Lack of sufficient distribution network capability is seen in this paper as a limiting factor of wind power plant (WPP) installation. The problem is viewed from time domain responses of the WPP to wind speed changes. Being disturbed by a variable wind speed, the WPP injects variable active and reactive power into the distribution network exposing nearby consumers to excessive voltage changes. The WPP connection is analyzed with respect to line thermal limits, bus voltage fluctuations and network power loss. Potential electrical energy production of a real WPP installation site is related to surrounding distribution network capability. Recognized discrepancy pointed out to a necessity of application of further countermeasures should this installation site be made viable for full utilization.Index Terms -distribution network capability, thermal loading, voltage fluctuation, power loss, wind power plant (WPP)
<p>Riparian zone forests are a special type of agro-forestry systems. As buffer zones protect stream systems against stress factors. These ecosystems are diverse so ecologically valuable, on the other hand, they are valuable (because of high productivity) from an economic viewpoint as well.</p>
<p>Riparian forests are very vulnerable because they strongly depend on surplus water (shallow groundwater or seasonally flooded condition). Long drought periods caused by changing climate induce lowering of the water table and shortening flooded periods. With reasonably designed water supply systems, these negative processes can be stopped, and valuable ecosystems can be preserved.</p>
<p>The effect of an artificial structures (new lakes and bottom thresholds) induced water supply was evaluated in Kasz&#243; Forest (Somogy county, Hungary). Eco-Hydrological monitoring (groundwater and phenological) was conducted on 14 regular (under the effect of water supply interventions) and 4 control plots in different forest ecosystems. The impact of water supply interventions was interpreted with spatio-temporal groundwater level difference analysis and found that surplus water had a positive effect on the riparian zone water table (40-50 cm rise in the neighbourhood of new lakes) and vegetation.</p>
<p>A complex field monitoring (hydro-meteorological and phenological measurements) was conducted on three representative locations. 1-D Hydrus model was successfully calibrated for an alder and two common oak forest plots. Diurnal signal of groundwater levels was used for ET estimation in the model. Model results showed that groundwater uptake of forest vegetation was significantly increased (30%) regarding water supply interventions.</p>
<p>Acknowledgements: The research was supported by EFOP-3.6.2-16-2017-00018 in University of Sopron project.</p>
<p>Keywords: riparian forest, water supply, groundwater monitoring, 1-D Hydrus model</p>
Vizsgálatunk az Eötvös Loránd Tudományegyetem Pedagógiai és Pszichológiai Kara Mo-TeL projektjének kutatási eredményeihez kapcsolódik. A tanárok folyamatos szakmai fejlődésére irányuló MoTeL projektet az Országos Tudományos Kutatási Alap (OTKA) támogatja. Tanulmányunk a pedagógusok tanulását meghatározó rendszerkörnyezetet vizsgáló elemzési keretrendszert mutatja be. Kutatásunk célkitűzése ugy anis a pedagógusok szakmai fejlődésével és tanulásával kapcsolatos célok, elvárások, a támogató rendszer és a szakmai fejlődéshez kapcsolódó ellenőrző mechanizmusok feltárása. Jelen tanulmányban a képzési és kimeneti követelmények (KKK), az önértékelési kézikönyvek és a karrierfejlesztés útmutatóinak dokumentumelemzését és annak megállapításait vázoljuk. Elsősorban analitikai keretrendszerünket, munkaorientált kutatási kérdéseinket és a kutatási szempontokat világítjuk meg. Négy kulcsfontosságú elemzési dimenzió – célok, tanulás, támogatás és kontroll-funkciók – mentén vizsgáljuk az egyes központi szabályozó dokumentumoknak a szakmai fejlődésre irányuló befolyását, a szabályozás területeit, eszközeit és mértékét.
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