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51.
ABSTRACT

Considerable archaeobotanical datasets describe cereal cultivation in north-eastern France, from the Iron Age to the Roman period. This study aims to complement these by using stable isotope analysis on charred cereal grains. Soil fertility was investigated through δ15N and δ13C analyses of 1480 charred cereal grains, dated from the Late La Tène to the Late Antiquity periods. In the Île-de-France, charred grain Δ13C values suggested good hydric conditions, with drier episodes in the 1st and 3rd century AD; while in Champagne, the lower Δ13C values for spelt reflect the lower water holding capacity of the chalky soils. A wide range of cereal δ15N values (0.8–8.7‰) implies a wide range of soil fertility conditions. Jouars-Pontchartrain and Palaiseau (Île-de-France) yielded the highest cereal δ15N values, whereas Acy-Romance (Champagne) delivered among the lowest. From these three sites, the δ15N values of red deer bone collagen were used to estimate the reference δ15N values for unmanured plants. Unlike in Acy-Romance, there were significant differences in Palaiseau and Jouars-Pontchartrain, indicating that the cultivated cereals inherited their high δ15N values from manured soil. At Jouars-Pontchartrain, the δ15N value (almost 9‰) suggested a high trophic level manuring source, possibly from pig and/or human faeces.  相似文献   
52.
The stable carbon and nitrogen isotope ratios of collagen of seven bones from each of three rabbits raised on a monotonous diet, and of two bones from each of eight female and seven male mink raised on another monotonous diet, were determined. The ranges of δ13C values and δ15N values were 0·5‰ and 0·6‰ for the rabbit bones and 1·0‰ and 1·4‰ for the mink bones. Uncertainties in the δ13C and δ15N values for prehistoric human diets estimated from the isotopic composition of collagen from the small numbers of bones which are typically available for analysis, and thus likely to be of the order of ±1‰.  相似文献   
53.
Over a period of some 100 years it has gradually been accepted that the human skeletal remains found in the late nineteenth century in ancient gravels at Galley Hill, Kent are not those of early man, but are of much more recent date. This conclusion was finally verified by means of relative (N, F) and absolute (14C) dating. Here we present the results of further analysis of the remains from Galley Hill for their uranium content by a method having general application to the relative dating of fossil human and other mammalian bone.  相似文献   
54.
"月明沧海"琴为上海博物馆藏品,元至正壬辰(公元1352年)制造。琴额部有两处木质缺洞,木质纤维素腐烂,蛀眼19个,额部其它部位漆颜色暗淡,琴左侧面下方、琴额背面均有缺损。对这件古琴制定修复方案,并开展清洁、处理蛀洞、分析灰胎、加固、补配、批灰、涂漆、打磨、做旧等保护修复工艺流程。结果表明,传统修复工艺与现代科学技术检测的结合,使此件文物的修复工作相当成功。  相似文献   
55.
Hair and bone samples procured from the remains of Tycho Brahe were analysed by several analytical techniques. In segmented hair samples, concentrations of Fe, As, Ag and Au at the tips exceeded values for the contemporary population; however, they decreased towards the hair bulbs, similarly to Hg, indicating that recent exposure that was discontinued ~2 months prior to Brahe's death. Several other elements did not follow this pattern. Analyses of bones revealed signs of long‐term exposure to Au, while many other elements were within expected ranges. Histopathological examination of bone sections yielded no signs of severe bone metabolic disorders.  相似文献   
56.
Accurate interpretation of the cause and timing of bone breakage is essential for understanding the archaeological record. However, many variables potentially influencing break morphology have yet to be systematically explored. Focusing primarily on hammerstone breakage, we introduce new analytical methods for comparing fracture angles using the absolute values of the angle from 90°. We systematically control for intrinsic variables such as taxon, skeletal element, limb portion and skeletal age. We also compare experimental assemblages of femora broken by hammerstone and spotted hyena (Crocuta crocuta). We show that fracture angles are influenced by breakage plane, skeletal element and limb portion. While the latter two have been suggested before, this is the first time the differences have been quantified. We suggest that researchers stratify their assemblages by these variables if they are using fracture angles in analyses. At the assemblage level, hyenas created more oblique fracture angles on oblique breaks than did hammerstones.  相似文献   
57.
Isaac Newton, like many of his contemporaries, appears to have distinguished between the practice of divinity, founded on divine revelation, and philosophical considerations of God derived from the study of nature. This article evaluates these distinct modes of divine discourse through a close reading of the chymical content of Newton’s optical writings and his correspondence with Thomas Burnet regarding Genesis. Newton’s chymical exploration of divine activity in the natural world in Query 31 to the Opticks (1704) seems independent from Scripture in its physico-theological demonstration of God from natural phenomena and its divine metaphysical reliance on a priori concepts of God to establish principles of nature. Nonetheless, the sensorium analogy by which he explored divine agency in nature drew directly from the biblical doctrine of the imago Dei. Moreover, Newton used his chymical understanding of nature to access the natural-philosophical realities behind the accommodated words of the Mosaic creation account.  相似文献   
58.
We studied the composition, colour chromaticity and form of application of red pigments in human bone samples from seven Classic period Lowland Maya sites. The samples were analysed by X‐ray diffraction, scanning electron microscopy (SEM) and X‐ray energy‐dispersive spectroscopy (EDS). Colour was measured using conventional colour identification standards (Munsell) and reflectance spectroscopy. Cinnabar and hematite were identified as the pigments used. We conclude that the reflectance method has advantages over conventional visual results, as it provides precise, objective and quantifiable optical data to distinguish the chromaticity, colour saturation and brightness of the pigments.  相似文献   
59.
甲骨文中的“(?)”字旧释为黍是有问题的,从对贞卜辞、成套卜辞、相间卜辞、同期卜辞以及与水的亲密关系、古文献金文习语、种植方式来看,它符合水稻亲水的特征,应是五谷作物中的“稻”字。  相似文献   
60.
Bone chemistry paleodietary studies are emerging as important research areas in archaeology, biological anthropology, and paleontology. With appropriate controls, the inorganic and organic chemical composition of bones and teeth can provide information about past diet and habitat use. Chemical signatures are used to address individual dietary variability in early hominid fossils, paleontological remains, and more recent human and faunal populations.  相似文献   
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