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 18 of 18 for “"NMR-MOUSE"”.
-
Biomedizinische Anwendungen der NMR-MOUSE
… investigations of biological tissues by mobile NMR.One aim of the project was the investigation of anisotropic structures in tendon by a mobile MR probe in order to achieve improvements in the early diagnosis of degeneration in Achilles tendon. Secondly the MR probe was used to detect cancer in …
-
Anwendungen der NMR-MOUSE in Prozesstechnik, Materialforschung und Medizin
With the use of the NMR-MOUSE (Nuclear Magnetic Resonance – Mobile Universal Surface Explorer), a small, mobile magnetic resonance sensor, by which the information typically contained in one pixel of an NMR image, information can be collected either in situ or ex situ. This dissertation reveals new …
-
NMR methods for strongly inhomogeneous magnetic fields : application on elastomers using the NMR-MOUSE
… of this work are related to the methodology of NMR in grossly inhomogeneous fields, especially of the NMR-MOUSE, and its applications in the material science. The results of the investigations can be summarized as follows: 1. An attempt was made to detect high resolution spectra in elastomers by …
-
Entwicklung und Anwendung mobiler NMR-Sonden
… the first part of this thesis the concept of an NMR endoscope for use in medical examinations and minimal invasive interventions has been investigated. An operative NMR endoscope had been developed and test measurements had been performed successfully. The experiments prove that the radial …
-
Neue unilaterale NMR-Sensoren und ihre Anwendung
This dissertation presents a new type of NMR-Sensor called the Bar Magnet-MOUSE. It consists of a simple bar magnet producing the static B0-field of the sensor and an oscillating circuit including a rf-coil to produce the orthogonal B1-field components. The complete history of the development of …
-
Science and history explored by nuclear magnetic resonance
… on keratin fibers is presented. Proton NMR spectroscopy was used for studying the proton exchange in Sulfonated Polyether Ether Ketone proton exchange membranes revealing that the water exchange processes in hydrated SPEEK-silica membranes are more efficient when low concentrations of …
-
Applications of unilateral NMR in nondestructive testing
In general, in NMR spectroscopy a sample is prepared for the NMR measurement, positioned in the magnet, measured, and discarded. But when non-destructiveness of the sample is more important, it becomes important to rely on relaxation analysis at low resolution NMR. If the samples are big in size …
-
Investigation of material properties by NMR in low and high magnetic fields
NMR is a powerful method of investigation with a wide range of applications. Magnetic resonance is used in medicine, the oil industry, food industry, for chemical analysis, quality control in industry and construction, analysis of cultural heritage, and materials science, in particular polymer …
-
Non-destructive characterization of materials by single-sided NMR
NMR is a proved powerful method for the characterization of structure and motion in materials. Compared to other physical investigation methods, NMR provides unique information from a large variety of experiments, showing up in its different shapes as a unique tool for characterization of a large …
-
Dynamic spatially resolved unilateral NMR measurements of liquid ingress and vapour adsorption and desorption in heterogeneous layered fabrics
… carbons, monitored by means of a unilateral NMR instrument. The aim of this work is to assess protective materials which prevent toxic liquid ingress and toxic vapour uptake from contaminating materials and personnel. A high performance fabric made of a combination of coated and not coated …
-
Mobile NMR for rock porosity and permeability
… different mobile Nuclear Magnetic Resonance (NMR) core-scanners were used to measure porosity and permeability of water-saturated drill cores and core plugs in a non-destructive way. In addition to their use in the laboratory, the small and light-weight devices are conveniently shipped, e.g. …
-
A low-field NMR tool for soil moisture
… non-invasive way, the development of a low-field NMR sensor has been undertaken in this dissertation. Based on prior designs of low-field NMR instruments like the NMR-MOUSE and the well logging tools, two conceptual designs has been evaluated. One of these designs was chosen for construction of a …
-
Synthesis and functionalisation of metal and metal oxide nanoparticles for theranostics
… for transdermal delivery using porcine skin. An NMR profile of the skin using a 0.25T NMR MOUSE® before and after application of the gel showed that after an incubation period of 2 hrs the CPP-SPIOs had penetrated the skin leading to a reduction in signal. This has potential applications for …
-
Charakterisierung von Elastomeren mittels dynamischer Indentation und vergleichender Methoden
… vulcanizate such an image was compared with an NMR-image. In the case of crosslink-density inhomogeneities an accomodation of the images could be confirmed. Indentation experiments on a carbon black loaded rubber were accompanied with images of atomic force microscopy. Therefore the range of …