Abstract: An ignition coil for an internal-combustion engine has satisfactory electrical insulation capacity and is excellent in reliability and durability. The ignition coil for an internal-combustion engine comprises a primary bobbin on which a primary coil is wound, a secondary bobbin on which a secondary coil is wound, and a center core. The area of a cross section of the center core perpendicular to an axis of the coils at a position on the inner side of the opposite ends of the center core is a maximum.

Abstract: A gas engine operated machine includes a machine unit that includes an engine burning a gas fuel, and a working device driven by the engine, the machine unit being surrounded by and fixed to a rigid frame formed by framing an elongated frame material, and an upper portion of the machine unit being covered with a roof, such that the operated machine is easy to handle and attractive in appearance, and it is possible to effectively avoid another object colliding against piping parts such as a gas fuel pressure regulator and the like, or rain water, dust and the like striking against the piping parts, thereby stabilizing the operation of the piping parts and enhancing the durability of the piping parts. A roof includes an upper cover bulged upwards, and a lower cover mounted to a lower surface of the upper cover, and supported on a rigid frame through vibration-damping members.

Abstract: A photographic film has a width of 35 mm and comprises a continuous support comprising polyester and at least one photographic layer provided thereon. The support has a thickness of 112 to 128 .mu.m. The polyester has recurring units comprising 60 to 85 molar % of ethylene-2,6-naphthalate unit and 15 to 40 molar % of ethylene terephthalate unit and satisfies the formula (1):-0.65.ltoreq.?NDA!+log ?NET!.ltoreq.0.28 (1)wherein ?NDA! represents a ratio of a number of 2,6-naphthalate unit to a total number of 2,6-naphthalate unit and terephthalate unit, and ?NET! represents a ratio of a number of ethylene unit which has a 2,6-naphthalate unit on one side and a terephthalate unit on the other side to a total number of an ethylene unit in the polyester.

Abstract: A polymer scale preventive liquid for use in polymerization of a monomer having an ethylenic double bond, comprising (A) a protein and (B) an anionic polysaccharide, and having a pH 7 or less; and a method of preventing polymer scale deposition in a polymerization vessel, which comprises carrying out the polymerization of said monomer in a polymerization vessel having a coating on its inner wall surfaces by applying said liquid and then drying. Deposition of polymer scale can be effectively prevented; in addition, polymers with a high whiteness can be prepared. Moreover, this polymer scale preventive liquid has no poisonousness and is highly safe.

Abstract: The coefficient k.sub.1 of linear expansion in a temperature range from 50.degree. to 300.degree. C. of a non-magnetic support member of a recording medium, before a Co-Cr alloy film is formed thereon, is less than 0 mm/mm .degree.C., and the coefficient k.sub.2 of linear expansion in a temperature range from 50.degree. to 300.degree. C. of that support member after the Co-Cr alloy film is formed is less than 0.3.times.10.sup.-5 mm/mm .degree.C. The alloy film also includes carbon in the magnetic layer, and a protective film comprised of carbon is further formed on the magnetic layer. The recording medium is particularly adapted for perpendicular magnetic recording.

Abstract: Disclosed is a photographic printing paper comprising a raw paper which has on the emulsion side a resin coating constituted of polyethylene terephthalate or a resin blend of polyethylene terephthalate and another resin and titanium oxide grains dispersed therein and on the back side a resin coating constituted of the same polyethylene terephthalate or resin blend as used in the resin coating on the emulsion side and inorganic grains having an average grain size of from 1.5 to 12 .mu.m.

Abstract: Recombinant Baculovirus in which the cDNA encoding E protein derived from Japanese encephalitis virus is integrated into the genome region non-essential to proliferation of Baculovirus under control of the promoter is infected to insect cells such as Sf9 cells, derived from Spodoptera frugiperda and the infected cells are cultured to express E protein of Japanese encephalitis. This E protein is useful as vaccines or diagnostics.

Abstract: A method of preventing polymer scale deposition during polymerization of a monomer having an ethylenically double bond in a polymerization vessel, comprising the step of carrying out said polymerization in a polymerization vessel of which the inner wall surface has a coating comprising a water-soluble polysaccharide; and a polymer scale preventive agent comprising polysaccharide. By use of the method or agent, deposition of polymer scale can be effectively prevented; in addition, polymers with a high whiteness can be prepared. Moreover, the scale preventive agent used has no poisonousness or the like and is highly safe.

Abstract: There is provided a recombinant vaccinia virus having inserted cDNA coding for E-protein of Japanese encephalitis virus into a genome region non-essential to growth of a vaccinia virus, in the form of capable expression. The recombinant vaccinia virus is useful as a live vaccine.

Abstract: The present invention concerns apparatus for restraining vibration of a structure having at least one natural mode of vibration. The apparatus comprises an enclosure, a main weight, a resilient member, a viscous liquid, and an adjustment device. The enclosure defines an inner space therein and the main weight has a mass and is enclosed in the enclosure. The resilient member connects the weight to the enclosure and exerts on the weight, a restoring force proportional to the relative displacement of the weight with respect to the enclosure. The viscous liquid is retained in the inner space and has a viscosity which provides to the weight, a damping force which is proportional to a relative velocity of the weight with respect to the enclosure. The resilience of the resilient member and the mass of the main weight provide the apparatus with at least one natural frequency of vibration.

Abstract: A concrete filled steel tube column. The concrete filled steel tube column includes a steel tube having an inner face; a concrete core disposed within the steel tube; and a separating layer interposed between the inner face of the steel tube and the concrete core for separating the concrete core from the inner face of the steel tube so that the steel tube may not be bonded to the concrete core. After the separating layer is formed on the inner face of the steel tube, the concrete is charged into the steel tube to form a concrete core.

Abstract: The present invention provides a method of restraining vibration of a floor and an apparatus therefor.According to the method, a reservoir is attached to the floor which is supported from structural members of a floor structure and fluid is put in the reservoir. Geometry of the reservoir and depth of the fluid is determined so that sloshing natural frequency of the fluid coincides with a natural frequency of the floor in a same direction.The vibration restraining apparatus according to the present invention is provided with a reservoir wherein a prescribed amount of liquid is retained. Natural sloshing frequency of the liquid in the reservoir is generally equal to a natural frequency of the floor structure.As the floor vibrates because of vibration of the floor structure or vibrational source on the floor, vibrational energy of the floor is transmitted to the liquid and cause sloshing thereto.

Abstract: The present invention is related to a method for restraining response of a structure to outside disturbances such as winds and earthquakes etc. and an apparatus therefor.According to the invention there is provided an apparatus which comprises (a) an enclosure defining an inner space thereby, (b) a liquid retained in the enclosure and having a free surface, and (c) an obstacle means disposed in the enclosure for disturbing a flow of the liquid, whereby the liquid has at least one sloshing natural frequency and the obstacle means increases damping coefficient of the sloshing.

Abstract: The present invention provides a vibration restraining structure comprising a pair of wall members defining an inner space therebetween, separation walls separating the inner space into chambers, and a liquid retained in the chambers and having a free surface.The liquid retained in the chambers slosh as the building vibrates. Vibrational energy of the building is transferred to the liquid and generates sloshing thereof. As a result, vibration of the building is restrained. Vibration of the building is restrained most effectively when a natural frequency of the sloshing coincides with a natural frequency of the structure. In other words, the building and the liquid form a unitary oscillating system, and a fundamental vibration mode of the system is a mode wherein sloshing occurs together with a displacement of the building.The method for restraining vibration of a building comprises a step of providing the above-mentioned structures at locations where the model displacement of the building is significant.

Abstract: There is disclosed a device for suppressing vibration of a structure such as building, a bridge and the like. The vibration-suppressing device includes a tank disposed on the structure, a liquid contained in the tank, and damping mechanism disposed within the tank. The amount of the liquid is such that the natural period of the liquid is equal to that of the structure. The damping mechanism is of a net construction. When the structure is vibrated due to earthquake, wind or the like, the liquid in the tank vibrates for a quarter of a period out of phase compared to the structure, thereby suppressing the vibration of the structure. After suppressing the structure's vibration, the vibration of the liquid is effectively dampened as the liquid passes through the mesh of the dampening mechanism.

Abstract: An apparatus for suppressing vibration of a structure. The apparatus includes a tank adapted to be mounted in the structure and a chamber defining mechanism, arranged within the tank, for defining a plurality of annular chambers, concentric about a vertical axis of the tank, to receive a liquid for suppressing vibration of the structure. The chambers are each adapted to contain such an amount of the liquid that the liquid is equal in natural period to the structure.

Abstract: A concrete filled tube column includes: an outer tube connected to beams of the structure, the outer tube consisting of a plurality of tube pieces coaxially disposed in series; a concrete core disposed within the outer tube; an inner flange peripherally mounted on the inner face of each tube piece; and a concrete layer peripherally disposed on the inner face of each tube piece. The concrete layer includes a tubular portion positioned under the inner flange and in direct contact with the entire lower side of the inner flange. The tubular portion has an inner peripheral face tapering upward so that the transverse inner size at the lower end of the tubular portion is equal to the transverse inner size of each tube piece. In constructing the column, a plurality of the precast structural tubes, each including: the tube piece; the inner flange; and the concrete layer, are prepared. Then, one of the precast tubes is erected. Concrete is placed within the erected precast tube to form a concrete core.

Abstract: A device for suppressing vibration of a structure such as buildings and bridges, including a tank, disposed in the structure, for receiving a liquid for suppressing vibration of the structure, the tank being adapted to contain such an amount of the liquid that the liquid is equal in natural period to the structure.

Abstract: A concrete filled steel tube column which includes: a steel tube connected to beams of a structure so that an axial compressive load is transferred from the beams to the steel tube; and a concrete core, disposed within the steel tube, for bearing an axial compressive load transferred from the beams via the steel tube to the concrete core. The steel tube has a plurality of prestressed tube pieces concentrically joined in series. Each of these tube pieces has an axial prestress introduced into it to counteract a stress resulting from the compressive load applied to the steel tube. With this arrangement, substantially no axial stress is induced in the steel tube. In constructing the column, a steel tube piece is erected, and beams are joined to the tube piece. An axial tensile load is applied to the tube piece so that an axial stress is induced in the tube piece. After the application of the load, concrete is charged into the tube piece.

Abstract: A dichroic dye for coloring liquid crystal compositions are disclosed which is represented by the following general formula: ##STR1## in which Dye 1 and Dye 2 each represents a group of atoms necessary to form a linear dye structure containing an azo, azomethine or ester group; X represents a halogen atom; and n represents an integer of from 1 to 10. The dye is suited for use in color liquid crystal display devices, e.g., of guest-host type.