The Geochemical Fingerprint of Tufo Lionato Blocks from the Area Sacra di Largo Argentina: Implications for the Chronology of Volcanic Building Stones in Ancient Rome

We use trace element discrimination diagrams to provide a geochemical fingerprint for Tufo Lionato, the volcanic rock most commonly used in the ancient Roman dimension stone technique. Based on the comparison of their geochemical signatures, we identify different rock facies of Tufo Lionato employed since the fourth to third centuries and through the second century bce in the construction of the temples of the Area Sacra di Largo Argentina. These rock facies correspond to two previously identified building stones: Aniene Tuff and Monteverde Tuff, named after their supposed source areas located in the Aniene River Valley and in the homonymous locality of the Tiber River Valley, respectively. However, the results of our study demonstrate previous misidentification of these volcanic rocks in the different construction phases of Temple C, providing a revision of the dating system currently accepted for the diffusion of Tufo Lionato architecture. We show that the Aniene facies has been exploited since the end of the fourth century bce and that it was employed along with Tufo Giallo della Via Tiberina in the podium and staircase of Temple C, whereas observations at Largo Argentina suggest that the ‘Monteverde Tuff’ was only sporadically used in the early phases of the dimension stone construction technique.     

城市体系规模结构预测方法应用研究——以内江市为例

本文利用城市体系规模分布模型对内江市城市体系分形特征及规模结构进行了分析预测,指出了内江城市体系发展规律及促进其快速发展规律及促进其快速发展的对策措施。     

城市规模分布的分形和分维

研究城市规模分布的分形特征,修正了一些位序—规模模型,将历史上出现的有关城市规模分布的模型统一在分形形式之下,并给出了具有一般意义的三参数Ｚｉｐｆ模型：Ｐ（ｋ）＝Ａ（Ｋ－ａ）－ｑ。将Ｚｉｐｆ维数与大自然１／ｆβ起伏的β指数进行类比,认为分维Ｄ＝１／ｑ＝１是一种先验的优化维数,进而提出结构优化的１／ｒ型城市位序—规模分布,以此作为城市体系等级结构规划的依据之一。     

基于曲率驱动的瓦当文字提取方法

瓦当上雕刻的篆体文字是极富研究意义的中华文化元素,为中华文字的研究提供了研究对象。本研究提出一种以曲率为基础,通过粗细两次分割实现瓦当三维文字分割的方法,解决了瓦当上雕刻文字的提取问题。首先通过计算模型表面曲率进行粗分割,并利用聚类修复方法进行细分割。由顶点曲率值衍生出的平面点集进行多平面拟合,实现瓦当表面文字的精确分割。最后应用平行细化子迭代方法进行骨架线提取,实现瓦当文字的提取。实验结果证明,文中方法可以有效地实现瓦当三维文字提取。     

长江三角地区高速公路网络与城镇体系空间结构的分形研究

测算了长三角地区高速公路网络和城镇体系空间结构的长度维数,分枝维数、集聚维数、网格维数、关联维数等分形维数。研究表明,长三角地区:(1)高速公路网已具备分形结构特征,并以上海市为中心区域按自相似性向外延展;但路网密度尚未饱和,有待进一步加强,在连通性上还有更大发展空间;(2)城镇体系分布表现出自相似性结构,总体上仍呈空间集聚格局;但是基于220个县级城镇单位的随机分布出现了非向心性态势,说明城镇体系与高速公路网络尚未实现整合,网络需要完善;(3)地级以上城市之间的高速公路网络的联通度已经达到了甚至超过了极限水平。     

游地社区恢复力认知测度与影响因子分析——以千岛湖为例

人是社会-生态系统的主要决定性因素,旅游地社区恢复力提高是旅游地可持续治理的关键。运用通径分析方法,从治理、社会、经济及生态系统4个维度建立社区恢复力认知测度模型,定量测度千岛湖社区认知恢复力,识别脆弱性及应对能力认知对社区恢复力的复杂影响。结果表明：①社区恢复力认知可提取8个因子,政府治理在社区恢复力中的作用最为显著,是社区恢复力提高的主导力量。②千岛湖恢复力认知综合平均值为2.42,处于中等偏下水平。社会子系统恢复力认知值最高,生态和经济子系统恢复力认知值最低,系统发展应关注生态资本的积累与保护以及经济发展的多样性与稳定性。③社区脆弱性、个体和政府应对能力的各变量对社区总恢复力及各维度认知呈现出错综复杂的关系,政府应对能力对总恢复力及各维度认知的影响相对最强,个体应对能力对多数恢复力认知维度未产生明显影响。需进一步发挥个体作用,促进个体和政府的共同参与,提高社区恢复力。     

亚文化消费空间场所依赖维度探索性研究——以大连市泡泡玛特门店为例

在后现代消费时代,文化逐渐成为城市消费空间建构的重要手段。其中亚文化以其有别于主流文化的文化特质,引导人们在消费空间中有着别样的空间实践,进而传递给人们独特的空间感知。本文借助场所依赖理论,以大连市 5 家泡泡玛特门店为例,通过开放式深入访谈和参与式观察等形式的实地调查收集资料,运用扎根理论对资料进行三级编码分析,获得一个由亚文化风格、文化审美、消费空间、休闲时间、社会交往五个维度组成的亚文化消费空间场所依赖理论模型。以期帮助人们更清晰的了解,具有不同身份认同的亚文化群体,在多样的文化消费模式下开展的空间实践过程,以及随之产生的空间情感联系。     

Modeling skeletal traits and functions of the upper body: Comparing archaeological and anthropological material

The aim of this study is to look at upper body functional modifications caused by mechanical loading. We look at 4th lumbar vertebra as well as fibrous humeral musculoskeletal stress markers (MSMs). This study uses information provided by magnetic resonance images of living individuals from the University of Oulu Hospital data banks (N = 91), archaeological skeletons from Sweden (N = 54) and England (N = 61), and autopsied skeletal collection of early 20th century Finns in Natural History Museum, University of Helsinki (N = 48). The lumbar vertebrae and MSM are subjected to mechanical loading caused by the upper body weight and loads lifted and/or carried. We hypothesized that the vertebral size reflect body size, habitual mechanical loading and the overall skeletal robusticity as mechanical competence to withstand mechanical loading standardized to body size, which has decreased over millennia. For Helsinki material occupation, age and sex is known and the material was used in Niinimäki (2011). In the study by Niinimäki (2011) MSM were found to be affected by the intensity of muscular action as well as body size and age. This study is reviewed here in light of re-analysis of the data to follow the current anatomical understanding of the entheses as well as viewing MSMs as a part of upper body functional complex. Only fibrous entheses were included in the re-analysis. Furthermore, due to small number of females where activity intensity could be assessed, females were dropped from the re-analysis.     

论学习西方运动与20世纪初中国社会思潮

20世纪初的社会思潮突出反映了近代中国在学习西方进程中的不断进步。首先,将学习西方物质明与发展资本主义经济,挽救民族危亡,做了逻辑的联系。其次,开始了对西方制度化的学习,并伴以选择、改造、批判的理性态度。第三,在对自己民族与化反省的基础上,将对西方化的学习推进到观念意识层面,提出了人的近代化问题。     

京津冀交通路网结构特征及其演变的分形刻画

交通一体化是京津冀协同发展的基础和前提，合理的交通网络结构对提升城市群整体效能意义重大。本文基于1995-2030年多源交通路网数据，运用分形思想，研究京津冀以城市群为节点体系的交通路网空间结构特征及演化趋势。主要结论如下：①京津冀高等级路网仍有一定扩展潜力，交通网络整体等级结构尚不稳定，未达到一种优化的分形递阶状态。②各级路网空间分布具有自仿射特征，但各向异性扩展强度正在逐渐减弱，城镇化和交通一体化战略的实施正在促进各级路网逐渐向自相似的结构一体化方向演化。③交通路网空间结构演化与城镇用地结构不同步，可能与系统所处城镇化发展阶段有关。④高等级路网分维演化服从次数大于1的logistic模型，按照规划预期，各级路网空间发育将相继在2040年前后达到饱和；但按照规划设计高速公路建设将过度饱和，未来应及时调整规划。