scholarly journals Applied Ecophysiology: An Integrative Form to Know How Culture Environment Modulates the Performance of Aquatic Species from an Energetic Point of View

Author(s):  
Carlos Rosas ◽  
Cristina Pascual ◽  
Maite Mascaro ◽  
Paulina Gebauer ◽  
Ana Farias ◽  
...  
2021 ◽  
Vol 11 (9) ◽  
pp. 4045
Author(s):  
Amilcar Duque-Prata ◽  
Carlos Serpa ◽  
Pedro J. S. B. Caridade

The photodegradation mechanism of 1-phenyl-4-allyl-tetrazol-5-one has been studied using (time-dependent) density functional theory with the M06-HF, B3LYP, and PBE0 functionals and the VDZ basis set. All calculations have been carried out using the polarizable continuum model to simulate the solvent effects of methanol. The reaction pathway evolution on the triplet state has been characterised to validate a previously postulated experimental-based mechanism. The transition states and minimums have been initially located by local scanning in partial constrained optimisation, followed by a fully relaxed search procedure. The UV spectra has shown to be better described with PBE0 functional when compared with the experimental results, having the M06-HF a shift of 40 nm. From the energetic point of view, the postulated mechanism has been validated in this work showing a concerted photoextrusion of the N2 molecule. The intramolecular proton transfer occurs at a later stage of the mechanism after cyclization of the allyl group on a triplet biradical intermediate. The photoproduct observed experimentally, a pyrimidinone, has been characterised. The infrared spectroscopic reaction profile has also been proposed.


Slovene ◽  
2017 ◽  
Vol 6 (1) ◽  
pp. 95-117 ◽  
Author(s):  
Barbara Sonnenhauser

For the linguistic expression of the concept of knowledge, the Slavic languages use verbs deriving from the Indo-European roots *ĝnō and *ṷei̭d. They differ in terms of the availability of both types of verbs in the contemporary standard languages and in terms of their semantic range. As will be shown in this paper, these differences are interesting not only from a language-specific lexicological point of view, but also in the context of the intersection of lexicon and grammar. Covering the domain of ‘knowing how,’ the *ĝnō-based verb in Slovene (znati) has been extending into the domain of possibility and, on this basis, developing into a modal verb. While this development is not surprising from a typological point of view, it is remarkable from a Slavic perspective, since this particular grammaticalisation path towards possibility is otherwise unknown to Slavic. This peculiar feature of Slovene, which most probably relates to its long-lasting and intensive contact with German, is illustrated in the present paper by comparing Slovene to Russian on the basis of three main questions: 1) the semantic range of vedeti / vedatʹ and znati / znatʹ, 2) the lexicalisation of ‘know how,’ and 3) the relation between knowledge, ability, and possibility. The focus is on contemporary Slovene and Russian, leaving a detailed diachronic investigation and the further embedding into a larger Slavic and areal perspective for future analyses.


2021 ◽  
Author(s):  
Maël Jeulin ◽  
Olivier Cahuc ◽  
Philippe Darnis ◽  
Raynald Laheurte

Abstract Most of the cutting models developed in the literature attest only to the presence of cutting forces in the balance of mechanical actions resulting from cutting. However, several studies have highlighted the presence of cutting moments during machining, and particularly 3D cutting in milling. The objective of this paper is to characterise phenomena associated with cutting moments by performing experimental mechanistic modelling in 3D cutting. For this purpose, several modelling factors will be investigated, such as the 3D cutting reference frame, the undeformed chip section, the cutting parameters, the cutting zone, etc. The predictive model of this study proves to be relatively efficient for an experimental model and allows a global prediction of cutting moments in milling. Furthermore, beyond the aspect of stress fields in the workpiece caused by cutting moments, this paper gives perspectives from an energetic point of view for which the share of moments in the energy balance could be substantial for monobloc tools.


2009 ◽  
pp. 160-175
Author(s):  
Piergiorgio Pizzuto

- The intent of this paper is to present the results and the proceedings of an interdisciplinary research about connections between training and sustainability in the field of eco-design applied in the traditional use of plant fibers. The research has begun three years ago and has taken the form of a pilot project entitled Design Zingaro - a participating experience of planning and training. Creations of Land Art and Design with plant materials. It was realized in an inclusive process of dialogue, trough participation of many university students, artists, naturalists, forest staff and master weaver of traditional know-how of local craft. The educational activity was designed in partnership with all the stakeholders. The action of coordination has revealed vital for the involvement of both participants linked to University and external ones (artists, naturalists, forest staff and master weaver). From the methodological point of view, the process of training and planning has to be analyzed, through an ecological approach to epistemology and by a systemic view. The analysis has to be focused on relationships that enabled the conduct of the process. The main nodal relationships form the basis to build up a reticular and systemic model, able to describe the complexity of our process. There are many thematic issues covered by the research. They are all closely interlinked with each other: 1. the report of the observer with the process under study 2. arrangements and approaches of participing planning and training 3. institutional cooperation 4. the handing down of traditional know how of interlacement with plant fibers 5. fieldwork and residential workshops Abstracts 187 6. design production and artistic outcomes 7. the realization of a quality label for sustainable products 8. public events, promotion and diffusion 9. mass media and international forum.


CISM journal ◽  
1988 ◽  
Vol 42 (4) ◽  
pp. 321-330 ◽  
Author(s):  
P.J.G. Teunissen ◽  
E.H. Knickmeyer

Since almost all functional relations in our geodetic models are nonlinear, it is important, especially from a statistical inference point of view, to know how nonlinearity manifests itself at the various stages of an adjustment. In this paper particular attention is given to the effect of nonlinearity on the first two moments of least squares estimators. Expressions for the moments of least squares estimators of parameters, residuals and functions derived from parameters, are given. The measures of nonlinearity are discussed both from a statistical and differential geometric point of view. Finally, our results are applied to the 2D symmetric Helmert transformation with a rotational invariant covariance structure.


2016 ◽  
Vol 823 ◽  
pp. 75-78
Author(s):  
Doru Groza ◽  
Dan Mihai Dogariu

This study aims to validate the use of R744 for a resonant twin piston compressor for domestic applications. The vapor-compression refrigeration is the most commonly approached method for cooling household appliances such as refrigerators and air conditioning systems. The R134a refrigerant is one of the most suitable refrigerants from an energetic point of view. R744 (CO2) compressors are less efficient, but the fact that the R134a raises serious environmental issues pushes commercial trend towards the usage of R744 [1]-[3]. Use of R744 in household appliances is currently an open topic and no company has switched yet to the environmental-friendly alternative. In this paper the fill efficiency will be simulated in order to validate if a conventional compressor such as the opposite twin piston compressor is capable of filling with refrigerant when operating at a 50Hz frequency. Such a validation can enable further investigations regarding the replacement of R134a with R744.


2011 ◽  
Vol 46 (2) ◽  
pp. 247-265 ◽  
Author(s):  
Joëlle Morrissette

This research documented the know-how of five elementary-school teachers regarding formative assessment, working from their point of view on the question. Group interviews gave them the opportunity to negotiate their “ways of doing things,” by revisiting and elaborating upon assessment episodes that had been previously identified on classroom videotapes. An interactionist analysis served to describe the territory of formative assessment according to the range of their formal and informal “ways of doing things.”


Babel ◽  
2018 ◽  
Vol 64 (1) ◽  
pp. 33-62 ◽  
Author(s):  
Vlasta Kučiš ◽  
Simona Majhenič

Abstract Translation and interpreting are not only linguistic activities, but also to a large extent primarily activities of cultural transfer. Transcultural communication displays complexity, diversity and readiness for conflict in communicative interaction, so the interpreter/translator, as an intercultural mediator, is assigned a special communicative role in this regard. This article examines how interpreters at the European Parliament deal with controversial language rendering evaluative components of political statements as well as whether there is a rise in stress-related disfluencies in the interpretation of such statements and whether intonation (dis)similarities between the source text and the interpretations occur in the context of cultural and lexical know-how. Seven excerpts from four sessions of the European Parliament in the last six years and their interpretations into Croatian, Slovene, English, French and German were analysed from the point of view of stress and culture. Deviations in pitch and intensity levels of both the speaker and the interpreters were calculated and statistically compared in the light of differing cultural know-how. The intonation results for these interpreting examples showed that all the interpreters followed the speaker’s pitch deviations to a certain extent. Analysis of politically-controversial statements also revealed that more than 80% of the interpretations selected contained stress-related disfluencies and almost 70% contained some form of discrepancy with the source text at a lexical level. The interpretations therefore largely contained fewer negative evaluative components of controversial language than the speakers in the European Parliament.


Author(s):  
Pandeli Borodani ◽  
Davide Colombo ◽  
Marco Forestello ◽  
Patrizio Turco ◽  
Riccardo Morselli

The plant under control is the hydraulic circuit arranged by CNH in a prototype agriculture tractor of medium segment, where instead of the conventional main hydraulic pump, a new device electronically piloted, is installed. The main purpose is basically to obtain some advantages according to the energetic point of view, by means of an appropriate control structure, managing the electronic variable displacement pump. The frontier of the new systems requires the employment of the advanced control techniques, in order to assure the levels of precision, reliability, robustness demanded from systems. The control design methodology employed in the present case is based on robust H∞ optimization techniques, where robust stability properties are guaranteed in presence of unaccountable dynamics and other destabilizing factors. The effectiveness of the proposed control approach is tested on the demonstrative tractor realized from the CNH Agriculture at Modena plants, in all real conditions.


2019 ◽  
Vol 85 ◽  
pp. 07008 ◽  
Author(s):  
Gabriela Ionescu ◽  
Cora Bulmău

The present research proposes two scenarios for the biomass conversion into valuable products within the integrated management of bio-resources. The scenarios have been developed considering: the biomass availability, material and by-products characteristics and the comprehensive combination of the primary technologies used for the conversion of the biomass mixtures into energy. In scenario 1 the biomass waste valorisation is made via integrated pyrolysis and combustion treatment, while in scenario 2 the biomass conversion in done considering the integration of the pyrolysis, gasification and combustion treatments into the conversion chain. The results revealed that all analysed scenarios purposed are self-independent from the energetic point of view.


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