IOSR-JAP   Volume-16 ~ Issue-1 ~ Jan. – Feb. 2024

ABSTRACT: This work was carried out in Niakhene, which is located in the Tivaoune department. An experimental site and a reference were selected. The improved mass balance model was used as the model and the obtained results allowed for the observation of different estimated results. For the T1 erosion rates varied varied from 12.00 t. ha.an-1 to 70.30 t. ha.an-1, with an average erosion rate of 43.96 t. ha.an-1. Deposition rates varied between 3.00 t. ha.an-1 to 198.03 t. ha.an-1 with an average deposition rate of 72.55 t. ha.an-1. It is noted that five points are eroded, such as points T1S10 T1S30, especially.....

Keywords: soil erosion, 137Cs, mass balance model, Highlands, Niakhène.

[1]. Fao. 2015. Global Soil Partnership. Rome, Italy: Food And Agriculture Organization Of The United Nations. Available At: Http://Www.Fao.Org/Global-Soil-Partnership/Pillars-Action/Erosion/En/ (Accessed 7 April 2023).
[2]. Lal, R. 2015. Restoring Soil Quality To Mitigate Soil Degradation. Sustainability, 7(5), 5875-5895.
[3]. Teng, Y., Wang, X., And Chen, J. 2016. A Review Of Soil Erosion Potential Of China Based On Rusle Model. Catena, 141, 73-86.
[4]. Walling, D.E. 2006. The Use Of Fallout Radionuclides As Tracers In Soil Erosion Investigations. Geomorphology, 79(3-4), 217-239.
[5]. Walling, D.E. 2006. The Use Of Fallout Radionuclides As Tracers In Soil Erosion Investigations. Geomorphology, 79(3-4), 217-239.

ABSTRACT: Graphite was always known to be special as it is the sole Allotrope of Carbon that bears the property of electrical conductivity. Today, with the help of a few common apparatuses we will conduct a experiment to measure how this electrical conductivity varies with the concentration of graphite in a pencil.

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Graphite Resistors. Www.Troelsgravesen.Dk/Graphite.Htm.
[2]. "Experiment On Pencil Resister Effect On Circuit Output." Ukessays. Ukessays.Com, November 2018. Web. 14 August 2023. <Https://Www.Ukessays.Com/Essays/Physics/Experiment-Pencil-Resister-Effect-Circuit-9654.Php?Vref=1>.
[3]. Clastify. Ib Physics Ia Example: How Does The Proportion Of Graphite In A Pencil Affect Its Electrical Conductivity? | Clastify. Www.Clastify.Com/Ia/Physics/6336a1a2d77add00134d85ab.
[4]. David, Iulia Gabriela, Et Al. "Pencil Graphite Electrodes: A Versatile Tool In Electroanalysis." Journal Of Analytical Methods In Chemistry, Vol. 2017, Hindawi Publishing Corporation, Jan. 2017, Pp. 1–22. Https://Doi.Org/10.1155/2017/1905968.
[5]. Of Pencils And Diamonds – Everything About Graphite. Www.Sglcarbon.Com/En/Everything-About-Graphite.

ABSTRACT: The problem in the analysis of DC electrical circuits using Kirchoff I's law and Kirchoff II's law is obtained by the System of Linear Equations. In addition to using the elimination substitution method, the System of Linear Equations can also be solved using the help of matrices. Some numerical methods that can solve DC electrical circuit problems are the Gauss Elimination Method, Cramer Method, Gauss-Jordan Elimination Method, and Matrix Inversion Method. Cayley Hamilton's......

Key Word: Electric circuits; System of linear equations; Cayley Hamilton's theorem

[1] K. D. Arista, K. Suma, And W. Suastra, "The Effect Of Phenomenon-Based Learning Assisted By E-Learning On Students' Critical Thinking Ability And Learning Motivation,"Undiksha Journal Of Physics Education, Flight. 12, No. 1, Pp. 123–133, 2022
[2] N. Faujiah, M. Wahyudi, And Bahtiar, "Application Of The Group Investigation Type Cooperative Learning Model To Improve The Activities And Learning Outcomes Of Classjournal Of Physics And Physics Education, Vol. 5, No. 2, Pp. 62–68, 2020, [Online].Available:Http://Jurnalkonstan.Ac.Id/Index.Php/Jurnal
[3] I. Setiono And D. Y. Tadeus, "The Relationship Between Applied Physics Subjects In Their Contribution To Skills Subjects For Students In The Electrical Engineering Diploma Iii Program At The Diponegoro University Vocational School,"Echo Technology Journal, Flight. 20, No. 1, 2018.
[4] F. Hasyim And A. Ramadhan, "Adequacy Of Mathematical Ability For Prospective Physics Teachers,"Journal Of Physics Education Innovation And Integration, Vol. 1, No. 2, 2018, [Online]. Available:Https://Www.Researchgate.Net/Publication/328328618
[5] Harefa,Monograph On The Use Of Meaningful Instructional Design Learning Models In Physics Learning. Solok: Cv Mandiri Scholars, 2021..

ABSTRACT: The helium ion is one of the ions included in the hydrogenic atom because it has only one electron in its outermost orbital, so the problem in the helium ion can be solved using the Schrodinger equation approach at spherical coordinates. This study was conducted to examine the solution of helium ions in the representation of positional space using the.....

Key Word: Laguerre; Polynomial; Schrodinger; Radial Section; Helium Ion

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