Results 101 to 110 of about 6,127 (265)

Simultaneous 3/4‐power scaling of leaf mass and 2/3‐power scaling of leaf area with stem mass in plants

Grassland Research, EarlyView.
Abstract Background Plant allometry theory developed in the last century focused on 2/3‐power scaling, determined by light interception considerations. More recently, 3/4‐power scaling based on the properties of vascular distribution networks has been proposed.
Cory Matthew, Hans Pretzsch, Rüdiger Grote   +2 more
wiley   +1 more source

Hybrid Picard S-iteration for escape analysis, symmetry, computational insights, and visualization of complex fractals

Mathematical and Computer Modelling of Dynamical Systems
For the visualization of fractals, iterative schemes are fundamental and serve as important tools. In this paper, we introduce an escape criterion using the Hybrid Picard S-iteration to visualize fractals for the function [Formula: see text], where ...
Anita Tomar, Saurabh Sharma, Sanjay Kumar Padaliya, Mohammad Sajid   +3 more
doaj   +1 more source

The study of fractals among ecologists=O estudo dos fractais entre os ecólogos [PDF]

Acta Scientiarum: Biological Sciences, 2012
Fractals seemed to have permeated most scientific fields, including ecology. In fact, biodiversity and ecological processes are affected by spatial complexity, and fractals can help understand patterns at multiple scales.
Roger Paulo Mormul, André Andrian Padial   +1 more
doaj  

Temperature–strain decoupled electronic skin for human–machine interaction

InfoMat, EarlyView.
Temperature fluctuations can cause signal drift in wearable strain sensors, interfering with human‐motion monitoring. This study integrates a serpentine strain sensor with a miniature thermistor and uses a temperature–strain calibration model to compensate for temperature‐induced resistance changes in real time, suppressing thermal drift while ...
Miao Kong, Shengwei Gao, Jiaxin Zhuang, Zilin Wang, Hao Sun, Panqi Huang, Xue Wang, Yuqing Zhang, Rui Paulo Martins, Pui In Mak, Songshan Zeng, Jianwei Li, Deyuan Wei, Rui Shi, Ying Hong, Yingli Shi, Ruiqi Guo, Shiyuan Liu, Xinge Yu, Yiming Liu   +19 more
wiley   +1 more source

Analysis of the effect of COVID‐19 on crude oil and agricultural commodity market relationships

Journal of the Agricultural and Applied Economics Association, EarlyView.
Abstract This study examines the COVID‐19 pandemic's effect on relationships between crude oil and agricultural commodity markets. Using a Time‐Varying Parameter Vector Autoregressive model, we find strong volatility transmission, with Brent, WTI, corn, and soybean prices acting as net shock transmitters, while cotton and wheat are net receivers ...
Derick Adu, Darren Hudson, Khondoker Abdul Mottaleb   +2 more
wiley   +1 more source

Looking at Soil as It Is: Evolution of Microscopic Soil Characterization From Kubiëna to Artificial Intelligence

Journal of Plant Nutrition and Soil Science, EarlyView.
We provide a historic overview of microscopic soil structure characterization from its founding father, Walter Kubiëna, to several technical revolutions like automation, digitalization, and artificial intelligence. In addition to technical advancements, we explore how concepts and research questions have evolved in time.
Steffen Schlüter, Maik Geers‐Lucas, Peter Kühn, Hans‐Jörg Vogel   +3 more
wiley   +1 more source

Multi‐Objective Spatial Optimization of Cropland Layouts in Highly Urbanized Regions: Evidence From Dongguan, China

Land Degradation &Development, EarlyView.
ABSTRACT Cropland protection in highly urbanized regions requires reconciling stable quantitative‐qualitative targets with the functional optimization of extremely fragmented spatial structures. This study develops a patch‐level multi‐objective spatial reconfiguration framework of cropland layouts based on the Non‐dominated Sorting Genetic Algorithm‐II
Zhibang Luo, Bowen Zhang, Dianfeng Liu
wiley   +1 more source

Fractal dimension accounts for allometric scaling exponents of cities

Heliyon
Fractal theory has long been used to explain the scaling exponent of allometric growth models. However, the relationship between fractals and allometry is still questioned by some scholars. One viewpoint is that fractals involve scaling laws, but scaling
Yanguang Chen
doaj   +1 more source

A Sequential One‐Pot Block Copolymer Synthesis: Toward Mesoporous Carbon Materials for Selective CO2 Adsorption

Macromolecular Rapid Communications, EarlyView.
A sequential one‐pot photo‐iniferter RAFT method greatly simplifies the synthesis of PAN‐based block copolymers, offering quick access to hierarchically porous, N‐doped carbon membranes. This scalable and reliable process allows for easy fabrication of functional materials important for carbon capture applications.
Björn Schmidt, Stefan Heißler, Alexei Nefedov, Jakob Becker, Udo Geckle, Simon Buchheiser, Frank Rhein, Tao Chen, Patrick Théato, Martina Plank   +9 more
wiley   +1 more source

Parkinson's Disease and Retinal Age Gap: A Cross‐Sectional Analysis

Movement Disorders, EarlyView.
Abstract Background Deep‐learning models are capable of predicting age from retinal scans and the difference between this and chronological age, retinal age gap, has been shown to be significantly associated with risk of mortality, cardiovascular diseases, and kidney failure.
Akshay Narayan, Oscar Earle, Yukun Zhou, Axel Petzold, Rimona S. Weil, Alastair K. Denniston, Anthony P. Khawaja, Pearse A. Keane, Zhuoting Zhu, Siegfried K. Wagner   +9 more
wiley   +1 more source