Testing Potential New Sites for Optical Telescopes in Australia

The New Tools for a Global Survey of Potential Sites for the Future Giant Telescopes

The siting of future giant telescopes poses a challenge to the astronomical community. Some of the top level existing observatories are already too crowded; others do not meet the specifications on particular environmental parameters such as wind or seismicity. On the other hand it has been proven that continental sites can be as good as islands, opening the way for many candidates not yet prop...

New Generation Ground-Based Optical/Infrared Telescopes

Mirror Design For Optical Telescopes

The reflectormirror is the most important component of an astronomical optical telescope. This chapter provides discussions on the requirements for astronomical optical mirrors; the ways to reduce mirror weight, mirror cost, and mirror materials; the methods of mirror figuring, polishing, and surface coating; the design of mirror support mechanism; the concept of mirror seeing; and the stray li...

an appropriate model for exchange rate predictability in iran: comparing potential forecastability

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Bronchodilator reversibility testing: laboratory practices in Australia and New Zealand.

OBJECTIVES To determine the variation in the methods used to assess and interpret the reversibility of airflow limitation in lung-function laboratories throughout Australia and New Zealand. DESIGN A postal survey performed in 2000, requesting details of methods used to assess and interpret bronchodilator reversibility. SETTING AND PARTICIPANTS 60 lung-function laboratories identified from t...