Search results for "EXCHANGE"
showing 10 items of 2035 documents
"Thermal penalty factors" accounting for site topological characteristics in pinch design of Heat Exchanger Networks
2010
Pinch analysis allows to determine targets and solutions for minimum energy requirements in process plants, basing on innovative tools like composite curves and table problem formulation, which ultimately allow generating an optimized heat exchanger network design. On another hand, this technique does not account directly for a number of factors which could play a primary role for the practical feasibility of the network. What if, for instance, once identified an optimal lay-out, we realize that some matches are hardly feasible in practice? Could we adapt the conventional pinch approach to keep into account site topological features since the preliminary design phase? In this paper the auth…
Le Currency board : les contraintes de financement et d'ajustement de la convertibilité intégrale
2000
The paper scrutinizes the consequences of the adoption of a currency board arrangement (CBA) by some emerging economies during the 1990s. Considering the justifications o f this choice and the different setting-up contexts, it focuses on the implications of a CBA on the financial system and the real economy. A high degree of liquidity of the banking system is required in the absence of a lender-of-last-resort, and the automatic money supply process strictly disciplines the fiscal policy. Monetary stability is restored; but in most o f these economies where capital markets are underdeveloped, CBA's rules make the domestic credit supply dependent on the ability o f the economy to maintain ove…
The Web Participatory Environment: a New Genre in Health Exchange
2014
The Internet has provided new and expanded means of communication, incorporating all forms of discourse and registers, including that of medical discussion. Certain sites, in fact, specialise in healthcare and provide information, offering direct access to counsellors (medical professionals qualified to provide advice) and forums in which the role of participants is that of potential nonspecialists who share opinions, gather information on healthrelated issues and ambiguous medical meanings. The benefits of a healthrelated online forum lie in its ability to quickly and conveniently connect people to both important information and to other people with knowledge regarding a specific health…
A Power Law Behavior in the Incentivized Italian Photovoltaic Market
2018
The Italian photovoltaic (PV) marketis analyzed by using the data contained in the database that describes all PV Plants installed in Italy under the incentive program called “2nd Conto Energia”. It is shown that the cumulative probability distribution of the size of the installed PV plants has a broken power tail. An approach to partially quantify the effect of the economic, juridical and technical rules is introduced in order to show how the regulatory body influences the power tail of the cumulative probability curve.
A study on the assessment of the production costs curves in micro-grids
2013
In micro-grids, due to their small scale, there is commonly only one power supplier. A competitive wholesale market hardly exists, so the question about how to consider market issues for small producers within micro-grids arises. On the other hand, the specific features of micro-grids where load and generated power hardly find a balance, require that customers take part to regulation issues, also using demand-response (DR) programs. In this paper, price responsive (PR) policies and their programs are discussed to answer this question. A case study of a micro-grid with one micro-turbine and two photovoltaic (PV) generators is analyzed to assess the overall production cost in order to build a…
Beyond Understanding : How Proverbs Violate Grice’s Cooperative Principle
2014
Redox reaction between amino‐(3,4‐dihydroxyphenyl)methyl phosphonic acid and dopaquinone is responsible for the apparent inhibitory effect on tyrosin…
2002
Amino‐(3,4‐dihydroxyphenyl)methyl phosphonic acid, the phosphonic analog of 3,4‐dihydroxyphenylglycine, had been previously reported as a potent inhibitor of tyrosinase. The mechanism of the apparent enzyme inhibition by this compound has now been established. Amino‐(3,4‐dihydroxyphenyl)methyl phosphonic acid turned out to be a substrate and was oxidized to o‐quinone, which evolved to a final product identified as 3,4‐dihydroxybenzaldehyde, the same as for 3,4‐dihydroxyphenylglycine. Monohydroxylated compounds (amino‐(3‐hydroxyphenyl)methyl phosphonic acid and amino‐(4‐hydroxyphenyl)methyl phosphonic acid) were not oxidized, neither was 4‐hydroxy‐l‐phenylglycine. However, the relatively hig…
Tiam1 as a Signaling Mediator of Nerve Growth Factor-Dependent Neurite Outgrowth
2010
Nerve Growth Factor (NGF)-induced neuronal differentiation requires the activation of members of the Rho family of small GTPases. However, the molecular mechanisms through which NGF regulates cytoskeletal changes and neurite outgrowth are not totally understood. In this work, we identify the Rac1-specific guanine exchange factor (GEF) Tiam1 as a novel mediator of NGF/TrkA-dependent neurite elongation. In particular, we report that knockdown of Tiam1 causes a significant reduction in Rac1 activity and neurite outgrowth induced by NGF. Physical interaction between Tiam1 and active Ras (Ras- GTP), but not tyrosine phosphorylation of Tiam1, plays a central role in Rac1 activation by NGF. In add…
Cost that is Directly Incurred as a Result of Operating the Train Service on the 1520 mm Rail with Primarily Freight Transportation
2016
AbstractUnder the Directive 2012/34/EU (21 November 2012) “the charges for … [rail] infrastructure … shall be set at the cost that is directly incurred as a result of operating the train service”. This charging rule is new for Baltic States’ railways, where due to the favorable geographic position a full cost application without detalization was possible. Although, a big number of relevant studies on the issue was made in EU, all of them covered only 1435mm railways with primarily passenger transportation. This study has been made in order to understand the impact of train operating on 1520mm rail infrastructure with primarily freight transportation.A gradual model of infrastructure chargin…
La vita degli oggetti: il ruolo della cosa donata in Seneca
2014
This paper highlights the very active role of objects in the practice of gift exchange, focusing on the representation of munus and donum which emerges from Seneca's De beneficiis and Medea's tragedy. Examining the function of the gift and its cultural patterns permits a critical comparison with anthropological studies concerning the theory of the spirit of the gift (hau) formulated by Marcel Mauss and the theme of inalienable gifts, elaborated by Annette Weiner. Such an analysis emphasizes the objects' propensity to stimulate the memory of the receiver and to arouse his gratitude. Moreover, the gift, imbued with the giver's identity, is suitable to replace him not only in gift-giving relat…