摘要：【中文】本发明公开了一种聚乙烯树脂及其制备方法。该聚乙烯树脂分子链中含有的环戊二烯基团之间能够通过Diels‑Alder反应，在聚乙烯树脂中形成交联网络，提高材料力学性能；该聚合物又可以通过高温时发生的逆向Diels‑Alder反应而解交联，使材料具有热塑性；其降温后可以再次交联产生网络结构。 【EN】The invention discloses a polyethylene resin and a preparation method thereof. Cyclopentadiene groups contained in a polyethylene resin molecular chain can form a cross-linked network in the polyethylene resin through a Diels-Alder reaction, so that the mechanical property of the material is improved; the polymer can be uncrosslinked through reverse Diels-Alder reaction generated at high temperature, so that the material has thermoplasticity; which can be crosslinked again to produce a network structure after cooling.

摘要：【中文】本发明涉及一种用于激光‑机械破岩的光气混合筒装置，主要由通气孔、镜组安放室、固定螺纹孔、锥螺纹、扳手卡口、混合筒本体、连接螺纹孔、混合室及扭矩传递槽组成。镜组安放室内的光学镜组将传来的圆形激光束整形为矩形激光束，输入混合室中，与经通气孔进入混合室的压缩空气汇聚，传入下方组件。混合室位于镜组安放室下方，避免了空气中的杂质与镜组接触。光气混合筒与钻头通过螺栓连接，确保矩形激光束与钻头的矩形出光槽对齐。扳手卡口位于混合筒本体两侧，便于混合筒的拆装。扭矩传递槽位于底部，带动钻头一起旋转。本发明将整形前的圆形激光束与压缩空气分隔开，将整形后的矩形激光束与压缩空气汇聚，避免空气与镜组接触。 【EN】The invention relates to a phosgene mixing barrel device for laser-mechanical rock breaking, which mainly comprises an air vent, a lens group placing chamber, a fixed threaded hole, a taper thread, a wrench bayonet, a mixing barrel body, a connecting threaded hole, a mixing chamber and a torque transmission groove. The optical lens group in the lens group placing chamber shapes the transmitted round laser beam into a rectangular laser beam, and the rectangular laser beam is input into the mixing chamber, converged with the compressed air entering the mixing chamber through the vent hole and transmitted into the lower component. The mixing chamber is positioned below the lens group placing chamber, so that the contact between impurities in the air and the lens group is avoided. The phosgene mixing cylinder is connected with the drill bit through a bolt, and the rectangular laser beam is ensured to be aligned with the rectangular light-emitting groove of the drill bit. The spanner bayonet socket is located mixing drum body both sides, the dismouting of the mixing drum of being convenient for. The torque transmission groove is positioned at the bottom and drives the drill bit to rotate together. The invention separates the round laser beam before shaping from the compressed air, and converges the rectangular laser beam after shaping with the compressed air, thereby avoiding the contact of the air and the lens group.

摘要：【中文】本发明涉及图像处理技术领域，具体涉及一种医疗器械图像检测方法及装置。为了解决现有技术难以准确识别医疗图像中医疗器械的问题，本发明提出一种医疗器械图像检测方法，包括基于预先获取的原始医疗图像，通过预设的图像增强模型获取与所述原始医疗图像对应的增强医疗图像；基于所述增强医疗图像，通过预设的目标检测模型中的特征提取网络提取所述增强医疗图像的图像特征；基于所述增强医疗图像的图像特征，通过所述目标检测模型中的标记定位网络获取多个目标标记框；基于多个所述目标标记框，通过所述目标检测模型的目标检测网络获取所述增强医疗图像中医疗器械的位置和类别。本发明的方法能够准确识别医疗图像中医疗器械。 【EN】The invention relates to the technical field of image processing, in particular to a medical instrument image detection method and device. In order to solve the problem that the medical instrument in the medical image is difficult to accurately identify in the prior art, the invention provides a medical instrument image detection method, which comprises the steps of obtaining an enhanced medical image corresponding to an original medical image through a preset image enhancement model based on the original medical image obtained in advance; extracting image features of the enhanced medical image through a feature extraction network in a preset target detection model based on the enhanced medical image; acquiring a plurality of target mark frames through a mark positioning network in the target detection model based on the image characteristics of the enhanced medical image; and acquiring the position and the category of the medical instrument in the enhanced medical image through a target detection network of the target detection model based on the plurality of target mark frames. The method of the invention can accurately identify the medical instrument in the medical image.

摘要：【中文】本发明涉及材料的疲劳寿命试验方法，具体涉及一种可同时进行普通疲劳和两种不同接触类型（共形接触和非共形接触）的微动疲劳的混合型疲劳试验方法。本发明的混合型疲劳试验装置，包括夹头、试件、销轴和卡簧，所述试件的长度方向的两端分别开设有一个燕尾形通孔和一个圆形通孔；本发明将普通疲劳试件和两种不同接触类型的微动疲劳试件集于一身，通过单次试验完成混合型疲劳试验；通过辅助校正装置用于对所述试件的精确定位和校形；本发明能模拟实际构件服役过程中所承受的弯曲载荷，较精确的复现构件的普通疲劳和微动疲劳现象，减小疲劳试验结果的分散性，提高试验的合理性和科学性。 【EN】The invention relates to a fatigue life test method of a material, in particular to a hybrid fatigue test method capable of simultaneously carrying out common fatigue and fretting fatigue of two different contact types (conformal contact and non-conformal contact). The mixed type fatigue test device comprises a chuck, a test piece, a pin shaft and a clamp spring, wherein a dovetail-shaped through hole and a circular through hole are respectively formed in two ends of the test piece in the length direction; the invention integrates a common fatigue test piece and two fretting fatigue test pieces with different contact types, and completes a mixed fatigue test through a single test; the auxiliary correction device is used for accurately positioning and correcting the test piece; the invention can simulate the bending load born by the actual component in the service process, more accurately reproduce the common fatigue and fretting fatigue phenomena of the component, reduce the dispersion of the fatigue test result and improve the rationality and scientificity of the test.

摘要：【中文】本发明公开了一种基于图像识别技术的红外检测数据自动采集工具，其包括：红外图像采集模块、基站设备和远程分析终端；通过设置在监测区域内的红外图像采集模块采集各电力设备的红外图像，经由基站设备转发至远程分析终端，由远程分析终端根据采集的红外图像对监测区域内的各电力设备的运行状态进行分析，进而能够及时了解到各电力设备的运行状态，一旦电力设备工作异常，该远程分析终端会输出预警信息，便于维护人员能够及早采取措施，避免恶性后果，确保电网安全可靠地运行。且该红外图像采集模块提前部署于各电力设备附近，无需维护人员进入现场对电力设备进行检修，节约了人力成本。 【EN】The invention discloses an infrared detection data automatic acquisition tool based on an image recognition technology, which comprises: the system comprises an infrared image acquisition module, base station equipment and a remote analysis terminal; the infrared image acquisition module arranged in the monitoring area acquires the infrared image of each power device, the infrared image is forwarded to the remote analysis terminal through the base station device, the remote analysis terminal analyzes the running state of each power device in the monitoring area according to the acquired infrared image, and then the running state of each power device can be known in time. And the infrared image acquisition module is arranged near each power device in advance, so that maintenance personnel do not need to enter the site to overhaul the power devices, and the labor cost is saved.

摘要：【中文】本发明公开了一类新型硫化剂及其在聚合物中的应用，该硫化剂在聚合物加工时加入，可在聚合物中形成交联网络，提高材料力学性能；同时该交联剂在高温时又可使聚合物材料解交联，其降温后可再次交联产生网络结构，赋予聚合物材料反复加工的热塑性。本发明的硫化剂可解决高分子材料交联增强和回收利用的矛盾。 【EN】The invention discloses a novel vulcanizing agent and application thereof in polymers, wherein the vulcanizing agent is added during the processing of the polymers, so that a cross-linked network can be formed in the polymers, and the mechanical property of the materials is improved; meanwhile, the cross-linking agent can enable the polymer material to be de-cross-linked at high temperature, and can be cross-linked again to generate a network structure after being cooled, so that the polymer material is endowed with thermoplasticity through repeated processing. The vulcanizing agent of the invention can solve the contradiction between crosslinking enhancement and recycling of high polymer materials.

摘要：【中文】本发明公开了一种中煤磁选尾矿回收设备及其工艺，所述中煤磁选尾矿回收设备包括中矸磁尾矿桶和精磁尾矿桶，所述中矸磁尾矿桶通过管道连通中煤磁选尾矿管，所述中煤磁选尾矿管一端连通矸石磁选尾矿管，所述精磁尾矿桶一侧通过管道连通所述精煤磁选尾矿管的中部，精磁尾矿桶一侧安装有引流管道，引流管道另一端连通中煤磁选尾矿管。本发明可以有效提高提高精煤灰分，提高精煤产率，给企业带来更好的综合效益。 【EN】The invention discloses middling magnetic separation tailing recovery equipment and a process thereof, wherein the middling magnetic separation tailing recovery equipment comprises a middling magnetic tailing bucket and a fine magnetic tailing bucket, the middling magnetic tailing bucket is communicated with a middling magnetic separation tailing pipe through a pipeline, one end of the middling magnetic separation tailing pipe is communicated with the gangue magnetic separation tailing pipe, one side of the fine magnetic tailing bucket is communicated with the middle part of the fine magnetic separation tailing pipe through a pipeline, a drainage pipeline is installed on one side of the fine magnetic tailing bucket, and the other end of the drainage pipeline is communicated with the middling magnetic separation tailing pipe. The invention can effectively improve the ash content of the clean coal, improve the yield of the clean coal and bring better comprehensive benefits to enterprises.