Makine Mühendisliği Bölümü Koleksiyonu: Recent submissions
Now showing items 1-20 of 35
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A Compressor model to determine cooling cycle efficiencies and performances without or with internal heat exchanger for specific refrigerant
(2023)Today, the importance of refrigeration has increased due to the shortage of food, food storage, health, and industrial cooling. Global warming is the most important environmental problem that the world has faced recently. ... -
Cooling performance prediction of a metal foam internal heat exchanger: An artificial neural network approach
(2023)Although HFC refrigerants have high global warming potential (GWP) values, they are preferred due to their satisfactory cooling performance and A1 fire protection classification. If possible, alternatives of HFC-type ... -
Pull-out strength of screws in long bones at different insertion angles: finite element analysis and experimental investigations
(De Gruyter, 2024)Different types of plates are available to allow insertion of screws for internal fixation of long bone fractures. The aim of the study was to determine the effect of the insertion of screws at different angles on a long ... -
Morphological, microstructural and photocatalytic characterization of undoped and Ni, Co doped Fe2O3 particles synthesized by sonochemical method
(Scientific & Technical Research Council Turkey-TUBITAK, 2022)In this study, an abundant and eco-friendly photocatalytic material, Fe2O3 particles were synthesized by sonochemical method. Morphological and microstructural investigations of synthesized undoped and Ni, Co-doped Fe2O3 ... -
Investigation of the effects of additives on the electrical and magnetic properties of polyester resin
(Istanbul University Cerrahpaşa, 2022)Polymers are widely used as insulation materials in the electrical industry because their existing electrical and mechanical properties can be altered by adding different types of additives. Successful prediction of the ... -
Characterization of CP-Titanium produced via binder jetting and conventional powder metallurgy
(CSIC-Consejo Superior Investigaciones Cientificas, 2022)Titanium (Ti) and its alloys are among the most commonly used materials in biomedical applications. In addition to being biocompatible, these materials have notable low density and high corrosion resistance and mechanical ... -
Additive manufacturing technologies and its future in industrial applications
(Universiti Tun Hussein Onn Malaysia, 2021)Additive manufacturing technologies have developed rapidly in the last ten years and have become a technology with significant advantages compared to traditional manufacturing. Depending on discovering new materials and ... -
Üretim parametrelerinin hidroksiapatit tozlarının özellikleri ve kaplama kalitesi üzerindeki etkilerinin incelenmesi
(2019)Biyomedikal uygulamalarda yaygın olarak kullanılan metal implantlar, çevre dokularla hızlı ve sağlıklı entegrasyonun sağlanması amacıyla, biyouyumluluğu yüksek malzemeler ile kaplanmaktadır. Kaplama malzemeleri arasında, ... -
Investigation of flow patterns and heat transfer in gas-driven thin liquid films
(International Symposium on Turbulence and Shear Flow Phenomena, TSFP, 2019)Gas-driven liquid films are a promising candidate for heat up and evaporation of liquids in an efficient way. Many industrial fields benefit of this type of treatment, because of an intensive heat transfer, such as upcoming ... -
Experimental and computational investigation of disc brake squeal
(Institute of Noise Control Engineering, 2017)In this paper, the high frequency noise problem brake squeal observed in automotive disc brake systems is experimentally and computationally investigated. Firstly, modal testing on the components of the brake system (brake ... -
Effect of coating method on the surface characteristics of niti shape memory alloy
(Trans Tech Publications Ltd, 2020)Metallic materials including stainless steel, cobalt-chromium alloys, titanium and its alloys, and nickel-titanium (NiTi) shape memory alloys have been used in biomedical applications since the 1940s due to their favorable ... -
An experimental investigation into frost accumulation over vertical finned and unfinned surfaces during impinging air flow
(American Society of Mechanical Engineers, 2020)Frost formation on evaporators negatively affects the cooling performance of refrigerators. It increases the thermal resistance between the refrigerant and air leading to a reduction in the system cooling capacity. In this ... -
An experimental study on the heat transfer and wettability characteristics of micro-structured surfaces during water vapor condensation under different pressure conditions
(Elsevier Ltd, 2021)In this study, condensation characteristics of water vapor on micro-structured surfaces at different pressures and subcooling temperature has been investigated experimentally. This work represents a basic study in order ... -
Rapid heating and cooling chamber for a photonics junction measurement system
(IEEE Computer Society, 2020)Since many industrial applications require heat treatment processes or validation tests under certain ambient temperatures, thermal design is a key issue to be considered in order to ensure fast heating and cooling ... -
Effects of alumina (Al2O3) addition on the cell structure and mechanical properties of 6061 foams
(Cambridge Univ Press, 2013)In this study, a powder blend representing 6061 Al-alloy was first mixed with Al2O3 ceramic particles and then foamed by using the powder compact melting method. 6061-Al2O3 foams and control specimens 6061 foams (without ... -
Preparation and characterization of porous hydroxyapatite pellets: effects of calcination and sintering on the porous structure and mechanical properties
(Sage Publications Ltd, 2016)In this study, porous hydroxyapatite structures were produced by using urea particles of 600-850 mu m size. Samples with two different urea composition (25 and 50 wt%) were prepared along with samples without any urea ... -
Mechanical characterization of B4C reinforced aluminum matrix composites produced by squeeze casting
(Cambridge Univ Press, 2017)Boron carbide (B4C) ceramic particles were used as reinforcement material to produce aluminum (Al) matrix composites by squeeze casting method. Four different B4C contents as 0, 3, 5, and 10 wt%, and three different squeeze ... -
Calibration-free extraction of constitutive parameters of magnetically coupled anisotropic metamaterials using waveguide measurements
(Amer Inst Physics, 2017)A calibration-free method for extraction of electromagnetic properties of magnetically coupled anisotropic biaxial metamaterial (MM) slabs from waveguide measurements is proposed. It relies on three measurement steps (thru, ... -
Comparison of deep drawability of AA5754-H22 and AA6061-T6 aluminum alloys for automotive applications
(Carl Hanser Verlag, 2017)Being one of the most commonly applied sheet metal forming processes in automotive industry, deep drawing technologies are challenged by the concerns of global warming for higher fuel economy requirements in the recent ... -
Core-shell PVA/gelatin nanofibrous scaffolds using co-solvent, aqueous electrospinning: toward a green approach
(Wiley, 2018)Electrospinning (ES) of gelatin often requires cytotoxic organic solvents or acidic environments, which deteriorate cell recognition sites. In this study, aqueous, non-toxic, co-solvent ES was performed to obtain core-shell ...
