Search Results
(II) salt + H 3+ n PMo 12− n V n O 40 ” suggested first [ 2 ], heteropoly acids (HPA) are involved in the electron transfer from palladium reduced by the substrate to dioxygen, thus preventing precipitation of the metal. Deep reduction of supported
40 ·20H 2 O, H 4 SiW 12 O 40 ·24H 2 O, H 3 PMo 12 O 40 ·18H 2 O, Na 3 PW 12 O 40 ·18H 2 O and Ca 2 SiW 12 O 40 ·16H 2 O were purchased from Sinopharm Chemical Reagent Co., Ltd. Acenaphthene (97%) and anhydrous AlCl 3 were sublimated before used. All
completely substituted by tellurium and investigate their catalytic performance for the partial oxidation of isobutane. Experimental Catalyst preparation A series of H 3+x PMo 12−x V x O 40 (x = 0
Abstract
The purpose of the study is to examine the relationship between tourism development and economic growth in Greece, using the Autoregressive Distributed Lag (ARDL)-Bounds testing procedure. The present paper attempts to examine the relevance of the tourism led growth hypothesis according to the Kaldorian theory. The analysis was carried out for the period from 1963 to 2016 and involves the short-run as well as the log-run impact. As a proxy for the output of the tourism sector, its receipts are employed, while as an index for economic growth, the GDP is employed. The empirical results show that the economy of Greece can recover and return to the long-run equilibrium with a speed of adjustment 7.17% per year.
The purpose of this paper is the empirical testing of the relationship between economic growth and government spending and, at the same time, to determine the extent to which economic growth causes growth in government expenditures (Wagner’s law) or the other way around (Keynesian hypothesis). The econometric analysis, using data for the Greek economy covering the period 1958–2004 and based on recent developments in the theory of cointegrated processes, reveals a long-run equilibrium relationship between government expenditures and economic output. Furthermore, the analysis detects causal effects in both the short-run and long-run horizon running from government expenditures to the level of economic activity and vice versa.
Ferenc Jánossy was the most important Hungarian pioneer of surveys on long time series. In the 1960s he devised the famous theory of trendlines, which allowed him to forecast the great world economic recession of the 1970s a decade in advance. The best-known international authority on compiling historical time series is Angus Maddison, who prepared time series of the main demographic and macroeconomic indicators for 56 countries, from 1820 to the present day. Both scientists, whose survey method showed both a historical and a quantitative approach, reached the conclusion that human capital is the most important of production factors for securing long-term economic growth. The main purpose of this paper is to compare their results with the latest development, which is known as the “new growth theory”.
This paper empirically investigates the short and the long run impact of public debt on economic growth. We use annual data from both the central and the peripheral countries of the euro area (EA) for the 1961–2013 period and estimate a production function augmented with a debt stock term by applying the Autoregressive Distributed Lag (ARDL) bounds testing approach. Our results suggest different patterns across the EA countries and tend to support the view that public debt always has a negative impact on the long-run performance of EA member states, whilst its short-run effect may be positive depending on the country.
oxidation/acidic character of the molybdophosphoric acid (H 3 PMo 12 O 40 , PMo) catalysts by replacing Mo atoms with the corresponding V atoms. These heteropolycompounds are studied due to their importance as catalysts in catalytic oxidation reactions, for
The enthalpies of formation and evolved gas detection
H4SiW12O40·6H2O and its DMF and DMSO adducts
Abstract
The standard molar enthalpies of formation of H4SiW12O40·6H2O (I), H4SiW12O40·6DMF·H2O (II), H4SiW12O40·8DMSO·H2O (III) have been determined. Thermodynamic cycles were designed, and the heat of reactions in the thermodynamic cycles were measured calorimetrically. The infrared spectra were compared with those of the heteropoly anion α-H4SiW12O40 [1] and of the ligands DMF and DMSO. The evolved gas from the adducts was monitored by a quadrupole mass spectrometer at a heating rate of 16 deg·min−1.
Abstract
An improved method for the synthesis of two heteropolyacids of the same type: H5[AsMo10V2O40]·13H2O and H5[AsW10V2O40]·16H2O was elaborated. The studied compounds were characterized by elemental analysis, IR spectra and thermal behaviour over 20-800°C temperature range.
