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71.
In Italy, as in much of Europe, the beginning of the new century has brought a crucial period of change to the television system. The change affects technology, strategies and regulation of the medium. This article starts by reconstructing the current situation and the emerging trends at a global level. It then analyses the state of the Italian television industry on the eve of the introduction of digital terrestrial broadcasting, setting out the opportunities and potential developments this opens up.  相似文献   
72.
Masonry building aggregates are large parts of the Italian building heritage often designed without respecting seismic criteria. The current seismic Italian code does not foresee a clear calculation method to predict their static nonlinear behavior. For this reason, in this article a simple methodology to forecast the masonry aggregate seismic response has been set up. The implemented procedure has been calibrated on the results of two FEM structural analysis programs used to investigate three masonry building compounds. As a result, a design chart used to correctly predict the base shear of aggregate masonry units starting from code provisions has been set up.  相似文献   
73.
A multi-proxy study (pollen and NPPs, geochemical composition and radiocarbon dating), combined with principal components analysis, was applied to a core sampled in the Monte Areo mire (Asturias, N Spain), which covers the last 11,600 years cal BP. Both signals of Holocene climate change and transformations by human activities were recorded.  相似文献   
74.
The lack of written sources for many of the medieval castles in the northern Apennines (Italy) makes it difficult to completely establish the most ancient historical phases of these settlements. The church of San Michele belongs to an abandoned fortified settlement of the Castle of Benabbio, in the mountains surrounding Lucca. Thanks to an epigraph still visible on the façade, the church foundation is dated back to AD 1218. However, several archaeological findings at the settlement seem to suggest stages of encastlement that are older than the church foundation.  相似文献   
75.
In Modern Chinese, xing is the character most commonly used to denote sex, gender and sexuality. However, the character was a specialist Confucian term originally meaning ‘human nature’ in Classical Chinese, and only came to signify both sex and human nature in the early twentieth century. This usage was invented by Japanese intellectuals in the late nineteenth century for their translations of sexological texts from Europe, in which they encountered the concept of sex as a natural drive and the fundamental core of individuals. This article investigates the convoluted linguistic career of xing, and argues that in China in the 1920s, sex/xing became the point of anchorage for a new politics, which naturalised sex, legitimised talk about reproduction and desire, and made imperative the intensification of the production of scientific knowledge on sex (and by extension ‘human nature’). It is emphasised that the history of xing in China in the 1920s is not just a curiosity or appendage to more ‘mainstream’ history of sexuality; rather, it is impossible to appreciate the global nature of modernity without a thorough understanding of the circulation of sexual ideas.  相似文献   
76.
This article describes tests investigating a feasible source of passive damping for post-tensioned glue-laminated (glulam) timber structures. This innovative structural system adapts precast concrete PRESSS technology [Priestley et al., 1999] to engineered wood products combining the use of post-tensioned tendons with large timber members. Current testing is aimed at further improvement of the system through additional energy dissipation. Testing has favorably compared glue-laminated timber (not previously implemented in this way) with laminated veneer lumber (LVL) used in New Zealand. After initial benchmark testing with post-tensioning only, a simple, minimally invasive and replaceable type of hysteretic damper was added.  相似文献   
77.
78.
ABSTRACT

The twenty-one maps of Spain that comprise the Escorial atlas (El atlas de El Escorial) and the later notebook compiled by Pedro de Esquivel for another map of Spain have long been confused. Recently identified documents in the Royal Library, Stockholm, have allowed us to recognize the two works as completely separate and to shed new light on each. In this article we describe their respective histories, starting with the Escorial atlas, now known to have been commissioned by Emperor Charles V from the Sevillian cosmographer Alonso de Santa Cruz, who between c.1538 and 1545 produced an index map and 20 regional sheets drawn to the scale of 1:400 000. We then go on to show how, later in the century (between c.1552 and 1565), Pedro de Esquivel was using a version of the topographical methods described in Peter Apian’s Cosmographia to assemble data for the map of Spain commissioned by Philip II before and just after he became king in 1556. Esquivel died in 1565 before all the data had been collected, his map was never drawn, and his notebooks, with all his astronomical measurements and calculations of angles and distances, took a curious journey that ended in Stockholm in the archives of the Royal Library of Sweden.  相似文献   
79.
Caribbean archaeology traditionally has focused on culture history and migrations while social and political issues have been mostly ignored. Recent studies, however, have begun to overcome these deficiencies by paying more attention to some of the intangible aspects of prehistoric groups and by improving field methodology to gather the appropriate data. In general, sociopolitical organizations in the pre-Hispanic Caribbean were both spatially and temporally diverse. Nevertheless, despite advancements in data collection, analyses have been hindered by the use of improper analytical units and scales of analysis, as well as our overreliance on historical data for the reconstruction of social and political organizations. These methodological problems have (1) hidden the variability present in the archaeological record and (2) limited our explanatory potential and understanding of past societies in the Caribbean.  相似文献   
80.
Soapstones (talc-bearing schists) and garnet chlorite schist artifacts found in Medieval archaeological sites of Tuscany (Central Italy) were classified, in order to define provenance of the different lithotypes. In Italy and throughout the Central Europe, these greenschist facies metamorphic rocks are generally known, among the archaeologists, as the pietra ollare from the Alps. The investigated Tuscan archaeological sites are between 6 and 13th century AD and were strictly linked, in that period, to the well defined network trade running along Tyrrhenian coast. Samples come from little containers used for cooking and preserving food and showing traces of lathe manufacturing at their sidewalls. According to modal mineralogy, petrographic texture, XRD, SEM-EDS and whole rock chemistry we recognised, among the 18 studied findings, three different petrographic groups of the Alpine pietra ollare. (i) Fine grained magnesite talc schists (i.e. soapstones) from outcrops of the Central Alps located in the Valchiavenna area. (ii) Garnet chlorite schists from the Valle d'Aosta region. (iii) Amphibole talc schists (i.e. soapstones) with a provenance in the Ticino area. It is worth noting that artifacts of pietra ollare lithotypes from the Western Alps (i.e. garnet chlorite schists and amphibole talc schists) were not detected in the archaeological sites of the Middle Adriatic coast of the Central Italy, belonging to the same Medieval time interval. This emphasises that the petrographic groups of pietra ollare from the Alps spread to the south of the Po Plain according to Western and Eastern trade along the Italian Peninsula, using respectively, the Tyrrhenian and the Adriatic Sea commercial routes.  相似文献   
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