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Index to 1984 NASA Tech Briefs, volume 9, numbers 1-4 [PDF]

open access: yes, 1987
Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage ...

core   +1 more source

Effect of stress concentrations in composite structures [PDF]

open access: yes
Composite structures have found wide use in many engineering fields and a sound understanding of their response under load is important to their utilization.
Babcock, C. D., Waas, A. M.
core   +1 more source

Voltammetric Determination of Rutin by Using Disposable Pencil Graphite Electrode

open access: yesErzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
In this study, an electrochemical method was developed for the determination of rutin. The pencil graphite electrode, a disposable and low cost electrode, showed a very good catalytic effect with the significant enhancement of the peak current compared to the glassy carbon electrode.
openaire   +3 more sources

Voltammetric Determination of Vanillin Using a Pretreated Pencil Graphite Electrode

open access: yesAkademik Gıda, 2019
In this study, a sensitive voltammetric method for the determination of vanillin in commercial food products was proposed using a pencil lead as an electrode material. In the cyclic voltammograms of vanillin recorded in pH 8.0 Britton Robinson buffer at the pre-oxidized pencil graphite electrode (p-PGE), a sharp peak was observed at about 520 mV ...
openaire   +3 more sources

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