Results 131 to 140 of about 4,819,979 (323)

How Does Landscape Structure Affect Dung Beetle Assemblages in Amazon Cities?

Ecology and Evolution
The growth of cities is one of the main direct and indirect factors responsible for the loss of native vegetation cover. Urbanization directly affects the biological communities inhabiting forest remnants inserted in cities, compromising the maintenance ...
Vanessa Pontes Mesquita, Glenda Vanessa dos Santos Bernardino, Paulo Estefano Dineli Bobrowiec, Renato Portela Salomão, Cintia Cornelius   +4 more
doaj   +1 more source

First‐Principles Modeling of Solid Solution Softening and Hardening Effects in Al–Mg–Zr–Si Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay, Zhengqing Wei, Nebahat Bulut, Sibylle Gemming   +3 more
wiley   +1 more source

Border-Enhanced Triple Attention Mechanism for High-Resolution Remote Sensing Images and Application to Land Cover Classification

Remote Sensing
With the continuous development and popularization of remote sensing technology, remote sensing images have been widely used in the field of land cover classification. Since remote sensing images have complex spatial structure and texture features, it is
Guoying Wang, Jiahao Chen, Lufeng Mo, Peng Wu, Xiaomei Yi   +4 more
doaj   +1 more source

A characterisation of edge-affine $2$-arc-transitive covers of $\K_{2^n,2^n}$ [PDF]

, 2022
Daniel R. Hawtin, Cheryl E. Praeger, Jin‐Xin Zhou   +2 more
openalex   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Development of Aluminum Scandium Alloys for Hydrogen Storage Valves

Advanced Engineering Materials, EarlyView.
Different aluminum alloy series and various aluminum‐scandium alloys with differing Sc and Zr levels are evaluated for use in hydrogen storage valve production. The alloys undergo hardness testing, optical microscopy, and tensile strength analysis, with hardening behavior studied under varying conditions.
Francisco García‐Moreno, Tillmann Robert Neu, Markus Eberl, Paul Hans Kamm, Hans‐Wolfgang Seeliger   +4 more
wiley   +1 more source

High‐Temperature Oxidation of the CrFeNi Medium‐Entropy Alloy

Advanced Engineering Materials, EarlyView.
The oxidation behavior of equiatomic CrFeNi MEA is a key issue that determines this material's suitability for high‐temperature application. The understanding of long‐term behavior is even more crucial than short‐term corrosion effects. The alloy is exposed to synthetic air at 1000, 1050, and 1100 °C for 24, 100, and 1000 h and systematically compared ...
Anna Maria Manzoni, Wencke Mohring, Mike Schneider, Guillaume Laplanche, Sebastian Peter Hagen, Christiane Stephan‐Scherb   +5 more
wiley   +1 more source

Constraint Solving via Fractional Edge Covers [PDF]

, 2017
Martin Grohe, Dániel Marx
openalex   +1 more source

Changes in weed vegetation across transects in maize fields

Basic and Applied Ecology
Weed vegetation in Central Europe has strongly changed during the last decades in response to changing agricultural practices. In addition, the cultivation of certain crops such as maize has expanded strongly.
Franz Essl, Swen Follak, Michael Glaser
doaj   +1 more source

Bounding the edge cover of a hypergraph [PDF]

, 2021
Farhad Shahrokhi
openalex   +1 more source