7th International Students Science Congress Proceedings Book最新文献

{"title":"Torque Vectoring on Front Wheel Drive Vehicle with Hub Motors","authors":"Abdulhamid Han Doğru, Buse Yildirim, Rafet Can Umutlu","doi":"10.52460/issc.2023.036","DOIUrl":"https://doi.org/10.52460/issc.2023.036","url":null,"abstract":"Nowadays electric vehicles (EVs) which are equivalent to fossil fuel vehicles and run on more environmentally friendly fuels, have become popular in the automotive industry. So EVs have very common use areas in that field. Driving stability and safety are also of great importance in these widely used vehicles. In this sense, torque vectoring (TV) appears as the most modern approach.TV control systems provide the distribution of torque to the wheels by the effect of the yaw moment. The application of torque vectoring in vehicles reduces power losses in the motor driver and the vehicle’s power consumption. Using efficient torque vectoring algorithms for electric vehicles, this research describes existing and emerging vehicle technology related to yaw moment management and traction control. The article provides the allocation of wheel torques for a two-wheel drive all electric vehicle with individually controlled engines. Lateral dynamics and moment dynamics were used in the construction of this torque allocation. In addition, the lateral velocity and yaw rate of the vehicle related to the specified inputs were calculated from the nonlinear front wheel drive vehicle model which was designed by MATLAB. The reference yaw rate and the yaw rate, which is the output of the system, were compared and the error in between and the Proportional Integral Derivative (PID) controller were fed. The hub motor, which is widely used in electric vehicles and is easy to control, was used as the engine in the system. While increasing the control on this vehicle, the designed torque vectoring system also increased the stability and driving performance during turning.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115109735","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}

{"title":"Experimental Analysis of Auxetic Structures with Different Cell Parameters under Uniaxial Compression","authors":"Dilek Atilla Yolcu, Fatih İlgen, B. O. Baba","doi":"10.52460/issc.2023.039","DOIUrl":"https://doi.org/10.52460/issc.2023.039","url":null,"abstract":"The structures at varying operating conditions are exposed to loads that can lead to damage. One of the structural loads that cause damage is compression load. However, such loading causes different effects on auxetic structures having the negative Poisson's ratio. Since these structures contract under compressive loads, they exhibit higher indentation resistance than conventional cellular structures. In this study, the effects of changing the ligament length and ligament angle in auxetic re-entrant structures under uniaxial compressive loading were experimentally investigated. The auxetic re-entrant structures were fabricated from PLA material by a three-dimensional printer using fused deposition method. The tests were performed under quasi-static uniaxial compression load and the test was continued until the indentation point. As a result of the tests, shrinkage of the cross-section was observed, and it was revealed that there is an inverse relationship between the ligament length and the maximum compressive load. In addition, it was clearly observed that the maximum compression load increased as the angle increased for the maximum ligament length.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129190431","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}

{"title":"Globalization and the Rise of Individualism in Algeria from an Architectural","authors":"Nadjla Fellahi","doi":"10.52460/issc.2023.003","DOIUrl":"https://doi.org/10.52460/issc.2023.003","url":null,"abstract":"In an increasingly globalized world, where boundaries are blurred and connections strengthened, the field of architecture finds itself deeply influenced by this phenomenon. Algeria, like many other regions, has undergone urban and architectural transformations in recent decades, making the study of globalization's impacts on architecture a crucial endeavour. This qualitative research aims to evaluate the specific influences of globalization on the architectural landscape of Batna City in Algeria. Utilizing secondary data and observations, this study investigates the rise of individualism and detached houses in Batna City, which have witnessed notable architectural variations in recent decades. By analysing the underlying reasons behind the production of detached house samples and their connection with the rise of individualism, this research sheds light on the intersecting economic, political, and cultural forces of globalization that shape the built environment in Batna. The findings of this study reveal that globalization, along with economic and political shifts, urban expansion, and technological advancements, has contributed to the proliferation of individualism in Batna. It becomes evident that individualism is not a recent phenomenon but rather a trend that emerged shortly after independence and deepened in the post-2000s era. The manifestation of individualism is highly influenced by the forces of globalization and the media's portrayal of Western culture. This research holds significance for the field of architecture in Algeria, providing valuable insights into the impacts of globalization on architectural trends and the built environment. By understanding these influences, architects and policymakers can better navigate the challenges and opportunities presented by globalization, ensuring the continued development of culturally sensitive and contextually relevant architectural designs.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123079311","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}

{"title":"Impact of Cable Pre-Tension over the End Point Vibrations for Beam Systems","authors":"Uğur Alphan Ortaçeşme, M. Akdağ","doi":"10.52460/issc.2023.044","DOIUrl":"https://doi.org/10.52460/issc.2023.044","url":null,"abstract":"Beam systems are used in many areas today. They are preferred because of their light weight, high efficiency, high operating speed and low cost, but their excessive vibration causes problems. In order to prevent these vibrations, the rigidity of the system must be high. At this point, the use of cables is of great importance. Cable tensions affect the rigidity of the system. Cabled structures are preferred because lightweight stiffening, easy deployability, and shape control capability. In addition, they are also used in large-sized structures, as they can transmit their effects over long distances. In this study, a linear velocity applied to a flexible beam is given, trapezoidal velocity inputs are given and various acceleration conditions are considered. In the model, natural frequencies are investigated for cableless and cabled situations with different pre-tension values applied. The changes in the endpoint vibrations were investigated by using the transient analysis method via ANSYS workbench. Thus, the effectiveness of using cable pre-tension in beam systems has been demonstrated.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128623918","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}

{"title":"Bazı Alternatif Yem Kaynaklarının Hayvan Beslemede Kullanım Olanakları","authors":"E. Doğan, Figen Kırkpınar","doi":"10.52460/issc.2023.010","DOIUrl":"https://doi.org/10.52460/issc.2023.010","url":null,"abstract":"Hayvancılık endüstrisinde işletme maliyetinin %60-80'ini oluşturan yem giderleri maliyet ve sürdürülebilir üretim bakımından önemlidir. Son yıllarda özellikle hayvan beslemede yaygın olarak kullanılan mısır, soya ve diğer yem hammaddelerinin fiyat artış̧eğilimi göstermesi nedeniyle alternatif yem kaynaklarına olan ilgi giderek artmaktadır. Gelecekte yem hammadde stoklarının yetersizliği ve fiyatlarının yükselmesi beklenen bir durumdur. Bu nedenle hayvan beslemede alternatif yem kaynakları olarak kullanılabilecek hammaddelerin incelenmesi gerekmektedir. Alternatif yem kaynakları arasında ülkemizde faaliyet gösteren çeşitli gıda ve tarım firmalarından yan ürünler olarak elde edilen fındık küspesi, fıstık küspesi, bisküvi-gofret kırığı, yüksek proteinli kurutulmuş çözünürlü damıtık tahıl (DDGS), kuru maya, pirinç kepeği, zeytin küspesi, mısır özü küspesi, keten tohumu küspesi, mercimek kırığı, mercimek kepeği, pirinç kırığı, bulgur kırığı, nohut kırığı ve yüksek proteinli ayçiçek tohumu küspesi sayılabilir. Bu makalede söz konusu alternatif yem kaynaklarının kuru madde, ham kül, ham yağ, ham protein,nişasta, şeker, ham selüloz, nötr deterjan lif, asit deterjan lif ve asit deterjan lignin içerikleri ve hayvan beslemede potansiyel yem değerleri ile ilgili araştırmaların sonuçları incelenecektir. Sürdürülebilir hayvan besleme ve yem maliyetlerinin azaltılması perspektifleri ile alternatif bazı yem hammaddelerinin hayvan beslemede kullanım olanakları, yaygın olarak kullanılan mısır, buğday, arpa, soya fasulyesi ve ayçiçeği tohumu küspesi gibi yem kaynakları ile karşılaştırılarak irdelenecektir.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121394039","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}

{"title":"Plasticity Based Nonlinear Finite Element Analysis of Steel Fiber Reinforced Concrete Beams","authors":"Marwan Al Saman, M. A. Çankaya","doi":"10.52460/issc.2023.013","DOIUrl":"https://doi.org/10.52460/issc.2023.013","url":null,"abstract":"In this study, a blind simulation was carried out to predict the response of full-scale steel fiber-reinforced concrete beams (SFRC) subjected to four-point bending. For this purpose, an experimental study was selected from the literature. Bending tests of two beam specimens with prismatic geometry of 300x500x4400 and 150x250x2000 mm were simulated using the non-linear finite element (NLFE) code ABAQUS/Explicit [1]. In the full-scale numerical models, concrete, and steel rebars were discretized in space by eight-node reduced integration linear brick elements (C3D8R) and linear beam elements (B31), respectively. Additionally, concrete damage plasticity (CDP) constitutive model was adopted for concrete and the stress-strain relationship of steel reinforcements was established based on the piecewise functions given in Turkish Building Earthquake Code (TBEC) 2018 [2]. The embedded element technique was used to establish a perfect bond between concrete brick elements and steel reinforcement beam elements. Therefore, concrete elements were selected to be host elements while steel reinforcement was embedded in the host material. Support conditions and loading plates were explicitly modeled using eight-node brick element (C3D8R) as rectangular prisms. The interaction between the plates and beam specimen was provided by tie constraint. Results from the numerical analyses included load-displacement curve and crack pattern variables which are considered to verify the experimental results.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131262918","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}

{"title":"Numerical Solutions of Hyperbolic Partial Differential Equations","authors":"Nurcan Baykuş Savaşaneril","doi":"10.52460/issc.2023.033","DOIUrl":"https://doi.org/10.52460/issc.2023.033","url":null,"abstract":"Hyperbolic partial differential equations are frequently referenced in modeling real-world problems in mathematics and engineering. In this study, a matrix method based on collocation points and Taylor polynomials is presented to obtain the approximate solution of the hyperbolic partial differential equation. This technique reduces the solution of the mentioned hyperbolic partial differential equation under initial and boundary conditions to the solution of a matrix equation whose Taylor coefficients are unknown. Thus, the approximate solution is obtained in terms of Taylor polynomials. An example is provided to showcase the practical application of the technique. In addition, the numerical results obtained using these collocation points were compared with the table and figure. All numerical calculations were made on the computer using a program written in WOLFRAM MATHEMATICA 13.0.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131695064","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}

{"title":"New Polygonal Numbers Identity by using Animation Proof Technique","authors":"Ü. Sarp","doi":"10.52460/issc.2023.034","DOIUrl":"https://doi.org/10.52460/issc.2023.034","url":null,"abstract":"Polygonal numbers are a special set of numbers that arise in geometry, specifically in the study of polygon shapes. These numbers have a rich history in mathematics and continue to be an area of active research and investigation in various mathematical disciplines. In this study, a brief introduction to the two-dimensional figurated numbers known as polygonal numbers is provided. Then a new polygonal numbers theorem about them is proved by using animation proof technique.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126470797","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}

{"title":"Review of Patents, Utility Models and Research for Green Construction Materials in Kenya","authors":"C. Ngandu","doi":"10.52460/issc.2023.014","DOIUrl":"https://doi.org/10.52460/issc.2023.014","url":null,"abstract":"There is need for the construction industry to adopt green approaches, to counter increase in demand, while promoting sustainability. Intellectual property rights (IPR) provide temporal territorial exclusivity- with some limitation. Hence, innovators and researchers in green construction materials (GCM) could take advantage of IPR in GCM, to promote research, attract research and development (R&D) funds and benefit commercially. The study can aid in promotion of IPR economic benefits in GCM, through status quo and challenges review. This review study was based on 182 Kenya Industrial Property Institute (KIPI) accessible journals between 2003 and 2021, on patents or utility models applications/grants perceived as GCM. There was a low level for GCM patents and utility models application/grants in Kenya. Only 10 results, in Kenya accessible industrial/intellectual property (IP) journals. This was possibly due to challenges, as reviewed herein. The study also identified some other GCM researches, for Kenya, but no reflection to advance to patent or utility models application. This study recommends for further research to determine reasons impending GCM researchers from applying for IP protection, addressing bottlenecks and promoting education and awareness on IPR. Efforts should be geared towardsenhancement of patent protection and valuation, so as to attraction of funds in GCM research and innovation and increase economic benefit that comes with the right monopoly, licensing or intangible assets sales.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133477320","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}

{"title":"Production of New Generation Packaging Materials with Utilization of Food Wastes","authors":"P. Özkaya, Dilay Yıldız, M. Uyarcan, Seval Dağbağlı","doi":"10.52460/issc.2023.018","DOIUrl":"https://doi.org/10.52460/issc.2023.018","url":null,"abstract":"Food packaging is considered as important as food production due to being determinant on the quality and safety of food, in addition to informing customers about the product details (shelf life, ingredients, presence of allergens, etc.). Hence, packaging technology has also been progressing together with food production techniques. Recently, environmentalist approaches have pushed the researchers to green technologies and materials within the production of innovative food packages. In this frame, selection of green and renewable materials can be considered as the first step for such kind of a production. Food wastes and/or by-products are claimed to be great choice for both waste management and reduction of cost. For this purpose, there exist a wide variety of food wastes that can be originated from fruit and vegetables (peels, seeds, hulls, juice, etc.), whey, molasses and so on. Production methods can also vary, such as being based on a chemical (e.g., production of chitosan) or biotechnological process (e.g., bacterial cellulose production as a packaging material ingredient). As a result, organic based packaging materials are obtained and that kind of production has also been investigated in the concept of “bioplastics”. Production of bioplastic packaging materials generally includes particular steps that can be aligned as pre-treatment of the food waste, main production step (extraction, alkaline treatment, etc.) via a selected method and the addition of a plasticizer to form an appropriate film. In biotechnological production applications, food wastes and by-products are generally utilized as a carbon source (substrate) with specific additives and the formation of necessary conditions for a microbial process, while parameters of the process, yield and purity of the product depend on the production itself. These packaging materials are mostly claimed to be promising alternatives with adequate physical and thermo-mechanical properties, as well as some extra functions such as gaining antimicrobial, antioxidant character with good gas barrier properties for a wide spectrum of food products. This study aims to present a general look on those new generation packaging materials with utilization of food wastes.","PeriodicalId":138273,"journal":{"name":"7th International Students Science Congress Proceedings Book","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130261688","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}