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书画世界 2024年第6期 63-63页

作者：姚玥浙江省书法家协会浙江省青年书法家协会

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沃柑皮衍生多孔碳负载钴纳米颗粒复合材料的制备及其电催化性能

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安徽科技学院学报 2024年第3期38卷 102-109页

作者：郭锐付顺利沈长辉姚悦樊晓宇安徽科技学院机械工程学院安徽凤阳233100 安徽科技学院化学与材料工程学院安徽蚌埠233030 安徽科技学院电气与电子工程学院安徽蚌埠233030

目的:研发低成本、高效耐用的生物质基氧还原催化剂来替代贵金属氧还原催化剂,以降低燃料电池商业化成本。方法:以沃柑皮和硝酸钴为原料,通过浸渍和高温热处理的方法合成负载Co纳米颗粒的生物基碳材料(Co-C)。结果:所制备的Co-C在0.1 mo... 详细信息

目的:研发低成本、高效耐用的生物质基氧还原催化剂来替代贵金属氧还原催化剂,以降低燃料电池商业化成本。方法:以沃柑皮和硝酸钴为原料,通过浸渍和高温热处理的方法合成负载Co纳米颗粒的生物基碳材料(Co-C)。结果:所制备的Co-C在0.1 mol/L KOH溶液中催化氧还原反应(ORR)的平均电子转移数为3.59,接近四电子催化途径,具有优异的催化性能;Co-C的起始电位为-0.11 V,接近商业Pt/C(Pt 20%)的起始电位-0.10 V,其稳定性及抗甲醇性均优于商业Pt/C(Pt 20%)。结论:该生物质沃柑皮衍生多孔碳负载Co纳米颗粒复合材料在电催化领域具有巨大的应用潜力。

关键词：多孔生物质碳氧还原反应电化学催化剂

Application of UAV-Based Imaging and Deep Learning in Assessment of Rice Blast Resistance

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Rice science 2023年第6期30卷 652-660页

作者： LIN Shaodan yao yue LI Jiayi LI Xiaobin MA Jie WENG Haiyong CHENG Zuxin YE Dapeng College of Mechanical and Electrical Engineering Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Mechanical and Intelligent Manufacturing Fujian Chuanzheng Communications CollegeFuzhou 350007China Fujian Key Laboratory of Agricultural Information Sensing Technology Fuzhou 350002China College of Agriculture Fujian Agriculture and Forestry UniversityFuzhou 350002China

Rice blast is regarded as one of the major diseases of *** rice genotypes with high resistance to rice blast is a key strategy for ensuring global food *** aerial vehicles(UAV)-based imaging,coupled with deep learning,can acquire high-throughput imagery related to rice blast *** this study,we developed a segmented detection model(called RiceblastSegMask)for rice blast detection and resistance *** feasibility of different backbones and target detection models was further *** is a two-stage instance segmentation model,comprising an image-denoising backbone network,a feature pyramid,a trinomial tree fine-grained feature extraction combination network,and an image pixel codec *** results showed that the model combining the image-denoising and fine-grained feature extraction based on the Swin Transformer and the feature pixel matching feature labels with the trinomial tree recursive algorithm performed the *** overall accuracy for instance segmentation of RiceblastSegMask reached 97.56%,and it demonstrated a satisfactory accuracy of 90.29%for grading unique resistance to rice *** results indicated that low-altitude remote sensing using UAV,in conjunction with the proposed RiceblastSegMask model,can efficiently calculate the extent of rice blast infection,offering a new phenotypic tool for evaluating rice blast resistance on a field scale in rice breeding programs.

关键词： rice blast segmentation detection trinomial tree Swin Transformer unmanned aerial vehicle

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基于色度角信息的衡水湖富营养状态监测研究

水利水电技术（中英文） 2024年第6期55卷 84-95页

作者：徐耀汉申茜邢晓达刘慎栋田东坡姚月马鹏飞姜诺涵河北省地质矿产勘查开发局第九地质大队河北邢台054000 可持续发展大数据国际研究中心北京100094 中国科学院空天信息创新研究院数字地球重点实验室北京100094 中国科学院大学北京100094

【目的】营养状态作为评价湖库水环境变化特征的一个重要方面,实现对其准确、大范围的动态监测对于分析富营养化成因具有十分重要的作用。【方法】利用Landsat8遥感数据的色度角信息,构建了适用于衡水湖的叶绿素a浓度反演模型,并对其精... 详细信息

【目的】营养状态作为评价湖库水环境变化特征的一个重要方面,实现对其准确、大范围的动态监测对于分析富营养化成因具有十分重要的作用。【方法】利用Landsat8遥感数据的色度角信息,构建了适用于衡水湖的叶绿素a浓度反演模型,并对其精度进行了检验,在此基础上,实现对衡水湖2013—2022年10 a间的营养状态监测,分析了其与气温和降水等气候因素的关系,对2018—2019年5次生态补水过程进行了遥感监测。【结果】结果表明:(1)该模型较为可靠,决定系数R^(2)为0.79,均方根误差和平均百分比误差分别为0.0018和4.5%;(2)近10 a衡水湖营养状态得到一定的改善,其空间变化呈现“北低南高”现象。其中,南关闸和南关新闸相对于其他湖体区域营养状态处于较高水平;(3)通过对5次生态补水过程的遥感监测发现,生态补水对于衡水湖营养状态改善具有一定的积极作用,尤其在进水口的王口闸附近,其对生态补水的响应最为及时。衡水湖营养状态是一个内在、外在、水动力等多因素影响的问题,对于个别区域存在些许波动,仍需进一步研究其内在关系。【结论】通过遥感手段实现对衡水湖营养状态的监测是可行的,能够较好揭示衡水湖营养状态变化整体规律,并实现对生态补水过程的有效监测,为衡水湖湿地水环境监测和营养状态治理提供重要的技术支撑。

关键词：营养状态遥感时空规律驱动因素衡水湖影响因素

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提高微碳铬铁中铬含量的检验稳定性

山西冶金 2024年第7期47卷 60-62页

作者：姚悦庄丽丽杨彩霞卫静刘岩酒钢集团检验检测中心甘肃嘉峪关735100

采用国家标准测定铬铁中铬含量,对溶样过程中样品称样量、溶样方式、过硫酸铵酸度、磷酸加入试料及冒烟程度、干扰元素等影响因素进行分析对比,最终确定了磷酸溶样过硫酸铵氧化滴定法。该方法操作简便,分析周期短,采用不同标样进行反复... 详细信息

采用国家标准测定铬铁中铬含量,对溶样过程中样品称样量、溶样方式、过硫酸铵酸度、磷酸加入试料及冒烟程度、干扰元素等影响因素进行分析对比,最终确定了磷酸溶样过硫酸铵氧化滴定法。该方法操作简便,分析周期短,采用不同标样进行反复验证后,分析结果的准确度和精密度均很高,满足不锈钢的生产需要。

关键词：微碳铬铁磷酸冒烟过硫酸铵氧化精密度

临床药师参与1例CRKP感染患儿的治疗实践

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国外医药（抗生素分册） 2024年第3期45卷 191-194页

作者：冯亚男谭尧月韩倩牟鸣达州市中心医院临床药学科四川达州635000

目的为耐碳青霉烯肺炎克雷伯菌(CRKP)感染患儿的治疗提供经验参考。方法临床药师参与1例CRKP肺部、血流感染患儿的抗感染治疗过程。通过查阅文献,结合患儿具体情况及抗菌药物的PK/PD协助医师制定个体化给药方案。结果参考药师建议,予以... 详细信息

目的为耐碳青霉烯肺炎克雷伯菌(CRKP)感染患儿的治疗提供经验参考。方法临床药师参与1例CRKP肺部、血流感染患儿的抗感染治疗过程。通过查阅文献,结合患儿具体情况及抗菌药物的PK/PD协助医师制定个体化给药方案。结果参考药师建议,予以替加环素联合美罗培南治疗后,患儿感染得到有效控制,未出现药物相关不良反应。结论本次治疗,临床药师协助医师进行用药方案调整,改善了治疗效果,对于CRKP感染严重的8岁以上患儿,可考虑采用替加环素联合美罗培南的治疗。

关键词：耐碳青霉烯肺炎克雷伯菌儿童替加环素美罗培南延长输注时间联合用药

A PHYSICAL MODEL FOR PREDICTING THE PRESSURE DROP OF GAS-LIQUID SLUG FLOW IN HORIZONTAL PIPES

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Journal of Hydrodynamics 2007年第6期19卷 736-742页

作者： LI Guo-zhen yao yue-dong DONG Shou-ping Faculty of Mechanical and Electronic Engineering China University of Petroleum （Beijing） Beijing 102249 China CMOE Key Laboratory of Petroleum Engineering China University of Petroleum （Beijing） Beijing 102249China Faculty of Mechanical and Electronic Engineering China University of Petroleum （Beijing） Beijing 102249China

A comprehensive treatment of all sources of pressure drop within intermittent gas-liquid flow is presented. A slug unit is divided into three parts and the pressure gradient of each part is calculated separately. In the mixing zone the momentum theory is employed and the mixing process between the film and slug is simulated by a two-dimensional wall jet entering a large reservoir to calculate the mixing length. The boundary layer theory is utilized to calculate the pressure drop for the slug body and the momentum equation of the film zone is integrated to calculate the pressure drop for the film zone. The pressure drop predicted in present model is in good agreement with all the measurements.

关键词： slug flow gas-liquid flow pressure drop,physical model

Dynamic synthetic analysis of circulation field of tropical cyclones affecting Shanghai

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Frontiers of Earth Science 2024年第2期18卷 347-363页

作者： Wen GU Caijun yue Zhihui HAN Yanqing GAO Yuqi TANG Xiangyu AO yao yao Shanghai Ecological Forecasting&Remote Sensing Center Shanghai 200030China Shanghai Marine Meteorological Centre Shanghai 200030China Shanghai Typhoon Institute China Meteorological AdministrationShanghai 200030China Key Laboratory of Numerical Modeling for Tropical Cyclone(China Meteorological Administration) Shanghai 200030China

Eleven tropical cyclones(TCs)affected Shanghai and crossed the same latitude as Shanghai from 2007 to *** to similar tracks from best-track data,TCs that cause significant precipitation in Shanghai can be divided into three types:landfall TCs,nearshore northward TCs,and western *** on ERA5 reanalysis data,the dynamic synthesis method was used to synthesize TC circulation situations to compare thermal,dynamic,water vapor,and stability conditions within TC circulations during the period when they affected *** conclusions are as follows.1)When the three TC types are at the same latitude as Shanghai,they are all in the divergent field in the upper *** the landfall type,the subtropical high at 500 hPa is stronger and farther north than usual,and there is a high-pressure dam on the north side of the TCs.2)The warm advection of the three TC types at 925 hPa is located in the northern quadrant of the *** dynamic and water vapor conditions are good in the north-western quadrant of landfall and western TCs,and more favorable in the eastern quadrant of nearshore northward TCs.3)The favorable effects of all three types on precipitation in Shanghai come from the boundary *** vapor,upward motion,and instability conditions of landfall TCs are superior to the other two TC *** best water vapor,dynamic,and convective instability conditions are at the northern boundary in Shanghai during landfall TCs,and the main sources of water vapor in Shanghai come from the eastern and northern *** nearshore northward TCs,the main contribution to precipitation is from the eastern boundary,while better dynamic and water vapor conditions come from the western and northern boundaries during western *** above findings provide scientific and technical support for operational forecasting precipitation from TCs affecting mega-cities.

关键词： tropical cyclones dynamic synthetic analysis ERA5 reanalysis Shanghai similar track

Identification of serous ovarian tumors based on polarization imaging and correlation analysis with clinicopathological features

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Journal of Innovative Optical Health Sciences 2023年第5期16卷 33-46页

作者： Yulu Huang Anli Hou Jing Wang yue yao Wenbin Miao Xuewu Tian Jiawen Yu Cheng Li Hui Ma Yujuan Fan Department of Gynaecology Wuzhou Red Cross HospitalWuzhou Guangxi 543002P.R.China Shenzhen Key Laboratory for Minimal Invasive Medical Technologies Guangdong Engineering Center of Polarization Imaging and Sensing Technology Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhenGuangdong 518055P.R.China Department of Gynaecology University of Chinese Academy of Sciences Shenzhen HospitalShenzhen Guangdong 518106P.R.China Tsinghua-Berkeley Shenzhen Institute Tsinghua University ShenzhenGuangdong 518071P.R.China |Department of Physics Tsinghua University Beijing 100084P.R.China Department of Pathology University of Chinese Academy of Sciences Shenzhen HospitalShenzhen Guangdong 518106P.R.China Department of Pathology Wuzhou Red Cross Hospital Wuzhou Guangxi 543002P.R.China

Ovarian cancer is one of the most aggressive and heterogeneous female tumors in the world,and serous ovarian cancer(SOC)is of particular concern for being the leading cause of ovarian cancer *** to its clinical and biological complexities,ovarian cancer is still considered one of the most di±cult tumors to diagnose and *** this study,three datasets were assembled,including 30 cases of serous cystadenoma(SCA),30 cases of serous borderline tumor(SBT),and 45 cases of serous adenocarcinoma(SAC).Mueller matrix microscopy is used to obtain the polarimetry basis parameters(PBPs)of each case,combined with a machine learning(ML)model to derive the polarimetry feature parameters(PFPs)for distinguishing serous ovarian tumor(SOT).The correlation between the mean values of PBPs and the clinicopathological features of serous ovarian cancer was *** accuracies of PFPs obtained from three types of SOT for identifying dichotomous groups(SCA versus SAC,SCA versus SBT,and SBT versus SAC)were 0.91,0.92,and 0.8,*** accuracy of PFP for identifying triadic groups(SCA versus SBT versus SAC)was *** analysis between PBPs and the clinicopathological features of SOC was *** were correlations between some PBPs(δ,β,q_(L),E_(2),rqcross,P_(2),P_(3),P_(4),and P_(5))and clinicopathological features,including the International Federation of Gynecology and Obstetrics(FIGO)stage,pathological grading,preoperative ascites,malignant ascites,and peritoneal *** research showed that PFPs extracted from polarization images have potential applications in quantitatively differentiating the *** polarimetry basis parameters related to the clinicopathological features of SOC can be used as prognostic factors.

关键词： Serous ovarian tumor(SOT) polarimetry basis parameter(PBP) polarimetry feature parameter(PFP) polarization imaging machine learning(ML).

Detecting bulk and edge exceptional points in non-Hermitian systems through generalized Petermann factors

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Frontiers of physics 2024年第2期19卷 169-177页

作者： yue-Yu Zou yao Zhou Li-Mei Chen Peng Ye School of Physics State Key Laboratory of Optoelectronic Materials and Technologiesand Guangdong Provincial Key Laboratory of Magnetoelectric Physics and DevicesSun Yat-sen UniversityGuangzhou 510275China

Non-orthogonality in non-Hermitian quantum systems gives rise to tremendous exotic quantum phenomena,which can be fundamentally traced back to *** this paper,we introduce an interesting quantity(denoted asη)as a new variant of the Petermann factor to directly and efficiently measure non-unitarity and the associated non-Hermitian *** tuning the model parameters of underlying non-Hermitian systems,we find that the discontinuity of bothηand its first-order derivative(denoted as■η)pronouncedly captures rich physics that is fundamentally caused by *** concretely,in the 1D non-Hermitian topological systems,two mutually orthogonal edge states that are respectively localized on two boundaries become non-orthogonal in the vicinity of discontinuity ofηas a function of the model parameter,which is dubbed"edge state transition".Through theoretical analysis,we identify that the appearance of edge state transition indicates the existence of exceptional points(EPs)in topological edge *** the discontinuity of■η,we investigate a two-level non-Hermitian model and establish a connection between the points of discontinuity of■ηand EPs of bulk *** studying this connection in more general lattice models,we find that some models have discontinuity of■η,implying the existence of EPs in bulk states.

关键词： non-Hermitian Su−Schrieffer−Heeger(SSH)model exceptional point