Abstract: This invention is directed to a method of making an olefin product from an oxygenate feedstock and a method of protecting catalytic activity of a silicoaluminophosphate molecular sieve. The methods comprise providing a silicoaluminophosphate molecular sieve having catalytic sites within the molecular sieve; shielding the catalytic sites to protect from loss of catalytic activity; and contacting the protected sieve in its activated state with an oxygenate feedstock under conditions effective to produce an olefin product before undesirable loss of catalytic activity. Undesirable loss in catalytic activity occurs when activated molecular sieve contacting the oxygenate feedstock has a methanol uptake index of at least 0.15.

Abstract: A method and apparatus for the transmission and reception of scrambled data is disclosed. In some embodiments, the method and apparatus includes transmitting a scrambled data stream to a decoder, sending the scrambled data stream to a portable security module inserted in the decoder, descrambling the scrambled data stream, encrypting a descrambled data stream, and using the encrypted data stream to the decoder, decrypting the encrypted data stream, and using the decrypted data stream.

Abstract: A diaphragm-support disc for a polishing machine of the type in which a work piece to be polished is sandwiched between a radial front face of a diaphragm and a polishing surface or cloth. The diaphragm is extended across and wrapped around the peripheral edge of a radial front face of the disc, and a radial rear face of the diaphragm is subjected to pressure from a fluid. The diaphragm-support disc includes a main annular part that projects from the radial front face of the disc and is located in a peripheral region of the radial front face of the disc a predetermined distance from the peripheral edge of the radial front face of the disc. The main annular part can act on the work piece through the diaphragm so as to press the work piece onto the polishing surface or cloth by an axial displacement of the disc with respect to the polishing surface or cloth.

Abstract: A variant of a LAV virus, designated LAVMAL and capable of causing AIDS. The cDNA and antigens of the LAVMAL virus can be used for the diagnosis of AIDS and pre-AIDS.

Abstract: A method and apparatus for determining characteristics of tissue is disclosed. The method comprises supplying optical energy to a tissue and detecting at a plurality of locations consequent energy scattered by the tissue. Analysis of the scattered energy as taught herein provides information concerning the properties of the tissue, specifically information related to the fat and lean content and thickness of the tissue. The apparatus comprises a light source adapted to deliver optical energy to a tissue. A plurality of detectors can be mounted at different positions relative to the source to detect energy scattered by the tissue. A signal processor as taught herein can determine characteristics of the tissue from the signals from the detectors and locations of the detectors, specifically information related to the fat and lean content and thickness of the tissue.

Abstract: Mineral wool capable of dissolving in a physiological medium, which mineral wool comprises the constituents below in the following percentages by weight: SiO2 39-55%, preferably 40-52% Al2O3 16-27%, ″ 16-25% CaO  3-35%, ″ 10-25% MgO  0-15%, ″  0-10% Na2O  0-15%, ″  6-12% K2O  0-15%, ″  3-12% R2O (Na2O + K2O) 10-17%, ″ 12-17% P2O5 0-3%, ″ 0-2% Fe2O3  0-15%, B2O3 0-8%, ″ 0-4% TiO2 0-3%, and in that MgO is between 0 and 5%, especially between 0 and 2%, when R2O≦13.0%.

Abstract: Compound of formula (I): 1

Abstract: An interactive digital television system and method of grouping data objects in which data objects displayed on an interactive digital television system may be grouped using the input keys of the control unit of the integrated digital television system by displaying the data objects on the display of the interactive digital television system and highlighting one of the displayed data objects, using at least one first input key of the input keys of the control unit to cause the display to move the highlighting to successive displayed data objects and using at least one second input key of the input keys of the control unit to selectively assign the currently highlighted data object to a respective group wherein, when a data object is assigned to a respective group, an image associated with the respective group is displayed with the data object.

Abstract: In accordance with the present invention, optical channels to be demultiplexed are supplied to first and second optical fibers via an optical splitter. Low loss interference filters, for example, coupled to the first and second optical fibers, select respective groups of channels. Each group of channels is next demultiplexed with sub-demultiplexers into individual channels, each of which is then sensed with a corresponding photodetector. Although the optical splitter introduces an optical power loss at the input to the demultiplexer, the interference filters and sub-demultiplexers create little additional loss. As a result, the total power loss associated with the present invention is significantly less than that obtained with a conventional n channel demultiplexer based on a 1×n splitter. Accordingly, large numbers of channels, e.g., in excess of forty can be readily demultiplexed and detected.

Abstract: The present invention is a method for programming SSI cells or an array of said cells. The method achieves very fast programming while consuming only a very small amount of power, which paves the way for new applications such as battery-operated systems, page-mode programming for very high data throughput. The method also allows for the bitline voltage to be increased internally on the chip in order to circumvent the efficiency decrease associated with supply voltage scaling. By exploring the SSI mechanism in the subthreshold regime, an optimum value for the CG voltage is found for which the gate current is no longer maximized, but the energy consumed from the power supply is minimized and the injection efficiency during programming is maximized. The programming of a memory cell in this regime, where the gate current is a very steep function of the CG voltage, is, however, still achieved in a few microseconds while consuming only a very small cell current in the range of nanoamperes.

Abstract: Process for converting a hydrocarbon fraction that is obtained from atmospheric distillation of a crude, comprising a vacuum distillation stage (a) of said feedstock that makes it possible to obtain a vacuum distillate and a vacuum residue; a stage b) for treating at least a portion of the vacuum distillate in the presence of hydrogen; a stage c) for treating at least a portion of the vacuum residue in the presence of hydrogen, whereby said stages b) and c) are each carried out in at least one separate triphase reactor that contains at least one ebullated-bed hydrotreatment catalyst that operates with an upward flow of liquid and gas; a stage d) in which at least a portion of the product that is obtained in stage b) is sent to an atmospheric distillation zone from which a light fraction and a heavier liquid fraction are recovered; a stage e) in which at least a portion of the product that is obtained in stage c) is sent to an atmospheric distillation zone from which a light fraction and a heavier liquid fract

Abstract: In accordance with the present invention, optical channels to be demultiplexed are supplied to first and second fibers via an optical splitter. Low loss interference filters, for example, coupled to the first and second optical fibers, select respective groups of channels. Each group of channels is next demultiplexed with sub-demultiplexers into individual channels, each of which is then sensed with a corresponding photodetector. Although the optical splitter introduces an optical power loss at the input to the demutiplexer, the interference filters and sub-demultiplexer create little additional loss. As a result, the total power loss associated with the present invention is significantly less than that obtained with a conventional n channel demultiplexer based on a 1×n splitter. Accordingly, large numbers of channels, e. g., in excess of forty can be readily demultiplexed and detected.

Abstract: The invention concerns a piston (20) mounted axially movable along a guide bearing (59) pertaining to a hub (5) rim (52); a ring (21) being inserted between the hub (5) and a transverse wall, the hub (5) has a sleeve (50) penetrating inside the ring (21).

Abstract: A terminal for generating an electromagnetic field adapted to cooperating with at least one transponder when the latter enters its field and including an oscillating circuit adapted to receiving a high-frequency A.C. excitation voltage, circuitry for regulating the signal phase in the oscillating circuit with respect to a reference value, circuitry for determining an instantaneous information relative to the magnetic coupling between the transponder and the terminal, and circuitry for adapting the electromagnetic field power according to at least said present information.

Abstract: The present invention provides a network system for storage of medical records. The records are stored in a database on a server. Each record includes two main parts, namely a collection of data elements containing information of medical nature for the certain individual, and a plurality of pointers providing addresses or remote locations where reside other medical data for that particular individual. Each record also includes a data element indicative of the basic type of medical data found at the location pointed to by a particular pointer. This arrangement permits a client workstation to download the record along with the set of pointers which link the client to the remotely stored files. The identification of the basic type of information that each pointer points to allows the physician to select the ones of interest and thus avoid downloading massive amounts of data where only part of that data is needed at that time.

Abstract: An active implantable medical device, in particular a pacemaker, defibrillator and/or cardiovertor, able to identify and eliminate the artifacts of the detection of cardiac events. This device detects spontaneous events in a ventricular and/or atrial cavity cardiac; measures the intervals separating the successive detected events collected by the detection circuits; analyzes the cardiac rate of heartbeat, according to the measured values of intervals; and eliminates double detections of the same cardiac event, namely when an event detected is followed of an artifact likely to be also detected. The elimination of double detections is performed by seeking to identify an alternation of short intervals (t1, t3, t5, . . . ) and long intervals (t2, t4, t6, . . . ) in the successive measured intervals (t1, t2, t3, t4, t5, t6, . . . ) separating a series of consecutive events (R1, R′1, R2, R′2, R3, R′3, . . .

Abstract: Process for converting a hydrocarbon fraction that is obtained from atmospheric distillation of a crude, comprising a vacuum distillation stage (a) of said feedstock that makes it possible to obtain a vacuum distillate and a vacuum residue; a stage b) for treating at least a portion of the vacuum distillate in the presence of hydrogen in at least one reactor that contains at least one fixed-bed hydrotreatment catalyst under conditions that make it possible to obtain a liquid effluent with a low sulfur content; a stage c) for treating at least a portion of the vacuum residue in the presence of hydrogen in at least one triphase reactor that contains at least one ebullated-bed hydrotreatment catalyst; a stage d) in which at least a portion of the product that is obtained in stage b) is sent to an atmospheric distillation zone from which a light fraction and a heavier liquid fraction are recovered; a stage e) in which at least a portion of the product that is obtained in stage c) is sent to an atmospheric distill

Abstract: An adjustable steering column for use with a personal watercraft. The adjustable steering column comprises a steering column base fixed to the watercraft, an upper steering column connected to the steering column base, the upper steering column being movable between a first position and second position, and an adjustment mechanism for moving the upper steering column between the first and second positions. Preferably, the adjustment mechanism includes a screw with a knob on one end and a ball joint on the other end. The adjustment screw is manually operable to pivot the upper steering column with respect to the steering column base.