Ara
Toplam kayıt 37, listelenen: 31-37
The role of geothermal energy in sustainable development of Turkey
(2012)
Energy can strongly act a key role in socio-economical development of Turkey. Turkey's energy needs are always increasing because Turkey has a rapidly growing economy and population. Although Turkey has numerous renewable ...
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 ...
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 ...
Dynamics of a Second-order System of Nonlinear Difference Equations
(Semnan Univ, 2020)
In this paper, we investigate the equilibrium points, stability of two equilibrium points, convergences of negative equilibrium point, periodic solutions, and existence of bounded or unbounded solutions of a system of ...
Dynamical analysis of a non-linear difference equation
(Eudoxus Press, LLC, 2019)
In this article, we investigate the dynamics of the solutions of the following non-linear difference equation xn+1 = xn-2xn-3 - 1; n ? ?0 with arbitrary initial conditions x-2; x-1; x0. Besides, we have studied peri- odic ...
Analysis of polyacrylonitrile nanofiber yarn formation in electrospinning by using a conical collector and two oppositely charged nozzles
(Taylor & Francis Ltd, 2021)
Nanofiber production by electrospinning has become a common production method as it is an easy and flexible system producing nanofibrous webs. However, direct spinning of nanofibers into a yarn would lead to conversion of ...
Social support and postpartum depression in low-socioeconomic level postpartum women in Eastern Turkey
(Springer Basel Ag, 2010)
The aim of this article was to determine risk factors for postpartum depression in low-socioeconomic level women during the first postpartum year and to determine the relationship between postpartum depression symptoms and ...