Wood pyrolisys using aspen plus simulation and industrially applicable model

Over the past decades, a great deal of experimental work has been carried out on the development of pyrolysis processes for wood and waste materials. Pyrolysis is an important phenomenon in thermal treatment of wood, therefore, the successful modelling of pyrolysis to predict the rate of volatile evolution is also of great importance. Pyrolysis experiments of waste spruce sawdust were carried out. During the experiment, gaseous products were analysed to determine a change in the gas composition with increasing temperature. Furthermore, the model of pyrolysis was created using Aspen Plus software. Aspects of pyrolysis are discussed with a description of how various temperatures affect the overall reaction rate and the yield of volatile components. The pyrolysis Aspen plus model was compared with the experimental data. It was discovered that the Aspen Plus model, being used by several authors, is not good enough for pyrolysis process description, but it can be used for gasification modelling

Comparative Study of Homotopy Analysis and Renormalization Group Methods on Rayleigh and Van der Pol Equations

A comparative study of the Homotopy Analysis method and an improved Renormalization Group method is presented in the context of the Rayleigh and the Van der Pol equations. Efficient approximate formulae as functions of the nonlinearity parameter $\varepsilon$ for the amplitudes $a(\varepsilon)$ of the limit cycles for both these oscillators are derived. The improvement in the Renormalization group analysis is achieved by invoking the idea of nonlinear time that should have significance in a nonlinear system. Good approximate plots of limit cycles of the concerned oscillators are also presented within this framework.Comment: 25 pages, 7 figures. Revised and upgraded: Differ Equ Dyn Syst, (26 July, 2015

Technological Capability as a Determinant of FDI Inflows: Evidence from Developing Asia & India

This paper contributes to the empirical literature on determinants of FDI by addressing the question: Why do some developing countries from Asia continue to receive more FDI, while others from the region have fallen behind? It finds R&D-based innovative capacities, and the ability to apply such capacities through modern IT-based techniques, as the two key determinants explaining FDI inflows to developing Asian economies. These traits are found significant for inward FDI in India too with more technology intensive sectors receiving greater FDI. The findings of the paper suggest that in the absence of strong technological foundations and well-developed communications infrastructure, liberal policies alone are not enough for drawing FDI, once initial advantages, like cheap labour, fizzle out. For developing countries like India, strong thrust on R&D and innovative skills is needed for attracting FDI in technology-intensive exports. Therefore, policy actions would have to go further than a broad-based opening up of sectors to FDI, and increasing the limit of such investment in these sectors, for sustained inflows of FDI.FDI inflows, technology and technological capabilities, locational advantages, IT-based communication facilities

Technological Capability as a Determinant of FDI Inflows - Evidence from Developing Asia & India

During 2006-07, FDI inflows into India were more than double than those in 2005-06. Indeed, during April-January 2006-07, inward FDI into India at US$16.4 billion, was far higher than the annual average inflow of US$2-3 billion during the late 1990s. In recent years, India has also emerged as one of the leading FDI destinations in Asia. On the whole, the pattern of FDI inflows to developing Asia itself has changed significantly over the years. Some leading Southeast Asian economies (for example, Malaysia, Indonesia, Thailand and Philippines) no longer attract as much FDI as they used to in the past. Thisis in sharp contrast to some East and Southeast Asian economies that continue to draw large FDI (for example, China, Hong Kong and Singapore). In the above context, this paper attempts to explain the country-wise variations in the pattern of FDI flows to developing Asian economies by empirically identifying location specific features influencing such flows. The paper argues that some countries in the region, which have developed long term sources of comparative advantages in the form of superior technological capabilities and supporting infrastructure have consistently attracted greater volumes of export-oriented FDI. These attributes are also crucial for explaining the steady improvement in FDI flows to India. The paper finds that with production processes becoming increasingly complex and technology-intensive, developing countries like India, must devote greater attention to the development of R&D and frontier technologies, failing which, they might lose out in the race for FDI.FDI inflows, technology and technological capabilities, locational advantages, IT-based communication facilities