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Implementation of Combinational and Sequential Functions in Embedded Firmware
Vaclav Dvorak 보안공학연구지원센터 2008 International Journal of Software Engineering and Vol.2 No.1
The paper addresses firmware implementation of multiple-output combinational and sequential Boolean functions based on cascades of Look-Up Tables (LUTs). A LUT cascade is described as a means of compact representation of a large class of Boolean functions, which reduces their evaluation to multiple indirect memory accesses. A LUT-oriented decomposition technique is illustrated on several examples. A specialized micro-engine is proposed for sequential processing of LUT cascades by means of multi-way branching. The presented method provides high performance micro-programmed control for embedded applications.
( Jaroslav Dvorak ) 한국정책학회 2012 International Journal of Policy Studies Vol.3 No.1
This article assesses institutional and policy arrangements for evaluation within Bulgarian public administration to manage European Structural Fund support and use of evaluation requirements of EU structural funds as a limited cased study to map how these arrangements are (or are not) developing as well as isolating the key explanatory factors. To achieve the objectives of this research paper, we identified and investigated two variables: the coordination of the evaluation process and the evaluation scope and significance. Methodologically, we have used semi-structured qualitative interviews, applied to officials, academics, and evaluators. Starting from the pre-accession program PHARE as a legal obligation, evaluation is used as a tool for accountability to the European Commission. The current administrative culture has an impact on the success of the establishment of an effective evaluation capacity in Bulgaria.
Improvement of Ka-band satellite link availability for real-time IP-based video contribution
G. Berretta,P. Dvorak,M. Luglio,L. Luini,C. Riva,C. Roseti,F. Zampognaro 한국통신학회 2017 ICT Express Vol.3 No.3
New High Throughput Satellite (HTS) systems allow high throughput IP uplinks/contribution at Ka-band frequencies for relatively lower costs when compared to broadcasting satellite uplinks at Ku band. This technology offers an advantage for live video contribution from remote areas, where the terrestrial infrastructure may not be adequate. On the other hand, the Ka-band is more subject to impairments due to rain or bad weather. This paper addresses the target system specification and provides an optimized approach for the transmission of IP-based video flows through HTS commercial services operating at Ka-band frequencies. In particular, the focus of this study is on the service requirements and the propagation analysis that provide a reference architecture to improve the overall link availability. The approach proposed herein leads to the introduction of a new concept of live service contribution using pairs of small satellite antennas and cheap satellite terminals.
Martin Pesta,Miroslava Cedikova,Pavel Dvorak,Jana Dvorakova,Vlastimil Kulda,Kristyna Srbecka,Ludek Muller,Vendula Bouchalova,Milena Kralickova,Vaclav Babuska,Jitka Kuncova,Dana Mullerova 대한독성 유전단백체 학회 2018 Molecular & cellular toxicology Vol.14 No.4
Backgrounds: Exposure to lipophilic environmental pollutants has been explored as a risk factor of development of diabetes mellitus in obese. Adipose tissue is a reservoir of bioaccumulative lipophilic contaminants including p,pʹ-dichlorodiphenyldichloroethylene (DDE). Our aim was to analyze the effect of DDE (in concentrations 0.1 μM, 1 μM, and 10 μM) on adipocyte differentiation and insulin signalling pathway on in vitro adipogenic model of human adipose derived mesenchymal stem cells (hADMSC). Methods: The effect of DDE was monitored by analysis of expression (RT qPCR, Western blotting) of genes involved in adipocyte differentiation and insulin signalling pathway including lipid metabolism on days 0, 4, 10, 21, 28 of differentiation. Results: The main observation was significant increase of INSR, LIPE, FASN, SREBP1, OCT4 and AKT2 expression under influence of DDE. We did not record any increase of the active form of Akt. Conclusion: Our findings suggest that DDE exposure changes the differentiation of adipocytes, enhances the lipid metabolism and so may play a role in the development of obesity and metabolic diseases by affecting the insulin signalling pathway. The influence of DDE seems to be similar to the effect of insulin itself. However, further studies to elucidate the mechanism of action of DDE are necessary.