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Copyright of Journal of Faculty of Pharmacy of Ankara University / Ankara Üniversitesi Eczacilik Fakültesi Dergisi is the property of Ankara University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this study, the effectiveness of biodegradable polylactic acid (PLA) coatings for the prevention of residues migrating through polyvinyl chloride (PVC) films was investigated. PLA films prepared in chloroform at concentrations of 5, 10, 15 and 20 wt% were heat sealed to PVC film surfaces in a hot press (130 °C, 5 min, 5 tons). Physical, mechanical, FTIR and migration analyses were performed on these two-layer films. With PLA coating, the thickness of the films increased, mechanical properties decreased and some changes in color values occurred. It was determined by FTIR that there was no structural change on both surfaces of the films as a result of hot pressing. From the overall migration analysis, no migration was observed in the tests with aqueous food simulants, while migration was detected in fatty food simulants. In the specific migration analysis by GC-MS, di-2-ethylhexyl phthalate (DEHP) migration decreased by 50% with PLA coating. It is concluded that PLA coating of PVC stretch films may be a promising application to reduce migration. [ABSTRACT FROM AUTHOR]

Edible films and coatings (YFK) which are indispensable for recycling and classified as bioavailable, are biopolymer materials. Numerous studies have been carried out on environmentally friendly (YFK). Many of these studies are related to the use of plant extracts in (YFK) Addition of plant extract to the said (YFK), antioxidant, antimicrobial, characterization (thickness, water vapor permeability, elongation at break (%E), tensile strength (TS), color, biodegradability, water solubility, absorbance-transmittance analysis, thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC)) and examination of homogeneous distribution (Fourier transform infrared spectroscopy (FT-IR) in edible films, scanning electron microscopy (SEM)) are performed to improve their properties. Unfortunately, the added plant extracts do not always show the expected effect. In this study, a total of 78 studies were analyzed using the keywords of plant extract, edible film, characterization, coating by examining Higher Education Thesis Center, Google Scholar, Web of Science databases. When the studies are examined, it is stated that the chemical structure of the plant extract and the dosage added to the film influence increasing the antioxidant activity. In determining the antimicrobial activity, it was stated that the analysis method affected the result. It is stated that other properties vary depending on the lipophilic and hydrophilic nature of the plant extract. As a result, our study contributes to researchers to develop different research topics. Moreover, it provides a fundamental resource for young researchers within the scope of characterization parameters of (YFK) [ABSTRACT FROM AUTHOR]

Bu çalışmada şeker fabrikası atığı olan melas ve süt farikası yan ürünü olan peynir altı suyu elma ve portakal kaplamasında kullanılarak üç hafta boyunca depolanmıştır. Depolama süresince kalite değişimleri belirlenmiştir. Kaplamada kullanılan peynir altı suyu ve melasın briks değerleri sırasıyla 30 ve 50, pH’ları ise 1 ve 7.8’dir. Çalışmada kaplanan meyvelerin ağırlık kaybı ve renk değerleri incelenmiştir. Çalışma sonucunda üç haftalık depolama periyodunda elma için melas+su, portakal için ise peynir altı suyunun etkisinin önemli olduğu tespit edilmiştir. Melas+su ile kaplanan elmalarda ağırlık kaybı %3.645 iken kaplanmayan örneklerde %6.327’dir. Peynir altı suyu ile kaplanan portakallarda ağırlık kaybı %17.860 iken kaplanmayan örneklerde ise %27.930’dur. Çalışma ile melasın elmada, peynir altı suyunun da portakalda kaplama materyali olarak kullanılabileceği sonucuna varılmıştır. Özellikle ağırlık kaybı meyvelerin depolanmasında istenmeyen bir durumdur. Meyvelerin kaplanması ile bu durum minimuma indirilebilir. Kullanılan peynir altı suyu ve melas özellikle ağırlık kaybının azaltılmasında etkili olmuştur.

Rapid degradation in body fluids is known to be the main shortcoming of the AZ31 magnesium alloy that is aimed to be controlled in this study by chemical conversion of its surface in various phosphate and chloride solutions. Deposited layers on the surface of bare alloy plates were subjected to compositional and morphological analyses to assess their performance as barriers to degradation. Also changes in the mass of the samples and pH of the solutions were monitored during 21 day immersion periods. Formations of prismatic, platelike, needlelike crystals of various compositions including calcium phosphates, magnesium phosphates, magnesium chlorides were observed by scanning electron microscopy and their atomic compositions were determined by EDX and quantitative XRD analyses. The results indicate that a layer of ceramic of various thicknesses can stably form on the base alloy by simple adsorption of the particles suspended in the solution or by nucleation and growth of the products of reactions between dissolved ions and the metal ions released from the surface. These deposition layers that are solely induced by the electrochemical potential of the species in the solution offer facile surface modification methods and novel phases to control the degradation of magnesium alloys in aggressive environments such as body fluids or marine environments.

This study aims to coat the aluminum alloy (AA5754) with graphene oxide by electrophoretic deposition (EPD) method, which is a cheap, eco-friendly, and straightforward process, and to determine the effect of the coating on the corrosion properties of the aluminum alloy. The graphene oxide coatings were characterized by X-ray diffraction (XRD), optical microscopy, and scanning electron microscopy (SEM). It was determined that the graphene oxide coatings grew layer by layer and their thickness increased with increasing time and applied potential. The effect of graphene oxide coating on the corrosion properties of AA5754 aluminum alloy was investigated by a potentiodynamic method in 3.5% NaCl environment. According to corrosion test results, it was determined that the corrosion potential of the coated AA5754 aluminum alloy changed positively, while the corrosion current and corrosion rate decreased. The highest corrosion potential was determined as -805 mV at 5 V-5 min and 7 V-3 min coating conditions. The lowest corrosion current density (9.8.10-7 A∙cm-2), and corrosion rate (0.011 mm∙y-1) were obtained at 5 V-3 min. coating conditions. [ABSTRACT FROM AUTHOR]

Copyright of Çukurova Journal of Agriculture & Food Sciences is the property of Cukurova University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Duzce University Journal of Science & Technology is the property of Duzce University Journal of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Trout is the most widely cultivated and traded fish species in Turkey and many European countries, and a total of 471686 tons of production was realized in Turkey's seas and inland waters in 2021. In addition to its nutritive value, this fish takes a crucial position in the aquaculture sector due to its continuous and intensive production. In this study, innovative bioactive protein hydrolysates (PH) produced from sprat were used as a coating to increase the quality and shelf life of trout fillets stored at +4 °C. The yields of traditional hydrolysate (TH) and ultrasound-assisted hydrolysate (UH) were 8.66% and 12.63%, respectively. Protein values of TH and UH were 75.88 and 74.45%, respectively. Three fillet groups were prepared from trout: uncoated control group (C), traditional enzymatic protein hydrolysate coated group (THC), and ultrasound-assisted enzymatic protein hydrolysate coated group (UHC). TVB-N value, which was 12.96 mg/100g in fresh trout, exceeded the consumable limit with 38.52 mg/100g on the 9th day of storage in the C. This value reached 32.92 mg/100g and 33.62 mg/100g on the 12th day for THC and UHC, respectively. At the beginning of storage, 0.21 mg MA/kg TBA reached the consumable limit with 7.72 mg MA/kg in the C on the 9th day, while THC and UHC remained within the limit with 6.67 mg MA/kg and 6.79 mg MA/kg, respectively. Total aerobic mesophilic bacteria (TAMB) and total aerobic psychrophilic bacteria (TAPB) counts on day 0 of storage were 2.13 log cfu/g and 1.66 log cfu/g, respectively. These values were calculated as 6.90, 5.20, 5.04, 6.95, 3.48, and 3.22 log cfu/g for C, THC, and UHC on the 12th day of storage, respectively. The application of ultrasound during the production of protein hydrolysate significantly increased the yield and hydrolysis degree of UH compared to TH. The lipid ratio of UH was also found to be significantly lower than TH. In these respects, the application of ultrasound has provided an advantage. Although both coatings have provided significant protection compared to the C, generally similar results were obtained between the THC and UHC. PH coatings delayed the chemical, physical, and microbial spoilage of trout fillets and extended the storage period. The results showed that PH can be used as a coating on fish fillets stored in cold conditions. [ABSTRACT FROM AUTHOR]

Copyright of Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi is the property of Artvin Coruh University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Maddenin dördüncü hali olan plazmayı kullanan atmosferik basınçlı plazma işlemi otomotivde boyanabilirlik ve yapışma, tekstilde nem tutma, hava geçirgenliği, ağırlık azaltma ve kir iticilik, gıdalarda bakteri inaktivasyonu ve tıpta iyileştirme hızlandırma gibi birçok alanda kullanılmaktadır. Atmosferik basınçlı plazmanın (ABP) polimerler üzerinde kullanılması yüzey modifikasyonu, yüzey aktivasyonu sağlaması, yüzey temizliği gibi avantajlara sahip olması, pek çok kombinasyonu olması ve parametrelerinin (güç, gaz akış debisi vb.) kontrolü ile beklenen özellikleri sağlaması nedeniyle önemli ve popülerliği artan bir konudur. Bu derleme çalışmasında atmosferik basınçlı plazma hakkında genel bilgiler verildikten sonra özellikle polipropilen (PP) malzeme üzerinde atmosferik basınçlı plazma yönteminin uygulamaları örneklenmiş ve benzer alanlarda yapılan çalışmalarla karşılaştırmalar yapılmıştır.

Two different metallic coating processes (NiCrAlY and NiCoCrAlY) were applied on Inconel 718 substrates using Atmospheric Plasma Spray and High-Speed Oxy Fuel Spray methods. Energy conversion plants, gas turbines, jet engine blades, etc. It was aimed to simulate exposure to particle impact under high temperature in applications. At the end of the coating process, four sample groups with different properties were deposited. Solid particle erosion wear behavior of these samples under ambient conditions and temperature were investigated. A specially designed test rig that can perform solid particle erosion wear tests under high temperature conditions was used in the experiments. In the experiments, 300°C was preferred as the air temperature. Assuming that the particles impacting the surface may have variable direction, three different erosive particle impingement angles were selected as 30°, 60° and 90°. In addition to these experimental parameters, particle impact velocity of ~97 m/s using the double disk method and Al 2O 3 erosive with a size of ~400 μm were determined. As a result of the experiments, the comparative erosion rate graphs of the test samples coated with two different methods were obtained and the results were interpreted by using the SEM, XRD and EDX elemental analyses. In addition, the details of the porosity values of the coatings, hardness and surface roughness measurements of the test specimens were also included in the results of erosion resistance. [ABSTRACT FROM AUTHOR]

Akışkan yatak sistemi, ağır sanayiden, eczacılık, kimya ve gıda sanayisine kadar geniş kullanım alanı bulmaktadır. Bu sistemde küçük katı parçacıklar hava ile temas ettirilir ve hareketleri sağlanarak yatak içerisinde askıda tutulmaları sağlanır. Yatak içerisinde akışkanlaşmanın başladığı andaki hız olarak tanımlanan minimum akışkanlaşma hızı, akışkan yatak sistemlerin en önemli tasarım ve işletme parametresidir. Toz gıdalarda akışkan yatak, kurutma, aglomerasyon, granülasyon ve kaplama proseslerinde yaygın olarak kullanılmaktadır. Akışkan yatak teknolojisinde birçok olay eş zamanlı olarak gerçekleştiğinden sistem üzerine etki eden çok sayıda değişken mevcuttur. Bu derlemede, akışkan yatak, toz gıda proseslerinde akışkan yatak uygulamaları ve akışkan yatak sisteminin kullanılması sırasında dikkat edilmesi gereken parametreler hakkında bilgi sunulmaktadır.

The study was carried out to demonstrate the effects of the use of water-extracted propolis (PE) as a coating material on shelf life, storage temperature, time, and egg quality parameters obtained from free-range laying hens. The idea of coating an egg with a product to preserve its freshness for a longer time has been the subject of research by researchers. For this purpose, there are studies using samples of propolis extracted using different alcohols. In this study, the effects of coating eggs obtained from free-range reared chickens with water extracted PE and keeping them in different storage conditions on the internal and external quality parameters of the eggs were investigated. For this purpose, 80 eggs were collected from 64-week-old Lohmann brown layers. Egg samples were divided into groups of 8 treatments [2 storage times (10 and 20 days) × 2 storage temperatures (4°C and 22°C) × propolis coating on the shell (coated / uncoated)] and arranged to contain 10 eggs per treatment. In the study, it was seen that PE caused positive effects on the shelf life and internal quality characteristics of eggs stored at room and refrigerator temperature, as it covers the pores on the shell. As a result of coating with propolis extract, specific gravity and egg yolk index values increased (P <0.05). In addition, the number of mesophilic bacteria has decreased. Due to these positive effects, propolis can be considered as a natural alternative product that can be used for eggshell coating. It was determined at the end of the research that coating with the water-derived extract of propolis, a by-product of beekeeping activities, might have positive effects on long-term storage. [ABSTRACT FROM AUTHOR]

Copyright of International Journal of Engineering Research & Development (IJERAD) is the property of International Journal of Engineering Research & Development and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Polytechnic is the property of Journal of Polytechnic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of International Journal of Engineering Research & Development (IJERAD) is the property of International Journal of Engineering Research & Development and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Binaya giren güneş enerjisi miktarını kontrol etmek, binaların enerji ihtiyaçlarını azaltmak küresel ısınmaya karşı mücadele etmede alınabilecek önlemlerdir. Bu amaçla, pencereler enerji tasarrufu üzerinde etkili olan özel ince film ile kaplanmıştır. Seralar, güneşten koruyucular, konutlar, ofisler ve otomobillerin ön camları da dahil olmak üzere akıllı kaplamaların çok fazla uygulama alanı vardır. Bu gibi kaplamaların geliştirilmesi, çevresel faydalar sağlayarak enerji maliyetlerinde önemli tasarruf sağlar [1]. Araştırmalar yeni nesil malzemelerin geliştirilmesine yol açmıştır. Malzeme teknolojisindeki gelişmeler, "akıllı malzeme" teriminin sıcaklık, ışık gibi bazı koşullara istenen yanıtı vermesine neden olan ek işlevler kazanmıştır. Değişen sıcaklığa bağlı optik özellikleri değiştirerek ışık ve ısı enerjisini kontrol eden yeni nesil termokromik akıllı camları üretme konusunda gelişme vardır. Bu çalışmada, özellikle inşaat sektöründe kullanılan dışa bağımlılığı azaltacak, uluslararası düzeyde rekabet edebilirliği artıran ve enerji verimliliğini destekleyecek uygulamalar için yenilikçi kaplama malzemeleri geliştirilmesi amaçlanmaktadır. 33°C’de yeşil, 45°C’de siyah ve 65°C’de mavi renk değiştiren termokromik pigmentlerin tane boyutu ölçülmüş ve TG / DTA analizleri gerçekleştirilmiştir. Pigmentler USB dijital mikroskop ile incelenmiştir ve renk ölçümleri spektrofotometre kullanılarak yapılmıştır. Termokromik pigmentlerin artan ve azalan sıcaklık ile renk değişimi infrared termometre ile incelenmiştir. Karakterizasyon çalışmaları X-ışını kırınım analizi ve taramalı elektron mikroskobu analiz teknikleri ile gerçekleştirilmiştir.

Cold spray (CS) is a solid-state deposition process in which solid powders are accelerated towards the substrate via a converging/diverging nozzle. Coating deposition occurs without melting the sprayed particles. Spray particles adhere to the substrate on impact because of their high kinetic energy. For successful bonding, powder particles have to exceed a critical velocity on impact, which is dependent on the properties of the particular spray material. Different materials such as metals, ceramics, composites and polymers can be deposited using CS. CS is a novel and promising technology to obtain surface coating, offering several technological advantages over thermal spray since it utilizes kinetic energy rather than thermal energy for deposition. As a result, residual stresses, oxidation and undesired chemical reactions can be avoided. Cold spray technology has many applications in the industry. It has been developed for the protection and repair of components used in many industries. In recent years, cold spray process has been used in application fields such as repair of electronic systems, additive manufacturing, welding, brazing, surface protection, medical devices, and medical materials. This study summarizes the cold spray process by briefly reviewing the historical development, basic principles and features, adhesion mechanism and application areas of the cold spray process. [ABSTRACT FROM AUTHOR]

Copyright of Ege Üniversitesi Ziraat Fakültesi Dergisi is the property of Ege Universitesi, Ziraat Fakultesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Beef is an animal food sensitive to deterioration with short shelf-life due to its rich nutrient content. Many studies concerned with the use of edible coating are carried out to increase the shelf life of beef. In this study, it was aimed to extend the shelf life of beef using chitosan. For this purpose, the bovine meat was coated with chitosan and stored at +4 °C for 7 days. Total mesophilic aerobic bacteria, Stapylococcus aureus, Pseudomonas spp. counts and thiobarbituric acid values were analyzed. As a result, it was found that the chitosan coating reduced the TMAB, Pseudomonas spp. counts and TBARS values (P < 0.05) and inhibited all S. aureus up to day 5 of storage. According to the data obtained from this study, it has been concluded that chitosan can be used as a bio-preservative in the meat industry due to the antimicrobial and antioxidantive properties. [ABSTRACT FROM AUTHOR]

Edible films and coatings are materials which are applied to the surface of foods in a thin layer and which protects the food from the external environment. They are prepared by using polysaccharide and/or protein or by using flours of vegetable origin. In this study, protein, starch, moisture and water absorption ratios of wheat, corn, chia, teff, buckwheat and quinoa flours obtained from local market were investigated and their potential for use as an edible films and coatings were determined. The protein content of flour was 6.40-19.64%; starch ratios were found to be 2.87-71.63. Particle sizes of the flours showed variation and it was found that the flour with the finest particles was wheat flour and the flour with the highest particle size was chia flour. Water absorption values were highest for chia flour (404.03%) and lowest for wheat flour (65.15%). As a result of this study, it was concluded that these flours can be used in edible coating formula in terms of chemical and physical properties. [ABSTRACT FROM AUTHOR]

Copyright of Dicle University Journal of Engineering / Dicle Üniversitesi Mühendislik Dergisi is the property of Dicle Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Whey (PAS) is one of the most important by-products of the dairy industry. PAS, which is discharged to the environment without being evaluated and treated without causing any environmental pollution, also causes loss of valuable organic compounds in its composition by being released to nature. Today, PAS is used for various purposes. Recently, research on the use of PAS in edible films and coatings, especially on foods, has been intensified. Another advantage of using films and coatings from PAS proteins in food packaging is the improvement of the functional properties of the food used. These films slow down chemical reactions such as lipid oxidation and are viewed as a convenient means of improving food quality when used as a carrier of the antimicrobial agent. In addition, these films, which act as selective barriers for moisture and gas transfer in foods, are used as preservatives to increase the shelf life of foods. In our study, the composition of PAS, the formulation and properties of the films obtained from PAS proteins, and studies in food packaging applications were compiled. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Textiles & Engineers / Tekstil ve Mühendis is the property of Union of Chambers of Turkish Engineers & Architects, Chamber of Textile Engineers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objectives: The aim of this investigation was to develop an extended release formulation of diltiazem hydrochloride (DL) for once- and twice-daily administration, based on Eudragit (Eud) RL and RS microspheres using emulsion solvent evaporation. Materials and Methods: Formulations with different drug-polymer concentrations were produced and characterized in terms of yield, encapsulation efficiency (EE), particle size, and surface morphology. The drug release and thermal behavior of the microspheres were also investigated. Selected microspheres were then coated with Eud RS by continuous solvent evaporation, in order to modify the microspheres' properties and burst release. Results: According to the results, the EE was in the range of 56%-93% for uncoated microspheres. The mean particle size of microspheres was different from 470 to above 1000 µm, based on various formulation variables. No difference was observed between the mean size of particles prepared with Eud RL and Eud RS. Microspheres showed sustained release behavior, which was affected by the drug:polymer ratio as well as particle size. Coating the microspheres not only improved the EE values (82%-92%) but also reduced the mean dissolution rate as well as the burst release. Conclusion: Microspheres prepared with DL:Eud RL ratios of 1:3 and 1:4 showed release profiles in accordance with the USP criteria for a DL extended release product for dosing every 12 and 24 h, respectively. [ABSTRACT FROM AUTHOR]

Copyright of Dokuz Eylul University Muhendislik Faculty of Engineering Journal of Science & Engineering / Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi is the property of Dokuz Eylul Universitesi Muhendislik Fakultesi Fen ve Muhendislik Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Nii3Al intermetallic compound was coated on the ferritic stainless steel surface using the combustion method. Effects of the compacting pressure (150, 200, 250 and i300 MPa) and the sintering temperature (1100 °C) on the coated layer were investigated. Characterization of the coating layer was performed using optical microscope, SEM, XRD and EDX analyzes. As a result of the analysis, it was observed that the bonding quality between the coating layer and the base metal was good due to the diffusion. As a result of EDS analysis α Fe, Cr, Ni, Nii3Al, analiz Fe and in the XRD results, Nii3Al4, NiAl, Nii3Cr2, Ni2Ali3 phases were formed with Nii3Al and Ni. In the microhardness analysis, due to the porous structure of the coating layer, the results were lower than the base metal. However, it has been determined that the sintering temperature of 1100 °C is better for complete dissolution of semi-stable intermetallic phases. [ABSTRACT FROM AUTHOR]

In this study, according to the Superpave design method developed for the design of bituminous hot mixes, design aggregate grading was chosen for Elazığ which was chosen as the application region and its suitability was evaluated. For this purpose, B 70/100 penetration grade asphalt obtained from TÜPRAŞ refinery was selected and the physical properties of the binder and the mixing and compaction temperatures were determined. In addition, aggregate grading with a nominal maximum grain size of 12.5 mm was selected for the limestone aggregate used in the study. The consensus and source properties of the selected aggregate were determined and their suitability was determined. In order to prepare the hot mixture, three experimental aggregate mixture gradations were initially selected. Bitumen hot mixture samples were prepared with Superpave kneading compactor using this trial aggregate mixtures and asphalt binder. The physical and volumetric properties of the prepared samples were determined and compared with the Superpave specification criteria. As a result of the evaluation made, the most suitable aggregate mixture that meets the criteria was selected as design aggregate gradation. [ABSTRACT FROM AUTHOR]

Copyright of Ege Journal of Fisheries & Aquatic Sciences (EgeJFAS) / Su Ürünleri Dergisi is the property of Ege Journal of Fisheries & Aquatic Sciences (EgeJFAS) / Su Urunleri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beykent Üniversitesi Fen ve Mühendislik Bilimleri Dergisi is the property of Beykent Universitesi Fen Bilimleri Enstitusu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Anadolu University Journal of Art & Design / Sanat & Tasarım is the property of Anadolu University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Online Journal of Art & Design is the property of Online Journal of Art & Design and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Polytechnic is the property of Journal of Polytechnic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Textiles & Engineers / Tekstil ve Mühendis is the property of Union of Chambers of Turkish Engineers & Architects, Chamber of Textile Engineers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bu çalışmada; alevle toz püskürtme yöntemi kullanılarak 10Al-Cu alaşımı (RotoTec® 19850) ve 15Cr7Fe-Ni alaşım (RotoTec® 19985) tozları ile kaplanan Al5754 (Etial 53) alüminyum alaşımının aşınma davranışları incelenmiştir. Ana malzeme ve kaplama malzemeleri arasında termal genleşmeleri önlemek için Ni-Al RotoTec® 51000 esaslı ara bağlayıcı malzeme olarak kullanılmıştır. Aşınma testleri pim-on-disk sisteminde gerçekleştirilmiştir. Karşı aşındırıcı olarak 800 gridlik SiC zımpara kullanılmıştır. Kaplamaların aşınma testleri oda sıcaklığında, 0.35 ve 0.70MPa basınç altında ve 1.0m/s kayma hızında yapılmıştır. Kaplama numunelerini karakterize etmek için optik mikroskop incelemeleri yapılmıştır. Deneyler sonucunda her iki kaplama malzemesinin de aşınma davranışını geliştirdiği belirlenmiştir.

Abstract: In this study, polybenzimidazole and polybenzoxazole having high molecular weights were prepared with 3,3'-diaminobenzidine, 1,2,4,5-tetraaminobenzene or 3,3'-dihydroxybenzidine and various dihydroxamoyl chloride. The characterization of polymers was performed with the assistance of the analyses of inherent viscosity, FT-IR and the elemental analysis. Moreover, the adhesion properties and the resistance properties against corrosion were examined for the synthesized polymers. The effects upon adhesion and anticorrosion properties of polymers due to the presence of terminal functional groups (CCl=NOH, NH2) or the functional groups of main chain (-C=N-, -C=NH-, -C-O-, -S-S-, -O-) bonded to the structure of the polybenzazoles were determined. Key words: Polybenzoxazole, Polybenzimidazole, Coating. POLİBENZAZOLLERDEN ELDE EDİLEN ADHESİF VE ANTİKORROZİF KAPLAMALAR (PBI ve PBO) Özet: Bu çalışmada yüksek molekül ağırlığına sahip polibenzimidazol ve polibenzoksazoller 3,3'-diaminobenzidin, 1,2,4,5-tetraaminobenzen veya 3,3'-dihidroksibenzidin ile çeşitli dihidroksamoil klorur bilesiklerinden sentezlendi. Polimerlerin karakterizasyonu, logaritmik viskozite sayısı, elemental analiz ve FT-IR analizleri ile belirlendi. Bununla birlikte sentezlenen polimerlerin adhezyon özellikleri ve korozyona karşı dayanıklılık özellikleri incelendi. Polimerlerin adhezyon ve antikorozyon özelliklerine, polibenzazollerin yapısında bulunan asıl zincirdeki fonksiyonel grupların (-C=N-, -C=NH-, -C-O-, -S-S-, -O-) veya polimerin uc fonksiyonel gruplarının (CCl=NOH, NH2) etkileri belirlendi. Anahtar kelimeler: Polibenzoksazol, Polibenzimidazol, Kaplama