Results 61 to 70 of about 936,316 (178)

Composition and Dissolution of a Migratory, Weathered Coal Tar Creosote DNAPL

open access: yesFrontiers in Environmental Science, 2016
Opaque, viscous tars derived from the carbonization of fossile carbon feedstocks, such coal tars and creosote, are long-term sources of groundwater contamination, predominantly with poly- and heterocyclic aromatic hydrocarbons (PAH).
Kerstin E. Scherr   +4 more
doaj   +1 more source

Improved Dissolution and Pharmacokinetics of Abiraterone through KinetiSol® Enabled Amorphous Solid Dispersions

open access: yesPharmaceutics, 2020
Abiraterone is a poorly water-soluble drug. It has a high melting point and limited solubility in organic solvents, making it difficult to formulate as an amorphous solid dispersion (ASD) with conventional technologies.
Urvi Gala   +2 more
doaj   +1 more source

Hydrous Manganese Oxide Doped Gel Probe Sampler for Measuring In Situ Reductive Dissolution Rates. 2. Field Deployment [PDF]

open access: yes, 2010
In situ rates of reductive dissolution in submerged shoreline sediments at Lake Tegel (Berlin, Germany) were measured with a novel hydrous manganese (Mn) oxide-doped gel probe sampler in concert with equilibrium gel probe and sequential extraction ...
Farnsworth, Claire E.   +3 more
core   +2 more sources

Vacuum Brazing Ti–15–3 with a TiNiNb Braze Alloy

open access: yesMetals, 2019
Among all types of brazing fillers, Ti-based fillers show satisfactory joint strengths in brazing titanium alloys. However, the major concern in using such fillers is the formation of Cu/Ni/Ti intermetallic compound(s) in the joint.
Chuan-Sheng Kao   +3 more
doaj   +1 more source

Roche volume filling and the dissolution of open star clusters

open access: yes, 2015
From direct N-body simulations we find that the dynamical evolution of star clusters is strongly influenced by the Roche volume filling factor. We present a parameter study of the dissolution of open star clusters with different Roche volume filling ...
Berczik, P.   +3 more
core   +1 more source

Changes in dissolved iron deposition to the oceans driven by human activity: a 3-D global modelling study [PDF]

open access: yes, 2015
The global atmospheric iron (Fe) cycle is parameterized in the global 3-D chemical transport model TM4-ECPL to simulate the proton- and the organic ligand-promoted mineral-Fe dissolution as well as the aqueous-phase photochemical reactions between the ...
Baker, Alex   +5 more
core   +2 more sources

Measurement of the pure dissolution rate constant of a mineral in water

open access: yes, 2008
We present here a methodology, using holographic interferometry, enabling to measure the pure surface reaction rate constant of the dissolution of a mineral in water, unambiguously free from the influence of mass transport.
Colombani, Jean
core   +2 more sources

Comparative dissolution studies on granules with acetaminophen and caffeine using the basket and paddle methods with simultaneous spectrophotometric determination of active substances

open access: yesCurrent Issues in Pharmacy and Medical Sciences, 2019
Acetaminophen and caffeine, popular therapeutic substances used to relieve pain or alleviate the symptoms of cold. The aims of the study were the comparison of granules, in terms of dissolution rate and moreover the development of spectrophotometric ...
Szumilo Michal   +4 more
doaj   +1 more source

The dissolution and solid-state behaviours of coground ibuprofen–glucosamine HCl [PDF]

open access: yes, 2014
The cogrinding technique is one of most effective methods for improving the dissolution of poorly water-soluble drugs and it is superior to other approaches from an economical as well as an environmental standpoint, as the technique does not require any ...
Ali Nokhodchi   +8 more
core   +1 more source

Road and bridge construction across gypsum karst in England [PDF]

open access: yes, 2002
Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence ...
Anthony H Cooper   +20 more
core   +2 more sources

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