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Showing 1 to 20 of 144 for “"Radiofrequency"”.

  1. Chemical Problems in Radiofrequency Spectroscopy

    Mccall, David WarrenUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T17:02:28Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0006967.PDF: 3303782 bytes, checksum: a98c8486313757b8976f38de252f4604 (MD5) Previous issue date: 1953

    uiuc Repository record

  2. Structural Applications of Radiofrequency Spectroscopy

    Holm, Charles HawthorneUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-05T19:36:18Z (GMT). No. of bitstreams: 1 0015222.pdf: 5390547 bytes, checksum: f2c198cf5a8ec9b28bbb76f35c6e59d3 (MD5) Previous issue date: 1955

    uiuc Repository record

  3. Relaxation Phenomena in Radiofrequency Spectroscopy

    Stejskal, Edward OttoUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-05T19:36:36Z (GMT). No. of bitstreams: 1 0020891.pdf: 3583044 bytes, checksum: 597d1b52b584983f8f1d7c63fd696b28 (MD5) Previous issue date: 1957

    uiuc Repository record

  4. Approximate Thermal Modeling of Radiofrequency Cardiac Ablation

    Walter, Aaron Joseph2005

    … thesis is to increase the efficacy and safety of radiofrequency catheter ablation (RFCA) of cardiac tissue. The purpose of RFCA is to carefully heat selected locations in the heart. The resulting thermal injury creates lesions which prevent the generation or propagation of arrhythmias. The ability …

    byu Repository record

  5. Radiofrequency losses in an NMR surface coil

    Skubis, Mark D. (Mark David), 1974-Massachusetts Institute of Technology1998

    Radiofrequency energy loss has been investigated for a resonant NMR surface coil between 20 MHz and 400 MHz. High-field NMR (> 64 MHz) is used increasingly for human imaging and spectroscopy to achieve improved SNR and spectral resolution. RF losses in coils designed using conventional …

    mit Repository record

  6. Biologic Influence of 900MHz Radiofrequency Identification in Rat

    김, 연주2011

    Background and PURPOSE: The RFID (Radiofrequency Identification)system that operated under the ultra high frequency(UHF) band, is advanced important technology in a variety of fields. A RFID system appreciate the objects through wireless communication with tags by harvesting enerty from the …

    ajou Repository record

  7. Radiofrequency heating of nanoclusters and nanoparticles for enzyme activation

    Collins, Christian Blake, author, Ackerson, Christopher, advisor, Van Orden, Alan, committee member, Finke, Rick, committee member, Collins, George, committee memberColorado State University. Libraries2018

    Radiofrequency (RF) fields heat magnetic nanoparticles. Applications include remote drug delivery and noninvasive cancer therapy. The underlying objective is to increase temperatures precisely where desired without heating the surroundings. Before our work, the replicable limit of this precision …

    colostate Repository record

  8. Design of multidimensional radiofrequency pulses in magnetic resonance imaging

    Ma, ChaoUniversity of Illinois at Urbana-Champaign2013

    Multidimensional radiofrequency (RF) pulses have wide applications in magnetic resonance imaging and spectroscopy experiments. These applications include reduced field-of-view (FOV) imaging of region-of-interest (ROI), B1 inhomogeneity correction, and simultaneous spatial-spectral selective …

    uiuc Repository record

  9. Radiofrequency detector coil performance maps for parallel MRI applications

    Lattanzi, RiccardoMassachusetts Institute of Technology2006

    … speed limits. In parallel MRI, arrays of radiofrequency (RF) detector coil arrays are used to perform some degree of spatial encoding which complements traditional encoding using magnetic field gradients. As the acceleration factor increases, coil design becomes critical to the overall …

    mit Repository record

  10. Advanced Characterization of Materials for Superconducting Radiofrequency Accelerator Cavities

    Tuggle, James Robert Jr.Virginia Tech2019

    Particle accelerators are a leading tool for frontier science. Pushing that frontier further demands more machines with higher performance, and more of a very expensive technology: superconducting radio-frequency (SRF) acceleration. From a materials perspective this means reducing residual surface …

    vt Repository record

  11. Integrated electromagnets and radiofrequency spectroscopy in a planar Paul trap

    Bautista-Salvador, AmadoUniversität Ulm

    ulm-diss Repository record

  12. Modeling of carbonization and stalling during radiofrequency ablation and electrosurgery

    Ran, JunrenUniversity of Illinois Urbana-Champaign2025

    Radiofrequency (RF) thermal therapies, including RF ablation and electrosurgery, function by delivering alternating currents in the 100 kHz-1 MHz range to biological tissues. These currents generate electric fields that drive ionic oscillations in intracellular and extracellular fluids, producing …

    uiuc Repository record

  13. A Study of Radiofrequency Cardiac Ablation Using Analytical and Numerical Techniques

    Roper, Ryan Todd2003

    <p>Studies on radiofrequency (RF) ablation are often aimed at accurately predicting tissue temperature distributions by numerical solution of the bioheat equation. This thesis describes the development of an analytical solution to serve as a benchmark for subsequent numerical solutions. The …

    byu Repository record

  14. Chemical reaction in a radiofrequency discharge : the oxidation of hydrogen chloride

    Bell, Alexis T., 1942-Massachusetts Institute of Technology1967

    Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1967.

    mit Repository record

  15. THE APPLICATION OF RADIOFREQUENCY WAVES IN THE MANAGEMENT OF ORAL MAXILLOFACIAL PAIN

    ANDRISANI, MAUROUniversità degli Studi di Milano2026

    … non-invasive approaches, including the use of radiofrequency diathermy. Diathermy employs high-frequency electromagnetic waves to generate endogenous tissue heating, promoting muscle relaxation, reduction of infection, and improvement of blood circulation, with potential benefits for pain …

    milano Repository record

  16. Radiofrequency ablation versus cryoablation in the treatment of atrioventricular nodal reentrant tachycardia

    McCormick, Michael2020

    … and safety. Two modalities of ablation, radiofrequency (RF) and cryoablation are commonly utilized in clinical practice with high levels of success in treating AVNRT. To date, studies on the two modalities have compared metrics such as acute success rate, procedure time, fluoroscopy time, …

    bu Repository record

  17. Radiofrequency Spectroscopy: Electron Coupling of Four Nuclei With Spin of One-Half

    Heeschen, Jerry ParkerUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-05T19:37:16Z (GMT). No. of bitstreams: 1 6000190.pdf: 6495142 bytes, checksum: 19a2c29eaec86bfde742fba3fea98f04 (MD5) Previous issue date: 1959

    uiuc Repository record

  18. Parallel radiofrequency transmission for 3 Tesla and 7 Tesla magnetic resonance imaging

    Yetişir, FilizMassachusetts Institute of Technology2017

    … Moreover, the tissue heating rate due to radiofrequency (RF) energy deposition (also called specific absorption rate or SAR) increases, limiting the imaging speed. Parallel RF transmission (pTx) was proposed to address both of these challenges by optimization of RF pulses transmitted from …

    mit Repository record

  19. The use of radiofrequency thermal ablation for the treatment of upper airway disorders

    Bäck, LeifHelsingin yliopisto2003

    helsinki Repository record

  20. Chemosensitization of Hepatocellular Carcinoma to Gemcitabine By Non-Invasive Radiofrequency Field-Induced Hyperthermia

    Raoof, Mustafa2012

    … repair pathway. Combination of non-invasive radiofrequency field-induced hyperthermia and gemcitabine was superior to either therapy alone (p</p>

    uthsc Repository record

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