Analysis of two-stage precoding schemes for massive multi-user MIMO downlink systems

Author(s):  
Wenjie Tang ◽  
Yinglei Teng ◽  
Yi Man ◽  
Mei Song
Keyword(s):  
2013 ◽  
Vol 61 (1) ◽  
pp. 312-324 ◽  
Author(s):  
Moonsik Min ◽  
Dongsik Kim ◽  
Hyun-Myung Kim ◽  
Gi-Hong Im
Keyword(s):  

2015 ◽  
Vol 63 (6) ◽  
pp. 2200-2211 ◽  
Author(s):  
Donggun Kim ◽  
Gilwon Lee ◽  
Youngchul Sung

Author(s):  
Sengshiu Chung ◽  
Peggy Cebe

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.


2007 ◽  
Vol 177 (4S) ◽  
pp. 121-121
Author(s):  
Antonio Dessanti ◽  
Diego Falchetti ◽  
Marco Iannuccelli ◽  
Susanna Milianti ◽  
Gian P. Strusi ◽  
...  
Keyword(s):  

2007 ◽  
Vol 177 (4S) ◽  
pp. 120-120
Author(s):  
Pamela I. Ellsworth ◽  
Anthony Caldamone
Keyword(s):  

2005 ◽  
Vol 38 (18) ◽  
pp. 68
Author(s):  
SHARON WORCESTER
Keyword(s):  

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