scholarly journals Electromagnetic Lens-Focusing Antenna Enabled Massive MIMO: Performance Improvement and Cost Reduction

2014 ◽  
Vol 32 (6) ◽  
pp. 1194-1206 ◽  
Author(s):  
Yong Zeng ◽  
Rui Zhang ◽  
Zhi Ning Chen
Keyword(s):  
Performance Improvement ◽  
Cost Reduction ◽  
Massive Mimo

Investigations on Dynamic Puncture Behaviors of Integrated Composite Reinforced with Varying Fabrics

2013 ◽  
Vol 365-366 ◽  
pp. 1070-1073 ◽  
Author(s):  
Chia Chang Lin ◽  
Ting Ting Li ◽  
Ching Wen Lou ◽  
Jan Yi Lin ◽  
Jia Horng Lin
Keyword(s):  
Performance Improvement ◽  
Cost Reduction ◽  
Body Armor ◽  
Packaging Materials ◽  
Puncture Resistance ◽  
Fabric Reinforcement ◽  
Number Of Layers ◽  
Layer Composite ◽  
Puncture Force ◽  
And Performance

The dynamic puncture resistance of multi-layer integrated composite which was comprised of glass fabric reinforcement or Kevlar fabric reinforcement and nonwovens were discussed as related to recycled Kevlar fibers amount, number of layer and K-ply position for purpose of cost reduction and performance improvement. The result shows that, 20 wt% Kevlar fibers contained in nonwovens have the optimum puncture resistance. And the dynamic puncture force increases linearly with number of layers, and also improves proportionally as increasing number of K-ply. The resultant multi-layer composite is expected to be used as body armor interlayer and packaging materials.

scholarly journals Performance Improvement for Multi-User Millimeter-Wave Massive MIMO Systems

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 87735-87748
Author(s):  
Diego Fernando Carrera ◽  
Cesar Vargas-Rosales ◽  
Rafaela Villalpando-Hernandez ◽  
Jose Alejandro Galaviz-Aguilar
Keyword(s):  
Performance Improvement ◽  
Millimeter Wave ◽  
Massive Mimo ◽  
Mimo Systems

Analysis of Optimal Balancing for Robotic Manipulators in Repetitive Motions

2018 ◽  
Vol 140 (8) ◽  
Author(s):  
Amin Nikoobin ◽  
Mojtaba Moradi
Keyword(s):  
Performance Improvement ◽  
Trajectory Planning ◽  
Cost Reduction ◽  
Robotic Manipulators ◽  
Point Of View ◽  
Dynamic Equations ◽  
Potential Fields ◽  
Cost Functions ◽  
Closed Contour ◽  
Static Balancing

Balancing plays a major role in performance improvement of robotic manipulators. From an optimization point of view, some balancing parameters can be modified to decrease motion cost. Recently introduced, this concept is called optimal balancing: an umbrella term for static balancing and other balancing methods. In this method, the best combination of balancing and trajectory planning is sought. In this note, repetitive full cycle motion of robot manipulators including different subtasks is considered. The basic idea arises from the fact that, upon changing dynamic equations of a robotic manipulator or cost functions in subtasks, the entire cycle of motion must be reconsidered in an optimal balancing problem. The possibility of cost reduction for a closed contour in potential fields is shown by some simulations done for a PUMA-like robot. Also, the obtained results show 34.8% cost reduction compared to that of static balancing.

System Based Code: Basic Structure

2002 ◽  
Author(s):  
Yasuhide Asada ◽  
Masanori Tashimo ◽  
Masahiro Ueta
Keyword(s):  
Performance Improvement ◽  
System Reliability ◽  
Cost Reduction ◽  
Basic Structure ◽  
Nuclear Industry ◽  
Theoretical Structure ◽  
Engineering Requirement ◽  
Reliability Performance ◽  
Theoretical Procedure

This paper introduces the basic theoretical structure of the “System Based Code” which has initially been proposed by the authors intending to give nuclear industry a leap of progress in the system reliability, performance improvement and cost reduction. The System Based Code intends to give a theoretical procedure to optimize the reliability of the system by administrating every related engineering requirement throughout the life of the system: from design to decommissioning.

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