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181.
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Changing behaviours and attitudes towards more sustainable individual energy consumption is a difficult topic to address. After identifying the most recurrent factors influencing the bad energy consumption, society's environmental short-sightedness, a lack of individual responsibility and a tendency to put responsibility upon firms, institutions, and governments, the authors evaluated the effect that business practices can have on individual behaviour. By qualifying as highly credible sources of information, positioning themselves as examples to follow, and providing its employees with the necessary smart and innovative technology, business communities can have a major impact on changing individual behaviours towards more sustainable energy consumption. 相似文献
184.
185.
Gallardo-Alvarado Jaime García-Murillo Mario A. Islam Md. Nazrul Abedinnasab Mohammad H. 《Journal of Mechanical Science and Technology》2016,30(5):2303-2309
Journal of Mechanical Science and Technology - This work reports on the position, velocity and acceleration analyses of a four-degrees-of-freedom parallel manipulator, 4-DoF-PM for brevity, which... 相似文献
186.
Training has been identified as an effective tool in the development of human resources, especially in the current context of change. This work aims to analyse the realisation and demand on training courses in the Rioja wine sector in Spain. A representative sample of companies in the sector was interviewed using a questionnaire. Two types of analysis were conducted: univariate and a factorial analysis of variance. These analyses allow using a hypothesis test in which three independent variables are controlled – zone, ownership, and winery size. The results show that the realisation and demand for training are focused on topics related to wine production, and not on marketing. No significant differences were found regarding the realisation and demand for training and the independent variables. 相似文献
187.
188.
Pedrini Matteo Langella Valentina Battaglia Mario Alberto Zaratin Paola 《Scientometrics》2018,114(3):1227-1250
Scientometrics - In recent year, a growing attention is dedicated to the assessment of research’s social impact. While prior research has often dealt with results of research, the last decade... 相似文献
189.
Giuseppe Ragosta Mario Abbate Pellegrino Musto Gennaro Scarinzi 《Journal of Materials Science》2012,47(6):2637-2647
This article examines the effects of structural changes and thermal aging treatments on the relaxation processes and mechanical
properties of three polyimides differing for their molecular structure i.e. PMDA-ODA, 6FDA-ODA, and 6FDA-6FpDA. These polyimides
were obtained by thermal imidization of their polyamic acid precursors, which were synthesized from the respective dianhydrides
[pyromellitic anhydride (PMDA), hexahydrofluoroisopropylidene diphthalic anhydride (6FDA)], and diamines [4,4′-diaminodiphenyl
ether (ODA), 4,4′-(hexafluoroisopropylidene) dianiline (6FpDA)]. After the curing process, the polyimides were thermally aged
at a fixed temperature for various times Dynamic mechanical measurements performed in a multi-frequency mode, were used to
determine the glass-rubber and sub-glass transitions, as well as the activation energy of the β transition. It was found that
the T
g decreased in the order PMDA-ODA > 6FDA-6FpDA > 6FDA-ODA as a result of an increased chain rigidity and molecular packing
induced by charge transfer interactions during the thermal imidization process. The β sub-glass transition showed two relaxation
processes identified as β′ and β′′. The β′ process was attributed to the local motion of the diamine constituents while the
β′′ process was caused by the local motion of the dianhydride moiety. The cooperativity of these molecular motions was also
assessed via the Starkweather method. The thermal aging enhanced the state of aggregation of polyimide chains and thus the
T
g and the sub-glass transition properties. This effect was particularly marked for the PMDA-ODA polyimide. Also the mechanical
properties were significantly affected by chemical structure and aging treatments. For non-aged samples the more influenced
parameter was the elongation at break, which decreased in the order PMDA-ODA > 6FDA-ODA > 6FDA-6FpDA. The aging enhanced the
elastic modulus and the tensile strength and reduced the elongation at break. 相似文献
190.
Isaac Pinyol Jordi Sabater-Mir Pilar Dellunde Mario Paolucci 《Autonomous Agents and Multi-Agent Systems》2012,24(1):175-216
Computational trust and reputation models have been recognized as one of the key technologies required to design and implement
agent systems. These models manage and aggregate the information needed by agents to efficiently perform partner selection
in uncertain situations. For simple applications, a game theoretical approach similar to that used in most models can suffice.
However, if we want to undertake problems found in socially complex virtual societies, we need more sophisticated trust and
reputation systems. In this context, reputation-based decisions that agents make take on special relevance and can be as important
as the reputation model itself. In this paper, we propose a possible integration of a cognitive reputation model, Repage,
into a cognitive BDI agent. First, we specify a belief logic capable to capture the semantics of Repage information, which
encodes probabilities. This logic is defined by means of a two first-order languages hierarchy, allowing the specification
of axioms as first-order theories. The belief logic integrates the information coming from Repage in terms if image and reputation,
and combines them, defining a typology of agents depending of such combination. We use this logic to build a complete graded
BDI model specified as a multi-context system where beliefs, desires, intentions and plans interact among each other to perform
a BDI reasoning. We conclude the paper with an example and a related work section that compares our approach with current
state-of-the-art models. 相似文献