Ara
Toplam kayıt 65, listelenen: 51-60
The in situ natural radionuclide (U-238,Th-232 and(40)K) concentrations in Gumuhane granitoids: implications for radiological hazard levels of Gumuhane city, northeast Turkey
(Springer, 2019)
We have carried out 48 in situ measurements on radioactivities of U-238, Th-232 and K-40 isotopes at the Gumuhane granitoid plutons employing gamma-ray spectrometer with a NaI(Tl) scintillation detector. The radionuclide ...
Estimating the number of clusters in a dataset via consensus clustering
(Pergamon-Elsevier Science Ltd, 2019)
In unsupervised learning, the problem of finding the appropriate number of clusters-usually notated as k- is very challenging. Its importance lies in the fact that k is a vital hyperparameter for the most clustering ...
Water soluble chitosan-caffeic acid conjugates as a dual functional polymeric surfactant
(Elsevier Science Bv, 2019)
A water soluble chitosan-caffeic acid conjugate (C-CAC) was prepared by chemical modification of chitosan using activated caffeoyl with dimethyl aminopyridine as a catalyst. The C-CAC was characterized using UV-visible ...
Jurassic acidic magmatism in a back-arc setting, eastern Sakarya Zone, Turkey: Geochemical constraints and an evolutionary model
(Elsevier, 2019)
The Early Jurassic in the Sakarya Zone, Turkey, was dominated by basic magmatism. The products of this magmatic episode are found as basaltic lavas and pyroclastic rocks in the Senkoy Formation, which was deposited in an ...
Natural Convection in an Enclosure with a Pair of Discrete Heat Sources
(Amer Inst Aeronautics Astronautics, 2019)
An experimental and numerical study is carried out to investigate natural convection cooling characteristics of discrete heat sources in a rectangular enclosure. One of the sidewalls of the enclosure is heated by a pair ...
TLD characteristic of glass, feldspathic and lithium disilicate ceramics
(Wiley, 2019)
Thermoluminescence (TL) emission of dental ceramics could be potentially used for retrospective dosimetry purposes as this allows a quick and reliable dose assessment in case of nuclear accident or bad use of a nuclear ...
Effects of zinc content on strength and wear performance of Al-12Si-3Cu based alloy
(Elsevier, 2019)
The effects of Zn content on strength and wear performance of Al-12Si-3Cu alloy synthesized by gravity casting were systematically investigated. The microstructure and mechanical properties of the alloys were evaluated ...
An Improved 0.8 V-OC Model Based GMPPT Technique for Module Level Photovoltaic Power Optimizers
(IEEE-Inst Electrical Electronics Engineers Inc, 2019)
Photovoltaic modules may experience some mismatching conditions that affect their available power capacity, causing inefficient maximum power point tracking (MPPT). Furthermore, their power-voltage (P-V) characteristic ...
Detecting interaction/complexity within crowd movements using braid entropy
(Zhejiang Univ, 2019)
The segmentation of moving and non-moving regions in an image within the field of crowd analysis is a crucial process in terms of understanding crowd behavior. In many studies, similar movements were segmented according ...
A numerical investigation of static resistance of welded planar steel tubular - joints under in-plane and out-of-plane bending at elevated temperatures
(Elsevier Sci Ltd, 2019)
This study presents the results of a numerical investigation on static resistance of welded planar steel tubular joints under in-plane and out-of-plane bending moments at elevated temperatures. The numerical simulations ...