摘要:
A method in a computing system which includes a cursor (781) and an icon displayed on a monitor (14), the icon being used to reference a data file (849), and which includes, a first software application (846) which is able to utilize data in the data file (849), a second software application (101) which is able to utilize data in the file (849) and input means for allowing a user (843) to position the cursor (781) and to perform other actions which are detectable by the computing system, the method comprising the following steps: (a) at the direction of a user (843) using the input means, placing the cursor (781) over the icon; (b) upon the user (843) performing a first set of operations using the input means, starting the first software application (846), the first software application (846) performing operations on data within the data file (849); and, (c) upon the user (843) performing a second set of operations using the input means, staring the second software application (101), the first software application (846) performing operations on data within the data file (849).
摘要:
An ultrasonic probe (400) including one or more piezoelectric ceramic elements (501) mounted on an acoustically damping support body (504). Desired acoustic signals are transmitted and received through a front portion (511) of the probe (400) while unwanted acoustic signals are dampened by the support body (504) at the rear portion of the probe (400). Each element (501) has a respective rear face and a respective piezoelectric ceramic layer (502) integral therewith to provide efficient acoustic coupling between the element (501) and the acoustically damping support body (504). The respective piezoelectric layer (502) of each element (501) includes shallow grooves (505) disposed on the respective rear face of each piezoelectric element (501). A groove volume fraction of the piezoelectric layer (502) is selected to control acoustic impedance of the piezoelectric layer (502) so as to provide a desired acoustic impedance match between a bulk acoustic impedance of the element (501) and an acoustic impedance of the acoustically damping support body (504). Electrodes (507) extend into and contact the grooves (505), imposing electrical boundary requirements that support a desired electrical field distribution within the element.
摘要:
An ultrasonic probe having one or more piezoelectric ceramic elements, each having a respective bulk acoustic impedance. Each element has a respective front face and a respective piezoelectric ceramic layer integral therewith to provide efficient acoustic coupling between the probe and a medium under examination by the probe. The respective piezoelectric layer of each element includes shallow grooves disposed on the respective front face of each piezoelectric element. A groove volume fraction of the piezoelectric layer is selected to control acoustic impedance of the piezoelectric layer so as to provide a desired acoustic impedance match between the bulk acoustic impedance of the element and an acoustic impedance of a medium under examination by the probe. Electrodes extend into and contact the grooves, imposing electrical boundary requirements that support a desired electrical field distribution within the element.
摘要:
An ultrasonic probe including one or more piezoelectric ceramic elements mounted on an acoustically damping support body. Desired acoustic signals are transmitted and received through a front portion of the probe while unwanted acoustic signals are dampened by the support body at the rear portion of the probe. The present invention generates and efficiently focusses a main lobe of a beam of the acoustic signals. Furthermore, the invention provides for apodization of the acoustic beam to reduce extraneous acoustic signals corresponding to side lobes of the acoustic beam. Each element has a respective rear face and a respective first piezoelectric ceramic layer (502; 1002; 1402; 1502; 1902; 2002; 2102; 2202) integral therewith to provide efficient acoustic coupling between the element and the acoustically damping support body. The respective first piezoelectric layer of each element includes shallow grooves (505; 1005; 1905; 2005; 2105; 2205) disposed on the respective rear face of each piezoelectric element. A groove volume fraction of the piezoelectric layer is selected to control acoustic impedance of the first piezoelectric layer. Apodization of the beam is effected by varying the groove volume fraction of the first piezoelectric layer along an acoustic aperture of each element in accordance with a suitable apodization function. In accordance with a focussing function, a groove volume fraction of a respective second piezoelectric layer (1412) integral with each element is varied along the acoustic aperture, thereby effecting focussing of the acoustic beam. Electrodes extend into and contact the grooves, imposing electrical boundary requirements that support a desired electrical field distribution within the element.
摘要:
Un système de microscopie est conçu pour réaliser un grossissement de plus de 12000 X avec une haute résolution simultanée de plus de 0,3 micron et sur une profondeur de champ de 30 microns. Le système de microscopie (10) comprend: un microscope classique (12) pourvu d'une pluralité de lentilles d'objectif (32) qui produisent le grossissement initial avec des limites acceptables de haute résolution et de profondeur de champ; un corps de projection (40) relié au microscope (12) de manière particulière afin d'accroître ce grossissement tout en continuant à maintenir la haute résolution et la profondeur de champ; et une source lumineuse (14) pour éclairer la plaque porte-échantillons (39) du dessous, la source lumineuse (14) étant située à une certaine distance de la plaque (39) et reliée par un câble de fibres optiques (16) à une lentille de champ (35) placée au-dessous de la plaque porte-échantillons (39). Le corps de projection (40) projette une image sur un dispositif récepteur (52) dont la distance à partir de sa lentille de projection (50) peut être modifiée afin de varier le grossissement produit par la psojection.
摘要:
A continuous packaging sleever assembly for wrapping packaging sleeves onto and about groupings of product containers in a packaging operation has a frame structure (11) having a generally horizontal working surface area; conveyance means (13) to move the product containers across said working surface; a horizontally movable flight bar assembly (15,45) having a plurality of flight bars connected to continuous means (19) and having a continuous conveyance path through the packaging operation, said flight bar assembly being constructed and arranged to be selectively movable in a generally perpendicular direction to said product conveyance means (13) and to separate product containers into predetermined groups (26); a packaging sleeve placement structure (27) in synchronisation with said flight bar assembly (15) and for depositing packaging sleeves (21) between and above said flight bars of said flight bar assembly and above the product groups (26); and means (29) to wrap and close said packaging sleeves above the product groups. The means to wrap and close include a side compression closing flight structure (29) having segmented chain support rails (74), a continuous lugged chain structure (78), and pressure control means (73) connected to said segmented chain support rails (74) and being operative on said packaging sleeve.
摘要:
Un distributeur de film comprend un corps pourvu de parois inférieure (2), avant (5), arrière (4) et latérales, ainsi que d'un couvercle monté pivotant (6). La paroi avant (5) comporte une ouverture sensiblement allongée (8). Des éléments de coupe (15) de film ou de feuille enveloppante (15) sont prévus au niveau de l'ouverture ou adjacente à celle-ci. Un évidement de support (20) allongé et transversal est prévu dans le corps, à l'arrière de l'ouverture permettant d'y loger un rouleau allongé de film ou de feuille enveloppante. Un volet comprimant (25), monté pivotant, est contenu à l'intérieur du corps et est placé au-dessus de l'évidement de support, de manière espacée par rapport à celui-ci. Un rouleau de film ou de feuille enveloppante est destiné à être logé à l'intérieur de l'évidement de support (20), ledit volet presseur (25) produisant une pression dirigée vers le bas sur le rouleau.