One of the most common methods used to enhance dissolution is the preparation of solid dispersions. Solid dispersions of LOV and silica with different surface areas were prepared. The effects of the type of silica, ratio of drug/silica, incubation period with silica, and the effect of surface ...
0.002% CaO Content (%) 0.002% P2O5 Content (%) 0.001% Other attributes Place of Origin Egypt Brand Name TAS Model Number SS 01 Type Silica Powder Grade Silica Oxide Micro Fine -400 Product Name Silica sand Color White Usage Solar panel sheets, fibre glass, crystal, foundry and so on ...
Two different types of silica oxide were prepared as filler in sulfonated polymers for fuel cell applications operated under water deficient environment. S... SM Park,YW Choi,TH Yang,... - 《Korean Journal of Chemical Engineering》 被引量: 2发表: 2013年 A new sulfonated poly(ether sulfone)...
According to the literature there are basically two types of deleterious reactions. The alkali-silica reaction (ASR), Stanton [1] and the alkali-carbonate reaction (ACR), Katayama [2], Tang Mingshu [3]. Their names are derived from the composition of the rock involved in the reaction, ...
Type Ceramic Parts Application Refractory Model Number QY Brand Name QY Processing Service Moulding Product Name Silica Crucible Color White ivory Use Melting Gold Shape Crucible Product Type Jewelry Casting Tools Application used for platium,gold and alloy melting ...
Among nanomaterials, silica (SiO2) nanoparticles (NPs) have received considerable attention as a possible alternative to conventional insecticides. The insecticidal properties of silica NPs are thought to be due to direct abrasion of the insect cuticle8,9,10or sorption through the cuticular layers2. ...
The distribution of oxygen in silicon melts kept in a 14 " diameter silica crucible of a standard Czochralski puller was measured using an electrochemical ... Gregory,D.,D.,... - 《Nature Reviews Genetics》 被引量: 648发表: 2001年 The Incidences and Evolution of Cytoplasmic Male Killers Tw...
In this work, the silica content of different types of rice grains were measured. Here, we used the heteropoly blue photometric method with a double beam UV–vis spectrophotometer to determine the amount of silicon in rice samples ( n = 7) that were collected in the north of Iran. The ...
With the very dense greywackes, on the other hand, it was not possible to localize the cause of gel formation. However, where there was a high proportion of the aggregate even small quantities of alkali silica gel were sufficient to damage the concrete. The swelling pressures burst the ...
Types The most common type of sand, found in non-tropical coasts and continental areas, is called silica, and usually takes the form of quartz. This type of sand is extremely resistant to weathering due to its chemical composition (SiO2), which makes the grain very hard. ...