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甘露寡糖对断奶仔猪生长性能、免疫机能及抗氧化性能的影响

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中国饲料 2024年第6期 5-8页

作者：吴中敏吴洪江苏省车辐中等专业学校江苏徐州221344 江苏省宿迁市畜牧兽医站江苏宿迁223800

文章旨在研究甘露寡糖对断奶仔猪生长性能、免疫机能及抗氧化性能的影响,本试验将160头健康的30日龄断奶仔猪随机分4组,每组5个重复,每个重复8头仔猪。对照组(CK)为基础日粮,试验组T1、T2、T3分别在基础日粮中添加0.1%、0.2%、0.4%甘露... 详细信息

文章旨在研究甘露寡糖对断奶仔猪生长性能、免疫机能及抗氧化性能的影响,本试验将160头健康的30日龄断奶仔猪随机分4组,每组5个重复,每个重复8头仔猪。对照组(CK)为基础日粮,试验组T1、T2、T3分别在基础日粮中添加0.1%、0.2%、0.4%甘露寡糖,试验为期28 d。试验结果表明,添加0.1%、0.2%和0.4%甘露寡糖的断奶仔猪平均日增重比对照组分别显著提高8%、14%和13%(P0.05);添加不同比例的甘露寡糖可以提高断奶仔猪血液的免疫性能,甘露寡糖处理组断奶仔猪血液的IgG、IgA、IgM、CD^(3+)、CD^(4+)、CD^(8+)含量均显著高于对照组(P<0.05),0.2%的甘露寡糖效果最优,其IgG、IgA、IgM、CD^(3+)、CD^(4+)、CD^(8+)含量比对照组分别显著提高33.9%、57.8%、16.3%、19.3%、45.6%和15.3%,CD^(4+)和CD^(8+)比值最接近2,即免疫机能最大化;添加不同比例的甘露寡糖均可提高断奶仔猪血液的抗氧化能力,其中0.2%的甘露寡糖处理效果最优,断奶仔猪血液的SOD和GSH-Px活性比对照组显著提高45.4%和21.6%(P<0.05),MDA含量比对照组显著降低39.7%(P<0.05)。结果表明,添加甘露寡糖可以提高断奶仔猪的生长性能、血液免疫机能和抗氧化能力,其中0.2%的添加比例效果较好。

关键词：甘露寡糖断奶仔猪生长性能免疫机能抗氧化能力

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半夏秫米汤治疗汗证探析

中国民间疗法 2024年第17期32卷 1-3页

作者：刘庭利胡雪吴秋玲山西中医药大学山西太原030024

半夏秫米汤出自《黄帝内经》,是治疗不寐的经典名方,通过交通阴阳,养胃和中而使卧安。该文认为,脾胃不和、阴阳失调亦可引起汗证,基于异病同治的原则,采用半夏秫米汤治疗脾胃不和、阴阳失调引起的汗证疗效确切。该文通过对汗证的病因病... 详细信息

半夏秫米汤出自《黄帝内经》,是治疗不寐的经典名方,通过交通阴阳,养胃和中而使卧安。该文认为,脾胃不和、阴阳失调亦可引起汗证,基于异病同治的原则,采用半夏秫米汤治疗脾胃不和、阴阳失调引起的汗证疗效确切。该文通过对汗证的病因病机进行分析,探析半夏秫米汤对汗证的治疗作用。

关键词：多汗症汗证半夏秫米汤脾胃不和阴阳失调

基于深度学习与机器视觉的起重机吊装安全监测方法

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科技创新与应用 2024年第2期14卷 1-5页

作者：薛志钢许晨旭巫波闻东东江苏省特种设备安全监督检验研究院南京210036 徐州工程学院江苏徐州221000

随着我国经济的快速发展,各类大型工程层出不穷,对起重机吊装作业的需求不断增加。然而,吊装作业过程中依然存在众多的安全隐患,极易造成人员伤亡等安全事故。因此,该文提出一种基于深度学习和机器视觉的起重机吊装安全监测方法。将深... 详细信息

随着我国经济的快速发展,各类大型工程层出不穷,对起重机吊装作业的需求不断增加。然而,吊装作业过程中依然存在众多的安全隐患,极易造成人员伤亡等安全事故。因此,该文提出一种基于深度学习和机器视觉的起重机吊装安全监测方法。将深度学习与机器视觉相结合对监控图像中的被吊物和工人进行识别和定位,同时可自主判断工人是否佩戴安全帽。根据监测模型的识别和定位信息,获得工人与被吊物之间的空间关系,为起重机吊装过程提供安全预警信息。为了提高所提方法的实用性和便携性,开发一个起重机吊装安全智能监测系统,不仅可以实时显示监控图像的识别结果,而且能够输出场景的语义描述、发出安全预警信号。

关键词：深度学习机器视觉吊装监测智能监测安全预警

Development of liquid-nitrogen-cooling friction stir spot welding for AZ31 magnesium alloy joints

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International Journal of Minerals,Metallurgy and Materials 2017年第10期24卷 1169-1176页

作者： Dong wu Jun Shen Meng-bing Zhou Liang Cheng Jia-xing Sang State Key Laboratory of Mechanical Transmission College of Materials Science & Engineering Chongqing University Chongqing 400044 China

A liquid-nitrogen-cooling friction stir spot welding(C-FSSW) technology was developed for welding AZ31 magnesium alloy sheets. The liquid-nitrogen cooling degraded the deformability of the welded materials such that the width of interfacial cracks increased with increasing cooling time. The grain size of the stirred zone(SZ) and the heat-affected zone(HAZ) of the C-FSSW-welded joints decreased, whereas that of the thermomechanically affected zone(TMAZ) increased with increasing cooling time. The maximum tensile shear load of the C-FSSW-welded joints welded with a cooling time of 5 or 7 s was larger than that of the friction stir spot welding(FSSW)-welded joint, and the tensile shear load decreased with increasing cooling time. The microhardness of the C-FSSW-welded joints was greater than that of the FSSW-welded joint. Moreover, the microhardness of the SZ and the HAZ of the C-FSSW-welded joints increased, whereas that of the TMAZ decreased, with increasing cooling time.

关键词： magnesium alloy liquid nitrogen cooling friction stir spot welding microstructure mechanical property

An Open Source Toolkit for Identifying Comparative Space-time Research Questions

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Chinese Geographical Science 2014年第3期24卷 348-361页

作者： YE Xinyue SHE bing wu Ling ZHU Xinyan CHENG Yeqing Computational Social Science Lab & Department of Geography Kent State University State Key Lab of Information Engineering in Surveying Mapping and Remote Sensing Wuhan University College of Criminal Justice Zhongnan University of Economics and Law Northeast Institute of Geography and Agroecology Chinese Academy of Sciences

Comparative space-time thinking lies at the heart of spatiotemporally integrated social sciences. The multiple dimensions and scales of socioeconomic dynamics pose numerous challenges for the application and evaluation of public policies in the comparative context. At the same time, social scientists have been slow to adopt and implement new spatiotemporally explicit methods of data analysis due to the lack of extensible software packages, which becomes a major impediment to the promotion of spatiotemporal thinking. The proposed framework will address this need by developing a set of research questions based on space-time-distributional features of socioeconomic datasets. The authors aim to develop, evaluate, and implement this framework in an open source toolkit to comprehensively quantify the changes and level of hidden variation of space-time datasets across scales and dimensions. Free access to the source code allows a broader community to incorporate additional advances in perspectives and methods, thus facilitating interdisciplinary collaboration. Being written in Python, it is entirely cross-platform, lowering transmission costs in research and education.

关键词： open source comparative spatiotemporally integrated social sciences

Generating a nanoscale blade-like optical field in a coupled nanofiber pair

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Photonics Research 2024年第1期12卷 154-162页

作者： YUXIN YANG JIAXIN GAO HAO wu ZHANKE ZHOU LIU YANG XIN GUO PAN WANG LIMIN TONG Interdisciplinary Center for Quantum Information New Cornerstone Science LaboratoryState Key Laboratory of Extreme Photonics and InstrumentationCollege of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China Jiaxing Key Laboratory of Photonic Sensing&Intelligent Imaging Intelligent Optics&Photonics Research CenterJiaxing Research Institute Zhejiang UniversityJiaxing 314000China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

An optical field with sub-nm confinement is essential for exploring atomic-or molecular-level light-matter *** such fields demonstrated so far have typically point-like cross-sections,an optical field having a higher-dimensional cross-section may offer higher flexibility and/or efficiency in ***,we propose generating a nanoscale blade-like optical field in a coupled nanofiber pair(CNP)with a 1-nm-width central *** on a strong mode coupling-enabled slit waveguide mode,a sub-nm-thickness blade-like optical field can be generated with a cross-section down to~0.28 nm×38 nm at 1550 nm wavelength(i.e.,a thickness of~λ_(0)∕5000)and a peak-to-background intensity ratio(PBR)higher than 20 d *** slit waveguide mode of the CNP can be launched from one of the two nanofibers that are connected to a standard optical fiber via an adiabatical fiber taper,in which a fundamental waveguide mode of the fiber can be converted into a high-purity slit mode with high efficiency(>98%)within a CNP length of less than 10μm at 1550 nm *** wavelengthdependent behaviors and group velocity dispersion in mode converting processes are also investigated,showing that such a CNP-based design is also suitable for broadband and ultrafast pulsed *** results may open up new opportunities for studying light-matter interaction down to the sub-nm scale,as well as for exploring ultra-high-resolution optical technology ranging from super-resolution nanoscopy to chemical bond manipulation.

关键词： fiber waveguide optical

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江苏省生物医学实验室科研人员暴露调查分析

南京医科大学学报（自然科学版） 2024年第1期44卷 65-71页

作者：张燕黄剑刘红唐梅张芙蓉吴菁沈宁薛斌南京医科大学附属逸夫医院医学工程部江苏南京211112 中国药科大学生命科学与技术学院江苏南京211198 南京医科大学附属逸夫医院中心实验室江苏南京211112 瑞测精准医学检测(上海)有限公司上海200120 南京医科大学附属逸夫医院检验科江苏南京211112

目的:检测江苏省生物医学实验室科研人员体内环境污染物残留状况,为实验室生物安全制度的制定提供依据。方法:在江苏省南京、苏州、盐城、淮安4个地区高校内分别选取100例生物医学实验室科研人员和100例非科研人员为研究对象,采用问卷... 详细信息

目的:检测江苏省生物医学实验室科研人员体内环境污染物残留状况,为实验室生物安全制度的制定提供依据。方法:在江苏省南京、苏州、盐城、淮安4个地区高校内分别选取100例生物医学实验室科研人员和100例非科研人员为研究对象,采用问卷调查了解不同人群接触环境污染物的现状,并进一步收集研究对象的晨尿样本,其中科研人员和非科研人员分别收集到了95例和94例样本。采用β-葡萄糖醛酸苷酶水解法和高效液相色谱-串联质谱法检测尿液中邻苯二甲酸盐[di(2-ethylhexyl)phthalate,DEHP]、双酚A和苯并芘的含量。结果:江苏省内生物医学实验室科研人员尿液中DEHP、双酚A、苯并芘的残留量[(1359.0±251.0)μg/g、(284.4±134.0)μg/g、(109.0±43.2)ng/g)]显著高于对照组人员[(489.7±103.1)μg/g、(177.3±86.4)μg/g、(80.2±31.5)ng/g,P<0.001]。其中苯并芘在南京和苏州地区实验室人员体内含量较高[(132.4±37.1)ng/g、(139.3±32.8)ng/g],DEHP在各地区实验室人员体内没有明显差异,而盐城地区实验室人员体内的双酚A含量最高[(386.1±202.1)μg/g]。结论:江苏省各地区生物医学实验室科研人员体内积累的环境污染物普遍高于非实验室人员,这可能与日常实验室工作相关,因此实验室科研人员更应注重防护。

关键词：生物医学实验室科研人员环境污染物尿液

80 years education of aerospace science and technology in Tsinghua University

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Chinese Journal of Aeronautics 2018年第9期31卷 1797-1804页

作者： Jie LU Yongli GAO Xiaojing WANG Chenyuan BAI bing WANG Ziniu wu School of Aerospace Engineering Tsinghua University

The development of aerospace science and technology largely relies on the education and academic contribution of students in universities covering aerospace science and technology. The School of Aerospace Engineering of Tsinghua University, with a history of eighty years since the set-up of its Department of Aeronautical Engineering in 1938, graduated 5273 undergraduate students, 1939 master students and 931 Ph.D. students. This paper provides an overview and analysis of the data related to undergraduate, master and Ph.D. students of this school. These data include the historical evolution of number of students and the actual status of students like their various interests and academic performance. The data and information shared in this paper may be useful for comparative study and for those who need primitive data to study relevant issues such as mental health of students, promotion of gender balance and educational improvement.

关键词： Academic output Aerospace Education Favorite activity Students

南京市中医DRG分组付费改革的成效、经验与展望

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南京中医药大学学报（社会科学版） 2024年第4期25卷 218-224页

作者：刁仁昌石斌薛虹吴尚勇南京市医疗保障局江苏南京210019

在按疾病诊断相关分组(Diagnosis Related Groups,DRG)付费方式改革大潮中,中医特色和价值优势没有得到充分体现。南京市自2022年起开创中医DRG分组付费方式,改革成效亟须系统性评估。从服务可及性、质效可靠性、费用可控性三个维度对... 详细信息

在按疾病诊断相关分组(Diagnosis Related Groups,DRG)付费方式改革大潮中,中医特色和价值优势没有得到充分体现。南京市自2022年起开创中医DRG分组付费方式,改革成效亟须系统性评估。从服务可及性、质效可靠性、费用可控性三个维度对南京市中医DRG分组付费改革效果进行评估,结果表明,政策实施后,纳入中医DRG分组付费的中医特色病种在服务可及性、质效可靠性、费用可控性上总体呈现出明显优势。机构覆盖率、病组覆盖率和病组病例数均明显增长,中医医疗服务质量和效率明显增强,医保基金对纳入中医DRG分组付费的中医特色病种的倾斜支持力度逐年上升。南京市中医DRG分组付费改革经验主要体现在病证结合、科学编码、就高倾斜和数据赋能等方面,但仍存在分组方案不均衡、证候分型管理有待加强和疗效价值体现不明显等不足。未来,建议进一步扩大DRG分组付费范围,提升服务可及性;协同加强医疗机构院内管理,提升质效可靠性;强化中医医保支付政策引导,提升费用可控性;探索中医疗效价值评价体系,提升支付效能度。

关键词：中医DRG 中医病种医保支付改革评价南京市