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Toplam kayıt 78, listelenen: 21-30
The effects of boro-tempering heat treatment on microstructural properties of ductile iron
(Elsevier, March 2011)
In this study, the effects of boro-tempering heat treatment on microstructural properties of ductile iron were investigated. Test samples with dimensions of 10 × 10 × 55 mm were boronized at 900 °C for 1, 3 and 5 h and ...
Corrosion inhibition of st37 steel in geothermal fluid by quercus robur and pomegranate peels extracts
(Pleiades Publishing, Ltd, 2015)
Plant extracts have become important as an environmentally acceptable, readily available and renewable source of wide range of inhibitors. Tannins, a class of natural, non toxic and biodegradable polyphenolic compounds, ...
Comparison of radon concentrations in soil gas and indoor environment of Afyonkarahisar province
(16 April 2)
It is well known that radon is the main source of natural radiation exposure to the population. Indoor radon concentrations in an area are affected by ascending radon migration following the convection of groundwater and ...
Some Tauberian theorems for four-dimensional Euler and Borel summability
(2015)
The four-dimensional summability methods of Euler and Borel are studied as mappings from absolutely convergent double sequences into themselves. Also some Tauberian results are proved.
Investigation of the diffusion kinetics of borided stainless steels
(Springer, December 2)
In this study, the kinetics of borides formed on AISI 420, AISI 304 and AISI 304L stainless steels was investigated. Boronizing treatment was carried out using Ekabor-II powders at the processing temperatures of 1123, 1173 ...
Experimental and statistical evaluation of cutting methods in relation to specific energy and rock properties
(Springer, 2013)
In a processing plant, natural stone can be cut by methods such as circular sawing (CS), frame sawing (FS), water jet cutting (WJC) and abrasive water jet cutting (AWJC). The efficiency of cutting systems can be compared ...
Investigation of wear and adhesion behaviors of borided steels
(Springer, 2016)
In this study, AISI P20, H13 and D2 steels were pack borided at 900 and 950 °C for retention times of 2, 4 and 6 h. The boride layer thickness values changed depending on the chemical composition of the steels. The hardness ...
Investigation of tribological behaviour of plasma paste boronized of AISI 8620, 52100 and 440C steels
(Niscair, 2011)
In the present study, AISI 8620, 52100 and 440C steels were plasma paste boronized (PPB) by using 100% borax paste. PPB process was carried out in a dc plasma system at temperature of 700 and 800 °C for 3 and 5 h in a gas ...
Methanol oxidation on Aluminium-Copper-Silicon alloys coated with polyprrole
(Pleiades Publishing, Ltd, 2012)
Methanol oxidation on the aluminum copper silicon alloys which are coated with polyprrole were investigated in 1 N H2SO4 by using electrochemical method. For this purpose, first the current density potential curve of ...
The effects of 3D multi-user virtual environments on freshmen university students' conceptual and spatial learning and presence in departmental orientation
(Elsevier, 16.03.2016)
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Outline
Highlights
Abstract
Keywords
1. Introduction
2. Theoretical framework and relevant literature
3. Methodology
4. Findings
5. Discussion
6. Conclusion and future work
Ackno ...