摘要：【中文】本发明涉及一种背光测试冶具，包括一种学习用游泳潜水器材，包括支架游泳池、呼吸器，支架游泳池上方设悬挂支架，悬挂支架上设有悬浮调节装置，呼吸器包括潜水鼻罩、呼吸管，潜水鼻罩和呼吸管可拆卸连接。本发明的学习用游泳潜水器材搬运方便，可用于室内、室外等能够平稳放置的多种使用环境，方便初学者呼吸且不易呛水，使初学者能够潜浮而更接近自然游泳状态，在保证初学者呼吸自然不呛水的同时，避免初学者产生恐惧，进而帮助初学者更快，更高效地学习游泳。 【EN】The invention relates to a backlight test fixture, which comprises a swimming and diving apparatus for learning, and comprises a support swimming pool and a respirator, wherein a suspension support is arranged above the support swimming pool, a suspension adjusting device is arranged on the suspension support, the respirator comprises a diving nose mask and a breathing pipe, and the diving nose mask is detachably connected with the breathing pipe. The swimming diving equipment for learning is convenient to carry, can be used in various use environments such as indoor and outdoor and the like which can be stably placed, is convenient for beginners to breathe and is not easy to choke water, enables the beginners to float and be closer to a natural swimming state, avoids the fear of the beginners while ensuring the beginners to breathe naturally and not choke water, and further helps the beginners to learn swimming more quickly and efficiently.

摘要：【中文】一种莲子去皮机，包括机身、驱动机构、传动机构、进料机构、执行机构和落料机构，执行机构通过传动机构连接驱动机构，落料机构固定在机身上且位于执行机构下方；莲子匀速间歇地进入执行机构，落入第一旋转轮和第二旋转轮之间，所述冲洗机构的冲击水流直击在莲子上，完成去皮操作后落入落料机构。完成去皮的莲子在水流和重力的作用下滑落至跳板处跳起，而剥离的皮在在与流水的粘附力下绕开跳板从两侧流过并从落皮槽处落下；莲子去皮机能实现自动进料落料一体化加工，具有加工效率高，去皮率高、损伤率低等特点。 【EN】A lotus seed peeling machine comprises a machine body, a driving mechanism, a transmission mechanism, a feeding mechanism, an actuating mechanism and a blanking mechanism, wherein the actuating mechanism is connected with the driving mechanism through the transmission mechanism; the lotus seeds intermittently enter the actuating mechanism at a constant speed and fall between the first rotating wheel and the second rotating wheel, and impact water flow of the flushing mechanism directly hits on the lotus seeds and falls into the blanking mechanism after peeling operation is completed. The peeled lotus seeds slide to the springboard to jump up under the action of water flow and gravity, and the peeled lotus seeds bypass the springboard under the adhesion force of flowing water and flow through the two sides of the springboard and fall from the peel falling groove; the lotus seed peeling machine can realize automatic feeding and blanking integrated processing and has the characteristics of high processing efficiency, high peeling rate, low damage rate and the like.

摘要：【中文】本发明公开了一种流体传输管道，包括非金属管体以及光纤传感器，所述非金属管体包括由内而外依次设置的防腐蚀内管以及保护外管，所述光纤传感器包括光纤以及法拉第旋转镜，所述光纤与法拉第旋转镜连接，所述光纤以及法拉第旋转镜均埋设于所述保护外管内；还公开了其制备方法以及一种流体传输管道泄漏检测系统，包括流体传输管道以及与光纤连接的解调仪和与解调仪连接的信号处理终端。本发明将传输管道设置为非金属管体不易腐蚀，同时将光纤埋入非金属管体内，将非金属管体铺设和光纤铺设融为一体，而且光纤沿非金属管体长度全程铺设，可以实现长距离的非金属管体泄漏检测，使得检测覆盖率更高，精度更高。 【EN】The invention discloses a fluid transmission pipeline, which comprises a non-metal pipe body and an optical fiber sensor, wherein the non-metal pipe body comprises an anti-corrosion inner pipe and a protective outer pipe which are sequentially arranged from inside to outside; the preparation method of the fluid transmission pipeline and the fluid transmission pipeline leakage detection system comprise the fluid transmission pipeline, a demodulator connected with the optical fiber and a signal processing terminal connected with the demodulator. According to the invention, the transmission pipeline is set to be a non-metal pipe body which is not easy to corrode, the optical fiber is embedded into the non-metal pipe body, the laying of the non-metal pipe body and the laying of the optical fiber are integrated, and the optical fiber is laid along the whole length of the non-metal pipe body, so that the leakage detection of the non-metal pipe body in a long distance can be realized, the detection coverage rate is higher, and the precision is higher.

摘要：【中文】本发明提供一种适用于大偏心率轨道密集星历精密计算的快速处理方法，针对大偏心率轨道计算，提出了一种通过时间变换构造插值基点的新方法，构造出的非均匀插值基点配合插值多项式内插得到密集星历，该技术方案可显著提高计算效率和精度。本发明基于大规模数值实验，给出了对应于不同轨道偏心率和多种插值多项式的时间变换参数的最佳普适数值为0.3。此外，本发明还在时间变换参数取最佳普适数值的条件下，通过比较多种插值多项式的计算效率，确定Hermite插值多项式是一种较好的方法。 【EN】The invention provides a rapid processing method suitable for precise calculation of dense ephemeris with a large eccentricity orbit, and provides a new method for constructing an interpolation base point through time transformation aiming at the large eccentricity orbit calculation. Based on large-scale numerical experiments, the optimal universal numerical value of the time transformation parameters corresponding to different orbit eccentricities and various interpolation polynomials is 0.3. In addition, the invention also determines Hermite interpolation polynomial by comparing the calculation efficiency of various interpolation polynomials under the condition that the time conversion parameter takes the optimal universal value, which is a better method.

摘要：【中文】本发明提出一种栅极扫描驱动电路和液晶显示装置，涉及液晶面板领域，所述电路包括4m级驱动电路单元，依序设置的4级驱动单元为一个重复单元；其中第4m‑2级驱动电路单元和第4m‑1级驱动电路单元均含有或非门电路可生成维持信号。第n(4m‑3≤n≤4m)级驱动电路单元的维持下拉单元均连接上述两级驱动电路单元的或非门单元生成的维持信号；本发明采用四级驱动单元循环驱动的方式，通过一对互补的低频信号控制两个或非门单元的工作将产生的维持信号交替传输给每一级维持下拉单元使用，提到了使用效率，并起到简化电路、减少电路中薄膜晶体管个数的目的。 【EN】The invention provides a grid scanning driving circuit and a liquid crystal display device, and relates to the field of liquid crystal panels, wherein the circuit comprises 4 m-level driving circuit units, and the 4-level driving units which are sequentially arranged are a repeating unit; wherein, the 4m-2 stage driving circuit unit and the 4m-1 stage driving circuit unit both contain NOR gate circuits to generate the maintaining signals. The sustain pull-down units of the nth (4m-3 is not less than n and not more than 4m) stage drive circuit units are connected with the sustain signals generated by the NOR gate units of the two stages of drive circuit units; the invention adopts a four-stage driving unit to circularly drive, controls the work of two NOR gate units through a pair of complementary low-frequency signals and alternately transmits the generated maintenance signals to each stage of maintenance pull-down units for use, thereby improving the use efficiency and achieving the purposes of simplifying the circuit and reducing the number of thin film transistors in the circuit.

摘要：【中文】本申请实施例提供了一种活体检测方法及装置，该方法包括：获取多个拍摄距离下采集的待检测用户的多张脸部相关图像；针对每张脸部相关图像，使用与该脸部相关图像对应的活体检测模型计算该脸部相关图像所对应的活体检测分值；根据得到的各个活体检测分值确定待检测用户是否为活体用户；其中，多个拍摄距离至少包括距离值大于第一设定值的远拍摄距离、距离值小于第二设定值的近拍摄距离以及距离值介于第一设定值和第二设定值之间的中拍摄距离。 【EN】The embodiment of the application provides a method and a device for detecting a living body, wherein the method comprises the following steps: acquiring a plurality of face related images of a user to be detected, which are acquired under a plurality of shooting distances; for each face-related image, calculating a live body detection score corresponding to the face-related image by using a live body detection model corresponding to the face-related image; determining whether the user to be detected is a living user according to the obtained living detection scores; the plurality of shooting distances at least comprise a far shooting distance with a distance value larger than a first set value, a close shooting distance with a distance value smaller than a second set value and a middle shooting distance with a distance value between the first set value and the second set value.

摘要：【中文】本说明书实施例公开一种证件验证方法、装置及电子设备。其中，在进行证件验证时，通过具有防伪标识的待验证证件在至少两种证件姿态下的至少两幅证件图像；再将各证件图像中包含的防伪标识进行相应特征比较，得到至少两幅证件图像之间的差异性验证结果；最后，基于差异性验证结果确定待验证证件的真伪性。 【EN】The embodiment of the specification discloses a certificate verification method and device and electronic equipment. When certificate verification is carried out, at least two certificate images of a certificate to be verified with an anti-counterfeiting mark are passed under at least two certificate postures; then, corresponding characteristic comparison is carried out on the anti-counterfeiting marks contained in the certificate images to obtain the difference verification result between at least two certificate images; and finally, determining the authenticity of the certificate to be verified based on the difference verification result.

摘要：【中文】本申请实施例公开了一种单光子隔离器，包括直线波导、环形微腔以及量子点，其中，量子点的跃迁频率与环形微腔的共振频率一致。当单光子从直线波导的正向端口入射时，被引入环形微腔内，在环形微腔内以逆时针回音壁方式进行传播，并形成右旋圆偏振光，与量子点发生耦合之后，从直线波导的反向端口射出。当单光子从直线波导的反向端口入射时，被引入环形微腔内，在环形微腔内以顺时针回音壁方式进行传播，并形成左旋圆偏振光，与量子点不会发生耦合，进而被隔离，不会从直线波导的正向端口射出。本申请实施例公开的单光子隔离器，无需在单光子隔离器中加入用于对原子进行控制的磁场装置和进行冷却的激光装置，有效降低了单光子隔离器的复杂度。 【EN】The embodiment of the application discloses a single photon isolator which comprises a linear waveguide, an annular microcavity and quantum dots, wherein the transition frequency of the quantum dots is consistent with the resonance frequency of the annular microcavity. When single photons are incident from a forward port of the linear waveguide, the single photons are introduced into the annular micro-cavity, propagate in the annular micro-cavity in a counterclockwise echo wall mode, form right-handed circularly polarized light, are coupled with the quantum dots, and then are emitted from a reverse port of the linear waveguide. When single photons are incident from a reverse port of the linear waveguide, the single photons are introduced into the annular micro-cavity, are transmitted in the annular micro-cavity in a clockwise echo wall mode, form left-handed circularly polarized light, are not coupled with the quantum dots, are isolated and cannot be emitted from a forward port of the linear waveguide. The single photon isolator disclosed by the embodiment of the application does not need to add a magnetic field device for controlling atoms and a laser device for cooling in the single photon isolator, and effectively reduces the complexity of the single photon isolator.

摘要：【中文】本发明公布了一种蠕墨铸铁材料，包括以下按质量百分比计的成分：碳为3.0‑3.9％，硅为2.3‑3.0％，铜为≤0.4％，铬为≤0.01％，硫为≤0.02％，磷为≤0.07％，锰为≤0.5％，余量为铁及不可避免的杂质；本发明的蠕墨铸铁材料不易开裂，散热性好，抗拉强度高达523Mpa，蠕化率高达95％；本发明还公开了蠕墨铸铁材料的制备方法，通过采用包底冲入法，在堤坝的一边放置转运包，转运包内包括有蠕化剂、孕育剂等，使得制得的蠕墨铸铁材料性能优异，蠕化率高，本发明还供了蠕墨铸铁应用于生产制动鼓、制动盘、减速器壳或模具，使得制动鼓、制动盘、减速器壳或模具的性能优异，寿命延长。 【EN】The invention discloses a vermicular graphite cast iron material which comprises the following components in percentage by mass: 3.0 to 3.9 percent of carbon, 2.3 to 3.0 percent of silicon, less than or equal to 0.4 percent of copper, less than or equal to 0.01 percent of chromium, less than or equal to 0.02 percent of sulfur, less than or equal to 0.07 percent of phosphorus, less than or equal to 0.5 percent of manganese, and the balance of iron and inevitable impurities; the vermicular cast iron material is not easy to crack, has good heat dissipation performance, the tensile strength is up to 523Mpa, and the vermicular rate is up to 95 percent; the invention also discloses a preparation method of the vermicular cast iron material, wherein a transfer ladle is arranged on one side of a dam by adopting a ladle bottom punching method, and the transfer ladle comprises a vermiculizer, an inoculant and the like, so that the prepared vermicular cast iron material has excellent performance and high vermicular rate.

摘要：【中文】本申请提供一种制备周期性光学超晶格的方法，该方法中，对铁电体晶体进行处理，获得周期性的钛扩散结构；在未扩散区域套刻周期性的目标电极，形成目标基片；对所述目标基片施加电场，则形成周期性光学超晶格。本申请提供的方法中，目标电极套刻在未扩散区域，且目标电极的宽度小于未扩散区域的宽度，在对目标基片施加电场时，目标电极对应的区域发生畴翻转，与目标电极相邻的钛扩散区域能够抑制该区域中畴的横向扩展，从而能够制备线宽较小的周期性光学超晶格。 【EN】The application provides a method for preparing periodic optical superlattice, in the method, ferroelectric crystal is processed to obtain periodic titanium diffusion structure; a periodic target electrode is coated on the non-diffusion area to form a target substrate; and applying an electric field to the target substrate to form the periodic optical superlattice. According to the method, the target electrode is arranged in the non-diffusion area in an alignment mode, the width of the target electrode is smaller than that of the non-diffusion area, when an electric field is applied to the target substrate, the area corresponding to the target electrode is subjected to domain inversion, the titanium diffusion area adjacent to the target electrode can inhibit the transverse expansion of the domains in the area, and therefore the periodic optical superlattice with a small line width can be prepared.