Results 91 to 100 of about 56,454 (282)

Late summer plateau pika spatial habitat use revealed by high‐resolution wildlife tracking and unmanned aerial vehicle data on the Qinghai‐Tibet Plateau

Grassland Research, EarlyView.
Tiny “ecosystem engineers,” plateau pikas range across 1600 m², about two basketball courts, mixing soil and nutrients that sustain Tibet's fragile grasslands. Custom‐made trackers and drone imagery show dawn‐to‐dusk surface foraging and nested‐scale patch choices, offering fresh guidance for wildlife‐friendly grazing management.
Dan Li, Johannes M. H. Knops, Li Li
wiley   +1 more source

Simulation of rotating drum experiments using non-circular particles

, 1995
We investigate the flow of granular material in a rotating cylinder numerically using molecular dynamics in two dimensions. The particles are described by a new model which allows to simulate geometrically complicated shaped grains.
Allen, Barker, Baumann, Baumann, Baumann, Bretz, Buchholtz, Cundall, Gallas, Gear, Haff, Hans-Jürgen Tillemans, Hashimoto, Herrmann, Hertz, Hogue, Jullien, Mustoe, Pöschel, Pöschel, Rajchenbach, Ristow, Rolf, Rothkegel, Stronge, Thorsten Pöschel, Tillemans, Timoshenko, Visscher, Volkhard Buchholtz, Walton, Woodle   +31 more
core   +2 more sources

Designing Face Detection Systems with Gray Wolf Optimization

Iraqi Journal for Electrical and Electronic Engineering
The main objective of this paper project was to create a state-of-the-art face identification technique that can handle the various difficulties caused by changes in illumination, occlusions, and facial emotions. Face detection is a cornerstone of computer vision, facilitating diverse applications ranging from surveillance systems to human-computer ...
Noor Sabah Abbod, Jamshid B. Mohasefi
openaire   +1 more source

Type 2 Diabetes Prediction using Gray Wolf Optimization Algorithm

Indian Journal of Forensic Medicine & Toxicology, 2021
Background: Increasing the number of diabetic patients and the ignorance of most of these patients aboutthe dangers arising from it is a challenge that threatens human lives.Materials and Method: In this paper, a new solution based on the Gray Wolf Optimization (GWO) algorithmfor predicting type 2 diabetes is presented. The main purpose of the proposed
openaire   +2 more sources

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee, Majid Rajaei, Mohammad Hossein Mahdavi Nasab, Parsa Shafiei   +3 more
wiley   +1 more source

Individual variation in perceived density of conspecifics and its impacts on the realization of ecological niches

Oikos, EarlyView.
Animals gather information about their surroundings, including their social environment, using a wide range of sensory modalities. Variation in reception, processing and interpretation of information (cues or signals) can lead to differences in how individuals perceive their local environment. Yet, how individual differences in environmental perception
Ane Liv Berthelsen, Barbara A. Caspers, Nayden Chakarov, Alexandra K. Childs, Angelica Coculla, Melanie Dammhahn, Maria Moiron, Max Mühlenhaupt, Caroline Müller, Jules Petit, Tim M. Rapp, Nora K. E. Schulz, Svenja Stoehr, David L. J. Vendrami   +13 more
wiley   +1 more source

Matching habitat choice could be brightness‐based instead of hue‐based in green‐brown polymorphic grasshoppers

Oikos, EarlyView.
Some prey species have evolved background matching, that is they resemble their surrounding environment in terms of colour and/or brightness. When prey populations inhabit patchy environments, they may even have evolved specialised phenotypes: each phenotype matching a specific subset of patches.
Lilian Cabon, Holger Schielzeth
wiley   +1 more source

Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau

People and Nature, EarlyView.
Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley   +1 more source

Analysis of optimal configuration of energy storage in wind-solar micro-grid based on improved gray wolf optimization

Science and Technology for Energy Transition
To make full use of the electric power system based on energy storage in a wind-solar microgrid, it is necessary to optimize the configuration of energy storage to ensure the stability of a multi-energy system.
Huang Qian, Huang Dengke, Cai Li, Xu Qingshan   +3 more
doaj   +1 more source

Modeling Fiber Dispersion in a Single‐Screw Extruder for Long Fiber‐Reinforced Thermoplastics

Polymer Composites, EarlyView.
Fiber dispersion throughout the screw channel ABSTRACT Understanding the mechanics of fiber attrition during the plasticizing process is important in predicting the strength of long fiber‐reinforced thermoplastics (LFT) composites. Fiber dispersion has been found to impact fiber damage during processing and therefore final fiber length in the final ...
Hector Sebastian Perez, Paula Hohoff, Florian Hiller, Angel Yanev, Tim Osswald   +4 more
wiley   +1 more source