Chinese Academy of Sciences

Design of a Pop-Up Divertor Langmuir Probe System for the HL-3 Tokamak

A novel pop-up divertor Langmuir probe system is developed for measuring the plasma parameters on divertor target plates in HL-3 tokamak. The system enables reliable ejection and retraction in strong magnetic-field environments and adopts a modular design consisting of a probe as...

Analytical Study for Transient Infiltration of Water in Vegetated Landfill Cover under a Time-Varying Rainfall Scenario

Abstract Vegetated landfill covers (VLC) are extensively applied to block rainwater infiltration and reduce the leachate generation. However, the associated analytical works remain limited. This study, for the first time to our best knowledge, develops analytical solutions for tr...

Functional niche partitioning influences species turnover across supraglacial microbial communities on the Longxiazai glacier, Tibetan Plateau

Glaciers represent unique ecosystems harboring diverse microbial communities that dominate biomass and drive biogeochemical cycling across supraglacial habitats. These microbes transform deposited modern and ancient carbon/nitrogen, and these elements are subsequently transferred...

Supramolecular immunomodulatory hydrogelator potentiates CAR-T therapy with long-lasting endogenous immunity toward solid tumor eradication

The success of chimeric antigen receptor (CAR)-T cell therapy in hematologic malignancies has not been translated to solid tumors, primarily due to inadequate T cell infiltration and an immunosuppressive tumor microenvironment that drives T cell exhaustion. To address these chall...

Integration of Multi-Omics Reveals Genomic Features of Chromatin Accessibility in Gardenia jasminoides J.Ellis Leaves

Chromatin accessibility is an important feature of cis-regulatory elements that shapes gene regulation in plants; however, it has been studied less frequently in traditional medicinal plants such as Gardenia jasminoides J.Ellis (G. jasminoides). This study applied Assay for Trans...

Features of Regional Compound Dry‐Hot Events Over the Yangtze River Basin in Warm Season and Related Mechanisms

Abstract Based on daily station observations and ERA5 reanalysis data during warm seasons of 1961–2024, the characteristics of regional compound dry‐hot events (RCDHEs) and associated mechanisms over Yangtze River Basin (YRB) have been systematically explored. Results show more t...

Spatio-Temporal Evolution and Driving Factors of Agricultural Non-Point Source Pollution in the Upper Yangtze River Economic Belt Incorporating Ecological Regulation Functions

Agricultural non-point source pollution (ANPSP) presents a critical threat to water security in the upper reaches of the Yangtze River Economic Belt (UYREB). Traditional export coefficient models (ECMs) often fail to capture the spatially heterogeneous processes of pollutant tran...

Candidate Intermediary Node Deployment Under the Linear Threshold Model: A Branch-and-Benders-Cut Approach

This paper studies candidate intermediary node deployment for influence diffusion under the linear threshold model (LTM). Given fixed diffusion sources, target nodes, and a budget, the decision maker selects candidate intermediary nodes to maximize the expected total weight of ac...

ExMODE: A comprehensive resource for extremophile genomic and functional exploration

ExMODE (https://db.genomics.cn/exmode/) integrates 3518 samples to build a unified extremophile resource, which hosts 1.35 billion habitat-specific non-redundant genes, 5.25 million representative protein structures, 67,026 metagenome-assembled genomes (MAGs), and 164,132 biosynt...

Anionic Bottom-Up Flux Orchestrated via Hard Carbon Surface Chemistry for Stable Sodium-Ion Batteries

Abstract Hard carbon anodes for sodium-ion batteries suffer from unstable solid-electrolyte interphase formation, leading to low initial Coulombic efficiency and poor cycle stability. Herein, we demonstrate a molecular-level surface design that actively orchestrates an anionic bo...

Lakeshore transformation and water color dynamics: A satellite-based 23-year assessment of nine plateau lakes in Yunnan, China

Study region Nine plateau lakes in Yunnan, China. Study focus We developed an extended lakeshore utilization classification framework to categorize lakeshores as natural, agricultural, or artificial using fixed maximum shorelines. We then derived the Forel–Ule Index (FUI) of the...

Assessing Land Cover Change and Forest Sustainability in a World Heritage Context: Evidence from the Okapi Wildlife Reserve

Long-term monitoring of land cover dynamics is essential for evaluating conservation outcomes in World Heritage sites, yet remains challenging in conflict-affected regions with limited field observations. This study aims to reconstruct annual land cover dynamics and assess forest...

Noncollinear kagome magnet driven by giant antisymmetric exchange

Kagome lattices host exotic phenomena such as quantum spin liquids, topological Weyl nodes, and flat bands. The kagome ferromagnet Co3Sn2S2 has been a focus of debate due to conflicting reports on its magnetic character. Here, using weakly perturbative probes—primarily neutron sc...

A Review of Neural Question Generation: Approaches, Challenges, and Future Directions

The goal of question generation is to automatically produce relevant and meaningful questions from diverse inputs such as knowledge bases, natural language texts, and images. With the rapid advancement of neural architectures, neural question generation (NQG) has attracted growin...

Crystallization Manipulation Through Buried Pyridinium‐Induced Tunable Interactions in Perovskite Solar Cells

ABSTRACT The interaction between the hybrid component of self‐assembled monolayers (SAMs) and the perovskite precursor could delay the crystallization process, resulting in high‐quality perovskite film and highly efficient perovskite solar cells (PSCs). However, the intensity of...

A Comparative Study of Machine-Learning Methods for Early Classification from Sparse Astronomical Light Curves

The booming data volume of modern time-domain surveys demands fast, robust early classification of sparsely sampled light curves, as newly discovered transients typically have only a handful of observations. We compare classifiers for extremely sparse light curves (3–30 observati...

Spatiotemporal Variations in Aerosol Optical Depth and Their Relationships with Cloud Properties and Precipitation over Sudan: Insights from Satellite Observations and CMIP6 Model Projections

This study investigates how dust and sulfate aerosols modulate cloud properties and rainfall over Sudan, a key part of the Sahara–Sahel dust belt. Satellite and reanalysis products (MODIS, CHIRPS, MERRA 2, EAC4) are combined with four CMIP6 models to analyze rainy season (JJAS) a...

How Much Water Can Be Seasonally Buffered by China's Largest Floodplain Lake? A Refined Estimate From SWOT

Abstract Poyang Lake, China's largest floodplain lake, plays a crucial role in regional hydrology by seasonally regulating water to mitigate floods and sustain extensive wetland ecosystems. However, complex hydrodynamics and significant spatial hydraulic gradients often invalidat...

Contrasting Terrestrial Moisture Controls on Precipitation and Interannual Variability across the Southern and Northern Tibetan Plateau

The Tibetan Plateau (TP) plays a crucial role in the Asian hydrological cycle, yet the dominant moisture sources and their governing physical processes remain debated. Here, we employ the Eulerian water tracer technique embedded in Community Earth System Model version 1 (CESM1),...

A Change-Point-Based Deformation Grouping Strategy in Long-Term Near-Real-Time Deformation Monitoring

Distributed Scatterer Interferometric Synthetic Aperture Radar (DSInSAR) technology has been widely applied in areas with complex terrain and dense vegetation. However, DSInSAR is computationally intensive and requires considerable processing time. When new observations become av...