Study on the Long-Term Acid Rain Aging Behaviour of Polyamide 6

2009 ◽  
Vol 48 (3) ◽  
pp. 526-536 ◽  
Author(s):  
Ying Shu ◽  
Xiaohe Li ◽  
Lin Ye
Keyword(s):  
Science ◽  
1996 ◽  
Vol 272 (5259) ◽  
pp. 244-246 ◽  
Author(s):  
G. E. Likens ◽  
C. T. Driscoll ◽  
D. C. Buso

2016 ◽  
Vol 819 ◽  
pp. 580-584
Author(s):  
Jamal Umer ◽  
Ivan Saprounov ◽  
Igor Emri ◽  
Barbara Zupančič ◽  
Muhammad Wakil Shahzad

Polymers always show time-dependent mechanical properties. In order to use polymers in engineering applications, long-term mechanical propertes should be characterized. Free volume theroy is the mostly used theory to predict and model the mechanical properties of polymers. The effect of temperature is modelled thorugh William-Landel-Ferry (WLF) equation, whereas, the combined effect of temperature and pressure is modelled by Filler-Moonan-Tschoegl (FMT) equation. Both of the models are based on free volume theory. A set of expermentations were performed to investigate the validity of free volume concpet for one of the most important engineering polymer; i.e. Polyamide-6.


Soil Science ◽  
2013 ◽  
Vol 178 (11) ◽  
pp. 639-645 ◽  
Author(s):  
Jianchao Zhang ◽  
Weibing Xun ◽  
Zhen Zhu ◽  
Dongchu Li ◽  
Qirong Shen ◽  
...  

1995 ◽  
Vol 21 (2) ◽  
pp. 119-143 ◽  
Author(s):  
Cecilia Albin

A major problem in managing and ultimately resolving many environmental issues, transboundary and global in particular, is how to tackle the fundamental questions of distributive justice and fairness involved. Little systematic reflection and research have been devoted to these issues. The problem of acid rain is a prime example. Strategies to abate acid rain must, among other requirements, be viewed as fair and just if they are to be politically accepted, implemented and honoured in the long term. Research and actual negotiations in this area to date have, by contrast, focused almost exclusively on the generation and analysis of emission reduction strategies which are effective in economic and, more recently, environmental terms.


1998 ◽  
Vol 12 (3) ◽  
pp. 53-68 ◽  
Author(s):  
Richard Schmalensee ◽  
Paul L Joskow ◽  
A. Denny Ellerman ◽  
Juan Pablo Montero ◽  
Elizabeth M Bailey

This paper summarizes recent empirical research on compliance costs and strategies and on permit market performance under the U.S. acid rain program, the first large-scale, long-term program to use tradeable emissions permits to control pollution. An efficient market for emissions permits developed in a few years, and this program more than achieved its early goals on time, and it cost less than had been projected. Because of expectation errors, however, investment was excessive, and permit prices substantially understate abatement costs. The tradeable permits approach has worked well, but it is not a miracle cure for environmental problems. Coauthors are Paul L. Joskow, A. Denny Ellerman, Juan Pablo Montero, and Elizabeth M. Bailey.


2001 ◽  
Vol 28 (7) ◽  
pp. 1227-1230 ◽  
Author(s):  
Brian A. Branfireun ◽  
Kevin Bishop ◽  
Nigel T. Roulet ◽  
Gunnar Granberg ◽  
Mats Nilsson

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