scholarly journals ANALYSIS OF CONCRETE AND ASPHALT AIRPORT MOVEMENT AREAS FOR THE NEEDS OF REGIONAL AIRPORTS OF THE VISEGRAD FOUR COUNTRIES

2020 ◽  
Vol 3 (34(61)) ◽  
pp. 4-5
Author(s):  
K. Kováčiková ◽  
P. Janošková
Keyword(s):  
Service Life ◽  
Great Emphasis ◽  
Air Transport ◽  
Airport Pavement ◽  
Regional Airports ◽  
Air Safety

Aviation is currently the fastest growing sector of transport not only passengers but also goods. It is considered to be the most efficient, but also the safest, which is why great emphasis is placed on the efficiency and safety of air transport. A particularly important factor in air safety is the condition of operating areas at airports. Operating areas must meet the standards for the category of aircraft that will use them, while being properly maintained to maintain their safety. From a long-term perspective, the service life and costs associated with the operation of airport operating areas are also important. The aim of the article is to analyze the concrete and asphalt airport pavement surfaces of the regional airports of the Visegrad Four countries.

scholarly journals A Novel Highly Durable Carbon/Silver/Silver Chloride Composite Electrode for High-Definition Transcranial Direct Current Stimulation

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1962
Author(s):  
Lingjun Li ◽  
Guangli Li ◽  
Yuliang Cao ◽  
Yvonne Yanwen Duan
Keyword(s):  
Service Life ◽  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Silver Chloride ◽  
Cycling Performance ◽  
High Definition ◽  
Silver Silver ◽  
Sintered Ag ◽  
Silver Silver Chloride

High-definition transcranial direct current stimulation (HD-tDCS) is a promising non-invasive neuromodulation technique, which has been widely used in the clinical intervention and treatment of neurological or psychiatric disorders. Sintered Ag/AgCl electrode has become a preferred candidate for HD-tDCS, but its service life is very short, especially for long-term anodal stimulation. To address this issue, a novel highly durable conductive carbon/silver/silver chloride composite (C/Ag/AgCl) electrode was fabricated by a facile cold rolling method. The important parameters were systematically optimized, including the conductive enhancer, the particle size of Ag powder, the C:Ag:PTFE ratio, the saline concentration, and the active substance loading. The CNT/Ag/AgCl-721 electrode demonstrated excellent specific capacity and cycling performance. Both constant current anodal polarization and simulated tDCS measurement demonstrated that the service life of the CNT/Ag/AgCl-721 electrodes was 15-16 times of that of sintered Ag/AgCl electrodes. The much longer service life can be attributed to the formation of the three-dimensional interpenetrating conductive network with CNT doping, which can maintain a good conductivity and cycling performance even if excessive non-conductive AgCl is accumulated on the surface during long-term anodal stimulation. Considering their low cost, long service life, and good skin tolerance, the proposed CNT/Ag/AgCl electrodes have shown promising application prospects in HD-tDCS, especially for daily life scenarios.

scholarly journals Effectiveness of National Airlines in Europe – the DEA Approach

2016 ◽  
Vol 16 (2) ◽  
pp. 103-118 ◽  
Author(s):  
Agata Żółtaszek ◽  
Renata Pisarek
Keyword(s):  
Low Cost ◽  
Air Transport ◽  
Competitive Environment ◽  
Load Factor ◽  
Data Envelopment ◽  
Eu Member States ◽  
Analysis Methodology ◽  
Low Cost Carriers ◽  
Dea Approach ◽  
Regional Airports

Abstract National airlines operate in a highly competitive environment. EU airlines face a challenge to compete with low cost carriers, as a result of the liberalization process in the sector. European flag airlines of non-EU member states, not benefiting from liberalization, are forced to compete internationally. This research is focused on national carriers, as they provide the majority of service to and from central and regional airports. Therefore, to establish the most efficient entities on the passenger air transport market, DEA (Data Envelopment Analysis) methodology, has been utilized. The purpose of this paper is to evaluate the effectiveness of 29 chosen national airlines in Europe in the year 2013, using the DEA approach, to pinpoint the subset of fully-efficient market leaders, as well as potential sources of inefficiency, among less effective carriers. The analysis incorporates information on inputs (e.g. fleet, number of employees, number of countries and airports served) and outputs (revenue, annual passengers carried, load factor). The results show that more than 40% (12 of 29) researched airlines are effective and the other 34% are near-efficient. Moreover, outcomes suggest that “going big” may not increase effectiveness. It is harder to achieve full efficiency for big carriers than small ones.

Long-Term Prospects of the International Wine Trade

2018 ◽  
Vol 13 (4) ◽  
pp. 442-450 ◽  
Author(s):  
Olivier Bargain ◽  
Jean-Marie Cardebat ◽  
Raphael Chiappini ◽  
Corentin Laffitte
Keyword(s):  
New Zealand ◽  
Great Emphasis ◽  
Market Structures ◽  
On Demand ◽  
The United Kingdom ◽  
Comparative Advantages ◽  
The Future ◽  
Jel Classifications ◽  
Wine Trade

AbstractThis article discusses key comparative advantages of wine-producing nations and suggest prospective views on their evolution. Our methodology is twofold. First, we study comparative advantages in 16 countries using Porter's diamond. Then, we report results from a survey in which wine economists are asked to assess the future trade performance of these countries. Results are relatively consistent across methods regarding the future “heavy weights” like China, but also New Zealand and Chile, countries show the greatest potential to succeed in the future global wine trade. It is also expected that Georgia, the United Kingdom, and Australia play an important role, although to a lesser extent. Our findings indicate that comparative advantages in wine trade are neither uniform nor static; especially, terroir is no longer sufficient. The diamond approach contradicts experts from two countries in particular, France and Argentina, suggesting that experts put great emphasis on demand and market structures as key trade determinants for the future. (JEL Classifications: F14, Q17)

scholarly journals Regional Airports Influence Economic Development of the Region

2018 ◽  
Vol 236 ◽  
pp. 02004
Author(s):  
Václav Cempírek ◽  
Iveta Dočkalíková
Keyword(s):  
Economic Development ◽  
Water Transport ◽  
Freight Transport ◽  
Elbe River ◽  
Inland Water ◽  
The Elbe River ◽  
Regional Airports ◽  
Inland Water Transport ◽  
Technical Terms

The paper deals with the importance of regional airport for economic development of the particular region with the possibility to cover also freight transport. In technical terms it is called the logistics centre or Freight Village. The special emphasis is given to the Pardubice airport and to creation of logistics centre on the Elbe river. The logistics centre would link four types of transport – railway, road, air and inland water transport. Terminal of the combined transport, which lacks in long term in the region, is also a part of the logistics centre.

The Economics of Air Traffic Control

1980 ◽  
Vol 33 (1) ◽  
pp. 23-29
Author(s):  
Angus Hislop
Keyword(s):  
Traffic Control ◽  
Air Traffic Control ◽  
Air Traffic ◽  
Air Transport ◽  
Civil Aviation ◽  
Department Of Transportation ◽  
Private Industry ◽  
The Us ◽  
The Uk

This paper is based mainly on a study carried out in 1976/7 for the UK Department of Industry into the long-term development of air traffic control systems in Europe by a team drawn from the Civil Aviation Authority, the Royal Signals and Radar Establishment and private industry, in which Coopers and Lybrand provided the economic expertise.Until the early 1970s, air traffic control was almost completely neglected by air transport economists. Economists contributed to the planning of airports and airline operations but not to the third facet of the air transport system. However, in 1970–1, in conjunction with a programme of expansion and improvement of the country's airports and airways, the US Department of Transportation launched a major study of the airport and airways system. This was designed to establish an equitable charging policy between the different categories of user but in the event its recommendations in this area have only recently begun to be followed.

scholarly journals DEVELOPING INDICATORS FOR CAPTURING THE AIRPORTS DYNAMICS IN REGIONAL AND TOURISM DEVELOPMENT: EVIDENCE FROM GREECE

2020 ◽  
Vol 11 (1) ◽  
pp. 31-46
Author(s):  
Dimitrios Tsiotas ◽  
Spyros Niavis ◽  
Serafeim Polyzos ◽  
Artemis Papageorgiou
Keyword(s):  
Regional Development ◽  
Composite Index ◽  
Tourism Development ◽  
International Markets ◽  
Air Transport ◽  
Passenger Traffic ◽  
Transport Studies ◽  
Tourism Information ◽  
Regional Airports ◽  
National Economies

Air transport is an aspect of the transportation and communication sector, it is a capital and technology intensive component of the national economies, and it plays an important role in communication and trade, in tourism development, and generally in the economic and regional development. The major role of air transport in the support of distant communication makes it a valuable tool for the strategic planning and innovative marketing in tourism, especially for tourism policies addressed to international markets. Within this context, this paper studies air transport in Greece and particularly the regional dimension of the Greek air transport, by excluding the metropolitan airports of Athens and Thessaloniki. The paper examines the factors that determine the attractiveness of the Greek regional airports on data referring to air traffic statistics and on available spatial and tourism information. For measuring the dynamics of the regional airports in Greece in regional development, the paper introduces a composite index, which computes passenger-traffic change between time periods by considering an airports’ classification. Next, for measuring the airport dynamics in tourism development, an index is introduced in terms of the international arrivals and overnights per region. The results of applying the proposed indices comply with the observations of the common practice and they seem sufficient to be used in other areas of application. The overall approach provides a novel measure for air transport studies and it illustrates the contribution of the small and regional airports to tourism and regional development in Greece.

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