Chen Zhang

Image quality evaluation and tolerance analysis method for optical-digital imaging systems

junming Chen, mao xianglong, Boyu Mao, Peipei Cai et autres

Optical-digital joint optimization transforms the imaging paradigm from a purely optical system to an integrated framework combining an optical system with image processing algorithms, thereby significantly simplifying system architecture or enhancing system performance. In recent years, this approach has attracted increasing attention …

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In-season crop yield prediction: State of the art and future research direction

Ziao Liu, Liping Di, Ruixin Yang, Liying Guo et autres

• Systematic review of 55 studies (2014–2025) on in-season crop yield prediction. • Compared machine learning, process-based, and statistical models across scales. • Identified Random Forest, CNN, and LSTM as the most commonly used methods. • Reviewed key inputs including NDVI, EVI, …

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manuscript_raw_data

Chen Zhang

A nine-year nitrogen addition experiment in a poplar plantation reveals a critical hidden risk: N deposition destabilizes subsurface (10–20 cm) soil carbon by shifting it from stable mineral-associated (MAOC) to vulnerable particulate (POC) forms. This repartitioning is driven by stoichiometric imbalances that …

MCTS Based on p-rollout for Autonomous Task Scheduling of Earth Observation Satellites

Xiao Wang, Lishuo Wang, Chen Zhang, Hao Zhang et autres

cn (code pays fourni par la source)

manuscript_raw_data

Chen Zhang

A nine-year nitrogen addition experiment in a poplar plantation reveals a critical hidden risk: N deposition destabilizes subsurface (10–20 cm) soil carbon by shifting it from stable mineral-associated (MAOC) to vulnerable particulate (POC) forms. This repartitioning is driven by stoichiometric imbalances that …

Application of SAMMY for Non-Destructive Characterization of Irradiated Samples Using Neutron Transmission Measurements at VENUS

USDOE Office of Science (SC), Luiz Leal, Chen Zhang, Lukas Zavorka et autres

This report presents the application of SAMMY (Larson 2008), an R-matrix Bayesian fitting system, for analyzing neutron transmission data to enable non-destructive isotopic identification. Transmission measurements were conducted at the VENUS (Bilheux et al. 2023) beamline of the Spallation Neutron Source (SNS) …

us (code pays fourni par la source)