Results 11 to 20 of about 121,507 (253)

Influência do material e volume do porta-amostra na determinação termogravimétrica do teor de cinzas em mel Influence of material and volume of the sample holder on the thermogravimetric determination of ash contents in honey

open access: yesQuímica Nova, 2005
The results suggest that the two variables studied are significant and that they may be independently optimized. The material of the sample holder interferes with the incineration process only due to the amount of heat transfered.
Maria Lurdes Felsner   +4 more
doaj   +1 more source

Aplicação de planejamento fatorial a protocolo de extração e fixação de sulfetos volatilizáveis por acidificação (SVA) em amostras de sedimento Factorial design used on the extraction and fixation of acid volatile sulfides (AVS) from sediment samples

open access: yesQuímica Nova, 2009
The AVS is defined operationally as acid volatile sulfide, which is a controlling phase on the partition of some metallic species in sediments. A Factorial design was evaluated by means of 16 experiments and using four variables: temperature, extraction ...
Danielle Caroline Schnitzler   +2 more
doaj   +1 more source

Minimum Aberration Split-Plot Designs Focusing on the Whole Plot Factors

open access: yesMathematics, 2022
In some experiments, the levels of some factors are difficult to change; then fractional factorial split-plot (FFSP) designs are suitable for selection.
Minyang Hu, Shengli Zhao
doaj   +1 more source

Split-Plot Designs with Few Whole Plot Factors Containing Clear Effects

open access: yesFractal and Fractional, 2022
Fractional factorial split-plot designs are widely used when it is impractical to perform fractional factorial experiments in a completely random order.
Yuna Zhao
doaj   +1 more source

Estudo das Propriedades do Pseudofruto do Cajueiro na Adsorção de Cr (VI)

open access: yesOrbital: The Electronic Journal of Chemistry, 2013
In this study, the Cr (VI) adsorption properties by cashew (Anacardium occidentale L.) were studied in a batch system. The effects of pH (5.0 and 7.0), drying process – S (oven-dried and lyophilized), particle size – P (0.10 – 0.25 and 0.25 – 0.84 mm ...
Thiago C. Medeiros   +3 more
doaj   +1 more source

Experimental Investigations of Hole - EDM to Optimize Electrode Wear through Full Factorial of Design of Experiment [PDF]

open access: yesEngineering and Technology Journal, 2013
Electrical discharge machining (EDM) is a process where the material removal of the workpiece is achieved through high frequency sparks between the tool (electrode) and the workpiece immersed into the dielectric solution.
Shukry H. Aghdeab, Laith A. Mohammed
doaj   +1 more source

Experimental Investigations of Hole - EDM to Optimize ElectrodeWear through Full Factorial of Design of Experiment [PDF]

open access: yesEngineering and Technology Journal, 2015
Electrical discharge machining (EDM) is a process where the material removal of the workpiece is achieved through high frequency sparks between the tool (electrode) and the workpiece immersed into the dielectric solution.
Shukry H. Aghdeab, Laith A. Mohammed
doaj   +1 more source

Enhancement of solubility of paclitaxel by applying factorial design

open access: yesCurrent Medicine Research and Practice, 2021
Background: The poor aqueous solubility and low bioavailability of antineoplastic drugs restrict the oral route for the cancer therapy. However, specific nanotechnologies developed to address this issue.
Pragya Baghel   +4 more
doaj   +1 more source

Screening of Medium Compositions for Recombinant Lipase Production via Two-level Fractional Factorial Design

open access: yesJournal of Academia, 2021
The increasing demand for natural producing protein such as lipase in the food and detergent industries had been in great concern for the past decades. Therefore, the production of recombinant lipase may serve as an alternative.
Wan Siti Atikah Wan Omar   +1 more
doaj  

Eksperimen Optimasi Kekerasan Paduan Kuningan dengan Metode Desain Faktorial 33

open access: yesOPSI, 2019
Brass material is widely used by SME industries in Indonesia including the gamelan industry, the pottery industry, and the handicraft industry. This research aims to improve the quality of brass material which is a combination of copper and nickel ...
Novira Dwi Rahma   +3 more
doaj   +1 more source

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