European Journal of Technic最新文献_第5页

Composition, Morphology, Optical, Thermal and Mechanical Properties of Yogurt Containers 酸奶容器的组成、形态、光学、热学和机械性能

European Journal of Technic Pub Date : 2022-11-07 DOI: 10.36222/ejt.1054357

Gizem Cihanoğlu, Merve Karabıyık, Iklima Odabasi̇, D. Balköse

{"title":"Composition, Morphology, Optical, Thermal and Mechanical Properties of Yogurt Containers","authors":"Gizem Cihanoğlu, Merve Karabıyık, Iklima Odabasi̇, D. Balköse","doi":"10.36222/ejt.1054357","DOIUrl":"https://doi.org/10.36222/ejt.1054357","url":null,"abstract":"The morphology, composition, optical, thermal and mechanical properties of two randomly selected commercial yogurt containers, container 1 and container 2 were determined using advanced analytical techniques in the present study. The container 1 which was based on polypropylene labelled as “5 “had 18.1 % CaCO3 and 1.2% TiO2. On the other hand container 2 which was based on polystyrene labelled as “6” had 1.2 % TiO2, CaCO3 and olivine. The melting point of container 1 was 166.4 oC and the glass transition point of container 2 was 99.9oC. The surface of the container 1 was smoother than the container 2 with the average surface roughness values of inside surfaces 10.3 and 19.4 nm respectively. Both containers were white in color and had very low values of light transmission. The samples had close values of tensile strength and tensile modulus. The presence of fillers made the containers had lower tensile strength and higher stiffness than their base polymers. the future recycling methods for yogurt packing materials. The containers labelled as “5 “and “6” should be collected separately from the source since they will have different processes for reuse.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"570 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132137596","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}

引用次数: 0

Development Of the Software Program That Can Account the Combustion, Emission and Engine Performance Values of Internal Combustion Engines 内燃机燃烧、排放及发动机性能数值计算软件的开发

European Journal of Technic Pub Date : 2022-10-10 DOI: 10.36222/ejt.1147020

Ozan Yazar, B. Demir

{"title":"Development Of the Software Program That Can Account the Combustion, Emission and Engine Performance Values of Internal Combustion Engines","authors":"Ozan Yazar, B. Demir","doi":"10.36222/ejt.1147020","DOIUrl":"https://doi.org/10.36222/ejt.1147020","url":null,"abstract":"In this study, a simulation program was developed that can calculate combustion, emission and engine performance values depended on variable parameters for internal combustion engines by mathematical modelling. This simulation program was created with the Java programming language. Graphical user interface (GUI) was used in this simulation program. With the simulation program created, it can calculate many values such as in-cylinder pressure, temperature, gas amounts generated as a result of combustion, power, torque, specific fuel consumption, both in spark ignition engines and compression ignition engines. This simulation program presents the results both numerically and graphically. The calculations are obtained at every crankshaft angle at 0.25 ˚ intervals. With this simulation program, analyses were made in different excess air coefficients (0.9-1-1.1-1.2) and the effects of in-cylinder pressure, temperature, mass ratios of gas components and engine performance values were compared. According to the simulation results, as the excess air coefficient increases, the temperature and pressure values decrease. 〖CO〗_2 and NO mass ratios decrease as the excess air coefficient increases in case the excess air coefficient is greater than 1. H_2 O mass ratio increased as the excess air coefficient increased.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125301183","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}

引用次数: 0

Investigation of Mechanical Properties of Layered Composites Formed from Glass, Carbon and Aramid Fibers and Aluminum Plates 玻璃、碳、芳纶和铝板层状复合材料的力学性能研究

European Journal of Technic Pub Date : 2022-09-20 DOI: 10.36222/ejt.1122360

İbrahim Bi̇li̇z, Y. H. Çelik

{"title":"Investigation of Mechanical Properties of Layered Composites Formed from Glass, Carbon and Aramid Fibers and Aluminum Plates","authors":"İbrahim Bi̇li̇z, Y. H. Çelik","doi":"10.36222/ejt.1122360","DOIUrl":"https://doi.org/10.36222/ejt.1122360","url":null,"abstract":"Technological developments and differences in application areas increase the importance of laminated composites. Laminated composites with complex properties exhibit features such as high strength, high corrosion and thermal resistance, low specific gravity, resistance to environmental conditions. These properties generally reflect components that make up laminated composite. In this study, effects of reinforcements on mechanical properties of laminated composites were investigated. In production of laminated composites, aluminum 5754 is used for metal layers, and aramid, glass and carbon fibers are used for fiber reinforcements. Epoxy was also preferred as resin. First of all, the resin was applied on the cleaned aluminum plate and the aramid fiber was added on it. By continuing the processes in this way, Arall laminated composite consisting of five layers was obtained. Similar processes were applied to carbon fiber and glass fiber materials, and Carall and Glare laminated composites were produced, respectively. In addition, by subjecting the fiber layers to a combination among themselves, Ar-Carall, Ar-Glare and Car-Glare laminated composites were produced. The produced laminated composites were subjected to tensile and bending tests and their strengths were compared. As a result of the experiments, the highest tensile and bending strength was obtained from the Carall laminated composite. The strength of the Ar-Carall and the Car-Glare laminated hybrid composites containing carbon fiber were better than the Arall and the Glare laminated composites.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129203887","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}

引用次数: 0

IoT Based Home Automation System using a REST API Architecture 使用REST API架构的基于物联网的家庭自动化系统

European Journal of Technic Pub Date : 2022-08-18 DOI: 10.36222/ejt.1018131

Z. Oo, Theint Win Lai, Aung Moe

引用次数: 0

Electrode Area Analysis of EEG Signals Received from Schizophrenic Individuals 精神分裂症患者脑电信号的电极面积分析

European Journal of Technic Pub Date : 2022-08-09 DOI: 10.36222/ejt.1132451

Ö. Akgün

{"title":"Electrode Area Analysis of EEG Signals Received from Schizophrenic Individuals","authors":"Ö. Akgün","doi":"10.36222/ejt.1132451","DOIUrl":"https://doi.org/10.36222/ejt.1132451","url":null,"abstract":"It is very difficult to distinguish between healthy and schizophrenic individuals based on raw data. However, with the analyzes made, the separation of healthy and sick individuals from each other has become quite evident. In the study, EEG signals were obtained by means of electrodes from the anterior region, middle and posterior regions of the brain, and analyzed according to their positions. Apart from the time-amplitude graph, PSD and STFT analyzes have also performed the analyzes and the results were compared. As a result of this study, the results of PSD analysis are quite successful in distinguishing between healthy and schizophrenic individuals. In this sense, this method includes features that can be used by physicians for diagnostic purposes. In addition, the analysis results are compatible with each other and the results are meaningful. In particular, the results of PSD analyses give very distinctive results that can be used for diagnosis. In addition, the results of the analyzes made with the STFT method are also compatible with the PSD analyses, where healthy individuals have a trend of around 10 Hz, and individuals diagnosed with schizophrenia have a trend of up to 20 Hz.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115480757","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}

引用次数: 0

An experimental study verification of production raw algae oil to biodiesel by industry 4.0 工业4.0生产生藻油制备生物柴油的实验研究验证

European Journal of Technic Pub Date : 2022-07-04 DOI: 10.36222/ejt.1055633

Fevzi Yaşar, C. Koyunoğlu

{"title":"An experimental study verification of production raw algae oil to biodiesel by industry 4.0","authors":"Fevzi Yaşar, C. Koyunoğlu","doi":"10.36222/ejt.1055633","DOIUrl":"https://doi.org/10.36222/ejt.1055633","url":null,"abstract":"Alglerin baca gazında karbondioksit kullanılması sonucu genel olarak biyoyakıtın fotobiyoreaktörlerde veya kabarcık yataklı biyoreaktörlerde kullanıldığı ve fotosentez prensibi olduğu bilinmektedir. Yosun büyümesi sırasında, yosun yağının esterleşme reaksiyonundan hemen sonra ekstraksiyon işlemi sonlandırılmalıdır. Günümüzde üretilen bu biyodizelin geleneksel yakıtlarla birçok yönden yaygınlaşması kaçınılmaz bir gerçektir. Bu çalışmada, alglerdeki trigliserit yağlarını serbest bırakmak için bir reaksiyon kabında deneysel olarak metanol kullanılmıştır. Karbon dioksit gazının transesterifikasyon reaksiyonu ile etkileşimi, hesaplamalı akışkanlar dinamiği kullanılarak modellenmiştir. Buhar-sıvı-sıvı faz dengesini sağlamak için mikro kabarcıkların kullanımını tanıtıyoruz. Kullandığımız Ansys simülasyon programı, düşük sıcaklık ve ara basınç değerlerinde metanolün trigliserit fazında bozunması gibi adımları stabilize etmek için biyodizel üretim hızı hesaplaması için önemli bir araçtır ancak karıştırma modülü bu süreçleri kolayca bulmamıza yardımcı olur. Basit bir deneyin hesaplamalı akışkanlar dinamiğini kullanan bu çalışma, deneysel ve ardından en son endüstriyel tesis modelleme modelini gerçek uygulamalardan önce gerçekçi ve ideal koşullar altında yorumlamamızı sağlar. Bu ders endüstriyel ölçekteki Ar-Ge çalışmalarına ışık tutacak metodolojinin uygulanabilirliğini sağlamayı amaçlamaktadır. Ayrıca ideal koşulları belirlemek ve alg tipini değiştirmek için bu çalışmanın devamında yeni reaktör geometrileri denenebilir.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"636 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115110296","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}

引用次数: 0

Finite Element Analysis of Safety Pin in Snowplow Equipment 扫雪机安全销的有限元分析

European Journal of Technic Pub Date : 2022-07-04 DOI: 10.36222/ejt.1086422

Mehmet Şükrü Adin, R. K. Ergün, H. Adin

引用次数: 2

Investigation of the Gelation Potential of Low Molecular Weight Organogelator 低分子量有机凝胶的凝胶势研究

European Journal of Technic Pub Date : 2022-06-30 DOI: 10.36222/ejt.1106639

Deniz BARIŞ CEBE

引用次数: 0

Effects of Different Splicing Methods on Conveyor Belt Strength 不同拼接方式对输送带强度的影响

European Journal of Technic Pub Date : 2022-06-30 DOI: 10.36222/ejt.1086915

Savaş Ki̇renli̇, Recep Demirsöz

{"title":"Effects of Different Splicing Methods on Conveyor Belt Strength","authors":"Savaş Ki̇renli̇, Recep Demirsöz","doi":"10.36222/ejt.1086915","DOIUrl":"https://doi.org/10.36222/ejt.1086915","url":null,"abstract":"Conveyor belts are mechanisms that provide continuous transfer of any product from one place to another. Belt conveyor systems are at the forefront of the systems that minimize the need for people in the transportation of materials. In this way, it is inevitable to achieve both time and cost savings. With the continuous development of today's technology, it develops in the improvements in belt conveyor systems. Owing to the innovations and improvements in the conveyor belts, it becomes possible to minimize the maintenance, repair and undesired stoppages of the facilities. In this study, specimens extracted from a conveyor belt with a width of 800 mm, with a tensile strength of 45 N/mm2, 4 layers of polyester-polyamide blend cord fabric, 6 mm rubber bottom coating thickness and 3 mm rubber top coating thickness were used. The specimens were taken in three different ways (from the unspliced belt, from the mechanically spliced belt and from the vulcanized belt). The specimens taken from the spliced conveyor belts were subjected to the tensile test. The strength values of the belt specimens, from high to low, are in the form of unspliced belt, vulcanized belt and mechanically spliced belt. Among these applications, it has been observed that the mechanical splicing method is easier in terms of application than other splicing methods. It has been observed that the time required for maintenance and repair of the mechanical splicing method is between 1 and 2 hours, and the time required for the splicing method with vulcanization is between 6 and 8 hours. It has been understood that the mechanical method is advantageous over the vulcanization method in terms of the application time of the belt splicing method.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116387856","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}

引用次数: 0

The Effects of Reinforcement with TaC on the Microstructure and Wear Properties of Lamellar Graphite Cast Irons TaC增强对层状石墨铸铁组织和磨损性能的影响

European Journal of Technic Pub Date : 2022-06-30 DOI: 10.36222/ejt.1088994

R. Yakut, Ömer Çi̇ftçi̇

{"title":"The Effects of Reinforcement with TaC on the Microstructure and Wear Properties of Lamellar Graphite Cast Irons","authors":"R. Yakut, Ömer Çi̇ftçi̇","doi":"10.36222/ejt.1088994","DOIUrl":"https://doi.org/10.36222/ejt.1088994","url":null,"abstract":"Lamellar graphite cast irons are prevalently used in several industrial applications, especially the automotive industry, due to their high compressive strength, high thermal conductivity, high castability, vibration damping ability, good mechanical strength, friction and wear resistance, better machinability than other cast irons, and good mold filling. In this study, changes in the wear volumes, wear rates, wear track profiles, and friction coefficients of lamellar graphite cast irons in which Tantalum Carbide (TaC) was added at different reinforcement ratios (A (0.025 wt.%), B (0.155 wt.%), C (0.285 wt.%), and K (unreinforced, 0 wt.%)) were investigated. Additionally, by examining the wear surfaces of the samples using a scanning electron microscope (SEM), their wear mechanisms were determined. As a result of the analyses, it was determined that different reinforcement ratios did not have a noticeable effect on wear track profiles under a load of 1 N. On the other hand, different reinforcement ratios showed an effect on wear track profiles under loads of 3 N and 5 N. The most perceptible wear track profile was formed in Sample C under 5 N. It was observed that increased load values resulted in increased wear volumes, but the increases in the wear rates of the samples were not significant, and the numerical values were close to each other. The highest wear volumes were determined in the reinforced C sample and the unreinforced K sample under 5 N load. As the magnitude of the load that was applied increased, the friction coefficients of Samples B and C decreased, but the friction coefficients of Samples K and A increased.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126625683","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}

引用次数: 1