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11.
Relatively little is known about the possibilities and limitations of voluntary public programs. The so-called 33/50 Program for reducing releases of certain toxic chemicals into the environment provides a useful instance for examination. In an investigation of toxics-reduction outcomes, with states as units of analysis, economic and policy variables help to explain the results. In particular, channels and approaches used In communicating policy intentions are related to outcomes. Voluntary programs can make a difference, but the details of execution, including the extent and nature of field efforts, influence outcomes.  相似文献   
12.
本文论述了图们江地区国际性城市体系建设的必要性,提出了城市体系等级结构、职能结构和空间结构的构建设想及管理原则,并初步估算了城市体系发展各项基础设施建设及投资规模。  相似文献   
13.
The bodies and glazes of 27 early Western Zhou proto‐porcelain samples from Yejiashan cemetery, Hubei Province, were analysed using LA‐ICP–AES, SEM, XRD, a thermal expansion instrument and other analytical methods. The results indicated that the bodies of all samples were characterized by high silicon and low aluminium, and were made with porcelain stone raw materials found in the south of China. The glazes are typical of high‐temperature calcium glazes of the CaO (MgO) – K2O (Na2O) – Al2O3 – SiO2 series, with relatively high Mn and P content, which was probably caused by the addition of plant ashes. The physical properties and phase compositions of Yejiashan proto‐porcelain show that firing processes were still in the early stages of development in ancient China. Multivariate statistical analyses indicated that Yejiashan proto‐porcelain might have come from the Deqing area, in Zhejiang Province. These results provide new archaeological evidence for research on issues related to material flow in the Western Zhou dynasty.  相似文献   
14.
A human skull, buried about 2500 years ago in a Bronze Age cemetery at Jinggouzi, a site of an important ethnic group in ancient China, appeared to have characteristics of fibrous dysplasia. The CT images indicated a reduction in bone density and relatively homogeneous lesions. More features were revealed using CT reconstruction techniques. Lesions seen in low‐magnification images using a 3D deep‐field microscope had an irregular honeycomb‐like structure. At higher magnification, the trabeculae morphology and the gaps between the trabeculae were irregular and varied in size and shape. Paraffin‐embedded specimens stained with HE showed trabeculae with tortuous irregular arrangements varying in shape and width. The irregular trabeculae of woven bone has been described as having fibrous dysplasia. Molecular analysis of the GNAS gene indicated no mutation. This provides a non‐invasive approach for us to make more comprehensive diagnoses and to assist research into ancient human diseases.  相似文献   
15.
Yu Liu 《European Legacy》2018,23(6):674-691
Sir William Chambers was one of the most important English architects in the eighteenth-century, but both in his day and later his international recognition was closely connected with his admiration for and promotion of Chinese art, particularly Chinese landscaping. Between 1757 and 1773, Chambers published three treatises praising the ingenious mixture of nature and art in a Chinese pleasure ground, criticizing the then influential English gardener Lancelot (Capability) Brown, and trying to goad English garden design into the direction of China. He did not achieve his purposes mainly because he mixed what he knew as genuine about the Chinese gardening art with what he fantasized about it. While recent scholarship has focused on his fantasy, this article examines what Chambers knew or imagined about Chinese landscaping, what he and his detractors were for and against, and how the fiasco of his 1772 and 1773 treatises, which he brought upon himself, nevertheless helped to usher in a new phase in the English reception of Chinese landscaping ideas.  相似文献   
16.
李辰元  李延祥  赵哲夫 《北方文物》2018,(2):45-53,I0007,I0008
通过使用便携式荧光光谱分析仪(p-XRF)、扫描电子显微镜与能谱(SEM-EDS)等对渤海上京城宫城、匠造址、东廊、御花园出土的铁质遗物、有色金属遗物以及冶炼废弃遗物进行了初步研究,并对渤海上京城所进行的金属冶炼工业流程进行推演,同时试图通过遗物本身对渤海国冶金生产技术及商贸流通提供部分佐证。  相似文献   
17.
赵莉 《东南文化》2018,(3):108-113
参与性收藏是近些年来西方一些博物馆基于"记录今天"理念而新兴的收藏。从收藏的角度,参与性收藏是博物馆通过主题策划与活动设计,组织社会公众携相关物件加入博物馆收藏,并成为馆藏的一部分,以参与的方式将公众与博物馆物品、内容、语境联系起来,其主题多与当下社会发展、生产生活方式变迁等相关,方式上突破传统收藏相对单一、封闭的模式,具有流动、共享、多元、充满活力的特点。从藏品内涵上,具有"记录今天""关注日常""突出藏品与人的关联"等特点,丰富了博物馆藏品的内涵与外延,这是对传统收藏的丰富与推进。在参与性收藏的视野下,航海类博物馆收藏具有更深广的创新空间。  相似文献   
18.
As the criterion used by archaeologists for determining early white porcelain is quite ambiguous, the origin of Chinese white porcelain remains a point of disagreement. In this study, we systematically investigate 61 typical Xing porcelains of the late Northern dynasties to the early Sui dynasty (550–600 CE) using spectrophotometer, X-ray fluorescence (XRF), scanning electron microscopy (SEM), and X-ray powder diffraction (XRD), and analyze the differences between early white porcelain and celadon of Xing kiln in terms of their whiteness and raw materials characteristic. The results show that early white porcelain is a new type of ware that differs from celadon, which can be distinguished by whiteness, with a whiteness greater than 8% being early white porcelain and a whiteness less than 8% being celadon. It is assumed that the ancient potters created the whiter wares based on celadon by improving the glaze and selecting new raw materials for the body, but the production of this type of ware was short lived and subsequently refined in the Sui dynasty (581–618 CE) owing to the limited improvement in whiteness.  相似文献   
19.
清末民初在天津城市空间从传统的城厢向四乡拓展时,铁路的引入使该过程变得更为复杂剧烈。对于城市空间而言,铁路带来的变化并不能完全用商贸繁荣程度来衡量。东站在带来巨大的商贸利益的同时也阻断了沈王郭旺诸村居民的市内交通,使铁路两侧迥然不同,形成一块特殊的隔离区。西站的建立并没有使当地传统的商业中转中心复兴,反而因联运使得当地商业利益受到冲击。而不同城区居民也通过各自方式应对铁路带来的变化。沈王郭旺诸村居民通过呼吁政府修筑地道的方式将铁路带来的隔离效果略为降低。而西站附近居民通过疏通西站的方式使其没有彻底贯彻联运,保障了本地的商业垄断利益。  相似文献   
20.
20世纪八九十年代,一批受西方影响的以色列历史学家通过对大量解密文献的研判与调查,率先对犹太复国主义提出种种质疑,从而引发了以色列社会对主流意识形态的反思,形成了一种新的社会文化思潮——"后犹太复国主义",这些历史学家被称为"新历史学家"。他们的观点主要集中在对以色列国家合法性与官方历史阐释的修正、对犹太复国主义的重新解读、对以色列国家属性及其未来走向的质疑等方面,从而对以色列传统史学提出了挑战。"新历史学家"拓宽了历史研究的视域,推进了学术自由,有益于促进国家的世俗化与民主化进程,但他们的批判性大于建设性,有些主张过于激进且不切实际,并且在某种程度上加剧了以色列社会的动荡性。  相似文献   
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