Embedded System for Automatic Condensation Control of the Car

( Dmitriy Lee ),( Yong Wook Bae ),( Neung Ho Lee ),( Hee Don Seo ) 한국센서학회 2012 센서학회지 Vol.21 No.1

In this study, we designed an embedded system for automatic condensation control(ESCC) of the car. This system heats the car glasses as and when it is needed that makes driving safer and convenient. The system was built on an ATmega128L central processing unit(CPU), using high-performance electrically erasable programmable read-only memory(EEPROM) complex programmable logic device(CPLD) ATF1504AS, using which an ESCC algorithm has been proposed. The source code was written in C language. The algorithm of work was written using the dew-point table. This system not only clears the condensation on the glass but also averts condensation. The designed ESCC system begins working once the input information comes close to the dew-point table information. This device enables a wider field of view, thereby increasing safety.

High-Polyphenol Sorghum Bran Extract Inhibits Cancer Cell Growth Through ROS Induction, Cell Cycle Arrest, and Apoptosis

Dmitriy Smolensky,Davina Rhodes,D. Scott McVey,Zachary Fawver,Ramasamy Perumal,Thomas Herald,Leela Noronha 한국식품영양과학회 2018 Journal of medicinal food Vol.21 No.10

As diet is one of the major controllable factors in cancer development, potentially chemopreventive foods are of significant interest to public health. One such food is sorghum (Sorghum bicolor), a cereal grain that contains varying concentrations of polyphenols. In a panel of 15 sorghum germplasm, we identified strains with higher polyphenol content than previously reported for this grain. Bran extracts from the germplasm with the highest and lowest polyphenol content were then tested against HepG2 and Caco2 cancer cells to assess effects on cancer cell viability, reactive oxygen species, apoptosis, DNA damage, cell cycle arrest, and protein expression patterns. High-polyphenol extracts, but not low-polyphenol extracts, reduced cell viability by inducing apoptosis and cell cycle arrest following production of reactive oxygen species and oxidative DNA damage. The results indicate that high-polyphenol sorghum bran extracts have potential anticancer properties and warrant further research, not only to test against specific cancers but also to elucidate underlying mechanisms of action.

Control of the linear systems under uncertainty

Dmitriy V. Dolgy 장전수학회 2013 Advanced Studies in Contemporary Mathematics Vol.23 No.3

The general statement of problem of vitality of controlled systems is introduced. Mini-max, realistic and applied approaches for formulating and solving the problem of vitality are considered. It is shown that vitality problem for linear controlled systems is reduced to the problem of solving specific linear problem.

The nexus between energy-related aid, Electricity consumption, Carbon dioxide emissions and Economic growth.

( Dmitriy D Li ),( Jeong Hwan Bae ) 한국환경경제학회, 한국자원경제학회 ( 구 한국환경경제학회 ) 2017 한국환경경제학회 학술발표논문집 Vol.2017 No.하계

Economic development is closely related to higher levels of energy supply, which in turns, lead to higher GHG emissions, especially in developing countries. More and more policymakers consider Energyrelated aid is one of the key components of both Development and climate change strategies. This study investigates long run and short-run nexus between energy-related aid, CO2 emissions, economic growth and electricity consumption. By implementing PMG estimator for 30 countries in three income groups over the period 1995 to 2013, we find that energy-related aid has positive long-run impact on electricity consumption in low-income group only. The results also reveal long-run bi-directional relationship for CO2 emissions-GDP and GDP-electricity consumptions in low-income group, also for CO2 emissions-GDP and CO2 emissions-electricity consumption in upper middle-income group. Moreover, long run unidirectional relationships were found from CO2 emissions to electricity consumption in low-income group, from GDP and electricity consumption to CO2 emissions in lower middle-income group, and from electricity consumption to GDP in upper middle-income group. This finding can guide to allocate more of energyrelated aid to low-income countries.

The energy-related aid and Electricity access: Is climate compatible development possible?

( Dmitriy Li ),( Jeong Hwan Bae ) 한국환경경제학회·한국자원경제학회(구 한국환경경제학회) 2018 한국환경경제학회 학술발표논문집 Vol.2018 No.하계

The World Bank argued that achieving universal access to electricity is one of the most important goals set for the energy sector by governments in the developing world. According to the International Energy Agency report the electricity access in Sub-Saharan Africa in 2016 was 43% and achieve only 59% in 2030. In general, energy access projects in rural areas requires huge investment costs, while demand is low, due to low population density and persistent poverty. Thus, that kind of loss-making investment left for finance by governments and the foreign aid. Policymakers believe that the increase of energy access may improve the level of health, education, and income for poor. However, there are might be some negative consequences of energy accessibility such as increase of CO₂ emission due to combustion of fossil fuels. To best our knowledge, this study is the first attempts to examine whether energy-related aid can promote climate-compatible development by identifying the feasible impact of energy-related aid on CO₂ emissions, GDP and urban and rural electricity access as well as an overall relationship between these variables. For the empirical analysis, we employed a pool mean group estimator for panel data of 24 low-income Sub-Saharan African countries over the period 1995 to 2014. In addition to total energy-related aid we also used the renewable energy aid, and non-renewable energy aid. The estimation results reveal that in the long run total and sub-sectorial energy-related aid promote economic growth, but the impact on rural and urban electricity access is insignificant. In turn increase in GDP increase access to electricity, so energy-related aid might increase electricity access indirectly through GDP. We also find that renewable energy aid reduces CO₂ emissions, but the impact of total energy-related aid is still positive. According to the estimation results, we have the following suggestions to the donors and policymakers. First, more renewable energy aid is required to ensure the reduction of CO₂ emissions in Sub-Saharan African countries. Second, probably the reduction of the gap between required and current energy sector investment might ensure the global electricity access. However, the problem of aid inefficiency in recipient countries should be solved, since according to the Ministry of Energy and Minerals of Tanzania, only 14% of available funds for energy projects in 2008-2009 were actually disbursed.

Control of the systems subjected to amplitude perturbations

Dmitriy V. Dolgy 장전수학회 2014 Proceedings of the Jangjeon mathematical society Vol.17 No.3

It is considered mini-max, realistic and applied approaches for formulating and solving the problem of control of the system subjected to amplitude perturbations (vitality problem). It is shown that vitality problem for linear controlled system is reduced to the problem of solving specific linear problem.One important problem of constructing of terminal set by system of linear inequalities is solved.

Spectrometry Analysis of Fumes of Mixed Nuclear Fuel (U 0.8 Pu 0.2 )O 2 Samples Heated up to 2,000° C and Evaluation of Accidental Irradiation of Living Organisms by Plutonium as the Most Radiotoxic Fission Product of Mixed Nuclear Fuel

Dmitriy Kim,Roza Zhumagulova,Bibinur Tazhigulova,Gulzhanar Zharaspayeva,Galiya Azhiyeva 한국원자력학회 2016 Nuclear Engineering and Technology Vol.48 No.1

Purpose: The purpose of this work is to describe the spectrometric analysis of gaseous cloudformation over reactor mixed uranium-and-plutonium (UP) fuel (U0.8Pu0.2)O2 samplesheated to a temperature > 2,000 С, and thus forecast and evaluate radiation hazardsthreatening humans who cope with the consequences of any accident at a fission reactorloaded by UP mixed oxide (U0.8Pu0.2)O2, such as a mixture of 80% U and 20% Pu in weight. Materials and methods: The UP nuclear fuel samples were heated up to a temperature of over2,000 С in a suitable assembly (apparatus) at out-of-pile experiments' implementation, theexperimental in-depth study of metabolism of active materials in living organisms bymeans of artificial irradiation of pigs by plutonium. Spectrometric measurements werecarried out on the different exposed organs and tissues of pigs for the further estimation ofhuman internal exposure by nuclear materials released from the core of a fission reactorfueled with UP mixed oxide. Results: The main results of the research described are the following: (1) following theresearch on the influence of mixed fuel fission products (radioactive isotopes being formedduring reactor operation as a result of nuclear decay of elements included into the fuelcomposition) on living organisms, the authors determined the quantities of plutoniumdioxide (РuO2) that penetrated into blood and lay in the pulmonary region, liver, skeletonand other tissues; and (2) experiments confirmed that the output speed of plutonium out ofthe basic precipitation locations is very small. On the strength of the experimental evidence,the authors suggest that the biological output of plutonium can be disregarded inthe process of evaluation of the internal irradiation doses.

Vitality problem for linear controlled system

Dmitriy V. Dolgy 장전수학회 2013 Advanced Studies in Contemporary Mathematics Vol.23 No.1

The problem of vitality of the linear controlled system is introduced. It is shown that vitality problem is equivalent to the problem of solving linear system with interval coefficients. One constructive method of solving it is suggested.

ON IDENTIFICATION PROBLEM OF LINEAR INTERVAL DYNAMICAL SYSTEM

Dmitriy V. Dolgy 장전수학회 2018 Advanced Studies in Contemporary Mathematics Vol.28 No.1

We consider identification problem for linear dynamical sys- tems with interval coefficients of corresponding matrices. Using con- cepts of universal and sub-universal solutions of linear systems we obtain methods for construction identifiable parameter and get its properties.

Determinants of CO₂ Emissions for Post-Soviet Independent Countries

( Dmitriy D. Li ),( Jeong Hwan Bae ),( Meenakshi Rishi ) 한국환경경제학회·한국자원경제학회(구 한국환경경제학회) 2015 한국환경경제학회 학술발표논문집 Vol.2015 No.하계

We analyze the determinants of Carbon dioxide (CO₂) emissions for 15 Post-Soviet Union Independent (PSI) countries given their recent transition to market-based economies and their relatively high levels of corruption. We examine the direct and indirect effects of economic growth on CO₂ emissions for the PSI countries using a system generalized method of moment (GMM) approach to account for simultaneity among corruption, growth, and CO₂ emissions. We find a linear relationship between GDP and CO₂ emissions. Furthermore, GDP influences CO₂ emissions directly, but also indirectly through its impact on corruption. Similarly, corruption affects CO₂ emissions directly, as well as indirectly through its impact on GDP. We find that political democracy and economic freedom increase CO₂ emissions indirectly through their impact on economic growth. Improved energy efficiency and the EU climate policy reduce CO₂ emissions, while FDI inflows tend to increase CO₂ emissions. These findings suggest more investments in energy efficient technologies, reforestation, and emulating EU policies on emission abatement.