baber/WOPTO huggingface dataset:
Patent KR-20020036334-A (KR)
Title: Change control lever having a structure capable of a length adjustment
Inventor: WOO MIN SU
IPC: B60K20/06
Filed: 2000-11-09
Abstract: PURPOSE: A change control lever is provided to control the length for fitting a body size of a driver and be used easily by a driver. CONSTITUTION: A change control lever(1) includes an external change lever(2) connecting a fork axis and a shift fork and having a form of cylinder; an internal change lever(3) having many locking holes(5) formed toward the length direction in the side as inserting in the external change lever; a locking apparatus having a locking knob(6) to operate the locking pin(7) as inserting to the locking hole of the internal change lever installed in the external change lever; a spring(8) to pressurize the locking pin to locking hole as installing in the inside of the external change lever. The locking pin is divided from the locking hole by pulling the knob. The internal change lever transfers to the length direction in the external change lever. When the whole length of the change control lever is controlled, the knob is released and the locking pin is inserted by the force from the spring. The internal change lever is locked in proper position.
Patent KR-20010051664-A (KR)
Inventor: MIZUTANI SATOSHI
IPC: A61F13/511
Filed: 2000-11-14
Abstract: PURPOSE: To solve such a problem that the excretion is easily left behind in a surface sheet since ridge portions of the corrugated surface sheet are separated from absorptive cores when a conventional sanitary napkin is curved. CONSTITUTION: The surface sheet 2 of the sanitary napkin is provided by alternately forming coarse portions 2c low in fiber density and dense portions 2d high in fiber density on ridge portions 2a of the corrugated nonwoven fabric. When the sanitary napkin is subjected to bodily pressure, the surface sheet 2 is curved and deformed at each coarse portion 2c. Since the ridge portions 2a are not folded by an unreasonable force at the dense portions 2d except the coarse portions 2c, the surface sheet 2 is prevented from being separated from the absorptive core 3. Degradation in permeability and diffusion between the surface sheet 2 and the absorptive core 3 can be prevented, and the excretion received by the surface sheet 2 can be effectively led to the absorptive core 3.
Patent KR-20020037599-A (KR)
Title: Tire rubber composition
Inventor: KANG CHANG HWAN
IPC: B60C1/00
Filed: 2000-11-15
Abstract: PURPOSE: A rubber composition for a tire is provided, to minimize the deterioration of the cross-linking density with improving the tearing strength by using a silicon-based compound containing an alkenyl group s an anti-reversion agent. CONSTITUTION: The rubber composition comprises 100 parts by weight of rubber; carbon black; a processing oil; stearic acid; a wax; sulfur; a curing accelerator; and 0.5-10 parts by weight of 5-silaspiro£4,4|nona-2,7-diene as an anti-reversion agent. Preferably the rubber is a diene-based elastomer comprising a natural rubber.
Patent KR-20020039065-A (KR)
Title: Evaporating apparatus for kimchi refrigerator
Inventor: KIM DAE YEONG
IPC: F25D23/00
Filed: 2000-11-20
Abstract: PURPOSE: An evaporation device of refrigerator for kimchi is provided to improve efficiency of heat transfer between a freezing and a refrigerating maturing compartments and an evaporator. CONSTITUTION: A freezing maturing compartment(F) and a refrigerating maturing compartment(R) are formed by inner cases(53) and placed in a case(51). An evaporator(57) is installed so that a refrigerant pipe(58) is wound around a periphery of each of the inner cases. The refrigerant pipe of the evaporator is formed so that parts of the refrigerant pipe contacting with the inner cases are flat to contact with the refrigerant pipe on surfaces. A section of the refrigerant pipe of the evaporator is slot-shaped.
Patent KR-20020039415-A (KR)
Inventor: KANG HAENG EON
IPC: E01D12/00
Filed: 2000-11-21
Abstract: PURPOSE: A complex bridge is provided to noticeably improve appearance of the bridge having a duplicate and/or triplicate plane and to form the bridge with an economical benefit and to improve wind-resistance required to obtain a strong bridge. CONSTITUTION: The complex bridge with a complicate structural pattern is prepared by adapting different structures at central section and both sides of the bridge with at least four lanes. The bridge comprises a suspending element at the central section while a continuous girder at the both sides forming a floor framework(4) linked by a crosswise pillar(5) and a lengthwise pillar(6); and high-strength horizontal pillar at both ends of the bridge to make the girder as a compression element to endure tensile strength of cables(2) of the suspending element.
Patent KR-20020044307-A (KR)
Title: Impact Absorbing Apparatus of Hood for Car
Inventor: OH MAN JU
IPC: B62D25/12
Filed: 2000-12-05
Abstract: PURPOSE: A shock absorbing apparatus of a hood for a vehicle is provided to minimize the injury on a walker colliding against a vehicle by making a hood of a vehicle deformed or pressurized downward when the walker collides against the hood. CONSTITUTION: A shock sensing lever(10) is formed on the bottom face of an outer panel(2) of a hood. An operating plate(20) having a fixing protrusion(21) is installed at a side of the shock sensing lever. A rotating lever(31) combined with the inside of an inner panel(3) contacts to the bottom face of the shock sensing lever and the fixing protrusion. An unlocking lever(40) is combined with the shock sensing lever and the inside of the hood. A housing(50) is formed in an insertion hole(51) of the inner panel. A tensile spring(52) is installed in the housing. The tensile spring is connected with the operating plate. If a vehicle collides with a walker, the hood is pressurized downward by the shock. A rotating lever(30) and the unlocking lever are separated from the fixing protrusion. The operating plate is pulled by the repulsive force of the tensile spring. Thus, the outer panel is pulled down, and the middle portion of the outer panel is deformed downward.
Patent KR-20020047493-A (KR)
Title: Automatic chip incite device for side trimmer
Inventor: HUH SEUNG GWANG
IPC: B21B1/08
Filed: 2000-12-13
Abstract: PURPOSE: An apparatus for automatically guiding chips into a side trimmer is provided which prevents shaking and twist of the chips by installing a magnet roll and a touch bar roll at the rear of a trimmer chute, and adding attractive force to sheared chips. CONSTITUTION: In an apparatus for automatically guiding chips into a side trimmer in which the chips are cut to a certain unit by guiding the formed chips into a chopper drum(30) using a trimmer chute(20) after forming chips by shearing a strip using a side knife(10), the apparatus comprises a magnet roll(100) which is connected to the rear of the trimmer chute(20), and in which an electric wire is inserted, and a current is impressed to the electric wire so that the magnet roll(100) adds attractive force to the chips led in by forming a magnetic field; a touch bar roll(110) which is positioned at the lower part of the magnet roll(100), on the surface of which uneven shaped touch bars are formed, and which is ascended in a direction of the magnet roll(100) correspondingly to thicknesses of the chips led in so that attractive force is acted on the chips by rotating the touch bar roll(110) in the same number of revolutions as the magnet roll(100) with the chips being held on the touch bars; and a trapezoidal guiding chute(400) which is connected to the rear part of the magnet roll(100) and the touch bar roll(110), and on four sides of which idle rolls are formed so that attractive force is acted on the chips, and the chips are guided within the certain range regardless of directions of the chips led out.
Patent KR-20020046869-A (KR)
Title: A manufacturing technique as well as the goods of the both-sided necktie
Inventor: JEONG SEONG DOO
IPC: A41D25/00
Filed: 2000-12-15
Abstract: PURPOSE: A method for manufacturing a both sided tie and the tie are provided to enable a user to variously use one tie, and to prevent the shape deformation of the tie, thus improving a style of dressing. CONSTITUTION: In order to form the both sided tie, adhesive members(3,5) are attached and sewed at the inner surfaces of a front tie(2) and a rear tie(4), and after that the front tie and the rear tie are turned inside out. The adhesive members are positioned inside the ties with being spaced inward from the rim of the ties. In addition, in a state that the front tie and the rear tie are turned inside out, upper ends of them are sewed and a hole is drilled.
Patent KR-20020048726-A (KR)
Title: Hood with a hinge structure having improved safety in a motor vehicle
Inventor: LEE DONG YEOL
IPC: B62D25/10
Filed: 2000-12-18
Abstract: PURPOSE: A hood for a vehicle having hinge structure improved safety is provided to minimize impact to a body of a pedestrian even though the body of the pedestrian is bumped into a hinge connecting part of a hood in a sudden accident. CONSTITUTION: A hood is hinge-connected in a vehicle body by a bracket in a vehicle body(112) and a bracket in a hood(114). The bracket in the vehicle body has a horizontal part and a vertical part. The horizontal part is fixed in the upper face of a wheel apron(102) by a coupling hole like a bolt. The vertical part of the bracket in the vehicle body has a hinge hole inserted by a hinge pin(117) and a bead to absorb impact is formed according to horizontal direction. The bracket in the hood has a horizontal part and a vertical part. The horizontal part is fixed in the lower face of an inner panel of the hood by a coupling part like a bolt(115). The vertical part of the bracket in the hood has a hinge hole against a hinge hole of the bracket in the vehicle body and a bead(114a) to absorb impact. The hinge pin is fixed as being inserted to penetrate the hinge hole of the bracket in the vehicle body and in the hood and the bracket in the vehicle and in the hood are hinge-connected together. A hinge reinforce member(116) is fixed in the upper face of the inner panel of the hood by the bolt coupling the bracket in the hood to the inner panel of the hood. The screw part of the bolt is protruded toward the lower part of the inner panel of the hood. A bubbling member for buffering is charged in the circumference of the hinge reinforce member and impact is reduced.
Patent KR-20010062551-A (KR)
Inventor: DECOTIGNIE PHILIPPE
IPC: H04M1/66
Filed: 2000-12-20
Abstract: PURPOSE: Protection of a radiotelephone apparatus against theft is provided to protect a mobile wireless phone, containing a user identification module that can activate the mobile wireless phone itself, and to protect the phone against the theft. CONSTITUTION: The mobile wireless phone of this invention includes a means that prevents this phone from being used by an identification module other than that of the user. The phone is also includes a means that prevents the phone from being used, when a block release code is inquired of the user after a short time of the inactivated phone and no code is received from the user.
Patent KR-20020050637-A (KR)
Title: Loading and dumping device of a dump truck on rear and side
Inventor: OH JAE HONG
IPC: B60P1/04
Filed: 2000-12-21
Abstract: PURPOSE: A loader of a damp truck is provided to improve damping performance of the dump truck by loading toward a side direction and to reduce a producing cost by removing a hinge structure of the dump truck. CONSTITUTION: Plural hinge brackets are mounted on an auxiliary frame(2) of an edge portion in a tray. Pins are fixed on the hinge bracket of the auxiliary frame by welding. Auxiliary bracket units are inserted to a pin of the auxiliary frame by being mounted on the tray. Safety pin prevents a hinge from being separated on hinge structure by being arranged on the tray. The auxiliary bracket is used as the hinge while loading on the edges of a vehicle. The safety pin controls a loading direction. Tow cylinders are formed in the middle of the tray. The cylinders are combined to welding structure on a vehicle frame and the tray through a ball joint. Thereby, a loader of a dump truck improves damping performance of the dump truck by loading toward a side direction. Moreover, the loader of the dump truck reduces a producing cost by removing the hinge structure of the dump truck.
Patent KR-20020052642-A (KR)
Title: Differential phase detection device and tracking error signal detecting apparatus employing it
Inventor: JUNG SU YEOL
IPC: G11B7/09
Filed: 2000-12-26
Abstract: PURPOSE: A DPD(Differential Phase Detection) device and a device for detecting a TES(Tracking Error Signal) adopting the same are provided to have a pair of synthesizers synthesizing two binary signals, so that a delay is excluded though one phase difference detector is adopted. CONSTITUTION: A slice unit(75) slices first to fourth signals(a,b,c,d) for a reference level, to binarize the signals. A first and a second synthesizers(77,79) respectively synthesize a binarized first signal(d1) with a binarized third signal(d3) and a binarized second signal(d2) with a binarized fourth signals(d4), to generate and output a first and a second synthesizing signals(sa,sb). A phase difference detector(85) compares the phases of the first and second synthesizing signals, to generate and output a first and a second phase difference signals(pa,pb). And a matrix circuit(87) subtracts the second phase difference signal from the first phase difference signal inputted from the phase difference detector, to output a differential phase signal(pa-pb).
Patent KR-20020046883-A (KR)
Title: a file transfer system with Internet homepage
Inventor: SHIM KAB SU
IPC: G06F17/00
Filed: 2000-12-15
Abstract: PURPOSE: A system for transmitting a file using a homepage is provided to transmit a file to an unspecified person or a person who does not wish to open one's E-mail address by constructing a homepage having a database capable of downloading and storing a file and making a file provider and a file receiver access to the database by inputting a code number. CONSTITUTION: A file provider(1) connects to a homepage(3) for supplying a service. The file provider(1) moves to a file registration page, sets a file name, a file explanation, the number of downloading times, and a downloading term, and registers a file. When a file is registered in a database(4) of the homepage, a code number is automatically embodied in a corresponding file. A file registrant notifies a code number of a corresponding file to other person(2) who wishes to receive the file. The other person(2) connects to the homepage(3), moves to a page for downloading the file, and downloads the file by inputting the code number received by the file registrant through verification.
Patent KR-20020055614-A (KR)
Title: Structure of mounting compressor of air conditioning system for bus
Inventor: LEE HUI TAE
IPC: B60H1/00
Filed: 2000-12-29
Abstract: PURPOSE: An installation structure of compressor of air conditioning system for bus is provided to easily adjust tension by a position-adjusting device without detaching the compressor. CONSTITUTION: A compressor is coupled by bolts to a link structure installed on an engine block and comprising a fixed link(10) having both ends fixed on the engine block and a fourfold link(11) having a pair of links facing with each other and slidably installed to the fixed link and a position adjusting device(20) placed on an end thereof and comprising a supporting part(21) having one end fixed on the engine block, a moving part(22) extended from the end of the fourfold link and installed to move in longitudinal direction and a rack-pinion lever(23) engaged with a rack part formed on one side of the moving part to move the moving part by operation of a rotary lever(26).
Patent KR-20020056238-A (KR)
Title: Organic Electroluminescence Device and Fabrication Method for the same
Inventor: KIM SEONG GI
IPC: H05B33/10
Filed: 2000-12-29
Abstract: PURPOSE: An organic electro luminescence device and a manufacturing method thereof are provided to reduce deformation of a shadow mask due to tension and obtain high resolution and large scale. CONSTITUTION: An organic electro luminescence device comprises a transparent plate, switching elements, pixel electrodes, and an electro luminescence layer including a hole transport layer, an emitting layer and an electron transport layer. When a shadow mask(10) having a quarter number of open parts than that of emitting pixels is used, a red organic emitting layer is formed on an emitting pixel and then the shadow mask(10) is moved once in y-direction and aligned to well align the open part with a next emitting pixel so as to form another red organic emitting layer. Then, the shadow mask(10) is moved further two times to further form the red organic emitting layer. That is, each of red, green and blue organic emitting layers is formed by a 4 scan method.
Patent KR-20020056743-A (KR)
Title: A Power Amplifier for wireless terminal
Inventor: SHIN HUI SUK
IPC: H03F1/32
Filed: 2000-12-29
Abstract: PURPOSE: An amplifier is provided to improve linearity by keeping a constant voltage without a change due to a change of an input signal level through an improvement of a structure. CONSTITUTION: An amplifier comprises an input port(11) supplied with an outer signal, an amplifying part(12) amplifying the power of the outer signal, a bias part(13) supplying current to the amplifying part(12), and an output port(14) transmitting the amplified signal to a system. The bias part(13) further includes a transistor(Q2) and a resistor(R3). At this point, the transistor(Q1) of the amplifying part(12) and the transistor(Q2) of the bias part(13) are made of an HBT(Heterojunction Bipolar Transistor), an HET(High Electron-mobility Transistor), or a MSFET(Metal Semiconductor Field Effect Transistor). At this point, the bias part(13) supplies a constant voltage to the base of the amplifying part(12) by serially connecting the transistor(Q2) and the resistor(R3) to a source voltage(Vbb).
Patent KR-20020058472-A (KR)
Inventor: JANG HEON YONG
IPC: G11C7/18
Filed: 2000-12-30
Abstract: PURPOSE: A dummy bit line structure on a cell block is provided, which prevents a collapse of a dummy bit line by forming a bit line bridge between dummy bit lines. CONSTITUTION: According to the dummy bit line structure on a cell block of a semiconductor device, one end of a pair of dummy bit lines(3) formed on an edge of the cell block are connected, and a bit line bridge(5) is formed between the above dummy bit lines. One of dummy bit lines of 1 column located at the edge of the cell block is located on a dummy field oxide, and another is located on a dummy ISO. The dummy ISO is formed corresponding to 1 column of the cell block edge. And a width of the dummy bit line is equal to a width of a bit line formed in the cell block.
Patent KR-20020058940-A (KR)
Title: Fault-tolerant levitation control system for ems maglev vehicle
Inventor: KIM CHUN GYEONG
IPC: B60L13/00
Filed: 2000-12-30
Abstract: PURPOSE: A fault-tolerant levitation control system is provided to achieve an improved reliability for vehicle operation by maintaining levitation and travel operation in a stable manner even upon occurrence of a fault in one of two choppers. CONSTITUTION: A fault-tolerant levitation control system comprises a levitation controller(30) for generating a levitation control signal through a pulse width modulation; first and second choppers(32,34) connected in parallel to the levitation controller, and which receive the levitation control signal, respectively; first and second electromagnets(36,38) connected in parallel to the output ports of the first and second choppers, respectively; and an acceleration sensor(40) arranged between the levitation controller and first and second electromagnets.
Patent KR-20010021953-A (KR)
IPC: A61K39/385
Filed: 1998-07-17
Abstract: 본 발명은 에이치.인플루엔자(H. influenzae) b형 다당류-수막염균 외막 단백질 접합체, 이의 약학 조성물과, 동물에서 에이치.인플루엔자에 대한 면역 반응을 유도하기 위한 이의 용도에 관한 것이다.
Patent KR-20010022183-A (KR)
Title: 피부 보호용 조성물
IPC: A61K8/72
Filed: 1998-07-07
Abstract: 유기 병아리콩 추출물은 1 nM 이상의 에스트라디올과 동등한 에스트로겐 활성을 제공하도록 하는 양과 같은 양으로 존재하는 경우에는 식물 에스트로겐이다.  유기 병아리콩 추출물을 함유하는 화장품 조성물은 주름살이 있고, 주름지고, 건조하며, 박편이 떨어지고, 노화되거나, 광손상된 피부의 외관을 개선시키고, 피부의 두께, 탄력성, 유연성 및 풍만성을 개선시키는데 유용하다.
Patent KR-20010023132-A (KR)
IPC: H01F27/28
Filed: 1998-08-19
Abstract: A high self resonant frequency inductor and method for making the same is described. The inductor comprises a plurality of horizontal conductor coils vertically spaced apart, including a top conductor coil and a bottom conductor coil, the top and bottom conductor coils each having a conductive termination. Dielectric material extends between and separates the conductive coils and the top and bottom terminations. The dielectric material has a plurality of via holes therein to provide communication between adjacent pairs of the conductive coils, the top conductive coil and top termination, and the bottom conductive coil and bottom termination. A plurality of conductive via connections extend through the via holes to connect the plurality of conductor coils, the top termination, and the bottom termination in series with one another.
Patent KR-20010023185-A (KR)
IPC: C08L5/08
Filed: 1998-08-07
Abstract: A gel made of hyaluronic acid alone which is hardly soluble in a neutral aqueous solution. The hyaluronic acid gel according to Claim 1, which keeps its shape for at least one day in a neutral aqueous solution at 25 DEG C.
Patent KR-20010031813-A (KR)
Title: 결장 폴립 치료용 티로신 키나제 억제제로서의 퀴나졸린유도체의 용도
IPC: A61P43/00
Filed: 1998-11-04
Abstract: 본 발명은 하기 화학식 1의 화합물 또는 약제학적으로 허용되는 이의 염을 결장 폴립 치료 및 억제를 필요로 하는 포유동물에게 투여함을 포함하여, 당해 포유동물의 결장 폴립을 치료하거나 억제하는 방법을 제공한다. 
     화학식 1 
     
       
     
     상기 화학식 1에서, 
     X는 치환되거나 치환되지 않은 페닐이고; 
     R 및 R 1 은 각각 독립적으로 수소, 할로겐, 알킬, 알콕시, 하이드록시 또는 트리플루오로메틸이고; 
     R 2 는 수소, 알킬, 알콕시, 하이드록시 또는 트리플루오로메틸이고; 
     Y는 , , , , , 및 로 이루어진 그룹으로부터 선택된 라디칼이고; 
     R 3 은 각각 동일하거나 상이할 수 있고, 독립적으로 수소, 알킬, 카복시, 카보알콕시, 페닐 또는 카보알킬이고; 
     n은 2 내지 4이다.
Patent KR-20010031816-A (KR)
Title: 로스트 모션 완전 인가방식의 밸브 작동시스템
IPC: F01L13/00
Filed: 1998-11-04
Abstract: 내연 기관 엔진 실린더의 흡기 밸브(26) 및 배기 밸브(56)의 타이밍을 변화시키도록 단일 솔레노이드 밸브(105) 또는 트리거 밸브(80)를 이용하는 로스트 모션 밸브 작동 시스템이다. 솔레노이드는 태핏(20, 50)으로의 오일 공급부(100)를 제어하고, 차례로 캠샤프트 로브에 대응하여 밸브 모션을 결정한다. 시스템은 각 밸브의 독립 제어를 허용하고 흡기 소용돌이, 두개의 밸브 또는 4개의 밸브와 엇갈림 밸브 개방과 같은 향상된 특성을 제공한다. 본 발명은 완전한 가변 시스템의 실질적 이익을 제공하면서도 기계적 캠피동 밸브 트레인의 안정성 및 신뢰성을 보존한다. 본 발명은 각각이 유압 회로에 연결하지 않고 독립적으로 배기 및 흡기 태핏(20, 50)을 제공한다.
Patent KR-20010034542-A (KR)
Title: 네트워크를 통한 동적 분산 컴퓨팅 방법 및 장치
IPC: G06F9/46
Filed: 1999-02-25
Abstract: 클라이언트-서버 환경에서는 컴퓨터 인텐시브 어플리케이션, 또는 렌더링(rendering)과 같은 그래픽 연산과 같은 광범위한 어플리케이션을 처리할 수 있는 많은 서버를 갖는 것이 바람직할 것이다.  이질적인 클라이언트-서버 환경에서, 종래의 시스템은 나중의 실행하기 위해 서버 상에 실행가능한 것들을 정적으로 저장한다.  이는 프로그래머가 서로 다른 오브젝트 모듈을 갖는 클라이언트 머신에서 서버 머신으로 어플리케이션을 운반하는데 많은 시간은 물론, 값비싼 기억장치를 필요로 하였다.  본 발명은, 이질적인 클라이언트-서버 네트워크 내에 동질적인 실행 환경을 생성함으로써 이와 같은 문제점들을 해결한다.  이에 따라, 본 시스템은 컴퓨터 서버 상에 코드를 동적으로 다운로드하고, 컴퓨터 서버 상의 코드를 실행하며, 그 결과를 호출하는 클라이언트 메소드에 반환한다.  이 기법은, 서버 코드가 모든 서로 다른 시스템 상에서 실행될 수 있기 때문에, 다수의 코드 사본이 다운로드되거나 또는 컴파일될 필요가 없다.  이 기법에 따라 설계된 시스템은, 또한 효율적이다.  서버 코드는 일반적으로 클라이언트 상에 국부적으로 컴파일되어, 바이트코드로서 서버에 다운로드된 다음에 실행된다.
Patent KR-20010041960-A (KR)
IPC: B22D11/10
Filed: 1999-03-01
Abstract: A method and apparatus for making a molten film of metal, in particular a steel film, more uniform by strip casting, in which the molten material which is applied to a revolving belt is to have a thickness and properties which are as uniform as possible across the width of the film. To make the film more uniform over its width, forces are introduced into the metal film with a component which is directed oppositely to the direction in which the film is conveyed, which forces make the profile of the molten film of metal more uniform.
Patent KR-20010042012-A (KR)
Title: 액정표시장치
IPC: G02F1/13363
Filed: 2000-02-15
Abstract: 반사층(7)과 제 1 전극(3)을 갖는 제 1 기판과 제2 전극(4)을 갖는 제 2 기판 사이에 트위스트 배향되어 있는 네마틱 결정(6)을 끼워지지하고 액정소자(20)를 구성하여 그 제 2 기판(2)의 외측에 비틀림 위상차판(12)과, 제 1 위상차판(13)과, 제 2 위상차판(14)과, 편광판(11)을 순차 배치하여 단편광판형의 반사형 액정표시 장치를 구성하여, 모든 파장 영역에 걸쳐 낮은 반사율의 흑색표시를 얻고, 높은 콘트라스트로 밝은 표시를 실현한다.