Results 11 to 20 of about 7,149 (164)

Inextensible Flows of Spacelike Curves According to Equiform Frame in 4-dimensional Minkowski Space R41

open access: yesWSEAS TRANSACTIONS ON MATHEMATICS, 2021
In this paper, we study inextensible flows of spacelike curves lying fully on a spacelike surface Ω according to equiform frame in 4-dimensional Minkowski space ℝ1 4 . We give necessary and sufficient conditions for this inextensible flows which are expressed as a partial differential equation involving the equiform curvature functions in 4-dimensional
W. M. Mahmoud, Alaa Hassan Noreldeen
openaire   +1 more source

Ranking methodology to prioritize high-speed railway corridors

open access: yesReview of Economic Perspectives, 2023
The purpose of this article is to create and calibrate a high-speed rail passenger traffic-based ranking model using historical high-speed rail ridership data from Spain.
Celebi Ismail
doaj   +1 more source

The disutility of driving below the speed limit on highways

open access: yesReview of Economic Perspectives, 2022
Reducing travel speed below the highway speed limit leads to savings in fuel consumption and CO2 emissions. However, car drivers may be reluctant to drive more slowly either because they do not want to lose time or for other reasons we refer to as ‘the ...
Filipi Nikol   +2 more
doaj   +1 more source

Exergy analysis of cascade refrigeration system working with refrigerant pairs R41-R404A and R41-R161

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
In this paper, a comparative study of vapour cascade refrigeration system performance with R41 – R161 and R41 – R404A refrigerant couples have been presented to find out best suited refrigerant between R161 and R404A in the high temperature circuit.
Ranendra Roy, Bijan Kumar Mandal
openaire   +1 more source

Variability in total cost of vehicle ownership across vehicle and user profiles

open access: yesCommunications in Transportation Research, 2022
Widespread adoption of electric vehicles (EVs) is a common and critical component of international strategies to mitigate environmental pollution, climate change and oil dependency.
Yulu Guo   +2 more
doaj   +1 more source

An application of conventional and advanced exergy approaches on a R41/R1233ZD(E) cascade refrigeration system under optimum conditions

open access: yesJournal of Thermal Engineering, 2022
Painstaking adjustment of an optimum low-temperature cycle (LTC) condenser temperature allows cascade refrigeration system (CRS) to operate at maximum performance. This study exhibits an original approach because, for the first time, advanced exergy analysis is implemented under an optimum LTC condenser temperature of CRS operating with R41/R1233zd(E ...
Cenker AKTEMUR   +1 more
openaire   +3 more sources

Slow Tourism – The Fashion for Slowness or a Conscious Choice?

open access: yesFolia Oeconomica Stetinensia, 2020
Research background: The fast pace of life of contemporary people living in developed countries results in a search for peace and relaxation, which is reflected in new forms of tourism.
Zielińska-Szczepkowska Joanna
doaj   +1 more source

Road accidents in Spain: Are they persistent?

open access: yesIATSS Research, 2021
Traffic accidents involve great costs both at an economic and a human level. This demands that governments implement strategies to reduce their number and impact. The knowledge of the nature of the phenomenon through the study of time series of accidents
Beatriz Duarte Monedero   +2 more
doaj   +1 more source

Regional Railway Transport in Czech, Austrian and German Decentralised and Regionalised Transport Markets1

open access: yesReview of Economic Perspectives, 2015
The article analyses railway transport markets in three neighbouring Central European countries: the Czech Republic, Austria and Germany (specifically Bavaria and Saxony), with a focus on regional transportation.
Seidenglanz Daniel   +2 more
doaj   +1 more source

Aviation supply and demand in the São Paulo and Rio de Janeiro systems evolution: An exploratory study

open access: yesJournal of Economics and Management, 2022
Aim/purpose – Multiple factors affect a passenger’s origin and destination airport choice. This study explores some of the leading indicators associated with performance in cities with more than one airport.
de Paula Balan Bruno   +3 more
doaj   +1 more source

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