摘要：【中文】本发明公开了一种二甲双胍缓释tHA/PCL引导组织再生膜及其制备方法，二甲双胍缓释tHA/PCL引导组织再生膜包括tHA/PCL复合纳米纤维膜和含有二甲双胍的CMC/PLL涂层，其制备方法：1)制备tHA；2)通过静电纺丝技术制备出tHA/PCL复合纳米纤维膜；3)利用静电吸附层层自组装技术，在tHA/PCL复合纳米纤维膜的表面制备含有二甲双胍的CMC/PLL涂层；4)采用生物交联剂京尼平对CMC/PLL涂层进行化学交联。本发明利用二甲双胍对纳米颗粒tHA的细胞毒性作用的调控作用，改善了tHA/PCL复合纤维材料的生物相容性和成骨活性，能促进牙周组织的修复再生。 【EN】The invention discloses a metformin sustained-release tHA/PCL guided tissue regeneration film and a preparation method thereof, wherein the metformin sustained-release tHA/PCL guided tissue regeneration film comprises a tHA/PCL composite nanofiber film and a CMC/PLL coating containing metformin, and the preparation method comprises the following steps: 1) preparation tHA; 2) preparing an tHA/PCL composite nanofiber membrane by an electrostatic spinning technology; 3) preparing a CMC/PLL coating containing metformin on the surface of the tHA/PCL composite nanofiber membrane by utilizing a static adsorption layer-by-layer self-assembly technology; 4) and chemically crosslinking the CMC/PLL coating by using a biological crosslinking agent genipin. The invention utilizes the regulation and control effect of metformin on the cytotoxicity of the nano-particles tHA, improves the biocompatibility and osteogenesis activity of the tHA/PCL composite fiber material, and can promote the repair and regeneration of periodontal tissues.

摘要：【中文】本发明属于气体提纯领域，具体涉及一种分离提纯氪和氙的方法及装置，在常温或者低温条件下，将氪氙浓缩物原料气加入惰性气体中形成混合气，通过精馏塔连续精馏，利用碳氢化合物、氟化物、氪和氙各自的沸点不同，依次分离原料中所含杂质，得到纯氪和纯氙产品。本发明将惰性气体加入至氪氙浓缩物中形成混合气体，避免在精馏的过程中，碳氢化合物与氧聚集发生爆炸的危险，提高工艺安全性。 【EN】The invention belongs to the field of gas purification, and particularly relates to a method and a device for separating and purifying krypton and xenon. According to the invention, the inert gas is added into the krypton-xenon concentrate to form the mixed gas, so that the risk of explosion caused by aggregation of hydrocarbon and oxygen in the rectification process is avoided, and the process safety is improved.

摘要：【中文】一种混凝土受冻程度检测装置及其检测方法。目前混凝土受冻程度检测受构件尺寸影响、难度大、效率低、准确度差而导致土木工程建设质量控制难以保证。本发明中定位架内竖直并列设置有第一固定板和第二固定板，第一固定板和第二固定板均为柔性部和硬质部交替形成的板体，多个测量探头从上至下依次设置在第一固定板和第二固定板之间，每个测量探头分别与第一固定板的硬质部和第二固定板的硬质部相连接，每个测量探头包括套管、底片和位移传感器，套管内设置有底片，底片上设置有位移传感器。 【EN】A concrete freezing degree detection device and a detection method thereof are provided. At present, the detection of the frozen degree of concrete is influenced by the size of a component, and has high difficulty, low efficiency and poor accuracy, so that the quality control of civil engineering construction is difficult to ensure. A first fixing plate and a second fixing plate are vertically arranged in parallel in a positioning frame, the first fixing plate and the second fixing plate are plate bodies formed by alternately forming a flexible portion and a hard portion, a plurality of measuring probes are sequentially arranged between the first fixing plate and the second fixing plate from top to bottom, each measuring probe is respectively connected with the hard portion of the first fixing plate and the hard portion of the second fixing plate, each measuring probe comprises a sleeve, a bottom plate and a displacement sensor, the bottom plate is arranged in the sleeve, and the displacement sensor is arranged on the bottom plate.

摘要：【中文】本发明公开了一种轨道车辆空调机组的低压保护方法，属于轨道车辆空调设备技术领域，基于具有低压压力保护开关和低压压力传感器或蒸发温度传感器的轨道车辆空调机组，包括压力降载进入步骤和压力降载退出步骤，压力降载进入步骤包括：实时检测低压压力或者蒸发温度，如果检测到低压压力LP≤LP1或者蒸发温度T≤T1且持续时间t1时打开旁通电磁阀；压力降载退出步骤包括：如果检测到低压压力LP≥LP2或者蒸发温度T≥T2且持续时间t2，同时旁通电磁阀已开启不少于3分钟，则允许关闭旁通电磁阀。本发明通过结合软硬件，通过卸载启动自动控制和压力降载自动控制，将空调系统的低压保护措施提前到发生低压故障前，可显著降低系统低压保护的故障率。 【EN】The invention discloses a low-voltage protection method of a rail vehicle air conditioning unit, which belongs to the technical field of rail vehicle air conditioning equipment, and is based on the rail vehicle air conditioning unit with a low-voltage pressure protection switch and a low-voltage pressure sensor or an evaporation temperature sensor, and comprises a pressure load reduction entering step and a pressure load reduction exiting step, wherein the pressure load reduction entering step comprises the following steps: detecting the low pressure or the evaporation temperature in real time, and opening the bypass electromagnetic valve if the low pressure LP is detected to be less than or equal to LP1 or the evaporation temperature T is detected to be less than or equal to T1 and the duration time T1; the pressure load reduction exiting step comprises the following steps: if the low pressure LP ≧ LP2 or the vaporization temperature T ≧ T2 is detected for a duration T2 while the bypass solenoid valve has been open for no less than 3 minutes, then the bypass solenoid valve is allowed to close. The invention can remarkably reduce the fault rate of low-voltage protection of the system by combining software and hardware, and advancing the low-voltage protection measures of the air conditioning system to the front of low-voltage faults through automatic control of unloading start and automatic control of pressure load reduction.

摘要：【中文】本申请公开一种主动悬挂机构、包括上述主动悬挂机构的AGV小车及一种AGV小车控制方法，其中，主动悬挂机构包括固定底盘、下压装置；固定底盘的一端用于与AGV小车的舵轮连接，另一端用于与AGV小车的弹簧减震器连接；下压装置包括检测件、控制件、驱动装置、下压件；检测件与控制件电性连接，检测件用于检测路况并将路况信息输入到控制件；控制件，还与驱动装置电性连接，用于根据路况信息发送驱动信号驱动装置；驱动装置通过下压件与固定底盘相抵，驱动装置用于根据驱动信号驱动下压件挤压固定底盘。本申请能够根据路段特征调节AGV小车的弹簧减震器的刚度与阻力，进而使得AGV小车更加平稳的行驶。 【EN】The application discloses an active suspension mechanism, an AGV comprising the active suspension mechanism and an AGV control method, wherein the active suspension mechanism comprises a fixed chassis and a pressing device; one end of the fixed chassis is used for being connected with a steering wheel of the AGV, and the other end of the fixed chassis is used for being connected with a spring shock absorber of the AGV; the pressing device comprises a detection piece, a control piece, a driving device and a pressing piece; the detection piece is electrically connected with the control piece and is used for detecting the road condition and inputting the road condition information to the control piece; the control element is also electrically connected with the driving device and used for sending a driving signal to the driving device according to the road condition information; the driving device is abutted against the fixed chassis through the lower pressing piece and used for driving the lower pressing piece to extrude the fixed chassis according to the driving signal. According to the method and the device, the rigidity and the resistance of the spring damper of the AGV trolley can be adjusted according to the characteristics of the road sections, and therefore the AGV trolley can run more stably.

摘要：【中文】一种钢结构装配式外墙ALC墙板柔性连接方法，属于外墙板安装加固连接方法技术领域。步骤为：外墙ALC墙板加工生产时在上、下两端中心部位预埋带横向滑槽的镀锌钢板锚板；外墙ALC墙板安装到指定位置后，外墙ALC墙板上端用带纵向滑槽的角钢连接件与钢梁进行焊接；外墙ALC墙板下端用带纵向滑槽的角钢连接件与楼板内预埋的埋件进行焊接；外墙ALC墙板上、下端用螺栓帽滑入墙板内预埋的带横向滑槽的镀锌钢板锚板滑槽内将墙板内预埋的带横向滑槽的镀锌钢板锚板与外部带纵向滑槽的角钢连接件进行加固；外墙ALC墙板安装完成，优点在于：安装外墙板的全部过程均在室内进行，省时、省力、安全、便捷、高效；柔性连接方法抗震性能优越。 【EN】A flexible connection method for steel structure assembled exterior wall ALC (autoclaved lightweight concrete) wallboards belongs to the technical field of installation, reinforcement and connection methods for exterior wallboards. The method comprises the following steps: when the ALC wallboard of the outer wall is processed and produced, a galvanized steel plate anchor plate with a transverse sliding chute is pre-embedded in the central parts of the upper end and the lower end; after the outer wall ALC wallboard is installed at the designated position, the upper end of the outer wall ALC wallboard is welded with the steel beam by using an angle steel connecting piece with a longitudinal sliding groove; the lower end of the ALC wallboard of the outer wall is welded with an embedded part embedded in the floor slab by using an angle steel connecting piece with a longitudinal sliding chute; the upper end and the lower end of an ALC wallboard of the outer wall are slid into a galvanized steel plate anchor plate sliding groove with a transverse sliding groove and pre-embedded in the wallboard by using bolt caps, and the galvanized steel plate anchor plate with the transverse sliding groove and pre-embedded in the wallboard is reinforced with an angle steel connecting piece with a longitudinal sliding groove on the outer part; the installation of outer wall ALC wallboard is accomplished, and the advantage lies in: the whole process of installing the external wall panel is carried out indoors, so that the time, the labor and the safety are saved, and the installation is convenient, fast and efficient; the flexible connection method has excellent anti-seismic performance.

摘要：【中文】一种利用吊线找正管井立管安装的方法，属于室内管井立管安装技术领域。按室内管井的截面尺寸加工钢托板，在钢托板开设圆孔，每个圆孔上加设一根吊线；将带吊线的钢托板放置在管井最顶部，并将第一根立管按照设计要求与管井底部水平管接口，然后释放吊线，同时调整第一根立管的垂直度，当下垂吊线的吊坠达到第一根立管顶部端口中心位置时，然后对安装的第一根立管与底部水平管接口进行焊接固定；第一根立管固定完毕后，采用同样的方法在管井内安装第二根立管；当室内管井内的第一层立管安装完毕后，再利用同样的方法安装管井一层以上的立管，直至室内管井内的立管全部安装完毕。优点在于，减少了累积误差，避免了安装返工处理；节省了人力、物力，缩短了安装时间，降低了施工成本。 【EN】A method for aligning the installation of a vertical pipe of a pipe well by using a suspension wire belongs to the technical field of the installation of indoor vertical pipes of pipe wells. Processing a steel supporting plate according to the section size of the indoor pipe well, forming round holes in the steel supporting plate, and adding a suspension wire on each round hole; placing a steel supporting plate with a suspension wire at the topmost part of a pipe well, connecting a first vertical pipe with a horizontal pipe at the bottom of the pipe well according to design requirements, then releasing the suspension wire, adjusting the verticality of the first vertical pipe at the same time, and welding and fixing the installed first vertical pipe with a horizontal pipe at the bottom when a pendant of the hanging wire which hangs down reaches the central position of a top port of the first vertical pipe; after the first vertical pipe is fixed, a second vertical pipe is installed in the pipe well by the same method; and after the first layer of vertical pipes in the indoor pipe well are installed, installing more than one layer of vertical pipes in the pipe well by using the same method until all the vertical pipes in the indoor pipe well are installed. The method has the advantages that the accumulated error is reduced, and the installation rework treatment is avoided; the manpower and material resources are saved, the installation time is shortened, and the construction cost is reduced.

摘要：【中文】本发明的是一种自带位置校准功能的自由装填药柱装配工装，该发明适用于固体火箭发动机药柱的自由装填工艺。该工装由药柱支架、定位套、内六角圆柱头螺钉及定位销组成，药柱支架的凸台与定位套的凹槽形成间隙配合关系，其能够准确地保证药柱组合件与发动机壳体上的销孔相互对应，避免了后续过程中药柱组合件的大角度转动调整，药柱装配的效率得以大幅度提升。 【EN】The invention relates to a free-filling grain assembly tool with a position calibration function, which is suitable for a free filling process of a solid rocket engine grain. This frock comprises powder column support, position sleeve, hexagon socket head cap screw and locating pin, and the boss of powder column support forms clearance fit relation with the recess of position sleeve, and it can guarantee accurately that the pinhole on powder column sub-assembly and the engine housing corresponds each other, has avoided the wide-angle rotation adjustment of follow-up in-process powder column sub-assembly, and the efficiency of powder column assembly can promote by a wide margin.

摘要：【中文】本发明涉及一种飞机壁板类蒙皮的制孔装置，属于结构设计技术领域。一种飞机壁板精确制孔装置，包括导轨基体、钻套基体和定位机构；在导轨基体上设置有导轨、制孔槽，导轨设置于导轨基体的上表面，且沿导轨基体的中心线设置，制孔槽贯穿导轨与导轨基体底面，二者轴向一致，导轨基体底面与飞机壁板类蒙皮匹配；钻套基体上设置有钻套、钻套孔，钻套安装于导轨内，且可沿着导轨滑动，钻套孔贯穿钻套轴心，与制孔槽贯通；定位机构用于将钻套基体固定在导轨基体上。本发明具有如下优点：1、可用范围广；2、重复利用率高；3、互换性好；4、柔性强；5、提高了制孔精度，可以节约大型专用设备制造成本，有效降低新研产品研制成本。 【EN】The invention relates to a hole making device for an aircraft panel skin, and belongs to the technical field of structural design. An accurate hole making device for an aircraft panel comprises a guide rail base body, a drill bushing base body and a positioning mechanism; the guide rail base body is provided with a guide rail and a hole making groove, the guide rail is arranged on the upper surface of the guide rail base body and is arranged along the central line of the guide rail base body, the hole making groove penetrates through the bottom surfaces of the guide rail and the guide rail base body, the bottom surfaces of the guide rail base body and the guide rail base body are axially consistent, and the bottom surface of the guide rail base body is matched with an aircraft wallboard skin; the drill bush base body is provided with a drill bush and a drill bush hole, the drill bush is arranged in the guide rail and can slide along the guide rail, and the drill bush hole penetrates through the axis of the drill bush and is communicated with the hole making groove; the positioning mechanism is used for fixing the drill bushing base body on the guide rail base body. The invention has the following advantages: 1. the available range is wide; 2. the repeated utilization rate is high; 3. the interchangeability is good; 4. the flexibility is strong; 5. the hole making precision is improved, the manufacturing cost of large-scale special equipment can be saved, and the development cost of newly-ground products is effectively reduced.

摘要：【中文】本发明涉及一种大直径螺纹单次走刀快速车削加工刀具及方法，适用于直径大于50mm无退刀槽内螺纹或者外螺纹，该加工刀具由M个刀片串联组合而成，刀片的径向长度依次递增，相邻两个刀片之间刀片径向长度之差等于进刀尺寸，M大于1。该加工方法采用上述加工刀具，根据被加工螺纹情况，可跨螺距加工。本发明在在保证效率的情况下，提高了刀具的利用率。 【EN】The invention relates to a large-diameter thread single-feed rapid turning tool and a method, which are suitable for internal threads or external threads with the diameter larger than 50mm and without a tool withdrawal groove, the tool is formed by combining M blades in series, the radial lengths of the blades are sequentially increased, the difference of the radial lengths of the blades between every two adjacent blades is equal to the feed size, and M is larger than 1. The machining method adopts the machining cutter, and can machine across thread pitches according to the condition of the machined threads. The invention improves the utilization rate of the cutter under the condition of ensuring the efficiency.