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Modeling and simulation of planar SOFC to study the electrochemical properties
Jawad Hussain,Rashid Ali,Majid Niaz Akhtar,Mujtaba Hussain Jaffery,Imran Shakir,Rizwan Raza 한국물리학회 2020 Current Applied Physics Vol.20 No.5
In this paper, modeling and simulations are carried out using COMSOL Multiphysics. A three-dimensional model is developed for a planar intermediate temperature (IT) solid oxide fuel cell (SOFC). A parametric study has been carried out to analyze the performance of SOFC. Simulations reveal some promising features and enhanced performance of SOFC. It is shown that the maximum value of power (4–3.3) kW/m2 still remains higher with significant rise of temperature (600 °C–1000 °C), nearly 0.15 kW/m2 is the very small loss of power per 100 °C rise of temperature. Results have shown that the electrolytic current density is (6700–5500) A/m2 for peak value of power (4–3.3) kW/m2 with increase of temperature (600 °C–1000 °C). For model validation we have plotted a comparison of average current density.
Response of Stock Returns to Oil Price Shocks: Evidence from Oil Importing and Exporting Countries
Jamal Bouoiyour,Refk Selmi,Syed Jawad Hussain Shahzad,Muhammad Shahbaz 세종대학교 경제통합연구소 2017 Journal of Economic Integration Vol.32 No.4
This paper examines the entire dependence structure of the quantile of stock return and that of oil price shocks, thereby extending the Quantile Regression to a Quantile-on-Quantile Regression. Based on historical monthly data covering the period April 1994~ September 2015, it was shown that there is substantial heterogeneity in the stock returns and oil price relationship across oil importing countries and oil exporting countries. Specifically, we find that the stocks of oil exporters that possess large proven oil reserves, in particular, Venezuela, Russia, and Saudi Arabia are typically more responsive toward demand-side oil shocks than those of oil importers. The intensity and the extent of these responses differ depending on the different stock market conditions and the nuances of oil price movements. Accordingly, profitable speculation and arbitrage strategies can be built on the basis of our findings.
Uddin, Gazi Salah,Hernandez, Jose Areola,Shahzad, Syed Jawad Hussain,Yoon, Seong-Min Elsevier 2018 International Review of Financial Analysis Vol.56 No.-
<P><B>Abstract</B></P> <P>This study investigates the efficiency of conventional and Islamic stock markets and their diversification potential by using multifractal de-trended fluctuation analysis (MF-DFA), wavelet squared coherence (WTC) and wavelet Value-at-Risk (VaR). Evidence from regional and country-level markets indicates Islamic stocks are less efficient than conventional ones in the short term, however more efficient in the medium term. Conventional stocks in the UK, Japan, and emerging markets are more efficient than the Islamic ones in the long term, whereas those from the US and Europe are less efficient. The wavelet VaR shows that conventional stock markets are at least as risky as the Islamic ones.</P>
Trade liberalization and Foreign Direct Investment in Pakistan
( Muhammad Zakaria ),( Hasnain A. Naqvi ),( Bashir A. Fida ),( Syed Jawad Hussain ) 한양대학교 경제연구소 2014 JOURNAL OF ECONOMIC RESEARCH Vol.19 No.3
The paper studies the impact of trade liberalization on foreign direct investment (FDI) in Pakistan using quarterly data from 1972 to 2010. The findings suggest that there is a significant positive relation between trade liberalization and FDI. The results are robust under alternative trade liberalization measures and different model specifications. The results indicate that the factors that drive foreign investment have a differential impact on FDI flows to Pakistan. Specifically, human and physical capitals, capital return, infrastructure development, terms of trade and urbanization promote FDI in Pakistan. Foreign debt and inflation lead to deteriorating foreign investment in the country. Another important finding is that the effect of trade liberalization on FDI has been augmented after the inception of a flexible exchange rate system in Pakistan. However, this result is not robust to alternative equation specifications.