Information on mangrove species composition and distribution is key to studying functions of ecosystems securing sustainable conservation. Even though remote sensing technology developing rapidly currently, mapping forests at the level based freely accessible images still a great challenge. This study built Sentinel-2 normalized difference vegetation index (NDVI) time series (from 2017-01-01 2018-12-31) represent phenological trajectories then demonstrated feasibility phenology-based...

Abstract The fabrication of discrete nanostructures with both plasmonic circular dichroism (PCD) and chiral features is still a challenge. Here, gold nanoarrows (GNAs) chiroptical responses morphologies are achieved by using L‐selenocystine (L‐SeCys 2 ) as inducer. While L‐SeCys generates GNAs weak PCD signal, the irradiated (irr‐L‐SeCys leads to featured helical grooves (HeliGNAs) accompanying strong signal. It revealed that when photo‐irradiated, emergence selenyl radicals plays an...

The additive manufacturing of high-γ′ precipitation-rate superalloys presents both benefits and challenges. For the fabrication dense crack-free K417G superalloy, this study utilized laser metal deposition (LMD) in conjunction with induction heating, conducting a comprehensive experimental exploration. findings demonstrate that medium energy density promotes densification. microstructure deposited includes γ matrix, γ′ precipitation, MC carbides, γ/γ′ eutectic. cracking mechanism during LMD...

A disordered porous structure with nanoclusters on nickel superalloy is created using femtosecond laser ablation, optimized parameters for antireflection in the midinfrared range. Horizontal line scanning at 10 μm spacing and 50 mm s −1 speed yields best performance 0.041% reflectance. The structure's large‐scale span high porosity aid wave absorption. Micron‐scale protrusions enhance reflection, nanostructure density impacting single reflection rates. Micron structures primarily drive...

Mangrove forest (MF) extents and distributions are fundamental for conservation restoration efforts. According to previous studies, both the commercial Gaofen-2 (GF-2) imagery (0.8 m spatial resolution 4 spectral bands) freely accessed Sentinel-2 (S2) (10 13 have been successfully used map MFs. However, efficiency accuracy of MF mapping based on these two data is not clear, especially large-scale applications. To address this issue, first, we developed a robust classification approach by...

Change detection (CD) in remote sensing images is a critical task that has achieved significant success by deep learning. Current networks often employ pixel-based differencing, proportion, classification-based, or feature concatenation methods to represent changes of interest. However, these fail effectively detect the desired changes, as they are highly sensitive factors such atmospheric conditions, lighting variations, and phenological resulting errors. Inspired Transformer structure, we...

Mangroves are a key type of protected coastal wetland, with range benefits such as protection from wave damage, sand fixation, water purification and ecological tourism. As the academic knowledge mangroves has gradually increased, use remote sensing to monitor their dynamic changes in China become hot topic discussion received attention circles. Remote also provided necessary auxiliary decision-making suggestions data support for scientific rational conservation, restoration management...

Near-surface air temperature (NSAT) plays an important role in land surface and atmosphere interactions. It is widely used many fields, such as hydrology, climatology, environment. Although remote sensing-based approaches for NSAT estimation have been proposed by the scientific communities, of them are limited cloudy areas and, thus, not able to provide all-weather estimates. To satisfy NSAT-related applications conditions over Tibetan Plateau (TP), this study develops a novel model...

CdSe/ZnS quantum dots with circularly polarized luminescence in a nucleotide–amino acid hydrogel.

The lanthanide contraction involves a reduction in atomic radius among f-block elements below the expected level. A similar is observed group-16 elements. of Se (117 pm) slightly larger than that S (104 arising from presence d electrons, compared to significant increase O (73 S. This lanthanide-like contributes Se's robust oxidative resistance. Here we report selective oxidation strategy utilizing strong antioxidative property remove coexisting narrow-band gap Te impurities feedstocks....

Counterfactual reasoning ability is one of the core abilities human intelligence. This process involves processing alternatives to observed states or past events, and this can improve our for planning decision-making. In work, we focus on benchmarking counterfactual multimodal large language models. We take question answer pairs from VQAv2 dataset add presupposition questions, with being modified accordingly. After generating questions answers using ChatGPT, manually examine all generated...

It is important to understand urban auto markets from a spatial perspective. Specifically, the question of how simplify and visualize relatedness complicated arises. Based on concept ‘product space’, this research explores similarity between Chinese cities identifies city clusters using data automobile sales in 2012. A city’s market shared by different manufacturers proximity two evaluated based or structure markets. The structures ‘city clusters’ derived proximities among are mapped,...

With the gradual development and application of new energy sources, establishment power plants challenges spatiotemporal data monitoring sources. Due to inability obtain accurate data, there are still big problems in prediction generation. aid artificial intelligence for intelligent monitoring, this paper finds out abnormal points from real-time space time, automatic correction, it then improves structure.

The pursuit of high-quality remote sensing images never ceases. In the field image processing, addressing denoising and deblurring is paramount importance. To reconstruct original from degraded ones, we propose adaptive fourth-order partial differential equation (PDE) models for denoising–deblurring based on a variational framework. proposed PDE include second-order, third-order, terms. fully utilize advantages second-order third-order terms in preserving boundaries term avoiding stair-step...

The additive manufacturing of high-γ′ precipitation-rate superalloys presents both benefits and challenges. For the fabrication dense crack-free K417G superalloy, this study utilized laser metal deposition (LMD) in conjunction with induction heating, conducting a comprehensive experimental exploration. findings demonstrate that medium energy density promotes densification. microstructure deposited includes γ matrix, γ′ precipitation, MC carbides, γ/γ′ eutectic. cracking mechanism during LMD...