Results 21 to 30 of about 34,342 (305)

The measurement of electric properties of silicate minerals [PDF]

open access: yesActa Montanistica Slovaca, 2004
In the contribution a different approach to measurements concerning dielectric properties of powder materials and compact materials will be analysed. Measurements of relative permittivity at the frequency of 50 Hz will be performed and discussed provided
Araujo Jose   +2 more
doaj  

Efeito de nutrientes combinados com indutores de resistência na proteção contra a vassoura-de-bruxa no cacaueiro Effect of nutrients combined with inducers of resistance on the protection of cocoa seedlings against witches' broom

open access: yesCiência e Agrotecnologia, 2008
Na busca por novos indutores de resistência contra a vassoura-de-bruxa no cacaueiro avaliou-se o efeito de vários nutrientes, acibenzolar-S-metil (ASM) e a combinação desses nutrientes com ASM.
Iris Lettiere do Socorro Santos da Silva   +6 more
doaj   +1 more source

Importance of laboratory experimental studies of silicate grains for exoplanet atmosphere characterization

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The study of exoplanetary atmospheres extends the frontiers of astronomy, astrophysics, and astrochemistry. Moreover, studies of exoplanets as being linked to the search for extraterrestrial life and other habitable planets are of interest not only for ...
Alexey Potapov, Jeroen Bouwman
doaj   +1 more source

The formation mechanism of the porous structure of glass ceramics from siliceous rock

open access: yesMagazine of Civil Engineering, 2020
Porous glass ceramic materials are widely used in industrial and civil engineering due to a number of redeeming features, such as high strength, low thermal conductivity, incombustibility, environmental friendliness, etc. A large number of researches are
Anatolij Ermakov   +3 more
doaj   +1 more source

Apical root-end filling with tricalcium silicate-based cement in a patient with diabetes mellitus: A case report [PDF]

open access: yesVojnosanitetski Pregled, 2016
Introduction. The material used for root-end filling has to be biocompatible with adjacent periapical tissue and to stimulate its regenerative processes.
Biočanin Vladimir   +8 more
doaj   +1 more source

Modeling the viscosity of silicate melts containing manganese oxide [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2013
Our recently developed model for the viscosity of silicate melts is applied to describe and predict the viscosities of oxide melts containing manganese oxide.
Kim Wan-Yi   +4 more
doaj   +1 more source

The Effect of Silicate Ions on the Separation of Lithium From Geothermal Fluid

open access: yesFrontiers in Chemical Engineering, 2022
In an enhanced geothermal system (EGS), geothermal energy in rocks with insufficient permeability or fluid saturation can be used by creating artificial geothermal reservoirs.
Junbeum Lee   +3 more
doaj   +1 more source

INFLUENCE OF THE SIZE OF TOURMALINE PARTICLES APPLIED ON POLYESTER FABRIC ON THE RELEASE OF NEGATIVE IONS [PDF]

open access: yesAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2020
There are some scientific papers that verify that the generation of negative ions in the air have positive consequences on people’s mood and health. In this work is intended to increase the generation of negative ions from polyester fabrics to achieve ...
MIRA Cristina   +4 more
doaj  

Sand-lime bricks with addition of basalt powder [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2019
The purpose of the work is to modify traditional lime-sand products with the addition of basalt dust. It is to improve the physical and mechanical parameters of the material.
Paulina Kostrzewa
doaj   +1 more source

Modification of fibrous silicates surfaces with organic derivatives: An infrared spectroscopic study

open access: yes, 2006
This contribution explores the interaction of the fibrous silicates, palygorskite, sepiolite and chrysotile with a wide range of organic agents. Infrared spectroscopy (IR) methods are essential for the characterization of solid surfaces and for the ...
Mendelovici, Efrain, Frost, Ray L.
core   +1 more source

Home - About - Disclaimer - Privacy