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Bim based cfd algorithm for a/c placement in office environment
Çelik, Ahmet Barış; Akçamete Güngör, Aslı; Department of Civil Engineering (2022-2-11)
Today, cooling systems are one of the main energy-consuming elements in buildings. In the current situation, all cooling systems are designed to minimize the energy consumption of the relevant systems in commercial and residential buildings. Efficiency optimization studies of cooling systems are addressed in studies in the construction sector and the academic field. However, along with the optimization of energy consumption, ensuring the thermal comfort of people, which is the main element of the cooling sy...
EFFECT OF PSYLLIUM AND CELLULOSE FIBER ADDITION ON STARCH DIGESTIBILITY FOR BREAD AND CRACKER
Bilgiç, Hilal; Şensoy, İlkay; Department of Food Engineering (2022-2-9)
Understanding the interactions between fibers and other food components gain importance every day due to the increasing number of informed consumers about the health benefits of high fiber-containing foods. The objective of this study was to investigate the effects of fiber addition on the starch digestion behavior of bread and cracker samples. Fiber-added samples (bread or cracker) were prepared by replacing 10 % of the wheat flour with the fibers (psyllium or cellulose). Physical and quality parameters of...
CREATING COLLABORATIVE RESEARCH ENVIRONMENT IN HIGH PERFORMANCE COMPUTING: AN ANALYSIS OF TURKEY
Nuhoğlu, Gökçe; Aydınoğlu, Arsev Umur; Department of Science and Technology Policy Studies (2022-5)
The use of High-Performance Computing (HPC) has become vital not only in computer science but also in many scientific areas ranging from Covid-19 studies to space sciences. Thus, although HPC is at the heart of many small and large-scale collaborations, its relationship with collaboration is quite limited in the literature. The studies mainly focused on HPC return on investment. In this thesis, collaboration in studies using HPC is investigated from the researcher's perspective using HPC. The study is carri...
PROCESSING CELLULOSE NANOCRYSTAL SUSPENSIONS FOR ALIGNED DEPOSITION
Kocaman, Ceren; Bukusoglu, Emre; Çulfaz Emecen, Zeynep; Department of Chemical Engineering (2022-4-26)
Precise control over membrane performance by tuning fabrication parameters is highly desirable. We developed ultrafiltration membranes by depositing cellulose nanocrystals (CNCs) of 180 nm length and 8 nm diameter on porous support via tangential flow filtration, then irreversibly coagulated the deposited layer permeating highly concentrated AlCl3 solution. At a high enough shear rate on the support surface, CNCs aligned in the flow direction, showing a nematic order. The shear rates for transition to the n...
PROTECTION OF UNACCOMPANIED AND SEPARATED MIGRANT CHILDREN UNDER INTERNATIONAL LAW
Kara, Habibe; Torun, Zerrin; Department of International Relations (2022-5)
The number of children migrating alone or becoming unaccompanied or separated during and after their perilous journey has dramatically increased in recent years. Several reasons such as the desire to access to better living conditions including education and employment and economic prosperity or to have protection from violence, exploitation, or abuse keep forcing children to leave often without their parents the country where they live and seek new living spaces. As aliens and children, who lack parental p...
Yapay Sinir Ağları ile Sınıf Mekanlarında Performans Tahmini
Duran, Ayça; Gürsel Dino, İpek (2021-06-29)
Educational facilities account for approximately 12% of the energy consumed by buildings in the US and UK. Classrooms should provide their occupants' satisfactory indoor environments as indoor conditions play a determinant role in the performance, productivity, attendance, and health of students and teachers. Indoor air quality and thermal comfort are two major determinants of healthy classrooms. Generally, classrooms operate at full capacity, leading to severe indoor overheating degrees (IOD) and high carb...
Riverine Microplastic Loading to Mersin Bay, Turkey on the North-eastern Mediterranean
Ozguler, Ulku; DEMİR, AYDENİZ; Kayadelen, Gulsah Can; Kıdeyş, Ahmet Erkan (2022-07-01)
Microplastics sampled downstream from a total of eight rivers were analysed as the first attempt to determine microplastic composition in rivers and load to Mersin Bay, in the north-eastern Mediterranean Sea. With a share of 83.5%, fibres were the dominant category from all samples. Basic characteristics (form, colour, average size, polymer) of microplastics from these rivers were similar to those reported from the marine environment in Mersin bay. The overall average number of microplastics calculated for ...
Ocean Literacy across the Mediterranean Sea basin: Evaluating Middle School Students' Knowledge, Attitudes, and Behaviour towards Ocean Sciences Issues
Koulouri, Panayota; Mogias, Athanasios; Mokos, Melita; Cheimonopoulou, Maria; Realdon, Giulia; Boubonari, Theodora; Previati, Monica; Formoso, Alba Tojeiro; Kıdeyş, Ahmet Erkan; Hassaan, Mohamed Aly; Patti, Patrizia; Korfiatis, Kostas; Fabri, Sandra; Juan, Xavier (2022-01-01)
The Mediterranean Sea is characterized by rich biodiversity, and its region hosts people living in several countries with a rich variety of cultures, but - at the same time - it is "under siege", due to anthropogenic pressures. To address these pressures, many actions are needed aiming, among others, at establishing Ocean Literacy (OL) across the Mediterranean countries and preparing the future generation of Mediterranean Sea-literate citizens. Towards this aim, the present cross-national study investigated...
Good action of a nilpotent group with regular orbits
Ercan, Gülin; GÜLOĞLU, İSMAİL ŞUAYİP (2022-04-01)
Suppose that A is a finite nilpotent group of odd order having a good action, in the sense of [1], on the group G of odd order. Under some additional assumptions we prove that the Fitting height of G is bounded above by the sum of the numbers of primes dividing vertical bar A vertical bar and vertical bar C-G(A)vertical bar counted with multiplicities.
Effect of the Access to Healthcare Services Among Syrian Refugees in Turkey
Özen, İlhan Can; Tuncay Alpanda, Berna (2022-03-01)
The Syrian population influx has dislocated a significant number of people (6.7 million of people outside the Syrian borders, 6.5 million of people among the different provinces of Syria). The biggest group among this moving population between borders has integrated into the Turkish society, and economy. From the macro and micro perspectives, the health system integration is significantly graded by the Syrian population. We will focus on the early age group, among the refugees, as their health vulner...
Mind Your Manners! A Dataset and a Continual Learning Approach for Assessing Social Appropriateness of Robot Actions
Tjomsland, Jonas; Kalkan, Sinan; Gunes, Hatice (2022-03-01)
To date, endowing robots with an ability to assess social appropriateness of their actions has not been possible. This has been mainly due to (i) the lack of relevant and labelled data and (ii) the lack of formulations of this as a lifelong learning problem. In this paper, we address these two issues. We first introduce the Socially Appropriate Domestic Robot Actions dataset (MANNE RS-DB), which contains appropriateness labels of robot actions annotated by humans. Secondly, we train and evaluate a baseline ...
Early Childhood Teachers' Beliefs and Self-reported Practices about Circle Time
Mumcuoğlu, Ayşenur; Demircan, Hasibe Özlen; Department of Early Childhood Education (2022-5)
The aim of the study is to investigate in service early childhood teachers’ beliefs and self-reported practices about circle time. In this study, explanatory sequential mixed method design which comprises quantitative part and qualitative part followed by each other was employed sequentially. Participants of the study were in service early childhood teachers who are working in six main districts of Ankara. In the first part of the study, Early Childhood Teachers’ Beliefs and Self-reported Practices about Ci...
Anomalous dispersion in gravity theories
Altas, Emel; Kilicarslan, Ercan; Tekin, Bayram (2022-03-01)
A wave pulse (be it a gravitational wave or a light wave) undergoes anomalous dispersion in a vacuum in flat spacetimes with an even number of spatial dimensions even if all the frequencies move at the same speed. Such an anomalous dispersion does not occur in spacetimes with an odd number of spatial dimensions. We study various gravity theories and show that dispersion-free propagation is possible in even number of spatial dimensions if the background is not the Minkowski but the de Sitter spacetime and th...
Context dependent isoform specific PI3K inhibition confers drug resistance in hepatocellular carcinoma cells.
Narci, Kubra; Kahraman, Deniz Cansen; Koyas, Altay; Ersahin, Tulin; Tuncbag, Nurcan; Atalay, Rengul Cetin (2022-03-24)
Background: Targeted therapies for Primary liver cancer (HCC) is limited to the multi-kinase inhibitors, and not fully effective due to the resistance to these agents because of the heterogeneous molecular nature of HCC developed during chronic liver disease stages and cirrhosis. Although combinatorial therapy can increase the efficiency of targeted therapies through synergistic activities, isoform specific effects of the inhibitors are usually ignored. This study concentrated on PI3K/Akt/mTOR pathway and t...
Critical Angle and Fundamental Frequency of Symmetric Airfoils at Low Reynolds Numbers
Kurtuluş, Dilek Funda (2022-05-01)
The unsteady vortex evolution of NACA 0012 airfoil is numerically investigated at low angles of attack ranging from 0 degrees to 10 degrees where the separation is performed from the trailing edge. The Reynolds number ranges between 1000 and 4000. The laminar separation bubble at the trailing edge is observed and the main flow features are presented. It is found that, the increase of the angle of attack and Reynolds number result higher lift to drag ratio by an extensive decrease of the drag coefficient bel...
The genomic and epigenomic evolutionary history of papillary renal cell carcinomas
Zhu, Bin; et. al. (2020-06-01)
Intratumor heterogeneity (ITH) and tumor evolution have been well described for clear cell renal cell carcinomas (ccRCC), but they are less studied for other kidney cancer subtypes. Here we investigate ITH and clonal evolution of papillary renal cell carcinoma (pRCC) and rarer kidney cancer subtypes, integrating whole-genome sequencing and DNA methylation data. In 29 tumors, up to 10 samples from the center to the periphery of each tumor, and metastatic samples in 2 cases, enable phylogenetic analysis of sp...
o tau-Continuous, Lebesgue, KB, and Levi Operators Between Vector Lattices and Topological Vector Spaces
Alpay, Safak; Emelyanov, Eduard; Gorokhova, Svetlana (2022-06-01)
We investigate o tau-continuous/bounded/compact and Lebesgue operators from vector lattices to topological vector spaces; the Kantorovich-Banach operators between locally solid lattices and topological vector spaces; and the Levi operators from locally solid lattices to vector lattices. The main idea of operator versions of notions related to vector lattices lies in redistributing topological and order properties of a topological vector lattice between the domain and range of an operator under investigation...
Hypothesis-driven simulation experiments with an extension to SED-ML
Cam, S.; Oğuztüzün, Mehmet Halit S.; Yilmaz, L. (2022-03-01)
Most of the frameworks or assistance systems for experiment specification do not provide a process explicitly based on formally specified hypotheses. This deficiency leads to inaccurate or insufficient record of an experiment, decreasing the trustworthiness and reproducibility of the experiment. Moreover, the wide variety of models, metamodels, tools, and data for experimentation requires Global Model Management (GMM) that is utilizing Model-Driven Engineering techniques, facilitates documentation, sharing,...
Computational Optical Sensing and Imaging 2021: introduction to the feature issue
Ke, Jun; Alieva, Tatiana; Öktem, Sevinç Figen; Silveira, Paulo E. X.; Wetzstein, Gordon; Willomitzer, Florian (2021-03-01)
This feature issue includes two reviews and 34 research papers that highlight recent works in the field of computational optical sensing and imaging. Many of the works were presented at the 2021 Optica (formerly OSA) Topical Meeting on Computational Optical Sensing and Imaging, held virtually from 19 July to 23 July 2021. Papers in the feature issue cover a broad scope of computational imaging topics, such as microscopy, 3D imaging, phase retrieval, non-line-of-sight imaging, imaging through scattering medi...
Functional stratification of cancer drugs through integrated network similarity
Beyge, Seyma Unsal; Tunçbağ, Nurcan (2022-04-01)
Drugs not only perturb their immediate protein targets but also modulate multiple signaling pathways. In this study, we explored networks modulated by several drugs across multiple cancer cell lines by integrating their targets with transcriptomic and phosphoproteomic data. As a result, we obtained 236 reconstructed networks covering five cell lines and 70 drugs. A rigorous topological and pathway analysis showed that chemically and functionally different drugs may modulate overlapping networks. Additionall...