Abstract: A closed subscriber group (CSG) cell allows use of subscribers. To receive the service by the CSG cell, a CSG-ID is notified to a user equipment, but cannot be obtained outside the reach of radio waves from a non-CSG cell. Base stations respectively provided to a CSG cell and a non-CSG cell, and access is made to the CSG cell with the use of a CSG-ID issued when use of the CSG cell is allowed, the base station refers to the notified identification information of a user equipment and then transmits a tracking area update request from the user equipment to a core network. The core network determines whether the user equipment is allowed to use the CSG cell and, if allowed, transmits a signal for assignment of radio resources to the user equipment and the CSG-ID. The user equipment accesses the CSG cell with the CSG-ID.

Abstract: In a production process of a poly(arylene sulfide), a mixture containing an organic amide solvent, an alkali metal hydrosulfide and an alkali metal hydroxide in a proportion of 0.95 to 1.05 mol per mol of the alkali metal hydrosulfide is heated and dehydrated in a dehydration step. After the dehydration step, as needed, an alkali metal hydroxide and water are added to control the total number of moles of the alkali metal hydroxide, and the number of moles of water so as to amount to 1.00 to 1.09 per mol of a sulfur source including the alkali metal hydrosulfide existing in the system and to 0.5 to 2.0 per mol of the charged sulfur source, respectively. A polymerization step is conducted by a two-stage process.

Abstract: A process for producing a poly(arylene sulfide), comprising the respective steps of a washing step of washing a polymer separated from a reaction mixture containing the polymer formed with an organic solvent, which is arranged after a polymerization step, a purification step of purifying the organic solvent recovered after the washing step to lower the content of an alkaline compound mixed therein, and a step of recycling the purified organic solvent through the washing step of the poly(arylene sulfide).

Abstract: In the dehydration step, a mixture comprising an organic amide solvent and a sulfur source is heated, vapor volatilized is guided to a distillation column, a fraction comprising the organic amide solvent as a principal component is refluxed into a reaction vessel, a fraction comprising water and hydrogen sulfide is cooled to discharge hydrogen sulfide that is not condensed by the cooling and reflux a part of water condensed into the distillation column, the remaining water is discharged, a relational expression between the total amount of water of an amount of water refluxed and an amount of water discharged without being refluxed, and an amount of hydrogen sulfide discharged from the reaction vessel is determined in advance, and an amount of hydrogen sulfide discharged from the reaction vessel is calculated out from a measured value of the total amount of water on the basis of the relational expression to control a charged molar ratio of the sulfur source to a dihalo-aromatic compound.

Abstract: In the dehydration step, a mixture comprising an organic amide solvent and a sulfur source is heated, vapor volatilized is guided to a distillation column, a fraction comprising the organic amide solvent as a principal component is refluxed into a reaction vessel, a fraction comprising water and hydrogen sulfide is cooled to discharge hydrogen sulfide that is not condensed by the cooling and reflux a part of water condensed into the distillation column, the remaining water is discharged, a relational expression between the total amount of water of an amount of water refluxed and an amount of water discharged without being refluxed, and an amount of hydrogen sulfide discharged from the reaction vessel is determined in advance, and an amount of hydrogen sulfide discharged from the reaction vessel is calculated out from a measured value of the total amount of water on the basis of the relational expression to control a charged molar ratio of the sulfur source to a dihalo-aromatic compound.

Abstract: A process for producing a poly(arylene sulfide), comprising the respective steps of a washing step of washing a polymer separated from a reaction mixture containing the polymer formed with an organic solvent, which is arranged after a polymerization step, a purification step of purifying the organic solvent recovered after the washing step to lower the content of an alkaline compound mixed therein, and a step of recycling the purified organic solvent through the washing step of the poly(arylene sulfide).

Abstract: In a production process of a poly(arylene sulfide), a mixture containing an organic amide solvent, an alkali metal hydrosulfide and an alkali metal hydroxide in a proportion of 0.95 to 1.05 mol per mol of the alkali metal hydrosulfide is heated and dehydrated in a dehydration step. After the dehydration step, as needed, an alkali metal hydroxide and water are added to control the total number of moles of the alkali metal hydroxide, and the number of moles of water so as to amount to 1.00 to 1.09 per mol of a sulfur source including the alkali metal hydrosulfide existing in the system and to 0.5 to 2.0 per mol of the charged sulfur source, respectively. A polymerization step is conducted by a two-stage process.

Abstract: Sliced workpieces severed from a metal extrusion transversely of it and into a desired thickness, or bent ones made from the extruded metal pipes, are restrained at their regulated correct positions each in its entirety or in part. Subsequently, the workpieces are compressed in a direction to the thickness or in the direction perpendicular to the primary bending direction. Plastic deformation of or exceeding 0.5%, or more preferably 2-5%, will be produced in each workpiece. Alternatively, those sliced or bent workpieces may be pressed in a direction to that of thickness or in the direction perpendicular to a previous bending, after each workpiece is restrained in its entirety or in part at the regulated correct dimension.

Abstract: In a method of producing twisted aluminum products, an elongate heat-treatable aluminum article is twisted at first to have a value "tan .phi." of 0.5 or more, with the term .phi. denoting a helical angle of the thus twisted article. The twisted aluminum article is then subjected to a solid solution treatment and the step of aging, in this order.

Abstract: An end holder (5) has a main recess (8) and cavities (8a) to fit on an end of an extruded aluminum profile material (1) having a semi-hollow portions (1a). Each of chucks (6) can protrude into the semi-hollow portion placed in the cavity (8a) so as to chuck the inner surface of said portion (1a), so that the end of material (1) can be firmly held in place while it is being severed from a body of the material to thereby produce high quality slices of an improved precision in dimension and shape.

Abstract: A laser-emitting head (12) is placed in a cavity (6) of an aluminum hollow and profile material (3), the material being of a desired shape in cross section and having an inner peripheral wall. A laser beam of an energy level capable of cutting the material is irradiated from the cavity onto the inner peripheral wall while the head is being rotated along the wall in a circular direction. The hollow and profile material (3) can be sliced in this manner to produce knuckles (1) as one of automobile parts, even if it is of a comparatively large size adapted for production of larger knuckles.

Abstract: A process for producing a suspension member for a vehicle, which member comprises a first mounting portion relatively swingably connected to either one of a vehicle body and an axle, through a connecting member, an a second mounting portion integrally connected to the first mounting portion and connected to the other of the vehicle body and the axle. The first mounting portion is provided at an outer surface thereof with a pair of parallel cam guides of readjusting the relative mounting position between the first mounting portion and a connection member by cooperation with eccentric cams connected to the connecting member. The process comprises steps of forming a base material for the suspension member by an extrusion, and cutting the base material along planes spaced at an equal distance form onto another in an extruding direction to provide a plurality of the suspension members.

Abstract: An upper arm 1 of a front suspention made of light alloy is provided with a lateral rubber bush mounting bore 2 connected to a vehicle body, and a vertical joint mounting bore 6 connected to a wheel support member. When forming the arm 1, a shape of the arm 1 is first determined such that the mounting bores 2 and 6 are directed in the same direction. Then, the arm 1 is extuded in an axial direction of the bores, and after cutting off the extruded material at a predetermined length, a portion of the mounting bore 2 is twisted by 90.degree.. Therefore, the extrusion can be employed for producing the suspention arm made of light alloy without increasing a thickness thereof.

Abstract: A suspension arm is formed of at least two arm bodies formed by an extrusion. The arm bodies are coupled such that their extruding directions intersect each other. The coupled assembly is integrally provided at one end thereof with a mounting portion for mounting to a wheel and at the other end of the coupled assembly with a mounting portion for mounting to the vehicle body. Thus, a required rigidity and strength can be efficiently provided to portions of the suspension arm to oppose various external forces applied to such portions, while enabling a reduction in weight of the suspension arm.