No.

Titles / Authors /Abstracts

Full Text

No.

1

The Model of Use of ICT, Obtaining Information, Providing Self-Help and Strengthening the Self-Confidence of Person

Dilarom Gafurdjanova Tashmukhamedova ¹, Saida Safibullayevna Beknazarova²

^1. Candidate of medicine science, associate of professor, Tashkent, Uzbekistan

^2. Doctor of technical sciense, professor Audiovisual technologies of Tashkent University of Information Technologies named after Muhammad Al-Khwarizmi, Tashkent, Uzbekistan

saida.beknazarova@gmail.com

Abstract: This article describe how to use the information technologies in education, both in everyday life and for distance learning, is becoming increasingly widespread throughout the world. ICTs can significantly increase the chances of people getting an education at all levels. According to international experts, it is recommended that the legislation clearly establishes sanctions against the dissemination of prohibited information, including financial and administrative measures, to compile a list of prohibited information. Blocking, restricting the use of information on the internet, automatic filtering of content, firstly, these measures can’t provide security 100% effectively, and secondly, it undermines the reputation of the country, which is partially recognized as free. The widespread use of ICTs in knowledge acquisition can also promote family cohesion, promote family values, prevent adverse social conditions in families, and, above all, provide training in work and access to information and communication technologies. ICT provides an opportunity to organize remote work, the performance of professional duties by a freelancer at a distance from the location of the organization where he works (at home or in the center of telecommunications services), through telecommunications and computer equipment.

[Tashmukhamedova D.G., Beknazarova S.S. The Model of Use of ICT, Obtaining Information, Providing Self-Help and Strengthening the Self-Confidence of Person. Researcher 2020;12(6):1-8]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 1. doi:10.7537/marsrsj120620.01.

Keywords: the model of use of ICT, obtaining Information, social protection, support of people, adverse social conditions, families in need, self-help, freelancer.

Full Text

1

2

Properties of Solutions to the Cauchy Problem for Degenerate Nonlinear Cross-Systems with Absorption

Sadullaeva Shahlo Azimbayevna¹, Saida Safibullayevna Beknazarova², Abdurakhmanov Kaxar Patahovich³

^1.doctor of physical –mathematics science, vice rector of Tashkent University of Information Technologies named after Muhammad Al-Khwarizmi, Tashkent, Uzbekistan

sh.sadullaeva@tuit.uz

^2.doctor of technical science, professor Audiovisual technologies of Tashkent University of Information Technologies named after Muhammad Al-Khwarizmi, Tashkent, Uzbekistan

saida.beknazarova@gmail.com

^3.doctor of physical –mathematics science, professor of Physic of Tashkent University of Information Technologies named after Muhammad Al-Khwarizmi, Tashkent, Uzbekistan

k.abdurakhmanov@mail.ru

Abstract: This article describe the ways of development of methods and algorithms for visualization of processes in multicomponent media with two nonlinearities, for the divergent case taking into account convective transport. Visualization of nonlinear processes describing systems of reaction-diffusion processes with double nonlinearity in one-dimensional and multidimensional cases. To establish the properties of global solvability and time-unsolvability of solutions of a nonlinear mathematical filtration model in two-component media associated with non-local boundary conditions. Establish critical exponents of the Fujita type for a mathematical model for nonlinear filtration systems in two component media with source or absorption. The object of research is the qualitative properties of solutions of polytropical filtration systems in a two-component medium with non-local boundary conditions. In the article uses the nonlinear splitting algorithm, the method of reference equations, the method of comparing solutions, iterative numerical methods, methods of variable directions and runs.

[Sadullaeva Shahlo Azimbayevna, Saida Safibullayevna Beknazarova, Abdurakhmanov Kaxar Patahovich. Properties of Solutions to the Cauchy Problem for Degenerate Nonlinear Cross-Systems with Absorption. Researcher 2020;12(6):9-16]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 2. doi:10.7537/marsrsj120620.02.

Keywords: parabolic system of quasi-linear equations, cross-diffusion, variable density, source, absorption, numerical solution, iterative process, self-similar solutions, nonlinear boundary conditions.

Full Text

2

3

Design and Simulation of a Steam Turbine Generator using Observer Based and LQR 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: Steam turbine generator is an electromechanical system which converts heat energy to electrical energy. In this paper, the modeling, design and analysis of a simple steam turbine generator have done using Matlab/Simulink Toolbox. The open loop system have been analyzed to have an efficiency of 76.92 %. Observer based & linear quadratic regulator (LQR) controllers have been designed to improve the generating voltage. Comparison of this two proposed controllers have been done for increasing the performance improvement to generate a 220 Dc volt. The simulation result shows that the steam turbine generator with observer based controller has a small percentage overshoot with minimum settling time than the steam turbine generator with LQR controller and the open loop system. Finally, the steam turbine generator with observer based controller shows better improvement in performance than the steam turbine generator with LQR controller.

[Mustefa Jibril, Messay Tadese, Eliyas Alemayehu Tadese. Design and Simulation of a Steam Turbine Generator using Observer Based and LQR Controllers. Researcher 2020;12(6):17-21]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 3. doi:10.7537/marsrsj120620.03.

Keywords: Steam turbine, Generator, Observer based controller, linear quadratic regulator

Full Text

3

4

H ∞ and μ - synthesis Design of Coupled Tanks Level Control

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, the design and analysis of coupled tank water level control system is done using robust control theory. The main aim of this work is to improve level controlling mechanisms in industries and household areas. In this paper, H ∞ and μ –synthesis controllers are designed to improve the level control system. The coupled tank water level control system is designed using the proposed controller’s comparison and tested for tracking a reference level signals (step, sine wave and random) and simulation results have been analyzed successfully. Finally the comparative simulation results prove the effectiveness of the proposed coupled tank water level control system with H ∞ controller for improving the tracking mechanism performance of the system.

[Mustefa Jibril, Messay Tadese, Eliyas Alemayehu Tadese. H ∞ and μ - synthesis Design of Coupled Tanks Level Control. Researcher 2020;12(6):22-26]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 4. doi:10.7537/marsrsj120620.04.

Keywords: H infinity, μ –synthesis, robust control theory

Full Text

4

5

Construction Methods Commonly Used For Low Cost Housing Technology In Nigeria

^1*Akomolafe, M.A., ²Oluwagbemi, E.B. and ³Oyewo, O.W.

¹Osun State Polytechnic, Department of Building Technology, P.M.B 301, Iree, Osun State.

²Osun State Polytechnic, Department of Estate Management, P.M.B 301, Iree, Osun State.

³Osun State Polytechnic, Department of Quantity Surveying, P.M.B 301, Iree, Osun State.

* akomolafeayotade@gmail.com

Abstract: Adequate shelter for all people is one of the pressing challenges faced by the developing countries. The dream of owning a house particularly for low-income and middle-income families is becoming a difficult reality. Hence, it has become a necessity to adopt cost effective, innovative and environment-friendly housing technologies for the construction of houses and buildings for enabling the common people to construct houses at affordable cost. Census in the early Fifties showed that there were about 56 cities in the country and about 10.6 percent of the total population lived in these cities. This rose dramatically to 19.1 percent in 1963 and 24.5 percent in 1985. Today, the national population is estimated to be about 180 million with the urban population constituting about 60 percent. The phenomenal rise in population, number and size of our cities over the past few years have manifested in the acute shortage of dwelling units which resulted in overcrowding, high rents, poor urban living conditions, and low infrastructure services and indeed high crime rates. Various programs have been implemented to address housing problem. Despite all these interventions, Nigeria’s housing problems still remain intractable. This research compares construction cost for the traditional and low cost housing technologies. Nigeria are used as a case study for the investigation. Construction methods of foundation, walling, roofing and lintel are compared. Strength and durability of the structure, stability, safety and mental satisfaction are factors that assume top priority during cost reduction. It was found from the questionnaire analysis that about 26.11% and 22.68% of the construction cost can be saved by using low cost housing technologies in comparison with the traditional construction methods in the case studies for walling and roofing respectively. This proves that using low cost housing technologies is a cost effective construction approach for the industry.

[Akomolafe, M.A., Oluwagbemi, E.B. and Oyewo, O.W. Construction Methods Commonly Used For Low Cost Housing Technology In Nigeria. Researcher 2020;12(6):27-33]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 5. doi:10.7537/marsrsj120620.05.

Keywords: Environment-Friendly Housing Technologies, Low Cost Housing Technologies, Construction Cost, Construction Materials.

Full Text

5

6

Bioaccumulation Factors for Heavy Metals in the Muscles and Organ Tissues of Three Fish species from Baga, Lake Chad, Nigerian Sector.

I, Jonathan B.Y, Madu A.A. and Ibrahim, S.

Federal College of Freshwater Fisheries Technology, Baga, PMB 1060 Maiduguri, Borno State West Africa berny2025@yahoo.com; Telephone +2348066491547

Abstract: This study deals with bioaccumulation factors for heavy metals: Cadmium, (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), Manganese (Mn), and Zinc (Zn) in the Muscles and Organ tissues of three fish species, Clarias gariepinus, (C. gariepinus) and Oreochromis nilotians (O.niloticus), and Water from Baga, Lake Chad, Nigerian Sector. The aim of this study was to determine the bioaccumulation factors (BAFs) for heavy metals in the Muscles and Organ tissues of three fish species. The concentrations of heavy metals in the Muscles and Organ tissues were determined using energy dispersive X-rays florescence (EDXRF) and Atomic Absorption Spectrophotometer (AAS) was used to determine the heavy metals in water. The BAFs for heavy metals for heavy metals in the Muscles of three fish species are depicted in this pattern Cr> Pb> Cd> Mn> Zn> Cu. The presence of heavy metals in fish species are of great importance when their concentrations are not above the maximum permissible limits sets by World Health Organization (WHO). The essential heavy metals are accumulated with greater amount. The BAFs in the Muscles of Fish species are Cu (1446.00) and Zn (3240.00), and in the Organ tissues, Zn (1330.00) and Cu (1574.00). The values for the non-essential heavy metals are Cd (10.00) and Pb (11.60) in the Muscles and Cd (200.00) and Pb (4.20) in the Organ tissues of fish species.

[I, Jonathan B. Y, Madu A. A. and Ibrahim, S. Bioaccumulation Factors for Heavy Metals in the Muscles and Organ Tissues of Three Fish species from Baga, Lake Chad, Nigerian Sector. Researcher 2020;12(6):34-37]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 6. doi:10.7537/marsrsj120620.06.

Keyword: Bioaccumulation Heavy Metal Fish; Muscles and Organ tissues; Lake

Full Text

6

7

Hyaluronic Acid Level for assessment of Liver Fibrosis in β-Thalassemia Children Treated for Hepatitis C Virus by Direct Acting Antiviral Drugs

Mohamed Mahmoud Yousif Abu-Elazm¹, Eslam El-Sayed El-Hawary², Aml Saaid El-Bendary³, Mohiee El-Deen AbdEl-Aziz Awad⁴, Mohamed Ramadan El-Shanshory⁵

¹Demonstrator of Pediatrics, Faculty of Medicine, Tanta University.

²Lecturer of Pediatric Hematology, Faculty of Medicine, Tanta University.

³Professor of Clinical Pathology, Faculty of Medicine, Tanta University.

⁴Professor of Pediatric Hepatology, Faculty of Medicine, Tanta University.

⁵Professor of Pediatric Hematology, Faculty of Medicine, Tanta University.

Email: eslam.elhawary@med.tanta.edu.eg;  Mobile: 02 01090044779

Abstract: Background: Direct acting antiviral drugs (DAAs) (Ledipasvir/Sofosbuvir) can contribute to improvement and prevent progression of liver fibrosis in children with β- thalassemia infected with hepatitis C virus (HCV). Objective: The aim of this study was to assess liver fibrosis by measuring serum hyaluronic acid (HA) in β-Thalassemia children infected with HCV before and after DAAs (Ledipasvir/Sofosbuvir) therapy. Patients and Methods: 50 children with β- thalassemia, who had chronic HCV infection, aged 12 -18 years, were treated by DAAs for 12 weeks. They were evaluated before and 12 weeks after the end of treatment by PCR for HCV. Liver fibrosis was evaluated before and after treatment by serum HA and Aspartate aminotransferase to platelet ratio index (APRI). Results: Assessment of liver fibrosis with APRI before and after treatment with DAAs demonstrated a statistically significant reduction in the number of patients with severe fibrosis, and redistribution of cases into the less severe classes (P.Value 0.039). There was significant reduction in fibrosis-4 index and serum HA after treatment in comparison to their pretreatment values (P.Value <0.001). Conclusion: HA was reduced together with improved APRI after treatment of HCV infection in children with thalassemia using DAAs, which indicates improvement of liver fibrosis.

[Mohamed Mahmoud Yousif Abu-Elazm, Eslam El-Sayed El-Hawary, Aml Saaid El-Bendary, Mohiee El-Deen AbdEl-Aziz Awad, Mohamed Ramadan El-Shanshory. Hyaluronic Acid Level for assessment of Liver Fibrosis in β-Thalassemia Children Treated for Hepatitis C Virus by Direct Acting Antiviral Drugs. Researcher 2020;12(6):38-43]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 7. doi:10.7537/marsrsj120620.07.

Key Words: Hyaluronic Acid, Liver Fibrosis, β-Thalassemia, Hepatitis C Virus, Direct Acting Antiviral Drugs

Full Text

7

8

Aesthetic Experience Based on Feeling in Literary Works

Dong Lijuan

Qiqihar from Heilongjiang Province, master degree, associate professor, art college of Northeast Agricultural University, Research direction: film art theory and aesthetics.

Abstract: Jill Deleuze proposed that the aesthetics based on sensibility is different from rational aesthetics. In the aesthetic paradigm beyond empiricism, the idea that "art is the aggregation of sensations" is formed, and Deleuze's works are deeply combined in the article. In the understanding of feelings, perceptions, and feelings, it focuses on the aesthetic experience of sensations at different intensities in literary and artistic creation, and explores the significance of Deleuze's modern aesthetics for literary and artistic creation and aesthetics.

[Dong Lijuan. Aesthetic Experience Based on Feeling in Literary Works. Rep Opinion 2020;12(6):44-47]. ISSN 1553-9873 (print); ISSN 2375-7205 (online). http://www.sciencepub.net/report. 8. doi:10.7537/marsroj120620.08.

Keywords: feeling; perception; generation

Full Text

8

9

Exploration and Construction of Virtual Reality News Communication Model

Xue Yongzeng¹, Wang Yufei*²

^1.Lecturer, School of Architecture, Harbin Institute of Technology, Harbin, China.

^2.Corresponding author. Mechanical and Electronic Engineering, Harbin Institute of Technology, Heilongjiang Harbin, China

Abstract: As an up-to-date technology, the appearance of Virtual Reality News has greatly impacted and changed the current situation of news media. For the vivid experience, the completely open scene and the free exploration depth. Virtual reality news has the enormous superiority in the information dissemination, by which it will be suitable to explore the domain that the traditional ways difficult to reach. In the era of 5G and big data, it is possible for virtual reality news to spread with high speed and low delay time. But just like the beginning of all kinds of new things, the real popularization and acceptance of virtual reality news needs the support of Technology and concept. It needs the joint efforts of all walks of life and the promotion of opportunities. Its future is revolutionary and historic.

[Xue Yongzeng, Wang Yufei. Exploration and Construction of Virtual Reality News Communication Model. Rep Opinion 2020;12(6):48-51]. ISSN 1553-9873 (print); ISSN 2375-7205 (online). http://www.sciencepub.net/report. 9. doi:10.7537/marsroj120620.09.

Keywords: Virtual Reality; Virtual Reality News; Media Communication; 5G

Full Text

9

10

Modelling Design and Control of an Electromechanical Mass Lifting System using Optimal and Robust control Method

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, an electromechanical mass lifter system is designed, analyzed and compare using optimal and robust control theories. LQR and μ -synthesis controllers are used to improve the lift displacement by comparison method for tracking the desired step and sinusoidal wave signals input. Finally, the comparison simulation result prove the effectiveness of the electromechanical mass lifter system with μ -synthesis controller for improving the rise time, percentage overshoot, settling time and peak value of tracking the desired step displacement signal and improving the peak value for tracking the desired sinusoidal displacement signal with a good performance.

[Mustefa Jibril, Messay Tadese, Eliyas Alemayehu Tadese. Modelling Design and Control of an Electromechanical Mass Lifting System using Optimal and Robust control Method. Researcher 2020;12(6):52-57]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 10. doi:10.7537/marsrsj120620.10.

Keywords: μ –synthesis, linear quadratic regulator, optimal control, robust control

Full Text

10

11

Control and Prevention of Infectious Bursal Disease

Zeinab M. S. Amin Girh¹, Nagwa S. Rabie¹ and Mona S. Zaki²

¹Department of Poultry Diseases, National Research Centre, Dokki, Giza, Egypt.

²Hydrobiology Department, National Research Centre, Dokki, Giza Egypt

Abstract: Infectious Bursal Disease (IBD) is an acute, highly contagious, immunosuppressive viral disease of young chickens; IBDV predominantly targets B-cells residicing in the bursa of Fabricius (BF) and results in bursal edema, atrophy, and abrogation of antibody responses. Significantly, IBD-induced immunosuppression increases the occurrences of other diseases caused by opportunistic pathogens and, thus, prevents young chickens from responding optimally to vaccines. Owing to its widespread nature, high morbidity and mortality rates, IBD has been given a considerable economic importance both at the international and national levels and is of growing scientific interest. Most of the economic losses associated with IBD are due to its immunosuppressive effects that eventually lead to poor vaccination response, secondary bacterial, viral and protozoan infections and poor performance. The disease is mainly controlled by rigorous sanitary measures and vaccination through the use of either live or killed vaccines.

[Zeinab M. S. Amin Girh, Nagwa S. Rabie and Mona S. Zaki. Control and Prevention of Infectious Bursal Disease. Nat Sci 2020;18(6):58-65]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature. 11. doi:10.7537/marsnsj180620.11.

Keywords: Infectious Bursal Disease, Fabricius, IBDV

Full Text

11

12

COVID-19 Pandemic And Its Economic Shocks In Nigeria

^1*Akomolafe A.A., ²Awogbemi C.A. ³Oladimeji A.O., ⁴Akomolafe M.A and ⁵Yusuf T.O

¹Department of Statistics, Federal University of Technology, Akure, Nigeria

²Department of Statistics, National Mathematical Centre, Kwali, Abuja, Nigeria

³Department of Statistics, Osun State College Technology, Esa-Oke, Nigeria

⁴Department Of Building Construction, Osun State Polytechnic, Iree, Osun State

⁵National institute for educational planning and administration, Ondo

*Corresponding Author: akomolafeayotade@gmail.com

Abstract: Emerging infectious diseases are a major challenge in the 21st century, in recent years, worldwide outbreaks of Ebola and Middle East Respiratory Syndrome caused great health and economic losses. The ongoing new coronavirus pneumonia (Corona Virus Disease 2019, COVID-19) outbreak is now a global public health problem. This research paper considered COVID-19 Virus spreading shocks on Nigerian economy and adopted a historical-analytical approach to study the interplay of factors deepening the impact of the shocks, the new phenomenon of demand-shock effect alongside a supply-side shock effect implies that the length and cost of these shocks could significantly inflict a colossal economic downturn on the economic outlook in emerging and developing economies like Nigeria. Thus, as of May 9, 2020 with the results of statistical data processing, it is difficult to predict the future spread-reduction variables of the pandemic.

[Akomolafe A.A., Awogbemi C.A. Oladimeji A.O., Akomolafe M.A and Yusuf T.O. COVID-19 Pandemic And Its Economic Shocks In Nigeria. Researcher 2020;12(6):66-77]. ISSN 1553-9865 (print); ISSN 2163-8950 (online). http://www.sciencepub.net/researcher. 12. doi:10.7537/marsrsj120620.12.

Keywords: Acute Respiratory Syndrome, of demand-shocks, supply-side shocks, Virus, spread-reduction variables

Full Text

12