Abstract: It is possible to accurately grasp the taste of each user and provide information in which the taste thereof is accurately reflected. Store information kept in a store information storage unit (100) is provided to each user. User taste information (T) including the values of taste on feature items of each genre is stored for each user in a user taste information storage unit (110). Store evaluation information (E) including the values of evaluation on the feature items of its genre is stored for each store in a store evaluation information storage unit (120). A store information providing unit (130) selects store information having the store evaluation information (E) matched with the user taste information (T) and provides it to the user. If the user views specific store information or utilizes a specific store, the specific store is recoded in a target store recording unit (150) as a target store.

Abstract: The information providing system accurately predicts a behavior pattern of a user, selects and provides the optimal information at individual points in time. Provision information files for a number of stores are stored. When a user from a cellular phone transmits a retrieval condition including the position information and a keyword, a file is retrieved whose degree of accordance to the retrieval condition is a certain reference level. Tables show statistical degrees of interest of users in association with respective geographical areas, respective time periods, and respective store genres. The degree of accordance of the retrieved file is corrected based on the corresponding degrees of interest in the tables, and a list is presented, in which stores are sorted in the large order of the corrected degree of accordance, to the phone. The store information selected by the user from the list is distributed to the phone.

Abstract: The information providing system accurately predicts a behavior pattern of a user, selects and provides the optimal information at individual points in time. Provision information files for a number of stores are stored. When a user from a cellular phone transmits a retrieval condition including the position information and a keyword, a file is retrieved whose degree of accordance to the retrieval condition is a certain reference level. Tables show statistical degrees of interest of users in association with respective geographical areas, respective time periods, and respective store genres. The degree of accordance of the retrieved file is corrected based on the corresponding degrees of interest in the tables, and a list is presented, in which stores are sorted in the large order of the corrected degree of accordance, to the phone. The store information selected by the user from the list is distributed to the phone.

Abstract: The information providing system accurately predicts a behavior pattern of a user, selects and provides the optimal information at individual points in time. Provision information files (F1, F2, . . . ) for a number of stores are stored in the file storage section (100). When a user accesses the retrieval condition enter section (130) from a cellular phone (10) and transmits a retrieval condition including the position information and a keyword, the retrieval executing section (120) retrieves a file whose degree of accordance to the retrieval condition is a certain reference level or more. The list presentation section (140) comprises tables showing statistical degrees of interest of users in association with respective geographical areas, respective time periods, and respective store genres.

Abstract: The information providing system accurately predicts a behavior pattern of a user, selects and provides the optimal information at individual points in time. Provision information files (F1, F2, . . . ) for a number of stores are stored in the file storage section (100). When a user accesses the retrieval condition enter section (130) from a cellular phone (10) and transmits a retrieval condition including the position information and a keyword, the retrieval executing section (120) retrieves a file whose degree of accordance to the retrieval condition is a certain reference level or more. The list presentation section (140) comprises tables showing statistical degrees of interest of users in association with respective geographical areas, respective time periods, and respective store genres.

Abstract: It is possible to accurately grasp the taste of each user and provide information in which the taste thereof is accurately reflected. Store information kept in a store information storage unit (100) is provided to each user. User taste information (T) including the values of taste on feature items of each genre is stored for each user in a user taste information storage unit (110). Store evaluation information (E) including the values of evaluation on the feature items of its genre is stored for each store in a store evaluation information storage unit (120). A store information providing unit (130) selects store information having the store evaluation information (E) matched with the user taste information (T) and provides it to the user. If the user views specific store information or utilizes a specific store, the specific store is recoded in a target store recording unit (150) as a target store.

Abstract: A cell unit structure for stacking to form a fuel cell is described, composed of a porous substrate, a hydrogen electrode film formed of fine particles of nickel powder stacked on the porous substrate to form fine voids of homogeneous diameter, a film of solidous electrolyte stacked on the hydrogen electrode film, and an oxygen electrode film stacked on the electrolyte film.

Abstract: An ion-exchange porous, secondary battery separation membrane produced by mixing a high molecular compound matrix material, an ion exchange material, and a pore forming material, kneading the materials, forming the kneaded materials in the form of a membrane, and extracting the pore forming material from the membrane.

Abstract: A surface treated electrode applicable to an electrode of a zinc-halogen secondary battery, etc. The surface plastic electrode includes (a) an electrically conductive electrode substrate material; and (b) a surface treatment material on the electrode substrate material, the surface treatment material being made of a phenol resin series activated charcoal fiber satisfying predetermined characteristic such that a weight per unit area substantially equal to 100 g/m.sup.2 or more, pore diameter having a distribution peak in a range from 1.5 nm to 3.5 nm, a surface area of a part substantially equal to or more than 30 m.sup.2 /g occupied by pores whose diameters range from 1 nm to 11 nm, a whole relative surface area of the entire pore diameter ranging substantially equal to or more than 1500 m.sup.2 /g, a tensile strength substantially equal to or more than 294 MPa (30 kg/mm.sup.2) and a tensile modulus substantially equal to or less than 14710.5 MPa (1500 kg/mm.sup.2).

Abstract: Described is an electrode formed from a composition consisting essentially of a base resin polymer, carbon black and graphite, with adsorptive active carbon added thereto. The electrode is capable of suppressing halogen diffusion in the metal-halogen battery for improving its energy efficiency.