Abstract: A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-resistant iron-based sintered contact material sinter-bonded to a backing metal and its producing method are also provided. To this end, at least Cr7C3-type carbide and/or M6C-type carbide which have an average particle diameter of 5 ?m or more are precipitately dispersed in an amount of 20 to 50% by volume within an iron-based martensite parent phase which has a hardness of HRC 50 or more even when tempered at up to 600° C.

Abstract: A coupling device for equipment implements is described, which coupling device does not impair the lubricity of bearing sections when the equipment is in service, does not cause seizure during rotation of bearings, does not need frequent feeding of grease to the bearing sections from outside, and provides good noise absorbability. The coupling device has such a structure that a metal based contact material 7 capable of storing a lubricating oil and/or lubricant is interposed between an implement bushing 1 made from steel and implement pin 4 of an implement for construction equipment.

Abstract: A novel polypeptide binding to SMG-1, a polynucleotide encoding the same, and a system for screening a substance which artificially modifies an mRNA surveillance mechanism, are disclosed. The polypeptide has an activity of binding to SMG-1, an activity of being phosphorylated by SMG-1, and an activity of modifying SMG-1 activities through these activities.

Abstract: The invention provides a pin assembly and Implements connecting apparatus which can replace a working device such as a bucket or the like easily and for a short time. A first member (20) having a pair of brackets (18, 19) is connected to a second member (22) having a boss portion (21). First member (20) and second member (21) are connected so as to swing freely and mutually by inserting a pin assembly (17) having an outer tubular body (15) and a connection pin (16) rotatably connected thereto into one bracket (18), boss portion (21) and another bracket (19). In a connected state, outer tubular body (15) and boss portion (21) are fixed. Pin assembly (17) can be pulled out by applying a pressing force to an opposite side in an inserting direction of pin assembly (17).

Abstract: To provide a thermal spray membrane contact material, contact member and contact part and an apparatus to which they are applied, showing excellent seizure resistance and wear resistance even under high surface pressure/low speed sliding, high speed/high temperature sliding, or high surface pressure/high speed sliding.

Abstract: A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-resistant iron-based sintered contact material sinter-bonded to a backing metal and its producing method are also provided. To this end, at least Cr7C3-type carbide and/or M6C-type carbide which have an average particle diameter of 5 ?m or more are precipitately dispersed in an amount of 20 to 50% by volume within an iron-based martensite parent phase which has a hardness of HRC 50 or more even when tempered at up to 600° C.

Abstract: With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO2 and/or two or more substances selected from SiO2, Al2O3, LiO2, TiO2 and MgO.

Abstract: With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO2 and/or two or more substances selected from SiO2, Al2O3, LiO2, TiO2 and MgO.

Abstract: With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO2 and/or two or more substances selected from SiO2, Al2O3, LiO2, TiO2 and MgO.

Abstract: With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO2 and/or two or more substances selected from SiO2, Al2O3, LiO2, TiO2 and MgO.

Abstract: The invention provides a pin assembly and Implements connecting apparatus which can replace a working means such as a bucket or the like easily and for a short time. A first member (20) having a pair of brackets (18, 19) is connected to a second member (22) having a boss portion (21). The first member (20) and the second member (21) are connected so as to swing freely and mutually by inserting a pin assembly (17) having an outer tubular body (15) and a connection pin (16) rotatably connected thereto into one bracket (18), the boss portion (21) and another bracket (19). In the connection state, the outer tubular body (15) and the boss portion (21) are fixed. The pin assembly (17) can be pulled out by applying a pressing force to an opposite side in an inserting direction of the pin assembly (17).

Abstract: In a copper-based sintering sliding material, to reduce attacking power to the counter material by expressing an ability to scrape a local adhered object on the sliding surface, improve abrasion resistance of the material, and suppress the abrasive heat generation due to the hard phase, thereby improving the seizure limit, heat shock resistant ceramics comprising two or more selected from SiO2 and/or SiO2, Al2O3, LiO2, TiO2 and MgO are dispersed in an amount of 0.05 to 0.5% by weight or less, as nonmetallic particles comprising one or more kind(s) selected from finely grinded oxides, carbides and nitrides.

Abstract: A coupling device for equipment implements is described, which coupling device does not impair the lubricity of bearing sections when the equipment is in service, does not cause seizure during rotation of bearings, does not need frequent feeding of grease to the bearing sections from outside, and provides good noise absorbability. The coupling device has such a structure that a metal based contact material 7 capable of storing a lubricating oil and/or lubricant is interposed between an implement bushing 1 made from steel and implement pin 4 of an implement for construction equipment.

Abstract: With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO2 and/or two or more substances selected from SiO2, Al2O3, LiO2, TiO2 and MgO.

Abstract: A heat exchanger for executing heat exchange between heat exchange between heat exchange bodies (6) on a heat radiation side and heat exchange bodies (3) on a heat absorption side, having low thermal resistance and high performance of heat conduction includes heat exchange bodies 6 on a heat radiation side and heat exchange bodies 3 on a heat absorption side, each being disposed hierarchically, thermoelectric conversion element modules 2 interposed between the heat exchange body 6 on the heat radiation side and the heat exchange body 3 on the heat absorption side through an insulating coat 16, and having a plurality of thermoelectric conversion elements 12, 13, wherein the insulating coat 16 is formed integrally on a surface of at least one of the heat exchange body 6 on the heat radiation side and the heat exchange body 3 on the heat absorption side, and a metal coat 17 keeping electric contact with a surface of the thermoelectric conversion elements 12, 13 on either the heat radiation side or the heat absor

Abstract: A heat exchanger for executing heat exchange between heat exchange between heat exchange bodies (6) on a heat radiation side and heat exchange bodies (3) on a heat absorption side, having low thermal resistance and high performance of heat conduction includes heat exchange bodies 6 on a heat radiation side and heat exchange bodies 3 on a heat absorption side, each being disposed hierarchically, thermoelectric conversion element modules 2 interposed between the heat exchange body 6 on the heat radiation side and the heat exchange body 3 on the heat absorption side through an insulating coat 16, and having a plurality of thermoelectric conversion elements 12, 13, wherein the insulating coat 16 is formed integrally on a surface of at least one of the heat exchange body 6 on the heat radiation side and the heat exchange body 3 on the heat absorption side, and a metal coat 17 keeping electric contact with a surface of the thermoelectric conversion elements 12, 13 on either the heat radiation side or the heat absor

Abstract: An electronic navigation calculator having first input key group for navigation functions, second input key group for navigation numerals, third input key group for navigation operations, a memory device supplied with information signals from said first, second and third input key groups and memorizing said supplied information signals, operational and control device for carrying out predetermined navigation calculations in accordance with information signals from said input key groups, and output device for indicating the calculated results. As a result, a calculation of direction, speed, position and time of a moving body is carried out in accordance with said information signals from said first, second and third input key groups and the calculation result is displayed.