1,047 research outputs found
A New Equation of State for CCS Pipeline Transport: Calibration of Mixing Rules for Binary Mixtures of CO2 with N2, O2 and H2
One of the aspects currently holding back commercial scale deployment of
carbon capture and storage (CCS) is an accurate understanding of the
thermodynamic behaviour of carbon dioxide and relevant impurities during the
pipeline transport stage. In this article we develop a general framework for
deriving pressure-explicit EoS for impure CO2. This flexible framework
facilitates ongoing development of custom EoS in response to new data and
computational applications. We use our method to generalise a recent EoS for
pure CO2 [Demetriades et al. Proc IMechE Part E, 227 (2013) pp. 117] to binary
mixtures with N2, O2 and H2, obtaining model parameters by fitting to
experiments made under conditions relevant to CCS-pipeline transport. Our model
pertains to pressures up to 16MPa and temperatures between 273K and the
critical temperature of pure CO2. In this region, we achieve close agreement
with experimental data. When compared to the GERG EoS, our EoS has a comparable
level of agreement with CO2 -N2 VLE experiments and demonstrably superior
agreement with the O2 and H2 VLE data. Finally, we discuss future options to
improve the calibration of EoS and to deal with the sparsity of data for some
impurities
Is government ownership of banks really harmful to growth?
We show that previous results suggesting that government ownership of banks has a negative effect on economic growth are not robust to adding more 'fundamental' determinants of economic growth, such as institutions. We also present regression results from a more recent period (1995-2007) which suggest that, if anything, government ownership of banks has been associated with higher long run growth rates, even after controlling for institutions and other variables suggested by the growth literature. Drawing on the current global financial crisis, we provide a conceptual framework which explains why under certain circumstances government owned banks could have a greater effect on economic growth than privately-owned banks
Government ownership of banks, institutions and financial development
Using a suitably modified locational model of banking, we examine the influence of institutions, such as deposit contract enforcement, in explaining the share of previous termgovernmentnext term owned previous termbanksnext term in the banking system. We present cross-country evidence suggesting that institutional factors are relatively more important determinants of the share of state previous termbanksnext term than political or historical ones. We argue that rather than privatizing or subsidizing state previous termbanks governmentsnext term in developing countries should build institutions that foster the development of private banking
Determination of energy-loss factors for slow electrons in hot gases Final report, 28 Apr. 1966 - 15 Aug. 1969
Determination of energy loss factors for slow electrons in hot gase
An investigation of the influence of controlled turbulence on gaseous discharges Monthly progress report, 12 Mar. - 11 Apr. 1969
Experimental measurements of electrode voltage drops at various spacings in arc heated nitrogen plasma strea
Political Economy Origins of Financial Markets in Europe and Asia
We provide historical evidence from London, Amsterdam and Hong Kong which highlights the essential role played by governments in kick-starting financial development. In the cases of London and Amsterdam, the emergence of financial markets was a by-product of the rise of large trading monopolies. These monopolies, partly created to improve public finances, were responsible for major financial innovations and helped to strengthen investors' property rights. In Hong Kong, where the financial development model was bank-based, a large banking monopoly with close links to both the British and Chinese governments, set up to finance international trade, played a similar role. Ā© 2010 Elsevier Ltd.postprin
CHAP : Enabling efficient hardware-based multiple hash schemes for IP lookup
Building a high performance IP lookup engine remains a challenge due to increasingly stringent throughput requirements and the growing size of IP tables. An emerging approach for IP lookup is the use of set associative memory architecture, which is basically a hardware implementation of an open addressing hash table with the property that each row of the hash table can be searched in one memory cycle. While open addressing hash tables, in general, provide good average-case search performance, their memory utilization and worst-case performance can degrade quickly due to bucket overflows. This paper presents a new simple hash probing scheme called CHAP (Content-based HAsh Probing) that tackles the hash overflow problem. In CHAP, the probing is based on the content of the hash table, thus avoiding the classical side effects of probing. We show through experimenting with real IP tables how CHAP can effectively deal with the overflow. Ā© IFIP International Federation for Information Processing 2009
Effect of chemical structure on rocket fuel impulse
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1951.Includes bibliographical references (leaves 92-93).by S.T. Demetriades.M.S
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