Alves, A. M. Brites | onAcademic

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Now showing items 1 - 16 of 203730

Optimization of operation mode for the concentration by NF of clarified fermentation broths

Morao, A. I. Cavaco Alves, A. M. Brites Costa, M. C. Cardoso, J. P.

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Multi-ionic nanofiltration of highly concentrated salt mixtures in the seawater range RID B-7628-2011 RID B-4622-2012

Silva, V. Geraldes, V. Alves, A. M. Brites Palacio, L. Pradanos, P. Hernandez, A.

This work presents experimental observations on the permeation of multi-ionic solutions through a commercial DESAL-HL nanofiltration membrane. Two types of mixed-salt solutions have been analysed with a common co-ion (NaCl + Na(2)SO(4)) and with a common counter-ion ((NaCl + MgCl(2))). The NaCl concentrations have been similar to those of seawater with divalent ions with lower concentrations up to a tenth of that of the monovalent salt. In this study. SEDE-VCh model that includes the variation of the charge inside the membrane pores has been used to model the system and structural, electrical and dielectrical membrane parameters for such systems have been obtained. We show that accurate enough predictions can be achieved for the retention of monovalent ions in the presence of counter or co-ion divalent ions from the single NaCl salt results. While correct predictions for the retention of the divalent ions require membrane charges and dielectric constants dependent of the ionic composition of the solutions filtered. (C) 2011 Elsevier B.V. All rights reserved.

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An introduction to graphene plasmonics, by P. A. D. Gon?alves and N. M. R. Peres

J. Dobson Peter

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Herbertia Amabilis Deble & F. S. Alves (Iridaceae), a New Species from Brazil

Deble, Leonardo Paz Alves, Fabiano da Silva

A new species, Herbertia amabilis Deble & F. S. Alves (Iridaceae), is described and illustrated from Rio Grande do Sul State, Brazil. Herbertia Sweet is a predominately South American genus, now comprising 8 species with 7 of them occurring in southern Brazil. Herbertia amabilis is closely related with Herbertia lahue subsp. amoena (Griseb.) Goldblatt, but can be distinguished principally by robust habit, narrowly linear leaves, style arms recurved at the apex, and smaller obovate-clavate ovary. With just two known populations occurring in central Rio Grande do Sul State, with an extent of occurrence comprised in less than 100 km(2) and the populations size being smaller than 10 km(2) the new species is preliminary considered as critically endangered. The geographic distribution of the new species is presented as well as the key for the Brazilian species of Herbertia.

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The M/M/1+M queue with a utility-maximizing server

Zhan, Dongyuan Ward, Amy R.

We consider an M/M/1+M queue with a human server, who is influenced by incentives. Specifically, the server chooses his service rate by maximizing his utility function. Our objective is to guarantee the existence of a unique maximum. The complication is that most sensible utility functions depend on the server utilization, a non-simple expression. We derive a property of the utilization that guarantees quasiconcavity of any utility function that multiplies the server's concave (including linear) "value" of his service rate by the server utilization. (C) 2018 Elsevier B.V. All rights reserved.

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The M/M/1+M queue with a utility-maximizing server

Zhan Dongyuan Ward Amy R.

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Reshaping M&A scholarship – Broadening the boundaries of M&A research

Thanos, Ioannis C.; Angwin, Duncan; Bauer, Florian; Teerikangas, Satu

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A Tunnel Hamiltonian for Impure M–I–M Junctions

Kirpichenkov, V. Ya.; Kirpichenkova, N. V.; Lozin, O. I.; Pukhlova, A. A.

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Human integration following M&A: Synthesizing different M&A research streams

Dao, Mai Anh; Bauer, Florian

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M&A price pressure revisited

Kryzanowski, Lawrence Nie, Yulin (George)

We find strong evidence using two covariance decomposition methodologies that arbitrage short selling plays the relatively most important role in explaining the pure equity price effects for acquirers for M&A announcements during the 2009-2015 period. We find that the abnormal net purchase ratio of managerial insiders (i.e., managerial informedness), CSR composite ranking (i.e., interest alignment with various firm stakeholders) and the inside debt ratio (i.e., managerial conservatism) are the most important determinants of the acquirer price effects at M&A announcements both independently and through their effect on arbitrage activities at M&A announcements.

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Coarse Ricci Curvature as a Function on M x M

Ache, Antonio G. Warren, Micah W.

We use the framework used by Bakry and Emery in their work on logarithmic Sobolev inequalities to define a notion of coarse Ricci curvature on smooth metric measure spaces alternative to the notion proposed by Y. Ollivier. This function can be used to recover the Ricci tensor on smooth Riemannian manifolds by the formula for any curve .

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Packing a rectangle with m x (m + 1) rectangles

Ellard, Richard; MacHale, Des

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Brazil: A Biography. By Lilia M. Schwarcz and Heloisa M. Starling

Andrews, George Reid

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A dentist\"s life: I\"m not heavy, I\"m a dentist

Hancocks Stephen

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Packing a rectangle with m x (m + 1) rectangles

Ellard, Richard MacHale, Des

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M&M Cascade Polymerization Yields a Palette of Polyenynes

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Optimization of operation mode for the concentration by NF of clarified fermentation broths

Multi-ionic nanofiltration of highly concentrated salt mixtures in the seawater range RID B-7628-2011 RID B-4622-2012

An introduction to graphene plasmonics, by P. A. D. Gon?alves and N. M. R. Peres

Herbertia Amabilis Deble & F. S. Alves (Iridaceae), a New Species from Brazil

The M/M/1+M queue with a utility-maximizing server

The M/M/1+M queue with a utility-maximizing server

Reshaping M&A scholarship – Broadening the boundaries of M&A research

A Tunnel Hamiltonian for Impure M–I–M Junctions

Human integration following M&A: Synthesizing different M&A research streams

M&A price pressure revisited

Coarse Ricci Curvature as a Function on M x M

Packing a rectangle with m x (m + 1) rectangles

Brazil: A Biography. By Lilia M. Schwarcz and Heloisa M. Starling

A dentist\"s life: I\"m not heavy, I\"m a dentist

Packing a rectangle with m x (m + 1) rectangles

M&M Cascade Polymerization Yields a Palette of Polyenynes

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