摘要：【中文】公开一种非定常等离子体激励布局的实现方法，包括：利用数值仿真得到近失速工况压气机转子叶尖区域流动特征；基于近失速工况压气机转子叶尖区域流动特征，确定等离子体激励诱导形成体积力方向的变化规律；依据函数f(t)的曲线，获得弯曲的等离子体激励布局。本发明方法基于近失速点压气机转子叶尖流动特性设计非定常的等离子体激励布局，使得等离子体激励诱导体积力的方向沿周向不断变化，时刻与主/回流交界面垂直，实现对压气机转子叶尖区域流场的非定常激励，从而实现对压气机失速的高效抑制。 【EN】A method for realizing an unsteady plasma excitation layout is disclosed, which comprises the following steps: obtaining the flow characteristics of the rotor blade tip region of the compressor under the near stall condition by utilizing numerical simulation; determining a change rule of a volume force direction formed by plasma excitation induction based on the flow characteristics of the rotor blade tip region of the compressor under the near stall condition; a curved plasma excitation profile is obtained according to the curve of the function f (t). The method of the invention designs an abnormal plasma excitation layout based on the flow characteristics of the rotor blade tip of the compressor near the stall point, so that the direction of the plasma excitation induced volume force is continuously changed along the circumferential direction, and the moment is vertical to the main/backflow interface, thereby realizing the abnormal excitation of the flow field of the rotor blade tip region of the compressor, and further realizing the efficient inhibition of the stall of the compressor.

摘要：【中文】本发明涉及一种聚对苯二甲酸丁二醇酯催化剂及其制备方法。主要解决现有技术中PBT聚合过程中采用钛系催化剂出现易水解、反应速度不够等问题，通过采用一种催化剂，包括以下原料物质的反应产物：(1)具有以通式的钛化合物A；(2)选自具有2～10个碳原子的二醇B；(3)选自有机酸中的至少一种脂肪族有机酸C；其制备方法为：a)将所述钛化合物A和脂肪族有机酸C先反应，并除去副产物醇或醇水混合物，得到钛化合物A和脂肪族有机酸C的络合物；b)将步骤a)得到的络合物加入二醇B，得到所述催化剂的技术方案，较好的解决了该问题，可用于聚对苯二甲酸丁二醇酯的工业化生产中。 【EN】The invention relates to a polybutylene terephthalate catalyst and a preparation method thereof. The catalyst mainly solves the problems of easy hydrolysis, insufficient reaction speed and the like in the process of PBT polymerization in the prior art by adopting a titanium catalyst, and comprises the reaction product of the following raw materials: (1) titanium compound A with the general formula; (2) selected from diols B having 2 to 10 carbon atoms; (3) at least one aliphatic organic acid C selected from organic acids; the preparation method comprises the following steps: a) reacting the titanium compound A with an aliphatic organic acid C, and removing a byproduct alcohol or an alcohol-water mixture to obtain a complex of the titanium compound A and the aliphatic organic acid C; b) the technical scheme of adding the complex obtained in the step a) into the diol B to obtain the catalyst better solves the problem and can be used for the industrial production of polybutylene terephthalate.

摘要：【中文】本发明涉及一种抑制THF生成及耐水解的催化剂组合物及其制备方法和应用，主要解决现有技术中PBT钛系催化剂聚合过程中易生成副产物四氢呋喃的问题，通过采用一种催化剂组合物，包括钛化合物与至少含二个羟基的醇的反应产物、羟基羧酸以及碱的混合物；其中，所述羟基羧酸与钛元素的摩尔比为(2～4.5):1，所述碱与钛元素的摩尔比为(0.01～0.1):1的技术方案，较好地解决了该问题，可用于聚对苯二甲酸丁二醇酯等聚酯的工业化生产中。 【EN】The invention relates to a catalyst composition for inhibiting THF (tetrahydrofuran) generation and hydrolysis resistance as well as a preparation method and application thereof, mainly solving the problem that tetrahydrofuran is easily generated as a byproduct in the polymerization process of a PBT titanium catalyst in the prior art, and adopting a catalyst composition comprising a reaction product of a titanium compound and alcohol containing at least two hydroxyl groups, hydroxycarboxylic acid and a mixture of alkali; the technical scheme that the molar ratio of the hydroxycarboxylic acid to the titanium element is (2-4.5):1, and the molar ratio of the alkali to the titanium element is (0.01-0.1):1 better solves the problem, and can be used in the industrial production of polyesters such as polybutylene terephthalate and the like.

摘要：【中文】本发明涉及一种连续开环制备聚乙交酯的方法及催化剂和制备方法，主要解决现有技术中存在的连续开环聚合制备聚乙交酯的工艺复杂、聚合时间长、聚乙交酯产品特性粘度和重均分子量不稳定的问题。本发明通过采用一种钛系催化剂，包括以下原料物质的反应产物：具有以下通式的钛化合物：Ti(OR)₄；R为1～10个碳原子的烷基；具有2～10个碳原子的二元醇；至少一种脂肪族有机酸；至少一种磷酸酯化合物；其中，以摩尔比计，所述二元醇:钛化合物为1～150：1，所述脂肪族有机酸:钛化合物为1～10：1，所述磷酸酯化合物:钛化合物为0.1～5：1的技术方案，较好地解决了该问题，可用于连续开环制备聚乙交酯的工业化生产中。 【EN】The invention relates to a method for preparing polyglycolide through continuous ring opening, a catalyst and a preparation method, and mainly solves the problems of complex process, long polymerization time and unstable intrinsic viscosity and weight average molecular weight of polyglycolide products in the prior art for preparing polyglycolide through continuous ring opening polymerization. The invention adopts a titanium catalyst, which comprises the reaction product of the following raw materials: a titanium compound having the general formula: ti (OR)₄(ii) a R is an alkyl group having 1 to 10 carbon atoms; a glycol having 2 to 10 carbon atoms; at least one aliphatic organic acid; at least one phosphate compound; wherein, the molar ratio of the dihydric alcohol to the titanium compound is 1-150: 1, the aliphatic organic acid is a titanium compound of 1-10: 1, the phosphate ester compound is a titanium compound, and the content of the phosphate ester compound is 0.1-5: the technical scheme 1 can be used for the industrial production of preparing polyglycolide by continuous ring opening.

摘要：【中文】本发明涉及一种聚乙醇酸的制备方法，主要解决现有技术中存在的聚乙醇酸进行熔融加工时容易热降解的问题，通过采用一种聚乙醇酸的制备方法，包括将乙交酯在催化剂、热稳定剂存在下聚合得到聚乙醇酸的步骤；其中，所述热稳定剂选自磷酸酯、亚磷酸酯和含硫化合物中的至少一种的技术方案，较好地解决了该问题，可用于聚乙醇酸的工业化生产中。 【EN】The invention relates to a preparation method of polyglycolic acid, which mainly solves the problem that the polyglycolic acid is easy to be thermally degraded during the melt processing in the prior art, and adopts the preparation method of the polyglycolic acid, which comprises the step of polymerizing glycolide in the presence of a catalyst and a heat stabilizer to obtain the polyglycolic acid; wherein, the heat stabilizer is selected from at least one of phosphate, phosphite and sulfur-containing compound, thereby better solving the problem and being applicable to the industrial production of polyglycolic acid.

摘要：【中文】本发明涉及一种低端羧基PBT树脂的制备方法，主要解决现有技术PBT聚合过程中端羧基不易控制，导致切片粘度降低，颜色发黄，从而影响PBT树脂的品质的问题，通过采用一种低端羧基PBT树脂的制备方法，采用按照如下组成所述原料反应后得到的催化剂进行制备：(1)具有以下通式的钛化合物Ti(OR)₄；(2)选自具有2～10个碳原子的二醇B；(3)选自元素周期表IIA中的一种金属化合物C；(4)选自有机酸中的至少一种脂肪族有机酸D，以精对苯二甲酸和1,4‑丁二醇为原料加入该催化剂，最终得到低端羧基的聚对苯二甲酸丁二醇酯树脂的技术方案，较好的解决了该问题，可用于聚对苯二甲酸丁二醇酯的工业化生产中。 【EN】The invention relates to a preparation method of a low-end carboxyl PBT resin, which mainly solves the problems that in the prior art, the end carboxyl is not easy to control in the polymerization process of PBT, so that the slice viscosity is reduced, the color is yellow, and the quality of the PBT resin is influenced, and the preparation method of the low-end carboxyl PBT resin adopts a catalyst obtained by reacting the following raw materials: (1) titanium compound having the following general formula Ti (OR)₄(ii) a (2) Selected from diols B having 2 to 10 carbon atoms; (3) a metal compound C selected from periodic Table IIA; (4) at least one aliphatic organic acid D selected from organic acids is added into the catalyst by taking purified terephthalic acid and 1, 4-butanediol as raw materials, and finally the polybutylene terephthalate resin with low carboxyl is obtained.

摘要：【中文】本发明提供了一种高速列车车载设备电磁敏感性预测模型的建模方法，基于神经网络建模原理，利用实际测试数据构建神经网络模型的训练及验证数据集，避免了仿真建模所遇到的需探测设备的内部电路等问题。通过选择合适的神经网络建模方法及对参数合理的初始化设置，最终以训练数据集完成了对于模型的训练，并利用验证集对模型预测结果的准确性进行了验证分析，证明了所建立的神经网络快速预测模型是有效的，这为高速动车组车载设备的电磁敏感性分析提供了新的有效途径。 【EN】The invention provides a modeling method of an electromagnetic sensitivity prediction model of high-speed train vehicle-mounted equipment, which is based on a neural network modeling principle and utilizes actual test data to construct a training and verification data set of a neural network model, thereby avoiding the problems of internal circuits of equipment to be detected and the like in simulation modeling. By selecting a proper neural network modeling method and initializing and setting reasonable parameters, the training of the model is finally completed by a training data set, and the accuracy of the model prediction result is verified and analyzed by using a verification set, so that the established neural network rapid prediction model is proved to be effective, and a new effective way is provided for the electromagnetic sensitivity analysis of the vehicle-mounted equipment of the high-speed motor train unit.

摘要：【中文】一种测定瓜果中植物生长调节剂残留量的方法，具体涉及药残检测领域，该方法包括如下步骤：将待测样品匀浆，且加入提取剂，搅拌均匀后，得到样品浆液；在样品浆液中加入色素沉淀剂以及基质防腐剂，混匀后，经离心处理，得到上清液和残渣；上清液经旋蒸至干后，采用纯净水复溶，得到样本溶液；在样本溶液中加入磁性吸附剂，离心振荡后，脱附，得到附着有吸附质的磁性吸附剂和余液；磁性吸附剂经洗脱剂洗脱，得到洗脱液和脱附完成的磁性吸附剂；洗脱液经氮吹至干，并采用乙腈‑甲酸水溶液复溶，过滤膜，得到上机分析液；上机分析液经高效液相色谱串联质谱法分析测定，得到各植物生长调节剂的回收率。本发明具有准确性高以及操作简单的优点。 【EN】A method for measuring the residual quantity of plant growth regulators in melons and fruits, in particular to the field of medicine residue detection, which comprises the following steps: homogenizing a sample to be detected, adding an extracting agent, and uniformly stirring to obtain sample slurry; adding a pigment precipitator and a matrix preservative into the sample slurry, uniformly mixing, and centrifuging to obtain a supernatant and residues; after the supernatant is steamed to be dry, re-dissolving the supernatant in purified water to obtain a sample solution; adding a magnetic adsorbent into the sample solution, centrifugally oscillating, and desorbing to obtain the magnetic adsorbent attached with adsorbate and a residual solution; eluting the magnetic adsorbent by an eluent to obtain an eluent and the desorbed magnetic adsorbent; blowing the eluent to be dry by nitrogen, re-dissolving by adopting acetonitrile-formic acid aqueous solution, and filtering by a membrane to obtain an upper computer analysis solution; and analyzing and determining the upper computer analysis liquid by a high performance liquid chromatography-tandem mass spectrometry method to obtain the recovery rate of each plant growth regulator. The method has the advantages of high accuracy and simplicity in operation.

摘要：【中文】本发明提供一种跨摄像头的行人重识别方法及系统，其通过对训练数据集中各图像进行摄像风格转移网络的训练获得包含有多种假图像样本的辅助训练集，从而降低由摄像头风格对识别准确度的影响。本发明还通过不同粒度的分割，使得图像中的局部特征能够更集中的去表现所在分区的特征信息，从而过滤其他区域的信息，使重识别网络获取的描述特征更具有区分力。由此，本发明能够提升行人重识别的准确率和泛化性，用于对于广域视频监控场景下行人追踪与搜索时能够显著提高识别效果，降低外界环境因素、摄像头因素或行人姿态的影响。 【EN】The invention provides a cross-camera pedestrian re-identification method and a cross-camera pedestrian re-identification system, which can obtain an auxiliary training set containing various false image samples by training a camera style transfer network on each image in a training data set, thereby reducing the influence of the camera style on the identification accuracy. The invention also enables the local characteristics in the image to express the characteristic information of the subarea in a more concentrated way through the segmentation of different granularities, thereby filtering the information of other areas and enabling the description characteristics obtained by the re-identification network to have more distinguishing force. Therefore, the accuracy and the generalization of pedestrian re-identification can be improved, the identification effect can be obviously improved when the pedestrian is tracked and searched in a wide area video monitoring scene, and the influence of external environment factors, camera factors or pedestrian postures is reduced.

摘要：【中文】一种大樱桃枝干流胶病病斑的治疗方法，包括如下步骤：a、病斑刮除：春季3‑5月份，用锋利的刀子刮除树干上附着的胶体和坏死的树皮、露出嫩皮；b、高锰酸钾泥浆制作：将高锰酸钾溶液加入剔除草根、砂子等杂质的土中，搅拌调成面糊状泥浆；c、泥浆涂抹：将调制好的泥浆用刷子均匀涂抹于除刮病斑的部位；d、塑料薄膜包扎：涂抹泥浆后，用聚乙烯地膜包扎物对按涂抹泥浆的部位进行缠绕包扎；e、解除包扎：翌年春季，除去包扎物，察看伤口愈合情况。本发明采用质量浓度1.5‑2.5%高锰酸钾泥浆治疗流胶病斑不仅病斑治愈率高，且取材料容易、成本低廉、操作简单，且节本增效显著，便于大面积推广应用。 【EN】A method for treating gummosis lesions of branches and trunks of large cherries comprises the following steps: a. and (3) scraping the scab: in spring for 3-5 months, scraping colloid and necrotic bark attached to trunk with sharp knife to expose tender bark; b. preparing potassium permanganate slurry: adding the potassium permanganate solution into soil with impurities such as grass roots and sand removed, and stirring to prepare paste-like slurry; c. slurry smearing: uniformly coating the prepared slurry on the parts for removing the scabs by using a brush; d. wrapping with a plastic film: after the slurry is coated, a polyethylene mulching film wrapping object is used for wrapping the part coated with the slurry; e. removing the bandaging: in the spring of the next year, the dressing was removed and the wound healing was observed. The invention adopts the potassium permanganate slurry with the mass concentration of 1.5-2.5% to treat the gummosis scab, has high scab cure rate, easy material taking, low cost, simple operation, obvious cost saving and efficiency improvement and convenient large-area popularization and application.