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J’ai grandi dans l’Axe central de Beijing

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今日中国（法文版） 2022年第8期60卷 30-31页

作者： cao jingzhou Centre de recherche sur la culture de l’Axe central à l'Institut de recherche sur le développement urbain de Beijing

J’ai grandi à Beijing et j’ai vécu dans le lnitong(allée)de Majuan,à l’angle nord-est de la Cité interdite,et en face de la cour,il y avait le hutong de *** sortant à l’ouest,vous voyez la tour d'angle nord-... 详细信息

关键词： les angle Beijing

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LLC谐振型软开关变换器轻载效率优化控制

控制与信息技术 2018年第4期 13-18页

作者：周峰武张小勇饶沛南曹金洲张庆株洲中车时代电气股份有限公司湖南株洲412001

LLC谐振型软开关变换器在轻载时的效率很低,这是由传统的调频控制方式决定的:轻载时为了稳定输出电压会增加工作频率,进而使变换器关断损耗增加从而降低效率。文章通过分析LLC变换器损耗得到变换器效率负载特性曲线,提出一种使用触发控... 详细信息

LLC谐振型软开关变换器在轻载时的效率很低,这是由传统的调频控制方式决定的:轻载时为了稳定输出电压会增加工作频率,进而使变换器关断损耗增加从而降低效率。文章通过分析LLC变换器损耗得到变换器效率负载特性曲线,提出一种使用触发控制结合PWM调制的方法来代替传统的调频控制法,使电路在全负载范围内以某一固定频率工作,通过调节触发脉冲的占空比来稳定输出电压,最终实现全负载范围内的效率最优化。样机实验结果表明,LLC变换器采用触发PWM控制、工作在最佳频率点策略后,不仅轻载时效率得到显著提高,而且满载效率也可以达到最优。

关键词： LLC变换器软开关关断损耗触发PWM控制轻载效率优化控制

Exploration of Graduate Student Cultivation Mode of Landscape Architecture under the Background of“Artificial Intelligence+X”

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Journal of Landscape Research 2024年第1期16卷 67-69,76页

作者： cao Yangyang ZENG Junfeng College of Horticulture and Gardening Yangtze UniversityJingzhouHubei 434025China

Under the background of“artificial intelligence+X”,the development of landscape architecture industry ushers in new opportunities,and professional talents need to be updated to meet the social *** paper analyzes the cultivation demand of landscape architecture graduate students in the context of the new era,and identifies the problems by comparing the original professional graduate training *** new cultivation mode of graduate students in landscape architecture is proposed,including updating the target orientation of the discipline,optimizing the teaching system,building a“dualteacher”tutor team,and improving the“industry-university-research-utilization”integrated cultivation,so as to cultivate high-quality compound talents with disciplinary characteristics.

关键词： Artificial intelligence+ Landscape architecture Graduate training model Professional talent

Integrated assessment of yield,nitrogen use efficiency and ecosystem economic benefits of use of controlled-release and common urea in ratoon rice production

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Journal of Integrative Agriculture 2024年第9期23卷 3186-3199页

作者： Zijuan Ding Ren Hu Yuxian cao Jintao Li Dakang Xiao Jun Hou Xuexia Wang College of Agriculture Yangtze University/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River(Co-construction by Ministry and Province)Jingzhou 434025China College of Life Science Yangtze UniversityJingzhou 434025China Institute of Plant Nutrition Resources and EnvironmentBeijing Agricultural Forestry Academy SciencesBeijing 100097China

Controlled-release urea(CRU)is commonly used to improve the crop yield and nitrogen use efficiency(NUE).However,few studies have investigated the effects of CRU in the ratoon rice *** rice is the practice of obtaining a second harvest from tillers originating from the stubble of the previously harvested main *** this study,a 2-year field experiment using a randomized complete block design was conducted to determine the effects of CRU on the yield,NUE,and economic benefits of ratoon rice,including the main crop,to provide a theoretical basis for fertilization of ratoon *** experiment included four treatments:(i)no N fertilizer(CK);(ii)traditional practice with 5 applications of urea applied at different crop growth stages by surface broadcasting(FFP);(iii)one-time basal application of CRU(BF1);and(iv)one-time basal application of CRU combined with common urea(BF2).The BF1 and BF2 treatments significantly increased the main crop yield by 17.47 and 15.99%in 2019,and by 17.91 and 16.44%in 2020,respectively,compared with FFP *** BF2 treatment achieved similar yield of the ratoon crop to the FFP treatment,whereas the BF1 treatment significantly increased the yield of the ratoon crop by 14.81%in 2019 and 12.21%in 2020 compared with the FFP *** BF1 and BF2 treatments significantly improved the 2-year apparent N recovery efficiency,agronomic NUE,and partial factor productivity of applied N by 11.47-16.66,27.31-44.49,and 9.23-15.60%,respectively,compared with FFP *** BF1 and BF2 treatments reduced the chalky rice rate and chalkiness of main and ratoon crops relative to the FFP ***,emergy analysis showed that the production efficiency of the BF treatments was higher than that of the FFP *** BF treatments reduced labor input due to reduced fertilization times and improved the economic benefits of ratoon *** with the FFP treatment,the BF1 and BF2 treatments increased the net income by 14.21-16

关键词： ratoon rice controlled-release urea yield nitrogen use efficiency economic benefit

LSP板内嵌轻钢龙骨装配式墙体系统的应用研究

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山西建筑 2020年第9期46卷 44-46页

作者：唐勇高佩娜贺昱华朱鹏飞常传清曹景洲国网甘肃省电力公司庆阳供电公司甘肃庆阳745000

LSP板是一种具有轻质、高强、耐久、节能环保、预制化程度高等优点的新型墙板。介绍了LSP板的材料组成、物理性能、墙板规格及LSP板内嵌轻钢龙骨装配式墙体系统的结构组成、连接构造等。基于LSP板装配式墙体优异的使用性能和装配性能,... 详细信息

LSP板是一种具有轻质、高强、耐久、节能环保、预制化程度高等优点的新型墙板。介绍了LSP板的材料组成、物理性能、墙板规格及LSP板内嵌轻钢龙骨装配式墙体系统的结构组成、连接构造等。基于LSP板装配式墙体优异的使用性能和装配性能,针对高海拔地区变电站建筑的使用特点,在国网公司预制装配式建筑的基础上,提出了一种新的预制装配式墙板门窗洞口加强龙骨构造措施,并对加强龙骨的连接方式和优点进行了介绍。

关键词： LSP板墙体系统加强龙骨

Petroleum accumulation:from the continuous to discontinuous

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Petroleum Research 2017年第2期2卷 131-145页

作者： jingzhou Zhao Qing cao Yubin Bai Chuang Er Jun Li Weitao Wu Wuxian Shen School of Earth Sciences and Engineering Shaanxi Key Laboratory of Petroleum Accumulation GeologyXi'an Shiyou UniversityShaanxi 710065China

Based on the extensive studies of conventional and unconventional hydrocarbon accumulations,the concept,classification and formation as well as distribution of petroleum reservoirs are *** revised concept defined the petroleum reservoir as a continuous hydrocarbon accumulation in a single or a set of reservoirs with an independent or uniform pressure *** terms of the pattern of hydrocarbon accumulation and distribution,the hydrocarbon accumulations are classified into three basic types,i.e.,the continuous accumulation,the quasi-continuous accumulation and the discontinuous *** hydrocarbon accumulation was demonstrated as a process from continuous accumulation to discontinuous accumulation,and therefore these three basic types of hydrocarbon accumulations were *** continuous hydrocarbon accumulation is principally formed in source rocks,and typical examples are shale hydrocarbon reservoirs and coal-bed methane reservoirs;it is mainly characterized by tight-ultra tight reservoirs with permeability of nanodarcy to millidarcy;the hydrocarbons occurred in free,adsorbed or dissolved state;a continuous accumulation comprises actually only a single reservoir,and hydrocarbons are extensively and continuously distributed within the scope of effective source rocks;the accumulation has neither defined boundaries nor bottom or edge water;oil and gas mainly accumulate in situ or near the generation of hydrocarbons with no prominent migration;this hydrocarbon accumulation process is basically not controlled by *** quasicontinuous hydrocarbon accumulation mostly occurs in the tight reservoirs adjacent to source rocks,and typical examples are most of tight hydrocarbon reservoirs;the hydrocarbons are distributed quasicontinuously in large areas,and each quasi-continuous hydrocarbon accumulation includes numerous adjacent small-to medium-size reservoirs;reservoirs of this kind of hydrocarbon accumulation have no defined boundaries,no or on

关键词： Petroleum reservoirs Continuous hydrocarbon accumulation Quasi-continuous accumulation Discontinuous accumulation

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基于超声影像的下腔静脉自动识别与定位

海军军医大学学报 2024年第9期45卷 1107-1112页

作者：杨敬涵陈子叶孙景源曹文吕朝阳李硕李明秋张普徐径舟周昌杨宇祥张甫李庆利郭瑞君陈建刚华东师范大学上海市多维度信息处理重点实验室上海200241 西交利物浦大学智能工程学院苏州215123 利物浦大学计算机科学系利物浦L693BX 首都医科大学附属北京朝阳医院超声医学科北京100020 保定骨科医院普外科保定071000 湖南师范大学工程与设计学院电子工程系长沙410081

目的探究基于下腔静脉(IVC)超声影像的IVC自动识别与直径测量方法。方法提出一种基于拓扑结构与自动跟踪算法的IVC自动识别与定位方法,采用跟踪方式对数据集进行IVC识别和连续定位,以提高测量的效率和准确性。以超声医师的人工测量结果... 详细信息

目的探究基于下腔静脉(IVC)超声影像的IVC自动识别与直径测量方法。方法提出一种基于拓扑结构与自动跟踪算法的IVC自动识别与定位方法,采用跟踪方式对数据集进行IVC识别和连续定位,以提高测量的效率和准确性。以超声医师的人工测量结果作为金标准,在采集自ICU的18例患者的18组超声数据集上进行测试。结果自动化算法识别准确率为94.44%(17/18),IVC直径自动测量误差在±1.96s(s为标准差)范围内,表明自动测量方法可替代人工测量方法。结论本研究提出的基于拓扑结构与自动跟踪算法的IVC自动识别与定位算法具有较高的识别成功率及IVC直径测量准确性,可以辅助临床医师进行IVC的识别定位与直径测量。

关键词：超声图像下腔静脉血管识别与定位自动化测量

Petroleum Accumulation:from Continuous to Discontinuous

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Acta Geologica Sinica(English Edition) 2015年第A1期89卷 303-306页

作者： ZHAO jingzhou cao Qing BAI Yubin ER Chuang LI Jun WU Weitao SHEN Wuxian School of Earth Sciences andEngineering Xi'an Shiyou University Xi'an Shaanxi 710065 Shaanxi Key Laboratory of Petroleum Accumulation Geology Xi'an Shiyou University Xi'an Shaanxi 710065

1 Introduction Petroleum accumulations from the Earth＇s crust can be grouped into conventional and unconventional ones. The history of the world＇s petroleum exploration is a history from the exploration of conventio... 详细信息

关键词： BIOACCUMULATION PETROLEUM HYDROCARBONS EARTH (Planet) PETROLEUM distribution CRUST

新时代我国体文旅产业融合发展:逻辑、模式、问题与路径

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山东体育学院学报 2024年第1期40卷 70-79页

作者：潘怡曹胡丹封慧广西师范大学体育与健康学院广西桂林541006 长江大学教育与体育学院湖北荆州434023 国防科技大学研究生院湖南长沙410073

体文旅产业融合发展对助力中国式现代化体育产业体系构建具有一定的现实意义。该研究运用文献资料、逻辑分析等方法,以体文旅产业融合发展的现实逻辑、政策逻辑和理论逻辑为基础,梳理并厘清了新时代我国体文旅产业融合发展的模式机制、... 详细信息

体文旅产业融合发展对助力中国式现代化体育产业体系构建具有一定的现实意义。该研究运用文献资料、逻辑分析等方法,以体文旅产业融合发展的现实逻辑、政策逻辑和理论逻辑为基础,梳理并厘清了新时代我国体文旅产业融合发展的模式机制、现实问题及提升路径。研究认为,新时代我国体文旅产业融合发展模式主要包括交叉渗透模式、互动延伸模式、分解重组模式;其互动机制主要包括资源共享机制、内容技术机制、业态聚集机制及多元协同机制。新时代我国体文旅产业融合发展面临政策合力缺乏,关联互补不强;模式存在缺陷,融合效益较低;内容技术受阻,多元协同失位等问题。基于此,该研究建议加强顶层制度设计,保障体文旅产业政策落地;优化产业融合模式,提升体文旅产业融合效益;创新产业内容技术,推进体文旅产业多元协同。

关键词：体育产业文化产业旅游产业体文旅产业产业融合高质量发展

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