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 805 for “"Energy transfer"”.
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Energy transfer from wind to waves
… rate function is necessary to determine the energy transfer from wind to waves. Analytically, the growth rate function is determined from the Phillips model, for which the mean velocity profile over water surface is important. The analytical model of Phillips using logarithmic form of the …
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Energy transfer and localization in molecular crystals
… characterize the response of three unique high energy density molecular crystals to different means of energy input: electric fields of various frequencies (100 − 4000<em>cm</em>−1) and strengths, and direct heating at various rates. It was found that non-equilibrium states can be created for …
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Toward the Understanding of Intramolecular Energy Transfer
Intramolecular electronic energy transfer is intimately related to vibrational energy transfer in many ways, both in the systems studied and in the computational methods employed. Due to the rapid rise of interest in molecular computing, understanding the more complicated electron transfer problems …
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Rotational and vibrational energy transfer in methane
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1988
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An investigation of didactic energy transfer systems
… developed for the freshmen seminar Physics of Energy. The class covers electricity generation and dissipation, and provides experience in analysis and design of electrical and mechanical engineering systems. There was interest in developing a series of new laboratory experiments that would …
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Energy transfer processes in methane and trideuteromethan
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1994.
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Heterogeneous Ultrafast Energy Transfer in Photosynthetic Proteins
… with the absorption and rapid transport of energy through a protein network to reach the reaction center, where conversion to chemical energy occurs. The energy transport is facilitated through a series of energy transfer events between pigments bound to a protein backbone. These steps …
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Vibrational energy transfer in condensed high explosives: Nitromethane
Molecular mechanical energy transfer in energetical materials is investigated because of the likely possibility of a relationship between energy transfer rates and impact sensitivities. Picosecond coherent Raman scattering, and anti-Stokes Raman spectroscopy following an ultrafast temperature and …
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Simulating energy transfer between nanocrystals and organic semiconductors
Recent trends in renewable energy made silicon based photovoltaics the undisputed leader. Therefore, technologies that enhance, instead of compete with, silicon based solar cells are desirable. One such technology is the use of organic semiconductors and noncrystalline semiconductors for photon up- …
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Probing extraordinary nanoscale energy transfer using bimaterial microcantilevers
… drawn a great deal of attention in the field of energy research such as for solar photovoltaic, thermophotovoltaic and thermoelectric applications. The energy transport properties of nanostructures can differ greatly from their bulk counterparts because the characteristic dimensions of …
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Nonlinear Effects in Contactless Ultrasound Energy Transfer Systems
Ultrasound acoustic energy transfer (UAET) is an emerging contactless technology that offers the capability to safely and efficiently power sensors and devices while eliminating the need to replace batteries, which is of interest in many applications. It has been proposed to recharge and …
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Fluorescence Resonance Energy Transfer (FRET) Based Sensors for Bioanalysis
… and sensors based on fluorescence resonance energy transfer (FRET) for bioanalysis. Chapter 3 describes the use of FRET between donor fluorophores and acceptor labeled murine macrophage cells. FRET microscopy was used to determine whether the donor molecules truly permeate through the cell …
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Nanoparticle Biofunctionalization for Self-Assembly and Energy Transfer Applications
… This work takes advantage of both phase transfer routes to functionalize gold nanoparticles (AuNPs), quantum dots (QDs), and quantum rods (QRs) with DNA and proteins for self-assembly, energy transfer and drug delivery applications.</p> <p>In the first project, we explored the ability to …
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Electronic Energy Transfer in Conjugated Organic Dendrimers and Polymers
"This study examines energy transfer in phenylacetylene (PA) dendrimers and the conjugated polymer poly(2-methoxy 5-[2'-ethylhexyloxy]-p-phenylene vinylene) (MEH-PPV). The fundamental absorbing and emitting chromophores in the PA dendrimers are elucidated via steady-state and time-resolved …
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Infrared Studies of Intramolecular Rovibrational Relaxation (Kinetics, Energy Transfer)
… dimethyl ether and 1,4 dioxane indicate that the energy distribution within each molecule is dependent upon the CH stretch that is excited. The fluctuations in the relaxed mode energy content with excitation energy can be fit by a statistical model which assumes coupling to all rovibrational …
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Classical Rotational-Translational Energy Transfer Using Variation of Constants
Made available in DSpace on 2014-12-09T17:36:00Z (GMT). No. of bitstreams: 1 6812095.pdf: 4972299 bytes, checksum: 27e51ad15e95db5c7ca89308f6206d92 (MD5) Previous issue date: 1968
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Energy Transfer Attending Collisions of Atoms With Diatomic Molecules
Made available in DSpace on 2014-12-05T19:38:20Z (GMT). No. of bitstreams: 1 6402903.pdf: 3173242 bytes, checksum: 13d114e1590f4a24199309de78fb446d (MD5) Previous issue date: 1963
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High-performance power converters leveraging capacitor-based energy transfer
… are used in the voltage conversion and power transfer process. Conventional capacitor-based converters, called switched-capacitor (SC) converters, suffer from poor efficiency due to the inevitable charge redistribution process. With a strategic placement of one or more inductors, the charge …
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Nanocrystal/J-aggregate constructs : chemistry, energy transfer, and applications
… aggregate structure while achieving favorable energy transfer. This challenge is the subject of Chapters 2 and 3, in which new ligand chemistry was developed to achieve near-unity energy transfer efficiency from the J-aggregates to the nanocrystal quantum dots in solution (Ch. 2) and in a solid …
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