130 research outputs found

    鄂尔多斯盆地姬塬地区长6 储层矿物含量与孔隙度的线性关系

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    矿物含量是影响储层物性的重要因素之一。为了较全面地分析不同类型矿物含量对储层孔隙度的影响,以鄂尔多斯盆地姬塬地区长6 砂岩储层为例,探索性地运用多元逐步线性回归法分析了石英含量(x1)、长石含量(x2)、岩屑含量(x3)、绿泥石含量(x4)、伊利石含量(x5)、高岭石含量(x6)、硅质含量(x7)以及铁方解石含量(x8)与孔隙度(y)的关系,建立了矿物含量(xi)与孔隙度(y)之间的回归模型:y = 21.131-0.086 x2-0.113 x3-0.554 x4-0.370 x5-0.199 x6-0.659 x7-0.465 x8。结果表明:绿泥石、伊利石、硅质含量及铁方解石含量对长6 储层孔隙度的影响较大,而长石、岩屑、高岭石含量对孔隙度影响较小,石英含量对孔隙度几乎没有影响。对多元回归模型的检验发现,实测孔隙度与模型孔隙度之间具有较好的拟合度,多元逐步回归分析法在多因素影响储层物性问题研究中具有一定的优越性,相比单因素分析法更能揭示出影响储层物性的本质

    How will individual charity develop in the process of professionalization

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    慈善事业发展从传统走向现代,从个体走向组织化、专业化,不仅是慈善资源分配效用最大化的内在需要,也是避免由于信息不对称而可能产生各种慈善纠纷的理性选择。2016年末几度反转、广受关注的罗尔事件以及分裂、纷扰、情绪化的舆情反映了我国的个体慈善方兴未艾却又“疑云密布”。如果放任自流,殃及的终将是专业慈善和个体慈善共同的土壤和情感根基——社会爱心。基于此,本文从罗尔事件出发,通过理论溯源、国际借鉴以及逻辑推理,回答个体慈善的宏观走向问题。 首先,本文肯定了个体慈善存在的必然性和绝对性。作为“爱心”的两种不同表达方式和两个发展阶段,个体慈善与专业慈善同根同源,且功能互补、互促互进,有效的慈善供给离不开...The development of charity, from traditional to modern, from individual to organized and professional, is not only the intrinsic need of maximizing the effects of charity resource allocation, but also the reasonable choice to avoid all kinds of charity disputes because of asymmetrical information . At the end of 2016, the turning and widespread concerned Rolle event, and the split, confused and...学位:管理学硕士院系专业:公共事务学院_社会保障学号:1392014115048

    Research on Brand Strategy System of Performing Type of Tourism Products in China

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    随着表演类旅游产品的不断成熟和发展,品牌的重要性日益突出,并日渐成为表演类旅游产品竞争的主要手段,表演类旅游产品品牌战略体系的构建也就成了一个势在必行的事情。基于此,本文在借鉴有形商品品牌经营成果的基础上,提出了表演类旅游产品实施品牌战略的理论体系和框架,以期能够我国表演类旅游产品的品牌经营及理论研究有所启示。本文采用归纳与演绎、系统研究法和案例分析法相结合的方法,对国内旅游表演及其产品的相关理论进行了整理和分析,明确界定了表演类旅游产品,详细阐述了表演类旅游产品及其品牌发展的历程,并提出了表演类旅游产品品牌发展的未来趋势。紧接着,着重分析了表演类旅游产品品牌实行品牌经营构建品牌战略体系的动因...With the development of performing type of tourism products, the importance of brand stands out and becomes the main means of competition, which means the construction of its brand strategy system has become an essential matter.For this, based on the results of visible brands operating, the brand strategy theoretical system and framework of performing type of tourism products are proposed in this ...学位:管理学硕士院系专业:管理学院旅游系_旅游管理学号:20043900

    基于SWOT分析的民营旅游企业发展对策研究

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    鉴于近年来旅游业的迅猛发展和民营企业投资领域的开放,民营企业投资旅游业也呈现出势不可挡的趋势。本文基于SWOT分析法对民营旅游企业开发旅游业的内部优势、劣势、外部机遇、挑战的详细和系统的分析和阐述,进一步提出了民营旅游企业发展的对策

    肾移植患者伏立康唑与他克莫司药物相互作用的病例分析

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    目的探讨他克莫司(TAC)和伏立康唑(VRC)相互作用的机制,为临床合理用药提供依据。方法观察分析1例服用TAC的肾移植术后随访患者,在应用VRC治疗肺部真菌感染前后,TAC体内药物浓度的变化。结果联合用药前,TAC平均谷浓度C0为4.95ng·m L-1(4.3~6.0 ng·m L-1),平均C0/D为2.475 ng/(mg·m L)(2.15~3.0 ng/(mg·m L)),合用VRC后,C0为27.0ng·m L-1,C0/D为13.5 ng/(mg·m L),比未用VRC之前C0/D升高了445.5%。结论长期服用TAC的肾移植术后患者在应用VRC治疗肺部真菌感染时,应综合考虑患者遗传因素(CYP2C19和CYP3A5基因多态等)和非遗传因素,个体化给药。二者相互作用的机制是:VRC抑制肝脏CYP3A4/CYP3A5酶,使TAC的药物浓度显著升高;CYP2C19和CYP3A5基因多态在TAC与VRC相互作用中起了重要作用

    视野与方法:科举民俗文化遗产保护融合路径探究

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    中国科举民俗文化集中反映了民众对考试,对教育的理解水平、认同程度、行为方式,具有重要的历史价值与学术价值。科举民俗文化遗产资源丰富,类型多样,保护难度较大,宜采用多种方法结合的保护策略,具体做法是:以预防性保护理念树立"提前"保护意识;以登录保护制度树立"整体"保护意识,在记录方式上博取众家之长,根据保护类型和目标,仿照古代方志、古代笔记记录整理,还可采用口述史方法补充素材。科举民俗文化遗产保护的最终目的是通过技术层面的多元实践,实现既体现文化传承又反映科学创新,既有历史内涵又有社会情怀的文化遗产保护目标。2013年度教育部人文社会科学研究西部规划基金项目“明清云南科举文献整理及研究”(13XJA751004

    Association between Methylenetetrahydrofolate Reductase Gene Single Nucleotide Polymorphisms and Lower Extremity Atherosclerotic Disease

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    目的:研究汉族人群中亚甲基四氢叶酸还原酶(methylene-tetrahydrofolate reductase,MTHFR)基因多态性与下肢动脉粥样硬化(lower extremity atherosclerotic disease,LEAD)的相关性。方法:收集福建省闽南地区384例(LEAD者224例,健康者160例)的临床资料及外周血;LEAD检查采用踝肱指数(ABI)、趾肱指数(TBI)、多普勒彩超和其他影像学检查等手段;选取MTHFR基因rs1801133、rs1801131、rs2274976、rs4846048、rs3737966、rs1537515、rs4846049、rs3834044、rs13306561和rs3737964等10个单核苷酸多态性(single nucleotide polymorphisms,SNP)位点进行基质辅助激光解吸电离飞行时间质谱分析技术(matrix-assisted laser desorption ionization-time of flight,MALDI-TOF)的基因分型。结果:10个SNP位点均符合HardyWeinberg平衡;rs4846048与rs3737966等37个位点之间存在明显连锁不平衡现像(D'均大于0.9);MTHFR基因GCCTCGGAAT单倍型在LEAD和正常组的分布差异有统计学意义(P=0.02);等位基因频率的χ~2检验显示rs1801131(OR=1.287);rs4846048(OR=1.844,P=0.02);rs3737966(OR=1.339);rs4846049(OR=1.314)和rs3737964(OR=1.522);且rs4846048位点的趋势χ~2检验(cochran-armitage trend test,TREND)、显性基因检验(Dominant gene action test,DOM)均显示LEAD与正常组之间分布频率的差异有统计学意义(P 0. 9) and so on. There were significant differences( P = 0. 02) in GCCTCGGAAT haplotypes of MTHFR gene groups between LEAD cases and the normal groups. The results from chi-square test of allele frequencies suggested rs1801131( OR = 1. 287),rs4846048( OR = 1. 844,P = 0. 02),rs3737966( OR =1. 339),rs4846049( OR = 1. 314) and rs3737964( OR = 1. 522). Significant differences( P < 0. 05) were observed between LEAD and the normal groups in Cochran- Armitage trend test and Dominant gene action test of rs4846048. Conclusion: The SNP of rs1801131,rs4846048,rs3737966,rs4846049 and rs3737964 might be associated with the susceptibility of LEAD,and rs4846048 gene mutation might serve as a risk factor for LEAD in the community-based population.2013年度南京军区医学科技创新课题(编号:MS098);; 解放军第175医院青年苗圃基金项目(编号:13Y015

    Study on Raman Spectra of Several Conformations of Thiophenol on Gold

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    用Gaussian 98程序在B3LYP/6-311+G**(C,H,S)水平上计算得到苯硫酚(TP)的一套校正因子,对苯硫酚各频率进行了势能分布(PEDs)分析,并对各振动模式进行了详细的指认.同时,在B3LYP/6-311+G**(C,H,S)/LANL2DZ(Au)水平上优化得到苯硫酚的各种形态与金结合,即C6H5SH-Au,C6H5SAu,C6H5S--Au的平衡构型,且在此基础上得到了C6H5SH-Au,C6H5SAu,C6H5S--Au三种形态的计算拉曼谱图.其中苯硫酚金盐(C6H5SAu)的拉曼谱图与实验得到的苯硫酚在金溶胶中的谱图是一致的,由此很好地证明了TP与金形成苯硫酚金盐.The optimized geometries of the clusters C6H5SH, C6H5SAu, C6H5S--Au and C6H5SHAu were calculated using the B3LYP density functional method with the 6-311+G** basis set for C, S, H and LANL2DZ for gold. All the calculations were carried out with the Gaussian 98 program package. Through PEDs (Potential Energy Distributions) analysis, comprehensive frequency assignments of thiophenol were performed and the scaling factors of the thiophenol were found. The calculated Raman spectra of several conformations of the thiophenol adsorbed on gold were obtained. The calculated Raman spectrum of C6H5SAu is in good agreement with the experimental one. Therefore, C6H5SAu is the conformation which is closest to the reality.国家自然科学基金(Nos.20273045,20373046);; 厦门大学固体表面物理化学国家重点实验室开放课题资助项目
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