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International Journal of Research on Technology, Engineering, and Science (IJRTES)

International Journal of Research on Technology, Engineering, and Science (IJRTES), IRTES’in uluslararası konferanslarıyla ilişkili, tüm konularda araştırma makalelerinin hızlı şekilde yayınlanmasını sağlayan, uluslararası olarak, hakemli ve editoryal olarak bağımsız, disiplinlerarası bir dergidir. Tüm IJRTES yayınları gibi, çevrimiçi olarak okumak için de ücretsiz olarak erişilebilir. Publisher: SMART EVER KONFERANS ORGANİZASYON LİMİTED

Singular Perturbation Model Governing Potential Flow of a Real Fluid Over Thin Airfoils

Yazarlar: ,Omar El-Aajine,Nasser Eddegdag,Aze-Eddine Naamane,Mohammed Radouani,Benaissa El Fahime
Özet:

The potential-flow theory is a well-established theory. However, this theory fails to predict drag due to the assumption of inviscid flow known as the “D'Alembert's paradox”. Existing models treat special cases of inviscid or incompressible flows. Therefore, we propose an alternative potential-flow model derived from the conservation laws of fluid mechanics. We consider a high speed laminar, isentropic and irrotational steady flow of a real, Newtonian, and non-heating fluid over thin airfoils in a 2D curvilinear coordinate system. The developed model, using asymptotic & perturbation methods, is a singular perturbation equation that takes into consideration both compressibility and viscous effects.

Anahtar Kelime: Compressible viscous fluid,Potential-flow theory,Laminar boundary layer,High Reynolds number,Asymptotic & perturbation methods
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2021.1(1).ICOME
Volume 1, Issue 1, 2021
Bölüm: Mechanical Engineering
PDf Indir

A Novel Adaptive Entropy Approach for Blind Source Separation

Yazarlar: Salah Aldin Badran
Özet:

Due to its rapidly growing applications in different fields, such as telecommunication systems audio and biomedical engineering, Blind Signal Separation (BSS) has become an increasingly essential research field. A new adaptive entropy approach for separating signals. The method is compared with a few existing methods. Experimental simulation results demonstrate that the approach is effective at extracting original signals.

Anahtar Kelime: Entropy,Source,Approach,Separation,Blind
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2021.1(1).IJCIE
Volume 1, Issue 1, 2020
Bölüm: Computer and Information Engineering
PDf Indir

A Novel Adaptive Entropy Approach for Blind Source Separation

Yazarlar:
Özet:
Anahtar Kelime: Entropy,Source,Approach,Separation,Blind
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2021.1(1).IJCIE
Volume 1, Issue 1, 2020
Bölüm: Computer and Information Engineering
PDf Indir

Protecting the Interest of Profit-Sharing Investment Account Holders in Islamic Banks: The Nigerian Experience

Yazarlar: Ya’u ISAH,Romzie ROSMAN,Ashurov SHAROFIDDIN
Özet:

Islamic banks (IBs) have three major sources of funds namely: shareholders' funds, transaction deposits and Mudaraba deposits (by profit-sharing investment account holders-PSIAHs). Shareholders have their interest protected by the IBs’ directors, transactional accounts deposits are guaranteed by the banks. PSIAHs on the other hand have no representation on the banks’ board and their funds are not guaranteed. They rely on the goodwill of the banks’ board of directors and management to protect their interest and share profit (if any) from the investment of their funds and could lose some or all their capital if the banks incur losses. This could give rise to moral hazard and agency problem which put the PSIAHs at a disadvantage that calls for the establishment of corporate governance policies to protect their interest. The objective of this paper is to review corporate governance issues in the management of PSIAHs by IBs and to share Nigeria’s experience in the protection of the interest of PSIAHs. It is expected that the Nigerian experience could be a learning point for regulatory and supervisory authorities in other jurisdictions to replicate. The paper contributes to literature on the deposit practices by IBs which has been reported to be scarce.

Anahtar Kelime: profit-sharing investment account holders,PSIAHs,Corporate Governance,Nigeria
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2020.1(1).ICOCE2
Volume 1, Issue 1, 2020
Bölüm: Economics
PDf Indir

Conceptual Framework on Risk-Based Supervision of Islamic Banks: A Proposed Risk-Based Supervisory Framework

Yazarlar: Suleiman Sani Dalhatu,Ashurov Sharofiddin
Özet:

The main objective of this conceptual study is to propose an ideal risk-based supervisory framework for Islamic banks that recognises the specificities of Islamic banks. Thus, it gives a more accurate assessment of their financial health (risk profile) as opposed to using current conventional banking based frameworks to assess Islamic banks. The methodology adopted has been a qualitative approach through a critical in-depth review of literature related to the area of study based on available secondary data to generate valuable insights. The expected implication and contribution of the framework is that Islamic banks will be better supervised by regulators which will lead to safer Islamic banks and in turn promote the safety and soundness of the financial system at large. The study will also aid Islamic banks to better understand and manage the unique risks inherent in their line of business (Islamic banking). This paper also contributes to alleviating the current dearth of academic literature on the crucial regulatory subject of risk-based supervision in the Islamic finance industry.

Anahtar Kelime: risk based supervision,Islamic bank,risk,regulation
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2020.1(1).ICOCE2
Volume 1, Issue 1, 2020
Bölüm: Economics
PDf Indir

Enhancing Financial Inclusion in Nigeria: The Role of Islamic Finance

Yazarlar: Abdurrahman Abdullahi,Anwar Hasan Abdullah Othman,Salina Hj Kassim
Özet:

Financial inclusion helps in reducing extreme poverty, supporting inclusive development, and enhancing the well-being of the people. As a result, policy makers, regulators and development institutions have made financial inclusion a priority in promoting economic growth and reducing poverty and inequality. One important channel used in promoting access to finance among the poor is Islamic finance. This paper, therefore, reviewed theory and literature in order to synthesize the role of Islamic finance in enhancing financial inclusion. The review revealed that Islamic finance helps in ensuring financial inclusion through the provision of Shariah-compliant, risk-sharing financial products and services. In addition, the Islamic social finance products such as Zakah, Sadaqah and Waqaf compliments the commercial aspects. Consequently, Islamic finance helps in reducing voluntary financial exclusion and extreme poverty. The paper also highlighted the role of government in promoting financial inclusion through the development of appropriate regulatory and supervisory frameworks, financial inclusion strategies, protecting consumers and advancing financial literacy. The paper recommends the sustained application of risk-sharing financial products by Islamic financial institutions in Nigeria. In addition, Islamic banks should complement their financing products with Zakah, Sadaqah and Waqaf. Furthermore, government should sustain its efforts towards consumer education and financial literacy.

Anahtar Kelime: financial inclusion,Islamic finance,Islamic financial institutions,Islamic social finance
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2020.1(1).ICOCE1
Volume 1, Issue 1, 2020
Bölüm: Economics
PDf Indir

Mathematical Model on Internal Overvoltages HV Windings

Yazarlar: ,Salah Al-Din Badran
Özet:

The issue of insulation damage to unit transformer windings coming about because of inner overvoltages is presented. The paper presents the simulations results in the field of analyzes of voltage dissemination along transformer windings at various switching operations and turbulences in the power line. For the computations, a numerical model of windings of a typical unit transformer was utilized, taking into account its actual parameters. The results of computations and summary are given.

Anahtar Kelime: HV windings,voltage distribution,protection level,simulation,switching
Dijital TanımlayıcıDijital Tanımlayıcı: doi: soon.
Volume 1, Issue 1, 2020
Bölüm: Energy and Power Engineering
PDf Indir

Yazarlar:
Özet:
Anahtar Kelime:
Dijital TanımlayıcıDijital Tanımlayıcı:
Volume 0, Issue 0,
Bölüm:
PDf Indir

Enhancement of Energy Efficiency of the System of Electric Driver of Safe Literal Apparatus

Yazarlar: Gala Parshikov
Özet:

According to the results of the analysis of the state of the level of development of unmanned aerial vehicles with an electric traction unit, the concept of increasing energy efficiency of the electric drive of the traction unit is proposed. It is proposed to use pulsed quasi-resonance transducers with the minimum dynamic switching power loss as the main voltage converter of unmanned aerial vehicles.

Anahtar Kelime: Electric drive,aerial vehicle,quasi-resonant converter,efficiency
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2009.1(1).h8
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

A New Design and Optimization of Mysql Data Bases

Yazarlar: Veronika Stromenko,Ebgeniya Korolio,Natalia Kristof
Özet:

The article was designed database (DB) for the existing project "Green School". The task was to collect, store and process information from SWEGON GOLD using web-technologies. The collection of information was performed using the PHP library c URL. To store information, the MYSQL database was used. To reduce the query time, caching and optimization of database queries were performed. On the basis of the obtained data, a conclusion was made on the possibility of optimizing and accelerating work with the database of the web-application.

Anahtar Kelime: Data base,mysql,cosh,optimization,SWEGON GOLD
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).h7
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

Solution of the Problem of Factorization of the Correlation Matrix of the Multiplayer Dynamic System with Advanced Information Technologies

Yazarlar: Olenka Mishtik,Anastaciya Onishik
Özet:

The factorization of a covariance function or its analog in the frequency domain - spectral factorization - is a much more difficult task than the synthesis of a covariance function or spectrum. When considering the factorization problem, two questions arise. The first is connected with the motivation of why it is necessary to study this task in general, and the second one - with the choice of the most effective procedure for factorization. The necessity of studying factorization algorithms follows from the fact that in many tasks there is no information on the process generation, and the known measured characteristics of the output process: covariance function or spectrum. Regardless of any consideration of the discovery or evaluation, it is desirable to find a model for describing the dynamics of process generation, since it can give a deeper understanding of the physics underlying the task. In the context of detection and evaluation, many of the synthesized receivers contain devices for evaluating process parameters. In many tasks, the implementation of the relevant evaluation algorithms requires knowledge of the generation model. This article is devoted to the development of the software application Trinity-factor for determining the noise signals by the factorization method of the correlation matrix of the multidimensional dynamic system.

Anahtar Kelime: Factorization,covariation function,white noise,matrix of modulation,python
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).h6
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

Analysis of Protection Methods from DDoS Attack

Yazarlar: Kate Gross,Angelina Lazdina
Özet:

The paper considers the main types of DDoS attacks on computer networks, provides recommendations for protection against these types of attacks.

Anahtar Kelime: Host,server,attack,protection,networking equipment
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).h5
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

Design of Information System for Enterprises, Localized Library Activities

Yazarlar: Hatalia Kordas,Alina Vasechkina
Özet:

The article describes the necessity of automation of work of the enterprises of the library sphere. An information system was designed and developed that allows automating general operations to optimize the work of library institutions. To do this, an object-oriented development environment was used in a high-level language with the connection of the database from MS Access as a data warehouse. The created software supports user accounts.

Anahtar Kelime: Library,high-level language,Delphi,database,oop
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).h4
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

Size of the Adjustment System for Decision Making Business in Retail Trade

Yazarlar: Jessy Bondarenko,Lana Chen
Özet:

In this paper, the relevance of decision support decision systems is considered, and the requirements for the DSS, which will be used by the enterprise engaged in retail trade, are described. The goal was to develop a system that would perform the following functions: calculation of the balance of the goods at the end of the working day; sorting; calculation of total sales for every 2 weeks; allocation of sales, which sales exceeds the average, or is less than average; processing sales information; processing information on the purchase of goods; processing of information about the remnants; forecast sales for future periods. To implement the SPPR, the Microsoft Office Excel 2010 and Visual Basic 2010 environments were used.

Anahtar Kelime: DSS,decision-making,intelligent system,retail trade,Visual Basic
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).h3
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

Improved Methods and Means of Technical Diagnostics of Systems of Management

Yazarlar: Marija Kriva,Anastasia Monberga
Özet:

At today's level of complexity of electronic and computer technology knowledge of the basics of technical diagnostics becomes mandatory for specialists in the field of development and operation of such technology. The application of methods and means of technical diagnostics is an effective way to ensure high reliability of products, reduces the time for their manufacture and repair. The number and complexity of electronic products manufactured by the industry is growing so rapidly that it is difficult to imagine a clever decision to train specialists for debugging and technical diagnostics that would cope with their tasks, with only manual and intuitive methods for detecting and troubleshooting. The object of the control system may consist of other objects that may have a permanent structure of interconnections. The article is devoted to the analysis of methods and means of technical diagnostics of technical objects. The approaches to the construction of mathematical models of test diagnostics of control systems are determined.

Anahtar Kelime: Complexity,technical diagnostics,efficiency,mathematical model,failure
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).h2
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

Features of the New Program Paradigm - Matrix Programming

Yazarlar: Alisa Samoylova,Ekaterina Doluda
Özet:

The article presents the latest software paradigm - probabilistic programming. This paradigm allows us to use all the more sophisticated probabilistic models to provide ever more advanced tools for the development and creation of artificial intelligence. Since probabilistic programming should take its place among other software paradigms and have its own specific features, it was the task of identifying them, as described in this article.

Anahtar Kelime: Material programming,paradigm of programming,matrix modeling,Probability,efficiency
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).h1
Volume 1, Issue 1, 2018
Bölüm: Computer and Information Engineering
PDf Indir

Improvement of the Troubleshooting in a Computer Network Based on Matrix of Accuracy

Yazarlar: Krista Huang,Jessica Berzina
Özet:

Nowadays, local area networks (LANs) are widely used and probably will be used later. But the larger and more complex the network, the more problems and malfunctions in it can arise. Therefore, it is necessary to increase the fault tolerance and reliability of local computer networks, especially in the structures of enterprises, where LAN is a key tool in the work. Network performance is provided by eliminating bottlenecks in the network nodes and collision domains, which reduce the speed of operation and can lead to the interruption of the signal from the network node. In these cases, it may take a long time to restore the LAN operation, which can lead to idle time and financial losses. Also important is the security of the network, which can be improved by installing network filters, and setting the appropriate security policy for each network node. This article deals with the method of correction of a single failure in a local computing network. The matrix of reach is constructed through the adjacency matrix.

Anahtar Kelime: Network failures,diagnostic model,efficiency matrix,matrix of discrepancy,LAN
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).g2
Volume 1, Issue 1, 2018
Bölüm: Networking
PDf Indir

Analysis of Types of Language Signaling Systems

Yazarlar: Baiba Gapda,Anastasiai Bogdanova
Özet:

Communication security in the transmission of speech messages is ensured by changes in the characteristics of the language in such a way that it becomes indiscriminately and unrecognizable for the intruders who eavesdrop or intercept a closed speech message. The choice of methods for closing speech signals depends on the type of specific use and technical characteristics of the transmission channel. This article analyzes the methods of closing speech messages and examines the types of language closure systems, and their differences. The quality and degrees of secrecy of language closure schemes are considered. Selected type of closing speech signals for further development of the device.

Anahtar Kelime: Closing systems,secretion,security of communication,speech signals,transmission channel
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).g2
Volume 1, Issue 1, 2018
Bölüm: Networking
PDf Indir

Use of Modern Network Technologies in Sportly Tactical Games

Yazarlar: Olia Boichenko,Olga Petrova
Özet:

Cellular sensor networks are one of the most promising areas for the development of modern wireless telecommunication technologies. The prospects of using sensor networks can not only replace the cable infrastructure with wireless but also get new functionality due to the miniature nodes, low power consumption, built-in radio interface, sufficient computing power, and relatively low cost. They have already found widespread use in automation systems of information gathering, monitoring and control of the characteristics of various technical and natural objects. The main feature of the use of porous structure is the creation of data transfer systems with a dynamically changing structure, to the basic access points is the ability to connect client devices with built-in logic (Smart Sensors), which can be personal computers, PDAs, mobile phones, etc. ., which become nodes of the network. Devices connected to the network can participate in data transfer, increasing the reliability and performance of the system. The emergence of new standards for wireless telecommunications and the emergence of porous data structure have greatly expanded the scope of their use. This work proposes the use of sensor networks in sports tactical games such as lasterag, paintball, strikeball, hardball and other similar type.

Anahtar Kelime: Sensor network,IEEE 802.11 standard,router,strikeball,paintball
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).g1
Volume 1, Issue 1, 2018
Bölüm: Networking
PDf Indir

Automatic Selection of Text Corpus for Speech Synthesis Systems

Yazarlar: Schati Davidov,Oksapa Baishurina
Özet:

This paper presents a new developed method that selects a corpus of a concatenated synthesis of a recorded speech. The purpose of such selection is to attribute greater phonetic and prosodic variability to synthetic speech. In this procedure, four steps are measured: prosodic annotation, grapheme-phoneme conversion, representation in characteristic vectors and selection itself.

Anahtar Kelime: Recording script,prosodic variability,genetic algorithms,conversion,testings
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).f6
Volume 1, Issue 1, 2018
Bölüm: Signal Processing
PDf Indir

A New Non-Maximally Decimated UEPS for Blind Source Separation

Yazarlar: Salah Al-Din Badran,Abdel-Hamid Soliman,Ismail Shahi,Alistair Duffy
Özet:

The problem of blind source separation (BSS) refers to recovering original audio signals, called source signals, from the mixed signals, called convolutive mixtures or observation signals, in a reverberant environment. The mixture is a function of a sequence of original speech signals mixed in a reverberant room or ambient. The objective is to separate mixed signals to obtain the original signals without degradation and without prior information of the features of the sources, such as the locations, the spectral nature or the mixing method. The strategy used to achieve this objective is to use multiband schemes. Multiband schemes work at a lower sampling rate, have less computational cost and a quicker convergence than the full-band approach. For more challenging scenarios, an unequal-passbands scheme with oversampled decimation is proposed for blind source separation application; the greater number of bands, the more efficient the separation. The results are compared to the currently best performing method and three standard methods and show a significant improvement in the computational saving and convergence speed.

Anahtar Kelime: Convolutive,mixture,speakers,separation,NMD_UEPS
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).f5
Volume 1, Issue 1, 2018
Bölüm: Signal Processing
PDf Indir

Refinement of Phonetic Segmentation in Applications of Speech Synthesis

Yazarlar: Olesa Yacenkova,Valekema Lapina
Özet:

Speech is generated from the juxtaposition of automatically selected segments of parts restricted in a earlier recorded and partitioned bank in concatenated synthesis. The synthetic speech obtained through this technique presents naturalness influenced by the effectiveness of the segmentation tools. The act of such tools is regularly favored by a mixed method causing from an HMM model through a refinement method of segmentation. This refinement has been successfully accomplished through the use of techniques based on neural networks. In this work, it is proposed a set of networks whose performance is superior to the other topologies of neural networks presented in the literature. In this case, the training of the networks is done by a distribution of the training set based on the borders of phonemes with similarities between them.

Anahtar Kelime: Segmentation refinement,Concatenative synthesis,Artificial neural networks,HMM,training set
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).f4
Volume 1, Issue 1, 2018
Bölüm: Signal Processing
PDf Indir

Syntagmatic Classification Focusing the Synthesis of Speech

Yazarlar: Aghastasia Baklanova,Tatiana Ket
Özet:

The prosody target of concatenated speech synthesis systems is obtained by using modeling algorithms trained in an offline procedure. These algorithms are developed with reference to linguistic characteristics (for example, syllabic separation, tonicity and division into phonological and classification of phrases) of the sentences contained in a recorded speech bank. In this work, a procedure is presented for automatic classification and division of sentences into phonological phrases. The classification is based on rules that result in a hit percentage of 92.86%. Moreover, it can help in the process of predicting pauses, leading to an adequate establishment of concatenated speech synthesis and, consequently, to a better naturalness of synthetic speech.

Anahtar Kelime: Phonological phrases,aconcatenated speech synthesis,modeling,synthetic speech,syllabic separation
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).f3
Volume 1, Issue 1, 2018
Bölüm: Signal Processing
PDf Indir

Greedy Genetic Algorithm for Selection of Text Corpora Used in Speech Processing Applications

Yazarlar: Horvath Novikov,Elizabeta Radizinskaia
Özet:

In recognition, synthesis and speech conversion systems, a text corpus is required to obtain the speech bank taken as a reference in the development of such systems. The selection of this corpus is often performed automatically through the solution of an optimization problem to maximize a function that represents phonetic / prosodic coverage. The state-of-the-art technique for solving such a problem is called additional greedy. When compared to other approaches presented in the literature, additional greedy exhibits low computational complexity; however, it performs poorer results in the optimization process. In order to improve this performance, this paper proposes a procedure for selecting the corpus based on two steps. First, additional greedy algorithms are applied in the selection of a smaller corpus from a larger initial corpus. In the second step, a greedy genetic technique selects a new set of sentences using the resulting corpus of the first step. In this way, a better compromise relationship between complexity and performance is established in the optimization process. To our knowledge, the greedy genetic selection technique has not been used before for this purpose.

Anahtar Kelime: Selection of corpus,greedy algorithms,greedy genetic,phonetic coverage,compression
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).f2
Volume 1, Issue 1, 2018
Bölüm: Signal Processing
PDf Indir

Evaluation and Comparison of Full Reference Metrics in the Characterization of Image Detection Thresholds

Yazarlar: Svetlana Petrovna,Ekaterina Mazloeva
Özet:

This paper proposes a performance evaluation methodology as well as compares some visual quality metrics for perception threshold characterization in images degraded by Gaussian additive noise. Both non-perceptual (SNR and PSNR) and perceptual metrics (MSSIM, IFC, FV and C4) are evaluated. The subjective evaluation experiment that serves as a basis for the presented results is performed with approximately 120 observers, considering a test set with 60 images, divided into five groups. The data analysis seeks to estimate a detection threshold value for each of the metrics evaluated as well as the quality obtained from the corresponding estimate.

Anahtar Kelime: Evaluation of image quality,metrics,image detection,perception thresholds,perceptual metrics
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).f1
Volume 1, Issue 1, 2018
Bölüm: Signal Processing
PDf Indir

Artificial Bandwidth Extension for Speech Signals Using Phonetic Classification

Yazarlar: Max Richter,Oska Klein
Özet:

This article presents a new strategy for implementing artificial bandwidth extension (ABWE) systems for speech signals applied to telephony in packet networks. In the literature, several approaches are proposed; however, there is not yet an adequate procedure that can satisfactorily represent speech segments with concentrated energy at high frequencies. In order to improve the performance of these systems, a new strategy based on classification is discussed here. The results obtained are evaluated and the quality enhancement of the reconstructed speech signals confirms the effectiveness of the proposed strategy.

Anahtar Kelime: Phonetic classification,speech coding,artificial bandwidth extension,voice enhancement,efficiency
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2017.1(1).e3
Volume 1, Issue 1, 2018
Bölüm: Telecommunications Engineering
PDf Indir

CELP-Coding Technology in Information Voice Information Systems

Yazarlar: Daniela Pamilevna,Lilia Pomanikhina
Özet:

The article deals with the transmission of information in the form of a voice. The relevance and perspective of the topic in modern network needs is indicated. The methods and their language coding parameters are considered. The principles of the creation of the method of encoding СЕLP are resulted. The linear auto regression model of the process of formation of speech signals is presented and it is indicated that the autoregressive model of the speech signal describes it with a rather high degree of accuracy and allows the use of advanced mathematical apparatus of linear prediction. The advantages of the CELP encoding method are announced.

Anahtar Kelime: Technology, Network,Digital Information,Coder,Authorization Model,Quality,CELP,Code Book,Linear Filter
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).e2
Volume 1, Issue 1, 2018
Bölüm: Telecommunications Engineering
PDf Indir

Application of Neural Networks for Diagnostics Telecommunication Systems

Yazarlar: Adiana Taran,Liobov Samuel
Özet:

Telecommunication systems are widely used in almost all branches of human activity. With long-term operations, telecommunications equipment can be damaged, which leads to undesirable information loss. The process of diagnosing the critical states of a telecommunication system is quite laborious and requires an analysis of many factors and parameters in order to accurately identify and eliminate the problem. To speed up this process, neural network technologies can be used. In this article, the main components of the neural network and its applications for the diagnosis of critical states of telecommunication systems are considered.

Anahtar Kelime: Neural networks,neuron activation function,data transmission,telecommunication system,diagnosis
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).e1
Volume 1, Issue 1, 2018
Bölüm: Telecommunications Engineering
PDf Indir

Evaluation of the Possibility of Restoration of the Heat Field Configuration by its Discrete Values

Yazarlar: Mari Mello,Laura Matrokhiva
Özet:

In the paper, the analysis of the restoration of the thermal field configuration by discrete values ​​is carried out using methods of bilinear interpolation and rescaling of Lanczos. An analysis of the mean square deviation and spectral characteristics shows that the minimum hardware does not allow the field to be adequately restored due to the impossibility of registering the high-frequency component. The advantages and disadvantages of alternative methods of representation of a thermal field on the basis of pyrometric sensors are considered.

Anahtar Kelime: ,thermal images processing methods,interpolation,spectral characteristics,Thermal field restoration,high-frequency component
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).d17
Volume 1, Issue 1, 2018
Bölüm: Mechatronics and Automation Engineering
PDf Indir

Problems of Measurement of Green Humidity in Flow

Yazarlar: Endija Beet,Iolia Vinikova
Özet:

The moisture content of grain and other agricultural products is taken into account during delivery and admission to grain processing enterprises and grain storages, since the net weight of the product and, consequently, the actual cost depend on it. Increasing the moisture content of the products also leads to non-production costs during transportation. One of the most important characteristics of grain is moisture. Conditionally, the results of moisture measurement can be divided into two components: commercial and technological. This article reveals the main problems of measuring the moisture content of the grain in the stream. Description of the main methods for measuring the moisture content of bulk materials is presented. The analysis of the methods of measuring the humidity and found optimal. The existing tools for grain analysis in the flow are presented.

Anahtar Kelime: Ghnologology,sensor,measurement,high-frequency (HF),Ultra-high-frequency (UHF)
Dijital TanımlayıcıDijital Tanımlayıcı: 10.2001/ijrtes.2018.1(1).d16
Volume 1, Issue 1, 2018
Bölüm: Mechatronics and Automation Engineering
PDf Indir
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