540 research outputs found
Power-Aware Memory Allocation for Embedded Data-Intensive Signal Processing Applications
Many signal processing systems, particularly in the multimedia and telecommunication domains, are synthesized to execute data-intensive applications: their cost related aspects namely power consumption and chip area are heavily influenced, if not dominated, by the data access and storage aspects. This chapter presents a power-aware memory allocation methodology. Starting from the high-level behavioral specification of a given application, this framework performs the assignment of of the multidimensional signals to the memory layers the on-chip scratch-pad memory and the off-chip main memory the goal being the reduction of the dynamic energy consumption in the memory subsystem. Based on the assignment results, the framework subsequently performs the mapping of signals into the memory layers such that the overall amount of data storage be reduced. This software system yields a complete allocation solution: the exact storage amount on each memory layer, the mapping functions that determine the exact locations for any array element (scalar signal) in the specification, and, in addition, an estimation of the dynamic energy consumption in the memory subsystem
GENETIC POLYMORPHISM AT THE K-CASEIN LOCUS IN A DAIRY HERD OF ROMANIAN SPOTTED AND BROWN OF MARAMURES BREEDS
Caseins are a family of milk proteins that exist in several molecular forms and arethe main proteins present in the bovine milk. Genetic variation of these proteins hasbeen associated with the quality and quantity of cheese derived from milk.This study was focused on possibilities to evaluate the frequency of the K-casein Ballele in dairy herds from the Research and Development Station for Bovine RaisingArad in order to have breeding programs that target an increase in the frequency ofthe B allele in the dairy cattle population.In order to differentiate the favorable genotype for superior composition and highercheese yield, we used simple DNA extraction method from fresh blood andtechniques based on DNA analysis, which include polymerase chain reaction andrestriction fragment length polymorphisms (PCR-RFLP) methods. Employing thesetechniques we were able to determine the k-casein genotype of all individuals in agiven population under selection, regardless of sex, age or physiological stage.As a result, it is now possible to include information on milk protein genotypes intomarker assisted selection programs and consequently improve response to selection
RESEARCH REAGRDING ACID SOILS IMPROVEMENT USING A WASTE FROM METALLURGY
The soil reaction value depend on the soil percentage base saturation degree and of the saturation type (predominantly with calcium or sodium). At the same time, the soil moisture regime, percolative or periodically percolative, the long application of nitrogen fertilizers, acid pollution, determine the deep leaching of bases. So, the upper part of soil suffers an acidification process especially under the conditions without liming. Generally, soil pH values less than 5,5 ensure conditions for strong solubilization of pollutants and their translocation into plants. Particular problems are raised by the very strongly and strongly acid soils (0,60% and 6,57%, respectively), some of the being specific for the mountainous pastures. In Romania are 1 867 000 ha acid agricultural land, representing over 12% from the total agricultural surface of the country. On the other hand, in Romania are produced annually from 0.18 to 0.2 million tones ladle slag (LF slag) from steel refinery, classified as a dangerous waste due to its alkalinity (alkalinity index 3.5-4.5)
RESEARCH REGARDING THE INFLUENCE OF LF SLAG ON CHROMIC LUVISOL REACTION AND WHEAT YIELD IN THE EXPERIMENTAL FIELD FROM MOARA DOMNEASCĂ
Lately,changing soil reaction as a consequence of culture technologies necessary measures to amend and improve them. The areas of soils with high acidity in Romania are very large and their improvement is expensive and lengthy. High acidity is due on the one hand, soil genesis and secondly the use of technologies and fertilizers which have decreased reaction from year to year. The research wereconducted in 2014 in the experimental field at Moara Domnească by using LF slag from metallurgy onthe chromic luvisol, demonstrated that it can be used as an amendment to correct acidic soil reaction. Increasing soil reaction resulted a better use of nutrients from soil and a significant increase in wheat yield. The highest yield were registered by the application rates of more than 3 t/ha of slag together with nitrogen (100 kg/ha)
RESEARCH REGARDING OXIDATION OF CLAY MINERALS FROM SOILS OF ROMANIA
An oxidation method with oxygenated water was used on the separated calcium saturated clay fractions and were estimated the concentrations of smectite and illite by means of X-ray diffraction patterns.The used oxidation method with oxygenated water makes an alteration of all colloidal particles in suspension in contrast with the partial alteration in soil profile due to the structure and settling states of soil horizons.The illite crystallinity indices are greater than those of smectite and show that illite has greater particles and higher ordering of atoms on broken surface and in lattice structure. This suggest a particle corrosion with a releasing of some structural elements and an accentuation of the illite→smectite transformation
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