摘要：【中文】本发明涉及一种硅/碳复合材料及其制备方法，属于锂离子电池电极材料技术领域。该工艺是将二氧化硅原材料与金属镁反应后生成含有硅化镁的产物，再与碳酸盐反应获得产物经酸洗去除杂质和干燥后，即可制得硅/碳复合材料。本发明的优点在于其二氧化硅原材料来源丰富、工艺简单，便于规模化生产。该制备方法与传统镁热还原反应相比，更易获得小尺寸(<80nm)的硅纳米颗粒与碳的复合材料，作为锂离子电池负极材料表现出了优异的电化学性能，具有广泛的应用价值。 【EN】The invention relates to a silicon/carbon composite material and a preparation method thereof, belonging to the technical field of electrode materials of lithium ion batteries. The process comprises the steps of reacting silicon dioxide raw materials with metal magnesium to generate a product containing magnesium silicide, reacting with carbonate to obtain a product, removing impurities by acid washing, and drying to obtain the silicon/carbon composite material. The invention has the advantages of rich sources of silicon dioxide raw materials, simple process and convenient large-scale production. Compared with the traditional magnesiothermic reduction reaction, the preparation method is easier to obtain the composite material of the silicon nano-particles and carbon with small size (less than 80nm), shows excellent electrochemical performance as the cathode material of the lithium ion battery, and has wide application value.

摘要：【中文】本发明涉及一种低温冰箱，包括制冷机与储藏室，所述制冷机采用室温推移活塞脉管制冷机，所述室温推移活塞脉管制冷机包括用于产生冷量的冷量换热器，所述冷量换热器与吸热热管连接，所述吸热热管部分置于储藏室内，所述吸热热管用于将冷量换热器的冷量传输至储藏室内。从储藏室回来的蒸汽在冷量换热器中冷凝然后经出液管流出在吸热管中吸热后变为蒸汽，从而保持储藏室温度。与现有技术相比，本发明采用冷量换热器在上方，散热器在下的空间布置，并用热管传输热量，解决了热量传输问题，可以实现低温制冷。 【EN】The invention relates to a low-temperature refrigerator which comprises a refrigerator and a storage chamber, wherein the refrigerator adopts a room temperature push piston pulse tube refrigerator, the room temperature push piston pulse tube refrigerator comprises a cold quantity heat exchanger for generating cold quantity, the cold quantity heat exchanger is connected with a heat absorption heat pipe, the heat absorption heat pipe is partially arranged in the storage chamber, and the heat absorption heat pipe is used for transmitting the cold quantity of the cold quantity heat exchanger into the storage chamber. The steam returning from the storage chamber is condensed in the cold energy heat exchanger and then flows out through the liquid outlet pipe to absorb heat in the heat absorbing pipe to be changed into steam, so that the temperature of the storage chamber is kept. Compared with the prior art, the invention adopts the space arrangement of the cold energy heat exchanger above and the radiator below, and uses the heat pipe to transmit heat, thereby solving the problem of heat transmission and realizing low-temperature refrigeration.

摘要：【中文】本发明涉及一种基于光倍频的无腔内干扰的共振光通信装置，包括主机和从机，所述的主机包括逆反射调制模块以及由第一逆反射器和增益介质组成的共振光发射模块，所述的从机包括第二逆反射器，第一逆反射器与第二逆反射器之间的共振光路构成自由空间共振腔，所述的逆反射调制模块包括沿光路设置的第三后反射镜、光调制器、用以产生倍频光束的光倍频器以及第三透镜。与现有技术相比，本发明具有高速率共振光通信、可移动性、避免干扰等优点。 【EN】The invention relates to a resonant optical communication device based on optical frequency doubling and free of intracavity interference, which comprises a host machine and a slave machine, wherein the host machine comprises a retro-reflection modulation module and a resonant light emitting module consisting of a first retro-reflector and a gain medium, the slave machine comprises a second retro-reflector, a resonant light path between the first retro-reflector and the second retro-reflector forms a free space resonant cavity, and the retro-reflection modulation module comprises a third back reflector, an optical modulator, an optical frequency multiplier and a third lens, wherein the third back reflector, the optical modulator, the optical frequency multiplier and the third lens are arranged along the light path. Compared with the prior art, the invention has the advantages of high-speed resonant optical communication, mobility, interference avoidance and the like.

摘要：【中文】本发明涉及一种城轨交通地面储能选址方法、系统及装置，该方法包括如下步骤：(1)获取平峰时间段列车运行参数，包括运行列车数量及平均每辆列车运行周期；(2)分别计算每个站点的压阻数，所述的压阻数为全运营周期内所有列车运行至该站点时，该站点制动电阻开启次数与低电压发生次数之和；(3)根据平峰时间段列车运行参数确定压阻数阈值；(4)选取压阻数不小于压阻数阈值的站点为地面储能安装点。与现有技术相比，本发明可为城轨交通地面储能系统的快速、合理选址提供指导，且具有受工况及运营图的影响小，普适性好的特点。 【EN】The invention relates to a method, a system and a device for selecting an energy storage site on the ground of urban rail transit, wherein the method comprises the following steps: (1) obtaining train operation parameters in a peak-balancing time period, including the number of running trains and the average running period of each train; (2) respectively calculating the piezoresistive number of each station, wherein the piezoresistive number is the sum of the opening times of the braking resistor of the station and the occurrence times of low voltage when all trains in the full operation period run to the station; (3) determining a pressure resistance threshold value according to train operation parameters in a peak smoothing time period; (4) and selecting the station with the piezoresistive number not less than the piezoresistive number threshold value as a ground energy storage installation point. Compared with the prior art, the method can provide guidance for fast and reasonable site selection of the urban rail transit ground energy storage system, and has the characteristics of small influence of working conditions and operation diagrams and good universality.

摘要：【中文】本发明涉及一种基于轨迹数据的信号控制时段划分方法，包括以下步骤：步骤S1：基于交通波理论、格林希尔治线性模型和流密速三参数基本关系，得到集结波波速与流量的关系；步骤S2：叠加同一交叉口多日相同的时间段的轨迹数据，得到输入数据；步骤S3：基于输入数据、速度阈值划分方法和动力学方程，得到集结波波速；步骤S4：对集结波波速进行聚类，基于集结波波速与流量的关系，进行信号控制时段划分。与现有技术相比，不仅提升了信号控制交叉口的运行效率和安全水平，也节约了固定检测器的安装和维修成本。 【EN】The invention relates to a signal control time interval dividing method based on track data, which comprises the following steps: step S1: obtaining the relation between the aggregate wave velocity and the flow rate based on the basic relation among three parameters of a traffic wave theory, a Green Sierra linear model and the flow density velocity; step S2: superposing track data of the same intersection in the same time period for multiple days to obtain input data; step S3: obtaining an aggregate wave velocity based on input data, a velocity threshold partitioning method and a kinetic equation; step S4: clustering the wave velocity of the aggregate wave, and dividing the signal control time period based on the relation between the wave velocity of the aggregate wave and the flow. Compared with the prior art, the signal control intersection has the advantages that the operating efficiency and the safety level of the signal control intersection are improved, and the installation and maintenance cost of the fixed detector is saved.

摘要：【中文】本发明涉及一种头箍式脑功能成像仪，该成像仪包括：圆形耳壳：设有两个且固定在双耳外；带状测量臂：为长条形柔性曲面带并贴合颅骨设置，并且在与颅骨接触的下表面沿臂长方向设有带状光发射及透光模块和带状超声相控阵发射及接收模块；连接带：为可伸缩式的弹性连接带，通过调节长度用以适应不同被试者头部颅骨外围，其一端与圆形耳壳连接，另一端与带状测量臂连接；主机：用以驱动发射激光和超声信号，并接收产生的光声信号和反射回的超声信号进行成像。与现有技术相比，本发明可固定于头部，不影响被试者自由移动，减轻其心理负担，可用于脑部神经网络活动的检测与成像等优点。 【EN】The invention relates to a head band type brain function imager, which comprises: a circular earshell: two are arranged and fixed outside the double ears; a strip-shaped measuring arm: the flexible curved belt is a strip-shaped flexible curved belt and is attached to the skull, and a strip-shaped light emitting and transmitting module and a strip-shaped ultrasonic phased array emitting and receiving module are arranged on the lower surface, which is in contact with the skull, along the arm length direction; connecting a belt: the measuring instrument is a telescopic elastic connecting belt, is used for adapting to the peripheries of head craniums of different testees by adjusting the length, and has one end connected with the circular earmuff and the other end connected with the belt-shaped measuring arm; a host computer: the device is used for driving and transmitting laser and ultrasonic signals, and receiving the generated photoacoustic signals and the reflected ultrasonic signals for imaging. Compared with the prior art, the invention can be fixed on the head, does not influence the free movement of a testee, reduces the psychological burden of the testee, and can be used for the detection and imaging of brain neural network activities.

摘要：【中文】本发明涉及一种基于检测反馈控制的共振波束通信装置，该装置包括共同构成自由空间共振腔的主机和从机，所述的从机内设有第二逆反射器所述的主机包括第一逆反射器、功率放大器和信号处理模组，所述的信号处理模组包括依次连接的分束器、探测器、信号处理器和调制器，所述的第一逆反射器、功率放大器、分束器和调制器依次沿共振波束路径设置，所述的探测器接收分束器从主机和从机之间共振波束中按设定比例分出的样本光束并输出电信号，信号处理器接收探测器输出的电信号以及携带信息的输入信号向调制器发送控制信号。与现有技术相比，本发明具有超高速率通信、可移动性和安全性高等优点。 【EN】The invention relates to a resonance wave beam communication device based on detection feedback control, which comprises a host machine and a slave machine which jointly form a free space resonant cavity, wherein a second retro-reflector is arranged in the slave machine, the host machine comprises a first retro-reflector, a power amplifier and a signal processing module, the signal processing module comprises a beam splitter, a detector, a signal processor and a modulator which are sequentially connected, the first retro-reflector, the power amplifier, the beam splitter and the modulator are sequentially arranged along a resonance wave beam path, the detector receives a sample light beam which is split by the beam splitter according to a set proportion from the resonance wave beam between the host machine and the slave machine and outputs an electric signal, and the signal processor receives the electric signal output by the detector and an input signal carrying information and sends a control signal to the modulator. Compared with the prior art, the invention has the advantages of ultrahigh-speed communication, mobility, high safety and the like.

摘要：【中文】本发明涉及一种分段式隐蔽型埋地管道阴极保护状态监测预警系统及方法，该系统包括监控管理中心、标准桩和太阳能发电装置，监控管理中心包括云服务终端和与其通信连接的远程控制终端以及手机APP和计算机，其中，标准桩和太阳能发电装置相互连接且分段设置于地平面上下两部分，标准桩包括相互连接的标准管段和标准柱，标准柱包括标准柱固定式机构和标准柱移动机构，准柱固定式机构上设有电动机，电动机的主轴通过齿轮与设置于标准柱移动机构上的齿条啮合连接。标准管段实现埋地管道阴极保护的分段监测，减低管道内不同管段干扰、减弱了管道腐蚀。与现有技术相比，本发明具有安全高效分段式获取埋地管道阴极保护状态参数，且能及时监测预警的优点。 【EN】The invention relates to a sectional type hidden buried pipeline cathode protection state monitoring and early warning system and a method, the system comprises a monitoring management center, a standard pile and a solar power generation device, the monitoring management center comprises a cloud service terminal, a remote control terminal in communication connection with the cloud service terminal, a mobile phone APP and a computer, wherein the standard pile and the solar power generation device are connected with each other and are arranged on the upper part and the lower part of a ground plane in a sectional mode, the standard pile comprises a standard pipe section and a standard column which are connected with each other, the standard column comprises a standard column fixing mechanism and a standard column moving mechanism, a motor is arranged on the standard column fixing mechanism, and a main shaft of the motor is meshed with a rack arranged on the standard column moving mechanism through a gear. The standard pipe section realizes the subsection monitoring of the cathode protection of the buried pipeline, reduces the interference of different pipe sections in the pipeline and weakens the corrosion of the pipeline. Compared with the prior art, the method has the advantages of obtaining the cathode protection state parameters of the buried pipeline safely, efficiently and in a sectional manner, and monitoring and early warning in time.

摘要：【中文】本发明提供一种非金属‑硫二次电池，包括：正极、非金属负极、液态电解质以及用于隔离正极与非金属负极的绝缘隔膜，其中，正极的活性物质为单质硫、硫化锂、硫化钠、硫化镁、硫化铝中的一种或多种的混合物，非金属负极的活性物质为石墨、硅、软碳、硬碳中的一种或多种的混合物，液态电解质由载流子盐、活性溶剂以及惰性溶剂组成，绝缘隔膜为自聚乙烯、聚丙烯、聚丙烯/聚乙烯/聚丙烯、无纺布、玻璃纤维中的一种或多种的混合物。由于采用价格低廉且能量密度高的硫正极，阻燃性能好且多硫化物溶解度低的电解液以及循环稳定性好的非金属负极，本发明提供的非金属‑硫二次电池具有高安全，低成本，高循环稳定性的优点且能量密度和锂离子电池相当。 【EN】The present invention provides a non-metal-sulfur secondary battery comprising: the positive electrode is an active substance of the positive electrode is a mixture of one or more of elemental sulfur, lithium sulfide, sodium sulfide, magnesium sulfide and aluminum sulfide, the active substance of the non-metal negative electrode is a mixture of one or more of graphite, silicon, soft carbon and hard carbon, the liquid electrolyte is composed of a carrier salt, an active solvent and an inert solvent, and the insulating diaphragm is a mixture of one or more of polyethylene, polypropylene/polyethylene/polypropylene, non-woven fabric and glass fiber. The nonmetal-sulfur secondary battery provided by the invention has the advantages of high safety, low cost and high cycling stability, and the energy density is equivalent to that of a lithium ion battery.

摘要：【中文】本发明涉及一种用于室内煤场的无人机定位导航方法，包括：步骤S1：建立UWB局部坐标系；步骤S2：建立状态空间方程，将UWB数据与惯性测量单元数据加入优化方程，通过卡尔曼滤波算法进行数据融合，计算出基本信息；步骤S3：检测卫星信号，若存在则将卫星信号转换为局部坐标进行滤波处理，与UWB的位置信息融合获得融合位置坐标；步骤S4：采集图像数据建立先验地图，结合融合位置坐标，使用ICP算法进行重定位，采用ORB‑SLAM算法实现导航地图的维护与更新；步骤S5：根据输出的置信度矩阵，与置信度阈值进行比较，若满足则输出导航地图中的具体坐标，否则输出融合位置坐标。与现有技术相比，本发明具有结合多种定位数据，保障导航方法精确性与稳定性等优点。 【EN】The invention relates to an unmanned aerial vehicle positioning and navigation method for an indoor coal yard, which comprises the following steps: step S1: establishing a UWB local coordinate system; step S2: establishing a state space equation, adding UWB data and inertial measurement unit data into an optimization equation, performing data fusion through a Kalman filtering algorithm, and calculating basic information; step S3: detecting satellite signals, converting the satellite signals into local coordinates to perform filtering processing if the satellite signals exist, and fusing the local coordinates with UWB position information to obtain fused position coordinates; step S4: acquiring image data to establish a prior map, combining with the fusion position coordinates, using an ICP algorithm to perform relocation, and using an ORB-SLAM algorithm to realize maintenance and update of a navigation map; step S5: and comparing the output confidence matrix with a confidence threshold, if so, outputting specific coordinates in the navigation map, and otherwise, outputting the coordinates of the fusion position. Compared with the prior art, the method has the advantages of combining various positioning data, guaranteeing the accuracy and stability of the navigation method and the like.