Abstract: A pair of slide plates are vertically displaceably fixed to the opposed front surfaces of a fixed jaw and a movable jaw constituting a vice. An arbitrary number of presser members for pressing a work are fixed on the upper surfaces of the fixed jaw and the movable jaw. The work is placed on upper ends of the slide plates adjusted in height, and a pressure from setscrews of the presser members is applied to the upper surface of the work. Accordingly, even when the work is a thin plate-shaped work, it can be stably held to prevent possible vertical curving of the work.

Abstract: An optical communication system of the optical feed forward type in which a main optical signal and a distortion signal are transmitted by a common optical fiber line from the transmission part to the reception part.

Abstract: A fuel assembly of the type having a plurality of a fuel material characterized in that a water rod disposed in a channel has a large diameter so that it has a space into which a plurality of fuel rods could be loaded and liquid water boil flows through the water rod and which has a section filled with a fuel material comprising a natural uranium section defined at least one of the upper and lower ends of each fuel rod and an enriched uranium section comprising the uppermost, intermediate and lowermost sections each having a different degree of average enrichment across a cross section of the fuel assembly and the upper and lowermost sections have the degree of enrichment across a section of the fuel assembly is lower than that of the intermediate section, and the enriched uranium section has two sections each of which has a different content of a burnable poison per unit length in the axial direction and the content of the burnable poison per unit of length in the axial direction in the uppermost section is

Abstract: A self-diagnostic circuit comprises a plurality logic of circuits to be diagnosed and a plurality of first and second storage circuits provided for the logic circuits respectively. The first storage circuits have outputs which indicate whether or not the corresponding logic circuits are being diagnosed. The second storage circuits stored results of diagnoses of the corresponding logic circuits. The first and second storage circuits and logic circuits have a sequential diagnostic operation mode in which logic circuits are sequentially diagnosed according to a diagnosis starting signal, and a scan operation mode in which a specific one among the logic circuits is selected and diagnosed. The scan operation mode is realized during the supply of the diagnosis starting signal and by supplying selection signals that select the specific one among the logic circuits.

Abstract: An optical communication arrangement (apparatus and method) employing intensity modulation. The parameters of the optical communication system that impose a maximum influence on the modulation distortion are monitored whenever necessary, and the operating parameters of the optical communication system can be corrected in accordance with the parameters being monitored. The system employs the intensity modulation in which a delaying mechanism having a low delay accuracy and a delaying mechanism having a high delay accuracy are provided to completely suppress the modulation distortion.

Abstract: A sunroof assembly includes a housing secured to the inner side of a roof panel to surround an opening, a guide rail attached to each of opposing sides of the housing, a shoe disposed in the guide rail so as to be freely slidable longitudinally of the vehicle, a sliding panel connected to the shoe via a cam member for opening and closing the opening of the roof panel, and a driving source for sliding the shoe along the guide rail longitudinally of the vehicle, wherein a pin provided on the shoe is capable of moving in a cam groove of the cam member. One end of a link is pivotally attached to the pin of the shoe, and the other end is pivotally attached to one end of a lever member. The latter is slidably connected to a bracket, which is secured to the cam member and the sliding panel, so as to be relatively movable longitudinally of the vehicle in operative association with the shoe.

Abstract: Herein disclosed is a reactor core including a plurality of fuel assemblies having a plurality of fuel rods. In a central region of the transverse section of the fuel assembly, a plurality of fuel rods are arranged in the form of a square lattice. In the peripheral region surrounding the central region, a plurality of fuel rods are arranged in the form of triangular lattice. The pitch of the fuel rods arranged in the square lattice form is equal to that of the fuel rods arranged in the triangular lattice form. With the arrangement of the fuel rods in the triangular lattice form in the peripheral region, the ratio of the moderator to the fuel of the peripheral region is smaller than that of the central region. As a result, the local power peaking drops. Since the arrangement of the fuel rods is partially in the triangular lattice form, the pitch of the fuel rods can be increased to augment the MCPR.

Abstract: A reinforcing woven fabric comprising warps of reinforcing filamentary yarns arranged to form a high-density portion of warps and low-density portion of warps in the transverse direction and wefts of reinforcing filamentary yarns extending obliquely to the warps, a preformed material formed using a plurality of the reinforcing woven fabrics, a fiber reinforced composite material formed using the preformed material and a beam particularly suitable as the fiber reinforced composite material. The high-density portion of warps in the reinforcing woven fabric can satisfy the strength and rigidity against bending or tensile stress required for the flange of the beam and the obliquely extending wefts in the low-density portion of warps can satisfy the strength against shear stress required for the web of the beam, when a plurality of the reinforcing woven fabrics are laminated to form the preformed material for the beam. The mechanical properties required for the beam can be efficiently obtained.

Abstract: The present invention relates to an article fixing device for fixing an article to be mounted to a mounting surface of a mounting member removably. Both sides of the mounting member are grippingly fixed by a pair of pivoting members mounted to the article to be mounted. The article to be mounted can be mounted in close contact with the mounting surface of the mounting member by rotating forces of the pivoting members.

Abstract: In a hot standby transmitter system, each of a pair of identical transmitters, one of which is a primary and another one is a standby, includes an image-cancel type mixer, which outputs upper or lower sideband waves of a local frequency, according to its internal connection controlled by a switch controller. The switch controller controls the internal switches and an RF switch, so that the primary transmitter outputs a predetermined primary one of the sidebands and the standby transmitter outputs another sideband. The RF switch selectively connects the output of the primary transmitter to an antenna. The standby transmitter undesirably outputs a small level of the primary sideband even though it should be theoretically zero.

Abstract: A panel moving mechanism for a sunshine roof of the type in which the rear end of a panel for closing an opening of the roof of a vehicle is raised and lowered. The mechanism includes a shoe and an arm which are pivotally connected. A pair of pins protrude from the arm and are inserted into respective guide grooves provided in a guide block and a bracket connected to the panel. The longitudinal axes of these guide grooves are bent at the middle sections thereof and are arranged in such a manner that they are not parallel. When the shoe moves toward the front end of the vehicle, the arm is gradually brought to a raised position, thereby raising the rear end of the panel. When the shoe moves toward the rear end of the vehicle, the arm is gradually brought to a horizontal position, thereby lowering the rear end of the panel.

Abstract: A cordless thermal vaporizer of the liquid type wherein the body of the vaporizer has a heater for heating a wick for drawing up a chemical solution from a bottle, and a socket disposed under the heater and removably fittable in the form of a cap to the bottle for attachment thereto. The body is reduced in weight and thereby made attachable to an electric outlet with stability. The solution bottle can be attached directly to the socket of the body and is therefor easy to replace.

Abstract: An apparatus for coupling two optical elements comprises a plurality of optical fibers, a plurality of first substrates stacked in a first direction, and a plurality of second substrates stacked in a second direction perpendicular to the first direction. Each optical fiber is fixed to one of the first substrates and a corresponding one of the second substrates such that none of the optical fibers cross over one another.

Abstract: Disclosed is a clock supply circuit operating in a first phase and a second phase. Each buffer provided in each channel operating in the second phase has the same drive ability, and the number of flip-flops which are dependent on each buffer is the same. When the number of the flip-flops is not the same, capacitance means is provided in each channel in order to make conditions uniform for operation in the second phase.

Abstract: The present invention relates to a work holder for a vice in a machine tool, in which by means of a holder body attached removably to a fixed jaw of the vice and a clamp block and a clamp screw both attached to the holder body, a work whose side faces have already been machined is fixed temporarily in an exact vertical posture and then fixed completely by the vice so that the side faces thereof are set exactly at right angles to permit machining for the top face of the work.

Abstract: A test circuit targeted to test data path blocks such as an arithmetic block to be tested including an arithmetic unit for operating multiple bits as well as including various registers related to the arithmetic unit. The test circuit includes flip-flops for receiving data from a first pin forming a shift register, having the ability of holding data by the control of a test node signal multiplexers for selectively generating control signals for controlling the elements in the data path block to be tested, a second pin connected to the flip-flops and multiplexers to externally provide them with a test mode signal under a test mode, a bus switch connected between a third pin and an internal data bus to control input of test data from the third pin to the arithmetic block and input of an operation result to the third pin via the internal data bus, gates for controlling data input and output with respect to the bus switch, and a timing signal generator for generating timing signals for controlling the gates.

Abstract: The present invention relates to a work holding vice jig to be attached to a jaw of a vice. According to the construction of this vice jig, grooves are formed in a work holding surface of the jig body so that works of special shapes, e.g. a round bar, can be clamped to the vice easily; further, a slide member which is slidable obliquely relative to the jig body is provided, and works of various thicknesses can be clamped to the vice efficiently by upward and downward sliding motions of the slide member.

Abstract: In a coated optical fiber tape comprises a plurality of optical fibers each having a coating and being aligned parallel in the same plane, a common coating layer covering the array of the optical fibers, and a peelable cured coating layer being provided between each of the coatings on the optical fibers and the common coating layer to prevent the latter from being bonded or urged to said coatings on the optical fibers, the improvement wherein the peelable cured coating layer has a compression modulus of elasticity of at least 5 kg/mm.sup.2 but not exceeding 300 kg/mm.sup.2.

Abstract: A sliding panel which closes an opening formed in an automobile roof can be placed inside the roof to open the opening. A rain channel is located below the rear end of the opening when the opening is closed, to accept incoming water. The channel is placed inside the roof together with the panel. The channel moves relative to the panel in a direction opposite to the direction of movement of the panel inside the roof, for reducing the space needed to accommodate the panel.

Abstract: A preformed material for use in fiber reinforced plastics is formed by laminating and integrally bonding a plurality of sheet-like substrates comprising reinforcing fibers. At least one of the laminated substrates is a woven fabric substrate having bonding material composed of a thermoplastic polymer pre-adhering to the substrate and extending substantially linearly along reinforcing yarns or auxiliary filamentary yarns of the substrate. Due to the bonding material the substrates of the preformed material are effectively bonded to each other even if the amount of the bonding material is small, no deterioration occurs in the arrangement and the distribution of the reinforcing fibers, no dislocation of the substrates occurs during a manufacturing process, and excellent characteristics of and a high productivity for forming the fiber reinforced plastics can be obtained.