baber/WOPTO huggingface dataset:
Patent WO-2020091272-A1 (WO)
Title: Multifactor-based password authentication
Inventor: HWANG YOUNG MAN
IPC: G06F21/46
Filed: 2019-10-17
Abstract: A system and method are disclosed to improve password security assigned to a user, the method comprising: a method for performing enhanced security authentication, the method comprises: generating one-time password, by a security server, by filtering original password characters, wherein a security server provides a display on a hardware display screen, in which a plurality of keys are arranged and at least one selected from the arranged keys is used to filter original password characters; storing, by a memory unit, the original password and the one-time password generated; determining, by the security server, whether a user's password entered on the hardware display screen be accepted by comparing the entered password with the one-time password. The system comprises a storage module and a computer program for performing the method.
Patent WO-2020246663-A1 (WO)
Title: Highly heat resistant nanohybrid siloxane insulation material and preparation method therefor
Inventor: KANG DONG JUN
IPC: C08K3/36
Filed: 2019-10-21
Abstract: The present invention relates to a highly heat resistant nanohybrid siloxane insulation material and a preparation method therefor and, more specifically, to: a highly heat resistant nanohybrid siloxane insulation material having high heat resistance and also having basic insulation characteristics through the mixing of surface-treated silica nanoparticles and an oligosiloxane comprising a siloxane structure; and a preparation method therefor. The technical subjects of the present invention are: a highly heat resistant nanohybrid siloxane insulation material comprising surface-treated silica nanoparticles and an oligosiloxane, which comprises a siloxane structure having at least one from among an alkyl group, an aryl group and an organic group; and a preparation method therefor.
Patent WO-2020091356-A1 (WO)
Inventor: KIM JUN-YEOB
IPC: H03K17/567
Filed: 2019-10-28
Abstract: A driver circuit for controlling a P-channel MOSFET comprises: a first voltage divider having one end connected to a source terminal of the P-channel MOSFET; a first sub transistor including a first collector terminal, a first emitter terminal, and a first base terminal, wherein the first emitter terminal is connected to the other end of the first voltage divider; a second sub transistor including a second collector terminal, a second emitter terminal, and a second base terminal, wherein the second emitter terminal is connected to a gate terminal of the P-channel MOSFET, and the second base terminal is connected to a first connection node; a third sub transistor including a third collector terminal, a third emitter terminal, and a third base terminal, wherein the third emitter terminal is connected to the second emitter terminal, and the third collector terminal is connected to ground; and a third resistive element connected between the second collector terminal and the second emitter terminal.
Patent WO-2020096257-A1 (WO)
Inventor: KIM KYUNG WON
IPC: H04N5/232
Filed: 2019-10-29
Abstract: An embodiment relates to a camera actuator and a camera module including same. The camera actuator according to the embodiment can comprise: a base; a lens assembly arranged on the base; a guide pin coupled to the base and guiding the lens assembly; a body coupled to the base; a cover coupled to the body; a base pin coupling part arranged on the base and coupled to one side of the guide pin; a cover pin coupling part arranged on the cover and coupled to the other side of the guide pin; and a pin guide part which is arranged on the lens assembly and which guides the guide pin. In the embodiment, the base pin coupling part can comprise a first coupling groove, the cover pin coupling part can comprise a first groove, and the pin guide part can comprise a first hole and a second hole having a size different from that of the first hole.
Patent WO-2020111549-A1 (WO)
Inventor: LEE HAN-YOUNG
IPC: H01M50/574
Filed: 2019-11-04
Abstract: Provided are a battery module having improved safety by being capable of blocking a current during a temperature increase, a battery pack comprising the battery module, and a vehicle comprising the battery pack. The battery module according to the present invention comprises: a busbar having a mostly plate shape with a thin thickness compared to the length and width thereof, and having respective linear grooves on the left surface and right surface thereof in a longitudinal direction; and battery cells located on each of the left surface and the right surface of the busbar, and electrically connected to each other with the busbar therebetween by coming in physical contact with each other through the insertion of respective electrode leads in the grooves, wherein the sizes of the grooves in the thickness direction thereof increase at a predetermined temperature or higher so that the electrode leads and the busbar no longer make physical contact, and thus the battery cells are electrically disconnected.
Patent WO-2020101251-A1 (WO)
Inventor: OH GOO TAEG
IPC: G01N33/68
Filed: 2019-11-05
Abstract: The present invention pertains to: a marker composition for diagnosing atherosclerosis severity; a composition for diagnosing atherosclerosis severity; an atherosclerosis severity diagnosis kit comprising the composition; a method for screening substances for preventing or treating atherosclerosis; and a method for providing information about a diagnosis of atherosclerosis severity, wherein LGI3 expression or activity levels are used. According to the present invention, the severity of atherosclerosis can be diagnosed or predicted, and personalized medicine and predictive medicine can be practiced using such information. Moreover, the present invention can treat atherosclerosis without affecting other metabolic phenotypes by administering an LGI3 antagonist.
Patent WO-2020149552-A1 (WO)
Inventor: LEE KI SE
IPC: A61N1/40
Filed: 2019-12-31
Abstract: RF니들을 이용한 피부미용기가 개시된다. 실시예에 따르면, 다수의 니들이 형성된 피부접촉부를 구비하고, 피부접촉부에 흡입력을 발휘하는 진공압력형성부가 포함되는 것으로, 진공압력에 의해 피부를 당겨서 니들이 피부에 삽입될 수 있도록 한다. 이에 따르면, 피부를 석션으로 당겨서 장비 접촉면이 정확하게 접촉되어 바늘이 피부 내층에 정확히 삽입될 수 있는 효과가 있다.
Patent WO-2020166874-A1 (WO)
Title: 신규한 화합물 및 이를 이용한 유기발광 소자
Inventor: HA JAE SEUNG
IPC: C07D333/58
Filed: 2020-02-05
Abstract: 본 발명은 신규한 화합물 및 이를 이용한 유기발광 소자를 제공한다.
Patent WO-2021145504-A1 (WO)
Title: Sliding plate capable of printing at high resolution and high speed
Inventor: LIM JIN HONG
IPC: B41J2/045
Filed: 2020-03-02
Abstract: Provided is a printing module having a sliding plate capable of direct printing at high resolution and high speed. The printing module is a printing machine for printing information on a product moving on a conveyor belt, and is characterized by comprising: a head unit including a plurality of heads for performing printing by spraying ink onto the product; and an electronic control unit for controlling the plurality of heads to print the same information on the same point on the product.
Patent WO-2020204394-A1 (WO)
Inventor: AHN BUM MO
IPC: H01L21/677
Filed: 2020-03-12
Abstract: La présente invention peut fournir un dispositif de saisie par adsorption de microéléments caractérisé en ce qu'il comprend une partie d'adsorption pour adsorber des microéléments, la partie d'adsorption étant composée d'un élément poreux.
Patent WO-2021002568-A1 (WO)
Inventor: LEE KI HEON
IPC: B24B49/16
Filed: 2020-03-30
Abstract: Un mode de réalisation de la présente invention concerne un système de polissage comprenant : une unité de polissage comprenant une partie disque de polissage, et une unité de rotation destinée à faire tourner la partie disque de polissage autour d'un arbre rotatif ; et une unité d'entraînement qui commande le mouvement linéaire de l'unité de polissage de telle sorte que la force de contact mutuelle au niveau de la surface où un corps à polir et l'unité de polissage sont en contact l'un avec l'autre est uniforme dans la direction de polissage.
Patent WO-2021033882-A1 (WO)
Inventor: KIM SUHWOOK
IPC: H04W72/14
Filed: 2020-05-29
Abstract: 무선랜(Wireless Local Area Network) 시스템에서, STA(station)은 저지연 큐(low latency queue) 활성화 신호를 전송할 수 있다. 상기 STA은 저지연 큐 활성화 승인 신호를 수신할 수 있다. 상기 STA은 저지연 큐를 통해 데이터를 전송하는 단계를 포함할 수 있다.
Patent WO-2021040201-A1 (WO)
Title: Electronic device and method for controlling same
Inventor: LEE JAECHEOL
IPC: G10L15/22
Filed: 2020-06-04
Abstract: Disclosed is an electronic device. The electronic device comprises: an acoustic amplification unit; a speaker; a microphone; a microphone acoustic amplification unit; and a processor which amplifies an audio signal through the acoustic amplification unit, outputs the amplified audio signal through the speaker, and when the audio signal output through the speaker and a user's voice signal are input to the microphone, amplifies the signal input to the microphone through the microphone acoustic amplification unit, acquires a voice signal by performing acoustic echo cancellation on the amplified signal, and performs voice recognition preprocessing of the acquired voice signal. The processor determines the gain of the microphone acoustic amplification unit on the basis of the gain of the acoustic amplification unit, and amplifies the signal input through the microphone acoustic amplification unit on the basis of the determined gain.
Patent WO-2021025524-A1 (WO)
Inventor: CHEON BYUNG CHUL
IPC: F01D1/16
Filed: 2020-08-07
Abstract: Disclosed are an impulse turbine and a turbine device. The disclosed impulse turbine includes a cylindrical body having an axial hole, and a blade unit arranged to surround the circumference of the body. The blade unit includes a cylindrical base arranged to surround the circumference of the main body, and a plurality of unit blades radially arranged in a line along the circumference of the base. Each of the unit blades includes an outlet that discharges fluid, sprayed onto the unit blade, in a direction different from the fluid spray direction, but does not discharge the fluid toward the other unit blades.
Patent WO-2021221236-A1 (WO)
Inventor: CHOI DONGWAN
IPC: A61L2/24
Filed: 2020-08-20
Abstract: The present invention relates to a mobile robot comprising: a driving unit for providing moving power of the robot; a communication unit for exchanging data with at least one external electronic device; and a control unit for receiving, through the communication unit, sensing data sensed by a sensor device, and controlling the driving unit on the basis of the sensing data.
Patent WO-2021101049-A1 (WO)
Title: 단일 신호 형광 물질을 이용한 실시간 타겟 핵산 검출 및 정량 방법
Inventor: WON BYOUNG YEON
IPC: C12Q1/6851
Filed: 2020-09-15
Abstract: 본 발명은 실시간 및 고속으로 핵산을 검출 및 정량하는 방법에 관한 것으로, 본 발명은 연속적인 온도 조절 하에서 단일 신호 형광 물질을 사용하여 단일 파장의 광원에서 형광 신호를 측정할 수 있어 구조가 단순하고 소형화 및 경량화된 실시간 고속 PCR 방법을 제공할 수 있다.
Patent WO-2021080340-A1 (WO)
Title: Novel compound and organic light-emitting diode using same
Inventor: KIM MINJUN
IPC: C07D405/14
Filed: 2020-10-22
Abstract: The present invention provides a novel compound and an organic light-emitting diode using same.
Patent WO-2022085828-A1 (WO)
Inventor: BAE JANG WON
IPC: H01R25/16
Filed: 2020-10-23
Abstract: 본 발명에 의하면, 일방향을 따라서 길게 연장되는 트랙 몸체와, 상기 트랙 몸체의 길이방향을 따라서 연장되고 상기 트랙 몸체의 내부에 설치되는 제1 전원 전극선 및 제2 전원 전극선을 구비하는 트랙 모듈; 및 전원 수요 장치용 단자가 접속되고 상기 트랙 모듈에 탈착 가능하게 결합되는 전기 출력 모듈을 포함하며, 상기 트랙 몸체의 상면에는 주 결합홈이 형성되며, 상기 전기 출력 모듈은 고정체와, 상기 고정체에 대해 회전축선을 중심으로 축회전하도록 상기 고정체에 결합되는 회전체를 구비하며, 상기 회전체는 상기 고정체로부터 상기 회전축선을 따라 연장되는 기둥부와, 상기 전원 수요 장치용 단자와 전기적으로 연결되고 상기 기둥부의 측면으로부터 돌출되는 제1 전원 연결 단자 및 제2 전원 연결 단자와, 상기 기둥부의 끝단에 형성되는 돌출부를 구비하며, 상기 주 결합홈의 바닥에는 상기 길이방향을 따라서 연장되는 안착홈이 형성되는 전기 분배 장치가 제공된다.
Patent WO-2021118100-A1 (WO)
Inventor: PARK JI HYE
IPC: H01M4/62
Filed: 2020-11-19
Abstract: The present invention relates to a method and device for evaluating the thickness-direction dispersion of a binder in a mixture layer of an electrode. The thickness-direction dispersion of the binder in the mixture layer of the electrode can be evaluated through a non-destructive method.
Patent WO-2021118164-A1 (WO)
Title: Lave-linge
Inventor: FUNAKOSHI HIDEKAZU
IPC: D06F37/40
Filed: 2020-12-03
Abstract: L'invention concerne un lave-linge. Ce lave-linge comprend une cuve, un tambour conçu pour pouvoir tourner dans la cuve, un pulsateur conçu pour pouvoir tourner dans le tambour, un dispositif d'entraînement conçu pour entraîner le tambour et le pulsateur, ainsi qu'un dispositif de commande conçu pour commander au dispositif d'entraînement de faire tourner le pulsateur dans une seconde direction tout en faisant tourner le tambour dans une première direction. Le dispositif de commande commande au dispositif d'entraînement d'entraîner le pulsateur sur la base d'une position du linge reçu dans le tambour pendant une rotation du tambour.
Patent WO-2021137594-A1 (WO)
Title: Method for forming material film by using surface protection material
Inventor: LEE GEUN SU
IPC: C23C16/44
Filed: 2020-12-29
Abstract: A method for forming a material film by using a surface protection material, according to one embodiment of the present invention, comprises: a precursor supply step of supplying a precursor into a chamber in which a substrate is placed, so that the precursor is adsorbed on the substrate; a step of purging the inside of the chamber; and a material film formation step of supplying a reactive material into the chamber, so as to react same with the adsorbed precursor and form a material film, wherein the method further comprises, before the material film formation step, a surface protection material supply step of supplying a surface protection material so that same is adsorbed on the substrate, and a step of purging the inside of the chamber.
Patent WO-2021145650-A1 (WO)
Inventor: KWAK MUN CHEON
IPC: B26D1/22
Filed: 2021-01-12
Abstract: 본 출원은 필름 재단 장치로서, 나이프와 나이프 홀더 사이 공간이 최소화되도록 나이프 홀더의 형상을 가공함으로써, 재단 시 나이프와 나이프 홀더 사이의 공간에 의해 발생할 수 있는 크랙을 방지하는 재단 장치를 제공한다.
Patent WO-2021172904-A1 (WO)
Inventor: KIM Wanhee
IPC: E06B3/70
Filed: 2021-02-25
Abstract: Disclosed in the present invention is a technology capable of replacing an exterior panel of a refrigerator. A refrigerator door according to an embodiment of the present invention comprises: a frame assembly which is arranged in parallel at both sides thereof so as to form the edge of the refrigerator door, and which has a hollow portion formed in the longitudinal direction; a front panel coupled to one side of the frame assembly so as to form the front surface of the refrigerator door; a rear panel coupled to the other side of the frame assembly so as to form the rear surface of the refrigerator door; and a reinforcing panel disposed between the front panel and the rear panel, wherein the frame assembly or the reinforcing panel has coupling grooves formed to be recessed rearward at one side facing the front panel, the coupling grooves are formed at both sides thereof and are arranged to be spaced in the vertical direction, and the front panel has, on the rear surface thereof, coupling protrusions that each have at least a portion accommodated in and fixed to the coupling grooves.
Patent WO-2021194324-A1 (WO)
Title: 무선 통신 시스템에서 보안 mbs 통신을 위한 방법 및 장치
Inventor: BAEK SANGKYU
IPC: H04W76/40
Filed: 2021-03-29
Abstract: 무선 통신 시스템에서 보안 MBS 통신을 위한 방법 및 장치가 개시된다. 본 개시의 일 실시예에 따른 무선통신시스템에서 단말의 동작 방법은, MBS (multicast and broadcast service) 데이터에 적용하기 위한 설정 정보를 기지국으로부터 수신하는 단계; 및 상기 설정 정보에 기초하여, 상기 MBS 데이터를 수신하는 단계;를 포함하고, 상기 설정 정보는, 상기 MBS 데이터에 대응하는 상태 변수의 초기 값을 설정하기 위한 것일 수 있다.
Patent WO-2021235796-A1 (WO)
Title: Method and device for transmitting and receiving data in wireless communication system
Inventor: BAEK SANGKYU
IPC: H04L5/00
Filed: 2021-05-17
Abstract: The present disclosure relates to a method and device for transmitting and receiving data in a wireless communication system. A method for operating a terminal in a wireless communication system comprises the steps of: identifying whether a PUCCH resource related to the transmission of a scheduling request overlaps in time with a PUSCH resource related to the transmission of message A, when the transmission of the scheduling request is pending and logical channel-based prioritization has been set for a MAC entity of the terminal; identifying whether the PUCCH resource related to the scheduling request transmission overlaps in time with a PUSCH resource related to uplink data, when the PUCCH resource related to the scheduling request transmission does not overlap in time with the PUSCH resource related to the transmission of message A; and transmitting the scheduling request or the uplink data to the base station, when the PUCCH resource related to the scheduling request transmission overlaps in time with the PUSCH resource related to the uplink data.
Patent WO-2021256722-A1 (WO)
Title: Slave bms for diagnosing error of battery module and battery pack including slave bms
Inventor: LEE YE SEUL
IPC: H01M10/42
Filed: 2021-05-28
Abstract: The present invention provides a battery pack including a slave BMS for diagnosing an error of a battery module. The battery pack of the present invention includes a master BMS and a first slave BMS. When an error has occurred in a first battery module, the first slave BMS determines whether the error is fatal. The first slave BMS communicates with the master BMS in a time period corresponding to the ID (identification) of the first slave BMS, changes the ID based on whether the error is fatal, and outputs information on the error to the master BMS in a time period corresponding to the changed ID.
Patent WO-2022010272-A1 (WO)
Title: Electronic brake system and operation method thereof
Inventor: KIM JINSEOK
IPC: B60T7/04
Filed: 2021-07-07
Abstract: An electronic brake system is disclosed. An electronic brake system according to the present embodiment may be provided by including: a reservoir in which a pressure medium is stored; an integrated master cylinder which is connected to a brake pedal to discharge the pressure medium by an operation of the brake pedal and provides a pedal feeling to driver; a hydraulic pressure supply device for operating a hydraulic piston by an electrical signal output corresponding to a displacement of the brake pedal, to generate a hydraulic pressure in a single pressure chamber; and a hydraulic pressure control unit which is provided between the hydraulic pressure supply device and multiple wheel cylinders and controls a flow of the pressure medium supplied to the multiple wheel cylinders.
Patent WO-2022030995-A1 (WO)
Title: Electronic apparatus including fixing structure for fixing substrate
Inventor: YOON HYUNJOONG
IPC: H04M1/02
Filed: 2021-08-04
Abstract: Disclosed is an electronic apparatus. The electronic apparatus comprises: a housing; a display module disposed inside the housing and forming a portion of the surface of the electronic apparatus; a first substrate which is disposed inside the housing, and includes a first surface facing the display module and a second surface on the opposite side from the first surface; and a fixing structure for fixing the first substrate to the housing. The fixing structure includes a first boss protruding from the inner surface of the housing toward the first substrate and including a first screw hole, a reinforcing member disposed on the first substrate, and a screw passing through the first boss and the reinforcing member. The first boss includes a support portion, which supports a second surface of the first substrate, and an extension portion, at least a portion of which extends from the support portion so as to protrude to a first surface of the first substrate. The reinforcing member can be configured to press the first surface of the substrate. Various other embodiments that can be understood through the specification are also possible.
Patent WO-2022080774-A1 (WO)
Title: Speech disorder assessment device, method, and program
Inventor: KIM HYANGHEE
IPC: G10L25/48
Filed: 2021-10-08
Abstract: The present invention relates to a speech disorder assessment device, and comprises: a communication unit which receives recording data including an utterance voice recorded while performing at least one utterance task by a person subject to speech disorder assessment; and a control unit which assesses the received recording data on the basis of preconfigured criterion data, determines, on the basis of the result of the assessment, at least one of whether the person has a speech disorder, and the severity thereof, and outputs information indicating the result of the determination.
Patent WO-2022080800-A1 (WO)
Title: 가스렌지 및 인덕션렌지 겸용 조리장치
Inventor: LEE DONG HEE
IPC: F24C11/00
Filed: 2021-10-12
Abstract: 본 발명의 하나의 실시례에 관한 가스렌지 및 인덕션렌지 겸용 조리장치는, 안착된 조리용기에 대해 코일에 의한 유도가열과 가스에 의한 연소가열이 필요에 따라 동시에 또는 이시(異時)에 이루어지는 상판을 구비하는 케이싱; 상판의 하측에 설치되어 조리용기에 대한 유도가열이 이루어지도록 하는 유도가열코일; 및 상판의 하측에 설치되어 동일한 조리용기에 대한 연소가열이 이루어지도록 하는 가스버너;를 포함한다. 이에 의하면, 가스렌지 기능과 인덕션렌지 기능을 필요에 따라 선택적으로 동시에 또는 이시에 사용할 수 있도록 함으로써, 조리 효율 증대와 조리 제약을 해소할 수 있고, 유도가열코일과 가스버너와의 분리 구조 및 배치로 인하여 서로 간의 영향을 최소화하면서 안정적인 동작을 수행할 수 있으며, 가스버너로의 산소 공급과 이로부터 연소가스의 배출이 원활하게 이루어지도록 할 수 있고, 휴대용 가스용기의 사용을 통해 사용장소에 대한 제약을 해소할 수 있는 효과를 가진다.
Patent WO-2022080870-A1 (WO)
Title: 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차
Inventor: KWON MIN-HO
IPC: H01M10/643
Filed: 2021-10-13
Abstract: 본 발명의 일 실시예에 따른 배터리 모듈은, 양극이 하방을 향하고 음극이 상방을 향하도록 기립 배치되는 복수 개의 원통형 배터리 셀들; 상기 복수 개의 배터리 셀들을 수용하는 셀 하우징; 상기 셀 하우징의 상측을 모두 커버하며, 상기 복수 개의 배터리 셀들 각각의 양극과 전기적으로 연결되는 탑 플레이트; 상기 탑 플레이트와 대향 배치되어 상기 셀 하우징의 하측을 모두 커버하며, 상기 복수 개의 배터리 셀들 각각의 음극과 전기적으로 연결되는 바텀 플레이트; 및 상기 셀 하우징 내에 상기 복수 개의 배터리 셀들이 부분적으로 잠길 수 있게 채워지며, 상기 복수 개의 배터리 셀들의 냉각시키는 상변화물질; 을 포함한다.
Patent WO-2022086308-A1 (WO)
Inventor: SONG KI DONG
IPC: H01H33/22
Filed: 2021-10-25
Abstract: 본 발명은 전기 장치의 전기 절연 또는 아크 소호에 사용되는 절연 가스와 이를 이용하여 전기를 절연시키는 전기 장치에 관한 것이다. SF 6  가스를 대체할 수 있는 본 발명의 절연 가스는, 트리플루오로메틸 트리플루오로비닐 이써(CF 3 OCFCF 2 )와 캐리어 가스의 혼합 가스로 이루어진다. 본 발명의 절연 가스는 낮은 끓는점, 높은 절연내력, 낮은 독성 및 낮은 지구온난화지수(GWP 1 이하)의 특성을 보유함에 따라 SF 6 를 대체할 수 있고, 높은 절연 능력과 아크 소호 능력을 유지하면서도 지구온난화지수가 낮아 온실 가스를 감축시킬 수 있다.
Patent WO-2022092750-A1 (WO)
Title: Matériau composite d'électrode flexible et son procédé de préparation
Inventor: SONG WOOSEOK
IPC: H01B1/04
Filed: 2021-10-26
Abstract: La présente invention concerne un matériau composite d'électrode flexible et son procédé de préparation, et plus précisément : un matériau composite d'électrode flexible susceptible de conserver ses caractéristiques électriques même dans un environnement extrême tel que celui d'une température élevée, d'une humidité élevée et en milieu sous-marin ; et son procédé de préparation. Le matériau composite de la présente invention peut comprendre : un substrat comprenant du carbure de molybdène (Mo2C) ; une couche de graphène revêtant la surface du substrat ; et une structure de graphène s'étendant à partir de la couche de graphène pour avoir une structure de corail.
Patent WO-2022092834-A1 (WO)
Inventor: MA JAE YEOL
IPC: C07D327/04
Filed: 2021-10-28
Abstract: La présente invention concerne un procédé de préparation d'un composé ester d'acide sulfonique cyclique et permet d'obtenir un procédé économique de préparation d'un composé ester d'acide sulfonique cyclique. Selon l'invention, grâce à un agent de cyclisation seul dans un état exempt de catalyseur, la production de masse est possible avec une pureté élevée et un rendement élevé, et un procédé de réaction est simple.