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Climatic factors play a key role in determining the suitability of a given region for specific cultivars and wine types and the responses of individual grapevine cultivars to climate are of utmost importance for activity planning and decision making in viticulture. The study investigated the effect of climate conditions from 2006 till 2018 on the performance of cv. Syrah cultivated in two vineyards in Lebanon; Kanafar (at 1,020 m.a.s.l) and Mansoura (at 850 m.a.s.l). Cluster analysis based on climate indicators divided years into two clusters; in Kanafar (cluster 1: 2006–2015, cluster 2: 2016–2018) and in Mansoura (cluster 1: 2006 to 2008, cluster 2: 2009 to 2018). Solar radiation (May-June) and average wind speed (July-August-September) were the most influential predictors in Kanafar and Mansoura, respectively. In Kanafar, average yield and weight of 200 berries decreased by 21% and 22.7 g respectively in cluster 2, but in Mansoura only average yield increased by 3.7% in cluster 2. Total soluble solids and titratable acidity were not significantly affected by the shift in climate conditions at both vineyards, however total anthocyanin potential was significantly lower in Kanafar (by 114.2 mg kg-1 ) and higher in Mansoura (by 353.4 mg kg-1 ) in cluster 2. Total polyphenolic richness was only affected in Kanafar (reduction by 42 mg GAE g-1 in cluster 2). Syrah performance was more negatively affected by the changing climate conditions at Kanafar rather than Mansoura vineyards and it seems to better adapt to climate conditions of Mansoura overcoming the shift in climate that occurred after 2008 there.

Climatic factors play a key role in determining the suitability of a given region for specific cultivars and wine types and the responses of individual grapevine cultivars to climate are of utmost importance for activity planning and decision making in viticulture. The study investigated the effect of climate conditions from 2006 till 2018 on the performance of cv. Syrah cultivated in two vineyards in Lebanon; Kanafar (at 1,020 m.a.s.l) and Mansoura (at 850 m.a.s.l). Cluster analysis based on climate indicators divided years into two clusters; in Kanafar (cluster 1: 2006–2015, cluster 2: 2016–2018) and in Mansoura (cluster 1: 2006 to 2008, cluster 2: 2009 to 2018). Solar radiation (May-June) and average wind speed (July-August-September) were the most influential predictors in Kanafar and Mansoura, respectively. In Kanafar, average yield and weight of 200 berries decreased by 21% and 22.7 g respectively in cluster 2, but in Mansoura only average yield increased by 3.7% in cluster 2. Total soluble solids and titratable acidity were not significantly affected by the shift in climate conditions at both vineyards, however total anthocyanin potential was significantly lower in Kanafar (by 114.2 mg kg-1 ) and higher in Mansoura (by 353.4 mg kg-1 ) in cluster 2. Total polyphenolic richness was only affected in Kanafar (reduction by 42 mg GAE g-1 in cluster 2). Syrah performance was more negatively affected by the changing climate conditions at Kanafar rather than Mansoura vineyards and it seems to better adapt to climate conditions of Mansoura overcoming the shift in climate that occurred after 2008 there.

In the energy industry, smart metering and sensor technology provides access to unprecedented amount of information, thus rapidly expanding a dissimilar and compound big set of data which is handled by the Energy Management Systems. This manuscript per the authors presents a generic architecture of Energy Management System suited to handle structured, semi-structured and unstructured data, coming from various sources in a heterogeneous workload. The paper focuses on the main operational subsystems and the database management challenge in the Internet of Things.

In the energy industry, smart metering and sensor technology provides access to unprecedented amount of information, thus rapidly expanding a dissimilar and compound big set of data which is handled by the Energy Management Systems. This manuscript per the authors presents a generic architecture of Energy Management System suited to handle structured, semi-structured and unstructured data, coming from various sources in a heterogeneous workload. The paper focuses on the main operational subsystems and the database management challenge in the Internet of Things.

The usage of high voltage discharge in liquid finds many technological applications. Control of the moment when the discharge occurs in systems with capacitive energy storage, suggests the usage of a high voltage controllable switch, most often trigatron or thyratron, i.e. gas discharge occurs. The present work is dedicated to modeling of the discharge processes, arising in liquid medium and control by a high-voltage controllable switch-thyratron.

The usage of high voltage discharge in liquid finds many technological applications. Control of the moment when the discharge occurs in systems with capacitive energy storage, suggests the usage of a high voltage controllable switch, most often trigatron or thyratron, i.e. gas discharge occurs. The present work is dedicated to modeling of the discharge processes, arising in liquid medium and control by a high-voltage controllable switch-thyratron.

This paper aims to provide a brief overview of the principles underlying solar energy and its conversion processes. Specifically, we will examine the technologies that enable the capture and storage of solar energy, as well as the potential applications of this energy source in various settings. Additionally, we will investigate the historical evolution of solar energy, including its current status and prospects for future development. Finally, we will discuss the crucial role that solar light plays in driving the energy conversion process.

This paper aims to provide a brief overview of the principles underlying solar energy and its conversion processes. Specifically, we will examine the technologies that enable the capture and storage of solar energy, as well as the potential applications of this energy source in various settings. Additionally, we will investigate the historical evolution of solar energy, including its current status and prospects for future development. Finally, we will discuss the crucial role that solar light plays in driving the energy conversion process.

During the last years the scientific community pays more attention to climate change. There is a need for more comprehensive information on the climate in the past. The annual rings of wood plants are one of the most used natural archives of climate variability in high resolution (from one year to a season). Maximum Latewood Density (MXD) of coniferous tree species growing at high altitudes is closely related to temperature ranges during the summer. The measurement of MXD is expensive and time-consuming process, which can be performed only in a few laboratories worldwide. Therefore the scientists search other methods to measure indicators of late wood and temperature ranges, respectively. The reflection of blue light (blue channel of the image) from scanned samples (BI), taken with increment borer is one of the best indicators of potential density of the late wood to be tested in recent years. We compared the BI scanned images of three species – Norway spruce (Picea abies), Bosnian pine (Pinus heldreichii) and Austrian Pine (Pinus nigra). The spectrum of the blue reflection is obtained by scanning a sample of this species with a flatbed scanner at a high resolution (1200 dpi). Samples were taken with increment borer in accordance with dendrochronological approved methodology. Reliable data were obtained even in very narrow late wood (up to 0.001 mm). The resulting time series are compared with weather information. The results show that the method Blue Reflectance is suitable for establishing the climate fluctuations. Very important is the preliminary preparation of the samples, the content of lignin and resin materials in the annual rings, as well as the presence of a separate core.

During the last years the scientific community pays more attention to climate change. There is a need for more comprehensive information on the climate in the past. The annual rings of wood plants are one of the most used natural archives of climate variability in high resolution (from one year to a season). Maximum Latewood Density (MXD) of coniferous tree species growing at high altitudes is closely related to temperature ranges during the summer. The measurement of MXD is expensive and time-consuming process, which can be performed only in a few laboratories worldwide. Therefore the scientists search other methods to measure indicators of late wood and temperature ranges, respectively. The reflection of blue light (blue channel of the image) from scanned samples (BI), taken with increment borer is one of the best indicators of potential density of the late wood to be tested in recent years. We compared the BI scanned images of three species – Norway spruce (Picea abies), Bosnian pine (Pinus heldreichii) and Austrian Pine (Pinus nigra). The spectrum of the blue reflection is obtained by scanning a sample of this species with a flatbed scanner at a high resolution (1200 dpi). Samples were taken with increment borer in accordance with dendrochronological approved methodology. Reliable data were obtained even in very narrow late wood (up to 0.001 mm). The resulting time series are compared with weather information. The results show that the method Blue Reflectance is suitable for establishing the climate fluctuations. Very important is the preliminary preparation of the samples, the content of lignin and resin materials in the annual rings, as well as the presence of a separate core.

Oxidation of waste slag from copper production was studied in oxygen-nitrogen gaseous mixtures (21, 43, 63 and 100 vol.% of O2) under non-isothermal conditions using DTA-TG analysis at constant gas flow rate of 30 ml min-1 and varying heating rate. The results revealed that the mechanism of slag oxidation does not change with changing the oxygen content but intensification of the process occurs. Kinetic analysis was performed and a decrease in the values of the activation energy was observed with increasing of the oxygen partial pressure.

Oxidation of waste slag from copper production was studied in oxygen-nitrogen gaseous mixtures (21, 43, 63 and 100 vol.% of O2) under non-isothermal conditions using DTA-TG analysis at constant gas flow rate of 30 ml min-1 and varying heating rate. The results revealed that the mechanism of slag oxidation does not change with changing the oxygen content but intensification of the process occurs. Kinetic analysis was performed and a decrease in the values of the activation energy was observed with increasing of the oxygen partial pressure.