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The hub location problem deals with locating hub facilities and allocating non-hub nodes to hub. Hub location problem is classified as p-hub median problem, p-hub center problem, hub covering problem and hub location problem with fixed cost in the literature. …

The term structural optimization is commonly used for the optimization of engineering structures, such as building, automobile, or airplane structures for improved strength, stiffness properties, fatigue life and reduced weight or cost. Main purpose of this st…

A microgrid is a power grid consists of distributed power generation units and loads. Microgrid is also a system that can operate in grid-connected mode and islanding (autonomous) mode. The control of distributed power generation units in microgrids is necessa…

Today, artificial intelligence, which has been used in all areas of life, has been used effectively in real estate housing market researches. Artificial intelligence, one of the techniques of artificial intelligence, inspired by the working principle of human …

To evaluate and compare choroidal thickness in patients with PPR (papulopustular rosacea) and healthy controls. Methods: In this prospective, cross-sectional study, thirty eyes of 30 patients with PPR and 30 eyes of 30 age- and sex-matched healthy subjects wer…

The increase in firms in the furniture industry has made competition difficult. In this competitive environment, it is important to collect data and extract meaningful information. Every second, large amounts of data are generated on the Internet. The use of s…

There is a global high demand for creating smart cities due to the increasing population of the world and lack of natural resources. There are six stated criteria in order to be eligible to become a smart city, which are directly related to governance, economy…

Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is a pest species that has become an important problem for plant breeders all over the world. 2017 in Kemalpasa (Artvin, Turkey) has also been identified and added to our list of alien invasive species. In a…

The U-shaped assembly line balancing (UALB) problem has been extensively investigated in the existing academic literature. However, only a limited number of studies consider the uncertainty in the assembly lines. In this research, a robust formulation is devel…

Many structures, machinery, equipment, heritages, also socio-cultural systems may be subjected to the unfavourable impact caused by various disaster risks, such as flooding, heavy snow, earthquakes, landslides, hurricanes etc. For prevention and reduction of d…

Flexible job shop scheduling problem (FJSSP) contains two sub-problems, that is, routing and scheduling. Each operation is assigned to a machine among a set of alternative machines in the routing sub-problem, whereas the assigned operations on all machines are…

Tüm bilimlerde olduğu gibi matematikte de geniş bir yabancı kaynak desteği ile çalışmak başarıyı artıracağı açıktır. Özellikle problem çözümlerinde yeterince değişik problem bulma ve inceleme konuların anlaşılması açısından faydalı olacağı, değişik problemleri…

The study of various mathematical problems (such as elasticity, non-Newtonian fluids and electrorheological fluids) with variable exponent growth condition has been received considerable attention in recent years. These problems are interesting in applications…

In recent years there has been an increasing interest in the study of various mathematical problems with variable exponent Lebesgue spaces. There are also a lot of published papers in these spaces. Spaces of weakly differentiable functions, so called Sobolev s…

Periodontal hastalıklara ve temporomandibular eklem bozukluklarına neden olan, ağız diş sağlığını etkileyen, çürük oluşumunu arttıran maloklüzyonun, psikolojik, kültürel ve sosyal yönleri, ağız-diş ve genel vücut sağlığının ayrılmaz bir parçası olarak görülmek…

Günümüzde, birçok araştırmacı optimizasyon problemleri çözen algoritmaları geliştirme eğilimindedir. Gerçek dünya problemleri ise genelde birden çok amaca sahip oldukları için çok amaçlı optimizasyon problemleri üzerine geliştirilen algoritmalar trend olmuştur…

Scientific progress is an ongoing process and humans always have new ideas for new inventions. Although, scientific process is cumulative, you must invent the tire before inventing the car. Currently, mankind has past that point and looking towards to new chal…

Son yıllarda yaşanan ekonomik daralma sonucunda üretim maliyetlerini azaltmak ve kar marjlarını arttırmak firmalar için önemli bir hedef haline gelmiştir. Özellikle lojistik ve dağıtım şirketlerinin operasyonel işlemleri araç rotalama problemi olarak ele alına…

In this study, chicken and ground beef samples purchased from supermarkets and butchers in Samsun Province were analyzed for presence of Pseudomonas (P.) aeruginosa. In this case, classical culture technique were applied with molecular techniques. Isolation wa…

A total of 70 fish samples were randomly purchased from different butchers and supermarkets brands in Samsun Province, Turkey in 2018, and analysed for present of Pseudomonas (P.) aeruginosa. For that purpose, P.  aeruginosa isolation was carried out in conven…