Abstract: Provided is a process for adsorptive separation of p-xylene from an aromatic hydrocarbon mixture comprising other isomers of xylene, and a device used therein. More specifically, the present invention provides a separation process employing simulated moving bed (SMB) adsorptive chromatography, characterized by pretreating a fluid mixture, i.e. the feed, by using single adsorption chamber so as to raise the concentration of a component to be separated, and then carrying out the simulated moving bed adsorptive separation, thereby improving productivity, and a device used therein.

Abstract: Disclosed is a method for separating aromatic compounds using a simulated moving bed (SMB) operation, characterized by injecting each raw material having a different composition into each different part of an adsorption chamber so as to improve the recovery rate. More specifically, the present invention provides a method for separating aromatic compounds for improving p-xylene separation in a p-xylene separation process, by injecting a high p-xylene mixture from selective toluene disproportionation process (STDP) and low p-xylene mixture from other processes (for example, processes of reformer, isomerization reactor and transalkylation of aromatics having 9 carbon atoms) into each different part of an adsorption chamber.

Abstract: A thin film transistor substrate and a method for manufacturing the same are provided. The thin film transistor substrate has a display area and a pad area defined in the vicinity of the display area, and includes a signal line formed in the display area and a signal pad formed in the pad area, and at least one connecting line which connects the signal line and the signal pad and includes a first line and a second line disposed on the first line. In addition, at least one of the first line and the second line has centrally isolated, spaced apart stepped structures.

Abstract: The present invention relates to a data processing apparatus provided with a multi-graphic controller and a data processing method using the data processing apparatus. A data processing apparatus of the present invention comprises a first graphic controller 10a and a second graphic controller 20 for processing and displaying inputted image data; and a control unit 50 for distributing the image data in consideration of data processing capabilities of the first and second graphic controllers 10a and 20. According to the present invention, there is provided a data processing apparatus and method capable of simultaneously using a plurality of graphic controllers, so that data processing speed can be improved. Image data are appropriately distributed, whereby the efficiency of data processing can be enhanced.

Abstract: A method for continuous ethylene polymerization under high pressure using a polymerization reaction zone comprises a primary reaction zone and a secondary reaction zone wherein the secondary reaction zone has a length of 1.5-6.5 times the length of the primary reaction zone and a cross-sectional area of 1.2-4 times the cross-sectional area of the primary reaction zone. Ethylene is fed continuously into the primary reaction zone at the starting point of the primary reaction zone. Low temperature initiator alone, or an initiator mixture containing mainly low temperature initiator is introduced into the primary reaction zone at the starting point of the primary reaction zone. Initiator alone or an initiator mixture is introduced into the secondary reaction zone at two or more different points of the secondary reaction zone. Ethylene polymer products of various physical properties are produced with high productivity, while the pressure drop is minimized.

Abstract: Disclosed is a simulated moving bed (SMB) adsorptive separation system in which at least one component of a fluid mixture is brought into contact with a solid adsorbent and the adsorbed component is desorbed with a desorbent, wherein the improvement comprises an inert ball layer is formed on the upper part of the solid absorbent filled in the simulated moving bed.

Abstract: Provided is a process for adsorptive separation of p-xylene from an aromatic hydrocarbon mixture comprising other isomers of xylene, and a device used therein. More specifically, the present invention provides a separation process employing simulated moving bed (SMB) adsorptive chromatography, characterized by subjecting the extracts eluted from a plurality of adsorption chambers arranged in parallel, to a crystallizer for additional separation, thereby improving productivity, and a device used therein.

Abstract: A display apparatus includes a display panel having a signal pad section that receives image signals and provides the image signals to a signal line, and a conductive bonding member that is interposed between the signal pad section and a driver. The conductive bonding member is cured by light incident through an opening in the signal pad section and the heat generated as the light is absorbed in the signal pad section. The temperature difference between the display panel and the driver is reduced, so that the display is prevented from being bent, and the yield of products and the productivity are improved.

Abstract: In a wireless local area network, a battery status of a mobile device is determined, battery status data based upon the battery status is generated, and a listen interval between a mobile device and an access point is adjusted based upon the battery status. Listen interval data is generated based upon the listen interval, an association request frame is wirelessly transmitted from the mobile device to the access point during the listen interval. The association request frame includes the battery status data and/or the listen interval data.

Abstract: A system and method of providing a Push To All (PTA) service enables a PTA service terminal having limited resources to efficiently perform a multi session, while performing a PTA service such as Push To Talk (PTT), Push To Video (PTV) or Message Session Relay Protocol (MSRP) with a second PTA terminal via an already established session, by rejecting another session requested by a third terminal upon a service type of the session being the same as a service type of the already established session, and by accepting the session upon the service type of the session being different from the already established session.

Abstract: In a system and method of providing different Push-To-All (PTA) services using one session, when a PTA terminal intends to receive a Message Session Relay Protocol (MSRP) service while performing a Push-To-Talk (PTT) service or a Push-To-Video (PTV) service through a previously established PTA session, the PTA terminal requests the MSRP service using Floor Control Protocol (FCP) without establishment of a separate session, and additionally receives the MSRP service using the previously established session. This reduces a waste of resources and overhead caused by repeated session management.

Abstract: A Push-To-All (PTA) service system and method provides additional information. A PTA server provided with the additional information of a PTA terminal having the floor in a session from the corresponding PTA terminal through a TBCP_REQUEST message provides the additional information to other PTA terminals participating in the session through a TBCP_TAKEN message. The other PTA terminals are thereby provided with various pieces of information about the PTA terminal having the floor.

Abstract: In a Push-To-All (PTA) service system and method enabling selective designation of data transmission targets, a transmitting PTA terminal requests a selective data transmission to a PTA server using a receiver-designated Talk Burst Control Protocol (TBCP) message containing information about some receiving PTA terminals participating in the same session as the transmitting PTA terminal, and the PTA server transmits data received from the transmitting PTA terminal to designated receiving PTA terminals by referring to the information contained in the receiver-designated TBCP message. Thus, a selective data transmission can be performed within one PTA session.

Abstract: In a drive IC and a display device having the same, the drive IC includes a plurality of bumps disposed on a lower surface of the drive IC and aligned in a plurality of rows along an edge of the drive IC. The bumps aligned in different rows from each other are juxtaposed in a direction perpendicular to a direction in which the bumps are aligned. Accordingly, when the drive IC is mounted on a display panel using an anisotropic conductive film, the anisotropic conductive film may be smoothly flowed through a space defined by the bumps of the drive IC, thereby improving electric properties of the drive IC and display device.

Abstract: Provided is a process for adsorptive separation of p-xylene from an aromatic hydrocarbon mixture comprising other isomers of xylene, and a device used therein. More specifically, the present invention provides a separation process employing simulated moving bed (SMB) adsorptive chromatography, characterized by pretreating a fluid mixture, i.e. the feed, by using single adsorption chamber so as to raise the concentration of a component to be separated, and then carrying out the simulated moving bed adsorptive separation, thereby improving productivity, and a device used therein.

Abstract: In a drive IC and a display device having the same, the drive IC includes a plurality of bumps disposed on a lower surface of the drive IC and aligned in a plurality of rows along an edge of the drive IC. The bumps aligned in different rows from each other are juxtaposed in a direction perpendicular to a direction in which the bumps are aligned. Accordingly, when the drive IC is mounted on a display panel using an anisotropic conductive film, the anisotropic conductive film may be smoothly flowed through a space defined by the bumps of the drive IC, thereby improving electric properties of the drive IC and display device.

Abstract: In a system and method of providing Voice over Internet Protocol (VoIP) service, when a wireless terminal and a VoIP service terminal are connected on a VoIP service dedicated line, and the wireless terminal transmits to the VoIP service terminal a message requesting call connection to a destination Internet Protocol (IP) terminal, the VoIP service terminal connects the call to the destination IP terminal according to the call connection request message, and transceives a voice packet according to different codec information between the wireless terminal and the VoIP service terminal.

Abstract: The object of this invention is to provide a method of producing a bio-diesel oil in a great amount in a relatively short time, in which oil/fat and alcohol, used as reactants, are homogeneously mixed with each other to form a single liquid phase mixture which effectively react with each other. The method includes transesterifying the oil/fat and alcohol in the presence of alkyl ester. Additionally, in the method, alkyl ester is added to a mixture of the oil/fat and alcohol by refluxing alkyl ester as a product to the mixture. Furthermore, the method includes (a) an acidic catalyst, and (b) transesterifying the pre-esterified oil/fat with alcohol in the presence of alkyl ester.

Abstract: A system and method for providing a service in a user-selected communication mode in an IP multimedia communication system are provided. In a method of providing a service between a calling terminal and a called terminal in a communication system including a plurality of calling and called terminals and a network server, the calling terminal transmits a request message containing predetermined information for a call connection to the called terminal. The called terminal analyzes the information of the request message and transmitting a response message containing accept information for the request message to the calling terminal. The calling and called terminals perform bi-directional communications by changing a current communication mode in response to the response message.

Abstract: A method for exchanging media description information between user agents using a session initiation protocol (SIP) comprises the steps of: providing information on an OS and sound module of a first user agent so that the first user agent generates, in a media description field of a session description protocol (SDP), an SIP message including the information on the OS and sound module of the first user agent, and sends it to a second user agent; and setting a processing format for voice data of the second user agent so that the second user agent determines the voice data format supportable by the first user agent from the information on the OS and sound module of the first user agent, compares it with the voice data format supportable by the second user agent, and sets a format commonly supportable by the first and second user agents as the voice data format of the second user agent.