国外野生动物旅游研究综述

通过对国外野生动物旅游研究文献的梳理,本文发现,国外相关研究主要集中在野生动物旅游的内涵、旅游产品与供给、野生动物游客、旅游影响、利益相关者、野生动物保护及目的地管理6个方面,形成了以“旅游体验-生态环境-目的地发展”为核心的研究模式,并呈现出明显的环境价值取向和多学科参与的特点。     

温度和湿度对乙二醛聚合物加固饱水梓木文物性能和微观结构的影响

乙二醛聚合物加固饱水梓木文物在自然环境或者博物馆存放时,受环境因素如温度和湿度的影响会导致文物发生劣化。本研究采用傅里叶红外光谱(FTIR)、扫描电镜(SEM)等方法研究了乙二醛聚合物脱水加固饱水梓木试样在不同温度和湿度环境中性能与微观结构变化。结果显示,饱水梓木文物材料经乙二醛聚合物脱水加固后,乙二醛聚合物与梓木细胞壁结合紧密,部分填充于梓木细胞内加固梓木细胞壁。试样在25℃和50%RH环境中试验30 d其结构和性能无明显变化。在60℃和50%RH环境中试验30 d,试样内部的乙二醛聚合物逐渐均匀附着于细胞壁且表面平滑,试样横截面断口平整;但试样表面的乙二醛聚合物逐渐消失,暴露出木材本体。在25℃和95%RH环境中乙二醛聚合物吸湿性明显增强,其与水的结合能力高于梓木细胞壁,乙二醛聚合物与细胞壁之间的结合被破坏,失去加固效果,但仍填充于细胞中。最后分析了温湿度对乙二醛聚合物加固饱水梓木性能与结构的影响机制,并提出了试样在吸湿和脱水过程中乙二醛聚合物与梓木细胞壁的结构变化模型。     

传世纺织品文物除尘方法研究——以湖蓝色缎绣凤纹大卧单为例

传世纺织品文物表面蒙尘、污染是一种较为普遍的病害。除尘成为了传世纺织品文物保护修复过程中极为重要的一环。针对不同状态的文物,如何安全、有效、便捷地进行除尘工作成了本研究的方向。本工作主要研究原陈设于养心殿体顺堂的湖蓝色缎绣凤纹大卧单的除尘方法。首先,对现有传世纺织品文物的物理除尘方法进行归纳,总结为5种类型：吸尘法、擦拭法、震动法、粘附法和凝胶法。其次,对该文物进行全面研究,包括制作工艺、图案样式、病害分析、试验检测等。研究结果为：该文物是双层罩面罩里加四周缝网穗制作,面主要为绒线绣、捻线绣花鸟纹;黄色绣线出现合成染料酸性偶氮染料,推测可能是19世纪末至20世纪初生产;绣线纤维强度较好,绣底局部糟朽,具备一定除尘条件。再次,通过除尘实验对比博物馆专用吸尘器、真空负压液态过滤除尘设备、超细纤维布作用文物的除尘效果。实验结果确定除尘方法为：首先用博物馆专用吸尘器进行第一遍的初步除尘,然后用真空负压液态过滤除尘设备进行第二遍的精细除尘。最后,结合文物织造、刺绣的工艺特点,将文物局部特征分类为：缎底、缎面开裂、压瓣、出边、水路、绒线绣线、加捻绣线、打籽绣,并研究分析针对它们的除尘手法。相比以往...     

空港经济产业布局模式及规划引导研究——以广州白云国际机场为例

从产业布局的角度探讨了国内近年比较热门的空港经济现象。首先从与机场最直接相关的人、物、资金和信息四大要素入手,剖析了空港经济主要产业类型及其特征,并分析了空港经济总体区位及其演变过程。在此基础上总结分析空港经济产业具有与发展阶段相吻合的增长极、点轴和网络三种布局模式,指出国内备受推崇的圈层布局是发展阶段不明确的理想模式,并尝试采用地理信息系统空间分析方法对产业布局的区位进行叠加分析。最后以广州新白云机场为例,探讨了周围花都区和白云区空港经济产业布局规划方案和措施。     

New Jurassic predatory cockroaches (Blattaria: Raphidiomimidae) from Daohugou,China and Karatau,Kazakhstan

Liang, J., Shih, C. &; Ren, D., October 2017. New Jurassic predatory cockroaches (Blattaria: Raphidiomimidae) from Daohugou, China and Karatau, Kazakhstan. Alcheringa 42, 101–109. ISSN 0311-5518.

Two new species and a new combination in a new genus of predatory cockroaches, Falcatusiblatta gracilis and F. qiandaohua from the Middle Jurassic Jiulongshan Formation of Daohugou, China and F. karatavica (Vishniakova) comb. nov. from the Upper Jurassic Karabastau Formation of Karatau, Kazakhstan are described within Raphidiomimidae. The new taxa are distinguished by the presence of a very long ovipositor (plesiomorphy) and elongate cerci with heteronomous articles and forewing markings with irregular patch-like shapes of light and dark patterns (autapomorphies).

Junhui Liang [liangjh0602@126.com], Tianjin Natural History Museum, 31 Youyi Road, Hexi District, Tianjin, 300203, PR China; Chungkun Shih? [chungkun.shih@gmail.com], College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing, 100048, PR China; Dong Ren [rendong@mail.cnu.edu.cn], College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing, 100048, PR China. ?Also affiliated with: Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.     

SPACE–TIME MEASURES OF DEMAND FOR SERVICE: BRIDGING LOCATION MODELLING AND ACCESSIBILITY STUDIES THROUGH A TIME‐GEOGRAPHIC FRAMEWORK

Demand for service in location modelling is often evaluated based on the spatial proximity of fixed and static reference locations of demand (e.g. home) to a facility, which ignores person‐specific activity–travel patterns and the temporal changes in demand for service throughout the day. To address these limitations, this study draws upon recent developments in space–time measures of individual accessibility to explore the spatial and temporal structures of demand by considering individuals' space–time constraints and impact of existing urban structures. Based on a time‐geographic framework, eight space–time demand measures were developed and compared with three conventional location‐based demand measures for 12 hospitals through an empirical study conducted in Columbus, Ohio. The results show that geographic proximity between clients' home and facilities may not be an effective indicator for service demand, and conventional demand measures tend to underestimate potential demand for service in most situations. The study concludes that space–time demand measures that take into account people's activity‐travel patterns in space–time would lead to better estimation of demand for service in most cases.     

民国初期河南文博事业概述

河南是文物大省,民国初期河南文博事业得到较快发展。本文主要从文物法规、文物调查与发掘、文物保存保护等方面简要概述了20世纪初河南文博事业发展的概况。     

陕西省汉语方言概况

陕西省是一个方言丰富复杂的地区,除中原官话、晋语、西南官话这三大方言以外,还有赣语、江淮官话、湘语等。     

杏开二月

已经是二月仲春了,大地柔软,天气慢慢热起来了。一场习习的春雨,浇得人心头酥酥的。我第一次注意到,家门前的杏树开了。枝干上,星星点点,挑着几朵白,轻盈得很,把薄薄的心打开,驻足美的枝头,观赏人间烟火。背后是灰灰的庭院,低矮的