Abstract: Cooperation system and method using a peer-to-peer (P2P) protocol are provided. A terminal performing a cooperation process through the P2P protocol, includes: a cooperation control unit including a cooperation relation list, requesting a different terminal or terminal group to cooperate with the terminal with reference to the cooperation relation list when a cooperation process is requested, restoring an application context transmitted from the different terminal or terminal group, extracts an application context of the terminal when receiving a cooperation request, and providing the application context of the terminal to the different terminal or terminal group; an application cooperation execution unit cooperating with the different terminal or terminal group for the application based on the application context restored by the cooperation control unit; and a P2P communication unit transmitting and receiving the application context in a P2P manner by accessing the different terminal or terminal group.

Abstract: Provided are a system and method for providing a streaming-based portable application, which can add and update a portable application in one click, without separate procedures, by using advantages of application streaming while maintaining advantages of a portable application. In the system, a streaming server stores an application execution code provided at the inside of the system. A client provides a virtualization of an execution code necessary to execute an application process, streams an execution code from the streaming server through a network, and manages application streamed images.

Abstract: Provided are a method for providing a portable software computing environment and a portable storage device, which connect a computing environment in a low-speed portable storage device to a computer to provide it to a user. A portable software computing environment is changed into a file image to store the changed file image in a portable storage device. The file image of the portable storage device is copied in the storage of a host computer. An input/output request of an application operating in the portable software computing environment is intercepted, and a file is read from the file image copied in the storage of the host computer or a file is written in the copied file image. Changed information which is temporarily stored is reflected in the file image.

Abstract: Provided are a method and system for distributing bundled applications, which represent the installation and execution relationships of an application based on the work relevance and bundle corresponding applications together to distribute the bundled applications. A plurality of applications for distribution are converted into a plurality of distributable applications. A meta information file including information on installation and execution relationships of the distributable applications is generated. A bundled applications distribution copy including a plurality of distributable applications and the meta information file is generated and distributed.

Abstract: Provided are a portable computing system that allows computing operations anywhere an operating system (OS)-installed host computer exists by using a portable storage device storing a virtual machine, an OS image, a portable software image, etc. and a portable computing based system using the portable computing system. The portable storage device for supporting a portable computing system includes: a portable computing system storage storing portable software for running and operating of a portable computing system, wherein a user may not directly access the portable software for deletion and modification; a portable software storage storing portable software images usable in the portable computing system, wherein a user may not directly access the portable software images for deletion and modification; and a portable data storage capable of adding, deleting, and modifying data.

Abstract: A function unit generating apparatus and method for streaming software in a function unit are provided. The function unit generating apparatus includes a function filter, a page collector, and a software controller. The function filter generates function information about a function by analyzing events generated when the function of software is performed. The page collector creates page information about the function by collecting pages required for performing the function. The software controller executes each function of the software and creates a function unit for the function by mapping the function information and the page information, which are generated when the function is executed.

Abstract: Provided are an apparatus and method for providing a working environment migration service. The portable storage apparatus, includes: a management and execution unit for performing user authentication by connection to an external user terminal, managing a user profile and application information, and executing a context management unit; a working environment storage unit for storing an application context and data representing the working state at the time of log out; and the context management unit for recovering and executing the application context and data stored in the working environment storage unit upon execution by the management and execution unit, and collecting the application context and data representing the working state at the time of log out, and storing them in the working environment storage unit.

Abstract: Disclosed is a system and method for completely converting software into a form that can be used without an installation process by using an operating system and a converted software generating module which are disposed at a remote place. The software converting system for generating a converted software executable without being installed from an installation package of the target software includes: a clean operating system without software installation information for the target software; an installation module for installing the target software in the clean operating system by executing the installation package; a converted software generating module for generating the converted software for the target software by comparing the clean operating system before and after the installation of the target software; and a system communication module for receiving the installation package and transmitting the generated converted software to the user terminal.

Abstract: A system and method for providing streaming game software for a portable terminal are provided. The system includes a software producer, a service provider, a portable terminal, and a billing device. The software producer produces streaming software, and the service provider provides the software in a streaming mode. The portable terminal creates virtual computing resources by virtualizing and amplifying real computing resources for executing software and executes streaming software provided from the service provider based on the amplified virtual computing resource. The billing devices collects billing information, and calculates a cost according to a billing policy set based on the collected billing information.

Abstract: A method and apparatus for providing software by function units are provided. In the method, at the streaming client, a functional unit identification is created for identifying a function requested from a user by intercepting a request of a predetermined function in application software from a user. Then, it determines whether a functional unit corresponding to the created functional unit identification is streamed or not, and determines whether each of execution pages of the functional unit is streamed or not when the functional unit is not streamed. After determining, a streaming list is composed with execution pages that are not streamed based on the determination result. Then, a streaming service is requested by transmitting the composed streaming list to the streaming server, and execution pages transmitted from the streaming server are received and stored.

Abstract: Disclosed is a method of polymerization and copolymerization of ethylene, which is carried out in the presence of (a) a solid titanium complex catalyst prepared by the steps of (i) preparing a magnesium solution by contacting halogenated magnesium compounds with alcohol, (ii) reacting the magnesium solution with ester compound having at least one hydroxyl group and silicon compound having alkoxy group, (iii) preparing a solid titanium catalyst component by reacting mixture of titanium compound and haloalkane compound; and (iv) producing solid titanium complex catalyst by reacting the solid titanium catalyst component with mixture of aluminum compound and haloalkane compound, or with haloalkane; and (b) organometallic compounds in Group II or III of the Periodic Table.

Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and copolymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) an alkoxysilane compound and a haloalkne compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits a high activity and the polymers produced by the method of the present invention using said catalyst have the advantages of exhibiting a high bulk density and a narrow molecular weight distribution.

Abstract: Disclosed is a method of polymerization and copolymerization of ethylene, which is carried out in the presence of (a) a solid titanium complex catalyst prepared by the steps of (i) preparing a magnesium solution by contacting halogenated magnesium compounds with alcohol, (ii) reacting the magnesium solution with ester compound having at least one hydroxyl group and silicon compound having alkoxy group, (iii) preparing a solid titanium catalyst component by reacting mixture of titanium compound and haloalkane compound; and (iv) producing solid titanium complex catalyst by reacting the solid titanium catalyst component with mixture of aluminum compound and haloalkane compound, or with haloalkane; and (b) organometallic compounds in Group II or III of the Periodic Table.

Abstract: A method for polymerization and copolymerization of ethylene is disclosed. The polymerization is carried out in the presence of a preactivated titanium solid complex catalyst supported on a carrier containing magnesium. The resulting polymers have the advantage of high bulk density and broad molecular weight distribution.

Abstract: Disclosed are an apparatus and method for producing application software for a streaming service and a system and method for providing a software streaming service with network fault tolerance. The apparatus and method provide an executive code management technique for separating and streaming the software by functions, managing by functions the streamed executive codes from a streaming server, and supporting so that a user can use the application software in a limited manner even if a network fault occurs. The system and method provide a development tool that can develop software for proving the software streaming service that supports the network fault tolerance and streaming by functions.

Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with a phosphorus compound and a silicon compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound. The solid titanium complex catalyst for polymerization and copolymerization of ethylene according to present invention exhibits high polymerization activity, and may be advantageously used in the polymerization and copolymerization of ethylene to produce polymers of high bulk density and narrow molecular weight distribution.

Abstract: A method of making an olefin polymerization catalyst is disclosed. The method involves contacting a magnesium halide compound with an alcohol, adding a mineral oil to the product, reacting this product with a hydroxylated ester and an alkoxy silane, then adding a titanium compound and a second silicon compound. The titanium compound is preferably an alkoxy halide, and the second silicon compound is preferably a silicon halide.

Abstract: The present invention provides a method for producing a new catalyst of high polymerization activity for homo- or co-polymerization of ethylene, or more particularly a method for producing a titanium solid complex catalyst supported on a carrier containing magnesium, wherein said catalyst is capable of producing polymers of high bulk density and narrow particle size distribution with few fine particles.

Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and co-polymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) an alkoxysilane compound and a haloalkane compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits a high activity and the polymers produced by the method of the present invention using said catalyst have the advantages of exhibiting a high bulk density and a narrow molecular weight distribution.

Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with a phosphorus compound and a silicon compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound. The solid titanium complex catalyst for polymerization and copolymerization of ethylene according to present invention exhibits high polymerization activity, and can be advantageously used in the polymerization and copolymerization of ethylene to produce polymers of high bulk density and narrow molecular weight distribution.