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Optimization of construction scheme and supporting technology for HJS soft rock tunnel

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International Journal of Mining Science and Technology 2014年第6期24卷 847-852页

作者： Wang Shuren li chunliu liu Zhaowei Fang Junbo School of Civil Engineering and Mechanics Yanshan University Opening Laboratory for Deep Mine Construction Henan Polytechnic University Institute of Urban Construction Hebei Normal University of Science & Technology China Railway Tunnel Group Co. Ltd.

For a soft rock tunnel under high stress in jointed and swell soft rock （HJS）, two construction schemes pilot-tunneling enlarging excavation and step-by-step excavation were optimized using FLAC20, and the deformation effects of the two construction schemes were verified by field tests. Based on engineer- ing geological investigation and mechanical analysis of large deformations, the complex deformation mechanisms of stress expansion and structural deformation of the soft rock tunnel were confirmed, and support countermeasures from the complex deformation mechanism converted to a single type were proposed, and the support parameters were optimized by field tests. These technologies were proved by engineering practice, which produced significant technical and economic benefits.

关键词： Soft rock tunnel High stress Deformation mechanism Support parameters Optimization

Analysis of Hospitalization Costs and Influencing Factors of AKI in Adult Patients

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Journal of Clinical and Nursing Research 2024年第3期8卷 26-31页

作者： Yan-li Gou Hong-Fang Zhang Yang Huang Chun-ling Sun chunliu li Qun Zuo Xi-Jie Zheng Department of Nephrology Affiliated Hospital of Hebei UniversityBaoding 071000China Tianjin Beichen Center for Disease Control and Prevention Tianjin 300400China Hebei University Baoding 071000China Baoding Third Central Hospital of Hebei Province Baoding 071000China

Objective:To investigate the economic burden of patients with acute kidney injury(AKI)by analyzing the distribution of hospitalization expenses and its influencing factors in the Affiliated Hospital of Hebei ***:The hospitalization information of patients with AKI from January 2020 to January 2023 was collected and sorted through the hospital charging system and the factors affecting the total hospitalization cost were analyzed by multiple linear ***:Univariate analysis showed that age,occupation,marriage,length of hospitalization,recovery of renal function,and stage of AKI had significant effects on hospitalization cost(Plinear regression analysis model showed that age(t=4.11,Plization(t=16.10,Plity of the medical services *** will reduce the economic burden of patients.

关键词： Acute kidney injury Hospital expenses Age classification Influencing factor

翻转课堂结合危急值案例解读在医学检验教学中的应用效果

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中国继续医学教育 2024年第10期16卷 116-120页

作者：蔡欣冉德园李春柳曹善楠滨州医学院烟台附属医院检验科山东烟台264100 滨州医学院烟台附属医院教育处山东烟台264100

目的探讨翻转课堂结合危急值案例解读在检验科教学中的应用效果。方法选取2020年6月—2022年7月于滨州医学院烟台附属医院检验科26名实习生为研究对象,将2020年6月—2021年7月采取常规带教期间的13名实习生设为对照组,2021年8月—2022... 详细信息

目的探讨翻转课堂结合危急值案例解读在检验科教学中的应用效果。方法选取2020年6月—2022年7月于滨州医学院烟台附属医院检验科26名实习生为研究对象,将2020年6月—2021年7月采取常规带教期间的13名实习生设为对照组,2021年8月—2022年7月采取翻转课堂结合危急值案例解读期间的13名实习生设为观察组。比较2组考试成绩、学习能力、学习积极性、教学评价结果。结果培训前2组基础理论知识、实验操作能力、危急值知识掌握、危急值处理能力得分比较,差异无统计学意义(P> 0.05);培训后2组考试成绩均提高,且观察组基础理论知识、实验操作能力、危急值知识掌握、危急值处理能力得分高于对照组,差异有统计学意义(P <0.001)。观察组自我导向学习能力评定量表中的学习意识、学习策略、学习行为、学习评价、人际关系评分高于对照组,差异有统计学意义(P<0.001)。观察组学习积极性中的学习态度、学习注意力、学习情绪与意志状态评分高于对照组,差异有统计学意义(P <0.001)。观察组教学评价中的课程设计、教学能力、教学态度、教学责任心、分析解决问题能力、锻炼沟通能力、培养思维能力评分高于对照组,差异有统计学意义(P <0.001)。结论翻转课堂结合危急值案例解读在检验科教学中的应用效果良好,可提高教学成效,提高学生的学习积极性、学习能力,提升教学评价满意度。

关键词：检验科翻转课堂危急值案例解读学习能力学习积极性教学评价

Phase diagram of Er-Sn-Te system for diluted magnetic semiconductor developments

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Journal of Rare Earths 2013年第8期31卷 800-803页

作者：张广华湛永钟李春流 College of Materials Science and Engineering Guangxi University

Phase diagrams of the RE （rare earth）-Ⅳ-Ⅵ systems are very important for the design of rare earth doped diluted magnetic semiconductors （DMSs）, but related information is very limited. In this work, the phase equilibria of the Er-Sn-Te system in whole compositional range at room temperature were investigated mainly by means of X-ray powder diffraction （XRD） and differential thermal analysis （DTA）. The existences of 9 binary compounds, i.e., SnTe, ErTe3, EraTe3, ErTe, ErsSn3, Er11Sn10, ErSn2, Er3Sn7 and Er2Sn5 were confirmed. The phase diagram consisted of 12 single-phase regions, 21 binary phase regions and 10 ternary phase re- gions. The maximum solid solubility of Er in SnTe was determined to be about 7.5 at.%, none of the other phases in this system re- vealed a remarkable homogeneity range at room temperature. No ternary compound was found in this work.

关键词： phase diagram Er-Sn-Te system diluted magnetic semiconductors rare earths

Worm-like micelles facilitate the intestinal mucus diffusion and drug accumulation for enhancing colorectal cancer therapy

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Chinese Chemical Letters 2024年第6期35卷 427-432页

作者： Yihan Zhou Duo Gao Yaying Wang li liang Qingyu Zhang Wenwen Han Jie Wang chunliu Zhu Xinxin Zhang Yong Gan State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China School of Chinese Materia Medica Nanjing University of Chinese MedicineNanjing 210023China University of Chinese Academy of Sciences Beijing 100049China NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients National Institutes for Food and Drug ControlBeijing 100050China School of Pharmacy Shanghai University of Traditional Chinese MedicineShanghai 201203China

Local delivery of nanoparticles holds promise for colorectal cancer(CRC)***,the presence of the mucus layer on the epithelium poses a significant challenge to drug delivery,thereby adversely affecting treatment *** is crucial to develop efficient drug delivery carriers that can effectively overcome mucus barriers to treat colorectal ***,we utilized poly(1,4-butadiene)-b-poly(ethylene oxide)polymers to prepare four distinct geometries of polymeric micelles,namely linear micelles(LMs),worm-like micelles(WLMs),large spherical micelles(LSMs),and small spherical micelles(SSMs)to investigate the influence of shape effects on overcoming colonic mucosal *** found that the carriers exhibited diverse shapes while maintaining comparable physicochemical *** these,WLMs had an aspect ratio similar to segmented filamentous bacteria,which exhibited superior mucus penetration ability,leading to prolonged drug release kinetics and faster entry into epithelial cells compared to ***,rectally administrated 10-hydroxycamptothecin-loaded WLMs traversed the colorectal mucus in orthotopic CRC nude mice model,penetrated and accumulated within tumor tissue,and effectively aggregated within cancer cells,thereby inducing significantly robust antitumor outcomes in *** findings underscore the significance of shape design in overcoming colonic mucosal absorption barriers,offering a novel approach for the development of drug delivery carriers tailored for effective tumor therapy.

关键词： Worm-like micelles Mucus penetration Shape dependent Transmucosal delivery Colorectal cancer

STRUCTURAL DESIGN OF ONliNE LEARNING SYSTEM OF DESCRIPTIVE GEOMETRY

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STRUCTURAL DESIGN OF ONLINE LEARNING SYSTEM OF DESCRIPTIVE G...

均匀化处理对5083铝合金铸锭组织与性能的影响

第十一届几何与图学国际会议

作者： Mo chunliu Tang Chaolan li BingGuangDong University of Technology P.R.China (Guangzhou 510090)

＜正＞While organizing all information in multimedia database of online learning system for descriptive geometry, in order to guide students to search information effectively, we should clearly lay out connections of all teaching information by reasonable organization of contents, and design navigational routes and ways according to structural characters of the system.

关键词： descriptive geometry online structural design navigational design

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金属热处理 2014年第8期39卷 101-104页

作者：蒙玲赵启忠李春流何建贤广西南南铝加工有限公司广西南宁530031

通过常温拉伸试验、硬度测试、电导率检测以及扫描电镜分析,对比分析不同工艺均匀化处理后5083铝合金铸锭的组织与性能,发现不同均匀化处理工艺对铸锭的微观组织与性能有显著的影响。结果表明,通过420℃×2 h+510℃×10 h的双级均匀化... 详细信息

通过常温拉伸试验、硬度测试、电导率检测以及扫描电镜分析,对比分析不同工艺均匀化处理后5083铝合金铸锭的组织与性能,发现不同均匀化处理工艺对铸锭的微观组织与性能有显著的影响。结果表明,通过420℃×2 h+510℃×10 h的双级均匀化处理后,合金获得最优的微观组织与综合力学性能。

关键词： 5083铝合金均匀化处理组织与性能

健康中国背景下加快推动我国健康建筑新业态创新发展的思考

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建筑经济 2022年第6期43卷 22-27页

作者：徐双军李岩松曹胜昔李春柳河北科技师范学院河北秦皇岛066004 河北省绿色低碳创新发展研究中心河北秦皇岛066004 北方工程设计研究院有限公司河北石家庄050000

健康建筑是建筑领域落实“健康中国”战略的重要抓手。本文以河北省某健康建筑项目为例,从技术体系特点、成本预期、促进企业转型发展等方面阐述健康建筑的新业态特征,在此基础上,从标准体系、政策引导和科技创新等角度分析我国健康建... 详细信息

健康建筑是建筑领域落实“健康中国”战略的重要抓手。本文以河北省某健康建筑项目为例,从技术体系特点、成本预期、促进企业转型发展等方面阐述健康建筑的新业态特征,在此基础上,从标准体系、政策引导和科技创新等角度分析我国健康建筑新业态高质量创新发展路径。

关键词：健康建筑新业态发展创新路径

何以为用:智能手机使用与乡村老年女性数字贫困研究

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中国网络传播研究 2022年第1期 62-81,202-203页

作者：乔同舟李春柳华中农业大学广告与传播学系华中农业大学

本文以智能手机的使用为切入点,探寻乡村老年女性数字贫困的具体特征和影响因素。通过对冀东新村老年女性手机使用水平的分析,研究发现:乡村老年女性的智能手机使用水平整体不高,存在着不同程度的数字贫困,而影响乡村老年女性智能手机... 详细信息

本文以智能手机的使用为切入点,探寻乡村老年女性数字贫困的具体特征和影响因素。通过对冀东新村老年女性手机使用水平的分析,研究发现:乡村老年女性的智能手机使用水平整体不高,存在着不同程度的数字贫困,而影响乡村老年女性智能手机使用的关键因素之一,是她们对是否有用的理解。实用性观念既可以是普通用户接受新技术的动力,同样也可以是乡村老年女性群体采纳智能手机的障碍。实用性表面上是乡村老年女性对智能手机是否有用的认识,实则反映了他们对自身使用价值的评判,以及家庭和社会对老年人角色及其价值的观念投射。因此,重新考虑老年人的价值和需求,重建老年人的个人价值感和自我效能感,当是乡村老年女性数字贫困治理的关键。

关键词：数字贫困信息传播技术智能手机使用水平实用性