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Öğe Thin-Layer drying characteristics of microwave-dried radix Eremut (Eremurus Spectabilis)(Aksaray Üniversitesi, 2017) Aral, Serdar; Kııltaş, Hakan; Kızılca, MeltemThe drying characteristics of radix eremut (Eremurus spectabilis) were investigated using microwave drying method. The drying curves of radix eremut locate in the falling rate regime and time required for drying reduced by raising microwave powers ranging from 160 to 640 W. The experimentally obtained data were fitted to six models. The most accurate models for determining the thin layer drying characteristic of radix eremut were determined to be the Midilli and Page models as the best. Effective moisture diffusion coefficients (Deff) were computed utilizing Fick’s second law equation and the values of Deff found to be in range of 2.300 x 10-9 to 1.690 x 10-8 m2 .s-1 . Revised Arrhenius equation was implemented to identify the activation energy and its value was calculated as 148.82 W.g-1 . The energy efficiency raised with raising microwave power and moisture ratio.Öğe An investigation with neural network of heat loss for optimum insulation(Aksaray Üniversitesi, 2017) Çırak, BekirIn this study, two different artificial neural network models were used for insulation and noninsulation of the heating pipes used for heating in buildings and two different artificial neural networks (YSA) models for the insulated and non-insulated states of the building walls. 3-layer forward feed in YSA models designed for these situations and a back-propagation model is preferred. The sigmoid transfer function is used in the hidden layer and the linear transfer function is used in the output layer. Back propagation artificial neural network topology is preferred as YSA model and the data were presented to the network in normalized form. The temperature values obtained from the network are compared with the measured temperature values and the results are very close to one another. In this way, the use of artificial neural network method for estimation of 4 different internal models, definition of models and the prediction power has increased. In the random and periodic time interval, the inner plaster thickness is 2 cm, the outer plaster thickness is 3 cm and according to the wall width of 17 cm, 10 cm thick insulation (xps material insulated) and according to the non-insulated wall parameters The statistical data generated from this table that is not based on a nonlinear formula, ie, YSA, is introduced to the network structure and the results obtained by testing from the YSA model in the Matlab environment after training were compared and values very close to each other were determined. Again, in a random and periodic time interval insulated with 100 mm pipe size (insulated stapler material) and the values obtained from the table according to the uninsulated pipe parameters and the results from the YSA model were compared and compared very close values have been determined.Öğe Research of required qualifications for baby clothes from past to present(Aksaray Üniversitesi, 2017) Bahadır Ünal, Zümrüt; Şekeroğlu, SerraClothing fabrics go through a series of stages before production stage. Many processes such as bleaching, dyeing, etc. are made with various chemicals. These chemicals must finally be removed from the product by washing. However, it is not possible to completely eliminate some chemicals from the surface. Surfaces on textile that are harmful to health when in contact with skin are at risk in terms of cloth production. In particular, the surfaces used in baby and child outfits should be examined more rigorously. Within the context of "Textile Ecology", harmful chemicals used in clothing production, especially in the last 20 years, have been reduced as much as possible and acceptable limit values have been determined. Therefore, it is expected that the fabrics to be used in baby clothes are subjected to various tests and their compliance with the limit values is examined. Baby skin has a much thinner, less sturdy and delicate feature than adults. For this reason, it is important that the materials used in baby products should not have any risk factors for health. It is desired that the model and material properties must be composed of materials that do not irritate the skin, give a feeling of comfort, and do not trigger allergic disorders. Within the scope of this study, it is aimed to give general information about Oeko-Tex and ecological textile issue, to research the test standards should be infants clothing under 3 years from past to present and to see the rates that can damage the skin and health.Öğe Determination of possible effects of air pollutants for the Kocaeli-Dilovasi(Aksaray Üniversitesi, 2017) Çetinyokuş, SalihaIn the study, it is aimed to determine the possible effects of air pollutants (CO, SO2, NO, NO2, O3) in the Kocaeli-Dilovasi region where the industry is concentrated with ALOHA software. In the modeling studies, air pollutant concentration data for the years 2010 and 2017 of the National Air Quality Monitoring Network established by the Ministry of Environment and Urban Planning was used. Modeling studies were conducted through direct source and instant release scenarios. Toxic effects were identified for all air pollutants and the largest impact areas were identified for the toxic zone. For NO and NO2, the effect distance was determined to be 10km in red (>20 ppm, PAC-3), orange (>12 ppm, PAC-2) and yellow (0.5 ppm, PAC-1) every two years. The worst-case scenario was considered with the selection of the atmospheric F stability class. Toxicity as well as combustion and explosion effects were determined for CO air pollutant. For the year 2010, the flammable region, red (>75000 ppm, 60% LEL) = 2.2 km and yellow (>12500 ppm, 60% LEL) =distance of 4.7km effects were obtained. It was determined that the detonation explosion effects gave larger impact distances (<3km) and showed all explosion effects of the destructions of buildings (>8 psi), serious injury likely (>3.5 psi), and shatters glass (>1.0 psi). It was indicated that concentrations for CO and O3 air pollutants declined in 2017 and so resulted in a decrease in all impact values. It has been predicted that environmental regulations could be more effective if quantitative assessments of the possible effects of air pollutants were made.Öğe Medicinal plants of flora of ksu avsar campus (kahramanmaras) and surrounding areas(Aksaray Üniversitesi, 2017) Kocabaş, Yusuf Ziya; Erol, Adem; Aktolun, OğuzhanKahramanmaras is at the point of the intersection of Mediterranean and Irano-Turanian phytogeographical regions which are very important in terms of geographical location and plant geography. This area has a rich and various vegetation structure due to complex physical geographical structure and other environmental factors. It is crucial to protect by determinating this rich biodiversity. The research area is located in the Kahramanmaras province and on the C6 square in Davis’s grid system. The campus of KSU and its surrounding area is located in the Ceyhan Valley. The native flora of this area has been extensively destroyed by anthropogenic effects. This study was carried out between 2015 and 2017 and the plants used in medicinal and aromatic purposes of the native flora were investigated. As a result, it was determined that 47 plant taxa belonging to 27 families for used medically. In terms of species number, the largest families are as following; Lamiaceae (7), Asteraceae (5), Rosaceae (3). These plant taxa were alphabetically indicated according to their family names, Latin and local names as well as with their used parts and usage purposes.Öğe Development of ontology knowledgebase for archive management systems(Aksaray Üniversitesi, 2017) Ertuğrul, Mehmet; Güneş, AliDigital Archive Management Systems (DAYS) is the most important software tools that provide to manage the millions of digital documents in the administration of the General Directorate of Foundations in electronic environment and share with other institutions. The most important operation in such systems is document search; the aim of it is able to find the required document(s) correctly and quickly for the processes of the institutional functioning and organization. In accordance with the services provided by the foundations, it is expected that DAYS software will search a desired document from millions of documents in the shortest possible time and present it to the user as soon as possible. For this reason, there is a need to enhance the existing DAYS systems used in the General Directorate of Foundations in our country with artificial intelligence approaches. In this study, an ontology-based document search module is proposed for the existing DAYS used by the General Directorate of Foundations to manage their digital archives. The module can work in the backplane, like an additional background module or a Web service, integrated into the DAYS. The proposed system has two basic outputs; Archive Management System Ontology (AYSO) knowledge base and a semantic-based document search engine. However, since the system is quite wide, the article has only mentioned the development of a semantic information base, which is the Archive Management System Ontology and the working principle of the system general.Öğe On a subspace training method for dispersive ds-cdma channels(Aksaray Üniversitesi, 2017) Rızaner, Ahmet; Ulusoy, Ali HakanA subspace training method has been proposed for dispersive direct-sequence code division multiple access (DS-CDMA) channels. Its performance was compared to a matched filter receiver. We think that it is not quite fair to compare a minimum mean square error (MMSE) based receiver to a matched filter receiver. For this reason, we further investigate the method demonstrating that its performance significantly falls short of the true MMSE receiver and that it suffers from error floor. We also illustrate that any attempt to fill the gap significantly increases the system complexity and drops the efficiency of the transmission, which were originally mentioned as the advantages of the proposed method.
