Browsing Fakülteler by Language "eng"
Now showing items 81-100 of 198
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Electrocatalysis of Ni-promoted Cd coated graphite toward methanol oxidation in alkaline medium
(ELSEVİER, 2012)The nickel–cadmium (Ni-promoted Cd) catalyst for using direct methanol fuel cell (DMFC) applications is electrochemically deposited on a graphite substrate. The activity of methanol oxidation is assessed by recording ... -
Electrocatalytic oxidation of methanol on PtNiZn electrode in alkaline medium
(SPRİNGER, 2011)In this study, a platinum electrode was coated with NiZn layer (Pt/NiZn) in a nickel zinc bath by electrodeposition for use as anode material for methanol electrooxidation in alkaline solution. The electrode prepared was ... -
Electrocatalytic oxidation of methanol on Ru deposited NiZn catalystat graphite in alkaline medium
(ELSEVİER, 2013)The methanol oxidation on C/NiZn-Ru electrode in a 1.00 M KOH and 1.00 M KOH + 1.00 M methanolsolutions at different scan rates and temperatures was studied by the cyclic voltammetry (CV), electro-chemical impedance ... -
Electrochemical performance of lithium molybdenum composite catalyst in oxygen reduction reaction
(ELSEVİER, 2015)A gel/LiMo catalyst was prepared as a cathode material via the solegel process and applied calcination at different times. The influence of calcination times, properties and the electrochemical performance of the catalyst ... -
Energy and exergy analysis of a combined refrigeration and waste heat driven organic rankine cycle System, thermal Science
(VINCA INST NUCLEAR SCI., 2017)Energy and exergy analysis of a combined refrigeration and waste heat driven organic Rankine cycle system were studied theoretically in this paper. In order to complete refrigeration process, the obtained kinetic energy ... -
Energy and exergy analysis of an organic Rankine-Brayton combined cycle
(GAZI UNIV, 2018)In this study, thermodynamic analysis of reheat and intercooled Brayton cycle combined with organic Rankine cycle (ORC) using waste heat from intercooler in Brayton cycle as heat source is presented. The effects of different ... -
Energy and Exergy Analysis of LiBr-aq and LiCl-aq Liquid Desiccant Dehumidification System
(UNIV NORTH., 2020)In this study, energy and exergy analysis of experimental results obtained from a dehumidification system using LiBr-aq (lithium bromide-water) and LiCl-aq (lithium chloridewater) as desiccant was made. In dehumidifier and ... -
Enhanced electrocatalytic efficiency of C/MWNTs for methanol oxidation using Ni deposited on MWNTs
(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2015)The power density of direct methanol fuel cells (DMFCs) can be changed by using different anode materials. Especially porous materials are preferred for the anode. In the present study, multiwall carbon nanotubes were first ... -
Entropy Generation for Nonisothermal Fluid Flow: Variable Thermal Conductivity and Viscosity Case
(HINDAWI PUBLISHING CORPORATION, 2013)This paper investigates the entropy generation of a nonisothermal, incompressible Newtonian fluid flowing under the effect of a constant pressure gradient in plane Poiseuille flow. The effects of variable viscosity and ... -
Essential oil constituents of tanacetum cilicicum: Antimicrobial and phytotoxic activities
(WILEY-HINDAWI, 2017)Aerial parts of Tanacetum cilicicum were hydrodistillated for 3 h using Clevenger. Essential oil (EO) yield was 0.4% (v/w). According to the GC/MS analyses, EO of T. cilicicum consisted of monoterpenes [alpha-pinene (2.95 ... -
Estimating dam reservoir level fluctuations using data-driven techniques
(HARD, 2019)Estimating dam reservoir level is very important in terms of the operation of a dam, the safety of transport in the river, the design of hydraulic structures, and determining pollution, the salinity of the river flow ... -
Estimation of monthly global solar radiation in the eastern Mediterranean region in Turkey by using artificial neural networks
(EDP SCIENCES., 2016)In this study, an artificial neural network (ANN) model was used to estimate monthly average global solar radiation on a horizontal surface for selected 5 locations in Mediterranean region for period of 18 years (1993-2010). ... -
Evaluation of structural properties of existing Turkish RC building stock
(IJSTC, 2019)The huge number of structures in which the major portion of the population resides will be seriously damaged if there is an earthquake on a medium or a large scale. For this reason, it has become a necessity to determine ... -
Exercise behaviors and insomnia levels of individuals with chronic diseases
(CUKUROVA UNIV,, 2019)Purpose: This study aimed to review the exercise behaviors and insomnia levels of individuals with chronic diseases. Materials and Methods: This descriptive study was conducted with 100 participants. The exercise behaviors ... -
Experimental and quantum chemical studies on corrosion inhibition effect of 5,5 diphenyl 2-thiohydantoin on mild steel in HCl solution
(ELSEVİER, 2016)The inhibition efficiency of 5,5 diphenyl 2-thiohydantoin (DPTH) against mild steel (MS) corrosion has been investigated in 0.1 M HCl solution by using electrochemical techniques and quantum chemical calculations. The ... -
Experimental detemination of convective heat transfer coefficient during open sun and green- house drying of apple slices
(EDP SCIENCES., 2016)A small scale greenhouse type dryer was designed and tested. Convective heat transfer coefficient of apple slices was identified under open sun at natural convection mode and in greenhouse drying at natural and forced ... -
Experimental investigation of flow characteristics of corrugated channel flowusing PIV
(YILDIZ TECHNICAL UNIV, 2016)The aim of the study is to determine the flow characteristics of corrugated duct. The whole study has been conducted for Reynolds numbers, Re=4000 and 6000. The corrugated duct geometry was designed for aspect ratios, ... -
Fe-Cu coated nickel mesh usage as cathode catalyst for hydrogen evolution reaction
(ELSEVİER, 2018)Nickel mesh electrodes were used as the working electrode. Iron and copper were electrochemically deposited on the nickel mesh in different amounts. When electrochemical coatings had been carried out, different currents ... -
First and second law evaluation of combined brayton-organic rankine power cycle
(YILDIZ TECHNICAL UNIV., 2020)In the present work, we have conducted thermodynamic analysis of an organic Rankine cycle (ORC) using waste heat from intercooler and regenerator in Brayton cycle with intercooling, reheating, and regeneration (BCIRR). ... -
First report on the volatile composition of tricholoma anatolicum in comparison with tricholoma caligatum
(ACG PUBLICATIONS, 2019)Tricholoma anatolicum collected from Turkey is consumed by public and exported to Japan every year. It was previously identified as Tricholoma caligatum until it was recognized as a new species. In the existing literature, ...