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美国旅华客源市场研究  [PDF]
安徽师范大学学报(自然科学版) , 2015,
Abstract: 随着社会经济的发展和对外开放的推进,我国的入境旅游发展举世瞩目.美国作为我国最大的远程旅游客源国,研究其旅华客源市场状况,对于将我国建设成为世界级高水平的出境旅游目的地具有重要的意义.从市场规模、旅游目的、入境方式、旅游消费、游客结构、访问目的地等多个方面分析了美国旅华客源市场的发展现状,再对美国旅华游客旅游意向调查评价和不同国家对美国的入境旅游政策分析的基础上,分析美国旅华客源市场影响因素.针对美国旅华市场开发中存在的问题提出了市场开发战略策划,以期为美国及其他客源国(地区)旅游市场开发研究提供一定的借鉴.
黄宾虹《蜀游画册》赏析  [PDF]
东南文化 , 2005,
Abstract: ????黄宾虹《蜀游画册》的点法墨法是在蜀游夜行中所得到的感悟,是黄宾虹绘画的精神所在。
Anisotropic Ripple Deformation in Phosphorene  [PDF]
Liangzhi Kou,Yandong Ma,Sean C. Smith,Changfeng Chen
Physics , 2014, DOI: 10.1021/acs.jpclett.5b00522
Abstract: Two-dimensional materials tend to become crumpled according to the Mermin-Wagner theorem, and the resulting ripple deformation may significantly influence electronic properties as observed in graphene and MoS2. Here we unveil by first-principles calculations a new, highly anisotropic ripple pattern in phosphorene, a monolayer black phosphorus, where compression induced ripple deformation occurs only along the zigzag direction in the strain range up to 10%, but not the armchair direction. This direction-selective ripple deformation mode in phosphorene stems from its puckered structure with coupled hinge-like bonding configurations and the resulting anisotropic Poisson ratio. We also construct an analytical model using classical elasticity theory for ripple deformation in phosphorene under arbitrary strain. The present results offer new insights into the mechanisms governing the structural and electronic properties of phosphorene crucial to its device applications.
Ripple and kink dynamics  [PDF]
H. Caps,N. Vandewalle
Physics , 2001, DOI: 10.1103/PhysRevE.64.041302
Abstract: We propose a relevant modification of the Nishimori-Ouchi model [{\em Phys. Rev. Lett.} {\bf 71}, 197 (1993)] for granular landscape erosion. We explicitly introduce a new parameter: the angle of repose $\theta_r$, and a new process: avalanches. We show that the $\theta_r$ parameter leads to an asymmetry of the ripples, as observed in natural patterns. The temporal evolution of the maximum ripple height $h_{max}$ is limited and not linear, according to recent observations. The ripple symmetry and the kink dynamics are studied and discussed.
农 村 旅 游 城 镇 花 果 乡 建 设 的 实 践  [PDF]
北方园艺 , 2010, DOI: 10.11937/bfyy.201018085
“泛长株潭”区域旅游合作的阻碍因素及对策分析  [PDF]
湖南工业大学学报(社会科学版) , 2008,
Abstract: “泛长株潭”|区域旅游的合作不仅可以加快湖南旅游业的发展, 而且可以促进长株潭城市群“ 两型社会”综 合配套改革试验区的建设。通过从“泛长株潭”区域旅游合作的阻碍因素入手分析, 探求发展“ 泛长株潭”区域旅 游合作的有效对策。
Energy dependent wavelength of the ion induced nanoscale ripple  [PDF]
T. K. Chini,M. K. Sanyal,S. R. Bhattacharyya
Physics , 2002, DOI: 10.1103/PhysRevB.66.153404
Abstract: Wavelength variation of ion beam induced nanoscale ripple structure has received much attention recently due to its possible application in nanotechnology. We present here results of Ar$^+$ bombarded Si in the energy range 50 to 140 keV to demonstrate that with beam scanning the ripple wavelength increases with ion energy and decreases with energy for irradiation without ion beam scanning. An expression for the energy dependence of ripple wavelength is proposed taking into simultaneous effect of thermally activated surface diffusion and ion induced effective surface diffusion.
Structure of symmetric and asymmetric "ripple" phases in lipid bilayers  [PDF]
Olaf Lenz,Friederike Schmid
Physics , 2006, DOI: 10.1103/PhysRevLett.98.058104
Abstract: We reproduce the symmetric and asymmetric ``rippled'' $P_{\beta'}$ states of lipid membranes by Monte Carlo simulations of a coarse-grained molecular model for lipid-solvent mixtures. The structure and properties compare favorably with experiments. The asymmetric ripple state is characterized by a periodic array of fully interdigitated ``defect'' lines. The symmetric ripple state maintains a bilayer structure, but is otherwise structurally similar. The formation of both ripple states is driven by the propensity of lipid molecules with large head groups to exhibit splay.
略论南宋初年平定游寇的斗争  [PDF]
浙江大学学报(人文社会科学版) , 1999,
Abstract: ?南宋初年,游定猖獗,它严重地威胁到建立不久的南宋政权的安全。但是,只经过了短短的数年时间,各股游寇相继被平定,南宋政权也转危为安。本文分析了南宋初年游寇出现的原因、成分以及游寇对当时社会所造成的巨大危害性;论述了南宋军队与游寇斗争的经过、获胜原因以及平定游寇的意义。
新时期中国茶旅一体化发展及前景分析  [PDF]
资源科学 , 2010,
Abstract: 茶旅一体化是茶业与旅游业及相关配套服务业一体化发展的新模式,我国茶旅一体化发展的资源丰富,本底较好。新时期,茶旅一体化处于提升阶段,激活茶经济是提升茶旅一体化的前提。根据国内外茶经济的发展大局,结合茶经济的现状及茶资源概况,从空间上可将我国茶旅一体化发展的局势分为“优化区域、重点区域、一般区域和补充区域”等4种区域类型。为促进茶旅一体化的发展,要从创新发展模式、完善规划体系等方面采取措施。
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