Abstract:
The invention relates to a concentrated and buffered liquid composition for amplifying nucleic acids, comprising at least one dNTP, at least one enzyme required for the amplification, at least one oligonucleotide primer, and at least one fluorescent nucleotide probe, in the presence of a polyol and/or of polyvinylpyrrolidone (PVP).
Abstract:
A CCD imaging system is provided, including a short focal length lens for accepting light from the scene to be imaged and a charge storage medium having a charge storage substrate that is curved in a selected nonplanar focal surface profile and located a selected distance from the lens with the focal surface facing the lens, the focal surface profile and the lens-to-substrate distance selected such that the light accepted by the lens is in focus at the position of the substrate. There is provided a support substrate on which the nonplanar charge storage substrate is supported to maintain the selected surface profile of the charge storage substrate. An array of pixels defined in the charge storage substrate by pixel interconnections is supported on the front side of the substrate, such that exposure of the substrate to light from the scene through the lens produces charge packets in the pixels, with the pixel interconnection providing selective electronic temporal control of transfer of charge packets from one pixel to another in the substrate. The invention provides a technique for suppressing dark current charge packet generation in the substrate pixels. An output circuit converts the charge packets in the pixels to an electrical pixel signal of output pixel values based on the light from the scene. A plurality of pixel values together form an image frame, the output pixel values being produced at a rate corresponding to the image frame rate, R.
Abstract:
The wafer thickness of a CCD front illuminated silicon wafer is reduced to about ten to twenty microns, the Al substrate is removed and a 5-35 nanometer silicon oxide layer is produced on the thinned back of the silicon wafer followed by implanting boron ions within the back surface to a depth up to about ten nanometers. Furnace annealing the wafer is now carried out, and the Al substrate is redeposited to enable the formation of gate contacts.
Abstract:
An imaging system is provided for imaging a scene to produce a sequence of image frames of the scene at a frame rate, R, of at least about 25 image frames per second. The system includes an optical input port, a charge-coupled imaging device, an analog signal processor, and an analog-to-digital processor (A/D). The A/D digitizes the amplified pixel signal to produce a digital image signal formatted as a sequence of image frames each of a plurality of digital pixel values and having a dynamic range of digital pixel values represented by a number of digital bits, B, where B is greater than 8. A digital image processor is provided for processing digital pixel values in the sequence of image frames to produce an output image frame sequence at the frame rate, R, representative of the imaged scene, with a latency of no more than about 1/R and a dynamic range of image frame pixel values represented by a number of digital bits, D, where D is less than B. The output image frame sequence is characterized by noise-limited resolution of at least a minimum number, N.sub.M, of line pairs per millimeter, referred to the charge-coupled imaging device pixel array, in an imaged scene as a function of illuminance of the input light impinging the charge-coupled imaging device pixels.
Abstract:
A target for vidicons and image intensifier tubes include a potential barrier less than about 1500 A from an input signal sensing surface. The targets also include various passivation means for stabilizing the energy level configuration along the input signal sensing surface by substantially fixing the valence or conduction band along that surface relative to the Fermi level.
Abstract:
A method for sequencing loads in an automated load-distribution system having k sources with k≥2; at least one destination; k FIFO-type source buffer devices, each receiving loads from one of the k sources; a collector collecting the loads from the k source buffer devices and transporting them to the at least one destination. The collector includes k successive nodes each configured to collect the loads from one of the source buffer devices. The control system processes customer orders listing loads for a given destination and being each associated with a sequential order number of destination. The control system: builds a collection list containing n loads to be collected and reducing a disorder of the n loads relative to a rising order of the sequential order numbers of destination; and controls the collector and the source buffer devices to collect loads compliant with the collection list.
Abstract:
A method for managing a buffer storage and load sequencing system, receiving non-sequenced loads, providing a sequence of loads, and including a buffer storage unit (having entrance levels, at least one recirculation level, and an entrance elevator facing entrances and an exit elevator facing exits of the levels. A management unit iteratively manages the entrance elevator by, at each iteration (even if there are loads to be recirculated in the system): selecting a load at exit from an entrance conveyor or at exit from the recirculation level; if the selection of one of the entrance levels is completed, generating a task for the entrance elevator of transferring the selected load to the entrance of the selected level; if not, selecting a level of loads to be recirculated and assigning the load(s) on this level a “load(s) to be recirculated” status without generating a task of transfer for the entrance elevator.
Abstract:
A method for managing a buffer storage and load sequencing system. The system receives non-sequenced loads and provides at least one sequence of loads, and includes a buffer storage unit having entrance levels, at least one recirculation level, an entrance elevator facing entrances and an exit elevator facing exits of the levels. A management unit iteratively manages the entrance elevator. At each iteration the entrance elevator: has a “waiting for recirculation” status for a load to be recirculated in the system; holds this elevator until the load to be recirculated has been transferred to the recirculation level, else selects a load at exit from an entrance conveyor or at exit from the recirculation level; if the selection of the entrance level is completed, generates a task, for the entrance elevator, of transferring the selected load to the selected level; if not assigns this load the “awaiting recirculation” status.
Abstract:
A method of sequencing loads in an automated distribution system having sources, at least one destination, a collector having successive nodes, and a control system to process customer orders. The method includes, for an analyzed node, injection including, to decide whether a load C having a sequential order number of destination for a given destination can be injected into the collector: creating, among the loads to be collected by at least one node downstream to the analyzed node, a list LI1 of loads having an order number of destination lower than the given order number of destination and a list LI2 of loads that are interposed between a load of the list LI1 and the collector; determining whether “the list LI1 is empty” and/or “the list LI1 is not empty and the list LI2 is empty”; if one of the two conditions is verified, then injection of the load C.
Abstract:
A system for conveying loads without sequencing, between storage units and preparation stations. The system includes upper collectors and lower collectors of opposite directions, rectilinear, parallel and positioned on upper and lower horizontal planes respectively; and for at least one first storage unit/preparation station couple, a first set of conveyors composed of two storage unit upper exit and upper entry conveyors and two storage unit lower exit and lower entry conveyors to connect the storage unit to the collectors and two preparation station upper exit and upper entry conveyors and two preparation station lower exit and entry conveyors to connect the preparation station to the collectors.