Güncel Gönderiler: DSpace@Hitit: Hitit University Institutional Repository
Toplam kayıt 6070, listelenen: 4261-4280
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Effect of electrolytic nickel coating on fatigue life of iron based powder metal parts
(2011)Electrolytic coating is one of the methods mainly used to provide corrosion resistance for the powder metal parts. The coatings have strong effects on mechanical properties of coated parts as well as on surface properties. ... -
Experimental performance analysis of sensible heat storage in solar air collector with cherry pits/powder under the natural convection
(Elsevier Ltd, 2020)It is important to enhance the availability of SACs either in cloudy weather or after sunset for space heating and agricultural drying process. In this context, this study aims to determine experimentally thermal performance ... -
Structural, electronic, and electrochemical analyses of sputter-coated Pt and Pt–Co/GCE electrodes with ultra-low metal loadings for PEM fuel cell applications
(Springer Netherlands, 2017)In this study, unsupported platinum and platinum–cobalt ultra-thin catalyst layers with varying metal loadings were prepared by a sequential magnetron sputtering technique. The deposited catalyst layers were characterized ... -
Electrochemical copper (II) sensor based on chitosan covered gold nanoparticles
(Kluwer Academic Publishers, 2014)This study outlines a new sensing platform based on glassy carbon electrodes modified by gold nanoparticles (AuNPs) for the determination of heavy metal. A glassy carbon electrode was modified by chitosan stabilized AuNPs. ... -
Electrochemical corrosion properties of metal alloys used in orthopaedic implants
(2009)This study concerns an investigation of the corrosion behavior of 316 stainless steel, CoCrMo and Ti6Al4V alloys in simulated body conditions (ringer lactate) at 37 °C by the use of Tafel plots, mixed potential and ... -
Comparison of personality beliefs between depressed patients and healthy controls
(W.B. Saunders, 2014)Introduction According to the cognitive model, the common mechanism underlying all psychological disorders is distorted or dysfunctional thoughts that affect mood and behaviors. Dysfunctional thoughts predispose an individual ... -
Acoustic analysis of a liquefied petroleum gas-fired pulse combustor
(2008)Experimental investigation of acoustic characteristics of a Helmholtz type liquefied petroleum gas-fired pulse combustor is presented. In the experiments, the length of the tail pipe was changed from 1.9 m to 1.3 m by 10 ... -
Atom-economical synthesis of complex heterocycles with N-O moiety
(Wiley Blackwell, 2015)A concise and facile method for the synthesis of heterocyclic compounds with N-O tether was introduced. The two important steps of the synthesis are a Mitsunobu reaction and C-H activation. The Mitsunobu protocol allows ... -
Preferences and related factors for postpartum contraception in pregnant women
(Research and Clinical Center for Infertitlity, 2013)Background: The postpartum period is a time of transition for a pregnant woman and her new family. In this period many pregnant women are in search about the family planning methods. But contraceptive options differ depending ... -
Relationship between vascular cell adhesion molecule-1 and morbidly adherent placenta
(Elsevier Masson SAS, 2018)Introduction: Morbidly adherent placenta is a clinical condition of which prevalance is steadily increasing. It is described as the invasion of the placenta into the uterine wall through the myometrium and beyond. Vascular ... -
Effect of hyper-plasticizer additive rates on the properties of polypropylene fibre tempered concretes
(Springer, 2018)In this study, effect of different rates of hyper-plasticizer additives on the physical and mechanical properties of polypropylene fibre tempered concretes was investigated. The factors of slump and compaction, which are ... -
Use of waste concrete in cement production
(Springer, 2018)Use of waste concrete in tempered cement production was examined in this study. Waste concretes were used in limestone-tempered cement production. In tempered cement production, 5, 10, 15, 20 and 28% milled waste concrete ... -
Physical activity measurement by SWA in employees: Weekdays and weekend
(PPHU Projack, 2017)Introduction: The purpose of this study was to identify the levels of physical activity level during the weekdays and weekend both female and male employees. Method: A total of 58 volunteer employees participated in this ... -
Diagnostic impacts of serum Ca-125 levels, pap smear evaluation, and endometrial sampling in women with endometrial clear cell carcinoma
(S. Karger AG, 2016)Background: Endometrial clear cell carcinoma (ECCC) is a rare variant of endometrial cancer with an unfavorable prognosis. The aim of this study was to determine the relationships, if any, between preoperative serum cancer ... -
Utility of biochemical markers and RVD/LVD ratio in acute pulmonary embolism risk classification in Emergency Department
(2017)OBJECTIVE: We aimed to determine the efficacy of troponin I, D-dimer, and lactate levels and right ventricular diameter (RVD)/left ventricular diameter (LVD) ratio on pulmonary computed tomography angiography (PCTA) in the ... -
Diagnostic value of copeptin in acute myocardial infarction
(2017)PATIENTS AND METHODS: A total of 160 cases were enrolled in the study. All were over 18 years of age, and consisted of 54 non-ST elevation MI (NSTEMI), 54 ST segment elevation MI (STEMI), and 52 healthy subjects (controls). ... -
The relation of the obstruction site on muller's maneuver with BMI, neck circumference and PSG findings in OSAS
(Springer, 2014)We investigated relation of the site of obstruction detected on Muller maneuver (MM) with polysomnography (PSG) and physical examination findings. Data of 703 patients admitted to Ankara Numune Education and Research ... -
Decimeter-level positioning in dynamic applications with a single GPS receiver
(Kluwer Academic Publishers, 2014)Although the ongoing GPS modernization studies provide better autonomous positioning accuracy (i.e. a few meters), this accuracy level is not enough for many surveying applications. Depending on the developments in ... -
Teachers’ first-year experience with chromebook laptops and their attitudes towards technology integration
(Springer Netherlands, 2016)Because mobile technology has become so obvious in a child’s life, use of it for teaching and learning has become a necessity. This study investigates use of Chromebook laptops in 6–12 grade classrooms in relation to ... -
On ergonomic perception
(Springer Verlag, 2018)Ergonomics has developed as an application of knowledge accumulation in very different qualities that can improve the efficiency of human performance in different directions. Ergonomics which is also related to different ...