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申请号:201911187376.7 公开号:CN111125455A 主分类号:G06F16/903
申请人:【中文】哈尔滨工程大学【EN】HARBIN ENGINEERING University 申请日:2019.11.28 公开日:2020.05.08
摘要:【中文】本发明公开了一种基于有向图的局部重叠社区发现模型,为解决有向性,提出有向转变为带权重的无向图的模型;进一步的,为研究社区重叠性,提出基于有向图的局部重叠社区发现模型。该模型包含以下五个部分:步骤S1:在有向社交网络图中,找出入度和出度平均值最大的节点作为中心节点;步骤S2:在有向社交网络中,某节点的邻居节点集中,邻居节点之和最多的节点成为该节点的密友;步骤S3:寻找结点隶属社区的紧密度;步骤S4:寻找重叠结点与社区的重叠度;步骤S5:相邻社区以及相邻社区之间的紧密度;本发明的有益效果是:基于有向图进行深入探究,增加真实性;重点关注了模型对真实社区的重叠性;社区发现的结果精准度高。 【EN】The invention discloses a local overlapping community discovery model based on a directed graph, and provides a model for converting the directed graph into an undirected graph with weights for solving the directionality; furthermore, a local overlapping community discovery model based on a directed graph is proposed for researching community overlapping. The model comprises the following five parts: step S1: finding out a node with the largest average value of the in-degree and the out-degree in the directed social network graph as a central node; step S2: in the directed social network, the neighbor nodes of a certain node are concentrated, and the node with the maximum sum of the neighbor nodes becomes a close friend of the node; step S3: searching the compactness of the community to which the node belongs; step S4: searching the overlapping degree of the overlapping node and the community; step S5: closeness between adjacent communities and between adjacent communities; the invention has the beneficial effects that: deep exploration is carried out based on a directed graph, and authenticity is increased; the overlapping of the model to the real community is focused; the result accuracy of community discovery is high.
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申请号:201811396664.9 公开号:CN111210778A 主分类号:G09G3/34
摘要:【中文】本发明公开了一种背光源驱动信号调制的方法和装置,用以解决现有技术中存在液晶显示器在显示低灰阶图像时存在闪烁感的问题。本发明实施例中,显示装置判定需要对背光源的驱动信号进行调整时,增大驱动信号的PWM频率;然后根据确定的PWM频率和通过图像信息确定的PWM占空比调制驱动背光源的驱动信号。如此,在显示低灰阶图像时,显示装置可以在保持低灰阶图像对应的控制区域内图像亮度不变的同时,增大控制区域的驱动信号的PWM频率,以使驱动信号两次高电平之间的低电平时长减小,进而使得背光源两次点亮之间暗屏的时间变短,以此来减轻显示低灰阶图像时存在的闪烁感。 【EN】The invention discloses a method and a device for modulating a backlight source driving signal, which are used for solving the problem that a liquid crystal display in the prior art has flicker feeling when displaying a low-gray-scale image. In the embodiment of the invention, when the display device judges that the driving signal of the backlight needs to be adjusted, the PWM frequency of the driving signal is increased; and then modulates a driving signal for driving the backlight according to the determined PWM frequency and the PWM duty determined by the image information. Therefore, when the low gray scale image is displayed, the display device can keep the brightness of the image in the control area corresponding to the low gray scale image unchanged, and simultaneously increase the PWM frequency of the driving signal in the control area, so that the low level duration between two times of high levels of the driving signal is reduced, and further the time of dark screen between two times of lightening of the backlight source is shortened, thereby reducing the flicker feeling existing when the low gray scale image is displayed.
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申请号:201911367595.3 公开号:CN111116875A 主分类号:C08G63/183
摘要:【中文】本发明公开了一种用于锂电池铝塑膜复合的高韧性耐冲压聚酯树脂;制备时,将含刚性结构的二元羧酸或酸酯单体25~35%、具有九个及以上线性碳链的二元羧酸32~42%、具有对称结构且碳链数≤4的二元醇31~37%和含两个以上不对称烷基的二元醇1~3%投入反应容器中加热搅拌;加催化剂0.01%~0.05%升温反应;测得反应容器内物料酯化率>94%时抽真空,逐步提高真空度至反应容器内物料羟值46±4mgKOH/g;升温至260±5℃抽真空,逐步提高真空度至300Pa以下,反应容器内物料羟值为4±0.5mgKOH/g;即得。本发明的树脂韧性相关指标有优势;冲击测试良品率更高,深冲测试最高可达15mm。 【EN】The invention discloses a high-toughness stamping-resistant polyester resin for compounding an aluminum plastic film of a lithium battery; when in preparation, 25-35% of dicarboxylic acid or acid ester monomer containing rigid structure, 32-42% of dicarboxylic acid with nine or more linear carbon chains, 31-37% of dihydric alcohol with symmetrical structure and carbon chain number less than or equal to 4 and 1-3% of dihydric alcohol containing more than two asymmetric alkyl groups are put into a reaction container for heating and stirring; adding 0.01 to 0.05 percent of catalyst for heating reaction; when the esterification rate of the materials in the reaction vessel is measured to be more than 94 percent, vacuumizing, and gradually increasing the vacuum degree to the hydroxyl value of the materials in the reaction vessel of 46 +/-4 mgKOH/g; heating to 260 +/-5 ℃, vacuumizing, gradually increasing the vacuum degree to below 300Pa, wherein the hydroxyl value of the material in the reaction container is 4 +/-0.5 mgKOH/g; and (5) obtaining the product. The related indexes of the toughness of the resin have advantages; the impact test yield is higher, and the deep drawing test can reach 15mm at most.
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申请号:201911203599.8 公开号:CN110910505A 主分类号:G06T17/20
摘要:【中文】本发明公开了一种场景模型的加速渲染方法,1.将所有node节点作为为模型瓦片的基础对象;2.将一个模型瓦片对应node结点的属性抽取出来,构成新的文件;3.生成三角网格,查询三角网格信息,并以数组的形式存储三角网格的顶点索引;4.建立模型瓦片数据的空间八叉树索引,将所有node节点整合到八叉树数据结构;5.计算相机空间坐标系中视场的锥体裁剪范围;6.判断节点所在的LOD层级,对八叉树进行视锥剔除;7.将顶点删除后,对空洞几何特征进行三角化;8.将三角化后的数据送入渲染,渲染完成后,刷新当前场景模型,本次渲染结束。实现了瓦片的渲染简化、加速绘制,提高了三维瓦片的加载效率。 【EN】The invention discloses an accelerated rendering method of a scene model, which comprises the following steps of 1, taking all node nodes as basic objects of a model tile; 2. extracting the attribute of a node corresponding to a model tile to form a new file; 3. generating a triangular mesh, inquiring triangular mesh information, and storing a vertex index of the triangular mesh in an array form; 4. establishing a spatial octree index of the model tile data, and integrating all node nodes into an octree data structure; 5. calculating a cone cutting range of a view field in a camera space coordinate system; 6. judging the LOD level of the node, and removing the view cones of the octree; 7. after the top point is deleted, triangularization is carried out on the geometric characteristics of the hollow; 8. and sending the triangulated data into the rendering, refreshing the current scene model after the rendering is finished, and finishing the rendering. The rendering simplification and the accelerated drawing of the tiles are realized, and the loading efficiency of the three-dimensional tiles is improved.
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申请号:201911206466.6 公开号:CN110910302A 主分类号:G06T1/60
申请人:【中文】西安交通大学【EN】XI'AN JIAOTONG University 申请日:2019.11.29 公开日:2020.03.24
摘要:【中文】本发明提供一种特大图像的存储与读写方法,能够支持对图像任意区域进行任意分辨率的读写操作的同时,提供更优的运行效率,占用更少的计算机资源。通过使用以金字塔结构保存图像数据的方法,使得每次读写只需将与操作区域相关的区块载入内存,而不是传统方法中的整张图像,使得特大图像分析与处理在低端配置的电脑上进行更加简便。并且本方法无需用户将图像再次分割为小块图像进行处理,节省了内存和硬盘空间。此外,本发明使得对于图像的局部修改不再需要重新生成整个图像文件,而是仅仅生成被修改区域,使得单次读写操作时空复杂度均为线性,大大提高了特大图像局部修改的性能。 【EN】The invention provides a method for storing and reading and writing super-large images, which can support the reading and writing operation with any resolution ratio on any area of the images, and simultaneously provides better operation efficiency and occupies less computer resources. By using the method for storing the image data in the pyramid structure, the blocks related to the operation area are only loaded into the memory instead of the whole image in the traditional method for each reading and writing, so that the analysis and processing of the extra-large image are simpler and more convenient on a computer configured at the low end. In addition, the method does not need the user to divide the image into small blocks again for processing, thereby saving the space of the memory and the hard disk. In addition, the invention ensures that the local modification of the image does not need to regenerate the whole image file any more, but only generates the modified area, so that the space-time complexity of single read-write operation is linear, and the performance of local modification of the extra-large image is greatly improved.
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申请号:201911181575.7 公开号:CN110955797A 主分类号:G06F16/587
摘要:【中文】本申请提供一种用户位置确定方法、装置、电子设备及存储介质。本申请实施例提供的用户位置确定方法,包括:获取覆盖预设空间范围的目标图像,确定目标图像中用户的头部位置坐标,根据头部位置坐标以及预设映射函数确定用户的脚部位置坐标,其中,脚部位置坐标用于表征用户在预设空间范围中的物理位置。本申请实施例提供的用户位置确定方法,通过从获取到的目标图像中确定头部位置坐标,并根据预设映射函数确定头部位置坐标对应的脚部位置坐标,从而确定用户在预设空间范围内的实际物理位置,以对预设空间中的用户进行精确定位。 【EN】The application provides a user position determining method and device, electronic equipment and a storage medium. The user position determining method provided by the embodiment of the application comprises the following steps: the method comprises the steps of obtaining a target image covering a preset space range, determining head position coordinates of a user in the target image, and determining foot position coordinates of the user according to the head position coordinates and a preset mapping function, wherein the foot position coordinates are used for representing the physical position of the user in the preset space range. According to the user position determining method provided by the embodiment of the application, the head position coordinate is determined from the obtained target image, and the foot position coordinate corresponding to the head position coordinate is determined according to the preset mapping function, so that the actual physical position of the user in the preset space range is determined, and the user in the preset space is accurately positioned.
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申请号:201911347751.X 公开号:CN110966270A 主分类号:F15B11/08
申请人:【中文】燕山大学【EN】Yanshan University 申请日:2019.12.24 公开日:2020.04.07
摘要:【中文】本发明提出了一种数字电静液执行器系统,该系统包括:伺服电机与液压泵,所述伺服电机与液压泵连接;高速开关阀组,其连接液压泵;液压缸,其连接高速开关阀组,所述液压缸的活塞杆连接负载;信号处理器,其接收传感器的信号与参数;和系统状态控制单元,其连接信号处理器,根据反馈的信号或参数信息控制伺服电机、高速开关阀组的动作从而形成差动控制与负载独立控制。该系统控制自由度更大、控制精度更高、节能、动作可靠。 【EN】The invention provides a digital electro-hydrostatic actuator system, which comprises: the servo motor is connected with the hydraulic pump; the high-speed switch valve group is connected with the hydraulic pump; the hydraulic cylinder is connected with the high-speed switch valve bank, and a piston rod of the hydraulic cylinder is connected with a load; a signal processor which receives signals and parameters of the sensor; and the system state control unit is connected with the signal processor and controls the actions of the servo motor and the high-speed switch valve group according to the feedback signal or parameter information so as to form differential control and load independent control. The system has the advantages of larger control freedom degree, higher control precision, energy conservation and reliable action.
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申请号:202010103946.6 公开号:CN111206153A 主分类号:C22B7/00
摘要:【中文】本发明属于锂电池资源回收技术领域,具体涉及一种镍钴锰酸锂电池正极材料的综合回收方法,包括:(1)将镍钴锰酸锂粉料放入还原剂和酸性盐的混合溶液中,加热搅拌,反应结束后过滤得到浸出液和浸出渣;(2)加碱调节所述浸出液的pH,过滤得到溶液a和杂质;(3)采用酸溶解所述杂质与所述浸出渣得到酸性盐,将所述酸性盐返回步骤(1)循环利用;(4)在溶液a中加碱,过滤得到镍钴锰氢氧化物和溶液b;(5)在溶液b中加入锂盐沉淀剂,过滤得到锂盐和母液,所述母液返回步骤(1)循环利用。本发明的方法可以从废旧镍钴锰酸锂电池正极材料回收到锂盐和镍钴锰复合氢氧化物,实现了废旧镍钴锰酸锂电池正极材料的综合回收。 【EN】The invention belongs to the technical field of lithium battery resource recovery, and particularly relates to a comprehensive recovery method of a nickel-cobalt lithium manganate battery anode material, which comprises the following steps: (1) putting the nickel cobalt lithium manganate powder into a mixed solution of a reducing agent and an acid salt, heating and stirring, and filtering after the reaction is finished to obtain a leaching solution and leaching residues; (2) adding alkali to adjust the pH value of the leachate, and filtering to obtain a solution a and impurities; (3) dissolving the impurities and the leaching residues by using acid to obtain acid salt, and returning the acid salt to the step (1) for recycling; (4) adding alkali into the solution a, and filtering to obtain nickel-cobalt-manganese hydroxide and a solution b; (5) and (3) adding a lithium salt precipitator into the solution b, filtering to obtain lithium salt and mother liquor, and returning the mother liquor to the step (1) for recycling. The method can recover lithium salt and nickel cobalt manganese composite hydroxide from the anode material of the waste nickel cobalt manganese lithium battery, and realizes the comprehensive recovery of the anode material of the waste nickel cobalt manganese lithium battery.
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申请号:201911377783.4 公开号:CN111087963A 主分类号:C09J175/04
摘要:【中文】本发明提供了一种用于烟用卡纸复合的单组分无溶剂型湿气固化胶粘剂,包括以下重量份数的各组分:聚醚多元醇50‑70份;聚酯多元醇2‑10份;异氰酸酯20‑40份;催化剂0.05‑0.5份;噁唑烷类物质0.1‑1份。本发明提供的单组分无溶剂湿气固化胶粘剂固化过程中不会产生气泡,胶层无膨胀和缩孔现象,粘结强度明显提高;其固化时间较长,不影响产品的使用;黏度小,胶层厚度可控。 【EN】The invention provides a single-component solvent-free moisture-curing adhesive for compounding cigarette paperboard, which comprises the following components in parts by weight: 50-70 parts of polyether polyol; 2-10 parts of polyester polyol; 20-40 parts of isocyanate; 0.05-0.5 part of catalyst; 0.1-1 part of oxazolidine substances. The single-component solvent-free moisture curing adhesive provided by the invention does not generate bubbles in the curing process, the adhesive layer does not expand or shrink, and the bonding strength is obviously improved; the curing time is long, and the use of the product is not influenced; the viscosity is small, and the thickness of the glue layer is controllable.
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申请号:201911398387.X 公开号:CN111085011A 主分类号:B01D15/20
申请人:【中文】中南民族大学【EN】SOUTH-CENTRAL UNIVERSITY FOR NATIONALITIES 申请日:2019.12.30 公开日:2020.05.01
摘要:【中文】本发明涉及分子印迹磁性纳米材料制备技术领域,尤其涉及一种分子印迹磁性纳米材料的制备方法及其在γ‑氨基丁酸提纯中的应用。将具有高选择性的分子印迹技术与磁性纳米粒子相结合,成功制备了对GABA具有选择性吸附功能的分子印迹磁性纳米材料,并探究了不同制备条件和吸附条件对Fe3O4@SiO2 MIPs吸附性能的影响。结果表明:在温和的吸附条件下,制得的Fe3O4@SiO2 MIPs不仅对GABA具有较强的吸附能力,且具有较好的选择性,重复使用性能良好,将有望应用于GABA的工业生产中。 【EN】The invention relates to the technical field of preparation of molecular imprinting magnetic nano materials, in particular to a preparation method of a molecular imprinting magnetic nano material and application of the molecular imprinting magnetic nano material in purification of gamma-aminobutyric acid. The molecular imprinting technology with high selectivity is combined with the magnetic nano-particles, the molecular imprinting magnetic nano-material with selective adsorption function to GABA is successfully prepared, and Fe under different preparation conditions and adsorption conditions is explored3O4@SiO2Influence of MIPs adsorption performance. The results show that: under mild adsorption conditions, Fe is produced3O4@SiO2The MIPs not only have stronger adsorption capacity on GABA, but also have better selectivity and good reusability, and are expected to be applied to the industrial production of GABA.
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