baber/WOPTO huggingface dataset:
Patent WO-2021003606-A1 (WO)
Title: Throttle for electronic fuel injection
Inventor: LIANG SHIJIN
IPC: F02M7/22
Filed: 2019-07-05
Abstract: A throttle for electronic fuel injection comprises: a throttle body (1); a first throttle hole (2) and a second throttle hole (3) provided in the throttle body, a first throttle shaft (4) and a second throttle shaft (5) being respectively mounted in the first throttle hole and the second throttle hole, a first throttle piece (6) and a second throttle piece (7) being respectively mounted on the first throttle shaft and the second throttle shaft, a first gear (8) and a second gear (9) being respectively mounted on lower ends of the first throttle shaft and the second throttle shaft, and a first throttle rocker arm (15A) and a first return torsion spring (16A), and a second throttle rocker arm (15B) and a second return torsion spring (16B) being respectively mounted on upper ends of the first throttle shaft and the second throttle shaft; and a main gear (10), the first gear and the second gear separately engaging with the main gear, a protruding rod (11) being provided on the main gear, and the protruding rod being connected to a motor (14) by means of a motor rocker arm (13). Minimum flow rates of the two throttle holes can be adjusted separately, thereby ensuring consistency between low flow rates of two cavities.
Patent WO-2020024949-A1 (WO)
Inventor: XIE JING
IPC: H04N21/8547
Filed: 2019-07-30
Abstract: 本申请实施例公开了确定时间戳的方法和装置。该方法包括：采集视频数据，并利用预置的音频处理组件播放目标音频数据；其中，视频数据包括多帧；音频处理组件支持音频播放，以及，支持缓冲区和回调函数的设置；所述回调函数用于在缓冲区中的目标音频数据被所述音频处理组件处理完毕后返回信息；对于该视频数据中的每帧，基于采集到该帧时已返回的信息，确定采集到该帧时已播放的目标音频数据的数据量，基于该数据量对应的播放时长，确定该帧的时间戳。
Patent WO-2020042902-A1 (WO)
Title: 语音识别的方法、系统和存储介质
Inventor: LIU FENG
IPC: G10L15/02
Filed: 2019-08-13
Abstract: 一种语音识别的方法，包括：接收CPU发送的特征向量和解码图；特征向量为CPU从语音信号中提取得到；解码图为预先训练得到（21）；根据预先训练得到的声学模型识别特征向量，得到概率矩阵（22）；根据概率矩阵和解码图采用并行机制进行解码，得到文本序列信息（23）；将文本序列信息发送给CPU（24）。还涉及一种语音识别的系统和存储介质。
Patent WO-2021031033-A1 (WO)
Inventor: HUANG WENWEN
IPC: H04W72/04
Filed: 2019-08-16
Abstract: L'invention concerne un procédé et un dispositif pour déterminer une valeur de décalage d'une unité de temps minimale disponible. Lorsqu'une partie de largeur de bande (BWP) est commutée, une seconde valeur de décalage d'unité de temps minimale disponible associée à la BWP activée après le transfert est déterminée d'après la première valeur de décalage d'unité de temps minimale disponible associée à la BWP activée avant le transfert. Le dispositif terminal est ainsi amené à maintenir l'état de traitement du canal de commande de liaison descendante physique (PDCCH) initial le plus longtemps possible, ce qui réduit considérablement la consommation d'énergie du dispositif terminal.
Patent WO-2020042940-A1 (WO)
Inventor: TAO CHUNHUI
IPC: G01V9/00
Filed: 2019-08-18
Abstract: A seabed sulfide ore prospecting method based on topographic analysis, comprising the following steps: step 1: selecting a mineralization prospect zone; step 2: searching for topographic data of the mineralization prospect zone and drawing a seabed topographic map; step 3: analyzing the seabed topographic map, and planning and designing a sampling station; step 4: obtaining a sediment sample at the sampling station position in step 3; step 5: performing heavy sand mineral identification and main trace element analysis on the sediment sample, and drawing a seabed heavy mineral dispersion halo map and a geochemical halo map; step 6: performing overlay analysis on the seabed heavy mineral dispersion halo map and the geochemical halo map, and defining a favorable mineralization zone in combination with the topographic analysis. The method optimizes and innovates the sampling station setting of the seabed sediment, and the sampling station setting is more reasonable and effective; in combination with the heavy mineral and geochemical methods, a better detection effect is realized for inactive hydrothermal zone concealed sulfide and secondary enrichment mineralization; costs are lower compared with other methods.
Patent WO-2021031111-A1 (WO)
Inventor: WANG JING
IPC: G02B5/18
Filed: 2019-08-20
Abstract: A method for manufacturing a surface relief grating structure (2). The method comprises grating motherboard (1,11,12,13,14,15,16) manufacturing and grating structure (2) transfer processes. During the grating motherboard (1,11,12,13,14,15,16) manufacturing process, a motherboard (1,11,12,13,14,15,16) coating process is added, and a metal film layer (102), the etching rate of which is different from that of a base substrate (101), is selected. During a motherboard (1,11,12,13,14,15,16) etching process, the power of an ion beam can be controlled to achieve the effect of accurately controlling the etching depth of the base substrate (101). In addition, an included angle between an emission line of the ion beam and one end face of the base substrate (101) that completes development is not a right angle, such that an inclined groove face is formed on an etched groove face, so as to obtain the grating motherboard (1,11,12,13,14,15,16) with a trapezoidal crevice. The method has a high ion beam etching efficiency, is suitable for processing a large area and use in mass production, and is widely applied. Relative to a laser direct writing method, pre-confirmed ion beam etching parameters are set, one-step forming is achieved, the efficiency and the degree of controllability are high, a target grating structure (2) can further meet the dimensional requirement, and the operation is simpler.
Patent WO-2020038491-A1 (WO)
Title: Isolated t-cell receptor, modified cell, encoding nucleic acid and use thereof
Inventor: HOU YAFEI
IPC: A61P35/00
Filed: 2019-08-26
Abstract: Provided are an isolated T-cell receptor, a modified cell, an encoding nucleic acid and the use thereof. The isolated T-cell receptor (TCR) comprises at least one of an α chain and a β chain, both the α chain and the β chain comprising a variable region and a constant region, and is characterized in that the T cell receptor can specifically identify the antigen Her2/neu expressed by tumor cells, and the amino acid sequence of the variable region of the α chain has at least 98% identity with the amino acid sequence as shown in SEQ ID NO: 1, and the amino acid sequence of the variable region of the β chain has at least 98% identity with the amino acid sequence as shown in SEQ ID NO: 2. The TCR can specifically identify a tumor antigen and, at the same time, can prevent any possible off-target toxic and side effects. Immune cells modified with the TCR have significant antitumor effects.
Patent WO-2020098347-A1 (WO)
Inventor: LIU ZIFAN
IPC: G06F16/2453
Filed: 2019-09-04
Abstract: Disclosed are an information generation method, apparatus and system. One particular embodiment of the method comprises: periodically acquiring slow query data from a slow query data queue; performing data processing on the acquired slow query data; and clustering processed data according to a pre-set category, and based on a clustering result, generating slow query information corresponding to the pre-set category. According to the embodiment, a server with an excessively high slow query data volume and generated information such as time can be quickly positioned, thereby facilitating the effective maintenance of a device with an excessively high slow query data volume.
Patent WO-2020048501-A1 (WO)
Inventor: CHEN HE
IPC: D06F33/02
Filed: 2019-09-04
Abstract: La présente invention concerne un procédé de commande de lavage, comprenant les étapes consistant à : commander le flux entrant de la machine à laver jusqu'à ce que le niveau d'eau de rinçage soit atteint dans un délai prédéterminé avant la fin de la procédure de lavage ; et commander l'augmentation de la vitesse de rotation de lavage jusqu'à une vitesse prédéterminée.
Patent WO-2020057533-A1 (WO)
Title: 计算带宽利用率的方法及设备
Inventor: CHENG WEIQIANG
IPC: H04L12/26
Filed: 2019-09-18
Abstract: 本公开的一些实施例提供了一种计算带宽利用率的方法及设备，该方法包括：确定物理链路上多个码块中的空闲码块的数量；根据所述物理链路的码块的数量和所述空闲码块的数量，计算所述物理链路的带宽利用率。
Patent WO-2020134235-A1 (WO)
Inventor: LIANG ZHIYING
IPC: B64C1/00
Filed: 2019-09-24
Abstract: 一种无人飞行器（500）及其机翼组件（100），其中所述机翼组件（100）用于安装于无人飞行器（500）的机身（200），所述机翼组件（100）包括：机翼（10）；以及旋转锁芯（20），所述旋转锁芯（20）具有旋转轴线（O），所述旋转锁芯（20）的一端安装于所述机翼（10），所述旋转锁芯（20）的另一端用于安装于所述机身（200）；其中，所述旋转锁芯（20）可绕所述旋转轴线（O）相对于所述机翼（10）旋转，以使得所述旋转锁芯（20）的另一端与所述机身（200）相拆卸。通过在所述机翼（10）上安装所述旋转锁芯（20），通过旋转所述旋转锁芯（20）与所述机身（200）相拆卸，以方便将机翼（10）从机身（200）上拆卸下来。
Patent WO-2021056410-A1 (WO)
Inventor: XU HAIFENG
IPC: B01D46/10
Filed: 2019-09-27
Abstract: Disclosed is a dust-removal device for a spinning-and-weaving apparatus. A spinning-and-weaving box body (4) is arranged on a supporting table (1); a spinning-and-weaving operation table (8) is arranged on the supporting table (1) and located in the spinning-and-weaving box body (4); a box door (5) is rotatably arranged at the front end of the spinning-and-weaving box body (4), and a door handle (6) is arranged on the box door (5); a driving electric motor (10) is connected to the spinning-and-weaving box body (4); an output end of the driving electric motor (10) is connected to a lead screw (11); one end of the lead screw (11) that is away from the driving electric motor (10) is connected to an inner ring of a bearing (9); a supporting rod (12) is arranged in the spinning-and-weaving box body (4) and is parallel to the lead screw (11); a supporting plate (15) is arranged at the upper end of a sliding seat (13) and is connected to a dust suction pipe (16); two ends of the dust suction pipe (16) extend out of the sliding seat (13) and are connected to a plurality of groups of dust suction heads (17); a pipe connecting hole (161) is provided in the dust suction pipe (16); a spinning-and-weaving mechanism (14) is connected to the lower end of the sliding seat (13); one end of a connecting hose (18) is connected to the pipe connecting hole (161), and the other end thereof is connected to a dust storage box (20); the dust storage box (20) and a dust collector (21) are arranged on a connecting plate (3); and the dust storage box (20) is connected to the dust collector (21).
Patent WO-2020192079-A1 (WO)
Title: Panneau d'affichage souple et son procédé de fabrication, appareil d'affichage souple
Inventor: HE WEI
IPC: H01L51/00
Filed: 2019-10-08
Abstract: L'invention concerne un procédé de fabrication d'un panneau d'affichage souple. Le procédé de fabrication du panneau d'affichage souple peut comprendre la formation d'une couche photosensible (20) comprenant au moins un groupe azo sur un substrat de support (10) ; la formation d'un substrat souple (30) sur la couche photosensible (20) ; l'irradiation de la couche photosensible (20) avec une lumière ultraviolette ; et le décollement du substrat souple (30) du substrat de support (10).
Patent WO-2020088242-A1 (WO)
Inventor: LIU YANJUN
IPC: G01C9/12
Filed: 2019-10-15
Abstract: A detection device for perpendicularity of a pile body, used for measuring the perpendicularity of a pile body (8), and comprising a main body (1), a telescopic rod (3), a dial (4), an indicator (5), and slots (6); wherein the main body (1) is a straight rod; the telescopic rod (3) is provided on the top end of the main body (1); the indicator (5) is provided on the top end of the telescopic rod (3); the indicator (5) is parallel to and not aligned with the telescopic rod (3); the dial (4) is hung on the indicator (5) by means of a pull rope; angle scale marks are provided on the dial (4); the scale marks on the dial (4) are circularly arrayed; a joint of the pull rope and the indicator (5) is a center of circle of the scale marks; the slots (6) are respectively formed on side surfaces at two ends of the main body (1); grooves parallel to the main body (1) are formed in the slots (6). The detection device can be used for detecting the perpendicularity of the underwater pile body (8); the limitations of a conventional perpendicularity detection method are avoided; the influences of environmental factors, such as onsite water flow, water quality and wind power, on a detection result can be avoided; and the detection device has the advantages of simple operation, high working efficiency and detection accuracy when the detection device is used for detecting the perpendicularity of the pile body (8) on the ground.
Patent WO-2020088454-A1 (WO)
Inventor: LIANG HONGWEN
IPC: C08F297/04
Filed: 2019-10-29
Abstract: Disclosed are a hydrogenated styrene/conjugated diolefin copolymer, a foaming material thereof, and application thereof. The copolymer contains a styrene structure unit and a hydrogenated conjugated diolefin structure unit; by taking the total content of the copolymer as a reference, the content of the styrene structure unit is 15-50wt%, preferably 18-45wt%, the content of 1,2-polymerization structure unit in the hydrogenated conjugated diolefin structure unit is 8-32%, preferably 10-30%, more preferably 12-25%, the degree of randomness of the styrene structure unit in the hydrogenated conjugated diolefin structure unit is 30-80%, preferably 35-75%, and the degree of hydrogenation of conjugated diolefin in the copolymer is 85-100%, preferably 95-100%. The tensile strength at break of the hydrogenated styrene/conjugated diolefin copolymer is 30-60 MPa, the elongation at break is 300-600%, and the hardness (Shore A) is 70-98. Moreover, a foaming body having excellent performance including more than 60% rebound and less than 30% compression deformation can be manufactured by using a supercritical carbon dioxide foaming process.
Patent WO-2020093937-A1 (WO)
Inventor: DONG JINGUANG
IPC: H04R25/00
Filed: 2019-11-01
Abstract: 本申请实施例提供一种控制助听器的方法及终端，所述方法包括：终端与助听器建立无线通信链路；终端采集环境数据；终端根据环境数据生成参数配置指令，发送参数配置指令给助听器。根据环境数据判断助听器的使用场景，可以实现对助听器的个性化设置，更加贴合用户的听觉需求。
Patent WO-2021082021-A1 (WO)
Title: Clone game account establishing method and system thereof
Inventor: CHIEN CHIH-HAO
IPC: G06Q20/06
Filed: 2019-11-02
Abstract: Disclosed in the present invention are a clone game account establishing method and a system thereof. When any auction information is logged on a game account transaction platform, the game account transaction platform establishes a test game interface according to a game interface corresponding to the game account, generates a clone game account according to a game object, and provides the clone game account for any buyer user primary account to enter the test game interface to trial the clone game account.
Patent WO-2020134574-A1 (WO)
Title: 基于区块链的发票真伪验证方法、装置和电子设备
Inventor: XIAO HANSONG
IPC: G06F16/245
Filed: 2019-11-04
Abstract: 本说明书实施例提供一种基于区块链的发票真伪验证方法、装置和电子设备，所述区块链中存储有发票和发票的数字摘要之间的对应关系，所述方法包括：接收客户端提交的针对待识别发票的防伪验证请求；响应于所述防伪验证请求，计算所述待识别发票的数字摘要，并查询所述区块链中是否存储了与所述数字摘要对应的目标发票；如果所述区块链中存储了与所述数字摘要对应的目标发票，向所述客户端返回所述待识别发票为真的验证结果。
Patent WO-2021077470-A1 (WO)
Inventor: XIE HUAFEI
IPC: H01L29/786
Filed: 2019-11-07
Abstract: Disclosed are a thin film transistor, a display panel, and a method for manufacturing the thin film transistor. The thin film transistor comprises a substrate, a gate layer, a dielectric layer, an active layer, and a source-drain layer which are stacked from bottom to top; the upper surface of the gate layer is provided with a plurality of reinforcing parts; and the reinforcing parts are used for increasing the area of the upper surface of the gate layer, so as to increase the effective contacting area of the gate layer and the active layer, reduce the width and length of the thin film transistor, and reduce the parasitic capacitance of the thin film transistor.
Patent WO-2020228286-A1 (WO)
Inventor: WU KUI
IPC: H04M1/02
Filed: 2019-11-13
Abstract: A wearable apparatus, comprising a wearable assembly (1) and a display device (2) detachably mounted on the wearable assembly (1). The display device (2) comprises: a first body (211) provided with a connecting end; a second body (212) which is rotatably connected to the connecting end of the first body (211) and which may be bent inwards to cover with the first body (211) or may be bent outwards to mutually unfold; and a flexible display device (22) which covers the first body (211) and the second body (212) and which may be bent inwards or unfolded outwards correspondingly along with the mutual rotation between the first body (211) and the second body (212). The present wearable apparatus may provide a folding or unfolding effect between the first body (211) and the second body (212), thereby driving the flexible display device (22) to bend or unfold. In addition, the detachable and foldable combination may be used to maximize the improvement of the user experience.
Patent WO-2020103759-A1 (WO)
Title: Integrated circuit (ic) power-up testing method and device, and electronic equipment
Inventor: DAI YANGYANG
IPC: G06F11/36
Filed: 2019-11-14
Abstract: An integrated circuit (IC) power-up testing method, an IC power-up testing device, a storage medium and an electronic equipment are disclosed. The IC power-up testing method includes: obtaining power-up testing parameters for an IC; obtaining a plurality of power-up testing waveforms; generating a plurality of power-up test instances by conducting parameter assignments for the power-up testing waveforms based on the power-up testing parameters; and performing power-up tests on the IC using the plurality of power-up test instances. The method allows simulating various IC power-up scenarios through a plurality of power-up test instances.
Patent WO-2020134700-A1 (WO)
Title: 晶圆凸块及晶圆凸块的制造方法
Inventor: CHEN HAO
IPC: H01L23/488
Filed: 2019-11-18
Abstract: 本发明提供了一种晶圆凸块及晶圆凸块的制造方法，所述晶圆凸块包括位于底部的半导体基材、位于所述半导体基材上的线路层、位于所述线路层上方的第一金属层和第二金属层，所述第一金属层位于所述第二金属层和所述线路层之间，所述晶圆凸块还包括围绕所述第一金属层侧面设置的第一光刻胶、位于所述第一金属层和所述线路层之间的隔绝层，所述第一光刻胶的高度不低于第一金属层的高度。本发明的晶圆凸块可以防止第一金属层氧化。本发明的晶圆凸块的制造方法，工艺简单，制得的晶圆凸块抗氧化性高，且可以抵抗两种金属之间存在电位差而造成的贾凡尼效应。
Patent WO-2020108429-A1 (WO)
Title: Array substrate and display device
Inventor: MA YONGDA
IPC: H01L27/32
Filed: 2019-11-25
Abstract: Disclosed are an array substrate and a display device. The array substrate comprises: a substrate body (100) and multiple first signal lines (110) located on the substrate body (100), wherein each of the first signal lines (110) comprises a first line segment (211), a second line segment (221) and a third line segment (231) connecting the two. The multiple first signal lines (110) are arranged at intervals in a first direction (a); a first spacing area (210) is formed between the two adjacent first line segments (211) in a second direction (b) perpendicular to the first direction (a); a second spacing area (220) is formed between the two adjacent second line segments (221); and a third spacing area (230) is formed between the two adjacent third line segments (231). At least a part of a sub-pixel unit is provided in the first spacing area (210) and the third spacing area (230), and the second line segment (221) is connected to a terminal connection lead (120) at the position of an edge, adjacent to a display area, in a non-display area of the substrate body (100). The widths of at least the two adjacent second spacing areas (220) are the same in the first direction (a).
Patent WO-2020119471-A1 (WO)
Title: 一种变压器以及电源
Inventor: TAN WEI
IPC: H01F27/28
Filed: 2019-11-28
Abstract: 一种变压器以及电源，变压器包括：磁芯，磁芯包括：第一磁柱和第二磁柱；第一磁柱的一端与第二磁柱的一端耦合，第一磁柱的另一端与第二磁柱的另一端耦合形成环形；第一磁柱和第二磁柱上绕制有一组或多组原边线圈，原边线圈连接原边开关电路，当原边开关电路为原边线圈供电时，原边线圈在第一磁柱和第二磁柱上形成磁通，在第一磁柱和第二磁柱上形成的磁通方向相同；第一磁柱与第二磁柱上分别绕制有副边线圈，副边线圈用于感应第一磁柱或第二磁柱上的磁通产生电流，副边线圈的匝数为分数匝。该变压器通过分数匝形式能够降低绕组损耗，同时该变压器的结构为一种更加方便实现的磁芯的磁柱分布结构，降低了产品成本。
Patent WO-2020244181-A1 (WO)
Inventor: WANG YONGQING
IPC: C08K3/36
Filed: 2019-12-04
Abstract: 本发明公开了一种高分散高导热白炭黑的制备方法，该方法包括以下步骤：(1)配制硅酸钠溶液和酸溶液；(2)向硅酸钠溶液中加入表面活性剂、铝盐、镁盐和酸溶液，至体系的pH值为5，得到母液；(3)向母液中加入硅酸钠溶液，将体系的pH值由5梯度调节至11，然后向母液中加入酸溶液，将体系的pH值由11梯度调节至5；(4)母液经分离、干燥，得到白炭黑。与现有技术相比，采用本发明方法制备的白炭黑导热系数在15w/m·k以上，分散度等级＞9.7。
Patent WO-2020134929-A1 (WO)
Inventor: HAN MENGMENG
IPC: G02B6/26
Filed: 2019-12-04
Abstract: 本发明涉及光器件连接技术领域，尤其涉及一种连接装置及光器件外接光纤装置。连接装置包括壳体、转盘、第一连接件和驱动组件，壳体上开设有连接口；转盘设置在壳体内，可绕固定在壳体上的第一轴转动；多个第一连接件设置在转盘上且均位于以第一轴为圆心的第一圆周上，连接口正对第一圆周；驱动组件，用于驱动转盘转动，使任一第一连接件正对连接口。
Patent WO-2020143370-A1 (WO)
Inventor: WU YONGCHUN
IPC: A43B23/02
Filed: 2019-12-05
Abstract: A cotton slipper, comprising a sole and an upper. The bottom edge of the upper is sewn on the sole; one or two split seams running from front to back is provided on the upper; a cloth strip is sewn on the upper at one side of the split seam; the cloth strip is connected to the upper at the other side of the split seam by means of an overlap connection member; the rear part of the cloth strip is connected to the upper at a corresponding position by means of a fixing member. The present utility model has the beneficial technical effects of: having a reasonable design, being comfortable to wear, having a detachable upper, being convenient to clean and dry, and saving washing water.
Patent WO-2020181851-A1 (WO)
Title: 基于Zigbee无线网络的仓库监控系统
Inventor: WU SHANG
IPC: H04L29/08
Filed: 2019-12-09
Abstract: 本发明公开了一种基于Zigbee无线网络的仓库监控系统，包括传感器模组，传感器模组包括，设置在仓库的通道门处的超声波传感器，安装在存储货架上每个存储区域的对射光电传感器，所述对射光电传感器与存储区域一一对应，及分布在仓库内不同位置的多个温度传感器；传感器模组连接无线采集通讯板从机，将传感器检测数据通过Zigbee无线通讯网络传输至主机，无线采集通讯板主机连接上位机；所述上位机安装有控制软件，对检测数据进行分类判断是否达到每一类的设定阈值，通过声光报警装置进行报警，将现场数据上传至安全网络系统。可以对仓库储位、门禁、存储环境进行实时监控，将现场信息通过Zigbee无线网络发送至安全网络系统记录。
Patent WO-2020119779-A1 (WO)
Inventor: DONG ZHIGANG
IPC: H01L21/02
Filed: 2019-12-13
Abstract: 一种半导体晶片光电化学机械抛光加工装置及其加工方法，晶片（4）通过导电胶粘接固定在抛光头（3）上，晶片（4）在其下方通过导电滑环（2）内外圈的导线连接外电源（12）正极。抛光垫（5）粘贴在对电极盘底部，对电极盘（6）固定在抛光盘（7）底部且与抛光盘（7）对应位置加工有通孔（8），对电极盘（6）通过其上方的导电滑环（11）内外圈导线连接外电源（12）负极。紫外光源（10）发出的紫外光可以透过通孔（8）照射到晶片（4）表面，抛光液也可以喷射入通孔（8）进入晶片（4）与抛光垫（5）的接触区。该光电化学机械抛光加工装置可较好地实现光电化学机械抛光加工，加工装置具有操作简单，实现容易，工艺参数可灵活调节的优点，加工氮化镓晶片的实际加工中可取得去除速率快，加工后表面质量好的效果。
Patent WO-2021120134-A1 (WO)
Inventor: CHENG ZHANBING
IPC: C12P7/52
Filed: 2019-12-19
Abstract: Disclosed in the present invention is a fluoroacetate dehalogenase mutant, a sequence of the fluoroacetate dehalogenase mutant comprising a mutated sequence having an amino acid residue H at position 155 and/or an amino acid residue W at position 156, as shown in SEQ ID NO: 1; the fluoroacetate dehalogenase mutant has activity catalyzing bromination of a substrate, particularly a 2-bromobutyric acid substrate. Also provided in the present invention is an application of said fluoroacetate dehalogenase mutant in the preparation of (R)-2-bromobutyric acid and/or (R)-2-hydroxybutyric acid. When using the fluoroacetate dehalogenase mutant of the present invention to prepare (R)-2-bromobutyric acid, production costs are low and stereoselectivity is high, facilitating industrialized production.
Patent WO-2021114369-A1 (WO)
Inventor: FENG XIATING
IPC: G01N3/12
Filed: 2019-12-20
Abstract: A true triaxial test system for high-pressure hard rock broadband low-amplitude surface disturbances, comprising a low-frequency disturbance true-triaxial mechanism (I), a variable frequency slow-disturbance rod mechanism (II) and a quick single-side unloading sample cell (III), the low-frequency disturbance true-triaxial mechanism (I) and the variable-frequency slow-disturbance rod mechanism (II) being distributed along a straight line, the low-frequency disturbance true-triaxial mechanism (I) being used alone or used in cooperation with the variable-frequency slow-disturbance rod mechanism (II), and the quick single-side unloading sample cell (III) being used in cooperation with the low-frequency disturbance true-triaxial mechanism (I). Said system can simulate, from the perspective of an indoor test, a surface disturbance loading action process of a rock body under a high static stress loading, of which the frequency range of a disturbance wave is in the range of 0 to 20 Hz, such as blasting seismic waves, disturbance waves generated by large-scale rock blasting and fault slipping, implement the simulation of a low stress amplitude feature by means of low speed firing of bullets, and implement the simulation of a specific frequency feature by means of rod splicing; furthermore, the rod splicing manner shortens the length of a device, and saves the floor space of the device, reducing the difficulty in selecting a test site, and enabling the installation and maintenance of the device to be easier.