Abstract: A photodiode having optical resonators tuned different from one another and adjacent one another in a semiconductor body, whereby the resonators are in optical wave-coupling with one another.

Abstract: The removal of elemental oxygen with the aid of a reducing agent from a liquid coolant which circulates in one or more circulations and from which salts are to be removed simultaneously in an ion exchanger mixed-bed filter (5) can be effected without substantial additional expense in terms of apparatus by at least partially loading the anion or cation exchanger resin present in the mixed bed filter (5) with the said reducing agent. The reducing agent is added via a metering means (6) upstream of the mixed-bed filter (5) in the secondary circulation (2).

Abstract: A pin for holding and/or cooling ceramic coating in hot reaction chambers is composed of a pin shaft and a pin cap which are connected with one another by a diffusion welding forming therebetween a homogeneous material connection possessing a high strength and high heat conductive properties.

Abstract: An excitation circuit for a TE high-energy laser system, includes at least one high-speed, high-voltage switch, activatable for energizing a pulse-generating network to generate high-voltage pulses at a pair of laser electrodes; the pulse generating network having first and second strip-line capacitors associated with the high-voltage switch and the laser chamber and with appertaining equivalent inductances of the excitation circuit formed from self-inductance of the high-voltage switch, the laser chamber, leads of the system and the stripline capacitors has at least a third stripline capacitor included in the pulse-generating network in addition to the first and second stripline capacitors, a series connection of the high-voltage switch and one of the equivalent inductances being connected in parallel with the first stripline capacitor and with a series-parallel circuit formed of the second stripline capacitor and a parallel connection made up of the third stripline capacitor in parallel with an impedance as

Abstract: Laser of the TE type, including a gas-tight housing defining a laser chamber having a gas space, at least two laser electrodes disposed parallel to the optical axis of the laser within the housing, the electrodes being disposed mutually opposite and at a given distance from each other, excitation of the laser being provided by an arc-free capacitor discharge being as homogeneous as possible in the gas space between the electrodes, a pre-ionization device disposed within the housing, current leads and a current return disposed in the housing, each of the electrodes being connected to one of the current leads and current return, a device disposed in the laser chamber for conducting laser gas therethrough, a pulse-forming network having a capacitor contact surface and being connected to the current leads and current returns, the laser electrodes being in the form of at least two subelectrodes facing toward the pulse-forming network and subelectrodes facing away from the pulse-forming network, an electrode bridge

Abstract: Sheetform conductor type capacitor for energy storage in combination with a high-energy laser of the TE type, the laser having an optical axis, a laser chamber with at least two laser electrodes having a gas space therebetween, the laser electrodes being spaced apart opposite each other and extended parallel to the optical axis, excitation taking place by an arc-free capacitor discharge in the gas space being as homogeneous as possible, and pre-ionization devices associated with the laser electrodes, a pulse forming network, connected to the laser electrodes, coatings of the sheetform conductor type capacitor connected to the laser electrodes, electrodes defining a fast-high-voltage contact-break distance, the contact-break electrodes being connected to the laser electrodes, dielectric layers disposed between the coating of the sheetform conductor type capacitor in a direction substantially normal to a given stacking direction thereto parallel to the optical axis of the laser, the at least two laser electrode

Abstract: A shake resaw machine for converting a generally rectilinear wooden blank into a pair of oppositely tapered shingles, each having a tip and a butt end, is comprised of a support table hingedly disposed for cooperative engagement with a saw for lateral movement with respect to a longitudinal feed axis along which the wooden blank progresses during a resaw sequence through the saw, including a first tip-cutting stage, an intermediate diagonal-cutting stage, and a second tip-cutting stage, a table control member for moving the support table at a predetermined rate in a lateral path relative to the feed axis during the resaw sequence, first and second blank guide members having variable lateral stiffness, one of each disposed on either side of the feed axis forwardly proximate a saw blade location thereon, for cooperatively routing the blank along a variable, predetermined resaw path, and first and second guide control members for regulating, respectively, the lateral stiffness of the first and second guide membe

Abstract: In a process for obtaining in a continuous operation a specimen gas from a flowing gas current of a pressurized crude gas for analysis purposes, a branch current is withdrawn from the main current in an anisokinetic manner whereupon the branch current of the crude gas is passed through a cooling device and a specimen is then withdrawn from the branch current likewise in an anisokinetic manner and the specimen is subjected to pressure release and filtering prior to passing it into a gas analysis apparatus.

Abstract: New DIR-compounds of the formula ##STR1## are useful in photographic materials and processes.

Abstract: Nicotinamide-adenine dinucleotide or the phosphate thereof, each in the reduced as well as the oxidized forms, are stabilized against activity losses in storage by the addition of hydrolytically decomposed, optionally cross-linked collagen.

Abstract: A process for the production of substituted furans of the general formula ##STR1## wherein R is a member of the group consisting of alkoxy radicals having from 1-6 C-atoms, a substituted aryloxy radical, an unsubstituted aryloxy radical and an alkyl radical, R.sub.1 is a alkyl or aryl radical with 1-6 C-atoms, preferably methyl, R.sub.2 and/or R.sub.3 is an alkyl radical with 1-6 C-atoms or hydrogen by reacting a .beta.-dicarbonyl compound with an .alpha.-chlorocarbonyl compound in the presence of a compound capable of combining with the hydrochloric acid formed, at temperatures between 30.degree. and 100.degree. C., the reaction being carried out at pH values between 2 and 7, preferably between 3.5 and 6, with the addition of equimolar amounts of an alkaline earth carbonate.

Abstract: An apparatus for cooling electrical devices by means of a flowing medium, comprising auxiliary electrodes arranged to both sides of an electrical device to be cooled and to both sides of further devices of an active recirculation cooling system. The electrical device to be cooled is at a first potential and the further devices at a second potential. The auxiliary electrodes are at least partially located in branch conduits branching-off main conduit means of the recirculation cooling system.

Abstract: Enzyme-kinetic determination of the concentration of an enzyme substrate which is acted on during an enzymatic reaction is carried out by adding at least one competitive inhibitor to an enzymatic reaction medium to bring the ratio of the substrate concentration C.sub.3 to the apparent Michaelis constant K'.sub.M to 0.2:1 or less, homogenizing the medium and determining the rate change of the enzymatic reaction at certain intervals of time.

Abstract: Photographic process for the production of density profiles or transparency profiles in photographic layers comprising the steps: determination of the characteristic curve of the emulsion layer in the usual manner, graphic determination of the brightness distribution required for the subsequent exposure on the same photographic material, producing the brightness distribution determined in stage 2 by anamorphotic optical means and exposing the photographic material making use of this brightness distribution.