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91.
In recent years, the growing attention to environmental challenges has shown that these issues are becoming of more and more interest to both research and industry. Companies are expected to ensure their products are fully traceable and more sustainable, which requires the involvement of all of the actors in the production network. According to this aim, this study proposes a structured approach that uses the traditional traceability concept as a means to identify the main information needed to assess environmental impacts along the whole supply chain (SC). The proposed approach is composed of four main steps: (i) SC modelling to identify all stakeholders and their inter-relations, (ii) data sharing to collect all relevant data, (iii) data elaboration to calculate performance at different levels of detail and (iv) result interpretation to optimise the SC. The distributed implementation of the approach at different SC steps represents a useful means to practically realise a sustainable SC management. A case study involving a leather shoe SC is used to demonstrate the effectiveness of the approach in identifying criticalities, supporting the selection of the most appropriate suppliers and correctly setting a management strategy towards the optimisation of internal and external traceability and environmental sustainability performances. 相似文献
92.
Giacomo Veneri Pamela Federighi Francesca Rosini Antonio Federico Alessandra Rufa 《Computers in human behavior》2010
We describe an interactive gaze-contingent display (GCD) applied to clinical applications; the system uses a simple texture hole to inhibit peripheral vision, to test and stress overt mechanisms of visual searching in normal subjects. The correct use of GCD in vision research is affected by tremor of the hole, due to system noise, nystagmus, eye blinking, calibration and subject reactivity. These issues compromise the execution of task. In order to obtain a stable GCD hole, we implemented a predictive gaze-contingent display (PGCD), fitting through dispersion of fixations and modulating a filter. The paper describes the PGCD and compare it with the common technique, providing evidence that humans fit exploration based on the characteristics of the computer system; in particular we found significant difference applying PGCD or a simple finite impulse response filter. We suggest that a correct human–computer interaction applied to neuropsychological context must be developed taking in consideration both technical point of view and human behavior. 相似文献
93.
Alessandra Capanna 《Nexus Network Journal》2001,3(1):19-26
Alessandra Capanna summarizes the life and work of Iannis Xenakis, who passed away on 4 February 2001.He was a musician, but
above all he was a theorist and pure researcher who used mathematical thought as a basis for of his compositions. Because
of this, his way of working more closely resembles that of a philosopher of science than that of an artist, whose instinctive
creations are sometimes controlled only by aesthetical aims. he was also an architect. In 1956 Le Corbusier entrusted his
sketches for the Philips Pavilion for the Brussels World’s Fair to Xenakis, who was charged to “translate them through mathematics”. 相似文献
94.
In this paper, we propose a new encoding technique that combines the different physicochemical properties of amino acids together with Needleman–Wunsch algorithm. The algorithm was tested in the recognition of T-cell epitopes. A series of SVM classifiers, where each SVM is trained using a different physicochemical property, combined with the “max rule” enables us to obtain an improvement over the state-of-the-art approaches. 相似文献
95.
96.
Lloyd-Richardson Elizabeth E.; Papandonatos George; Kazura Alessandra; Stanton Cassandra; Niaura Raymond 《Canadian Metallurgical Quarterly》2002,70(4):998
Researchers' understanding of the impact of sociocultural and psychological factors on the various stages of adolescent smoking update is limited. Using national data, the authors examined transitions across smoking stages among adolescents (N=20,747) as a function of interpersonal, familial, and peer domains. Peer smoking was particularly influential on differentiating regular smoking, whereas alcohol use was most influential on earlier smoking. Although significant, depression and delinquency were attenuated in the context of other variables. Higher school grade was more likely to differentiate regular smoking from earlier smoking stages, whereas African American ethnicity and connectedness to school and family were protective of smoking initiation. Results lend support for an interactional approach to adolescent smoking, with implications for stage-matched prevention and intervention applications. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
97.
Antonella De Leonardis Alessandra Aretini Gabriele Alfano Vincenzo Macciola Giancarlo Ranalli 《European Food Research and Technology》2008,226(4):653-659
In this research, a phenol extract of high hydroxytyrosol (OLPE) content was obtained from olive leaves (Olea europaea L.), and subsequently tested under different contexts. The method used to obtain the OLPE basically involved two steps: the
use of strongly-acid aqueous steam, generated from 10% HCl (v/v) at 100°C, to directly hydrolyse the native complex phenols
from integral olive leaves, and OLPE recovery by liquid–liquid extraction with ethyl acetate. Hydrolysis time was 1 h. Finally,
the dried extract was dissolved in distilled water. The OLPE total phenols were determined by Folin–Ciocalteu’s method and
by HPLC analysis. Hydroxytyrosol was about 92% of the total phenols present in OLPE, and the yield was about 0.2% on fresh
leaves. OLPE showed antioxidant effects on different food lipids and did not inhibit lactic acid bacteria growth; however,
it showed cytotoxicity on NIH/3T3 fibroblasts and human umbilical vein endothelial cells at concentrations higher than 0.32 mM
(as hydroxytyrosol). 相似文献
98.
A Procedure for Evaluating the Compatibility of Surface Water Resources with Environmental and Human Requirements 总被引:1,自引:0,他引:1
Marco Franchini Ernesto Ventaglio Alessandra Bonoli 《Water Resources Management》2011,25(14):3613-3634
This paper presents a novel and easy-to-use procedure for controlling and licensing water abstractions from a river based
on establishing a balance between surface water resources and environmental and human requirements. Unlike other approaches
relying on complex and detailed basin models, this is based simply on the use of the discharge duration curve to represent
the available water resources. In particular, the scheme of analysis presented here is composed of four steps: 1) subdivision
of a particular river reach into sub-reaches; 2) estimation of the availability of water along each sub-reach over a particular
period of time by means of duration curves; 3) estimation of the environmental requirements (minimum instream flow—MIF) and quantities necessary for civil, agricultural and industrial uses over the same period, and 4) establishing a water balance
model for each sub-reach, taking into consideration the effects produced by water resource use in the upstream sub-reaches.
In particular, this procedure consents (a) quantification of the duration when abstractions are possible along each sub-reach,
(b) quantification of the maximum abstraction needed to satisfy the volume requested (thereby enabling comparison with the
amount the users can actually obtain through their structures and/or pumps) and (c) identification of situations in which
users need to avail themselves of reservoirs for temporarily storing the water abstracted so that they do not exceed the availability
on non-abstraction days. The procedure was successfully applied to a basin located in Emilia-Romagna, the Enza River, along
which 9 sub-reaches were identified. 相似文献
99.
100.
Alessandra Giovagnoli Daniele Romano 《Quality and Reliability Engineering International》2008,24(4):401-416
The existing procedures for robust design, devised for physical experiments, may be too limiting when the system can be simulated by a computer model. In this paper we introduce a modification of the dual response surface modelling, which incorporates the option of stochastically simulating some of the noise factors when their probabilistic behaviour is known. Our method generalizes both the crossed and the combined array approaches and finds a natural application to integrated parameter and tolerance design. The method appears suitable for designing complex measurement systems and in this paper is applied to the design of a high‐precision optical profilometer. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献