Results 71 to 80 of about 100,982 (265)

Effects of low-Z and high-Z impurities on divertor detachment and plasma confinement

Nuclear Materials and Energy, 2017
The impurity-seeded detached divertor is essential for heat exhaust in ITER and other reactor-relevant devices. Dedicated experiments with injection of N2, Ne and Ar have been performed in DIII-D to assess the impact of the different impurities on ...
H.Q. Wang, H.Y. Guo, T.W. Petrie, A.W. Leonard, D.M. Thomas, J.G. Watkins   +5 more
doaj   +1 more source

Whose Sustainability Counts? Board Governance, ESG Ratings, and Sustainable Development Goals: Evidence on the ESG–SDG Wedge

Business Strategy and the Environment, EarlyView.
ABSTRACT Institutional investors increasingly rely on ESG ratings to evaluate financially material sustainability risks, while governments promote corporate alignment with the United Nations Sustainable Development Goals (SDGs). Because these frameworks differ substantially in capital market salience and monitoring intensity, board oversight may not ...
Mohamed Hegazy, Diego Prior, Mahmoud Zarea   +2 more
wiley   +1 more source

Business and Biodiversity: Scaling Conservation Enterprises Within and Beyond Place for Transformative Change

Business Strategy and the Environment, EarlyView.
ABSTRACT Transformative change is required to address persistent and systemic drivers of biodiversity loss. There is an urgent need for innovative solutions that tackle root causes in place‐specific contexts. Evidence indicates that small, innovative, purpose‐driven businesses can serve as vehicles for developing place‐based solutions.
Shova Thapa Karki, Bradley D. Parrish
wiley   +1 more source

Regulation compliant AI for fusion: explainable image-based feedback control of divertor detachment in DIII-D tokamak

Nuclear Fusion
While artificial intelligence (AI) has been promising for fusion control, its inherent black-box nature will make compliant implementation in regulatory environments a challenge.
Nathaniel Chen, Cheolsik Byun, Azarakhsh Jalalvand, Sangkyeun Kim, Andrew Rothstein, Filippo Scotti, Steve Allen, David Eldon, Keith Erickson, Egemen Kolemen   +9 more
doaj   +1 more source

2D distribution of hydrogen/impurity radiation and flow formation in stochastic layer during detachment transition in LHD

Nuclear Materials and Energy, 2017
2D distribution of hydrogen/impurity radiation and impurity flow have been measured in the edge stochastic layer of LHD during detachment transition by using a newly developed visible spectrometer system with 130 channel optic fiber array.
M. Kobayashi, S. Morita, M. Goto
doaj   +1 more source

Growth limiting conditions and denitrification govern extent and frequency of volume detachment of biofilms [PDF]

, 2013
This study aims at evaluating the mechanisms of biofilm detachment with regard of the physical properties of the biofilm. Biofilms were developed in Couette–Taylor reactor under controlled hydrodynamic conditions and under different environmental growth ...
Coufort, Carole, Queinnec, Isabelle, Derlon, Nicolas, Paul, Etienne, Coufort-Saudejaud, Carole   +4 more
core   +1 more source

Circular Economy in Crisis Contexts: An Assessment Framework for Post‐Disaster Building Stock Toward Strategic Autonomy

Business Strategy and the Environment, EarlyView.
ABSTRACT Post‐disaster contexts generate large volumes of damaged building stock with significant, yet often unquantified, circularity potential. Through the lens of strategic management, the circular economy emerges as a transformative pathway to strengthen systemic resilience by reducing dependencies on external resources and mitigating supply chain ...
Tetiana Shevchenko, Julian Kirchherr, Meisam Ranjbari, Bernard Yannou, Michael Saidani   +4 more
wiley   +1 more source

Integration of full divertor detachment with improved core confinement for tokamak fusion plasmas. [PDF]

Nat Commun, 2021
Wang L, Wang HQ, Ding S, Garofalo AM, Gong XZ, Eldon D, Guo HY, Leonard AW, Hyatt AW, Qian JP, Weisberg DB, McClenaghan J, Fenstermacher ME, Lasnier CJ, Watkins JG, Shafer MW, Xu GS, Huang J, Ren QL, Buttery RJ, Humphreys DA, Thomas DM, Zhang B, Liu JB.   +23 more
europepmc   +1 more source

Results from recent detachment experiments in alternative divertor configurations on TCV [PDF]

, 2017
Divertor detachment is explored on the TCV tokamak in alternative magnetic geometries. Starting from typical TCV single-null shapes, the poloidal flux expansion at the outer strikepoint is varied by a factor of 10 to investigate the X-divertor ...
C. Tsui, H. Reimerdes, B. Labit, Vijvers, W., EUROfusion MST1 Team, Reimerdes, H, Vijvers, W. A. J., Labit, B., Innocente, P, Vianello, N., Harrison, J, Elmore, S, J. A. Boedo, Tsui, C, Lunt, T, Innocente, P., Kruezi, U, Vianello, N, Harrison, J., Verhaegh, K., U. Kruezi, Sheikh, U., S.H.M. van Limpt, K. Verhaegh, Nespoli, F., A.J. Thornton, Theiler, C., Boedo, J. A., B.P. Duval, Duval, B., Lipschultz, B, Maurizio, R, Thornton, A., van Limpt, S. H. M., Labit, B, Vijvers, W A J, van Limpt, S H M, Elmore, S., Lunt, T., Lipschultz, B., T. Lunt, TCV team, Boedo, J., F. Nespoli, Reimerdes, H., Vijvers, W. A.J., Thornton, A. J., Duva, B P, Nespoli, F, Tsui, C., Thornton, A J, C. Theiler, Maurizio, R., Limpt, S., Sheikh, U, Duval, B. P., B. Lipschultz, N. Vianello, S. Elmore, J. Harrison, Kruezi, U., Theiler, C, W.A.J. Vijvers, Van Limpt, S. H.M., R. Maurizio, U. Sheikh, P. Innocente, Verhaegh, K   +67 more
core   +1 more source

Effects of divertor electrical drifts on particle distribution and detachment near the divertor target plate in DIII-D

, 2021
Strong impacts of drifts on the divertor plasma in–out asymmetry and detachment are demonstrated in DIII-D with an open divertor configuration. For forward toroidal field, BT, i.e., with the ion B × ∇B drift toward the divertor, the particle flux to the ...
D. M. Thomas, J. Ren, J. Boedo, H. Y. Guo, Wang, H. Q., Ren, J., Järvinen, Aaro E.; id_orcid, Boedo, J., M. Groth, A. E. Jarvinen, Thomas, D. M., H. Q. Wang, Leonard, A. W., A. W. Leonard, Groth, M., Guo, H. Y., J. G. Watkins, Jarvinen, A. E., Watkins, J. G.   +18 more
core   +1 more source