baber/WOPTO huggingface dataset:
Patent KR-20010048744-A (KR)
Inventor: AHN CHEOL HONG
IPC: C08J5/22
Filed: 1999-11-29
Abstract: PURPOSE: A composition of photo dispersive film is provided to apply various image indicating device as being excellent brightness character and brightness uniformity without static electricity spot. CONSTITUTION: The composition of photo dispersive film is manufactured by dispersing inorganic or organic photo dispersing agent, transparent binder resin and hardening agent in organic solvent of single or two species or higher. Volume resistivity of composition is below 1x1012ohmcentimeter and volume resistivity of organic solvent is below 1x1012ohmcentimeter. The organic solvent is solvent mixed with single or two species or more selected from methylethylketone, methylisobutylketone, n-butylacetate, cyclohexanon or cellulesolveacetate or is mixed toluene and methylethylketone with 7:3 to 1:9.
Patent KR-20010049107-A (KR)
Inventor: LEE HYEON YONG
IPC: H01J9/34
Filed: 1999-11-30
Abstract: PURPOSE: A device for welding a frame assembly of a cathode ray tube is provided to reduce the cost of manufacturing by welding of a frame and a holder or a mask and a frame is carried out and to secure the space for installation by being formed with the single composition unconcerned with the kind of tubes. CONSTITUTION: The device(40a) for welding the frame assembly of the cathode ray tube includes a supporting board(42a), a lift assembly body(44a), a frame(18), a holder loading assembly body(32), welding electrode(48a) and a welding portion assembly body(46a). The lift assembly body(44a) is installed around the center of the supporting board(42a) vertically and supports the frame(18) and loads or unloads the frame(18) to the welding location by controlling the location of rising and falling. If the frame(18) is on the location of loading, the side of the frame(18) is between the welding electrode(48a) in correspondence to each other and a clip holder is formed by driving of the holder loading assembly body(32) and the welding portion assembly body(46a) drives the welding electrode(48a).
Patent KR-20000017777-A (KR)
Inventor: CHO SUNG GUK
IPC: H04B1/59
Filed: 1999-12-03
Abstract: PURPOSE: A connecting circuit is provided to prevent deterioration of communication quality and receiving error caused by wave interruption(fading phenomenon) and cut down installation cost. CONSTITUTION: An input/output signal of a frequency conversion repeating installation arranged toward an alpha sector is connected to a signal of a beta sector to be transmitted and received toward the alpha sector. A connection circuit uses a transmitting lines in common and a duplexer for frequency division in a frequency conversion repeating installation or a base station.
Patent KR-20010054352-A (KR)
Inventor: KANG DAE JIN
IPC: F16K37/00
Filed: 1999-12-06
Abstract: PURPOSE: Detecting device and method for the malfunction of a valve are provided to check the operation of the valve according to the operation of a cam sprocket and a crank sprocket by each stroke of an engine. CONSTITUTION: An electronic control unit receives an engine output, battery voltage, and the temperature of cooling water from a vehicle speed sensor, a voltage sensor, and a water temperature sensor to decide the operation state of a vehicle. In case of a normal operation state of the vehicle, input of signals from a cam sensor and a crank position sensor is decided. By input of the signals, errors in the cam sensor and the crank position sensor are detected. In case of detection of the errors, a second alarming instrument is operated. In case of normal states of the cam sensor and the crank position sensor, the electronic control unit receives first and second signals from the crank position sensor and the cam sensor. Then, the first signal corresponding to an elevating terminal and a lowering terminal of the second signal is detected for deciding an order of a tooth on a crank target wheel generating the first signal. In case of the order of the tooth of the crank target wheel located within a normal range, the normal operation of the vehicle is decided. Otherwise, malfunction of the vehicle is decided for operating the second alarming instrument.
Patent KR-20000012456-A (KR)
Inventor: NAM CHUN JA
IPC: A23L33/00
Filed: 1999-12-06
Abstract: PURPOSE: A production method of a stew made of carp and chicken is provided to improve the health by offering the perfume and the taste agreed materials by boiling a carp, a terrapin, and a chicken with a herb materials. CONSTITUTION: The soup of carp and chicken is produced by: preparing ginseng 3-4 roots, chestnuts 8-10 pieces, and jujubes 15-20 pieces by shielding in a filtering rag; preparing by shielding with the filtering rag after removing the scales and the internal organs of a carp 1 piece; purring the terrapin after removing the internal organs with a chicken 1 piece; putting the pressed ginger; boiling the glutinous rice after boiling 20-30 minutes with a boiled soup by taking out separately.
Patent KR-20010056319-A (KR)
Inventor: LEE TAE SEONG
IPC: F02B77/00
Filed: 1999-12-15
Abstract: PURPOSE: A structure for mounting a seal of a wire is provided to save cost by making wire sealing easy and to improve the reliability of a product by preventing the leakage of oil through the wire. CONSTITUTION: A wire(4) penetrates through a hollow plastic housing(2) whose front end is closed while the rear end is opened. A wire seal member(7) seals the plastic housing by covering the open end. An epoxy injection hole(6) is formed in the plastic housing, and an epoxy molding(14) is injected into the plastic housing through the epoxy injection hole. After an empty portion(3) of the housing is filled with epoxy and the plastic housing is supported in an insertion hole(8) of an engine wall face(1), the rear end of the housing is supported on a fixing support member(11) for preventing the separation of the wire seal member and the plastic housing. Therefore, wire sealing work is easily completed. Additionally, seam lines(15) prevent the leakage of oil.
Patent KR-20000052502-A (KR)
Inventor: YASDAHARUMI
IPC: G02F1/13
Filed: 1999-12-17
Abstract: PURPOSE: A method for classifying defects and a method for manufacturing a liquid crystal display device using the same are provided to accelerate the detection of erroneous devices. CONSTITUTION: A method for classifying defects according to the present invention performs classification on plurality of classification operation at one time using various reference signals. The division reference is made by a processor or a reference on the defected device.
Patent KR-20010057962-A (KR)
Inventor: CHOI YONG JUN
IPC: G01F1/66
Filed: 1999-12-23
Abstract: PURPOSE: An ultrasonic flow rate measuring device having a separable amplifier housing is provided to promptly and effectively replace and repair when the ultrasonic flow rate measuring device is out of order. CONSTITUTION: An ultrasonic flow rate measuring device having a separable amplifier housing includes an amplifier housing(70). The amplifier housing is fixed at a rear end of an ultrasonic sensor housing(60) and has an amplifier(19) inside. The amplifier housing is divided into three stages to connect the inside space with an ultrasonic sensor(20). A first stage has a front end fixed on the ultrasonic sensor housing and a rear end having a screw part. A third stage has a front end having a screw part at the circumference and a rear end having a through hole at the center. A second stage has front and rear ends having screw parts screwed with the screw parts of the first and third stage.
Patent KR-20010060837-A (KR)
Inventor: HYUN SEUNG WON
IPC: A23F3/00
Filed: 1999-12-28
Abstract: PURPOSE: An Acanthopanax koreanum granule tea, which keeps the medicine effects and preference of Acanthopanax koreanum as it is, is provided through a method to improve the functions of the tea, increase the using rate of raw materials, and reduce the concentrating time. CONSTITUTION: A method for preparing an Acanthopanax koreanum granule tea comprises: (i) a first step to dry and pulverize Acanthopanax koreanum 90-97wt.%, and licorice or stevia 3-10wt.%; (ii) a second step to extract the pre-treated materials with 30-80% ethylalcohol, extract again residual substances with 30-80% ethylalcohol, extract thirdly with an extractant and filter; (iii) a third step to concentrate for solid content to reach 40-60%; and (iv) a fourth step to combine the concentrated extract 10-20wt.%, diluent 80-90wt.%, and additive 1-5wt.% to form granules, and dry.
Patent KR-20010058732-A (KR)
Inventor: JANG SEOK HUN
IPC: H04B17/00
Filed: 1999-12-30
Abstract: PURPOSE: A method for remotely controlling a system via a SMSC(Short Message Service Center) is provided to inform that an error occurs in the system, and perform a recover operation according to a system analysis and an analysis result. CONSTITUTION: When an alarm message is generated(200), it is transmitted to a mobile terminal of a system manager periodically by predetermined times(210). The system manager tries to connect to a target system where the error occurs(220). An authentication procedure of the system manager is performed(230). If the authentication procedure is successful(240), system status information is requested to an EMSE(External Short Message Entity Agent)(250,260). A message is sent from the target system to the mobile terminal of the system manager(270). The transmitted message is checked and analyzed(280). A script registered in the system is activated(290). The recover operation is performed according to the contents of the message(300,301).
Patent KR-20010058846-A (KR)
Title: The method for controlling the frame and the control device thereof
Inventor: JUN CHAN HUI
IPC: H04B7/155
Filed: 1999-12-30
Abstract: PURPOSE: A frame control device of a base station is provided to reduce overload of CPU for controlling the CSM frame and accommodate more channel cards. CONSTITUTION: A CPU(20) has a synchronous RAM(14) by itself and generates a control signal for performing control functions entirely. A memory control logic(22) has a duplex memory and a synchronous(22a) RAM. An HDLC(High level Data Link Controller)(18) is connected to an external base station, thereby connecting and controlling high level data. A plurality of cell site modems(16) are connected to the memory control logic unit(22). The memory control logic unit(22) comprises a memory unit constructed by a DPRAM and SRAM, a CPU command analysis unit for receiving and decoding the CPU command. The unit(22) further comprises a HDLC analysis unit for receiving and decoding the signal of the HDLC, a CSM analysis unit for receiving and decoding signals of plural CSMs, and an arbitration and control unit for arbitrating and controlling the device.
Patent KR-20010060029-A (KR)
Inventor: LEE HYEON GYU
IPC: H04B1/76
Filed: 1999-12-31
Abstract: PURPOSE: A physical layer collision sensing apparatus in a mobile communication system is provided to heighten the quality of service and the efficiency in an operation of a base station by sensing a channel collision, the basis for determination of it, in a protocol to extend the number of channels of a base station in a radio communication system. CONSTITUTION: A matching filter(21) computes an energy amount of a back diffused data of an orthogonal gold code determined from a collision random access channel data received by a base station. A maximum value detector(24) detects an energy correlation value corresponding to each correlation value among energy amounts of a start timing computed by the matching filter(21), a maximum correlation value detector(25) detects the maximum correlation value among the energy correlation values detected by the maximum value detector(25). a cell detailed preamble determining unit(26) estimates time when the maximum correlation value detected by the maximum correlation value detector(24) is the time when the collision has been sensed and determines a code word on the basis of preamble time information of the estimated time, to differentiate a cell of the back diffused preamble value. A collision word number detector(27) compares the code word determined by the cell detailed preamble determining unit(26) with a cell detailed preamble code table, compares the compared values and the number of erroneously detected code words among the nearest code word sets with a critical value, and detects the number of collision words. A collision determining unit(28) detects the number of collision as sensed on the basis of the number of collision words detected by the collision word number detector(27) and the maximum correlation value detected by the maximum correlation value detector(25), and transmits the detected number of collision as sensed to a medium access control layer.
Patent KR-20010066383-A (KR)
Inventor: HONG BYEONG SEOP
IPC: H01L21/76
Filed: 1999-12-31
Abstract: PURPOSE: A method for manufacturing a semiconductor device is to uniformly oxidize a silicon surface by simultaneously injecting an oxygen gas and a hydrogen gas under a high temperature and a low pressure atmosphere. CONSTITUTION: A pad oxide film(102) is formed on a substrate(100), and a pad nitride film(104) is deposited on the pad oxide film. The pad nitride film and the pad oxide film are patterned through a lithography and etching process using an isolation mask. The exposed substrate is selectively etched by a desired depth to form a trench. After the substrate is loaded into an annealing chamber, an oxygen gas and a hydrogen gas are injected into the chamber to deposit a sacrificial film(106) on a sidewall and bottom of the trench. After the sacrificial film is removed, a liner oxide film(108) is deposited in the trench under a same condition as that of the sacrificial film forming process. The trench is buried with a gap fill oxide film(110) through a high density plasma process.
Patent KR-20000068368-A (KR)
Title: 라체트식 일방향 클러치 조립체
IPC: F16D41/12
Filed: 1997-09-02
Abstract: 라체트식(ratchet) 일방향 클러치 조립체가 개시된다. 상기 조립체는 다수의 노치를 갖는 레이스 또는 샤프트 부재와 같은 내측 부재, 다수의 포켓을 갖는 레이스, 고정자 또는 반동자 부재와 같은 바깥측 부재, 및 상기 노치와 맞물리게 하기 위해 포켓 내에 위치되는 다수의 폴 부재를 구비한다. 폴 부재는 포켓 내에 폴을 정확하게 위치시키기 위해 바깥측 부재의 포켓 내에 피크(peak) 또는 리세스(recess)와 짝을 이루는 피봇 리지(ridge)를 갖는다. 폴의 질량 중심은 폴이 내측 부재의 노치와 맞물리거나 분리되려는 경향을 가질 수 있도록 선택적으로 위치된다. 다른 실시예로, 스프링 부재는 맞물리는 쪽으로 폴 부재 상에 경사력을 제공하도록 이용된다. 가터(Garter) 스프링, 코일 스프링, 리본 스프링, 또는 기타 등등은 상기 목적을 위해 사용될 수 있다. 와셔와 같은 축방향 유지 부재는 본 발명에 또한 사용될 수 있다. 하나 또는 그 이상의 유지(리테이너) 부재는 개선된 방사상의 베어링 성능을 위해 축방향으로 확장하는 플랜지를 더 가질 수 있다.
Patent KR-20000036173-A (KR)
Title: Surface-treated steel plate having low contact resistance and connection terminal member made of the steel plate
Inventor: OHMURA HIDEO
IPC: C09D5/08
Filed: 1997-09-17
Abstract: PURPOSE: The object of the present invention is to provide a surface-treated steel sheet, the surface of which is provided with a coating film formed by using after-treatment solution containing carbon black or graphite, carboxy methylcellulose, and an aqueous organic resin composed of acrylic resin, polyester resin, urethane resin or phenolic resin, thus having a low contact resistance, excellent corrosion-resistance and excellent adhesion of the coating film and to provide a connection terminal member using the above mentioned surface-treated steel sheet. CONSTITUTION: In order to achieve the object, the surface-treated steel sheet of the present invention has a surface provided with a coating film containing carbon black or graphite, carboxy methylcellulose, an aqueous organic resin such as acrylic resin, polyester resin, urethane resin or phenolic resin, and a cross linking agent of the aqueous organic resin, the coating film being formed on a steel sheet which is plated with Zn, Ni, Sn, Co or any alloy of them.
Patent KR-20000068647-A (KR)
Title: 피스톤 펌프
IPC: B60T8/40
Filed: 1998-06-18
Abstract: 본 발명은 유체역학적 자동차 브레이크 장치용 피스톤 펌프(10)에 관한 것이다. 보다 단순하면서도 저렴한 가격으로 제조할 수 있도록 하기 위해 본 발명에서는 배출채널(90,94,96)을 실린더 슬리브 베이스(64)와 폐쇄체(68) 내에 형성된 슬롯으로 구성하였다. 이로써 실린더 슬리브(26)와 폐쇄체(68)는 칩을 발생시키지도 않고 성형법으로 제조될 수 있다. 또한, 배출채널(90)을 실린더 슬리브 베이스(64)에 장착함으로써 제공되는 또하나의 효과는 배출채널이 배출밸브(82)의 밸브시트(84)로부터 축방향으로 좁은 간격으로 이격배치되어 있기 때문에 이로써 소음발생을 막는 효과가 있다는 점이다.
Patent KR-20000049060-A (KR)
Title: Circuit for complementing an ac mains voltage, particularly for resistive loads
Inventor: TORTORA ROSARIO
IPC: H05B39/04
Filed: 1997-10-08
Abstract: PURPOSE: A circuit for complementing an ac mains voltage, particularly for resistive loads is provided to to prevent the reverse flow of a processed portion of the AC supply voltage towards the AC power source and improve the efficiency of an optical source for resistive loads. CONSTITUTION: A circuit for complementing the AC mains supply voltage, particularly for resistive loads, comprising means (3) inserted between an AC power source and a resistive load (8) and adapted to prevent the reverse flow of a processed portion of the AC supply voltage towards the AC power source, and one or more capacitive means (3; 4a-4g) arranged ahead of the resistive load (8); the circuit has the particularity that the values of the one or more capacitive means are chosen, according to table 2, low enough to maintain the AC nature of said AC voltage and to complement, during discharge towards the resistive load (8), the AC supply voltage until a desired value thereof is reached.
Patent KR-20000052860-A (KR)
Title: Hybrid organic-inorganic semiconductor structures and sensors based thereon
Inventor: CAHEN DAVID
IPC: G01N27/414
Filed: 1997-10-29
Abstract: PURPOSE: Provided are hybrid organic-inorganic semiconductor devices and sensors for chemicals and light based thereon. CONSTITUTION: A hybrid organic-inorganic semiconductor device is provided as a sensor for chemicals and light, said device being composed of: (i) at least one layer of a conducting semiconductor such as doped n-GaAs or n-(Al,Ga)As; (ii) at least one insulating layer such as of an undoped semiconductor, e.g. GaAs or (Al,Ga)As; (iii) a thin layer of multifunctional organic sensing molecules directly chemisorbed on one of its surfaces, said multifunctional organic sensing molecules having at least one functional group that binds to said surface and at least one another functional group that serves as a sensor; and (iv) two conducting pads on the top layer making electrical contact with the electrically conducting layer, so that the electrical current can flow between them at a finite distance from the surface of the device. The surface-binding functional group of the multifunctional organic sensing molecule may be one or more aliphatic or aromatic carboxyl, thiol, sulfide, hydroxamic acid or trichlorosilane groups. The functional group that serves as a sensor may be a group suitable for binding and detection of metal ions such as Cu2+, Fe2+ and Ru2+ such as radicals derived from hydroxamic acids, bipyridyl, imidazole and hydroxyquinoline, or a group that is an efficient light absorber at a given wavelength and is suitable for detection of light such as radicals derived from aliphatic or aromatichydroxamates, substituted aromatic groups such as cyanobenzoyl and methoxybenzoyl, bipyridyl, hydroxyquinoline, or imidazolyl groups to which a metalporphyrin or a metal phthalocyanin residue is attached.
Patent KR-20000069443-A (KR)
Title: 다공성 폴리오가노실록산 중합체
IPC: C08J9/28
Filed: 1997-12-11
Abstract: 본 발명은 하기 화학식 I의 중합된 폴리오가노실록산 거대단량체를 포함하는 수화 가능한 다공성 중합체에 관한 것이다. 
     화학식 I 
     
       
     
     상기 화학식 I에서, 
     c는 0내지 5의 범위, 바람직하게는 0 내지 3의 범위이고; 
     M은 동일하거나 상이하고, 분자량의 범위가 100 내지 8000인 이작용성 블록이며, 하나 이상의 M은 하기 화학식 II의 실록산 반복 단위를 포함하는 이작용성 중합체 또는 공중합체로부터의 잔기를 포함하고; 
     L은 동일하거나 상이할 수 있고, 이작용성 그룹이고; 
     Q는 동일하거나 상이할 수 있고, 중합 가능한 그룹이다. 
     화학식 II 
     
       
     
     상기 화학식 II에서, 
     R 1 및 R 2 는 동일하거나 상이할 수 있고, 수소, 치환되지 않거나 치환된 알킬, 알케닐, 알키닐, 아릴, 할로알킬, 할로알케닐, 할로알키닐, 할로아릴, 헤테로사이클릴 및 할로헤테로사이클릴로 이루어진 그룹으로부터 선택된다.
Patent KR-20000070140-A (KR)
Title: 항균성 금속 물품의 제조 방법 및 이러한 방법으로 제조된 항균성 금속 물품
IPC: A01N25/34
Filed: 1998-11-10
Abstract: 본 발명의 금속 물품에 금속 물품의 표면에 항균 성분으로 만들어진 미립자의 분산액 또는 용액을 코팅하고 비열 조건 하에서 생성된 금속 물품의 코팅 표면을 프레스하거나 생성된 금속 물품의 코팅 표면을 문지르는 단순한 단계로 항균성을 제공한다.     또한 통상의 롤링 단계 등은 상기 처리에서 어떤 변화없이 자체로 사용될 수 있는데, 이는 경제적으로 아주 유익하다.     또한, 본 발명에 따른 항균 금속 물품이 비열 조건 하에서 얻을 수 있기 때문에, 항균성은 저하되지 않는다.    또한, 항균성이 약간의 마모로 없어지지 않기 때문에, 탁월한 항균성은 오랜 기간 동안 유지된다.     또한, 금속 물품의 표면 특정, 예를 들어, 색조가 변할 우려는 없다.
Patent KR-20000070494-A (KR)
Title: 적외선 복사 패널
IPC: H05B3/06
Filed: 1998-01-15
Abstract: 적외선 복사 패널은 전기 가열 요소(2)가 장착되는 세라믹 섬유재 벽(1)을 포함하며, 상기 전기 가열 요소는 적외선 복사열을 방출하는 고온으로 가열될 수 있게 전원에 접속되며, 이 가열 요소는 스태플에 의하여 벽에 고정된다.  본 발명은 상기 가열 요소(2)가 벽(1)의 표면(6)과 일정 간격을 두고 그 표면 상에 장착되는 것을 특징으로 한다.
Patent KR-20000076328-A (KR)
IPC: A61K36/00
Filed: 1998-04-07
Abstract: 본 발명은 약 0.1% 내지 2%의 히퍼포린을 함유하는 히퍼리컴 퍼포라툼 엘 (세인트 존 맥아즙)의 개선된 추출물에 있어서, 상기 히퍼포린은 더 장기간 안정성을 가지고 있는 것을 특징으로 하는 히퍼리컴 퍼포라툼 엘의 안정 추출물에 관한 것이다.
Patent KR-20010014147-A (KR)
Title: 낮은 증기상 수분 함량을 유지하는 일회용 흡수 제품
IPC: A61F5/44
Filed: 1998-06-22
Abstract: 본 발명은 고성능의 낮은 재습윤 흡수 코어를 통기성 배면 시이트 물질과 조합함으로써 수득될 수 있고, 실험실용 마네킨에서 상대 습도를 측정하여 평가될 수 있는 사용시 제품과 착용자 사이에 둘러싸인 공간에서의 낮은 증기상 수분을 유지하는 일회용 흡수 제품에 관한 것이다.
Patent KR-20010068812-A (KR)
Title: Multi cotainglense
Inventor: CHUNG SANG TAK
IPC: G02B1/10
Filed: 2000-01-10
Abstract: PURPOSE: A multi coating lens is provided to secure the clean visual field by that each coating layer maintains the same transmitting ratio as the lens even if many coating layers with a lot of materials are formed on the surface of the lens. CONSTITUTION: The multi coating lens(1) includes many coating layers. The first coating layer(2) of dioxide silicon is coated on the both sides of the lens(1). The second coating layer(3) of S1 is coated on the first coating layer(2). The third coating layer(4) of oxide indium tin is coated on the second coating layer(3). The fourth coating layer(5) of dioxide silicon is coated on the third coating layer(4). The fifth coating layer(6) of S1 is coated on the fourth coating layer(5). The sixth coating layer(7) of oxide indium tin is coated on the fifth coating layer(6). The seventh coating layer(8) of dioxide silicon is coated on the sixth coating layer(7). The eighth coating layer(9) of HT 100 is coated on the seventh coating layer(8).
Patent KR-20010069118-A (KR)
Title: The method of fabricating cylindrical capacitor having hemi-spherical grain on its inner surface
Inventor: LEE MI HYANG
IPC: H01L27/108
Filed: 2000-01-12
Abstract: PURPOSE: A method for forming a cylindrical capacitor having a hemispherical silicone protrusion therein is provided to selectively form an HSG protrusion only within a cylindrical capacitor lower electrode. CONSTITUTION: A transistor(104) and a contact pad(106) are formed on a semiconductor substrate(100). A storage node contact(110) is formed through an interlayer dielectric layer(108). An etching stop layer(150) and a mold oxide layer are consecutively deposited on the storage node contact and the interlayer dielectric layer. The mold oxide layer is patterned to form a mold oxide pattern. The mold oxide pattern forms a lower electrode of a capacitor. A dielectric layer is deposited on the mold oxide layer pattern. The dielectric layer is etched on a front surface thereof to form a dielectric layer spacer(156a) on an outside wall of the mold oxide layer pattern. A storage node contact is exposed within the mold oxide layer pattern. A lower electrode material and a sacrificial oxide layer are consecutively deposited on the mold oxide layer pattern. The mold oxide layer pattern is exposed on its upper surface through a smoothing process to separate a storage node. The mold oxide layer and the sacrificial oxide layer are removed by a wet etching process. An HSG protrusion(162) is formed on the storage node to complete a lower electrode(158a). A dielectric substance layer(164) and an upper electrode material(166) are deposited on the structure.