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All Journal Journal of Novel Engineering Science and Technology Bincang Sains dan Teknologi
Yohakim, Yoman Ribeta Ratu
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Mechanical Engineering Transportation

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Suspension Bridge Estimation Method using the Fokker-Planck Model Jufriansah, Adi; Lazwardi, Ahmad; Pramudya, Yudhiakto; Nurrahman, Arip; Khusnani, Azmi; Yohakim, Yoman Ribeta Ratu
Journal of Novel Engineering Science and Technology Vol. 3 No. 02 (2024): Journal of Novel Engineering Science and Technology
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/jnest.v3i02.536

Abstract

The failure of the suspension bridge has been known since the beginning of the bridge collapse. Most of these failures form the basis of current engineering knowledge. One of the factors of failure is human-made factors related to the calculation of the bridge estimate. This paper presents an indirect estimation method using numerical simulation using finite elements by analyzing the Fokker-Planck model when dynamic excitation is associated with bridge loads. The results show that the Fokker-Planck model's homogeneous form can take into account the solution for the bridge analysis approach. It leads to a stable state when giving mass variations to the model. The indirect estimation method using finite elements can estimate the cable tension with controllable weak damping. It can be concluded that the method in this study is more accurate and convenient for the application technique.
Exploration of Wien Displacement Law: A Fundamental Concept in Quantum Physics Yohakim, Yoman Ribeta Ratu; Maodjud, Siti Hamia; Ngaga, Elisabeth Jaa; Jufriansah, Adi; Sahlan
Bincang Sains dan Teknologi Vol. 3 No. 03 (2024): Bincang Sains dan Teknologi
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/bst.v3i03.648

Abstract

This study explores the relationship between the temperature of a black body and the wavelength of the radiation it emits based on the Wien Displacement Law. This experiment collected maximum temperature and wavelength data using PhET simulation software and other supporting devices. The Wien Displacement Law states that the wavelength at which the maximum intensity of blackbody radiation occurs (λmax) is inversely proportional to the absolute temperature of the object (T). To test this law, the temperature of the blackbody was set at various values in the simulation, and the resulting maximum wavelength was recorded. The linear regression method analyzed the data to determine the temperature and maximum wavelength relationship. The analysis results showed a linear relationship with a coefficient of determination R2 = 1, indicating that the model fits the observed data well. The value of Wien's constant (b) calculated from the slope of the regression line is close to the theoretical value of 2.897 × 10-3 m.K, supporting the validity of the Wien Displacement Law. In conclusion, this study confirms that the maximum wavelength of electromagnetic radiation is inversely proportional to the absolute temperature of a blackbody, which agrees with the prediction of the Wien Displacement Law.  
Understanding the Concept of Photo Electricity: Applications and Implications in Quantum Physics Subandi, Yunita Kristianti; Sulastri, Endang; Bukangdonu, Feronika; Yohakim, Yoman Ribeta Ratu; Jufriansah, Adi; Sahlan
Bincang Sains dan Teknologi Vol. 3 No. 03 (2024): Bincang Sains dan Teknologi
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/bst.v3i03.702

Abstract

This research investigates the photoelectric effect using PhET Simulation to verify and test hypotheses related to this phenomenon. The study focuses on the interaction between ultraviolet (UV) light and sodium electrodes, analyzing the relationship between light wavelength and the resulting electron energy. Through experiments, critical constants in physics, such as Planck's constant, are calculated to validate the theories of the photoelectric effect. The findings demonstrate a non-linear relationship between UV light wavelength and current strength, with optimal photon energy required to induce maximum electron ejection at specific wavelengths. This research highlights the significance of simulation tools in understanding quantum physics concepts and aims to enhance teaching methods for more effective and engaging physics education.
Co-Authors Adi Jufriansah Azmi Khusnani Bukangdonu, Feronika Endang Sulastri Lazwardi, Ahmad Maodjud, Siti Hamia Ngaga, Elisabeth Jaa Nurrahman, Arip Sahlan Subandi, Yunita Kristianti Yudhiakto Pramudya