Results 51 to 60 of about 6,450 (280)

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

Advanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai, Barak Ratzker, Pasquale Cavaliere, Dierk Raabe   +3 more
wiley   +1 more source

Baseline Low-Density-Lipoprotein Cholesterol Modifies the Risk of All-Cause Death Associated With Elevated Lipoprotein(a) in Coronary Artery Disease Patients

Frontiers in Cardiovascular Medicine, 2022
Background: The prognostic value of elevated lipoprotein(a) [Lp(a)] in coronary artery disease (CAD) patients is inconsistent in previous studies, and whether such value changes at different low-density-lipoprotein cholesterol (LDL-C) levels is unclear ...
Younan Yao, Younan Yao, Jin Liu, Jin Liu, Bo Wang, Bo Wang, Ziyou Zhou, Xiaozhao Lu, Zhidong Huang, Zhidong Huang, Jingru Deng, Jingru Deng, Yongquan Yang, Yongquan Yang, Ning Tan, Ning Tan, Ning Tan, Ning Tan, Shiqun Chen, Shiqun Chen, Shiqun Chen, Shiqun Chen, Jiyan Chen, Jiyan Chen, Jiyan Chen, Jiyan Chen, Yong Liu, Yong Liu, Yong Liu, Yong Liu   +29 more
doaj   +1 more source

Crop Insurance Design and On‐Farm Risk Adaptation

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The United States spends billions annually on crop insurance premium subsidies, yet the prevailing distance‐based guarantee design unintentionally rewards risk‐taking by linking subsidies to yield variability. We consider a simple redesign: define guarantees in terms of probability so that coverage reflects a consistent likelihood of indemnity.
Gerald Van Tassell, Alan P. Ker
wiley   +1 more source

Retinal Vessel Segmentation: A Comprehensive Review From Classical Methods to Deep Learning Advances (1982–2025)

Advanced Intelligent Systems, EarlyView.
Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal, Jan Kubíček, Jana Bahrová, Alice Varyšová, Martin Augustýnek, Marek Penhaker, Juraj Timkovič   +6 more
wiley   +1 more source

Mixed Spline Smoothing and Kernel Estimator in Biresponse Nonparametric Regression

International Journal of Mathematics and Mathematical Sciences, 2021
Mixed estimators in nonparametric regression have been developed in models with one response. The biresponse cases with different patterns among predictor variables that tend to be mixed estimators are often encountered.
Dyah P. Rahmawati, I. N. Budiantara, Dedy D. Prastyo, Made A. D. Octavanny   +3 more
doaj   +1 more source

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

The Estimating Parameter and Number of Knots for Nonparametric Regression Methods in Modelling Time Series Data

Modelling
This research aims to explore and compare several nonparametric regression techniques, including smoothing splines, natural cubic splines, B-splines, and penalized spline methods.
Autcha Araveeporn
doaj   +1 more source

Pemetaan Kemiskinan di Kabupaten Mukomuko Menggunakan Small Area Estimation Dengan Pendekatan Regresi Penalized Spline

Jurnal Matematika Integratif, 2017
Penelitian ini bertujuan untuk melakukan pemetaan kemiskinan di Kabupaten Mukomuko Provinsi Bengkulu. Metode yang digunakan dalam penelitian ini adalah Small Area Estimation (SAE) dengan pendekatan regresi Penalized Spline (P-Spline).
Idhia Sriliana, Dian Agustina, Etis Sunandi   +2 more
doaj   +1 more source

PEMODELAN DATA TIME SERIES DENGAN PENALIZED SPLINE FILTER [PDF]

, 2014
Regresi nonparametrik adalah suatu pendekatan regresi untuk pola data yang tidak diketahui bentuk kurva regresinya. Data time series merupakan data yang memperkirakan besarnya atau jumlah sesuatu pada waktu yang akan datang berdasarkan data masa lampau ...
Wuleng, A.T.
core  

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

American Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen, Wei Zhang, Julian M. Alston   +2 more
wiley   +1 more source