Search results for "pOR"

VAPOR-LIQUID EQUILIBRIUM CALCULATIONS USING THE TOPOLOGICAL TREATMENT OF MIXTURES.

1983

The Topological Treatment of mixtures is applied to several kinds of binary mixtures to obtain VLE diagrams. The excess Gibbs free energy, gE, is calculated as the product of a topological vector and an information vector. The pure compound topological description were obtained following the DARC system rules. A weighting function was introduced to obtain the topological description of a mixture. The information vector is calculated from experimental data. It is shown that for binary mixtures alcohol-alkane, the components of this vector varies linearly with the average number of carbon atoms of chemical compounds. This relationship allows prediction of the VLE diagram for any other system …

Remembering an Era: Roger Penrose’s Paper on “Gravitational Collapse: The Role of General Relativity”

2018

Back in the 1960s, Einstein’s theory of general relativity re-emerged as a field of important research activity. Much of the impetus behind this resurgence came from powerful new mathematical ideas that Roger Penrose and Stephen Hawking applied to prove general singularity theorems for global space-time structures. Their results stirred the imaginations of astrophysicists and gave relativistic cosmology an entirely new research agenda. A decade later, black holes and the big hang model were on the tongues of nearly everyone who followed recent trends in science. As popular expositions dealing with quasars, pulsars, and the geometry of black holes began to appear in magazines and textbooks, …

Electrical Transport and Confocal Raman Studies of Electrochemically Modified Individual Carbon Nanotubes

2003

Emmy Noether: a Portrait

2020

“I always went my own way in teaching and research,” Emmy Noether once wrote toward the end of her life.

From “Strategic Fit” to Synergy Evaluation in M&A Deals

2012

The aim of this paper is to grasp the processes underlying the genesis and assessment of synergies in M&A deals. We proceed to an in-depth scrutiny of the foundations of synergies using Porter’s model of the value chain. A discernment of the nature of synergies and the mode of their emergence is helpful to clarify to what extent and under which boundary conditions it is appropriate to apply the DCF or the real option techniques for evaluating each type of synergy. Combining both financial tools, the methodology suggested for evaluating the synergies is able to: evaluate projects of M&As, orient the selection of target firms and the definition of the premium of acquisition, and drive…

Applying a new synthetic environmental indicator to urban transportation scenario

2002

Through this work will be presented a suitably modified version of a simple model devoted to the evaluation of pollutant matters released in urban contexts by the transportation sector. The method, essentially referring to the pollutant emission factors provided within the European "COPERT III" approach, only requires the knowledge of data concerning the running car fleet on the analysed site. The methodology is here utilised for comparing environmental and energy effects of different transportation policies to be adopted in a given urban area. By imposing modal changes to the transportation demand and, consequently, by re-allocating people from cars to public means, the effects on the rele…

'REOFUT' as an Observation Tool for Tactical Analysis on Offensive Performance in Soccer: Mixed Method Perspective

2019

Performance analysis in complex sports like soccer requires the study of the influence of the interaction between both teams during the game on final performance. The mixed methods approach involves the collection, analysis, and interpretation of qualitative and quantitative data for the same purpose and within the framework of the same study. To build certain observation tools, mixed methods are necessary in order to take advantage of integration between qualitative and quantitative elements. The aim of this study was to develop a new no standard observation tool to analyze soccer offensive performance considering not only the observed team but also some aspects of the opponent behavior, a…

Portaalidosimetrian käyttö sädehoitokiihdyttimen laadunvarmistuksessa

2009

L'idéologie durable. Une analyse sémiotique du Rapport Brundtland

2017

Le rapport "Notre avenir à tous" (1989) exprime, en définissant le « développement durable », un souci d’harmonisation des rapports entre les nations qui était déjà présent dans la charte (1945) des nations unies prônant, de son côté, la paix internationale. Ce rapport marque pourtant un tournant stratégique: l’invitation à un mode de vie partagé passe cette fois par un « retour à la nature ». Il semble que la nature y acquière la valeur d’un impératif urgent, tout en faisant problème. En effet, en lisant le rapport, on s’aperçoit que cet appel à la nature est loin d’être univoque. Malgré ses apparences, la rien n’est plus instable que le concept de nature. L’analyse montre que le champ sém…

Estudio de validación de los parámetros dinámicos de respuesta a fluidos, variación de volumen sistólico (VVS) y variación de presión de pulso (VPP),…

2021

Introducción En cirugía de resección pulmonar, se recomienda la fluidoterapia restrictiva debido al alto riesgo de lesión pulmonar aguda postresección atribuida al uso liberal de fluidos. Sin embargo, esta terapia puede dar lugar a hipoperfusión vascular y por tanto aumento de la morbimortalidad. La fluidoterapia intraoperatoria debe ser individualizada para cada paciente, ajustando el aporte o restricción de fluidos a fin de optimizar el gasto cardíaco y evitar lesiones en órganos vitales. La fluidoterapia guiada por objetivos permite realizar esta individualización de fluidos mediante el análisis de los parámetros VVS y VPP. El objetivo principal de este estudio es la validación de VVS y …