摘要：【中文】本发明公开了一种大麻二酚的纯化方法。本发明以反相层析为核心，包括：装柱、柱平衡、上样、一次洗脱杂质、二次洗脱并收集浓缩洗脱液、柱再生，经过反相层析，浸膏中CBD含量可提高至90％以上。为进一步提高纯度，可在反相层析之后进行结晶，或在反向层析之前进行离子交换层析，本发明方法操作简单，目标物CBD载量大，获得产品纯度高，收率高，杂质去除完全，适于工业化推广应用。 【EN】The invention discloses a method for purifying cannabidiol. The invention takes reverse phase chromatography as a core, and comprises the following steps: loading the extract into a column, balancing the column, loading the sample, eluting impurities for the first time, eluting for the second time, collecting concentrated eluent, regenerating the column, and increasing the content of CBD in the extract to more than 90 percent through reversed phase chromatography. In order to further improve the purity, the method can be used for crystallization after reverse phase chromatography or ion exchange chromatography before the reverse phase chromatography, and has the advantages of simple operation, large CBD loading capacity of the target substance, high purity of the obtained product, high yield, complete impurity removal and suitability for industrial popularization and application.

摘要：【中文】本发明提供一种用于混凝土孔隙溶液检测传感器的敏感膜，原料主要包括基质材料、石墨烯和敏感材料，所述基质材料选自聚四氟乙烯、聚偏氟乙烯PVDF、聚氨酯、聚醚砜或聚酰亚胺中的一种或几种，所述敏感材料选自氯离子探针、pH值探针、电阻率监测探针、湿度探针中的一种或几种，通过静电喷雾法制备得到的敏感膜上均匀分散有敏感材料和均匀分布的孔结构，具有大的比表面积和良好亲水性，兼具优异的机械力学性能和化学稳定性，使用该敏感膜的传感器响应十分快速敏感，能够在线实时检测混凝土孔隙溶液的状况，尤其适合应用于土木工程混凝土这种严苛环境中。 【EN】The invention provides a sensitive membrane for a concrete pore solution detection sensor, which mainly comprises a matrix material, graphene and a sensitive material, wherein the matrix material is selected from one or more of polytetrafluoroethylene, polyvinylidene fluoride (PVDF), polyurethane, polyether sulfone or polyimide, the sensitive material is selected from one or more of a chloride ion probe, a pH value probe, a resistivity monitoring probe and a humidity probe, the sensitive material and a uniformly distributed pore structure are uniformly dispersed on the sensitive membrane prepared by an electrostatic spraying method, the sensitive membrane has a large specific surface area and good hydrophilicity, and has excellent mechanical properties and chemical stability.

摘要：【中文】一种超声图像降噪的各向异性扩散算法，在MSE（均值方差）、PSNR（峰值信噪比）和边缘保护三个方面的评价都要优于传统的超声图像降噪算法，也同时提高了语音识别的准确率，推动了AVSR项目的发展。 【EN】An anisotropic diffusion algorithm for ultrasonic image noise reduction is superior to a traditional ultrasonic image noise reduction algorithm in evaluation of MSE (mean square error), PSNR (peak signal-to-noise ratio) and edge protection, improves the accuracy of voice recognition and promotes the development of AVSR projects.

摘要：【中文】本发明提供一种检测混凝土孔隙溶液中氯离子光纤传感器的敏感膜的制备方法，将聚四氟乙烯、聚偏氟乙烯或聚酰亚胺和石墨烯溶解于DMSO中，得到前驱体溶液；加入接枝改性剂，油浴剧烈搅拌后溶解于2～5倍质量份的DMF中，得到母液溶液；加入无机纳米颗粒和一定重量份的氯离子荧光探针粉末，磁力搅拌后立即使用超声分散仪进行分散，得到均质的喷膜液，进行静电喷雾制备得到敏感膜；比表面积大，亲水性能良好，具有优异的机械力学性能和化学稳定性，尤其适合土木工程中应用于混凝土这种严苛环境下氯离子的检测；使用该氯敏膜的光纤传感器对氯离子的响应十分快速敏感，能够实时检测混凝土中氯离子含量。 【EN】The invention provides a preparation method of a sensitive membrane of an optical fiber sensor for detecting chloride ions in a concrete pore solution, which comprises the steps of dissolving polytetrafluoroethylene, polyvinylidene fluoride or polyimide and graphene in DMSO (dimethyl sulfoxide) to obtain a precursor solution; adding a grafting modifier, stirring vigorously in an oil bath, and dissolving in 2-5 times of DMF (dimethyl formamide) by mass to obtain a mother solution; adding inorganic nano particles and a certain weight part of chloride ion fluorescent probe powder, immediately dispersing by using an ultrasonic disperser after magnetic stirring to obtain a homogeneous film spraying liquid, and performing electrostatic spraying to prepare a sensitive film; the specific surface area is large, the hydrophilic performance is good, the mechanical property and the chemical stability are excellent, and the method is particularly suitable for detecting chloride ions in the severe environment of concrete in civil engineering; the optical fiber sensor using the chlorine-sensitive film is very quick and sensitive to the response of chloride ions, and can detect the content of the chloride ions in concrete in real time.

摘要：【中文】本发明提供了一种封井器挡泥伞装置及使用方法，包括挡泥漏斗和防溢管，挡泥漏斗下端连接有连接管线、连接管线下端连接有气胎由壬，防溢管下端连接有防磨法兰，防磨法兰下端开有与封井器相匹配的钢圈槽子，连接管线下端通过气胎由壬与防溢管上端相连，气胎由壬上还连接有气管线接头。把挡泥伞和防溢管分成两部分，可以有效调节挡泥伞的高度。安装好防溢管后直接在钻台面上提掉大方瓦，从而避免人员的高处作业。将封井器挡泥伞最大程度地接近转盘面，这样有利于在钻台泥浆泄漏时，能够有效挡泥。在挡泥伞内部安装气胎，挡泥伞套在防溢管上后接通下部气管线，将内气胎充气自动与防溢管密封，从而实现挡泥伞的有效密封。 【EN】The invention provides a mud-blocking umbrella device of a well sealer and a using method thereof, comprising a mud-blocking funnel and an anti-overflow pipe, wherein the lower end of the mud-blocking funnel is connected with a connecting pipeline, the lower end of the connecting pipeline is connected with an air tyre union, the lower end of the anti-overflow pipe is connected with an anti-abrasion flange, the lower end of the anti-abrasion flange is provided with a steel ring groove matched with the well sealer, the lower end of the connecting pipeline is connected with the upper end of the anti-overflow pipe through the air tyre union, and the air tyre union is also connected with an air pipeline joint. The mud blocking umbrella and the anti-overflow pipe are divided into two parts, so that the height of the mud blocking umbrella can be effectively adjusted. After the anti-overflow pipe is installed, the large square tile is directly lifted off on the drilling platform surface, so that the high-altitude operation of personnel is avoided. The mud blocking umbrella of the blowout preventer is close to the surface of the rotary table to the maximum extent, so that mud can be effectively blocked when mud leaks from the drill floor. The air tyre is arranged in the mud blocking umbrella, the mud blocking umbrella is sleeved on the anti-overflow pipe and then is communicated with the lower air pipeline, the inner air tyre is inflated to be automatically sealed with the anti-overflow pipe, and therefore the effective sealing of the mud blocking umbrella is achieved.