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排序方式: 共有109条查询结果,搜索用时 31 毫秒
1.
古镇作为集自然景观与人文景观一体的景区,具有丰富的声音类型。本研究以大研古镇为例,通过实地调研探究不同声音偏好的游客对古镇声景观的主观评价差异。基于游客的声音偏好,将游客分为偏爱自然声和偏爱人工声两大类。通过因子分析提取游客声景观主观评价的5个主因子:大小、音质、效价、偏好和唤醒。进一步分析发现,这5个因子具有一定的层级性,其中从大小到唤醒代表声景观评价从声音的物理属性向声音的联想评价逐级提升。其中在低层级评价(大小、音质)中,偏好自然声的游客和偏好人工声的游客无显著差异,低层级评价具有稳定性;而在高层级评价(效价、偏好和唤醒)中,偏好人工声的游客更关注古镇声景观的淳朴性和遗产性。因此,游客对声景观的主观评价可视为一种指标,判断景区声景所处的评价阶段,从而为景区声景观改善提供更有针对性的建议。 相似文献
2.
Study of the circumstance influence on the elemental distribution in ancient animal bone using μ-XRF
Elemental analysis of archaeological bone plays an important role in the study of the dietary habits of ancient animals. The elemental characteristic of diagenetic skeletons depends on the surrounding circum-stance. The study of environmental influence on the elemental concentration of ancient bone is significant. In this paper, the diagenetic influence on archaeological skeletons is analyzed by microbeam X-ray fluorescence (μ-XRF). The results show that the enamel is an excellent barrier to the diagenesis and the element Sr in bone isn’t susceptible to contamination from the buried environment. 相似文献
3.
在Jorgenson和Fraumeni的理论框架下提出了一种计算人力资本存量的新方法,并且具体计算了我国2000年人力资本存量以及城乡人力资本存量.分析得出结论:我国人力资本总量巨大,而人均极少;城乡人均人力资本差距很大,且有进一步加大的趋势. 相似文献
4.
The Taosi site in Xiangfen County, Shanxi Province, may be the capital of the King Yao. Archeologists recently discovered
a large semi-circular stamped-earth platform, II FJT1, which has a clear and definite pounded-earth central core together
with a curved wall perforated by twelve gaps. The platform is said to be an ancient observatory used to determine the seasons
by watching the sunrise. Each feature of II FJT1 was precisely measured and the data are reproduced in this paper. An astronomical
analysis of slots E2 and E12 was carried out using the azimuths of the slots’ centerlines and the vertical angle of the mountain
ridge opposite, above which the sun rises. The results show that at present the sun is close to the two slots but does not
exactly enter them at summer and winter solstice sunrise. Using 14C analysis archeologists dated the site to about 2100 BC.
Because of the secular change in the obliquity of the ecliptic, at that date on the summer solstice the half-risen sun would
have appeared inside slot E12 just to the right of the centerline, and on the winter solstice the sun would have been exactly
on the centerline of slot E2. This result provides compelling proof that II FJT1 is an ancient observatory. 相似文献
5.
6.
古生物群遗迹化石的三维数字化测量 总被引:1,自引:0,他引:1
对古生物化石进行数字化建档,为古生物化石的长久保存、研究和复原提供了一个切实可行的办法。阐述了非接触式激光扫描仪的测量原理,并利用其对罗平古生物化石群中分布在120m2范围内的古生物足迹化石进行了数字化测量,采用大视场WIDE和小视场TELE镜头交替使用的方法获取全场和单一足迹化石三维点云数据,再利用三维数据处理PolyWorks软件将两个镜头的三维数据进行对应的嵌入融合,最终测量结果既能全面记录足迹整体分布,真实反映古生物爬行运动轨迹,又能精细反映足迹局部特征。结果表明提出的对大面积野外待测对象的测量方法,为化石野外测量、三维数字化、数字存储提供了可行方案。 相似文献
7.
Zuning Zhang Zhen Liu Yong Jiang Huachun Zhu Te Ji Jie Wang Min Chen Weiwei Peng Lihua Wang Xiangjun Wei 《X射线光谱测定》2022,51(4):394-402
Advanced synchrotron radiation light is a powerful tool for archaeometry research. However, its applications to precious cultural relics, especially for color painting, have been hindered to some degree due to potential X-ray radiation damage. Compared to inorganic mineral pigments, organic binders in the painting are easier to be damaged by synchrotron radiation X-ray beam. The radiation damage effect of two typical painting samples, pure rabbit skin glue and the mixed sample of rabbit skin glue and zinc white, has been investigated by in situ time-resolved ED-XAS and IR combined techniques. The results show that the radiation damage effect of pure rabbit skin glue is more serious at low X-ray energy (7775 eV). The radiation damage effect of the mixed sample increases significantly due to more X-ray absorption by inorganic pigments. Furthermore, the radiation damage is more serious at the energy near Zn K-edge and is somewhat slight at higher energy (13,054 eV). These damages are more obvious from the point of view of protein secondary structures. The irradiation damage effects increase more rapidly at the beginning and are not linear with the irradiating time. The results indicate that synchrotron radiation damage can be reduced effectively by using X-ray energy far away from the X-ray absorption edge of the major element in the pigments during XRF, XRD and CT experiments, or by using time-resolved techniques such as QXAFS and ED-XAS during XAFS experiments. 相似文献
8.
P. Bruno M. Caselli M. L. Curri A. Genga R. Striccoli A. Traini 《Analytica chimica acta》2000,410(1-2):193-202
Chemical characterisation has been carried out on 58 fragments of archaeological pottery from pre-classical sites in Apulia and Lucania, regions in southern Italy. Fourteen elements were determined by atomic emission spectroscopy by using inductively coupled plasma source. Statistical techniques, such as principal component analysis and clustering analysis, have been utilised to define grouping of different pottery items. Tests performed showed that the analysed shards were differentiable mainly by age and provenance. 相似文献
9.
A total of ten ancient colored glass beads were analyzed by confocal Raman microspectroscopy for the non‐destructive identification of microcrystals within them. These beads were excavated from different regions of China, including Xinjiang, Henan, Hubei and Guangxi Provinces, and were dated mainly from the 10th century BC to the 9th century AD. For the first time, either tin or antimony‐based opacifiers/colorants including calcium antimonate (CaSb2O6, Ca2Sb2O7), bindheimite (Pb2Sb2O7), lead tin yellow type II (PbSn1‐xSixO3) and cassiterite (SnO2) were identified in nine samples. In addition, other crystalline phases such as cuprite (Cu2O), α‐wollastonite (CaSiO3), diopside (CaMgSi2O6), feldspar (KAlSi3O8), calcite (CaCO3) and quartz (SiO2) were also detected. Another interesting phenomenon first observed in this study was the coexistence of Sn‐ and Sb‐based opacifiers/colorants in one mosaic bead from Guangxi. The possibility to use Sb‐ and Sn‐based opacifiers/colorants for dating and provenance study of ancient glass found in China is discussed briefly. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
10.
胡杏云 《宁波大学学报(理工版)》2005,18(4):500-505
针对古村落发展面临的现实和潜在的问题,以四明山腹地宁渡余姚柿林村为例,探讨了古村落在市场经济条件下的管理制度与保护机制. 相似文献