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 14 of 14 for “"extremely low temperatures"”.
-
Lattice thermal conductivity of copper alloys below 2 K
… of thermal phonons by conduction electrons below T z 1 K was found to be in good agreement with theory. A resonant interaction appears to exist between the phonons and dislocations at a resonant frequency of ~ 10^11 Hz. Several models of resonating dislocations are examined with respect to …
-
Melt generation in the Earth's mantle at Convergent Plate Margins
… that the forefathers of arc magmas are formed at extremely low temperatures in the mantle wedge at convergent plate margins in the presence of excess H²O or following the breakdown of the hydrous mineral chlorite. A new petrologic model that simulates anhydrous melting of variably metasomatized …
-
Passive, Self-Healable, Dielectric Elastomers for Structural Health Monitoring
… In a setting in which impact repairs can be extremely costly, the implementation of such a technology would not only alert personnel of such an event but would also serve to decrease the cost and time of repairs. This investigation synthesizes an intrinsically self-healing …
-
Two-dimensional superconducting states near zero temperature quantum phase transitions
… found evidence for metallic resistivity down to extremely low temperatures when using either disorder or magnetic field to tune between the superconducting and insulating phases. In this thesis we further investigate the mechanism for the superconductor to insulator transition at zero …
-
Phonon hydrodynamic transport at elevated temperature
… transport was deemed exotic and mattered only at extremely low temperatures. In this work, by combining the theoretical and experimental approach, we successfully predict and confirm the existence of phonon hydrodynamic transport in graphite above 200 K. More specifically, we introduce a …
-
Phonon hydrodynamic transport at elevated temperature
… transport was deemed exotic and mattered only at extremely low temperatures. In this work, by combining the theoretical and experimental approach, we successfully predict and confirm the existence of phonon hydrodynamic transport in graphite above 200 K. More specifically, we introduce a …
-
Tunneling Dynamics of a Bose-Einstein Condensate
… time. Delta-kick cooling is used to achieve the extremely low temperatures required for the tunneling time experiments. A 2.4x reduction in the atomic velocity spread is demonstrated, reducing the rms velocity spread to \SI{0.46(5)}{mm/s}. This corresponds to cooling to an effective temperature …
-
Investigation of Microwave Transducer for Linearity Dependence and Applications in Quantum Networking
… current state-of-art resources must operate at extremely low temperatures. There is an increasing interest in optical fiber transduction to microwave link with superconducting and Si qubits. The quality depends strongly on the characteristics of the photodiode, specifically uni-traveling carrier …
-
The Effects of Low Temperature on Survival of Rabbit Ova
… Artificial insemination has however, only allowed for the wide spread dissemination of germ plasm from the male. If the female germ plasm could also be more easily disseminated through the highly experimental process of ova transfer, then more than the average number of offspring could be …
-
The electrochemical behavior and electronic structure of non- transition metal chelate radical anions
… to the radical ion. These ion radicals are extremely stable, having been kept for many months at room temperature under argon atmosphere. Previous studies have indicated that the dianion radical of the substituted acetylacetonate ligand itself is extremely unstable. It has been trapped at …
-
ENGINEERING STRUCTURE AND PHASE VIA TEMPERATURE MANIPULATION IN THIN FILM OXIDES GROWN BY ALD
… over growth rates, and the ability to deposit at extremely low temperatures. One critical parameter in ALD growth is deposition temperature, which defines the “ALD window”—a temperature range in which ALD growth kinetics hold. Most ALD processes tend to be limited to deposition temperatures of …
-
Novel Cryoprotective agents to improve the quality of cryopreserved mammalian cells
… cryoprotective agents (CPAs) in combination with extremely low temperatures is mandatory for optimum biopreservation. CPAs (e.g., glycerol, trehalose, dimethyl sulphoxide (DMSO)), however, are relatively cytotoxic and compromise biopreserved cell quality. This is usually resultant in oxidative …
-
Failed futures, broken promises, and the prospect of cybernetic immortality: toward an abundant sociological history of cryonic suspension, 1962-1979
… them, at the pronouncement of legal death, to extremely low temperatures (-360◦ F, -196◦ C), which are then controlled and maintained over the long term by liquid nitrogen filled ""cryocapsules."" Cryonics is ultimately motivated by the hope that medicine will at some future point achieve the …
-
Understanding Failure Mechanisms using Multi-Scale Analyses to Improve the Performance of Zinc Metal and Lithium-ion Batteries
… and peak demand shaving require safe and low-cost energy storage systems, thus use of LIBs may not be feasible. One attractive alternative technology is the rechargeable zinc alkaline battery because of its low cost, high energy density, environmental friendliness, inherent safety, and the …