The impact of hydroelectric projects on water regime

The purpose of this paper is to discuss the impacts of hydropower plants of Mavcice and Medvode on the water regime of the plain Kranjsko-Sorško polje, Slovenia. Both hydropower plants are situated on the Sava River between Kranj and Medvode on an aquifer layer of variable thickness. The hydropower plants have changed the river regime into a lake regime. As a result, the infiltration of the Sava into groundwater increased, while sediment transport was cut off. We prepared the water balance of the Sava River, a groundwater model of Kranjsko-Sorško polje using\ud Modflow and a comparison of volume of both reservoirs. We established the flow rate and directions of groundwater flow, a larger inflow at the Medvode hydropower plant, which is a\ud consequence of groundwater drainage downstream from the hydropower plant Mavcice, and\ud considerable volume change in the Mavcice reservoir. Due to sedimentation the infiltration of the\ud Sava is decreasing, which was demonstrated with measurements of piesometric pressures

The role of snow in the hydrological cycle on the Sava River basin

The purpose of the master degree thesis was to determine the role of snow in the hydrological cycle on Sava River basin. The reason for choosing the Sava River basin is two-fold: it is the largest basin in Slovenia and its hinterland is in the mountains, where snow cover is present each winter. It is important to know and to be able to predict the flow of the Sava River because of flood safety and hydropower production of many hydropower plants on the Sava River. First, we discuss the geological, hydrogeological, hydrographical and meteorological characteristics of the Sava River Basin helping us to determine the snow melt impact on the Sava River flow. We calculated the correlations between the Sava River flow and snow cover and concluded that there was no direct link between the two variables. Furthermore, we compared the measurements of flow and snow cover in winter season and in spring thaw. During spring thaw there is a rise in river flow but it is hard to determine the exact impact of snowmelt on the flow as a result of spring precipitation. We also made a simulation of spring thaw with our IHMS-HBV model of the Sava River basin and concluded that the model gives better results with lower local and time resolution. We then compared the model results with measurements and concluded that the model, having a higher local resolution, gives better results of snow pack determination than satellite images

Title does matter: a cross-sectional study of 30 journals in the Medical Laboratory Technology category

Introduction: First impression on potential readers is created by the title; therefore, authors should give importance to the title structure. The aim of this study was to establish whether articles created by a smaller number of authors and with shorter, descriptive or declarative titles gain more citations and whether article title length and number of authors correlate to the number of citations. Material and methods: A cross-sectional study on article citation data for 30 scientific journals published in 2016 in Medical Laboratory Technology field according to Web of Science database was conducted. The type of article, type of title, as well as number of words in the title and number of authors was recorded. Results: In the group of original articles (N = 2623), articles with declarative titles (N = 336, 13%) showed statistically higher number of citations in multiple comparison analysis when compared to descriptive titles (P < 0.001). No correlation was found between number of citations and title word count (r = 0.07, P < 0.001) nor between number of citations and number of authors in group of original articles (r = 0.09, P < 0.001). Original articles with descriptive titles longer than 15 words or with more than six authors are cited more (P = 0.005 and P < 0.001, respectively). Conclusion: Based on results of our study, titles do matter. Therefore, authors of original articles might want to consider including their findings in the title and having longer titles

Influence of Small Amount of Water Addition in the Extraction Process on the Olive Oil Yield and Phenolic Compounds

Climate changes have a significant influence on rainfall quantity, on the loss of soil humidity and consequently loss of water in olive fruit. The loss of fruit moisture could result in dry olive paste during oil production, which makes extraction of olive oil difficult and could lead to lower oil yield. Addition of water during the malaxation process is suggested to overcome this problem, but this could cause a reduction of the phenolic compounds in obtained oil. The aim of this study was to investigate the effect of the addition of a small amount of water (5% w/w) in \u27Leccino\u27 cv. olive paste during malaxation on the oil yield, extractability index and oil phenolic profile. The intention was to investigate whether it was possible to achieve the benefit of improved oil extractability and at the same time preserve the major proportion of valuable phenolic compounds. The addition of 5% of water to the olive paste during malaxation had no influence on oil yield and extractability index. On the other hand, water addition caused an increase in the concentration of total secoiridoids and total flavonoids, while total simple phenolic compounds decreased. The obtained results pointed out that even if a small amount of water addition during malaxation had no significant influence on oil yield and extractability index, the resulting changes in oil phenolic profile indicated the possibility of a positive influence on its oxidative stability, and consequently extension of its shelf life

Influence of Small Amount of Water Addition in the Extraction Process on the Olive Oil Yield and Phenolic Compounds

Climate changes have a significant influence on rainfall quantity, on the loss of soil humidity and consequently loss of water in olive fruit. The loss of fruit moisture could result in dry olive paste during oil production, which makes extraction of olive oil difficult and could lead to lower oil yield. Addition of water during the malaxation process is suggested to overcome this problem, but this could cause a reduction of the phenolic compounds in obtained oil. The aim of this study was to investigate the effect of the addition of a small amount of water (5% w/w) in \u27Leccino\u27 cv. olive paste during malaxation on the oil yield, extractability index and oil phenolic profile. The intention was to investigate whether it was possible to achieve the benefit of improved oil extractability and at the same time preserve the major proportion of valuable phenolic compounds. The addition of 5% of water to the olive paste during malaxation had no influence on oil yield and extractability index. On the other hand, water addition caused an increase in the concentration of total secoiridoids and total flavonoids, while total simple phenolic compounds decreased. The obtained results pointed out that even if a small amount of water addition during malaxation had no significant influence on oil yield and extractability index, the resulting changes in oil phenolic profile indicated the possibility of a positive influence on its oxidative stability, and consequently extension of its shelf life