ground temperatures to deduce the derivative with respect to the temperature of a ratio for the same mean temperature in the absence of gas. The values are recorded and the measured ratios weighted as a function of the difference between the ground temperatures and the preset mean temperature. For the detection of several gases, a filter assembly (F1, F2, F3) is used, with the transmission bands determined relative to each other as a function of the absorption rays of the gases (G1, G2, G3). Thus, a filter (F2) can be used as a reference filter for a gas (G1) and as a measuring filter for another gas (G2,G3), or vice versa, connecting the filters in pairs, each pair detecting one or more gases. An identification matrix is formed where the rows correspond to the pairs of filters and the columns to the gases to be detected. The matrix is formed by calibrating the various filters and is used to detect the presence and concentration of the gases. A series of filters with stepped transmission bands are used.

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