A new gas chromatographic/mass spectrometric (GC/MS) method was developed to detect 2-methylanthraquinone (2-MeA) in wood dust. 2-MeA is present in teak wood (a suspected human carcinogen) but not in oak, beech, mahogany, birch, ash or pine. The method involved collection of workplace dust on filters and extraction of 2-MeA with methanol and GC/MS analysis. The method was tested on teak wood du...

Augmented Reality (AR) is a visualization technique in which computer generated graphics are superimposed over one's view of the real world. This paper reports results of recent studies in which navigation data was superimposed into a ship pilot's field of view, including a system recently instaIIed on the US military s High Speed Catamaran Joint Venture (HSV-Xl). The system displays both navig...

The Rio+20 United Nations Conference on Sustainable Development represents a crucial opportunity to place environmental health at the forefront of the sustainable development agenda. Billions of people living in low- and middle-income countries continue to be afflicted by preventable diseases due to modifiable environmental exposures, causing needless suffering and perpetuating a cycle of pover...

Ship motion prediction fs an important practical problem in design of many Ocean systems i.e. fire controls, air craft landing and take off. As such the problem has received considerable attention In the past and various attempts for designing estimators via the statistical methodology were made in the past. In this paper the design of the ship position estimator via neural networks is consider...

Emissions from passenger ferries operating in urban harbors may contribute significantly to emissions inventories and commuter exposure to air pollution. In particular, ferries are problematic because of high emissions of oxides of nitrogen (NOx) and particulate matter (PM) from primarily unregulated diesel engines. This paper explores technical solutions to reduce pollution from passenger ferr...

Eceng gondok merupakan tumbuhan air yang menjadi gulma karena pertumbuhannya tidak dapat dikendalikan akibat limbah nutrient masuk ke wilayah perairan. Danau Rawa Pening di Kabupaten Semarang salah satu perairan terdampak masifnya pertumbuhan eceng gondok. Salah upaya nyata untuk mengatasi masalah adalah berdirinya usaha Bengok Craft mencoba mengelola produk kreatif bidang fesyen dan aksesoris....

We have implemented, using Craft (the Cray MPP data parallel language) and HPF 1.1, three basic scientific codes and kernels: a weather forecast program from NCAR, a tensor product, a Monte Carlo application. We compare the performance of the HPF programs to their Craft and message passing versions. Then, we discuss the pros and cons of the data parallel compilers we used and HPF data parallel ...