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Toplam kayıt 1167, listelenen: 71-80
The Factors Determining the Profitability of Low Cost Airlines
(Natl Inst Statistics, 2020)
Airline have developed a set of business models to increase their market share and gain competitive advantage against each other. One of the business models that have recently captured attention is the low-cost business ...
Mechanical and electromagnetic performance of cement based composites containing different replacement levels of ground granulated blast furnace slag, fly ash, silica fume and rice husk ash
(Elsevier, 2020)
In this study, cement additives were replaced with cement in mortar mixtures by mass. Mortar specimens were prepared with different additives and dosages which were mechanically and electromagnetically tested. According ...
Wheat Yield Estimation from NDVI and Regional Climate Models in Latvia
(MDPI, 2020)
Wheat yield variability will increase in the future due to the projected increase in extreme weather events and long-term climate change effects. Currently, regional agricultural statistics are used to monitor wheat yield. ...
Efficient Direct-Methanol Fuel Cell Based on Graphene Quantum Dots/Multi-walled Carbon Nanotubes Composite
(Wiley, 2020)
Direct-methanol fuel cells are proton-exchange fuel cell in which methanol is used as the fuel. The important advantage of these fuel cells is the simplicity of transport and storage of methanol. In this study, methanol ...
Properties and Corrosion Resistance of Borided AISI H11 Tool Steel
(Asme, 2020)
In this study, the effect of different boriding parameters on some mechanical properties and corrosion resistance of AISI H11 steel, which is extensively used in hot and cold processing applications, was investigated. The ...
Tunable left-hand characteristics in multi-nested square-split-ring enabled metamaterials
(Central South University of Technology, 2020)
Left-hand materials have drawn increasing attention from many disciplines and found widespread application, especially in microwave engineering. A sandwiched metamaterial consisting of multi-nested square-split-ring ...
Enhanced superconducting properties of multi-wall carbon nanotubes added YBCO-123 Superconducting System
(Elsevier, 2020)
We investigated multi-wall carbon nanotubes (MWCNT's) adding in Y1Ba2Cu3Ox high temperature superconductor system. We used solid-state method for sample preparation and 0.0 < x < 5.0 wt% MWCNT's were added to the main ...
Impact of weather on COVID-19 pandemic in Turkey
(Elsevier, 2020)
The coronavirus pandemic, which has numerous global implications, has led people to believe that nothing will be the same as before. The present day is dominated by studies on determining the factors that affect, taking ...
Improvement of energy harvesting capability in grid-connected photovoltaic micro-inverters
(Taylor & Francis, 2020)
In this paper, a multi-stage micro-inverter system depending on a dual neutral point clamped (D-NPC) inverter is developed for low power photovoltaic (PV) applications. The primary objectives of this study are determined ...
Bandwidth Improvement in Bow-Tie Microstrip Antennas: The Effect of Substrate Type and Design Dimensions
(Mdpi, 2020)
In this work, the impact of substrate type and design dimensions on bow-tie microstrip antenna performance and bandwidth improvement is presented both numerically and experimentally at 4-8 GHz. The finite integration ...