Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1644 for “"dissolution"”.
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Dissolution of disintegrating solid dosage forms in a modified dissolution testing apparatus 2
Dissolution tests are routinely carried out in the pharmaceutical industry to determine the dissolution rate of solid dosage forms. Dissolution testing serves as a surrogate for drug bioavailability through in vitro-in vivo correlation (IVIVR), and it additionally helps in guiding the development …
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Hydrodynamics, dissolution, and mass transfer effects in different dissolution testing apparatuses and laboratory systems
Dissolution testing apparatuses and shaker flasks agitated by shaker tables are laboratory systems routinely found in many laboratories at most companies and agencies, and especially in pharmaceutical companies. These devices are commonly used in a number of applications, from drug development to …
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Modeling Dissolution in Aluminum Alloys
… physical models for the kinetics of particle dissolution are necessary to predict the most efficient thermal treatment. A general dissolution model for multi-component alloys has been developed using the front-tracking method to study the dissolution of precipitates in an aluminum alloy …
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Probabilistic models for drug dissolution
… and Inverse Monte-Carlo-based models for drug dissolution. Drug dissolution from different carriers is a complex phenomenon. Limited knowledge is available on some of the underlying constituent processes, which restricts development of mechanistic models. Monte Carlo techniques permit the …
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Economic consequences of family dissolution
… of the dissertation regards the differences in dissolution outcomes between married and cohabiting parents in Germany. The dissertation thus aims to link institutional regulations of welfare states with the actual income situation of families. To achieve this, a research design was developed …
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The dissolution rate of chrysotile
… in lung tissue is simply a result of its dissolution kinetics. The purpose of this study was to estimate the lifetime of a respirable size fiber of chrysotile in lung tissue. The dissolution reaction for chrysotile for pH's less than nine is: Mg₃Si₂O₅(OH)₄ + 6H⁺ = 3Mg²⁺+ 2H₄4SiO₄ + H₂0 …
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The dissolution of urinary calculi
… various organic and inorganic solvents for the dissolution of urinary calculi in vitro and Albright’s (1) citric acid buffer and a solvent designated in this investigation simply as “G” (33) were shown to be the most efficient solvents. Further investigation showed that something was necessary …
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Cellulose fiber dissolution in sodium hydroxide solution at low temperature: dissolution kinetics and solubility improvement
… understanding of the NaOH and NaOH/urea dissolution process significantly constrains its applications. In order to fully understand the cellulose dissolution in alkali system, there are several aspects of problems that need to be addressed. Our focus in this study is in the interaction of …
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Crystallization and dissolution of electrolyte salts
Η κρυστάλλωση και η διάλυση αλάτων αποτελούν σημαντικές διεργασίες οι οποίες συνεισφέρουν στην φθορά των μνημείων της πολιτιστικής μας κληρονομιάς, τα οποία έχουν κατά κύριο λόγο κατασκευασθεί από δομικά υλικά όπως ο ασβεστόλιθoς και το μάρμαρο. Η κρυστάλλωση ευδιάλυτων αλάτων (π.χ. θειϊκό νάτριο, …
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Dissolution Behavior of Amorphous Solid Dispersions
… However, the drug solution generated from the dissolution of an ASD formulation is supersaturated. In other words, the solution concentration is higher than the crystalline solubility. These solutions are therefore thermodynamically unstable and can crystallize. Recent evidence suggests that …
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France and the Dissolution of Yugoslavia
… and its response to the federal republic’s dissolution in the 1990s. In doing so it contributes to studies of post-Cold War international politics and international diplomacy during the Yugoslav Wars. It utilises a wide-range of source materials, including: archival documents, interviews, …
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Kinetics based characterization of struvite dissolution
… objective of this work was to characterize the dissolution of field grown struvite from an Ostara Pearl reactor. Dissolution rate constants between 0.94 and 2.61 mm/min were found for field grown struvite using the shrinking object model – a surface area dependent empirical kinetics-based …
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Petroleum coke slags: characterization and dissolution
… and textures, and finally determines the dissolution of vanadium from these slags as part of the considerations of potential resource reclamation. The general identification procedure utilizes (1) recognition of separate phases using optical microscopy and scanning electron microscopy; (2) …
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Dissolution of different commercial aspirin tablets using a novel off-center paddle impeller (OPI) dissolution testing system
Dissolution testing is routinely conducted in the pharmaceutical industry to provide in vitro drug release information for quality control purposes. The most common dissolution testing system for solid dosage forms is the United States Pharmacopeia (USP) Dissolution Testing Apparatus 2. In this …
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Effects of Permian evaporite dissolution in Kansas
Digitized by Kansas Correctional Industries
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Effects of Permian evaporite dissolution in Kansas
Digitized by Kansas Correctional Industries
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The disintegration and dissolution of urinary calculi
… and hyaluronidase as aides in the :in vitro" dissolution of calculi in "G"⁷ solution. This investigation indicated that a more effective solvent was needed.
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