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 791 for “"Tunneling"”.
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Tunneling machines
Senior thesis.
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Optically-Assisted Scanning Tunneling Microscopy
Scanning tunneling microscopy (STM) consistently provides the highest spatial resolution among the scanning probe methods, allowing surfaces to be investigated on the atomic level. With the addition of optical excitation, STM promises to become a powerful technique for single molecule spectroscopy, …
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Tunneling From Metal to Semiconductors
Made available in DSpace on 2015-05-12T17:12:32Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6303256.PDF: 1676433 bytes, checksum: bfec4fd95854de10bb91fa2b736828d0 (MD5) Previous issue date: 1962
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Tunneling in Degenerate Atomic Gases
… and condensed matter. In this thesis, various tunneling effects in both bosonic and fermionic gases are investigated. The first part of this work deals with bosons in different Josephson-type experimental setups. After a brief general introduction we establish, in Chapter 2, a mapping between …
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A microscopic theory of tunneling
"A microscopic theory of impurity-assisted tunneling is constructed in which the current-carrying (extended) eigenstates of the average one electron potential in a tunnel junction are utilized as the basis functions which are mixed by the Hamiltonian associated with the presence of a static or …
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Molecular tunneling in heme proteins
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-27T15:50:04Z No. of bitstreams: 1 1980_reynolds.pdf: 1707453 bytes, checksum: d6a10b7efebee8db106a192f8706c7b8 (MD5)
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Risk analysis for tunneling projects
Tunnel construction is increasing world wide. Although the majority of tunnel construction projects have been completed safely, there have been several incidents that have resulted in delays, cost overruns, and sometimes more significant consequences such as injury and loss of life. To help …
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Simulating scanning tunneling microscope measurements
One of the largest problems in scanning tunneling microscopy design is noise control. It is the burden of the designer to determine if money should be used to build a floating room for vibration isolation or for top-of-the-line preamplifiers that can be placed at low temperatures. This thesis …
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Scanning Tunneling Microscopy with Electrochemical Capabilities
No abstract prepared.
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Tunneling spectroscopy of magnetic tunnel junctions
In this thesis, magnetic tunnel junctions based on MgO barriers have been prepared and investigated. Different aspects were discussed, in order to understand the physical limitations to the TMR ratio of the MTJs and, hence, their performance as a basis of spintronic devices.
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Single Electron Tunneling at Large Conductance
In this dissertation I study electron tunneling in nanofabricated metallic structures. Specifically I consider systems containing metallic tunnel junctions that consist of two metallic electrodes separated by a thin oxide layer. Electrons in the leads are described by Fermi liquid theory and …
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Tunneling spectroscopy in p-type silicon
Tunneling in boron doped p-type silicon metal-semiconductor and metal-insulator-semiconductor tunnel junctions has been studied at low temperatures by measuring the derivatives, di/dV and d2i/dV2, of the current-voltage characteristics as functions of applied bias voltage V. The junctions were …
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Electron tunneling into superconducting mercury films
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-04-13T20:06:53Z No. of bitstreams: 1 1964_bermon.pdf: 5170834 bytes, checksum: 6986e1e14ca14ef33a75d583bd8b04be (MD5)
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A computer model for tunneling costs,
Massachusetts Institute of Technology, Dept. of Civil Engineering. Thesis. 1971. M.S.
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Decision support framework in adaptable tunneling
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1984.
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Reverse HTTP tunneling for firewall traversal
This thesis describes a reverse hypertext tunneling protocol that allows a web browser from outside a firewall to access a web server inside a firewall. Reverse HTTP utilizes pre-existing proxy services to create a transparent and scalable method to tunnel through a firewall. Reverse HTTP provides …
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Representing settlement for soft ground tunneling
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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Updating the "Decision Aids for Tunneling"
The "Decision Aids for Tunneling" (DAT) are a procedure and computer code which can be used to assess uncertainties which are caused by the geologic / geotechnical conditions and from the construction process. In particular the DAT can be used to predict construction costs and time. The computer …
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Tunneling Dynamics of a Bose-Einstein Condensate
… for studying Quantum Mechanical phenomenon like tunneling. This thesis describes progress towards experimentally measuring the time spent by a tunneling particle in the classically forbidden region. A detailed analysis of the experimental requirements to measure the tunneling time is presented …
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