نتایج جستجو برای: absolute chronology
تعداد نتایج: 92746 فیلتر نتایج به سال:
We present data on the O2/N2 ratios of trapped gas samples for the entire length of the Vostok climate record. As in other cores, O2/N2 ratios in these samples are less than the atmospheric ratio, by a small and variable amount, because O2 is selectively excluded during the gas trapping process, and because O2 is also preferentially lost in poorly preserved core samples. Samples younger than 15...
Time Acknowledgments This work was funded in part by NSF grants IIS-1111534 and IIS-1149393, by support from the Intel Science and Technology Center for Visual Computing, and by support from Amazon Web Services in Education. References [1] Bryan Klingner, David Martin, James Roseborough. “Street View Motion-from Structure-from-Motion”. ICCV 2013. [2] Grant Schindler and Frank Dellaert. “Probabi...
This paper introduces a new empirical strategy for the characterization of business cycles. It combines non-parametric decoding methods that classify a series into expansions and recessions but does not require specication of the underlying stochastic process generating the data. It then uses network analysis to combine the signals obtained from di erent economic indicators to generate a uniqu...
چکیده ندارد.
ABSTRACT The possibility to conduct new fieldwork projects in previously largely unexplored Iraqi Kurdistan during the past decade has reinvigorated research into transformative fifth third millennium BCE (Chalcolithic Early Bronze Age) southwest Asia when human societies grew from small, autonomous villages centralized states with urban centers. Major efforts synchronize stratigraphic sequence...
The present work aims at the archaeological characterisation and historical contextualisation of two large enclosures recently located through remote sensing in Laboreiro Mountain on border between Portugal Galicia: Lomba do Mouro Chaira da Maza. Ancient written sources, sensing, survey, absolute dating will be combined order to shed new light these enclosures. Given specificity structures cont...
Quantum complex scalar field in the two-dimensional spacetime with closed timelike curves and a time-machine problem Abstract It is considered the quantum complex scalar field which obeys the authomorphic condition in the two-dimensional spacetime with closed timelike curves and the chronology horizon. The renormal-ized stress-energy tensor is obtained. It is shown that the value of the stress-...
This paper introduces a new empirical strategy for the characterization of business cycles. It combines non-parametric decoding methods that classify a series into expansions and recessions but does not require specification of the underlying stochastic process generating the data. It then uses network analysis to combine the signals obtained from different economic indicators to generate a uni...
The purpose of this annotated chronology is to help provide a framework for research into the history of the first five years of the AIDS epidemic in Canada but especially as it unfolded in Toronto, Canada. The chronological entries can be used to identify the order and relationship of particular themes, while the sources listed in the chronology can be used as points of reference for further i...
Due to variances in response of different tree species in different habitats to climate changes, further studies in this field is clearly required. On the other hand, the lack of studies on chronology to evaluate the effect of solar radiation on radial growth of tree species due to lack of long term data of an important climatic variable, new approaches to determine the effect of this parameter...
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