Academic literature on the topic 'Plasma wands'

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Journal articles on the topic "Plasma wands"

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Bahgat, Ahmed Yassin. "Effect of Cooling Irrigating Saline in Tongue Base Ablation in Obstructive Sleep Apnea." OTO Open 5, no. 1 (2021): 2473974X2198959. http://dx.doi.org/10.1177/2473974x21989599.

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Objective Plasma is formed by creating a high-density energy field within an electrically conductive fluid such as saline. Sometimes ablated bits of tissue get stuck between the electrodes of the wand, obstructing the suction channel. The purpose of this study is to investigate the effect of cooling the irrigating saline during ablation of the hypertrophied tongue base in patients with obstructive sleep apnea. Study Design Prospective randomized controlled trial. Setting An otorhinolaryngology department in Main University hospitals. Methods Sixty adult patients with obstructive sleep apnea an
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Barnes, Danielle, Meredith Herman, Nahimarys Hernandez, Brooke Koltz, David Sohn, and Jacob Maier. "Poster 110: Depth of Tissue Necrosis Following Footprint Preparation with Arthroscopic Radiofrequency Ablation." Orthopaedic Journal of Sports Medicine 10, no. 7_suppl5 (2022): 2325967121S0067. http://dx.doi.org/10.1177/2325967121s00671.

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Objectives: Successful rotator cuff repair depends upon both secure fixation and biologic integration at the bone-tendon interface. Viable osteocytes and sound bony architecture contribute to the mechanical stability of suture anchor repair constructs. Furthermore, because tendons are hypovascular, preserving the microvasculature of the underlying bone bed is important. To create the bone-tendon interface, shoulder surgeons typically employ three different techniques to clear soft tissue from the footprint prior to rotator cuff repair: mechanical debridement, radiofrequency coagulation, and ra
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Pei, X., J. Liu, Y. Xian, and X. Lu. "A battery-operated atmospheric-pressure plasma wand for biomedical applications." Journal of Physics D: Applied Physics 47, no. 14 (2014): 145204. http://dx.doi.org/10.1088/0022-3727/47/14/145204.

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Goshua, George, Pavan K. Bendapudi, and Alfred Ian Lee. "Thrombosis questions from the inpatient wards." Hematology 2022, no. 1 (2022): 481–90. http://dx.doi.org/10.1182/hematology.2022000384.

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Abstract The multifaceted pathophysiologic processes that comprise thrombosis and thromboembolic diseases take on a particular urgency in the hospitalized setting. In this review, we explore 3 cases of thrombosis from the inpatient wards: purpura fulminans, cancer-associated thrombosis with thrombocytopenia, and coronavirus disease 2019 (COVID-19) and the use of dose-escalated anticoagulation therapy and antiplatelet agents. We discuss the evaluation and management of purpura fulminans and the roles of plasma transfusion, protein C and antithrombin replacement, and anticoagulation in treating
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Choi, Jongbong, Minhyuk Lee, Yangsoon Lee, Yeongtak Song, Yongil Cho, and Tae Ho Lim. "Effectiveness of Plasma-Treated Hydrogen Peroxide Mist Disinfection in Various Hospital Environments." International Journal of Environmental Research and Public Health 18, no. 18 (2021): 9841. http://dx.doi.org/10.3390/ijerph18189841.

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Hospital environments are associated with a high risk of infection. As plasma-treated hydrogen peroxide mist disinfection has a higher disinfection efficacy, we tested the efficacy of plasma-treated hydrogen peroxide mist disinfection on several surfaces in various hospital environments. Disinfection was performed in 23 rooms across different hospital environments, including hospital wards, outpatient departments (OPDs), and emergency rooms. A total of 459 surfaces were swabbed before/after disinfection. Surfaces were also divided into plastic, metal, wood, leather, ceramic, silicone, and glas
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Webb, David F., Jean-Louis Bougeret, Hilary V. Cane, et al. "Commission 49: Interplanetary Plasma and Heliosphere." Proceedings of the International Astronomical Union 1, T26A (2005): 103–20. http://dx.doi.org/10.1017/s1743921306004406.

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AbstractCommission 49 covers research on the solar wind, shocks and particle acceleration, both transient and steady-state, e.g., corotating, structures within the heliosphere, and the termination shock and boundary of the heliosphere. During the last three years there was considerable progress made in studies of solar energetic particles, compositional and other signatures in the heliosphere, solar wind pickup ions, the termination shock, which was finally crossed by a spacecraft, and the boundary between the heliosphere and interstellar medium, and in solar wind modeling and space weather. T
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Smith, Lee P., and Soham Roy. "Device-Related Risk of Airway Fire in Oropharyngeal Surgery." Otolaryngology–Head and Neck Surgery 139, no. 2_suppl (2008): P70. http://dx.doi.org/10.1016/j.otohns.2008.05.226.

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Objective Intraoperative fires are a well-described and devastating complication of oropharyngeal and airway surgery. We utilized a physical model to study the fire risk for an electrosurgical device (Bovie) as compared to a bipolar radio-frequency ablation wand (Coblator) Methods A 6.0 endotracheal tube was inserted into the cranial end of a degutted whole raw chicken through which 100% oxygen was piped at 10 L/min. Three tonsil sponges were placed inside the cavity. An electrosurgical device (15 watts, coagulate mode) and bipolar radiofrequency ablation wand (9, 7 and 3 in ablate mode; 5 and
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Maurice, Jean-Luc, Pavel Bulkin, Éric Ngo, et al. "Visualizing the effects of plasma-generated H atoms in situ in a transmission electron microscope." European Physical Journal Applied Physics 97 (2022): 7. http://dx.doi.org/10.1051/epjap/2022210276.

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The radicals and atoms generated by a plasma have the effect, among others, of changing the surface energies of materials, which allows one to prepare nano-objects that would not stabilise in other conditions. This is the case of the Sn catalysed silicon nanowires (NWs) we present in this paper: without plasma, the liquid Sn at the top of NWs is unstable (because Sn naturally wets the Si) so that no growth is allowed, while in presence of the H atoms generated by the plasma, the balance of surface energies is drastically changed; the Sn droplet stabilises and can be used efficiently by the vap
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Collinson, P. O., S. Thomas, L. Siu, P. Vasudeva, P. J. Stubbs, and R. Canepa-Anson. "Rapid Troponin T Measurement in Whole Blood for Detection of Myocardial Damage." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 32, no. 5 (1995): 454–58. http://dx.doi.org/10.1177/000456329503200504.

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A dry chemistry system for rapid qualitative measurement of cardiac troponin T in whole blood, serum, EDTA and lithium heparin plasma was studied in 197 admissions to the coronary care unit and general wards of a typical district general hospital for whom troponin T was requested. This included patients with unexplained collapse, acute dysrythmia or elevated creatine kinase of unknown origin. EDTA whole blood and plasma proved the most satisfactory sample matrices. Lithium heparin whole blood was equally appropriate but lithium heparin plasma gave a false negative result. Serum was an unsatisf
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Loh, R., L. Stepan, E. Zhen, and C.-K. L. Shaw. "Argon plasma coagulation tonsillectomy versus coblation tonsillectomy: a comparison of efficacy and safety." Journal of Laryngology & Otology 133, no. 06 (2019): 520–25. http://dx.doi.org/10.1017/s0022215119001191.

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AbstractBackgroundTonsillectomy is one of the most common otolaryngological procedures. Nonetheless, there is still no universally approved ‘gold standard’ technique.ObjectiveTo compare the safety and efficacy of argon plasma coagulation and coblation techniques in tonsillectomy.MethodsA multi-institutional, retrospective cohort study was conducted, comprising 283 patients who underwent bilateral tonsillectomies performed by a single surgeon between 2014 and 2017. The outcome measures included: operative time, intra-operative blood loss, post-operative pain and post-operative haemorrhage.Resul
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Dissertations / Theses on the topic "Plasma wands"

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Baudach, Mandy. "Analyse der infolge von Plasma-Wand-Wechselwirkungen entstehenden Kohlenwasserstoff-Verbindungen." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2009. http://dx.doi.org/10.18452/16025.

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Der Einsatz von Kohlenstoffmaterialien z.B. in ITER ist damit verbunden, dass es durch physikalische und chemische Zerstäubung zur Bildung von Kohlenwasserstoffen kommt, die im Randschichtplasma zersetzt werden und sich in Form tritiumreicher amorpher Kohlenwasserstoffschichten auf den Wänden ablagern. Deshalb ist ein besseres Verständnis der Bildung, der Zersetzung, des Transports und der Haftung von Kohlenwasserstoffen infolge der Plasma-Wand-Wechselwirkung von großem Interesse. Die genannten Prozesse wurden am linearen Plasmagenerator PSI-2 mit Hilfe verschiedener Diagnostiken für untersc
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Endlich, Pia. "Untersuchungen zur experimentellen Simulation des Eintritts von Raumflugkörpern in die Marsatmosphäre." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-35344.

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Lunt, Tilmann. "Experimental investigation of the plasma-wall transition." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2008. http://dx.doi.org/10.18452/15837.

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In der vorliegenden Arbeit wurde das Strömungsverhalten eines magnetisierten Argonplasmas beim Auftreffen auf eine neutralisierende Oberfläche untersucht. Mit Hilfe der Laserinduzierten Fluoreszenz wurde dazu nicht-invasiv die Geschwindigkeitsverteilung der Ionen mit einer Ortsauflösung von standardmäßig dz=0.5 mm als Funktion des Abstandes zur Oberfläche gemessen. Zwei Situationen wurden untersucht (a): praktisch das ganze Plasma strömt auf ein großes Target (Durchmesser 100 mm) und (b) die Größe des Targets ist wesentlich kleiner (Durchmesser 15 mm) als der Durchmesser der Plasmasäule. Unmi
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Waldmann, Ole. "Untersuchung der Transportphänome magnetiserter Plasmen in der Umgebung materieller Limiter." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2009. http://dx.doi.org/10.18452/15963.

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Es wurden die Transportphänomene magnetisierter Plasmen in der Umgebung materieller Limiter am linearen Plasmagenerator PSI-2 unter Verwendung von elektrischen und optischen Diagnostiken untersucht. Der Senkrechtdiffusionskoeffizient wurde mit D= 5 m^2/s und einer 1/B-Abhängigkeit bestimmt. Der dominierende Prozess des Radialtransportes ist turbulenter Natur. Unter Berücksichtigung der Volumenionisation kann das radiale Dichteprofil konsistent beschrieben werden. Der Schaft einer Langmuirsonde reduziert in einem magnetisierten Plasma die Elektronendichte. Dieses wurde mit zwei Sonden untersu
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Berberich, Benjamin [Verfasser], Detlev [Akademischer Betreuer] Reiter, and Alexander [Akademischer Betreuer] Pukhov. "Entwicklung und Anwendung eines Tree-Codes in Simulationsszenarios der Plasma-Wand-Wechselwirkung / Benjamin Berberich. Gutachter: Detlev Reiter ; Alexander Pukhov." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2012. http://d-nb.info/1020914823/34.

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Salmagne, Christian Verfasser], Hans-Jörg [Akademischer Betreuer] [Kull, and Detlev [Akademischer Betreuer] Reiter. "Ab initio Simulation der Plasma-Wand-Kontaktzone : Entwicklung und Bewertung gitterfreier Algorithmen / Christian Salmagne ; Hans-Jörg Kull, Detlev Reiter." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1130402878/34.

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Salmagne, Christian [Verfasser], Hans-Jörg [Akademischer Betreuer] Kull, and Detlev [Akademischer Betreuer] Reiter. "Ab initio Simulation der Plasma-Wand-Kontaktzone : Entwicklung und Bewertung gitterfreier Algorithmen / Christian Salmagne ; Hans-Jörg Kull, Detlev Reiter." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1130402878/34.

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Koch, Bernd. "Angular resolved measurements of particle and energy fluxes to surfaces in magnetized plasmas." Doctoral thesis, [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973051116.

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Nitschke, Mirko. "Infrarotspektroskopische Charakterisierung plasmamodifizierter Polymeroberflaechen." [S.l. : s.n.], 1996. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10324486.

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Rochotzki, Ralf. "Ellipsometrische Untersuchungen an Plasmapolymeren und plasmamodifizierten Polymeroberflaechen." [S.l. : s.n.], 1996. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10324491.

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Books on the topic "Plasma wands"

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Hackmann, Jobst. Magnetohydrodynamische Berechnungen Rotationssymmetrischer Hochtemperaturplasmen Unter Besonderer Berücksichtigung Von Plasma-Wand-Effekten. VS Verlag fur Sozialwissenschaften GmbH, 2013.

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Book chapters on the topic "Plasma wands"

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Francis, Alexander, Doron Joffe, Lan Xu, Neil Stacey, and David Rubin. "Feasibility of repurposing hollow fibre membrane dialysers for oxygenating blood in resource constrained environments." In Medical Devices Innovation for Africa: enabling industrialisation. University of Cape Town Libraries, 2022. http://dx.doi.org/10.15641/uctlib40387.

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Previous research has demonstrated the viability of kidney dialysers repurposed as extra-corporeal membrane oxygenation devices to provide sufficient supplemental oxygen support for those suffering from COVID-19. This study focused on determining the mass transfer coefficient for carbon dioxide in kidney dialyser cartridges at varying pH levels. CO2 mass transfer coefficients of 5.5 and 6.95 𝑚𝑔/𝑘𝑝𝑎∙𝑚𝑖𝑛 were achieved, depending on the type of hollow fibre membrane dialyser — this corresponds to a CO2 removal rate of between of 80% and 90% of the total CO2 produced by the body. The mass transfer
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Conference papers on the topic "Plasma wands"

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Lu, XinPei, and XueKai Pei. "A battery-operated atmospheric-pressure plasma wand for biomedical applications." In 2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS). IEEE, 2014. http://dx.doi.org/10.1109/plasma.2014.7012574.

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Pei, Xuekai, and Xinpei Lu. "A battery-operated atmospheric-pressure plasma wand for biomedical applications." In 2015 IEEE International Conference on Plasma Sciences (ICOPS). IEEE, 2015. http://dx.doi.org/10.1109/plasma.2015.7179904.

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Schnürer, M., P. Ambrosi, M. P. Kalachnikov, et al. "Hot electron distribution from short pulse laser plasma." In Applications of High Field and Short Wavelength Sources. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/hfsw.1997.the39.

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Hot electron production and related Bremsstrahlung emission known in long pulse (tens of ps up to ns FWHM) becomes more important in short and ultra short (ps down to tens of fs FWHM) laser plasma interaction because some ten percent of the laser energy are being transferred to hot electrons, as theoretical (Wilks et al 1992, Gibbon 1994) and experimental (Schnürer et al 1995) studies have indicated. Measured hot electron distributions are compared to model predictions in order to gain more knowledge about the laser plasma absorption mechanism. A control of the hot electron production with the
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Sripada, Srinivas S., P. S. Ayyaswamy, and I. M. Cohen. "Numerical Computation of the Heat Transfer to a Spherical-Tip Anode During an Electronic Flame Off Process." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0831.

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Abstract In the ball-wedge bonding process employed in microelectronic packaging, the first step is the formation of a spherical tip by the melting and roll-up of a segment of a cylindrical wire. The heat transfer for the melting and roll-up to a spherical-tip shape is provided by a plasma are that is struck between the wire tip (anode) and a flat plate cathode (wand). Eventually, the spherical tip becomes part of a ball. The ball so formed is bonded on the bond pad of a chip, and the unmelted segment of the wire is looped to form a second (wedge) bond on the lead frame. This provides the inte
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