An analysis is performed to study the unsteady flow past an exponentially accelerated infinite vertical plate with variable temperature and uniform mass diffusion, in the presence of a homogeneous chemical reaction of first-order. The plate temperature is raised linearly with time and the concentration level near the plate is raised uniformly. The dimensionless governing equations are solved us...

non-experimentally, and (3) a set of programs for applying diverse types of evidence to (dis)confirm hypotheses. My scientific contribution is to describe and interpret the design of a system that forms plausible explanatory hypotheses about dynamic processes in science and that proposes unseen entities in a manner justified by simplicity. The MECHEM system has been applied to systematically de...

Chemical Reaction Optimization (CRO) is a recently establishedmetaheuristics for optimization, inspired by the nature of chemical reactions. A chemical reaction is a natural process of transforming the unstable substances to the stable ones. In microscopic view, a chemical reaction starts with some unstable molecules with excessive energy. Themolecules interact with each other through a sequenc...

In living cells, chemical reactions form a complex network. Complicated dynamics arising from such networks are the origins of biological functions. We propose a novel mathematical method to analyze bifurcation behaviors of a reaction system from the network structure alone. The whole network is decomposed into subnetworks based on “buffering structures”. For each subnetwork, the bifurcation co...

We study the effects of fast spatial movement of molecules on the dynamics of chemical species in a spatial heterogeneous chemical reaction network. The reaction networks we consider are either singleor multiscale. When the dynamics is on a single-scale, fast spatial movement has the single effect of averaging the dynamics over the distribution of all the species. However, when the dynamics is ...

In a chemical thermodynamics course many students have difficulty understanding the following equation o DG = RT ln K (1) p Even gifted students find it difficult to understand the delta function and the dimensions of K . p The ambiguity of the delta symbol in chemical thermodynamics is the major contributing factor to this lack of understanding. The IUPAC Commission on Physicochemical Symbols ...

To what extent do the characteristic features of a chemical reaction network reflect its purpose and function? In general, one argues that correlations between specific features and specific functions are the key to understanding a complex structure. However, specific features may sometimes be neutral and uncorrelated with any system-specific purpose, function or causal chain. Such neutral feat...