Search results for "compensator"
showing 10 items of 59 documents
Effects of progressive decrease of feeding frequency and re-feeding on production parameters, stomach capacity and muscle nutritional value in rainbo…
2020
Abstract Feeds and feeding constitute the major part of costs in intensive aquaculture. Any action to reduce feeding costs without negatively affecting fish production parameters and flesh quality would improve profitability of farming. Therefore, we studied the effects of feeding frequency on production parameters, stomach capacity and nutritional value of muscle in juvenile rainbow trout (Oncorhynchus mykiss) in an experiment with two stages. First, during the nine-week “starvation period” we fed rainbow trout (initial weight c. 40 g) with four different feeding protocols in an attempt to adapt the fish to a progressive decrease in the number of feeding days. During the second stage, a fo…
Voltage Profile Improvement for Soc Son's Low-Voltage Grid with High Penetration of PV Systems by Optimizing the Location of SVC Devices
2018
This paper presents a method that is applied to optimize the placement of Static VAR compensators in a real low-voltage grid in the Vietnamese territory. In this way, the voltage profile of the distribution grid turns to be improved. A heuristic method, the Binary Particle Swarm Optimization, is used to find a solution to this problem within the Matlab environment. A case study that considers a high penetration of rooftop PV systems in a branch of Soc Son distribution grid is implemented to show the efficiency of the optimization method for this specific application.
How Lead-Lag Correlations Affect the Intraday Pattern of Collective Stock Dynamics
2015
The degree of correlation among stock returns aects the possibility to diversify the risk of investment,
An Empirical Analysis of the Lead Lag Relationship Between CDS and Stock Market
2018
This paper complements the recent literature providing a thorough research of the lead lag relationship between stock and sovereign CDS markets using a rolling VAR framework. We find that the transmission channel between the credit and stock market exist. This phenomenon is time varying, it seems to be related with the economic cycle and in general, it’s more intense in US than in Europe.
Cascaded Multilevel Inverter-Based Asymmetric Static Synchronous Compensator of Reactive Power
2022
The topology of the static synchronous compensator of reactive power for a low-voltage three-phase utility grid capable of asymmetric reactive power compensation in grid phases has been proposed and analysed. It is implemented using separate, independent cascaded H-bridge multilevel inverters for each phase. Every inverter includes two H-bridge cascades. The first cascade operating at grid frequency is implemented using thyristors, and the second one—operating at high frequency is based on the high-speed MOSFET transistors. The investigation shows that the proposed compensator is able to compensate the reactive power in a low-voltage three-phase grid when phases are loaded by highly asymmet…
Effects of biomass, age and functional traits on regrowth of arable weeds after cutting
2008
Conference: 24th German Conference on Weed Biology and Weed ControlLocation: Stuttgart Hohenheim, GERMANYDate: MAR 04-06, 2008; International audience; In sown field margin stripes or pluriannual forage crops, arable weeds are exposed to high competition and regular mowing or hay cutting, to which they may react very differently. A greenhouse experiment permitted to understand some key factors shaping the ability of common arable weeds and forage crops to grow after such cuttings. Even without competition, cutting shoots at 5cm height reduced biomass production of all 10 species studied, but 6 annual broadleaf weeds were much more affected than 2 perennial forage crops (Dactylis, Medicago) …
Rischio ipertensivo nel monorene:rene multicistico (trattamento conservativo/nefrectomia) vs agenesia renale
2015
rene multi cistico;agenesia renale; ipertensione arteriosa; nefrectomia; ipertrofia compensatoria
Actitudes, percepciones y prácticas del profesorado sobre inclusión educativa en un centro de compensación educativa
2020
En esta tesis doctoral se analiza y reflexiona sobre la relación entre las percepciones, actitudes y las prácticas del profesorado sobre la inclusión educativa en un Centro de Acción Educativa Singular (CAES). Además, de conocer las características de la escuela inclusiva, en cuanto se ocupa de la educación compensatoria, así como analizar la normativa que regula este tipo de educación, y examinar la participación de la familia en el proceso educativo del alumnado. Los objetivos específicos que se pretenden son: 1. Conocer y analizar, a través de las percepciones del equipo directivo, las características de un centro de educación compensatoria relacionadas con la inclusión educativa. 2. Dil…
Effects of progressive decrease of feeding frequency and re-feeding on production parameters, stomach capacity and muscle nutritional value in rainbo…
2020
Feeds and feeding constitute the major part of costs in intensive aquaculture. Any action to reduce feeding costs without negatively affecting fish production parameters and flesh quality would improve profitability of farming. Therefore, we studied the effects of feeding frequency on production parameters, stomach capacity and nutritional value of muscle in juvenile rainbow trout (Oncorhynchus mykiss) in an experiment with two stages. First, during the nine-week “starvation period” we fed rainbow trout (initial weight c. 40 g) with four different feeding protocols in an attempt to adapt the fish to a progressive decrease in the number of feeding days. During the second stage, a four-week “…
Educación compensatoria : efectos recientes de un estudio clásico (High-Scope)
2014
Este artículo analiza dos estudios que prueban la tesis de que la educación de los desfavorecidos sociales en la edad temprana -3 y 4 años- merece la pena a corto y largo plazo. Para ello se analizan dos estudios preescolares complementarios –Perry y Curriculum -, de la Fundación High/Scope en los 60, evaluados en diversos momentos intermedios, el primero hasta alcanzar los 40 años y el segundo 23. Se describen los estudios y programas educativos, se analizan cuestiones metodológicas ligadas al seguimiento (muestra, validez, variables), se muestran los hallazgos, los tempranos específicamente escolares y otros de naturaleza distinta en la edad adulta. Finalmente se discute la modificabilida…