An Evaluation on Internet Adopted in Hotels in China

在网络化发展过程中 ,中国旅游饭店业能够积极运用Internet参与市场竞争 ,并已取得初步成效 ,但在建设与经营中也存在一些问题。本文拟从旅游饭店网络化的意义分析入手 ,评析现状 ,提出一些可供选择的方案与措施。As a new message industry,Internet has been wildly adopted in the hotels in China. Hotels have great competition in market by using Internet efficiently. However,there are still numerous problems both in Internet use and construction. The paper summarizes and analyses Internet used in the hotel enterprises as well as hotel management. It expounds some projects and measures by using Internet

基于密度峰值聚类的中尺度涡轨迹自动追踪方法

中尺度涡信息的提取包括涡旋的识别和轨迹追踪,其自动识别与追踪对于基于海量数据的中尺度涡分析十分重要。传统涡旋轨迹自动追踪方法一般需要预先设定搜索半径的阈值,存在一定的主观性。针对传统中尺度涡轨迹追踪方法存在的问题,论文从聚类的角度出发,提出基于密度峰值聚类算法实现对涡旋轨迹的自动追踪,并以南海中尺度涡追踪为例,将基于聚类的追踪算法与传统的相似度追踪算法进行比较分析。结果表明:(1)基于密度峰值聚类算法,可实现对海洋中尺度涡的自动追踪,该算法涡旋追踪准确率优于传统相似度算法;(2)该涡旋追踪算法对资料的完整性依赖度较低,特别是对于存在部分缺损数据的情况仍能较准确追踪;(3)该追踪算法克服了传统涡旋追踪算法需要预先设定搜索半径阈值的问题,自适应性更强。中国科学院战略性先导科技专项(A类)资助(XDA11010103);;国家自然科学基金(41706021,41775053,41206002);;国家海洋局第二海洋研究所专项资助(JG1416);;中国博士后科学基金(2014M551711);;江苏省自然科学基金(BK20151447

苯胺基喹唑啉类酪氨酸激酶抑制剂的电喷雾质谱裂解规律

研究吉非替尼、厄洛替尼和艾克替尼3种苯胺基喹唑啉类酪氨酸激酶抑制剂,在电喷雾质谱正离子模式下的裂解规律.通过电喷雾质谱产生各化合物稳定的[M+H]+准分子离子峰,进而对[M+H]+离子进行高能诱导裂解和碰撞诱导裂解,获得相应化合物的质谱图.结果表明:在电喷雾电离（ESI）多级质谱中,3种药物的裂解主要发生在喹唑啉环C4,C6和C7位取代基上,并伴随分子内重排和H+的迁移重排;在二级质谱图中,吉非替尼的高丰度特征离子质荷比（m/z）为128.1,厄洛替尼的m/z值为278.1和336.1,埃克替尼的m/z值为278.1,304.1.国家自然科学基金资助项目(81302652);;福建省自然科学基金资助项目(2015J01342

企业赞助项目的选择与评估

本文分析了赞助活动需要选择与评估的必要性 ,探讨了赞助商如何从赞助的目标对象与目标效果中选择赞助项目 ,最后讨论了如何从质与量的角度评估赞助效果

A Lexicon of the rGyalrong bTsanlha Dialect : rGyalrong-Chinese-Tibetan-English

departmental bulletin pape

Loop-Mediated Isothermal Amplification(LAMP) for Detection of Alicyclobacillus acidoterrestris in Foods

目的:利用环介导等温扩增技术建立食品中酸土环脂芽孢杆菌快速检测方法。方法:针对酸土环脂芽孢杆菌16S序列设计特异引物,再优选反应体系,用显色法检测实验结果。结果:该方法能够在63℃条件下1 H内检出食品中酸土环脂芽孢杆菌,所设计的引物有良好的特异性;灵敏度达6.7 Cfu/M l(弱阳性)。结论:该方法具有高效、特异性强和敏感性高等特点,可满足酸土环脂芽孢杆菌快速检测筛选的要求。Purpose: A loop-mediated isothermal amplification(LAMP) method was established for the detection of Alicyclobacillus acidoterrestris in foods.Methods: After optimization of the reaction conditions of LAMP including the concentrations of primers, reaction time and amplification temperature, the LAMP method was developed, and its sensitivity and specificity were evaluated.Results: The method was capable of rapidly and specifically detecting A.acidoterrestris in foods within 1 hour at a constant temperature of 63 ℃.The sensitivity of the method was 6.7 CFU/m L and the specificity was 100%.Conclusions: The LAMP method is efficient, highly sensitive and specific, and suitable for the rapid detection of A.acidoterrestris in various food samples.福建省漳州市自然科学基金项目(ZZ2012J16

AWARENESS OF TERMS OF KINSHIP AND ADDRESS IN INTERCULTURAL COMMUNICATION

学位：文学硕士院系专业：外文学院外文系_英语语言文学学号：xy00037

离散颗粒法的EMMS曳力模型及其应用

气固流化床在过程工业中有着极其广泛的应用，其内部的两相流场是典型的非平衡、非均匀系统，存在以颗粒团聚为代表的介尺度结构，这给气固流化床的模拟带来了很大的难度。在气固两相流系统中，曳力对于流场的演变起着至关重要的作用，因此建立能够描述介尺度结构的非均匀曳力模型是解决问题的关键。以往的非均匀曳力模型多基于双流体模型发展而来，面向离散化方法的非均匀曳力模型还少有报道。本文在能量最小多尺度（EMMS）理论框架下对面向离散方法的非均匀曳力模型（EMMS/DP）进行了相关研究，并利用EMMS/DP曳力模型对多个气固流化床提升管进行模拟。最终应用该方法对航天气化炉冷模装置中的气固两相流动行为进行了模拟预测。本文各个章节的研究内容如下：第一章综述了气固流态化系统的发展过程，介绍了当前比较流行的三种数值模拟方法，并且对非均匀曳力模型的发展过程作了简要的介绍，提出了发展离散化非均匀曳力模型的必要性。第二章介绍了本文使用的颗粒轨道模型中一种粗粒化的数值模拟方法&mdash;&mdash;MP-PIC方法，利用该方法模拟了两个提升管算例，模拟结果与实验值吻合很好，并对该方法的两个重要参数：网格分辨率和粗粒化参数进行了相关分析。第三章对EMMS/DP曳力模型进行了改进和发展。改进了该模型颗粒参数的生成方式并将非均匀因子与固相浓度和滑移速度进行关联以考虑介尺度结构的动态效应的影响。本章还对该曳力模型进行了发展，引入了操作条件对介尺度结构的影响，使其能够适应多种工况。最后利用改进后的曳力模型与MP-PIC方法耦合对不同气固流化床提升管、不同操作条件进行了模拟验证，模拟结果与实验值吻合很好。第四章利用改进后的曳力模型对工业航天炉实验装置进行了模拟，模拟结果可以捕捉到颗粒团聚、颗粒返混等现象，对流场整体的再现与实验现象吻合。 第五章对本文进行了总结并对以后工作提出了建议。&nbsp;;Gas-solid fluidized bed is widely used in the process industry. The flow field inside gas-solid fluidized bed is a typical non-equilibrium and inhomogeneous system, where there exists mesoscale structures e.g. particle clusters. Those make it difficult to the simulation of gas-solid fluidized bed. In gas-solid two-phase flow systems, the drag force plays an important role in the evolution of the flow field. Therefore, it is necessary to establish an inhomogeneous drag model which can describe the mesoscale structure. Most of the inhomogeneous drag models were developed based on the two-fluid model, while there is seldom report about the inhomogeneous drag model for discrete particle method. In this study, we investigate the discrete-based inhomogeneous drag model (EMMS/DP) in the framework of the energy minimization multi-scale (EMMS) theory and simulate several gas-solid fluidized bed risers with the EMMS/DP drag model. Finally, this method has been used in the prediction of gas-solid flow behavior in cold-state HT-L gasifier. The content of each chapter of this dissertation is as follows:Chapter 1 summarizes the development of the gas-solid fluidization system. Three currently popular numerical simulation methods are introduced in this chapter, and the development process of heterogeneous drag model is made a brief introduction. Finally, we propose the necessity of developing the inhomogeneous drag model for discrete particle method.In chapter 2, we introduce the MP-PIC method which is a coarse grained numerical simulation method belonging to the particle tracking model used in this dissertation. Two risers are simulated by this method and the simulation results are in good agreement with the experimental measurements. Two important parameters of this method: grid resolution and coarse graining parameters were discussed in this chapter.In chapter 3, the EMMS drag model for discrete particle method (EMMS/DP) was improved and developed. This study improves the generating method of particles information and correlates the heterogeneity index (HD) with solid concentration and slip velocity to account for the dynamic effects of meso-scale structure. Further we developed this drag model by introducing the influence of operating conditions on the mesoscale structure so that it can adapt to a variety of operating conditions. Then, different gas-solid fluidized bed risers and different operating conditions were simulated with the improved drag model. The simulation results agreed well with the experimental work.In chapter 4, the experimental device of HT-L gasifier was simulated by using the improved drag model. The simulation results can capture the phenomena of particle agglomeration and backmixing. The overall reproduction of the flow field is consistent with the experimental measurement. In chapter 5, we summarize this dissertation and provide suggestions for future work.&nbsp;</p