INTERNATIONAL JOURNAL OF NEW HORIZONS IN THE SCIENCES

New Approaches in Time Series Analysis: Health Data Application

2023-06-07T05:41:18+00:00

It is important to analyze and interpret health data correctly. In particular, data analysis methods can make future predictions with statistical methods while also profiling the data. Estimation of the number of patients, especially in the field of health, is important for the hospital to provide quality health care to the patient and to ensure patient and health personnel satisfaction.

In this study, a monthly data set between 2010 and 2021 was simulated over the number of patients admitted to the emergency department of a state hospital in İzmir between 2020-2021 and the number of patients was estimated by time series methods. The exponential smoothing method, which is frequently used in the literature, and the Ata methods, which is a new approach, were used for modeling. Performance comparisons were made according to the mean absolute percentage error (MAPE), mean absolute scaled error (MASE) and mean absolute error (MAE) criteria, and it was determined that Ata(1,0,1)(A,N,A) method, which is a new approach in the time series, gave better results at the end of the study.

Investigation Of Usage Of Zeolite In Lubrication Industry

2023-07-06T11:38:54+00:00

Zeolites are materials that can be produced naturally and/or synthetically with a wide common usage area. There are different types of zeolites according to their usage areas and sizes. Greases are generally classified according to their soap types. Although, it is necessary to add load resistance and wear improving additives to the formulation of most grease products when they are operated under heavy loads in their usage conditions. In this study, the potential of clinoptilolite type zeolites to be applied as solid lubricants was investigated. In order to investigate the effect of particle size on solid lubricant performance of clinoptilolite zeolites, 10 µm, 40 µm, 100 µm and 700 µm sized zeolites were selected and used. The performance characteristics of clinoptilolite type zeolites in lithium soap grease products when used as load resistance and wear improving additives were investigated. In addition, the effect of size on the anti-wear and load resistance performances of clinoptilolite type zeolites in lithium soap greases was investigated and detailed results were reported.

Soil And Building Interaction Under Earthquake Loads

2023-07-06T11:39:37+00:00

Soil-building interaction is an important factor to reduce the damage of structures under various dynamic effects. This interaction refers to the effect of dynamic properties of the ground such as seismic wave propagation, dispersion, reflection and absorption on the seismic performance of the structure. Therefore, it is of great importance to consider the soil-foundation interaction during building design and construction. Soil-foundation interaction depends on many factors that determine how structures will behave under earthquake loads. These factors include building material, building geometry, soil properties, selected foundation system and earthquake loads. The influence of these factors is taken into account during the design and construction of structures and the seismic performance of the structure is improved by taking appropriate measures. Local soil effects play an important role in earthquake resistant building design. For example, in the 2023 Kahramanmaras earthquake of magnitude 7.7 and 7.6, buildings were severely damaged due to soil. As a result of the examination of the damaged buildings, it was observed that the soil-foundation-structure relationship was not established properly. One of the most prominent features of the collapsed buildings is the low bearing capacity of the soils on which the foundations sit. Within the scope of this study, how the soil type, soil structure and the properties of the selected foundation system affect the behaviour of the structure is investigated. By considering soil-structure interaction, how the structure will behave on the appropriate soil and determination of the foundation system suitable for the soil are emphasised. The foundation system of the building is selected by considering the soil classes and the requirements of the 2018 Turkey Building Earthquake Code are taken into consideration. A sample building modelling was carried out by making calculations and simulations were made in IDECAD programme. In this way, it is aimed to reveal the relationship between the soil and the structure in a healthy way.

Optimization of Microresistor Beam Performance Using COMSOL Multiphysics and Taguchi Method

2023-07-06T11:40:26+00:00

Microresistor beams are crucial components in microelectromechanical systems (MEMS), with broad applications spanning from sensors to microactuators. Their performance is significantly influenced by their design and material properties, thus necessitating an effective optimization strategy. This study proposes a comprehensive approach to the optimization of microresistor beam performance using COMSOL Multiphysics and the Taguchi method. We utilized COMSOL Multiphysics, a powerful finite element analysis tool, to model and simulate the microresistor beam's behavior under a range of conditions. Through COMSOL, we investigated the effects of various design, material and operational parameters, including applied voltage, heat sink temperature and heat transfer coefficient, on beam's performance. The simulations allowed for a nuanced understanding of the complex interplay between these parameters and their impact on the beam's mechanical and electrical characteristics. The Taguchi method, a statistical design of experiments technique, was then employed to optimize these design parameters. By setting up orthogonal arrays, we could systematically explore the design space and identify the optimal combination of parameters that yielded maximum performance and resilience. In addition, the Taguchi method helped in minimizing the undesirable effects of noise factors, enhancing the robustness of the design. The findings of this study highlight the potential of integrating finite element modeling with the statistical design of experiments for the optimization of MEMS components. Moreover, the study offers a replicable and scalable model that can be employed in the optimization of other MEMS components.Although the focus of this study was on microresistor beams, the methodologies and insights gained are applicable to a wide array of microscale devices. Future research could adapt this approach for other MEMS components and explore its potential in different operational environments. In conclusion, this study presents a novel approach to the optimization of microresistor beams, contributing to the growing body of literature on the design and optimization of MEMS. By coupling finite element modeling with the statistical design of experiments, we offer a robust, efficient, and reliable path to the development of high-performance MEMS.

"Aserola" in The Food Industry

2023-07-10T16:28:10+00:00

In this study, Acerola (Malpighia emarginata DC.) The rich components of Barbados cherries, their use and functionality in the food industry have been investigated. Acerola (Malpighia emarginata DC.) is a rich source of vitamin C as well as a plant rich in phytochemicals such as karetonaid and polyphenols. This plant, which is in the super fruit category, has taken its place in the raw material category with high added value, which can meet consumer demand and make a difference with its use in the food industry. The vitamin C content of acerola is about 50-100 times higher than other fruits known as sources of vitamin C (such as oranges, lemons, strawberries). In addition to being consumed fresh, Acerola can also be consumed in the form of juice, puree, extract and powder. Due to its high antioxidant properties, it is used not only in the food industry but also in pharmaceutical products. This supports the magnitude of the use potential of the Acerola plant. Despite its rich content and effects, acerola has not found enough space in the sector in many parts of the world. Studies in which the potential for use is evaluated and attention are drawn to continue increasingly.