COLLIMAZIONI frediani+gasserarchitettura

monografia dedicata ai progetti dello studio frediani+gasserarchitettura, con un lungo testo-intervista nel quale gli autori espongono le loro idee di architettura e ripercorrono l'evoluzione dei principali lavori realizzati; il testo contiene un regesto delle principali opere realizzate nel periodo 1995-2010

Lay-out di postazioni di lavoro alle casse di supermercati: valutazione di un intervento di riprogettazione

Il contributo descrive il redesign del prodotto "banco cassa" e le ricerche effettuate in laboratorio biomeccanico per avvalere le modifiche con criteri e dati scientific

An Investigation of Model-Based Design Framework for Aero-Engine Control Systems

Throughout the design of aero-engine control systems, modeling and simulation technologies have been widely used for supporting the conceptualization and evaluation. Due to the increasing complexity of such systems, the overall quality management and process optimization are becoming more important. This in particular brings the necessity of integrating various domain physical models that are traditionally based on different formalisms and isolated tools. In this paper, we present the initial concepts towards a model-based design framework for automated management of simulation services in the development of aero-engine control systems. We exploit EAST-ADL and some other existing state-of-the-art modeling technologies as the reference frameworks for a formal system description, with the content ranging from requirements, to design solutions and extra-functional constraints, and to verification and validation cases, etc. Given such a formal specification of system V&amp;V (Verification and Validation) cases, dedicated co-simulation services will be developed to provide the support for automated configuration and execution of simulation tools. For quality management, the co-simulation services themselves will be specified and managed by models in SysML.QC 20160202</p

Iron Doped Nickel Oxide Nanocrystals as Highly Efficient Electrocatalysts for Alkaline Water Splitting

Efficient electrochemical water splitting to hydrogen and oxygen is considered a promising technology to overcome our dependency on fossil fuels. Searching for novel catalytic materials for electrochemical oxygen generation is essential for improving the total efficiency of water splitting processes. We report the synthesis, structural characterization, and electrochemical performance in the oxygen evolution reaction of Fe-doped NiO nanocrystals. The facile solvothermal synthesis in <i>tert</i>-butanol leads to the formation of ultrasmall crystalline and highly dispersible Fe_<i>x</i>Ni_1–<i>x</i>O nanoparticles with dopant concentrations of up to 20%. The increase in Fe content is accompanied by a decrease in particle size, resulting in nonagglomerated nanocrystals of 1.5–3.8 nm in size. The Fe content and composition of the nanoparticles are determined by X-ray photoelectron spectroscopy and energy-dispersive X-ray spectroscopy measurements, while Mössbauer and extended X-ray absorption fine structure analyses reveal a substitutional incorporation of Fe(III) into the NiO rock salt structure. The excellent dispersibility of the nanoparticles in ethanol allows for the preparation of homogeneous <i>ca</i>. 8 nm thin films with a smooth surface on various substrates. The turnover frequencies (TOF) of these films could be precisely calculated using a quartz crystal microbalance. Fe_0.1Ni_0.9O was found to have the highest electrocatalytic water oxidation activity in basic media with a TOF of 1.9 s^–1 at the overpotential of 300 mV. The current density of 10 mA cm^–2 is reached at an overpotential of 297 mV with a Tafel slope of 37 mV dec^–1. The extremely high catalytic activity, facile preparation, and low cost of the single crystalline Fe_<i>x</i>Ni_1–<i>x</i>O nanoparticles make them very promising catalysts for the oxygen evolution reaction