bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH PLANT GROWTH PROMOTING RHIZOBACTERIA TERHADAP BIOLOGI DAN STATISTIK DEMOGRAFI Thrips parvispinus (THYSANOPTERA: THRIPIDAE) PADA CABAI
Authors: Hutasoit Rudi Tomson
Published: February 2020

Plant Growth Promoting Rhizobacteria (PGPR) is a group of bacteria that have been used as a bio-fertilizer to promote the nutrient plants supply and strengthen against plant pests and diseases. The aim of this study is knowing PGPR effect on long bean toward biology and demographic statistic Thrips parvispinus. The study was conducted by observing the development of the Thrips parvispinusfrom eggs to adulton chili pepper leaves with PGPR application or non-PGPR (control). The collected data were used to obtain information about the biology of the pest such as the stadia of each instar, preoviposition period, life cycle, adult longevity and fecundity. The data were also used to construct life tables for demographic statistic analysis using of the Jackknife method. PGPR usage have impact on thebiology of T. parvispinus such aslife cycle, longevity and fecundity. Gross reproduction rate (GRR), net reproductive rate (Ro), and intrinsic rate of increase (r) T. parvispinus with PGPR aplications lower than controls. PGPR can inhibit a doubling time (DT) T. parvispinus becomes longer than controls. Keywords: demographic statistics, life cycle, T. parvispinus
HUBUNGAN STATUS GIZI SISWI SMP DI PEDESAAN DAN PERKOTAAN TERHADAP POLA SIKLUS MENSTRUASI
Authors: Siregar Anggi Nadra Hanum , Rusly Dewi Karlina , Rizarullah Rizarullah
Published: February 2020

Masa remaja merupakan masa transisi atau peralihan dari masa anak-anak menuju dewasa yang ditandai adanya perubahan fisik, psikis dan psikososial. Pada remaja putri, pubertas ditandai dengan permulaan menstruasi (menarche). Pada remaja putri dibutuhkan status gizi yang baik dalam membantu pertumbuhan remaja termasuk keteraturan siklus menstruasi. Remaja putri yang mengalami asupan gizi kurang atau lebih dapat menyebabkan gangguan fungsi reproduksi dan berdampak pada gangguan menstruasi. Tujuan penelitian untuk mengetahui hubungan status gizi dengan siklus menstruasi pada remaja putri di SMP perkotaan dan pedesaan. Desain penelitian yaitu metode koleratif dengan rancangan cross sectional, populasi yaitu semua remaja putri yang memenuhi kriteria inklusi. Sampel penelitian ini 120 responden termasuk 60 responden daerah pedesaan dan 60 responden dari daerah perkotaan yang didapat dengan menggunakan teknik purposive sampling. Instrumen yang digunakan yaitu kuesioner siklus menstruasi dan lembar obeservasi hasil pengukuran berat badan dan tinggi badan yang dilakukan. Hasil uji statistik menggunakan uji Chi Square pada tingkat kemaknaan 95% (α ≤ 0,05), kemudian diperoleh dipedesaan dengan nilai p = 0.401 sedangkan diperkotaan dengan nilai p = 0.203. Ini berarti bahwa nilai p >α (0,05). Dengan demikian bahwa tidak terdapat hubungan yang bermakna antara status gizi dengan siklus menstruasi pada remaja putri di remaja putri di SMP perkotaan dan pedesaan. Dan juga tidak ada perbedaan secara signifikan semua variabel. Saran untuk remaja putri agar lebih menjaga status gizi dan memelihara kesehatan reproduksi mereka agar siklus menstruasi mereka menjadi teratur.
PENINGKATAN HASIL BELAJAR PKN MELALUI METODE SIMULASI PADA SISWA KELAS VII SMP NEGERI 2 MARBAU LABUPATEN LABUHANBATU UTARA TAHUN PELAJARAN 2016/2017
Authors: Junita Junita , Rohana Rohana
Published: February 2020

Tujuan dari penelitian ini adalah untuk mengetahui peningkatan hasil belajar PKn siswa yang di belajarkan dengan metode ceramah dengan hasil belajar PKn siswa yang dibelajarkan dengan metode Simulasi pada materi perlindungan dan penegakan HAM di kelas VII Negeri 2 Kabupaten Labuhanbatu Utara Tahun Pelajaran 2016/2017. Penelitian ini menggunakan Quasi Eksperimen populasi dalam penelitian ini adalah seluruh siswa kelas VII SMP Negeri 2 Marbau Kabupaten Labuhanbatu Utara berjumlah 240 yang terdiri dari 6 kelas, yakni : kelas VII 1 = 37 orang, kelas VII 2 = 40 orang, kelas VII 3 = 40 orang, kelas VII 4 = 41 orang, kelas VII 5 = 41 orang. Maka jumlah total populasi = 240 orang siswa. Sampel yang di tetapkan sebagai kelas terkontrol yaitu kelas VII 2 = 40 orang dan kelas yang diberi perlakuan metode simulasi kelas VII 1 = 37 orang. Sampel yang di tetapkan sebagai kelas terkontrol yaitu kelas VII 1 = 37 orang dan kelas yang diberi perlakuan metode simulasi kelas VII 2 = 40 orang. Variabel penelitiannya yaitu : variabel bebasnya : metode simulasi dan variabel terikat : Hasil belajar. Pembelajaran dengan menggunakan metode simulasi efektif dalam meningkatkan prestasi belajar siswa yang ditandai dengan peningkatan ketuntasan belajar siswa. Kesimpulan dari penelitian ini adalah penerapan metode pembelajaran Guided Discovery mempunyai pengaruh positif, yaitu dapat meningkatkan motivasi belajar siswa yang ditunjukkan dengan rata-rata jawaban siswa yang menyatakan bahwa siswa tertarik dan berminat dengan metode pembelajaran Guided Discovery sehingga mereka menjadi termotivasi untuk belajar.
MODERN APPS AND PLATFORMS FOR THE ROBOTS
Authors: Luntovskyy Andriy
Published: February 2020

Nowadays, the number of robots that co-operate with the humans, machines and with each other in various fields of manufacturing and economics, everyday life, entertainment industry, social pedagogy is growing rapidly.Server-free mobile additions are widely used in robotics: applications that are built directly into the actuators and mechanisms; Cloud-oriented applications and others.As a result of the shifted emphasis on performance, energy and algorithms efficiency of addition and platforms for robotics in the future will develop with optimization of the following algorithms: unlimited movements of the robot and its orientation in 3D space; Detection of collisions of robot body (autonomous relative location) with prevention of dead end situation; Routing of autonomous ride and flight for unmanned devices, auto and drone in.ROS (Robot Operating System) for personal robots - known robotics platform today popular in industry and academic institutions. ROS includes the following architectural components: Package Management components; Abstract layer for hardware and hardware (Hardware Abstraction Layer) and device drivers; components with communication and messaging functions between Middleware programs or parts and Websites.Swarm works can be programmed to simulate 2d-forms, which are inherent in flocks of insects, fish, and birds. Researchers have managed to provide Swarm with their own coordination, which forms a significant step in the development of collective artificial intelligence Hundreds of robots cooperate in the field of cleaning the environment from the consequences of natural disaster, others model social processes.The paper is dedicated to the important scientific-practical problem of the use of modern mobile serverless apps, which are capable to autonomous operation, and robotics supporting platforms, in particular, to their classification and standardization. The scenarios for the use of robots that focus not only on manufacturing and modeling processes in the industry but also for behavioral modeling, amomg them on the use of robots in pedagogy and sociology, are considered.
ANTENNAS OF MOBILE TERMINALS IN MODERN MOBILE COMMUNICATION NETWORKS (OVERVIEW)
Authors: Popov Valentin , Skudnov Vladimir , Vasilyev Alexey
Published: February 2020

In connection with the development of technology of mobile terminals (cell phones, smartphones, tablets, computers with wireless modems, etc.) in the standards of UMTS (3G) and LTE (4G) great attention of manufacturers of these devices is concentrating on the modernization and development of antenna systems of mobile stations (terminals).
Currently, antenna systems of mobile stations is implementing on base of technology in form of complex configuration microstrip transmission lines, which ensure compliance with the requirements of modern wireless communication standards. Adaptive antenna arrays and MIMO antenna systems are implemented in mobile terminals for road and railway transport, which allow to achieve a sustainable reception of signals from the base stations.
As you know, the difficult conditions for the propagation of radio waves in cellular mobile communication systems are associated with their absorption, multiple reflection and scattering. In these cases, the laws that are true for the line of sight conditions (LOS, Line of Sight) no longer work. The properties of antennas integrated into mobile terminals (mobile stations - MS (Mobile Station)) directly depend on the statistical characteristics of the environment and the location of the operating terminal relative to the spatial position of the user. Therefore, when designing MS antennas in UMTS and LTE mobile communication systems in the frequency ranges from 450 to 3700 MHz, it is important to consider all of the above factors.
ALGORITHM FOR THE IMPLEMENTATION OF THE STRATEGY OF CONTROLLED SOCIAL IMPACTS IN THE INFORMATION SPACE
Authors: Klymash Mykhailo , Baydoun Najm Ahmad , Demydov Ivan
Published: February 2020

For the implementation of all three levels of targeting of target audience for key message delivery complexes in e-government platforms, it is possible to use meta-information locking systems using DPI technologies. Algorithms and generalized strategies for managing social impact are developed by the authors of this publication.
This paper briefly discusses the overall statement of the task of implementing a managed social impact strategy in the information space based on hybrid information communication platforms. A graphical and algorithmic description of information operations related to the targeted distribution of a given information content and to the collection of data on the reactionary changes in the preferences of particular groups of users in the relevant social information environments is presented. Classification of types of digital services user profiles in the information space has been made, which can be practically useful in the development of e-government systems based on modern ICT tools. A brief description of the profiling process for creating a target audience for the purpose of conducting these information operations on the basis of information communication platforms operating in an open internet space. The authors find it effective to move to hybrid cloud communications technologies to implement the processes discussed in the article. The need for the attention of the state to the issues raised in this work is undoubted, since the benefits of active interaction with society are not only the conduct of certain information campaigns, but its consequence is, in fact, the achievement of the pinnacle of the process of informatization of society in the postindustrial era, which directly contributes to the consolidation of a single monolithic nation.
USING SENSITIVITY FUNCTION FOR CONGESTION CONTROL IN TELECOMMUNICATION NETWORK
Authors: Toroshanko Yaroslav
Published: February 2020

The scheme of control of congestion with the use of feedback on the sign of the sensitivity function of productivity of the telecommunication network is considered. The performance sensitivity sign (target function) provides the optimal direction for adjusting the speed of the data source. The most common scheme for controlling binary feedback feedback messages about possible network congestion is to detect and set the congestion bit based on the length of the incoming packet queue. The main advantage of a queue-based scheme is its low complexity: the length of the queue can be controlled by a single counter. However, this method can create large queues in network nodes. Detecting the created mash should be delayed for some time to create the queue. Similarly, the detection of a congestion solution is also delayed by the time required to process the queue. To determine the sensitivity function of the network performance, it is proposed to use a simple neural network model of the dynamic system. The developed optimal control algorithm provides the formation of a control signal in such a way that the output of the system is as close as possible to the pre-established characteristics of the network. The model for the backtroque prediction of the queue state is proposed. The results of the simulation of the performance of the proposed scheme show that the scheme based on sensitivity has better performance compared with the usual scheme of choosing the threshold. A sensitivity-based circuit gives smaller variations in queue size and source speeds. Moreover, fluctuations are not significantly different, even if there are large changes in the service speeds of bottlenecks in the telecommunication network or its fragments.
RADIOMEASURING GAS CONCENTRATION TRANSDUCER BASED ON TRANSISTOR STRUCTURE WITH NDR FOR THE DIAGNOSIS OF STRAINS OF THE BACTERIUM HELICOBACTER PYLORI
Authors: Osadchuk Alexander , Osadchuk Neonila , Osadchuk Jaroslav
Published: February 2020

The article discusses a radiomeasuring gas concentration transducer for the diagnosis of strains of the bacterium Helicobacter pylori. One of the promising directions in the construction of gas concentration transducers for respiratory diagnostics is the use of gas concentration frequency transducers based on the reactive properties of transistor structures with negative differential resistance (NDR). This type of transducers allows you to solve the problem of using analog-to-digital converters, because it implements the method of converting "informative signal - frequency", which is one of the best for further processing on a computer. Theoretical and practical studies have shown that using the reactive properties of semiconductor devices and transistor structures in which there is a negative differential resistance, it is possible to significantly increase the sensitivity and accuracy of measuring gas concentration, in particular NH3. The authors proposed and studied a gas concentration measuring transducer, which is built on the basis of a transistor structure with negative differential resistance and a gas-sensitive element to NH3. With a change in gas concentration, the conductivity of the sensitive element changes, which adsorbs NH3 molecules, which in turn changes the active and reactive components of the impedance of the transistors structure. The reactive component of the impedance of the transistors structure is capacitive in nature. This capacitance is part of the total capacitance that occurs at the electrodes of the drain of a double-gate MOS transistor and collector of a bipolar transistor, which together with the inductance L form a resonant oscillatory circuit. A dynamic mathematical model of the frequency transducer of gas concentration by the method of variable states is developed. The dynamic model of the self-generating secondary transducer of gas concentration allows you to determine the value of the frequency of the output signal depending on the change in gas concentration at any time. Analytical expressions of the transformation function and sensitivity equations are obtained. The sensitivity of the developed device for the diagnosis of strains of the bacterium Helicobacter pylori ranges from 2.1 kHz/ppm to 3.4 kHz/ppm.
THE PERFORMANCE OF A STOCHASTIC CORPORATE NETWORK CONTROL SYSTEM
Authors: Kushnir Nikoaj , Semenko Anatoly , Kosovan Georgij , Bokla Natalija , Shestopal Yevhen
Published: February 2020

In telecommunications, a particular place belongs to systems with a wideband noise-free signal, the undisputed advantage of which is increased by both narrowband and wideband interference, confidentiality of information transmission, as well as electromagnetic compatibility with adjacent electronic devices. A wideband noise-free signal is formed using a number of known modulated sequences - m-, Kasam-, Gold sequences, typically by direct spreading.Systems using known pseudo-random sequences cannot be considered protected from unauthorized access.An effective way to increase the confidentiality of signal transmission in a noise-free TSC is to use a chaotic signal-based PVP.Pseudorandom sequence generators are based on one-dimensional chaotic reflections such as logistics, quadratic, and cubic. Researches have shown the undeniable advantage of logistical reflection.
The construction of hidden communication systems using the deterministic chaos phenomenon is progressive issue nowadays. Several main stages should be carried out for achieving the goal. These are providing of the stability degree of synchronization between the drive and response generators of the transmitter and receiver respectively, investigation of chaotic oscillation to estimate the noise similarity and hardware design of communication system. It is known that the stable synchronization mode is needed for the quality level of data recovery. Therefore the basic conditions were computed for unidirectional coupled chaotic generators for the purpose of providing of generalized synchronization. To construct the communication system with high hiding degree first of all it is necessary to select the chaotic carrier signal the spectral and statistical characteristics of which were similar to noise. Using the obtained results the hardware prototype of hidden communication system was constructed
INFORMATION SECURITY OF THE CHAOTIC COMMUNICATION SYSTEM
Authors: Kushnir Nikolaj , Semenko Anatoly , Kosovan Georgij , Bokla Natalija , Shestopal Yevhen
Published: February 2020

In telecommunications, a particular place belongs to systems with a wideband noise-free signal, the undisputed advantage of which is increased by both narrowband and wideband interference, confidentiality of information transmission, as well as electromagnetic compatibility with adjacent electronic devices. A wideband noise-free signal is formed using a number of known modulated sequences - m-, Kasam-, Gold sequences, typically by direct spreading.Systems using known pseudo-random sequences cannot be considered protected from unauthorized access.An effective way to increase the confidentiality of signal transmission in a noise-free TSC is to use a chaotic signal-based PVP.Pseudorandom sequence generators are based on one-dimensional chaotic reflections such as logistics, quadratic, and cubic. Researches have shown the undeniable advantage of logistical reflection.
The construction of hidden communication systems using the deterministic chaos phenomenon is progressive issue nowadays. Several main stages should be carried out for achieving the goal. These are providing of the stability degree of synchronization between the drive and response generators of the transmitter and receiver respectively, investigation of chaotic oscillation to estimate the noise similarity and hardware design of communication system. It is known that the stable synchronization mode is needed for the quality level of data recovery. Therefore the basic conditions were computed for unidirectional coupled chaotic generators for the purpose of providing of generalized synchronization. To construct the communication system with high hiding degree first of all it is necessary to select the chaotic carrier signal the spectral and statistical characteristics of which were similar to noise. Using the obtained results the hardware prototype of hidden communication system was constructed
INNOVATIVE METHOD OF SATELLITE COMMUNICATION
Authors: Narytnik Teodor , Saiko Vladimir
Published: February 2020

The technical aspects of the main promising projects in the segments of medium and low-orbit satellite communication systems are considered, as well as the project of the domestic low-orbit information and telecommunications system using the terahertz range, which is based on the use of satellite platforms of the micro- and nanosatellite class and the distribution of functional blocks of complex satellite payloads more high-end on multiple functionally related satellites. The proposed system of low-orbit satellite communications represents the groupings of low-orbit spacecraft (LEO-system) with the architecture of a "distributed satellite", which include the groupings of the root (leading) satellites and satellite repeaters (slaves). Root satellites are interconnected in a ring network by high-speed links between the satellites. The geometric size of the “distributed satellite” is the area around the root satellite with a radius of about 1 km. The combination of beams, which are formed by the repeater satellites, make up the service area of the LEO system. The requirements for the integrated service area of the LEO system (geographical service area) determine the requirements for the number of distributed satellites in the system as a whole. In the proposed system to reduce mutual interference between the grouping of the root (leading) satellites and repeater satellites (slaves) and, accordingly, minimizing distortions of the information signal when implementing inter-satellite communication, this line (radio channel) was created in an unlicensed frequency (e.g., in the terahertz 140 GHz) range. In addition, it additionally allows you to minimize the size of the antennas of such a broadband channel and simplify the operation of these satellite systems.
ESTIMATION OF NON-STATIONARY PARAMETERS OF NONLINEAR EQUATIONS UNDER UNCERTAINTY
Authors: Nakonechnyi Oleksandr , Zinko Petro , Shevchuk Iulia
Published: February 2020

This paper presents research of system of nonlinear equations. The algorithms of building a priory estimations, optimal functional estimations and guaranteed estimations of non-stationary parameters of differential equations are offered. These results are spread for discrete-time models. The algorithms of building optimal estimations and guaranteed estimations of non-stationary parameters of difference non-linear equations are offered. The approaches to construct optimal estimations based on Bellman functions and Kalman-Bussi filter. For each algorithms of building optimal functional estimations and guaranteed estimations the error of estimation are offered. We have presented as an example the results of numerical experiments to build guaranteed and optimal estimates for mathematical model of spreading one type of information with external influence. The number of information is taken as key parameter promoting accomplishment of aim. Information is spread in the community along internal (interpersonal communication of the members of social community) and external threads (mass media). Also for simplicity models with a constant number of individuals who are intentionally able to perceive and further spread an informational massage are explored. The model takes the form of non-linear ordinary differential equation with stationary parameters. The peculiarity of such models is that they allow a reasonable level of precision to model the subject area and obtain he results that can be uses in practice. The numerical experiments demonstrated the practical meaning of offered results. The offered approaches except theoretical interest has an important practical meaning. The results can be useful for algorithm development for estimation of dynamic of process in the information-communicative space.
COMPRESSION RATIO IN FRACTAL ENCODING OF STILL IMAGES
Authors: Patlayenko Nikolay , Osharovska Helena
Published: February 2020

In this paper, the fractal methods of compressing still images are investigated for transmission in multimedia applications. A modified search algorithm for similar blocks in the image is proposed, which differs from the existing by parallel simultaneous comparison of rank blocks in all domain-based indicators. Domain and rank blocks are described by feature vector. The feature vector includes the mean deviation in the block, the asymmetry in the block, the difference in contrast between the pixels in the block, the average deviation of the pixel brightness within the domain (rank) block. The deviation error allows you to adjust the compression ratio. If the desired quality is not achieved, then continue to reduce the size of or rank, or domain blocks. The code sequence is formed from the brightness values and color difference signals of the rank block, its feature vector and block addresses that are similar to it. The dependences of the compression ratio and the signal-to-noise ratio on the standard deviation of the average brightness of the rank blocks of the descendants on the brightness of the original rank block are obtained.
DYNAMIC REST SERVICES ORCHESTRATION USING THE KNOWLEDGE BASE
Authors: Kharchenko Kostyantyn
Published: February 2020

The approach to organizing the automated calculations’ execution process using the web services (in particular, REST-services) is reviewed. The given solution will simplify the procedure of introduction of the new functionality in applied systems built according to the service-oriented architecture and microservice architecture principles. The main idea of the proposed solution is in maximum division of the server-side logic development and the client-side logic, when clients are used to set the abstract computation goals without any dependencies to existing applied services. It is proposed to rely on the centralized scheme to organize the computations (named as orchestration) and to put to the knowledge base the set of rules used to build (in multiple steps) the concrete computational scenario from the abstract goal. It is proposed to include the computing task’s execution subsystem to the software architecture of the applied system. This subsystem is composed of the service which is processing the incoming requests for execution, the service registry and the orchestration service. The clients send requests to the execution subsystem without any references to the real-world services to be called. The service registry searches the knowledge base for the corresponding input request template, then the abstract operation description search for the request template is performed. Each abstract operation may already have its implementation in the form of workflow composed of invocations of the real applied services’ operations. In case of absence of the corresponding workflow in the database, this workflow implementation could be synthesized dynamically according to the input and output data and the functionality description of the abstract operation and registered applied services. The workflows are executed by the orchestrator service. Thus, adding some new functions to the client side can be possible without any changes at the server side. And vice versa, adding new services can impact the execution of the calculations without updating the clients.
Computable metrics of personal performance in software development teams
Authors: Lishchytovych Andriy , Pavlenko Volodymyr
Published: February 2020

The present article describes setup, configuration and usage of the key performance indicators (KPIs) of members of project teams involved into the software development life cycle.
Key performance indicators are described for the full software development life cycle and imply the deep integration with both task tracking systems and project code management systems, as well as a software product quality testing system. To illustrate, we used the extremely popular products - Atlassian Jira (tracking development tasks and bugs tracking system) and git (code management system).
The calculation of key performance indicators is given for a team of three developers, two testing engineers responsible for product quality, one designer, one system administrator, one product manager (responsible for setting business requirements) and one project manager.
For the key members of the team, it is suggested to use one integral key performance indicator per the role / team member, which reflects the quality of the fulfillment of the corresponding role of the tasks.
The model of performance indicators is inverse positive - the initial value of each of the indicators is zero and increases in the case of certain deviations from the standard performance of official duties inherent in a particular role.
The calculation of the proposed key performance indicators can be fully automated (in particular, using Atlassian Jira and Atlassian Bitbucket (git) or any other systems, like Redmine, GitLab or TestLink), which eliminates the human factor and, after the automation, does not require any additional effort to calculate.
Using such a tool as the key performance indicators allows project managers to completely eliminate bias, reduce the emotional component and provide objective data for the project manager.
The described key performance indicators can be used to reduce the time required to resolve conflicts in the team, increase productivity and improve the quality of the software product.
Comparative analysis of Radon transform weighting functions for detecting acoustic signals
Authors: Bulakovska Anna
Published: February 2020

The problem of detection of acoustic emission signals by use computer tomographic methods of joint processing is considered with the system of remote sensors. Practical aspects of tomographic detection and coordinate measurement in presence of acoustic interference are developed. The enhanced weighting function for application of Radon transform on irregular coordinate grid is proposed and comparative analysis of expected enhancement is completed.
PROGRAM OF PREDICTION AND MANAGEMENT OF COINTEGED DYNAMIC ECONOMIC PROCESSES BASED ON THE CYBERNETIC APPROACH
Authors: Bundak Olena , Zubovetska Nataliia
Published: February 2020

A method and computer program ConRow, which prognostication of development of the dynamically CPLD economic transients is executed by, is described in the article. Such prognostication of economic processes is very important in the cases when their development can result in undesirable consequences, that to go out in the so-called critical area. Extrapolation in a critical area with the use of information about the conduct of the system at an area, near to it, allows to estimate to the lead through of experiment in the critical area of his consequence.
For the imitation of conduct of object the function of review is set on entrance influence. For a concrete object this function can express, for example, dependence of change of level sale from time-history of charges on advertising and set as a numeral row.
Statistics as a result of analysis of row are represented in a table, where the level of meaningfulness is set statistician, and also parameters of the handed over criteria.
The graphic reflection of information is intended for visualization of analysis. Here represented on the points of graphic arts, the crooked smoothing which are calculated as полиномиальные regressions is added. The best approaching is controlled by sight on the proper graph, and also by minimization of their rms errors.
Models of prognostication by sight and as formulas represented on graphic arts, the middle is here determined tailings and their chance is checked up on statistics of signs. After the got models determined also and prognosis values of influences and reviews.
Establishing an order models of Сr(p) of co integrate regression is carried out separate custom controls. The coefficient of clay correlation of ruФ shows by itself pair correlation between lines with a successive change in relation to each other on a size to лагу of l = 1, 2, 3 .
The program was tested on the example of ex-post prognosis at establishing an integration connection and possibility of prognostication of growth of nominal average monthly settlings on the basis of these statistical indexes of consumer inflation in Ukraine.
NEWEST TECHNOLOGIES OF MANAGEMENT AS A MAIN FORCE OF ENTERPRISE MANAGEMENT
Authors: Vasiuk Inna , Polika Victoria
Published: February 2020

One of the main areas of management restructuring and its improvement has been the widespread use of the latest computer and telecommunications equipment, the formation of high-performance information and management technologies based on it. New technologies based on computer technology require radical changes in the organizational structures of management, its regulations, human resources, documentation system, recording and transmission of information. Of particular importance is the introduction of information management, a greatly expanding opportunity for companies to use information resource.
With the development and strengthening of the impact of scientific and technological progress, the role of innovation, types and number of technologies contributing to the emergence of new products with new characteristics and criteria, which is highly valued in the market, increases. Therefore, there is now a process of restructuring the management system from a traditional manufacturing and market to a technological orientation that is capable of achieving this goal. An important factor in the success of each company is the strategic management of technological development of the enterprise - technological management.
The latest technologies in the management of enterprises are researched. Modern ERP-systems are justified.The main types of controlling are determined. The main points of grading are characterized. The main points of engineering are considered.
SIGNAL FADING IN LAND-SATELLITE COMMUNICATION LINKS
Authors: Blaunstein Nathan , Bar Elad
Published: February 2020

The work considers effects of fading phenomena on signal data transmitted through the land-satellite communication links, accounting mostly for LEO satellite, as most complicated configuration of the satellite links. Based on the selec­ted, among other statistical and physical, model of fading effects prediction the pro­bability of fading phenomena in land-satellite communication links is analyzed for three cities in Israel, small, medium and large, and is compared with the results obtained by other authors above the Copenhagen, Stockholm and in England.
CODE DIVISION MULTIPLEXING IN BROADBAND TELECOMMUNICATION SYSTEM WITH MIMO (2X2) IMPLEMENTING MODIFIED GOLD’S PSEUDO-RANDOM SEQUENCE
Authors: Semenko Anatoly , Bokla Natalia , Shestopal Yevhen
Published: February 2020

In modern telecommunication systems (TCS), multi-element MIMO antennas connected to different channels of information transmission are widely used.
The propagation of a radio signal in urban areas causes a rather complicated dependence of the transmission coefficients and significant signal changes, which leads to the creation of a multipath signal at the input of the receiver, including the signal fading.
Designing systems with MIMO 2x2, the signal polarization separation can be used when orthogonal signals with vertical and horizontal polarization are used. At the same time there are naturally cross — polarization obstacles. In systems with any number of antennas, spatial diversity may be used when the antennas are spaced over several wavelengths. In this case, the antennas should have as narrow a directional pattern as possible, which is increased by the size of the antennas, resulting in a very bulky system. In any case, the radiation patterns are overlapped and interfe­rence from adjacent channels gets into the channels.
Of all the signal processing methods, the main feature of which is the high implementation complexity, one of the most appropriate to use is the code division of the channels.
In this paper a telecommunication system with MIMO (2x2) is observed, which uses the code division multiplexing using spatial diverse antennas. For this purpose, a modified Gold’s pseudorandom sequence is used, which allows to form a QPSK signal and, accordingly, to provide 2 times reduced required bandwidth.
The authors propose a system design scheme for the forming and processing of broadband noise signal.
EVALUATION NOISE IMMUNITY OF THE BINARY DIGITAL MODEM WITH SIGNALS TYPE NOISE USING THE CHARACTERISTIC FUNCTION METHOD
Authors: Pervuninsky S. , Oleksjuk V.
Published: February 2020

The issue of improving modems with noise signals implies increasing the accuracy of theoretical estimation of noise immunity of the proposed methods of demodulation of information components of signals. Important is the task of assessing the immunity of digital modems, enabling engineers to ascertain the prospect of system development at the design stage. The article investigates the noise immunity of a binary digital modem with phase manipulation of the noise signal and the autocorrelation algorithm of its reception, which uses as noise carrier Gaussian signals.
The paper presents a technique for calculating the bit error rate (BER) in a demodulator, which is characterized by the fact that the functional for estimating the received information bit contains components with different laws of probability distribution. The presented methodology is based on a mathematical apparatus of characte­ristic functions, which allows determining the potential noise immunity of a digital modem, providing a reduction of the discrepancies between theoretical and experimental data for determining the BER.
Summing up the whole research it is worth noting the following research results: 1 noise immunity analysis of digital binary modem of noise signals was performed
using mathematical apparatus of characteristic functions at autocorrelation method of operation of Gaussian type noise signal demodulator in the presence of Gaussian additive interference; 2 an analytical expression was found to calculate the characteristic density function of the random variable distribution at the output of a binary digital correlator; 3 the ratio was obtained to determine the potential noise immunity of the demodulator. The results of the study showed that the application of this technique eli­minates significant differences between the results of the theoretical evaluation of the noise immunity of the demodulator and the results of its simulation.
COMPARATIVE CHARACTERISTICS OF WIRELESS SYSTEMS OF 802.11 STANDARDS FOR CAPACITY AND PERFORMANCE
Authors: Narytnik T.N. , Akopyan P. G. , Saiko V.G. , Korsun V.I. , Sarapulov S.V.
Published: February 2020

At present, there is an exponential increase in the total data traffic of mobile networks. Implementation of new technologies, implementation of innovative infrastructure solutions, as well as optimization and increase of efficiency of use of existing networks are necessary to prevent failures and congestion. The most promising way, from a mobile operator's perspective, is to develop a macro level and use Wi-Fi to offload LTE-A (Wi-Fi Offloading). However, the efficiency of the conflict resolution algorithms used in modern Wi-Fi systems is significantly reduced with increasing number of subscribers. Features of the family of the latest Wi-Fi standards (IEEE 802.11n, IEEE 802.11ac, IEEE 802.11ax), which are intended for unloading mobile networks and quality provision of Internet of Things, are considered in the article. A review and comparison of the protocols of the latest IEEE 802.11 standards showed that, technically, Wi-Fi 6 has a data rate that is 37% faster than 802.11ac, but more importantly, the updated specification offers 4 times more bandwidth per user in crowded places, as well as higher energy efficiency, which should increase the battery life of the devices. To achieve these improvements, 802.11ax has made many changes, including several multi-user technologies borrowed from the cellular industry, namely MU-MIMO and OFDMA technologies, which greatly increase bandwidth and productivity through more concurrent connections and more careful use of the spectrum.
The results of simulation modeling of the delay in packet transmission, average access point bandwidth and data loss values ​​using different modes of collective access to the IEEE 802.11n network channels: distributed (DCF) and centralized (PCF) access coordination functions. OPNET Modeler, which is radio-oriented and allows you to build models without programming, has been selected to develop the network simulation model.
DESIGN OF THE VIRTUAL DEVICE FOR THE SIGNAL SPECTRUM CALCULATION IN THE LABVIEW ENVIRONMENT
Authors: Tossenko O.M.
Published: February 2020

The development of measuring instruments requires a specialist to know the principles of operation of advanced measuring systems. This article describes guidelines for creating a virtual appliance in LabVIEW. LabVIEW (Laboratory Virtual Instrument Engineering Workbench) is a graphical application programming environment used as a standard tool for measuring, analyzing their data, further ma­ naging devices and objects under study. LabVIEW language is not like other programming languages. It does not create a program, but a virtual tool, designed not only for the simulation of certain processes, but also for the management of hardware and the study of real physical objects.
The article deals with the task of designing application software for a specific information-measuring device, analyzes the capabilities of the LabVIEW environment for spectral analysis of various signals, outlines the basic principles and techniques of programming within the framework of the LabVIEW graphical environment during the basic stages of development. The procedure for creating a virtual device is described, which allows to evaluate the spectral composition of the signals, presents a graphical code of execution (diagram) to the program and a graphical tool interface of the virtual device. A number of basic elements used to develop the program are described.
The simplicity of the graphic designs, the ease of installation on the field of the program, the clarity and readability of the program — all of which makes LabVIEW preferred over other languages of programming. In most cases, the experiment is the only source of reliable information. And the result is achieved much faster than the methods of "pure" theory.
The article substantiates the effectiveness of using a development tool that allows to obtain a software product and ensure the fulfillment of all the basic functions of an automated system.
Developing a software algorithm for calculating statistical parameters will help engineering students understand the order of determining spectral characteristics and their place in the structure of experimental research.
PARTICULARITIES OF USING THEE METHODS OF MATRIX PROGRAMMING
IN THE MATHEMATICAL MODELS OF HIGH VOLTAGE GLOW DISCHARGE ELECTRON SOURCES
Authors: Melnyk Igor
Published: February 2020

Possibilities and particularities of using of arithmetic-logic equations in complex models of high voltage glow discharge electron sources are considered in the article. Such electron sources are find wide application in electronic industry, device production and mechanic engineering for electron beam welding, brazing, annealing of produced items, for deposition of composed ceramics films and coatings, as well as for refining of refractory materials with using of electron-beam refusing in the soft vacuum. Main problem of designing of technological high voltage glow discharge electron sources is absence of complex physical-mathematic models. This fact is caused by complicity of physical processes, taking place in the discharge gap at conditions of low and middle vacuum, and it generally holding back the elaboration and providing in industry such advanced electron sources. Complex physic-mathematic model of high voltage glow discharge electron sources, based on apply­ ing of arithmetic-logic relations and methods of matrix programming, is proposed in the article. Main physical processes, taking place in the high voltage glow discharge, as well as mathematic means for describing these processes, and main items of elect­ ron gun, are considered. Mathematic relations for proposed model are written in the form of arithmetic-logic equations. The results of simulation of distribution of elect­ ric field in the discharge gap, distribution of power density of electron beam in the fo­ cus and guiding of electron beam in the equipotential channel, are presented. Its have been shown, that using of arithmetic-logic relations is significantly simplified realiza­ tion of proposed physic-mathematic model with using the means of matrix program­ ming. Possibilities of providing parallel calculations are also analyzed.
INTEGRATED MEDICAL DATA MANAGEMENT SYSTEMS REVIEW
Authors: Pysmennyi Ihor
Published: February 2020

In recent years we’ve seen breakthrough research success in medicine and computer science enabled by novel technology advancements, data analyses capabilities and learning techniques. Despite this, quality care doesn’t have full cove­ rage even in developed countries and access to care is recognised as one of the biggest challenges to the global healthcare system. Bound with population growth in remote areas in developing regions, which lack skilled professionals and medical resources, as well as aging in developed countries this caused a strong need for increasing healthcare effectiveness. Enabled by development of cloud technologies, quick expansion of mobile network coverage and internet access Clinical Information Management Systems integrated with decision support systems, Telemedicine (inclu­ ding distributed Virtual Healthcare Teams and medical imaging), Mobile Healthcare, medical Internet of Things (mIoT), Consumer Health Informatics with personal intelligent health assistants, Health Information Exchanges and deep learning techniques for diagnostics and knowledge extraction are among the state-of-the-art solutions which are more or less successfully used for coping with the problem mentioned above. This paper reviews current situation with implementing these novel informational systems, analyses their advantages, drawbacks, implementation impediments and outcome effectiveness suggesting platform for empowering their integration and maximizing output of each module. Such solution will have a synergy effect and result in a drastic increase of medical resource utilization effectiveness, service quality and providing bigger and fuller coverage with less spending at the same time empowering knowledge exchange process and laying foundation for future development and innovations in the whole healthcare domain.
ALGORITHMIC DECOMPOSITION AND REDUCTION OF LARGE MATHEMATICAL MODELS
Authors: Rogoza W.  , Ischenko A.
Published: February 2020

The problems associated with the processing of large amounts of data, initiated research in the field of creating special software that allows us to process this data online. A well-known example of such software is the MapReduce computational model developed and implemented by Google. The advantages of MapReduce are the high processing speed of large data arrays, achieved through data decomposition and reduction, as well as the ability to implement this model on standard hardware. Creating algorithms and programs that comply with the principles of the MapReduce model, depends on the specifics of the tasks that are solved, and relies on the software developers. Most of the algorithms known today are designed to process large arrays of data coming to a computer system online without changing data models (i.e. the data is processed as it enters the system in the data stream). At the same time, it is possible to distinguish classes of tasks for which the data on the objects under study are redundant, and their volume can be significantly reduced even before this data is available for their transformation. As is shown in the article, this class includes the tasks of mathematical simulation of complex engineering objects, the data models of which are represented in the form of mathematical equations that describe the physical states of the objects. The authors discuss the problems of decomposition and reduction of models at the level of transformations of the mentioned mathematical equations, which is why the authors call this approach algorithmic decomposition and reduction.