摘要：【中文】本发明提供了一种数据解密方法、装置和计算机可读存储介质，其中所述方法包括：从非易失性存储器中读取第一哈希值；从一次性可编程芯片中读取第二哈希值；利用所述第二哈希值对所述第一哈希值进行初次校验；如果初次校验通过，则从非易失性存储器中读取待解密数据；基于预设哈希函数计算所述待解密数据的第三哈希值；利用所述第三哈希值对所述第一哈希值进行二次校验；如果二次校验通过，则对所述待解密数据进行解密。本发明先对待解密数据进行二次校验以验证其完整性，进而在保证待解密数据完整性的情况下，再对待解密数据进行解密操作，有效避免待解密数据被以旁路攻击的方式破译出加密算法的密钥。 【EN】The invention provides a data decryption method, a data decryption device and a computer-readable storage medium, wherein the method comprises the following steps: reading the first hash value from the non-volatile memory; reading a second hash value from the one-time programmable chip; performing primary check on the first hash value by using the second hash value; if the initial verification passes, reading data to be decrypted from the nonvolatile memory; calculating a third hash value of the data to be decrypted based on a preset hash function; carrying out secondary verification on the first hash value by using the third hash value; and if the secondary verification is passed, decrypting the data to be decrypted. The method and the device firstly carry out secondary verification on the data to be decrypted to verify the integrity of the data to be decrypted, and then carry out decryption operation on the data to be decrypted under the condition of ensuring the integrity of the data to be decrypted, thereby effectively avoiding the data to be decrypted from decoding the key of the encryption algorithm in a bypass attack mode.

摘要：【中文】本发明提供一种潜水轴流泵汽蚀试验密封水罐，包括主箱体和出水组件，主箱体具有容纳潜水轴流泵的腔体，主箱体的一端设有进水接管，出水组件设置于主箱体的另一端，出水组件包括出水接管、进口法兰、出口法兰和法兰盖，法兰盖套设于出水接管的外壁并出水接管固定连接，法兰盖与主箱体密封连接，进口法兰固定连接于出水接管的一端，出口法兰固定连接于出水接管的另一端，进口法兰位于主箱体内，用于连接潜水轴流泵；其中，主箱体的侧壁设有测压管口，测压管口用于与潜水轴流泵的环形进水口相连。本发明解决了潜水轴流泵汽蚀试验试验台安装复杂的问题，使汽蚀试验的可靠性得到了提高。 【EN】The invention provides a sealed water tank for a cavitation test of a submersible axial-flow pump, which comprises a main tank body and a water outlet assembly, wherein the main tank body is provided with a cavity for accommodating the submersible axial-flow pump, one end of the main tank body is provided with a water inlet connecting pipe, the water outlet assembly is arranged at the other end of the main tank body, the water outlet assembly comprises a water outlet connecting pipe, an inlet flange, an outlet flange and a flange cover, the flange cover is sleeved on the outer wall of the water outlet connecting pipe and fixedly connected with the water outlet connecting pipe, the flange cover is hermetically connected with the main tank body, the inlet flange is fixedly connected with one end of the water outlet connecting pipe, the outlet flange is fixedly connected with the other end of the water outlet connecting pipe; the side wall of the main box body is provided with a pressure measuring pipe orifice, and the pressure measuring pipe orifice is used for being connected with an annular water inlet of the submersible axial-flow pump. The invention solves the problem of complex installation of the cavitation test bed of the submersible axial-flow pump, and improves the reliability of the cavitation test.

摘要：【中文】本申请涉及一种三维点云实例分割方法、系统及电子设备。包括：步骤a：向点云实例分割模型输入点云数据，分割模型对点云数据进行特征提取，并输出点云数据的语义分割标签，以及每个点的高维向量；步骤b：对每个点的物体类别进行预测，将点嵌入至高维向量中；步骤c：在完成向量嵌入后，通过种子点选择网络对每个点的“种子性”进行预测，选取较好的种子点作为基准点生成实例，得到每个点的实例标签。本申请通过加入种子点选择网络，对点云数据中的各个点进行“种子性”判断，进而选择出较好的种子点生成proposal，从而实现更好的实例分割，对网络模型的后处理有明显的提速作用，解决了当前点云实例分割技术准确率不高、效率低下的问题。 【EN】The application relates to a three-dimensional point cloud example segmentation method, a three-dimensional point cloud example segmentation system and electronic equipment. The method comprises the following steps: step a: inputting point cloud data into the point cloud example segmentation model, extracting the characteristics of the point cloud data by the segmentation model, and outputting semantic segmentation labels of the point cloud data and high-dimensional vectors of all points; step b: predicting the object type of each point, and embedding the point into a high-dimensional vector; step c: after vector embedding is completed, predicting the 'seed' of each point through a seed point selection network, selecting a better seed point as a reference point to generate an example, and obtaining an example label of each point. According to the method and the device, a seed point selection network is added, so that each point in the point cloud data is judged to be 'seed', and then a better seed point is selected to generate the proposal, so that better instance segmentation is realized, an obvious acceleration effect is realized on the post-processing of a network model, and the problems of low accuracy and low efficiency of the current point cloud instance segmentation technology are solved.

摘要：【中文】本发明涉及一种亚氧化钛黑色颜料及其制备方法。通过：对亚氧化钛核体进行湿磨，再采用溶胶‑凝胶法在湿磨后的亚氧化钛核体上包覆Al₂O₃膜和SiO₂膜，得到含两层包覆层的亚氧化钛黑色颜料。包覆Al₂O₃膜时，控制煅烧的升温速率为2℃/min～7℃/min，恒温煅烧的温度为350℃～800℃，时间为1h～10h；包覆SiO₂膜时，控制煅烧的升温速率为2℃/min～7℃/min，恒温煅烧的温度为100℃～600℃，时间为1h～10h；通过形成致密的Al₂O₃膜和SiO₂膜，赋予亚氧化钛黑色颜料优良的绝缘性，以及减少氧缺陷和光活性基团在表层的暴露，有效阻隔亚氧化钛核体与有机物的接触，协同提高亚氧化钛黑色颜料的光稳定性，达到延长使用寿命的效果。 【EN】The invention relates to a titanium suboxide black pigment and a preparation method thereof. By: wet grinding titanium suboxide core body, and coating Al on the wet ground titanium suboxide core body by sol-gel method₂O₃Film and SiO₂And (3) film forming to obtain the titanium suboxide black pigment containing two coating layers. Coated with Al₂O₃During film forming, the temperature rising rate of calcination is controlled to be 2 ℃/min to 7 ℃/min, the temperature of constant-temperature calcination is 350 ℃ to 800 ℃, and the time is 1h to 10 h; coated SiO₂During film forming, the temperature rising rate of calcination is controlled to be 2 ℃/min to 7 ℃/min, the temperature of constant-temperature calcination is 100 ℃ to 600 ℃, and the time is 1h to 10 h; by forming dense Al₂O₃Film and SiO₂Film for imparting excellent insulating property to titanium suboxide black pigment and for reducing oxygen defect and photoactive group in surface layerAnd exposure is performed, so that the contact between the titanium suboxide core body and the organic matter is effectively blocked, the light stability of the titanium suboxide black pigment is synergistically improved, and the effect of prolonging the service life is achieved.

摘要：【中文】本发明公开了一种上部网格参与平衡拉索预拉力的环形索承网格结构的施工方法。本发明施工步骤为：①首先安装柱子和外环；②然后在主网格下安装可受压和拉的胎架，胎架顶设水平滑移装置；③然后在胎架上安装主网格和相应撑杆，此时胎架受压；④然后安装和张拉下部索网，此时胎架受拉且顶端与主网格有水平相对滑移；⑤然后安装悬挑网格和相应撑杆；⑥最后安装部分或全部屋面系统后卸除胎架。该施工方法无需在悬挑网格下设置胎架，便于环索铺展和提升安装；设置可受压和拉的胎架来维持拉索张拉时主网格标高，有利于控制悬挑网格安装精度；该施工方法符合上部网格参与平衡拉索预拉力的索承网格结构的力学特性，且有利于高效和高精度的施工成型。 【EN】The invention discloses a construction method of an annular cable-supported grid structure with an upper grid participating in balancing the pretension of a stay cable, which comprises the following construction steps of ①, firstly installing a column and an outer ring, ②, then installing a jig frame capable of being pressed and pulled under the main grid, arranging a horizontal sliding device on the top of the jig frame, ③, then installing the main grid and a corresponding support rod on the jig frame, pressing the jig frame, ④, then installing and tensioning a lower cable net, pulling the jig frame and horizontally and relatively sliding the top end of the jig frame and the main grid, ⑤, then installing a cantilever grid and a corresponding support rod, ⑥, and finally removing the jig frame after installing part or all of a roof system.

摘要：【中文】本发明公开一种方便操作的人工通道，包括：第一支架；固定流利条，固定流利条设于第一支架上；第二支架，第二支架与第一支架的一端之间形成通道；抬起部件，抬起部件的一端与第一支架的一端转动连接，抬起部件可旋转地处于第一位置以及第二位置上，抬起部件处于第一位置时抬起部件的另一端架设于第二支架上，抬起部件呈水平设置，抬起部件处于第二位置时抬起部件位于第一支架的一端上，抬起部件呈竖直设置；气弹簧，气弹簧的一端与第一支架的一端转动连接，气弹簧的另一端与抬起部件的一端转动连接，气弹簧用于驱动抬起部件旋转。本发明操作方便、安全性能高，在实际流水线生产过程中得到良好的使用效果。 【EN】The invention discloses a convenient-to-operate artificial channel, which comprises: a first bracket; the fixed fluency strip is arranged on the first bracket; a channel is formed between the second bracket and one end of the first bracket; the lifting component is rotatably arranged at a first position and a second position, the other end of the lifting component is erected on the second support when the lifting component is at the first position, the lifting component is horizontally arranged, the lifting component is positioned at one end of the first support when the lifting component is at the second position, and the lifting component is vertically arranged; one end of the gas spring is rotatably connected with one end of the first support, the other end of the gas spring is rotatably connected with one end of the lifting component, and the gas spring is used for driving the lifting component to rotate. The invention has convenient operation and high safety performance, and obtains good use effect in the actual production process of the production line.

摘要：【中文】本发明公开了一种RLC放电回路的脉冲电磁力和放电电感的同步测量装置及方法；该装置包括脉冲电磁力加载器、测量杆、电阻应变片和超动态应变仪；该方法包括安装同步测量装置，测量应力波的应变时间函数，计算脉冲电磁力，计算放电电感。本发明将RLC放电回路激发的脉冲电磁力转化为细长杆中的一维应力波，通过对单一变量脉冲电磁力应力波的测量，实现了基于RLC放电回路的脉冲电磁力加载设备的脉冲电磁力和放电电感的同步测量。此外，本发明可运用于脉冲力测量领域，可实现对高频率脉冲力的测量，并保证了测量值与真实值之间的一致性。 【EN】The invention discloses a synchronous measuring device and method of pulse electromagnetic force and discharge inductance of an RLC discharge circuit; the device comprises a pulse electromagnetic force loader, a measuring rod, a resistance strain gauge and a super-dynamic strain gauge; the method comprises the steps of installing a synchronous measuring device, measuring a strain time function of a stress wave, calculating pulse electromagnetic force and calculating discharge inductance. The invention converts the pulse electromagnetic force excited by the RLC discharge circuit into a one-dimensional stress wave in the slender rod, and realizes the synchronous measurement of the pulse electromagnetic force and the discharge inductance of the pulse electromagnetic force loading equipment based on the RLC discharge circuit by measuring the single variable pulse electromagnetic force stress wave. In addition, the invention can be applied to the field of pulse force measurement, can realize the measurement of high-frequency pulse force and ensures the consistency between the measured value and the actual value.

摘要：【中文】本发明公开了一种金属孔结构的冷挤压强化摩擦系数测试方法，该方法包括利用拉美公式建立金属孔结构的径向压应力关于强化量的数学模型，结合金属孔结构冷挤压强化过程的结构和强化特征，建立基于库伦摩擦原理的强化阻力理论模型，最后通过强化阻力测量装置测量强化阻力‑位移曲线，分析曲线特征并对曲线线性摩擦阻力阶段进行线性拟合，将拟合参数代入理论摩擦阻力模型计算得到芯棒与挤压孔壁的摩擦系数。本发明实现了金属孔结构冷挤压过程中芯棒和挤压孔壁的摩擦系数有效测试，为冷挤压强化技术的研究和工程应用提供关键参数，并且具有计算效率高、准确度高、成本低，工程应用性强等优点。 【EN】The invention discloses a cold extrusion strengthening friction coefficient test method of a metal pore structure, which comprises the steps of establishing a mathematical model of radial compressive stress of the metal pore structure about strengthening amount by using a Ramami formula, establishing a strengthening resistance theoretical model based on the Coulomb friction principle by combining the structure and strengthening characteristics of the cold extrusion strengthening process of the metal pore structure, finally measuring a strengthening resistance-displacement curve by a strengthening resistance measuring device, analyzing the characteristics of the curve, performing linear fitting on the linear friction resistance stage of the curve, and substituting fitting parameters into the theoretical friction resistance model to calculate the friction coefficient of a core rod and an extruded pore wall. The method realizes effective test of the friction coefficient of the core rod and the extruded hole wall in the cold extrusion process of the metal hole structure, provides key parameters for research and engineering application of a cold extrusion strengthening technology, and has the advantages of high calculation efficiency, high accuracy, low cost, strong engineering applicability and the like.

摘要：【中文】本发明公开了一种CFRP结构干涉配合紧固件脉冲电磁力安装电压计算方法，该方法针对CFRP干涉配合连接结构的特点，将干涉配合紧固件安装阻力简化为摩擦阻力，利用复合材料弹性应力应变关系计算安装孔孔周径向压力，进一步利用库伦摩擦理论和安装孔结构特征建立安装阻力的数学模型，然后结合脉冲电磁力加载原理建立最小安装能模型，并假设安装能均用于克服安装阻力做功，最后建立能量守恒关系并计算出安装电压。本发明能够实现计算不同干涉量下安装干涉配合紧固件所需的安装电压，用于指导CFRP结构干涉配合紧固件脉冲电磁力应力波安装电压的选择。 【EN】The invention discloses a CFRP structure interference fit fastener pulse electromagnetic force installation voltage calculation method, aiming at the characteristics of a CFRP interference fit connection structure, simplifying the installation resistance of an interference fit fastener into frictional resistance, calculating the circumferential radial pressure of an installation hole by using the elastic stress-strain relation of a composite material, further establishing a mathematical model of the installation resistance by using the coulomb friction theory and the structural characteristics of the installation hole, then establishing a minimum installation energy model by combining the pulse electromagnetic force loading principle, assuming that the installation energy is all used for overcoming the installation resistance to do work, and finally establishing an energy conservation relation and calculating the installation voltage. The method can realize calculation of the installation voltage required by installation of the interference fit fastener under different interference quantities, and is used for guiding selection of the installation voltage of the CFRP structure interference fit fastener pulse electromagnetic force stress wave.

摘要：【中文】本发明属于亚临界循环流化床参与电网调峰灵活性改造方法技术领域，具体涉及一种亚临界循环流化床锅炉适应电网深度调峰的方法。本发明方法可以适应电网调峰需求，在新能源发电高峰期，锅炉压火，汽机负荷降低至3‑8MW，厂用电及辅助蒸汽由另一台机接带，保证机组不解网低负荷运行2‑3小时，刚好满足电网低谷调峰时段要求，同时也能获得深度调峰补偿满足电厂盈利要求。本发明操作简单，可以使单元制的用电系统互相串带，保证机组在压火期间利益最大化，具有一定的经济性。 【EN】The invention belongs to the technical field of methods for participating in power grid peak regulation flexibility transformation by a subcritical circulating fluidized bed, and particularly relates to a method for adapting a subcritical circulating fluidized bed boiler to power grid deep peak regulation. The method can adapt to the peak regulation requirement of a power grid, the boiler is fired at the peak period of new energy power generation, the load of a steam turbine is reduced to 3-8MW, the service power and the auxiliary steam are connected by another turbine, the unit is ensured not to be disconnected from the power grid and operate at low load for 2-3 hours, the requirement of the power grid at the valley peak regulation period is just met, and meanwhile, the deep peak regulation compensation can be obtained to meet the profit requirement of a power plant. The invention has simple operation, can lead the power utilization systems of unit systems to be mutually connected, ensures the benefit maximization of the machine set during the period of fire suppression, and has certain economical efficiency.