Kelayakan Media Pembelajaran Praktikum Fisika Teknik Menggunakan Video Tutorial

The Covid-19 emergency period requires the implementation of online learning, which was previously carried out offline. This condition causes engineering physics lectures to experience problems in the practical process. For this reason, the purpose of this research is to make learning media that is feasible and simple and easily accessible (YouTube) in the form of video tutorials on engineering physics practicum. The method used is R&D with ADDIE model consisting of Analysis, Design, Development, Implementation and Evaluate stages. Data collection techniques using Likert scale questionnaires and analyzed using quantitative descriptive techniques. The results showed that the practicum learning this product video tutorials was declared very-suitable (VS) for use by media experts with a percentage of 92.5% and according to material experts, it was stated to be very-feasible (VF) with a percentage of 85%, and the results of user responses were stated to be VF with a percentage of 86.20%. So that online practicum applies this media is very suitable to be implemented as a physic learning media.

Teaching kinematics via arduino based STEM education material

The present study reports an Arduino-based STEM education material that resolves the kinematics of a moving object, specifically focusing on two dimensional motion of the object. Throughout the work, a sample application that can be prepared in a classroom where students are active and including the acquisitions of Technology, Engineering, Physics and Mathematics in a single educational environment. In the study, instantaneous time dependence of the displacements, namely x(t) and y(t) components and the resultant R(t) component, are experimentally measured on a vehicle by using an Arduino UNO, distance sensors and Bluetooth sensor prepared within the scope of a STEM education approach. The ratios between those measured physical quantities and theoretical estimations are found to be %13.1 for the position, %1.4 for the velocity and %7.8 for the acceleration. The error rate of the data was accepted to be reasonable considering highly economical teaching materials.

Lorenz and Lotka-Volterra Equations Using MATLAB Resolution

In Mathematics, a differential equation is an equation that relates one or more functions and their derivatives. In applications, the functions generally represent physical quantities, the derivatives represent their rates of change, and the differential equation defines a relationship between the two. Such relations are common; therefore, differential equations play a prominent role in many disciplines including engineering, physics, economics, and biology.Mainly the study of differential equations consists of the study of their solutions, and of the properties of their solutions.Only the simplest differential equations are solvable by explicit formulas; however, many properties of solutions of a given differential equation may be determined without computing them exactly.In our report, we are interested by the resolution of two differential equations, the famous Lorenz dynamic system which was developped to understand the chaotic character of meteorology, and the Predator prey model.In the folowwing report, we are going to resolve these equations in order to understand their meanings using Matlab, but first of all, we should introduce each problem, then develop and explain both mathematical and numerical issues, our main goal is to resolve these systems with an adequate Matlab formulation, using the ode45 function and finally we should discuss the results.

International Symposium and International School for Young Scientists on “Physics, Engineering and Technologies for Biomedicine”

International Symposium and International School for Young Scientists on “Physics, Engineering and Technologies for Biomedicine” (PhysBioSymp) is an annually held event in National Research Nuclear University MEPhI (https://eng.mephi.ru/) (Moscow, Russia) since 2016. This symposium is conceived as the main conference of the Institute of Engineering Physics for Biomedicine (PhysBio, https://physbio.mephi.ru/), which is one of new strategic academic units founded in 2016 in the course of transformation of MEPhI from the technical to a global university in order to extend its portfolio toward life sciences, chemical and biomedical engineering. Following the chosen strategy, PhysBio aims at the advancement of its international reputation in biomedical sciences and technologies, as well as the integration of latest research achievements into the educational process in order to contribute to the solution of global problems, such as early diagnostics and efficient therapy of socially significant diseases, including cancer. Conceived as an essentially interdisciplinary institution, PhysBio is unique in combining powerful background of MEPhI in physics, mathematics, engineering, material sciences, nanotechnologies and expertise in new areas in chemistry and biology in order to develop breakthrough technologies for biomedical applications. List of Committees are available in this pdf.

New optical soliton solutions via two distinctive schemes for the DNA Peyrard–Bishop equation in fractal order

The deoxyribonucleic acid (DNA) dynamical equation, which emerges from the oscillator chain known as the Peyrard–Bishop (PB) model for abundant optical soliton solutions, is presented, along with a novel fractional derivative operator. The Kudryashov expansion method and the extended hyperbolic function (HF) method are used to construct novel abundant exact soliton solutions, including light, dark, and other special solutions that can be directly evaluated. These newly formed soliton solutions acquired here lead one to ask whether the analytical approach could be extended to deal with other nonlinear evolution equations with fractional space–time derivatives arising in engineering physics and nonlinear sciences. It is noted that the newly proposed methods’ performance is most reliable and efficient, and they will be used to construct new generalized expressions of exact closed-form solutions for any other NPDEs of fractional order.

Aerosol Optical Depths during Two Harmattan Seasons in Ile-Ife, Nigeria

Aim: To quantify the atmospheric aerosol loading in order to predict the severity and accompanying consequences of aerosols at a tropical location in Ile-Ife, southwest Nigeria. Place and Duration of Study: Department of Physics and Engineering Physics, Obafemi Awolowo University, Ile-Ife, Nigeria, between November 2017 and March 2019. Methodology: Daily measurements of Aerosol Optical Depth (AOD) at about the local noon (12:30 pm–1:30 pm) for two consecutive Harmattan seasons (November 2017–March 2018; and November 2018 – March 2019) were carried out at three different wavelengths, 465 nm, 540 nm and 619 nm using a manually operated hand-held sun photometer (model Calitoo). Results: The mean values of AOD were 0.98, 0.87 and 0.83 in the 465 nm, 540 nm and 619 nm wavelengths respectively for November 2017 – March 2018; and 0.94, 0.83 and 0.78 in the 465 nm, 540 nm and 619 nm wavelengths respectively for November 2018 – March 2019. The values assume high levels of haziness at the study location. Intense Harmattan dust storm was experienced on some typical days with AOD values > 2. The resulting elevated level of atmospheric haziness led to visibility deterioration and visibility values greatly reduced to 1 km on such days. December, January and February months were the peak of the Harmattan. The distribution of the particle size indicated that the dominated aerosol is the coarse mode Harmattan dust during the period of study. Conclusion: The study location experiences a polluted atmosphere during the Harmattan season.

The Effect of Greenhouse and Biopore on Community Development of Economy and Knowledge of Citeureup Village During the Pandemic

Citeureup Village, RW 06, located in Bandung Regency, West Java Province, is a regional area with low-level economy. The Covid-19 pandemic has made it worse and adding difficulties to the villagers. On the other hand, this area also often experiences flooding with an erratic pattern. Therefore, efforts are needed to improve local food security, economy, and flood disaster mitigation for the Citeureup Village community. Efforts has been made by Telkom University, some through activities carried out by students of the Undergraduate Program in Engineering Physics (TF), which were to carry out community service activities funded by the Village Development and Empowerment Holistic Program (PHP2D) in 2020. These activities were decided by decree number 29/E2/KM/2020. The results of these activities are the construction of a Hydroponic Greenhouse (HG) on ??10m x 4m and biopore infiltration holes as many as 45 hole constructions throughout RW 06 Citeureup Village. Three months after construction, HG's existence has succeeded in improving Citeureup Villagers behavior and practical knowledge in hydroponic and biopore systems from 21% to 98%. As conclusion, Telkom University has succeeded in playing role in improving knowledge, local food security, economy, and reducing flood inundation at Citereup Village.

Expectations and outcomes: How technologies drive virtual teaching

We evaluate the effectiveness of using Zoom for learning Modern Physics topics in a large engineering physics class at a land-grant university in Texas. This virtual technology challenged both students and professors. By implementing different approaches: providing ahead of the lectures reading assignments, PowerPoint presentations, and pre-recorded videos, during the class administering attendance mini-quizzes, and afterward, the assigning on WebAssign homework, elements of an effective class setting were introduced. Passion and mutual understanding united students and teachers to be stronger than the Covid-19 pandemic and to endure the challenging teaching environment. We describe some features of the technologies and the learning expectations. The evaluation of outcomes was done in two ways: quantitatively, by statistical measures, and qualitatively, through an anonymous student survey and a university-wide teacher evaluation.

NUMERICAL ITERATIVE METHOD OF OPEN METHODS WITH CONVERGE CUBICALLY FOR ESTIMATING NONLINEAR APPLICATION EQUATIONS

Finding the single root of nonlinear equations is a classical problem that arises in a practical application in Engineering, Physics, Chemistry, Biosciences, etc. For this purpose, this study traces the development of a novel numerical iterative method of an open method for solving nonlinear algebraic and transcendental application equations. The proposed numerical technique has been founded from Secant Method and Newton Raphson Method, and the proposed method is compared with the Modified Newton Method and Variant Newton Method. From the results, it is pragmatic that the developed numerical iterative method is improving iteration number and accuracy with the assessment of the existing cubic method for estimating a single root nonlinear application equation.