Spectral and power characteristics of a 5% Tm : KLu(WO4)2 Nm-cut minislab laser passively Q-switched by a Cr2+ : ZnSe crystal

2017 ◽  
Vol 47 (11) ◽  
pp. 981-985
Author(s):  
S M Vatnik ◽  
I A Vedin ◽  
P F Kurbatov ◽  
E A Smolina ◽  
A A Pavlyuk ◽  
...  
2016 ◽  
Vol 2016 (1) ◽  
pp. 3-10 ◽  
Author(s):  
O.A. Beletsky ◽  
◽  
N.I. Suprunovska ◽  
A.A. Shcherba ◽  
◽  
...  

2019 ◽  
Vol 78 (5) ◽  
pp. 373-383 ◽  
Author(s):  
S. A. Vlasenko ◽  
А. V. Degtyarev ◽  
M. M. Dubinin ◽  
V. A. Maslov

Author(s):  
An-Sam Peng ◽  
Kun-Ming Chen ◽  
Guo-Wei Huang ◽  
Ming-Hsiang Cho ◽  
Sheng-Chun Wang ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2912
Author(s):  
Krzysztof Doerffer ◽  
Janusz Telega ◽  
Piotr Doerffer ◽  
Paulina Hercel ◽  
Andrzej Tomporowski

Savonius rotors are large and heavy because they use drag force for propulsion. This leads to a larger investment in comparison to horizontal axis wind turbine (HAWT) rotors using lift forces. A simple construction of the Savonius rotor is preferred to reduce the production effort. Therefore, it is proposed here to use single-segment rotors of high elongation. Nevertheless, this rotor type must be compared with a multi-segment rotor to prove that the simplification does not deteriorate the effectiveness. The number of segments affects the aerodynamic performance of the rotor, however, the results shown in the literature are inconsistent. The paper presents a new observation that the relation between the effectiveness of single- and multi-segment rotors depends on the wind velocity. A single-segment rotor becomes significantly more effective than a four-segment rotor at low wind speeds. At high wind speeds, the effectiveness of both rotors becomes similar.


2021 ◽  
Vol 1754 (1) ◽  
pp. 012029
Author(s):  
Shumei Jiao ◽  
Yuanyang Chen ◽  
Yijia Cao ◽  
Changfeng Liao ◽  
Yi Tan ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10018-10026
Author(s):  
Chang Liu ◽  
Zeyin He ◽  
Jianmin Niu ◽  
Qiang Cheng ◽  
Zongchen Zhao ◽  
...  

In this work, we have fabricated lithium-ion capacitor using SnO2/PCN as anode and waste coffee grounds derived PCN as cathode, which delivers good combination of high energy and power characteristics.


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