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 303 for “"dipolar"”.
-
Magnetodynamic Dipolar Ferrite Modes
Made available in DSpace on 2014-12-04T21:03:14Z (GMT). No. of bitstreams: 1 6001693.pdf: 2285935 bytes, checksum: e95434be6a856b912e40567fd2a554eb (MD5) Previous issue date: 1960
-
Elastic and inelastic dipolar scattering
… rapid losses, the experiment cannot succeed. The dipolar interaction has many features making it attractive in the physicist toolbox. Molecules usually feature strong dipolar interactions, but we use dysprosium which is still the most magnetic atom and is easier to manipulate than molecules. …
-
Non-equilibrium self-assembly processes of complex dipolar colloids
This work investigates the influence of induced dipolar interactions on the non-equilibrium structure formation in quasi-two dimensional colloidal systems. On the one hand, theoretical models for certain experimentally realized systems are developed and investigated by means of Brownian Dynamics …
-
Interacción dipolar magnética en cintas nanocristalinas de base cobalto
… desplazamiento se ha atribuido a la interacción dipolar entre las fases magnéticamente blanda (matriz amorfa) y dura (cristales embebidos en la matriz amorfa). Basándonos en este modelo se han simulado numéricamente la forma de los ciclos y la evolución de sus principales características con los …
-
Experimental Platform for a Box-Trapped Dipolar Quantum Gas
… investigating many-body physics in homogeneous dipolar quantum gases of erbium. The interest in such systems lies in a multitude of quantum phenomena that stem from dipole-dipole interactions, particularly their long-range and anisotropic nature. Consequentially, dipolar quantum gases make up an …
-
Interfacial Electronic Structure of Dipolar Vanadyl Naphthalocyanine Thin Films
The studies presented in this work are aimed towards a better understanding of the fundamental physics of the electrode/organic molecule interface in both the ground and excited state manifolds. Systematic investigations of single systems using two-photon photoemission (TPPE) and ultraviolet …
-
An ultracold gas of dipolar fermionic ²³Na⁴⁰K molecules
… thesis, I present my work on creating ultracold dipolar molecules of ²³Na⁴⁰K in the singlet rovibrational ground state. These fermionic molecules have a large permanent electric dipole moment of 2.72 Debye, and are chemically stable against inelastic dimer-dimer reactions. A quantum gas of these …
-
Coherent control of dipolar coupled spins in large Hilbert spaces
Controlling the dynamics of a dipolar-coupled spin system is critical to the development of solid-state spin-based quantum information processors. Such control remains challenging, as every spin is coupled to a large number of surrounding spins. In this thesis, we primarily focus on developing …
-
Dipolar recoupling and decoupling in solid state nuclear magnetic resonance spectroscopy
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1995.
-
Interfacial Nitrone 1,3-Dipolar Cycloadditions for Modification of Monolayer Protected Gold Nanoparticles
… as a template and its ability to undergo the 1,3-dipolar cycloaddition reaction with a series of nitrones under ambient and high-pressure conditions. Expanding the scope of this reaction to the investigation in synthesizing a nitrone modified-MPN and examine its ability to undergo the 1,3-dipolar …
-
Site-Specific Labelling of Nucleic Acids by Catalyst-Free 1,3-Dipolar Cycloadditions
… labelling of nucleic acids by catalyst-free 1,3-dipolar cycloaddition reactions. Both nitrile oxide-alkyne cycloadditions (NOAC) and strain-promoted azide-alkyne cycloadditions (SPAAC) were explored. The possiblitity for ‘pre-synthetic’ functionalisation was demonstrated using non-nucleosidic …
-
Dipolar Shielding and Sub-wavelength Bilayers in a Quantum Gas of Dysprosium
In our paper Can the Dipolar Interaction Suppress Dipolar Relaxation?, by using magnetic dysprosium atoms and an optical lattice we engineered the dipolar suppression of dipolar relaxation in an ultra-cold gas prepared in an excited Zeeman level. The atoms were confined to ultra-thin layers, with …
-
Super-resolution Control of Ultracold Dipolar Atoms on a 50-nm Scale
… the interaction, and the dynamics of ultracold dipolar gases. In the first experiment, we introduce a super-resolution control scheme using a spin-dependent optical potential that localizes Dy atoms on a sub-50 nm scale, a distance that is more than 10 times shorter than the optical wavelength. …
-
Dynafold: A Dynamic Programming Approach to Protein Structure Calculation From Residual Dipolar Couplings
… A new type of NMR restraint, residual dipolar couplings (RDCs), has shown promise as a source of data for large classes of proteins including transmembrane proteins.</p> <p>To date, most methods of utilizing residual dipolar couplings as structural re- straints have centered around …
-
Synthesis Towards Fulminic Acid and Its Derivatives in 1, 3-Dipolar Cycloaddition Reactions.
… 1, 3-diploar cycloaddition reactions with dipolarophiles to form isoxazolines and/or its dimers. This procedure represents a novel, safe general method for the one-step generation of fulminic acid, which complements existing potentially explosive protocols.</p>
-
The dehydrochlorination of 1,1-diaryl-2,2,2-trichloroethanes in protic and dipolar aprotic solvents
… states for elimination by weak bases in dipolar aprotic solvents are described. PART II The use of primary deuterium isotope effects: structure-reactivity relationships, and rate-acidity correlations as mechanistic criteria for the E2 mechanism and the variants of the E1cB mechanism is …
-
NMR STRUCTURAL INVESTIGATIONS OF AQUATIC HUMIC SUBSTANCES (PYRAZOLINE, 1,3-DIPOLAR ADDITION, NITROGEN-15).
… also studied. A ¹⁵N NMR investigation of the 1,3 dipolar addition of diazomethane to a soil fulvic acid led to the tentative conclusion that the cycloadduct was an N-methyl pyrazoline. Evidence is presented that carbon methylation occurs to a large extent during the CH₃I/NaH step. The …
-
From Growth to Electronic Structure of Dipolar Organic Semiconductors on Coinage Metal Surfaces
… structure and thin film growth of two types of dipolar organic semiconductors on noble metals by employing a surface science approach, which underlines the critical role of surface electronic states in determining the interfacial electronic structure and self-assembly of organic semiconductors. …
-
Chiral macromolecules bearing configurationally ordered dipolar functional groups: Molecular design, synthesis and phases
… relationship between configurational order among dipolar functional groups bound to a semirigid polymer backbone and the nature of the condensed phases of these materials. The investigation first involved the synthesis of a family of macromolecules designed to address this relationship. The parent …
Page 1 of 16