Abstract: A document reading device of a charge storage type comprising a plurality of light receiving elements arranged on a substrate in a main scanning direction of a document and a plurality of wiring conductor lines for electrically connecting between the light receiving elements and drive elements, wherein the plurality of conductor lines are made different in their width in accordance with their wiring position to thereby make line-to-line capacitances of the conductor lines substantially the same, thus making the same capacitances appearing between the light receiving elements and drive elements for all bits.

Abstract: In an ionization chamber detector of the type in which a plurality of flat anode and cathode electrodes are alternately arranged in a predetermined gaseous medium, this invention provides a method of producing an ionization chamber detector which is characterized in that a plurality of ditches having a width a little bit greater than the thickness of the electrodes are formed on the inner surfaces of a pair of insulators disposed in the spaced-apart relation for supporting and fixing the anode and cathode electrodes, an adhesive is applied in advance temporarily in a rectangular form to both or one surface of each electrode at those positions which are set back by a distance corresponding to the thickness of the electrodes from both edge portions, another adhesive having a low viscosity is charged from the end portions of the ditches into the gaps between the electrodes and the ditch walls after the electrodes are inserted into the ditches, and the tentative adhesive and the adhesive having a low viscosity ar

Abstract: A multi-cell radiation detector constructed such that a first group of electrodes to which is applied high voltage and a second group of electrodes to which are connected signal leads are alternately arranged inside a vessel containing ionizable gas enclosed therein. The first group electrodes are provided with terminals to which are connected leads for introducing high voltage from the exterior, while the second group electrodes are provided with terminals to which are connected leads for leading out signal outputs to the exterior. These leads and terminals are all disposed at positions offset from traveling path of the radiation so as to reduce the volume of the space under the weak electric field behind the electrode section.

Abstract: A main distribution board is designed to be mounted on a main distribution frame ("MDF") of a switching office for interconnecting inside and outside cables. A plug-in type connector is connected to the end of the inside cable. A first terminal block has U-groove clip terminals which are connected to the plug-in connector. A second terminal block has U-groove clip terminals which are connected via jumper wires to the clip terminals of the first terminal block. A third terminal block has U-groove clip terminals which are connected to the outside cable. A receptacle having female contact terminals is connected to the clip terminals of the second and third terminal blocks, the receptacle also having a female contact terminal for making a ground connection. This receptacle also receives male contact terminals of a protector module which includes a protection device. At least one back wiring board has the connector, the first, second and third terminal blocks and the receptacle mounted thereon.

Abstract: An antenna system having a main reflector, a sub-reflector, and a plurality of horns for radiating different frequencies includes a beam waveguide system which cancels cross polarization otherwise inherent in the system. If the antenna system uses a non-rotationally-symmetric sub-reflector the cross polarization caused thereby is cancelled by the beam waveguide system having at least two focusing reflectors and selected parameters. Alternatively the beam waveguide system can be used with a rotationally symmetric and stationary sub-reflector by being positioned to reflect said beam on the axis of the main reflector. Either the horns or the focusing reflectors may be rotatably switched, the other group being stationary.

Abstract: In the case of forming a single-layered or multilayered compound semiconductor film such as a GaAs thin film for a semiconductor laser, an EL light-emission element and the like in a molecular beam epitaxis method, a vacuum deposition method or a sputtering method, the method of the invention is to prevent the compounds from deteriorating and decomposing by making activated hydrogen coexist therein.

Abstract: A method for welding by a magnetically driven arc, which comprises placing two objects of welding in butt formation with a small gap between the end edges thereof to form a welding line; parallelly connecting a first electric circuit comprising the two objects of welding and a cable arranged on the surface side of the two objects of welding and a second electric circuit comprising the two objects of welding and another cable arranged on the back side of the two objects of welding to a welding power source; flowing a welding current through the first and second electric circuits to produce an arc in the small gap; moving the arc along the welding line under the effect of an electromagnetic force in the direction of the welding line, the electromagnetic force being produced by the magnetic flux of magnetizing coils provided near the end edges of the two objects of welding and welding current flowing through the arc; and changing the amount of welding current flowing through the first and second electric circuit

Abstract: An antenna system having a main reflector, a sub-reflector, and a plurality of horns for radiating different frequencies includes a beam waveguide system which cancels cross polarization otherwise inherent in the system. If the antenna system uses a non-rotationally-symmetric sub-reflector the cross polarization caused thereby is cancelled by the beam waveguide system having at least two focusing reflectors and selected parameters. Alternatively the beam waveguide system can be used with a rotationally symmetric and stationary sub-reflector by being positioned to reflect said beam on the axis of the main reflector. Either the horns or the focusing reflectors may be rotatably switched, the other group being stationary.

Abstract: Glutamine derivatives and non-toxic salts thereof have been found to have immunomodulating activities.

Abstract: An ultrasonic blood flow measuring apparatus comprising:an ultrasonic probe for transmitting an ultrasonic beam into a tissue under examination in response to an electrical driving pulse and for receiving an ultrasonic echo reflected from the tissue to convert the same into an electrical signal;a pulse generator arrangement for generating the electrical driving pulse of said probe;a detector circuit for detecting a tomogram signal from the electrical signal;a Doppler signal processing circuit for extracting Doppler frequency shift components due to velocity of a blood flow in the tissue from the electrical signal;a marker signal generator for generating marker signals indicative of a location where velocity of the blood flow is measured and a direction of the ultrasonic beam which contains the Doppler frequency shift components;an arithmetic circuit for calculating an angle .theta.

Abstract: A thermostat comprising a valve and a wax container connected to the valve. A drive rod projects from the end face of the wax container and is connected to the casing of the thermostat. The drive rod is actuated by the expanding operation of the wax contained in the wax container. A hollow cylindrical sealing sleeve is arranged on the end face of the wax container and has a hole through which the drive rod passes. A plurality of triangular shaped projections is formed on the inner wall of the hole of the sealing sleeve. A spring cap is fitted onto the sealing sleeve for pressing the triangular shaped projections onto the drive rod due to the spring force of the spring cap.

Abstract: A subreflector and reflectors in a primary radiation system, these constituting an offset dual-reflector aerial, are subjected to the so-called reflector-surface shaping. The main reflector is formed as a part of a revolutional paraboloid, and is a combination of a number of congruent reflector-segments. With such an arrangement, the manufacturing cost of a large-sized main reflector is reduced. The production error, and the aerial gain reduction and the deterioration of a wide-angle directivity due to the production error are minimized.

Abstract: A photosensitive composition containing the 2-trihalomethyl-5-aryl-1,3,4-oxadiazole compound represented by the following general formula: ##STR1## wherein X represents a chlorine atom or a bromine atom and A represents a phenyl group, a naphthyl group or a phenyl or naphthyl group substituted by a halogen atom, an alkyl group, an alkoxy group, a nitro group, a cyano group or a methylenedioxy group.

Abstract: A photosensitive resin composition comprising:(a) a photopolymerizable or photocrosslinkable ethylenically unsaturated compound;(b) a compound of the formula (I): ##STR1## wherein X.sub.1, X.sub.2 and X.sub.3 may be the same or different and each represents a hydrogen atom, a chlorine atom or a bromine atom and at least one of X.sub.1, X.sub.2 and X.sub.3 representing a chlorine atom or a bromine atom; Y represents a --CX.sub.1 X.sub.2 X.sub.3 group where X.sub.1, X.sub.2 and X.sub.3 are as defined above, --NH.sub.2, --NHR', --NR'.sub.2, --SR', --OR' or --R' wherein R' is an alkyl group or an aryl group; R is an alkyl group, an aryl group or an alkenyl group, and may be substituted;(c) a compound of the formula (II): ##STR2## where Z represents the non-metallic atoms necessary to complete a nitrogen-containing heterocyclic ring; R.sub.1 is an alkyl group or a substituted alkyl group; R.sub.2 is an alkyl group, an aryl group or a substituted aryl group; and(d) a dye precursor.

Abstract: A photopolymerizable composition comprising a polymerizable ethylenically unsaturated compound, optionally, a linear organic polymer, and a photopolymerization initiator comprising a combination of a compound represented by the general formula (I) ##STR1## wherein Z represents the non-metal atomic group necessary to form a nitrogen containing heterocyclic nucleus, R.sub.1 represents an alkyl group or a substituted alkyl group, and R.sub.2 represents an alkyl group or an aryl group having a comparatively high photopolymerization initiating ability; and a compound represented by the general formula (II) ##STR2## wherein X represents a halogen atom, Y represents --CX.sub.3, --NH.sub.2, --NHR.sup.1, --NR.sup.1.sub.2 or OR.sup.1, R.sup.1 represents an alkyl group or an aryl group and R represents an alkyl group, an alkyl group substituted with at least one chlorine atom, an aryl group, a substituted aryl group or a substituted alkenyl group.

Abstract: Photosensitive compositions containing 2-halomethyl-5-vinyl-1,3,4-oxadiazole compounds represented by the following general formula (I): ##STR1## wherein W represents a substituted or unsubstituted aryl group, X represents a hydrogen atom, an alkyl group or an aryl group, Y represents a fluorine atom, a chlorine atom or a bromine atom, and n represents an integer of 1 to 3.

Abstract: A signal, which is the sum of an ultrasonic wave echo signal and a group of PPM (pulse-position-modulated) pulses representative of a reference signal, is applied to a cathode ray tube (CRT) and is swept along one axis by a first sweeping signal with a first frequency and along a second axis by a second sweeping signal of lower frequency. The ultrasonic echo signal and the group of PPM pulses are concurrently displayed on the CRT. Ultrasonic wave rate pulses synchronous with the first sweeping signal are applied at the first frequency to an ultrasonic transducer to emit ultrasonic waves which upon receipt are converted to an ultrasonic wave echo signal. A sawtooth wave generator circuit is provided for generating a sawtooth wave with a second frequency n times the first frequency. Here, n is an integer and equal to or larger than 2. The reference signal, such as an electrocardiographic signal, is modulated by the sawtooth wave to produce a train of pulse-position-modulated (PPM) pulses.

Abstract: An ultrasonic diagnostic apparatus comprises a probe having at least one electro-acoustic transducing element, a motor for imparting a sector motion to the probe, a pulse oscillator for energizing the electro-acoustic transducing element to generate ultrasonic pulses, and a signal processing circuit connected to receive from the electro-acoustic transducing element electric signals corresponding to the ultrasonic signals received by the probe and to process the electric signals so as to provide information on the living body being examined. The apparatus further comprises a first control circuit connected to receive first reference signals of a predetermined frequency and control the rotation of the motor according to the first reference signals, a second control circuit connected to receive second reference signals and control the rotation of the motor according to the second reference signals, and a switching circuit for connecting the first and second control circuits alternatively to the motor.

Abstract: A radiographic phosphor screen to be used as an intensifying screen, a direct viewing fluorescent screen, an input screen of an image intensifier tube for radiography and the like, which comprises a substrate and, supported thereon, a phosphor represented by the following general formula:M(P.sub.x, V.sub.1.sub.-x)0.sub.4wherein M stands for at least one element selected from the group consisting of yttrium (Y), lanthanum (La), gadolium (Gd) and lutetium (Lu) and x is a number of from 0.7 to 0.99,Or a phosphate formed by activating said phosphor with 0.01 to 0.5 mole % of thulium (Tm).

Abstract: High quality activated carbon is produced by charging a mixture of an organic material such as wood, anthracite coal, brown coal, coconut husk, and a material containing metal oxide, metal carbonate or metal hydroxide, such as iron ore and lime, into an internal heating rotary furnace, preferably, having an internal space with a length of 1 to 10 times the diameter thereof, through an end of the rotary furnace, blowing air or oxygen gas into the internal space through an opposite end thereof, burning the distilled gas from the organic material and carbon monoxide generated by the reaction of the organic material with the metal oxide, carbonate or hydroxide, and uniformly circulating the burnt gas in the internal space to maintain the internal space at the reduction temperature.