Abstract: A multi-functional compact clipper for fishing includes a rotatable base plate and an upper and lower holding plates that form a space therebetween. The rotatable base plate has a pair of upper and lower grooves at one end, an axial end at another end, a stop disposed a at middle rear side and a needle at an inside wall of a hollow formed on a front side. The rotatable base plate connects elastically with a threaded device and pivotally with the holding plates. The threading device provides a threading wire and a slit connecting with the grooves of the rotatable base plate. The upper holding plate is provided with a cutter set magnetically in a hole of a projected end of the upper holding plate. The rotatable base plate is pivotally folding into and drawn out of the space between the holding plates. The stop limits the rotation of the rotatable base plate by engagement with cavities formed on the upper and lower holding plates.

Abstract: An apparatus and method comprises an acquisition of a first series of projected two-dimensional mask images of the object obtained for different positions of a camera around the object; an acquisition of a second series of opacified projected two-dimensional images of the object obtained at the same positions of the camera around the object; a phase of elaboration of a third series of subtracted projected two-dimensional images respectively obtained from the first and second series of images; a reconstruction of a three-dimensional subtracted image from the third series of images and from an analytical algorithm of image reconstruction; a reconstruction of a three-dimensional mask image from the first series of images and from an analytical algorithm of image reconstruction; a phase of identification of defects in the three-dimensional mask image; and elimination of the corresponding voxels in the three-dimensional subtracted image.

Abstract: A double resonance voltage converter and method of operating such a converter having: a switching circuit with a first switch and a second switch; a double resonance resonant circuit having a series resonant circuit and a parallel resonant circuit; a rectifying and filtering circuit, and a control circuit for controlling the switching circuit having two state arrangements. A first arrangement controls the conducting states of the switching circuit and a second arrangement controls the start of the first arrangement. The converter may be used to obtain very high voltages, on the order of 100 kilovolts and more, for providing power to an X-ray tube in a radiological imaging apparatus.

Abstract: An element is dissolved displayed having a periodic structure, such as a stent, images of which are acquired by means of a radiography machine of the type comprising an X-ray source and an image detector and an image display placed opposite the source.

Abstract: A table cover comprises a rectangular sheet material such as a cloth, a synthetic resin material etc., and multiple napkin pieces which is of the same material and is formed in a body with the cover, respectively. The napkin pieces project beyond side edges of the sheet material and are cut off at both side portions by a fixed length from the sheet material. The napkin pieces also are attached by optional sets of fastening members or buttons at projected edges and on their opposite portions inward of the side edges of the sheet material. The napkins can be maintained cleanly on the table surface by scraping up spilled foods or spilled liquids thereon into the napkin portions on one's lap and prevent soiling clothing or carpet, during a meal. The napkin pieces can also be held back to fix them within the sheet side portions, when not in use. The table cover then can be used in the usual manner on a dining table.

Abstract: Method and apparatus for a radiographic image of an object obtained by a radiography apparatus containing an X-ray emitter, in which an anti-scatter grid placed between the object and a radiographic image receiver is displaced, on rectilinear translation in its plane, when acquiring the images, between a starting position and an arrival position, according to a time displacement law of reference, at a greater rate of displacement in proximity to a starting position and to the arrival position. A measurement of the energy received in the form of X-radiation by the receiver is used to modify the rate of displacement of the grid at every instant.

Abstract: A radiographic apparatus comprises an image receiver and a source for delivering radiation towards the image receiver. Adjacent to the image receiver is a breast support with a body and a plate. The plate can be moved with respect to the body of the breast support, along the direction of propagation of the radiation. The movement of the plate of the breast support varies the position of the patient's breast in the path of the radiation thereby varying the magnification factor of the image.

Abstract: A device in the form of a quarter-turn device for attaching together structural element. The device has an attachment element passing through a hole in a first structural element, such as a cover, with a shank, a head and a part profiled so as to engage with a retaining element arranged on the structural element. The head, which may be circular, with a curved upper face, has a diametrical slot having a longitudinal profile with a bottom curved in a circular arc, the center of which is located at some distance above the head. The longitudinal ends of the slot open out from the upper face of the head at two points offset radially inwards with respect to the periphery or circumference of the head.

Abstract: The invention concerns a method of three-dimensional image reconstruction from a set of acquired two-dimensional images. A subsampling is taken of the set of acquired two-dimensional images so as to reduce their resolution. A first analytical algorithm of three-dimensional image reconstruction from low-resolution (LR) acquired two-dimensional images is applied in order to obtain a low-resolution three-dimensional image. A reconstruction support is determined by selecting in the low-resolution three-dimensional image a set of particular voxels. One then applies a second analytical algorithm of three-dimensional image reconstruction from acquired two-dimensional images and considering only the voxels of the reconstruction support in order to obtain the high-resolution (HR) three-dimensional image.

Abstract: An X-ray emission device having an X-ray tube and a protective enclosure filled with an electrically insulating liquid in which the X-ray tube is placed. The device includes at least one chamber connected to the protective enclosure that traps and purges gas bubbles contained or dissolved in the liquid filling the protective enclosure.

Abstract: A coating element for an electrical junction or circuit that reduces surface electric field densities. The coating element comprises a layer of plastic material laden within or in which there is dispersed conductive particles. The coating element surrounds the junction or circuit such that an inner layer or surface of the element is in contact with the outer layer or surface of the junction or circuit. The plastic material may be an elastomer, a polymer, a polyurethane or a silicone. The conductive particles may be a metal powder of aluminum or stainless steel or graphite. The resistivity of the coating element is between about 1 ohm-cm to about 100 kilohm-cm.

Abstract: The present invention relates to an apparatus for metal casting and can be used in producing castings with directional and single crystal structure. The apparatus comprises a vacuum chamber inside which there is disposed an induction melting furnace, a mold preheating furnace with a ceramic mold, and a water-cooled tank being shaped as a truncated cone having a bottom portion and an upper portion which is opened towards a heating zone. The heating zone and the cooling zone are separated by a baffle articulating in a horizontal plane and consisting of segments or sectors. The apparatus allows the production of high quality castings having the directional and single crystal structure including the large sized castings by both the method of radiation cooling and the method of liquid metal cooling.

Abstract: The method comprises a histogram of the radiographed image, i.e., a real histogram, a mathematical model of the image chain and the object obtained by calibration. The mathematical model of the image chain and the object and a set of parameters of acquisition, of the detector, of the positioner and of the object are used to determine two values of gray level, gray min and gray max, delimiting a useful zone and the part below gray min and the part above gray max are suppressed in the real histogram, i.e., a limited histogram. A set of rules is applied to the limited histogram in order to determine the level of brightness (WL) and the contrast (WW) is obtained from the brightness and possibly from one or more parameters selected by the user or fixed a priori.

Abstract: Method and apparatus for examination of a breast, in which a contrast medium is injected in the breast to be examined, an X-ray beam is emitted in the direction of the breast; a plurality of digital images of the X-ray beam is taken after it has crossed the breast, and a representative image of the contrast produced in the tissues of the breast is calculated from the digital images.

Abstract: Method of automatic registration of two- and three-dimensional angiography images by comparison of a two-dimensional digital subtracted angiography image with data on a three-dimensional image reconstructed from rotational angiography sequences, in which a field of distortions in the image is estimated, a conical projection matrix is estimated and an approximation is made of a rigid transformation in space equal to the difference between an initial registration based on the field of distortions and on the conical projection matrix and a perfect registration.

Abstract: The delay time control entails a static term and a corrective term and a current sampling time, the control calculated at the preceding sampling time is applied and the control intended to be applied at the following sampling time is determined. The determination of the following control is made from the working point of the generator, estimated at the following time.

Abstract: Device for taking radiologic images, of the type comprising a means of emission of an X-ray beam and a means of reception of the X-ray beam after it has passed through an organ to be studied. The means of emission and the means of reception are supported by an arm pivoting about at least one shaft supported by a frame. The device comprises a means for detecting the angle of swivel of the arm, a means for entering data relative to the organ to be studied, a processing means capable of determining the type of image that will be taken as a function of the angle of swivel and of the said data relative to the organ, and a means for displaying on the image the type of image determined by the said processing means.

Abstract: A Fe—B—R type permanent magnetic, consisting of: 13-19 atomic % R, where R consists essentially of a mixture of rare earth elements Nd and/or Pr, and Ce, where Ce is between 0.2 and 5.0 wt. % of R; 4-20 atomic % B, and the balance comprising Fe. In a preferred aspect, R comprises 15-16 atomic % B; of which Ce is approximately 0.5% and the remaining rare earths Pr and Nd are in a ratio of 3:1. A process of producing a Fe—B—R permanent magnet as described above, and a Fe—B—R magnetic material made by such process.

Abstract: A method of calibration for reconstructing three-dimensional models from images obtained by a tomography apparatus comprising a radiation detector and an X-ray source which can move with respect to the detector. In the method a set of markers are placed in the field of the X-rays and the positions of the projections of the markers onto the images acquired are processed so as to deduce from this the position of the source at the time of acquisitions, the markers being carried by one and the same support. The markers are fixed with respect to the support and the positions of the projections of the markers onto the images acquired are processed so as to deduce from this the position of the markers in space.

Abstract: A process for reconstructing a tridimensional image of an object moving with a substantially cyclic motion, for example the vessels of the human heart, in which, for an acquisition duration extending over several cycles of the movement of the object, an acquisitio of a plurality of initial digital radiographic images is performed using a snapshot apparatus rotating around the object. Initial images having the same temporal occurrence in the course of each cycle are selected respectively in successive cycles so as to form a group of images which is associated with this same temporal occurrence. Several different groups of initial images corresponding respectively to several different temporal occurrences are formed. An intermediate tridimensional representation of the object is reconstructed on the basis of each group of initial images and of an iterative image reconstruction algorithm.