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申请号:201911054134.0 公开号:CN110929302A 主分类号:G06F21/78
申请人:【中文】东南大学【EN】SOUTHEAST University 申请日:2019.10.31 公开日:2020.03.27
摘要:【中文】本发明公开了一种数据安全加密存储方法及存储装置,所述存储装置将待读写的数据文件分为“体数据”和“元数据”两部分,通过对文件读写过程的非对称及选择性处理,即:对所有待写入数据文件的体数据实行加密后存储,而对元数据不加密;读出操作时根据用户身份认证情况决定是否解密数据,以此获得文件内容加密存储的安全性及受控的文件解密权限管理。同时,由于元数据不加密,使得主机设备在不解密文件体数据的情况下,能够正常识别存储在所述存储装置上的加密文件,保持了良好的兼容性。在某些特定情况下,如照相机、摄像机这类主机设备在拍摄时,不会因所述存储装置对体数据的加密而影响正常拍摄、记录存储功能。本发明也适用于其他主机设备。 【EN】The invention discloses a data security encryption storage method and a storage device, wherein the storage device divides a data file to be read and written into a volume data part and a metadata part, and the volume data part and the metadata part are processed asymmetrically and selectively in the process of reading and writing the file, namely: encrypting and storing volume data of all data files to be written, and not encrypting the metadata; and when the file is read out, whether the data is decrypted or not is determined according to the user identity authentication condition, so that the safety of file content encryption storage and controlled file decryption authority management are obtained. Meanwhile, the metadata is not encrypted, so that the host equipment can normally identify the encrypted file stored on the storage device under the condition of not decrypting the file body data, and good compatibility is kept. In some specific cases, when a host device such as a camera or a video camera is used for shooting, the normal shooting and recording storage functions are not influenced due to the encryption of the volume data by the storage device. The invention is also applicable to other host devices.
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申请号:201911165116.X 公开号:CN110885434A 主分类号:C08G64/30
摘要:【中文】本发明涉及共聚聚碳酸酯领域,具体涉及一种新型阻燃共聚聚碳酸酯的制备方法。具体的制备方法为:(a)将计量的BPA、DPC和无卤阻燃剂,搅拌均匀,添加催化剂,再一起加入到装有温控计、搅拌器和氮气保护装置的反应釜中,一定温度下反应一段时间;(b)升高温度后继续反应一定时间后得到阻燃共聚聚碳酸酯。本发明制得的阻燃共聚聚碳酸酯的耐热性和热稳定性均良好,刚性和透明性优异,而且阻燃性良好,仍是优异的成型加工性工程塑料。 【EN】The invention relates to the field of copolymerized polycarbonate, in particular to a preparation method of novel flame-retardant copolymerized polycarbonate. The preparation method comprises the following steps: (a) uniformly stirring the measured BPA, DPC and halogen-free flame retardant, adding a catalyst, adding the mixture into a reaction kettle provided with a temperature controller, a stirrer and a nitrogen protection device, and reacting for a period of time at a certain temperature; (b) and raising the temperature, and continuing to react for a certain time to obtain the flame-retardant copolymerized polycarbonate. The flame-retardant copolymerized polycarbonate prepared by the invention has good heat resistance and thermal stability, excellent rigidity and transparency, good flame retardance and excellent molding processability.
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申请号:201911270458.8 公开号:CN110923554A 主分类号:C22C33/08
摘要:【中文】本发明属于商用车缸体材质制造技术领域,具体涉及一种高强度商用车缸体熔炼方法。包括熔炼、孕育及变质处理、浇注三个过程。在孕育及变质处理过程中,加入某种特殊的合金变质剂,控制铁水中若干种元素的含量,可达到确保缸体抗拉强度稳定的效果。重点监控气压保温浇注炉铁水中的V、N元素,分别达到V:0.035‑0.055%,N:120‑160ppm。本发明在常规缸体熔炼方法基础上加上特殊合金变质处理及V、N元素监控,合金加入量减少,成本降低,稳定和改善了缸体抗拉强度,满足了集团高强度缸体的要求,适合铸造厂批量化生产。 【EN】The invention belongs to the technical field of manufacturing of cylinder bodies of commercial vehicles, and particularly relates to a method for smelting a high-strength cylinder body of a commercial vehicle. Comprises three processes of smelting, inoculation, modification and pouring. In the inoculation and modification process, a special alloy modifier is added to control the content of a plurality of elements in the molten iron, so that the effect of ensuring the stable tensile strength of the cylinder body can be achieved. The V, N elements in the molten iron of the air pressure heat-preservation pouring furnace are monitored to reach 0.035-0.055 percent of V and 160ppm of N120-. The invention adds special alloy modification treatment and V, N element monitoring on the basis of the conventional cylinder body smelting method, reduces the alloy addition amount, reduces the cost, stabilizes and improves the tensile strength of the cylinder body, meets the requirements of group high-strength cylinder bodies, and is suitable for batch production in casting plants.
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申请号:201911165112.1 公开号:CN110964190A 主分类号:C08G64/30
摘要:【中文】本发明涉及一种用于聚碳酸酯合成工艺中的原料输送及调配装置,包括:DPC输送装置;BPA输送装置;浆料调配罐,所述浆料调配罐分别与所述BPA输送装置、所述DPC输送装置连通;混合物配制罐,所述混合物配制罐与所述浆料调配罐连通,所述混合物配制罐设置有第一催化剂加料口;混合物缓冲罐,所述混合物缓冲罐与所述混合物配制罐连通;出料加热器,所述出料加热器与所述混合物缓冲罐连通;反应系统,所述反应系统与所述出料加热器连通;尾气处理系统,所述尾气处理系统分别与混合物配制罐和混合物缓冲罐连通。原料混合充分、混合温度较低,制备聚碳酸酯转化率高;产生的尾气较少,环保节能;实现DPC和PC的连续化生产。 【EN】The invention relates to a raw material conveying and blending device used in a polycarbonate synthesis process, which comprises: a DPC conveying device; a BPA transport device; a slurry blending tank in communication with the BPA transport device and the DPC transport device, respectively; the mixture preparation tank is communicated with the slurry mixing tank and is provided with a first catalyst feeding port; a mixture surge tank in communication with the mixture preparation tank; the discharging heater is communicated with the mixture buffer tank; a reaction system in communication with the discharge heater; and the tail gas treatment system is respectively communicated with the mixture preparation tank and the mixture buffer tank. The raw materials are fully mixed, the mixing temperature is lower, and the conversion rate of preparing the polycarbonate is high; the generated tail gas is less, and the environment is protected and the energy is saved; realizing continuous production of DPC and PC.
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申请号:201911147287.X 公开号:CN110983170A 主分类号:C22C37/10
摘要:【中文】本发明属于商用车刹车鼓材质制造技术领域,具体涉及一种耐热疲劳商用车刹车鼓熔炼方法;包括熔炼、孕育、浇注三个过程,在常规的熔炼原料中加入钼、铬化合物,浇注完毕冷却后用于加工成商用车刹车鼓,制得的刹车鼓抗拉强度和硬度均有所提高。 【EN】The invention belongs to the technical field of manufacturing of brake drum materials of commercial vehicles, and particularly relates to a method for smelting a heat-fatigue-resistant brake drum of a commercial vehicle; the method comprises three processes of smelting, inoculation and pouring, wherein molybdenum and chromium compounds are added into conventional smelting raw materials, and the obtained materials are cooled after pouring to be processed into the brake drum of the commercial vehicle, so that the tensile strength and the hardness of the prepared brake drum are improved.
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申请号:201910936392.5 公开号:CN110863031A 主分类号:C12Q1/06
摘要:【中文】本发明涉及医药技术领域,具体是指一种检测布鲁菌病治疗效果的标志物及其应用。本发明的目的在于提供嗜酸性粒细胞水平在预测布鲁菌病治疗效果中的用途,具体地涉及通过检测嗜酸性粒细胞计数及百分比评估布鲁菌病患者的治疗效果。一种检测布鲁菌病治疗效果的标志物,所述标志物的为嗜酸性粒细胞。本发明首次揭示了:在布鲁菌病患者中嗜酸性粒细胞计数及比例下调,予以抗感染治疗后嗜酸性粒细胞计数及比例逐渐恢复。 【EN】The invention relates to the technical field of medicines, in particular to a marker for detecting the treatment effect of brucellosis and application thereof. The invention aims to provide application of eosinophil level in predicting therapeutic effect of brucellosis, and particularly relates to evaluation of therapeutic effect of brucellosis patients by detecting eosinophil count and percentage. A marker for detecting the treatment effect of brucellosis, wherein eosinophils are adopted as the marker. The invention discloses for the first time: eosinophil count and proportion are reduced in brucella patients, and eosinophil count and proportion are gradually recovered after anti-infection treatment.
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申请号:202010002540.9 公开号:CN111189753A 主分类号:G01N15/08
申请人:【中文】淮阴工学院【EN】HUAIYIN INSTITUTE OF TECHNOLOGY 申请日:2020.01.02 公开日:2020.05.22
摘要:【中文】本发明公开了一种透水混凝土长期渗透特性演化试验系统及方法,系统包括供水箱,所述供水箱通过供水管与稳压水箱连通,所述供水管连接有水泵,所述稳压水箱内分割有回流室和稳流室,所述稳流室一侧设置有颗粒供给器,所述稳流室底部连通渗透仪,所述渗透仪内安装有透水混凝土试样。本发明可以测量透水混凝土长期使用情况下渗透特性的演化规律,本发发明可实现试样与渗流仪器间良好密封,透水混凝土试验和渗流仪器结合部形成边界过度区,可减小甚至消除边界效应;通过监控透水混凝土电阻变化,可监测流体与颗粒在透水混凝土中运移情况。 【EN】The invention discloses a permeable concrete long-term permeability characteristic evolution test system and method, wherein the system comprises a water supply tank, the water supply tank is communicated with a pressure stabilizing water tank through a water supply pipe, the water supply pipe is connected with a water pump, a reflux chamber and a flow stabilizing chamber are divided in the pressure stabilizing water tank, a particle feeder is arranged on one side of the flow stabilizing chamber, the bottom of the flow stabilizing chamber is communicated with a permeameter, and a permeable concrete sample is arranged in the permeameter. The invention can measure the evolution law of permeability characteristics of the pervious concrete under the long-term use condition, can realize good sealing between the sample and the seepage instrument, and can reduce or even eliminate the boundary effect because a boundary transition area is formed by the combination part of the pervious concrete test and the seepage instrument; by monitoring the change of the resistance of the pervious concrete, the migration condition of the fluid and the particles in the pervious concrete can be monitored.
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申请号:201911012109.6 公开号:CN111143914A 主分类号:G06F30/13
摘要:【中文】本发明公开考虑施工偏差的桥梁混凝土剪力键力学模型快速估计方法,包括以下步骤:获取并确定剪力键的设计参数及各设计参数值;根据步骤(1)所获取的设计参数值建立剪力键的最大承载能力计算函数Vd(α,ηs);根据步骤(1)所得设计参数值建立梁体与剪力键夹角影响函数ηθ(θ,α,i);根据步骤(1)、步骤(2)和步骤(3)所得参数值建立剪力键的最大承载能力值Vpeak;根据步骤4所得参数值计算,可确定剪力键的力学模型。本发明为混凝土剪力键的加固或结构抗震加固的方法选择提供了依据;实现了桥梁工程的交竣工验收、运营期检测评估中,剪力键的施工质量评价从描述性评价到定量评价的飞跃。 【EN】The invention discloses a bridge concrete shear key mechanical model rapid estimation method considering construction deviation, which comprises the following steps: obtaining and determining design parameters and design parameter values of a shear key; establishing a maximum bearing capacity calculation function V of the shear key according to the design parameter values acquired in the step (1)d(α,ηs) Establishing η an angle influence function between the beam body and the shear key according to the design parameter value obtained in the step (1)θ(theta, α, i) establishing the maximum bearing capacity value V of the shear key according to the parameter values obtained in the step (1), the step (2) and the step (3)peak(ii) a And (4) calculating according to the parameter values obtained in the step (4) to determine a mechanical model of the shear key. The invention relates to the addition of a concrete shear keyThe method selection of the seismic strengthening or the structural seismic strengthening provides a basis; the construction quality evaluation of the shear key is greatly improved from descriptive evaluation to quantitative evaluation in acceptance of completion of bridge engineering and detection and evaluation of operation period.
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