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Real applications of quantum communications in China

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Chinese Science Bulletin 2009年第17期54卷 2976-2977页

作者： li chengzu Department of Physics National University of Defense Technology Changsha 410073 China

The first metropolitan quantum cryptography network for government administration, which is named 'Q-Government', has recently been field tested in Wuhu, Anhui Province by researchers of Key Laboratory

关键词：量子通信应用中国信息传输通道政府管理研究人员量子信息量子密码

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基于皮革毛孔分布特征的牛/羊皮革鉴别

中国纤检 2024年第4期 74-77页

作者：董改革李成族周秋成苏州市纤维检验院江苏苏州215128 东华大学纺织学院上海201620

不同种类的皮革成本与性能均不同,因此开发皮革鉴别方法是很有必要的。目前皮革种类鉴别方法往往需要复杂的设备,或者依赖测试人员的经验。对皮革的显微镜图像进行处理,确定毛孔的位置,根据牛皮革与羊皮革毛孔分布的差异,提取两个特征... 详细信息

不同种类的皮革成本与性能均不同,因此开发皮革鉴别方法是很有必要的。目前皮革种类鉴别方法往往需要复杂的设备,或者依赖测试人员的经验。对皮革的显微镜图像进行处理,确定毛孔的位置,根据牛皮革与羊皮革毛孔分布的差异,提取两个特征来区分这两种材料,之后借助线性分类器对皮革的特征数据进行训练。训练后的模型能够鉴别牛皮革与羊皮革,准确率约为89.2%。该方法仅需要光学显微镜,全程依赖图形图像算法和数据分析技术进行鉴别,不受主观因素的影响。

关键词：皮革鉴别图像处理线性分类器

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A waterproof,environment-friendly,multifunctional,and stretchable thermoelectric fabric for continuous self-powered personal health signal collection at high humidity

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SusMat 2023年第5期3卷 709-720页

作者： Xinyang He Bingyi li Jiaxin Cai Honghua Zhang chengzu li Xinxin li Jianyong Yu liming Wang Xiaohong Qin Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghaiChina Center for Civil Aviation Composites College of TextilesDonghua UniversityShanghaiChina Innovation Center for Textile Science and Technology Donghua UniversityShanghaiChina

Thermoelectric sensors have attracted increasing attention in smart wearables due to the recognition of multiple signals in self-powered ***,present thermoelectric devices show disadvantages of low durability,weak wearability,and complex preparation processes and are susceptible to moisture in the microenvironment of the human body,which hinders their further application in wearable ***,we prepared a new thermoelectric fabric with thermoplastic polyurethane/carbon nanotubes(TPU/CNTs)by combining vacuum filtration and electrospraying *** TPU microsphere coating with good biocompatibility and environmental friendliness made the fabric worn directly and exhibits preferred water resistance,mechanical durability,and stability even after being bent 4000 times,stretched 1000 times,and washed 1000 ***,this fabric showed a Seebeck coefficient of 49μVK−1 and strain range of 250%and could collect signals well and avoided interference from *** on the biocompatibility and safety of the fabric,it can be fabricated into devices and mounted on the human face and elbow for long-term and continuous collection of data on the body’s motion and breathing simultaneously to provide collaborative support *** thermoelectric fabric-based sensor will show great potential in advanced smart wearables for health monitoring,motion detection,and human–computer interaction.

关键词： biocompatibility health monitor self-powered sensing thermoelectric fabrics waterproof

Three-Dimensional Model Reconstruction of Nonwovens from Multi-Focus Images

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Journal of Donghua University(English Edition) 2022年第3期39卷 185-192页

作者： DONG Gaige WANG Rongwu li chengzu YOU Xiangyin College of Textiles Donghua University Shanghai 201620 China Jiangsu liyang New Material Co. Ltd. Nantong 226004 China

The three-dimensional(3D)model is of great significance to analyze the performance of ***,the existing modelling methods could not reconstruct the 3D structure of nonwovens at low cost.A new method based on deep learning was proposed to reconstruct 3D models of nonwovens from multi-focus images.A convolutional neural network was trained to extract clear fibers from sequence *** processing algorithms were used to obtain the radius,the central axis,and depth information of fibers from the extraction *** on this information,3D models were built in 3D ***,self-developed algorithms optimized the central axis and depth of fibers,which made fibers more realistic and *** method with lower cost could reconstruct 3D models of nonwovens conveniently.

关键词： three-dimensional(3D)model reconstruction deep learning microscopy nonwoven image processing

Additives strategies to improving cycling stability of li metal batteries by modifying electrode electrolyte interphases

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Progress in Natural Science:Materials International 2024年第2期34卷 338-344页

作者： Yuan li Pengfei Huang Chunyu Cui Xiaoyuan Ma li Chen Zekun li linhai li Yuhong Tian School of Biological and Chemical Engineering Guangxi University of Science and Technology School of College of Chemistry and Chemical Engineering Hunan University Isky Future Energy Institute

li metal batteries（LMBs） have attracted much attention due to the ultra-high theoretical capacity of the li metal anode（LMA）.However,the uncontrollable dendrites growth and low coulombic efficiency hinder their practical ***,we explore 3,5-difluoropyridine（2F-BD） as a novel electrolyte additive to enable highperformance *** 2F-BD additive participates in and modifies the solvation structure of li ions by reducing the coordinated number of PF6-at the electrode surface,leading to the formation of a liF and li3N-rich solid electrolyte interphase（SEI）.The liF component increases the robustness of SEI and suppresses the formation of li dendrites,while the li3N component facilitates the transportation and reaction kinetics of li *** a result,the li‖li symmetric cell presents a stable cycling performance of up to 500 h at a current density of 1 mA *** coupling with liFePO4cathode,the obtained full cell achieves high specific capacities of 106.06 mA h g-1and 84.98 mA h g-1at 2.55 mA cm-2and 5.10 mA cm-2,respectively,and maintains a high capacity retention of84.0% after 1000 cycles at 0.13 mA cm-2,with an average cycling CE of 99.58%.

关键词： Electrolyte additive li dendrites li metal batteries liF and li3N-Rich electrode-electrolyte interphase liFePO4 cathode

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论中医医院中药房的科学管理

光明中医 2012年第5期27卷 1042-1044页

作者：李承祖山西省孝义市中医院孝义032300

目的探索科学管理中药房的方法,为临床提供质优、安全的中药饮片。方法从硬件建设、人员管理、中药饮片质量管理、完善各项综合考核制度四方面总结分析我院管理中药房的科学方法。结果与结论转变观念,科学管理中药房,加强硬件建设、努... 详细信息

目的探索科学管理中药房的方法,为临床提供质优、安全的中药饮片。方法从硬件建设、人员管理、中药饮片质量管理、完善各项综合考核制度四方面总结分析我院管理中药房的科学方法。结果与结论转变观念,科学管理中药房,加强硬件建设、努力提高从业人员素质、依法管理中药饮片,更好地发挥中药在临床的独特疗效。

关键词：中药房科学管理中药饮片质量

Leaching kinetics of fluorine during the aluminum removal from spent li-ion battery cathode materials

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Journal of Environmental Sciences 2024年第4期138卷 312-325页

作者： Shengjie li Jianxin Zhu Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

The high content of aluminum(Al)impurity in the recycled cathode powder seriously affects the extraction efficiency of Nickel,Cobalt,Manganese,and lithium resources and the actual commercial value of recycled materials,so Al removal is crucially important to conform to the industrial standard of spent li-ion battery cathode *** this work,we systematically investigated the leaching process and optimum conditions associated with Al removal from the cathode powder materials collected in a wet cathode-powder peeling and recycling production line of spent li-ion batteries(liBs).Moreover,we specifically studied the leaching of fluorine(F)synergistically happened along with the removal process of Al,which was not concerned about in other studies,but one of the key factors affecting pollution prevention in the recovery *** mechanism of the whole process including the leaching of Al and F from the cathode powder was indicated by using NMR,FTIR,and XPS,and a defluoridation process was preliminarily investigated in this *** leaching kinetics of Al could be successfully described by the shrinking core model,controlled by the diffusion process and the activation energy was 11.14 kJ/***,the leaching of F was attributed to the dissolution of liPF6and decomposition of PVDF,and the kinetics associated was described by Avrami *** interaction of Al and F is advantageous to realize the defluoridation to some *** is expected that our investigation will provide theoretical support for the large-scale recycling of spent liBs.

关键词： Al removal F leaching Cathode powder Heating alkali leaching Leaching kinetics