scholarly journals Cooperative Double-IRS Aided Communication: Beamforming Design and Power Scaling

2020 ◽  
Vol 9 (8) ◽  
pp. 1206-1210 ◽  
Author(s):  
Yitao Han ◽  
Shuowen Zhang ◽  
Lingjie Duan ◽  
Rui Zhang
Keyword(s):  
Power Scaling ◽  
Aided Communication

Limitations of power scaling for high energy short wavelength lasers

1987 ◽  
Author(s):  
S. ZELAZNY ◽  
W. RUSHMORE
Keyword(s):  
Short Wavelength ◽  
High Energy ◽  
Power Scaling

scholarly journals Biological scaling in green algae: the role of cell size and geometry

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Helena Bestová ◽  
Jules Segrestin ◽  
Klaus von Schwartzenberg ◽  
Pavel Škaloud ◽  
Thomas Lenormand ◽  
...  
Keyword(s):  
Growth Rate ◽  
Population Growth ◽  
Population Growth Rate ◽  
Internal Diffusion ◽  
Scaling Exponent ◽  
Power Scaling ◽  
Nutrient Distribution ◽  
Metabolic Scaling ◽  
Key Factor ◽  
Size And Morphology

AbstractThe Metabolic Scaling Theory (MST), hypothesizes limitations of resource-transport networks in organisms and predicts their optimization into fractal-like structures. As a result, the relationship between population growth rate and body size should follow a cross-species universal quarter-power scaling. However, the universality of metabolic scaling has been challenged, particularly across transitions from bacteria to protists to multicellulars. The population growth rate of unicellulars should be constrained by external diffusion, ruling nutrient uptake, and internal diffusion, operating nutrient distribution. Both constraints intensify with increasing size possibly leading to shifting in the scaling exponent. We focused on unicellular algae Micrasterias. Large size and fractal-like morphology make this species a transitional group between unicellular and multicellular organisms in the evolution of allometry. We tested MST predictions using measurements of growth rate, size, and morphology-related traits. We showed that growth scaling of Micrasterias follows MST predictions, reflecting constraints by internal diffusion transport. Cell fractality and density decrease led to a proportional increase in surface area with body mass relaxing external constraints. Complex allometric optimization enables to maintain quarter-power scaling of population growth rate even with a large unicellular plan. Overall, our findings support fractality as a key factor in the evolution of biological scaling.

Power scaling of femtosecond enhancement cavities and high-power applications

2011 ◽  
Author(s):  
Ioachim Pupeza ◽  
Tino Eidam ◽  
Jan Kaster ◽  
Birgitta Bernhardt ◽  
Jens Rauschenberger ◽  
...  
Keyword(s):  
High Power ◽  
Power Scaling

Securing Massive MIMO Via Power Scaling

2016 ◽  
Vol 20 (5) ◽  
pp. 1014-1017 ◽  
Author(s):  
Jun Zhu ◽  
Wei Xu
Keyword(s):  
Massive Mimo ◽  
Power Scaling

Multichip vertical-external-cavity surface-emitting lasers: a coherent power scaling scheme

2006 ◽  
Vol 31 (24) ◽  
pp. 3612 ◽  
Author(s):  
Li Fan ◽  
Mahmoud Fallahi ◽  
Jörg Hader ◽  
Aramais R. Zakharian ◽  
Jerome V. Moloney ◽  
...  
Keyword(s):  
External Cavity ◽  
Cavity Surface ◽  
Power Scaling ◽  
Surface Emitting Lasers ◽  
Emitting Lasers

Power scaling and optimum crystal orientation in continuous-wave diode-pumped Yb:KLu(WO 4 ) 2 lasers

2008 ◽  
Author(s):  
Junhai Liu ◽  
Valentin Petrov ◽  
Xavier Mateos ◽  
Huaijin Zhang ◽  
Jiyang Wang
Keyword(s):  
Crystal Orientation ◽  
Continuous Wave ◽  
Power Scaling ◽  
Diode Pumped

scholarly journals Optimizing the pumping configuration for the power scaling of in-band pumped erbium doped fiber amplifiers

2012 ◽  
Vol 20 (13) ◽  
pp. 13886 ◽  
Author(s):  
Ee-Leong Lim ◽  
Shaif-ul Alam ◽  
David J. Richardson
Keyword(s):  
Fiber Amplifiers ◽  
Power Scaling ◽  
Erbium Doped

Periodic resonators for average-power scaling of stable-resonator solid-state lasers

1988 ◽  
Vol 24 (9) ◽  
pp. 1821-1824 ◽  
Author(s):  
J.M. Eggleston
Keyword(s):  
Solid State ◽  
Average Power ◽  
Power Scaling ◽  
Solid State Lasers
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