Search results for "aviation"

Relationships Between Physical Fitness, Demands of Flight Duty, and Musculoskeletal Symptoms Among Military Pilots.

2015

Although the mechanisms of G-induced stresses on the spinal structure of military pilots are well understood, less is known about relationships between the intensity of physical activity, fitness, occupational musculoskeletal symptoms, and the degree of resulting disabilities. During an aeromedical examination, Finnish military pilots answered a questionnaire on their flying experience, the occurrence of flight duty-related pain, the degree of resulting disabilities, and the intensity of physical activity they conducted. 195 males were selected for further analysis. They were divided into three groups, designated high G, low G, and HQ, according to their current flight duty profile. 93% of …

The application of the Market Economy Investor Principle to assess the existence of economic advantage in case of differentiated airport charges of t…

2019

The commercial aviation market is one of the fastest growing and most liberalised sectors of the economy in the EU. Development of low cost carriers changed the aviation world as regional airports experienced a boost of traffic and prospects of their financial sustainability. On the other hand, the expansion of low cost carriers in the EU airports resulted in many complaints from full service airlines. This resulted in the development of case law, both at the Commission and The Court of Justice of the European Union (CJEU) level. According to the case law, price differentiation of airport charges is not considered as granting of economic advantage to the particular undertaking if a market e…

Contrail ice particles in aircraft wakes and their climatic importance

2013

[1] Measurements of gaseous (NO, NOy, SO2, HONO) and ice particle concentrations in young contrails in primary and secondary wakes of aircraft of different sizes (B737, A319, A340, A380) are used to investigate ice particle formation behind aircraft. The gas concentrations are largest in the primary wake and decrease with increasing altitude in the secondary wake, as expected for passive trace gases and aircraft-dependent dilution. In contrast, the measured ice particle concentrations were found larger in the secondary wake than in the primary wake. The contrails contain more ice particles than expected for previous black carbon (soot) estimates. The ice concentrations may result from soot-…

The emission reduction potential of electric transport modes in Finland

2021

The transportation sector has become the fastest growing source of greenhouse gas (GHG) emissions. One solution to mitigate the impacts is a shift towards electric modes. Where previous studies have only focused on the replacement of individual modes, our study presents a more holistic approach by comparing land-based, water-based and airborne transportation modes. We study the GHG emission reduction potentials of electric cars, buses, trains, ferries and aircraft in comparison to existing modes on 34 routes within Finland and across the Baltic Sea to Sweden and Estonia. By comparing the GHG emissions in carbon dioxide equivalents (CO2-eq) per passenger kilometer for each mode, we also cons…

Perspective of aviation as one of the elements of Ukraine`s national security of Ukraine on the way to NATO

2016

ALTERNATIVE MODELS FOR REGIONAL AIRPORTS IN LATVIA

2021

Regional airports play a significant role inpromotion of connectivity and regional development. This is one of reasons whyairports are treated as public assets and in 77 % cases (airportsproviding scheduled air transport services) owned and operated by public sectorin the EU. 71 % of these publicairports have corporatized airport operators. Latviahas threepublic civil aviation airports planned for scheduled flights until 2015: Riga InternationalAirport as well as Liepaja Airportand Ventspils Airport (Kurzeme planning region). Latviacurrently has decentralised operational model of airports. Riga InternationalAirport is owned by state and operatedby a joint stock company.Regional airports are…

Feasibility of functional magnetic resonance lung imaging in Australia with long distance transport of hyperpolarized helium from Germany.

2008

MRI of the lung using hyperpolarized helium as an inhaled contrast agent has important research applications and clinical potential. Owing to the limited availability of hyperpolarized helium, this type of imaging has not been performed in the human lung outside of North America or Europe. The objective of this study was to test the feasibility of imaging human lungs in Australia using hyperpolarized helium gas imported from Germany.A Bruker 2-Tesla whole-body magnetic resonance scanner located in Brisbane, Australia was adapted with a helium-3 radiofrequency transceiver coil. Helium-3 was hyperpolarized to 72% in Mainz, Germany and airfreighted to Brisbane. The time taken for the journey w…

Neck and Shoulder Muscle Activation Among Experienced and Inexperienced Pilots in +Gz Exposure

2017

Background The aim of the present study was to compare differences in electromyography (EMG) activation of the neck and shoulder muscles between groups of inexperienced and experienced pilots during controlled +Gz exposure in a centrifuge. Methods The subjects were volunteer cadets (inexperienced group) and lieutenants (experienced group) undergoing their first centrifuge training. The first group did not have any high performance aircraft (HPA) experience, while the latter one had a 1-yr experience of intense flying of HPA. During the centrifuge run, EMG activity was recorded from the left and right shoulder, neck flexor, and neck extensor muscles. Results The pilots without HPA experience…

The effect of an eco-label on the booking decisions of air passengers

2022

Abstract In the last few years there has been an increasing attempt to find solutions on how to mitigate the environmental impacts of air travel. Behavioral change has hereby been identified as the measure with the most significant impact. One way to encourage behavioral change is the use of eco-labels. Eco-labels have, to date, received scant attention in the aviation industry, and their effect on air travel behavior is still largely unknown. This study explores the effect of an eco-label on the booking decisions of passengers. We conduct a stated choice experiment with 553 air passengers. Our findings show that providing passengers with an eco-label leads to behavioral change, as the labe…

Darbības vārda laika un aspekta lietojums angļu valodā aviācijas teorētiskajās apmācībās

2021

Valodnieki jau iepriekš ir pētījuši ne tikai darbības vārda laiku un aspektu angļu valodā, bet arī darbības vārda izteiksmi, tādējādi izanalizējot precīzu darbības vārdu laika un aspekta pielietojumu un veicot iegūto rezultātu apkopojumu. Ir veikti vairāki pētījumi, kas koncentrējas un darbības vārda un aspekta lietojumu angļu valodas kā pirmās svešvalodas apguvē un kas piedāvā studentiem skaidras darbības vārdu laika un aspekta vadlīnijas vieglākai angļu valodas apguvei. Šī pētījuma mērķis ir analizēt darbības vārda laika un aspekta pielietojumu un to formu biežumu aviācijas teorētiskajās apmācībās, tāpēc kopumā tika veikti 8 audio ieraksti no pilotu skolas teorētiskajām lekcijām. Vieglāka…