Abstract: A method of distributedly storing data in a system comprising a plurality of edge nodes communicatively coupled to an end device and a central cloud. The method includes: receiving, by a first edge node, data transmitted by the end device; assigning, by the first edge node, a data tag to received data according to attributes of the received data and duplicating the received data to generate a tagged data copy; and transmitting, by the first edge node, the tagged data copy to at least one second edge node determined by a data distribution policy determined by the central cloud directly or through the central cloud, so that the at least one second edge node store the tagged data copy in a storage.

Abstract: A method of distributedly storing data in a system comprising a plurality of edge nodes communicatively coupled to an end device and a central cloud. The method includes: receiving, by a first edge node, data transmitted by the end device; assigning, by the first edge node, a data tag to received data according to attributes of the received data and duplicating the received data to generate a tagged data copy; and transmitting, by the first edge node, the tagged data copy to at least one second edge node determined by a data distribution policy determined by the central cloud directly or through the central cloud, so that the at least one second edge node store the tagged data copy in a storage.

Abstract: The present disclosure relates to a method for managing an object, an apparatus for the same, a computer program for the same, and a recording medium storing computer program thereof. A method for managing an object using a trace-identifier ID) according to the present disclosure may comprise: updating T-ID information for the object at a timepoint at which the object is saved after the object is opened at an endpoint; writing the updated T-ID information as metadata of the object; and transmitting the metadata including the T-ID information to a server.

Abstract: A method for controlling a gas turbine when the gas turbine is started may include measuring the number of rotations of the gas turbine, determining a target acceleration rate based on the number of rotations of the gas turbine, measuring a current acceleration rate, determining a flow rate of fuel based on a difference between the current acceleration rate and the target acceleration rate, and supplying fuel to the gas turbine at the determined flow rate. The flow rate of the fuel may be determined between a maximum flow rate of the fuel that has been previously stored and a minimum flow rate of the fuel. A temperature of the exhaust gas after controlling the flow rate of the fuel may be monitored.

Abstract: Disclosed are an apparatus and method for managing a digital copyright on electronic publication (EPUB)-based content and an apparatus and method for providing EPUB-based content according to a user's right. An encryption unit of the apparatus for managing digital copyright generates encrypted unit files by encrypting a plurality of unit files included in content in the form of a compressed archive including the plurality of unit files with different encryption keys, stores the encrypted unit files in a content database, generates mapping data by mapping the encryption keys to pieces of identification information of the encrypted unit files, and stores the mapping data in an encryption key database.

Abstract: Provided is a clipboard security system and method for improving security of data transmission made through a clipboard which is frequently used in utilization of a computer. An example of the clipboard security system includes a clipboard managing unit for storing data in a clipboard or extracting data from the clipboard in response to a request from one or more objects, in which the clipboard managing unit includes a data encrypting unit for encrypting the data for which storage is requested according to a trust relationship of an object which desires to store the data in the clipboard and a data decrypting unit for decrypting the encrypted data according to a trust relationship of an object which desires to extract the encrypted data stored in the clipboard.

Abstract: A method for controlling a gas turbine when the gas turbine is started may include measuring the number of rotations of the gas turbine, determining a target acceleration rate based on the number of rotations of the gas turbine, measuring a current acceleration rate, determining a flow rate of fuel based on a difference between the current acceleration rate and the target acceleration rate, and supplying fuel to the gas turbine at the determined flow rate. The flow rate of the fuel may be determined between a maximum flow rate of the fuel that has been previously stored and a minimum flow rate of the fuel. A temperature of the exhaust gas after controlling the flow rate of the fuel may be monitored.

Abstract: The present invention relates to an apparatus and a method for managing digital rights using virtualization technique, and more particularly to an apparatus and a method for enabling a user to access a desired text file in an independent area through a virtual machine corresponding to a licensed right for accessing the text file. The present invention comprises a virtual machine (VM) management unit for controlling a user access authorization function for accessing the text file in the area to which the virtualization technique is applied.

Abstract: Disclosed are an apparatus and method for managing a digital copyright on electronic publication (EPUB)-based content and an apparatus and method for providing EPUB-based content according to a user's right. An encryption unit of the apparatus for managing digital copyright generates encrypted unit files by encrypting a plurality of unit files included in content in the form of a compressed archive including the plurality of unit files with different encryption keys, stores the encrypted unit files in a content database, generates mapping data by mapping the encryption keys to pieces of identification information of the encrypted unit files, and stores the mapping data in an encryption key database.

Abstract: Disclosed are an apparatus and method for generating an electronic book (e-book) and an apparatus and method for verifying integrity of an e-book. An e-book including information for verifying the integrity of the e-book is generated, and the integrity of an e-book is verified from information included in the e-book to determine whether or not the e-book has been falsified. Accordingly, an e-book is generated to conform to the electronic publication (EPUB) standard and to include information for protecting the copyright of the e-book, so that the e-book market can be activated.

Abstract: Disclosed are a malicious code real-time inspecting device in a DRM environment and a recording medium for recording a program to execute a method thereof. A DRM module performs decryption and encryption during file reading/writing operations through a handle after confirming user rights relating to a file on the basis of a handle of a file having DRM applied when an execute command is inputted, outputs an inspection request message including a handle and a path of a file, and determines whether to perform an open operation of a file according to a malicious code inspection result on a file. A malicious code inspecting module inspects whether an original file, which is to be decrypted and read by the DRM module, is infected by malicious code or not on the basis of a handle and a path of a file in an inspection request message delivered from an interface module. According to the present invention, whether a document encrypted with DRM applied is infected by malicious code is inspected and treated in real-time.

Abstract: Provided is a clipboard security system and method for improving security of data transmission made through a clipboard which is frequently used in utilization of a computer. An example of the clipboard security system includes a clipboard managing unit for storing data in a clipboard or extracting data from the clipboard in response to a request from one or more objects, in which the clipboard managing unit includes a data encrypting unit for encrypting the data for which storage is requested according to a trust relationship of an object which desires to store the data in the clipboard and a data decrypting unit for decrypting the encrypted data according to a trust relationship of an object which desires to extract the encrypted data stored in the clipboard.

Abstract: The present invention relates to an apparatus and a method for managing digital rights using virtualization technique, and more particularly to an apparatus and a method for enabling a user to access a desired text file in an independent area through a virtual machine corresponding to a licensed right for accessing the text file. The present invention comprises a virtual machine (VM) management unit for controlling a user access authorization function for accessing the text file in the area to which the virtualization technique is applied.

Abstract: The present invention provides a cross-flow type drying apparatus for a pet, that is capable of quickly performing drying by blowing air uniformly on the entire body of a pet and simultaneously facilitating drying by reducing the amount of stress that a pet is subjected to. The cross-flow type drying apparatus includes: a main body case defining an outlet and an inlet and including a heating member installed within; a cross-flow fan installed in a longitudinal direction within the main body case to rotate; and a stand coupled to enable the main body case to pivot to a predetermined angle. This configuration can reduce drying time and easily perform drying the pet, and can lower manufacturing cost to reduce the financial burden placed on a user.

Abstract: Disclosed are an ionic polymer metal composite electrolyte for a fuel cell and a method of preparing the same. In detail, the invention provides an ionic polymer metal composite electrolyte for a fuel cell, in which an ionic polymer metal composite, in which platinum nanoparticles are dispersed in a Nafion membrane, is used as an electrolyte, in place of the Nafion membrane alone, upon the fabrication of a fuel cell having a polymer electrolyte, and also provides a method of preparing the same. The ionic polymer metal composite electrolyte of the invention can solve problems related to the cross-over of a conventional Nafion membrane, and thereby can be used as the polymer membrane of a methanol direct fuel cell, having improved open-circuit voltage.

Abstract: Disclosed is an orthodontic implant having a head part formed at an upper end thereof, a connection part for connection of an elastic member, a tool engagement part for engagement of a tool, a uniform diameter part, and a screw part having a predetermined length to be driven into an alveolar bone, which are sequentially formed in a downward direction. The screw part of the present invention has a sectional shape of an inverted cone which is widened at an upper end thereof and pointed at a lowered end thereof, and a pre-selected upper portion of a thread of the screw part, which portion corresponds to one or more leads of the thread, is formed to have a flattened crest of a predetermined width, and the remaining portion of the threads of the screw part are formed to have sharp-edged crest.

Abstract: A method and apparatus for a composite video apparatus can reduce or prevent an image distortion of a composite video apparatus. When a progressive scanning video signal of the composite video apparatus is output to a display device, an on-screen display signal indicating the progressive scanning video signal is generated and output to the display device.

Abstract: An implant for teeth orthodontics to fix firmly the orthodontic appliance ligated to malaligned teeth, to decide freely the pulling direction of a bracket mounted on malaligned teeth, and to minimize the size of the exposed part of an implant after implanting into dentine of teeth. The present invention is composed of a screw part at its bottom side to be implanted into dentine of teeth, a plain part at its middle side to be contacted with gingival tissue, and a head part at its upper side having a groove for manipulation of the implant by tools, a wire slot for a wire to be inserted therein, and a ligation part for a wire to be ligated.

Abstract: A wafer fixing unit of a FIB (Focused Ion Beam) apparatus, for maintaining the flat zone of a wafer in accurate horizontal alignment, includes a fixed frame in a horizontal plane, having a pair of side plates and a forward plate. A first member is composed of a flat rectangular plate in the horizontal plane having a rectangular depression in a forward section, movably disposed between the pair of side plates and rearward of the forward plate. A second member is defined by a T-shape, arranged substantially parallel and above the horizontal plane wherein a narrow end of the T-shape is connected to the first member and the narrow end fits in the rectangular depression. The second member is movably disposed above the forward plate and has a plurality of projecting parts disposed substantially perpendicular to the horizontal plane for contacting and securing a wafer.

Abstract: A disc clamping apparatus for a compact disc player. The apparatus has a clamp for clamping a disc loaded on a turntable, an elastic wire for upwardly lifting the clamp and for horizontally maintaining the clamp above the turntable, a pair of extension bars connected to a spring to downwardly bias the elastic wire, and a serpentine bar which makes contact with an upper surface of the clamp to allow the clamp to stably rotate. The apparatus does not make contact with the disc while the disc is being inserted/ejected into/from the disc player, so damage to the disc or to the clamp can be prevented. Since the clamp is horizontally maintained above the turntable by the elastic wire, the clamp does not fluctuate while a user is driving the vehicle, so the clamp is prevented from colliding with a cover plate, thereby reducing the noise.