摘要：【中文】本发明提供一种转移大面积二维材料的方法，包括：步骤1.采用高熔点材料基底作为生长基底；步骤2.采用低熔点材料作为熔池材料，并将该熔池材料放置在生长基底上；步骤3.将高温区的温度升高到待转移材料的生长温度，使熔池材料形成液态熔池，然后开始生长待转移材料，使该待转移材料大面积生长在熔池表面上，形成大面积二维材料；步骤4.将生长有大面积二维材料的生长基底移动到低温区，低温区的温度应低于目标基底的熔点、并且在熔池材料的初熔温度附近，使熔池材料保持液态；步骤5.将目标基底放置在熔池近旁，通过位于熔池上方的辊轴的转动和移动，将大面积二维材料转移到目标基底上。通过本方法能够实现大面积二维材料的规模制备转移。 【EN】The invention provides a method for transferring a large-area two-dimensional material, which comprises the following steps: step 1, adopting a high-melting-point material substrate as a growth substrate; step 2, adopting a low-melting-point material as a molten pool material, and placing the molten pool material on a growth substrate; step 3, raising the temperature of the high-temperature area to the growth temperature of the material to be transferred to enable the material of the molten pool to form a liquid molten pool, and then starting to grow the material to be transferred to enable the material to be transferred to grow on the surface of the molten pool in a large area to form a large-area two-dimensional material; step 4, moving the growth substrate with the large-area two-dimensional material to a low-temperature area, wherein the temperature of the low-temperature area is lower than the melting point of the target substrate and is near the initial melting temperature of the molten pool material, so that the molten pool material is kept in a liquid state; and 5, placing the target substrate near the molten pool, and transferring the large-area two-dimensional material onto the target substrate through rotation and movement of a roller shaft positioned above the molten pool. The method can realize large-scale preparation and transfer of large-area two-dimensional materials.

摘要：【中文】本发明公开了一种搅拌站粉料定量供应系统及其定量供应方法，属于搅拌站技术领域。系统包括依次设置的粉料罐、空气输送斜槽、计量仓和搅拌装置，在空气输送斜槽与计量仓之间还设置有缓存罐；计量仓与搅拌装置之间设置有蝶阀Ⅰ，缓存罐与计量仓之间设置有蝶阀Ⅱ，空气输送斜槽与缓存罐之间设置有蝶阀Ⅲ；缓存罐包括缓存罐本体和料位器，料位器竖直设置在缓存罐本体内；粉料罐包括粉料罐本体和设置于其内部的浮球料位器，浮球料位器浮动于粉料罐本体内粉料的表面。本发明通过在空气输送斜槽与计量仓之间设置缓存罐，以存储空气输送斜槽多输送的粉料，避免该部分粉料直接进入计量仓，从而实现粉料的精确定量输送，保证制备的混凝土等浆料的质量。 【EN】The invention discloses a quantitative powder supply system and a quantitative powder supply method for a mixing station, and belongs to the technical field of mixing stations. The system comprises a powder tank, an air delivery chute, a metering bin and a stirring device which are sequentially arranged, wherein a cache tank is also arranged between the air delivery chute and the metering bin; a butterfly valve I is arranged between the metering bin and the stirring device, a butterfly valve II is arranged between the buffer tank and the metering bin, and a butterfly valve III is arranged between the air conveying chute and the buffer tank; the buffer tank comprises a buffer tank body and a material level indicator, and the material level indicator is vertically arranged in the buffer tank body; the powder tank comprises a powder tank body and a floating ball material level device arranged in the powder tank body, and the floating ball material level device floats on the surface of powder in the powder tank body. According to the invention, the buffer tank is arranged between the air conveying chute and the metering bin to store the powder which is conveyed by the air conveying chute more, so that the powder is prevented from directly entering the metering bin, the accurate quantitative conveying of the powder is realized, and the quality of prepared slurry such as concrete is ensured.

摘要：【中文】本发明公开了一种搅拌站及其制浆方法，属于搅拌站技术领域。搅拌站包括搅拌装置、粉料供应系统、骨料供应系统和供水系统；搅拌装置内壁上设置有内衬板，内衬板上设置有湿度传感器；供水系统包括供水总管和若干供水支管，供水总管上设置有流量计和阀门；粉料供应系统包括依次连通设置的粉料罐、空气输送斜槽、缓存罐和计量仓，计量仓设置在搅拌装置的投料口上；计量仓与搅拌装置之间设置有蝶阀Ⅰ，缓存罐与计量仓之间设置有蝶阀Ⅱ，空气输送斜槽与缓存罐之间设置有蝶阀Ⅲ。本发明能够利用粉料供应系统对制浆过程中加入的粉料进行精确定量控制，并根据湿度传感器反馈的混凝土料浆湿度确定供水量，因此能够制备出物料配比精确的优质混凝土料浆。 【EN】The invention discloses a mixing plant and a pulping method thereof, and belongs to the technical field of mixing plants. The mixing station comprises a mixing device, a powder supply system, an aggregate supply system and a water supply system; an inner lining plate is arranged on the inner wall of the stirring device, and a humidity sensor is arranged on the inner lining plate; the water supply system comprises a water supply main pipe and a plurality of water supply branch pipes, wherein the water supply main pipe is provided with a flowmeter and a valve; the powder supply system comprises a powder tank, an air conveying chute, a buffer tank and a metering bin which are sequentially communicated, and the metering bin is arranged on a feed inlet of the stirring device; be provided with butterfly valve I between measurement storehouse and the agitating unit, be provided with butterfly valve II between buffer memory jar and the measurement storehouse, be provided with butterfly valve III between air delivery chute and the buffer memory jar. The invention can utilize the powder supply system to accurately and quantitatively control the powder added in the pulping process, and determine the water supply amount according to the humidity of the concrete slurry fed back by the humidity sensor, thereby preparing the high-quality concrete slurry with accurate material proportion.

摘要：【中文】本发明提供一种石墨烯光纤及其制备方法，本发明所提供的制备方法，其特征在于，包括如下步骤：步骤1.将光纤作为生长基质，在光纤的上游放置液态金属；步骤2.在惰性气氛和H₂的气氛中，升温至生长温度，并通入碳源，恒温一段时间，在光纤上生长石墨烯薄膜；步骤3.待生长完成后，冷却至室温，得到石墨烯光纤。本发明使用金属蒸汽作为催化剂，允许石墨化的碳直接沉积在光纤表面，形成低缺陷的石墨烯薄膜，本方法不需要生长后的蚀刻和金属催化剂的蒸发，不存在任何可能的损坏风险，能够得到更高质量的石墨烯薄膜。 【EN】The invention provides a graphene optical fiber and a preparation method thereof, and the preparation method provided by the invention is characterized by comprising the following steps: step 1, taking an optical fiber as a growth substrate, and placing liquid metal on the upstream of the optical fiber; step 2, in inert atmosphere and H₂Heating to a growth temperature, introducing a carbon source, keeping the temperature constant for a period of time, and growing a graphene film on the optical fiber; and 3, after the growth is finished, cooling to room temperature to obtain the graphene optical fiber. According to the method, the metal steam is used as the catalyst, the graphitized carbon is allowed to be directly deposited on the surface of the optical fiber to form the low-defect graphene film, the method does not need etching after growth and evaporation of the metal catalyst, no possible damage risk exists, and the graphene film with higher quality can be obtained.

摘要：【中文】一种走线架，包括：走线架装置、底板以及对称连接在底板上的前侧门框架和后侧门框架，后侧门框架的两侧板之间连接有多根横梁，前侧门框架的两侧板之间连接有多根横梁；走线架装置包括连接成整体的垂直走线架和水平走线架，垂直走线架和水平走线架均包括强电走线架和弱电走线架；水平走线架通过滑动装置滑动连接在后侧门框架的横梁与前侧门框架的横梁之间，且水平走线架能从前侧门框架内滑出，垂直走线架通过滑动装置和底板滑动连接；本发明提供的走线架，其能有效解决现有布线不牢固，经常出现脱落、故障排除、整理线缆困难等问题，走线或布线规范标准，操作方便，施工直观，教学效果好。 【EN】A rack, comprising: the wiring frame device, the bottom plate, the front side door frame and the rear side door frame are symmetrically connected to the bottom plate, a plurality of cross beams are connected between two side plates of the rear side door frame, and a plurality of cross beams are connected between two side plates of the front side door frame; the cabling rack device comprises a vertical cabling rack and a horizontal cabling rack which are connected into a whole, wherein the vertical cabling rack and the horizontal cabling rack respectively comprise a strong current cabling rack and a weak current cabling rack; the horizontal cabling rack is connected between the cross beam of the rear side door frame and the cross beam of the front side door frame in a sliding manner through a sliding device, the horizontal cabling rack can slide out from the front side door frame, and the vertical cabling rack is connected with the bottom plate in a sliding manner through the sliding device; the wiring rack provided by the invention can effectively solve the problems of insecure wiring, frequent falling, trouble shooting, difficult cable arrangement and the like in the conventional wiring, and has the advantages of standard wiring or wiring, convenience in operation, intuitive construction and good teaching effect.

摘要：【中文】本发明提出了一种光纤熔接机用推送装置及其使用方法，该装置包括一对移动小车、推进构件、一对线缆固定构件和控制构件；移动小车左右对称设置在工作台上；移动小车的前轴上套设一推动齿轮组；推动齿轮组固定在一传动杆的下端；传动杆的上端穿出车板并连接一过渡齿轮；推进构件，用于将热缩套管放置在加热器上，推进构件包括一与过渡齿轮啮合的链条；收容台的左侧末端固定一翻转杆；翻转杆沿固定设置的翻转坡移动以降低高度，线缆固定构件均用于固定待熔接的两段光纤并调节翻转杆的高度。本发明通过移动小车将已熔接光纤移动到加热器，在移动的过程中同时将热缩套管水平推送到加热器上方，避免手动移动中熔接点断裂现象。 【EN】The invention provides a pushing device for an optical fiber fusion splicer and a using method thereof, wherein the device comprises a pair of moving trolleys, a pushing member, a pair of cable fixing members and a control member; the movable trolleys are arranged on the workbench in a bilateral symmetry manner; a pushing gear set is sleeved on a front shaft of the movable trolley; the pushing gear set is fixed at the lower end of a transmission rod; the upper end of the transmission rod penetrates through the vehicle plate and is connected with a transition gear; the pushing member is used for placing the heat-shrinkable sleeve on the heater and comprises a chain meshed with the transition gear; a turning rod is fixed at the tail end of the left side of the accommodating platform; the turnover rod moves along a fixedly arranged turnover slope to reduce the height, and the cable fixing components are used for fixing two sections of optical fibers to be welded and adjusting the height of the turnover rod. The invention moves the welded optical fiber to the heater through the moving trolley, and horizontally pushes the heat-shrinkable sleeve above the heater in the moving process, thereby avoiding the phenomenon of welding point fracture in manual movement.

摘要：【中文】本发明提出了一种外置式光纤熔接机推送装置及其推送方法，外置式光纤熔接机推送装置包括：支架框、一对翻转构件、一对线缆固定构件、传送袋、左支撑构件和右支撑构件；支架框围在工作台的外侧；翻转构件用于将已熔接的两段光纤由光纤熔接机本体移动至加热器；线缆固定构件用于固定待熔接的两段光纤；传送袋用于支撑热缩套管和已熔接的两段光纤；左支撑构件用于固定传送袋；右支撑构件用于收紧传送袋。本发明可自动将热缩套管和已熔接光纤，由光纤熔接机本体推送至加热器，确保已熔接光纤在加热移动中熔接点不会出现松动现象，提高光纤的接续质量，缩短熔接时间。 【EN】The invention provides an external optical fiber fusion splicer pushing device and a pushing method thereof, wherein the external optical fiber fusion splicer pushing device comprises: the conveying device comprises a support frame, a pair of overturning members, a pair of cable fixing members, a conveying bag, a left supporting member and a right supporting member; the bracket frame is enclosed at the outer side of the workbench; the overturning component is used for moving the two sections of fused optical fibers to the heater from the optical fiber fusion splicer body; the cable fixing component is used for fixing two sections of optical fibers to be welded; the conveying bag is used for supporting the heat-shrinkable sleeve and the two sections of fused optical fibers; the left supporting member is used for fixing the conveying bag; the right support member is used to tighten the transfer bag. The invention can automatically push the heat-shrinkable sleeve and the welded optical fiber from the optical fiber welding machine body to the heater, thereby ensuring that the welding point of the welded optical fiber is not loosened during the heating movement, improving the connection quality of the optical fiber and shortening the welding time.

摘要：【中文】本发明公开了一种基于机器学习的水文预报精度评价方法及系统，属于水文预报精度评价领域，包括：获得同一断面的水文预报结果和同期实测结果，以计算洪峰评价指标、洪量评价指标及径流过程评价指标，形成一条评价指标数据；利用已训练好的水文预报精度评价模型识别评价指标数据所属的精度等级，作为水文预报精度评价结果；水文预报精度评价模型为机器学习分类模型；精度等级的划分包括：根据历史数据分别计算每一场历史洪水事件对应的评价指标数据，作为历史评价指标数据；对历史评价指标数据进行聚类，得到C个类别，分别对应C个精度等级；根据类别内部的评价指标水平，对相应的精度等级进行优劣排序。本发明能够实现对水文预报精度的准确评级。 【EN】The invention discloses a hydrologic forecast accuracy evaluation method and system based on machine learning, belonging to the hydrologic forecast accuracy evaluation field, comprising the following steps: acquiring hydrologic forecast results and synchronous actual measurement results of the same section to calculate flood peak evaluation indexes, flood volume evaluation indexes and runoff process evaluation indexes to form evaluation index data; identifying the accuracy grade to which the evaluation index data belongs by using the trained hydrologic prediction accuracy evaluation model as a hydrologic prediction accuracy evaluation result; the hydrologic prediction precision evaluation model is a machine learning classification model; the division of the precision grade comprises the following steps: respectively calculating evaluation index data corresponding to each historical flood event according to the historical data to serve as historical evaluation index data; clustering historical evaluation index data to obtain C categories which respectively correspond to C precision levels; and sorting the corresponding precision grades according to the evaluation index level in the category. The invention can realize accurate rating of hydrologic forecast precision.