نتایج جستجو برای: air transport

تعداد نتایج: 469760  

Background Transport policy and practice impacts health. Environmental Impact Assessments (EIAs) are regulated public policy mechanisms that can be used to consider the health impacts of major transport projects before they are approved. The way health is considered in these environmental assessments (EAs) is not well known. This research asked: How and to what extent was human health considere...

Journal: :Indoor air 2009
S Mazumdar Q Chen

UNLABELLED Quick information on airborne infectious disease transmission in airliner cabins is essential to reduce the risk of infection of passengers and crew members. This investigation proposed a one-dimensional analytical model that can predict the longitudinal transmission of airborne contaminants or disease viruses inside an airliner cabin. The model considered both diffusive and convecti...

2007
Mark Holzer Timothy M. Hall

[1] The role of low-level transpacific paths in bringing east Asian air to the North American west coast surface is determined using conditional transit-time distributions. These distributions are computed with the MATCH transport model driven by NCEP reanalysis data. Transpacific paths that lie entirely below 2.2 km contribute negligibly to the west coast column burden of east Asian air. Howev...

Journal: :Prehospital emergency care : official journal of the National Association of EMS Physicians and the National Association of State EMS Directors 2002
Stephen H Thomas Kenneth A Williams David W Claypool

The NAEMSP recognizes the multifaceted and integral position of a medical director for an air medical transport program and the EMS community at large.

2001
R N Colvile E J Hutchinson J S Mindell

Transport first became a significant source of air pollution after the problems of sooty smog from coal combustion had largely been solved in western European and North American cities. Since then, emissions from road, air, rail and water transport have been partly responsible for acid deposition, stratospheric ozone depletion and climate change. Most recently, road traffic exhaust emissions ha...

2010
Chun Zhao Yuhang Wang Qing Yang Rong Fu Derek Cunnold Yunsoo Choi

[1] Tropospheric O3 columns retrieved fromOzoneMonitoring Instrument andMicrowave Limb Sounder measurements, CO columns retrieved from Measurements of Pollution in the Troposphere, and tropospheric O3 and CO concentrations retrieved from the Tropospheric Emission Spectrometer from May to August in 2006 are analyzed using the Regional Chemical and Transport Model to investigate the impact of the...

1996
Jennet VASS

This paper compares labour productivity in the airline industry in the UK, the US, Germany and France. 1992 estimates have been produced for the countries as a whole and for individual airlines within these countries. Scheduled and non-scheduled services were considered and revenue weights were used to aggregate freight and passenger services. The UK had a productivity lead over the other count...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران - دانشکده علوم اداری و مدیریت بازرگانی 1380

چکیده ندارد.

2016
Nicholas Williard Christopher Hendricks Bhanu Sood Jae Sik Chung Michael Pecht Izumi Taniguchi

Lithium-ion batteries are shipped worldwide with many limitations implemented to ensure safety and to prevent loss of cargo. Many of the transportation guidelines focus on new batteries; however, the shipment requirements for used or degraded batteries are less clear. Current international regulations regarding the air transport of lithium-ion batteries are critically reviewed. The pre-shipping...

2017
Dimitrios J. Dimitriou

Considering a worldwide tendency, air transports are growing very fast and many changes have taken place in planning, management and decision making process. Given the complexity of airport operation, the best use of existing capacity is the key driver of efficiency and productivity. This paper deals with the evaluation framework for the ground access at airports, by using a set of mode choice ...

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