Effects of a particle placed on the ossicles for microphoneless cochlear implant design

2020 ◽  
pp. 095441192097943
Author(s):  
Serkan Kurt ◽  
Ahmet G Ozsonmez
Keyword(s):  
Cochlear Implant ◽  
System Analysis ◽  
Micro Electro Mechanical System ◽  
Point Of View ◽  
Phase Response ◽  
Implant Design ◽  
Ambient Sound ◽  
Biomedical Systems ◽  
Loading Effects ◽  
Human Ear

In a typical cochlear implant design, the ambient sound is detected via a microphone and the transmission unit of the implant is placed at the back of the auricle. However, this design has several drawbacks. Firstly, the subject cannot bath or swim comfortably with the microphone unit on, and secondly having an external attached unit which may be visible is cosmetically disturbing. Herein, the idea is to explore obtaining the acoustic signals that would directly drive the cochlear nerves, without using a microphone, in which only the vibrations of the ossicles are employed. Thus, the natural filter caused by the anatomy of the ear may be maintained. The proposed method is to place or attach a micro-electro-mechanical-system (MEMS) type of tiny and lightweight accelerometer to sense or detect the vibrations of ossicles, namely malleus, incus and stapes. A quick analysis or first-thought revealed that physically longer extension of the incus is the most suitable and/or convenient place to attach such a sensor. The model adopted has been optimized to match the amplitude and phase response of the human ear from a system analysis point of view. Some simulation experiments had been done to study and understand the possible loading effects of placing a sensor on the incus. Purpose of the simulations is testing the feasibility before the very difficult surgical procedures. Preliminary results indicate that placing a sensor of weight up to 36 mg does not seriously affect the amplitude and the phase response of the ear. This study is yet another example of how simulations of physiological systems can be advantageous and facilitating in the design of biomedical systems.

scholarly journals USE OF ORGANIZATION AND ENGINEERING IN EVENT TOURISM

2020 ◽  
pp. 22-28
Author(s):  
Svitlana Tyshchenko ◽  
Taisiіa Chernyshova ◽  
Snizhana Mutasova
Keyword(s):  
System Analysis ◽  
Technical Support ◽  
Point Of View ◽  
Practical Significance ◽  
Wide Audience ◽  
Main Research ◽  
Goal Development ◽  
Effective System ◽  
Event Tourism ◽  
First Time

The article discusses the main problems of the implementation of event tourism in certain territories, which primarily include: short-term event; the scale of the event; placement in a natural area; lack of sufficient means of accommodation and services for tourists; style of events and the like. Goal. Development of an effective system of organizational and technical support for event tourism events. Methodology. The main research methods, in order to achieve the goal, are the analysis of engineering support, the classification of mobile homes for event tourism and the modeling of requirements for them based on the system analysis of event tourism technologies. Results. The organizational and technical support of event tourism activities proposed in the article will reduce the technogenic load on the local natural landscapes of natural areas in the places where event events are held. This will contribute to the formation of a higher culture, the style of their conduct, which will make it possible to undertake events of event tourism in regions that are even more attractive to a wide audience of tourists not only in our country, but also abroad. This method of organizational and technical support can also be used for holding rallies, forums, conferences and other events. Important for the success of the development of event tourism and the correct organization of organizational and engineering support is the formation of a calendar of events, which makes it possible to approach all future events in a planned manner, from the point of view of engineering and technical support, later will give its positive results. Scientific novelty. The current state of the use of mobile houses in event tourism on the territory of Ukraine is analyzed for the first time. For the first time, the calendar of the territory of the Stanishovskaya OTG of the Zhytomyr region was compiled for 2020-2021. Practical significance of the study lies in the fact that the compiled calendar of event tourism will be used by OTG "Stanishovskaya" in full and taking into account our recommendations regarding the holding of mass events.

scholarly journals EFFICIENT ENGINEERING IN DEVELOPMENT OF CONSTRUCTION SECTOR COMPETITIVENESS

2021 ◽  
Vol 21 (3) ◽  
pp. 90-99
Author(s):  
O.N. Bekirova ◽  
◽  
S.A. Barkalov ◽  
M.S. Trifonova
Keyword(s):  
System Analysis ◽  
Consumer Preferences ◽  
Optimal Solution ◽  
Real Estate Market ◽  
Point Of View ◽  
Economic Conditions ◽  
Construction Sector ◽  
Construction Enterprise ◽  
Modern Economic ◽  
Optimal Construction

The COVID-19 pandemic has really become a real shock for the whole world. The way of life has changed not only for people, but also for companies in various industries. Today, the real estate market, like many other industries, is in conditions of economic instability. The study highlights the problems faced by the construction sector in the current conditions of the coronavirus pandem-ic. One of these problems is the sustainable competitiveness of construction and its compliance with new consumer preferences. Aim. The study of the influence of engineering solutions and other fac-tors on the competitiveness of construction in modern economic conditions, the definition of key criteria. Development and description of the decision-making methodology for choosing the optimal construction enterprise from the point of view of competitiveness. Materials and methods. The methods of system analysis, optimization methods, hierarchy analysis and decision theory are ap-plied in the work. Within the framework of the proposed methodology, the author's method of identifying key competitiveness criteria has been developed. Since the problem of choosing the optimal solution from among the alternatives is based on a multi-criteria approach, the use of this method is quite appropriate. The template for the formation of the methodology was identified based on the analy-sis of existing research in this area. Results. The author summarizes and supplements the criteria and factors affecting the competitiveness of construction organizations in the study. The author's method of making a decision on determining the optimal construction enterprise from the point of view of competitiveness based on the criteria considered by the author is presented. This technique includes several stages: 1) forming a goal; 2) formation of criteria by which organizations will be evaluated; 3) calculation of criteria for each organization and bringing them to a homogeneous type of data; 4) building a tree of goals and a matrix of priorities; 5) Determining the values of priority vectors for each organization under study. Conclusion. The total influence of criteria and engineering solutions on the competitiveness of construction is determined. In this regard, the implementation of the con-struction project should be carried out taking into account the strategic goals of the organization and binding to the identified criteria. The proposed methodology is developed for Russian construc-tion companies operating in modern economic conditions.

scholarly journals MODELING THE DEVELOPMENT OF THE GAS INDUSTRY IN UKRAINE

2021 ◽  
Author(s):  
Vitaliy Makarov ◽  
◽  
Mykola Kaplin ◽  
Keyword(s):  
Linear Programming ◽  
Natural Gas ◽  
System Analysis ◽  
Statistical Information ◽  
Point Of View ◽  
Annual Production ◽  
Production Volume ◽  
Gas Industry ◽  
Unit Costs ◽  
Gas Fields

The subject of the research is the directions of development of the gas industry of Ukraine. The purpose of the study is to develop a mathematical model for calculating the program of development of the country's gas industry to solve the problem of choosing options for commissioning of new natural gas fields and intensification of existing fields. The methods of system analysis, linear programming, comparative analysis and expert evaluations are used in the work. A model for calculating a program for the development of the gas industry is proposed to solve the problem of choosing options for commissioning new natural gas fields and intensifying existing fields. The model is based on representing development options with achievable volumes of annual production increase in integer linear programming problems. New and operating natural gas fields can be presented in the model with statistical information on their distribution by reserves and depths with the corresponding development costs, as well as the dependences of the predicted annual production volume on the measures taken and technologies to improve the efficiency of gas extraction. Model calculations provide a two-stage method for determining the options for the development of the industry. At the first stage, a variety of options are optimized according to the criterion of unit costs per 1,000 m3 of gas produced during the entire program period. The second stage ensures the optimal distribution of the selected options between the periods of the program using the criterion of the production volume and with the limited costs of the previous period for the preparation, prospecting and exploration of deposits. The results of calculating feasible options for the development of the gas production industry based on statistical information on volume, mining and geological and cost indicators of the development of resources and natural gas reserves are presented. The calculations investigated the options for the uniform distribution of investment, as well as their growth from the first stage to the next. For both cases, the priority is set for the selection of fields with large reserves at the same depths. Such a procedure for putting fields into operation is expedient, both from the point of view of the criterion for the optimal functioning of the industry over a long period of time – the unit costs of production, and on the basis of considerations of achieving the highest volumes of extraction in the shortest possible time. In the case of small capital investments in the development of the industry, the model selects small-volume reserves of deposits according to the structure of Ukrainian reserves.

Educational work at the university as an element of the quality management system

2021 ◽  
pp. 3-12
Author(s):  
Ya.A. Vavilin ◽  
◽  
V.A. Soldatov ◽  
I.G. Mankevich ◽  
N.YU. Chistokletov ◽  
...  
Keyword(s):  
System Analysis ◽  
Quality Management System ◽  
Educational Process ◽  
Point Of View ◽  
Educational Work ◽  
Intercultural Interaction ◽  
The Russian Federation ◽  
The University ◽  
Formation Of Groups

The article deals with an important component of the learning process - educational work, in terms of the formation of a moral and patriotic portrait of a graduate, as well as the formation of groups of universal competencies related to intercultural interaction and civic position. The task of improving upbringing work at the university received particular urgency in connection with the implementation of the strategy for the development of education in the Russian Federation. The authors attempt to evaluate and analyze educational work from the point of view of the process approach and system analysis. A hierarchical model of educational work is proposed and the components of the process are highlighted, and a system of indicators for assessing the quality of educational work is developed. The proposed approach can be applied in the formation and evaluation of the strategy for the development of the educational process in higher education and the development of work programs for educational work, as an obligatory element of the main professional educational program.

THE IMPACT OF AUDITORY NERVE EXPERIMENTS ON COCHLEAR IMPLANT DESIGN

1983 ◽  
Vol 405 (1 Cochlear Pros) ◽  
pp. 114-121 ◽  
Author(s):  
N. Y. S. Kiang ◽  
E. M. Keithley ◽  
M. C. Liberman
Keyword(s):  
Cochlear Implant ◽  
Auditory Nerve ◽  
Implant Design ◽  
The Impact

Cochlear implant design

2018 ◽  
Author(s):  
Vedat Topsakal
Keyword(s):  
Cochlear Implant ◽  
Outcome Measures ◽  
Implant Design

This chapter discusses papers on cochlear implant design including the design of the studies (outcome measures, results, conclusions, and a critique).

scholarly journals Sonic Watermarking Method for Ensuring the Integrity of Audio Recordings

2020 ◽  
Vol 10 (10) ◽  
pp. 3367
Author(s):  
Robert-Alexandru Dobre ◽  
Radu-Ovidiu Preda ◽  
Marian Vlădescu
Keyword(s):  
Real World ◽  
Point Of View ◽  
Electrical Network ◽  
Ambient Sound ◽  
Audio Recordings ◽  
Chirp Signals ◽  
Evolution Of Technology ◽  
Reliable Solution ◽  
Made In

Methods for inspecting the integrity of audio recordings become a necessity. The evolution of technology allowed the manufacturing of small, performant, recording devices and significantly decreased the difficulty of audio editing. Any person that participates in a conversation can secretly record it, obtaining their own version of the audio captured using their personal device. The recordings can be easily edited afterwards to change the meaning of the message. The challenge is to prove if recordings were tampered with or not. A reliable solution for this was the highly acclaimed Electrical Network Frequency (ENF) criterion. Newer recording devices are built to avoid picking up the electrical network signal because, from the audio content point of view, it represents noise. Thus, the classic ENF criterion becomes less effective for recordings made with newer devices. The paper describes a novel sonic watermarking (i.e., the watermark is acoustically summed with the dialogue) solution, based on an ambient sound that can be easily controlled and is not suspicious to listeners: the ticking of a clock. This signal is used as a masker for frequency-swept (chirp) signals that are used to encode the ENF and embed it into all the recordings made in a room. The ENF embedded using the proposed watermark solution can be extracted and checked at any later moment to determine if a recording has been tampered with, thus allowing the use of the ENF criterion principles in checking the recordings made with newer devices. The experiments highlight that the method offers very good results in ordinary real-world conditions.

World economy and international economic relations

2020 ◽  
Author(s):  
Ol'ga Baburina
Keyword(s):  
International Economic ◽  
World Economy ◽  
System Analysis ◽  
Point Of View ◽  
Modern World ◽  
Federal State ◽  
Economic Relations ◽  
International Economic Relations ◽  
The World ◽  
State Educational

The main provisions of the theory of the world economy and international economic relations are presented. The strengthening of the integrity of the world economy is justified. The most important indicators from the point of view of system analysis are given. The concepts, concepts and dynamics of development of key forms of international economic relations are revealed. The construction of the balance of payments of various countries is analyzed. In the proposed publication, to control the level of mastering the discipline on each topic, tests, topics of reports and abstracts are given, practice-oriented tasks are developed based on objective statistical data of recent years. Meets the requirements of the Federal state educational standards of higher education of the latest generation. For bachelors studying in the field of Economics, it can be useful for teachers who lead the disciplines "World economy", "World economy and international economic relations", as well as for anyone interested in the processes taking place in the modern world economic system and the role of Russia in it.

scholarly journals Tribological Behaviour of Ceramic Hip Replacements

2014 ◽  
Vol 89 ◽  
pp. 10-20
Author(s):  
Enrico Ciulli ◽  
Francesca Di Puccio ◽  
Lorenza Mattei ◽  
Santina Battaglia ◽  
Saverio Affatato
Keyword(s):  
Hip Prosthesis ◽  
Young Patients ◽  
Point Of View ◽  
Implant Design ◽  
Main Concern ◽  
Hip Implants ◽  
Tribological Behaviour ◽  
Hip Prostheses ◽  
Hip Replacements ◽  
History Of

Since 1960, when the first hip prosthesis was introduced, up to now, several implant typologies have been proposed trying to meet the increasing clinical demands of more and more active and young patients. A substantial evolution of implant design has been occurring, both in terms of materials and geometry, basically driven by their tribological performances. Indeed, the main concern of hip implants consists in the release of wear debris, which can lead to implant loosening and failure. Thus, many studies on wear and lubrication of hip prostheses have been published in the last 15 years, mainly focused on experimental researches but also on numerical/modeling approaches. The aim of this work is to review the history of hip implants from a tribological point of view with a focus on ceramic-on-ceramic replacements, which represent the most advanced solution in terms of wear strength and chemical inertness. The main drawbacks of these implants, as the brittleness and the squeaking, are discussed and novel solutions examined.

scholarly journals ARTIFICIAL INTELLIGENCE VERSUS PUBLIC ADMINISTRATION: LIMITATIONS OF APPLICATION

2019 ◽  
Vol 7 (3) ◽  
pp. 516-520
Author(s):  
Petr M. Morkhat ◽  
Igor V. Ponkin ◽  
Marina V. Markhgeym ◽  
Vladimir K. Botnev ◽  
Aidyn O. Turganbayev
Keyword(s):  
Artificial Intelligence ◽  
Public Administration ◽  
Research Methods ◽  
System Analysis ◽  
The State ◽  
Point Of View ◽  
Existing Problems ◽  
The Future ◽  
Long Time ◽  
Systemic Problems

Purpose of Study: The present study was designed to study possibilities, conditions, grounds and limitations regarding the use of technologies and units of artificial intelligence in public administration. Determinants of the need to use such technologies in public administration were also considered. In this study, directions of realizable engagement which is already implemented, as well as directions of the possible use of artificial intelligence units in the future for public administration were investigated to ensure the functioning of system of state executive bodies. Methodology: The present research carried out based on the application of research methods such as system analysis, synthesis, and classification. Using these research methods, the concepts of describing conditions, possibilities, modes and functional-target load of using technologies and units of artificial intelligence in public administration, as well as limitations of its application in public administration were developed. Results: It was found that the use of artificial intelligence by the state for performing its various own tasks is highly relevant as it might lead to finding many positive approbations. However, despite the fact that technologies and artificial intelligence units have been developed for a relatively long time, and some of them are already widely used, it is still impossible to talk about the integrated, fully tested and properly regulated implementation of this kind of technology and units for management, therefore, it is suggested to further investigate on this issue from a theoretical (prognostic) point of view, taking into account potential directions and possibilities regarding    the use of such technology and units. Implications/Applications: The use of technologies and units of artificial intelligence does not necessarily take into account as a panacea for solving the problems and may not lead to solving some systemic problems in public administration, but, on the contrary, may even aggravate some existing problems in public administration and contribute to the emergence of new problems and risks.

Sign in / Sign up

Export Citation Format

Share Document