نتایج جستجو برای: absolute chronology

تعداد نتایج: 92746  

2002
Michael L. Bender

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...

2014
Kevin Matzen Noah Snavely

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...

2010
Hsieh Fushing Shu-Chun Chen Travis J. Berge Òscar Jordà

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 specication 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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه قم 1385

چکیده ندارد.

Journal: :Radiocarbon 2022

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...

Journal: :Journal of Archaeological Science: Reports 2023

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...

2008
S V Sushkov

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-...

2010

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...

Journal: :Canadian bulletin of medical history = Bulletin canadien d'histoire de la medecine 2005
Mark L Robertson

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...

احمدی, مرضیه, ترکمن, جواد, قدس خواه دریایی, مهرداد, معروفی اقدم, بفرین, کریم زاده, سرخوش,

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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