Results 111 to 120 of about 399,123 (289)

The convex hulls of the vertices of a polygon of ordern [PDF]

, 1971
Douglas Derry
openalex   +1 more source

Age‐based δ15N and δ13C values of otolith organic matter reveal trophic ecology in marine fishes

Limnology and Oceanography Letters, EarlyView.
Abstract Fish inhabiting similar environments face space and resource constraints, develop diverse feeding strategies, and adjust their trophic niches during ontogeny to reduce competition. To investigate this process, we reconstructed the trophic trajectory of five species of the family Sciaenidae by analyzing δ13C and δ15N values in otolith organic ...
Mu‐Ting Li, Jen‐Chieh Shiao, Chien‐Hsiang Lin, Li‐Ling Kao, Han‐Chun Hsiao, Chi‐Yuan Hsieh, Pei‐Ling Wang, Peter Grønkjær, Ming‐Tsung Chung   +8 more
wiley   +1 more source

Limit theorems for convex hulls [PDF]

, 1988
Piet Groeneboom
openalex   +1 more source

Cost‐Efficient Detection of Plastics From Post‐Consumer Packaging Waste Using Selected Bands in the Near‐infrared Spectrum

Macromolecular Materials and Engineering, EarlyView.
The proposed method aims to reduce the system complexity of the sensor system for sorting plastic waste by using optical wavelength filters to capture the reflection of specific wavelengths instead of the entire spectra. The study demonstrates the feasibility of distinguishing high‐density polyethylene (HDPE), low‐density polyethylene (LDPE ...
Teresa Werner, Michael Dawoud, Doris Aschenbrenner, Iman Taha   +3 more
wiley   +1 more source

On the convex hull of random points in a polytope [PDF]

, 1988
Rex A. Dwyer
openalex   +1 more source

Latent space reconstruction for missing data problems in CT

Medical Physics, EarlyView.
Abstract Background The reconstruction of a computed tomography (CT) image can be compromised by artifacts, which, in many cases, reduce the diagnostic value of the image. These artifacts often result from missing or corrupt regions in the projection data, for example, by truncation, metal, or limited angle acquisitions.
Anton Kabelac, Elias Eulig, Joscha Maier, Maximilian Hammermann, Michael Knaup, Marc Kachelrieß   +5 more
wiley   +1 more source

Computational Fluid Dynamics Simulation and Quantification of Solar Greenhouse Temperature Based on Real Canopy Structure

Agronomy
The temperature distribution of the cucumber canopy in an energy-saving solar greenhouse was simulated in this study. The canopy temperature data of autumn and winter cucumber were collected using temperature sensors, and the spatial heterogeneity of ...
Maolin Hou, Demin Xu, Zhi Wang, Lei Meng, Liang Wang, Yuntao Ma, Jinyu Zhu, Chunli Lv   +7 more
doaj   +1 more source

On a Variant of the Minimum Path Cover Problem in Acyclic Digraphs: Computational Complexity Results and Exact Method

Networks, EarlyView.
ABSTRACT The Minimum Path Cover (MPC) problem consists of finding a minimum‐cardinality set of node‐disjoint paths that cover all nodes in a given graph. We explore a variant of the MPC problem on directed acyclic graphs (DAGs) where, given a subset of arcs, each path within the MPC should contain at least one arc from this subset.
Nour ElHouda Tellache, Roberto Baldacci
wiley   +1 more source

Plant species diversity and abundance of functional groups influence net nitrogen mineralization along productivity gradients in montane Calluna‐dominated heathlands

PLANTS, PEOPLE, PLANET, EarlyView.
Heathlands are globally important ecosystems that provide key functions and services but are increasingly threatened by land use changes. We investigated how plant diversity and productivity influence nitrogen cycling under different management regimes.
José Manuel Fernández‐Guisuraga, Leonor Calvo, Elena Marcos   +2 more
wiley   +1 more source

Toward Useful Quantum Kernels

Advanced Quantum Technologies, EarlyView.
The hybrid approach to Quantum Supervised Machine Learning is compatible with Noisy Intermediate Scale Quantum (NISQ) devices but hardly useful. Pure quantum kernels requiring fault‐tolerant quantum computers are more promising. Examples are kernels computed by means of the Quantum Fourier Transform (QFT) and kernels defined via the calculation of ...
Massimiliano Incudini, Francesco Martini, Alessandra Di Pierro   +2 more
wiley   +1 more source