baber/WOPTO huggingface dataset:
Patent KR-940002253-B1 (KR)
Title: Apparatus for arc-spot welding
Inventor: KIM MYONG-KYUN
IPC: B23K11/10
Filed: 1991-10-22
Granted: 1994-03-19
Abstract: The apparatus is constructed that a variable transformer is connected to the positive port of a condenser via a rectifying diode and to a processed object, a phase transformer is connected to the negative port of the condenser, a magnet is connected to the other port of the phase transformer to be grounded to a phase signal detector and to be connected to a negative arc electrode, a program transformer of a coil and bridge rectifying diode is connected between the condenser and phase transformer, an optical signal detector is installed on a portion where the processed object and arc electrode are in contact, thereby increasing efficiency.
Patent KR-930011249-B1 (KR)
Title: Multiple switching controller of 155 mbps class synchronous transmission system
Inventor: SONG KI-HONG
IPC: H04J3/06
Filed: 1991-10-31
Granted: 1993-11-29
Abstract: The multi processor improves the availability of the  service channel and maximizes  the  service  quality  of  the  synchronous transport system. The processor comprises the process control unit (11) outputting the control information (CPC #1 or  CPC  #7);  the circuit processor (12) which handles  the  DS1  signal  using  the control information (CPC #1 or CPC #7);  and  the  module  process tool (13) which performs the unit module  process  function  using the control information (MPC #1, MPC #2) from the process  control tool (11).
Patent KR-940008592-B1 (KR)
Title: Apparatus for making a hole of tube
Inventor: KIM HANG-YONG
IPC: B23K26/382
Filed: 1991-11-13
Granted: 1994-09-24
Abstract: The machine perforates a hole by laser beam. The machine comprises a driving motor (4), a tube (1), a unwinding roll (2), rewinding roll (6), a supporting roller (3), a laser (200), lens (9), mirrors (7,8).
Patent KR-960000945-B1 (KR)
Title: Process for producing polybutylenterephthalate
Inventor: YUN INN-SUN
IPC: C08G63/78
Filed: 1991-11-14
Granted: 1996-01-15
Abstract: Polybutylene terephthalate having high deg. of polymerization is prepd. by : preparing the polybutylene terephthalate where the compsn. of the terminal gp. is satisfied with the formulas (I) and (II) by melt-polymerisation of 1,4-butanediol with dimethyl terephthalate; and solid-polymerising with controlling the elevating rate of temp. in the condition of formula (III). In the process, (I) is COOH+40<=OH<=COOH+100; (II) is CH3+20<=COOH<=CH3+60; (III) is T=kt, 1<K<4. The obtd. high degree of polymerization polyester is useful for a bottle, tire cord or sheet, etc..
Patent KR-940006520-B1 (KR)
Title: Call holding service method in electronic exchange
Inventor: JONG DONG-SU
IPC: H04M3/42
Filed: 1991-12-07
Granted: 1994-07-21
Abstract: The call holding service method comprises the steps of: during a busy state between two subscribers, if a call holding service subscriber depresses a hook switch, providing a dial tone, analyzing a dialed digit and analyzing a called subscriber number; if a called subscriber is an intra-office subscriber, providing a call signal to the called subscriber, providing a ring back tone to a call holding subscriber, and processing a call holding intra-call; if the called subscriber is an extra-office subscriber, processing a call holding outgoing call; and implementing a call holding service busy processing. The method provides service through a general switch without a conference call unit.
Patent KR-950002921-B1 (KR)
Title: Temperature sensor attached cooker
Inventor: TAKEUCHI HACHIRO
IPC: F23N5/14
Filed: 1991-12-30
Granted: 1995-03-28
Abstract: The heat cooker prevents the unexpected extinguisment of fire case, occurring by the wrong temperature sensing that senses diffused flames generated when a cook-pot is lifted for a moment, to improve cooking convenience. The cooker (1) having a temperature sensor comprises a gas burner (2), a gas supplier (3), a gas valve (4), and a computer. The gas valve opens the valve if the electric current is supplied, or closes the valve if the electric current is not supplied. The computer is connected to a ignition button (7), the temperature sensor(8) sensing the temperature of bottom of a cook-pot, and a warning temperature setting device. The computer has a timer to maintain a burning mode for specified time even though the sensed temperature is over the warning temperature.
Patent KR-950012890-B1 (KR)
Title: Plate glass grinding device
Inventor: PARK KYONG
IPC: B24B9/10
Filed: 1992-01-21
Granted: 1995-10-23
Abstract: The glass plate is horizontally held on a rig and a variable angle mounting positions the grinding head and drive motor over the edge for grinding. The grinding fluid is pumped from an agitated tank to the application sprays. The grinding position is surrounded by a circle of air jets which contain the fluid and prevent overspray. The fluid is collected by a tray and is ducted back into the tank. For polishing the grinding head is replaced by a polishing head and the motor speed changed by an inverter circuit. The polishing fluid is taken from a tank adjacent to the grinding fluid tank and the return flow is automatically switched into the polishing tank.
Patent KR-940005485-B1 (KR)
Title: Tyre cord
Inventor: KIM SONG-JUNG
IPC: D02G3/48
Filed: 1992-05-28
Granted: 1994-06-20
Abstract: The tire cord having excellent heat dimensional stability and elasticity at high temperature is composed of the polyester filament fiber, the heat shrink shear stress of that is below 0.1 g/d, and the elasticity of that at 150 deg.C is above 1.6 x 1010 dyne/cm2. The polyester filament fiber consists of more than 95 mole% of polyethylene terephthalate, and has below 4.0 x 105 angstroms3 of volume of crystalline, above 50 % degree of crystal, and below 0.4 g/d of shear stress of max. heat shrinking.
Patent KR-950007415-B1 (KR)
Title: Incineration apparstus
Inventor: KIM WON-SAM
IPC: F23G5/00
Filed: 1992-06-11
Granted: 1995-07-10
Abstract: The incinerator for incinerating the various kinds of wastes such as medical or food-processing wastes, comprises the primary combustion chamber for reserving the incinerating material, the secondary combustion chamber, a connecting means for inducing the gas from the primary chamber to the secondary chamber; a exhausting means for discharging the exhaust gas from the secondary chamber; a microwave generating means for irradiating the microwave to the incinerating material, a drying and pyrolysing the material; a primary combusting means and a primary temp. measuring means provided in the primary combustion chamber; a secondary combusting means for incinerating the gases from the combustion chamber in the secondary chamber.
Patent KR-950012345-B1 (KR)
Inventor: BAKER LELAND R
IPC: F41G7/22
Filed: 1992-06-23
Granted: 1995-10-17
Abstract: 내용 없음.
Patent KR-950013324-B1 (KR)
Title: Shaft-type valve apparatus
Inventor: KIM JONG-HUI
IPC: F01L7/00
Filed: 1992-09-05
Granted: 1995-11-02
Abstract: The valve device having a simplified structure with the suction/ exhaust valve shaft in an internal combustion engine, offers the light-weight structure and improves the fuel-efficiency. The device having a cylinder head(1) with the suction/ exhaust ports(2)(3), comprises the suction/ exhaust valve shaft holes(4)(5) extended from the both sides of the cylinder head and engaged with the respective suction/ exhaust valve shafts(6)(7); connection passage(8) near the suction port(2) for selectively connecting the port(2) according to the rotation of the shaft(6); connection passage(9) near the exhaust port(3) for selectively connecting the port(3) according to the rotation of the shaft(7).
Patent KR-970001392-B1 (KR)
Inventor: KARAKAMA TOSHIYUKI
IPC: G03G21/12
Filed: 1992-09-26
Granted: 1997-02-06
Abstract: 내용 없음.
Patent KR-100234355-B1 (KR)
Inventor: LEE DEUK-HUI
IPC: G11B7/123
Filed: 1992-10-27
Granted: 1999-12-15
Abstract: 이 홀로그램 렌즈를 이용한 광학적 헤드 시스템은 세라믹 기판위에 보조로 설치된 실리콘 기판상에 표면방출용 레이저 다이오드, 그 표면 방출형 레이저 다이오드로부터 방출되는 일 방향의 비임을 입사하는 모니터용 포토다이오드, 신호 탐지용 포토다이오드가 일체로 탑재되어 있다. 
     또한 표면방출형 레이저 다이오드로부터 방출되는 비임은 회절격자 및 홀로그램 렌즈를 통하여 광 디스크로 입사된 후, 반사되어 신호 탐지용 포토다이오드로 입사된다. 
     따라서, 모니터용 포토다이오드 반사비임에 의한 신호간섭의 제거가 가능하게 되고, 생산성 증가에 뛰어난 효과가 있다.
Patent KR-100242889-B1 (KR)
Inventor: DE SOETE GERARD
IPC: B01D53/56
Filed: 1992-11-04
Granted: 2000-02-01
Abstract: 산소와 이산화황을 함유하는 가스를 사용하고 가스를 320 ~ 500K 의 온도에서 탄산나트륨 수화물로 처리하는 산화질소를 함유하는 가스의 정제방법.
Patent KR-950014721-B1 (KR)
Title: Method for coating of zirconia-alumina composite
Inventor: KANG SUK-JUNG
IPC: C04B35/488
Filed: 1992-11-14
Granted: 1995-12-13
Abstract: The method for promoting a phase transition of zirconia from tetragonal to monoclinic comprises heating a mixture of 0.02-2 wt% molybdenum oxide(MoO2) and zirconia(ZrO2) at 1,000-1,400 deg.C And to reinforce the surface of pure zirconia-alumina composite, the composite can be heated in the presence of 0.3-10 wt% MoO2-ZrO2 mixed powder at 1,000-1,400 deg.C. The obtained product has no surface defects, and the method makes it easy to control the remaining stress and the thickness of stressed layer. The size of monoclinic zirconia particle can be smaller by adding the MoO2 as phase transition promoter, for much easier design of material.
Patent KR-960011717-B1 (KR)
Title: Aniline derivatives substituted alkylsulfonate at nitrogen and preparation thereof
Inventor: LEE SEO-BONG
IPC: C08G73/00
Filed: 1992-12-10
Granted: 1996-08-30
Abstract: The aniline derivatives of formula (I) are prepared by reacting aromatic amine of formula (II) with   -bromoalkyl sulphonic acid alkali metal salt made from  M,  -dibromoalkane and alkali metal sulfite. In formula, B is benzene substituted with R1,R2,R3,R4 at 2,3,4,5,6 position of benzene, respectively; R1,R2,R3,R4 are all hydrogen or not, one or two among them are F-, Cl-, Br-, I-, methyl-, methoxy-, nitryl-; n is 2-12; X is H2, Na, Li, K, ammonium, tetramethylammonium, tertraethylammonium.
Patent KR-950006604-B1 (KR)
Title: Switching power source control circuit of range
Inventor: SHIN DONG-MYONG
IPC: H05B6/68
Filed: 1992-12-24
Granted: 1995-06-19
Abstract: The circuit improves productivity by the prolongation of magnetron lifetime and keeps the constant output level during 100/120Hz by the on-time control of switching transistor. The circuit includes an inverter(100) which actuates a series resonance circuit by on-off action of switching transistor, a heating unit(200) which drives a magnetron(MGT) through the double voltage rectifying process, a switching driver(300) which outputs on-off control signals, a clock generator(400) which transfers the divided clock signals to respective system units, an on-time counter(500) which outputs the corresponding control signal to the switching driver(300), a power level controller(600) which outputs the up/down signals(U/D) to the on-time counter(500), a the pulse width modulator(700) which outputs the controlled swtching time to the on-time counter(500).
Patent KR-950008572-B1 (KR)
Title: Sequencial mashing process for starchiness
Inventor: LEE YUL-RAK
IPC: C12G3/00
Filed: 1992-12-29
Granted: 1995-08-03
Abstract: The continuous mashing process consists of (1) 30% of liquefaction (I) and (2) transfering with heating, (3) diluting to 20% solid and (4) saccharification (II) at 60-65'C at pH 4.3 using 2-3 (I) tanks and 1-2 (II) tanks sequentially. The temperature of (I) of 1st tank is started at 70-80'C in barley, 60-82'C in sweet potato and 50-110'C in tapioca, and 80-105'C at 2nd and 90-105'C at 3rd tank. (I) is operated till 30% of (I) and 30-300 cP is obtained.
Patent KR-960008133-B1 (KR)
Inventor: YAMAZAKI SHUNPEI
IPC: H01L29/786
Filed: 1993-02-05
Granted: 1996-06-20
Abstract: 내용 없음.
Patent KR-960009097-B1 (KR)
Title: Semiconductor device isolation method
Inventor: SHIN YUN-SEUNG
IPC: H01L21/76
Filed: 1993-02-15
Granted: 1996-07-10
Abstract: The method is provided to minimize Bird's Beak phenomenon and the increase of leakage current and to remove the defect of isolation region and comprises the steps of: depositing a first oxide layer(31) and a silicon layer(33) on the substrate; forming a second oxide pattern(36) on the silicon layer of the inactive region; forming an oxidation preventing layer; oxidizing the silicon layer below the second oxide pattern where the oxidation preventing layer is not formed; removing the oxidation preventing layer and the remained silicon layer.
Patent KR-100190896-B1 (KR)
Inventor: JEANSON JEAN-FRANCOIS
IPC: A61B17/80
Filed: 1993-02-20
Granted: 1999-06-01
Abstract: 본 발명은 경부 추골을 길게 늘려압축, 고정하여 교정해주는 장치에 관한 것이다. 본 발명의 장치는 근본적으로 후두부의 형태와 각도에 꼭 들어맞는 후두부판(11)(21)에 의해 각각 연장되는 두개의 봉(10)(20)과, 연결 판(30), 적어도 훅(84)(85)이 달린 이 클램프, 봉(10)(20)에 고정된 훅(61), 스크루우(4)(5)로 구성되는데, 스크루우는 후두부에 판(11)(21)(30)을 확실하게 고정해주고 후두부판(11)(21)의 끝에 연결판을 고정하는 것이다.
Patent KR-100274821-B1 (KR)
Inventor: STOPELMAN JORG
IPC: F16L11/04
Filed: 1993-04-26
Granted: 2000-12-15
Abstract: 본 발명은 연료에 대한 배리어로서 작용하는 적어도 하나의 폴리에스테르 베리어층을 포함하는 다층 폴리머 호스 또는 파이프 도관인 것이다. 본 발명의 호스 또는 도관의 바람직한 형태는 내부 폴리아미드 보호층, 외부 폴리아미드 보호층, 베리어층과 내부 보호층사이의 접착촉진층, 베리어층과 외부 보호층사이의 또 다른 접착촉진층을 갖는 것이다.
Patent KR-950006960-B1 (KR)
Title: Multi compact disk player
Inventor: MAENG HYON-JIN
IPC: G11B7/0037
Filed: 1993-05-20
Granted: 1995-06-26
Abstract: a pickup base connected to a main base and buffering an external impact or vibration; a locking means for preventing the vibration of the pickup base when a selected disc is inserted into the set installed with the pickup base; a clamping means for clamping the inserted disc in a state that the pickup base is not vibrating due to the locking means; a tray moving means for inserting the tray into the set in a state that the disc is clamped by the clamping means; a pickup moving means for moving the pickup so as to receive and send an optical signal in a state that the tray is inserted into the set by the tray moving means; and a driving motor for driving the locking means, the clamping means, the tray moving means and the pickup moving means.
Patent KR-970000681-B1 (KR)
Title: Ghost cancelling apparatus for video device
Inventor: KWON CHIL-JOO
IPC: H04N5/21
Filed: 1993-08-31
Granted: 1997-01-16
Abstract: The apparatus is comprised of the following structure, wherein the infinite impulse response filters(22-24) are further comprised of 8 bits, respectively, with preceding 2 bits used for the designation bits, the infinite impulse response filters(25,27,30) are further comprised of 5 bits, respectively, the infinite impulse response filter(21) is provided with a signal of a finite impulse response filter(18) by an adder(19) to eliminate a shadow image then to apply the signal devoid of the shadow image to the adder(19) through an adder(20), the infinite impulse response filter(27) applies the output of the adder(19) through the infinite impulse response filters(22,23), eliminating the shadow image.
Patent KR-960016431-B1 (KR)
Title: Electron gun for crt
Inventor: LEE SOO-KEUN
IPC: H01J29/48
Filed: 1993-09-04
Granted: 1996-12-11
Abstract: The electron gun is characterized by forming a projected part(25,25',35) having a part projected toward the other electrodes around an electron beam-passing hole by being continuous to a vertical blade electrode(21,21',21") or a horizontal blade electrode (31,31',31") on one cross section of the vertical blade electrode and the horizontal blade electrode.
Patent KR-100334686-B1 (KR)
Title: 다중 로구간과 재순환구간을 가지는 유동층 연소시스템 및 그 작동방법
IPC: F23C10/02
Filed: 1993-11-13
Granted: 2002-08-27
Abstract: 본 발명은 다중의 로 구간과 재순환 구간을 가지는 유동층 연소 시스템 및 그 작동방법에 관한 것으로 로 구간 및 집적 재순환 구간을 가지는 각각은 공동벽을 사용하여 결합되고 개구부가 인접하거나 대향하는 로 구간 사이 및 인접한 재순환 구간 사이에서 유동층 물질이 흐르게 하기 위해 공동벽의 하부내에 구비되고 또한 인접하거나 대향하는 로 구간 사이에서 기체 압력을 같게 하기위해 공동벽의 상부에 구비되는 것을 특징으로 한다.
Patent KR-970004835-B1 (KR)
Title: A chip mounter
Inventor: LIM JAE-WON
IPC: H01L21/68
Filed: 1993-12-07
Granted: 1997-04-04
Abstract: An apparatus and a method which judges whether or not components are absorbed and whether or not the components are normally absorbed are disclosed. In the sensing apparatus, a vacuum sensor(501) senses an absorbing vacuum level of a head. A plurality of trimmers(502,503,504) set the absorbing vacuum level of a head. A plurality of comparators(505,506,507) compare output signals of the trimmers(502,503,504) with an analog output signal of the vacuum sensor(501). A plurality of lamps(508,509,510) are respectively connected to outputs of the comparators(505,506,507) and display reaching states of the vacuum level. The outputs of the comparators(505,506,507) are connected to a main control device through an interface.
Patent KR-100228918-B1 (KR)
Inventor: THOMAS TERRY
IPC: C12N15/29
Filed: 1992-04-07
Granted: 1999-12-01
Abstract: 헬리안티닌은 해바라기 배의 11S 종자저장 단백질이다. 
     본 발명은 헬리안티닌 유전자의 5' 조절영역에 관한 것이다.  특히 조직 특이적이거나 일시적으로 조절되거나 앱스시신산에 반응하는 유전자 발현을 지시하는, 이 조절 영역의 특정 시스-조절 요소에 관한 것이다.  본 발명은 이종 유전자(heterologous gene)의 발현을 조절하기 위해 이 유전자의 옆에 연결된 시스-조절인자로 이루어지는 키메릭 유전자를 제공한다.  이 키메릭 유전자는 트랜스제닉 식물에 제초제 내성 및 종자유(seed lipid)의 질 개선을 부여한다.
Patent RO-120570-B1 (RO)
Title: Modular transport carriage
Inventor: VAN VLIET KORNELIS GERARD
IPC: B62B3/02
Filed: 2000-08-02
Abstract: The invention relates to a modular transport carriage employed for transporting, storing and displaying the goods, especially ornamental plants and flowers. According to the invention, the carriage comprises a base frame (1) having at each of its corners some supports (3) made of square or round profiles, wherein there are mounted, by sliding, the supporting pillars (5) provided with orifices (6) cut in parallel planes, meant for mounting the hooks of the shelf modules (10) or grate modules (12), each supporting pillar (5) having a lower portion, articulated by means of a hinge (9) to an upper portion, so as to allow the complete folding of the upper portion over the lower portion, the supporting pillars (5) being stiffened in the mounted state into the supports (3) by means of a sliding locking sleeve (8) whose motion along the supporting pillar (5) is limited by a pin (7).
Patent RO-120392-B1 (RO)
Title: Tyre tread with multifunctional profile
Inventor: SAVONEA IOAN EMIL
IPC: B29D30/06
Filed: 2000-11-07
Abstract: The invention relates to a tyre tread with multifunctional profile for pneumatic tyres and particularly, for low-size radial tyres, meant for equipping light motor vehicles, utility vehicle, truck and similar motor vehicles, whose shape and distribution of element, which constitute the tyre tread profile, provides a high tyre behaviour when used both on the driving axis and the steering axis, in conditions of high speed, speed category M. According to the invention, the tyre tread (1) consists of some continuous circumferencial elements (7 and 7'), located in the tyre equatorial region, separated by a central channel (10) and some transversal elements (8, 8' and 9, 9'), formed by the intersection of some transversal channels (13 and 13'), with the longitudinal channels (11, 11' and 12, 12'), the tyre tread being separated into two areas, by the section width: a median area (LA) which provides, by the contact surface to total surface ratio, a good tyre wear resistance and a comfortable rolling, and two lateral areas (LB), with the "block"-type profile elements (8, 8' and 9.9'), with a general transversal orientation and "V"-shaped edges, oriented in both directions, which provide an equal tyre traction upon the forward-backward rolling; the elements (8' and 9') are rotated to 180 in relation to the ecuatorial plane, fact that drives to an asymmetry of the tyre tread elements, on the width thereof, having positive effects on the noise generation while rolling.
Patent RO-121546-B1 (RO)
Title: Process and installation for purifying water and sulphurous gases resulting from balneotherapy processes
Inventor: CRE ESCU IGOR
IPC: A61L9/00
Filed: 2002-02-04
Abstract: The invention relates to a process and an installation for purifying water and sulphurous gases resulting from the balneotherapy processes. According to the invention, the process consists in entraining sulphured hydrogen from water, by ozonized compressed air barbotage, oxidazing the sulphured hydrogen comprised in the gaseous phase at the water surface by the ozone traces eliminated from water by barbotage and by the supplementary ozone, introduced in the gaseous phase, sucking the resulting gaseous mixture having a low content of unreacted sulphured hydrogen and retaining the same by chemosorption, in a solution of sodium hydroxide having the concentration of 30%, and it is carried on an installation comprising a compressor, an oxygen generator, a basin where there is carried out the oxidation of the sulphured hydrogen in the sulphurous water and in the gaseous phase from the surface thereof, a system for capturing gases, consisting of a hood and a blower, and a gas washer containing sodium hydroxide solution.
Patent RO-120682-B1 (RO)
Title: Automatic clamp for ground and shortcircuit connection for open-air transmission lines
Inventor: TABAN GHEORGHE
IPC: H01R4/28
Filed: 2004-02-26
Abstract: The invention relates to an automatic clamp for ground and shortcircuit connection for open-air transmission lines, meant for preventing the accidental occurrence of voltage in the work place. According to the invention, the automatic clamp for ground and shortcircuit connection for open-air transmission lines consists of a body (1) with an uncoupling ring (2), on the body (1) there being mounted a movable tongue (3) rotating about an axle (4), being permanently pressed by a helical compression spring (5), the movable tongue (3) blocking a clamping yoke (6) having two lateral prominences (b), by means of a shoulder (c) for hanging a blocking axle (7) secured to the clamping yoke (6), while the clamping yoke (6) is permanently under the action of a torsion spring (8) wound about an axle (9) that is also a rotation axle of the clamping yoke (6) and that is secured to the body (1), which, at the lower side has a coupling axle (10) and two lateral cutting-outs (d), and at the upper side another lateral cutting-out (d) and a coupling hole (e) allowing the mechanical coupling of another identical clamp (11), by introducing the coupling axle (10) into the coupling hole (e) and arranging the side prominences (b) into the side cutting-out (d) at the upper side of the body (1), the coupling axle (10) of the coupled clamp pressing on the movable tongue (3) and preventing the accidental triggering of the same, and the lateral cutting-out (d) at the upper side of the body (1) preventing the clamp (11) from detaching by embracing the side prominence (b).
Patent RO-121354-B1 (RO)
Title: Transducer for measuring forces in three directions and measuring method
Inventor: ANGHELACHE GABRIEL CORNEL
IPC: G01L5/16
Filed: 2004-06-10
Abstract: The invention relates to a transducer for measuring forces in three directions, and to a measuring method. According to the invention, the transducer is provided with some arms, horizontal and vertical, respectively, the horizontal arm having some upper and lower surfaces, and the vertical arm having some lateral and front surfaces and an end surface, respectively; on the lower and upper surfaces as well as on the lateral and front surfaces there are secured some resistive tensometric transducers that are electrically connected two by two on opposite sides in Wheatstone semibridges, or four by four in complete Wheatstone bridges. According to the invention the applied method consists in balancing the Wheatstone bridges so that the output voltage of each bridge is null, thereafter there follows the calibration of each transducer for the x, y and z directions, followed by determining the constants kx, k'x, ky, kz for converting the forces into relative elongations and the measuring of forces is carried out upon a vehicle passing over the transducers.