baber/WOPTO huggingface dataset:
Patent KR-20190088386-A (KR)
Title: Optical measurement apparatus and optical measurement method
Inventor: KAJII YOSUKE
IPC: G01J1/44
Filed: 2018-10-17
Abstract: According to the present invention, noise which can occur at a measured distance is easily removed in some of the objects. An optical measuring device (100) has: a light source (10) emitting light; a light receiving part (40) for detecting a light receiving amount of the reflected light reflected from the object (TA); a measuring part (51) for measuring a distance from the optical measuring device (100) to the object (TA) on the basis of the received amount of reflected light; and a detection part (52) for detecting a part of the object (TA) whose reflected light amount per unit time is smaller than a threshold value.
Patent KR-20190045846-A (KR)
Inventor: KONDOH Shigeki
IPC: B23K35/02
Filed: 2018-10-19
Abstract: Provided is a nuclear material, in which Sb of a solder plating layer is homogeneous and concentration ratio of the Sb is within a predetermined range. The nuclear material, formed by plating and coating Sn-Sb based soldering alloy composed of Sn and Sb, on a surface of a nucleus (12), wherein the Sb of the solder plating layer (16) is distributed in the solder plating layer at a concentration ratio of a predetermined rage and the concentration ratio of the Sb is within a range of 70-125.0%. The Sb is homogeneous in the solder plating layer such that the concentration ratio of the Sb is within a predetermined range across an overall area including an inner circumferential side and an outer circumferential side in the solder plating layer. Therefore, the present invention prevents the nuclear material from bouncing due to volumetric expansion difference in the inner circumferential side and the outer circumferential side in the solder plating layer because the inner circumferential side is melted more rapidly than the outer circumferential side. In addition, all of the solder plating layers are homogeneously melted to prevent position deviation of the nuclear material considered to occur because of deviation of melting timing such that there is no concern about disconnection between electrodes accompanied by the position deviation or the like.
Patent KR-20190051796-A (KR)
Inventor: OGASAWARA MASAKI
IPC: G03F7/00
Filed: 2018-10-22
Abstract: The present invention relates to an imprinting apparatus which performs a pattern forming process for forming a pattern using a mold with an imprinting material on a substrate. In addition, the imprinting apparatus comprises: a block including a relative driving mechanism for controlling a relative position and a relative posture of the substrate and the mold; and a control unit for controlling power supply to the block, wherein control unit controls interruption of power supply to the block in accordance with the state of the pattern forming process when an event to interrupt the power supply to the block occurs.
Patent KR-20200048554-A (KR)
Inventor: SHIM JAE WOONG
IPC: G06Q40/04
Filed: 2018-10-30
Abstract: The present invention relates to a terminal device for applying transaction rules of cryptocurrencies exchangeable for real economic value. The terminal device receives a request for transmitting first cryptocurrencies to convert from the first cryptocurrencies to second cryptocurrencies, confirms rating information of a recipient to receive the first cryptocurrencies, confirms transaction rules corresponding to the rating information of the recipient according to the content of a smart contract related to the second cryptocurrencies, and determines whether to allow the transmission of the first cryptocurrencies based on the confirmed transaction rules.
Patent KR-20200049982-A (KR)
Inventor: LEE HYO JO
IPC: F01M1/16
Filed: 2018-10-30
Abstract: The present invention relates to a cooling device of an engine which improves performance of the engine by separately cooling a cylinder head, an upper portion of a cylinder block, and a lower portion of the cylinder block. According to an embodiment of the present invention, a cooling device of an engine comprises: a water pump which pumps coolant so that the coolant circulates while cooling the engine; a water jacket as a passage of the coolant, which is formed in an upper portion of a cylinder block of the engine and a cylinder head of the engine; an oil pump which pumps engine oil so that the engine oil circulates while cooling the engine; an oil jacket as a passage of the engine oil, which is formed in a lower portion of the cylinder block; an integrated flow control valve which changes a circulation path of the coolant passing through the water jacket; an oil valve which selectively circulates the engine oil to the oil jacket; and a controller which controls operations of the integrated flow control valve and the oil valve.
Patent KR-20200053689-A (KR)
Title: Wall Mounting type Electrical Outlet Device equipped with Short-range Wireless Communication Function and Intuitive Power Saving Functionby using Parallel type Noncyclic Power Saver
Inventor: JUNG JUNG YONG
IPC: H01R13/66
Filed: 2018-11-07
Abstract: The present invention relates to a wall-mounted electrical outlet device having a short-range wireless communication function and an intuitive power saving function by using a parallel non-circuit power saver, capable of saving a power in use during the use of the power of an AC power source by using a stationary electrical outlet. According to the present invention, the wall-mounted electrical outlet device having the short-range wireless communication function and the intuitive power saving function by using the parallel non-circuit power saver includes: a ferroelectric mixture; a first wiring part; a second wiring part; a first connection part; a second connection part; a processing unit; a sensor unit; a generation unit; and a communication unit.
Patent KR-20200053128-A (KR)
Title: Water-soluble effervescent solid fragrances
Inventor: YONGEUI LEE
IPC: A61L9/012
Filed: 2018-11-08
Abstract: The present invention relates to a water-soluble foaming solid perfume comprising a high content of fragrance which does not include organic solvents such as surfactants, preservatives, and alcohols. In addition, additional components may be carried for cleaning and sterilizing effects, and the effects of fragrance, cleaning, sterilization, and the like may be increased by imparting a foaming property. Furthermore, the present invention generates no residual by-products after foaming, and may be processed into a solid formulation, thereby improving stability and improving portability and convenience of use.
Patent KR-20200059527-A (KR)
Title: Self-powered smart alarm system
Inventor: KIM DAE GON
IPC: G08B21/18
Filed: 2018-11-21
Abstract: The present invention relates to a smart alarm system. According to the present invention, signal transmission is performed by R/F wireless communication and power line communication for performing transmission with a communication signal included in a commercial power line so that a complex wired connection configuration can be replaced with a simple wireless configuration or a simple power line configuration. In addition, communication is performed by one or both of the power line communication and the R/F wireless communication depending on communication-restricted zones so that an accident attributable to communication loss can be prevented. Each alarm device is provided with a human body detection sensor unit and thus it is possible to prevent a worker′s or inspector′s hearing loss by automatically reducing a siren or electronic horn sound in the event of worker or inspector detection around the alarm device. A separate remote controller is provided so that the alarm device installed at a height out of a person′s reach fulfills a test function so that wired or wireless connection and control are possible therebetween. As a result, when crew members and users perform regular tests and equipment inspection, the present invention provides efficient functions to efficiently manage a product and prevent the risk of falling.
Patent KR-20180128880-A (KR)
Inventor: FUKUMORI TAKESHI
IPC: A23L7/196
Filed: 2018-11-26
Abstract: An object of the present invention is to provide a method for producing alpharized rice which does not need to proceed with an immersion process and maintains a fine particle shape. The method for producing the alpharized rice comprises: a pressurized steaming process of cooking rice grains as a raw material with pressurized steam; a cooking process of alpharizing the rice grain after the pressurized steaming process; a high-temperature drying process for drying the alpharized rice grain at a high temperature, after the alpharizing process; and a low-temperature drying process for drying the same at a lower temperature than the temperature in the high-temperature drying process, wherein the processes are sequentially conducted. An alpharized layer is formed on the surface of the rice grain by the pressurized steaming prior to the cooking process without undergoing an immersion process.
Patent KR-20180131520-A (KR)
Inventor: HWANG KYU YOUNG
IPC: C08K5/00
Filed: 2018-11-26
Abstract: Provided is a photorefractive composite. According to an aspect of the present invention, the photorefractive composite includes: a photoconductive polymer; a nonlinear optical pigment; and at least one carborane compound indicated by chemical formulas 1A to 1C. R1 and R2 in the chemical formulas 1A to 1C refer to details in the present invention. According to an aspect of the present invention, the purpose of the present invention is to provide a photorefractive composite with improved photorefractive efficiency and photorefractive speed.
Patent KR-20190096266-A (KR)
Title: Cutting apparatus and manufacturing method of cut product
Inventor: YAMAMOTO MASAYUKI
IPC: H01L21/67
Filed: 2018-11-27
Abstract: The present invention provides a cutting apparatus, which has strong retention force on a table even after cutting an object to be cut. To this end, the cutting apparatus of the present invention includes a table (10), an atmospheric pressure maintaining device and a cutting device (30). The object to be cut (20) is absorbed to be maintained by the table (10). Atmospheric pressure of the outside of the table (10), in which the object to be cut (20) is maintained, is maintained with high atmospheric pressure by the atmospheric pressure maintaining device. The object to be cut (20) maintained on the table (10) is cut by the cutting device (30).
Patent KR-20200063850-A (KR)
Inventor: MIN JOONKI
IPC: H02S50/00
Filed: 2018-11-28
Abstract: The present invention relates to a maximum power tracking method of a solar power conversion device which detects a voltage, a current, and a temperature of a solar cell to track maximum power. More specifically, the present invention relates to a maximum power tracking method of a solar power conversion device which tracks a maximum power point by using the temperature of a solar cell module to enable accurate maximum power tracking so as to prevent damage due to a heat point phenomenon of the solar cell module, thereby extending a lifespan of the solar cell module. Moreover, the damage which can occur by allowing a power conversion unit to bring power rather than maximum power can be prevented and, accordingly, safety can be secured by transmitting a signal to an upper control circuit.
Patent KR-20200063903-A (KR)
Title: Manufacturing method of ferritic stainless steel with improved surface quality
Inventor: JONG CHUL KIM
IPC: B22D11/00
Filed: 2018-11-28
Abstract: The present invention provides a manufacturing method of ferritic stainless steel with improved surface quality by adding a nucleation material to the center of a cast piece in continuous casting. According to an embodiment of the present invention, the manufacturing method of ferritic stainless steel with improved surface quality comprises: a molten steel refining step; a component adjustment step for the refined molten steel; a continuous casting step of injecting molten steel which has undergone the component adjustment step into a tundish, and moving the molten steel to a mold through a nozzle to perform casting; and a step of adding a nucleation material including CaTiO_3 oxide to the molten steel in the mold. The nucleation material is added to a position at which the thickness of a solidified cell of the molten steel corresponds to 40-50% of the overall cast piece thickness.
Patent KR-20200065278-A (KR)
Inventor: JEONG BEOM MO
IPC: G06Q30/06
Filed: 2018-11-30
Abstract: The present invention relates to a system for mediating goods, simple donation, talent, service, etc. based on blockchain. The system for mediating goods, etc. based on blockchain according to one aspect of the present invention comprises: a supplier terminal registering goods, etc. using a supplier account and setting a minimum value amount for the goods and an auction period of the goods; a consumer terminal setting a bid amount using a consumer account and participating in an auction according to the registration of the goods, etc.; a server performing the auction for the registered goods during the auction period and distributing virtual currency of the consumer account corresponding to the highest bid amount among the bid amount bid through the consumer terminal to a supplier account and a preset administrator account according to a predetermined distribution ratio, after the auction period; and a plurality of distributed storage servers distributing and storing the generated DB.
Patent KR-20190067723-A (KR)
Title: Systems, devices and methods for wirelessly delivering haptic effects
Inventor: MANDEVILLE ALEXIA
IPC: G06F3/01
Filed: 2018-12-06
Abstract: Provided are a system, device, and method for wirelessly delivering a haptic effect. The device may include a haptic actuator secured to various substrates including a body and clothing of a user. The haptic actuator may be secured via adhesive and/or may be applied as a curable liquid. The haptic actuator may include an actuator element and a power element. The power element may include an antenna for receiving wireless power and a control signal, which may be transferred to the haptic actuator to cause a haptic effect.
Patent KR-20200069634-A (KR)
Title: Washing apparatus of metal mask
Inventor: PARK IL HWAN
IPC: H01L21/67
Filed: 2018-12-07
Abstract: The present invention relates to a mask washing apparatus and more specifically, to a mask washing apparatus capable of performing washing and drying together and washing a mask and a squeegee together. According to the present invention, the mask washing apparatus comprises a washing tank, a washing jig, a moving means, an ultrasonic vibrator, a washing nozzle unit, an air nozzle unit, and a drying tank. The washing tank accommodates a washing solution and has a drain to discharge the washing solution. A mask can be mounted on the washing jig. The moving means vertically moves the washing jig to insert the washing jig into the washing tank to wash the mask. The ultrasonic vibrator is mounted on the washing tank to wash the mask mounted on the washing jig moved to the washing tank by the moving means with the washing solution. The washing nozzle unit is mounted on the washing tank to spray the washing solution to the mask to remove foreign substances attached to the mask to be washing by the ultrasonic vibrator. The air nozzle unit is mounted on the washing tank to spray air to the mask to dry the mask discharged after being washed by the washing nozzle unit. The drying tank allows the washing jig to be inserted therethrough, and is mounted on the washing tank to enclose the air nozzle unit to prevent the washing solution of the washing tank from splashing to the mask when the air is sprayed to the mask by the air nozzle unit.
Patent KR-20200075120-A (KR)
Inventor: DUK CHAN YOON
IPC: G06Q10/06
Filed: 2018-12-12
Abstract: Shown are a corporate default prediction system and an operation method thereof. According to various embodiments of the present invention, a method of predicting a default risk of a company may comprise the steps of: collecting a plurality of news articles on the Internet; selecting a company to be analyzed; classifying news articles related to an analysis target company among the plurality of collected news articles into analysis target news articles; calculating a risk level for each of the analyzed news articles; generating feature vectors representing each group by grouping the analysis target news articles based on the calculated risk level; and calculating a default risk of the analysis target company based on the generated feature vectors.
Patent KR-20200073013-A (KR)
Inventor: KIM JU WON
IPC: H04W4/12
Filed: 2018-12-13
Abstract: The present invention relates to a vehicle communication system capable of transmitting a message or voice between vehicles and a control method thereof. According to an embodiment of the present invention, a control method of a vehicle-to-vehicle communication system may comprise the steps of: monitoring a current situation based on at least one piece of input information; determining whether the current situation corresponds to an emergency situation condition; when the determination result corresponds to the emergency situation condition, creating a message corresponding to the satisfied emergency situation condition; and broadcasting the created message to at least one nearby vehicle.
Patent KR-20200073805-A (KR)
Title: Display device
Inventor: HOWON CHOI
IPC: H01L27/32
Filed: 2018-12-14
Abstract: Provided is a display device capable of increasing the aperture ratio of a pixel. According to an embodiment of the present invention, the display device comprises: a substrate having a first sub-pixel and a second sub-pixel; a bank provided on the substrate and having an undercut structure in which the width of a lower surface thereof is smaller than the width of an upper surface thereof; a first electrode provided on the substrate and the bank and disconnected between the first sub-pixel and the second sub-pixel by an undercut structure of the bank; and a light emitting layer provided on the first electrode; and a second electrode provided on the light emitting layer.
Patent KR-20200077664-A (KR)
Title: Smart Toy System For Coding Training By Using RFID Tag
Inventor: KIM HYUN GAB
IPC: G06K19/07
Filed: 2018-12-20
Abstract: Disclosed is a smart toy system for teaching coding by using a radio frequency ID (RFID) tag. According to the present invention, the smart toy system can process a command or command set input from a visual editor device and various types of coding means such as an RFID tag, an SD card, and a joystick, and when a new command or a new command set is input while one command set is processed, can complexly process the corresponding command. Moreover, an execution process of a command implemented through the RFID tag can be visually checked through a computer and the like as well as a smart toy, thereby increasing coding learning effect. According to the present invention, the smart toy system comprises the RFID tag, a toy device, the visual editor device, and a control box.
Patent KR-20200079740-A (KR)
Inventor: WONJUNE JUNG
IPC: H01L51/52
Filed: 2018-12-26
Abstract: An objective of the present invention is to provide an organic light-emitting display device capable of improving a size of an electrode of a capacitor. An organic light-emitting display panel comprises: a light blocking layer which is arranged on a base substrate and has a light blocking property and a conductive property; a buffer film covering the light blocking layer; a first pixel including a first organic light-emitting diode and a first driving circuit unit; a second pixel arranged adjacent to the first pixel to include a second organic light-emitting diode; and a repair pattern extended from the first driving circuit unit toward the second organic light-emitting diode. A welding area, to which a laser is emitted, is defined on the first pixel. The repair pattern is overlapped with the light blocking layer, through which driving power outputted from the first driving circuit unit flows, on the welding area while the buffer film is arranged therebetween. The repair pattern is electrically connected to an anode of the second organic light-emitting diode on the second pixel. Holes corresponding to the repair pattern to be overlapped with each other are formed on a plurality of insulation layers interposed between the repair pattern and the buffer film on the welding area.
Patent KR-20180014208-A (KR)
Title: 고효율 고정확도 히터 드라이버
Inventor: GOLDIN ALEXANDER
IPC: F24C15/24
Filed: 2011-02-18
Abstract: 2 개의 트랜지스터들과 2 개의 다이오드들을 포함하는 램프 드라이버 회로를 가진 급속 열처리 챔버가 개시된다.  급속 열처리 챔버는, 복수 개의 할로겐 램프들, 램프 드라이버, 웨이퍼 온도를 측정하는 온도 센서, 및 온도 센서와 램프 드라이버에 연결된 온도 제어기를 포함하고, 온도 제어기는 필요 온도와 웨이퍼 온도의 함수들인 제어 신호들을 램프 드라이버에 제공한다.  램프 드라이버는, 복수 개의 할로겐 램프들에 공급되는 전력의 역률이 0.9 내지 1의 범위 내에 있도록, 제어 신호들에 의해 제어되는 2 개의 트랜지스터들을 포함한다.
Patent KR-20180036733-A (KR)
Title: 실록산 코폴리머 및 그 실록산 코폴리머를 포함하여 구성되는 고체 폴리머 전해질
Inventor: SIVASUBRAMANIAN KARTHIKEYAN
IPC: C08G77/18
Filed: 2016-07-22
Abstract: 고체 폴리머 전해질 필름을 제조하는데 사용하기 위한, 헤테로고리 모이어티를 포함하여 구성되는 실리콘 폴리에테르에 관한 것으로서, 그 실리콘 폴리에테르는, 전기화학 장치에 사용하기에 적합한 전해질 조성물을 제공하는데 사용될 수 있고, 또한 전기화학 장치에 사용하기에 적합할 수 있는, 고체 폴리머 전해질 필름을 제조하는데 사용될 수 있는, 고체 폴리머 전해질을 제조하는데 사용될 수 있다.
Patent KR-20180044967-A (KR)
Title: 열경화성 조성물, 페인트 마감 방법, 및 페인팅된 물품의 제조 방법
Inventor: MIZUTANI HIROKI
IPC: B05D3/00
Filed: 2016-08-24
Abstract: [목적] 적용 후 단기간 동안 방오성을 나타낼 뿐만 아니라 장기간 동안에도 우수한 방오성이 기대될 수 있으며, 페인팅된 강철 시트에 요구되는 페인트 필름 특성, 예컨대 내수성 및 굽힘 가동성(bending workability)에 부응하고, 높은 환경적 보호성 및 안전성 품질을 가진 페인트 필름을 수득하는 것을 가능하게 하는 열경화성 조성물을 제공하기 위한 것이다.  [해결방안] 본 발명은 열경화성 조성물에 관한 것이며, 여기서, 이러한 열경화성 조성물은 필수 구성성분으로서, (A) 수 평균 분자량이 1,000-10,000이고 하이드록실가(hydroxyl value)가 5-200 mg KOH/g인 폴리에스테르 수지, (B) 상기 구성성분 (A)의 하이드록실기를 기준으로, 구성성분 (A)의 하이드록실기에 대해 반응성을 갖는 블라킹된(blocked) 지방족 폴리이소시아네이트 화합물인 화합물 (B) 0.5 내지 2.0 당량으로서, 여기서, 상기 블락(block)은 메틸 에틸 케톤 옥심 및/또는 ε-카프로락탐임, (C) 구성성분 (A)와 구성성분 (B)의 총 수지 고형분 질량을 기준으로, 하기 화학식 (I)로 표시된 오르가노틴(organotin) 화합물 0.05 내지 5 질량%: 
[화학식 I]  
   
(상기 화학식 I에서, R 1 은 탄소수 1 내지 24의 유기 기를 나타내고, C 원자를 통해 Sn 원자에 직접 결합되어 있다.  R 2 는 탄소수 1 내지 24의 유기 기를 나타내고, C 원자를 통해 (C=0)의 C 원자에 직접 결합되어 있음), 및 (D) 구성성분 (A)와 구성성분 (B)의 총 수지 고형분 질량을 기준으로, 하기 화학식 (II)로 표시된 오르가노실리케이트 및/또는 이의 축합 생성물 0.5 내지 50 질량%: 
[화학식 II]  
   
(상기 화학식 II에서, R 3 , R 4 , R 5  및 R 6 은 각각 수소 원자 또는 1 내지 10개의 탄소 유기 기이고, 동일하거나 또는 서로 다를 수 있고, n은 1임)를 포함한다.
Patent KR-20180082445-A (KR)
Title: 시간 오프셋된 심도 구획부를 구비한 에지-온 검출기를 사용하는 고해상도 전산화 단층촬영(high-resolution computed tomography using edge-on detectors with temporally offset depth-segments)
Inventor: SJOLIN MARTIN
IPC: G01T1/24
Filed: 2015-11-12
Abstract: 전산화 단층촬영(CT) 시스템(10)에 의해 수행되는 측정 방법이 개시된다. CT 시스템(10)은 엑스레이 광원과, 광자 계수 에지-온 검출기로 이루어진 엑스레이 검출기 어레이를 포함하되 각각의 에지-온 검출기는 엑스레이 입사 방향으로 상이한 공간적 위치에 배열되는 다수의 심도 구획부("검출 소자"로도 지칭함)(15)를 구비한다. 상기 방법은 상이한 심도에 배치되는 적어도 두 개의 상이한 검출 소자(15)의 측정 주기 사이에 시간 오프셋을 제공하되 상기 시간 오프셋은 적어도 두 개의 측정 주기가 적어도 부분적으로 시간상 중첩되도록 선택되는 시간 오프셋 측정 기법을 적용하는 것을 포함한다. 또한 CT 시스템용 제어 유닛(10)과 CT 시스템(10)용 측정 회로(30)가 개시된다. CT 시스템(10)용 컴퓨터 프로그램도 개시된다. 본 발명은 각도 방향으로 보다 높은 샘플링 빈도수를 제공한다.
Patent KR-20180062464-A (KR)
Title: 자유 및 제한 작동 모드를 위한 스크린
Inventor: ALKHIMENKO STEPAN
IPC: G02F1/13
Filed: 2016-11-24
Abstract: 본 발명은 적어도 2 개의 작동 모드들, 자유 보기 모드를 위한 B1 및 제한 보기 모드를 위한 B2에서 작동될 수 있는 스크린(1)에 관한 것이다. 이 스크린(1)은 작동 모드들 모두에서, 즉 작동 모드(B1)에서 제한되지 않는 각 범위로, 또한 작동 모드(B2)에서 제한된 각 범위로 광을 방출하는 평면 방식으로 연장되는 백라이트(2)를 포함한다. 투과성 이미저(5)는 보기 방향으로 보여질 때 백라이트(2) 앞에 배치된다. 광원들(4)은 보기 방향으로 이미저(5)의 능동적 이미지 디스플레이 영역 외부에 배치되고, 또한 투명한 열가소성 또는 열탄성 물질 및 그 안에 분포되는 산란 입자들로 구성되는 판상 광 안내(3)는 보기 방향으로 보여질 때 이미저 앞에 배치된다. 작동 모드(B1)에서, 광원들(4)은 스위치 오프되어, 백라이트(2)로부터 발생하고 그후 이미저(5)를 통과한 광은 필수적으로 영향받지 않고 광 안내(3)를 통과한다. 작동 모드(B2)에서, 상기 광원들(4)은 스위치 온되어, 백라이트(2)에 의해 제한된 각 범위로 방사되고 이미저(5)를 통과한 광은 광 안내(3)로부터 광의 방사로 인해 보기 공간으로 확산 및/또는 직접적으로 반사 또는 다시 산란되거나 및/또는 넓은 각 범위로 평면 방식으로 보기 공간 내로 방사되는 광에 의해 중첩된다. 따라서, 이미저(5) 상에 나타나는 이미지의 잔여 가시성은 이 제한된 각 범위 외부에서 감소된다.
Patent KR-20180097559-A (KR)
Title: 수분산형 절연 피막 형성용 전착액
Inventor: ISOMURA Jyunko
IPC: C09D7/63
Filed: 2016-09-27
Abstract: 이 전착액은, 폴리머 입자, 유기 용매, 염기성 화합물 및 물을 함유하는 수분산형 절연 피막 형성용 전착액으로서, 상기 폴리머 입자가 폴리아미드이미드이고, 상기 염기성 화합물이 물과의 HSP 거리가 35 이상인 질소 함유 화합물인 것을 특징으로 한다.