scholarly journals The Development of Telecommunication Networks in Angola Republic

Telecom IT ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 1-9
Author(s):  
T. Nzinga ◽  
A. Koucheryavy
Keyword(s):  
System Analysis ◽  
Telecommunication Network ◽  
Telecommunication Networks ◽  
Practical Relevance ◽  
Research Subject ◽  
Development Method ◽  
The Republic

Research subject. The article is devoted to the analysis of the development of telecommunication net-works in the Republic of Angola and the prospects for their development Method. System analysis. Core results. Determination of promising areas of research in the development of communication net-works in terms of their creation in sparsely populated and hard-to-reach areas. Practical relevance. The results of the article can be used to modernize the telecommunication network of the Republic of Angola.

scholarly journals Coverage in the Wireless Sensor Networks: Analysis and Perspective Investigation Areas

Telecom IT ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 55-62
Author(s):  
D. Vorobyova ◽  
A. Koucheryavy
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
System Analysis ◽  
Educational Process ◽  
Telecommunication Networks ◽  
Wireless Sensor ◽  
Practical Relevance ◽  
Research Subject ◽  
Scientific Organizations ◽  
Networks Analysis

Research subject. The article is devoted to analysis of related works and perspective investigation areas to coverage in the wireless sensor networks. Method. System analysis. Core results. The identification of development perspectives of a coverage in the wireless sensor networks. Practical relevance. The results of the article can be used by scientific organizations when planning the development of telecommunication networks, as well as universities in the educational process.

scholarly journals THE MULTI-ACCESS EDGE COMPUTING APPLICATIONS AND DEVELOPMENT ANALYSIS FOR TELECOMMUNICATION NETWORKS

Telecom IT ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 28-33 ◽  
Author(s):  
D. Kashkarov ◽  
A. Koucheryavy
Keyword(s):  
System Analysis ◽  
Educational Process ◽  
Edge Computing ◽  
Telecommunication Networks ◽  
Practical Relevance ◽  
Research Subject ◽  
Fifth Generation ◽  
Scientific Organizations ◽  
Multi Access ◽  
Development Analysis

Research subject. The article is devoted to the analysis of the applications and development the multi-access edge computing on fifth-generation and beyond telecommunication networks. Method. System analysis. Core results. The identification of development perspectives of a multi-access edge computing on fifth-generation and beyond telecommunication networks. Practical relevance. The results of the article can be used by scientific organizations when planning the development of telecommunication networks, as well as universities in the educational process.

scholarly journals THE DENSE OF DEVICES ANALYSIS FOR 5G NETWORKS

Telecom IT ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 22-27
Author(s):  
E. Tonkikh
Keyword(s):  
System Analysis ◽  
Educational Process ◽  
Telecommunication Networks ◽  
Practical Relevance ◽  
Research Subject ◽  
5G Networks ◽  
Fifth Generation

Research subject. The article is devoted to the analysis of the characteristics of the density of devices in fifth-generation telecommunication networks. The characteristics of the density of devices and their influence on the structure of fifth-generation telecommunication networks are considered. Method. System analysis. Core results. The scientific tasks in the field of building highdense and ultra high-dense telecommunication networks of the fifth generation and subsequent are determined. Practical relevance. The results of the article can be used by scientific and design organizations when planning the development of telecommunication networks, as well as universities in the educational process.

ASSESSMENT OF THE STRUCTURAL RELIABILITY OF TELECOMMUNICATION NETWORKS OF UNCERTAIN TOPOLOGY BASED ON IMITATION MODELING

2019 ◽  
Author(s):  
Nina Kniazieva ◽  
Alexey Nenov ◽  
Irina Kolumba
Keyword(s):  
Computer Model ◽  
Structural Reliability ◽  
Telecommunication Network ◽  
Structural Characteristics ◽  
Telecommunication Networks ◽  
Network Graph ◽  
Imitation Modeling ◽  
Average Total Number ◽  
Structural Methods

This article is devoted to the analysis of existing and the development of new approaches to assess the structural reliability of networks with an uncertain topology. Ensuring reliability in modern telecommunication networks is becoming an increasingly important issue in connection with the intensive development of these networks over the past decade. Existing structural methods for evaluating reliability are focused on applications for networks with a known structure. However, in cases where the network topology is constantly changing, these methods are of little use. Therefore, an approach is proposed for obtaining estimates of the structural reliability of telecommunication networks with an uncertain topology based on the use of basic structural characteristics alone. The developed method for assessing the reliability of telecommunication networks with an uncertain topology is presented, which provides the ability to determine: the total number of routes in the network with a certain number of nodes and branches; the number of routes per one connection, as well as the number of routes of rank no more than the allowable value that can be used for one connection. The upper limit of the structural reliability of individual connections are determined by the routes obtained for each connection), on the basis of which the structural reliability of a network with an uncertain topology is evaluated. A simulation computer model has been created for assessing the structural reliability of a telecommunication network with an uncertain topology, which consists of a computer model that empirically estimates the number of routes in various implementations of obtaining indicators of the structural reliability of communication between a pair of nodes and the entire network as a whole. A simulation experiment of computer modeling with given structural characteristics consists of a series of tests, in each of which a specific random implementation of a network graph is generated and all the routes existing in it are searched. The article presents the main functions and components of the developed software system, the figures show the modules and the basic algorithms of the model. Interfaces for inputting initial data and for outputting simulation results in the form of values ​​of the number of routes based on the results of simulation experiments and corresponding graphs are demonstrated. A  separate important issue that is solved in the simulation is the determination of a  sufficient number of tests in an experiment. The criterion for assessing this modeling parameter was the deviation dynamics of the average total number of routes of ranks 1 through 4 obtained in the tests.

Time and Latitude in South Africa

1972 ◽  
Vol 1 ◽  
pp. 27-38
Author(s):  
J. Hers
Keyword(s):  
South Africa ◽  
Cape Town ◽  
Astronomical Observations ◽  
Royal Observatory ◽  
The Republic ◽  
Astronomical Determination ◽  
Limited Accuracy ◽  
Better Than

In South Africa the modern outlook towards time may be said to have started in 1948. Both the two major observatories, The Royal Observatory in Cape Town and the Union Observatory (now known as the Republic Observatory) in Johannesburg had, of course, been involved in the astronomical determination of time almost from their inception, and the Johannesburg Observatory has been responsible for the official time of South Africa since 1908. However the pendulum clocks then in use could not be relied on to provide an accuracy better than about 1/10 second, which was of the same order as that of the astronomical observations. It is doubtful if much use was made of even this limited accuracy outside the two observatories, and although there may – occasionally have been a demand for more accurate time, it was certainly not voiced.

HADIS KURAIB DALAM KONSEP RUKYATUL HILAL

1970 ◽  
Vol 13 (2) ◽  
Author(s):  
Muslih Husein
Keyword(s):  
The West ◽  
The Earth ◽  
New Moon ◽  
The Republic

Hisab dan rukyat, hakikatnya, adalah cara untuk mengetahui pergantian bulan. Kajian ini memperlihatkan beberapa temuan. Pertama, korelasi antara hadis Kuraib dan terjadinya perbedaan penetapan awal Ramadan, Syawal, dan Dzul Hijjah di Indonesia. Kementerian Agama Republik Indonesia telah menetapkan bahwa Indonesia secara keseluruhan menjadi satu wilayah hukum (wilayatul hukmi). Kedua, tentang keberhasilan rukyat al-hilal di satu kawasan yang diberlakukan bagi kawasan lain di muka bumi. Perlu diketahui bersama bahwa visibilitas pertama hilal tidak meliputi seluruh muka bumi pada hari yang sama, melainkan membelahnya menjadi dua bagian: (1) bagian sebelah Barat yang dapat melihat hilal dan (2) bagian sebelah Timur yang tidak dapat melihat hilal.Hisab and rukyat is a way to know the turn of the month. This study shows several findings. First is the correlation between Kuraib traditions and differences in the determination of the beginning of Ramadan, Shawwal, and Dhul-Hijjah in Indonesia. Ministry of Religious Affairs of the Republic of Indonesia has stated that Indonesia as a whole into a single jurisdiction (wilayatul hukmi). Second, on the success rukyat alhilal in one area that applied to other regions of earth. Important to know that the first visibility of the new moon does not cover the entire face of the earth on the same day, but splitting it into two parts: (1) part of the West to see the new moon, and (2) part of the East were not able to see the new moon.

Determination of integral indicators characterizing the possibility of accommodating the evacuated population in the territory of the Republic of Kazakhstan

2020 ◽  
pp. 154851292097028
Author(s):  
Yernar Zh Akimbayev ◽  
Zhumabek Kh Akhmetov ◽  
Murat S Kuanyshbaev ◽  
Arman T Abdykalykov ◽  
Rashid V Ibrayev
Keyword(s):  
Statistical Data ◽  
Armed Conflicts ◽  
Security Issues ◽  
Inaccurate Information ◽  
The Subject ◽  
The Republic ◽  
The Impact ◽  
Integrated Indicators ◽  
Selection Of

Studying the historical facts of past wars and armed conflicts and natural and man-made emergencies, today in the Republic of Kazakhstan one of the most important security issues is the preparation and organization of the evacuation of the population from possible dangerous zones, taking into account the emergence of new threats to the country’s security. The paper presents an algorithm for constructing universal scales of the distribution function of opportunities by types of support and rebuilding them into subject scales using display functions. The purpose of the paper is to determine the integral indicators characterizing the possibility of accommodation of the evacuated population and the impact on resources during relocation. On the subject scales of cities and districts of the region, indicators of the possibility of relocation of a certain amount of the evacuated population by types of support and indicators characterizing the impact on the district’s resources during resettlement of a certain amount of the evacuated population are determined. It was concluded that the use of integrated indicators allows the selection of areas to accommodate the evacuated population without the use of statistical data, in conditions of incomplete and inaccurate information. The presented method does not replace traditional methods based on classical methods of territory assessment by the level of life sustenance, but also allows their reasonable combination with the experience of specialists in this field, taking into account the incompleteness, uncertainty, and inconsistency of the initial data of the study area, which does not allow the application of existing methods.

True Dawn: the defi nition by the Sharia and the terminology of astronomers

2021 ◽  
Vol 14 (3) ◽  
pp. 625-644
Author(s):  
M. Z. Maghomedov
Keyword(s):  
Visual Observation ◽  
Arab Countries ◽  
The Sun ◽  
Exact Time ◽  
Mathematical Calculation ◽  
The Republic ◽  
Morning Prayer

The object of the research is the problem of determining the exact time of the True Dawn onset (al-fajr as-sadik), with which the rituals of fasting and praying begin in Islam, as well as the completion of the rite of standing (wukuf) on Mount Arafat during the Great Pilgrimage (hajj), and its diff erence from the so-called “False” Dawn. (al-fajr al-kazib).  The paper presents the Hadiths describing the signs of these two astronomical phenomena and reveals the results of visual observation of the onset of the True Dawn’s exact time in a number of Arab countries and in the Republic of Dagestan according to the mathematical calculation of the angle of the Sun inclination and the degree of the Sun position (azimuth) towards the horizon of the observed terrain during the true dawn.  The study was based on the determination of the onset of the morning prayer exact time according to the methodology of mathematical calculations by astronomers of the early and late periods, and of the authoritative Muslim jurists (faqihs) as well.

MYCOTOXINS IN BEANS OF PEANUTS GROWN IN TAJIKISTAN

2018 ◽  
Vol 1 (4) ◽  
pp. 74-77
Author(s):  
Sh. I. Razokov ◽  
◽  
D. M. Mirzoev ◽  
G. P. Kononenko ◽  
A. A. Burkin ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Immunosorbent Assay ◽  
Cyclopiazonic Acid ◽  
Practical Significance ◽  
Enzyme Linked Immunosorbent Assay ◽  
Test Systems ◽  
The Republic ◽  
Combined Contamination

The article presents the results of an extensive mycotoxicological examination of 11 samples of peanut beans grown in two regions of the Republic of Tajikistan. The determination of 16 mycotoxins was carried out by indirect competitive enzyme-linked immunosorbent assay using commercial and certified research test systems. It has been established that for peanut beans in this area, a combined contamination by a group of sanitary-significant mycotoxins, including diacetoxyscirpenol, alternariol, ochratoxin A, PR-toxin and cyclopiazonic acid, is characteristic. The prospects of further research and the practical significance of the results are discussed.

MYCOTOXINS AND TOXIN-PRODUCING MICROSCOPIC FUNGI IN COTTON-SEED CAKE FROM TAJIKISTAN

2019 ◽  
Vol 1 (1) ◽  
pp. 31-38
Author(s):  
G. P. Kononenko ◽  
◽  
E. A. Piryazeva ◽  
E. V. Zotova ◽  
Sh. I. Razokov ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Aflatoxin B1 ◽  
Cotton Seed ◽  
Practical Significance ◽  
Microscopic Fungi ◽  
Seed Cake ◽  
Complex Study ◽  
The Republic ◽  
Toxin Formation

The article presents the results of complex study of cotton-seed cake from the Republic of Tajikistan, including the determination of content of mycotoxins, the analysis of exposure to microscopic fungi and the assessment of the potential of their toxin formation. The ability to produce mycotoxins was established for 11 species of micromycetes belonging to the genus Aspergillus, Penicillium, Fusarium, Scop-ulariopsis, and Trichothecium. Alternariol, zearalenone, fu-monisins, aflatoxin B1, sterigmatocystin, ochratoxin A, citrinin and emodin were found in the composition of the cotton-seed cake. Prospects for further research and the practical significance of the results are discussed.

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