نتایج جستجو برای: air transport

تعداد نتایج: 469760  

2013
Clara Orbe Mark Holzer Lorenzo M. Polvani Darryn Waugh

[1] We introduce rigorously defined air masses as a diagnostic of tropospheric transport. The fractional contribution from each air mass partitions air at any given point according to either where it was last in the planetary boundary layer or where it was last in contact with the stratosphere. The utility of these air-mass fractions is demonstrated for the climate of a dynamical core circulati...

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2016
Frauke Hennig Dorothea Sugiri Lilian Tzivian Kateryna Fuks Susanne Moebus Karl-Heinz Jöckel Danielle Vienneau Kees de Hoogh Michael Memmesheimer Hermann Jakobs Ulrich Quass Barbara Hoffmann

Two commonly used models to assess air pollution concentration for investigating health effects of air pollution in epidemiological studies are Land Use Regression (LUR) models and Dispersion and Chemistry Transport Models (DCTM). Both modeling approaches have been applied in the Ruhr area, Germany, a location where multiple cohort studies are being conducted. Application of these different mod...

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2013
Lars Gorton

This Essay is about air transport and EC competition Law. The air transport industry has, in many countries, developed as a mixture of public utility and commercial venture. With the deregulation of the airline market, the EC Commission has also, to an increasing extent, become involved in the competition aspects of the airline industry. Part I deals with the transportation industry. Part II di...

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2012
B. Chen X. D. Xu T. L. Zhao

B. Chen, X. D. Xu, S. Yang, and T. L. Zhao State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China Key Laboratory for Atmospheric Physics and Environment CMA-Nanjing University of Information ...

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Journal: :Journal of the American College of Surgeons 2002
Shawn D Safford Thomas Z Hayward Kristine M Safford Gregory S Georgiade Henry E Rice Michael A Skinner

BACKGROUND The purpose of this study is to compare air transportation of critically ill pediatric patients with a mixed air-ground transportation system by evaluating timeliness, safety, and cost. The setting was a tertiary care "hub" center with three outlying-referral "spoke" facilities. STUDY DESIGN Our study included 96 children transported between June and December 1997, with 45% constit...

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2017
Stanislav KRAFT Denisa HAVLÍKOVÁ

Air transport can be considered as the most dynamic transport mode during recent decades. It is an important but also responsive indicator of global social, economic, political and cultural cooperation in different areas. For this reason, air transport is a unique source of various aspects of international relations. The principal goal of this study is an analysis of seasonality in the offer of...

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Journal: :Zeszyty Naukowe Uniwersytetu Przyrodniczo-Humanistycznego w Siedlcach. Seria: Administracja i Zarządzanie 2020

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Journal: :BMJ 1967

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Journal: :Transportation Overview - Przeglad Komunikacyjny 2016

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Journal: :Military Medicine 2009

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نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید

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