Search results for "STAI"
showing 10 items of 5922 documents
A New Simple Function for Combustion and Cyclic Variation Modeling in Supercharged Spark Ignition Engines
2022
Research in the field of Internal Combustion (IC) engines focuses on the drastic reduction of both pollutant and greenhouse gas emissions. A promising alternative to gasoline and diesel fuel is represented by the use of gaseous fuels, above all green hydrogen but also Natural Gas (NG). In previous works, the authors investigated the performance, efficiency, and emissions of a supercharged Spark Ignition (SI) engine fueled with mixtures of gasoline and natural gas; a detailed research involving the combustion process of this kind of fuel mixture has been previously performed and a lot of experimental data have been collected. Combustion modeling is a fundamental tool in the design and optimi…
Food community networks as sustainable self-organized collective action: A case study of a Solidarity Purchasing Group
2014
The spread of Food Community Networks (FCNs) is mainly due to new and confirmed policies for consumption, testing new social paradigms aimed at promoting sustainable development in rural areas through the active reorganization of the agricultural and food industry. As a result, there is a set of rules deriving from complex relational structures competing to define self-organized collective action for sustainability. This paper analyses the structure of relations within FCNs. With this end in view, research on the experience of FCNs has been done, in particular of Solidarity Purchasing Groups (henceforth SPGs) in Sicily (Southern Italy). By applying Social Network Analysis, the article ident…
Perception of the Fair Social Distribution of Benefits and Costs of a Sports Event: An Analysis of the Mediating Effect between Perceived Impacts and…
2020
Residents&rsquo
Influencia de la ansiedad, ira y estructura de la personalidad en la explicación de la mala conducción.
2017
La accidentabilidad en vehículos a motor, a día de hoy, es una de las principales fuentes de muertes y lesiones. Por ello la prevención y el estudio de los factores que precipitan estos accidentes adquiere en estos años vital importancia. Entre estos destacan los estudios de personalidad que pretenden relacionar una estructura de personalidad con la asunción de conductas aberrantes en la conducción y vinculadas a una mayor siniestralidad. A partir de una muestra de 88 sujetos hemos realizado un estudio dividido en dos partes: En la primera hemos explorado utilizando metodología basada en correlaciones y un diseño descriptivo explorando las relaciones existentes entre factores intrapersonale…
Technical and economical comparison between NdFeB and hard ferrites linear electrical generators from sea waves
2015
In this paper the authors perform a technical-economic comparison of two different Tubular Permanent Magnet Linear Machines for sea waves generation by using finite elements analysis. The first configuration includes ferrite rings while the second configuration includes neodymium-iron-boron rings. In order to compare the two types in economic and technical terms, a detailed analysis of the main figures of merit of the two configurations has been carried out. In particular, significant data such as flux distribution, rated voltage and current, axial force, electric power, realization cost and maintenance cost have been compared.
Verbal and academic skills in children with type 1 diabetes
2011
Population Properties of Compact Objects from the Second LIGO-Virgo Gravitational-Wave Transient Catalog
2021
Abbott, R., et al. (LIGO and Virgo Collaboration)
Increasing the Astrophysical Reach of the Advanced Virgo Detector via the Application of Squeezed Vacuum States of Light
2019
Current interferometric gravitational-wave detectors are limited by quantum noise over a wide range of their measurement bandwidth. One method to overcome the quantum limit is the injection of squeezed vacuum states of light into the interferometer's dark port. Here, we report on the successful application of this quantum technology to improve the shot noise limited sensitivity of the Advanced Virgo gravitational-wave detector. A sensitivity enhancement of up to 3.2±0.1 dB beyond the shot noise limit is achieved. This nonclassical improvement corresponds to a 5%-8% increase of the binary neutron star horizon. The squeezing injection was fully automated and over the first 5 months of the thi…
Activation of Stainless Steel 316L Anode for Anion Exchange Membrane Water Electrolysis
2023
The increased emphasis on renewable energy has resulted in a surge of R&D efforts into hydrogen and battery research. The intensive electrochemical environment surrounding the anodic oxygen evolution reaction (OER) has plagued both the activity and stability of the catalytic layer, substrate and porous transport layer, ultimately affecting both these industries. Herein, we report the benefits of potential cycling (PC) a 316L stainless steel felt porous transport layer (PTL) for use in anion exchange membrane water electrolysis. The PC increased surface roughness and created a CrFe5Ni2-OxHy layer through the oxidation of iron as shown by SEM, EDS, XPS, XRD and Raman spectroscopy. Post-PC tes…
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and its Role in Conservation of Cacti and Other Succulent…
2007
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) contributes to nature conservation by regulating international trade in listed species by means of a permit system. Through this control system all parties assist in maintaining the listed rare and threatened species in the wild. CITES allows trade in wild specimens up to a level that is not detrimental for the survival of the species in the wild, that is, a use of nature commonly referred to as sustainable use. The basis of CITES are discussed with special emphasis on the Cactaceae and other succulent plants included in the Convention. The framework of regulation of plants in trade is outlined and t…