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Toplam kayıt 43, listelenen: 31-40
Dual Cross-Linked Polymethacrylic Acid Hydrogels with Tunable Mechanical Properties and Shape Memory Behavior
(Wiley-V C H Verlag Gmbh, 2021)
Herein, a series of poly(methacrylic acid) hydrogels are prepared via bulk polymerization of methacrylic acid (MAAc) and grafting of Triton X-100 (TX-100). One-pot and extremely simple chemistry consist of only mixing and ...
Disaster and emergency preparedness in Istanbul museums
(Routledge Journals, Taylor & Francis Ltd, 2021)
Istanbul is a high-risk city in terms of disasters, as well as having museums hosting many cultural heritage artifacts. The purpose of this study is to analyze the preparation level of museums in Istanbul for disaster and ...
Impact of heating season on the soil pollution in Kirklareli province of Turkey
(Springer, 2021)
This study, conducted in Kirklareli city centre, aims to analyse heavy metal pollution in soil due to heating season (HS). For this purpose, 86 soil samples were taken from the identified locations with a depth of 0-10 cm ...
The effect of collector parameters on nanofiber yarns produced by electro yarn spinning machine with conical collector
(Taylor & Francis Ltd, 2021)
In this work, electrospun yarns were produced by a nanofiber yarn spinning machine with a conical collector. In the first part, two different polymers (PAN and PVDF-HFP) were used in nanofiber yarn spinning with two different ...
Investigation of tribological behavior of 20NiCrBSi-WC12Co coated brake disc by HVOF method
(Iop Publishing Ltd, 2020)
In braking systems, which consist of dry sliding lining against a pearlitic cast-iron disc, disc wear has a significant impact on the overall wear rate. In this work, dynamometer tests were conducted to find out the friction ...
QUALITATIVE BEHAVIOURS OF A SYSTEM OF NONLINEAR DIFFERENCE EQUATIONS
(Editura Bibliotheca-Bibliotheca Publ House, 2021)
The paper aims to study the dynamics of a system of nonlinear difference equations x(n+1) = x(n-1)y(n) + A, y(n+1) = y(n-1)x(n) + A where is real number. We especially investigate the stability of equilibrium points, ...
EVALUATION OF MECHANICAL CHARACTERISTICS OF THE INTERLOCKING CONCRETE PAVES PRODUCED FLY ASH
(Kırklareli Üniversitesi, 2020)
Fly ashes are used aspozzolanic admixtures or filler materials in concrete production. Increasingthe use of fly ash is important both in terms of economy and environmentalpollution. The interlocking concrete paves are ...
Global dynamics of a higher order difference equation with a quadratic term
(Springer Heidelberg, 2021)
In this paper, we investigate the dynamics of the following higher order difference equation x(n+1) = A + B x(n)/x(n-m)(2) with A, B and initial conditions are positive numbers, and m is an element of {2, 3, ...}. Especially ...
On bicomplex generalized Tetranacci quaternions
(Bulgarian Acad Science, 2020)
In this paper, we introduce the bicomplex generalized Tetranacci quaternions. Furthermore, we present some properties of these quaternions and derive relationships between them.
The effects of STEM activities on the problem-solving skills of 6-year-old preschool children
(Routledge Journals, Taylor & Francis Ltd, 2021)
In this study, the effects of STEM activities on the problem-solving skills of preschool children were investigated. A two-group (study: n = 18 and control: n = 18) pre-test/post-test/retention test experimental design was ...