23 research outputs found

    Characteristics of Petit verdot grape variety (Vitis vinifera L.) grown in Tikveš vineyards

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    Research is being performed to the variety of Petit verdot. The vineyards are sited on the Lepovo-Tikveš vineyards, in the property of Bovin winery. Plantation is started in 2008 with certified plantation material, 2.4 m planting distance between rows, and 1.0 m distance between vines in a row. The training system is Guyot two arms, with 20 eyelets leaving the vine. Some optimal agro-technical and ampelo-technical measures are applied. The plantation is under drip irrigation system. During the research period (2011– 2012) the following items were included: yield (kg/vine), chemical composition of grape must (sugar, total acid, pH), and chemical analysis of wine. The results show considerable variation in yield interest (14.48), which is due to the age of the crop, whether it is in the second (2011) or in the third (2012) year of birth. The must contains 230 g/L sugar and 5.5 g/L total acids, average for the test period. The wine has a high content of extract (40 g/L) and 13.11% vol alcohol, which is due to selective grape harvesting and the way of vinification (winemaking)

    Seismic Vulnerability Assessment of Representative Building Typologies from Barcelona‘s Eixample District

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    Unreinforced masonry buildings prevail in many old historical centres and urban areas worldwide. These structures may present inadequate seismic performance because they were often designed without considering any seismic resistance requirements. Therefore, they may be highly vulnerable and susceptible to damage caused by earthquakes, even of low intensity. This work investigates the seismic vulnerability of typical unreinforced masonry buildings situated in the Eixample district of Barcelona, Spain. Most of the buildings of the district were designed only for vertical static loads with slender load-bearing masonry walls and flexible diaphragms. A typical characteristic is the presence of openings with considerable size on the facades. The identification of the main parameters affecting the structural behaviour under lateral loading is necessary to evaluate the seismic vulnerability. As a first step, a building taxonomy for the Eixample district has been prepared in order to classify the different building typologies by taking into account the influence of the structural features in the overall response. This typology classification serves two aims. The first aim is to empirically evaluate the vulnerability of each category. The second one is to provide the basis for creating a numerical model of a representative building and analyse its seismic performance. The main objective of this paper is to assess the seismic behaviour of a typical unreinforced masonry structure by means of nonlinear static analysis. For this purpose, a three-dimensional Finite Element model of a representative building has been prepared. Pushover analyses have been performed in two directions (parallel and perpendicular to the façades) aiming to identify the typical failure mechanisms and the seismic capacity. The performance of the representative building typology, with its typical heterogeneities and irregularities, is compared with that of a reference regular unreinforced masonry structure. Additionally, a parametric analysis is carried out to evaluate the different seismic response by adding more storeys in height. This work is the basis for future analyses devoted to large scale seismic vulnerability assessment of the most representative building typologies of the Eixample district

    ВЛИЈАНИЕ НА АМБАЛАЖАТА ВРЗ РОКОТ НА ТРАЕЊЕ НА ПРЕХРАНБЕНИТЕ ПРОИЗВОДИ

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    The shelf life of the food was actually period in which the product is considered suitable for consumption. By understanding the factors that influenceto the shelf life of the product, it is possible manipulation of these factors in order to extend the shelf life of the product. There are several factors that affect the shelf life such as: the manufacture of the product, freezing , chemical changes, as well as, food packaging. These factors can contribute to reducing the amount of food that is thrown away because of the short shelf life. There is scientific basis for assessing the shelf life using mathematical expressions that are useful in predicting the degradation of food products during storage. It is based on the principles of chemical kinetics. Actually, the changes in the quality (Q) can be observed and measured over time. The shelf life of the food products based on changes in quality in relation to the time can follow kinetics of zero order or first order. Using these calculations the phases of reducing the quality and accuracy of the product can be predicted

    Native Speaker Perceptions of Accented Speech: The English Pronunciation of Macedonian EFL Learners

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    The paper reports on the results of a study that aimed to describe the vocalic and consonantal features of the English pronunciation of Macedonian EFL learners as perceived by native speakers of English and to find out whether native speakers who speak different standard variants of English perceive the same segments as non-native. A specially designed computer web application was employed to gather two types of data: a) quantitative (frequency of segment variables and global foreign accent ratings on a 5-point scale), and b) qualitative (open-ended questions). The result analysis points out to three most frequent markers of foreign accent in the English speech of Macedonian EFL learners: final obstruent devoicing, vowel shortening and substitution of English dental fricatives with Macedonian dental plosives. It also reflects additional phonetic aspects poorly explained in the available reference literature such as allophonic distributional differences between the two languages and intonational mismatch

    Characteristics of Petit verdot grape variety (Vitis vinifera L.) grown in Tikveš vineyards

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    Research is being performed to the variety of Petit verdot. The vineyards are sited on the Lepovo-Tikveš vineyards, in the property of Bovin winery. Plantation is started in 2008 with certified plantation material, 2.4 m planting distance between rows, and 1.0 m distance between vines in a row. The training system is Guyot two arms, with 20 eyelets leaving the vine. Some optimal agro-technical and ampelo-technical measures are applied. The plantation is under drip irrigation system. During the research period (2011– 2012) the following items were included: yield (kg/vine), chemical composition of grape must (sugar, total acid, pH), and chemical analysis of wine. The results show considerable variation in yield interest (14.48), which is due to the age of the crop, whether it is in the second (2011) or in the third (2012) year of birth. The must contains 230 g/L sugar and 5.5 g/L total acids, average for the test period. The wine has a high content of extract (40 g/L) and 13.11% vol alcohol, which is due to selective grape harvesting and the way of vinification (winemaking)

    (CO2)(n)(+), (H2O)(n)(+), and (H2O)(n)(+) (CO2) gas cluster ion beam secondary ion mass spectrometry : analysis of lipid extracts, cells, and Alzheimer's model mouse brain tissue

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    This work assesses the potential of new water cluster-based ion beams for improving the capabilities of secondary ion mass spectrometry (SIMS) for in situ lipidomics. The effect of water clusters was compared to carbon dioxide clusters, along with the effect of using pure water clusters compared to mixed water and carbon dioxide clusters. A signal increase was found when using pure water clusters. However, when analyzing cells, a more substantial signal increase was found in positive ion mode when the water clusters also contained carbon dioxide, suggesting that additional reactions are in play. The effects of using a water primary ion beam on a more complex sample were investigated by analyzing brain tissue from an Alzheimer's disease transgenic mouse model. The results indicate that the ToF-SIMS results are approaching those from MALDI as ToF-SIMS was able to image lyso-phosphocholine (LPC) lipids, a lipid class that for a long time has eluded detection during SIMS analyses. Gangliosides, sulfatides, and cholesterol were also imaged

    Characteristics of Sangiovese grape variety (Vitis vinifera L.) grown in Tikveš vineyards

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    Studies were carried out to the variety Sangiovese of manufacturing plants located in the site Lepovo-Tikveš vineyards and all of this in property of the Bovin Winery. During the period of study (2011-2012 year) the following items were included: realized yields (kg/vine), chemical composition of grape must (sugar content, total acids, pH) and chemical analysis of wine. The results show considerable variation in yield (coefficient of variation was 18.45) which is due to the age of the crop or it is in the second (2011) and third (2012) year of birth. The must contains 224 g/L sugar and 6.75 g/l total acids average for the test period. The wine has a high content of extract (33 g/L) and alcohol from 12.90 vol% which is due to selective harvesting of grapes and the way of vinification

    Helminthofauna of Ohrid gudgeon (Gobio ohridanus Karaman, 1924) from the Lake Ohrid, Macedonia

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    Total, 94 specimens of gudgeon (Gobio ohridanus Karaman, 1924) from the Macedonian part of the Lake Ohrid were examined and 61 fishes (64.89%) were infected with parasites. The presence of 4 parasite species was established: Dactylogyrus cryptomeres f. typica (Monogenea), Cystidicoloides tenuissima and Philometra ovata (Nematoda), and Pomphorhynchus laevis (Acanthocephala). The highest prevalence and intensity of infection was with Dactylogyrus cryptomeres f. typica (59.57%; mean intensity 6.07). The lowest one was with Cystidicoloides tenuissima and Philometra ovata (2.13%;1.0). Dactylogyrus cryptomeres f. typica is recorded for the first time in the ichthyoparasitofauna of Lake Ohrid and Macedonia
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