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巴氏杀菌和超高压杀菌对即食小龙虾货架期的影响

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渔业现代化 2020年第4期47卷 83-88页

作者：李肖婵林琳朱亚军姜绍通陆剑锋合肥工业大学食品与生物工程学院安徽省农产品精深加工重点实验室农产品生物化工教育部工程研究中心安徽合肥230009

为开发基于小龙虾(学名克氏原螯虾,Procambarus clarkii)的深加工产品,以质构、菌落总数、挥发性盐基氮(TVB-N)、pH、色差为评价指标,探讨两种不同杀菌方式(巴氏杀菌80℃/15 min;超高压杀菌300 MPa/15 min)对4℃贮藏温度下真空包装即食... 详细信息

为开发基于小龙虾(学名克氏原螯虾,Procambarus clarkii)的深加工产品,以质构、菌落总数、挥发性盐基氮(TVB-N)、pH、色差为评价指标,探讨两种不同杀菌方式(巴氏杀菌80℃/15 min;超高压杀菌300 MPa/15 min)对4℃贮藏温度下真空包装即食小龙虾品质的影响。研究显示:巴氏杀菌组的菌落总数和TVB-N分别在第13天(5.5 log(CFU/g))和第14天(20.94 mg/100 g)超过国家水产限量标准(分别为5.0 log(CFU/g)和20 mg/100 g),而超高压杀菌组,分别在第15天(5.15 log(CFU/g))和第16天(21.26 mg/100 g)超过国家水产限量标准;且超高压杀菌组即食小龙虾硬度(1358.33 g)、粘着性(987.66)、咀嚼性(840.84)均显著(P0.05);此外,经超高压杀菌处理的即食小龙虾色泽也略优于巴氏杀菌组,但无显著性差异(P>0.05)。结果表明:在4℃的贮藏条件下,超高压杀菌处理的即食小龙虾货架期为14 d,相比80℃巴氏杀菌处理组,延长了约2 d的货架期,但两种杀菌方式处理的即食小龙虾产品的理化性质和菌落总数差距不大。

关键词：即食小龙虾超高压杀菌巴氏杀菌菌落总数食品质构

Optimized Target-AID system efficiently induces single base changes in zebrafish

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Journal of Genetics and Genomics 2018年第4期45卷 215-217页

作者： xiaochan Lu Yunxing liu Guanrong Yan Song li Wei Qin Shuo lin State Key Laboratory of Chemical Oncogenomics Key Laboratory of Chemical Genomics Peking University Shenzhen Graduate School Department of Molecular Cell and Development Biology University of CaliforniaLos Angeles

CRISPR-Cas system has been widely adapted as a platform for genome editing in various eukaryotic organisms, including zebrafish（Cong et al., 2013; Hwang et al., 2013）. One of the important applications of CRISPR-Cas... 详细信息

关键词： AID Optimized Target-AID system efficiently induces single base changes in zebrafish Target

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中国古代仕女图角度下女性与园林关系辨析

山西建筑 2019年第16期45卷 146-147页

作者：李晓婵陈燕清张鹏郭凯琳陈阵陈殷宁广东理工学院

从中国古代仕女画出发,辨析古代女性于环境色彩、生活要求及审美要求三方面在园林表达上的追求,以女性视角观察古代园林环境对女性的影响与关系,利用园林诠释古代女子认知世界的方式以及释放真我的途径,将园林作为抒发自我艺术情怀和人... 详细信息

从中国古代仕女画出发,辨析古代女性于环境色彩、生活要求及审美要求三方面在园林表达上的追求,以女性视角观察古代园林环境对女性的影响与关系,利用园林诠释古代女子认知世界的方式以及释放真我的途径,将园林作为抒发自我艺术情怀和人生情怀的一种重要载体。

关键词：古代私家园林仕女图女性艺术审美

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两种消化内镜水气管道预处理方法的效果比较

护理研究 2024年第3期38卷 530-533页

作者：李良芳张碧雄王森轼黄大辉邓小婵赖艳新南方医科大学附属广东省人民医院(广东省医学科学院) 广东510055

目的:对比两种胃镜水气管道预处理方法的清洗效果和喷嘴堵塞情况。方法:将100条胃镜随机分为对照组和试验组,每组50条。其中试验组内镜使用后经初步擦拭后更换A/W按钮对水气管道和喷嘴进行冲洗,对照组内镜使用后经擦拭后直接使用水气按... 详细信息

目的:对比两种胃镜水气管道预处理方法的清洗效果和喷嘴堵塞情况。方法:将100条胃镜随机分为对照组和试验组,每组50条。其中试验组内镜使用后经初步擦拭后更换A/W按钮对水气管道和喷嘴进行冲洗,对照组内镜使用后经擦拭后直接使用水气按钮进行冲洗。两组内镜均对水气管道采样后使用ATP生物荧光法检测,观察统计内镜喷嘴的堵塞情况和处理时间。结果:预处理后,对照组内镜的ATP值高于试验组,差异有统计学意义(P0.05);对照组床旁预处理时间(30 s)短于试验组(81 s),差异有统计学意义(P<0.05)。结论:更换AW按钮会增加床旁预处理流程的操作步骤和时间,但有利于降低水气管道的生物负载。

关键词：软式内镜水气管道喷嘴生物膜预处理

Image compression algorithm of floral canopy based on mask hybrid coding for ROI

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International Journal of Agricultural and Biological Engineering 2017年第5期10卷 166-176页

作者： Sun Guoxiang Wang xiaochan Ding Yongqian li Yuhua Zhang Baohua li Yongbo Zhang Yu College of Engineering Nanjing Agricultural UniversityNanjing 210095China

To achieve high-quality image compression of a floral canopy,a region of interest(ROI)mask of the wavelet domain was generated through the automatic identification of the canopy ROI and lifting the bit-plane of the ROI to obtain priority of coding for the ROI-set partitioning in hierarchical trees(ROI-SPIHT)*** embedded zerotree wavelet(EZW)coding was conducted for the background(BG)region of the image and a relatively more low-frequency wavelet coefficient was obtained using a relatively small amount of *** the weighing factor r of the ROI coding amount,the proportion of the ROI and BG coding amount was dynamically adjusted to generate embedded,truncatable bit *** the location of truncation,the image information and ROI mask information required by the decoder can be guaranteed to achieve high-quality compression and reconstruction of the image *** results indicated that under the same bit rate,the larger the r value is,the larger the peak-signal-to-noise ratio(PSNR)for the ROI reconstructed image and the smaller the PSNR for the BG reconstructed *** the range of 0.07-1.09 bpp,the PSNR of the ROI reconstructed image was 42.65%higher on average than that of the BG reconstructed image,43.95%higher on average than that of the composite image of the ROI and BG(ALL),and 16.84%higher on average than that of the standard SPIHT reconstructed ***,the mean square error of the quality evaluation index and similarity for the ROI reconstructed image were both better than those for the BG,ALL,and standard SPIHT reconstructed *** texture distortion of the ALL image was smaller than that of the SPIHT reconstructed image,indicating that the image compression algorithm based on the mask hybrid coding for ROI(ROI-MHC)is capable of improving the reconstruction quality of an ROI *** the weighing factor r is a fixed value,as the proportion of ROI(a)increases,the quality of ROI image reconstruction gradually ***

关键词： floral canopy ROI mask hybrid coding image compression algorithm wavelet transform

规范化胰岛素注射培训对社区糖尿病患者血糖达标率的影响

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中国临床护理 2018年第4期10卷 340-343页

作者：赵青马静怡刘启思李晓婵陈信胡刘冬娜王萍广东医科大学护理学院广东东莞523808

目的探讨规范化胰岛素注射培训对社区糖尿病患者血糖达标率的影响。方法选取某社区使用胰岛素笔注射治疗的糖尿病患者70例,通过调查问卷记录患者在胰岛素注射方面存在的问题,将患者随机分为培训组与对照组各35例,培训组根据所反映的问... 详细信息

目的探讨规范化胰岛素注射培训对社区糖尿病患者血糖达标率的影响。方法选取某社区使用胰岛素笔注射治疗的糖尿病患者70例,通过调查问卷记录患者在胰岛素注射方面存在的问题,将患者随机分为培训组与对照组各35例,培训组根据所反映的问题采取规范化胰岛素注射培训,对照组采用传统的培训方式,2组均在培训后6个月进行效果评价。结果培训后培训组在胰岛素注射知识掌握及注射技巧方面优于对照组,血糖达标率高于对照组(χ2=4.644,P=0.031)。结论通过规范化胰岛素注射培训可提高社区糖尿病患者胰岛素注射知识及注射技巧掌握情况,提高患者血糖达标率。

关键词：规范化胰岛素注射培训血糖达标率糖尿病社区

Controlled synthesis of hierarchically-structured MnCo_2O_4 and its potential as a high performance anode material

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Science China Chemistry 2017年第9期60卷 1180-1186页

作者： Zixiao Wu Fuhai li Yonggang Sun Deshan Bin Junyu Piao Xijie lin xiaochan liu Anmin Cao li-Jun Wan CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

To satisfy the upsurging demand for energy storage in modern society,anode materials which can deliver high capacity have been intensively researched for the next generation lithium ion ***,the binary MnCo_2O_4 with a characteristic coupled metal cations showed promising potential due to its high theoretical capacity and low ***,by means of a well-designed synthesis control,we demonstrated a scalable process to achieve a hierarchical structure of MnCo_2O_4,which existed as uniform microspheres with embedded mesopores,showing favorable structural characters for high performance during a fast charge/discharge *** synthesis highlighted the importance of sodium salicylate as an essential additive to control the precipitation of the two involved metal *** was proved that a dual role was played sodium salicylate which cannot only facilitate the formation of microspheric shape,but also act as an effective precursor for the creation of inner *** confirmed that the hierarchically-structured MnCo_2O_4 showed outstanding performance when it was tested as an anode material in lithium ion batteries as revealed by its extraordinary cycling stability and high rate capability.

关键词： hierarchical structure anode materials MnCo2O4 lithium ion batteries porous structure

Image segmentation algorithm for greenhouse cucumber canopy under various natural lighting conditions

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International Journal of Agricultural and Biological Engineering 2016年第3期9卷 130-138页

作者： Sun Guoxiang li Yongbo Wang xiaochan Hu Guyue Wang Xuan Zhang Yu College of Engineering Nanjing Agricultural UniversityNanjing 210095China

In this study,machine vision technology was used to capture images of greenhouse cucumber canopy,and image segmentation was implemented under various natural lighting *** images were enhanced by multi-scale retinex with color restore(MSRCR),and the MSRCR images were segmented by four algorithms:normalized difference index(NDI),excess green(ExG),modified excess green(MExG),and modified excess green minus excess red(MExG-ExR).The results indicated that compared with the original images,under various lighting conditions,the average evaluation indexes of brightness,information entropy,average gradient and mean gray value of the MSRCR images were increased by 38.71%,8.04%,4.54%,and 37.81%,respectively,and only the contrast degree decreased by 12.13%.The MExG-ExR segmentation algorithm was used to segment the MSRCR images(fifty images under various lighting conditions in the test and it performed best among the four segmentation algorithms,average overlap ratios and recognition rates of were 99.28%and 98.91%,respectively,while 38.39%and 37.95%respectively for original *** results indicated that the MExG-ExR segmentation algorithm applied to a MSRCR canopy image produced the most stable results among the four *** using the MSRCR image enhancement algorithm,the interference of lighting on greenhouse cucumber canopy images was reduced and the foundation for achieving accurate segmentation of a canopy region was laid,which is of great significance for greenhouse cucumber phenotypic parameter measurements.

关键词： greenhouse cucumber canopy machine vision image segmentation illumination retinex

High-throughput first-principle prediction of collinear magnetic topological materials

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npj Computational Materials 2022年第1期8卷 2490-2497页

作者： Yunlong Su Jiayu Hu xiaochan Cai Wujun Shi Yunyouyou Xia Yuanfeng Xu Xuguang Xu Yulin Chen Gang li School of Physical Science and Technology ShanghaiTech University201210ShanghaiChina Center for Transformative Science ShanghaiTech University201210ShanghaiChina Shanghai High Repetition Rate XFEL and Extreme light Facility(SHINE) ShanghaiTech University201210ShanghaiChina ShanghaiTech Laboratory for Topological Physics ShanghaiTech University201210ShanghaiChina Center for Correlated Matter and School of Physics Zhejiang University310058HangzhouChina Department of Physics Princeton UniversityPrincetonNJUSA Department of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxfordOX13PUUK

The success of topological band theory and symmetry-based topological classification significantly advances our understanding of the Berry *** on the critical concept of topological obstruction,efficient theoretical frameworks,including topological quantum chemistry and symmetry indicator theory,were developed,making a massive characterization of real materials ***,the classification of magnetic materials often involves the complexity of their unknown magnetic structures,which are often hard to know from experiments,thus,hindering the topological *** this paper,we design a high-throughput workflow to classify magnetic topological materials by automating the search for collinear magnetic structures and the characterization of their topological *** computed 1049 chosen transition-metal compounds(TMCs)without oxygen and identified 64 topological insulators and 53 semimetals,which become 73 and 26 when U correction is further *** to the lack of magnetic structure information from experiments,our high-throughput predictions provide insightful reference results and make the step toward a complete diagnosis of magnetic topological materials.

关键词： materials topological symmetry