Now showing items 271-290 of 555

    • Nanoparticle-regulated phase behavior of ordered block copolymers 

      Thompson, R.B.; Gaines, Michelle K.; Smith, Steven D.; Samseth, Jon; Bockstaller, Michael R.; Rasmussen, Kim; Spontak, Richard J. (RSC publishing, 2008-06-30)
      Although block copolymer motifs have received considerable attention as supramolecular templates for inorganic nanoparticles, experimental observations of a nanostructured diblock copolymer containing inorganic ...
    • Nanoscale physics of surfactant gene delivery 

      Henderson, Robert Douglas Evert (University of Waterloo, 2016-01-18)
      Medicine has met a revolution in the expansion of possibilities for therapy based upon synthetic gene delivery. Imagine the ability to correct problems of a genetic origin with a simple drug -- such science fiction fantasies ...
    • Nanoscale quantum transport for quantum information processing 

      Qassemi Maloomeh, Farzad (University of Waterloo, 2013-04-25)
      In this thesis, I study quantum transport of electron (e.g., current and noise) in quantum dots exploring microscopic processes responsible for spin-relaxation in double quantum dots in Pauli spin blockade regime. This is ...
    • Nanostructures based on cyclic C6 

      Kuzmin, Stanislav (University of Waterloo, 2013-05-24)
      The properties of a new family of carbon structures based on stacked cyclic C6 rings and intercalated cyclic C6 structures: (C6)n and (C6)nMen-1 have been studied theoretically using ab initio DFT (Density Functional ...
    • Nematic ordering of wormlike polymers 

      Yuan, Xiangqun (University of Waterloo, 2005)
      In this thesis, based on the Onsager excluded volume interaction model, two nematic ordering problems of wormlike (semiflexible) polymer are studied: one is to investigate the isotropic-nematic interface of polymers for ...
    • Neutron interferometer crystallographic imperfections and gravitationally induced quantum interference measurements 

      Heacock, Benjamin; Arif, Muhammad; Haun, Robert; Huber, Michael G.; Pushin, Dimitry A.; Young, Albert R. (American Physical Society, 2017-01-25)
      Dynamical diffraction leads to an interesting, unavoidable set of interference effects for neutron interferometers. This experiment studies the interference signal from two and three successive Bragg diffractions in the ...
    • Neutron interferometric measurement of the scattering length difference between the triplet and singlet states of n-He-3 

      Huber, Michael G.; Arif, Muhammad; Chen, Wangchun C.; Gentile, Thomas R.; Hussey, Daniel S.; Black, Timothy C.; Pushin, Dimitry A.; Shahi, Chandra B.; Wietfeldt, Fred E.; Yang, Liang (American Physical Society, 2014-12-15)
      We report a determination of the n-He-3 scattering length difference = b = = b = 1 -b = 0 = [-5.411 = 0.031 (statistical) = 0.039 (systematic)] fm between the triplet and singlet states using a neutron interferometer. This ...
    • Neutron Interferometry at the National Institute of Standards and Technology 

      Pushin, Dimitry A.; Huber, Michael G.; Arif, Muhammad; Shahi, Chandra B.; Nsofini, Joachim; Wood, Christopher J.; Sarenac, Dusan; Cory, David G. (Hindawi, 2015)
      Neutron interferometry has proved to be a very precise technique for measuring the quantum mechanical phase of a neutron caused by a potential energy difference between two spatially separated neutron paths inside ...
    • Neutron limit on the strongly-coupled chameleon field 

      Li, Ke; Arif, Muhammad; Cory, David G.; Haun, Robert; Heacock, Benjamin; Huber, Michael G.; Nsofini, Joachim; Pushin, Dimitry A.; Saggu, Parminder; Sarenac, Dusan; Shahi, Chandra B.; Skavysh, Vladimir; Snow, W. Michael; Young, Albert R. (American Physical Society, 2016-03-11)
      The physical origin of the dark energy that causes the accelerated expansion rate of the Universe is one of the major open questions of cosmology. One set of theories postulates the existence of a self-interacting scalar ...
    • Neutron Stars, the Exotica - From Modifying General Relativity to Strong Magnetic Fields 

      Kamiab, Farbod (University of Waterloo, 2015-12-22)
      The gravitational aether theory is a modification of General Relativity that decouples vacuum energy from gravity, and thus can potentially address the cosmological constant problem. The classical theory is distinguishable ...
    • New methods in quantum error correction and fault-tolerant quantum computing 

      Chamberland, Christopher (University of Waterloo, 2018-10-22)
      Quantum computers have the potential to solve several interesting problems in polynomial time for which no polynomial time classical algorithms have been found. However, one of the major challenges in building quantum ...
    • New Route to Frustration by Quantum Many-Body Effects in the Spin Liquid Pyrochlore Tb$_2$Ti$_2$O$_7$ 

      Molavian Jazi, Hamidreza (University of Waterloo, 2007-05-25)
      In this thesis we investigate the frustrated spin liquid Tb$_2$Ti$_2$O$_7$ theoretically. The low-energy effective Hamiltonian of this compound is derived by integrating out the excited crystal field states. It is ...
    • New Views on the Cosmological Big Bang 

      Gould, Elizabeth (University of Waterloo, 2017-09-20)
      This dissertation is a collection of four different proposals to describe the early universe. Each will draw from insights of different areas of physics to suggest a description which differs from the standard inflationary ...
    • NMR STUDY OF EXCHANGE AND HYDRATION SITE IDENTIFICATION IN MCM-41 

      Hassan, Jamal (University of Waterloo, 2007-01-16)
      Deuteron 1D and 2D NMR spectroscopy was used to study the dynamics of water molecules within the mesoporous material MCM-41. The deuteron spectra show three magnetization components for a sample hydrated to a 0.2 monolayer ...
    • Noise refocusing in a five-blade neutron interferometer 

      Nsofini, Joachim; Sarenac, Dusan; Ghofrani, Kamyar; Huber, Michael G.; Arif, Muhammad; Cory, David G.; Pushin, Dimitry A. (AIP Publishing, 2017-08-07)
      We provide a quantum information description of a proposed five-blade neutron interferometer geometry and show that it is robust against low-frequency mechanical vibrations and dephasing due to the dynamical phase. The ...
    • Non-perturbative approaches to Scattering Amplitudes 

      Gomez Cordova, Lucia (University of Waterloo, 2019-09-26)
      This thesis is devoted to the study of scattering amplitudes using two non-perturbative approaches. In Part I we focus on a particular theory known as N = 4 Super-Yang-Mills in four spacetime dimensions. The scattering ...
    • Nonlinear Behavior of Unstable Black Holes in Anti-de Sitter Spacetimes 

      Bosch Gomez, Pablo (University of Waterloo, 2020-09-25)
      The nonlinear dynamics of black holes is an increasingly relevant topic of which little is known. In this thesis, we study the full nonlinear dynamics of black holes, as well as their linear behavior, and combine them ...
    • Nonlinear Hybrid Plasmonic Waveguides 

      Aldawsari, Sarah (University of Waterloo, 2013-06-20)
      Due to the increased demand for high-operating-speed systems and ultra-compact optical devices, nanophotonic waveguides such as plasmonic waveguides have been a subject of intense interest over the past few years. The ...
    • Novel Approaches to Gravity Scattering Amplitudes 

      Rajabi, Sayeh (University of Waterloo, 2014-03-14)
      Quantum Field Theory (QFT) provides the essential background for formulating the standard model of elementary particles and, moreover, practically all other theories attempting to explore the physical laws of nature at the ...
    • A Novel Combination Therapy of Cisplatin with a Molecular Promoter for Cancer Treatment 

      Zhang, Qinrong (University of Waterloo, 2017-01-25)
      Cisplatin is the first and most widely used platinum-based chemotherapy drug and is the cornerstone agent in treating a broad spectrum of cancers, including ovarian cancer, testicular cancer, cervical cancer, bladder cancer, ...

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