A REVIEW ON OPTIMISTIC IMPACT OF CLEANER PRODUCTION ON MANUFACTURING SUSTAINABILITY

As a continuous application of an integrated environmental strategy, Cleaner Production (CP) is seen to have a substantial impact in establishing a sustainable manufacturing system. Thus, this paper explores and discusses intensively the impacts and benefits gains from the CP implementation that influences the sustainability development. The findings show that CP have optimistic impact on manufacturing competency, environment and economics performance which considered most significant influence on sustainability. Besides, economic performance was identified as an ultimate goal in manufacturing sustainability that can be enhanced significantly by competency and environmental performance. This paper provides the correct translational process of CP in order to achieve high level of sustainable manufacturing practice included the specific characteristics of performances. It can be referred as a guideline for manufacturing firms to define and measure performance based on CP implementation

Pulsar Timing at Urumqi Astronomical Observatory: Observing System and Results

A pulsar timing system has been operating in the 18-cm band at the Urumqi Astronomical Observatory 25-m telescope since mid-1999. Frequency resolution allowing dedispersion of the pulsar signals is provided by a 2X128X2.5 MHz filterbank/digitiser system. Observations of 74 pulsars over more than 12 months have resulted in updated pulsar periods and period derivatives, as well as improved positions. Comparison with previous measurements showed that the changes in period and period derivative tend to have the same sign and to be correlated in amplitude. A model based on unseen glitches gives a good explanation of the observed changes, suggesting that long-term fluctuations in period and period derivatives are dominated by glitches. In 2000 July, we detected a glitch of relative amplitude Delta_nu/nu~24X1e-9 in the Crab pulsar. The post-glitch decay appears similar to other large Crab glitches.Comment: 11 pages, 9 figures, 4 tables, accepted by MNRA