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.
Results
Showing 1 to 20 of 65 for “"Vitrification"”.
-
Design of Vitrification Machine
… of living cells and biological material by vitrification requires the expertise of a skilled lab technician and a large amount of time. Vitrification must be performed one sample at a time on tiny subjects, which makes for a tedious and unreliable process. Moreover, there is a lack of …
-
Vitrification of Bovine Oocytes
… sucrose in phosphate buffered saline (PBS) for vitrification on nylon mesh and plunged into liquid nitrogen. Warming resulted in 81.7% morphological survival. The rate of blastocyst formation was 59.9% for vitrified zygotes but, this was significantly lower than that of non vitrified embryos …
-
An Improvement to Low-Level Radiioactive Waste Vitrification Processes
Made available in DSpace on 2017-07-06T18:48:33Z (GMT). No. of bitstreams: 2 Horton_Walter_S_MS.pdf: 32805361 bytes, checksum: e3601218a7f508eb88eedbfacea807c6 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1986
-
Amorphization and De-vitrification in Immiscible Copper-Niobium Alloy Thin Films
… supersaturated crystalline phases. The devitrification of the immiscible Cu-Nb thin film of composition Cu-45% Nb has been studied in detail with the discussion on the mechanism of phase transformation. The initial phase separation in the amorphous condition seems to play a vital role in …
-
Optimization of conditions for vitrification of aqueous solutions of relevance to cryobiology
… vitrified state. To optimize the probability of vitrification, current approaches were modified. Different cooling methods were investigated. Containers called cryostraws were crafted from six different materials, materials with different thermal conductivity properties; all straws were of …
-
Compositional Exploration and Microstructural- Environmental Evaluation of Alloys for Glass Vitrification Applications
… of alternative alloys for high-temperature glass vitrification, with the aim of improving the durability of Co-101 alloy spinners used in glass mineral wool production. These components operate under aggressive thermal and chemical conditions that accelerate oxidation and corrosion, limiting …
-
A Study of Cobalt-Based Superalloys for High-Temperature Glass Vitrification Applications
The contents of this thesis are concerned with the industrial manufacturing process of glass mineral wool insulation. The process converts the molten glass into a wool product by a spinning the glass at high temperatures using a critical spinner component. The component, manufactured from the …
-
The Effect of Embryo Biopsy and Vitrification on the Development Potential of Equine Embryos
… of equine embryos in vitro after biopsy and vitrification. Twenty embryos were obtained from Quarter Horse, Thoroughbred, and mix-breed light mares between three and ten years old. The twenty embryos were divided into a biopsy (n=10) and control group (n=10). The biopsy group underwent …
-
Self-Consistent Phonon Theory of Aperiodic Solids and Density Functional Theories of Freezing and Vitrification
We extend Fixman's self-consistent phonon theory of the thermodynamic properties and fluctuations of the hard sphere crystal to an amorphous lattice. In doing so, we develop a theory of lattice vibrations in amorphous materials via a perturbation theory around the Einstein oscillator approximation. …
-
Plant regeneration in vitro, characterization and control of vitrification, and somaclonal variation in onion (Allium cepa L.)
Restriction data tranferred 2014-07-01T11:32:03-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
-
Structure and properties of iron phosphate glasses: A novel host matrix for the vitrification of high-level nuclear wastes
<p>"The atomic structure, glass forming and crystallization characteristics, and the chemical durability of vitreous binary iron phosphates of approximate batch composition 40Fe<sub>2</sub>O<sub>3</sub>-60P<sub>2</sub>O<sub>5</sub> (mol%) and those containing up to 40 wt% of one or more common …
-
OVARIAN TISSUE BANKING IN ANIMAL MODELS
… and endocrine functions of the gonad. Vitrification has been argued as a superior cryopreservation technique for ovarian tissue fragments because of its desirable output, simplicity and suitability in the field. However, as with any cryopreservation technique, vitrification is …
-
Development of an automated microfluidic system for the loading and unloading of cryoprotectants from mammalian oocytes
… gold standard in oocyte cryopreservation, manual vitrification, is a technically challenging procedure that's success is strongly dependent on the experience, training, and attentiveness of the operator. In this thesis, the development of an automated platform for the introduction and removal of …
-
Aspects of amidization of chitosan
… behavior is explained with the influence of vitrification on chain mobility. In situ DMTA was found to be a suitable technique for monitoring the phase transformation of chitosonium acetate and chitosonium propionate from a rubbery to a glassy phase (vitrification). Consequently, the concept …
-
Dynamic Light Scattering Study of Structural Effects on the Dynamics of Potassium Borate Glass
… and later solidify in a process known as vitrification, or the glass transition. It is commonly believed that intermolecular bonds are responsible for the vitrification of glass-forming liquids. In Particular, oxide glass-formers possess strong covalent bonds that connect different …
-
Development of Optimal Electromagnetic Resonance Rewarming Technology for Cryopreservation
… remain a certain fraction of ice crystals or vitrification which aims to exclude ice crystal in the subzero temperature range completely, the rewarming rapidity plays a significant role in the recovery of the biological materials after cryopreservation. Additionally, for larger materials such …
-
Thermodynamic Investigation of the Interaction between Polymer and Gases
… of CO2 in PS melt. The phenomenon of retrograde vitrification in PMMA induced due dissolution of CO2 was investigated in light of the thermodynamic properties resulting from the interaction of polymer and blowing agent. Solubility and volume swelling were measured in the pressure and temperature …
-
Fertility preservation of ovarian germ cells: the horse and deer models
… were used to compare slow-freezing versus vitrification; and to determine the best cryoprotective agents for each cryopreservation method. In study four, white-tailed deer reproductive tracts were used to characterize the age effect on reproductive features. In study five, white-tailed deer …
Page 1 of 4