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New York Science Journal
(N Y Sci J)
ISSN 1554-0200 (print); ISSN 2375-723X (online),
doi prefix: 10.7537, Monthly
Volume 13 -
Number 11 (Cumulated No. 141); November 25, 2020
Cover
(jpg),
Cover
(pdf),
Introduction,
Contents,
Call for
Papers,
ny1311
The following manuscripts are presented as online first for peer-review, starting from October 22, 2020.
All comments are welcome; you may email us at editor@sciencepub.net, or contact the authors directly.
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CONTENTS
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No.
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Titles /
Authors /Abstracts
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Full Text
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No.
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1
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Position Control of a Three
Degree of Freedom Gyroscope using Optimal Control
Mustefa Jibril, Messay Tadese,
Nuriye Hassen
Msc, School of Electrical &
Computer Engineering, Dire Dawa Institute of Technology, Dire
Dawa, Ethiopia
mustefa.jibril@ddu.edu.et
Abstract
In this paper, a 3 DOF gyrscope position control have been
designed and controlled using optimal control theory. An input
torque has been given to the first axis and the angular position
of the second axis have been analyzed while the third axis are
kept free from rotation. The system mathematical model is
controllable and observable. Linear Quadratic Integral (LQI) and
Linear Quadratic State Feedback Regulator (LQRY) controllers
have been used to improve the performance of the system.
Comparison of the system with the proposed controllers for
tracking a desired step and random angular position have been
done using Matlab/Simulink Toolbox and a promising results has
been analyzed.
[Mustefa Jibril, Messay Tadese,
Nuriye Hassen.
Position Control of a
Three Degree of Freedom Gyroscope using Optimal Control.
N Y Sci J
2020;13(11):1-5].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
1.
doi:10.7537/marsnys131120.01.
Keywords:
Gyrscope, Linear Quadratic
Integral, Linear Quadratic State Feedback Regulator |
Full Text |
1
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2
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Design and
Control of a Vertically Moving
Base
Inverted Pendulum using PI and PID Controllers
Mustefa Jibril1,
Messay Tadese2, Reta Degefa3
1
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
2
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
3
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
mustefa.jibril@ddu.edu.et
Abstract:
In this paper, a vertically
moving base inverted pendulum control analysis has been done
using Matlab/Simulink Toolbox. Because the vertically moving
base inverted pendulum system is nonlinear and highly unstable,
a feedback control system is used to make the system controlled
and stable. A PI and PID controllers are used to improve the
stability of the pendulum. Comparison of the vertically moving
base inverted pendulum using PI and PID controllers for tracking
a desired angular position of the system using a step and random
input signals and a promising results have been obtained
succesfully.
[Mustefa Jibril, Messay Tadese,
Reta Degefa.
Design
and Control of a Vertically Moving
Base
Inverted Pendulum using PI and PID Controllers.
N Y Sci J
2020;13(11):6-9].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
2.
doi:10.7537/marsnys131120.02.
Keywords:
Inverted pendulum, Proportional
Integral Derivative controller, Proportional Integral controller |
Full Text |
2
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3
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Examples and Counterexamples to
Theory of Everything [ToE]
S. Kalimuthu
2/394,
Kanjampatti P.O, Pollachi, Tamil Nadu 642003, India
owlskalimuthu@gmail.com Mobile +91
8220541577
Researcher ID:
AAP-4476-2020
Scopus Author ID: 25723330600
ORCID ID: 0000-0001-7978-9013
MR ID 1048338
Abstract:
In the nineteen eighties, the Scottish physicist JC Maxwell
realized that electric and magnetic forces are similar. He
unified electricity and magnetism. Einstein unsuccessfully tried
for more than thirty years to unify gravity and electromagnetic
forces. In the nineteen seventies Abdus Salam and Steven
Weinberg unified electromagnetic and nuclear weak inter action
force. Physicists believe that at very high temperatures, the
strong nuclear force behave like electroweak force. Attempts are
being made to unify electroweak force with gravity. In this
micro article, the author outlines examples and counterexamples
in the theory of everything. The author politely tells that this
is only an elementary attempt. The road is too long to travel to
reach the Ultimate Theory.
[S.
Kalimuthu. Examples and
Counterexamples to Theory of Everything [ToE].
N Y Sci J 2020;13(11):10-12].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
3.
doi:10.7537/marsnys131120.03.
Keywords: Fundament al forces
of Nature; Theory of Everything [ToE] |
Full Text |
3
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4
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Dark matter
Primarily from
Wikipedia, the free encyclopedia
(https://en.wikipedia.org/wiki/Dark_matter)
Mark Herbert, PhD
World Development Institute, 39
Main Street, Flushing, Queens, New York 11354, USA,
ma708090@gmail.com
Abstract:
Dark matter
is a form of
matter
composed for approximately 85% of the matter in the
universe
and about a quarter of its total
mass - energy
density.
Primary evidence for dark matter comes from calculations showing
that many
galaxies
would fly apart, or that they would not have formed or would not
move as they do, if they did not contain a large amount of
unseen matter. Other lines of evidence include observations in
gravitational
lensing
and in the
cosmic microwave
background,
along with astronomical observations of the
observable
universe's
current structure, the
formation and
evolution of galaxies,
mass location during
galactic
collisions,
and the motion of galaxies within
galaxy clusters.
In the standard
Lambda-CDM
model of cosmology, the total
mass–energy
of the universe contains 5%
ordinary matter
and
energy,
27% dark matter and 68% of a form of energy known as
dark energy.
[Mark Herbert.
Dark matter.
N Y Sci J
2020;13(11):13-29].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
4. doi:10.7537/marsnys131120.04.
Keywords:
dark matter;
universe;
energy;
galaxy;
gravity;
cosmic microwave
background,
cosmology |
Full Text |
4
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5
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Use of Social Media among Male
and Female Agricultural Extension Agents in the north central
Nigeria
Ifeyinwa Jacinta
Onu1
and Julius Ajah2
1Department
of Computer Science, Faculty of Science, University of Abuja,
Nigeria
2Department
of Agricultural Extension and Rural Sociology, Faculty of
Agriculture, University of Abuja, Nigeria
juliusajah2@yahoo.com
Abstract:
The study examined the use of social media among male and female
agricultural extension agents (AEAs) in the north central
Nigeria. Specifically, we tried to find out if social media use
depends on gender, state (location) of the AEAs and media type.
The study randomly sampled AEAs from Benue, Plateau, Nassarawa,
Kogi, Kwara, and Niger States. The social media studied include
Facebook, Whats
App, ResearchGate, Twitter,
Instagram and LinkedIn. Analysis was done using three-way
analysis of variance. First, pooled data result, F (1, 455) =
8.08, p =.00, showed that the male AEAs significantly
used all the social media more than their female colleagues.
This implies that social media use depends on gender. Second,
the result, F (5, 2275) = 98.91, p =.00, indicated that
regardless of gender of the AEAs, some social media were
significantly used more than others across the states. For
example, Facebook and WhatsApp were significantly used by the
AEAs more than other social media while the least used were
Instagram and LinkedIn implying that social media use depends on
media type. Third, the result, F (25, 2275) = 2.39, p
=.00, showed that there were significant variations in gender
use of some of the social media in some states. In other words,
there were significant locational differences in the male and
female AEAs use of social media for extension work. This also
indicates that the location (state) where the extension agents
work influences media use in extension. Generally, the grand
mean response (1.80) indicated that the use of social media was
low in the study area. Based on the findings, it was concluded
that the use of social media for extension services depends on
gender, type of social media and location (state) of the AEAs in
the north central Nigeria.
[Onu IJ,
Ajah J. Use of
Social Media among Male and Female Agricultural Extension Agents
in the north central Nigeria.
N Y Sci J
2020;13(11):30-40].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
5.
doi:10.7537/marsnys131120.05.
Keywords:
Social media, extension agents, male gender, female gender,
farmers |
Full Text |
5
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6
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Design and Performance
Investigation of a Low Cost Portable Ventilator for COVID-19
Patients
Mustefa Jibril1,
Messay Tadese2, Nuriye Hassen3
1
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
2
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
3
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
mustefa.jibril@ddu.edu.et
Abstract:
In this paper, the
design of a low cost portable ventilator with performance
analysis have been done to solve the scarcity of respiratory
ventilators for COVID-19 patients. The materials used to build
the system are: DC motor, rotating disc and pneumatic piston.
The system input is the patient heart beat and the output is
volume of air to the patient lung with adjusted breathing rate.
This ventilator adjusts the breathing rate to the patient
depending on his heart beat rate. The performance analysis of
this system have been done using Proportional Integral
Derivative (PID) and Full State Feedback H2 controllers.
Comparison of the system with the proposed controllers have been
done using a step change and a random change of the patient
heart beat and a promising result have been analyzed
successfully.
[Mustefa
Jibril,
Messay Tadese, Nuriye Hassen. Design and
Performance Investigation of a Low Cost Portable Ventilator for
COVID-19 Patients.
N Y Sci J
2020;13(11):41-46].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
6.
doi:10.7537/marsnys131120.06.
Keywords: Ventilator,
COVID-19, DC motor, Proportional Integral Derivative, Full State
Feedback H2 controller |
Full Text |
6
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7
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Metal Cutting Tool Position Control using Static Output Feedback
and Full State Feedback  Controllers
Mustefa Jibril1,
Messay Tadese2, Roman Jirma3
1
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
2
Msc, School of Electrical & Computer Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
3
Msc, School of Industrial & Mechanical Engineering, Dire Dawa
Institute of Technology, Dire Dawa, Ethiopia
mustefa.jibril@ddu.edu.et
Abstract:
In this paper, a metal cutting machine position control have
been designed and simulated using Matlab/Simulink Toolbox
successfully. The open loop response of the system analysis
shows that the system needs performance improvement. Static
output feedback and full state feedback H 2 controllers have
been used to increase the performance of the system. Comparison
of the metal cutting machine position using static output
feedback and full state feedback H 2 controllers have been done
to track a set point position using step and sine wave input
signals and a promising results have been analyzed.
[Mustefa
Jibril,
Messay Tadese, Roman Jirma.
Metal Cutting Tool Position Control using Static Output Feedback
and Full State Feedback Controllers.
N Y Sci J 2020;13(11):47-55].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
7.
doi:10.7537/marsnys131120.07.
Keywords:
Metal cutting machine, Static output feedback, Full state
feedback H 2 controllers |
Full Text |
7
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8
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Epidemiological Distribution and Vectors of Bovine
Trypanosomosis in Dangur District, Metekel Zone, Benishangul
Gumuz region, North Western Ethiopia
1
Mubarik Kedir, *2 Mohammed Abdulkadir and *3
Haile Worku
1 and *2
Benishangul Gumuz regional state, Assosa tsetse fly and
trypanosomosis control and surveillance center, Asossa,
Ethiopia. Email:
mubeks@gmail.com
and
dr.mamedoo@gmail.com
*3
Benishangul Gumuz regional state, Bureau of Agriculture and
Natural Resource, P.O. Box: 30 Assosa, Ethiopia. Email:
workuhaile29@gmail.com.
Abstract:
A cross-sectional study was carried out from February to June
2019 to determine the prevalence of bovine trypanosomosis,
identification of circulating trypanosome species, vectors and
associated risk factors in Dangur district of Benishangul Gumuz
Regional State, Western Ethiopia. Blood samples were collected
from a total of 390 cattle and examined using buffy coat
technique. The present study revealed overall trypanosomosis
prevalence was 18(4.62%). The major species of Trypanosoma
identified were Trypanosoma Congolense (66.66%), Trypanosoma
vivax (22.22%), Trypanosoma brucei (5.55%) and mixed infection
(5.55%). Mean packed cell volume (PCV) value of the infected
animals was lower (21.78%
+
2.44)
than uninfected animals (26.69%
+
2.21)
and the variation was statistically significant (P< 0.05).
Overall, anemia prevalence of 26.43% (107/390) was recorded and
it was significantly higher (66.67%) in infected cattle than in
non-infected (33.33%).
Statistical significant was not recorded 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 tachinoide was the only tsetse
fly caught and its mean apparent density measured as
fly/trap/day was 0.25. In addition, mechanical vectors of
Trypanosomosis such as
Stomoxys (0.11 f/t/d),
Tabanus (0.08f/t/d)
and Haematopota (0.02 f/t/d) were identified. Although the
present study revealed low prevalence (4.62%) of Trypanosomosis
in bovine in the study area. The impact of this desease on
production and the role of the bovine as the potential risk of
transmissions to the livestock should not be underestimated.
Therefore, appropriate intervention measures need to be taken.
[Mubarik
Kedir, Mohammed Abdulkadir and Haile Worku.
Epidemiological Distribution and Vectors of Bovine
Trypanosomosis in Dangur District, Metekel Zone, Benishangul
Gumuz region, North Western Ethiopia.
N Y Sci J
2020;13(11):56-62].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
8.
doi:10.7537/marsnys131120.08.
Key words:
Dangur, Trypanosomosis, Tsetse fly, prevalence, Risk factors |
Full Text |
8
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9
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Dark Matter
Primarily from
Wikipedia, the free encyclopedia
(https://en.wikipedia.org/wiki/Dark_matter)
Mark Herbert, PhD
World Development Institute
39-06 Main Street, Flushing,
Queens, New York 11354, USA,
ma708090@gmail.com
Abstract:
Dark matter
is a form of
matter
composed for approximately 85% of the matter in the
universe
and about a quarter of its total
mass - energy
density.
Primary evidence for dark matter comes from calculations showing
that many
galaxies
would fly apart, or that they would not have formed or would not
move as they do, if they did not contain a large amount of
unseen matter. Other lines of evidence include observations in
gravitational
lensing
and in the
cosmic microwave
background,
along with astronomical observations of the
observable
universe's
current structure, the
formation and
evolution of galaxies,
mass location during
galactic
collisions,
and the motion of galaxies within
galaxy clusters.
In the standard
Lambda-CDM
model of cosmology, the total
mass–energy
of the universe contains 5%
ordinary matter
and
energy,
27% dark matter and 68% of a form of energy known as
dark energy.
[Mark Herbert.
Dark Matter.
N Y Sci J
2020;13(11):63-79].
ISSN 1554-0200 (print); ISSN
2375-723X (online).
http://www.sciencepub.net/newyork.
9. doi:10.7537/marsnys131120.09.
Keywords:
dark matter;
universe;
energy;
galaxy;
gravity;
cosmic microwave
background,
cosmology |
Full Text |
9
|
The manuscripts in
this issue were presented as online first for peer-review,
starting from October 22, 2020.
All comments are
welcome: newyorksci@sciencepub.net.
For back issues of the
New York
Science Journal, click
here.
Emails: newyorksci@sciencepub.net;
editor@sciencepub.net
Website: http://www.sciencepub.net/newyork
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