De novo adipogenesis at the implanted site of a basement membrane extract (Matrigel) was induced through controlled release of basic fibroblast growth factor (bFGF). bFGF was incorporated intoâ€¦ (More)

One of the main obstacles in applying genetic algorithms (GAs) to complex problems has been the high computational cost due to their slow convergence rate. We encounter such a difficulty when weâ€¦ (More)

This paper is on the analysis of a single product, periodic review inventory model, where the distributions of demands vary with the state of the environment variable. The state of the environment isâ€¦ (More)

A whaler has some harpoons available for catching whales and finite number of periods to go. The whales are of two kinds, type 1 and type 2; type 1 needs to be hit by the given number of harpoons inâ€¦ (More)

The present paper deals with a continuous-time sequential allocation problem in the following context. Consider an m-unit parallel system in which each unit stochastically deteriorates with age. Whenâ€¦ (More)

A phenomenon of certainty effect is well known as a typical paradox in expected utility theory and is often observed in the laboratory gambling to test the axiomatic system of utility theory. Aâ€¦ (More)

This study used polymer devices implanted in rats to investigate the effect of prevascularization by basic fibroblast growth factor (bFGF) on hepatocyte transplantation (HTx). Lewis rats served asâ€¦ (More)

In Finance, the modeling of a correlation matrix is one of the important problems. In particular, the correlation matrix obtained from market data has the noise. Here we apply the de-noisingâ€¦ (More)

The present paper considers a system in which components stochastical1y deteriorate with age. When the component fails, it is repaired with a specified repair time distribution or left as it is untilâ€¦ (More)