Results 111 to 120 of about 32,193 (219)

Accelerating Full‐Wave Antenna Optimization: An Adaptive Surrogate‐Assisted Differential Evolution Framework

Engineering Reports, Volume 8, Issue 5, May 2026.
An adaptive surrogate‐assisted differential evolution framework integrates machine learning‐based surrogate modeling with selective full‐wave electromagnetic validation to accelerate antenna optimization. A CST–Python workflow combines Latin‐hypercube sampling, cross‐validated model selection, and iterative dataset refinement to guide the search toward
Muhammad Farooq, Shahid Bashir, Mohammad Haseeb Zafar, Ruhul Amin Khalil   +3 more
wiley   +1 more source

Mapping wild vascular plant species diversity in urban areas in California using crowdsourcing data by regression kriging: Examining socioeconomic disparities. [PDF]

Sci Total Environ, 2023
Li M, Masri S, Chiu CH, Sun Y, Wu J.
europepmc   +1 more source

Fault‐Mediated Groundwater‐Surface Water Mixing Amplifies Hydrochemical/Hydrological Dynamics in a Semi‐Arid Volcanic Lake Basin

Hydrological Processes, Volume 40, Issue 5, May 2026.
Isotopes data help to understand the GW‐SW connectivity, the recharge elevations, and evaporation in a volcanic lake basin. ABSTRACT Understanding groundwater (GW) to surface water (SW) connectivity (i.e., the exchange of water and solutes between aquifers and surface bodies) is increasingly important under changing climate conditions, where ...
L. Ramírez‐González, S. Olea‐Olea, R. E. Villanueva‐Estrada, M. A. Mejía‐González, L. González‐Hita, E. Morales‐Casique, O. Zamora‐Martínez, M. G. Gómez‐Vasconcelos, Denis‐Ramón Avellan, N. Ramírez‐Serrato   +9 more
wiley   +1 more source

Soil Carbon Stock and Particle Size Fractions in the Central Amazon Predicted from Remotely Sensed Relief, Multispectral and Radar Data

Remote Sensing, 2017
Soils from the remote areas of the Amazon Rainforest in Brazil are poorly mapped due to the presence of dense forest and lack of access routes. The use of covariates derived from multispectral and radar remote sensors allows mapping large areas and has ...
Marcos B. Ceddia, Andréa S. Gomes, Gustavo M. Vasques, Érika F. M. Pinheiro   +3 more
doaj   +1 more source

Sunshine Duration in Brazil From Meteosat (1983–2020): Climatology, Variability and Long‐Term Trends

International Journal of Climatology, Volume 46, Issue 6, May 2026.
Using nearly four decades of Meteosat satellite data (1983–2020), this study presents a country‐wide climatology of sunshine duration (SDU) in Brazil. The results reveal marked regional contrasts, dominant modes of variability, and significant long‐term trends, providing new information on the most relevant meteorological systems that influence SDU and
Maria Lívia Lins Mattos Gava, Simone Marilene Sievert da Costa, Íris Paraguay Silva   +2 more
wiley   +1 more source

From Fjord to Shelf: Drivers of Organic Carbon Transformation and Storage Across Connected Marine Sedimentary Systems

Global Biogeochemical Cycles, Volume 40, Issue 5, May 2026.
Abstract Continental shelf sediments play a key role in the global carbon cycle through the long‐term storage of organic carbon (OC). However, outside of a few continental shelves dominated by large rivers our understanding of the mechanisms that drive the remineralization, burial and storage of OC across these sedimentary systems is underdeveloped. In
C. Smeaton, W. Hiles, P. Gulliver, W. E. N. Austin   +3 more
wiley   +1 more source

REGIONALIZATION OF PROBABLE RAINFALL USING REGRESSION ANALYSIS AND KRIGING

Doboku Gakkai Ronbunshu, 1992
地域内のいくつかの観測地点のデータから, 観測データのない地点の推定量を求める方法について検討する. 本研究では, 特に流域内任意地点の確率雨量を対象として, それを推定するのに, 回帰分析法と kriging 法を用いる. これらの方法によれば, 任意地点の確率雨量の推定値のみならず, その推定精度も得られる. 地形効果を考慮するために, 回帰分析法と kriging 法を組み合わせた方法を試みる. 野洲川流域を対象として, 上記の方法の推定精度を比較検討して, その利害得失を明らかにしている.
Kaoru TAKARA, Akio OKA
openaire   +2 more sources

Decadal Erosion Rates and Sediment Buffering Identified Through Enhanced DEM Differencing Using Underutilized Global Satellite DEMs

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 5, May 2026.
Abstract Quantifying decadal‐scale erosion rates in tectonically active regions is essential for assessing landscape hazards and constraining sediment budgets. A key question in Earth surface processes is how contemporary erosion measurements influenced by recent climatic extremes relate to long‐term geological rates.
Gopal Kumar, Yu‐Chang Chan, Cheng‐Wei Sun, Chih‐Tung Chen   +3 more
wiley   +1 more source

Reconstructing Historical Land Cover Type and Complexity by Synergistic Use of Landsat Multispectral Scanner and CORONA

Remote Sensing, 2017
Survey data describing land cover information such as type and diversity over several decades are scarce. Therefore, our capacity to reconstruct historical land cover using field data and archived remotely sensed data over large areas and long periods of
Amir Reza Shahtahmassebi, Yue Lin, Lin Lin, Peter M. Atkinson, Nathan Moore, Ke Wang, Shan He, Lingyan Huang, Jiexia Wu, Zhangquan Shen, Muye Gan, Xinyu Zheng, Yue Su, Hongfen Teng, Xiaoyan Li, Jinsong Deng, Yuanyuan Sun, Mengzhu Zhao   +17 more
doaj   +1 more source

Mechanisms of Vegetation Community Self‐Organization Driven by Water Availability in Arid Northwest China

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Precipitation is scarce in arid regions, making water redistribution a key driver of vegetation patterns, especially for non‐zonal vegetation in oases. Nevertheless, the coupling and mutual feedback mechanism between water and vegetation distribution is complex, and it has not been fully addressed. Taking an arid region of Northwest China as a
Xing Li, Yong Wang, Yong Zhao, Long Yan, Fan He, Jiaqi Zhai, Jiaxin Li, Yuan Liu, Kuan Liu, Yajie Hu, Zhu Wang, Minjian Chen   +11 more
wiley   +1 more source