Anatomically and functionally constrained MEG/EEG source estimates: Theoretical background and practical implementation

1900 ◽  
Vol 4 ◽  
Author(s):  
Hamalainen Matti
2009 ◽  
Vol 60 (2) ◽  
pp. 459-466 ◽  
Author(s):  
I. Irizar ◽  
J. A. Zambrano ◽  
D. Montoya ◽  
M. De Gracia ◽  
R. García

Based on on/off aeration strategies, this paper describes all the steps involved in the development and implementation of three identification algorithms aimed at monitoring the oxygen uptake rate (OUR), the oxygen mass-transfer coefficient (KLa), and oxygen transfer efficiency (OTE) in aerated biological reactors. Firstly, a detailed explanation of the theoretical background behind every algorithm is given. In addition, practical issues have also been taken into account in order to guarantee the quality of estimations. Finally, the three algorithms have been implemented and validated in a full-scale industrial wastewater treatment plant with satisfactory results. Although short-term noise has been observed in the estimated data (especially at high OURs), the medium and long-term data trajectories have been correctly reproduced.


2021 ◽  
pp. 1-21
Author(s):  
Alvyra Galkienė ◽  
Ona Monkevičienė

AbstractThe experience of the development of inclusive education strategies in various countries has been the source of various conceptions and practices, which have gradually evolved into the axis of the education policy of the late twentieth and early twenty-first century. This chapter presents an overlook of insights that are significant for the practical implementation of inclusive education and substantiated by scientific research. As the perception of inclusive education developed from meeting special educational needs in general schools (Florian. Int J Incl Educ 23(7–8): 691–704. 10.1080/13603116.2019.1622801, 2019) to recognising the variety of needs of all students (Meyer et al. Universal design for learning: theory and practice. CAST, 2014), the Universal Design for Learning (UDL) approach was presented to the pedagogical circles. This chapter of the book examines the fundamental aspects of the UDL approach in the context of the development of the inclusive education construct, from emphasising the Zone of Proximal Development (Vygotsky. Thought and language. MIT Press, 1962) to highlighting the processes taking place in the inclusive education ecosystem (European Agency for Special Needs and Inclusive Education. Inclusive school leadership: exploring policies across Europe. (E. Óskarsdóttir, V. Donnelly & M. Turner-Cmuchal, Eds.). Odense, Denmark. https://www.european-agency.org/sites/default/files/sisl_synthesis_report.pdf. Retrieved 16 April 2021, 2019), revealing the variety of perceptions of student uniqueness and education differentiation concepts in implementing inclusive education, and discussing the differences between the specificities of education goals and their implementation in the UDL and traditional approaches. The analysis of scientific research allowed us to distinguish the basic aspects of the UDL approach that are significant for the transformation of the traditional education system into a high-quality one based on the presumptions of success for every student and formed on the grounds of inclusive education.


2020 ◽  
Vol 11 (5) ◽  
pp. 1060
Author(s):  
Nadiya GRAZHEVSKA ◽  
Alla MOSTEPANIUK

The paper provides the in-deep analysis of the theoretical background of the necessity and efficiency of the ecological component of corporate social responsibility. The distinguish features of four approaches of corporate social responsibility are identified in order to build a comprehensive view of the evolution of the understanding the vital role of the nature in the context of reaching the long-run goals of business and humanity in general. Additionally, sustainability policies of the most ecologically responsible companies were studied to monitor the specifics of their formulation and the ways to prevent the environmental degradation and climate change. Moreover, the implemented eco-oriented activities by companies were analysed to classify the common activities and to evaluate the level of their involvement. The results indicated the gap between the well-developed theoretical background and the poor participation of business in solving and prevention ecological issues.


2014 ◽  
Vol 11 (1) ◽  
pp. 159-173 ◽  
Author(s):  
Marko Rosic ◽  
Borislav Jeftenic ◽  
Milan Bebic

This paper presents ? practical implementation of direct torque control (DTC) of an induction machine on MSK2812 DSP platform, and the analysis of possibilities for reduction of torque ripple. Basic theoretical background relating the DTC was primarily set and the obtained experimental results have been given. It is shown that the torque ripple can be reduced by adjusting the intensity of voltage vectors and by modification of hysteresis comparator, while the simplicity of the basic DTC algorithm has been maintained.


2021 ◽  
Vol 10 (3) ◽  
pp. 1232-1244
Author(s):  
Mihoub Youcef ◽  
Toumi Djilali ◽  
Sandrine Moreau ◽  
Hassaine Said ◽  
Daoud Bachir

The aim of this work is to improve the dynamics and to overcome the limitation of conventional fixed parameters PI controller used in induction motor (IM) field-oriented control (FOC). This study presents and implements a RST and an adaptive fuzzy controller (AFC) to enhance variable speed control. Theoretical background of theses controllers is outlined and then experimental results are presented. Practical implementation has been realized on a board with a 1.1 KW IM supplied by 10 KHz space vector pulse width modulation current regulated inverter used as power amplifier consisted of 300V, 10A IGBT and Matlab/Simulink environment. Test benches have been established under different operating conditions in order to evaluate and compare the performances of the PI, IP, and polynomial RST and adaptive fuzzy controllers. Parameter variations for the rotor and the inertia moment variation were done in order to compare and verify the robustness of each controller. High dynamic performances and robustness against parameters variation were obtained with the use of both RST and AFC.


2021 ◽  
Vol 24 (4) ◽  
pp. 189-205
Author(s):  
Kateřina Matušínská ◽  
Michal Stoklasa

The aims of the paper are: 1) to verify the validity of the traditional theoretical definition of the Foote, Cone & Belding (FCB) model based on the use of representative products concerning the age (generation) and gender of the selected target group in the conditions of the Czech Republic, and 2) to verify the validity of defined advertising strategies in the traditional theoretical conception of the Foote, Cone & Belding (FCB) model with the current level of acceptance and perception of advertising within the defined selected target group according to age (generation) and gender in the conditions of the Czech Republic. To meet both aims, both secondary and primary marketing research was implemented. The theoretical background of the paper is based on knowledge of marketing communication principles in general with emphasis on advertising theories. The greatest attention is focused on the traditional version of the FCB model which is based on a matrix of consumer thinking–feeling and high–low involvement behaviours and proposes four advertising strategies. Primary research data were obtained using a questionnaire, on the online panel of research agency Ipsos, on 1,100 Czech respondents. The methods used are positional maps for the FCB grid and chi-squared with a suitable post-hoc test. The outputs reveal the differences of the theoretical FCB model in comparison with its practical implementation. It is necessary to adapt (extend) the model according to specific conditions and identification features of different Czech generations and genders, then adjust recommendations for advertising strategies. In Czech conditions, the sextant grind should be used. There is a prevalence of representative product placement in quadrants 1 and 3, i.e., rational appeals even for products where this is not expected. The outcomes can be used for the choice of correct advertising strategy, advertising media, and types.


Author(s):  
Jānis Bauvars ◽  

Technological advancements are often adopted to financial markets to improve their operations and safety. Blockchain technology has been recognized as one of the potential technologies to be utilized in capital markets. The goal of this article is to evaluate the applicability of using the blockchain technology in securities settlement process. First, the theoretical background of blockchain technology is reviewed and the current financial market infrastructure is examined. Then Central Securities Depositories Regulation and the current securities settlement processes are examined. Blockchain applicability framework designed by Gourisetti, Mylrea and Patangia is applied to assess the blockchain technology’s applicability to securities settlement. The results suggest that blockchain technology can be applied to securities settlement, and the used blockchain type should be a private blockchain with Proof-of-Authority consensus mechanism. A blockchain architecture model, based on a model provided by Zhuang, Chen, Shae and Shyu, and potential node structure for securities settlement are developed, taking into account the existing literature on blockchain technology, financial markets, and Central Securities Depositories Regulation. The proposed blockchain architecture model and node structure are then evaluated against scholar expected benefits and drawbacks of using blockchain for securities settlement and cross-border settlement efficiency. The evaluation reveals that the proposed blockchain technology model can potentially improve some of the current securities settlement issues, such as costly reconciliation and difficult cross-border securities settlement. At the same time, using blockchain technology in securities settlement would be challenging because the practical implementation time would be long and would require market-wide commitment. The main artefacts of this article are the proposed blockchain architecture model and node structure that would allow securities settlement processes to be executed using blockchain technology.


Author(s):  
T. V. Gerasimov ◽  
M. A. Taleisnik ◽  
N. A. Shcherbakova ◽  
I. M. Svyatoslavova

The development of technologies of flour confectionery products, carried out by the all-Russian research Institute of the confectionery industry, is in the field of knowledge of industrial engineering, which are tools for creating innovative technologies. Innovation, confectionery companies carried out by combining equipment, control, measuring and information systems, by eliminating technical contradictions between the operation and control of technological flow. Theoretical prerequisites for the management of technologies of flour confectionery products were the provisions of the system approach and physico-chemical mechanics. Thus, by determining the criteria and regulation of the rheological properties of confectionery masses provides stabilization of the process and it becomes possible to control the intermediate stages and the flow of technology as a whole for different types of products that have a common principle of the structure of the process. For the purpose of practical realization of theoretical prerequisites of technology management the Institute has developed a complex of technological methods. Obtaining of two-phase systems for each type of raw material provides the possibility of adapting the technology to the use of raw materials with a significant range of quality characteristics. Increasing the amount of "free" water provides a test with a given humidity. The flow of components for kneading dough ensures an increase in the uniformity of the distribution of components. Control of the degree of dissolution of sugar provides products with specified structural and mechanical parameters. The use of a new type of energy supply provides an increase in the number of solid phase particles in the emulsion more than 75 times and intensification of the process. Methods of obtaining semi-finished products on the basis of fruits and vegetables provides the possibility of obtaining semi-finished products from fresh fruits and vegetables according to the technologies developed by the Institute. Also in practical implementation it is necessary to use developments of Institute in which the basic principles of creation of innovative technologies of flour confectionery with the set structure and properties are lit.


Author(s):  
R. C. Gonzalez

Interest in digital image processing techniques dates back to the early 1920's, when digitized pictures of world news events were first transmitted by submarine cable between New York and London. Applications of digital image processing concepts, however, did not become widespread until the middle 1960's, when third-generation digital computers began to offer the speed and storage capabilities required for practical implementation of image processing algorithms. Since then, this area has experienced vigorous growth, having been a subject of interdisciplinary research in fields ranging from engineering and computer science to biology, chemistry, and medicine.


Author(s):  
C. C. Ahn ◽  
S. Karnes ◽  
M. Lvovsky ◽  
C. M. Garland ◽  
H. A. Atwater ◽  
...  

The bane of CCD imaging systems for transmission electron microscopy at intermediate and high voltages has been their relatively poor modulation transfer function (MTF), or line pair resolution. The problem originates primarily with the phosphor screen. On the one hand, screens should be thick so that as many incident electrons as possible are converted to photons, yielding a high detective quantum efficiency(DQE). The MTF diminishes as a function of scintillator thickness however, and to some extent as a function of fluorescence within the scintillator substrates. Fan has noted that the use of a thin layer of phosphor beneath a self supporting 2μ, thick Al substrate might provide the most appropriate compromise for high DQE and MTF in transmission electron microcscopes which operate at higher voltages. Monte Carlo simulations of high energy electron trajectories reveal that only little beam broadening occurs within this thickness of Al film. Consequently, the MTF is limited predominantly by broadening within the thin phosphor underlayer. There are difficulties however, in the practical implementation of this design, associated mostly with the mechanical stability of the Al support film.


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