摘要：【中文】本发明公开了一种从铂钨合金回收提纯铂的方法，采用物理破碎工艺和湿法回收提纯工艺，实现了铂钨合金的快速回收提纯，缩短回收提纯周期，获得海绵铂。所述物理破碎工艺将铂钨合金破碎至50‑100目，所述海绵铂的纯度大于99.9％，回收提纯率大于98％。 【EN】The invention discloses a method for recovering and purifying platinum from platinum-tungsten alloy, which adopts a physical crushing process and a wet recovery and purification process to realize rapid recovery and purification of platinum-tungsten alloy, shortens the recovery and purification period and obtains spongy platinum. The physical crushing process crushes the platinum-tungsten alloy into 50-100 meshes, the purity of the spongy platinum is more than 99.9%, and the recovery and purification rate is more than 98%.

摘要：【中文】本发明涉及一种固体火箭发动机试验方法，尤其涉及一种大型固体火箭滚转过程加速其药柱和粘接界面的监测试验方法。其技术方案是一种固体火箭发动机滚转贮存过程加速方法，其特征是：使固体火箭发动机滚转贮存时增加一定的离心加速度；并设计了一种可用于一种固体火箭发动机滚转贮存过程加速试验的装置，加速固体火箭发动机滚转贮存时的蠕变、产生径向拉应力，从而加速推进剂与绝热层界面脱粘的速度。本发明具有加速速度快、检测精度高的特点，可以为发动机滚转周期研究和优化提供技术支撑。 【EN】The invention relates to a test method of a solid rocket engine, in particular to a monitoring test method for accelerating the grain and bonding interface of a large solid rocket in a rolling process. The technical scheme is that the method for accelerating the rolling storage process of the solid rocket engine is characterized in that: the centrifugal acceleration is increased to a certain extent when the solid rocket engine is stored in a rolling way; and a device for an acceleration test in the rolling storage process of the solid rocket engine is designed, so that the creep deformation and the radial tensile stress generated in the rolling storage process of the solid rocket engine are accelerated, and the debonding speed of the interface of the propellant and the heat insulating layer is accelerated. The invention has the characteristics of high acceleration speed and high detection precision, and can provide technical support for the research and optimization of the roll period of the engine.

摘要：【中文】本发明属于固体推进剂加速老化方法技术领域，特别涉及一种用于材料加速老化的梯度温度载荷加载装置及方法。一种用于材料加速老化的梯度温度载荷加载装置，基于梯度温度场原理，包括本体，本体包括热源一、热源二、导热金属一、导热金属二、试样、隔热涂层、温度传感器；导热金属一和导热金属二并排设置，试样设置于导热金属一和导热金属二之间，热源一和热源二分别设置于导热金属一和导热金属二的两端；隔热涂层设于本体的外表面。本发明克服了现有恒温加速老化试验的不足，提供了一种梯度温度加载装置和方法，实现单次试验获得多个温度条件下的老化样品，大幅度提高加速老化试验的效率，降低材料高温加速老化占用的试验资源量。 【EN】The invention belongs to the technical field of accelerated aging methods of solid propellants, and particularly relates to a gradient temperature load loading device and method for accelerated aging of materials. A gradient temperature load loading device for accelerated aging of materials is based on the gradient temperature field principle and comprises a body, wherein the body comprises a heat source I, a heat source II, a heat conducting metal I, a heat conducting metal II, a sample, a heat insulation coating and a temperature sensor; the first heat conducting metal and the second heat conducting metal are arranged side by side, the sample is arranged between the first heat conducting metal and the second heat conducting metal, and the first heat source and the second heat source are respectively arranged at two ends of the first heat conducting metal and the second heat conducting metal; the thermal barrier coating is arranged on the outer surface of the body. The invention overcomes the defects of the existing constant-temperature accelerated aging test, and provides a gradient temperature loading device and a gradient temperature loading method, so that aging samples under multiple temperature conditions can be obtained in a single test, the efficiency of the accelerated aging test is greatly improved, and the test resource amount occupied by the high-temperature accelerated aging of materials is reduced.

摘要：【中文】本发明涉及一种斜向深孔传感器精确定位装置及方法，属于测量器材技术领域。该装置包括操作盘、角度刻度盘、测量绳角度尺、测量绳、铅锤、支架、稳定底盘、铅锤拴绳、距离测量滑轮、测量绳限位滑轮和测量绳储存箱；通过角度刻度盘、测量绳角度尺和单片机计算出测量绳角度尺的角度，通过测量绳、距离测量滑轮和单片机计算出传感器下放斜向深孔的距离；通过单片机计算出传感器距离被测原点的水平距离a和垂直距离c，控制测量绳的下放速率将传感器下放至预设位置。本发明在斜向深测量孔定位传感器时，操作简单，减少工作量，具有结构简单、成本低、易操作、可重复使用、适用性强的特点。 【EN】The invention relates to an accurate positioning device and method for an inclined deep hole sensor, and belongs to the technical field of measuring equipment. The device comprises an operating panel, an angle dial, a measuring rope angle ruler, a measuring rope, a plumb bob, a bracket, a stable chassis, a plumb bob tether rope, a distance measuring pulley, a measuring rope limiting pulley and a measuring rope storage box; the angle of the measuring rope angle ruler is calculated through the angle dial, the measuring rope angle ruler and the single chip microcomputer, and the distance of the sensor for lowering the inclined deep hole is calculated through the measuring rope, the distance measuring pulley and the single chip microcomputer; and calculating the horizontal distance a and the vertical distance c between the sensor and the measured original point through the single chip microcomputer, and controlling the lowering speed of the measuring rope to lower the sensor to a preset position. When the sensor is positioned by the oblique deep measuring hole, the invention has the characteristics of simple operation, reduced workload, simple structure, low cost, easy operation, repeated use and strong applicability.

摘要：【中文】公开了一种对三维(3D)NAND存储器件执行编程操作的方法。该方法使得能够去除在预充电阶段期间在3D NAND存储器件的未选定串的中间虚设存储单元的储存区域中俘获的残余电子，从而减小对与未选定串相邻的选定串的编程干扰。 【EN】A method of performing a program operation on a three-dimensional (3D) NAND memory device is disclosed. The method enables removal of residual electrons trapped in storage areas of intermediate dummy memory cells of unselected strings of the 3D NAND memory device during a precharge phase, thereby reducing program disturb on selected strings adjacent to the unselected strings.

摘要：【中文】本发明公开了属于铂电极制备技术领域的一种铂电极浆料及其制备方法和应用。以重量百分数计，铂电极浆料包括：15～20％纳米铂粉、5～10％片状铂粉、50～60％热处理后的超细铂粉和10～30％有机粘结剂。本发明提供的铂电极浆料高温烧结于氮化硅基片上得到铂电极，所述铂电极浆料在氮化硅基片上高温烧结不起泡、不翘曲、电极不宜脱落，与氮化硅基片附着力大于20N/mm²，铂电极的方阻值小于25mΩ/□，长时间在高温环境下使用电极性能稳定，阻值变化很小；导电性好、电信号传输能力高。 【EN】The invention discloses platinum electrode slurry and a preparation method and application thereof, belonging to the technical field of platinum electrode preparation. The platinum electrode slurry comprises the following components in percentage by weight: 15-20% of nano platinum powder, 5-10% of flaky platinum powder, 50-60% of heat-treated superfine platinum powder and 10-30% of organic binder. The platinum electrode slurry provided by the invention is sintered on a silicon nitride substrate at a high temperature to obtain a platinum electrode, the platinum electrode slurry is not foamed or warped when being sintered on the silicon nitride substrate at a high temperature, the electrode is not easy to fall off, and the adhesive force with the silicon nitride substrate is more than 20N/mm²The sheet resistance value of the platinum electrode is less than 25m omega/□, the electrode has stable performance and small resistance change when used in a high-temperature environment for a long time; good conductivity and high electric signal transmission capacity.

摘要：【中文】本发明涉及桥梁施工领域，具体涉及了一种钢箱梁对接检测组件，其定位支架和光斑发射装置均设在第一钢箱梁，调节机构和光斑接收装置均设在第二钢箱梁，顶推装置用于配合定位支架以对两个钢箱梁的相对位置进行微调，光斑发射装置可射出两条交叉的射线，光斑接收装置根据上述射线产生的光斑检测两个钢箱梁之间的距离，光斑发射装置还可通过上述射线检测出两个钢箱梁在水平面上的夹角，吊运设备的操作人员可根据光斑接收装置和光斑发射装置检测的数据操作吊运设备和顶推装置，即在钢箱梁对接阶段可无需依靠安全员或指挥员的人工观测，操作人员可直观且实时地获知钢箱梁的姿态，以便快速地进行姿态调节，这有利于突破现有的吊装精度和吊装速度。 【EN】The invention relates to the field of bridge construction, in particular to a steel box girder butt joint detection assembly, wherein a positioning support and a light spot emitting device are arranged on a first steel box girder, an adjusting mechanism and a light spot receiving device are arranged on a second steel box girder, a pushing device is used for matching with the positioning support to finely adjust the relative positions of the two steel box girders, the light spot emitting device can emit two crossed rays, the light spot receiving device detects the distance between the two steel box girders according to the light spots generated by the rays, the light spot emitting device can also detect the included angle of the two steel box girders on the horizontal plane through the rays, an operator of a lifting device can operate the lifting device and the pushing device according to the data detected by the light spot receiving device and the light spot emitting device, namely, the manual observation of a safety staff or a commander is not needed in the butt joint stage of the steel box girders, and the operator can intuitively know the posture of the steel box girders in real time, so as to rapidly adjust the posture, which is beneficial to breaking through the existing hoisting precision and hoisting speed.

摘要：【中文】本发明提供一种无源多站多目标测向交叉定位与虚假点去除方法，包括如下步骤：步骤一、根据双站测向交叉定位原理，得出两两站点的双站交叉定位结果，给出交叉定位点集合；步骤二、根据真实目标附近交叉定位点密度明显高于虚假点这一特性，利用马氏距离定义椭圆邻域，提取高密度交叉定位点；步骤三、对高密度点集合进行DBSCAN聚类处理，取高密度点数最多的前NT个聚类作为真实目标所在的簇，每一簇的聚类中心即为真实目标位置，NT为目标个数。本发明利用一种高密度点提取方法，在保证目标点定位精度与虚假点去除性能的同时，降低了后续聚类数据处理的计算量。 【EN】The invention provides a passive multi-station multi-target direction-finding cross positioning and false point removing method, which comprises the following steps: step one, according to a double-station direction-finding cross positioning principle, obtaining double-station cross positioning results of every two stations, and giving a cross positioning point set; secondly, defining an ellipse neighborhood by using the Mahalanobis distance according to the characteristic that the density of the cross positioning points near the real target is obviously higher than that of the false points, and extracting high-density cross positioning points; step three, carrying out DBSCAN clustering processing on the high-density point set, taking the first NT clusters with the most high-density points as clusters where real targets are located, wherein the clustering center of each cluster is the real target position, and NT is the number of the targets. The invention utilizes a high-density point extraction method, and reduces the calculation amount of subsequent clustering data processing while ensuring the positioning precision of the target point and the false point removal performance.

摘要：【中文】本发明公开了信道状态信息的通道不一致性误差校正测向方法，属于室内定位技术领域。实现步骤如下：对CSI测向算法进行建模；利用单天线数据计算直达波飞行时间ToF；成对天线间CSI数据平滑处理增加接收阵列孔径；利用直达波飞行时间ToF和直达波入射角度先验信息进行成对天线间幅相误差计算；根据离线数据建立不同来波方向情况下幅相误差表格，在线过程中对照表格动态选取Γ值，进行通道幅相误差校正和迭代测向。本发明解决了商用Wi‑Fi网卡复杂的通道间幅相误差校正问题，保证了Wi‑Fi网卡CSI测向的精度，有效降低基于商用Wi‑Fi网卡的室内定位系统部署使用的复杂度和成本，应用前景广阔，而且操作简单、不需要专用设备、能有效适应室内多径环境。 【EN】The invention discloses a channel inconsistency error correction direction-finding method of channel state information, and belongs to the technical field of indoor positioning. The method comprises the following implementation steps: modeling a CSI direction finding algorithm; calculating the time of flight (ToF) of the direct wave by using single antenna data; the CSI data among the paired antennas are smoothed to increase the aperture of a receiving array; calculating the amplitude-phase error between paired antennas by using the direct wave flight time ToF and the direct wave incident angle prior information; and establishing an amplitude-phase error table under different incoming wave directions according to the offline data, dynamically selecting a gamma value according to the table in an online process, and performing channel amplitude-phase error correction and iterative direction finding. The method solves the problem of complex inter-channel amplitude and phase error correction of the commercial Wi-Fi network card, ensures the accuracy of CSI direction finding of the Wi-Fi network card, effectively reduces the complexity and cost of deployment and use of an indoor positioning system based on the commercial Wi-Fi network card, has wide application prospect, is simple to operate, does not need special equipment, and can effectively adapt to indoor multipath environment.

摘要：【中文】本发明公开了公开了一种乳化沥青混合料压实等待时间的评价方法，其包括以下步骤：将乳化沥青混合料按照设计配合比进行搅拌，拌合完成后开始计时t₁；将乳化沥青混合料装入特制的试模中进行压实，记录开始压实时间t₂，并通过压实浆液收集装置将乳化沥青混合料中挤压出的浆液进行收集；计算乳化沥青混合料的失水率和浆液中的油水比；通过压实等待时间t与试件失水率和浆液油水比两个指标的曲线变化规律确定最佳压实等待时间。本发明操作简单高效，可以准确确定乳化沥青混合料最佳的压实等待时机。 【EN】The invention discloses an evaluation method of compaction waiting time of an emulsified asphalt mixture, which comprises the following steps: stirring the emulsified asphalt mixture according to the designed mixing proportion, and starting timing t after the stirring is finished₁(ii) a Filling the emulsified asphalt mixture into a special test mold for compaction, and recording the compaction starting time t₂Collecting the slurry extruded out of the emulsified asphalt mixture by a compaction slurry collecting device; calculating the water loss rate of the emulsified asphalt mixture and the oil-water ratio in the slurry; and determining the optimal compaction waiting time according to the curve change rules of the compaction waiting time t, the water loss rate of the test piece and the slurry oil-water ratio. The method is simple and efficient to operate, and can accurately determine the optimal compaction waiting time of the emulsified asphalt mixture.