•This research offers guidelines on daylighting design for educational buildings to minimize energy consumption and carbon emissions.•It assesses the usefulness of daylight performance metrics and ...considers sustainability standards for energy modeling in Turkey.•This article highlights the importance of sustainable lighting conditions in many countries' educational buildings.•Optimum energy consumption conditions and calculations that can be evaluated in visual performance in selected countries were examined and evaluated, and appropriate suggestions and procedure stages were developed for improving education buildings in Turkey.
According to the 2021 data from the International Energy Agency, educational buildings had the highest energy consumption after residential and office buildings. The number of schools affiliated with the Republic of Turkey Ministry of National Education (MoNE) is 67,125 and the number of users is over 20 million (preschool, primary school, secondary school), which is increasing daily. Providing adequate lighting and visual comfort conditions increases education quality and is favorable for health. In educational buildings, energy consumption can be saved by changing space usage with different education models, changing/transforming spaces with the requirements of the age, and optimizing space-related design conditions. Educational guidelines published by different institutions and organizations in various countries emphasize the importance of sustainable lighting conditions in educational buildings. In the guideline published by MoNE in 2015, it is not possible to optimize the energy required for lighting with the standardized building type according to different climate zones. Natural lighting conditions need to be investigated in detail with other issues such as space characteristics (size, furnishing, function, window size, etc.), latitude, sunshine duration, climate, direction, orientation, etc. Educational buildings, which have been produced as a uniform project in Turkey in recent years, need to be re-evaluated according to the physical and psychological needs of the users, architecturally flexible uses, building performance, and energy-efficient use according to different climate zones. This article aims to analyzing the daylighting standards in educational buildings and regulations that are applied internationally to define a set of rules that could be applied in Turkey to supplement the local legislation.
In recent years, using the idea of analytic and bi-univalent functions, many ideas have been developed by different well-known authors, but the using Gegenbauer polynomials along with certain ...bi-univalent functions is very rare in the literature. We are essentially motivated by this recent research going on, here in our present investigation, we make use of certain q-derivative operator and Gegenbauer polynomials and define a new subclass of analytic and bi-univalent functions. We then obtain certain coefficient bounds, the Fekete–Szegö inequalities and upper bounds for the second-order Hankel determinant for the defined functions class.
For 0≤η<1, 0≤λ<1, −π/2<γ<π/2, 0≤β≤α, and m∈ℕ∪{0}, a new class Sα,βm(η,γ,λ) of analytic functions defined by means of the differential operator Dα,βm is introduced. Our main object is to provide sharp ...upper bounds for Fekete-Szegö problem in Sα,βm(η,γ,λ). We also find sufficient conditions for a function to be in this class. Some interesting consequences of our results are pointed out.
In the present investigation the authors obtain upper bounds for the second Hankel determinant H2(2) of the classes bi-starlike and bi-convex functions of order β, represented by Sσ*(β) and Kσ(β), ...respectively. In particular, the estimates for the second Hankel determinant H2(2) of bi-starlike and bi-convex functions which are important subclasses of bi-univalent functions are pointed out.
In this paper, we deal with some geometric properties including starlikeness and convexity of order β of Ramanujan-type entire functions which are natural extensions of classical Ramanujan entire ...functions. In addition, we determine some conditions on the parameters such that the Ramanujan-type entire functions belong to the Hardy space and to the class of bounded analytic functions.
Highlights • This was a prospective observational case-control study and 66 women with term PE and 46 gestational age matched healthy pregnant women at gestational age >37 weeks were included. • Most ...of the studies have focused on the functional and structural alterations occured in the left-sided heart. • There is a lack of published data on myocardial structure and function of the right-sided heart in PE. • Although we could not demonstrate right ventricular dysfunction in term PE patients, we demonstrated significant differences in some right ventricular measurements. • PE is not only affecting the left-sided heart but also affecting the right-sided heart.
We introduce and investigate in this paper a new subclass of bi-univalent functions associated with the Gegenbauer polynomials which satisfy subordination conditions defined in a symmetric domain, ...which is the open unit disc. For this new subclass, we obtain estimates for the Taylor–Maclaurin coefficients a2,a3 and the Fekete–Szegö inequality a3−μa22.
In this paper, we introduce and study some new subclasses of analytic functions defined by the combination of Al-Oboudi and Ruscheweyh differential operators, and obtain coefficient estimates and ...Fekete–Szegö inequalities for these new subclasses. The results presented in this paper improve the recent work of Kanas and Darwish (Appl Math Lett 23(7), 777–782, 2010).
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