Youn-Woo
Youn Woo Kim, Seoul KR
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20090113538 | Method and system for controlling access for mobile agents in home network environments - Disclosed is a method and system for controlling access for a mobile agent in a home network environment. The method includes the steps of: issuing a role ticket to the mobile agent; verifying access authority to service requested by the mobile agent through the role ticket; and granting the mobile agent access authority to the service. Accordingly, a table for managing access authority of a user is distributed to devices, so that it is possible to provide the mobile agent access control method and system capable of minimizing network traffic in the home network environment. | 04-30-2009 |
Youn Woo Lim, Daejeon KR
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20080251236 | Air Conditioning System for Automotive Vehicles - An air conditioning system for automotive vehicles includes an air conditioning case having an internal passageway and an ionizer for emitting positive ions and negative ions into the internal passageway of the air conditioning case. The ionizer includes a main body and first and second discharge electrodes extending from the main body into the internal passageway in a spaced-apart relationship with each other. The air conditioning system further includes an electric short preventing arrangement for preventing moisture positioned in and around the first and second discharge electrodes from causing electric short between the first and second discharge electrodes. The electric short preventing arrangement comprises a water drainage rib for draining the moisture condensed in and around the first and second discharge electrodes to prevent the electric short between the first and second discharge electrodes. | 10-16-2008 |
Youn Woo Nam, Cheongju-Si KR
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20130266767 | ECO-FRIENDLY FOAMING SHEET - The present invention provides an eco-friendly foaming sheet. More particularly, the eco-friendly foaming sheet is fabricated using a biodegradable resin composition on a substrate, wherein the biodegradable resin composition is applied to the substrate sheet, a print layer is formed thereon, and the treated sheet is subjected to foaming. According to the present invention, without processes of preparing a sheet and foaming using a biodegradable resin, the biodegradable resin layer is directly applied to a substrate sheet as a subject to be used and foamed while forming a print layer, in addition, a chemical foaming agent and an eco-friendly plasticizer used together with the biodegradable resin are specifically defined to ensure desired flexibility, thereby fabricating an eco-friendly foaming sheet with high productivity. | 10-10-2013 |
20140050904 | BIODEGRADABLE SHEETS HAVING FOAMED LAYER - The present invention relates to sheets. The sheets include a base layer, a foamed layer formed on the base layer, a printed layer formed on the foamed layer, and a partially foamed layer formed on the printed layer. At least one layer of the foamed layer and the partially foamed layer includes a polylactic acid (PLA) resin. The sheets are biodegradable. | 02-20-2014 |
20140072782 | BIODEGRADABLE SHEETS - The present invention relates to sheets. The sheets include a base layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. The resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable. | 03-13-2014 |
20140329065 | BIODEGRADABLE SHEETS HAVING ADHESIVE LAYER - The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable. | 11-06-2014 |
20140370253 | BIODEGRADABLE PANELS - The present invention relates to panels. The panels include a panel layer and a printed layer formed on the panel layer. The panel layer includes a polylactic acid (PLA) resin. The panels are environmentally friendly and biodegradable. | 12-18-2014 |
Youn Woo Yun, Seoul KR
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20090003465 | Method of Keying for Broadcast Using Ofdm - A method of modulation, which is applied to a communication system transmitting data in one frequency band using at least two orthogonal subcarriers, is disclosed. The present invention includes the steps of adding information bits indicating an amplitude reference and a phase reference to an input bit sequence by a specific time interval unit and carrying out differential amplitude phase shift keying (DAPSK) on the input bit sequence using the amplitude and phase references. The present invention prevents the waste of power and bandwidth due to insertion of a plurality of pilot toes in the related art 1β-QAM system. | 01-01-2009 |
Youn-Woo Hong, Daegu KR
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20120094206 | Solid oxide fuel cells and manufacturing method thereof - Provided are a solid oxide fuel cell and a method of manufacturing the same. The solid oxide fuel cell in which at least one or more unit modules are stacked and integrated with each other includes first and second solid electrolyte layers in which each of the unit modules includes a plurality of fuel electrodes spaced a predetermined distance from each other and each having a strip shape and first and second supports each including a plurality of slits each having the same strip shape as that of each of the fuel electrodes. The first and second solid electrolyte layers overlap with each other on lower and upper sides of the first support so that the fuel electrodes face each other within the slits of the first support, and the second support overlaps with a lower side of the first or second solid electrolyte layer overlapping with the lower side of the first support so that the slits of the second support are disposed perpendicular to the slits of the first support. The slits of the first and second supports define fuel paths and air paths, respectively. | 04-19-2012 |
20120153237 | ZnO-Based Varistor Composition - Disclosed herein is a ZnO-based varistor composition including zinc oxide (ZnO) as a main component and a calcium (Ca)-containing compound as an accessory component. The varistor composition provides excellent electrostatic discharge (ESD) characteristics because it has excellent physical properties, such as a nonlinear coefficient, a clamping voltage ratio, a surge absorbance and the like, and, particularly, does not include Bi | 06-21-2012 |
Youn-Woo Kim, Gyeonggi-Do KR
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20090077642 | COOPERATION METHOD AND SYSTEM BETWEEN SEND MECHANISM AND IPSEC PROTOCOL IN IPV6 ENVIRONMENT - The present invention relates to a method of embodying a cooperation system between SEND and IPSec in an IPv6 environment. The cooperation system between SEND and IPSec in accordance with the present invention includes: receiving an authentication completion report message including a first IP address of a host whose authentication is completed by the SEND; generating new authentication information corresponding to the host and storing the new authentication information in a temporary storage area, if authentication information for the host is not present in the temporary storage area, wherein the authentication information includes the first IP address; and if an authentication check request message including a second IP address is received from the IPSec, checking whether the second IP address is present in the temporary storage area, and sending the result of checking to the IPSec. The present invention allows the authentication information shared between SEND and IPSec in a mobile environment, where the network is frequently accessed, enabling IPSec secure communication at a lower cost. | 03-19-2009 |
Youn-Woo Kim, Anyang-Si KR
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20100100941 | CONTEXT-AWARE ROLE-BASED ACCESS CONTROL SYSTEM AND CONTROL METHOD THEREOF - A context-aware role-based access control system and a control method thereof. The context-aware role-based access control system includes: a context-aware user assignment manager (CAUAM) for performing a role assignment function, a role delegation function, or a role revocation function for a user according to a context of the user, based on a preset context request condition; a context-aware permission assignment manager (CAPAM) for performing a permission modification, a permission restoration, and a personalized permission modification for a permission, which the role has, according to changes in the context of the user; an information repository for storing a user profile and context information; and an access control manager (ACM) for controlling the context-aware user assignment manager, the context-aware permission assignment manager, and the information repository, and processing an access control request. Accordingly, more efficient access control can be achieved in ubiquitous environments where the context of the user dynamically changes. | 04-22-2010 |
Youn-Woo Lee, Anyang-Si KR
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20140085423 | STEREO CAMERA APPARATUS FOR A MOBILE DEVICE, AND IMAGING METHOD THEREFOR - A method of shooting an OSMU stereoscopic image using a mobile stereoscopic camera is provided. The method includes an operation of placing the mobile stereoscopic camera on a predetermined location of a mobile shooting place, an operation of determining a focusing distance in a wide-angle shooting condition when a far point of the mobile stereoscopic camera is infinity, an operation of calculating a distance between two cameras of the mobile stereoscopic camera by setting the far point of the mobile stereoscopic camera to be infinity at a location of the mobile stereoscopic camera, an operation of adjusting the distance between the cameras of the mobile stereoscopic camera to be the calculated distance between the cameras of the mobile stereoscopic camera, and an operation of shooting the OSMU stereoscopic image using the mobile stereoscopic camera of which the distance between the cameras is adjusted. | 03-27-2014 |
Youn-Woo Lee, Seoul KR
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20120149896 | METHOD FOR SEPARATION OF HMX AND RDX - The present invention is directed to a method for effectively separating HMX and RDX from HMX/RDX-included explosives, respectively, without using a harmful organic solvent, the method capable of respectively separating HMX and RDX from HMX/RDX-included explosives by selectively dissolving RDX included in explosives by using a difference between solubility parameters of HMX and RDX with respect to compressed dimethylether. The present invention is further directed to an apparatus for respectively separating HMX and RDX from HMX/RDX-included explosives comprising a dimethylether supplying unit, an explosive particle dissolving unit, and an explosive particle collecting unit. | 06-14-2012 |
20120276385 | RECRYSTALLIZATION METHOD OF FINE SPHERICAL RDX PARTICLE - The present invention relates to a method for recrystallizing fine spherical cyclotrimethylenetrinitramine (Research Department Explosive, hereinafter, referred to as “RDX”) particles, and the method for recrystallizing fine spherical RDX particles according to the present invention may include (a) introducing a powder material containing RDX into a container, (b) introducing a dimethylether compressed gas into the container and dissolving the RDX to form a RDX solution, (c) releasing and decompressing the RDX solution into atmospheric pressure to form crystallized RDX particles, and (d) separating and collecting the RDX particles. | 11-01-2012 |
Youn-Woo Lee, Gyeonggi-Do KR
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20100231691 | OSMU (ONE SOURCE MULTI USE)-TYPE STEREOSCOPIC CAMERA AND METHOD OF MAKING STEREOSCOPIC VIDEO CONTENT THEREOF - A one source multi use (OSMU)-type stereoscopic camera is disclosed. The stereoscopic camera includes left and right cameras of which lenses are aligned with parallel optical axes, a separation adjustment unit for adjusting the separation between the cameras, a critical parallax computing unit, a camera separation computing unit, and an image storage unit. The critical parallax computing unit adjusts the focus of the stereoscopic camera to an object and determines the far point of an image so that a maximum critical parallax is computed based on a far point limit parallax of a medium-size display. The camera separation computing unit computes the separation between the optical axes based on the computed critical parallax and drives the separation adjustment unit. The image storage unit stores images photographed by the readjusted cameras. Therefore, stereoscopic video made according to the present invention may be viewed on various sizes of displays. | 09-16-2010 |