双台河口自然保护区开展生态旅游应注意的问题

在双台河口自然保护区发展生态旅游应注意正确处理保护和旅游的关系，以系统工程原理和生态学原则开发旅游资源，加强旅游从业人员的培训，建立完善的生态旅游管理体系，狠抓生态旅游中的环境教育，充分认识自然保护区旅游业的负效应，采取切实有效的保护开发措施．     

自然保护区可持续发展的途径

分析了我国自然保护区发展现状,从生态旅游的实质入手提出了开发生态旅游是自然保护区可持续发展的重要途径,初步探讨了自然保护区开发生态旅游的阶段,结合石人山自然保护区进行了实例研究。     

自然保护区的生态旅游规划及开发

本文从自然保护区和生态旅游的概念上分析了基于自然保护区的生态旅游规划与开发的条件和必要性,结合自然保护区规划分析了作为其生态旅游资源的现状,并对自然保护区的生态旅游规划与开发提出了一些对策。     

宁夏南部山区自然保护区的建设及旅游开发

分析了宁夏南部山区自然保护区的建设情况和存在的问题,提出了相应的建设方略,指出生态旅游是自然保护区开发和建设的有效途径     

刍议中国自然保护区生态旅游开发策略

对自然保护区生态旅游的认识不足导致旅游开发中的不当行为。已对保护区的功能造成破坏。反过来也会对旅游业本身的可持续发展产生极大的负面影响，甚至摧毁旅游业。针对我国自然保护区生态旅游开发现状的分析。本文从宏观与微观两方面提出了自然保护区生态旅游开发策略。     

长青国家级自然保护区与周边城镇生态旅游整合开发研究

长青国家级自然保护区属于限制开发区,可通过与周边古镇的资源互补,增强区域整体优势,实现整合开发来提升旅游竞争力。在生态旅游可持续发展目标体系指导下,梳理了长青国家级自然保护区与周边古镇华阳的旅游开发现状和存在问题,分析它们进行生态旅游整合开发的基础和条件,提出建设生态旅游目的地、培育生态旅游者、强化生态旅游环境维护和加强生态旅游企业及经营活动管理等方面的生态旅游整合开发思路。
     

自然保护区生态旅游开发研究

本文在论述生态旅游定义以及自然保护区概念的基础上,探讨了自然保护区生态旅游开发意义和措施。认为自然保护区开展生态旅游实施可持续发展战略的一种重要方式。自然保护区开展生态旅游开发要以自然保护为主,做到开发与保护并重,生态效益、经济效益和社会效益的三统一。     

自然保护区生态旅游的开发与管理

本文从自然保护区的生态旅游的管理要求出发，分析了目前我国自然保护区生态旅游开发与管理上存在的问题，并提出了针对问题的管理思想与对策。     

湖北自然保护区现状和生态旅游开发对策

湖北地处长江中上游，湿地和水域资源、野生动植物资源、自然遗迹资源丰富，但目前自然保护区在规划开发、保护利用上存在诸多问题。生态旅游是自然保护区实现可持续发展的有效途径，在湖北自然保护区应寻求实施生态旅游开发的对策。     

天堂寨自然保护区生态旅游资源及开发对策研究

天堂寨自然保护区有得天独厚的生态旅游资源等待开发。分析了天堂寨生态旅游资源的优势，及其开发中存在的主要问题，提出了该区生态旅游开发对策。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-