scholarly journals Figures-of-Merit for Rolling-Friction-Based Triboelectric Nanogenerators

2016 ◽  
Vol 1 (1) ◽  
pp. 1600017 ◽  
Author(s):  
Tao Jiang ◽  
Wei Tang ◽  
Xiangyu Chen ◽  
Chang Bao Han ◽  
Long Lin ◽  
...  
Keyword(s):  
Rolling Friction ◽  
Figures Of Merit ◽  
Triboelectric Nanogenerators

scholarly journals A universal standardized method for output capability assessment of nanogenerators

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Xin Xia ◽  
Jingjing Fu ◽  
Yunlong Zi
Keyword(s):  
Experimental Results ◽  
Energy Output ◽  
Figures Of Merit ◽  
Output Performance ◽  
Standardized Method ◽  
Triboelectric Nanogenerators ◽  
Universal Applicability ◽  
Effective Output

Abstract To quantitatively evaluate the output performance of triboelectric nanogenerators, figures of merit have been developed. However, the current figures of merit, without considering the breakdown effect that seriously affects the effective maximized energy output, are limited for application. Meanwhile, a method to evaluate output capability of nanogenerators is needed. Here, a standardized method that considers the breakdown effect is proposed for output capability assessment of nanogenerators. Contact separation and contact freestanding-triboelectric-layer modes triboelectric nanogenerators are used to demonstrate this method, and the effective maximized energy output and revised figures of merit are calculated based on the experimental results. These results are consistent with those theoretically calculated based on Paschen’s law. This method is also conducted to evaluate a film-based piezoelectric nanogenerator, demonstrating its universal applicability for nanogenerators. This study proposes a standardized method for evaluating the effective output capability of nanogenerators, which is crucial for standardized evaluation and application of nanogenerator technologies.

Rolling Friction Enhanced Free-Standing Triboelectric Nanogenerators and their Applications in Self-Powered Electrochemical Recovery Systems

2015 ◽  
Vol 26 (7) ◽  
pp. 1054-1062 ◽  
Author(s):  
Min-Hsin Yeh ◽  
Hengyu Guo ◽  
Long Lin ◽  
Zhen Wen ◽  
Zhaoling Li ◽  
...  
Keyword(s):  
Rolling Friction ◽  
Free Standing ◽  
Self Powered ◽  
Triboelectric Nanogenerators

Proteins and direct methods

1991 ◽  
Vol 197 (3-4) ◽  
Author(s):  
Fan Hai-fu ◽  
Hao Quan ◽  
M. M. Woolfson
Keyword(s):  
First Principles ◽  
Figure Of Merit ◽  
Direct Methods ◽  
Large Structure ◽  
Low Resolution ◽  
Figures Of Merit ◽  
Large Structures ◽  
Resolution Data

AbstractConventional direct methods, which work so well for small structures, are less successful for macromolecules. Where it has been demonstrated that a solution might be found using direct methods it is then found that the usual figures of merit are unable to distinguish the few good sets of phases from the large number of sets generated. The reasons for the difficulties with very large structures are considered from a first-principles approach taking into account both the factors of having a large number of atoms and low resolution data. A proposal is made for trying to recognize good phase sets by taking a large structure as a sum of a number of smaller structures for each of which a conventional figure of merit can be applied.

Selecting the Temperature–Frequency Parameters of the Ultrasonic Measuring of Elastomer Figures of Merit

2020 ◽  
Vol 84 (11) ◽  
pp. 1415-1418
Author(s):  
S. G. Tikhomirov ◽  
S. L. Podvalny ◽  
V. I. Ryazhskikh ◽  
A. A. Khvostov ◽  
A. V. Karmanov
Keyword(s):  
Figures Of Merit ◽  
Ultrasonic Measuring

Reliability Concepts in Reservoir Design

1989 ◽  
Vol 20 (4-5) ◽  
pp. 231-248 ◽  
Author(s):  
Erich J. Plate
Keyword(s):  
Water Resources ◽  
Reliability Analysis ◽  
Conceptual Models ◽  
Dam Failure ◽  
Figures Of Merit ◽  
Irrigation Reservoir ◽  
Modes Of Failure ◽  
Reservoir Design ◽  
General Reliability ◽  
Operational Failure

The case of a dam for an irrigation reservoir is used as an example to illustrate the different modes of failure of a water resources system. The types of failure to which a dam can be subjected are described in the first section of the paper, in terms of a framework of general reliability analysis. Two applications are considered: the case of operational failure, illustrated by means of an irrigation reservoir for arid countries, and the case of dam failure due to overtopping. Conceptual models are given which permit the inclusion of reliability and other figures of merit into both operation and safety analysis.

Wear Kinetics of Steels with Diffusion Coatings in Rolling Friction

2020 ◽  
Vol 56 (1) ◽  
pp. 50-58
Author(s):  
P. V. Kaplun ◽  
V. A. Honchar ◽  
T. V. Donchenko
Keyword(s):  
Rolling Friction ◽  
Diffusion Coatings ◽  
Kinetics Of
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