Abstract: Provided is a biaxially stretched polypropylene film for capacitors having a thin thickness and having excellent initial voltage resistance and excellent long-term heat resistance and voltage resistance, and also provided is a metallized polypropylene film for capacitors. The polypropylene film for capacitors is obtained by biaxially stretching a polypropylene resin, the polypropylene film having a crystallite size of 122 ? or less as determined by the Scherrer's equation from the half width of the reflection peak from (040) plane of ?-crystal measured by a wide angle X-ray diffraction method, and the polypropylene film having a value of birefringence ?Nyz with respect to a thickness direction of 7.0×10?3 or more and 10.0×10?3 or less as measured by an optical birefringence measurement.

Abstract: Provided is a biaxiaiiy stretched polypropylene film for capacitors having a thin thickness and having excellent initial voltage resistance and excellent long-term heat resistance and voltage resistance, and also provided is a metallized polypropylene film for capacitors. The polypropylene film for capacitors is obtained by biaxiaiiy stretching a polypropylene resin, the polypropylene film having a crystallite size of 122 ? or less as determined by the Scherrer's equation from the half width of the reflection peak from (040) plane of ?-crystal measured by a wide angle X-ray diffraction method, and the polypropylene film having a value of birefringence ?Nyz with respect to a thickness direction of 7.0×10?3 or more and 10.0×10?3 or less as measured by an optical birefringence measurement.

Abstract: An automated billing type information providing system capable of utilizing the Internet, etc. simply by paying a charge with a prepaid card, etc. has a monitor imparted to a user and connected to a provider through a telecommunication line via a server, a signal receiving unit for receiving video signals output to the monitor, and a billing unit for integrating Internet use time through the telecommunication line or a projection time for which the video signals are projected on the monitor through the signal receiving unit, and calculating the use charge based on the results of this integration. A user pays the use charge calculated by the billing unit and is thereby allowed to utilize the Internet through the telecommunication line and to at least view the video signals on the monitor.

Abstract: A central air conditioning system for a multistory, multiroom building is arranged with a local re-conditioning unit mounted within a ceiling chamber of the building and combined with an illuminating appliance. Air in the space to be air conditioned is admitted to the re-conditioning unit through an air inlet opening formed in the illuminating appliance and is withdrawn from the re-conditioning unit into the space to be air conditioned through an air outlet opening also formed in the illuminating appliance.

Abstract: A method of and an air conditioning unit for re-conditioning air supplied by a central air conditioning system and circulated through a space to be air conditioned, characterized in that water condensate produced by the evaporation of a refrigerant is vaporized by the heat of condensation of the refrigerant and is discharged from the ceiling chamber above the space air conditioned.