Abstract: An electrostatographic printer for forming an image onto a web comprises at least one toner image-producing electrostatographic station having a drum onto which a toner image can be formed, a transport for conveying a web past the image-producing station, apparatus for controlling the speed and tension of the web while it is running past the image-producing station, and transfer apparatus for transferring the toner image on the drum onto the web. The printer is characterized by a control arrangement for switching between a printing mode wherein a printing web moves in synchronism with the peripheral speed of the drum and a refurbishment mode wherein a refurbishment web moves at a faster speed relative to the peripheral speed of the drum and in contact therewith, to cause refurbishment of the drum surface.

Abstract: A press die set includes a hollow cylindrical guide bush mounted on a punch holder, a cylindrical retainer received within the guide bush, and a columnar guide post vertically mounted on a die holder and received within the retainer. First right angle grooves are formed on the outer surface of the guide post parallel to a longitudinal axis of the guide post. First planar surfaces are formed on an outer surface of the guide post parallel to the longitudinal axis of the guide post and perpendicular to a radius of the guide post. Second right angle grooves are formed on the inner surface of the guide bush parallel to a longitudinal axis of the guide bush. Second planar surfaces are formed on the inner surface of the guide bush parallel to the longitudinal axis of the guide bush and perpendicular to a radius of the guide bush. Cross roller bearings are positioned between the first and second right angle grooves, and plain roller bearings are positioned between the first and second planar surfaces.

Abstract: Apparatus for delivering drugs to the lungs from an ultrasonic nebulizer by inspiration using a ventilator includes a flow system in which the nebulizer is connected in parallel with the series conduit between the ventilator delivery outlet and the ventilator discharge valve and exhaust outlet. One-way valves in parallel flow conduits to the nebulizer provide for bypassing the nebulizer except when the ventilator is in the inspiration phase of its operation, thereby eliminating an important cause of loss of drugs to the ventilator outlet during the expiration phase. The nebulizer, which can also be used for administration of drugs by inhalation (without a ventilator) has a flow regulator which provides for delivery of the drug from the nebulizer only during part of inspiration (or inhalation in a mouth breathing use) and for delivery of gas (air or oxygen) during the remaining part of inspiration (inhalation).

Abstract: A condom package has a tactile means of identifying the orientation of the condom within the package. The tactile means is the shape or texture of the package. In another embodiment, the tactile means of identifying orientation is on the condom itself.

Abstract: The present invention relates to a method of ordering DNA fragments in which binary overlap information, obtained by determining whether pairs of fragments hybridize to each other, is used to build a "spanning path" across a parent DNA molecule by successively attaching cloned fragments which overlap. The relative position of the many other, non-path fragments is not essential information, but can be determined. Means for eliminating false positives and false negatives is provided. The overlap relationships between fragments may be depicted as an interval graph.

Abstract: A sulfur-vulcanizable rubber composition of improved hysteresis, comprising ilica as reinforcing filler as well as a diene polymer functionalized with a functionalizing agent having the general formula (Y).sub.m --R.sup. --Si(OR.sup.2).sub.3-n --R.sup.3 n and suitable to be used for the manufacture of tires of reduced resistance to rolling.The functionalized diene polymers are prepared by addition to the living diene polymer under suitable mixing conditions of an amount of functionalizing agent such that the molar ratio of functionalizing agent to the number of active sites is equal to or greater than 1.

Abstract: A rolling-member worm-drive (10) comprises a spindle and a nut element (12) surrounding the spindle, where the spindle and the nut element (12) between them establish a helical rolling-member screw path, where in addition this rolling-member screw path is completed by an axial rolling-member return path, contained in the nut member, to a closed rolling-member circulation path in which an endless row of rolling-members travels, where in addition two rolling-member diverting elements (26) are arranged on the nut element (12) for transfer of the rolling-members between the rolling-member screw path and the rolling-member return path and between the rolling-member return path and the rolling-member screw path, and where at least one of the rolling-member diverting elements (26) is held on the nut member (12) by means of a securing element (36).

Abstract: The present invention provides a dye donor element for use according to thermal dye transfer methods comprising a support having thereon a dye layer comprising a binder and a yellow dye of the class of N-alkyl-N-para-aminoaryl-substituted dicyanovinylaniline dyes. Images obtained with such a donor element in a thermal dye diffusion transfer process are less susceptible to catalytic fading and have thus an improved light fastness.

Abstract: The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process using a photographic material comprising on a support a silver halide emulsion layer and a layer containing physical development nuclei comprising the steps of:image-wise exposing said photographic material;developing a thus obtained image-wise exposed photographic material by guiding said image-wise exposed photographic material through an alkaline processing liquid comprising a hydrophobizing agent, in 15s or less andsubsequently guiding a thus obtained developed photographic material through a stabilizing liquid;characterized in that said stabilizing liquid comprises a compound having a mercapto-group having a pK.sub.a of 4.5 or less.

Abstract: A technique for efficiently joining multiple large tables in a database system with a processor using a small main memory. The technique utilizes a join index and minimizes the number of Input/Output operations while maximizing the use of the small main memory through a buffer allocation process. The technique partitions available main memory into buffers and assigns conditions to the buffers to ensure that each buffer will receive a substantially equal amount of data in the join result. The technique then processes each input table separately based on the assigned conditions and sequentially reads and processes each input table. The output is vertically fragmented with one fragment for each input table which further allows the individual processing of each input table. Also described is a method for creating a join index if one is not present.

Abstract: A thermal sublimation printer comprises means for counting at periodic observation times the number (N.sub.h) of activated heating elements; means for measuring at periodic observation times the temperature (T.sub.d) of the drum and the temperature (T.sub.h) of the heatsink; means for digitising the measured temperature of the drum and the measured temperature of the heatsink; means for transferring the number of activated heating elements and the digitised temperature values T.sub.d and T.sub.h ; a device for estimating the temperature (T.sub.e) of the heating elements based on the values of N.sub.h, T.sub.d and T.sub.h ; memory means for storing the estimate of the temperature of the heating elements; the printer operating to adjust the applied energy as a function of the estimate of the temperature of the heating elements and of the required temperature of the heating elements.

Abstract: An exhaust gas cleaner having a heat-resistant, porous foam-type filter as a carrier, the filter being constituted by two portions consisting of a portion having a relatively low density and a high-density, thin layer portion formed on one side of the low density portion, the low-density portion supporting a base metal catalyst consisting essentially of (a) at least one of alkali metal elements, and (b) one or more elements selected from the group consisting of transition elements (excluding platinum-group elements) and Sn, and the high-density, thin layer portion supporting a platinum-group element catalyst. The base metal catalyst may further contain at least one of rare earth earth elements. The exhaust gas cleaning method is conducted by using this cleaner with its low-density portion on the exhaust gas inlet or outlet side.

Abstract: A low-cost and facile method of purifying fullerenes to obtain a preparation enriched in a fullerene of selected molecular weight using activated carbon involves adding a fullarena mixture to the top end of a column comprising activated carbon, passing a solvent in which the selected molecular weight fullerene is soluble through the column, and recovering a fraction enriched in the selected molecular weight fullerene from the bottom end of the column. In addition to activated carbon, the column may further comprise silica gel, diatomaceous earth, or other materials which aid in column packing and eluent flow. The invention also provides for preparation of gram quantities of pure C.sub.60 and C.sub.70 fullerenes after a single column pass.

Abstract: In the embodiments described in the specification pollutants in the exhaust gas of a multi-cylinder internal combustion engine of a motor vehicle having an exhaust-gas purification device containing a catalyst in the exhaust line are reduced by controlling The air/fuel ratio supplied to the cylinders of the internal combustion engine in such a way that at least one of the engine cylinders is operated with a lean air/fuel ratio and the remaining cylinders are operated with a rich air/fuel ratio while a lambda value of approximately one is maintained in the overall exhaust flow from all the cylinders. In addition to rapid heating of the catalyst in the exhaust-gas purification device and compensation for a relatively low storage capacity of the catalyst, this arrangement also reduces the quantity of untreated exhaust upstream of the catalyst.

Abstract: A novel pyrimidine derivative, N-(2-amino-4,6-dichloropyrimidine-5-yl) formamide for use, e.g., in the production of antiviral nucleotide derivatives, can be made by a process involving cyclyzing an aminomalonic ester with guanidine or its salt in the presence of a base to produce 2,5-diamino-4,6-dihydroxypyrimidine or its salt, chlorinating this product with a chlorinating agent in the presence of an amide to produce 4,6-dichloropyrimidine, and reacting the 4,6-dichlororpyrimidine with an aqueous solution of a carboxylic acid to produce the N-(2-amino-4,6-dichloropyrimidine-5-yl) formamide. Novel also are 4,6-dichloropyrimidine, 4,6-dichloro-N'-(dimethylamino-methylene) pyrimidine-2,5-diamine, 4,6-dichloro-N'-(piperidine-1-ylmethylene) pyrimidine-2,5-diamine, and a process for making 2,5-diamino-4,6-dichloropyrimidine.

Abstract: A method of manufacturing a semiconductor device for power supply use. A void is formed on a mating face of a pair of metallic molds. Moreover, an island of a lead frame is arranged in the void under the condition that the island is spaced from a surface of the void. A thermosetting resin is injected into the void so that the island and a semiconductor element assembled onto one face of the island are sealed by resin. At this time, a clearance between the other face of the island and one face of the metallic mold opposed to the other face of the island is set to be 2.0 to 0.3 mm and is smaller than a clearance between one face of the island and the other face of the metallic mold opposed to one face of the island. One face of the metallic mold is subjected to satin finish on which the maximum surface roughness H.sub.max is in a range from 3 to 10 .mu.m.

Abstract: A method is disclosed for diagnosing the cause of bad performance of a printing plate obtained using the silver salt diffusion transfer process. According to the method a problem table is used to relate a problem to one or more possible causes. A test table is used to identify tests to verify a possible cause of the problem and a toolkit is provided including equipment needed for carrying out tests. Using the method a technician can identify possible causes for a problem, identify the tests capable of verifying one or more causes and perform the tests to confirm the cause of the problem. In the event a cause is not confirmed the technician can investigate other possible causes.

Abstract: The present invention relates to a process for the preparation of a coagulant for water purification, in particular purification of sewage water, for pulp and paper manufacture, for dewatering organic matter, for concentrating minerals, and containing a metal salt and silicate, whereby a solid zeolite is dissolved in a solution of trivalent metal salt in a molar ratio Me.sup.3+ :Si of >2:1, preferably 2-500:1, as well as a coagulant.