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Progress in Natural Science:Materials International 2023年第6期33卷 881-890页

作者： Ziming Wang Hanbo Wang dongyu pei Sheng Wan Zhitian Fan Mingrui Yu Haiyan Lu College of Chemistry Jilin University Key Laboratory of Physics and Technology for Advanced Batteries Ministry of Education Jilin University Zhuhai Zhongli New Energy Sci-Tech Co. Ltd.

MnO2stands out as a highly promising material for electrochemical capacitors due to its impressive theoretical capacitance,cost-effectiveness,eco-friendliness,and abundant natural ***,its inherent low conductivity and structural fragility result in restricted specific capacitance and a shortened cycle life,posing a notable obstacle to its *** the introduction of CTAB(cetyltrimethylammonium bromide),we successfully tailored the surface morphology of the electrode material,yielding a robust and highly conductive layered MnO2electrode *** MnO2/CTAB composite synthesized through a simple electrodeposition method exhibits outstanding performance,achieving a specific capacitance of 665 F g-1at 1 A *** after30,000 cycles,it maintains 92.13% *** performance improvement is primarily attributed to increased conductivity,and additional electrochemically active ***,the assembled MnO2/CTAB//AC capacitor(ACs) achieves a specific capacitance of 70.06 F g-1at 1 A g-1,operating at a voltage of 1.8 *** a power density of 563.36 W kg-1,it reaches an energy density of 35.21 Wh *** work provides an effective approach for high-performance electrode of supercapacitor.

关键词： Manganese dioxide CTAB Asymmetric capacitor Electrodeposition

RSPSSL:A novel high-fidelity Raman spectral preprocessing scheme to enhance biomedical applications and chemical resolution visualization

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Light(Science & Applications) 2024年第2期13卷 366-386页

作者： Jiaqi Hu Gina Jinna Chen Chenlong Xue pei Liang Yanqun Xiang Chuanlun Zhang Xiaokeng Chi Guoying Liu Yanfang Ye dongyu Cui De Zhang Xiaojun yu Hong Dang Wen Zhang Junfan Chen Quan Tang Penglai Guo Ho-Pui Ho Yuchao Li Longqing Cong Perry Ping Shum State Key Laboratory of Optical Fiber and Cable Manufacture Technology Guangdong Key Laboratory of Integrated Optoelectronics IntellisenseDepartment of EEESouthern University of Science and TechnologyShenzhen 518055China College of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018China Department of Nasopharyngeal Carcinoma Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapyGuangzhou 510060China Department of Ocean Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Nephrology Chaozhou People’s HospitalChaozhou 521011China Clinical Research Design Division Sun Yatsen Memorial HospitalGuangzhouGuangdong 510120China School of Automation Northwestern Polytechnical UniversityXi’anShaanxi 710072China Department of Biomedical Engineering The Chinese University of Hong KongHong KongChina Guangdong Provincial Key Laboratory of Nanophotonic Manipulation Institute of NanophotonicsJinan UniversityGuangzhou 511443China

Raman spectroscopy has tremendous potential for material analysis with its molecular fingerprinting capability in many branches of science and *** is also an emerging omics technique for metabolic profiling to shape precision ***,precisely attributing vibration peaks coupled with specific environmental,instrumental,and specimen noise is *** Raman spectral preprocessing to remove statistical bias noise and sample-related errors should provide a powerful tool for valuable information ***,we propose a novel Raman spectral preprocessing scheme based on self-supervised learning(RSPSSL)with high capacity and spectral *** can preprocess arbitrary Raman spectra without further training at a speed of~1900 spectra per second without human *** experimental data preprocessing trial demonstrated its excellent capacity and signal fidelity with an 88%reduction in root mean square error and a 60%reduction in infinite norm(L__(∞))compared to established *** this advantage,it remarkably enhanced various biomedical applications with a 400%accuracy elevation(ΔAUC)in cancer diagnosis,an average 38%(few-shot)and 242%accuracy improvement in paraquat concentration prediction,and unsealed the chemical resolution of biomedical hyperspectral images,especially in the spectral fingerprint *** precisely preprocessed various Raman spectra from different spectroscopy devices,laboratories,and diverse *** scheme will enable biomedical mechanism screening with the label-free volumetric molecular imaging tool on organism and disease metabolomics profiling with a scenario of high throughput,cross-device,various analyte complexity,and diverse applications.

关键词： spectral scheme resolution

经额入路神经内镜手术在慢性硬膜下血肿治疗中的应用

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中国内镜杂志 2024年第1期30卷 1-6页

作者：龚益杨文魁陈沛翟冬煜云南省第三人民医院神经外科云南昆明650011

目的评价经额入路神经内镜手术治疗慢性硬膜下血肿(CSDH)的疗效。方法分析80例CSDH病例的临床资料,依据手术方式,分为传统顶结节钻孔外引流术组(钻孔引流组,n=40),以及经额入路神经内镜下小骨窗血肿清除术组(神经内镜组,n=40),比较两组... 详细信息

目的评价经额入路神经内镜手术治疗慢性硬膜下血肿(CSDH)的疗效。方法分析80例CSDH病例的临床资料,依据手术方式,分为传统顶结节钻孔外引流术组(钻孔引流组,n=40),以及经额入路神经内镜下小骨窗血肿清除术组(神经内镜组,n=40),比较两组患者治疗有效率、术后1个月血肿复发率、手术时间和术中出血量。结果神经内镜组治疗有效率为95.0%,明显高于钻孔引流组的75.0%,神经内镜组术后1个月血肿复发率为5.0%,明显低于钻孔引流组的25.0%,神经内镜组手术时间为(54.1±7.5)min,较钻孔引流组的(40.7±9.4)min长,差异均有统计学意义(P0.05)。结论采用经额入路神经内镜手术治疗CSDH,能明显提高手术疗效,且术后血肿复发率极低。值得应用于临床。

关键词：慢性硬膜下血肿神经内镜经额入路钻孔引流术手术

Microstructure of Ba_(0.615)Sr_(0.35)Mg_(0.035)TiO_3 dielectric ceramics via X-ray spectrum analysis

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Chinese Science Bulletin 2012年第34期57卷 4510-4512页

作者： QI Wen XUE Tao LI Xuan FANG dongyu LI ChaoLing YAO pei School of Materials Science and Engineering Tianjin UniversityTianjin 300072China Center for Analysis Tianjin UniversityTianjin 300072China

The compound Ba0.615Sr0.35Mg0.035TiO3 was analyzed by the X-ray dispersed spectroscopy analyzer (SEM-EDAX) with the spec-trum image method, a powerful tool for chemical phase identification. The method was first time applied on a ceramic material to collect spectrum image and was progressed to identify the Mg-enriched component with fine scale pocket shown in matrix. This result, together with the stoichiometry result obtained from spot mode spectrum analysis, strongly confirmed the microstructure and properties of dielectric materials.

关键词：介质陶瓷频谱分析显微组织 X-射线光谱图像材料收集显示矩阵计量结果

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高能激光光束质量β因子测量方法

应用光学 2024年第3期45卷 537-542页

作者：阴万宏董再天张云龙王文涛刘磊陈豪远段园园吴磊黎高平于东钰吴沛俞兵孙鹏程西安应用光学研究所、国防科技工业光学一级计量站陕西西安710065 中国电子科技集团公司第十一研究所、固体激光技术重点实验室北京100020

高能激光光束质量β因子测量装置主要用于强激光系统状态调试和综合性能参数诊断,用于评价激光系统出光性能以及远场光斑可聚焦的能力。针对接近衍射极限光束质量β因子测量过程中被测光斑在面阵相机上所占的像素点太少等缺陷,研究了采... 详细信息

高能激光光束质量β因子测量装置主要用于强激光系统状态调试和综合性能参数诊断,用于评价激光系统出光性能以及远场光斑可聚焦的能力。针对接近衍射极限光束质量β因子测量过程中被测光斑在面阵相机上所占的像素点太少等缺陷,研究了采用聚焦显微放大与高精度扫描狭缝相结合的光束质量β因子测量方法,并对相关方案进行了分析计算。此外还设计了采用固定像差元件及平行光管光源组合的激光光束质量β因子测量结果验证方案,对研制的高能激光光束质量β因子测量装置进行了不确定度分析,测量不确定度优于10%。

关键词：高能激光 β因子测量方法显微放大扫描狭缝

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光纤激光送丝熔覆修复工艺研究

中国激光 2014年第11期41卷 76-81页

作者：李凯斌李东刘东宇裴广玉上海工程技术大学材料工程学院上海201620

采用光纤激光器在不锈钢表面进行侧向送丝熔覆修复实验，系统地研究了激光工艺参数对熔覆道形貌影响并确定合适的多道搭接率取值范围，为多道多层送丝激光熔覆修复技术应用提供指导。结果表明：影响熔覆道宏观成形和形貌参数的激光工艺... 详细信息

采用光纤激光器在不锈钢表面进行侧向送丝熔覆修复实验，系统地研究了激光工艺参数对熔覆道形貌影响并确定合适的多道搭接率取值范围，为多道多层送丝激光熔覆修复技术应用提供指导。结果表明：影响熔覆道宏观成形和形貌参数的激光工艺参数主要有激光功率、扫描速度和送丝速度，离焦量的影响相对较小，当激光能量密度为100J／mm2，熔丝率为39．44×10^-6g／J时，可得到稳定平滑的熔覆道；合适的搭接率变化范围为45％～53％，此时多道单层熔覆层表面平整度在100μm以下。

关键词：激光技术光纤激光器激光熔覆修复工艺参数

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纳米复合改性沥青混合料路用性能研究

建筑材料学报 2016年第4期19卷 672-677页

作者：孙培张洪亮郭桂宏牛冬瑜长安大学特殊地区公路工程教育部重点实验室陕西西安710064 长安大学材料科学与工程学院陕西西安710064

为评价纳米复合改性沥青混合料的路用性能,对纳米ZnO改性沥青混合料、纳米ZnO/TiO_2改性沥青混合料以及纳米ZnO/TiO_2/SBS复合改性沥青混合料进行了高温性能试验、小梁弯曲试验、劈裂试验及相关耐久性试验,并与基质沥青混合料和SBS改性... 详细信息

为评价纳米复合改性沥青混合料的路用性能,对纳米ZnO改性沥青混合料、纳米ZnO/TiO_2改性沥青混合料以及纳米ZnO/TiO_2/SBS复合改性沥青混合料进行了高温性能试验、小梁弯曲试验、劈裂试验及相关耐久性试验,并与基质沥青混合料和SBS改性沥青混合料进行对比分析.结果表明:上述3种纳米改性沥青混合料的高温稳定性、低温抗裂性、间接抗拉性和耐久性均优于基质沥青混合料,其中纳米ZnO/TiO_2/SBS复合改性沥青混合料的上述性能优于SBS改性沥青混合料.由此可见,纳米材料可显著改善沥青混合料的性能,纳米复合改性沥青的性能优于聚合物改性沥青,将其应用于道路是可行的.

关键词：道路工程纳米复合改性沥青 SBS改性沥青路用性能耐久性

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平尾防冰表面溢流冰生成规律试验研究

南京航空航天大学学报 2022年第6期54卷 1074-1082页

作者：裴如男朱东宇束珺中国航空工业空气动力研究院沈阳110034 沈阳市飞机结冰与防除冰重点实验室沈阳110034 高速高雷诺数气动力航空科技重点实验室沈阳110034 中国商飞上海飞机设计研究院上海201210

以带电加热防除冰系统的平尾后掠翼型为研究对象,在风速90 m/s、温度-4~-9℃、液态水含量(Liquid water content,LWC)0.45~1.5 g/m3以及水滴直径(Median volumetric diameter,MVD)20.1~36μm条件下,在0.6 m结冰风洞中开展溢流冰生成规... 详细信息

以带电加热防除冰系统的平尾后掠翼型为研究对象,在风速90 m/s、温度-4~-9℃、液态水含量(Liquid water content,LWC)0.45~1.5 g/m3以及水滴直径(Median volumetric diameter,MVD)20.1~36μm条件下,在0.6 m结冰风洞中开展溢流冰生成规律研究,包含溢流冰起始位置、覆盖范围和类型。试验结果表明,翼型表面溢流冰形成的起始位置受加热功率及来流温度影响较为明显,加热功率或来流温度低至一定数值时溢流冰类型从溪状冰变为冰脊,随着加热功率或来流温度的增加,溢流冰起始位置向后移动。溢流冰的溢流范围受LWC及加热功率影响较为明显,LWC越大,收集水量越多,溢流的范围随之越广;加热功率的影响类似,增大加热功率融化的溢流水增多,从而溢流范围越广。溢流冰生成的类型对MVD的变化比较敏感,当MVD从20.1μm增加为3μm时,溢流冰即从典型的溪状冰变为冰脊。

关键词：溢流冰防冰冰风洞冰脊

Detection of CD2 expression in chicken hematogenic embryo yolk sac lymphoid cells prior to thymus genesis

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Progress in Natural Science:Materials International 2008年第12期18卷 1589-1594页

作者： dongyu Zhou~a Jigui Wang~b Weiquan Liu~b Rongxiu Liu~c Yuehu pei~a a College of Traditional Chinese Materia Medica,Shenyang Pharmaceutical University,Shenyang 110016,China b College of Biological Sciences,China Agricultural University,Beijing 100094,China c Liaoning Tianhe Biotechnology Co.Ltd,Room 1203,100-1 Dongbinhe Road,Shenyang District,Shenyang 110016,China College of Traditional Chinese Materia Medica Shenyang Pharmaceutical University Shenyang 110016 China College of Biological Sciences China Agricultural University Beijing 100094 China Liaoning Tianhe Biotechnology Co. Ltd Room 1203 100-1 Dongbinhe Road Shenyang District Shenyang 110016 China

Lymphoid mononuclear cells from chick embryos at stage 16 were collected prior to fetal liver and thymus genesis to study the dif- ferentiation and function of the hematogenic yolk sac and to detect whether CD2 occurs on the surface of lymphoid mononuclear cells. The phenotype and functional activity of the cell surface protein E receptor and the ultrastructure of embryonic E~+ cells were compared with those of mature T *** results indicate 99.36% homology between the E receptors of embryonic lymphocytes and mature T *** similarities,including molecular distribution,motivation,the ability to form an erythrocyte rosette,the structure of the receptor-ligand complex,and the conformation of the signal channel,were detected between embryonic lymphocytes and mature CD2-expressing T *** results indicate that CD2 is already expressed prior to fetal liver and thymus genesis and that its expression is not dependent on the thymic microenvironment.

关键词： CD2 Chicken embryo Hematogenic yolk sac

橡胶-纤维微表处混合料路用性能及降噪特性研究

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铁道科学与工程学报 2017年第8期14卷 1623-1631页

作者：李微韩森孙培牛冬瑜长安大学特殊地区公路工程教育部重点实验室陕西西安710064 长安大学材料科学与工程学院陕西西安710064

通过添加橡胶颗粒和纤维对微表处混合料进行复合改性以达到改善其性能的目的,为了系统研究混合料的路用性能,通过对混合料关键参数进行确定,围绕混合料耐磨耗性能、水稳定性能以及抗滑性能的主要影响因素进行研究,并结合自主研发的室内... 详细信息

通过添加橡胶颗粒和纤维对微表处混合料进行复合改性以达到改善其性能的目的,为了系统研究混合料的路用性能,通过对混合料关键参数进行确定,围绕混合料耐磨耗性能、水稳定性能以及抗滑性能的主要影响因素进行研究,并结合自主研发的室内轮胎加速下滑系统,对混合料的降噪性能进行试验分析。试验结果表明:当加入3%的橡胶颗粒及0.2%的聚酯纤维,最佳油石比为7.2%时,微表处混合料耐磨耗性能、水稳定性能均得到显著提高,抗滑性能也比普通沥青混合料得到明显的改善,同时,混合料的噪声水平也得到有效的降低,复合改性微表处混合料甚至比普通微表处混合料噪音值减小2.9 d B。

关键词：道路工程微表处橡胶颗粒聚酯纤维路用性能