长春大都市区形成发育结构特征和空间发展形态调控

大都市区是当今城市发育到高级聚集阶段的空间表现形式之一.通过对长春大都市区资源禀赋、发展规模、产业空间、生态环境等形成、发育、结构的分析诊断,论述了长春大都市区空间发展形态结构调控的基本原则和总体思路,建议性提出了未来长春大都市区空间发展形态结构调控的三种不同组织方案.     

就地城镇化背景下扩展大都市区空间结构的演变——以泉州市为例

基于人口普查、统计年鉴、土地利用现状调查等资料,利用GIS空间分析等方法,考察了1990—2010年间就地城镇化背景下泉州扩展大都市区空间结构的演变特征.研究发现,泉州扩展大都市区空间结构的演变过程既符合都市区化的世界性潮流,又有就地城镇化特征:第一,整体空间规模持续扩大,其中核心区的初始规模较小且增长较慢,城乡融合区...     

借用和活化“边角空间”建立慢行之上的微公园系统——以天津市河北区为例

在大都市的旧城区,公园规划配置的合理性屡屡受到挑战。在拥挤的大都市,通过对城市"边角空间"的"借用"和再利用,为居民提供便捷的、多样化的活动空间,同时恢复和再生城市中心区的活力,也为旧城区拓展绿色休憩空间提供新途径。以河北区为例,阐述了在天津市利用城市"边角废地"实践微绿地系统的尝试。     

旅游阴影区发展的博弈分析

旅游阴影区是指在旅游业发展中,受到旅游优势区遮蔽效应的影响,处于旅游发展的温点或冷点,表现出一定的非显性特质.从博弈论的角度研究旅游阴影区和旅游优势区的空间关系,为旅游阴影区的发展提供了一个全新的视角.以博弈论中的静态博弈和动态博弈为出发点,分析了旅游阴影区和旅游优势区在单阶段及长远发展期的博弈,寻找双方博弈的纳什均衡,对旅游阴影区的发展规模进行了经济性分析,为其长远发展提供了新的策略.     

特大城市中心区阴影区的边界界定及空间特征

采用墨菲指数界定的10个亚洲特大城市中心区用地及建筑作为数据基础,通过对这10个中心区实地调研与综合分析,发现阴影区在区位空间分布、公共设施分布、开发强度和建筑形态4个方面具备具体特征内涵.然后,从这4方面提出界定方法,确定特大城市阴影区范围.采用数据排序法分析用地构成,总结阴影区用地可按照比例大小分为4个等级.最后,采用时间-成本法分析交通特征,发现交通可达性低的地块容易产生阴影区.根据以上分析和归纳,可科学认知阴影区的空间规律,从理性推进的角度实现中心区的健康发展.     

通用机场体系地理空间结构形态

通用机场是通用航空活动的重要载体,研究其空间结构形态对通用航空的发展具有重要意义.利用威尔逊模型和ArcGIS的空间分析工具,从区域通用航空资源强度、通用机场综合能力及吸引力三个方面对美国西南地区通用机场体系地理空间结构进行细致探析.研究发现:通用航空资源强度东部高于西部,这与人口经济、自然资源、农林分布相一致;基于综合能力的通用机场核心-边缘状分布格局较为明显,呈现俱乐部趋同现象;基于吸引力的通用机场集聚程度高,空间分布不均匀,主要集中在大都市区、人口密集区、大都市连绵区及墨西哥湾沿岸工业区;通用机场的分布与地区市场需求表现一致,以经济和人口为依托,大都市区的通用机场航空活动量明显高于其他区域.     

基于郊区化背景下的大都市郊区小城镇发展研究--以南京为例

郊区化进程给全球大都市区空间格局的发展带来了激烈变化．与西方国家不同,在集聚城市化背景下的郊区化,使得中国的大都市郊区小城镇未能获得普遍的繁荣．在集聚和扩散的合力作用下,大都市郊区的小城镇发展如何突破重重难题,承担起其应有的角色作用?该文将以南京为例,尝试对大都市郊区的小城镇发展作出一定分析,提出些许对策．     

阴影影响下的齐云山旅游发展博弈分析

从博弈论的角度研究旅游阴影区和旅游优势区的空间关系,为旅游阴影区的发展提供一个全新的视角.本文以博弈论中的静态博弈和动态博弈为出发点,分析了安徽齐云山旅游区和黄山旅游区在单阶段及长远发展期的博弈,力求寻找双方博弈的纳什均衡,并对齐云山旅游区的发展规模进行了经济性分析,为其长远发展提供了新的策略.     

铁路枢纽参与大都市区城市综合交通运输系统的整合研究

介绍了大都市区的形成过程和大都市区的道路交通现状,分析了铁路融入城市交通系统的整合原则、数学描述及整合流程,提出了城市道路这一新型整合产物。     

基于WorldView-Ⅱ影像的呼和浩特市片区绿地覆盖信息提取

高精度城市绿地覆盖信息的获取在园林城市建设中具有十分重要的意义。利用高空间分辨率WorldView-Ⅱ数据,通过阴影消除,用6种植被指数提取研究区绿地信息,计算绿地覆盖率,结果表明:未消除影像阴影,绿地面积将少提取0.807 km2;NDVI、EVI、ARI1、SAVI提取绿地的精度都达到100.00%,SRI、ARVI提取绿地的精度达到99.99%;研究区绿地覆盖率为23.322%。     

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.     

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.     

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.     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.