ARCENG (INTERNATIONAL JOURNAL OF ARCHITECTURE AND ENGINEERING) ISSN: 2822-6895

Ranking Teams in American Football through Total Enumeration

Mehmet Miman — 2024-12-20

The American National Football League (NFL) stands as a significant sporting event with profound economic and social implications. Due to the physically demanding nature of the sport and the associated risks to player health, a full round-robin play format is not feasible within the league. Therefore, achieving fair and merit-based rankings of teams is imperative. This paper proposes a total enumeration approach as a precise solution to the ranking formulation put forth by Cassady et al., despite the NP-hard nature of the quadratic assignment problem inherent in the mathematical model. Total enumeration not only furnishes an exact solution for leagues with a small number of teams but also serves as a benchmark for evaluating the efficacy of heuristic methods for larger-scale problems. The implementation of the total enumeration algorithm in VBA facilitates performance analysis, with its efficiency assessed for a league comprising nine teams through statistical modeling using the JMP software package. Future research avenues include the incorporation of pruning strategies inspired by the quadratic assignment problem literature and the exploration of heuristic methods for practical league applications. Additionally, the development of a hypothetical, probabilistic game offers an experimental framework to assess team rankings, enhancing our understanding of competitive dynamics within the NFL.

INVESTIGATION OF THE FLEXURAL STRENGTH OF COMPOSITES WITH DIFFERENT RATIOS OF CHOPPED CARBON FIBER REINFORCEMENT

İbrahim Demirci — 2024-12-20

Composite materials are widely used in high-technology applications due to their properties such as high strength and lightweight. Particularly, epoxy matrix materials are employed in structural applications requiring high strength. This creates a need to enhance the mechanical properties of epoxy matrix materials. Additives introduced into the epoxy matrix lead to varying mechanical behaviors in composite materials.

The addition of chopped carbon fiber reinforcement to the epoxy matrix is an effective method. Determining the optimal additive ratios while considering fiber dimensions significantly impacts the flexural strength of the epoxy matrix material.

In this study, chopped carbon fibers were added to an epoxy matrix in weight fractions of 0%, 0.5%, 1.5%, and 3%, and three-point bending tests were conducted. After the tests, microscopic images of the fracture regions were obtained, and damage analysis was performed.

This study aims to investigate the effects of chopped carbon fibers on the flexural behavior of epoxy matrix materials, with the expectation of contributing to the development of composite materials.

SOLAR PANEL

Ergin ĞAYA — 2024-12-20

Nowadays, the use of solar panels is becoming increasingly common. Solar panel communication, exchange of information and transfer of experiences for users and sellers Lack of a communication network is a very important problem. For this reasonOur project is a web-based website for solar panel users, sellers and solar farms. It aims to create an interactive map and navigation platform. Sun To increase the interaction between stakeholders operating in the field of energy, website to facilitate exchange and promote sustainable energy use.A based “Solar Panel Digital Network Map” has been developed. The map also allows users to information and information on solar energy issues by enabling them to communicate with each other. It has the feature of increasing experience sharing. Method in the developed web-based map Engineering design process and stages were used. First of all, the user needs and expectations identified and location markers on the interactive map has been added. These pointers are for those who manufacture, sell and use solar panels or It has been prepared to include information about companies. To the pointers, photo of the panel, Details such as contact information, technical information of the panel and electricity usage status has been placed. Also, on the pictures used on the map, the panels are in the houses. augmented view in 3D showing how it is used in gardens and solar farms Reality support is provided.

NÜKLEER REAKTÖR ÇEŞİTLERİNDE KULLANILAN MALZEMELERİN İNCELENMESİ: KAYNAR SU VE BASINÇLI SU REAKTÖRLERİ

TUBA DEMİREL — 2024-12-20

This review study examines the significance of materials used in Boiling Water Reactors (BWR) and Pressurized Water Reactors (PWR) in terms of safety and efficiency. While nuclear energy offers advantages such as low carbon emissions in electricity generation, it also involves risks such as radioactive waste management. Material selection in BWR and PWR reactors is made considering factors such as resistance to high temperatures and pressure, neutron moderation and absorption properties, as well as environmental impacts. Concrete and steel are used for radiation shielding and structural durability.

Engineering analyses, such as the Finite Element Method, are employed to optimize the performance of materials in the design of these reactors, ensuring safe and long-lasting operation. The study also explores the materials to be used in nuclear power plants planned in Turkey. It comprehensively addresses the importance of various materials and engineering methods used in nuclear power plants in terms of safety, efficiency, and environmental impact.

EFFECT OF POLYPROPYLENE FIBER ON THE TENSILE PROPERTIES AND MICROSTRUCTURAL BEHAVIOR OF POLYESTER COMPOSITES

İbrahim Demirci — 2024-12-20

In this study, polypropylene (PP) was added to polyester material, which is widely used in the industry and can also be utilized as a matrix material, in chopped weight fractions of 0%, 0.25%, 0.5%, and 0.75% to improve its mechanical performance. Tensile tests were conducted to determine the optimal additive ratio. The experimental results revealed that the best additive ratio was 0.5% by weight of PP in the polyester material. This ratio formed a good interface with the polyester matrix, thereby enhancing its tensile strength. On the other hand, the 0.75% additive ratio caused significant agglomeration issues in the polyester material, leading to a reduction in its mechanical strength.

Experimental analyses were extended by obtaining microscopic images after the tensile tests, and damage analyses were performed based on these images. The microscopy results showed a detailed examination of the distribution of chopped PP additives within the polyester matrix. It was determined that the most homogeneous structure was achieved in polyester composites with 0.5% by weight PP.

This study demonstrates that low-cost and lightweight additive materials like polypropylene can enhance the performance of thermoplastic matrices such as polyester when used in appropriate ratios. However, it highlights that microstructural issues like agglomeration observed at higher additive ratios can adversely affect material performance.