Energy Supply Chain and Energy Security

ÖZKAN NESİMİOĞLU, Şerife

Energy Supply Chain and Energy Security Şerife Özkan Nesimioğlu Correspondence: serife.ozkan.nesimioglu@karatay.edu.tr In general, supply chain security is a prominent part of energy security, which is defined as “uninterrupted availability of energy sources at an affordable price” by International Energy Agency (IEA). In more detail, energy security can be separated into two sub-definitions as short and long- term energy security. Short term energy security focuses on the ability of the energy system to react promptly to sudden changes in the supply- demand balance. Here, sudden changes refer ...Daha fazlası

Forecasting of solar radiation using different machine learning approaches

DEMİR, Vahdettin | ÇITAKOĞLU, Hatice

In this study, monthly solar radiation (SR) estimation was performed using five different machine learning-based approaches. The models used are support vector machine regression (SVMR), long short-term memory (LSTM), Gaussian process regression (GPR), extreme learning machines (ELM) and K-nearest neighbors (KNN). Modeling of these approaches was carried out in two stages. In the first stage, VIF analysis was carried out to develop the model. Thus, the input parameters that decrease the performance of the model are removed. In the second stage, remaining input parameters such as meteorological ...Daha fazlası

Emerging intercultural identity in the Turkish EFL context

The paper argues that for individuals to develop intercultural identity, they do not necessarily need to experience intercultural experiences. A questionnaire devised by the author is administered to 227 Turkish learners of English aged 19-23. The findings of self-reported responses to a 37-item questionnaire as well as the qualitative data reveal that learners feel they have a slightly different identity and that English is an asset, a passport to a world of new experiences in socialization and cross-cultural communication. The paper concludes that it is legitimate to speak of intercultural i ...Daha fazlası

Systematic review of mycotoxins in food and feeds in Turkey

ÜNÜSAN, Nurhan

Mycotoxins are toxic natural contaminants of food and feeds and are produced by various fungi fromAspergillus,Alternaria,Fusarium, andPenicilliumgenera. Molds and their toxins have attracted much attention worldwide dueto the important economic losses related to their effects on human health and domestic and international trade.Although more than 400 mycotoxins have been identified, most studies have focused on aflatoxins, ochratoxin A,fusarium toxins, zearalenone, patulin, and trichothecenes owing to their relationships with food safety andeconomic losses. In Turkey, the dramatic variations i ...Daha fazlası

Disaster management and preventive conservation in cultural heritage: Konya Archaeology Museum case

DİŞLİ, Gülşen | BACAK, Fatma Nur

This study focuses on the first stage of the disaster management cycle in cultural heritage, including risk preparedness and preventive conservation. The main objective is to develop a systematic approach to evaluate and investigate old museum buildings in the pre-disaster stage. Konya Archaeology Museum was chosen as a case study to test the applicability of this systematic approach, mainly the RE-ORG model and Visual Preassessment Method: UNI EN 16096 (2012. Standard for Condition Survey and Report of Built Cultural Heritage. https://www.enstandard.eu/csn-en-16096-conservation-of-cultural-pr ...Daha fazlası

Türkiye Ve Ab Ülkelerinin Rusya'dan Doğal Gaz İthalat Yöntemlerinin Karşılaştırılması: Türkiye İçin Öneriler

ÖZCAN, Mustafa

Birincil enerji piyasasında payının artması beklenen ve dünyanın daha temiz, daha uygun maliyetli ve güvenli bir enerji geleceğine geçişinde önemli bir rol oynama potansiyeline sahip olan tek fosil yakıt olan doğal gaz, dünyadaki enerji arzının hayati bir bileşenidir. Taşınmış olduğu nitelikleri doğalgazı jeopolitik planda uluslararası önemini artırmaktadır. Türkiye ve AB ülkelerinin enerji politikaları, arz güvenliğine gerekli bir unsur olarak giderek daha fazla önem atfetmektedirler. Bu ülkelerinin gelişen ekonomilerinde enerji ve enrjinin de en önemli bileşenlerinden birisi olan doğal gaz, ...Daha fazlası

Numerical modeling of Samsun Mert River floods

ÜLKE, Aslı | BEDEN, Neslihan | DEMİR, Vahdettin | MENEK, Necati

Floods are considered one of the most important natural disasters after earthquakes in Turkey. As a result, there is currently great public interest in this issue and it is necessary to intensify research activities in order to understand natural disasters better and to reinforce risk management. The effect of climate change on meteorological events causes an increase in extreme events such as excessive precipitation in some regions. An extreme natural event becomes a disaster when it has a large impact on human settlements and activities. Study area Samsun city is placed in the north of Turke ...Daha fazlası

Informal Breast Milk Sharing in a Muslim Country: The Frequency, Practice, Risk Perception, and Risk Reduction Strategies Used by Mothers

ONAT, Güliz | KARAKOÇ, Hediye

Turkey is the first and only Islamic country which has initiated a process to establish a milk bank. However, the effort was abandoned because of religious concerns. Informal breast milk sharing has become a practical alternative to some. Research Aims: To document the religious concerned views and attitudes toward breast milk sharing and to determine risk reduction strategies of mothers in an Islamic country. Materials and Methods: Participants comprised volunteers from relevant forums or members of social media groups on the Internet. The participants (n = 435) were divided into three groups ...Daha fazlası

Absence of the mecC gene in methicillin-resistant Staphylococcusaureus isolated from various clinical samples: The first multi-centeredstudy in Turkey

ÇIKMAN, Aytekin | AYDIN, Merve | GÜLHAN, Barış | KARAKEÇİLİ, Faruk | KURTOĞLU, Muhammet Güzel | YÜKSEKKAYA, Şerife | PARLAK, Mehmet | GÜLTEPE, Sümbül Bilge | ÇOPUR ÇİÇEK, Ayşegül | BAYINDIR BİLMAN, Fulya | ÇİFTÇİ, İhsan Hakkı | KARA, Murat | ATMACA, Selahattin | ÖZEKİNCİ, Tuncer

tBackground: mecA is a predefined gene causing methicillin resistance in Staphylococcus aureus (S. aureus)isolates; however, it has been shown that some methicillin-resistant S. aureus (MRSA) strains do notcarry this gene. Recently, in isolates found to be MRSA-positive but mecA-negative, a new resistance gene called mecC, which is a homolog of mecA, has been reported. This study aimed to investigate the mecCand mecA genes in MRSA strains isolated from different geographic regions in Turkey.Methods: The sample of the study consisted of 494 MRSA strains isolated from seven geographical regionsi ...Daha fazlası

Flood Modeling of Samsun/Atakum Region by GIS Tools

BEDEN, Neslihan | DEMİR, Vahdettin | ÜLKE KESKİN, Aslı

Study area Samsun/Atakum province is almost under threat of flooding in each year. In this region, the main reason of devastating flood is the influence of the Degirmen stream especially during March, April, and July and due to seasonal rainfall, which eventually makes the district vulnerable to flooding. In addition, the human-based constructions and the collapse of water retaining structures are among the main causes of flooding. In this study flood risks of Samsun Degirmen stream determinate by MIKE 11 and GIS. Numerical model selection for studies provides advantages in developing and chan ...Daha fazlası

Flood Modeling by GIS Tools

BEDEN, Neslihan | DEMİR, Vahdettin | ÜLKE, Aslı

In this study flood risks of Samsun Degirmen stream determinate by MIKE 11 and GIS. In this study, MIKE powered by DHI software used for numerical 1D modeling of study area. The hydrological and hydraulic data for the study area were obtained from the Turkish General Directorate of State Hydraulic Works. ArcGIS program was used for creating a triangulated irregular network data (TIN). The flood inundation maps demonstrated that some areas, from the upstream to downstream of the Degirmen stream basin is affected from 100 year and 500 year return period events.

Developing numerical equality to regional intensity–duration–frequency curves using evolutionary algorithms and multi‑gene genetic programming

ÇITAKOĞLU, Hatice | DEMİR, Vahdettin

This study aims to carry out regional intensity−duration−frequency (IDF) equality using the relationship with IDF obtained from point frequency analysis. Eleven empirical equations used in the literature for seven climate regions of Turkey were calibrated using particle swarm optimization (PSO) and genetic algorithm (GA) optimization techniques and the obtained results were compared. In addition, in this study, new regional IDF equations were obtained for each region utilizing MultiGene Genetic Programming (MGGP) method. Finally, Kruskal–Wallis (KW) test was applied to the IDF values obtained ...Daha fazlası