Results 81 to 90 of about 22,415 (310)

Genesis of indifference thresholds and infinitely many indifference points in discrete time infinite horizon optimisation problems [PDF]

open access: yes
This article investigates the discrete time indifference-attractor bifurcation of infinite horizon continous-time optimal control problems with a single state variable.
Wagener, F.O.O., Moghayer, S.
core  

Leaching-resistant armor nano-cobalt embedded biochar for efficient removal of sulfamethoxazole and microcystin-LR via PMS activation

open access: yesWater Cycle
Environmentally remediation demands sustainable catalytic solutions that combine high efficiency with low environmental impact. This study presents a novel strategy for preparing a composite of N-doped carbon layer-encapsulated armor Co nanoparticles ...
Fengling Rao   +9 more
doaj   +1 more source

Towards Transformative Climate Governance: Capacities and Constraints for Local Government in Aotearoa New Zealand

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT An emerging consensus calls for transformative climate governance. However, what instigates and sustains transformative pathways remains unclear. This study characterises the existence, quality and structural underpinnings of transformative governance capacities in local government climate change response in Aotearoa New Zealand, applying a ...
Gangadari K. Ranawaka   +3 more
wiley   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

open access: yesGeological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao   +4 more
wiley   +1 more source

Managing the environment and the economy in the presence of hysteresis and irreversibility [PDF]

open access: yes
The shallow lake optimal management problem is one of the simplest ecological-economic interest conflict models for which several qualitatively different long run outcomes are possible.
Wagener, F.O.O., Heijnen, P.
core  

Bifurcations of optimal vector fields in the shallow lake model

open access: yes, 2009
The solution structure of the set of optimal solutions of the shallow lake problem, a problem of optimal pollution management, is studied as we vary the values of the system parameters: the natural resilience, the relative importance of the resource for ...
Kiseleva, T.   +5 more
core   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

open access: yesGeological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang   +3 more
wiley   +1 more source

Wild-induced resuspension in a small shallow lake

open access: yes, 1992
Resuspension of inorganic sediments in a very shallow Swedish lake is studied using settling sediment traps and measurements of suspended matter. Theoretical aspects of resuspension dynamics is discussed emphasizing special shallow lake aspects.
Bengtsson, Lars   +3 more
core   +1 more source

Phosphorus flux by macrobenthic invertebrates in a shallow eutrophic lake Donghu: spatial change

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
We estimated phosphorus flux mediated by benthic invertebrates from the sediments to the water in a shallow eutrophic lake (lake Donghu, central China) and quantified spatial (littoral and central sites) and specific (among different ...
Ji L.   +7 more
doaj   +1 more source

Tectono‐Sedimentary Evolution of the Neogene İnegöl Basin (NW Anatolia): Constraints on Transtensional Basin Development at the Junction of the Western Anatolian Extensional Province and the North Anatolian Fault Zone

open access: yesGeological Journal, EarlyView.
The study outlines the tectono‐sedimentary evolution of the İnegöl Basin in north‐western Anatolia. Basin formation was controlled by interacting extensional and strike‐slip fault systems linked to uplift of the Uludağ Massif. Terrestrial sedimentation from the Miocene to Pleistocene is reconstructed using abundant fossil mammal assemblages that ...
M. Cihat Alçiçek   +2 more
wiley   +1 more source

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