Results 81 to 90 of about 27,316 (287)

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source

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

Remote 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, Nereoh Leley, Caleb W. T. Ngaba, Anthony Macharia, Henry Muchiri, Abdalla Kisiwa, Martin Ehbrecht, Delphine Clara Zemp   +7 more
wiley   +1 more source

Rigidity of Holomorphically Projective Mappings of Kähler Spaces with Finite Complete Geodesics

Mathematics
In this work, we consider holomorphically projective mappings of (pseudo-) Kähler spaces. We determine the conditions for finite complete geodesics that must be satisfied for the mappings to be trivial; i.e., these spaces are rigid.
Lenka Vítková, Irena Hinterleitner, Josef Mikeš   +2 more
doaj   +1 more source

Concentration in cross‐border research collaborations and MNCs' knowledge creation in a host country

Strategic Management Journal, EarlyView.
Abstract Research Summary This study elucidates the previously underexplored structural heterogeneity inherent in multinational corporations' (MNCs) internal linkages by examining the concentration of cross‐border collaborations among inventors within host countries.
Jingjing Zhang, Jiatao Li, Yan Yan, Zhenzhen Xie   +3 more
wiley   +1 more source

Some Properties of Geodesic Strongly E-b-vex Functions

International Journal of Analysis and Applications, 2019
Geodesic E-b-vex sets and geodesic E-b-vex functions on a Riemannian manifold are extended to the so called geodesic strongly E-b-vex sets and geodesic strongly E-b-vex functions. Some basic properties of geodesic strongly E-b-vex sets are also studied.
Wedad Saleh
doaj   +2 more sources

Compact affine manifolds with precompact holonomy are geodesically complete [PDF]

, 2015
Luis Aké Hau, Miguel Sánchez
openalex   +1 more source

The coevolution of board interlock networks and corporate strategic actions

Strategic 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, Julia Brennecke, Christiana Weber   +2 more
wiley   +1 more source

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

Structural 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

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

Structural 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

Landscape factors influencing predation on capercaillie nests by two competing mesopredators: pine marten and red fox

Wildlife Biology, EarlyView.
Predation by pine martens Martes martes and red foxes Vulpes vulpes is an important factor influencing the population dynamics of capercaillie Tetrao urogallus. However, there is a knowledge gap regarding the relative effects of these mesopredators on the reproductive success of capercaillie. To better understand how various landscape factors influence
Siow Yan Jennifer Angoh, Scott Michael Brainerd, Olivier Devineau, Morten Odden, Torfinn Jahren   +4 more
wiley   +1 more source