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61.
Gabriel M. Ingo Altan Çilingiroğlu Gabriella Di Carlo Atilla Batmaz Tilde De Caro Cristina Riccucci Erica I. Parisi Federica Faraldi 《Journal of archaeological science》2013
The microstructure and chemical composition of blue cakes, found during the archaeological excavation of the Ayanis fortress (Eastern Anatolia, Turkey), have been investigated by means of scanning electron microscopy combined with energy dispersive spectrometry (SEM–EDS), X-ray diffraction (XRD), micro-Raman (μ-Raman) and optical microscopy (OM) techniques. The analysis of the Ayanis cakes has shown the presence of Egyptian blue (i.e. CuCaOSi4O10, cuprorivaite), as the major component, intermixed with minor amount of other phases such as partially reacted quartz grains, an adherent glass phase and copper oxides. Since the finding of Egyptian Blue in Turkey has been never reported so far, great attention has been paid to its characterisation. The micro-chemical and micro-structural investigations of the Ayanis cakes have allowed a further insight into the manufacturing process and into the sources of the starting materials. The results of the characterisation have revealed some significant differences with respect to Egyptian blue cakes found in Egypt and Mesopotamia, as for instance the absence of tin excluded the use of bronze scraps or filings in their preparation differently from those produced in Egypt and Mesopotamia. Furthermore, some peculiarities of Egyptian blue found in Ayanis, as the detection of zinc in the cakes, allow to put forward the hypothesis of a local production considering that a large part of the bronze artefacts found at the Ayanis fortress is characterised by the presence of zinc as minor alloying element. 相似文献
62.
旅游已成为个体寻求自我发展的一种手段。本文以大众旅游者个体为研究对象,探索旅游对旅游者自我发展的影响及其作用机制。研究运用扎根理论研究方法,对所搜集的资料逐级编码、概念化和范畴化,发现大众旅游者自我认知的变化具有普遍性,构建了旅游者情境自我发展过程的框架,最终得到核心范畴——旅游者自我发展。研究发现,旅游者在旅游过程中或结束后对自我的内省能够促进自我发展;影响旅游者内省行为的两条路径分别是情绪过程和意志过程;情绪过程受到旅游者对旅游情境因素的知觉和出游动机的双重影响;意志过程主要受旅游者出游动机的影响。 相似文献
63.
邓小平的侨务思想是马列主义基本原理与当代中国实践与时代特征相结合的产物。他根据新时期的特点和国际形势的新变化 ,用新的思维和观点 ,继承、丰富和发展了毛泽东、周恩来所创建的中共统一战线理论。邓小平恢复和肯定“海外关系”的正确地位 ,作出海外侨胞是爱国的基本评价 ,强调要认真落实各项侨务政策 ,保护华侨华人的正当合法权益。为解决我国现代化建设中缺乏资金、人才和技术等问题 ,邓小平提出引进华侨华人和港澳台同胞的资金 ,引进华侨华人的人才与智力 ,吸引海外侨胞参与中国发展方略设计三大战略方针 ,并把统一祖国、振兴中华作为侨务工作的长期战略任务 相似文献
64.
Osvaldo Di Paolo 《Romance Quarterly》2013,60(3):210-230
This article investigates the emergence of detective fiction and film from 1994 to the present. The corpus appears during the government of Carlos Menem and its intent to insert Argentina into a globalized economy. Poverty, insecurity, and violence prevail in Argentine society, and many detective novels, based on real-life murders, appear in 1994. Moreover, this type of literature continues to proliferate in the twenty-first century. In this essay, I explore one of the many stories written by Marisa Grinstein. I begin with the newspaper article and trace its transformation into short fiction and television series. The articles about the homicide follow the tendencies of the sensationalist yellow press. The author and the film director of “Marta Odera, monja,” however, transform the events, following and also subverting the characteristics of the classic detective fiction and the hard-boiled. In doing so, these recreations of this particular murder case denounce the domestic violence that exists in Argentine society. 相似文献
65.
Tobias Smith Felice C. Ponzo Antonio Di Cesare Stefano Pampanin David Carradine Andrew H. Buchanan 《Journal of Earthquake Engineering》2014,18(1):147-167
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
66.
M. Massa S. Lovati D. Di Giacomo S. Marzorati E. D'Alema P. Augliera 《Journal of Earthquake Engineering》2013,17(7):1029-1046
In this work, the results of a quick microtremor survey performed in the municipalities situated in the epicentre area of the Ml 5.2 2004 Salò earthquake (North Italy) are presented. The aim of this study is to understand if the large amount of damage caused by the event (about 215 million euros only in the areas near to the epicenter) is correlated more to the local surface geology conditions or to the vulnerability of ancient Italian historical centers. A preliminary seismic zonation was carried out in 5 villages including about 30 measurements of microtremors analyzed by the Nakamura technique (hereinafter HVNR). The points of measurement were carefully selected considering sites located both near damaged buildings and over different local geology conditions (alluvium deposits, fluvial-glacial deposits, debris fans and rock). In order to strengthen the HVNR results and to evaluate the reliability of the Nakamura analysis, a comparison with spectral ratios calculated on earthquakes (hereinafter HVSR) recorded at the strong motion station of Vobarno was made. In general, the outcomes of the survey highlight a possible correlation between local geology conditions and ground motion amplification for different frequency bands. In order to check if this evidence is linked with the damage, a series of macroseismic intensity values were collected for different zones of the investigated area, and a nonparametric correlation approach was used to establish a possible correlation between damage and ground motion amplification for selected frequency bands. The results show, from a statistical point of view, that in the area surrounding the epicenter of the November 24, 2004 mainshock, the damage pattern is not strongly dependent upon the local surface geology but more correlated to the low quality of the civil structures present in the area, including old buildings of the last century. 相似文献
67.
M. Massa S. Marzorati E. D'Alema D. Di Giacomo P. Augliera 《Journal of Earthquake Engineering》2013,17(6):943-967
The aim of this article is to investigate the ground motion attenuation of the most industrialized and populated regions of Italy, evaluating the capability of different approaches to estimate site dependent models. The 5.2 local magnitude earthquake on November 24, 2004 shocked the areas of Northern Italy producing damage of about 215 million euros. The data set, including 243 earthquakes of local magnitude up to 5.2, has been collected in the period December 2002–October 2005 by 30 three-component seismic stations managed by Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Milano (INGV-MI). Empirical attenuation relationships have been estimated for horizontal peak ground velocity (PGHV), acceleration (PGHA), displacement (PGHD), and for response spectral acceleration (SA) for periods between 0.1 and 1.5 s. To estimate suitable attenuation models, in particular for sites characterized by thick sedimentary geological formations, a soil discrimination based on EU8 code can lead to wrong evaluations. On the contrary, a classification based on H/V spectral ratios of seismic ambient noise (NHV) allows the models to fit better real and predicted data and to reduce the uncertainties of the process. For each receiver, NHV have been strengthened by additional H/V spectral ratio of earthquake data (EHV), calculated considering different portions of the analysed signals. In order to validate the PGHA attenuation relationship for greater magnitudes, accelerometric records, relative to Central-Northern Italy strong motions occurring in the last 30 years, have been collected and superimposed to our attenuation curves. 相似文献
68.
Abstract. This paper provides an empirical investigation of the advantages accruing to workers in industrial clusters. Using a unique data set based on the Cluster Mapping Project of the Italian National Statistical Institute, we examine whether industry agglomeration leads to wage and labor mobility differentials. We estimate complete Mincerian wage equations, investigating whether returns to seniority and education are a possible source of differentiation. We find that working in an industrial cluster reduces the returns to education, does not affect the returns to seniority, and does not provide average wage premia. On the other hand, industrial agglomeration positively affects the likelihood of being employed, of starting a business, and of making a transition from payroll employment to entrepreneurship; it also increases blue‐collar worker mobility across jobs. 相似文献
69.
70.