Effect of Material Combinations and Relative Crack Size on the Stress Intensity Factors of Edge Interface Cracks

In this paper, the stress intensity factors (SIFs) of a single edge interface crack in the bi-material bonded strip subjected to in-plane tension and bending moment are investigated systematically. The SIFs are computed for arbitrary material combinations with varying the relative crack size a/W. Specifically, some necessary skills as refined mesh and extrapolations of the stress intensity factors are used to improve the accuracy of the calculation. For the edge interface crack, it is found that the dimensionless SIFs are not always finite for the edge interface cracks in the bonded semi-infinite plate depending on Dundurs’ material composite parameters11th International Conference on the mechanical behavior of Materials (ICM11), 5-9 June 2011, Como, Ital

Econometric Analysis of Radiata Pine Log Trade between New Zealand and East Asian Countries

There is an increasing interest in the sustainable supply of wood from New Zealand’s plantation forests.This is due to the importance of New Zealand in global trade and uncertainty about the sustainabilityof supply from other countries, such as Russia. The aim of this paper is to identify importantfactors that influence log supply and demand for New Zealand and its key Asian markets (South Korea,Japan and China). To this end we used annual time series data from 1990 to 2008 to estimate exportsupply and import demand functions by two stage least squares with stepwise regression estimation.We found that New Zealand’s log exports to Japan and South Korea are not sensitive to price,but exports to China are sensitive to price, while New Zealand’s total harvest has a stronger influenceon log export supply to China and South Korea. New Zealand’s domestic log consumption competeswith exports to Japan, but does not compete with supply to South Korea or China. Import demand inSouth Korea, Japan, and China for New Zealand logs is negatively affected by import price, with Japan’simport demand the most price-sensitive. The three markets differ in the impact of gross domesticproduct on import demand. Gross domestic product has a strong positive impact on log demand inJapan and China, but a modest impact in South Korea

Monitoring of geosmin producing Anabaena circinalis using quantitative PCR

Available online 18 October 2013Abstract not availableHsiang-Wei Tsao, Atsuko Michinaka, Hung-Kai Yen, Steven Giglio, Peter Hobson, Paul Monis, Tsair-Fuh Li