Patent application number | Description | Published |
20100330449 | FUEL CELL SYSTEM AND STACK THEREOF - A fuel cell system includes a fuel supply, an air supply, a plurality of unit cells being stacked, and a stack. The stack includes: a plurality of unit cells, each comprising separators and a membrane assembly (MEA) disposed between the separators; a fuel inlet configured to introduce a fuel to the unit cell; an unreacted fuel outlet configured to emit unreacted fuel from the stack; a fuel bypass path; a fuel distribution path configured to distribute the fuel to each of the unit cells; and an unreacted fuel inducing path configured to channel the unreacted fuel to the unreacted fuel outlet. | 12-30-2010 |
20110039179 | FUEL CELL STACK AND FUEL CELL SYSTEM USING THE SAME - A fuel cell stack that includes: stacked cells that generate electricity; an exchange plate disposed at a first side of the stacked cells, having a channel in fluid communication with an injection flow path and a discharge flow path, which extend between the cells; and a pump that is disposed at an opposing second surface of the stacked cells, to force coolant (air) through the injection flow path, the exchange plate, and the discharge flow path. | 02-17-2011 |
20140006476 | METHOD FOR PROVIDING N-SCREEN SERVICE USING VIRTUAL AGGREGATION GATEWAY | 01-02-2014 |
20140344933 | METHOD AND APPARATUS FOR DETECTING AN INTRUSION ON A CLOUD COMPUTING SERVICE - Provided is a method and apparatus for detecting an intrusion in a cloud computing service. An elementary detector may monitor a virtual machine provided by a cloud computing service, and may generate a raw alert based on a result of the monitoring. An intrusion detection system (IDS) dispatcher may determine occurrence of an intrusion into the cloud computing service by comparing the raw alert and a local database. The IDS dispatcher may generate a hyper alert when it is determined that the intrusion has occurred. An intrusion detection system (IDS) manager may determine the occurrence of the intrusion by comparing the hyper alert and a global database. | 11-20-2014 |
20150046971 | METHOD AND SYSTEM FOR ACCESS CONTROL IN CLOUD COMPUTING SERVICE - Provided is a method and system for assigning a suitable right to a user through a security policy based access control in a computing service. A collaborative service server may authenticate a user through a cloud service server, and may issue an access token including user authentication information and user right information. The cloud service server may compare information associated with the access token and an access control list and may determine whether to authorize an access of the user to the service based on the comparison result. | 02-12-2015 |
Patent application number | Description | Published |
20080311463 | MEMBRANE ELECTRODE ASSEMBLY WITH MULTILAYERED CATHODE ELECTRODE FOR USING IN FUEL CELL SYSTEM - A membrane electrode assembly in a fuel cell system includes a cathode electrode that includes a support layer; a catalyst layer; and a first carbon layer and second carbon layer between the support layer and the catalyst layer, the first carbon layer having a relatively higher porosity and the second carbon layer having a relatively lower porosity. Therefore, the membrane electrode assembly maintains good ion conductivity in the polymer electrolyte membrane by suppressing the movement of water molecules from the polymer electrolyte membrane to the cathode electrode using a water pressure between two carbon layers having different porosity. Also, a flooding phenomenon in the cathode electrode is prevented, thereby maintaining the smooth movement of the oxidizing agent in the cathode. | 12-18-2008 |
20090110986 | Method and apparatus for managing fuel cell performance and direct methanol type fuel cell using the method - The present embodiments relate to a method and an apparatus for managing fuel cell performance and a direct methanol type fuel cell using the method, capable of setting an activation time point to a user's use time point and spontaneously performing performance recovery during long time use thereof. | 04-30-2009 |
20090191433 | FUEL CELL SYSTEM AND OPERATING METHOD THEREOF - A fuel cell system operating method in which a temperature of a fuel cell power generator is measured when the fuel cell power generator stops generating power, and it is determined whether the temperature is within a predetermined temperature range, and a reverse current is supplied to the fuel cell power generator upon restart if the temperature was determined to be outside of the predetermined range so as to increase the efficiency of the system after restarting the fuel cell power generator after being exposed to extreme conditions. Subsequently, the reverse current supply to the fuel cell power generator stops and electric energy is generated through an electrochemical reaction between hydrogen and oxygen in the fuel cell power generator. | 07-30-2009 |
20100136377 | FUEL CELL SYSTEM AND DRIVING METHOD THEREOF - A method of driving a fuel cell system according to embodiments of the present invention includes supplying a first amount of oxidizer (which is less than a normal amount of oxidizer) to a fuel cell stack while continuously supplying fuel to the fuel cell stack, supplying a second amount of oxidizer (which is more than the normal amount) to the fuel cell stack, and supplying a third amount of oxidizer (which is the normal amount of oxidizer supplied in a normal driving state) to the fuel cell stack. | 06-03-2010 |
20100159296 | Fuel cell system and driving method thereof - Disclosed are a fuel cell system, and a method of driving the system. The fuel cell system includes a fuel cell stack having a plurality of unit cells producing electricity, a switching unit connecting the plurality of unit cells to a discharge resistor, a switching controller synchronously operated when the voltage of the fuel cell stack reaches an open circuit voltage after power generation of the fuel cell stack is stopped. The switching controller generates select control signals to control the switching unit. The fuel cell system further includes a sensing unit measuring respective cell voltages of the plurality of unit cells and generating cell voltage sensing signals to control activation periods of the select control signals. | 06-24-2010 |
20100239922 | FUEL CELL SYSTEM AND METHOD OF DRIVING THE SAME - A fuel cell system and a method for driving the fuel cell system are disclosed. In one aspect, the fuel cell system may include a fuel stack, a fuel supply unit, an oxidizer supply unit, a humidifying unit, and a controller configured to measure the temperature of unit cells within the fuel cell stack and configured to detect the lowest measured temperature. The fuel cell stack may include a membrane electrode assembly and a plurality of unit cells. The membrane electrode assembly may include a membrane, a cathode disposed at a first side of the membrane and an anode disposed at a second side of the membrane. In another aspect, a method of driving a fuel cell system may include sequentially supplying a humidified fuel and an oxidizer to a fuel cell stack, measuring the temperature of each of a plurality of unit cells in the fuel cell stack, detecting to detect a unit cell having the lowest temperature among the measured temperature of each of the plurality of unit cells and decreasing humidification temperature of the fuel to be lower than the lowest temperature. | 09-23-2010 |
20140289602 | APPARATUS AND METHOD FOR EDITING TABLE IN TERMINAL - An apparatus and a method for editing a table in a terminal which can edit a table intuitively and easily are provided. The apparatus includes a display unit that simultaneously displays a row number adjusting UI and a column number adjusting UI in a table editing mode, and a controller that performs a control so that a plurality of handlers are displayed on the table when the table displayed in a specific application is selected, a conversion to the table editing mode is performed when a specific handler among the plurality of handlers is selected, and respective UIs that can adjust the number of rows and the number of columns of the table in the table editing mode are simultaneously displayed. | 09-25-2014 |
20150062352 | METHOD FOR TRANSMITTING CONTENTS AND ELECTRONIC DEVICE THEREOF - A method of operating an electronic device is provided. The method includes receiving, by an electronic device, an input relating to data to be transmitted, monitoring a state of the electronic device, determining whether to transmit the data on a basis of at least part of a result of the monitoring, and transmitting the data according to a result of the determining. | 03-05-2015 |
20150063542 | METHOD AND APPARATUS FOR MANAGING X-RAY ACCUMULATION AMOUNT - An X-ray imaging method includes obtaining first information including X-ray accumulation amount of an object; determining an imaging protocol for imaging the object based on the received first information; and acquiring an X-ray image of the object based on the determined imaging protocol. The first information including the X-ray accumulation amount of the object is obtained from a device of the object via a short range wireless communication or from an external database based on authentication information input received from the object. | 03-05-2015 |
Patent application number | Description | Published |
20120091247 | TRAVERSOR GUIDE APPARATUS - A traversor guide apparatus is disclosed. The present invention makes it possible to accurately measure a moved distance of an object by keeping a wire tightly wound on a bobbin even when a bobbin has an instant rotation. | 04-19-2012 |
20130018261 | Ultrasonic Apparatus Comprising Therapeutic Ultrasonic Transducer Detachably Coupled to Diagnostic Ultrasonic TransducerAANM Jeong; Jong SeobAACI SeoulAACO KRAAGP Jeong; Jong Seob Seoul KRAANM Kim; SungMinAACI Goyang-siAACO KRAAGP Kim; SungMin Goyang-si KRAANM Park; Jun YoungAACI SeoulAACO KRAAGP Park; Jun Young Seoul KR - An ultrasonic apparatus including a therapeutic ultrasonic transducer and a diagnostic ultrasonic transducer which is detachably coupled to the therapeutic ultrasonic transducer is provided. Here, the therapeutic and diagnostic ultrasonic transducers can be mounted to be independently replaceable with new ones. The therapeutic ultrasonic transducer and the diagnostic ultrasonic transducer, both of which constitute the ultrasonic apparatus, can be independently exchanged, transducers having various frequency bands and focusing distances can be combined, and damage to the diagnostic ultrasonic transducer can be prevented by preventing heat generated from therapeutic ultrasonic waves from being transferred to the diagnostic ultrasonic transducer. | 01-17-2013 |
20130069898 | PAD FOR TOUCH PANEL AND TOUCH PANEL USING THE SAME - There are provided a pad for touch panel and a touch panel using the same, and more particularly, a pad for touch panel comprising an insulating layer with a conductive pattern wherein the insulating layer has a touch pattern and a lead wire formed on the top surface thereof, and one terminal of the lead wire is extended to an edge of the insulating layer to form a connection electrode, characterized in that the pad for touch panel at least comprises i) an insulating layer with conductive pattern comprising the insulating layer, a transparent conductive coating layer pattern which is partially laminated on the top of the insulating layer and has the touch pattern, the lead wire and the connection electrode pattern thereon, and a metal coating layer which is partially laminated on the top of the transparent conductive coating layer and has the lead wire and the connection electrode pattern thereon; ii) an adhesive layer which is laminated on the top of the insulating layer with conductive pattern; and iii) a coupling layer which is coupled to the top of the adhesive layer; the connection electrode region has an open portion where the top surface of the metal coating layer is open externally; and the open portion further comprises a corrosion-resistant metal layer which is coated to the open portion to disconnect the open portion from the outside, and a touch panel using the same. Through this, the present invention can enhance the durability of touch panels by coating with an excellent corrosion-resistant metal an open portion of a connection electrode region of the pad for touch panel which is formed to electrically connect the pad for touch panel with external circuit boards such as an FPCB, thereby to solve corrosion problems in the open portion of the connection electrode region. | 03-21-2013 |
20130129281 | OPTICAL TRANSMISSION AND RECEIVING DEVICE FOR IMPLEMENTING PASSIVE ALIGNMENT OF COMPONENTS AND METHOD FOR PASSIVELY ALIGNING COMPONENTS - An optical device for implementing passive alignment of parts and a method therefore, more particularly an optical device and a method therefore that utilize an alignment reference part | 05-23-2013 |
20150195046 | OPTICAL RECEIVER FOR COMPENSATING DC OFFSET - Disclosed is an optical communication receiver capable of compensating a DC offset while preventing an input load effect. The optical communication receiver includes an optical signal detector; an amplifier inputted with a photocurrent outputted from the optical signal detector; and a DC offset compensation unit provided therein with a third transistor and a fifth transistor which are connected in series to each other to prevent an input load effect, wherein the DC offset compensation unit compensates a DC offset by outputting at least a portion of DC current inputted to the amplifier to ground through the third transistor and the fifth transistor when the photocurrent is an over current more than a predetermined set value. | 07-09-2015 |