Results 101 to 110 of about 6,062,653 (249)

Hydro‐Mechanical Modelling of Gas Migration in Bentonite: Formulation and Laboratory‐Scale Validation

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Gas generation and migration in bentonite buffer materials are critical processes affecting the performance of deep geological repositories for radioactive waste. This study presents a new hydro‐mechanical formulation for simulating gas migration in saturated, compacted bentonite, with particular emphasis on the role of non‐uniform stress ...
Desmond Talamwin Sunkpal, Mamadou Fall
wiley   +1 more source

A note on withdrawal from a fluid of finite depth through a point sink [PDF]

open access: yes, 2002
The problem of withdrawal through a point sink of water from a fluid of finite depth with a free surface is considered. Assuming the flow to be axisymmetric, it is found that there is a maximum Froude number at which such flows can exist.
Forbes, L.K.   +2 more
core  

The Active‐Passive Vehicle Routing Problem With Item Transshipments

open access: yesNetworks, EarlyView.
ABSTRACT This paper addresses a vehicle routing problem with synchronization constraints, in which pickup‐and‐delivery requests for single items are carried out using two types of vehicles: active and passive. The vehicles operate jointly, as passive vehicles, which are capacitated trailers, require active vehicles, which are autonomous trucks without ...
Biljana Roljić   +2 more
wiley   +1 more source

Exact Methods for the Cumulative Capacitated Vehicle Routing Problem With Time Windows

open access: yesNetworks, EarlyView.
ABSTRACT This article studies the cumulative capacitated vehicle routing problem with time windows (CCVRPTW). The CCVRPTW consists of deciding the routing schedules for a set of homogeneous capacitated vehicles such that the latency, that is, the sum of the service start times at the customers, is minimized and the time windows as well as the vehicle ...
Alan Osorio‐Mora, Timo Gschwind
wiley   +1 more source

Recent advances in the long-distance transport of sugars by the phloem and consequences on source-sink relations

open access: yes, 2023
International audienceThe distribution of photoassimilates in the plant relies on the phloem functions from source to sink organs. Phloem sugar transport is regulated by SUC/SUT and SWEET sugar transporters. We observed that deregulation of SUT1 or SUT2
Le Hir, Rozenn   +5 more
core   +1 more source

Caring for forests between attitude and platitude. Social relationships with nature in industrial forestry in Äänekoski, Finland

open access: yesPeople and Nature, EarlyView.
Abstract Forests play a pivotal role in sustainability transitions. This article explores how people's relationships with forests, particularly how they care for or take care of them, shape and reflect broader tendencies and tensions in forest utilization and governance.
Jana Rebecca Holz
wiley   +1 more source

Forest governance and the politics of care: Practices, subjectivities and more‐than‐human‐relations in contemporary conservation regimes in Guaviare, Colombia

open access: yesPeople and Nature, EarlyView.
Abstract Market‐based conservation instruments such as REDD+ and Payments for Ecosystem Services (PES) have been promoted to curb deforestation in the Colombian Amazon. Yet these schemes remain contested, as they advance neoliberal conservation and reproduce gender inequalities.
Sandra Ángel Moreno   +2 more
wiley   +1 more source

Iron(III) ion reinforced P(NiPAAm‐co‐AA) beads as tunable smart organogels

open access: yesPolymer International, EarlyView.
Macroporous beads of PNiPAAm‐co‐AA copolymers were further crosslinked by iron(III) ions. The resulting beads are mechanically robust and reversibly responsive to a change of solvent from ethanol to ethyl acetate with half‐lives in the range of minutes.
Johannes Gmeiner   +2 more
wiley   +1 more source

Low‐order system for eddy growth in the storm track

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Reanalysis data for the North Atlantic storm track are used to construct a low‐order model that optimally fits the observed interaction between the mean flow and baroclinic eddies. The resulting model is a certain type of predator–prey model. It explains various properties of the storm track, including why eddies grow linearly with the Eady growth rate,
Maarten H. P. Ambaum, Thomas H. A. Frame
wiley   +1 more source

Sustainability and Corporate Performance in the Global South: The Influence of the Environmental Pillar and Institutional Quality

open access: yesSustainable Development, EarlyView.
ABSTRACT Corporate sustainability in the Global South unfolds under heterogeneous institutional conditions, where firms face simultaneous pressures from global ESG standards and local governance constraints. This study examines the relationship between ESG‐aligned environmental practices and corporate financial performance, considering the moderating ...
Paulo Sérgio Reinert   +3 more
wiley   +1 more source

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