Patent application number | Description | Published |
20090174493 | ADJUSTABLE INDUCTOR AND WIDEBAND VOLTAGE CONTROLLED OSCILLATOR - An adjustable inductor includes a first conductor line to receive an alternating current (AC) signal, a second conductor line configured in a loop arrangement, to generate an inducting current upon receiving the AC signal at the first conductor line, and a switch to adjust an inductance of the first conductor line by switching a loop connection of the second conductor line according to an external control signal. | 07-09-2009 |
20090212861 | LOW NOISE AMPLIFIER - A low noise amplifier is provided. The low noise amplifier includes: a low noise amplifying unit amplifying an input signal; a harmonic and noise generating unit disposed in an input terminal of the low noise amplifying unit, for generating a compensating signal for compensating for an intermodulation distortion signal and a thermal noise signal of the input signal to the low noise amplifying unit; and a load unit outputting the amplified input signal generated by the low noise amplifying unit. | 08-27-2009 |
20090215421 | RF RECEIVER AND METHOD OF RECEIVING RF SIGNAL - A radio frequency (RF) receiver and a method of receiving an RF signal are provided. The RF receiver includes a low-noise amplifying unit which amplifies a received signal while restricting out-of-band interferer of the received signal, a sampling unit which performs sampling to convert the amplified signal to a discrete time domain signal, a frequency translation unit which down-converts the sampled signal into a frequency band that enables the sampled signal to be converted into a digital signal and restricts interferer from a frequency within an aliasing band according to a sampling frequency, an anti-aliasing filtering unit which prevents aliasing from the down-converted signal, a clock unit which provides the sampling unit, the frequency translation unit, and the anti-aliasing filtering unit with sampling frequencies, and an analog-digital-converter which converts the converted signal into the digital signal. | 08-27-2009 |
20100316174 | DISCRETE TIME FILTER AND RECEIVER INCLUDING THE SAME - A discrete time filter includes a plurality of sampling cells and a first dummy sampling cell. Each of the sampling cells performs a current mode sampling operation based on current input to an input terminal in response to a corresponding one of a plurality of sampling clock signals and is reset in response to a corresponding one of the plurality of sampling clock signals and a first dummy sampling clocks. The first dummy sampling cell alternately performs with the first sampling cell the current mode sampling operation based on current input to the input terminal in response to the first dummy sampling clock signal and is alternately reset with the first sampling cell in response to the first sampling clock signal. | 12-16-2010 |
Patent application number | Description | Published |
20140119618 | APPARATUS AND METHOD FOR FACE RECOGNITION - A control method of an apparatus for face recognition includes acquiring an image through an image acquirer, extracting a facial image from the acquired image, determining whether the extracted facial image meets a predetermined quality condition to decide use/non-use of the extracted facial image and performing a face recognizing operation by using the extracted facial image if the extracted facial image meets the predetermined quality condition. | 05-01-2014 |
20140184726 | DISPLAY APPARATUS AND METHOD FOR VIDEO CALLING THEREOF - A display apparatus and a method for video calling thereof are provided. The method includes: capturing an image; detecting a face of at least one user from the captured image; setting an interest area to include a preset body part of the at least one user whose face has been detected; editing the interest area set in the captured image to generate a video calling image; and transmitting the video calling image to an external apparatus. | 07-03-2014 |
20140294254 | DISPLAY APPARATUS FOR PERFORMING USER CERTIFICATION AND METHOD THEREOF - A method of certifying a user is provided. The method includes: generating a learning system; if a reference image is registered, analyzing the reference image by using the learning system to detect characteristic information; storing the detected characteristic information; photographing a user to acquire a user image; analyzing the user image by using the learning system to detect face characteristic information and additional information of the user; and comparing the face characteristic information and the additional information with stored characteristic information to certify the user. Therefore, a user certification is accurately performed. | 10-02-2014 |
20150104082 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF - An image processing apparatus includes: a processor configured to process an image photographed by the camera and determine a user face within the image; and a controller configured to control the processor to determine whether same user faces appear in a plurality of video frames by tracing one or more user faces within the respective video frames included in the image. | 04-16-2015 |
20150154391 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF - An image processing apparatus is provided, including a user input interface to input biometric information of at least one user, a processor to process image data to be displayed as an image and to provide a preset service to authenticate a personal identification (ID) and the group ID of a user group including users corresponding to personal IDs, and a controller to specify a personal ID corresponding to biometric information of an input through the user input interface, and to select and authenticate the group ID corresponding to specified personal IDs from the storage when multiple personal IDs are specified. The controller derives interest of the multiple users corresponding to the respective specified personal IDs in the image and selects the group ID corresponding to a personal ID of a user determined to have a high interest. | 06-04-2015 |
20150215672 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus includes: a display; a data processor configured to process content data to be displayed as a content image on the display; a user input interface configured to receive biometric information about a user; a communication interface configured to communicate with an external apparatus; and a controller configured to identify the user based on the biometric information received through the user input interface, and control, if it is determined that the identified user is also a user of an external apparatus, the content data to be displayed as the content image on one of the display apparatus and the external apparatus in which a user interest is relatively high. | 07-30-2015 |
Patent application number | Description | Published |
20120113210 | 3D VIDEO COMMUNICATION APPARATUS AND METHOD FOR VIDEO PROCESSING OF 3D VIDEO COMMUNICATION APPARATUS - A video communication method includes: acquiring a plurality of 2D images corresponding to a talker using a 3D camera; adjusting a point of convergence of the plurality of 2D images using a feature point of the talker; detecting an object located between the talker and the 3D camera using the acquired plurality of 2D images; scaling an original sense of depth of the detected object to a new sense of depth; and generating a 3D talker image including the object with the new sense of depth and transmitting the 3D talker image to a 3D video communication apparatus of a listener. | 05-10-2012 |
20120120065 | IMAGE PROVIDING APPARATUS AND IMAGE PROVIDING METHOD BASED ON USER'S LOCATION - An image providing apparatus includes: a user location acquisition unit which acquires locations of users; a barrier adjustment unit which adjusts at least one of a space between a display and a barrier screen, a size of a barrier slot, and a left/right movement amount of the barrier slot at least based on a user's location of at least one of the users; an image generation unit which generates an image of which a time point region is adjusted, by the barrier adjustment unit, to the user's location; and an image output unit which outputs the generated image on a display. | 05-17-2012 |
20120176552 | DISPLAY APPARATUS CONTROLLED BY MOTION AND MOTION CONTROL METHOD THEREOF - A display apparatus is provided, which includes a motion recognition unit which recognizes a motion of an object that is located outside the display device, and a control unit which, when the motion of the object is recognized, determines a change amount that varies according to a motion speed or a motion distance of the object, and performs an operation which corresponds to the motion of the object according to the change amount. Accordingly, channel change or page shift can be easily performed. | 07-12-2012 |
20130120243 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - Disclosed are a display apparatus and a control method thereof, the display apparatus including: an image acquirer which acquires an image of a plurality of users; a display which displays the image acquired by the image acquirer; and a controller which selects a user making a predetermined gesture among the plurality of users in the image and controls the display apparatus to perform an operation corresponding to the selected user out of operations which are capable of being performed by the display apparatus when the image of the plurality of users is acquired through the image acquirer and the predetermined gesture is recognized from the acquired image. | 05-16-2013 |
20150156441 | DISPLAY APPARATUS CONTROLLED BY MOTION AND MOTION CONTROL METHOD THEREOF - A display apparatus is provided, which includes a motion recognition unit which recognizes a motion of an object that is located outside the display device, and a control unit which, when the motion of the object is recognized, determines a change amount that varies according to a motion speed or a motion distance of the object, and performs an operation which corresponds to the motion of the object according to the change amount. Accordingly, channel change or page shift can be easily performed. | 06-04-2015 |
20150254062 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - Disclosed are a display apparatus and a control method thereof, the display apparatus including: an image acquirer which acquires an image of a plurality of users; a display which displays the image acquired by the image acquirer; and a controller which selects a user making a predetermined gesture among the plurality of users in the image and controls the display apparatus to perform an operation corresponding to the selected user out of operations which are capable of being performed by the display apparatus when the image of the plurality of users is acquired through the image acquirer and the predetermined gesture is recognized from the acquired image. | 09-10-2015 |
Patent application number | Description | Published |
20090098703 | METHODS OF FABRICATING SEMICONDUCTOR DEVICES HAVING RESISTORS - A semiconductor device having a resistor and a method of fabricating the same are provided. The semiconductor device includes a semiconductor substrate having a first circuit region and a second circuit region. A lower interlayer insulating layer is provided over the semiconductor substrate. A first hole passing through the lower interlayer insulating layer in the first circuit region and a second hole passing through the lower interlayer insulating layer in the second circuit region are provided. A first semiconductor pattern and a second semiconductor pattern are sequentially stacked in the first hole. A first resistor having the same crystalline structure as the second semiconductor pattern is provided in the second hole. | 04-16-2009 |
20090102012 | Semiconductor devices having active elements with raised semiconductor patterns and related methods of fabricating the same - A semiconductor device may include a semiconductor region of a semiconductor substrate wherein a P-N junction is defined between the semiconductor region and a bulk of the semiconductor substrate. An insulating isolation structure in the semiconductor substrate may surround sidewalls of the semiconductor region. An interlayer insulating layer may be on the semiconductor substrate, on the semiconductor region, and on the insulating isolation structure, and the interlayer insulating layer may have first and second spaced apart element holes exposing respective first and second portions of the semiconductor region. A first semiconductor pattern may be in the first element hole on the first exposed portion of the semiconductor region, and a second semiconductor pattern may be in the second element;hole on the second exposed portion of the semiconductor region. A surface portion of the first semiconductor pattern opposite the semiconductor substrate and a surface portion of the second semiconductor pattern opposite the semiconductor substrate may have a same conductivity type. Related methods are also discussed. | 04-23-2009 |
20090149424 | HEPARIN CONJUGATES AND METHODS - Heparin conjugates and methods of making and use thereof are disclosed. An illustrative heparin conjugate includes a composition wherein a bile acid is bonded to heparin through the 3-carbon of the bile acid. A spacer may be interposed between the bile acid and the heparin. Another embodiment includes a targeting moiety bonded to the heparin-bile acid conjugate through a spacer. Another illustrative heparin conjugate includes heparin covalently bonded to a sulfonated moiety, such as a naphthalene trisulfonate residue. A method of treating cancer includes administering a heparin conjugate to an individual in need thereof. | 06-11-2009 |
20110084361 | SEMICONDUCTOR DEVICES HAVING RESISTORS - A semiconductor device having a resistor and a method of fabricating the same are provided. The semiconductor device includes a semiconductor substrate having a first circuit region and a second circuit region. A lower interlayer insulating layer is provided over the semiconductor substrate. A first hole passing through the lower interlayer insulating layer in the first circuit region and a second hole passing through the lower interlayer insulating layer in the second circuit region are provided. A first semiconductor pattern and a second semiconductor pattern are sequentially stacked in the first hole. A first resistor having the same crystalline structure as the second semiconductor pattern is provided in the second hole. | 04-14-2011 |
20110142256 | METHOD AND APPARATUS FOR REMOVING NOISE FROM INPUT SIGNAL IN NOISY ENVIRONMENT - A method of removing a noise signal from an input signal, the method including receiving a pure noise signal and an input signal including the noise signal; determining whether the pure noise signal is a static noise signal or a non-static noise signal; and removing the noise signal from the input signal according to whether the noise signal is determined to be the static noise signal or the non-static noise signal. | 06-16-2011 |
20110188641 | METHOD AND APPARATUS FOR REMOVING NOISE SIGNAL FROM INPUT SIGNAL - A method for removing a noise signal from an input signal that is received. In the method, the amount of energy of the input signal is detected, a noise signal included in the input signal is estimated, an intermediate output signal is generated by removing the estimated noise signal from the input signal, and a final output signal is generated by amplifying the amount of energy of the intermediate output signal based on a difference between the amount of energy of the intermediate output signal and the amount of energy of the input signal. | 08-04-2011 |
20130085108 | PEPTIDES FOR PROMOTING ANGIOGENESIS AND AN USE THEREOF - The present invention relates to a peptide promoting angiogenesis and novel use thereof. More particularly, the invention relates to peptides promoting angiogenesis, and the use of the peptide for promoting angiogenesis and preventing or treating angiogenesis-related disease. The peptide of the present invention have an excellent effect on promoting angiogenesis. Accordingly, it is useful for preventing or treating angiogenesis-related disease and for preparing regeneration of skin flap, wound and burn healing, implantation of artificial-skin and preparation of blood vessels for transplantation. | 04-04-2013 |
20130137637 | PEPTIDES FOR PROMOTING ANGIOGENESIS AND AN USE THEREOF - The present invention relates to a peptide promoting angiogenesis and novel use thereof. More particularly, the invention relates to peptides promoting angiogenesis, and the use of the peptide for promoting angiogenesis and preventing or treating angiogenesis-related disease. The peptide of the present invention have an excellent effect on promoting angiogenesis. Accordingly, it is useful for preventing or treating angiogenesis-related disease and for preparing regeneration of skin flap, wound and burn healing, implantation of artificial skin and preparation of blood vessels for transplantation. | 05-30-2013 |
20130338422 | ANTICANCER PRODRUG ACTIVATED BY RADIATION OR ULTRAVIOLET TREATMENT AND USE THEREOF - The present invention relates to an anticancer prodrug consisting of peptide of acetyl-SEQ ID NO: 1-linker-anticancer drug. The anticancer prodrug effectively provides an anticancer drug unstable in acid or base, such as doxorubicin, in a form of prodrug. Thus, the anticancer prodrug exists as a non-toxic inactive form when administered into the body, but effectively releases the anticancer drug as an active ingredient in the target area in the presence of caspase activated by radiation or UV treatment after administered into the body. Accordingly, the anticancer drug exhibits selective anticancer effects on cancer cells, thereby maximizing the therapeutic effect and minimizing the side-effects of chemotherapy. | 12-19-2013 |
20140168349 | GLASSES APPARATUS AND METHOD FOR CONTROLLING GLASSES APPARATUS, AUDIO APPARATUS AND METHOD FOR PROVIDING AUDIO SIGNAL AND DISPLAY APPARATUS - A glasses apparatus and a controlling method thereof, and a display apparatus are provided. The glasses apparatus is configured to operate with the display apparatus, and includes a communicator configured to perform communication with the display apparatus; an osteophony speaker configured to output audio received from the display apparatus; and a controller configured to control the communicator to receive contents audio from the display apparatus if the display apparatus provides a contents image, and to receive call audio from the display apparatus if the display apparatus performs a call function with an external user, and to output one of the received contents audio and call audio to the osteophony speaker. | 06-19-2014 |
20140288300 | DRUG-FLUOROPHORE COMPLEX FOR SPECIFIC DETECTION OF TUMOR CELLS - Disclosed is a drug-fluorophore complex for specific detection of tumor cells. Specifically, the drug-fluorophore complex includes a tumor cell-targeting drug penetrating tumor cells and non-tumor cells at different rates or levels, and a fluorescent substance chemically bonded to the tumor cell-targeting drug. The drug-fluorophore complex enables specific imaging of tumor cells only with high accuracy in a very simple manner without causing cytotoxicity. | 09-25-2014 |
20150107390 | SHIFT LEVER ASSEMBLY FOR AUTOMATIC TRANSMISSION VEHICLE AND ASSEMBLING METHOD THEREOF - A shift lever assembly and assembling method for an automatic transmission vehicle may include a shift lever housing including divided components to be assembled, a shift lever, when assembled, one end of which is disposed in the divided components and connected pivotably to one or more of the divided components and the other end of which is arranged to protrude outside through a range hole formed in one of the divided components, and a plurality of elastic pins that are fitted cooperatively into the divided components when assembled to connect integrally the divided components. | 04-23-2015 |
20150135879 | STRUCTURE FOR MOUNTING PLANTABLE SHIFT LEVER ONTO BRACKET - A structure for mounting a plantable shift lever onto a bracket may include an extending part that protrudes from a front end of the plantable shift lever to extend forward, a dented part formed by denting a front end of the bracket forward to receive the extending part, a first penetrating hole formed to penetrate a rear end of the plantable shift lever in a left and right direction, a second penetrating hole formed to penetrate a rear end of the bracket in the left and right direction and positioned to correspond to the first penetrating hole, and a pin to be inserted into the first penetrating hole and the second penetrating hole to fix the plantable shift lever to the bracket. The plantable shift lever may be coupled to the bracket by inserting the extending part into the dented part and inserting the pin into the first penetrating hole and the second penetrating hole. | 05-21-2015 |
20150175662 | NOVEL PEPTIDES AND USE THEREOF - The present invention relates to novel peptides and use thereof and more specifically is directed to a peptide with anti-inflammatory effect, a polynucleotide encoding the peptide, a pharmaceutical composition comprising the peptide or polynucleotide for preventing or treating inflammatory diseases, an anti-inflammatory drug, an over-the-counter (OTC) drug composition comprising the peptide for preventing or ameliorating inflammation, a health food composition for alleviating or ameliorating inflammation, a cosmetic composition for preventing or ameliorating inflammation, a method for treating inflammatory diseases, comprising administrating the pharmaceutical composition to the subject suspected of having inflammatory disease, a method for preparing a mimetic of the peptide and a method for designing the same. | 06-25-2015 |
20150334486 | GLASSES APPARATUS AND METHOD FOR CONTROLLING GLASSES APPARATUS, AUDIO APPARATUS AND METHOD FOR PROVIDING AUDIO SIGNAL AND DISPLAY APPARATUS - A glasses apparatus and a controlling method thereof, and a display apparatus are provided. The glasses apparatus is configured to operate with the display apparatus, and includes a communicator configured to perform communication with the display apparatus; an osteophony speaker configured to output audio received from the display apparatus; and a controller configured to control the communicator to receive contents audio from the display apparatus if the display apparatus provides a contents image, and to receive call audio from the display apparatus if the display apparatus performs a call function with an external user, and to output one of the received contents audio and call audio to the osteophony speaker. | 11-19-2015 |
Patent application number | Description | Published |
20090193849 | METHOD FOR STABILIZING SLAG AND NOVEL MATERIALS PRODUCED THEREBY - Disclosed herein is a method for stabilizing slag, which is an oxide byproduct generated after completion of refining in a converter process for converting molten iron into molten steel via de-carbonization or in an electric arc furnace process for producing molten steel via melting of scrap iron, during iron/steel making processes, and a novel material produced thereby. More particularly, disclosed is a method for stabilizing and recycling slag, wherein converter slag or electric arc furnace slag, which is difficult to recycle because of free lime (i.e. free calcium oxide (CaO) referring to single-phase CaO) remaining therein after cooling, is subjected to appropriate treatments after completion of converter blowing, thereby restricting generation of free lime, and consequently, minimizing differentiation/expansion, environmental pollution and instability of slag. The method for stabilizing slag includes allowing molten slag to fall, injecting high-pressure gas to falling molten slag to separate the molten slag into fine droplets, and quenching the fine droplets with the injected gas and surrounding atmosphere. | 08-06-2009 |
20130269573 | ULTRA-RAPID HARDENING HYDRAULIC BINDER USING REDUCED SLAG POWDER, AND METHOD OF PREPARING THE SAME - Provided are an ultra-rapid hardening hydraulic binder including reduced slag powder and a method of preparing the same. The reduced slag powder is prepared by rapidly cooling molten electric arc furnace reduced slag, among by-products generated during an iron refinement process in a steel mill, to room temperature not to have free-calcium oxide by scattering the molten electric arc furnace reduced slag into the air using high-pressure gas by dropping the molten electric arc furnace reduced slag through a tundish. | 10-17-2013 |
20140063578 | APPARATUS FOR RECORDING AND REPRODUCING HOLOGRAM - A hologram recording and reproducing apparatus including: a coherent light source; a beam splitter which splits a beam emitted from the coherent light source into a signal beam and a reference beam; a signal beam forming unit which modulates the signal beam split and directs the modulated signal beam onto a hologram recording medium; and a reference beam forming unit which directs the reference beam to be irradiated onto a location on the hologram recording medium which overlaps with a location on the hologram recording medium on which the signal beam is incident, wherein the signal beam forming unit includes: a first light guide member which transmits the signal beam split by the beam splitter; a spatial light modulator (SLM) which modulates the signal beam transmitted through the first light guide member; and a holographic Fourier transformation optical device which focuses the modulated signal beam onto the hologram recording medium. | 03-06-2014 |
20140127611 | PHOTOPOLYMER COMPOSITION FOR RECORDING HOLOGRAM, AND PHOTOPOLYMER LAYER AND HOLOGRAM RECORDING MEDIA INCLUDING THE SAME - A photopolymer composition includes a polymer binder; a monomer for holographic recording; a photoinitiation system including an electron acceptor, at least one of an electron donor and a hydrogen atom donor, and a dye-sensitizer; and a solvent. The monomer for holographic recording includes N-acryloylthiomorpholine. | 05-08-2014 |
Patent application number | Description | Published |
20100108204 | ZIRCONIUM ALLOY COMPOSITION FOR NUCLEAR FUEL CLADDING TUBE FORMING PROTECTIVE OXIDE FILM, ZIRCONIUM ALLOY NUCLEAR FUEL CLADDING TUBE MANUFACTURED USING THE COMPOSITION, AND METHOD OF MANUFACTURING THE ZIRCONIUM ALLOY NUCLEAR FUEL CLADDING TUBE - Disclosed herein is a zirconium alloy composition for nuclear fuel cladding tubes, comprising: 1.6˜2.0 wt % of Nb; 0.05˜0.14 wt % of Sn; 0.02˜0.2 wt % of one or more elements selected from the group consisting of Fe, Cr and Cu; 0.09˜0.15 wt % of O; 0.008˜0.012 wt % of Si; and a balance of Zr, a nuclear fuel cladding tube comprising the zirconium alloy composition, and a method of manufacturing the nuclear fuel cladding tube. Since the nuclear fuel cladding tube made of the zirconium alloy composition can maintain excellent corrosion resistance by forming a protective oxide film thereon under the conditions of high-temperature and high-pressure cooling water and water vapor, it can be usefully used as a nuclear fuel cladding tube for light water reactors or heavy water reactors, thus improving the economical efficiency and safety of the use of nuclear fuel. | 05-06-2010 |
20100322370 | PROCESS OF MANUFACTURING ZIRCONIUM ALLOY FOR FUEL GUIDE TUBE AND MEASURING TUBE HAVING HIGH STRENGTH AND EXCELLENT CORROSION RESISTANCE - A process of manufacturing zirconium alloy. The process may be used to make a nuclear fuel guide tube and/or a measuring tube which are main components of a nuclear fuel assembly structure. While a nuclear fuel guide tube and a measuring tube are manufactured by performing three-step cold working, and intermediate and final thermal annealing from a semi-finished TREX shell in the conventional method, the present invention relates to zirconium alloy undergoing two-step cold working, and intermediate and final thermal annealing from a TREX shell, resulting in enhanced strength and corrosion resistance. The present invention may be applied to a nuclear fuel guide tube and a measuring tube used for a nuclear fuel assembly in a light water nuclear reactor because, by the shortened process, high percentage reduction in thickness between processes and an decrease in thermal annealing time may sustain high strength and excellent corrosion resistance, and achieve economy of manufacture by reducing the number of processes. | 12-23-2010 |
20120145287 | ZIRCONIUM ALLOY COMPOSITIONS HAVING EXCELLENT CORROSION RESISTANCE BY THE CONTROL OF VARIOUS METAL-OXIDE AND PRECIPITATE AND PREPARATION METHOD THEREOF - Disclosed herein are a zirconium alloy composition, which exhibits excellent corrosion resistance by varying the kinds of metal oxides and controlling the size of precipitates of the composition, including: 1.05˜1.45 wt % of Nb; one or more selected from the group consisting of 0.1˜0.7 wt % of Fe and 0.05˜0.6 wt % of Cr; and residual Zr, and a method of preparing the same. The zirconium alloy composition exhibits excellent corrosion resistance by controlling the kinds and amounts of the elements included in the zirconium alloy composition and the heat-treatment temperature and thus varying the kinds of metal oxides formed during an oxidation process and controlling the size of precipitates of the zirconium alloy, so that it can be usefully used as a raw material for nuclear fuel cladding tubes, spacer grids, nuclear reactor internals and the like of a light-water reactor or a heavy-water reactor in a nuclear power plant. | 06-14-2012 |
20130220493 | ZIRCONIUM ALLOYS FOR A NUCLEAR FUEL CLADDING HAVING A SUPERIOR OXIDATION RESISTANCE IN A REACTOR ACCIDENT CONDITION, ZIRCONIUM ALLOY NUCLEAR FUEL CLADDINGS PREPARED BY USING THEREOF AND METHODS OF PREPARING THE SAME - Disclosed are a zirconium alloy for a nuclear fuel cladding having a good oxidation resistance in reactor accident conditions, a zirconium alloy nuclear fuel cladding prepared by using thereof and a method of preparing the same. The zirconium alloy includes 1.0 to 1.2 wt % of niobium (Nb); at least one element selected from tin (Sn), iron (Fe) and chromium (Cr); 0.02 to 0.1 wt % of copper (Cu); 0.1 to 0.15 wt % of oxygen (0); 0.008 to 0.012 wt % of silicon (Si) and a remaining amount of zirconium (Zr). The amount of Sn is 0.1 to 0.3 wt %, the amount of Fe is 0.3 to 0.8 wt %, and the amount of Cr is 0.1 to 0.3 wt %. A good oxidation resistance of the nuclear fuel cladding may be confirmed under accident conditions as well as normal operating conditions of a reactor, thereby improving economic efficiency and safety. | 08-29-2013 |
20130220494 | ZIRCONIUM ALLOYS FOR A NUCLEAR FUEL CLADDING HAVING A SUPERIOR CORROSION RESISTANCE BY REDUCING AN AMOUNT OF ALLOYING ELEMENTS AND METHODS OF PREPARING A ZIRCONIUM ALLOY NUCLEAR FUEL CALDDING USING THEREOF - Disclosed are a zirconium alloy for a nuclear fuel cladding having a good corrosion resistance by reducing an amount of alloying elements and a method of preparing a zirconium alloy nuclear fuel cladding using thereof. The zirconium alloy includes 0.2 to 0.5 wt % of niobium (Nb); 0.2 to 0.6 wt % of iron (Fe); 0.3 to 0.5 wt % of chromium (Cr); 0.1 to 0.15 wt % of oxygen (O); 0.008 to 0.012 wt % of silicon (Si) and a remaining amount of zirconium (Zr). The total amount of the niobium, the iron and the chromium is 1.1 to 1.2 wt %. A good oxidation resistance of the nuclear fuel cladding may be confirmed under accident conditions as well as normal operating conditions of a reactor, thereby improving economic feasibility and safety. | 08-29-2013 |
20130220495 | ZIRCONIUM ALLOYS FOR A NUCLEAR FUEL CLADDING HAVING A SUPERIOR OXIDATION RESISTANCE IN A SEVERE REACTOR OPERATION CONDITION AND METHODS OF PREPARING A ZIRCONIUM ALLOY NUCLEAR CLADDING BY USING THEREOF - Disclosed are a zirconium alloy for a nuclear fuel cladding having a good oxidation resistance in a severe reactor operation condition and a method of preparing zirconium alloy nuclear fuel claddings by using thereof. The zirconium alloy includes 1.8 to 2.0 wt % of niobium (Nb); at least one element selected from iron (Fe), chromium (Cr) and copper (Cu); 0.1 to 0.15 wt % of oxygen (O); 0.008 to 0.012 wt % of silicon (Si) and a remaining amount of zirconium (Zr). The amount of Fe is 0.1 to 0.4 wt %, the amount of Cr is 0.05 to 0.2 wt %, and the amount of Cu is 0.03 to 0.2 wt %. A good oxidation resistance of the nuclear fuel cladding may be confirmed under a severe reactor operation condition at an accident condition as well as a normal operating condition of a reactor, thereby improving economic efficiency and safety. | 08-29-2013 |
20130299470 | Method for oxide dispersion strengthening of metallic material using laser - An oxide dispersion strengthening (ODS) method of a metallic material using a laser is provided, which includes melting a surface of a metallic matrix placed on a movable stage by irradiating a laser onto the surface (step 1), supplying an oxide dispersion strengthening (ODS) powder at a site of the matrix surface which is melt at step 1 (step 2), and cooling the matrix in which the ODS powder is supplied at step 2 (step 3). Because oxide particles are directly supplied into previously-made sheet or tube matrix, fabrication process is simplified, fabrication cost is reduced, and end product is fabricated efficiently. | 11-14-2013 |
20140205052 | Chelate Free Chemical Decontamination Reagent for Removal of the Dense Radioactive Oxide Layer on the Metal Surface and Chemical Decontamination Method Using the Same - A chemical decontamination reagent containing a reducing agent, a reductive metal ion, and an inorganic acid is provided to remove a radioactive oxide layer on a metal surface. The reagent can dissolve the radioactive oxide layer on the metal surface effectively at a relatively low temperature and enables a simple process of contacting the reagent to the radioactive oxide, thus economically effective in terms of cost and time required for the process. Since the decontamination does not use a conventional organic chelating agent such as oxalic acid, but the reducing agent as a main substance, the residuals of the reducing agent remained after decontamination can be decomposed and removed with an oxidizing agent. Due to the easy decomposition with the chemical decontamination reagent, secondary wastes can be minimized and the radionuclides remained in the decontamination reagent solution can be removed effectively. | 07-24-2014 |
20140378733 | Oxidation Decontamination Reagent for Removal of the Dense Radioactive Oxide Layer on the Metal Surface and Oxidation Decontamination Method Using the Same - The present invention provides an oxidative decontamination reagent for removal of the dense radioactive oxide layer on a metal surface, which comprises an oxidizing agent, a metal ion, and an inorganic acid. The oxidative decontamination reagent of the present invention is characteristically prepared by adding a metal ion to the conventional oxidative decontamination reagent containing an oxidizing agent and an inorganic acid. When the oxidative decontamination reagent of the present invention is used, electric potential of the metal parts of the primary system of the nuclear power plant can be regulated as passive potential owing to the added metal ion during the oxidative decontamination of the primary metal part of the nuclear power plant. Therefore, by maintaining electric potential of the metal part as passive potential, local corrosion can be inhibited and at the same time secondary waste can be significantly reduced. | 12-25-2014 |