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2. In-situ coating of silicon-rich films on tokamak plasma-facing components with real-time Si material injection

Author

Effenberg, Florian, Abe, Shota, Sinclair, Gregory, Abrams, Tyler, Bortolon, Alessandro, Wampler, William R., Laggner, Florian M., Rudakov, Dmitry L., Bykov, Igor, Lasnier, Charles J., Mauzey, David, Nagy, Alexander, Nazikian, Raffi, Scotti, Filippo, Wang, Huiqian, Wilcox, Robert S., and Team, the DIII-D

Subjects
Physics - Plasma Physics, Condensed Matter - Materials Science
Abstract

Experiments have been conducted in the DIII-D tokamak to explore the in-situ growth of silicon-rich layers as a potential technique for real-time replenishment of surface coatings on plasma-facing components (PFCs) during steady-state long-pulse reactor operation. Silicon (Si) pellets of 1 mm diameter were injected into low- and high-confinement (L-mode and H-mode) plasma discharges with densities ranging from $3.9-7.5\times10^{19}$ m$^{-3}$ and input powers ranging from $5.5-9$ MW. The small Si pellets were delivered with the impurity granule injector (IGI) at frequencies ranging from 4-16 Hz corresponding to mass flow rates of $5-19$ mg/s ($1-4.2\times10^{20}$ Si/s) at cumulative amounts of up to 34 mg of Si per five-second discharge. Graphite samples were exposed to the scrape-off layer and private flux region plasmas through the divertor material evaluation system (DiMES) to evaluate the Si deposition on the divertor targets. The Si II emission at the sample correlates with silicon injection and suggests net surface Si-deposition in measurable amounts. Post-mortem analysis showed Si-rich coatings containing silicon oxides, of which SiO$_2$ is the dominant component. No evidence of SiC was found, which is attributed to low divertor surface temperatures. The in-situ and ex-situ analysis found that Si-rich coatings of at least $0.4-1.2$ nm thickness have been deposited at $0.4-0.7$ nm/s. The technique is estimated to coat a surface area of at least 0.94 m$^2$ on the outer divertor. These results demonstrate the potential of using real-time material injection to form Si-enriched layers on divertor PFCs during reactor operation., Comment: Florian Effenberg et al 2023 Nucl. Fusion in press https://doi.org/10.1088/1741-4326/acee98

Published
2023
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4. DIII-D research to provide solutions for ITER and fusion energy

Author

C.T. Holcomb, for the DIII-D Team:, J. Abbate, A. Abe, A. Abrams, P. Adebayo-Ige, S. Agabian, S. Ahmed, N. Aiba, N. Akcay, T. Akiyama, R. Albosta, P. Aleynikov, S. Allen, H. Anand, J. Anderson, Y. Andrew, M. Ashburn, A. Ashourvan, M. Austin, G. Avdeeva, D. Ayala, M. Ayub, E. Bagdy, S. Banerjee, K. Barada, L. Bardoczi, O. Bardsley, J. Barr, E. Bass, A. Battey, Z. Bayler, L. Baylor, T. Bechtel, M. Beidler, E. Belli, T. Benedett, Z. Bergstrom, M. Berkel, T. Bernard, N. Bertelli, R. Bielajew, G. Bodner, J. Boedo, R. Boivin, T. Bolzonella, P. Bonoli, A. Bortolon, S. Bose, M. Boyer, W. Boyes, L. Bradley, R. Brambila, A. Braun, D. Brennan, S. Bringuier, L. Brodsky, M. Brookman, J. Brooks, D. Brower, W. Brown, J. Buck, S. Buczek, D. Burgess, M. Burke, K. Burrell, J. Butt, R. Buttery, I. Bykov, P. Byrne, A. Cacheris, K. Callahan, J. Callen, D. Campbell, J. Candy, J. Canik, L. Cappelli, T. Carlstrom, R. Carr, W. Carrig, B. Carter, T. Carter, I. Carvalho, W. Cary, L. Casali, L. Ceelen, M. Cengher, M. Cha, R. Chaban, V. Chan, B. Chapman, I. Char, J. Chen, R. Chen, X. Chen, Y. Chen, J. Chiriboga, E. Cho, G. Choi, W. Choi, H. Choudhury, S. Chowdhury, C. Chrystal, Y. Chung, R. Churchill, R. Clark, M. Clement, J. Coburn, S. Coda, R. Coffee, C. Collins, J. Colmenares-Fernandez, W. Conlin, R. Coon, T. Cote, A. Creely, N. Crocker, C. Crowe, B. Crowley, T. Crowley, M. Curie, D. Curreli, A. Dal Molin, J. Damba, E. Dart, A. Dautt-Silva, K. Davda, A. De, N. de Boucaud, Y. de Jong, P. DE VRIES, A. de-Villeroche, G. DeGrandchamp, J. deGrassie, D. Demers, S. Denk, E. DeShazer, S. Di Genova, A. Diallo, A. Dimits, R. Ding, S. Ding, D. Donovan, X. Du, J. Dunsmore, A. Dupuy, J. Duran, A. Dvorak, F. Effenberg, N. Eidietis, D. Elder, D. Eldon, Y. Elsey, D. Ennis, K. Erickson, D. Ernst, M. Fajardo, H. Farre-Kaga, M. Fenstermacher, N. Ferraro, J. Ferron, A. Feyrer, P. Fimognari, R. Finden, D. Finkenthal, R. Fitzpatrick, S. Flanagan, B. Ford, W. Fox, S. Freiberger, L. Fu, K. Gage, V. Gajaraj, I. Garcia, F. Garcia, A. Garcia, M. Garcia Munoz, D. Garnier, A. Garofalo, A. Gattuso, B. Geiger, K. Gentle, Y. Ghai, K. Gill, F. Glass, P. Gohil, X. Gong, J. Gonzalez-Martin, Y. Gorelov, V. Graber, R. Granetz, C. Gray, C. Greenfield, B. Grierson, R. Groebner, W. Grosnickle, M. Groth, S. Gu, H. Guo, J. Guterl, W. Guttenfelder, R. Hager, S. Hahn, M. Halfmoon, J. Hall, V. Hall-Chen, F. Halpern, G. Hammett, X. Han, C. Hansen, E. Hansen, J. Hanson, M. Hanson, A. Harris, R. Harvey, S. Haskey, D. Hatch, W. Hayashi, A. Hayes, W. Heidbrink, J. Herfindal, J. Hicok, E. Hinson, T. Hisakado, C. Holcomb, C. Holland, L. Holland, E. Hollmann, A. Holm, I. Holmes, K. Holtrop, R. Hong, R. Hood, L. Horvath, S. Houshmandyar, N. Howard, E. Howell, W. Hu, Y. Hu, Q. Hu, Y. Huang, J. Huang, A. Huang, A. Hubbard, J. Hughes, D. Humphreys, J. Hurtado, A. Hyatt, K. Imada, V. Izzo, A. Jalalvand, S. Jardin, A. Jarvinen, Y. Jeon, H. Ji, X. Jian, L. Jian, Y. Jiang, C. Johnson, J. Johnson, M. Jones, S. Joung, P. Jouzdani, E. Jung, E. Kallenberg, R. Kalling, D. Kaplan, A. Kaptanoglu, D. Kellman, J. Kennedy, F. Khabanov, J. Kim, H. Kim, E. Kim, S. Kim, K. Kim, C. Kim, T. Kim, J. King, A. Kinsey, D. Kirk, D. Klasing, A. Kleiner, M. Knolker, M. Kochan, B. Koel, J. Koenders, M. Koepke, R. Kolasinski, E. Kolemen, E. Kostadinova, M. Kostuk, G. Kramer, R. Kube, N. Kumar, R. La Haye, F. Laggner, C. Lahban, H. Lan, R. Landry, R. Lantsov, L. Lao, C. Lasnier, C. Lau, R. Leccacorvi, J. Leddy, M. Lee, S. Lee, K. Lee, R. Lee, M. Lehnen, A. Leonard, E. Leppink, M. LeSher, J. Lestz, J. Leuer, N. Leuthold, G. Li, X. Li, Y. Li, L. Li, N. Li, Z. Li, D. Lin, Z. Lin, Y. Lin, E. Linsenmayer, J. Liu, D. Liu, C. Liu, Z. Liu, Y. Liu, A. Loarte-Prieto, S. Loch, L. LoDestro, N. Logan, J. Lohr, J. Lore, U. Losada Rodriguez, J. Loughran, M. Lowell, T. Luce, N. Luhmann, P. Lunia, R. Lunsford, L. Lupin-Jimenez, A. Lvovskiy, B. Lyons, X. Ma, J. MacDonald, T. Macwan, R. Maingi, M. Major, L. Malhotra, M. Margo, C. Marini, A. Marinoni, A. Maris, E. Martin, J. Mateja, R. Mattes, R. Maurizio, D. Mauzey, L. McAllister, G. McArdle, J. McClenaghan, K. McCollam, G. McKee, K. McLaughlin, A. McLean, V. Mehta, E. Meier, S. Meitner, J. Menard, O. Meneghini, G. Merlo, S. Messer, W. Meyer, C. Michael, D. Miller, M. Miller, J. Mitchell, E. Mitra, C. Moeller, M. Mohamed, S. Molesworth, K. Montes, S. Mordijck, S. Morosohk, A. Moser, D. Mueller, S. Munaretto, C. Murphy, C. Muscatello, R. Myers, A. Nagy, D. Nath, M. Navarro, R. Nazikian, T. Neiser, A. Nelson, P. Nesbet, F. Nespoli, P. Nguyen, D. Nguyen, R. Nguyen, J. Nichols, M. Nocente, L. Nuckols, R. Nygren, T. Odstrcil, M. Okabayashi, E. Olofsson, D. Orlov, D. Orozco, N. Osborne, T. Osborne, F. OShea, D. Pace, D. Packard, A. Pajares Martinez, C. Pakosta, C. Pan, M. Pandya, D. Panici, A. Pankin, Y. Park, J. Park, C. Parker, S. Parker, P. Parks, M. Parsons, S. Paruchuri, C. Paz-Soldan, T. Pederson, W. Peebles, B. Penaflor, E. Perez, L. Periasamy, R. Perillo, C. Petty, M. Pharr, D. Pierce, C. Pierren, S. Pierson, A. Pigarov, L. Pigatto, D. Piglowski, S. Pinches, R. Pinsker, R. Pitts, J. Pizzo, M. Podesta, Z. Popovic, M. Porkolab, Q. Pratt, G. Prechel, I. Pusztai, P. Puthan-Naduvakkate, J. Qian, X. Qin, O. Ra, T. Raines, K. Rakers, K. Rath, J. Rauch, C. Rea, R. Reed, A. Reiman, M. Reinke, R. Reksoatmodjo, Q. Ren, J. Ren, Y. Ren, M. Rensink, T. Rhodes, N. Richner, J. Ridzon, G. Riggs, J. Riquezes, P. Rodriguez Fernandez, T. Rognlien, G. Ronchi, L. Rondini, R. Rosati, A. Rosenthal, M. Ross, J. Rost, A. Rothstein, J. Roveto, J. Ruane, D. Rudakov, R. Rupani, G. Rutherford, S. Sabbagh, J. Sachdev, N. Sadeghi, A. Salmi, F. Salvador, B. Sammuli, C. Samuell, A. Sandorfi, C. Sang, D. Santa, J. Sarff, O. Sauter, H. Savelli, C. Schaefer, H. Schamis, J. Schellpfeffer, D. Schissel, L. Schmitz, O. Schmitz, P. Schroeder, K. Schultz, E. Schuster, F. Sciortino, F. Scotti, J. Scoville, A. Seltzman, J. Seo, J. Serrano, I. Sfiligoi, M. Shafer, R. Shapov, H. Shen, N. Shi, D. Shiraki, B. Short, R. Shousha, H. Si, C. Sierra, G. Sinclair, P. Sinha, G. Sips, C. Skinner, T. Slendebroek, J. Slief, R. Smirnov, S. Smith, D. Smith, G. Snoep, P. Snyder, W. Solomon, X. Song, A. Sontag, V. Soukhanovskii, D. Spong, J. Squire, G. Staebler, L. Stagner, T. Stange, P. Stangeby, E. Starling, S. Stewart, T. Stoltzfus-Dueck, S. Storment, E. Strait, D. Su, L. Sugiyama, P. Sun, Y. Sun, X. Sun, C. Sung, W. Suttrop, Y. Suzuki, R. Sweeney, B. Taczak, Y. Takemura, S. Tang, W. Tang, G. Tardini, D. Taussig, K. Teixeira, K. Thackston, D. Thomas, K. Thome, Y. Tinguely, M. Tobin, J. Tooker, A. Torrezan de Sousa, P. Traverso, G. Trevisan, E. Trier, D. Truong, C. Tsui, F. Turco, A. Turnbull, L. Turner, E. Unterberg, B. Van Compernolle, R. van Kampen, M. Van Zeeland, B. Victor, R. Vieira, E. Viezzer, S. Vincena, D. Vollmer, J. Wai, M. Walker, R. Waltz, W. Wampler, L. Wang, Y. Wang, H. Wang, Z. Wang, G. Wang, A. Wang, J. Watkins, M. Watkins, T. Watts, L. Webber, K. Weber, W. Wehner, X. Wei, D. Weisberg, A. Welander, A. Welsh, A. White, R. Wilcox, G. Wilkie, T. Wilks, M. Willensdorfer, H. Wilson, A. Wingen, M. Wu, D. Wu, S. Wukitch, J. Xia, R. Xie, Z. Xing, G. Xu, X. Xu, Z. Yan, X. Yang, L. Yang, S. Yang, J. Yang, M. Yoo, G. YU, J. Yu, A. Zalzali, A. Zamengo, V. Zamkovska, S. Zamperini, K. Zarrabi, E. Zeger, K. Zeller, L. Zeng, X. Zhang, J. Zhang, B. Zhang, B. Zhao, C. Zhao, Y. Zheng, Y. Zhu, J. Zhu, J. Ziegel, J. Zimmerman, and C. Zuniga

Subjects
DIII-D, tokamak, overview, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

The DIII-D tokamak has elucidated crucial physics and developed projectable solutions for ITER and fusion power plants in the key areas of core performance, boundary heat and particle transport, and integrated scenario operation, with closing the core-edge integration knowledge gap being the overarching mission. New experimental validation of high-fidelity, multi-channel, non-linear gyrokinetic turbulent transport models for ITER provides strong confidence it will achieve Q ⩾ 10 operation. Experiments identify options for easing H-mode access in hydrogen, and give new insight into the isotopic dependence of transport and confinement. Analysis of 2,1 islands in unoptimized low-torque IBS demonstration discharges suggests their onset time occurs randomly in the constant β phase, most often triggered by non-linear 3-wave coupling, thus identifying an NTM seeding mechanism to avoid. Pure deuterium SPI for disruption mitigation is shown to provide favorable slow cooling, but poor core assimilation, suggesting paths for improved SPI on ITER. At the boundary, measured neutral density and ionization source fluxes are strongly poloidally asymmetric, implying a 2D treatment is needed to model pedestal fuelling. Detailed measurements of pedestal and SOL quantities and impurity charge state radiation in detached divertors has validated edge fluid modelling and new self-consistent ‘pedestal-to-divertor’ integrated modeling that can be used to optimize reactors. New feedback adaptive ELM control minimizes confinement reduction, and RMP ELM suppression with sustained high core performance was obtained for the first time with the outer strike point in a W-coated, compact and unpumped small-angle slot divertor. Advances have been made in integrated operational scenarios for ITER and power plants. Wide pedestal intrinsically ELM-free QH-modes are produced with more reactor-relevant conditions, Low torque IBS with W-equivalent radiators can exhibit predator-prey oscillations in T _e and radiation which need control. High- β _P scenarios with q _min > 2, q _95 –7.9, β _N > 4, β _T –3.3% and H _98y2 > 1.5 are sustained with high density ( $\bar n$ = 7E19 m ^−3 , f _G –1) for 6 τ _E , improving confidence in steady-state tokamak reactors. Diverted NT plasmas achieve high core performance with a non-ELMing edge, offering a possible highly attractive core-edge integration solution for reactors.

Published
2024
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5. In-situ coating of silicon-rich films on tokamak plasma-facing components with real-time Si material injection

Author

F. Effenberg, S. Abe, G. Sinclair, T. Abrams, A. Bortolon, W.R. Wampler, F.M. Laggner, D.L. Rudakov, I. Bykov, C.J. Lasnier, D. Mauzey, A. Nagy, R. Nazikian, F. Scotti, H.Q. Wang, R.S. Wilcox, and the DIII-D Team

Subjects
siliconization, plasma-facing components, erosion, silicon oxide, divertor, material migration, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Experiments have been conducted in the DIII-D tokamak to explore the in-situ growth of silicon-rich layers as a potential technique for real-time replenishment of surface coatings on plasma-facing components (PFCs) during steady-state long-pulse reactor operation. Silicon (Si) pellets of 1 mm diameter were injected into low- and high-confinement (L-mode and H-mode) plasma discharges with densities ranging from 3.9– $7.5\times10^{19}$ m ^−3 and input powers ranging from 5.5 to 9 MW. The small Si pellets were delivered with the impurity granule injector at frequencies ranging from 4 to 16 Hz corresponding to mass flow rates of 5–19 mg s ^−1 (1– $4.2\times10^{20}$ Si s ^−1 ) at cumulative amounts of up to 34 mg of Si per five-second discharge. Graphite samples were exposed to the scrape-off layer and private flux region plasmas through the divertor material evaluation system to evaluate the Si deposition on the divertor targets. The Si II emission at the sample correlates with silicon injection and suggests net surface Si-deposition in measurable amounts. Post-mortem analysis showed Si-rich coatings containing silicon oxides, of which SiO _2 is the dominant component. No evidence of SiC was found, which is attributed to low divertor surface temperatures. The in-situ and ex-situ analysis found that Si-rich coatings of at least 0.4–1.2 nm thickness have been deposited at 0.4–0.7 nm s ^−1 . The technique is estimated to coat a surface area of at least 0.94 m ^2 on the outer divertor. These results demonstrate the potential of using real-time material injection to form Si-enriched layers on divertor PFCs during reactor operation.

Published
2023
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6. Towards uniform benefit-cost analysis for smart grid projects: an example using the Smart Grid Computational Tool:

Author

Karali, Nihan, Marnay, Chris, Yan, Tyler, He, Gang, Yinger, Robert, Mauzey, Josh, Clampitt, Kevin, and Zhu, Han

Abstract

Smart grid technology is being rolled out around the world, with the United States nearing completion of a particularly significant 4 plus billion-dollar Federal program funded under the American Recovery and Reconstruction Act (2009). Under the Climate Change Working Group Implementation Plan, Smart Grid activity comparative analyses are being conducted of benefits estimation methods with example applications to 4 case study smart grid projects, 2 in each country. In this first study, three of eight Southern California Edison’s Irvine Smart Grid Demonstration Project sub-project benefits have been analysed over the period 2010-2035. The analysis uses the Smart Grid Computational Tool (SGCT) developed by Navigant Consulting Inc. for the U.S. Department of Energy based on Electric Power Research Institute methods. Results show significant benefits potential for technologies such as distribution voltage and VAR control and utility-scale batteries, while a 22-residence zero net energy home demonstration inspired by California’s 2020 residential energy efficiency standard falls far short of economic breakeven at the current stage of costs and technology performance. The experience gathered indicates the SGCT being intended for widespread U.S. smart grid evaluation use is necessarily simple, and consequently has limited applicability for international applications or comparisons.

Published
2015

7. Overview of DIII-D off-axis neutral beam project

Author

Murphy, CJ, Abrahim, M, Anderson, PM, Chiu, HK, Grunloh, HJ, Hansink, MJ, Holtrop, KL, Hong, RM, Kellman, AG, Kellman, DH, Mauzey, PS, Noraky, S, Pawley, CJ, Rauch, J, Scoville, JT, Van Zeeland, MA, Yip, HH, Wood, RL, Murakami, M, Park, JM, and Heidbrink, WW

Abstract

DIII-D has four neutral beamlines (NB). Each of these beamlines has two ion sources, each of which injects up to 2.5 MW for 3 s. These beamlines intersect the vacuum vessel at an angle of 19.5 deg off from radial, enabling current drive in the same direction as the plasma current (co-injection). In 2004, one of these beamlines (210 deg) was rotated to provide counter-injection (opposite of plasma current). A different beamline (150 deg) has been modified to have the capability to provide off-axis neutral beam current drive. The goal of the off-axis injection is to have the center of the ion sources aimed at a position 40 cm below the geometric center of the plasma. To achieve this off-axis injection, the beamline requires a mechanical lifting system that can elevate the beamline up to 16.5 deg from horizontal. The beamline also requires more strongly vertically focused ion sources (in order to pass the beam through a reduced effective aperture) as well as modified internal components. Additionally, the design of the new internal components incorporated modifications to allow for the doubling of ion source pulse lengths without the need for active cooling. This paper discusses the various beamline system design requirements for off-axis injection, as well as the results from the actual commissioning of the beamline. Overviews of the design and performance of mechanical lifting system (hydraulics and controls), focused ion sources, flexible beamline support systems (vacuum, cryogenic, power and water cooling), and internal beamline collimators are included. Additionally, the in-vessel monitoring and shine-through protection requirements are discussed. The actual data obtained during beamline commissioning and during normal physics operations is also presented. © 2011 IEEE.

Published
2011

8. Overview of DIII-D Off-Axis Neutral Beam Project**This work supported in part by the U.S. Department of Energy under DEFC02-04ER54698, DE-AC02-09CHI1466, DE-AC05-000R22725 and SC-G903402.

Author

Murphy, CJ, Abrahim, M, Anderson, PM, Chiu, HK, Grunloh, HJ, Hansink, MJ, Holtrop, KL, Hong, R-M, Kellman, AG, Kellman, DH, Mauzey, PS, Noraky, S, Pawley, CJ, Rauch, J, Scoville, JT, Van Zeeland, MA, Yip, HH, Wood, RL, Murakami, M, Park, JM, and Heidbrink, WW

Abstract

DIII-D has four neutral beamlines (NB). Each of these beamlines has two ion sources, each of which injects up to 2.5 MW for 3 s. These beamlines intersect the vacuum vessel at an angle of 19.5 deg off from radial, enabling current drive in the same direction as the plasma current (co-injection). In 2004, one of these beamlines (210 deg) was rotated to provide counter-injection (opposite of plasma current). A different beamline (150 deg) has been modified to have the capability to provide off-axis neutral beam current drive. The goal of the off-axis injection is to have the center of the ion sources aimed at a position 40 cm below the geometric center of the plasma. To achieve this off-axis injection, the beamline requires a mechanical lifting system that can elevate the beamline up to 16.5 deg from horizontal. The beamline also requires more strongly vertically focused ion sources (in order to pass the beam through a reduced effective aperture) as well as modified internal components. Additionally, the design of the new internal components incorporated modifications to allow for the doubling of ion source pulse lengths without the need for active cooling. This paper discusses the various beamline system design requirements for off-axis injection, as well as the results from the actual commissioning of the beamline. Overviews of the design and performance of mechanical lifting system (hydraulics and controls), focused ion sources, flexible beamline support systems (vacuum, cryogenic, power and water cooling), and internal beamline collimators are included. Additionally, the in-vessel monitoring and shine-through protection requirements are discussed. The actual data obtained during beamline commissioning and during normal physics operations is also presented. © 2011 IEEE.

Published
2011

9. Integration of distributed generation systems into generic types of commercial buildings in California

Author

Medrano, M, Brouwer, J, McDonell, V, Mauzey, J, and Samuelsen, S

Subjects
Affordable and Clean Energy, distributed generation, fuel cells, micro-turbine generators, photovoltaic arrays, emissions, absorption cooling, energy efficiency measures, load profiles, building energy simulation, Engineering, Built Environment and Design, Building & Construction
Abstract

Distributed generation (DG) of combined cooling, heat, and power (CCHP) has been gaining momentum in recent years as an efficient, secure alternative for meeting increasing power demands in the world. One of the most critical and emerging markets for DG-CCHP systems is commercial and institutional buildings. The present study focuses analysis on the main economic, energy-efficiency, and environmental impacts of the integration of three types of advanced DG technologies (high-temperature fuel cells, micro-turbines, and photovoltaic solar panels) into four types of representative generic commercial building templates (small office building, medium office building, hospital, and college/school) in southern California (e.g., mild climate), using eQUEST as energy simulation tool. Detailed load profiles for the four commercial building types during times of peak electric and peak gas consumption were analyzed and complementary strategies to further increase overall building energy efficiencies such as energy efficiency measures (e.g., day lighting, exterior shading, improved HVAC performance) and thermally activated absorption cooling were also investigated. Results show that the high-temperature fuel cell (HTFC) performance is best matched with the hospital energy loads, resulting in a 98% DG capacity factor, 85% DG heat recovery factor, and $860,000 in energy savings (6 years payback). The introduction of thermally driven double-effect absorption cooling (AC) in the college building with HTFC reduces significantly the building electricity-to-thermal load ratio and boosts the heat recovery factor from 37% to 97%. © 2007.

Published
2008

10. Theoretical Analysis Of A Novel Integrated Energy System Formed By A Microturbine And A Exhaust Fired Single-Double Effect Absorption Chiller

Author

Samuelsen, GS, Medrano, M, Mauzey, JL, McDonell, VG, and Boer, D

Subjects
Absorption chiller, Distributed generation, Exhaust fired chiller, Integrated energy systems, Microturbine, Single double effect absorption cycle, Thermally activated technologies, Energy
Abstract

Integrated Energy Systems (IES) combine a distributed power generation system (DG) such as a microturbine generator (MTG) or a fuel cell with thermally activated technologies (TAT) such as absorption cooling. This integration maximizes the efficiency of energy use by utilizing on-site most of the waste heat generated by DG, and reduces harmful emissions to the environment. This study investigates the energy and exergy performance of an IES. This system is comprised of an MTG with internal recuperator and a novel absorption cooling cycle. The absorption cycle is a single-double effect exhaust fired cycle, which recuperates the heat exchanged from the MTG exhaust gases using two generators at two different levels of temperature. The selection of the DG element, the TAT element and their internal configurations is based upon a real IES commercial unit that has been tested in the APEP-UCI DG testing facilities in Irvine, California. This unit has an electrical power capacity of 28 kW and a cooling capacity of 14 refrigeration tons (49.2 kW). Inputs for the thermodynamic models developed for the MTG and for the absorption cycle are derived from experimental variables that will be controlled in the testing phase. The MTG model is using empirical correlations for key model parameters (pressure ratio, turbine inlet temperature, etc.) from previous studies in order to predict the observed change in performance with part load operation. The calculated mass flow rate and temperature of the exhaust gases are inputs for the absorption cycle model, together with cooling and chilled water inlet temperatures and flow rates. Heat and mass transfer efficiencies along with heat transfer coefficients for the suite of heat exchangers comprising the single-double effect absorption cycle are determined from proprietary testing data provided by the manufacturers.

Published
2006

11. Analysis of stationary fuel cell dynamic ramping capabilities and ultra capacitor energy storage using high resolution demand data

Author

Meacham, James R, Jabbari, Faryar, Brouwer, Jacob, Mauzey, Josh L, and Samuelsen, G Scott

Subjects
Affordable and Clean Energy, dynamic, fuel cell, ramping, ultra capacitor, load following, Chemical Sciences, Engineering, Energy
Abstract

Current high temperature fuel cell (HTFC) systems used for stationary power applications (in the 200-300 kW size range) have very limited dynamic load following capability or are simply base load devices. Considering the economics of existing electric utility rate structures, there is little incentive to increase HTFC ramping capability beyond 1 kWs-1 (0.4% s-1). However, in order to ease concerns about grid instabilities from utility companies and increase market adoption, HTFC systems will have to increase their ramping abilities, and will likely have to incorporate electrical energy storage (EES). Because batteries have low power densities and limited lifetimes in highly cyclic applications, ultra capacitors may be the EES medium of choice. The current analyses show that, because ultra capacitors have a very low energy storage density, their integration with HTFC systems may not be feasible unless the fuel cell has a ramp rate approaching 10 kWs-1 (4% s-1) when using a worst-case design analysis. This requirement for fast dynamic load response characteristics can be reduced to 1 kWs-1 by utilizing high resolution demand data to properly size ultra capacitor systems and through demand management techniques that reduce load volatility. © 2005 Elsevier B.V. All rights reserved.

Published
2006

12. Experiences with microturbine generator systems installed in the south coast air quality management district

Author

McDonell, VG, Hack, RL, Lee, SW, Mauzey, JL, Wojciechowski, JS, and Samuelsen, GS

Abstract

A comprehensive field data collection campaign is reported on in which operational data are being obtained from microturbine generators located in the South Coast Air Quality Management District (AQMD). The data obtained are archived in a SQL database, which provides the ability to look at various performance aspects as a function of many parameters interactively on the Internet. An overview of the program is provided along with details regarding the data collection and archiving strategies. To provide a framework relative to optimal operation of these systems in the region, economics associated with various operational schedules as a function of various rate structures in Southern California are provided. In addition to quantitative operational characteristics and performance results, some general end-user impressions of the technology and of the overall installation process are also documented. Details from three representative sites are presented.

Published
2003

13. Problem Solving Ability Confidence Levels among Student Teachers after a Semester in the Classroom

Author

Krug, Kevin, Love, John, Mauzey,, and Dixon, Wayne

Abstract

Subjective confidence for solving classroom problems while instructing students in appropriate academic material is crucial for effective teaching. One way to develop problem solving confidence may result from the semester most education majors spend in the classroom as student teachers. The problem solving inventory (PSI) was given to university education majors in a pretest-posttest format where they responded before and after the completion of student teaching. Analyses indicated the student teachers thought they had more confidence for problem solving during the posttest condition as indicated by significance on the PSI's subscales. The semester spent in the classroom as a student teacher plays an essential role in the development of the necessary subjective confidence for solving classroom problems.

Published
2015

14. DIII-D research advancing the physics basis for optimizing the tokamak approach to fusion energy

Author

M. E. Fenstermacher, J. Abbate, S. Abe, T. Abrams, M. Adams, B. Adamson, N. Aiba, T. Akiyama, P. Aleynikov, E. Allen, S. Allen, H. Anand, J. Anderson, Y. Andrew, T. Andrews, D. Appelt, R. Arbon, N. Ashikawa, A. Ashourvan, M. Aslin, Y. Asnis, M. Austin, D. Ayala, J. Bak, I. Bandyopadhyay, S. Banerjee, K. Barada, L. Bardoczi, J. Barr, E. Bass, D. Battaglia, A. Battey, W. Baumgartner, L. Baylor, J. Beckers, M. Beidler, E. Belli, J. Berkery, T. Bernard, N. Bertelli, M. Beurskens, R. Bielajew, S. Bilgili, B. Biswas, S. Blondel, J. Boedo, I. Bogatu, R. Boivin, T. Bolzonella, M. Bongard, X. Bonnin, P. Bonoli, M. Bonotto, A. Bortolon, S. Bose, N. Bosviel, S. Bouwmans, M. Boyer, W. Boyes, L. Bradley, R. Brambila, D. Brennan, S. Bringuier, L. Brodsky, M. Brookman, J. Brooks, D. Brower, G. Brown, W. Brown, M. Burke, K. Burrell, K. Butler, R. Buttery, I. Bykov, P. Byrne, A. Cacheris, K. Callahan, J. Callen, G. Campbell, J. Candy, J. Canik, P. Cano-Megias, N. Cao, L. Carayannopoulos, T. Carlstrom, W. Carrig, T. Carter, W. Cary, L. Casali, M. Cengher, G. Cespedes Paz, R. Chaban, V. Chan, B. Chapman, I. Char, A. Chattopadhyay, R. Chen, J. Chen, X. Chen, M. Chen, Z. Chen, M. Choi, W. Choi, G. Choi, L. Chousal, C. Chrobak, C. Chrystal, Y. Chung, R. Churchill, M. Cianciosa, J. Clark, M. Clement, S. Coda, A. Cole, C. Collins, W. Conlin, A. Cooper, J. Cordell, B. Coriton, T. Cote, J. Cothran, A. Creely, N. Crocker, C. Crowe, B. Crowley, T. Crowley, D. Cruz-Zabala, D. Cummings, M. Curie, D. Curreli, A. Dal Molin, B. Dannels, A. Dautt-Silva, K. Davda, G. De Tommasi, P. De Vries, G. Degrandchamp, J. Degrassie, D. Demers, S. Denk, S. Depasquale, E. Deshazer, A. Diallo, S. Diem, A. Dimits, R. Ding, S. Ding, W. Ding, T. Do, J. Doane, G. Dong, D. Donovan, J. Drake, W. Drews, J. Drobny, X. Du, H. Du, V. Duarte, D. Dudt, C. Dunn, J. Duran, A. Dvorak, F. Effenberg, N. Eidietis, D. Elder, D. Eldon, R. Ellis, W. Elwasif, D. Ennis, K. Erickson, D. Ernst, M. Fasciana, D. Fedorov, E. Feibush, N. Ferraro, J. Ferreira, J. Ferron, P. Fimognari, D. Finkenthal, R. Fitzpatrick, P. Fox, W. Fox, L. Frassinetti, H. Frerichs, H. Frye, Y. Fu, K. Gage, J. Galdon Quiroga, A. Gallo, Q. Gao, A. Garcia, M. Garcia Munoz, D. Garnier, A. Garofalo, A. Gattuso, D. Geng, K. Gentle, D. Ghosh, L. Giacomelli, S. Gibson, E. Gilson, C. Giroud, F. Glass, A. Glasser, D. Glibert, P. Gohil, R. Gomez, S. Gomez, X. Gong, E. Gonzales, A. Goodman, Y. Gorelov, V. Graber, R. Granetz, T. Gray, D. Green, C. Greenfield, M. Greenwald, B. Grierson, R. Groebner, W. Grosnickle, M. Groth, H. Grunloh, S. Gu, W. Guo, H. Guo, P. Gupta, J. Guterl, W. Guttenfelder, T. Guzman, S. Haar, R. Hager, S. Hahn, M. Halfmoon, T. Hall, K. Hallatschek, F. Halpern, G. Hammett, H. Han, E. Hansen, C. Hansen, M. Hansink, J. Hanson, M. Hanson, G. Hao, A. Harris, R. Harvey, S. Haskey, E. Hassan, A. Hassanein, D. Hatch, R. Hawryluk, W. Hayashi, W. Heidbrink, J. Herfindal, J. Hicok, D. Hill, E. Hinson, C. Holcomb, L. Holland, C. Holland, E. Hollmann, J. Hollocombe, A. Holm, I. Holmes, K. Holtrop, M. Honda, R. Hong, R. Hood, A. Horton, L. Horvath, M. Hosokawa, S. Houshmandyar, N. Howard, E. Howell, D. Hoyt, W. Hu, Y. Hu, Q. Hu, J. Huang, Y. Huang, J. Hughes, T. Human, D. Humphreys, P. Huynh, A. Hyatt, C. Ibanez, L. Ibarra, R. Icasas, K. Ida, V. Igochine, Y. In, S. Inoue, A. Isayama, O. Izacard, V. Izzo, A. Jackson, G. Jacobsen, A. Jaervinen, A. Jalalvand, J. Janhunen, S. Jardin, H. Jarleblad, Y. Jeon, H. Ji, X. Jian, E. Joffrin, A. Johansen, C. Johnson, T. Johnson, C. Jones, I. Joseph, D. Jubas, B. Junge, W. Kalb, R. Kalling, C. Kamath, J. Kang, D. Kaplan, A. Kaptanoglu, S. Kasdorf, J. Kates-Harbeck, P. Kazantzidis, A. Kellman, D. Kellman, C. Kessel, K. Khumthong, E. Kim, H. Kim, J. Kim, S. Kim, K. Kim, C. Kim, W. Kimura, M. King, J. King, J. Kinsey, A. Kirk, B. Kiyan, A. Kleiner, V. Klevarova, R. Knapp, M. Knolker, W. Ko, T. Kobayashi, E. Koch, M. Kochan, B. Koel, M. Koepke, A. Kohn, R. Kolasinski, E. Kolemen, E. Kostadinova, M. Kostuk, G. Kramer, D. Kriete, L. Kripner, S. Kubota, J. Kulchar, K. Kwon, R. La Haye, F. Laggner, H. Lan, R. Lantsov, L. Lao, A. Lasa Esquisabel, C. Lasnier, C. Lau, B. Leard, J. Lee, R. Lee, M. Lee, Y. Lee, C. Lee, S. Lee, M. Lehnen, A. Leonard, E. Leppink, M. Lesher, J. Lestz, J. Leuer, N. Leuthold, X. Li, K. Li, E. Li, G. Li, L. Li, Z. Li, J. Li, Y. Li, Z. Lin, D. Lin, X. Liu, J. Liu, Y. Liu, T. Liu, C. Liu, Z. Liu, D. Liu, A. Liu, A. Loarte-Prieto, L. Lodestro, N. Logan, J. Lohr, B. Lombardo, J. Lore, Q. Luan, T. Luce, T. Luda Di Cortemiglia, N. Luhmann, R. Lunsford, Z. Luo, A. Lvovskiy, B. Lyons, X. Ma, M. Madruga, B. Madsen, C. Maggi, K. Maheshwari, A. Mail, J. Mailloux, R. Maingi, M. Major, M. Makowski, R. Manchanda, C. Marini, A. Marinoni, A. Maris, T. Markovic, L. Marrelli, E. Martin, J. Mateja, G. Matsunaga, R. Maurizio, P. Mauzey, D. Mauzey, G. Mcardle, J. Mcclenaghan, K. Mccollam, C. Mcdevitt, K. Mckay, G. Mckee, A. Mclean, V. Mehta, E. Meier, J. Menard, O. Meneghini, G. Merlo, S. Messer, W. Meyer, C. Michael, C. Michoski, P. Milne, G. Minet, A. Misleh, Y. Mitrishkin, C. Moeller, K. Montes, M. Morales, S. Mordijck, D. Moreau, S. Morosohk, P. Morris, L. Morton, A. Moser, R. Moyer, C. Moynihan, T. Mrazkova, D. Mueller, S. Munaretto, J. Munoz Burgos, C. Murphy, K. Murphy, C. Muscatello, C. Myers, A. Nagy, G. Nandipati, M. Navarro, F. Nave, G. Navratil, R. Nazikian, A. Neff, G. Neilson, T. Neiser, W. Neiswanger, D. Nelson, A. Nelson, F. Nespoli, R. Nguyen, L. Nguyen, X. Nguyen, J. Nichols, M. Nocente, S. Nogami, S. Noraky, N. Norausky, M. Nornberg, R. Nygren, T. Odstrcil, D. Ogas, T. Ogorman, S. Ohdachi, Y. Ohtani, M. Okabayashi, M. Okamoto, L. Olavson, E. Olofsson, M. Omullane, R. Oneill, D. Orlov, W. Orvis, T. Osborne, D. Pace, G. Paganini Canal, A. Pajares Martinez, L. Palacios, C. Pan, Q. Pan, R. Pandit, M. Pandya, A. Pankin, Y. Park, J. Park, S. Parker, P. Parks, M. Parsons, B. Patel, C. Pawley, C. Paz-Soldan, W. Peebles, S. Pelton, R. Perillo, C. Petty, Y. Peysson, D. Pierce, A. Pigarov, L. Pigatto, D. Piglowski, S. Pinches, R. Pinsker, P. Piovesan, N. Piper, A. Pironti, R. Pitts, J. Pizzo, U. Plank, M. Podesta, E. Poli, F. Poli, D. Ponce, Z. Popovic, M. Porkolab, G. Porter, C. Powers, S. Powers, R. Prater, Q. Pratt, I. Pusztai, J. Qian, X. Qin, O. Ra, T. Rafiq, T. Raines, R. Raman, J. Rauch, A. Raymond, C. Rea, M. Reich, A. Reiman, S. Reinhold, M. Reinke, R. Reksoatmodjo, Q. Ren, Y. Ren, J. Ren, M. Rensink, J. Renteria, T. Rhodes, J. Rice, R. Roberts, J. Robinson, P. Rodriguez Fernandez, T. Rognlien, A. Rosenthal, S. Rosiello, J. Rost, J. Roveto, W. Rowan, R. Rozenblat, J. Ruane, D. Rudakov, J. Ruiz Ruiz, R. Rupani, S. Saarelma, S. Sabbagh, J. Sachdev, J. Saenz, S. Saib, M. Salewski, A. Salmi, B. Sammuli, C. Samuell, A. Sandorfi, C. Sang, J. Sarff, O. Sauter, K. Schaubel, L. Schmitz, O. Schmitz, J. Schneider, P. Schroeder, K. Schultz, E. Schuster, J. Schwartz, F. Sciortino, F. Scotti, J. 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Thornton, A. Ti, M. Tillack, N. Timchenko, R. Tinguely, R. Tompkins, J. Tooker, A. Torrezan De Sousa, G. Trevisan, S. Tripathi, A. Trujillo Ochoa, D. Truong, C. Tsui, F. Turco, A. Turnbull, M. Umansky, E. Unterberg, P. Vaezi, P. Vail, J. Valdez, W. Valkis, B. Van Compernolle, J. Van Galen, R. Van Kampen, M. Van Zeeland, G. Verdoolaege, N. Vianello, B. Victor, E. Viezzer, S. Vincena, M. Wade, F. Waelbroeck, J. Wai, T. Wakatsuki, M. Walker, G. Wallace, R. Waltz, W. Wampler, L. Wang, H. Wang, Y. Wang, Z. Wang, G. Wang, S. Ward, M. Watkins, J. Watkins, W. Wehner, Y. Wei, M. Weiland, D. Weisberg, A. Welander, A. White, R. White, S. Wiesen, R. Wilcox, T. Wilks, M. Willensdorfer, H. Wilson, A. Wingen, M. Wolde, M. Wolff, K. Woller, A. Wolz, H. Wong, S. Woodruff, M. Wu, Y. Wu, S. Wukitch, G. Wurden, W. Xiao, R. Xie, Z. Xing, X. Xu, C. Xu, G. Xu, Z. Yan, X. Yang, S. Yang, T. Yokoyama, R. Yoneda, M. Yoshida, K. You, T. Younkin, J. Yu, M. Yu, G. Yu, Q. Yuan, L. Zaidenberg, L. Zakharov, A. Zamengo, S. Zamperini, M. Zarnstorff, E. Zeger, K. Zeller, L. Zeng, M. Zerbini, L. Zhang, X. Zhang, R. Zhang, B. Zhang, J. Zhang, L. Zhao, B. Zhao, Y. Zheng, L. Zheng, B. Zhu, J. Zhu, Y. Zhu, M. Zsutty, M. Zuin, Fenstermacher, M. E., Abbate, J., Abe, S., Abrams, T., Adams, M., Adamson, B., Aiba, N., Akiyama, T., Aleynikov, P., Allen, E., Allen, S., Anand, H., Anderson, J., Andrew, Y., Andrews, T., Appelt, D., Arbon, R., Ashikawa, N., Ashourvan, A., Aslin, M., Asnis, Y., Austin, M., Ayala, D., Bak, J., Bandyopadhyay, I., Banerjee, S., Barada, K., Bardoczi, L., Barr, J., Bass, E., Battaglia, D., Battey, A., Baumgartner, W., Baylor, L., Beckers, J., Beidler, M., Belli, E., Berkery, J., Bernard, T., Bertelli, N., Beurskens, M., Bielajew, R., Bilgili, S., Biswas, B., Blondel, S., Boedo, J., Bogatu, I., Boivin, R., Bolzonella, T., Bongard, M., Bonnin, X., Bonoli, P., Bonotto, M., Bortolon, A., Bose, S., Bosviel, N., Bouwmans, S., Boyer, M., Boyes, W., Bradley, L., Brambila, R., Brennan, D., Bringuier, S., Brodsky, L., Brookman, M., Brooks, J., Brower, D., Brown, G., Brown, W., Burke, M., Burrell, K., Butler, K., Buttery, R., Bykov, I., Byrne, P., Cacheris, A., Callahan, K., Callen, J., Campbell, G., Candy, J., Canik, J., Cano-Megias, P., Cao, N., Carayannopoulos, L., Carlstrom, T., Carrig, W., Carter, T., Cary, W., Casali, L., Cengher, M., Cespedes Paz, G., Chaban, R., Chan, V., Chapman, B., Char, I., Chattopadhyay, A., Chen, R., Chen, J., Chen, X., Chen, M., Chen, Z., Choi, M., Choi, W., Choi, G., Chousal, L., Chrobak, C., Chrystal, C., Chung, Y., Churchill, R., Cianciosa, M., Clark, J., Clement, M., Coda, S., Cole, A., Collins, C., Conlin, W., Cooper, A., Cordell, J., Coriton, B., Cote, T., Cothran, J., Creely, A., Crocker, N., Crowe, C., Crowley, B., Crowley, T., Cruz-Zabala, D., Cummings, D., Curie, M., Curreli, D., Dal Molin, A., Dannels, B., Dautt-Silva, A., Davda, K., De Tommasi, G., De Vries, P., Degrandchamp, G., Degrassie, J., Demers, D., Denk, S., Depasquale, S., Deshazer, E., Diallo, A., Diem, S., Dimits, A., Ding, R., Ding, S., Ding, W., Do, T., Doane, J., Dong, G., Donovan, D., Drake, J., Drews, W., Drobny, J., Du, X., Du, H., Duarte, V., Dudt, D., Dunn, C., Duran, J., Dvorak, A., Effenberg, F., Eidietis, N., Elder, D., Eldon, D., Ellis, R., Elwasif, W., Ennis, D., Erickson, K., Ernst, D., Fasciana, M., Fedorov, D., Feibush, E., Ferraro, N., Ferreira, J., Ferron, J., Fimognari, P., Finkenthal, D., Fitzpatrick, R., Fox, P., Fox, W., Frassinetti, L., Frerichs, H., Frye, H., Fu, Y., Gage, K., Galdon Quiroga, J., Gallo, A., Gao, Q., Garcia, A., Garcia Munoz, M., Garnier, D., Garofalo, A., Gattuso, A., Geng, D., Gentle, K., Ghosh, D., Giacomelli, L., Gibson, S., Gilson, E., Giroud, C., Glass, F., Glasser, A., Glibert, D., Gohil, P., Gomez, R., Gomez, S., Gong, X., Gonzales, E., Goodman, A., Gorelov, Y., Graber, V., Granetz, R., Gray, T., Green, D., Greenfield, C., Greenwald, M., Grierson, B., Groebner, R., Grosnickle, W., Groth, M., Grunloh, H., Gu, S., Guo, W., Guo, H., Gupta, P., Guterl, J., Guttenfelder, W., Guzman, T., Haar, S., Hager, R., Hahn, S., Halfmoon, M., Hall, T., Hallatschek, K., Halpern, F., Hammett, G., Han, H., Hansen, E., Hansen, C., Hansink, M., 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J., Nocente, M., Nogami, S., Noraky, S., Norausky, N., Nornberg, M., Nygren, R., Odstrcil, T., Ogas, D., Ogorman, T., Ohdachi, S., Ohtani, Y., Okabayashi, M., Okamoto, M., Olavson, L., Olofsson, E., Omullane, M., Oneill, R., Orlov, D., Orvis, W., Osborne, T., Pace, D., Paganini Canal, G., Pajares Martinez, A., Palacios, L., Pan, C., Pan, Q., Pandit, R., Pandya, M., Pankin, A., Park, Y., Park, J., Parker, S., Parks, P., Parsons, M., Patel, B., Pawley, C., Paz-Soldan, C., Peebles, W., Pelton, S., Perillo, R., Petty, C., Peysson, Y., Pierce, D., Pigarov, A., Pigatto, L., Piglowski, D., Pinches, S., Pinsker, R., Piovesan, P., Piper, N., Pironti, A., Pitts, R., Pizzo, J., Plank, U., Podesta, M., Poli, E., Poli, F., Ponce, D., Popovic, Z., Porkolab, M., Porter, G., Powers, C., Powers, S., Prater, R., Pratt, Q., Pusztai, I., Qian, J., Qin, X., Ra, O., Rafiq, T., Raines, T., Raman, R., Rauch, J., Raymond, A., Rea, C., Reich, M., Reiman, A., Reinhold, S., Reinke, M., Reksoatmodjo, R., Ren, Q., Ren, Y., Ren, J., Rensink, M., Renteria, J., Rhodes, T., Rice, J., Roberts, R., Robinson, J., Rodriguez Fernandez, P., Rognlien, T., Rosenthal, A., Rosiello, S., Rost, J., Roveto, J., Rowan, W., Rozenblat, R., Ruane, J., Rudakov, D., Ruiz Ruiz, J., Rupani, R., Saarelma, S., Sabbagh, S., Sachdev, J., Saenz, J., Saib, S., Salewski, M., Salmi, A., Sammuli, B., Samuell, C., Sandorfi, A., Sang, C., Sarff, J., Sauter, O., Schaubel, K., Schmitz, L., Schmitz, O., Schneider, J., Schroeder, P., Schultz, K., Schuster, E., Schwartz, J., Sciortino, F., Scotti, F., Scoville, J., Seltzman, A., Seol, S., Sfiligoi, I., Shafer, M., Sharapov, S., Shen, H., Sheng, Z., Shepard, T., Shi, S., Shibata, Y., Shin, G., Shiraki, D., Shousha, R., Si, H., Simmerling, P., Sinclair, G., Sinha, J., Sinha, P., Sips, G., Sizyuk, T., Skinner, C., Sladkomedova, A., Slendebroek, T., Slief, J., Smirnov, R., Smith, J., Smith, S., Smith, D., Snipes, J., Snoep, G., Snyder, A., Snyder, P., Solano, E., Solomon, W., Song, J., Sontag, A., Soukhanovskii, V., Spendlove, J., Spong, D., Squire, J., Srinivasan, C., Stacey, W., Staebler, G., Stagner, L., Stange, T., Stangeby, P., Stefan, R., Stemprok, R., Stephan, D., Stillerman, J., Stoltzfus-Dueck, T., Stonecipher, W., Storment, S., Strait, E., Su, D., Sugiyama, L., Sun, Y., Sun, P., Sun, Z., Sun, A., Sundstrom, D., Sung, C., Sungcoco, J., Suttrop, W., Suzuki, Y., Suzuki, T., Svyatkovskiy, A., Swee, C., Sweeney, R., Sweetnam, C., Szepesi, G., Takechi, M., Tala, T., Tanaka, K., Tang, X., Tang, S., Tao, Y., Tao, R., Taussig, D., Taylor, T., Teixeira, K., Teo, K., Theodorsen, A., Thomas, D., Thome, K., Thorman, A., Thornton, A., Ti, A., Tillack, M., Timchenko, N., Tinguely, R., Tompkins, R., Tooker, J., Torrezan De Sousa, A., Trevisan, G., Tripathi, S., Trujillo Ochoa, A., Truong, D., Tsui, C., Turco, F., Turnbull, A., Umansky, M., Unterberg, E., Vaezi, P., Vail, P., Valdez, J., Valkis, W., Van Compernolle, B., Van Galen, J., Van Kampen, R., Van Zeeland, M., Verdoolaege, G., Vianello, N., Victor, B., Viezzer, E., Vincena, S., Wade, M., Waelbroeck, F., Wai, J., Wakatsuki, T., Walker, M., Wallace, G., Waltz, R., Wampler, W., Wang, L., Wang, H., Wang, Y., Wang, Z., Wang, G., Ward, S., Watkins, M., Watkins, J., Wehner, W., Wei, Y., Weiland, M., Weisberg, D., Welander, A., White, A., White, R., Wiesen, S., Wilcox, R., Wilks, T., Willensdorfer, M., Wilson, H., Wingen, A., Wolde, M., Wolff, M., Woller, K., Wolz, A., Wong, H., Woodruff, S., Wu, M., Wu, Y., Wukitch, S., Wurden, G., Xiao, W., Xie, R., Xing, Z., Xu, X., Xu, C., Xu, G., Yan, Z., Yang, X., Yang, S., Yokoyama, T., Yoneda, R., Yoshida, M., You, K., Younkin, T., Yu, J., Yu, M., Yu, G., Yuan, Q., Zaidenberg, L., Zakharov, L., Zamengo, A., Zamperini, S., Zarnstorff, M., Zeger, E., Zeller, K., Zeng, L., Zerbini, M., Zhang, L., Zhang, X., Zhang, R., Zhang, B., Zhang, J., Zhao, L., Zhao, B., Zheng, Y., Zheng, L., Zhu, B., Zhu, J., Zhu, Y., Zsutty, M., Zuin, M., Fenstermacher, M, Abbate, J, 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P, Finkenthal, D, Fitzpatrick, R, Fox, P, Fox, W, Frassinetti, L, Frerichs, H, Frye, H, Fu, Y, Gage, K, Quiroga, J, Gallo, A, Gao, Q, Garcia, A, Munoz, M, Garnier, D, Garofalo, A, Gattuso, A, Geng, D, Gentle, K, Ghosh, D, Giacomelli, L, Gibson, S, Gilson, E, Giroud, C, Glass, F, Glasser, A, Glibert, D, Gohil, P, Gomez, R, Gomez, S, Gong, X, Gonzales, E, Goodman, A, Gorelov, Y, Graber, V, Granetz, R, Gray, T, Green, D, Greenfield, C, Greenwald, M, Grierson, B, Groebner, R, Grosnickle, W, Groth, M, Grunloh, H, Gu, S, Guo, W, Guo, H, Gupta, P, Guterl, J, Guttenfelder, W, Guzman, T, Haar, S, Hager, R, Hahn, S, Halfmoon, M, Hall, T, Hallatschek, K, Halpern, F, Hammett, G, Han, H, Hansen, E, Hansen, C, Hansink, M, Hanson, J, Hanson, M, Hao, G, Harris, A, Harvey, R, Haskey, S, Hassan, E, Hassanein, A, Hatch, D, Hawryluk, R, Hayashi, W, Heidbrink, W, Herfindal, J, Hicok, J, Hill, D, Hinson, E, Holcomb, C, Holland, L, Holland, C, Hollmann, E, Hollocombe, J, Holm, A, Holmes, I, Holtrop, K, Honda, M, Hong, R, Hood, R, Horton, A, Horvath, L, Hosokawa, M, Houshmandyar, S, Howard, N, Howell, E, Hoyt, D, Hu, W, Hu, Y, Hu, Q, Huang, J, Huang, Y, Hughes, J, Human, T, Humphreys, D, Huynh, P, Hyatt, A, Ibanez, C, Ibarra, L, Icasas, R, Ida, K, Igochine, V, In, Y, Inoue, S, Isayama, A, Izacard, O, Izzo, V, Jackson, A, Jacobsen, G, Jaervinen, A, Jalalvand, A, Janhunen, J, Jardin, S, Jarleblad, H, Jeon, Y, Ji, H, Jian, X, Joffrin, E, Johansen, A, Johnson, C, Johnson, T, Jones, C, Joseph, I, Jubas, D, Junge, B, Kalb, W, Kalling, R, Kamath, C, Kang, J, Kaplan, D, Kaptanoglu, A, Kasdorf, S, Kates-Harbeck, J, Kazantzidis, P, Kellman, A, Kellman, D, Kessel, C, Khumthong, K, Kim, E, Kim, H, Kim, J, Kim, S, Kim, K, Kim, C, Kimura, W, King, M, King, J, Kinsey, J, Kirk, A, Kiyan, B, Kleiner, A, Klevarova, V, Knapp, R, Knolker, M, Ko, W, Kobayashi, T, Koch, E, Kochan, M, Koel, B, Koepke, M, Kohn, A, Kolasinski, R, Kolemen, E, Kostadinova, E, Kostuk, M, Kramer, G, Kriete, D, Kripner, L, Kubota, S, Kulchar, J, Kwon, K, La Haye, R, Laggner, F, Lan, H, Lantsov, R, Lao, L, Esquisabel, A, Lasnier, C, Lau, C, Leard, B, Lee, J, Lee, R, Lee, M, Lee, Y, Lee, C, Lee, S, Lehnen, M, Leonard, A, Leppink, E, Lesher, M, Lestz, J, Leuer, J, Leuthold, N, Li, X, Li, K, Li, E, Li, G, Li, L, Li, Z, Li, J, Li, Y, Lin, Z, Lin, D, Liu, X, Liu, J, Liu, Y, Liu, T, Liu, C, Liu, Z, Liu, D, Liu, A, Loarte-Prieto, A, Lodestro, L, Logan, N, Lohr, J, Lombardo, B, Lore, J, Luan, Q, Luce, T, Di Cortemiglia, T, Luhmann, N, Lunsford, R, Luo, Z, Lvovskiy, A, Lyons, B, Ma, X, Madruga, M, Madsen, B, Maggi, C, Maheshwari, K, Mail, A, Mailloux, J, Maingi, R, Major, M, Makowski, M, Manchanda, R, Marini, C, Marinoni, A, Maris, A, Markovic, T, Marrelli, L, Martin, E, Mateja, J, Matsunaga, G, Maurizio, R, Mauzey, P, Mauzey, D, Mcardle, G, Mcclenaghan, J, Mccollam, K, Mcdevitt, C, Mckay, K, Mckee, G, Mclean, A, Mehta, V, Meier, E, Menard, J, Meneghini, O, Merlo, G, Messer, S, Meyer, W, Michael, C, Michoski, C, Milne, P, Minet, G, Misleh, A, Mitrishkin, Y, Moeller, C, Montes, K, Morales, M, Mordijck, S, Moreau, D, Morosohk, S, Morris, P, Morton, L, Moser, A, Moyer, R, Moynihan, C, Mrazkova, T, Mueller, D, Munaretto, S, Burgos, J, Murphy, C, Murphy, K, Muscatello, C, Myers, C, Nagy, A, Nandipati, G, Navarro, M, Nave, F, Navratil, G, Nazikian, R, Neff, A, Neilson, G, Neiser, T, Neiswanger, W, Nelson, D, Nelson, A, Nespoli, F, Nguyen, R, Nguyen, L, Nguyen, X, Nichols, J, Nocente, M, Nogami, S, Noraky, S, Norausky, N, Nornberg, M, Nygren, R, Odstrcil, T, Ogas, D, Ogorman, T, Ohdachi, S, Ohtani, Y, Okabayashi, M, Okamoto, M, Olavson, L, Olofsson, E, Omullane, M, Oneill, R, Orlov, D, Orvis, W, Osborne, T, Pace, D, Canal, G, Martinez, A, Palacios, L, Pan, C, Pan, Q, Pandit, R, Pandya, M, Pankin, A, Park, Y, Park, J, Parker, S, Parks, P, Parsons, M, Patel, B, Pawley, C, Paz-Soldan, C, Peebles, W, Pelton, S, Perillo, R, Petty, C, Peysson, Y, Pierce, D, Pigarov, A, Pigatto, L, Piglowski, D, Pinches, S, Pinsker, R, Piovesan, P, Piper, N, Pironti, A, Pitts, R, Pizzo, J, Plank, U, Podesta, M, Poli, E, Poli, F, Ponce, D, Popovic, Z, Porkolab, M, Porter, G, Powers, C, Powers, S, Prater, R, Pratt, Q, Pusztai, I, Qian, J, Qin, X, Ra, O, Rafiq, T, Raines, T, Raman, R, Rauch, J, Raymond, A, Rea, C, Reich, M, Reiman, A, Reinhold, S, Reinke, M, Reksoatmodjo, R, Ren, Q, Ren, Y, Ren, J, Rensink, M, Renteria, J, Rhodes, T, Rice, J, Roberts, R, Robinson, J, Fernandez, P, Rognlien, T, Rosenthal, A, Rosiello, S, Rost, J, Roveto, J, Rowan, W, Rozenblat, R, Ruane, J, Rudakov, D, Ruiz, J, Rupani, R, Saarelma, S, Sabbagh, S, Sachdev, J, Saenz, J, Saib, S, Salewski, M, Salmi, A, Sammuli, B, Samuell, C, Sandorfi, A, Sang, C, Sarff, J, Sauter, O, Schaubel, K, Schmitz, L, Schmitz, O, Schneider, J, Schroeder, P, Schultz, K, Schuster, E, Schwartz, J, Sciortino, F, Scotti, F, Scoville, J, Seltzman, A, Seol, S, Sfiligoi, I, Shafer, M, Sharapov, S, Shen, H, Sheng, Z, Shepard, T, Shi, S, Shibata, Y, Shin, G, Shiraki, D, Shousha, R, Si, H, Simmerling, P, Sinclair, G, Sinha, J, Sinha, P, Sips, G, Sizyuk, T, Skinner, C, Sladkomedova, A, Slendebroek, T, Slief, J, Smirnov, R, Smith, J, Smith, S, Smith, D, Snipes, J, Snoep, G, Snyder, A, Snyder, P, Solano, E, Solomon, W, Song, J, Sontag, A, Soukhanovskii, V, Spendlove, J, Spong, D, Squire, J, Srinivasan, C, Stacey, W, Staebler, G, Stagner, L, Stange, T, Stangeby, P, Stefan, R, Stemprok, R, Stephan, D, Stillerman, J, Stoltzfus-Dueck, T, Stonecipher, W, Storment, S, Strait, E, Su, D, Sugiyama, L, Sun, Y, Sun, P, Sun, Z, Sun, A, Sundstrom, D, Sung, C, Sungcoco, J, Suttrop, W, Suzuki, Y, Suzuki, T, Svyatkovskiy, A, Swee, C, Sweeney, R, Sweetnam, C, Szepesi, G, Takechi, M, Tala, T, Tanaka, K, Tang, X, Tang, S, Tao, Y, Tao, R, Taussig, D, Taylor, T, Teixeira, K, Teo, K, Theodorsen, A, Thomas, D, Thome, K, Thorman, A, Thornton, A, Ti, A, Tillack, M, Timchenko, N, Tinguely, R, Tompkins, R, Tooker, J, De Sousa, A, Trevisan, G, Tripathi, S, Ochoa, A, Truong, D, Tsui, C, Turco, F, Turnbull, A, Umansky, M, Unterberg, E, Vaezi, P, Vail, P, Valdez, J, Valkis, W, Van Compernolle, B, Van Galen, J, Van Kampen, R, Van Zeeland, M, Verdoolaege, G, Vianello, N, Victor, B, Viezzer, E, Vincena, S, Wade, M, Waelbroeck, F, Wai, J, Wakatsuki, T, Walker, M, Wallace, G, Waltz, R, Wampler, W, Wang, L, Wang, H, Wang, Y, Wang, Z, Wang, G, Ward, S, Watkins, M, Watkins, J, Wehner, W, Wei, Y, Weiland, M, Weisberg, D, Welander, A, White, A, White, R, Wiesen, S, Wilcox, R, Wilks, T, Willensdorfer, M, Wilson, H, Wingen, A, Wolde, M, Wolff, M, Woller, K, Wolz, A, Wong, H, Woodruff, S, Wu, M, Wu, Y, Wukitch, S, Wurden, G, Xiao, W, Xie, R, Xing, Z, Xu, X, Xu, C, Xu, G, Yan, Z, Yang, X, Yang, S, Yokoyama, T, Yoneda, R, Yoshida, M, You, K, Younkin, T, Yu, J, Yu, M, Yu, G, Yuan, Q, Zaidenberg, L, Zakharov, L, Zamengo, A, Zamperini, S, Zarnstorff, M, Zeger, E, Zeller, K, Zeng, L, Zerbini, M, Zhang, L, Zhang, X, Zhang, R, Zhang, B, Zhang, J, Zhao, L, Zhao, B, Zheng, Y, Zheng, L, Zhu, B, Zhu, J, Zhu, Y, Zsutty, M, Zuin, M, Lawrence Livermore National Laboratory, Princeton Plasma Physics Laboratory, Princeton University, General Atomics, Max-Planck-Institut für Plasmaphysik, Imperial College London, National Institute for Fusion Science, Universidade de São Paulo, University of Texas at Austin, ITER, College of William and Mary, University of California Los Angeles, University of California San Diego, Columbia University, Massachusetts Institute of Technology, Oak Ridge National Laboratory, Eindhoven University of Technology, Oak Ridge Associated Universities, West Virginia University, University of Tennessee, Knoxville, National Research Council of Italy, Stony Brook University, Purdue University, University of Seville, University of Science and Technology of China, Carnegie Mellon University, Institute for Plasma Research, Peking University, University of California Davis, University of California Irvine, Commonwealth Fusion Systems, University of Liverpool, University of Illinois at Urbana-Champaign, University of Milan - Bicocca, Georgia Institute of Technology, Southwestern Institute of Physics, University of Toronto, Auburn University, Polytechnic University of Turin, Universidade Lisboa, Association CCFE, KTH Royal Institute of Technology, San Diego State University, Durham University, Lehigh University, Fusion and Plasma Physics, University of Washington, Department of Applied Physics, Sandia National Laboratories, Ghent University, Technical University of Denmark, CEA, University of Colorado Boulder, Harvard University, National Technical University of Athens, Coventry University, University of Stuttgart, Czech Academy of Sciences, Harvey Mudd College, Seoul National University, Donghua University, University of York, Dalian University of Technology, University of California Berkeley, Los Alamos National Laboratory, United States Department of Energy, University of British Columbia, Pacific Northwest National Laboratory, University of Wisconsin, Michigan State University, University of Strathclyde, Pennsylvania State University, Rensselaer Polytechnic Institute, University of Southern California, Chalmers University of Technology, University of Virginia, University of Naples Federico II, University of Oxford, VTT Technical Research Centre of Finland, National Institute of Technology, University of Connecticut, DIFFER, CIEMAT, Hanyang University, Brigham Young University, UiT The Arctic University of Norway, Australian National University, Russian Research Centre Kurchatov Institute, Forschungszentrum Jülich, Zhejiang University, The University of Tokyo, University of Michigan, Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, Aalto-yliopisto, Aalto University, DIII-D Team, Complex Ionized Media, Elementary Processes in Gas Discharges, Applied Physics and Science Education, Science and Technology of Nuclear Fusion, and Control Systems Technology

Subjects
Nuclear and High Energy Physics, Tokamak, Technology and Engineering, DIII-D, Nuclear engineering, TOKAMAKS, MITIGATION, law.invention, Plasma physics, mitigation, law, plasma physic, tokamak, Physics, Core-edge integration, Basis (linear algebra), plasma physics, core-edge integration, scenarios, Fusion power, Condensed Matter Physics, SCENARIOS, fusion energy, Fusion energy
Abstract

Funding Information: This material is based upon work supported by the US Department of Energy, Office of Science, Office of Fusion Energy Sciences, using the DIII-D National Fusion Facility, a DOE Office of Science user facility, under Awards DE-FC02-04ER54698 and DE-AC52-07NA27344. Publisher Copyright: © 2022 IAEA, Vienna. DIII-D physics research addresses critical challenges for the operation of ITER and the next generation of fusion energy devices. This is done through a focus on innovations to provide solutions for high performance long pulse operation, coupled with fundamental plasma physics understanding and model validation, to drive scenario development by integrating high performance core and boundary plasmas. Substantial increases in off-axis current drive efficiency from an innovative top launch system for EC power, and in pressure broadening for Alfven eigenmode control from a co-/counter-I p steerable off-axis neutral beam, all improve the prospects for optimization of future long pulse/steady state high performance tokamak operation. Fundamental studies into the modes that drive the evolution of the pedestal pressure profile and electron vs ion heat flux validate predictive models of pedestal recovery after ELMs. Understanding the physics mechanisms of ELM control and density pumpout by 3D magnetic perturbation fields leads to confident predictions for ITER and future devices. Validated modeling of high-Z shattered pellet injection for disruption mitigation, runaway electron dissipation, and techniques for disruption prediction and avoidance including machine learning, give confidence in handling disruptivity for future devices. For the non-nuclear phase of ITER, two actuators are identified to lower the L-H threshold power in hydrogen plasmas. With this physics understanding and suite of capabilities, a high poloidal beta optimized-core scenario with an internal transport barrier that projects nearly to Q = 10 in ITER at ∼8 MA was coupled to a detached divertor, and a near super H-mode optimized-pedestal scenario with co-I p beam injection was coupled to a radiative divertor. The hybrid core scenario was achieved directly, without the need for anomalous current diffusion, using off-axis current drive actuators. Also, a controller to assess proximity to stability limits and regulate β N in the ITER baseline scenario, based on plasma response to probing 3D fields, was demonstrated. Finally, innovative tokamak operation using a negative triangularity shape showed many attractive features for future pilot plant operation.

Published
2022
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15. Spirituality and Religion: Implications for Counselors

Author

Hall, Charla R., Dixon, Wayne A., and Mauzey, Edward D.

Abstract

In recent years, the topics of spirituality and religion have become more evident in the counseling literature. It seems logical that these areas could be of great interest to those in the counseling profession. This article summarizes W. R. Miller and C. E. Thoresen's (2003) overview of the field of research dealing with spirituality religion, and health. Possible roles for spirituality and religion in counselor education and school counseling are highlighted.

Published
2004

16. Physical Activity and Exercise: Implications for Counselors.

Author

Dixon, Wayne A., Mauzey, Edward D., and Hall, Charla R.

Abstract

Authors address current recommendations for physical activity and health, physical activity and mental well being, and implications for counselors and the counseling profession. Specifically, they review a recent article published in the "Journal of Consulting and Clinical Psychology" and examine in detail the resulting implications for counselors and the counseling profession. (Contains 18 references.) (Author)

Published
2003

17. A Higher Order Analysis of the Factor Structure of the Myers-Briggs Type Indicator.

Author

Johnson, William L., Mauzey, Edward, Johnson, Annabel M., Murphy, Stanley D., and Zimmerman, Kurt J.

Abstract

Examines the higher order structure of Form G of the Myers Briggs Type Indicator. A third order component analysis of a sample (N=926) found two higher order components. This higher order analysis contributes to the research literature pertaining to the generalized structure of the personality measure. (Contains 44 references and 1 table.) (GCP)

Published
2001

18. Tests of a full-scale ITER toroidal interferometer and polarimeter (TIP) prototype on the DIII-D tokamak (invited)

Author

Ray O’Neill, P Mauzey, Jie Chen, D. K. Finkenthal, D. Du, Tsuyoshi Akiyama, Christopher Muscatello, Michael T. Watkins, D. L. Brower, Rick Wood, David Johnson, F. Glass, T. N. Carlstrom, Weixing Ding, M. Smiley, A. Gattuso, M. A. Van Zeeland, R. L. Boivin, A. Colio, C. Watts, J. Vasquez, and M. Perry

Subjects
Physics, Tokamak, DIII-D, business.industry, Thomson scattering, Polarimetry, Polarimeter, 01 natural sciences, 010305 fluids & plasmas, law.invention, Interferometry, symbols.namesake, Optics, law, 0103 physical sciences, Faraday effect, symbols, Plasma diagnostics, 010306 general physics, business, Instrumentation
Abstract

A full-scale ITER toroidal interferometer and polarimeter (TIP) prototype, including an active feedback alignment system, has been installed and tested on the DIII-D tokamak. In the TIP prototype, a two-color interferometry measurement of line-integrated density is carried out at 10.59 μm and 5.22 μm using a CO2 and quantum cascade laser, respectively, while a separate polarimetry measurement of the plasma-induced Faraday effect is made at 10.59 μm. The TIP prototype is equipped with a piezo tip/tilt stage active feedback alignment system that minimizes noise in the measurement and keeps the diagnostic aligned throughout DIII-D discharges. The measured phase resolution for the polarimeter and interferometer is 0.05° (100 Hz bandwidth) and 1.9° (1 kHz bandwidth), respectively. The corresponding line-integrated density resolution for the vibration-compensated interferometer is δnL = 1.5 × 1018 m-2, and the magnetic field-weighted line-integrated density from the polarimeter is δnBL = 1.5 × 1019 Tm-2. Both interferometer and polarimeter measurements during DIII-D discharges compare well with the expectations based on calculations using Thomson scattering measured density profiles and magnetic equilibrium reconstructions. Additionally, larger bandwidth interferometer measurements show that the diagnostic is a sensitive monitor of core density fluctuations with demonstrated measurements of Alfven eigenmodes and tearing modes.

Published
2018
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19. Tests of a two-color interferometer and polarimeter for ITER density measurements

Author

Weixing Ding, D. Du, A. Gattuso, P Mauzey, Ray O’Neill, M Perry, A. Colio, M. Smiley, D. L. Brower, M. A. Van Zeeland, R. L. Boivin, Rick Wood, D. K. Finkenthal, Michael T. Watkins, Christopher Muscatello, C. Watts, T. N. Carlstrom, Jie Chen, J. Vasquez, David Johnson, and F. Glass

Subjects
010302 applied physics, Physics, business.industry, Polarimetry, Polarimeter, Condensed Matter Physics, 01 natural sciences, Phase detector, 010305 fluids & plasmas, Interferometry, symbols.namesake, Optics, Nuclear Energy and Engineering, Path length, 0103 physical sciences, Faraday effect, symbols, Radio frequency, business, Beam (structure)
Abstract

A full-scale 120 m path length ITER toroidal interferometer and polarimeter (TIP) prototype, including an active feedback alignment system, has been constructed and undergone initial testing at General Atomics. In the TIP prototype, two-color interferometry is carried out at 10.59 μm and 5.22 μm using a CO2 and quantum cascade laser (QCL) respectively while a separate polarimetry measurement of the plasma induced Faraday effect is made at 10.59 μm. The polarimeter system uses co-linear right and left-hand circularly polarized beams upshifted by 40 and 44 MHz acousto-optic cells respectively, to generate the necessary beat signal for heterodyne phase detection, while interferometry measurements are carried out at both 40 MHz and 44 MHz for the CO2 laser and 40 MHz for the QCL. The high-resolution phase information is obtained using an all-digital FPGA based phase demodulation scheme and precision clock source. The TIP prototype is equipped with a piezo tip/tilt stage active feedback alignment system responsible for minimizing noise in the measurement and keeping the TIP diagnostic aligned indefinitely on its 120 m beam path including as the ITER vessel is brought from ambient to operating temperatures. The prototype beam path incorporates translation stages to simulate ITER motion through a bake cycle as well as other sources of motion or misalignment. Even in the presence of significant motion, the TIP prototype is able to meet ITER's density measurement requirements over 1000 s shot durations with demonstrated phase resolution of 0.06° and 1.5° for the polarimeter and vibration compensated interferometer respectively. TIP vibration compensated interferometer measurements of a plasma have also been made in a pulsed radio frequency device and show a line-integrated density resolution of m−2.

Published
2017
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22. Feeding Behavior of Asteroids and Escape Responses of their Prey in the Puget Sound Region

Author

Karl P. Mauzey, Paul K. Dayton, and Charles Birkeland

Subjects
biology, Ecology, Sea pen, Leptasterias hexactis, Solaster stimpsoni, Pisaster brevispinus, Solaster dawsoni, biology.organism_classification, Pteraster tesselatus, Mediaster aequalis, Ecology, Evolution, Behavior and Systematics, Predation
Abstract

Observations were made with scuba on the diet and behavior of 18 species of undisturbed sea stars in their natural habitats along the shores of Washington state through all seasons. Some sea stars are specialists. Hippasteria spinosa feeds almost exclusively on a sea pen; Solaster stimpsoni eats holothurians; full—sized Orthasterias koehleri consume the venerid clam Humilaria; Solaster dawsoni eats its congener S. stimpsoni. Others show remarkably variable diets. In different habitats, Dermasterias imbricata specializes on either anemones, holothurians or sea pens, but within these habitats its diet is consistent throughout the year. The diet of Mediaster aequalis varies with both habitat and season. Pycnopodia helianthoides feeds on sea urchins on rocky substrata but digs clams from sand and cobble. Many other sea stars, including Luidia foliolata, Pteraster tesselatus, Pisater ochraceus, Evasterias troschelii and Leptasterias hexactis, are quite generalized in their diet and, though often demonstrating preferences in laboratory studies, will feed on a variety of prey determined largely by relative abundance of prey species in the particular habitat. The areal and seasonal variation in the diet of sea stars coupled with the reluctance of some to eat any prey in the laboratory makes extension of laboratory observations to the field diet suspect. Laboratory observations can be used to provide a more detailed understanding of field observations. Several previously undescribed behavioral mechanisms of food capture in asterioids and escape or defense responses or prey are described: Orthasterias pulls chips of shell off Humilaria until an opening is made, thus allowing exploitation of a prey species unavailable to other clam—eating asteroids. A number of sea stars, such as Luidia, Hippasteria, Mediaster, Pisaster brevispinus, Orthasterias and Pycnopodia dig into mud, sand or cobble substrata to obtain infaunal prey. The locomotory patterns of S. dawsoni and Crossaster papposus tend to allow encounter with their prey in such a way as to reduce the effectiveness of the escape response. A pushing response by Solaster stimpsoni and autotomy in Pycnopodia and Evasterias are thought to be effective responses to S. dawsoni predation. The similar swimming responses to two anemones, a nudibranch, and a holothurian are discussed in relation to asteroid predation. The avoidance responses that many invertebrates show to asteroids are correlated with predator—prey relationships. Two mechanisms may obscure this correlation. The very success of the response may effectively remove the responding organism from the predator's diet. Thus scallops, although abundant, form a very inconspicuous portion of starfish diet. Also biochemical similarities between the predator and other organisms may make a prey species unable to distinguish only its predator. Thus Pycnopodia will move rapidly away from Crossaster and Solaster stimpsoni as well as from S. dawsoni, although the latter is its only asteroid predator. The similarities may be based either on a close taxonomic relationship with the predator, or on the diet of the other organism including species closely related to the responding prey species.

Published
1968
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23. Trainee Perceptions of Live Supervision Phone-Ins

Author

Mauzey, Ed and Erdman, Phyllis

Abstract

This paper describes a phenomenological inquiry into trainees' perceptions of phone-ins during live supervision. Using a phenomenological qualitative research design, the authors interviewed doctoral level trainees to gather an understanding of their perceptions regarding the use of phone-ins as a supervisory tool in marriage and family therapy training. Four major themes emerged from the interviews-how phone-ins are used, the effect of phone-ins on clients, the effect of phone-ins on trainees, and the effect of the supervisor-trainee relationships on the use of phone-ins. From these themes emerged profiles of the positive and the negative qualities of supervisors. Recommendations are also provided for the anatomy of a good phone-in.

Published
1997
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24. Pregnandiol excretion at the time of labor

Author

Mauzey, Armand Jean

Abstract

Six pregnant women, four multiparas and two primiparas, had periodic studies of urine for pregnandiol, totaling 46 assays, covering periods involving the last weeks of pregnancy, immediately prior to labor, during labor, and following delivery. It was found that although the quantity of pregnandiol excretion dropped during the last weeks of pregnancy, the pregnandiol curve prior to the onset of labor rose sharply and continued at an appreciable level throughout labor, at the conclusion of which pregnandiol output fell to a negligible amount within 72 hours. A discussion of the possible significance of these findings was advanced and several suggestions were offered regarding

Published
1950
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25. FEEDING BEHAVIOR AND REPRODUCTIVE CYCLES IN PISASTER OCHRACEUS

Author

MAUZEY, KARL PERRY

Abstract

1. Pisaster ochraceusshows a definite seasonal feeding periodicity, in terms of per cent of the population feeding at one time, dry weight ingested, and in composition of ingested prey. Less than 5% are feeding in January and February; 60% to 80% in July and August. The dry weight ingested varies from about 3 grams per tidal cycle per 100 animals in the winter to about 30 grams in the summer months. Chitons are the principal winter prey, while barnacles and limpets are fed on most often in the summer.2. Cyclic changes in gonad and pyloric caeca size and histological appearance characterize this species. The gonads are smallest in the fall, and grow during the winter to a maximum in the late spring, when spawning occurs. The pyloric caeca size-changes are approximately inverse to those of the gonads. Seasonal histological changes of the oocytes, and storage granules in the pyloric caeca, are correlated with the gross organ patterns.3. Two factors are suggested as explanations for these cyclic phenomena. (a) More favorable summer feeding for both the adult and larval Pisastermay have led to evolution of a storage function for the pyloric caeca; nutrients could then he transferred to the gonads in the winter. (b) It would seem evolutionarily advantageous to fill more of the limited space available in the arms with gonads than with pyloric caeca in the spring, at the time of spawning.

Published
1966
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26. Feeding Behavior of Asteroids and Escape Responses of their Prey in the Puget Sound Region

Author

Mauzey, Karl P., Birkeland, Charles, and Dayton, Paul K.

Abstract

Observations were made with scuba on the diet and behavior of 18 species of undisturbed sea stars in their natural habitats along the shores of Washington state through all seasons. Some sea stars are specialists. Hippasteria spinosa feeds almost exclusively on a sea pen; Solaster stimpsoni eats holothurians; full—sized Orthasterias koehleri consume the venerid clam Humilaria; Solaster dawsoni eats its congener S. stimpsoni. Others show remarkably variable diets. In different habitats, Dermasterias imbricata specializes on either anemones, holothurians or sea pens, but within these habitats its diet is consistent throughout the year. The diet of Mediaster aequalis varies with both habitat and season. Pycnopodia helianthoides feeds on sea urchins on rocky substrata but digs clams from sand and cobble. Many other sea stars, including Luidia foliolata, Pteraster tesselatus, Pisater ochraceus, Evasterias troschelii and Leptasterias hexactis, are quite generalized in their diet and, though often demonstrating preferences in laboratory studies, will feed on a variety of prey determined largely by relative abundance of prey species in the particular habitat. The areal and seasonal variation in the diet of sea stars coupled with the reluctance of some to eat any prey in the laboratory makes extension of laboratory observations to the field diet suspect. Laboratory observations can be used to provide a more detailed understanding of field observations. Several previously undescribed behavioral mechanisms of food capture in asterioids and escape or defense responses or prey are described: Orthasterias pulls chips of shell off Humilaria until an opening is made, thus allowing exploitation of a prey species unavailable to other clam—eating asteroids. A number of sea stars, such as Luidia, Hippasteria, Mediaster, Pisaster brevispinus, Orthasterias and Pycnopodia dig into mud, sand or cobble substrata to obtain infaunal prey. The locomotory patterns of S. dawsoni and Crossaster papposus tend to allow encounter with their prey in such a way as to reduce the effectiveness of the escape response. A pushing response by Solaster stimpsoni and autotomy in Pycnopodia and Evasterias are thought to be effective responses to S. dawsoni predation. The similar swimming responses to two anemones, a nudibranch, and a holothurian are discussed in relation to asteroid predation. The avoidance responses that many invertebrates show to asteroids are correlated with predator—prey relationships. Two mechanisms may obscure this correlation. The very success of the response may effectively remove the responding organism from the predator's diet. Thus scallops, although abundant, form a very inconspicuous portion of starfish diet. Also biochemical similarities between the predator and other organisms may make a prey species unable to distinguish only its predator. Thus Pycnopodia will move rapidly away from Crossaster and Solaster stimpsoni as well as from S. dawsoni, although the latter is its only asteroid predator. The similarities may be based either on a close taxonomic relationship with the predator, or on the diet of the other organism including species closely related to the responding prey species.

Published
1968
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27. Obstetric factors in premature birth

Author

Mauzey, Armand Jean

Abstract

1.1. Of 10,797 labors with subsequent births at the Research and Educational Hospitals of the University of Illinois, 765 labors were premature. There were 52 multiple pregnancies which produced a total of 819 premature infants.2.2. The probable causes of prematurity were chiefly eclamptogenic toxemia, premature detachment of the placenta, syphilis, multiple pregnancy, habitual abortion, placenta previa, nephritic toxemia, heart disease, and pyelitis.3.3. There were 216 premature deaths. Probable causes of prematurity were present with premature death in 143 instances.4.4. The gross infant mortality was 26.3 per cent. Infants under 1,500 gm. had an 87.0 per cent mortality, while those 1,500 gm. and over had a mortality of 14.1 per cent.5.5. A thorough understanding of obstetric complications is of prime importance to manage adequately premature labor. An aqueous solution of corpus luteum extract to control premature uterine contractions is an important adjunct in the management of prematurity.6.6. Skilled autopsy examination by one familiar with premature infant pathology is necessary to determine the cause of death.

Published
1940
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28. Tests of a two-color interferometer and polarimeter for ITER density measurements.

Author

M A Van Zeeland, T N Carlstrom, D K Finkenthal, R L Boivin, A Colio, D Du, A Gattuso, F Glass, C M Muscatello, R O’Neill, M Smiley, J Vasquez, M Watkins, D L Brower, J Chen, W X Ding, D Johnson, P Mauzey, M Perry, and C Watts

Subjects
INTERFEROMETERS, POLARISCOPE, QUANTUM cascade lasers, FARADAY effect, MAGNETIC fields
Abstract

A full-scale 120 m path length ITER toroidal interferometer and polarimeter (TIP) prototype, including an active feedback alignment system, has been constructed and undergone initial testing at General Atomics. In the TIP prototype, two-color interferometry is carried out at 10.59 μm and 5.22 μm using a CO2 and quantum cascade laser (QCL) respectively while a separate polarimetry measurement of the plasma induced Faraday effect is made at 10.59 μm. The polarimeter system uses co-linear right and left-hand circularly polarized beams upshifted by 40 and 44 MHz acousto-optic cells respectively, to generate the necessary beat signal for heterodyne phase detection, while interferometry measurements are carried out at both 40 MHz and 44 MHz for the CO2 laser and 40 MHz for the QCL. The high-resolution phase information is obtained using an all-digital FPGA based phase demodulation scheme and precision clock source. The TIP prototype is equipped with a piezo tip/tilt stage active feedback alignment system responsible for minimizing noise in the measurement and keeping the TIP diagnostic aligned indefinitely on its 120 m beam path including as the ITER vessel is brought from ambient to operating temperatures. The prototype beam path incorporates translation stages to simulate ITER motion through a bake cycle as well as other sources of motion or misalignment. Even in the presence of significant motion, the TIP prototype is able to meet ITER’s density measurement requirements over 1000 s shot durations with demonstrated phase resolution of 0.06° and 1.5° for the polarimeter and vibration compensated interferometer respectively. TIP vibration compensated interferometer measurements of a plasma have also been made in a pulsed radio frequency device and show a line-integrated density resolution of m−2. [ABSTRACT FROM AUTHOR]

Published
2017
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31. Individual Rights and the County Medical Society.

Author

Mauzey, H. G.

Abstract

Spokane, Wash, May 17, 1901. TO THE EDITOR: —When a medical man or woman is a graduate of a reputable medical college, and has complied with the laws of his state, regulating the practice of medicine, and is apparently eligible in every way for membership in a county society, if for a trivial reason he is denied admission to his county society, an injury is done that is far reaching in its consequence, both to him, to the local society, to the state society and to the American Medical Association, and it tends to foster and keep alive a general opinion that county societies, as well as the state and national, are conducted for the benefit of the few, and that in place of these organizations being scientific primarily, they have degenerated into social and mutual admiration societies.By denying a person admission into the county society, one is denied

Published
1901
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33. Health care costs.

Author

MURA, KENNETH, MAUZEY, MICHAEL, and ST. AMANT, NICK

Subjects
LETTERS to the editor, MEDICAL care costs, HEALTH insurance
Abstract

Several letters to the editor are presented about health care costs and the U.S. Federal Employees Health Benefits Program (FEHBP).

Published
2009

34. Tests of a full-scale ITER toroidal interferometer and polarimeter (TIP) prototype on the DIII-D tokamak (invited).

Author

Van Zeeland MA, Carlstrom TN, Finkenthal DK, Akiyama T, Boivin RL, Colio A, Du D, Gattuso A, Glass F, Muscatello CM, O'Neill R, Smiley M, Vasquez J, Watkins M, Brower DL, Chen J, Ding WX, Johnson D, Mauzey P, Perry M, Watts C, and Wood R

Abstract

A full-scale ITER toroidal interferometer and polarimeter (TIP) prototype, including an active feedback alignment system, has been installed and tested on the DIII-D tokamak. In the TIP prototype, a two-color interferometry measurement of line-integrated density is carried out at 10.59 μ m and 5.22 μ m using a CO 2 and quantum cascade laser, respectively, while a separate polarimetry measurement of the plasma-induced Faraday effect is made at 10.59 μ m. The TIP prototype is equipped with a piezo tip/tilt stage active feedback alignment system that minimizes noise in the measurement and keeps the diagnostic aligned throughout DIII-D discharges. The measured phase resolution for the polarimeter and interferometer is 0.05° (100 Hz bandwidth) and 1.9° (1 kHz bandwidth), respectively. The corresponding line-integrated density resolution for the vibration-compensated interferometer is δnL = 1.5 × 10 18 m -2 , and the magnetic field-weighted line-integrated density from the polarimeter is δnBL = 1.5 × 10 19 Tm -2 . Both interferometer and polarimeter measurements during DIII-D discharges compare well with the expectations based on calculations using Thomson scattering measured density profiles and magnetic equilibrium reconstructions. Additionally, larger bandwidth interferometer measurements show that the diagnostic is a sensitive monitor of core density fluctuations with demonstrated measurements of Alfvén eigenmodes and tearing modes.

Published
2018
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