University of Chinese Academy of Sciences

Reconfigurable Terahertz Multi‐Harmonic Dual‐Combs

ABSTRACT Dual‐comb spectroscopy, constructed from two frequency combs with slightly different repetition frequencies, enables real‐time and high‐precision measurements without mechanical scanning. In the terahertz (THz) spectral range, dual‐comb techniques provide a powerful tool...

Optimal standardized ileal digestible lysine levels in low-protein diets: Effects on performance of lactating sows and their offspring.

> 0.05). A nonlinear fitting of sensitive indicators with linear and quadratic effects was conducted to estimate optimal SID Lys requirements for lactating sow. Breakpoints for 14 d SUN, maximizing piglet benefits (weaning litter weight and individual weight), and sow BW loss wer...

Irrigation Regimes Shape Vertical Salt Distribution in Coastal Saline–Alkali Farmlands: A PLS-SEM Analysis of Direct Ion Input and Physicochemical Pathways

Soil salinization constrains agricultural sustainability in coastal low plain regions, yet the mechanisms regulating salt spatial heterogeneity under different water management regimes remain unclear. This study investigated soil soluble ion distribution and influencing factors a...

Accelerating Materials Discovery: A Review of Machine Learning in X‐Ray Absorption Spectroscopy

X‐ray absorption spectroscopy (XAS) is a critical technique for probing the local structural and electronic properties of materials. Advanced synchrotron radiation facilities generate complex, high‐dimensional spectra, which pose significant challenges for traditional analysis me...

Controlling the Dynamic Conversion Process of the Water Molecules on the Electrolyte Interface for Producing Free Water

ABSTRACT Proton exchange membrane water electrolysis (PEMWE) is a highly promising green hydrogen production method and technology, and it is also one of the important means for scientists and engineers to achieve carbon reduction, carbon emission, and carbon neutrality. Years of...

Topographic decoupling of tree-mortality disturbances drives contrasting soil carbon fates via divergent microbial strategies

Climate change is exacerbating tree mortality worldwide, threatening the stability of forest soil organic carbon (SOC) stocks. However, how SOC responds to tree mortality amid co-occurring disturbances remains mechanistically unresolved. Here, we demonstrate that topography spati...

CDSB: accelerating connectomics workflow via Content-Decoupled Schrödinger Bridge

Abstract Background Large-scale connectomics requires the nanometer-scale resolution of electron microscopy to resolve ultrastructural details, but its acquisition is time- and labor-intensive. In contrast, high-throughput light microscopy offers high throughput but lacks the spa...

Sustained algal-bacterial interactions promote accumulation of recalcitrant particulate carbon with accelerated radiocarbon aging signatures

Algal-bacterial interactions regulate the production and fate of marine particulate organic carbon (POC), yet their capacity to generate long-lived carbon sinks remains unclear. Using a two-year, nutrient-self-sustaining co-culture of Synechococcus and its mutualistic microbiota,...

Atomic‐Scale Mechanisms of Anisotropic Thermal Decomposition in GeSn Alloys With Stepwise Pinning

ABSTRACT Thermal decomposition of GeSn layers detrimentally affects device performance, while the governing mechanisms remain shrouded by the presence of SiO 2 passivation. In this work, we elucidate the atomic‐scale decomposition of GeSn during thermal degradation using in situ...

Nigral DJ-1 gene knockout in tree shrews can induce phosphorylated α-synuclein aggregation and all key phenotypes of Parkinson’s disease

Abstract DJ-1 is a genetic factor associated with Parkinson’s disease (PD), and altered DJ-1 function has been implicated in PD pathogenesis. However, DJ-1 knockout mice fail to reproduce robust PD-like phenotypes or neuropathology, leaving the contribution of DJ-1 deficiency to...

Balancing Carrier Cooling in InN/GaN Quantum Wells via Point Defect Engineering

ABSTRACT Hot‐carrier cooling asymmetry is a fundamental bottleneck in polar III‐nitride quantum wells, driving electron leakage and limiting radiative efficiency in light‐emitting devices (LEDs). Here we uncover a defect‐enabled strategy to symmetrize carrier relaxation in InN/Ga...

Six-fold reduction in ocean heat content estimate uncertainty since 1960

Abstract Ocean heat content (OHC) dominates Earth’s energy imbalance, but its uncertainty has not been fully understood. Here, we construct a Large-Ensemble to comprehensively quantify the OHC uncertainty from global to regional scales since 1955, and consider eight groups of err...

Exploring digital finance and decarbonisation nexus: new insight from green innovation inequality in China

The emergence of digital finance (DF) has fundamentally transformed traditional financial models, paving the way for new opportunities to advance economic decarbonisation. However, how DF influences decarbonisation remains a subject of debate, and existing research has largely ne...

Identification and characterization of ethR and ethA genes impacting the sensitivity of Mycobacterium abscessus to ethionamide

ABSTRACT Mycobacterium abscessus is a rapidly growing non-tuberculous mycobacterium with rising global incidence. This pathogen exhibits intrinsic resistance to most antibiotics, presenting a major public health threat. Ethionamide (ETH) requires bioactivation by monooxygenase Et...

Cryo-EM structures of Cdr1 reveal snapshots of substrate transport and diverse inhibitor recognition

In Candida albicans —a World Health Organization fungal priority pathogen—overexpression of the adenosine triphosphate (ATP)–binding cassette transporter Cdr1 drives multidrug resistance. We present seven cryo–electron microscopy structures capturing substrate entry and expulsion...

Application and prospect of artificial intelligence in biochar for acidic soil amelioration

Abstract Effective amelioration of acidic soils with biochar is critical for mitigating soil degradation and promoting sustainable agriculture, yet this requires robust mechanistic understanding and predictive modeling. This review synthesizes the key biogeochemical pathways by w...

Statistics-enhanced cross-domain perception network for spaceborne infrared tiny ship detection

Spaceborne thermal infrared remote sensing is indispensable for maritime surveillance and ship management, yet detecting tiny ships in infrared imagery remains challenging due to small object sizes, weak textures, and strong structured clutter. To address these challenges, we pro...

High‐Efficiency Acousto‐Optic Modulation on Non‐Suspended Thin‐Film Lithium Tantalate

ABSTRACT Acousto‐optic (AO) interactions provide a powerful interface between the microwave and optical domains, enabling optical switching, non‐reciprocal propagation, and efficient microwave‐to‐optical transduction. Here, we demonstrate high‐efficiency AO modulation on a non‐su...

In-orbit test of the weak equivalence principle with atom interferometry

The weak equivalence principle (WEP) is a central pillar of general relativity. Its precise test with quantum systems in space offers a unique window onto new physics. Here, we report an in-orbit quantum test of the WEP. A dual-species ( 85 Rb/ 87 Rb) atom interferometer is reali...

Elastic Liquid Metal Foam for Self‐Powered Triboelectric Sensing and Intelligent Tactile Recognition

ABSTRACT With the rapid expansion of the Internet of Things (IoT) and artificial intelligence (AI), developing flexible self‐powered electronic skins with high sensitivity and mechanical robustness has become a critical research priority. However, traditional metal‐polymer compos...