Abstract: The present invention relates to substantially pure piperidine derivative compounds of the formulae: ##STR1## wherein R.sub.1 is hydrogen or hydroxy;R.sub.2 is hydrogen;or R.sub.1 and R.sub.2 taken together form a second bond between the carbon atoms bearing R.sub.1 and R.sub.2 ;R.sub.3 is --COOH or --COOR.sub.4 ;R.sub.4 has 1 to 6 carbon atoms;A, B, and D are the substituents of their respective rings each of which may be different or the same and are hydrogen, halogens, alkyl, hydroxy, alkoxy, or other substituents.A process of preparing such piperidine derivative compounds in substantially pure form is also disclosed.

Abstract: A silicon on insulator substrate 8 provides islands of silicon 18 of uniform thickness by using a trench etch process and a silicon nitride layer 20 to provide a thickness control and polish stop for the silicon islands 18.

Abstract: A system for balancing power includes an internal combustion engine with at least two cylinders and a computer with a memory programmed to balance power output between the cylinders. Each of the cylinders has a fuel injector which injects fuel into the cylinder for a set period of time determined by a working pulse width signal received from the computer. The working pulse width signal is adjusted by a working balance factor which ranges from a first specified percentage to one-hundred percent before being transmitted to the fuel injector.

Abstract: The process of the invention provides for the reconstitution of the polymerase III* subassembly, Pol III*, of E. coli DNA polymerase III holoenzyme from substantially pure peptide subunits. In the first of two general schemes in which the subunits are added in a specified order, .gamma. and .tau. are premixed before addition of .delta. and .delta.'. In the second general scheme, .delta.' is first assembled onto .gamma. (or .tau.); then the excess .delta.' is removed before adding .tau. (or .gamma.), following which .delta. is added. Reconstituted Pol III* had the same subunit composition as purified natural Pol III*, as well as similar activity. Other smaller subassemblies of the polymerase III holoenzyme may also be reconstituted by the process of the invention.

Abstract: The present invention relates to substantially pure piperidine derivative compounds of the formulae: ##STR1## wherein R.sub.1 is hydrogen or hydroxy;R.sub.2 is hydrogen;or R.sub.2 and R.sub.2 taken together form a second bond between the carbon atoms bearing R.sub.1 and R.sub.2 ;R.sub.3 is --COOH or --COOR.sub.4 ;R.sub.4 has 1 to 6 carbon atoms;A, B, and D are the substituents of their respective rings each of which may be different or the same and are hydrogen, halogens, alkyl, hydroxy, alkoxy, or other substituents.A process of preparing such piperidine derivative compounds in substantially pure form is also disclosed.

Abstract: The present invention relates to substantially pure piperidine derivative compounds of the formulae: ##STR1## wherein R.sub.1 is hydrogen or hydroxy;R.sub.2 is hydrogen;or R.sub.1 and R.sub.2 taken together form a second bond between the carbon atoms bearing R.sub.1 and R.sub.2 ;R.sub.3 is --COOH or --COOR.sub.4 ;R.sub.4 has 1 to 6 carbon atoms;A, B, and D are the substituents of their respective rings each of which may be different or the same and are hydrogen, halogens, alkyl, hydroxy, alkoxy, or other substituents.A process of preparing such piperidine derivative compounds in substantially pure form is also disclosed.

Abstract: Particles having a controlled particle size distribution and morphology are made from inorganic hydrophilic materials by dispersing inorganic hydrophilic material in a dispersant to form a dispersion phase, and mixing the dispersion phase with a substantially water-immiscible suspending liquid, which is less polar than the dispersant, to form a suspension of dispersion phase droplets in the suspending liquid. The dispersion phase droplets are stabilized by a dispersion of an organic colloidal stabilizer which is added either to the suspending liquid before mixing or to the suspension of dispersion phase droplets after mixing. The organic stabilizer limits the coalescence of the dispersion phase droplets. The dispersant is removed to form solid inorganic particles having a controlled particle size distribution and morphology.

Abstract: Low temperature silicon-on-insulator wafer bonding using a silicide bond formation reaction. Dielectric isolation with silicon dioxide, diamond, silicon-nitride, and so forth yields buried resistors under trench isolated silicon islands. Buried dielectrics can be thermally susceptible films like diamond due to the low temperature of the bonding silicidation reaction. Bonding silicides also provide thermal dissipating layer between a buried diamond layer and a handle wafer for good overall thermal conductivity. Bonding silicides also act as diffusion barriers.

Abstract: The apparatus and method operate by first generating a set of amplitudes for a constant current pulse. Each amplitude in the set is associated with one conductor on the reference printed circuit board and represents the amplitude which generates a determined voltage rise in that one conductor that is within a set range of a desired voltage rise for that one conductor. Each determined voltage rise representing the difference between a first voltage drop reading and a subsequent voltage drop reading taken across each conductor while the constant current pulse is applied. Once the set of amplitudes is generated, the apparatus and method generate a set of test voltage rises.

Abstract: A method and apparatus for logging or identifying each page of a facsimile transmission or reception by a facsimile machine with a facsimile access controller is disclosed. The method involves several steps which include monitoring the transmission or reception of data by the facsimile machine for a resolution signal and end-of-line signals in the data, determining the number of lines which will be on a page based upon the resolution signal, counting the number of the end-of-line signals transmitted, detecting an end-of-page signal, and logging a transmission or reception of a page when the total count of the end-of-line signals indicates that a page has been transmitted or the end-of-page signal is detected. The apparatus includes a monitor coupled to the signal line from a facsimile machine for monitoring data on the signal line during facsimile transmissions or receptions. A converter is coupled to the monitor for converting the data from the signal line.

Abstract: An edge trimmer system in accordance with the present invention includes a conveyor system, a cutting assembly, and a pair of starter punches. The cutting assembly includes a pair of side trimmers each with a cutting device which trims one of the elongated edges of a raw strip of steel to produce a parent steel strip and two scrap steel strips.

Abstract: A superconductive fullerene and a process for making such superconductive fullerene are provided. The process involves contacting a quantity of fullerene with the vapor of an interhalogen compound such as ICl. The halogen doped fullerenes exhibited a transition temperature above 60 K.

Abstract: An integrated circuit structure containing dielectrically isolated islands having heat dissipation paths of enhanced thermal conductivity. A semiconductor structure comprises a first layer of crystalline material with a layer comprising polycrystalline diamond formed over the first layer. A layer of polycrystalline silicon is formed over the diamond containing layer and a layer of monocrystalline material is formed over the polycrystalline silicon.

Abstract: The present invention relates to a process for forming glass-ceramic tiles. Spent aluminum potliner containing carbonaceous material, fluorine, and glass forming materials is oxidized under conditions effective to combust the carbonaceous material and volatilize partially the fluorine in the glass forming materials. The oxidized glass forming materials are vitrified to form a glass melt. This glass melt is then formed into tiles containing fluorine.

Abstract: The present invention discloses a new species of gram-negative bacterium, designated "Pasteurella suis," isolated from piglets with diarrhea, a gene or gene fragment encoding a novel leukotoxin secreted from Pasteurella suis, recombinant DNA sequences and expression systems for directing expression of the gene, a method of using the gene or gene fragment as an immunogen in vaccine formulations and as reagents in diagnostic assays.

Abstract: In a switching inverter where switches are controlled so as to provide current through an inductor which is connected in series with other switches across a battery so as to power a capacitive load, such as an electroluminescent lamp, with higher voltage than the battery voltage, the other switches, which may be SCRs, provide a path for current which charges and discharges the lamp to provide the higher voltage as an alternating voltage across the load. These other switches are switched on in synchronism with pulses of current which are produced in the inductor by circuits providing capacitances at the triggering terminals of the other switches (control electrodes or gates in the case of SCRs). These circuits are connected to the inductor so that transients or spikes, occurring when the current through the conductor is switched, enable triggering current flow with respect to the capacitances. This triggering current flow automatically triggers the other switching devices.

Abstract: Silicon on diamond die 5 are separated by patterning the diamond layer 3 and sawing the silicon layer 4. The diamond layer 3 is patterned by known techniques including laser ablation or using a silicon dioxide mask to resist deposition of diamond material. Patterning may take place after formation of microelectronic devices in dies in the silicon layer, after a device water is bonded to a diamond layer but before formation of the devices, prior to joining the device wafer to the diamond layer.

Abstract: A transient expression system is disclosed that utilizes bacteriophage RNA polymerase in the presence of a DNA-based cytoplasmic virus to facilitate expression of a foreign gene in the cytoplasm of a eukaryotic cell.A method of expressing a foreign gene in the cytoplasm of a eukaryotic cell is also disclosed which comprises incorporating into the cytoplasm a DNA-based cytoplasmic virus, a suitable carrier comprising a gene for an RNA polymerase which gene is foreign to the carrier and to the cells, and a suitable carrier comprising a functional, cistron including a foreign gene flanked by a promotor sequence which is recognized by the RNA polymerase.

Abstract: An apparatus for supporting a ring piece being cut from a ring-shaped structure is disclosed. The ring support member or assembly includes a bar assembly having a convex arcuate surface adapted to be disposed against and aligned with an inner circumferential portion of the ring-shaped structure. In addition to the convex arcuate surface, the bar assembly has a pair of substantially parallel faces which are substantially perpendicular to the convex arcuate surface. A supporting stud extends substantially perpendicularly through the faces of the bar assembly. A first clamping assembly is attached to one end of the supporting stud to fix the bar assembly to the supporting stud. A second clamping assembly is attached to the other end of the supporting stud and is adapted to fix the bar assembly and the supporting stud to an object, such as a plate with elongated radially disposed slots.

Abstract: A single turn, asymmetric solenoidal coil for imaging the hand and wrist of a human subject. The asymmetric shape of the coil allows for uniform RF field energy to be distributed along the hand and wrist of the subject. The shape of the coil is maintained by a hollow, elongated member of dielectric material. A complementary pair of foils are attached to the outer surface of the hollow, dielectric member. The foils are separated by axial gaps and electrically coupled to each other by capacitors disposed along the length of each gap.