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Relevant bibliographies by topics / Argon-37

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Academic literature on the topic 'Argon-37'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Journal articles on the topic "Argon-37"

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Loosli, H. H., B. E. Lehmann, and W. Balderer. "Argon-39, argon-37 and krypton-85 isotopes in Stripa groundwaters." Geochimica et Cosmochimica Acta 53, no. 8 (August 1989): 1825–29. http://dx.doi.org/10.1016/0016-7037(89)90303-7.

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Abdurashitov, J. N., V. N. Gavrin, I. N. Mirmov, E. P. Veretenkin, V. E. Yants, N. N. Oshkanov, A. I. Karpenko, et al. "The New Status of Argon-37 Artificial Neutrino Source Project." Nuclear Physics B - Proceedings Supplements 110 (July 2002): 326–28. http://dx.doi.org/10.1016/s0920-5632(02)01499-8.

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Abdurashitov, J. "The new status of argon-37 artificial neutrino source project." Nuclear Physics B - Proceedings Supplements 110, no. 2 (July 2002): 326–28. http://dx.doi.org/10.1016/s0920-5632(02)80142-6.

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Mougenot, J., J. J. Gonzalez, P. Freton, and Y. Cressault. "Argon and Arcal.37 plasma characteristics in a TIG configuration." Journal of Physics D: Applied Physics 46, no. 49 (November 19, 2013): 495203. http://dx.doi.org/10.1088/0022-3727/46/49/495203.

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Riedmann, Robin A., and Roland Purtschert. "Separation of argon from environmental samples for Ar-37 and Ar-39 analyses." Separation and Purification Technology 170 (October 2016): 217–23. http://dx.doi.org/10.1016/j.seppur.2016.06.017.

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Fritz, B. G., ThomasR Alexander, TheodoreW Bowyer, JamesC Hayes, EmilyK Mace, and VincentT Woods. "Comparison of near-background concentrations of Argon-37 and Xenon-133 in the atmosphere." Journal of Environmental Radioactivity 233 (July 2021): 106590. http://dx.doi.org/10.1016/j.jenvrad.2021.106590.

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Zhou, Li, Yuetong Qian, Kang Gan, Hong Liu, Xiuju Liu, and Deli Niu. "Effect of different surface treatments and thermocycling on shear bond strength to polyetheretherketone." High Performance Polymers 29, no. 1 (July 28, 2016): 87–93. http://dx.doi.org/10.1177/0954008316628966.

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This study was designed to evaluate the shear bond strength of an adhesive/composite system subjected to different pretreated polyetheretherketone (PEEK) surfaces using different thermocycling conditioning methods. A total of 128 specimens were equally divided into four main groups ( n = 32/group): control (no pretreatment), air abrasion, argon plasma pretreatment, and femtosecond laser groups. The surface topographies and surface roughness were observed by atomic force microscopy after different pretreatments. The specimens were bonded with SE Bond/Clearfil AP-X™. All bonded specimens were stored in distilled water at 37°C for 24 h. Afterward, each group was divided into three subgroups ( n = 8/group) as follows: (a) stored in water for 56 h (37°C); (b) thermal aging for 5000 cycles (5°C/55°C); and (c) thermal aging for 10,000 cycles (5°C/55°C). The shear bond strengths were measured. Air abrasion, argon plasma pretreatment, and femtosecond laser significantly strengthened the bond of SE Bond/Clearfil AP-X™ to PEEK composite compared with that without additional pretreatment. In the same surface pretreatment, the shear bond strengths of specimens conditioned using water storage were higher than that using thermocycles (TCs). Additionally, the specimens with 5000 TC showed significantly higher shear bond strength than that with 10000 TC.

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Zhao, Hailin, Sian Mitchell, Stefania Koumpa, Yushi Tracy Cui, Qingquan Lian, Henrik Hagberg, Mark R. Johnson, Masao Takata, and Daqing Ma. "Heme Oxygenase-1 Mediates Neuroprotection Conferred by Argon in Combination with Hypothermia in Neonatal Hypoxia–Ischemia Brain Injury." Anesthesiology 125, no. 1 (July 1, 2016): 180–92. http://dx.doi.org/10.1097/aln.0000000000001128.

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Abstract Background Hypoxic–ischemic encephalopathy is a major cause of mortality and disability in the newborn. The authors investigated the protective effects of argon combined with hypothermia on neonatal rat hypoxic–ischemic brain injury. Methods In in vitro studies, rat cortical neuronal cell cultures were challenged by oxygen and glucose deprivation for 90 min and exposed to 70% Ar or N2 with 5% CO2 balanced with O2, at 33°C for 2 h. Neuronal phospho-Akt, heme oxygenase-1 and phospho-glycogen synthase kinase-3β expression, and cell death were assessed. In in vivo studies, neonatal rats were subjected to unilateral common carotid artery ligation followed by hypoxia (8% O2 balanced with N2 and CO2) for 90 min. They were exposed to 70% Ar or N2 balanced with oxygen at 33°, 35°, and 37°C for 2 h. Brain injury was assessed at 24 h or 4 weeks after treatment. Results In in vitro studies, argon–hypothermia treatment increased phospho-Akt and heme oxygenase-1 expression and significantly reduced the phospho-glycogen synthase kinase-3β Tyr-216 expression, cytochrome C release, and cell death in oxygen–glucose deprivation–exposed cortical neurons. In in vivo studies, argon–hypothermia treatment decreased hypoxia/ischemia-induced brain infarct size (n = 10) and both caspase-3 and nuclear factor-κB activation in the cortex and hippocampus. It also reduced hippocampal astrocyte activation and proliferation. Inhibition of phosphoinositide-3-kinase (PI3K)/Akt pathway through LY294002 attenuated cerebral protection conferred by argon–hypothermia treatment (n = 8). Conclusion Argon combined with hypothermia provides neuroprotection against cerebral hypoxia–ischemia damage in neonatal rats, which could serve as a new therapeutic strategy against hypoxic–ischemic encephalopathy.

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Alexander, T. R., C. E. Aalseth, H. O. Back, T. W. Bowyer, A. R. Day, E. S. Fuller, J. C. Hayes, et al. "Characterization of a low background proportional counter for a high throughput Argon-37 collection and measurement system." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 954 (February 2020): 161794. http://dx.doi.org/10.1016/j.nima.2019.01.021.

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Tkachuk, O. L., R. L. Parakhoniak, S. A. Plaksin, A. S. Glushenkov, and M. V. Fadeeva. "ARGON APPLICATION FOR CREATION OF PNEUMOPERITONEUM IN LAPAROSCOPIC SURGERIES." Novosti Khirurgii 29, no. 2 (April 21, 2021): 167–74. http://dx.doi.org/10.18484/2305-0047.2021.2.167.

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Objective. To advance the patients’ rehabilitation after laparoscopic surgeries by using insufflation with argon gas for pneumoperitoneum formation. Methods. The given study is the investigation of sequentially admitted 360patients with gallstone disease (cholelithiasis). The patients have been randomly divided into 4 groups: Group1 - uncomplicated gallstone disease, carboxyperitoneum (n=192); Group1a - acute cholelithiasis (n=37), carboxyperitoneum; Group2 - uncomplicated gallstone disease, argonperitoneum (n=102); Group2a - acute cholelithiasis (n=29), argonoperitoneum. All the patients have undergone laparoscopic cholecystectomies. Subjective assessment of the pain syndrome intensity has been studied on the basis of patient-reported outcomes questionnaire according to the visual analogue scale (VAS), need for analgesic injections, presence and intensity of the shoulder pain syndrome as well as the duration of in-patient treatment. Results. In accordance with patient-reported outcomes (with argonperitoneum application) subjective pain sensation has proved to decrease by 1.5-2 fold. On the first day of the postoperative period both in uncomplicated gallstone disease and in acute cholelithiasis, argonperitoneum has statistically significantly reduced the need for analgesics. Pain in the shoulder girdle (omalgia) was observed in 48.9% of the patients having been applied carboxyperitoneum whereas it was noticed in only 5.3% of the patients having been applied argonperitoneum during the operation. Argonperitoneum application statistically significantly reduces in-patient treatment period by 30% (from 2.3 - to 1.6 days) in uncomplicated gallstone disease and by 23% (from 4.3 - to 3.3 days) in gallstone disease complicated by acute cholelithiasis. Conclusion. Application of argon for pneumoperitoneum formation in laparoscopic cholecystectomies reliably reduces pain syndrome intensity in the postoperative period. The number of postoperative omalgia cases is reduced by 42% in patients having undergone cholecystectomies with argonperitoneum application. Application of argonperitoneum in management of patients with cholelithiasis may reduce the hospitalization period by 25-30%. What this paper adds The effect of argon application as an insufflation gas in laparoscopic operations upon the intensity of the postoperative pain syndrome has been studied for the first time. Argonperitoneum application has been found to improve the postoperative course by reducing pain irritation. Argon application leads to reduce analgesics consumption.

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Dissertations / Theses on the topic "Argon-37"

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Heise, Anna Christina [Verfasser], and Gerald [Akademischer Betreuer] Kirchner. "Machbarkeitsstudie zur Nutzung des Radioisotopes Argon-37 im Rahmen des Verifikationsregimes des Umfassenden Kernwaffenteststopp-Vertrags / Anna Christina Heise ; Betreuer: Gerald Kirchner." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2019. http://d-nb.info/1194547974/34.

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Zito, Antonello. "Valutazione del fondo naturale di argon-37 a fini di supporto alle ispezioni in situ nell'ambito del Trattato Internazionale per il Bando dei Test Nucleari." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Il CTBT (Trattato di Bando Complessivo dei Test Nucleari) è un accordo multilaterale tra Stati, stilato nel 1996, che impone il divieto assoluto di effettuare esplosioni di tipo nucleare, sia per scopi civili che per scopi militari, in qualsiasi ambiente. Esso prevede l'istituzione di un sistema di verifica e monitoraggio che si prefigge lo scopo di rilevare tempestivamente se in una qualsiasi parte del mondo sia stato clandestinamente effettuato un test. Tra le varie tecniche utilizzate, la più decisiva per l'identificazione di un'esplosione è data dal monitoraggio di radionuclidi, che permette di fare ipotesi su di un eventuale evento illecito di origine nucleare se in una certa regione si rileva la presenza nell'ambiente di particolari isotopi radioattivi in quantità anomale. Attualmente, il metodo più efficace consiste nell'eventuale identificazione della presenza di quattro radioisotopi di gas nobili, ovvero xeno-131m, xeno-133, xeno-133m e xeno-135. Di recente, però, gli esperti hanno cominciato a valutare l'ipotesi di effettuare misurazioni anche di un altro radioisotopo di gas nobili, ovvero l'argon-37. L'efficacia nell'utilizzo di quest'ultimo è superiore a quella che caratterizza il monitoraggio dello xeno, anche se il motivo per cui il metodo di rilevazione dell'argon non è ancora sfruttato è dato dall'estrema difficoltà che la sua misurazione comporta. Obiettivo di questo lavoro è proprio quello di analizzare le potenzialità dell'utilizzo di tale radioisotopo dell'argon per gli scopi di verifica del CTBT, di descrivere l'attuale stato dell'arte delle tecnologie disponibili per la sua misurazione e di valutare quantitativamente il fondo di argon-37 naturalmente presente, in modo da stabilire i criteri con cui si possa dire se le quantità rilevate siano compatibili con la normale presenza di tale radioisotopo oppure se siano senza dubbio dovute a un'avvenuta esplosione.

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Book chapters on the topic "Argon-37"

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Winkelmann, J. "Diffusion of argon-37 (1); argon (2)." In Gases in Gases, Liquids and their Mixtures, 711. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_442.

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Hüttner, W. "37 ArNi Nickel – argon (1/1)." In Diamagnetic Diatomic Molecules. Part 1, 58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-69954-5_39.

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Vogt, J. "37 CAr2O2 Carbon dioxide - argon (1/2)." In Asymmetric Top Molecules. Part 1, 97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10371-1_39.

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Sukhoruchkin, S. I., and Z. N. Soroko. "Neutron Resonance Parameters for Ar-37 (Argon)." In Supplement to Volume I/24, 279–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-45603-3_46.

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Sukhoruchkin, S. I., and Z. N. Soroko. "Excited Nuclear States for Ar-37 (Argon)." In Supplement to I/25 A-F, 1091–102. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-48875-1_168.

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Sukhoruchkin, S. I., and Z. N. Soroko. "Neutron Resonance Parameters for Ar-37 (Argon)." In Neutron Resonance Parameters, 376. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-87866-7_44.

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Sukhoruchkin, S. I., and Z. N. Soroko. "Excited Nuclear States for Ar-37 (Argon)." In Nuclei with Z = 1 - 29, 2248–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-22798-1_274.

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Sukhoruchkin, S. I., and Z. N. Soroko. "Excited Nuclear States for Ar-37 (Argon)." In Supplement to I/25 A-E, 795–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47801-1_155.

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Sukhoruchkin, S. I., and Z. N. Soroko. "Atomic Mass and Nuclear Binding Energy for Ar-37 (Argon)." In Nuclei with Z = 1 - 54, 1208–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-69945-3_555.

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"Argon and krypton ion lasers." In Handbook of Laser Technology and Applications (Three- Volume Set), 895–910. CRC Press, 2003. http://dx.doi.org/10.1201/noe0750309608-37.

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Conference papers on the topic "Argon-37"

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Haubold, H. J., and E. Gerth. "Short-time variations of the solar neutrino luminosity (Fourier analysis of the argon-37 production rate data)." In AIP Conference Proceedings Vol.126. AIP, 1985. http://dx.doi.org/10.1063/1.35169.

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Rozzia, Davide, Alessio Pesetti, Alessandro Del Nevo, Mariano Tarantino, and Nicola Forgione. "HERO Test Section for Experimental Investigation of Steam Generator Bayonet Tube of ALFRED." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67422.

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In the framework of Gen IV Heavy Liquid Metal Fast Reactors (HLMFRs) development, research activities are carried out for improving the Advanced Lead Fast Reactor European Demonstrator (ALFRED) project. In particular, the functioning and safety of the Steam Generator Bayonet Tube (SGBT) of ALFRED reactor (developed by ANSALDO Nucleare) needs to be experimentally investigated and numerical tools have to be verified and validated against reliable high quality data of SGBT stationary and accidental transient conditions. At the ENEA CR Brasimone, a full scale portion of the SGBT of ALFRED, composed by seven bayonet tubes arranged as triangular pitch inside a hexagonal shroud, was designed and assembled. It is called Heavy liquid mEtal-pRessurized water cOoled tube (HERO) and it was implemented as heat exchanger in the Integral Circulation Experiment (ICE) test section. The ICE-HERO test section is presently ready to be set in the large pool CIRCE facility for carrying out integral tests in Lead Bismuth Eutectic alloy (LBE) pool at about 400°C. ICE test section is equipped with a fuel pin simulator (FPS) of 37 electrically heated pin for an overall maximum thermal source of 1 MW and an argon injector above FPS for performing enhanced circulation (gas lift). The hot LBE (about 480°C) exiting from FPS moves upwards passing through the thermally insulated riser pipe and reaches an upper small tank, isolated from the outer colder LBE pool, called separator, from which descends shell side of the HERO heat exchanger and returns to the LBE pool, closing the integral circulation. The secondary side of HERO component (7 bayonet tubes) is fed by about 0.35 kg/s of water at 180 bar and 335°C. Each bayonet tube is composed by three concentric tubes. In the first (inner) tube, liquid water flows downwards in subcooled conditions and thermally insulated from outer parts. Between the first and second tube (annular cross-sectional area) water moves upwards and it is heated up to superheated steam condition. The annular gap between the second and third tube is filled by helium at 5 bar and steel powder for monitoring the possible rupture of the third or second tube and do not reduce excessively the heat transfer coefficient. The HERO component is highly instrumented for characterising the heat exchanger capabilities of the bayonet tubes in stationary and transient conditions. An overall number of 65 thermocouples are implemented, acquiring water, LBE and helium temperatures. Two pressure transducers monitor the feed water and steam line pressure. Each bayonet tube has four differential pressure transducers for measuring the pressure drops on the descending, ascending, and total water path and computing the water mass flow rate of each tube by a calibrated orifice. A Coriolis flowmeter is adopted to precisely determine the feed water mass flow rate. Moreover the signals of thermocouples, pressure transducers and bubble tubes implemented in the ICE test section will be acquired for an exhaustive analysis of the tests. A sensitivity analysis performed by RELAP5 code was carried out for defining the geometry and material to be adopted for the bayonet tube construction. The materials foreseen to be implemented have undergone modifications, AISI powder instead of SiC, air gap in place of the thermal insulating paint and AISI pipe instead of T91. The RELAP5 thermodynamic analysis predicted that the bayonet tube in updated configuration is able to provide superheated steam at about 400°C. The expected performance of HERO-TS is retained acceptable for the application to a prototypic unit and can be scaled to ALFRED.

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