Mechanical relaxation in polyethylene crystallized with various degrees of lamellar orientation
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چکیده
منابع مشابه
Physico-mechanical and dissolution behaviours of ibuprofen crystals crystallized in the presence of various additives
BACKGROUND AND THE PURPOSE OF THE STUDY The success of any direct-tableting procedure is strongly affected by the quality of the crystals used in the process. Ibuprofen is a poorly compactible drug with a high tendency for capping. In order to use ibuprofen in direct compression formulations, physico-mechanical properties of ibuprofen should be improved considerably. The aim of the present inve...
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– We study the relaxation modes of an interface between a lyotropic lamellar phase and a gas or a simple liquid. The relaxation is found to be qualitatively different from those of both simple liquids and single-component smectic-A liquid crystals. It is governed by a non-inertial, diffusive mode whose decay rate increases quadratically with wavenumber, |ω| = Aq. The coefficient A depends on th...
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The pharmacokinetics of cefsulodin were characterized in 19 patients with different degrees of renal function after a single 500-mg, 30-min intravenous infusion. Six subjects had a creatinine clearance (Clcr) of greater than 100 ml min-1 (group I), eight had a Clcr of between 12 and 42 ml min-1 (group II), and five had a Clcr of less than 10 ml min-1 (group III). Nine plasma and four urine samp...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry
سال: 1966
ISSN: 0022-4332
DOI: 10.6028/jres.070a.019