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Littérature scientifique sur le sujet « Microgravity monitoring »

Auteur : Grafiati

Publié le 10 mars 2023

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Articles de revues sur le sujet "Microgravity monitoring"

Yu, Peidong, Stefan Frank-Richter, Alexander Börngen et Matthias Sperl. « Monitoring three-dimensional packings in microgravity ». Granular Matter 16, n^o 2 (21 janvier 2014) : 165–73. http://dx.doi.org/10.1007/s10035-013-0479-8.

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Williams-Jones, Glyn, Hazel Rymer, Guillaume Mauri, Joachim Gottsmann, Michael Poland et Daniele Carbone. « Toward continuous 4D microgravity monitoring of volcanoes ». GEOPHYSICS 73, n^o 6 (novembre 2008) : WA19—WA28. http://dx.doi.org/10.1190/1.2981185.

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Four-dimensional or time-lapse microgravity monitoring has been used effectively on volcanoes for decades to characterize the changes in subsurface volcanic systems. With measurements typically lasting from a few days to weeks and then repeated a year later, the spatial resolution of theses studies is often at the expense of temporal resolution and vice versa. Continuous gravity studies with one to two instruments operating for a short period of time (weeks to months) have shown enticing evidence of very rapid changes in the volcanic plumbing system (minutes to hours) and in one case precursory signals leading to eruptive activity were detected. The need for true multi-instrument networks is clear if we are to have both the temporal and spatial reso-lution needed for effective volcano monitoring. However, the high cost of these instruments is currently limiting the implementation of continuous microgravity networks. An interim approach to consider is the development of a collaborative network of researchers able to bring multiple instruments together at key volcanoes to investigate multitemporal physical changes in a few type volcanoes. However, to truly move forward, it is imperative that new low-cost instruments are developed to increase the number of instruments available at a single site. Only in this way can both the temporal and spatial integrity of monitoring be maintained. Integration of these instruments into a multiparameter network of continuously recording sensors is essential for effective volcano monitoring and hazard mitigation.

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Du, Chunhui, Changhe Yin, Hong Cheng, Feiyu Yuan et Yang Zhao. « Microgravity Monitoring in Fractured-Vuggy Carbonate Reservoirs ». Geofluids 2023 (14 janvier 2023) : 1–7. http://dx.doi.org/10.1155/2023/5034948.

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With the development of Tahe Oilfield entering the high water cut stage, gas channeling occurs in fractured-vuggy system during nitrogen injection, resulting in some inefficient wells. To improve the development effect of gas flooding, how to define the distribution of fracture, vuggy, and remaining oil has become one of the urgent problems to be solved at present. Microgravity monitoring technology uses high-quality data, the residual gravity anomaly of the target layer is obtained by depth recursion processing, the density distribution of the target layer is obtained by layer density inversion, and the fractured-vuggy distribution is depicted by edge detection. The results show that the lower part of the fractured-vuggy system in the north is connected to the middle, while the fractured-vuggy system in the south is directly connected to the middle, which leads to different effects of injected nitrogen. The early injected nitrogen in the SX area is mainly distributed in the north. Nitrogen injection in the north needs to reach a certain amount of gas before the middle can be effective. Nitrogen is injected in the south, and the central part is effective quickly. The research results provide a basis for adjusting injection-production scheme and improving reservoir development effect. Compared with the production performance and seismic interpretation results, it verifies the accuracy of ultradeep microgravity monitoring in depicting the development of fractured-vuggy system, which provides a new technology and idea for characterizing fractured-vuggy carbonate reservoirs.

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Avan, Paul, Hervé Normand, Fabrice Giraudet, Grégory Gerenton et Pierre Denise. « Noninvasive in-ear monitoring of intracranial pressure during microgravity in parabolic flights ». Journal of Applied Physiology 125, n^o 2 (1 août 2018) : 353–61. http://dx.doi.org/10.1152/japplphysiol.00032.2018.

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Among possible causes of visual impairment or headache experienced by astronauts in microgravity or postflight and that hamper their performance, elevated intracranial pressure (ICP) has been invoked but never measured for lack of noninvasive methods. The goal of this work was to test two noninvasive methods of ICP monitoring using in-ear detectors of ICP-dependent auditory responses, acoustic and electric, in acute microgravity afforded by parabolic flights. The devices detecting these responses were handheld tablets routinely used in otolaryngology for hearing diagnosis, which were customized for ICP extraction and serviceable by unskilled operators. These methods had been previously validated against invasive ICP measurements in neurosurgery patients. The two methods concurred in their estimation of ICP changes with microgravity, i.e., 11.0 ± 7.7 mmHg for the acoustic method ( n = 7 subjects with valid results out of 30, auditory responses being masked by excessive in-flight noise in 23 subjects) and 11.3 ± 10.6 mmHg for the electric method ( n = 10 subjects with valid results out of 10 tested despite the in-flight noise). These results agree with recent publications using invasive access to cerebrospinal fluid in parabolic flights and suggest that acute microgravity has a moderate average effect on ICP, similar to body tilt from upright to supine, yet with some subjects undergoing large effects whereas others seem immune. The electric in-ear method would be suitable for ICP monitoring in circumstances and with subjects such that invasive measurements are excluded. NEW & NOTEWORTHY In-ear detectors of intracranial pressure-dependent auditory responses allow intracranial pressure to be monitored noninvasively during acute microgravity. The average pressure increase during 20-s long sessions in microgravity is 11 mmHg, comparable with an effect of body tilt. However, intersubject variability is large, with subjects who repeatedly experience from nothing to twice the average effect. A systematic in-flight use would allow the relationship between space adaptation syndrome and ICP to be established or dismissed.

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BROWN, G. C., H. RYMER et D. STEVENSON. « Volcano monitoring by microgravity and energy budget analysis ». Journal of the Geological Society 148, n^o 3 (mai 1991) : 585–93. http://dx.doi.org/10.1144/gsjgs.148.3.0585.

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Smith, Thomas G., Federico Formenti, Peter D. Hodkinson, Muska Khpal, Brian P. Mackenwells et Nick P. Talbot. « Monitoring Tissue Oxygen Saturation in Microgravity on Parabolic Flights ». Gravitational and Space Research 4, n^o 2 (18 juillet 2020) : 2–7. http://dx.doi.org/10.2478/gsr-2016-0007.

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AbstractFuture spacecraft and crew habitats are anticipated to use a moderately hypobaric and hypoxic cabin atmosphere to reduce the risk of decompression sickness associated with extravehicular activity. This has raised concerns about potential hypoxia-mediated adverse effects on astronauts. Noninvasive technology for measuring tissue oxygen saturation (StO2) has been developed for clinical use and may be helpful in monitoring oxygenation during spaceflight. We conducted a technical evaluation of a handheld StO2 monitor during a series of parabolic flights, and then undertook a preliminary analysis of the data obtained during the flights from six individuals. The StO2 monitor operated normally in all gravity conditions. There was considerable variability in StO2 between and within individuals. Overall, transition to microgravity was associated with a small decrease in StO2 of 1.1±0.3%. This evaluation has established the basic function of this technology in microgravity and demonstrates the potential for exploring its use in space.

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Tahvanainen, K., E. Länsimies, P. Tikkanen, J. Hartikainen, T. Kärki, T. Lyyra et M. Mäntysaari. « Microcomputer-based monitoring of cardiovascular functions in simulated microgravity ». Advances in Space Research 12, n^o 1 (janvier 1992) : 227–36. http://dx.doi.org/10.1016/0273-1177(92)90287-8.

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Pringle, Jamie K., Peter Styles, Claire P. Howell, Michael W. Branston, Rebecca Furner et Sam M. Toon. « Long-term time-lapse microgravity and geotechnical monitoring of relict salt mines, Marston, Cheshire, U. K. » GEOPHYSICS 77, n^o 6 (1 novembre 2012) : B287—B294. http://dx.doi.org/10.1190/geo2011-0491.1.

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The area around the town of Northwich in Cheshire, U. K., has a long history of catastrophic ground subsidence caused by a combination of natural dissolution and collapsing abandoned mine workings within the underlying Triassic halite bedrock geology. In the village of Marston, the Trent and Mersey Canal crosses several abandoned salt mine workings and previously subsiding areas, the canal being breached by a catastrophic subsidence event in 1953. This canal section is the focus of a long-term monitoring study by conventional geotechnical topographic and microgravity surveys. Results of 20 years of topographic time-lapse surveys indicate specific areas of local subsidence that could not be predicted by available site and mine abandonment plan and shaft data. Subsidence has subsequently necessitated four phases of temporary canal bank remediation. Ten years of microgravity time-lapse data have recorded major deepening negative anomalies in specific sections that correlate with topographic data. Gravity 2D modeling using available site data found upwardly propagating voids, and associated collapse material produced a good match with observed microgravity data. Intrusive investigations have confirmed a void at the major anomaly. The advantages of undertaking such long-term studies for near-surface geophysicists, geotechnical engineers, and researchers working in other application areas are discussed.

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Cazzaniga, Alessandra, Fabian Ille, Simon Wuest, Carsten Haack, Adrian Koller, Christina Giger-Lange, Monica Zocchi, Marcel Egli, Sara Castiglioni et Jeanette A. Maier. « Scalable Microgravity Simulator Used for Long-Term Musculoskeletal Cells and Tissue Engineering ». International Journal of Molecular Sciences 21, n^o 23 (24 novembre 2020) : 8908. http://dx.doi.org/10.3390/ijms21238908.

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We introduce a new benchtop microgravity simulator (MGS) that is scalable and easy to use. Its working principle is similar to that of random positioning machines (RPM), commonly used in research laboratories and regarded as one of the gold standards for simulating microgravity. The improvement of the MGS concerns mainly the algorithms controlling the movements of the samples and the design that, for the first time, guarantees equal treatment of all the culture flasks undergoing simulated microgravity. Qualification and validation tests of the new device were conducted with human bone marrow stem cells (bMSC) and mouse skeletal muscle myoblasts (C2C12). bMSC were cultured for 4 days on the MGS and the RPM in parallel. In the presence of osteogenic medium, an overexpression of osteogenic markers was detected in the samples from both devices. Similarly, C2C12 cells were maintained for 4 days on the MGS and the rotating wall vessel (RWV) device, another widely used microgravity simulator. Significant downregulation of myogenesis markers was observed in gravitationally unloaded cells. Therefore, similar results can be obtained regardless of the used simulated microgravity devices, namely MGS, RPM, or RWV. The newly developed MGS device thus offers easy and reliable long-term cell culture possibilities under simulated microgravity conditions. Currently, upgrades are in progress to allow real-time monitoring of the culture media and liquids exchange while running. This is of particular interest for long-term cultivation, needed for tissue engineering applications. Tissue grown under real or simulated microgravity has specific features, such as growth in three-dimensions (3D). Growth in weightlessness conditions fosters mechanical, structural, and chemical interactions between cells and the extracellular matrix in any direction.

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Lindley, E. J., B. H. Brown, D. C. Barber, D. Grundy, R. Knowles, F. J. McArdle et A. J. Wilson. « Monitoring body fluid distribution in microgravity using impedance tomography (APT) ». Clinical Physics and Physiological Measurement 13, A (1 décembre 1992) : 181–84. http://dx.doi.org/10.1088/0143-0815/13/a/035.

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Thèses sur le sujet "Microgravity monitoring"

Kennedy, Jeffrey, Ty P. A. Ferré et Benjamin Creutzfeldt. « Time-lapse gravity data for monitoring and modeling artificial recharge through a thick unsaturated zone ». AMER GEOPHYSICAL UNION, 2016. http://hdl.handle.net/10150/622148.

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Groundwater-level measurements in monitoring wells or piezometers are the most common, and often the only, hydrologic measurements made at artificial recharge facilities. Measurements of gravity change over time provide an additional source of information about changes in groundwater storage, infiltration, and for model calibration. We demonstrate that for an artificial recharge facility with a deep groundwater table, gravity data are more sensitive to movement of water through the unsaturated zone than are groundwater levels. Groundwater levels have a delayed response to infiltration, change in a similar manner at many potential monitoring locations, and are heavily influenced by high-frequency noise induced by pumping; in contrast, gravity changes start immediately at the onset of infiltration and are sensitive to water in the unsaturated zone. Continuous gravity data can determine infiltration rate, and the estimate is only minimally affected by uncertainty in water-content change. Gravity data are also useful for constraining parameters in a coupled groundwater-unsaturated zone model (Modflow-NWT model with the Unsaturated Zone Flow (UZF) package).

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Bate, Duncan Jeremy. « Time-lapse microgravity for monitoring hydrocarbon reservoir behaviour during recovery and injection operations : implications for carbon dioxide sequestration ». Thesis, Keele University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402665.

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Livres sur le sujet "Microgravity monitoring"

United States. National Aeronautics and Space Administration., dir. Monitoring physiological variables with membrane probes : Final report, NAGW 4525. [Washington, DC : National Aeronautics and Space Administration, 1997.

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Kenol, Jules, et NASA Glenn Research Center, dir. An intelligent system for monitoring the microgravity environment quality on-board the International Space Station. [Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center, 2002.

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P, Lin Paul, et NASA Glenn Research Center, dir. Monitoring the microgravity environment quality on-board the International Space Station using soft computing techniques. [Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center, 2001.

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National Aeronautics and Space Administration (NASA) Staff. Intelligent System for Monitoring the Microgravity Environment Quality on-Board the International Space Station. Independently Published, 2018.

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Monitoring the microgravity environment quality on-board the international space station using soft computing techniques. [Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center, 2002.

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Chapitres de livres sur le sujet "Microgravity monitoring"

Rymer, H. « Microgravity monitoring ». Dans Monitoring Active Volcanoes, 217–47. London : Routledge, 2022. http://dx.doi.org/10.4324/9781003327080-8.

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Rymer, H. « Microgravity Monitoring ». Dans Monitoring and Mitigation of Volcano Hazards, 169–97. Berlin, Heidelberg : Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80087-0_5.

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Moser, M., E. Gallasch, D. Rafolt, G. Jernej, C. Kemp, E. Moser-Kneffel, T. Kenner, R. Baevskij et I. Funtowa. « Cardiovascular Monitoring in Microgravity — The Experiments PULSTRANS and SLEEP ». Dans Health from Space Research, 167–89. Vienna : Springer Vienna, 1992. http://dx.doi.org/10.1007/978-3-7091-9260-3_12.

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Albrecht, Urs-Vito, Martin Drobczyk, Christian Strowik, Andre Lübken, Jan Beringer, Jochen Rust et Ulf Kulau. « Beat to BEAT – Non-Invasive Investigation of Cardiac Function on the International Space Station ». Dans Studies in Health Technology and Informatics. IOS Press, 2022. http://dx.doi.org/10.3233/shti220669.

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This paper describes the protocol of the microgravity experiment BEAT (Ballistocardiography for Extraterrestrial Applications and Long-Term Missions). The current study makes use of signal acquisition of cardiac parameters with a high-precision Ballistocardiography (BCG)/Seismocardiography (SCG) measurement system, which is integrated in a smart shirt (SmartTex). The goal is to evaluate the feasibility of this concept for continuous wearable monitoring and wireless data transfer. BEAT is part of the “Wireless Compose-2” (WICO2) project deployed on the International Space Station (ISS) that will provide wireless network infrastructure for scientific, localization and medical experiments.

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Abdelwahab Elarref, Mohamed, Mogahed Ismail Hassan Hussein, Muhammad Jaffar Khan et Noran Mohamed Elarif. « Airway Management in Aviation, Space, and Microgravity ». Dans Special Considerations in Human Airway Managements [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96603.

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Although medical services in aviation have evolved over years based on our understanding of physiology, advancement in monitoring technology but airway management was only recently studied with a focus on space environment. The barometric pressure of ambient air declines as altitude increases, while the volume of air in a confined space will increase according to Boyle law, and therefore oxygen concentration remains at a constant 21%. Altitude sensitive equipment includes endotracheal and tracheostomy cuffs, pneumatic anti shock garments, air splints, colostomy bags, Foley catheters, orogastric and nasogastric tubes, ventilators, invasive monitors, and intra-aortic balloon pumps. The microgravity reduces the body compensation capacity for hemorrhage, while the redistribution of the blood can affect intubation by causing facial edema. Another change is the decreased gastric emptying during aviation. Acute respiratory failure, hypoxemia or inadequate ventilation and protection of the airway in a patient with impaired consciousness are common indications for advanced airway management in aviation. Airway management requires adequate training to maintain excellent medical care during aviation. Tracheal intubation using laryngoscopy would be difficult in microgravity, since the force exerted by the laryngoscope causes the head and neck move out of the field of vision by lever effect exerted on the head and generated through the laryngoscope blade by hand generating a lack of stability, resulting in the difficulty to insert the tracheal tube. While on the ground with the help of gravity, an adequate positioning of the patient is facilitated to achieve alignment of the laryngeal, pharyngeal and oral axes, which is known as sniffing position that allows visualization of the vocal cords and supraglottic structures allowing the introduction of an endotracheal tube.

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Actes de conférences sur le sujet "Microgravity monitoring"

Italiano, F., M. Antonelli, D. Marzorati, I. Loretti, A. Cremonesi et I. Giori. « Microgravity Surveys for Field Monitoring ». Dans 70th EAGE Conference and Exhibition - Workshops and Fieldtrips. European Association of Geoscientists & Engineers, 2008. http://dx.doi.org/10.3997/2214-4609.20147667.

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Matisak, B., et L. French. « Microgravity Analysis Workstation (MAWS) realtime acceleration monitoring ». Dans Space Programs and Technologies Conference. Reston, Virigina : American Institute of Aeronautics and Astronautics, 1995. http://dx.doi.org/10.2514/6.1995-3560.

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Mrlina, Jan. « Possible contribution of 4-D microgravity to reservoir monitoring ». Dans GEO 2008. European Association of Geoscientists & Engineers, 2008. http://dx.doi.org/10.3997/2214-4609-pdb.246.257.

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Supriyadi, Khumaedi, Nur Qudus, Pradana Adi Wibowo et Dino Gunawan. « Strategy implementation time lapse microgravity method for monitoring subsidence ». Dans ENGINEERING INTERNATIONAL CONFERENCE (EIC) 2016 : Proceedings of the 5th International Conference on Education, Concept, and Application of Green Technology. Author(s), 2017. http://dx.doi.org/10.1063/1.4976921.

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Liu, Yunxiang, et Wenju Zhao. « Progress in time-lapse microgravity monitoring technique and application ». Dans International Workshop and Gravity, Electrical & Magnetic Methods and their Applications, Chenghu, China, 19-22 April 2015. Society of Exploration Geophysicists and and Chinese Geophysical Society, 2015. http://dx.doi.org/10.1190/gem2015-040.

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Rybakov, M., V. Goldshmidt, L. Fleischer et Y. Rotstein. « 4‐D Microgravity : A Method for Cave Detection and Monitoring ». Dans Symposium on the Application of Geophysics to Engineering and Environmental Problems 2000. Environment and Engineering Geophysical Society, 2000. http://dx.doi.org/10.4133/1.2922764.

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Kathman, Alan D., Tammy C. Cole, Mark E. Wells, Greg Jenkins, Stan Koszelak et Alexander McPherson. « Advanced optics module for monitoring protein crystal growth in microgravity ». Dans SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, sous la direction de Firooz A. Allahdadi, Michael Chrisp, Concetto R. Giuliano, W. Pete Latham et James F. Shanley. SPIE, 1994. http://dx.doi.org/10.1117/12.177668.

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Rybakov, M., V. Goldshmidt et L. Fleischer and Y. Rotstein. « 4-D Microgravity : A Method For Cave Detection And Monitoring ». Dans 13th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2000. http://dx.doi.org/10.3997/2214-4609-pdb.200.2000_043.

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Mrlina, J. « Monitoring of Reservoir Fluids Movement Based on Time-Lapse Microgravity Observations ». Dans IOR 2007 - 14th European Symposium on Improved Oil Recovery. European Association of Geoscientists & Engineers, 2007. http://dx.doi.org/10.3997/2214-4609-pdb.24.b24.

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Liu, Y., W. Zhao, G. Xu, W. Hu et L. Zhao. « Application of Time-lapse Microgravity Method in Gas Reservoir Development Monitoring ». Dans 81st EAGE Conference and Exhibition 2019. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201901100.

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