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Analysis Of Differential Equations By Using Fourier Transformation

Dr. Dinesh Verma

Professor, Department of Mathematics, NIILM University, Kaithal (Haryana)

Email: drdinesh.maths@gmail.com

Abstract: The linear non-homogeneous differential equations are generally solved by adopting by Laplace transform method or by method of variation of parameters or by method of undetermined coefficients. The paper inquires the linear non-homogeneous differential equations by applying Fourier Transformation. The purpose of paper is to prove the applicability of Fourier Transformations for the analysis of linear non-homogeneous differential equations.

[Dinesh Verma. Analysis Of Differential Equations By Using Fourier Transformation. Researcher 2020;12(8):1-4]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 1. doi:10.7537/marsrsj120820.01.

Keywords: Linear non-homogeneous differential equations, Fourier Transformations

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Design & Control of Vehicle Boom Barrier Gate System using Augmented  Optimal &  Synthesis Controllers

Mustefa Jibril ¹, Messay Tadese ², Tesfabirhan Shoga³

^1. School of Electrical & Computer Engineering, Dire Dawa Institute of Technology, Dire Dawa, Ethiopia

^2. School of Electrical & Computer Engineering, Dire Dawa Institute of Technology, Dire Dawa, Ethiopia

^3. Faculty of Electrical & Computer Engineering, Jimma Institute of Technology, Jimma, Ethiopia 

mustefa.jibril@ddu.edu.et

Abstract: A vehicle boom barrier gate system is one of the recently developed technologies operating at the entrances to the restricted areas. This paper aims to design and control of vehicle’s boom barrier gate system using robust augmentation technique.  optimal and  synthesis controllers are used to improve the performance of the system. The open loop response analysis of the vehicle boom barrier gate system shows that the input of the system need to be improved. Comparison of the vehicle boom barrier gate system with  optimal and  synthesis controllers have been done to track a set point desired angular position using a step and operational open and close input signals and a promising results have been observed.

[Mustefa Jibril, Messay Tadese, Tesfabirhan Shoga. Design & Control of Vehicle Boom Barrier Gate System using Augmented  Optimal & Synthesis Controllers. Researcher 2020;12(8):5-12]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 2. doi:10.7537/marsrsj120820.02.

Keywords: Boom barrier gate, optimal, synthesis

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Design and Simulation of Voltage Amplidyne System using Robust Control Technique

Mustefa Jibril ¹, Messay Tadese ², Eliyas Alemayehu Tadese ³

^1. School of Electrical & Computer Engineering, Dire Dawa Institute of Technology, Dire Dawa, Ethiopia.

^2. School of Electrical & Computer Engineering, Dire Dawa Institute of Technology, Dire Dawa, Ethiopia

^3. Faculty of Electrical & Computer Engineering, Jimma Institute of Technology, Jimma, Ethiopia 

mustefazinet1981@gmail.com

Abstract: In this paper, modelling designing and simulation of a simple voltage amplidyne system is done using robust control theory. In order to increase the performance of the voltage amplidyne system with H  optimal control synthesis and H optimal control synthesis via-iteration controllers are used. The open loop response of the voltage amplidyne system shows that the system can amplify the input 7 times. Comparison of the voltage amplidyne system with H optimal control synthesis and H optimal control synthesis via-iteration controllers to track a desired step input have been done. Finally, the comparative simulation results prove the effectiveness of the proposed voltage amplidyne system with H optimal control synthesis controller in improving the percentage overshoot and the settling time.

[Mustefa Jibril, Messay Tadese, Eliyas Alemayehu Tadese. Design and Simulation of Voltage Amplidyne System using Robust Control Technique. Researcher 2020;12(8):13-17]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 3. doi:10.7537/marsrsj120820.03.

Keywords: Amplidyne, H  optimal control synthesis controller, H  optimal control synthesis via -iteration controller

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Mechanically Actuated Capacitor Microphone Control using MPC and NARMA-L2 Controllers

Mustefa Jibril ¹, Messay Tadese ², Eliyas Alemayehu Tadese ³

^1. School of Electrical & Computer Engineering, Dire Dawa Institute of Technology, Dire Dawa, Ethiopia

^2. School of Electrical & Computer Engineering, Dire Dawa Institute of Technology, Dire Dawa, Ethiopia

^3. Faculty of Electrical & Computer Engineering, Jimma Institute of Technology, Jimma, Ethiopia 

mustefazinet1981@gmail.com

Abstract: In this paper, a capacitor microphone system is presented to improve the conversion of mechanical energy to electrical energy using a nonlinear auto regressive moving average-L2 (NARMA-L2) and model predictive control (MPC) controllers for the analysis of the open loop and closed loop system. The open loop system response shows that the output voltage signal need to be improved. The comparison of the closed loop system with the proposed controllers have been analyzed and a promising result have been obtained using Matlab/Simulink.

[Mustefa Jibril, Messay Tadese, Eliyas Alemayehu Tadese. Mechanically Actuated Capacitor Microphone Control using MPC and NARMA-L2 Controllers. Researcher 2020;12(8):18-23]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 4. doi:10.7537/marsrsj120820.04.

Keywords: Microphone, Nonlinear auto regressive moving average-L2, Model predictive control

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5

COVID-19 and ACE2 Research Literatures

Mark Herbert

World Development Institute

39-06 Main Street, Flushing, Queens, New York 11354, USA, ma708090@gmail.com

Abstract: Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The virus is mainly spread during close contact and via respiratory droplets that are produced when a person talks, coughs, or sneezes. Respiratory droplets may be produced during breathing, however, current research indicates that the virus is not considered airborne. People may also contract COVID-19 by touching a contaminated surface (Fomite) and then inadvertently transfer the pathogen to a mucous membrane (such as the eyes, nose, or mouth). It is most contagious when people are symptomatic, although spread may be possible before symptoms appear. The virus can live on surfaces up to 72 hours. Time from exposure to onset of symptoms is generally between two and fourteen days, with an average of five days. The standard method of diagnosis is by reverse transcription polymerase chain reaction (rRT-PCR) from a nasopharyngeal swab. The infection can also be diagnosed from a combination of symptoms, risk factors and a chest CT scan showing features of pneumonia. This article introduces recent research reports as references in the related studies.

[Herbert M. COVID-19 and ACE2 Research Literatures. Rep Opinion 2020;12(8):24-34]. ISSN 1553-9873 (print); ISSN 2375-7205 (online). http://www.sciencepub.net/report. 5. doi:10.7537/marsroj120820.05.

Key words: COVID-19; America; life; research; literature

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Study On Comparison Between Sine-Gordon & Perturbed Nls Equations

*Dr. Rajeev Kumar and **Arvind Yadav

*Associate Professor, Department of Mathematics, OPJS University, Churu, Rajasthan (India)

**Research Scholar, Department of Mathematics, OPJS University, Churu, Rajasthan (India)

Email: arvinddahiya6@gmail.com

Abstract: The cognitive load work by Kirschner, Sweller, and Clark (2006) gives an explanation for the necessity of fluency with prerequisite knowledge. Without prerequisite fluency, short-term memory becomes overloaded and unable to effectively process the new concepts being learned. Hattie (2009) noted that fluency with prerequisite knowledge, even at a very early stage, was highly predictive of latter success. The key prerequisite concepts and processes necessary to engage meaningfully with quadratics include basic whole number fluency, fraction computation, linear algebraic procedures, and coordinate geometry. A key process in working with quadratics is solving or finding the intercepts, should there be any. In most curricula this has involved factorization, the square root method, completing the square, and the use of the quadratic formula.

[Kumar, R. and Yadav, A., Study On Comparison Between Sine-Gordon & Perturbed Nls Equations. Researcher 2020;12(8):35-39]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 6. doi:10.7537/marsrsj120820.06.

Keywords: Comparison, Sine-Gordon & Perturbed Nls Equations

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Introduction of σ-Statistical Convergence and Lacunary σ-Statistical Convergence

*Dr. Rajeev Kumar and **Preety

*Associate Professor, Department of Mathematics, OPJS University, Churu, Rajasthan (India)

**Research Scholar, Department of Mathematics, OPJS University, Churu, Rajasthan (India)

Email: preetyyadav0066@gmail.com

Abstract: The main object of this chapter is to study two more extensions of the concept of statistical convergence namely σ-statistical convergence and lacunary σ-statistical convergence. We also study the concept of L_θ-convergence. In section 1.2 we study some inclusion relations between L_θ-convergence and lacunary σ-statistical convergence and show that these are equivalent for bounded sequences. Further in section 1.3 we study relation between σ-statistical convergence and lacunary σ-statistical convergence.

[Kumar, R. and Preety. Introduction of σ-Statistical Convergence and Lacunary σ-Statistical Convergence. Researcher 2020;12(8):40-44]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 7. doi:10.7537/marsrsj120820.07.

Keywords: σ-Statistical Convergence, Lacunary σ-Statistical Convergence, Statistical, Convergence

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Prevalence of Bovine Trypanosomosis in Bambasi District, Assosa Zone, Benishangul Gumuz Regional State, Western Ethiopia.

¹ Mubarik Kedir, ^2*Haile Worku

¹ Assosa Tsetse Fly and Trypanosomosis Control and Surveillance Center

Email: mubeks@gmail.com

^2* Benishngul -Gumuz Regional State, Bureau of Agriculture and Natural Resource, P.O. Box: 30 Assosa, Ethiopia

Email: workuhaile29@mail.com

Abstract: A cross-sectional study was carried out in Bambasi district of Benishangul Gumuz Regional State, Western Ethiopia from November 2017 to May 2018 to determine the prevalence of trypanosomosis, identification of circulating trypanosome species, identification of the vectors and associated risk factors. Blood samples were collected from a total of 400 cattle and examined using buffy coat technique. Overall 25 (6.25%) trypanosomosis prevalence was recorded. The major species of Trypanosoma identified include: Trypanosoma Congolense (56%), Trypanosoma vivax (24%), Trypanosoma brucei (12%) and mixed infection accounted for 8%. Mean packed cell volume (PCV) value of the infected animals was lower (21.08% + 2.06) than uninfected animals (26.06% + 2.6) and the variation was statistically significant (P< 0.05). Overall anemia prevalence of 30.5% (122/400) was recorded and it was significantly higher (72%) in infected cattle than in non-infected (27.73%). Significant difference was not observed between sex groups and age categories (p>0.05) but there was significant difference in the prevalence of trypanosomosis among study sites and body conditions (P< 0.05). Glossina morsitans sub morsitans was the only tsetse fly caught and its mean apparent density measured as fly/trap/day was 0.325. In addition, mechanical vectors of trypanosomosis such as Stomoxys (0.15 f/t/d), Tabanus (0.1f/t/d) and Haematopota (0.04 f/t/d) were identified. In conclusion, although the result of the current study showed relatively low prevalence of bovine Trypanosomosis, the impact of this disease on production and the role of these animals as potential risk of transmission to other livestocks is not underestimated. Therefore, appropriate intervention measures need to be taken.

[Mubarik Kedir Haile Worku. Prevalence of Bovine Trypanosomosis in Bambasi District, Assosa Zone, Benishangul Gumuz Regional State, Western Ethiopia. Researcher 2020;12(8):45-51]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 8. doi:10.7537/marsrsj120820.08.

Key words: Bambasi, Trypanosomosis, Tsetse fly, prevalence, Risk factors

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[Researcher 2020;12(8):52-57]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 9.

 withdrawn

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Colorectal Cancer Research Literatures

Mark Herbert, PhD

World Development Institute

39-06 Main Street, Flushing, Queens, New York 11354, USA, ma8080@gmail.com

Abstract: Cancer is the general name for a group of more than 100 diseases. Although there are many kinds of cancer, all cancers start because abnormal cells grow out of control. Untreated cancers can cause serious illness and death. The body is made up of trillions of living cells. Normal body cells grow, divide, and die in an orderly fashion. During the early years of a person’s life, normal cells divide faster to allow the person to grow. After the person becomes an adult, most cells divide only to replace worn-out or dying cells or to repair injuries. This article introduces recent research reports as references in the colorectal cancer research literatures and related studies.

[Mark H. Colorectal Cancer Research Literatures. Researcher 2020;12(8):58-98]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 10. doi:10.7537/marsrsj120820.10.

Key words: cancer; life; research; literature; cell

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