Aksaray Üniversitesi Kurumsal Akademik Arşivi
DSpace@Aksaray, Aksaray Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Recent advances in biosensor based phthalate analysis
(Nova Science Publishers, Inc., 2022) Yılmaz, Erkut; Ahbab, Müfide Aydoğan; Aydın, Fatma Gülruy; Türkoğlu, Emir Alper
Phthalates are found in dye solvents, glues, cosmetics, personal care products, detergents and a variety of other products in addition to their use as plasticizers. For this reason, phthalates are called as "the everywhere chemical. " Despite their wide usage, people are becoming more concerned about phthalates with the better understanding of their effects on organisms and the environment. Many regulatory agencies classify phthalates as priority pollutants and restrict or prohibit their use. This situation has increased the importance of monitoring and detection of phthalates in various environmental and biological matrices including drinking and surface water, soil, sediment, indoor and/or outdoor air, food, milk, blood, saliva and urine. Conventional phthalate detection methods are usually laboratory-based and have significant drawbacks such as the requirement for appropriate laboratory settings and skilled workers as well as long test periods, expensive and complex processes. As a result, there is a growing interest on novel analytical techniques for detecting phthalates from a variety of media in a cost-effective, fast, selective and sensitive manner. Biosensor-based methods present alternatives to conventional detection approaches for the determination of phthalate from complicated matrixes. This chapter focuses on the recent approaches for biosensor-based phthalate analysis including biological/biomimetic recognition elements and novel sensor materials such as nanomaterials, metal-organic frameworks and micro or nano electromechanical systems.
Use of digital historical material and alternative teaching tools in history lessons project TEBIT
(IGI Global, 2022) Berk, Neval Akça; Gültekin, Fatma; Berk, Fatih; Üstündağ, Mutlu; Güneş, Erhan; Karabağ, Gülin; Tanrıverdi, Mustafa; Uysal, Mevlüt; Kaymakçı, Selahattin; Tokdemir, Ahmet
The aim of this chapter is to provide history teachers with digital historical resources and alternative teaching tools that they can use in history education in order to help students gain high-level thinking skills in addition to knowledge in history courses. To achieve this, a needs analysis for Turkish history teachers was performed to determine which subjects should be focused on in history courses, and what kind of digital historical resources and alternative teaching tools are required. The findings have shown that history teachers face difficulties in teaching ancient civilizations. Teachers have expressed that they remain abstract and incomprehensible to the students due to the inejficacy of materials and teaching tools. It has been determined that they need proper digital historical sources and alternatives most fitting for the subject at hand.
Modelling Ozancık village (Aksaray) in computer environment using UAV photogrammetry
(Mersin University, 2022) Yılmaz, Hacı Murat; Aktan, Nusret; Çolak, Adem; Alptekin, Aydın
Modelling the terrain with high accuracy is vital to create modern settlement areas, and to find solutions that threaten the people. Traditional land surveying is a time-consuming and expensive method. Unmanned aerial vehicle (UAV) is a powered aerial vehicle without a human operator. UAV related case study publications have been increased since last two decades. Detailed three-dimensional (3D) information on the land surface can be obtained from high spatial resolution point clouds. Modelling the terrain requires up-to date information. UAV can provide high-resolution images with low cost in the order of centimeters. We can reconstruct the terrain in a 3D representation using photogrammetry. In this study, we model a village located in Aksaray city using UAV photogrammetry. We created the orthomosaic and Digital Surface Map (DSM) of the region to characterize the terrain in detail. The obtained model and maps will help us to generate modern living space.
A coordinated EV charging scheduling containing PV system
(ilhami Colak, 2022) Akıl, Murat; Dokur, Emrah; Bayındır, Ramazan
The two main reasons for the increase in carbon emissions are the use of fossil fuel resources in the transportation and energy sector. It is possible to reduce these emissions significantly by expanding Electric Vehicles (EVs) in the transportation sector and renewable energy sources (RES) in electric power generation. While the adoption of EVs is still struggling for various reasons, such as battery costs and reduced range, rising fuel prices combined with government policy sanctions and incentives are increasing the need for EVs. The increased penetration of EVs on the grid is likely to pose a very complex operational problem. Therefore, this penetration can result in overloading of the infrastructure equipment in the distribution system and a power outage. This study focuses on the coordinated charge scheduling for EVs with a photovoltaic (PV) system as one of the Renewable energy sources for seamless integration of EVs into the grid. In this paper, charge scheduling of EVs has been made by considering the EV battery state of energy (SoE) value. Mixed Integer Linear programming (MILP) technique is used for the charge scheduling model of EVs. Thus, the charge scheduling of EVs is made within the allowable limits in the grid. It is also a systematic reference work in the proposed approach because of the load balancing of the EVs with the power supplied from the PV system.
Expanding the equilibrium solubility and dissolution thermodynamics of benzoic acid in aqueous alcoholic mixtures
(Multidisciplinary Digital Publishing Institute (MDPI), 2022) Akay, Sema; Kayan, Berkant; Peña, M. Ángeles; Jouyban, Abolghasem; Martínez, Fleming; Acree, William E.
The equilibrium solubility of benzoic acid in water and ethanol, as well as in nine {ethanol (1) + water (2)} mixtures, was determined from T = (293.15 to 323.15) K. Benzoic acid mole fraction solubility in these aqueous-ethanolic mixtures was adequately correlated with some well-known correlation/prediction models, obtaining mean percentage deviations of 2.2 to 7.6%. Apparent thermodynamic quantities, namely, Gibbs energy, enthalpy, and entropy, for the dissolution, mixing and solvation processes, were computed by means of the van ’t Hoff and Gibbs equations. The enthalpy–entropy compensation plot of apparent enthalpy vs. apparent Gibbs energy of dissolution was not linear, indicating enthalpy and entropy mechanisms for transfer. Ultimately, by using the inverse Kirkwood–Buff integrals, it is observed that benzoic acid is preferentially solvated by water molecules in water-rich mixtures but preferentially solvated by ethanol molecules in those {ethanol (1) + water (2)} mixtures of 0.24 < x1 < 1.00.
