scholarly journals Heating rate effects on the crystallization behavior of isotactic polypropylene from mesophase – A de-polarized light transmission study

Polymer ◽  
2012 ◽  
Vol 53 (13) ◽  
pp. 2777-2782 ◽  
Author(s):  
Harutoshi Asakawa ◽  
Koji Nishida ◽  
Junpei Yamamoto ◽  
Rintaro Inoue ◽  
Toshiji Kanaya
Keyword(s):  
Heating Rate ◽  
Isotactic Polypropylene ◽  
Crystallization Behavior ◽  
Light Transmission ◽  
Polarized Light ◽  
Rate Effects ◽  
Transmission Study

Stocking rate effects on sheep and forage productivity under rubber in Malaysia

1997 ◽  
Vol 128 (3) ◽  
pp. 339-346 ◽  
Author(s):  
D. T. CHONG ◽  
I. TAJUDDIN ◽  
Abd. M. S. SAMAT ◽  
W. W. STÜR ◽  
H. M. SHELTON
Keyword(s):  
Cover Crops ◽  
Light Transmission ◽  
Stocking Rate ◽  
Kuala Lumpur ◽  
Low Light ◽  
Mikania Micrantha ◽  
Naturally Occurring ◽  
Rate Effects ◽  
Palatable Species ◽  
Stocking Rates

The productivity of grazing sheep was assessed under 7-year-old rubber at the Rubber Research Institute of the Malaysia Experimental Station at Sungai Buloh near Kuala Lumpur between October 1988 and May 1990. The sheep were Dorset × Marlin crossbred lambs and they grazed planted leguminous cover crops and naturally occurring species at a range of stocking rates.In the immature rubber trial, presentation yields of forage declined with time regardless of stocking rate. In the mature rubber trial, presentation yields of forage were low (<1000 kg/ha) due to low light transmission. High stocking rates (>6 sheep/ha) resulted in a decrease in the proportion of palatable species, namely Pueraria phaseoloides, Paspalum conjugatum, Asystasia gangetica and Mikania micrantha and an increase in the proportion of the less palatable species such as Calopogonium caeruleum and Cyrtococcum oxyphyllum.Daily liveweight gains ranged from 100 g/lamb per day at 4 sheep/ha to 70 g/lamb per day at 14 sheep/ha in the immature rubber trial. Only the lowest stocking rate of 2 sheep/ha was continuously sustainable in the mature rubber trial. The estimated maximum liveweight gain that could be achieved under immature rubber was 266 kg/ha per year at a stocking rate of 13·2 sheep/ha.

Investigation of the crystallization behavior of isotactic polypropylene polymerized with different Ziegler-Natta catalysts

2013 ◽  
Vol 129 (5) ◽  
pp. 2663-2670 ◽  
Author(s):  
Jian Kang ◽  
Jingping Li ◽  
Shaohua Chen ◽  
Hongmei Peng ◽  
Bin Wang ◽  
...  
Keyword(s):  
Isotactic Polypropylene ◽  
Crystallization Behavior ◽  
Ziegler Natta Catalysts

Crystallization behavior of isotactic polypropylene/magnesium salt whisker composites modified by compatibilizer PP-g-MAH

2010 ◽  
Vol 103 (2) ◽  
pp. 701-710 ◽  
Author(s):  
Zhiyong Wei ◽  
Wanxi Zhang ◽  
Guangyi Chen ◽  
Jicai Liang ◽  
Ying Chang ◽  
...  
Keyword(s):  
Isotactic Polypropylene ◽  
Crystallization Behavior ◽  
Magnesium Salt

Light-transmission study of coarsening in a nematic liquid crystal

1992 ◽  
Vol 45 (4) ◽  
pp. R2169-R2172 ◽  
Author(s):  
R. Snyder ◽  
A. N. Pargellis ◽  
P. A. Graham ◽  
B. Yurke
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Light Transmission ◽  
Transmission Study
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