Abstract: The present invention provides a production method for a ?-1,3-glucan derivative, which is suitable for reducing a load on the environment. A production method for a ?-1,3-glucan derivative according to present invention includes performing an esterification reaction of ?-1,3-glucan at a temperature of 40° C. to 120° C. in the presence of an acid catalyst. In the production method for a ?-1,3-glucan derivative, for example, the esterification reaction is performed by bringing the ?-1,3-glucan into contact with acid anhydride.

Abstract: Techniques are described herein for providing an interactive interface for live streaming events. A user may view a broadcasted live streaming event via the interactive interface. A sub-group of participants of the live streaming event may be identified from a larger group of participants based at least in part on respective locations of respective computing devices of the sub-group participants. A graphical representation can be generated for the group using images of each of the sub-group participants. A selection of the sub-group can be received from the interactive interface and the graphical representation can be presented in response to receiving the selection. Various features of the interactive interface provide for a more enriching experience for both the performer(s) and viewing participants of the broadcasted live streaming event.

Abstract: Techniques are described herein for providing an interactive interface for live streaming events. A user may view a broadcasted live streaming event via the interactive interface. A sub-group of participants of the live streaming event may be identified from a larger group of participants based at least in part on respective locations of respective computing devices of the sub-group participants. A graphical representation can be generated for the group using images of each of the sub-group participants. A selection of the sub-group can be received from the interactive interface and the graphical representation can be presented in response to receiving the selection. Various features of the interactive interface provide for a more enriching experience for both the performer(s) and viewing participants of the broadcasted live streaming event.

Abstract: An image processing device has an extraction unit that extracts image data by using a predetermined sliding window in an original image; a learning unit that generates a prediction model by performing machine learning on learning data including the image data by using a teaching signal representing classification of the image data; and a select unit that selects, out of other image data different from the image data, another image data in which an error in classification based on the prediction model is larger than a predetermined threshold and adds the selected another image data to the learning data, and the learning unit updates the prediction model by repeating the machine learning in the learning data in which the another image data is added.

Abstract: An image processing device has an extraction unit that extracts image data by using a predetermined sliding window in an original image; a learning unit that generates a prediction model by performing machine learning on learning data including the image data by using a teaching signal representing classification of the image data; and a select unit that selects, out of other image data different from the image data, another image data in which an error in classification based on the prediction model is larger than a predetermined threshold and adds the selected another image data to the learning data, and the learning unit updates the prediction model by repeating the machine learning in the learning data in which the another image data is added.

Abstract: A high-quality flame-resistant fiber and carbon fiber at low costs in preparing a flame-resistant fiber and a carbon fiber by efficiently performing a flame retardation process in a short time as compared with a conventional technology are described. [1] If a polyacrylonitrile (PAN) polymer is degenerated with an oxidizing agent containing a thiolate compound and a nitrogen atom in a polymer, and the degenerated polymer is formed into threads so as to prepare a flame-resistant PAN fiber. [2] A flame-resistant PAN fiber is prepared by degenerating a PAN precursor fiber in a solution including a thiolate compound and an oxidizing agent containing a nitrogen atom. The flame-resistant PAN fiber obtained by the preparation method is heated at 300° C. or more to 3000° C. or less, and, thus, a carbon fiber having an excellent mechanical strength can be obtained.

Abstract: Technologies are disclosed herein for providing a media application service for predictive caching of media content on a mobile device. The media application service is configured to consider usage data related to media content playback by a user on one or more devices, a connectivity profile of the mobile device, and to generate a list of media content to cache on the mobile device when power and network connectivity requirements of the mobile device are met or exceeded.

Abstract: A high-quality flame-resistant fiber and carbon fiber at low costs in preparing a flame-resistant fiber and a carbon fiber by efficiently performing a flame retardation process in a short time as compared with a conventional technology are described. [1] If a polyacrylonitrile (PAN) polymer is degenerated with an oxidizing agent containing a thiolate compound and a nitrogen atom in a polymer, and the degenerated polymer is formed into threads so as to prepare a flame-resistant PAN fiber. [2] A flame-resistant PAN fiber is prepared by degenerating a PAN precursor fiber in a solution including a thiolate compound and an oxidizing agent containing a nitrogen atom. The flame-resistant PAN fiber obtained by the preparation method is heated at 300° C. or more to 3000° C. or less, and, thus, a carbon fiber having an excellent mechanical strength can be obtained.

Abstract: A thienopyrazine compound which is useful for an organic semiconductor material. An organic field effect transistor, which includes an organic semiconductor layer that is easily produced from an organic semiconductor material containing the thienopyrazine compound by a coating method or a printing method, and which exhibits high carrier mobility and high on/off current ratio; and an organic field effect transistor which has ambipolar characteristics. The thienopyrazine compound is represented by chemical formula (I): wherein Ar1 and Ar2 each represents an aryl group, and R1 and R2 each independently represents a hydrogen atom, an alkyl group or an aryl group; or alternatively R1 and R2 represent a group having a ring formed by combining R1 and R2 together.

Abstract: A thienopyrazine compound which is useful for an organic semiconductor material. An organic field effect transistor, which includes an organic semiconductor layer that is easily produced from an organic semiconductor material containing the thienopyrazine compound by a coating method or a printing method, and which exhibits high carrier mobility and high on/off current ratio; and an organic field effect transistor which has ambipolar characteristics. The thienopyrazine compound is represented by chemical formula (I): wherein Ar1 and Ar2 each represents an aryl group, and R1 and R2 each independently represents a hydrogen atom, an alkyl group or an aryl group; or alternatively R1 and R2 represent a group having a ring formed by combining R1 and R2 together.

Abstract: Conditions of an optical disc to be played are read out, and a linear velocity of the disc is calculated from the read out conditions. A table storing addresses of data recorded on the disc is made based on the calculated linear velocity, and a desired position on the disc is searched in accordance with the addresses stored in the table.