Güncel Gönderiler: Meslek Yüksekokulları
Toplam kayıt 474, listelenen: 421-440
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Synthesis and characterisation of some new hybrid molecules containing thiophene, triazole and coumarin rings under microwave conditions
(Sage Publications Ltd, 2018)In this work, a new series of N'-{[4-amino-5-oxo-3-(thiophen-2-yl)-4,5-dihydro-1H-1,2,4-triazol-1-yl]acetyl}-2-oxo-2H-1-benzopyran-3-carbohydrazides (thiophene-triazole-coumarin hybrid molecules) was synthesised from the ... -
Oxime derivative unsymmetrical azine, its Ni(II), Cu(II) and Zn(II) complexes: Synthesis, spectroscopy and catecholase activity
(Wiley-Hindawi, 2018)1-[(Z)-{(2E)-[(3E)-3-(hydroxyimino)butan-lidene]hydrazinylidene}methyl]naphthalen -2-ol, H2L (3) was synthesized by the agents of 2-hydroxy-1-naphtaldehyde, 2,3-butanedione monoxime and hydrazine in two steps. the structures ... -
Contribution to the pollen morphology of Tragopogon (Asteraceae) in Turkey
(Magnolia Press, 2018)The pollen morphology of 25 Tragopogon L. taxa (including four subspecies and four varieties) distributed in Turkey was studied under light and scanning electron microscopy. It was observed that pollen grains of the examined ... -
New ferrocenyl naphthoquinone fused crown ether chemosensors: Highly selective, kinetically and regio controlled colorimetric, beryllium ion recognition
(Elsevier Science Sa, 2018)New organometallic chemosensors which are based on triad molecules, ferrocenyl naphthoquinone linearly/angularly fused crown ethers (Fc-cnq-1a and Fc-cnq-1b) bearing ferrocene, quinone, and crown ether functional groups ... -
Effects of gadolinium-based MRI contrast agents on liver tissue
(Wiley, 2018)BackgroundPurposeMRI with contrast is often used clinically. However, recent studies have reported a high accumulation of gadolinium-based contrast agents (GBCAs) in kidney, liver, and spleen tissues in several mouse models. ... -
Mechanical properties of friction stir welded St 37 and St 44 steel joints
(Carl Hanser Verlag, 2018)In this study, the weldability of lower strength St 37 grade steel plate with a higher strength steel plate (i. e., St 44) using the friction stir welding technique has been studied. St 37 grade steel sheets are widely ... -
Microstructure and mechanical properties of friction-stir welded St52 steel joints
(Springer, 2018)The aim of this work is to investigate the mechanical properties and microstructures of friction-stir welded (FSWed) St52 structural steel joints. in this study, St52 steel plates with a thickness of 4 mm were butt-welded ... -
An improved sensorless DTC-SVM for three-level inverter-fed permanent magnet synchronous motor drive
(Springer, 2018)A speed-sensorless control strategy is investigated in a wide speed range based on extended Kalman filter (EKF) and direct torque control with space vector modulation (DTC-SVM) for three-level cascaded H-bridge inverter-fed ... -
Synthesis of some novel quinazolin-4(3H)-one hybrid molecules as potent urease inhibitors
(Wiley-V C H Verlag Gmbh, 2018)A new series of quinazolinone hybrid molecules containing coumarin, furan, 1,2,4-triazole and 1,2,4-thiadiazole rings was designed, synthesized, and screened for their urease inhibition activities. All newly synthesized ... -
Effect of ethyl acetate extract of usnea longissima on esophagogastric adenocarcinoma in rats
(Acta Cirurgica Brasileira, 2019)Purpose: To investigate the effects of the EtOAc extract of U. longissima which is uninvestigated previously on esophagogastric cancer induced in rats with N-methyl-N-nitro-N-nitrosoguanidin (MNNG). Methods: the anticancer ... -
Secondary cancer risk after whole-breast radiation therapy: field-in-field versus intensity modulated radiation therapy versus volumetric modulated arc therapy
(British Inst Radiology, 2019)Objective: in this study, we used the concept of organ-equivalent dose (OED) to evaluate the excess absolute risk (EAR) for secondary cancer in various organs after radiation treatment for breast cancer. Methods: Using CT ... -
Prenatal effects of a 1,800-MHz electromagnetic field on rat livers
(Karger, 2019)The use of devices, including mobile phones, generating electromagnetic fields (EMF) is widespread and is progressively increasing. It has also been shown that EMF may have detrimental effects. This is the first study to ... -
The protective effects of astaxanthin against cisplatin-induced retinal toxicity
(Taylor & Francis Ltd, 2019)Purpose: This study investigated the toxic effects of an antineoplastic agent, cisplatin (CIS), on retinal cells and the potential capacity of astaxanthin (ASTA) to elicit a future therapeutic protocol in CIS-induced retinal ... -
Investigation of mechanical and microstructural properties of friction stir welded dual phase (DP) steel
(Iop Publishing Ltd, 2019)The application of dual phase (DP) steels has been increasing significantly in the automotive industry because of their high strength as well as good ductility, thus, cold formability. These steels are generally joined ... -
Investigation of microstructure and mechanical properties of friction stir welded dissimilar St37/St52 joints
(Iop Publishing Ltd, 2019)Although friction stir welding (FSW) has widely been applied to aluminum alloys in several industries over the past three decades, it is not yet used in industry for joining of steels. the aim of this study is to characterize ... -
Tunable electronic properties of van der Waals heterostructures composed of stanene adsorbed on two-dimensional, graphene-like nitrides
(Amer Inst Physics, 2019)We investigated the structural stability and electronic properties of stanene/graphene-like nitride (stanene/XN, X = Al, B, and Ga) heterostructures using first-principles calculations. the results reveal that stanene ... -
Microstructure, mechanical properties and formability of friction stir welded dissimilar materials of IF-steel and 6061 Al alloy
(Springer, 2019)AA 6061 alloy and interstitial-free (IF) steel plates were joined by the friction stir welding (FSW) method, and the microstructure, mechanical properties, and biaxial stretch formability of the friction stir welded (FSWed) ... -
Performance evaluation of multiple adaptive regression splines, teaching-learning based optimization and conventional regression techniques in predicting mechanical properties of impregnated wood
(Springer, 2019)Understanding the mechanical behaviour of impregnated wood is crucial in making a preliminary decision on the usability of such woods for structural purposes. in this paper, by considering concentration (1, 3 and 5%), ... -
Artifacts in cranial MRI caused by extracranial foreign bodies and analysis of these foreign bodies
(Wolters Kluwer Medknow Publications, 2019)Purpose: the purpose of our study was to conduct a chemical analysis of extracranial foreign bodies (FBs) causing artifacts in cranial magnetic resonance imaging (MRI) and to investigate the association between chemical ... -
Health risk perspectives of metal(loid) exposure via consumption of striped venus clam (Chamelea gallina Linnaeus, 1758)
(Taylor & Francis Inc, 2019)The metal(loid)s are mainly transported to the Black Sea via rivers and affect the coastal area where fisheries are intensive. Chamelea gallina (striped venus clam) is the most abundant mollusk species in the Black Sea and ...
