Search results for "Control."
showing 10 items of 13063 documents
Measurement and communication interfaces for distributed generation in smart grids
2013
The aim of this work is to perform a feasibility study on the measurement and communication strategies for the development of a new generation of interface devices for distributed generators and their integration on smart grids. The communication system can use one or more technologies, at the various levels, creating a low cost network infrastructure, in the framework of a SCADA (Supervisory Control and Data Acquisition) architecture. As regards the measurements, the attention is focused on the anti-islanding protection, based on a hybrid solution, which makes use of local measurements and communications with the grid, at both MV and LV level by employing the PLC technology. Some simulatio…
An interface protection system with power line communication for distributed generators remote control
2014
The aim of this work is to present a narrow band power line communication (NB-PLC) interface protection system (IPS) for distributed generators (DGs); it has been developed according to the current standard CEI 0-21 and the requirements for smart grid applications. For such applications, the new IPSs have to implement new intelligent functions such as remote monitoring and control of DGs and Energy Storage Systems (ESSs) inverters, not only in terms of disconnection but also of voltage regulation and power modulation by the utility control. The main feature of the developed IPS is the ability to interact with both the grid and the DG's and ESS's inverters. In fact, it can communicate with t…
Power calculation of multi-band signals: design and implementation on FPGA
2017
International audience
Ocena zagrożenia powodziowego w zlewni rzeki Biała Głuchołaska na terenie miasta Głuchołazy
2016
Note a margine dell’ordinanza della Corte costituzionale sul caso Taricco: l’effetto delle norme dei trattati istitutivi dell’UE sulla legge penale s…
2017
The present paper deals with the decision of the Italian Constitutional Court to refer a preliminary ruling to the European Court of Justice on the well-known case "Taricco". The latter, in 2015, stated that the Italian law on statute of limitations was inconsistent with the Treaty on the Functioning of the European Union, having regard to the obligation upon Member States, stemming from art. 325 TFUE. The Constitutional Court found that such an interpretation of the afore mentioned norm could bring to a violation of the rule of law in criminal matters, with particular regard to the prohibition of retroactive application of criminal law "in peius", intended as a fundamental principle of the…
Numerical and Experimental Study of a Novel Concept for Hydraulically Controlled Negative Loads
2016
This paper presents a numerical and experimental investigation of a novel concept that eliminates oscillations in hydraulic systems containing a counterbalance valve in series with a pressure compensated flow supply. The concept utilizes a secondary circuit where a low-pass filtered value of the load pressure is generated and fed back to the compensator of the flow supply valve. The novel concept has been implemented on a single boom actuated by a cylinder. A nonlinear model of the system has been developed and an experimental verification shows good correspondence between the model and the real system. The model is used for a parameter study on the novel concept. From the study it is found…
La protezione dei dati personali nel rapporto di lavoro dopo il codice della privacy
2005
il saggio analizza con taglio critico gli aspetti problematici più recenti della disciplina del trattamento dei dati personali. L'analisi è compiuta con particolare attenzione al quadro normativo comunitario e offre spunti di riflessione sulle prospettive future in tema di privacy nel rapporto di lavoro.
Pressure support ventilation + sigh in acute hypoxemic respiratory failure patients: Study protocol for a pilot randomized controlled trial, the PROT…
2018
Background Adding cyclic short sustained inflations (sigh) to assisted ventilation yields optimizes lung recruitment, decreases heterogeneity and reduces inspiratory effort in patients with acute hypoxemic respiratory failure (AHRF). These findings suggest that adding sigh to pressure support ventilation (PSV) might decrease the risk of lung injury, shorten weaning and improve clinical outcomes. Thus, we conceived a pilot trial to test the feasibility of adding sigh to PSV (the PROTECTION study). Methods PROTECTION is an international randomized controlled trial that will be conducted in 23 intensive care units (ICUs). Patients with AHRF who have been intubated from 24 h to 7 days and under…
Un modelo de control en la dirección estratégica
2002
A partir de la evolución de las fases del proceso estratégico, presentamos un desarrollo de la fase de control como elemento clave de la Dirección Estratégica. Tras una revisión de la literatura, se propone un modelo integrado que permite aplicar el control estratégico en organizaciones complejas, o lo que es lo mismo, la posibilidad de afrontar con éxito estudios empíricos que nos permitan identificar las dificultades reales en la aplicación de los sistemas de control, más allà del “cuadro de mando” al uso en los trabajos de consultoría. En la última parte del trabajo, se toma como base la revisión realizada por Langfield-Smith porque nos permite completar el estudio con una propuesta de t…
Evaluation of Clutch Plate Integrity with Non-Destructive Methods
2009
Abstract Nondestructive evaluation (NDE) represents an important phase in the life cycle of a product to detect defects both in service and in production. NDE techniques most commonly used to detect surface defects are visual inspection and methods based on eddy current and ultrasound. Laser and non-contact sensors have been recently used to inspect ultrasonically without contact. Components with complex geometry are usually inspected combining several NDE techniques, or simply visually where analysis and evaluation of results are performed by an operator based on specific parameters of acceptance. This last method is currently used to inspect the clutch plates since their complex geometry,…