摘要：【中文】一种三维氟氮掺杂石墨烯/二氧化钛复合材料及制备方法，涉及纳米复合材料领域。首先将氧化石墨烯加入去离子水中制得氧化石墨烯分散液；然后将氟钛酸铵和尿素加入到氧化石墨烯分散液中，分散均匀后进行水热反应得到三维氟氮石墨烯/二氧化钛凝胶，并进行冷冻干燥处理，得到三维氟氮掺杂石墨烯/二氧化钛预产物；最后将三维氟氮掺杂石墨烯/二氧化钛预产物进行高温煅烧处理，即制得三维氟氮掺杂石墨烯/二氧化钛复合材料。通过氟和氮元素的掺杂改性，显著提高三维石墨烯的电导率和电子迁移率，有效抑制二氧化钛光生电子‑空穴对复合，三维石墨烯为二氧化钛电子的高效传输提供载体，同时能高效吸附污染物，进一步提高光催化性能。 【EN】A three-dimensional fluorine-nitrogen doped graphene/titanium dioxide composite material and a preparation method thereof relate to the field of nano composite materials. Firstly, adding graphene oxide into deionized water to prepare a graphene oxide dispersion liquid; then adding ammonium fluotitanate and urea into the graphene oxide dispersion liquid, uniformly dispersing, then carrying out hydrothermal reaction to obtain three-dimensional fluorine-nitrogen graphene/titanium dioxide gel, and carrying out freeze drying treatment to obtain a three-dimensional fluorine-nitrogen doped graphene/titanium dioxide pre-product; and finally, carrying out high-temperature calcination treatment on the three-dimensional fluorine-nitrogen doped graphene/titanium dioxide pre-product to obtain the three-dimensional fluorine-nitrogen doped graphene/titanium dioxide composite material. Through doping modification of fluorine and nitrogen elements, the conductivity and the electron mobility of the three-dimensional graphene are remarkably improved, the recombination of titanium dioxide photo-generated electron-hole pairs is effectively inhibited, the three-dimensional graphene provides a carrier for efficient transmission of titanium dioxide electrons, pollutants can be efficiently adsorbed, and the photocatalytic performance is further improved.

摘要：【中文】一种能实现工件固位多自由度一体化测量的新型装置，包括底箱、底板，底箱与底板之间设置有第一减震装置，底板上设置有平台运动传动机构、第二支架运动传递机构，第二支架运动传递机构上设置有第二减震器装置，第二减震器装置上设置有球连接底座，球连接底座通过球铰与悬臂支架连接，悬臂支架左端连接着第一支架运动传递机构，悬臂支架右端夹持着测量装置，平台运动传动机构上端设置有第三减震装置，第三减震装置上设置有测量平台，测量装置在测量平台上方。本发明实现了测量部分相对于测量平台的六自由度运动，设计了减震装置，相对传动精度高，测量的稳定性好。 【EN】The utility model provides a can realize that work piece maintenance multi freedom integration is measured novel device, including the under casing, the bottom plate, be provided with first damping device between under casing and the bottom plate, be provided with platform motion drive mechanism on the bottom plate, second support motion transmission mechanism, be provided with second bumper shock absorber device on the second support motion transmission mechanism, be provided with the ball on the second bumper shock absorber device and connect the base, the ball is connected the base and is connected with cantilever support through the ball pivot, first support motion transmission mechanism is being connected to the cantilever support left end, measuring device is being held to the cantilever support right-hand member, platform motion drive mechanism upper end is provided with third damping device, be provided with measuring platform on the third damping device, measuring device is in the measuring platform top. The invention realizes the six-degree-of-freedom motion of the measuring part relative to the measuring platform, designs the damping device, and has high relative transmission precision and good measuring stability.

摘要：【中文】本发明公开了一种低灰分低醇解度聚乙烯醇的制备方法，是通过添加单纯酯类化合物，替代原工艺中所需要添加的水，由于水含量的下降，醇解的副反应减少，醇解反应所需求的NaOH也相应减少，副产物乙酸钠也随之降低，最终达到降低成品聚乙烯醇中灰分的目的。本发明的方法可以广泛应用于不同聚合度、粘度的低醇解度聚乙烯醇的生产。 【EN】The invention discloses a preparation method of polyvinyl alcohol with low ash content and low alcoholysis degree, which is characterized in that a simple ester compound is added to replace water required to be added in the prior art, as the water content is reduced, the side reaction of alcoholysis is reduced, NaOH required by the alcoholysis reaction is correspondingly reduced, and the byproduct sodium acetate is reduced, thus finally achieving the purpose of reducing the ash content in the finished product polyvinyl alcohol. The method can be widely applied to the production of polyvinyl alcohol with low alcoholysis degree and different polymerization degrees and viscosities.

摘要：【中文】本发明实施例提供一种铁路客运车站要素全面感知处理系统及方法，该系统包括：由多个前端感知设备构成的车站级平台、路局级平台以及总公司级平台；车站级平台用于将前端感知设备获取的站内多方面数据源进行汇集，并发送至路局级平台；路局级平台用于对汇集的站内多方面数据源进行统计分析，获取实时状态信息及预处理结果，并发送至总公司级平台；总公司级平台用于根据实时状态信息及预处理结果生成控制指令，并分发至车站级平台及路局级平台。本发明实施例实现了全生产要素的智能化共享，解决了前端采集设备繁多但信息无法互联互通的缺陷，为各信息系统、智能终端等提供了有力的数据支撑，提高了车站的生产效率和客运组织的运营效率。 【EN】The embodiment of the invention provides a comprehensive perception processing system and a comprehensive perception processing method for railway passenger station elements, wherein the system comprises the following steps: a station level platform, a road bureau level platform and a head office level platform which are composed of a plurality of front-end sensing devices; the station-level platform is used for collecting the in-station multi-aspect data sources acquired by the front-end sensing equipment and sending the data sources to the road bureau-level platform; the road bureau level platform is used for carrying out statistical analysis on the collected data sources in various aspects in the station, acquiring real-time state information and a preprocessing result and sending the real-time state information and the preprocessing result to the head company level platform; and the head company level platform is used for generating a control instruction according to the real-time state information and the preprocessing result and distributing the control instruction to the station level platform and the road bureau level platform. The embodiment of the invention realizes the intelligent sharing of the full production elements, overcomes the defect that the front-end acquisition equipment is various but the information cannot be interconnected, provides powerful data support for various information systems, intelligent terminals and the like, and improves the production efficiency of stations and the operation efficiency of passenger transport organizations.