baber/WOPTO huggingface dataset:
Patent IN-161795-B (IN)
Inventor: JEAN-PIERRE MACHON
IPC: C08F2/38
Filed: 1983-12-21
Abstract: 1. A continuous process for the manufacture of ethylene homopolymers or copolymers of ethylene with at least one alpha-olefin having from 3 to 8 carbon atoms, successively comprising : a) a first step for (co)polymerizing ethylene at a temperature between 180 and 320 degrees C, under a pressure between 300 and 2 500 bars, in the presence of a catalytic system comprising on the one hand at least one halogenated compound of a transition metal of groups IVa to VIa of the Periodic System and on the other hand at least one activator selected from hydrides and organo-metallic compounds of metals of groups I to III of the Periodic System, the molar ratio of the activator to the transition metal compound being between 1 and 10, b) a second-step for separating the (co)polymer formed from the unreacted monomer(s), under a pressure of between 100 and 500 bars, c) a third step for recycling the unreacted monomer(s), and d) a fourth step for recompression up to the (co)polymerisation pressure, characterized by introducing into the reaction mixture, at the end of the first step, at least one compound selected from monoketones having from 3 to 10 carbons atoms, diketones having from 4 to 11 carbon atoms, monoalcohols having from 1 to 14 carbons atoms, polyalcohols having from 2 to 10 carbon atoms, and water.
Patent MX-356221-B (MX)
Title: Hetero compound.
Inventor: HIRONORI HARADA
IPC: A61K31/4353
Filed: 2007-04-02
Abstract: It is intended to provide a useful compound as an active ingredient of a preventive and/or therapeutic agent for rejection in the transplantation of an organ, bone marrow, or tissue, an autoimmune disease or the like which has an excellent S1P1 agonist effect. Because the compound of the invention has an S1P1 agonist effect, it is useful as an active ingredient of a therapeutic agent or a preventive agent for a disease caused by unfavorable lymphocytic infiltration, for example, an autoimmune disease such as graft rejection in the transplantation of an organ, bone marrow, or tissue or graft-versus-host disease, rheumatic arthritis, multiple sclerosis, systemic lupus erythematosus, nephrotic syndrome, encephalomeningitis, myasthenia gravis, pancreatitis, hepatitis, nephritis, diabetes, pulmonary disorder, asthma, atopic dermatitis, inflammatory bowel disease, atherosclerosis, or ischemia-reperfusion injury or an inflammatory disease, and further, a disease caused by the abnormal growth or accumulation of cells such as cancer or leukemia.
Patent MX-343075-B (MX)
Title: Photoactivatable oxygen-evolving compositions and methods for teeth whitening.
Inventor: REMIGIO PIERGALLINI
IPC: A61K8/22
Filed: 2011-04-29
Abstract: Disclosed herein are compositions that can rapidly evolve oxygen and/or activated oxygen generally including an oxidizing agent (e.g., a peroxide) and an activating agent that has an emission wavelength between about 400 nm and about 570 nm (e.g., Eosin B, Eosin Y, or Erythrosine B). Methods of employing these compositions to whiten teeth, and methods of making these compositions and kits that include some or part of the composition ingredients, are also described.
Patent MX-363026-B (MX)
Title: Process for depositing sulfur films and particles with antimicrobial activity over organic and inorganic substrates by cold plasma.
Inventor: CARLOS ALBERTO AVILA ORTA
IPC: A01N31/00
Filed: 2012-10-31
Abstract: The present invention refers to the deposit of sulfur films and particles over organic and inorganic substrates through the use of radiofrequency cold plasma for promoting the antimicrobial properties of the treated materials. The treatment conditions and the gas optionally containing sulfur are intended to control the chemical composition, the morphology, and the size of the particles which dimensions range from the nanometers to micrometers. The deposited particles of sulfur have a high microbial activity which may be compared to other systems of inorganic nanoparticles, but with the particularity of being harmless to human cells.
Patent MX-347438-B (MX)
Title: Micronized starch and methods for manufacturing same.
Inventor: Christopher c lane
IPC: B29B9/16
Filed: 2013-04-02
Abstract: The present application is related to a micronized starch with an average particle size of less than 5 ?m and a degree of polymerization greater than 100, wherein the micronized starch exhibits at least 20% of the crystallinity of the base granular starch.
Patent MX-338392-B (MX)
Title: Crystalline 6,7-unsaturated-7-carbamoyl morphinane derivative, and method for producing same.
Inventor: TAMURA YOSHINORI
IPC: A61P1/10
Filed: 2011-11-11
Abstract: The present invention provides a compound represented by Formula (IA): an acid addition salt thereof, and/or stable crystals of solvates thereof. The crystals are extremely useful as an active ingredient for producing pharmaceutical products. The present invention further provides a novel method for producing a 6,7-unsaturated-7-carbamoyl morphinane derivative.
Patent MX-345714-B (MX)
Title: Hydrocellular absorbent dressing, and uses thereof for the treatment of chronic and acute wounds.
Inventor: Stéphane Auguste
IPC: A61F13/02
Filed: 2012-04-13
Abstract: The invention relates to an absorbent dressing comprising a breathable impermeable substrate (4) and an absorbent foam (2), which is particularly suitable for use in the care of chronic or acute wounds. The invention relates to a dressing comprising an absorbent foam (2) and a protective substrate (4) that is impermeable to fluids, but permeable to water vapour, said substrate being formed by assembling a film (4a) and an openwork reinforcement that is coated with an adhesive silicone gel (4b) without blocking the holes in the reinforcement. In addition, the dressing comprises a non-absorbent web (5) which is disposed between the absorbent foam (2) and the substrate (4), which adheres to the adhesive silicone gel coating on the reinforcement and which is secured to the absorbent foam (2).
Patent MX-337387-B (MX)
Title: Fault protection system and method for fluorescent lamp ballasts.
Inventor: YAO GANG
IPC: H05B41/298
Filed: 2013-12-18
Abstract: Provided is a lighting ballast system and method for fluorescent lamps. The system and method utilize a lamp current control loop to control the light level of a fluorescent lamp. The ballast includes an open loop detector that recognizes an open current control loop as an indication of a fault or hazard condition, and causes the ballast to output a safe lamp voltage or no voltage. The fault or hazard condition may be, for example, a very high voltage at the lamp or very low current across the lamp. The ballast also includes a disable circuit that prevents the open loop detector from triggering at times when the loop is expected to be open such as during ignition and maintenance restarting of the lamp.
Patent MX-355459-B (MX)
Title: Metered and active sprayer devices with aerosol functionality ("flairosol ii").
Inventor: MAAS WILHELMUS JOHANNES JOSEPH
IPC: B05C17/01
Filed: 2012-09-20
Abstract: In exemplary embodiments of the present invention, "Flairosol" dispensing devices can be provided. Such devices utilize a combination of Flair® technology, pre- compression valves and aerosol like pressurization of the dispensed liquid. Such a dispensing device has, for example, a main body comprising a pressure chamber, the latter being provided with a pressure piston and a pressure spring. The device further has a piston and a piston chamber which draws liquid from a container, for example, the inner container of a Flair® bottle, and fills the pressure chamber with that liquid as a user operates a trigger in various compression and release strokes. The piston chamber has both an inlet valve and an outlet valve, which serve to prevent backflow. Liquid exiting the piston chamber under pressure (supplied by a user's pumping the trigger) enters a central vertical channel which is in fluid communication with both the pressure chamber (above the pressure piston) and a dome valve provided near the outlet channel at the top of the dispensing head. The dome valve has a preset pressure, such that once exceeded by the liquid, opens and allows for a spray. If the liquid pressure drops below such preset pressure the dome valve closes off the outlet channel, which serves to regulate the strength of the flow and preclude leakage. Alternatively, in an activated embodiment, for example, once the liquid is sufficiently pressurized, it can be dispensed by a user allowing the dome valve to open by pressing on an activation button that removes a dome lock.
Patent MX-342122-B (MX)
Title: An aerosol generating device having an internal heater.
Inventor: JEAN-MARC FLICK
IPC: A24F40/42
Filed: 2012-12-05
Abstract: There is provided an aerosol generating device for heating an aerosol-forming substrate. The device comprises a storage portion (101) for storing the aerosol-forming substrate and a vaporizer (105; 105') for heating the aerosol-forming substrate to form an aerosol. The storage portion (101) has an outer housing and an internal passageway (103), the storage portion forming a reservoir for the aerosol-forming substrate between the outer housing and the internal passageway, and the vaporizer (105; 105') extends at least partially inside the internal passageway (103) in the storage portion(101). The device further comprises a porous interface (107) at least partially lining the internal passageway (103) for conveying the aerosol-forming substrate from the storage portion (101) towards the vaporizer (105; 105').
Patent MX-351297-B (MX)
Title: Coagulation/flocculation apparatus for the treatment of a hydraulic flow, and implementation process.
Inventor: PATRICK VION
IPC: C02F1/24
Filed: 2013-01-03
Abstract: Coagulation/flocculation apparatus for the treatment of a hydraulic flow of any type of liquid, upstream of a physical separation element, in particular upstream of a flotation unit, or of a filtration unit, in particular a membrane filtration unit, which apparatus comprises at least one coagulator with injection of coagulant, followed by a flocculator, which are successively passed through by the hydraulic flow, in which apparatus: the coagulator comprises a reactor (1) for injection of coagulant under high energy, followed by a low-energy coagulation reactor (2); an intermediate high-energy element (3) is placed between the coagulation reactor (2) and the flocculator (4); and the flocculator is a static flocculator of piston type (4) having the same width as the physical separation element (5) located downstream.
Patent MX-370143-B (MX)
Title: System and method for underwater observation.
Inventor: HAROLD JOACHIM FREIHERR VON DER GOLTZ
IPC: B63B35/00
Filed: 2013-01-06
Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a water vehicle including a deck that accommodates a group of passengers above a waterline and an observation gondola accommodating the group of passengers below the waterline. The access between the observation gondola and the deck is provided by way of an aperture in a top of the observation gondola. The observation gondola includes a transparent floor and walls allowing the group of passengers to enjoy an underwater experience without exposure to the water and while maintaining an unobstructed panoramic view of the underwater environment. The underwater observation gondola can include a substantially open top, which may include a sun screen or weather protective cover. The open top exposes the observation gondola to fresh air, while alleviating any claustrophobic sensations as might otherwise be experienced by passengers during underwater observation. Other embodiments are disclosed.
Patent MX-350313-B (MX)
Title: Low density parity check encoder having length of 16200 and code rate of 2/15, and low density parity check encoding method using the same.
Inventor: PARK SUNG IK
IPC: H03M13/53
Filed: 2014-10-07
Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 16200 and a code rate of 2/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).
Patent MX-337811-B (MX)
Title: Signaling for downlink coordinated multipoint in a wireless communication system.
Inventor: ETEMAD KAMRAN
IPC: H04B7/04
Filed: 2013-05-10
Abstract: Embodiments herein describe apparatuses, systems, and methods for signaling to support downlink coordinated multipoint (CoMP) communications with a user equipment (UE) in a wireless communication network. In embodiments, the UE may be configured with a plurality of channel state information (CSI) processes (e.g., via radio resource control (RRC) signaling) to use for providing CSI feedback to an evolved Node B (eNB) to support downlink CoMP communications. The UE may be configured with a plurality of sets of CSI processes. The UE may further receive a downlink control information (DCI) message from the eNB that indicates one of the configured sets of CSI processes on which the UE is to provide CSI feedback to the UE. The UE may generate the CSI feedback for the indicated set of CSI processes, and transmit the CSI feedback to the eNB in a CSI report.
Patent MX-348192-B (MX)
Title: High voltage disconnection telescopic switch insulated by air with a moving contact with pressure supply.
Inventor: MIKHAIL SOTNIKOV
IPC: H01H1/02
Filed: 2014-11-26
Abstract: This invention makes reference to interrupter high voltage air-insulated telescopic disconnection switch with moving contact for supplying pressure, consisting of: a first male conductor comprising a first guide-positioner means internally coupled with such first male conductor via an intermediate section, a plurality of double-sided contact plates peripherally coupled with the intermediate section border; a second female conductor coaxially separated from the first male conductor comprising a second guide-positioner means internally coupled with such second female conductor by an intermediate section; a plurality of double-sided contact plates peripherally coupled with the intermediate section border; a moving conductor consisting of guide means internally coupled with such moving conductor by an intermediate support, being such conductor mobile and coaxially coupled with the interior of the first male conductor, where it moves to an open position, and is separated from the first mal e conductor and to a close position where such moving conductor causes a contact between the first male conductor and the second female conductor, by interacting among themselves to the first guide-positioner means of the first male conductor, the second guide-positioner means of the second female conductor and the guide means of the moving conductor; a plurality of contact plates peripherally coupled with the intermediate support border of the moving conductor, each of such contact plates having contact means for supplying pressure.
Patent MX-356842-B (MX)
Title: Irradiation device of a paste-type composition.
Inventor: JACOPO GUALANDI
IPC: A61C13/15
Filed: 2013-06-18
Abstract: It is described an irradiation device (10; 100) of a paste-type composition (C) comprising a container body (12; 120) equipped with a longitudinal through opening (14; 140), for the transit of the paste-type composition (C) to be irradiated, and with a dispensing head (18; 180) extending from the longitudinal through opening (14; 140); at least one irradiation element (24; 240) arranged in the container body (12; 120) and suitable for irradiating the paste-type composition (C) in transit in the longitudinal through opening (14; 140); and an energy source (26; 260) also arranged in the container body (12; 120) and in electrical connection with the at least one irradiation element (24; 240). It is also described a cartridge (50) for application on a treatment site of a paste-type composition (C) to be irradiated, the cartridge comprising a tube (30; 300) of paste-type composition (C) able to be removably associated with such a irradiation device (10; 100).
Patent MX-348849-B (MX)
Title: Photoluminescent blind spot warning indicator.
Inventor: SALTER STUART C
IPC: B60Q3/00
Filed: 2015-07-01
Abstract: A vehicle indicator apparatus is disclosed. The apparatus comprises a photoluminescent portion disposed on a forward vehicle pillar and a light source located proximate the forward vehicle pillar. The light source is configured to emit light at a first wavelength directed toward the photoluminescent portion. The photoluminescent portion is configured to convert the first wavelength to at least a second wavelength longer than the first wavelength to illuminate a surface of the forward vehicle pillar.
Patent MX-367161-B (MX)
Title: Removal of inorganic deposition from high temperature formations with non-corrosive acidic ph fluids.
Inventor: WIRDANSYAH LUBIS
IPC: C09K8/528
Filed: 2014-03-24
Abstract: A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising an amino multicarboxylic acid chelating agent, a pH adjusting compound, and an aqueous base fluid, and contacting the wellbore servicing fluid with scale deposits on a surface in fluid communication with the wellbore and/or subterranean formation.
Patent MX-364127-B (MX)
Title: Fastener cartridge assemblies.
Inventor: SHELTON FREDERICK E IV
IPC: A61B17/072
Filed: 2014-03-05
Abstract: A fastener cartridge assembly. The fastener cartridge assembly can comprise a fastener (20530), a cartridge body, and a tissue thickness compensator. The fastener can comprise a base, a first leg extending from the base, and a second leg extending from the base. The cartridge body can comprise a fastener cavity (20512) for receiving the fastener and a trajectory control (20514) for controlling the trajectory of the first and second legs of the fastener. The fastener can be removable from the fastener cavity along a fastener axis. The trajectory control can extend inwardly toward the fastener axis and can bias the first leg and the second leg toward alignment with the fastener axis when the fastener is positioned in the fastener cavity.
Patent MX-364985-B (MX)
Title: Imidazolyl progesterone antagonists.
Inventor: ELGER WALTER
IPC: A61K31/58
Filed: 2014-06-05
Abstract: Described herein are imidazolyl compounds that exhibit progesterone antagonism without any sign of partial agonistic activity. Such compounds have application in fertility control and in the treatment of hormone dependent breast cancer. The present invention also relates to processes of preparation and the use in therapy of such novel compounds.
Patent MX-361244-B (MX)
Title: Computer program for wellbore resistivity logging calibration.
Inventor: BURKAY DONDERICI
IPC: G01V3/18
Filed: 2013-07-26
Abstract: In-situ calibration of a resistivity logging tool is accomplished using a variety of methods in which deep measurement signals are calibrated using acquired and simulated measurement signals.
Patent GR-1006262-B (GR)
Title: Slabs of storeys of prefabricated buildings made of concrete.
Inventor: TSIBOURLAS GERASIMOS
IPC: B28B23/02
Filed: 2007-06-08
Abstract: Slabs of storeys of prefabricated buildings made of concrete according to an integrated construction system that provides the potential of their prefabrication in an industrial area and then the assembling in their final position, ensuring permanentand safe connection among the slabs and among the slabs and the walls.The slabs (19) are produced from moulds that have trough holes (15) with temporary caps (23) in the respective positions, by the removal of which and the positioning of pins (27)holes are formed, through which the connection with the walls (21) is made by bolts (7) or connectors (14).The slabs (19) are produced from a mould that in defined and exact points has hand-held (29) or mechanical (30) pistons that when they come out they form through holes (15).The slabs of storeys (19) also have special connectors (14) for the connection to one another through electric welding.Advantages of the present invention are the short time of construction, the impeccable aestheticsof the connection points and therefore of the entire building and the safe mode of permanent connection of the elements of the building in predefined points with accuracy, as they arise from the methodology of design followed.
Patent GR-1006921-B (GR)
Title: New olve-harvesting landscaping tarp
Inventor: ZAGORAIOU VIOLETA
IPC: A01D46/26
Filed: 2009-07-27
Abstract: Olive-harvesting landscaping tarp composed of a lightweight piece of fabric 1 of different dimensions, a central circular opening 2 of different diameter which opening may be either simple or equipped with rings 5 and a rope 6; a fissure 3 starting from said opening and ending at the end of one side of the fabric piece; a webbing 4 sewn at one side of he fissure to cover this last lengthwise.Advantage: easy spreading out of the fabric piece embracing the base of the olive tree trunk and covering, uniformly, the whole ground surface required under the olive tree with no loss of harvested fruit.
Patent CN-1760421-B (CN)
Title: 锁眼缝纫机
Inventor: TAKAHIRO OGATA
IPC: D05B3/06
Filed: 2005-10-12
Granted: 2011-10-19
Abstract: 一种锁眼缝纫机，锁眼缝纫机(1)，包括储存多个锁眼形状图案数据的形状数据存储机构(32)、和设定所希望的锁缝形状图案的形状图案设定机构(B1～B8)，并基于与锁眼形状图案相对应的锁眼形状图案数据，形成锁眼线迹；并具备：设定形成锁眼线迹的缝制区域的缝制区域设定机构(B15)；对应于被设定的缝制区域，通过扩大或缩小对锁眼形状图案数据进行校正的形状数据校正机构(30)；和基于通过该形状数据校正机构(30)校正的锁眼形状图案数据而形成锁眼线迹的控制机构(30)。这种锁眼缝纫机，仅通过变更形状图案数据的一部分便可以变更形状图案数据的全部数据项目，从而可减轻操作者的负担。
Patent CN-1893755-B (CN)
Inventor: WEI CHEN
IPC: H05B41/14
Filed: 2005-11-08
Granted: 2010-09-29
Abstract: 所公开的方法和装置用于平衡经过多个平行电路分支例如平行荧光灯的电流。具有多柱磁芯的单个变压器以能够简化电流平衡的特殊方式缠绕。具有所公开的绕组的传统3-柱EE型磁芯用于平衡电路中的电流，这些电路具有三个或更多个平行分支例如平行连接的冷阴极荧光灯(CCFL)。
Patent CN-1954633-B (CN)
Title: 使用配置转交地址的多媒体通信
Inventor: MAHENDRAN ARUNGUNDRAM C
IPC: H04W80/04
Filed: 2005-04-13
Granted: 2012-05-30
Abstract: 在无线通信系统中，移动节点首先通过发信号以请求与相应节点的通信会话，发信号用于通过经由中间节点的第一数据路径初始化通信会话。此外，通信的内容经过第二数据路径建立，其中，移动节点和相应的节点直接通信，而不经过中间节点。
Patent CN-1993452-B (CN)
Title: 润滑油添加剂和燃料油添加剂、润滑油组合物以及燃料油组合物
Inventor: NOBUAKI SHIMIZU
IPC: C10M135/26
Filed: 2005-08-04
Granted: 2010-05-05
Abstract: 本发明通过制备以通式(I)表示的二硫化物类化合物作为主要成分的润滑油添加剂和燃料油添加剂、以及含有该添加剂的润滑油组合物以及燃料油组合物，提供用于润滑油和燃料油的硫系极压添加剂、含有该添加剂的润滑油组合物以及燃料油组合物，所述添加剂具有优异的耐负荷性能和耐磨性，并且对非铁金属的腐蚀性低。式(I)中，R 1 、R 2 、R 6 和R 7 各自独立地表示可以含有氧原子、硫原子或氮原子的碳原子数为1～30个烃基，R 3 ～R 5 以及R 8 ～R 10 各自独立地表示氢或碳原子数为1～5的烃基。 R 1 OOC-CR 3 R 4 -CR 5 (COOR 2 )-S-S-CR 10 (COOR 7 )-CR 8 R 9 -COOR 6  (I)
Patent CN-101000340-B (CN)
Inventor: LIANCHENG LIN
IPC: G01N33/50
Filed: 2006-01-12
Granted: 2011-01-19
Abstract: 本发明公开了一种能同时检测人类和禽类禽流感病毒感染的生物芯片方法，其采用蛋白芯片点阵对禽流感病毒进行检测，包括如下步骤：A：准备好已活化处理的芯片片基；B：准备待点样的禽流感各亚型片断；C：准备质控蛋白；D：进行位点排布图案设计，各位点分别用于代表质控蛋白和禽流感各亚型片断；E：点样，即将质控蛋白和禽流感各亚型片断按图案点样于各位点中，制作成检测芯片，用于同时检测不同亚型所产生的抗体。本发明使禽流感的诊断和流行病学调查出现革新，使试验室人员从冗长而繁琐的实验步骤中解放出来，可实现一次实验，多种结果，且能快速地诊断、筛查和区分禽流感为高致病性、低致病性还是非致病性禽流感。
Patent CN-1931375-B (CN)
Title: 可塑性竹炭粉的制备方法
Inventor: YOUDENG YUAN
IPC: B44C3/04
Filed: 2006-07-08
Granted: 2011-10-12
Abstract: 本发明公开了一种可塑性竹炭粉的制备方法，属制作艺术品新材料的制备与应用。其配方为：竹炭粉、活性炭、胶粘剂、光催化剂组成；工艺过程为：取竹炭粉和活性炭均匀混合后再加入胶粘剂和光催化剂并将它们混合均匀；将混合后的材料按模具型腔的等容量放入模具型腔中进行成形模压，脱模后的半成品经室温稳定后放入恒温设备中升温后恒温保持；经恒温后的半成品再放至室内降至常温后即可以实施贴花、喷砂、雕刻、彩绘、接合、着妆、修剪等加工得到成品。本发明的产品可吸附空气中有害物质，还可利用炭产品可屏蔽电磁波、释放远红外线、调节室内干湿度、产生负离子等功效，是一种环保形的新材料制作的新产品。
Patent CN-1953276-B (CN)
Title: 零插入力印刷电路组件连接器系统和方法
Inventor: ANDBERG JOHN W
IPC: H01R13/193
Filed: 2006-10-19
Granted: 2010-10-06
Abstract: 本发明公开了一种真空和弹簧致动的零插入力连接器系统。该连接器系统可以包括能通过真空和弹簧机构与印刷电路板配合和解除配合的一个或多个电接触元件。
Patent CN-101020368-B (CN)
Inventor: JIEFENG HAO
IPC: B30B15/10
Filed: 2006-12-09
Granted: 2010-12-08
Abstract: 一种用于摩擦螺旋压力机螺杆的瞬间快速制动机构，由手动操纵杆、触发装置、抓捕器、防误操作闭锁装置、箱体等构成。抓捕器的龟形夹盘可在事故即将发生的瞬间牢牢抓住压力机螺杆使其无法向下移动被迫于瞬间停止、因此可有效避免人身事故的发生，这种快速制动机构结构简单、动作灵活、使用寿命长，能为操作者提供可靠的安全保护、特别适用在新设计的摩擦螺旋压力机上、若将原有的摩擦螺旋压力机进行一些改造也可使用。