Abstract: The present invention provides a site evaluation system for evaluating a site which consists of one or more pages and a site evaluation program storage medium that stores thereon a site evaluation program for causing a computer system to operate as such a site evaluation system, in which site evaluation that minimizes errors and inconsistency and requires a lower evaluation cost can be performed. The system acquires a temporal change in the numbers of accesses to each of pages constituting a site, identifies a page for which a temporal change in the number of accesses exceeds a predetermined criterion, further acquires a temporal change in a word in the identified page, compares the temporal change in the number of accesses to the identified page with the temporal change of the word, and evaluates the comparison result based on a predetermined criterion.

Abstract: The present invention provides a site evaluation system for evaluating a site which consists of one or more pages and a site evaluation program storage medium that stores thereon a site evaluation program for causing a computer system to operate as such a site evaluation system, in which site evaluation that minimizes errors and inconsistency and requires a lower evaluation cost can be performed. The system acquires a temporal change in the numbers of accesses to each of pages constituting a site, identifies a page for which a temporal change in the number of accesses exceeds a predetermined criterion, further acquires a temporal change in a word in the identified page, compares the temporal change in the number of accesses to the identified page with the temporal change of the word, and evaluates the comparison result based on a predetermined criterion.

Abstract: The present invention provides a site evaluation system for evaluating a site which consists of one or more pages and a site evaluation program storage medium that stores thereon a site evaluation program for causing a computer system to operate as such a site evaluation system, in which site evaluation that minimizes errors and inconsistency and requires a lower evaluation cost can be performed. The system acquires a temporal change in the numbers of accesses to each of pages constituting a site, identifies a page for which a temporal change in the number of accesses exceeds a predetermined criterion, further acquires a temporal change in a word in the identified page, compares the temporal change in the number of accesses to the identified page with the temporal change of the word, and evaluates the comparison result based on a predetermined criterion.

Abstract: The present invention provides a site evaluation system for evaluating a site which consists of one or more pages and a site evaluation program storage medium that stores thereon a site evaluation program for causing a computer system to operate as such a site evaluation system, in which site evaluation that minimizes errors and inconsistency and requires a lower evaluation cost can be performed. The system acquires a temporal change in the numbers of accesses to each of pages constituting a site, identifies a page for which a temporal change in the number of accesses exceeds a predetermined criterion, further acquires a temporal change in a word in the identified page, compares the temporal change in the number of accesses to the identified page with the temporal change of the word, and evaluates the comparison result based on a predetermined criterion.

Abstract: The present invention provides a site evaluation system for evaluating a site which consists of one or more pages and a site evaluation program storage medium that stores thereon a site evaluation program for causing a computer system to operate as such a site evaluation system, in which site evaluation that minimizes errors and inconsistency and requires a lower evaluation cost can be performed. The system acquires a temporal change in the numbers of accesses to each of pages constituting a site, identifies a page for which a temporal change in the number of accesses exceeds a predetermined criterion, further acquires a temporal change in a word in the identified page, compares the temporal change in the number of accesses to the identified page with the temporal change of the word, and evaluates the comparison result based on a predetermined criterion.

Abstract: The present invention provides a site evaluation system for evaluating a site which consists of one or more pages and a site evaluation program storage medium that stores thereon a site evaluation program for causing a computer system to operate as such a site evaluation system, in which site evaluation that minimizes errors and inconsistency and requires a lower evaluation cost can be performed. The system acquires a temporal change in the numbers of accesses to each of pages constituting a site, identifies a page for which a temporal change in the number of accesses exceeds a predetermined criterion, further acquires a temporal change in a word in the identified page, compares the temporal change in the number of accesses to the identified page with the temporal change of the word, and evaluates the comparison result based on a predetermined criterion.

Abstract: A chemically resistant composite sheet composed of a PTFE substrate layer, a glass cloth, and an intermediate thermoplastic fluoropolymer layer of a thermoplastic fluorocarbon resin prepared by laminating the layers between a pair of rollers under pressure and under heat sufficient to melt the intermediate thermoplastic fluropolymer.

Abstract: An element for lining the interior surface of a tunnel, which comprises a composite panel in which a fibrous layer is laminated over a hard substrate, and a fluoropolymer surface layer is laminated over said fibrous glass layer.

Abstract: An element for lining the interior surface of a tunnel, which comprises a composite panel in which a fibrous layer is laminated over a hard substrate, and a fluoropolymer surface layer is laminated over said fibrous glass layer.

Abstract: The invention relates to a lined tank having a tank body of a wall with an interior surface and an exterior surface, one or more exterior shells disposed over at least a part of the tank body, the exterior shell being separated by a clearance from the exterior surface, a plurality of penetration holes ranging through the wall into the clearance, a chemically resistant tank liner having a side adhesively attached to the interior surface, and suction ports in the exterior shell for enabling vacuum drawn through the suction ports to exert a negative pressure on the tank liner through the penetration holes.

Abstract: Heat exchanging device wherein plural number of support plates are provided at a required distance from one another, a plurality of through holes are formed on these support plates, a plurality of spirally corrugated heating tubes of a fluorocarbon resin are put in each of the through holes independently from one another and these heating tubes are held by elastic bushings in the support plates.

Abstract: Heat exchanging device wherein plural number of support plates are provided at a required distance from one another, a plurality of through holes are formed on these support plates, a plurality of heating tubes of a fluorocarbon resin are put in each of the through holes independently from one another and these heating tubes are held by the support plates.

Abstract: A heating exchanging device comprising a first fluid retaining means; at least two opposed substantially V-shaped support plates, the plates being within the retaining means and having a plurality of holes; a plurality of heating tubes passing through said matrix of holes as to define a spiral path, and an upper support frame in parallel with a lower support frame for supporting said V-shaped support plates. The device may further comprise an I-shaped support plate disposed between said V-shaped support plates and connected centrally thereto, the upper and lower support frames being essentially centrally connected by the I-shaped plate and being connected proximate opposed terminal portions thereof by the V-shaped support plates. The support frame preferably has a steel core covered with an outer tube of fluorocarbon resin, the tube being heated and shrunk to provide intimate contact with the core.

Abstract: An exhaust gas suppressor which suppresses the generation of harmful gases contained in exhaust gases from internal combustion engines, wherein secondary air is efficiently heated to high temperature by a double-tubed heater installed downstream of the exhaust manifold of the internal combustion engine so as to connect to the internal combustion engine and is added to a mixture of primary air and fuel present in the suction manifold, the mixture being then fed to an eddy generating device, which generates eddies in the mixture for the complete gasification.

Abstract: An exhaust gas suppressor which suppresses the generation of harmful gases contained in exhaust gases from internal combustion engines, wherein secondary air is efficiently heated to high temperature by a coiled heater tube installed in the exhaust manifold of the internal combustion engine and is added to a mixture of primary air and fuel present in the suction manifold, the mixture being then fed to an eddy generating device which generates eddies in the mixture for complete gasification.