摘要：【中文】本发明涉及通信技术领域，提供一种电源控制方法、包络线跟踪电源及电子设备，所述方法包括：获取电源开关电路的输出电压；在电源开关电路的输出电压大于第一预设电压值的情况下，在目标时刻T控制电源开关电路的输入端输入关闭信号，其中，T＝t+△t，t为电源开关电路的输出电压大于第一预设电压值的时刻，△t为预设时长；在控制电源开关电路的输入端输入关闭信号的情况下，若电源输出端的输出电压小于第二预设电压值，则控制电源开关电路的输入端停止输入关闭信号，并控制电源开关电路的输入端输入误差放大电路的输出电压。本发明实施例能够提高射频PA的效率。 【EN】The invention relates to the technical field of communication, and provides a power supply control method, an envelope tracking power supply and electronic equipment.

摘要：【中文】本发明提供了一种圆珠笔芯，涉及圆珠笔的技术领域，包括笔头、第一笔管、第二笔管、固定机构和调节机构；固定机构用于将第二笔管固定于第一笔管内，第一笔管远离笔头的一端设置有用于阻隔油墨的硅油层；第二笔管用于向第一笔管内的笔头和硅油层输送油墨之间，通过第二笔管向第一笔管内部输送油墨时，不会破坏硅油层的密封作用，缓解现有技术中存在的圆柱笔芯为一次性产品，造成大量资源被浪费，以及对圆柱笔芯进行注油墨时，会破坏圆柱笔芯内部结构，导致无法使用，更加浪费的技术问题；调节机构用于调节第一笔管与笔头之间流通或闭合；保证了在向第一笔管注入油墨时不会有油墨从笔头和圆珠之间的间隙溢出，使得设计更加合理。 【EN】The invention provides a ball-point pen refill, which relates to the technical field of ball-point pens and comprises a pen point, a first pen tube, a second pen tube, a fixing mechanism and an adjusting mechanism, wherein the first pen tube is arranged on the pen point; the fixing mechanism is used for fixing the second pen tube in the first pen tube, and a silicon oil layer used for blocking ink is arranged at one end, far away from the pen point, of the first pen tube; the second pen tube is used for conveying ink between the pen point in the first pen tube and the silicon oil layer, when the ink is conveyed into the first pen tube through the second pen tube, the sealing effect of the silicon oil layer cannot be damaged, the technical problems that a large amount of resources are wasted due to the fact that a cylindrical pen core is a disposable product in the prior art, and when the ink is injected into the cylindrical pen core, the internal structure of the cylindrical pen core is damaged, the cylindrical pen core cannot be used, and the ink is wasted are solved; the adjusting mechanism is used for adjusting the communication or the closing between the first pen tube and the pen point; guaranteed not to have ink to spill over from the clearance between nib and the ball when injecting ink into first pen pipe for the design is more reasonable.

摘要：【中文】本发明公开了一种交流驱动的LED器件，包括LED模块、栅电极、电介质、单向导电性能元件。栅电极、电介质同时与LED模块的两个端电极构成电容器；栅电极联接交流电源一极；LED模块的两个端电极各经一单向导电性能元件联接交流电源的另一极，单向导电性能元件联接LED模块端电极一侧的极性与端电极相反。该交流驱动电致发光器件方案的优点是：结构简单，可在交流电的全周期发光，并且LED模块不直接承受电源电压，有利于延长LED模块的使用寿命。 【EN】The invention discloses an alternating current driven LED device which comprises an LED module, a gate electrode, a dielectric medium and a one-way conductive element. The gate electrode, the dielectric and the two terminal electrodes of the LED module form a capacitor at the same time; the grid electrode is connected with one pole of an alternating current power supply; two end electrodes of the LED module are respectively connected with the other electrode of the alternating current power supply through a one-way conductive element, and the polarity of one side of the one-way conductive element, which is connected with the end electrodes of the LED module, is opposite to that of the end electrodes. The scheme of the alternating current driven electroluminescent device has the advantages that: the LED module has a simple structure, can emit light in the full period of alternating current, does not directly bear power supply voltage, and is favorable for prolonging the service life of the LED module.

摘要：【中文】本发明公开了一种氧化钨水合物单颗粒拉曼基底制备方法，具体包括如下步骤：(1)将泡沫镍清洗再干燥待用；(2)将五水钨酸铵、六次甲基四胺粉末、超纯水，按照份数1：1：830混合成混合溶液待用；(3)将步骤(2)中的混合溶液倒入聚四氟乙烯内胆中，(4)将经过步骤(1)处理的泡沫镍投入聚四氟乙烯内胆中；然后封盖插入高压水热釜；再将高压水热釜放置于鼓风干燥箱内，以5℃/min的速率升温至105℃，在105℃至少保持12小时，让泡沫镍表面生长亚毫米级氧化钨水合物；清洗泡沫镍去杂；(5)再使用超声让步骤(4)中的氧化钨水合物单颗粒与泡沫镍脱离；干燥而得到氧化钨水合物单颗粒。本颗粒主要用于细胞色素C等分子的比率检测。 【EN】The invention discloses a preparation method of a tungsten oxide hydrate single-particle Raman substrate, which specifically comprises the following steps: (1) cleaning and drying the foamed nickel for later use; (2) ammonium tungstate pentahydrate, hexamethylenetetramine powder and ultrapure water are mixed according to the proportion of 1: 1: 830 to form a mixed solution; (3) pouring the mixed solution in the step (2) into a polytetrafluoroethylene inner container, and (4) putting the foamed nickel treated in the step (1) into the polytetrafluoroethylene inner container; then the sealing cover is inserted into the high-pressure hydrothermal kettle; then placing the high-pressure hydrothermal kettle in an air-blast drying oven, heating to 105 ℃ at the speed of 5 ℃/min, and keeping at 105 ℃ for at least 12 hours to grow the submillimeter tungsten oxide hydrate on the surface of the foamed nickel; cleaning the foamed nickel to remove impurities; (5) then, separating the tungsten oxide hydrate single particles from the foamed nickel in the step (4) by using ultrasound; drying to obtain the tungsten oxide hydrate single particles. The particle is mainly used for detecting the ratio of molecules such as cytochrome C.

摘要：【中文】本发明公开了铁离子掺杂氧化钨水合物覆盖的泡沫镍催化电极，包括采用六水氯化铁粉末作为铁离子掺杂源，采用五水钨酸铵为氧化钨水合物来源；通过高压水热釜在泡沫镍表面形成铁离子掺杂的四棱锥状氧化钨水合物覆盖层。其制备方法具体包括如下步骤：S1泡沫镍预处理：将泡沫镍去除表面污垢烘干备用；S2配制铁离子源和钨源混合液体：S3将步骤S2中的混合液体倒入聚四氟乙烯内衬中，再将步骤S1中得到的泡沫镍投入聚四氟乙烯内衬中，高压水热促进铁离子掺杂的氧化钨水合物生长；S4将步骤S3中的泡沫镍取出，充分清洗后烘干，得到铁离子掺杂氧化钨水合物覆盖的泡沫镍催化电极。该电极表面形成尖端放电效应，有望替代贵金属电极，大大的降低电催化制氢成本。 【EN】The invention discloses a foamed nickel catalytic electrode covered by iron ion doped tungsten oxide hydrate, which comprises the steps of adopting iron chloride hexahydrate powder as an iron ion doping source and adopting ammonium tungstate pentahydrate as a tungsten oxide hydrate source; and forming an iron ion doped quadrangular pyramid tungsten oxide hydrate covering layer on the surface of the foamed nickel through a high-pressure hydrothermal kettle. The preparation method specifically comprises the following steps: s1 pretreatment of foamed nickel: removing dirt on the surface of the foamed nickel and drying for later use; s2, preparing a mixed liquid of an iron ion source and a tungsten source: s3, pouring the mixed liquid obtained in the step S2 into a polytetrafluoroethylene lining, putting the foamed nickel obtained in the step S1 into the polytetrafluoroethylene lining, and promoting the growth of the iron ion-doped tungsten oxide hydrate through high-pressure hydrothermal; s4, taking out the foamed nickel in the step S3, fully cleaning and drying the foamed nickel, and obtaining the foamed nickel catalytic electrode covered by the iron ion doped tungsten oxide hydrate. The electrode surface forms a point discharge effect, is expected to replace a noble metal electrode, and greatly reduces the cost of electrocatalytic hydrogen production.

摘要：【中文】本发明公开了冶金行业换热技术领域的一种高承压自清洁换热器及其制造方法，包括两组换热器封头、壳体、介质一进口管、隔板、两组支撑板、介质二进口管、介质二出口管、介质一出口管和若干换热单元，两组支撑板密封焊接在壳体的内腔两侧，两组换热器封头分别密封固定在壳体的两端，通过采用跨窗口流动设计，将多根同心换热管同心装配，相对于管壳式换热器，在保证其设计简单的基础上，不仅具有更高的承压能力，同时提高了换热器的整体刚度和换热管的稳定性，而且更加突出了换热器的自清洁能力；与螺旋板式换热器相比，该换热器保存了螺旋板换热器的自清洁性的优点，同时提高了换热器的刚度，可在冶金行业具有广阔的应用价值。 【EN】The invention discloses a high-pressure-bearing self-cleaning heat exchanger and a manufacturing method thereof in the technical field of heat exchange in the metallurgical industry, and the heat exchanger comprises two groups of heat exchanger end enclosures, a shell, a medium I inlet pipe, a partition plate, two groups of supporting plates, a medium II inlet pipe, a medium II outlet pipe, a medium I outlet pipe and a plurality of heat exchange units, wherein the two groups of supporting plates are welded on two sides of an inner cavity of the shell in a sealing manner; compared with a spiral plate type heat exchanger, the heat exchanger has the advantages of self-cleaning performance of the spiral plate type heat exchanger, meanwhile, the rigidity of the heat exchanger is improved, and the heat exchanger has wide application value in the metallurgical industry.

摘要：【中文】本发明提供一种防冻堵的天然气集输系统及天然气集输系统防冻堵的方法。该天然气集输系统包括集气干线和计量干线，集气干线和计量干线的一端通过连接管线导通；集气干线和计量干线朝向连接管线的一端设置有第一集气支线和第一计量支线，第一集气支线和第一计量支线分别用于将集气干线和计量干线与第一单井导通，且第一单井不向集气干线和计量干线中通入井流物；第二集气支线和第二计量支线分别用于将集气干线和计量干线与第二单井导通；第二计量支线与计量干线之间的导通处设有第一控制机构，通过该第一控制机构控制来自于第二单井的井流物在计量干线中的流动方向。该天然气集输系统利用井流物在管线中逆向流动，达到防止冻堵、保护管线的目的。 【EN】The invention provides a natural gas gathering and transportation system capable of preventing freezing and blocking and a method for preventing freezing and blocking of the natural gas gathering and transportation system. The natural gas gathering and transporting system comprises a gas collection trunk line and a metering trunk line, wherein one ends of the gas collection trunk line and the metering trunk line are communicated through a connecting pipeline; the gas collection trunk line and the metering trunk line are provided with a first gas collection branch line and a first metering branch line at one end facing the connecting pipeline, the first gas collection branch line and the first metering branch line are respectively used for communicating the gas collection trunk line and the metering trunk line with a first single well, and well fluid is not introduced into the gas collection trunk line and the metering trunk line by the first single well; the second gas collection branch line and the second metering branch line are respectively used for communicating the gas collection trunk line and the metering trunk line with the second single well; and a first control mechanism is arranged at the communication part between the second metering branch line and the metering trunk line, and the flow direction of the well flow from the second single well in the metering trunk line is controlled by the first control mechanism. The natural gas gathering and transportation system achieves the purposes of preventing freezing blockage and protecting pipelines by utilizing the reverse flow of well fluid in the pipelines.

摘要：【中文】本发明公开了一种鉴别GS5基因和GLW7基因类型的引物及其应用，属于水稻品种鉴定技术领域。本发明通过将水稻GS5基因和GLW7基因简的单重复序列转变为酶切分子标记来鉴别GS5基因和GLW7基因类型，其核苷酸序列如SEQ ID NO.：1～6所示。利用本发明的分子标记，可以准确鉴定GS5和GLW7基因的有利变异类型，加快育种筛选效率及进程；本发明设计的酶切分子标记扩增效果好，且所选酶是价格较低的常用酶，可极大降低鉴定成本，适用于大量品种基因型分析。 【EN】The invention discloses a primer for identifying GS5 gene and GLW7 gene types and application thereof, belonging to the technical field of rice variety identification. The invention identifies the types of the GS5 gene and the GLW7 gene by converting simple repeated sequences of the GS5 gene and the GLW7 gene of rice into enzyme digestion molecular markers, wherein the nucleotide sequences are shown as SEQ ID No.: 1 to 6. By utilizing the molecular marker disclosed by the invention, the favorable variation types of GS5 and GLW7 genes can be accurately identified, and the breeding and screening efficiency and progress are accelerated; the enzyme digestion molecular marker designed by the invention has good amplification effect, and the selected enzyme is a common enzyme with lower price, so that the identification cost can be greatly reduced, and the enzyme digestion molecular marker is suitable for analyzing genotypes of a large number of varieties.

摘要：【中文】本发明提供一种多级反应中心氧化催化剂，所述催化剂包括活性炭基体，以及吸附在所述活性炭基体空隙内的金属共晶格掺杂的二氧化硅颗粒，同时利用活性炭的吸附功能和二氧化硅颗粒的微电池功能，应用在水处理领域不仅能够实现污染物的快速降解，而且体系中不再产生接触性金属氧化还原反应，催化剂的寿命和稳定性得到提升；本发明还提供所述催化剂的制备方法，采用溶剂法进行金属共晶格掺杂的二氧化硅颗粒的制备，能耗低，成分均匀且操作简单，具有广阔的应用前景。 【EN】The invention provides a multi-stage reaction center oxidation catalyst, which comprises an activated carbon matrix and metal co-lattice doped silica particles adsorbed in gaps of the activated carbon matrix, and can be applied to the field of water treatment, not only can the pollutants be rapidly degraded, but also no contact metal redox reaction is generated in a system when the catalyst is applied to the field of water treatment by utilizing the adsorption function of activated carbon and the micro-battery function of the silica particles, so that the service life and the stability of the catalyst are improved; the invention also provides a preparation method of the catalyst, and the preparation of the metal eutectic grid doped silicon dioxide particles is carried out by adopting a solvent method, so that the catalyst is low in energy consumption, uniform in components, simple to operate and wide in application prospect.

摘要：【中文】本发明属于基因工程、分子生物学等生物技术领域，具体涉及一种大肠杆菌表达可溶性重组蛋白的高效培养基及其制备方法，本培养基可提高大肠杆菌在细胞质内表达可溶性重组蛋白的成功率和产量。所述高效培养基选取M9培养基，添加山梨醇、乙醇、葡萄糖、蔗糖等基本成分，并辅以硫酸镁和氨苄青霉素，以IPTG为诱导剂，旨在调高外源蛋白的可溶性表达。所述高效培养基用于表达重组蛋白，特别是大肠杆菌表达可溶性重组蛋白。本培养基可以用大肠杆菌BL‑21或DH5α菌株作为反应菌，也可以用K12或origami B等大肠杆菌菌株作为反应菌。 【EN】The invention belongs to the biotechnology field of genetic engineering, molecular biology and the like, and particularly relates to a high-efficiency culture medium for expressing soluble recombinant protein by escherichia coli and a preparation method thereof, wherein the culture medium can improve the success rate and yield of expressing the soluble recombinant protein by the escherichia coli in cytoplasm, the high-efficiency culture medium selects an M9 culture medium, basic components such as sorbitol, ethanol, glucose, cane sugar and the like are added, magnesium sulfate and ampicillin are used as auxiliary materials, IPTG is used as an inducer, and the aim of increasing the soluble expression of exogenous protein is fulfilled.