Results 11 to 20 of about 158,911 (268)

Analysis of white cement production during low-temperature firing

open access: yesZaštita Materijala, 2023
The possibility to produce white Eco-cement with the use of a dry method under low-temperature firing of a raw material mixture based on the CaO - SiO2 - AL2O3 - MgO system is shown.
Lev Chernyak   +4 more
doaj   +1 more source

Effect of olivine as MgO-bearing flux on low- and high-alumina iron ore pellets [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2023
In the present study, the effect of MgO in the form of olivine flux on low- and high-alumina iron ore pellet mineralogy and pellet quality was studied. Green pellets were prepared by varying the MgO content from 0 to 1.5% with a basicity (CaO/SiO2) of 0 ...
Umadevi T., Sah R.
doaj   +1 more source

Rocha com espodumênio como fundente para massas cerâmicas tradicionais Spodumene rock as a flux for traditional ceramic bodies

open access: yesCerâmica, 2010
Investigou-se a atuação de uma rocha com espodumênio como fundente em massas cerâmicas, analisando-se sua reatividade com outras matérias-primas, como quartzo e caulim.
S. R. Bragança   +2 more
doaj   +1 more source

Determinant indicators for labor market efficiency and higher education and training: evidence from Middle East and North Africa countries [PDF]

open access: yesProblems and Perspectives in Management, 2020
This study aims to explore the determinant indicators for the labor market efficiency and the higher education and training factors that can help in increasing the productivity in labor market and the quality in higher education and training, as well as ...
Elsayed A. H. Elamir
doaj   +1 more source

Preparation of Sm2O3 doped La2Ce2O7 ceramics for thermal barrier coatings by high temperature solid-state reaction

open access: yes工程科学学报, 2015
Sm2O3 partly doped La2Ce2O7 ceramic materials for thermal barrier coatings were prepared by high temperature solid-state reaction using La2O3, CeO2 and Sm2O3 as raw materials. Their chemical formula is (SmxLa1-x)2Ce2O7.
MAO Ya-nan   +5 more
doaj   +1 more source

Altered Synaptic Transmission and Excitability of Cerebellar Nuclear Neurons in a Mouse Model of Duchenne Muscular Dystrophy

open access: yesFrontiers in Cellular Neuroscience, 2022
Duchenne muscular dystrophy (DMD) is generally regarded as a muscle-wasting disease. However, human patients and animal models of DMD also frequently display non-progressive cognitive deficits and high comorbidity with neurodevelopmental disorders ...
Tabita Kreko-Pierce   +2 more
doaj   +1 more source

Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis

open access: yesEnergies, 2019
Drying and firing of ceramic products are processes that require high energy consumption. Making these processes more efficient can improve product quality, reduce processing time and energy consumption, and promote economic and environmental gains.
Ricardo S. Gomez   +6 more
doaj   +1 more source

Novos fundentes para produção da porcelana de ossos New fluxes for the production of bone china

open access: yesCerâmica, 2010
O uso de fundentes enérgicos "alternativos" foi investigado em uma formulação de porcelana de ossos em ciclo de queima rápida. As propriedades dos corpos-de-prova foram avaliadas em diferentes formulações, variando-se o tipo de fundente. A wolastonita, o
M. P Ballvé, S. R Bragança
doaj   +1 more source

Integrated Solution for Driving Series-Connected IGBTs and Its Natural Intrinsic Balancing

open access: yesEnergies, 2019
The use of series connected IGBTs is still a current subject in literature, despite such a discussion having started in the 1990s. Though countless academic studies, there are currently no available commercial products on the market for medium voltage ...
Gustavo O. Fortes   +2 more
doaj   +1 more source

Constitutive equations of earthenware material during firing processes and determination of their function forms

open access: yesNihon Kikai Gakkai ronbunshu, 2016
We propose a set of constitutive equations of earthenware material subjected to the firing process and appropriate ways of determining their function forms and relevant material parameters from a series of respective experiments. The firing process under
Seishiro MATSUBARA   +8 more
doaj   +1 more source

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