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Your search keyword '"Li, Ningda"' showing total 4 results
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4 results on '"Li, Ningda"'

1. An information model for use in software management estimation and prediction

Author

Li, Ningda R and Zelkowitz, Marvin V

Subjects
Computer Programming And Software
Abstract

This paper describes the use of cluster analysis for determining the information model within collected software engineering development data at the NASA/GSFC Software Engineering Laboratory. We describe the Software Management Environment tool that allows managers to predict development attributes during early phases of a software project and the modifications we propose to allow it to develop dynamic models for better predictions of these attributes.

Published
1993

4. Impact of rapid thermal annealing of Mo coated soda lime glass substrate on device performance of evaporated Cu2ZnSnS4 thin film solar cells.

Author

Cui, Hongtao, Liu, Xiaolei, Song, Ning, Li, Ningda, Liu, Fangyang, and Hao, Xiaojing

Subjects
*IMPACT (Mechanics), *THIN films, *SOLAR cells, *ANNEALING of metals, *PERFORMANCE evaluation, *COPPER compounds
Abstract

Abstract: An industry compatible annealing method-rapid thermal annealing (RTA) of Mo coated soda lime glass substrate has been investigated to improve evaporated Cu2ZnSnS4 (CZTS) thin film solar cell efficiency. It indicates that the RTA treatment makes the Mo film dense, facilitates the column growth of the Mo film and the growth of the CZTS absorber though it enhances the formation of voids and secondary phases in the meantime. Also, this treatment causes low absorption of the absorber. Consequently, the treatment enhances open circuit voltage (V OC) as well as efficiency dramatically, improves fill factor (FF) mildly; though lowers the short circuit current density (J SC) slightly. [Copyright &y& Elsevier]

Published
2014
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