The devices developed in the field of organic electronics in recent years are on the technological applications and development of organic electronic devices using organic semiconductor films. The main applications of the organic electronic revolution are; Electrochromic Device, Organic Light Emitting Diodes (OLED), Organic Field Effect Transistors (OFET). Among these devices, OLED technology has taken its place in the commercial market in the last five years and has started to be used in our daily life in a short time. The efficiency of OFET devices is related to the operation of the devices at low voltage. This is only possible if the load carriers in the channel of the OFET have a low distance. A new field of research is the ability to implement two or more features on a single device, in the construction of integrated devices. Light emitting transistors (OLEFET), where light emission and current modulation are collected in a single device, are the most intensively studied devices. In this study, ITO substrate, source and drain electrodes were made from aluminum electrode structured organic field effect OLEFETs. In the study of instead of polymer dielectric PVA, PMMA polymer material which is mostly used in OFET construction was preferred.
{"title":"Low Voltage Organic Field Effect Light Emitting Transistors with Vertical Geometry","authors":"M. Uygun, S. Berber","doi":"10.36287/setsci.4.6.112","DOIUrl":"https://doi.org/10.36287/setsci.4.6.112","url":null,"abstract":"The devices developed in the field of organic electronics in recent years are on the technological applications and development of organic electronic devices using organic semiconductor films. The main applications of the organic electronic revolution are; Electrochromic Device, Organic Light Emitting Diodes (OLED), Organic Field Effect Transistors (OFET). Among these devices, OLED technology has taken its place in the commercial market in the last five years and has started to be used in our daily life in a short time. The efficiency of OFET devices is related to the operation of the devices at low voltage. This is only possible if the load carriers in the channel of the OFET have a low distance. A new field of research is the ability to implement two or more features on a single device, in the construction of integrated devices. Light emitting transistors (OLEFET), where light emission and current modulation are collected in a single device, are the most intensively studied devices. In this study, ITO substrate, source and drain electrodes were made from aluminum electrode structured organic field effect OLEFETs. In the study of instead of polymer dielectric PVA, PMMA polymer material which is mostly used in OFET construction was preferred.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88184922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fatmanur Kübra Bakır, M. Demir, Ozgur Karakas, Erdoğan Kanca
Polyurethane adhesives are widely used in footwear, textile, construction and automotive industries. Adhesives are the most widely used in automotive filters. Filling materials commonly used in filters are lime and calcite. However, alternatives are being sought to reduce cost instead of these materials. Hematite a by-product of iron and steel industryhas been chosen as the filling material of the polyurethane adhesive to be used in this study since it will reduce the cost compared to the alternatives. In this study, different ratios of lime, calcite and hematite were used in the formulation and the resultant polyurethane adhesives were compared. Specimens for tensile test were prepared by applying the to a 21x25 mm area between the filter paper and the metal. Adhesion was not observed in some of the prepared samples, the adhered ones were broken from the paper during the tensile test. In order to examine the bonding ability of the adhesive the bonding surface was reduced to 5x25 mm. Nevertheless, the tensile test showed that the samples again broke from the paper. Secondly, the prepared adhesives were applied as 21x25 mm between the metal and metal for tensile testing. From the experimental studies made with samples prepared according to the standards of single lap connection with the universal tensile tester, it was found that the waste hematite particles added to the adhesive were used with lime and the polyurethane adhesion joints improved the slip performance by 68.70% compared to those used only with calcite.
{"title":"Atık Hematitin Dolgu Malzemesi Olarak Hint Yağı Tabanlı Poliüretan Yapıştırıcılarda Kullanılabilirliğinin Araştırılması","authors":"Fatmanur Kübra Bakır, M. Demir, Ozgur Karakas, Erdoğan Kanca","doi":"10.36287/setsci.4.6.123","DOIUrl":"https://doi.org/10.36287/setsci.4.6.123","url":null,"abstract":"Polyurethane adhesives are widely used in footwear, textile, construction and automotive industries. Adhesives are the most widely used in automotive filters. Filling materials commonly used in filters are lime and calcite. However, alternatives are being sought to reduce cost instead of these materials. Hematite a by-product of iron and steel industryhas been chosen as the filling material of the polyurethane adhesive to be used in this study since it will reduce the cost compared to the alternatives. In this study, different ratios of lime, calcite and hematite were used in the formulation and the resultant polyurethane adhesives were compared. Specimens for tensile test were prepared by applying the to a 21x25 mm area between the filter paper and the metal. Adhesion was not observed in some of the prepared samples, the adhered ones were broken from the paper during the tensile test. In order to examine the bonding ability of the adhesive the bonding surface was reduced to 5x25 mm. Nevertheless, the tensile test showed that the samples again broke from the paper. Secondly, the prepared adhesives were applied as 21x25 mm between the metal and metal for tensile testing. From the experimental studies made with samples prepared according to the standards of single lap connection with the universal tensile tester, it was found that the waste hematite particles added to the adhesive were used with lime and the polyurethane adhesion joints improved the slip performance by 68.70% compared to those used only with calcite.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88639390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Berna Aksoy, İsmail Hakkı Özölçer, Onur Dündar, Ahmet Sinan İlhan
Living beings need water to continue their life. Water is in an endless cycle and during this cycle, substances which are mixed with water for various reasons cause properties of water to change. Both the use of water and the surrounding areas cause changes in the quality of water. For this reason, it is important to investigate the water quality in rivers and water reservoirs. In this study, Filyos Stream, which is located in the largest sub-basin of the Western Black Sea Basin, was estimated to suspended solids parameters by using artificial neural networks. Water samples were taking from three selected points on the main line of the Filyos Stream. In the laboratory, suspended solids, turbidity, iron and chromium analyzes of water quality parameters were carried out. After, the estimation of the Suspended Solids parameter based on parameters turbidity, flow, iron and chromium was performed by artificial neural networks.
{"title":"Filyos Nehri’ndeki Askıda Katı Madde Miktarının Yapay Sinir Ağları İle Belirlenmesi","authors":"Berna Aksoy, İsmail Hakkı Özölçer, Onur Dündar, Ahmet Sinan İlhan","doi":"10.36287/setsci.4.6.103","DOIUrl":"https://doi.org/10.36287/setsci.4.6.103","url":null,"abstract":"Living beings need water to continue their life. Water is in an endless cycle and during this cycle, substances which are mixed with water for various reasons cause properties of water to change. Both the use of water and the surrounding areas cause changes in the quality of water. For this reason, it is important to investigate the water quality in rivers and water reservoirs. In this study, Filyos Stream, which is located in the largest sub-basin of the Western Black Sea Basin, was estimated to suspended solids parameters by using artificial neural networks. Water samples were taking from three selected points on the main line of the Filyos Stream. In the laboratory, suspended solids, turbidity, iron and chromium analyzes of water quality parameters were carried out. After, the estimation of the Suspended Solids parameter based on parameters turbidity, flow, iron and chromium was performed by artificial neural networks.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"59 1-2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91510463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Ugur, Alptug Unal, Burak Arda Akgöbek, M. Kamanli, S. Cengiz
{"title":"Use of GFRP Bar in Civil Engineering","authors":"A. Ugur, Alptug Unal, Burak Arda Akgöbek, M. Kamanli, S. Cengiz","doi":"10.36287/setsci.4.6.029","DOIUrl":"https://doi.org/10.36287/setsci.4.6.029","url":null,"abstract":"","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"204 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83567328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, the amount of thiamazole (methimazole) in pharmaceutical tablet formulation was determined by using reversed phase liquid chromatography method (RPLC). Chromatographic separation was carried out by using YMC Triart C18 (150 mm × 4.6 mm, 3μm, YMC, USA) column. 5% (v/v) acetonitrile-water binary mixture at pH 9.5 was used as a mobile phase. Metronidazole was chosen as an internal standard. Flow rate was 0.8 ml/min and column temperature was 25 °C in chromatographic separation. The studied wavelengths for thiamazole and metronidazole are 260 and 340 nm, respectively. This proposed method was suitably validated with respect to accuracy, precision, linearity, the limit of detection (LOD) and limit of quantification (LOQ). The calibration graph of thiamazole was linear from 4 ppm to 14 ppm. The recovery of the 5 mg thiamazole containing commercial tablet (Thyromazol) was 100.059%. The proposed RPLC method was successfully applied to the determination of thiamazole in commercial tablet formulation.
{"title":"DETERMINATION OF THIAMAZOLE IN TABLET FORMULATION BY USING REVERSED PHASE LIQUID CHROMATOGRAPHIC METHOD","authors":"K. Poturcu, E. Demiralay","doi":"10.36287/setsci.4.6.146","DOIUrl":"https://doi.org/10.36287/setsci.4.6.146","url":null,"abstract":"In this study, the amount of thiamazole (methimazole) in pharmaceutical tablet formulation was determined by using reversed phase liquid chromatography method (RPLC). Chromatographic separation was carried out by using YMC Triart C18 (150 mm × 4.6 mm, 3μm, YMC, USA) column. 5% (v/v) acetonitrile-water binary mixture at pH 9.5 was used as a mobile phase. Metronidazole was chosen as an internal standard. Flow rate was 0.8 ml/min and column temperature was 25 °C in chromatographic separation. The studied wavelengths for thiamazole and metronidazole are 260 and 340 nm, respectively. This proposed method was suitably validated with respect to accuracy, precision, linearity, the limit of detection (LOD) and limit of quantification (LOQ). The calibration graph of thiamazole was linear from 4 ppm to 14 ppm. The recovery of the 5 mg thiamazole containing commercial tablet (Thyromazol) was 100.059%. The proposed RPLC method was successfully applied to the determination of thiamazole in commercial tablet formulation.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83645936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, a PID controller with fractional order derivative filter (PIDFF) is designed for automatic voltage regulation (AVR) in power systems. In order to ensure maximum transient and steady state performance from the designed controller, the controller parameters and fractional order and gain of the derivative filter are tuned by particle swarm optimization (PSO) algorithm. The PSO algorithm searches the optimum solution in the specified search space for the controller and filter parameters to minimize integral of time-weighted squared error (ITSE) performance metric. The obtained results are compared to reported studies in the literature. As a result, superiority of the PIDFF controller in terms of transient and steady state characteristics is demonstrated. The robustness test of the designed PIDFF controller is also considered.
{"title":"Design of a PID Controller with Fractional Order Derivative Filter for Automatic Voltage Regulation in Power Systems","authors":"Erdinç Şahi̇n","doi":"10.36287/setsci.4.6.013","DOIUrl":"https://doi.org/10.36287/setsci.4.6.013","url":null,"abstract":"In this study, a PID controller with fractional order derivative filter (PIDFF) is designed for automatic voltage regulation (AVR) in power systems. In order to ensure maximum transient and steady state performance from the designed controller, the controller parameters and fractional order and gain of the derivative filter are tuned by particle swarm optimization (PSO) algorithm. The PSO algorithm searches the optimum solution in the specified search space for the controller and filter parameters to minimize integral of time-weighted squared error (ITSE) performance metric. The obtained results are compared to reported studies in the literature. As a result, superiority of the PIDFF controller in terms of transient and steady state characteristics is demonstrated. The robustness test of the designed PIDFF controller is also considered.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78175492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The design of experiments is a highly effective offline quality improvement method to optimize the existing and new processes or products. In the literature, standard experimental situations have been paid a lot of attention. In a number of nonstandard experimental situations, special experimental design techniques should be considered in order to conduct an experiment for design factors. Indeed, an I-optimal design, a computer-generated special experimental design, is a good choice to predict the mean and variance responses under non-standard experimental design situations. In this research work, an I-optimal design is selected to generate experimental design points for a non-standard experimental situation. Then, an I-optimal design-based dual response optimization model is proposed in order to obtain an optimum operating condition for design factors while minimizing the process variance as small as possible. Comparison studies are also conducted. Finally, a numerical example is conducted in order to illustrate the effectiveness of the proposed optimization model.
{"title":"Development of a Dual Response Optimization Model under Non-standard Experimental Design Situations","authors":"Akın Özdemir","doi":"10.36287/setsci.4.6.081","DOIUrl":"https://doi.org/10.36287/setsci.4.6.081","url":null,"abstract":"The design of experiments is a highly effective offline quality improvement method to optimize the existing and new processes or products. In the literature, standard experimental situations have been paid a lot of attention. In a number of nonstandard experimental situations, special experimental design techniques should be considered in order to conduct an experiment for design factors. Indeed, an I-optimal design, a computer-generated special experimental design, is a good choice to predict the mean and variance responses under non-standard experimental design situations. In this research work, an I-optimal design is selected to generate experimental design points for a non-standard experimental situation. Then, an I-optimal design-based dual response optimization model is proposed in order to obtain an optimum operating condition for design factors while minimizing the process variance as small as possible. Comparison studies are also conducted. Finally, a numerical example is conducted in order to illustrate the effectiveness of the proposed optimization model.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"80 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77227026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Özet – Konutlarda enerji tüketiminin artışına karşı yalıtım malzemelerinin kullanımı uzun yıllara dayanan yaygın bir uygulamadır. Yalıtım malzemesinin performansını gösteren en önemli parametre termal iletkenlik katsayısıdır. Termal iletkenlik katsayısını etkileyen, nem ve sıcaklık gibi birçok çevresel etken vardır. Bu çalışmada taş yününün ısı iletim katsayısının bağıl neme bağlı olarak değişimi deneysel olarak incelenmiştir. Deneyler sırasında ortamın bağıl nem değerleri kuru nemlilik, %60, %75 ve %90 olarak seçilmiş ve deneyler her bağıl nem değeri için tekrarlanmıştır. Deneysel düzenek olarak iki adet huni, buz kalıbı, sıcaklık sensörü, nem sensörü ve dereceli kap kullanılmıştır. Huni içerisinde bulunan buz kütlesinin erime miktarına ve sıcaklık değişimine bağlı olarak her bir nem değeri için ısı iletkenlik katsayıları hesaplanmıştır. Ayrıca kuru izolasyon için ısı iletkenlik katsayısı literatürdeki çalışmalarla doğrulanmıştır. Yapılan çalışma sonucunda taş yünlü izolasyon için ısı iletim katsayıları bağıl neme bağlı olarak %28 oranında arttığı gözlenmiştir. Buda göstermektedir yalıtım malzemesi seçiminde ve optimum yalıtım kalınlığının belirlenmesinde ortamın bağıl nemi önemli bir etkendir.
{"title":"Ortam Nemliliğinin Taş Yünü Yalıtım Malzemesi Termal iletkenlik Katsayısı Üzerine Etkisi","authors":"Korhan Ökten","doi":"10.36287/setsci.4.6.088","DOIUrl":"https://doi.org/10.36287/setsci.4.6.088","url":null,"abstract":"Özet – Konutlarda enerji tüketiminin artışına karşı yalıtım malzemelerinin kullanımı uzun yıllara dayanan yaygın bir uygulamadır. Yalıtım malzemesinin performansını gösteren en önemli parametre termal iletkenlik katsayısıdır. Termal iletkenlik katsayısını etkileyen, nem ve sıcaklık gibi birçok çevresel etken vardır. Bu çalışmada taş yününün ısı iletim katsayısının bağıl neme bağlı olarak değişimi deneysel olarak incelenmiştir. Deneyler sırasında ortamın bağıl nem değerleri kuru nemlilik, %60, %75 ve %90 olarak seçilmiş ve deneyler her bağıl nem değeri için tekrarlanmıştır. Deneysel düzenek olarak iki adet huni, buz kalıbı, sıcaklık sensörü, nem sensörü ve dereceli kap kullanılmıştır. Huni içerisinde bulunan buz kütlesinin erime miktarına ve sıcaklık değişimine bağlı olarak her bir nem değeri için ısı iletkenlik katsayıları hesaplanmıştır. Ayrıca kuru izolasyon için ısı iletkenlik katsayısı literatürdeki çalışmalarla doğrulanmıştır. Yapılan çalışma sonucunda taş yünlü izolasyon için ısı iletim katsayıları bağıl neme bağlı olarak %28 oranında arttığı gözlenmiştir. Buda göstermektedir yalıtım malzemesi seçiminde ve optimum yalıtım kalınlığının belirlenmesinde ortamın bağıl nemi önemli bir etkendir.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80550308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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 spaces, play an important role in modern Analysis. The theory of variable exponent Sobolev spaces is useful theoretical tool to study the variable exponent problems, such as solutions of elliptic and parabolic partial differentiable equations, calculus of variations, nonlinear analysis, capacity theory and compact embeddings. Moreover, several authors studied some continuous embeddings from Sobolev spaces to Lorentz spaces. These kinds of embedding results are very interesting and valuable in analysis, and there are many applications of them in various fields. In this paper we define variable exponent LorentzSobolev spaces and prove the boundedness of maximal function in these spaces. Also we will show that there is a continuous embedding between variable exponent Lorentz-Sobolev and Lorentz spaces under some conditions.
{"title":"On Some Properties of Lorentz-Sobolev Spaces with Variable Exponent","authors":"I. Aydın","doi":"10.36287/setsci.4.6.009","DOIUrl":"https://doi.org/10.36287/setsci.4.6.009","url":null,"abstract":"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 spaces, play an important role in modern Analysis. The theory of variable exponent Sobolev spaces is useful theoretical tool to study the variable exponent problems, such as solutions of elliptic and parabolic partial differentiable equations, calculus of variations, nonlinear analysis, capacity theory and compact embeddings. Moreover, several authors studied some continuous embeddings from Sobolev spaces to Lorentz spaces. These kinds of embedding results are very interesting and valuable in analysis, and there are many applications of them in various fields. In this paper we define variable exponent LorentzSobolev spaces and prove the boundedness of maximal function in these spaces. Also we will show that there is a continuous embedding between variable exponent Lorentz-Sobolev and Lorentz spaces under some conditions.","PeriodicalId":6817,"journal":{"name":"4th International Symposium on Innovative Approaches in Engineering and Natural Sciences Proceedings","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80660735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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