Results 31 to 40 of about 3,105,745 (172)

Structural strength analysis and optimization of converter lug based on Kriging model

机车电传动, 2022
The structural analysis of rail transit converters installed under the vehicle often involves time-consuming computer simulations to evaluate the strength of the structure for safety requirements. For typical rail transit converters, each static strength
HE Guanqiang, LIU Yongjiang, LI Hua, CHEN Liming   +3 more
doaj  

Design and optimization of wall-climbing robot impeller by genetic algorithm based on computational fluid dynamics and kriging model

Scientific Reports, 2022
In recent years, wall-climbing robots have begun to replace manual work at heights to reduce economic losses and casualties caused by working at heights. This paper designs a negative pressure adsorption type wall-climbing robot and analyzes the internal
Yi Fang, Shuai Wang, Da Cui, Qiushi Bi, Ruihua Jiang, Chuliang Yan   +5 more
doaj   +1 more source

Reliability and Sensitivity Analysis of Liquid Storage Tank Using Active Learning Kriging

Applied Sciences
This study proposed a Kriging surrogate model incorporating active learning to overcome the high computational costs associated with conducting reliability and sensitivity analyses of industrial liquid storage tank structures. In the proposed method, the
Qingqing Xu, Xue Li, Feng Zhang
doaj   +1 more source

Human pressure, habitat heterogeneity and species traits jointly determine the level of dark diversity in coastal fish communities

Ecography, EarlyView.
Understanding how anthropogenic pressures and environmental gradients shape coastal fish communities is a central question in biogeography and marine conservation. Yet, the set of species expected to occur at a site given ecological conditions but being absent – the so‐called dark diversity – has received far less attention than observed species, even ...
Loïc Sanchez, Jeanne Rolland, Adèle Barroil, Célia Bertrand, Agathe Blandin, Pierre Boissery, Thomas Bockel, Eric Charbonnel, Julie Deter, Régis Hocdé, Florian Holon, Jean‐Baptiste Juhel, Nicolas Loiseau, Bastien Macé, Anthony Maire, Stéphanie Manel, Marie Orblin, Franck Pichot, Jean‐Jacques Riutort, Lola Romant, Rémy Simide, Alice Valentini, Laure Velez, David Mouillot   +23 more
wiley   +1 more source

Evaluation of the performance of remotely sensed rainfall datasets for flood simulation in the transboundary Mono River catchment, Togo and Benin

Journal of Hydrology: Regional Studies, 2021
Study region: This study focused on the Mono River Basin in west Africa. Study focus: The lack of extensive and functional measurement networks for flood monitoring, introduces satellite-based rainfall datasets as an alternative which needs however to be
Nina Rholan Hounguè, Kingsley Nnaemeka Ogbu, Adrian Delos Santos Almoradie, Mariele Evers   +3 more
doaj   +1 more source

Beyond Prediction: Data, Baselines, Explanation, and Causation in Machine Learning for Food Insecurity

Food Safety and Health, EarlyView.
The gains from machine learning in nowcasting and forecasting food insecurity are still small and limited and cannot be observed in all countries. This review summarizes the public resources for data, corrects common misconceptions about model requirements, and establishes baseline requirements, explanations, causal inference, and equity in operational
Shabnam Mehboob, Azman Abdullah, Gunesh Kumar, Samreen Memon, Naila Afghan   +4 more
wiley   +1 more source

Balancing Productivity, Ecology, and Social Well‐Being: Insights From Three Decades of Farmland Transformation in China

Land Degradation &Development, EarlyView.
ABSTRACT Balancing food security, social equity, and ecological sustainability remains a persistent challenge in global agricultural systems. While economic and ecological aspects of land‐use transitions have been extensively studied, the long‐term dynamics of social functions and their interactions with other functions are less understood.
Zhiyuan Zhu, Yongzhong Feng
wiley   +1 more source

Functional data-based estimation of coastal erosion and accretion at Playa Salguero using J-Net Dynamic

Science of Remote Sensing
Coastal erosion is a critical environmental and management issue along the Colombian Caribbean, where nearly half of the shoreline presents erosive trends.
J.M. Ramírez Sánchez, F.L. Hernández Torres, S. Zollini   +2 more
doaj   +1 more source

Satellite-derived plant cover maps vary in performance depending on version and product

Ecological Indicators, 2023
Understanding the accuracy and appropriate application scale of satellite-derived maps of vegetation cover is essential for effective management of the vast, remote rangelands of the world.
Cara Applestein, Matthew J Germino
doaj   +1 more source

Further development of adaptive parameter tuning in the numerical weather prediction models of Deutscher Wetterdienst

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The introduction of adaptive parameter tuning in the numerical weather prediction models of DWD in 2022 substantially improved the forecast quality of near‐surface variables like 2‐m temperature and 2‐m humidity. Since 2023, refinements and extensions, primarily affecting the surface evaporation and its diurnal cycle, have led to further advances ...
Günther Zängl
wiley   +1 more source