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个体化知信行健康教育模式改善PTBD术后护理效果的研究

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临床医学研究与实践 2017年第13期2卷 2-4页

作者：程亚丽冯爱芳侯美蓉薛峰西安交通大学第一附属医院肝胆外科陕西西安710061

目的分析个体化的知信行健康教育对于PTBD术后患者并发症的改善情况,探索科学有效的健康教育模式,为提高PTBD患者术后的护理水平提供理论依据。方法研究对象为2011年1月至2014年8月就诊于我院肝胆外科行PTBD术患者,将研究对象随机分为... 详细信息

目的分析个体化的知信行健康教育对于PTBD术后患者并发症的改善情况,探索科学有效的健康教育模式,为提高PTBD患者术后的护理水平提供理论依据。方法研究对象为2011年1月至2014年8月就诊于我院肝胆外科行PTBD术患者,将研究对象随机分为干预组和对照组,干预组在进行常规健康教育的基础上给予个体化知信行健康教育,对照组进行常规健康教育,比较两组患者PTBD术后脱管和感染的发生情况。结果干预组患者对疾病和PTBD术相关知识的了解程度、心理状态、对待治疗态度及术后带管时间的接受程度,出院后对引流管的自我护理情况均显著优于对照组(P<0.05);干预组患者脱管和术后感染的发生率均显著低于对照组(P<0.05)。结论个性化知信行健康教育能够有效改善PTBD术后护理效果,降低脱管和术后感染的发生率。

关键词：知信行模式健康教育经皮肝胆管穿刺引流术

Small modifications of endo-functionalized cavities lead to large changes in molecular interaction in water

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Science China Chemistry 2025年第1期 369-376页

作者： Song-Meng Wang Hao Nian Yan-fang Wang li-Shuo Zheng Yu-Tao Zheng Yi-Wei Dong liping Huang Xiaoping Wang Wei Jiang liu-Pan Yang Department of Chemistry Southern University of Science and Technology School of Chemistry and Pharmaceutical Sciences State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesGuangxi Normal University School of Pharmaceutical Science Hengyang Medical School University of South China

Studying molecular recognition in aqueous environments is crucial for understanding biological processes. Herein, we present a series of N-doped endo-functionalized anthracene-based cavities by introducing inward-directed pyridine units. The subtle modifications can significantly affect the binding properties of these receptors, which is similar to the mutations in biological systems. Combining theoretical calculations and molecular recognition experiments demonstrated that these “mutations” have an impact on the hydrophobicity and charge distribution of the hosts, consequently significantly influencing molecular *** is crucial for understanding the intricate mechanisms of molecular-level interactions in biological receptors.

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Impacts of Startup,Shutdown and Load Variation on Transient Temperature and Thermal Stress Fields within Blades of Gas Turbines

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Journal of Thermal Science 2022年第3期31卷 727-740页

作者： CAI liuxi hou Yanfang li fang li Yun WANG Shunsen MAO Jingru School of Chemical Engineering and Technology Xi’an Jiaotong UniversityXi’an710049China State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong UniversityXi’an710049China

Based on the actual operation parameters and temperature-dependent material properties of a gas turbine unit,composite cooling blade model and corresponding reliable boundary conditions were *** thermal-fluid-solid coupling simulations were then comprehensively conducted to analyze the transient flow and the temperature field of the blade under startup,shutdown,and variable loads *** with the obtained transient temperature data,the non-linear finite element method was exploited to examine the effect of these transient operations on the turbine blade thermal stress *** show that the temperature and pressure on the blade surface increase with the load level and vice *** the startup process progresses,the film cooling effectiveness and the heat convection of airflows inside the blade continuously grow;high-temperature areas on the pressure surface and along the trailing edge of the blade tip gradually *** high-temperature zones with the maximum of 1280 K are generated at the air inlet and outlet of the blade platform and the leading edge of the blade *** high thermal stresses detected on the higher temperature side of the temperature gradient are commonly generated in places with large temperature gradients and significant geometry *** the startup/shutdown process,the rate of increase/decrease of the thermal stress is positively correlated with the load variation rate.A slight variation rate of the load(1.52%/min)can lead to an apparent alteration(41%)to the thermal *** operations under action of the variable load,although thermal stress is less sensitive to the load variation,the rising or falling rate of the exerted load still needs to be carefully controlled due to the highly leveled thermal stresses.

关键词： composite cooling blade thermal-fluid-solid coupling method transient temperature field load variation thermal stress

The assessment of extactable tidal energy and the effect of tidal energy turbine deployment on the hydrodynamics in Zhoushan

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Acta Oceanologica Sinica 2015年第5期34卷 86-91页

作者： hou fang BAO Xianwen li Benxia liU Qianqian National Marine Environmental Forecasting Center College of Physical and Environmental Oceanography Ocean University of China Graduate School of Oceanography University of Rhode Island

In this study, we construct one 2-dimensional tidal simulation, using an unstructured Finite Volume Coastal Ocean Model （FVCOM）. In the 2-D model, we simulated the tidal turbines through adding additional bottom drag in the element where the tidal turbines reside. The additional bottom drag was calculated from the relationship of the bottom friction dissipation and the rated rotor efficiency of the tidal energy turbine. This study analyzed the effect of the tidal energy turbine to the hydrodynamic environment, and calculated the amount of the extractable tidal energy resource at the Guishan Hangmen Channel, considering the rotor wake effect.

关键词： extractable tidal energy resource rotor wake effect tidal energy turbine

Cyclocopolymerization of 1,6-heptadiene with ethylene by half-sandwich scandium catalysts

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Science China Chemistry 2014年第8期57卷 1150-1156页

作者： GUO fang NISHIURA Masayoshi li Yang hou ZhaoMin State Key Laboratory of Fine Chemicals Department of Polymer Science and Engineering School of Chemical EngineeringDalian University of Technology Organometallic Chemistry Laboratory RIKEN Advanced Catalysis Research Group RIKEN Center for Sustainable Resource Science

The cyclocopolymerization of 1,6-heptadiene （HPD） with ethylene （E） by a series of half-sandwich scandium alkyl catalysts bearing various auxiliary ligands have been examined. Significant ligand influence on the copolymerization activity and selectivity was observed. In combination with one equivalent of [Ph3C][B（C6F5）4], the half-sandwich scandium dialkyl complexes bearing a Lewis base THF （1） or an NHC side arm （2） yielded the copolymer products together with cross-linked polymers in the copolymerization of HPD with ethylene. In contrast, the THF-free complexes Cp＇Sc（CH2C6H4NMe2-o）2 （3： Cp＇ = C5H5; 4： Cp＇ = CsMe4SiMe3） and the phosphine oxide side-arm containing complex （C5Me4SiMe2CH2（O）PPh2）Sc（CH2SiM%）2 （5） showed excellent activity and selectivity for the cyclocopolymerization reaction, without giving cross-linked products. The 1H and 13C NMR analyses revealed that the resulting copolymers consist of E-E sequences and six-membered ring methylene-1,3-cyclohexane （MCH） and five-membered ring ethylene-1,2-cyclopentane （ECP） units. The HPD content in the co- polymer products could be easily controlled by changing the feeding amount of HPD under 1 atm of ethylene.

关键词： scandium 1 6-heptadiene ethylene cyclopolymerization copolymerization

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Reaction mechanisms for 0.5li_2MnO_3 ·0.5liMn_(0.5)Ni_(0.5)O_2 precursor prepared by low-heating solid state reaction

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International Journal of Minerals,Metallurgy and Materials 2012年第9期19卷 856-862页

作者： Dong li fang lian Xin-mei hou Kuo-chih Chou School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China Department of Physical Chemisitry University of Science and Technology Beijing Beijing 100083 China

lithium-excess manganese layered oxides, which are commonly described in chemical formula 0.5li2MnO3·0.5liMn0.5Ni0.5O2, were prepared by low-heating solid state reaction. The reaction mechanisms of synthesizing precursors, the decomposition mechanism, and intermediate materials in calcination were investigated by means of Fourier transform infrared spectroscopy （FT-IR）, X-ray diffraction （XRD）, field emission scanning electron microscopy （FESEM）, thermogravimetric analysis （TGA）, and differential scanning calorimetry （DSC）. The major diffraction patterns of 0.5li2MnO3·0.5liMn0.5Ni0.5O2 powder calcinated at 720℃ for 15 h are indexed to the hexagonal structure with a space group of R3m, and the clear splits of doublets at （006）/（102） and （108）/（110） indicate that the sample adopts a well-layered structure. FESEM images show that the size of the agglomerated particles of the sample ranges from 100 to 300 nm.

关键词： lithium batteries electrode manganese oxide solid state reactions calcination

A facile synthesis of supported amorphous iron oxide with high performance for Cr(Ⅵ) removal from aqueous solution under visible light irradiation

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Journal of Materials Science & Technology 2019年第3期35卷 323-329页

作者： Xianliang hou Zhen Wang Changqing fang Youliang Cheng Tiehu li Faculty of Printing Packaging Engineering and Digital Media Technology Xi’an University of Technology School of Materials Science and Engineering Northwestern Polytechnical University

A series of supported iron oxide nanoparticles were prepared by impregnation with Fe(NO_3)_3 supported on TiO_2,followed by low-temperature calcination. Scanning electron microscopy(SEM), X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS), UV–vis diffuse reflectance spectra and BET have been used to characterize the samples. These iron oxide-impregnated TiO_2 were examined for photocatalytic reduction of Cr(Ⅵ). The experiments demonstrated that Cr(Ⅵ) in aqueous solution was more efficiently reduced using Fe_2O_3/TiO_2 heterogeneous photocatalysts than either pure Fe_2O_3 or TiO_2 under visible light irradiation. All TiO_2 supported samples were somewhat active for visible light photoreduction. With an optimal mole ratio of 0.05-Fe/Ti, the highest rate of Cr(Ⅵ) reduction was achieved under the experimental conditions. We also compared the photoreactivity of TiO_2 supported iron oxide samples with that supported on Al_2O_3 and ZrO_2. It can be noted that iron oxide nanoparticles deposited on high surface area supports to increase the solid-liquid contact area renders it considerably more active. Noticeably,iron oxide cluster size and dispersion are important parameters in synthesizing active, supported Iron oxide nanoparticles. In addition, the interaction between iron oxide and TiO_2 was proposed as the source of photoactivity for Cr(Ⅵ) reduction.

关键词： Chromium(Ⅵ) removal Iron oxide Photoreduction Photocatalysis

高校师生关系现状的调查与分析——当代大学生心理健康问题预防与干预机制研究之一

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河西学院学报 2016年第5期32卷 92-96页

作者：杨斌芳李梅侯彦斌王晓丽兰州城市学院城市社会心理研究中心甘肃兰州730070 陕西师范大学心理学院陕西西安710062

随着大学生面临的矛盾、冲突以及压力的剧增,心理健康问题已成为影响大学生发展的核心要素,也成为困扰众多高校管理的关键因素.教师和学生是高校的主体,师生关系是影响大学生心理健康问题的主要因素.该研究采用问卷调查法,随机选取某高... 详细信息

随着大学生面临的矛盾、冲突以及压力的剧增,心理健康问题已成为影响大学生发展的核心要素,也成为困扰众多高校管理的关键因素.教师和学生是高校的主体,师生关系是影响大学生心理健康问题的主要因素.该研究采用问卷调查法,随机选取某高校354名学生,考察高校师生关系的现状.结果发现:目前高校师生关系存在的问题,集中反映在交流频率低,交流方式单一,交流内容狭窄等方面;而教师与学生交流所用时间和精力是影响高校师生交流的症结所在.

关键词：高校师生关系心理健康教育

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血清雌二醇水平分析方法研究进展

生殖与避孕 2016年第12期36卷 1017-1024页

作者：普天磊薛嫚沈慈丹曾佳李芳侯安国俸灵林陈建兴云南中医学院中药学院昆明650500 上海市计划生育科学研究所国家人口和计划生育委员会计划生育药具重点实验室上海生殖健康药具工程技术研究中心上海200032

血清雌二醇(estradiol,E_2)水平的检测是重要的临床指标和实验评价手段。由于生物种属的差异、测定目的和测定要求的不同,所选择的分析方法也不尽相同。本文对目前血清E_24种常用的分析方法:色谱质谱联用法、放射免疫测定法、酶免疫分... 详细信息

血清雌二醇(estradiol,E_2)水平的检测是重要的临床指标和实验评价手段。由于生物种属的差异、测定目的和测定要求的不同,所选择的分析方法也不尽相同。本文对目前血清E_24种常用的分析方法:色谱质谱联用法、放射免疫测定法、酶免疫分析法、化学发光免疫分析法进行综述和评价,以期为从事临床检测、临床研究、药学研究和分析方法开发的工作人员提供参考和依据。

关键词：雌二醇(E2) 色谱质谱联用法放射免疫测定法9酶免疫分析法化学发光免疫分析法