Abstract: The content recommendation system that acquires attribute information of a given user, acquires at least one list from among lists of content sequentially generated over time on the basis of the attribute information of the given user, acquires user preference information, which is feature information of content preferred by the given user, extracts some content from content included in the list acquired on the basis of the user preference information, and presents the content to the given user.

Abstract: The content recommendation system includes a user attribute information acquisition means for acquiring attribute information of a given user, a list acquisition means for acquiring at least one list from among lists of content sequentially generated over time on the basis of the attribute information of the given user acquired by the user attribute information acquisition means, a user preference information acquisition means for acquiring user preference information, which is feature information of content preferred by the given user, a content extraction means for extracting some content from content included in the list acquired by the list acquisition means on the basis of the user preference information acquired by the user preference information acquisition means, and a content presentation means for presenting the content extracted by the content extraction means to the given user.

Abstract: The content recommendation system includes a user attribute information acquisition means for acquiring attribute information of a given user, a list acquisition means for acquiring at least one list from among lists of content sequentially generated over time on the basis of the attribute information of the given user acquired by the user attribute information acquisition means, a user preference information acquisition means for acquiring user preference information, which is feature information of content preferred by the given user, a content extraction means for extracting some content from content included in the list acquired by the list acquisition means on the basis of the user preference information acquired by the user preference information acquisition means, and a content presentation means for presenting the content extracted by the content extraction means to the given user.

Abstract: Provided is an underwater posture stabilization system which, by being attached to various underwater equipment such as undersea equipment and underwater vehicles having different shapes and positions of the center of gravity according to their purpose and the like, allows simply and reliably setting their posture in water (basic posture), is excellent in versatility, is not only excellent in posture stability since, when the posture inclines under the effect and the like of tidal currents and pulsating currents, a moment to restore the posture to its original posture naturally acts, but is also capable of easily changing the posture as needed, and also is capable of stably controlling the posture even in the presence of complicated tidal currents and pulsating currents, and is excellent in reliability, stability, and certainty of posture control.

Abstract: A content presentation device including a presentation screen production unit for producing display data related to a presentation screen on which images representative of a subset of contents among a plurality of contents together with a mutual relationship among the subset are shown, based on presentation data stored in a presentation data storage memory, the presentation storage memory storing plural kinds of presentation data based on any of which display data about the presentation screen is produced; and an instruction determination unit for determining whether a switching instruction for switching the presentation screen is input while the presentation screen is displayed, the switching instruction designating one of the contents represented by one of the images shown on the presentation screen, where the presentation screen production unit displaying an image representative of the one of the contents designated by the switching instruction at a predetermined position of the presentation screen.

Abstract: There is provided an information processing apparatus including an acquisition unit acquiring information showing at least one of an indicated party, who is a person or group indicated by a user, and indicated content, which is content indicated by the user, and a recommendation unit recommending, to the user, content that is similar to at least one of content related to the indicated party, the indicated content, and content liked by the user.

Abstract: The content recommendation system includes a user attribute information acquisition means for acquiring attribute information of a given user, a list acquisition means for acquiring at least one list from among lists of content sequentially generated over time on the basis of the attribute information of the given user acquired by the user attribute information acquisition means, a user preference information acquisition means for acquiring user preference information, which is feature information of content preferred by the given user, a content extraction means for extracting some content from content included in the list acquired by the list acquisition means on the basis of the user preference information acquired by the user preference information acquisition means, and a content presentation means for presenting the content extracted by the content extraction means to the given user.

Abstract: A content recommendation device includes: a use information storage section storing types of information related to use as information related to use of content by a user; a recommended content deciding section deciding content to be recommended to the user in accordance with each of the types of information related to use as a recommended content, and deciding types of recommended content items corresponding to the types of information related to use; a switching rule storage section storing a switching rule setting a period for switching the type of the recommended content as a rule set by a regional manager who is in charge of selling content in a specific region; a selection section selecting one type of the recommended content among the types of recommended content items when a recommended content suggestion request is generated from a terminal of the user residing in the specific region, and sequentially selecting different types of content after the period set by the switching rule; and a recommended i

Abstract: A content recommendation device deciding content to be recommended to a user among a plurality of content items includes: a clustering section creating a cluster set including clusters by clustering use statuses of content of users on the basis of a predetermined index; an effectiveness determining section determining effectiveness of the clustering by evaluating a correlation between the content and the cluster in the cluster set; a popular content deciding section selecting the cluster to which the user who becomes a recommendation partner belongs from the cluster set and deciding the popularity degree of each content item in accordance with the use status of each content item by the users in the cluster; and a recommended content deciding section evaluating the popularity degree of each content item in the cluster to which the user who becomes the recommendation partner belongs by taking into account and estimating the effectiveness of the cluster set therein and deciding the relatively popular content ite

Abstract: Disclosed is a process for producing an ortho-metalated 1:3 complex of iridium with homoligands which is useful as a luminous material for an organic EL device in high yield at high purity in a short time by a simple procedure. An example of the complex is tris(2-phenylpyridine)iridium(III) and this complex can be produced by reacting iridium(III) acetylacetonate with an organic ligand consisting of 2-phenylpyridine in the copresence of an acidic substance, either an organic acid such as tartaric acid or an inorganic acid such as phosphoric acid.

Abstract: Provided is an underwater posture stabilization system which, by being attached to various underwater equipment such as undersea equipment and underwater vehicles having different shapes and positions of the center of gravity according to their purpose and the like, allows simply and reliably setting their posture in water (basic posture), is excellent in versatility, is not only excellent in posture stability since, when the posture inclines under the effect and the like of tidal currents and pulsating currents, a moment to restore the posture to its original posture naturally acts, but is also capable of easily changing the posture as needed, and also is capable of stably controlling the posture even in the presence of complicated tidal currents and pulsating currents, and is excellent in reliability, stability, and certainty of posture control.

Abstract: A method for producing a carburized part by carburizing a steel member under a vacuum in a decompression furnace while feeding carburizing gas comprises a step for forming an oxide film on at least a part of a surface of the steel member, a step for generating carbon by reducing the oxide film with the carburizing gas, and a step for carburizing the surface of the steel member under a vacuum by diffusing the carbon.

Abstract: A bearing seal that is designed so that it can be mounted between one element and the other element of a bearing rotating relative to each other, thereby sealing the bearing. The bearing seal includes a seal ring and a seal body. The seal ring and seal body being adapted to be fitted on and secured to the one element and other element of the bearing rotating relative to each other, respectively. The seal ring includes a first cylindrical portion extending in the axial direction of the bearing and adapted to be fitted on and secured to the peripheral wall of the one element rotating relative to the other element of the bearing, a flange portion extending from the first cylindrical portion toward the radial direction, and a second cylindrical portion extending from the forward end side of the flange portion toward the axial direction of the bearing.

Abstract: Disclosed are an aluminum chelate complex capable of stabilizing the degree of vacuum in a film-forming chamber in the vapor deposition step and producing efficiently a high-quality organic EL device which shows excellent reliability and durability in practical use and an organic EL device using the said aluminum chelate complex. The aluminum chelate complex useful as an organic EL material is represented by L1Al(L2)2, contains 0.6 mol % or less of a complex represented by Al(L2)3, and is obtained by reacting an aluminum alkoxide with a quinolinol derivative and then with a phenolic compound and purifying the resulting complex to a high degree. In the formulas, L1 denotes a phenolate ligand and L2 denotes a substituted quinolinolate ligand.

Abstract: A steel strip made of martensitic steel contains C+N at not more than 0.12 wt %, Si at not more than 1 wt %, Mn at not more than 7 wt %, Ni at 2 to 24 wt %, Cr at 2 to 16 wt %, Mo at not more than 2.5 wt %, and Ni-Bal value and Ms value defined by the following equations shown by weight percentage of each composition are respectively Ni-Bal?1.2, Ms??28. Ni-Bal=Ni+0.5Mn+30(C+N)?1.1(Cr+1.5Si)+8.

Abstract: Disclosed is a process for producing an ortho-metalated 1:3 complex of iridium with homoligands which is useful as a luminous material for an organic EL device in high yield at high purity in a short time by a simple procedure. An example of the complex is tris(2-phenylpyridine)iridium(III) and this complex can be produced by reacting iridium(III) acetylacetonate with an organic ligand consisting of 2-phenylpyridine in the copresence of an acidic substance, either an organic acid such as tartaric acid or an inorganic acid such as phosphoric acid.

Abstract: A method for producing a carburized part by carburizing a steel member under a vacuum in a decompression furnace while feeding carburizing gas comprises a step for forming an oxide film on at least a part of a surface of the steel member, a step for generating carbon by reducing the oxide film with the carburizing gas, and a step for carburizing the surface of the steel member under a vacuum by diffusing the carbon.

Abstract: To selectively display a presentation screen exhibiting a mutual content relationship according to a plurality of criteria, so that the user can readily find their desired content. A presentation screen production unit (42) produces display data about a presentation screen on which images representative of any subset of contents among a plurality of contents together with a mutual relationship among the subset are shown, based on any kind of presentation data stored in presentation data storage means, the presentation storage means storing plural kinds of presentation data based on any of which display data about the presentation screen is produced. An instruction determination unit (41) determines whether or not a switching instruction for switching the presentation screen is issued while the presentation screen is displayed, the instruction including a designation of one of the contents represented by the images shown on the presentation screen.

Abstract: A bearing seal that is designed so that it can be mounted between one element and the other element of a bearing rotating relative to each other, thereby sealing the bearing. The bearing seal includes a seal ring and a seal body. The seal ring and seal body being adapted to be fitted on and secured to the one element and other element of the bearing rotating relative to each other, respectively. The seal ring includes a first cylindrical portion extending in the axial direction of the bearing and adapted to be fitted on and secured to the peripheral wall of the one element rotating relative to the other element of the bearing, a flange portion extending from the first cylindrical portion toward the radial direction, and a second cylindrical portion extending from the forward end side of the flange portion toward the axial direction of the bearing.

Abstract: In the present invention, after a nitriding process is performed on a steel, a passivating process in which the steel is heated under an atmosphere containing oxygen is performed. The heating condition of the passivating process is within a range surrounded by (100° C., 120 min), (100° C., 10 min), (125° C., 5 min), (190° C., 5 min), (200° C., 10 min), (200° C., 20 min), (190° C., 30 min), (190° C., 40 min), (180° C., 60 min), and (180° C., 120 min) on coordinate axes of temperature and time. In the process for production of the nitrided steel, uniform passivated layer can be easily formed, and fatigue strength is improved as pitting corrosion resistance is improved.