ACOUSTIC CHARACTERIZATION OF A CAVITATION TUNNEL: MODAL BEHAVIOUR AT LOW FREQUENCIES

Scaled models are implemented to study the radiated noise from the ships' propellers. Typically, acoustic measurements are performed inside a cavitation tunnel using those scaled models of the propeller. This work aims to present a modal acoustic characterization of the cavitation tunnel of the DITEN department of the University of Genoa in the low-frequency zone (i.e., below 1 kHz). A three-dimensional numerical model was used to simulate the tunnel, helping to understand the enclosure's mod...

Integrating Ontologies and Cognitive Conversational Agents in On2Conv

Multiagent systems have been successfully used in many domains. Being social, they are expected to communicate with human users in natural language. Nevertheless, the natural interaction between agents and humans is still challenging. Chatbot technologies are a key enabler to boost the communication between humans and software agents, but few technical solutions exist that make the agents’ reasoning capabilities easily accessible by a human user via a chatbot and, on the other hand, the chatb...

Managing the co-occurrence of natural hazards and pandemics with a new parallel phases DRM model

Simplified Conditions for the Evaluation of Droop-Controlled Microgrids Stability

The control logic of a Microgrid (MG) represents one of the most important topic in power system engineering research. The most common and well-known control logic is represented by the droop one, that allows each MG source to share the power request and to participate to the frequency and voltage controls. In order to reach this goal, the stability of this control logic is fundamental and it is important to understand if a determined working point can be reached. In this paper a new stabilit...