Results 31 to 40 of about 500,786 (279)

Evaluation of the influence of base and alkyl bromide on synthesis of pyrazinoic acid esters through fatorial design

Química Nova, 2009
Pyrazinoic acid esters have been synthesized as prodrugs of pyrazinoic acid. In the literature, its preparation is reported through the reaction of pyrazinoyl chloride with alcohols and the reaction with DCC/DMAP.
João Paulo dos Santos Fernandes, Veni Maria Andres Felli   +1 more
doaj   +1 more source

How to use analysis of variance correctly——an analysis of variance for the univariate quantitative data collected from the factorial design

Sichuan jingshen weisheng, 2022
The purpose of this paper was to introduce the factorial design and its quantitative data analysis of variance and the SAS implementation. Factorial design could not only present the main effect magnitude of all experimental factors， but also ...
Hu Chunyan, Hu Liangping
doaj   +1 more source

Effects of missing observations on predictive capability of central composite designs

, 2014
Quite often in experimental work, many situations arise where some observations are lost or become unavailable due to some accidents or cost constraints.
Adebayo, Bamiduro Timothy, Chukwu, Angela Unna, Nwanzo, Amahia Godwin, Yakubu, Yisa   +3 more
core   +1 more source

Influência das variáveis nitrogênio, fósforo e ºBrix na produção dos metabólicos secundários contaminantes totais da fermentação alcoólica Influence of nitrogen, phosphorus and ºBrix on the production of total secondary contaminant metabolites (MSCT) of alcoholic fermentation

Química Nova, 2006
The present study evaluated the influence of nitrogen, phosphorus and ºBrix on the production of MSCT through a factorial design methodology and analysis of response surface.
José Alexsandro Silva, Flávio Luiz Honorato da Silva, Rômulo Romeu da Nóbrega Alves, Davi Pereira de Santana   +3 more
doaj   +1 more source

Full Factorial Design for Gold Recovery from Industrial Solutions

Toxics, 2021
Gold is one of the precious metals with multiple uses, whose deposits are much smaller than the global production needs. Therefore, extracting maximum gold quantities from industrial diluted solutions is a must.
Maria Mihăilescu, Adina Negrea, Mihaela Ciopec, Petru Negrea, Narcis Duțeanu, Ion Grozav, Paula Svera, Cosmin Vancea, Alina Bărbulescu, Cristian Ștefan Dumitriu   +9 more
doaj   +1 more source

Optimization of a Centrifugal Compressor Using the Design of Experiment Technique [PDF]

, 2019
Centrifugal compressor performance is affected by many parameters, optimization of which can lead to superior designs. Recognizing the most important parameters affecting performance helps to reduce the optimization process cost.
Aungier, Mason, Mojaddam
core   +1 more source

Remote Monitoring in Myasthenia Gravis: Exploring Symptom Variability

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Myasthenia gravis (MG) is a rare, autoimmune disorder characterized by fluctuating muscle weakness and potential life‐threatening crises. While continuous specialized care is essential, access barriers often delay timely interventions. To address this, we developed MyaLink, a telemedical platform for MG patients.
Maike Stein, Maximilian Mönch, Meret Herdick, Frauke Stascheit, Sarah Hoffmann, Hannah Preßler, Philipp Mergenthaler, Carla Dusemund, Paolo Doksani, Haoqi Sun, Pushpa Narayanaswami, Andreas Meisel, Lea Gerischer, Sophie Lehnerer   +13 more
wiley   +1 more source

Factorial design to obtain magnetized poly(ethyl acrylate-co-divinylbenzene)

Polímeros
Magnetized polymers are produced by incorporating magnetic particles in a polymeric matrix. This article describes the use of the suspension polymerization technique using ethyl acrylate and divinylbenzene as monomers, in the presence of heptane and/or ...
Kelly Lúcia Nazareth Pinho de Aguiar, Kaio Alves Brayner Pereira, Marcelo Sierpe Pedrosa, Márcia Angélica Fernandes e Silva Neves   +3 more
doaj   +1 more source

Factorial Design in Cement Raw Mix Reactivity Investigation

Materiales de Construccion, 1989
The present paper corroborates, that experimental design technics are applicable to raw mix burnability investigations, and with it the obtained results could cover all the range of possible concentrations of industrial interest. Obtained results agree
Gabriel Luis Duque Fernández, Josefina de las Mercedes Cardoso Camacho, Ester Rubio Frías, Wilhem Muller   +3 more
doaj   +1 more source

Estimability and efficiency in nearly orthogonal 2[m1] x 3[m2] deletion designs [PDF]

, 1990
This article considers single replicate factorial experiments in incomplete blocks. A single replicate 2^m1 x 3^m2 deletion design in 3 incomplete blocks is obtained from a single replicate 3^m, where m = m_1 + m_2, preliminary design by deleting all ...
Angus, John E., Mahoney, Joan M.
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