Results 121 to 130 of about 130,788 (348)

On the compatibility of single‐scan terrestrial LiDAR with digital photogrammetry and field inventory metrics of vegetation structure in forest and agroforestry landscapes

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu   +7 more
wiley   +1 more source

Falling into the Past: Geodesics in a Time Travel Metric

open access: yesUniverse
We investigate timelike and null geodesics within the rotating “time machine” spacetime proposed by Ralph, T.C.; et al. Phys. Rev. D 2020, 102, 124013. This is a rotating analogue of Alcubierre’s warp drive spacetime.
Colin MacLaurin   +2 more
doaj   +1 more source

Evaluating the Role of Social Capital for the Design of Sustainable River Governance Strategies: The Case of Tagus River

open access: yesSustainable Development, EarlyView.
ABSTRACT This study examines the role of social capital in designing and implementing more effective governance strategies to improve the state of the Tagus River's significantly deteriorated middle reach (Spain). We employed social network analysis (SNA) to evaluate the bonding, bridging and linking social capital and the quality of stakeholder ...
Leticia Blázquez   +2 more
wiley   +1 more source

The coevolution of board interlock networks and corporate strategic actions

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Studies on board interlock networks are divided into two streams, one examining their dynamics; the other, their consequences. We propose that both phenomena—board interlock dynamics and consequences—are interdependent. Applying structuration theory, we explain and empirically demonstrate how firms' corporate strategic actions
Steffen Triebel   +2 more
wiley   +1 more source

Experimental investigation on the cracking process of primary and secondary cracks in thick concrete members

open access: yesStructural Concrete, EarlyView.
Abstract The decisive reinforcement of thick concrete members is often determined by the minimum reinforcement for crack control due to restraint stresses. In contrast to the heuristic design model in Eurocode 2, a mechanically sound methodology is only provided if the deformation compatibility is considered.
Christina Krenn, Dirk Schlicke
wiley   +1 more source

An approach for designing a surface pencil through a given geodesic\n curve [PDF]

open access: green, 2014
Gülnur Şaffak Atalay   +3 more
openalex   +1 more source

A new smooth failure criterion for concrete inspired by Lubliner's condition

open access: yesStructural Concrete, EarlyView.
Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley   +1 more source

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