当前查询到85条专利与查询词 "Li Xuehua"相关,搜索用时0.3906383秒!排序方式:
发明专利:40实用新型: 40外观设计: 5
40 条,当前第 1-10 条 下一页 最后一页 返回搜索页
申请号:201911081804.8 公开号:CN110853701A 主分类号:G16B5/00
申请人:【中文】大连理工大学【EN】DALIAN UNIVERSITY OF TECHNOLOGY 申请日:2019.11.07 公开日:2020.02.28
摘要:【中文】本发明属于化学品生态风险评价的高通量测试策略技术领域,公开了一种采用多参数线性自由能关系模型预测有机化合物的鱼类生物富集因子的方法。搜索所需Abraham溶质参数描述符,应用所构建的pp‑LFERs模型,即能快速、高效地预测有机化合物的鱼类生物富集因子,该方法简单快捷、成本低,且能节省所需的人力、物力和财力。本发明关于定量构效关系模型的构建和使用导则进行建模,运用简单、透明的多元线性回归分析方法,易于理解和应用;具有明确的应用域、良好的拟合能力、稳健性和预测能力,能够有效地预测应用域内有机化合物的鱼类生物富集因子,为化合物的生态风险性评价和管理提供必要的基础数据,具有重要的意义。 【EN】The invention belongs to the technical field of high-throughput testing strategies for ecological risk evaluation of chemicals, and discloses a method for predicting fish biological enrichment factors of organic compounds by adopting a multi-parameter linear free energy relation model. The method is simple, fast and low in cost, and can save required manpower, material resources and financial resources. The invention relates to the construction of a quantitative structure-activity relationship model and modeling by using a guide rule, and a simple and transparent multivariate linear regression analysis method is applied, so that the model is easy to understand and apply; the method has a clear application domain, good fitting ability, robustness and prediction ability, can effectively predict the fish biological enrichment factor of the organic compound in the application domain, provides necessary basic data for ecological risk evaluation and management of the compound, and has important significance.
详细信息 下载全文

申请号:201911226073.1 公开号:CN110924900A 主分类号:E21B43/00
申请人:【中文】中国矿业大学【EN】China University of Mining and Technology 申请日:2019.12.04 公开日:2020.03.27
摘要:【中文】本发明公开了一种水力‑液氮复合均匀压裂煤体的方法,具体步骤是:在选定的采掘巷道巷帮施工水平压裂钻孔,封孔并分别连接水力压裂系统和液氮压裂系统;通过水力压裂控制操作台开启对煤体水力压裂的总控制,水力压裂过程分为两个阶段,第一阶段为常规水力压裂阶段,第二阶段为含砂水力压裂阶段;待水力压裂过程结束后,立即通过液氮压裂控制操作台开启对煤体的液氮冰冻致裂;每个压裂钻孔压裂结束48小时后,进行下一个压裂钻孔的水力压裂和液氮压裂,直到完成最后一个压裂钻孔的压裂。 【EN】The invention discloses a method for uniformly fracturing coal bodies by combining waterpower and liquid nitrogen, which comprises the following specific steps: constructing horizontal fracturing drill holes on the selected excavation roadway sides, sealing the holes and respectively connecting a hydraulic fracturing system and a liquid nitrogen fracturing system; starting the main control of the hydraulic fracturing of the coal body through a hydraulic fracturing control operation console, wherein the hydraulic fracturing process is divided into two stages, the first stage is a conventional hydraulic fracturing stage, and the second stage is a sand-containing hydraulic fracturing stage; after the hydraulic fracturing process is finished, immediately starting the liquid nitrogen freezing fracturing on the coal body through a liquid nitrogen fracturing control operation console; and after 48 hours of fracturing of each fracturing drill hole, performing hydraulic fracturing and liquid nitrogen fracturing on the next fracturing drill hole until the fracturing of the last fracturing drill hole is completed.
详细信息 下载全文

申请号:201911139387.8 公开号:CN110910970A 主分类号:G16C20/70
申请人:【中文】大连理工大学【EN】DALIAN UNIVERSITY OF TECHNOLOGY 申请日:2019.11.20 公开日:2020.03.24
摘要:【中文】本发明公开一种通过建立QSAR模型预测化学品以斑马鱼胚胎为受体的毒性的方法。在已知化合物分子结构的基础上,仅通过计算具有结构特征的分子描述符,应用所构建的QSAR模型,即能快速、高效地预测化合物的以斑马鱼胚胎为受体的半数致死浓度,该方法简单快捷、成本低,且能节省实验测试所需的人力、物力和财力。本发明依据经济合作与发展组织关于QSAR模型的构建和使用导则进行建模,运用简单、透明的多元线性回归分析方法,易于理解和应用;具有明确的应用域、良好的拟合能力、稳健性和预测能力,能够有效地预测应用域内化合物的以斑马鱼胚胎为受体的半数致死浓度,为化合物的生态风险性评价和管理提供必要的基础数据,具有重要的意义。 【EN】The invention discloses a method for predicting the toxicity of chemicals taking zebra fish embryos as receptors by establishing a QSAR model. On the basis of the known compound molecular structure, the established QSAR model is applied only by calculating the molecular descriptor with the structural characteristics, so that the half lethal concentration of the compound taking the zebra fish embryo as a receptor can be rapidly and efficiently predicted. The modeling is carried out according to the construction and use guide rules of the QSAR model of the economic cooperation and development organization, and a simple and transparent multivariate linear regression analysis method is applied, so that the QSAR model is easy to understand and apply; the method has a definite application domain, good fitting capability, robustness and prediction capability, can effectively predict the half lethal concentration of the compound in the application domain by taking the zebra fish embryo as a receptor, provides necessary basic data for ecological risk evaluation and management of the compound, and has important significance.
详细信息 下载全文

申请号:201911053558.5 公开号:CN110966880A 主分类号:F28D15/02
摘要:【中文】本发明公开了一种超薄均热板及其制造方法,在第一盖板上加工第一凹槽与第一加强筋,第二盖板上加工第二凹槽和第二加强筋,第一加强筋与第二加强筋能够对称连接;在第一盖板或第二盖板的内表面附上吸液芯后,将第一盖板与第二盖板互相贴合,形成腔体;将第一盖板和第二盖板的边缘以及第一加强筋与第二加强筋焊接,通过预留的注料口向腔体内部注入工质,并抽真空后将注料口密封得超薄均热板。本发明可以保证均热板的立体结构,增强均热板的力学性能,防止发生形变;另外双侧加强筋设计起到强化粘结上下盖板的作用,从而避免出现鼓包现象,提高产品品质和良品率。 【EN】The invention discloses an ultrathin soaking plate and a manufacturing method thereof.A first groove and a first reinforcing rib are processed on a first cover plate, a second groove and a second reinforcing rib are processed on a second cover plate, and the first reinforcing rib and the second reinforcing rib can be symmetrically connected; attaching a wick to the inner surface of the first cover plate or the second cover plate, and then attaching the first cover plate and the second cover plate to each other to form a cavity; and welding the edges of the first cover plate and the second cover plate and the first reinforcing ribs and the second reinforcing ribs, injecting working medium into the cavity through the reserved injection port, and sealing the injection port after vacuumizing to obtain the ultrathin soaking plate. The invention can ensure the three-dimensional structure of the soaking plate, enhance the mechanical property of the soaking plate and prevent the soaking plate from deforming; in addition, the reinforcing ribs on the two sides are designed to play a role in strengthening and bonding the upper cover plate and the lower cover plate, so that the bulging phenomenon is avoided, and the product quality and the yield are improved.
详细信息 下载全文

申请号:202010023363.2 公开号:CN111064316A 主分类号:H02K7/116
摘要:【中文】本发明公开了一种电机用新型谐波齿轮箱结构,包括外壳,外壳底部设置有轴承一,外壳内部的中间位置设置有电机定子,外壳顶部和内部靠下的位置均安装有轴承二,轴承一的中心安装有输出轴,轴承二的中心安装有电机轴,电机轴外侧位于电机定子内侧的位置设置有磁铁,外壳内部的中间位置安装有横杆,横杆内侧的位置安装有弹簧,弹簧位于电机轴外侧,本发明涉及减速电机组件技术领域。该电机用新型谐波齿轮箱结构,注塑软片的位移变化以及注塑软片与垫片的摩擦力,达到常规齿轮箱的效果,新的结构设计的谐波齿轮箱用于电机上,相对于传统的减速机构来说,本装置有体积小,噪音低,单级减速比大,成本低,装配简单。 【EN】The invention discloses a novel harmonic gear box structure for a motor, which comprises a shell, wherein a first bearing is arranged at the bottom of the shell, a motor stator is arranged at the middle position in the shell, a second bearing is arranged at the top of the shell and at the position close to the lower part in the shell, an output shaft is arranged at the center of the first bearing, a motor shaft is arranged at the center of the second bearing, a magnet is arranged at the position, located on the inner side of the motor stator, on the outer side of the motor shaft, a cross rod is arranged at the middle position in the shell, a spring is arranged at the position, located on the inner side of. This motor is with novel harmonic gear box structure, the displacement of the film of moulding plastics changes and the frictional force of the film of moulding plastics and gasket, reaches the effect of conventional gear box, and on new structural design's harmonic gear box was used for the motor, for traditional reduction gears, this device had small, and the noise is low, and single-stage reduction ratio is big, and is with low costs, assembles simply.
详细信息 下载全文

申请号:201911347332.6 公开号:CN111029552A 主分类号:H01M4/36
摘要:【中文】本发明公开了一种高电压高倍率钴酸锂正极材料及其制备方法,钴酸锂材料表面导电氧化物的包覆在一定程度上阻止了钴酸锂本体材料和电解液的直接接触,抑制了电解液在高电压下的氧化的副反应,从而提升了钴酸锂界面在高电压下的稳定性,改善了材料的循环稳定性。此外,将钴酸锂材料表面通过导电氧化物进行包覆,颗粒表面形成的导电网络通过导电剂与集流体相连提升了钴酸锂颗粒表面的电子导电率,增加了电化学反应的活性面积,降低了其传荷阻抗,从而增加了充放电时的电化学反应活性;更重要的是,按特定比例得到的复合导电氧化物包覆层由于离子间化学键合力将导致这种复合包覆层具有更稳定的结构,有利于提升材料的倍率性能和稳定性。 【EN】The invention discloses a high-voltage high-rate lithium cobaltate cathode material and a preparation method thereof, wherein a conductive oxide on the surface of the lithium cobaltate material is coated to prevent direct contact between a lithium cobaltate body material and an electrolyte to a certain extent, and a side reaction of oxidation of the electrolyte under high voltage is inhibited, so that the stability of a lithium cobaltate interface under high voltage is improved, and the cycling stability of the material is improved. In addition, the surface of the lithium cobaltate material is coated by the conductive oxide, and a conductive network formed on the surface of the particle is connected with the current collector through the conductive agent, so that the electronic conductivity of the surface of the lithium cobaltate particle is improved, the active area of electrochemical reaction is increased, and the load transfer impedance of the electrochemical reaction is reduced, thereby increasing the electrochemical reaction activity during charging and discharging; more importantly, the composite conductive oxide coating layer obtained according to a specific proportion has a more stable structure due to the chemical bonding force among ions, and the rate capability and the stability of the material are favorably improved.
详细信息 下载全文

申请号:201911124673.7 公开号:CN110956313A 主分类号:G06Q10/04
申请人:【中文】大连理工大学【EN】DALIAN UNIVERSITY OF TECHNOLOGY 申请日:2019.11.18 公开日:2020.04.03
摘要:【中文】本发明提供了预测有机污染物植物角质层与水之间分配系数的方法,属于污染物环境暴露预测技术领域。本发明采用逐步多元线性回归的方法建立了预测有机污染物植物角质层‑水分配系数logKcw的多参数线性自由能关系pp‑LFER模型,并进行模型验证与应用域表征。所构建的预测模型具有良好的线性拟合度、稳健性和预测能力,且应用域明确;该方法高效且经济,同时可节省实验测定logKcw所需的人力和时间;此外,本发明所构建的模型可用于补充新化合物logKcw的缺失值,为有机污染物在植物体内的生物累积及其生态风险评价提供依据。 【EN】The invention provides a method for predicting a distribution coefficient between a plant cuticle and water of an organic pollutant, belonging to the technical field of pollutant environment exposure prediction. The invention adopts a stepwise multiple linear regression method to establish a logK for predicting the plant cuticle-water distribution coefficient of organic pollutantscwThe pp-LFER model is subjected to multi-parameter linear free energy relationship, and model verification and application domain characterization are carried out. The constructed prediction model has good linear fitting degree, robustness and prediction capability, and the application domain is clear; the method is efficient and economical, and can save experimental determination of logKcwThe manpower and time required; in addition, the model constructed by the invention can be used for supplementing the novel compound logKcwThe deletion value of (A) provides a basis for the biological accumulation of organic pollutants in the plant body and the ecological risk evaluation of the organic pollutants.
详细信息 下载全文

申请号:201911331466.9 公开号:CN110961123A 主分类号:B01J27/057
申请人:【中文】青岛科技大学【EN】Qingdao University Of Science And Technology 申请日:2019.12.21 公开日:2020.04.07
摘要:【中文】本发明公开了一种水热法制备的全固态直接Z型ZnIn2S4‑MoSe2高效光催化剂,属于半导体光催化技术领域。首先通过水热法制备出ZnIn2S4,再将其与市售Na2MoO4·2H2O共同分散到水溶液中得到ZnIn2S4与Na2MoO4的混合分散液;之后将溶于水合肼的Se粉溶液加入到上述混合分散液中,混合均匀后转入反应釜,在220~260℃下水热反应4~6小时,离心,洗涤,干燥产物后得到全固态直接Z型ZnIn2S4‑MoSe2高效光催化剂。该光催化剂表现出优异的光解水制氢性能,在可见光照射下,光催化产氢效率高达50000~55000μmol·g‑1·h‑1。 【EN】The invention discloses an all-solid-state direct Z-type ZnIn prepared by a hydrothermal method2S4‑MoSe2A high-efficiency photocatalyst belongs to the technical field of semiconductor photocatalysis. Firstly, ZnIn is prepared by a hydrothermal method2S4Then, the obtained product is mixed with commercially available Na2MoO4·2H2The O is jointly dispersed into the aqueous solution to obtain ZnIn2S4With Na2MoO4The mixed dispersion of (4); then adding a Se powder solution dissolved in hydrazine hydrate into the mixed dispersion liquid, uniformly mixing, transferring into a reaction kettle, carrying out hydrothermal reaction for 4-6 hours at 220-260 ℃, centrifuging, washing, and drying the product to obtain a total productSolid direct Z-type ZnIn2S4‑MoSe2High-efficiency photocatalyst. The photocatalyst shows excellent performance of hydrogen production by water photolysis, and the photocatalytic hydrogen production efficiency is as high as 50000-55000 mu mol-g under the irradiation of visible light‑1·h‑1
详细信息 下载全文

申请号:201911363891.6 公开号:CN111195362A 主分类号:A61L2/18
摘要:【中文】本发明公开了一种牙科医疗床用全自动消毒装置及其消毒方法,全自动消毒装置包括消毒单元、气路单元、水路单元和功能单元;本发明创造的使用方法包括如下步骤:启动消毒,将消毒模块与水路单元连通,使消毒模块的消毒流体遍历水路单元的管路进行消毒;消毒完成后,关闭消毒电磁阀,再开启清洗机构持续对水路单元进行清洗,接着用干燥机构持续向水路单元管道输入气体,对水路单元的内壁进行干燥;本发明创造的干燥机构与气路单元连通,将气路单元内的气体引入水路单元,并对水路单元的管路持续输送气体以带走留存水和水气。 【EN】The invention discloses a full-automatic disinfection device for a dental medical bed and a disinfection method thereof, wherein the full-automatic disinfection device comprises a disinfection unit, an air path unit, a water path unit and a functional unit; the use method of the invention comprises the following steps: starting disinfection, communicating the disinfection module with the waterway unit, and enabling the disinfection fluid of the disinfection module to traverse the pipeline of the waterway unit for disinfection; after the disinfection is finished, closing the disinfection electromagnetic valve, opening the cleaning mechanism to continuously clean the waterway unit, and continuously inputting gas to the waterway unit pipeline by using the drying mechanism to dry the inner wall of the waterway unit; the drying mechanism is communicated with the air path unit, introduces air in the air path unit into the water path unit, and continuously conveys the air to a pipeline of the water path unit to take away retained water and water vapor.
详细信息 下载全文

申请号:201911366782.X 公开号:CN111060912A 主分类号:G01S13/95
摘要:【中文】本发明公开了一种天气雷达速调管仿真的方法,包括:通过对天气雷达速调管组件的外设接口和配置参数进行设计,确定所述天气雷达速调管对外的信号接口和参数;通过建立多个数学关系式,确定所述天气雷达速调管射频输出信号与射频输入信号之间的放大关系。 【EN】The invention discloses a method for simulating a weather radar klystron, which comprises the following steps: the method comprises the steps that an external interface and configuration parameters of a weather radar klystron assembly are designed, and an external signal interface and parameters of the weather radar klystron assembly are determined; and determining the amplification relation between the radio frequency output signal and the radio frequency input signal of the weather radar klystron by establishing a plurality of mathematical relational expressions.
详细信息 下载全文

40 条,当前第 1-10 条 下一页 最后一页 返回搜索页