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Gotowe bibliografie tematyczne / Mm-wave/THz frequency ablation

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Gotowa bibliografia na temat „Mm-wave/THz frequency ablation”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Mm-wave/THz frequency ablation"

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An, Jinsu, Dong-Sung Won, Yubeen Park, et al. "Effects of changes in the waveform and frequency of radio frequency energy on tissue ablation range." PLOS ONE 19, no. 9 (2024): e0308691. http://dx.doi.org/10.1371/journal.pone.0308691.

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This study reports the effects of changes in the waveform and frequency of radio frequency (RF) energy on the tissue ablation range. We developed a 70-watt RFA generator that provides sine and square waves and allows frequency control between 10 Hz and 500 kHz. The changes in the ablation range according to the waveform and frequency were observed using the developed generator. In the waveform variation test, the distance between the electrodes and the electrode type were changed for both waveforms with the frequency set to 500 kHz. In the frequency variation test, the waveform and electrode t

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Neelakanta, Perambur. "de Novo Radio Frequency Ablation Therapy: Application of Unexplored Electromagnetic Spectral Resources of mm-Wave/THz Band in Clinical Ablation Procedures – A Review." British Journal of Medicine and Medical Research 3, no. 4 (2013): 1701–30. http://dx.doi.org/10.9734/bjmmr/2013/4368.

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GEYİKOĞLU, Miraç Dilruba, Hilal KOÇ, Bülent ÇAVUŞOĞLU, Mehmet ERTUGRUL, and Karim ABBASİAN. "Designing Graphene-Based Antenna for Terahertz Wave Ablation (TWA) System." Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi 15, no. 2 (2022): 507–14. http://dx.doi.org/10.18185/erzifbed.1014513.

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Cancer is one of the most feared health problems today. Studies on cancer diagnosis and treatment are carried out intensively. In this study, a graphene-based antenna is proposed for cancer diagnosis and treatment with THz radiation therapy, which is a relatively new radiation technique. A graphene-based two-layer monopole antenna is designed for 1.65THz operation frequency. To change the bandwidth and radiation pattern without changing the operating frequency, a graphene ring is placed on the SiO2 substrate (2nd layer).Antenna performance is analyzed for reflection coefficient, realized gain,

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Huang, Hsin-hui, Takeshi Nagashima, Tetsu Yonezawa, et al. "Giant Enhancement of THz Wave Emission under Double-Pulse Excitation of Thin Water Flow." Applied Sciences 10, no. 6 (2020): 2031. http://dx.doi.org/10.3390/app10062031.

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Simultaneous measurements of THz wave and hard X-ray emission from thin and flat water flow when irradiated by double femtosecond laser pulses (800 nm, 35 fs/transform-limited, 0.5 kHz, delay times up to 15 ns) were carried out. THz wave measurements by time-domain spectroscopy and X-ray detection by Geiger counters were performed at the transmission and the reflection sides of the flow. THz wave emission spectra show their dynamic peak shifts toward the low frequency with the highest intensity enhancements more than 1.5 × 10 3 times in |E| 2 accumulated over the whole spectrum range of 0–3 TH

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Gastal, E. L., M. O. Gastal, M. A. Beg, and O. J. Ginther. "Interrelationships among follicles during the common-growth phase of a follicular wave and capacity of individual follicles for dominance in mares." Reproduction 128, no. 4 (2004): 417–22. http://dx.doi.org/10.1530/rep.1.00259.

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The changing diameter interrelationships among follicles during the interval from emergence to deviation (common-growth phase) were studied in 59 mares. All follicles of ≥6.0 mm were ablated 10 days after ovulation. The four largest follicles of the postablation wave were ranked D1, D2, D3 and D4 at the expected beginning of deviation (D1 ≥ 20.0 mm), according to descending diameter. The four follicles were also ranked independently, according to order of emergence at 6.0–6.9 mm as E1 (first to emerge), E2, E3 and E4. The follicles emerged during 1.3 ± 0.1 to 3.1 ± 0.1 days, and expected devia

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Nagel, Claudia, Nicolas Pilia, Laura Unger, and Olaf Dössel. "Performance of Different Atrial Conduction Velocity Estimation Algorithms Improves with Knowledge about the Depolarization Pattern." Current Directions in Biomedical Engineering 5, no. 1 (2019): 101–4. http://dx.doi.org/10.1515/cdbme-2019-0026.

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AbstractQuantifying the atrial conduction velocity (CV) reveals important information for targeting critical arrhythmia sites that initiate and sustain abnormal electrical pathways, e.g. during atrial flutter. The knowledge about the local CV distribution on the atrial surface thus enhances clinical catheter ablation procedures by localizing pathological propagation paths to be eliminated during the intervention. Several algorithms have been proposed for estimating the CV. All of them are solely based on the local activation times calculated from electroanatomical mapping data. They deliver fa

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Kostyleva, N. M., and О. Yu Usenko. "Evaluation of the effectiveness of radiofrequency ablation of colorectal cancer metastases using shear wave elastometry." Український радіологічний та онкологічний журнал 33, no. 2 (2025): 200–211. https://doi.org/10.46879/ukroj.2.2025.200-211.

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Background. Radiofrequency ablation of metastatic foci in the liver is one of the therapeutic techniques indicated for patients with synchronous and/or metachronous colorectal cancer (CRC) metastases in the liver. Purpose – to investigate the feasibility of using ultrasound liver elastometry to monitor the implementation and evaluate the effectiveness of RFA of liver metastases of CRC. Materials and methods. A comparative study of the results of percutaneous RFA of hepatic metastases of CRC in two representative groups of patients aged 43 to 84 years (mean – 59.8 ± 10.0 years) was performed. G

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Kisiel, Z., L. Kolesniková, A. Belloche, et al. "Millimetre-wave laboratory study of glycinamide and a search for it with ALMA towards Sagittarius B2(N)." Astronomy & Astrophysics 657 (January 2022): A99. http://dx.doi.org/10.1051/0004-6361/202142350.

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Context. Glycinamide (NH2CH2C(O)NH2) is considered to be one of the possible precursors of the simplest amino acid, glycine. Its only rotational spectrum reported so far has been in the centimetre-wave region on a laser-ablation generated supersonic expansion sample. Aims. The aim of this work is to extend the laboratory spectrum of glycinamide to the millimetre (mm) wave region to support searches for this molecule in the interstellar medium and to perform the first check for its presence in the high-mass star forming region Sagittarius B2(N). Methods. Glycinamide was synthesised chemically a

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Polat, Hilal Koç. "A Comparative Analysis of Graphene Cladding Rectangular Waveguides Filled with Various Materials for 1.65 THz Ablation System." October 2023 4, no. 4 (2024): 1–4. http://dx.doi.org/10.36937/ben.2023.4880.

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Today, cancer diagnosis and treatment with the THz radiation model (THz wave ablation) is a subject of interest to researchers. The design performance of THz ablation systems depends on the design of a waveguide that will provide low-loss transmission of radiation from the antenna to the tissue. In this study, first of all, the superiority of graphene over noble metal is demonstrated. Then, the performance of THz rectangular waveguides which use graphene cladding and different core materials such as Silicon (Si), Silica (SiO2), Zeonex, Teflon, and PMMA (Polymethyl methacrylate) are comparative

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Md Rabiul Awal, Muhammad Syarifuddin Yahya, Nurafnida Afrizal, Ahmad Zaki Annuar, and Wan Hafiza Wan Hassan. "Impact of THz Frequency on Underwater Acoustic Wave Propagation for Short Range Wireless Applications." CFD Letters 13, no. 11 (2021): 116–25. http://dx.doi.org/10.37934/cfdl.13.11.116125.

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Acoustic propagation in seawater is an important aspect of scientific investigation. However, the impact of the THz scale frequencies for acoustic propagation is not included in the studies. Thus, a finite element analysis of such propagation in a seawater medium is presented in this paper applying THz frequencies. A transmitter (circular with a diameter of 14 mm, a thickness of 3 mm) and a rectangular receiver (20×10×0.5 mm3) are designed to trace the variations in the propagation mediums. A propagation medium of seawater (70×40×60 mm3) with ice and softwood is modelled. A scale of frequencie

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Części książek na temat "Mm-wave/THz frequency ablation"

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Sertel, Kubilay, and Georgios C. Trichopoulos. "Non-contact Metrology for mm-Wave and THz Electronics." In High-Frequency GaN Electronic Devices. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20208-8_10.

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"Mm-wave and sub-THz CMOS VCOs." In Phase-Locked Frequency Generation and Clocking: Architectures and circuits for modern wireless and wireline systems. Institution of Engineering and Technology, 2020. http://dx.doi.org/10.1049/pbcs064e_ch12.

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Shams, Haymen. "Indoor Short Range Wireless Broadband Communications Based on Optical Fiber Distribution." In Convergence of Broadband, Broadcast, and Cellular Network Technologies. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-5978-0.ch011.

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There is a continuous demand for increasing wireless access broadband services to the end users, especially with widespread high quality mobile devices. The Internet mobile applications and multimedia services are constantly hungry for broadband wireless bandwidth. In order to overcome this bandwidth limitation, a frequency band (57-64 GHz) has recently been assigned for short range indoor wireless broadband signals due to the large available bandwidth. However, the transmission at this band is limited to a few meters due to the high atmospheric absorption loss. Radio over Fiber (RoF) technolo

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Luster, Markus, and Michael Lassmann. "Radio-iodine treatment of hyperthyroidism." In Oxford Textbook of Endocrinology and Diabetes. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199235292.003.3196.

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Radioactive iodine has been used successfully for almost 70 years since the first treatment took place at the Massachusetts General Hospital in Boston in 1941. However, it was not until after the Second World War that <sup>131</sup>I became generally available for clinical applications (1). The radioactive iodine isotope is chemically identical to ‘stable’ iodine (<sup>127</sup>I) and thus becomes a part of the intrathyroidal metabolism. Its principle of action is based on the emission of β‎-rays with a range of 0.5–2 mm in the tissue leading to high local radiation absorbed doses while sparin

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Streszczenia konferencji na temat "Mm-wave/THz frequency ablation"

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Qin, Yanbin, Nanxi Li, and Baolin Liu. "Theoretical Evaluation of Heat Transfer in Liver Tumor Microwave Ablation Using a 10-Slot Antenna at High Frequencies." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73846.

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Abstract Microwave ablation (MWA) cures cancer by inserting slender antennas into tumors and producing large amounts of heat to kill cancerous cells. A key challenge is the selective heating of cancer cells without damaging the surrounding tissue, which requires a control of heating power for appropriate temperature distribution. This study established a theoretical simulation model for the microwave ablation of a porcine liver by using a coaxial-slot antenna with 10 slots at high frequencies. The axisymmetric finite element method (FEM) with temperature dependent thermal and dielectric proper

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Cojocari, Oleg, Diego Moro-Melgar, and Ion Oprea. "High-Power MM-Wave Frequency Multipliers." In 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2019. http://dx.doi.org/10.1109/irmmw-thz.2019.8874296.

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Aghasi, Hamidreza, and Ehsan Afshari. "Design of broadband mm-wave and THz frequency doublers." In ESSCIRC Conference 2016: 42nd European Solid-State Circuits Conference. IEEE, 2016. http://dx.doi.org/10.1109/esscirc.2016.7598318.

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Gudmundsson, Jon E., and Gaganpreet Singh. "Reflectivity measurement of mm-wave absorbers using frequency-domain continuous wave THz spectroscopy." In Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, edited by Jonas Zmuidzinas and Jian-Rong Gao. SPIE, 2024. http://dx.doi.org/10.1117/12.3021440.

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Oprea, I., O. Cojocari, M. Sobornytskyy, and H. L. Hartnagel. "Experimental validation of thermal model of MM-Wave frequency multipliers." In 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2013). IEEE, 2013. http://dx.doi.org/10.1109/irmmw-thz.2013.6665844.

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Heidinger, R., I. Danilov, A. Meier, et al. "Low power mm-wave transmission characteristics of a frequency tuneable double disk CVD-diamond window." In 2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics (IRMMW-THz). IEEE, 2007. http://dx.doi.org/10.1109/icimw.2007.4516773.

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Tosaka, Toshihide, Katsumi Fujii, Kaori Fukunaga, and Yasushi Matsumoto. "Measurement of frequency conversion losses with 3-mixer method for traceable mm-wave power measurement method in D-band." In 2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2012). IEEE, 2012. http://dx.doi.org/10.1109/irmmw-thz.2012.6380427.

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Shimaoka, Kazuhiro, Moto Kinoshita, Katsumi Fujii, and Toshihide Tosaka. "Design of a broadband calorimeter for mm-wave power standard in the frequency range from 110 GHz to 170 GHz." In 2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2012). IEEE, 2012. http://dx.doi.org/10.1109/irmmw-thz.2012.6380247.

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Shimaoka, Kazuhiro, Moto Kinoshita, Katsumi Fujii, and Toshihide Tosaka. "Calibration of mm-wave power meters using a broadband calorimeter in the frequency range from 110 GHz to 170 GHz." In 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2013). IEEE, 2013. http://dx.doi.org/10.1109/irmmw-thz.2013.6665712.

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Maleke, Caroline, Jianwen Luo, Assimina A. Pelegri, and Elisa E. Konofagou. "Mapping of Regional Cancerous Tissue Mechanical Property Changes Using Harmonic Motion Imaging." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42294.

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Mechanical changes in breast tissues as a result of cancer are usually detected through palpation by the physician and/or self examination. However, physicians are unable to palpate most masses under 1 cm in diameter and microscopic diseases. The goal of our study is to introduce the application of the Harmonic Motion Imaging (HMI), an acoustic radiation force technique, for reliable sensitive tumor detection and real-time monitoring of tumor ablation. Here, we applied the HMI technique using a single-element Focused Ultrasound (FUS) transducer. Due to the highly localized and harmonic nature

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