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Tuesday, August 4, 2020 | History

2 edition of study of anisotropic systems using pulsed nuclear magnetic resonance. found in the catalog.

study of anisotropic systems using pulsed nuclear magnetic resonance.

Satapah Bin Ahmad

study of anisotropic systems using pulsed nuclear magnetic resonance.

by Satapah Bin Ahmad

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  • 13 Currently reading

Published by University of East Anglia in Norwich .
Written in English


Edition Notes

Thesis (Ph.D.) - University of East Anglia, School of Chemical Sciences, 1978.

ID Numbers
Open LibraryOL13845763M

The pulsed field gradient stimulated echo NMR technique is applied to the study of water diffusion in biological porous materials (a sheet of wood cellulose fibers and a packed bed of potato starch granules) consisting of randomly oriented domains with an anisotropic supermolecular organization. Expressions are presented for the probability distribution of apparent diffusion coefficients due Cited by: The diffusion coefficient (D) of 2,3-bisphosphoglycerate (DPG) was measured using pulsed-field gradient (PFG)P nuclear magnetic resonance spectroscopy in solutions containing mM hemoglobin (Hb) and a range of DPG rangelyautomuseum.com by:

Jun 01,  · INTRODUCTION. Zero-field nuclear magnetic resonance (NMR) is an alternative magnetic resonance modality in which nuclear spin information is measured in the absence of applied magnetic field (1–5) and serves as a complementary analysis tool to conventional high-field rangelyautomuseum.com-field NMR experiments regularly achieve nuclear spin coherence times longer than 10 s without using Cited by: Nuclear magnetic resonance (NMR) is a spec-troscopic technique that detects the energy ab-sorbed by changes in the nuclear spin state. The application of NMR spectroscopy to the study of proteins and nucleic acids has provided unique in-formation on the dynamics and chemical kinetics of these systems. One important feature of NMR.

Moisture measurements using a pulsed nuclear magnetic resonance technique were initiated to support a detonator corrosion investigation. Results using this technique led to process changes which decreased corrosion rates. This technique is presently used routinely to monitor production samples and aid in process development of new materials. 1 Nuclear Magnetic Resonance Before describing how Nuclear Magnetic Resonance (NMR) techniques can be used to implement quantum computation I will begin by outlining the basics of NMR. Introduction Nuclear Magnetic Resonance (NMR) is the study of the direct transitions between the Zeeman levels of an atomic nucleus in a magnetic field [1–7].


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Study of anisotropic systems using pulsed nuclear magnetic resonance by Satapah Bin Ahmad Download PDF EPUB FB2

Nuclear magnetic resonance studies of translational diffusion in thermotropic ionic liquid crystals Diffusion experiments in anisotropic systems with broad NMR lines are performed using line narrowing techniques and by application of strong static or pulsed field gradients for efficient gradient encoding/decoding of the spatial locations ofAuthor: Sergey V.

Dvinskikh. Pulsed-field-gradient nuclear magnetic resonance (NMR) combined with magic echo decoupling is applied to study anisotropic diffusion in samples with strong static dipolar spin interactions.

Nuclear magnetic resonance (NMR) provides a convenient probe for the study of molecular motion in liquids, since the nuclear spin relaxation time is dependent on the exact details of the molecular diffusion.

The dipoledipole relaxation mechanism, for example, depends on the interaction of one nuclear magnetic dipole with rangelyautomuseum.com by: Sodium NMR/MRI for anisotropic systems. This book is about pulse nuclear magnetic resonance (NMR), with its techniques, the information to be obtained, and practical advice on performing.

Pulsed Nuclear Magnetic Resonance An Experiment for UCSB’s Advanced Laboratory Foreword Pulsed nuclear magnetic resonance is fascinating in its own right, and is also an incredibly important tool for investigating microscopic dynamical properties of condensed matter, determining the structure of molecules, imaging soft tissues and blood.

Because nuclear magnetic resonance (NMR) measurements can sensitively examine the local electronic structures and spin dynamics, using nuclear spins as a probe, we adopt the 11B nuclear spin (as the second nearest neighbor of the Dy +3 4f moments) to study the local electronic and magnetic structures of DyNi 2B rangelyautomuseum.com: Se-Geun Kwon, Kihyeok Kang, Moohee Lee, Beongki Cho.

Nuclear magnetic resonance: a powerful tool to study liquid crystals. in anisotropic systems, the different terms Englert G. High-resolution nuclear rangelyautomuseum.com: Valentina Domenici. chemical and biochemical systems. Pulsed-field gradient nuclear magnetic resonance pro-vides a convenient and noninvasive means for measuring translational motion.

In this method the attenuation of the echo signal from a Hahn spin-echo pulse sequence contain-ing a magnetic field gradient pulse in each t period is used to measure the.

Nuclear magnetic resonance (NMR) is one of the methods used to study liposome properties. The abilities of the method are the high sensitivity and high resolution.

Moreover, it provides information about dynamics and structure of molecules. 1H and 31P NMR are most convenient methods to study liposomes, because liposomes are typically formed from rangelyautomuseum.com: Anna Timoszyk. The diffusion of water in randomly oriented lamellae of Aerosol OT (AOT)/water solutions has been measured by using the pulsed field gradient nuclear magnetic resonance (PFG NMR) method.

Nuclear magnetic resonance (NMR) is a powerful tool in studying the structure and dynamics of chemical and biochemical systems. This chapter reviews some basic aspects of the application of NMR to the study of water interactions with proteins, biomolecules, membranes, and rangelyautomuseum.com by: THE NUCLEAR MAGNETIC RESONANCE EXPERIMENT Pulsed Nuclear Magnetic Resonance Fourier Transform Nuclear Magnetic Resonance elucidation of the system under study.

Although there may be thresholds of knowledge of NMR The nuclear magnetic resonance phenomenon can be described in a nutshell as follows. If a sample. Nuclear Magnetic Resonance Imaging is best known for its spectacular use in medical tomography.

However the method has potential applications in biology, materials science, and chemical physics, some of which have begun to be realized as laboratory NRM /5(2). The anisotropic diffusion of water in chive (Allium schoenoprasum) tissues has been investigated using two-dimensional nuclear magnetic resonance methods: diffusion-diffusion correlation.

Solid-state NMR for the study of membrane systems: The use of anisotropic interactions Abstract. The use of solid-state nuclear magnetic resonance (NMR) as a tool to determine the structure of membrane molecules is reviewed with a particular emphasis on techniques that provide information on orientation or order.

80, Soci6t6 Cited by: Jul 08,  · Measuring Microscopic Anisotropy with Diffusion Magnetic Resonance: From Material Science to Biomedical Imaging Callaghan, P.T., Söderman, O.: Examination of the lamellar phase of aerosol OT/water using pulsed field gradient nuclear magnetic resonance.

Phys. Use of spin echoes in a pulsed magnetic-field gradient to study anisotropic Cited by: 1. The nuclear magnetic resonance (NMR) technique applied to biological systems is a powerful tool for structural determination and dynamics of both small organic molecules and biopolymers.

The dynamic aspects and inherent flexibility play a central role in the facets of biological functionality [1,2].

Aug 20,  · The first clinical magnetic resonance images were produced in Nottingham and Aberdeen inand magnetic resonance imaging (MRI) is now a widely available, powerful clinical tool. 3, 4 This article covers a brief synopsis of basic principles in MRI, followed by an overview of current applications in medical rangelyautomuseum.com by: Oct 01,  · The anisotropic diffusion of water in chive (Allium schoenoprasum) tissues has been investigated using two-dimensional nuclear magnetic resonance methods: diffusion-diffusion correlation spectroscopy and diffusion-relaxation correlation rangelyautomuseum.com by: Pulsed electron nuclear double resonance (ENDOR) was invented in by Mims.

In this experiment, pulsed NMR transitions are detected with pulsed EPR. ESEEM and pulsed ENDOR continue to be important for studying nuclear spins coupled to electron spins.

Aug 11,  · Study of the variation of thermal conductivity with water saturation using nuclear magnetic resonance. Rachel Jorand. E-mail address: Pulsed NMR measures the magnetization and transverse relaxation time, however a similar study with anisotropic samples is more difficult.

The NMR measurements yield the total porosity, and this method Cited by: Over the past fifty years nuclear magnetic resonance spectroscopy, commonly referred to as nmr, has become the preeminent technique for determining the structure of organic compounds.

Of all the spectroscopic methods, it is the only one for which a complete analysis and interpretation of the entire spectrum is normally expected.Solid-state NMR (ssNMR) spectroscopy is a special type of nuclear magnetic resonance (NMR) spectroscopy, characterized by the presence of anisotropic (directionally dependent) interactions.

Compared to the more common solution NMR spectroscopy, ssNMR usually requires additional hardware for high-power radio-frequency irradiation and magic-angle spinning.