applicability evaluation
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2021 ◽  
pp. 108594
Author(s):  
Chunling Wu ◽  
Fang Liu ◽  
Xiaofeng Li ◽  
Zhichao Wang ◽  
Zhaowei Xu ◽  
...  


2021 ◽  
Vol 2005 (1) ◽  
pp. 012015
Author(s):  
Han Zhang ◽  
Song Xue ◽  
Li Ma ◽  
Zechen Wu ◽  
Gao Zhang ◽  
...  




2021 ◽  
Vol 143 ◽  
pp. 110906
Author(s):  
Sangwoo Park ◽  
Seokjae Lee ◽  
Chihun Sung ◽  
Hangseok Choi


2021 ◽  
Vol 11 (11) ◽  
pp. 5148
Author(s):  
Maurice Preidel ◽  
Rainer Stark

To develop smart services to successfully operate as a component of smart service systems (SSS), they need qualitatively and quantitatively sufficient data. This is especially true when using statistical methods from the field of artificial intelligence (AI): training data quality directly determines the quality of resulting AI models. However, AI model quality is only known when AI training can take place. Additionally, the creation of not yet available data sources (e.g., sensors) takes time. Therefore, systematic specification is needed alongside smart service systemsSSS development. Today, there is a lack of systematic support for specifying data relevant to smart services. This gap can be closed by realizing the systematic approach SemDaServ presented in this article. The research approach is based on Blessing’s Design Research Methodology (literature study, derivation of key factors, success criteria, solution functions, solution development, applicability evaluation). SemDaServ provides a three-step process and five accompanying artifacts. Using domain knowledge for data specification is critical and creates additional challenges. Therefore, the SemDaServ approach systematically captures and semantically formalizes domain knowledge in SysML-based models for information and data. The applicability evaluation in expert interviews and expert workshops has confirmed the suitability of SemDaServ for data specification in the context of SSS development. SemDaServ thus offers a systematic approach to specify the data requirements of smart services early on to aid development to continuous integration and continuous delivery scenarios.



2021 ◽  
Vol 2 (3) ◽  
pp. 189-194
Author(s):  
Boris B. Danilov ◽  
Alexandr A. Rechkin

The possibility of using construction design with a stationarily installed conical ring-shaped elastic valve in pneumatic impact machines is considered. Using a simulation model of the contact interaction of the striker with the valve, the shape of the valve was optimized and its applicability was proved for sealing the return strike chamber.



2021 ◽  
pp. 1-8
Author(s):  
Pei-Hua Li ◽  
Min-Chun Liao ◽  
Hsy-Yu Tzeng ◽  
Yen-Hsueh Tseng ◽  
Tian-Ming Yen


Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2708
Author(s):  
Magdalena Skunik-Nuckowska ◽  
Patryk Rączka ◽  
Justyna Lubera ◽  
Aleksandra A. Mroziewicz ◽  
Sławomir Dyjak ◽  
...  

The one of the most important issues in constructing light-harvesting photovoltaic (PV) systems with a charge storage element is its reliable and uninterrupted use in highly variable and weather-dependent conditions in everyday applications. Herein, we report the construction and applicability evaluation of a ready-to-use portable solar charger comprising a silicon solar cell and an enhanced energy hybrid supercapacitor using activated carbon electrodes and iodide-based aqueous electrolyte to stabilise the PV power under fluctuating light conditions. The optimised electrode/electrolyte combination of a supercapacitor was used for the construction of a 60 F/3 V module by a proper adjustment of the series and parallel connections between the CR2032 coin cells. The final photo-rechargeable device was tested as a potential supporting system for pulse electronic applications under various laboratory conditions (temperature of 15 and 25 °C, solar irradiation of 600 and 1000 W m−2).





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