University of Chinese Academy of Sciences

A Time-of-Flight Neutron Backscattering Spectrometer at the China Spallation Neutron Source: Principle, Design, and Its Prospects

The quasielastic neutron scattering technique is an indispensable tool for probing microscopic dynamics in condensed matter at the nanoscale. However, the lack of a high-resolution spectrometer has restricted comprehensive studies of dynamics in China. To address this gap, a new...

Meta‐Learning‐Enhanced Implicit Full Waveform Inversion

ABSTRACT Implicit full waveform inversion (IFWI) introduces implicit neural representations to parameterize the subsurface velocity model as a continuous function of spatial coordinates, which alleviates the dependence on the initial model and improves inversion flexibility. Howe...

Genomic predisposition is associated with the direction of sex chromosome evolution

Sex chromosome evolution is among the most dynamic genomic innovations in vertebrates, yet why some lineages evolve XY while others evolve ZW remains unclear. Using chromosome-level genomes from 19 geckos, we found that gecko sex chromosomes originated independently from 16 ances...

How Norms Depend on the Presence and Status of Observers: The Relational Contingency of Everyday Behaviors in 90 Societies

Norms are fundamental to social life, but basic questions about how they are affected by social context remain. Specifically, how do normative constraints depend on the presence and status of observers, and how do such relational contingencies vary across cultures? Using data fro...

Complete genome-derived metabolic interactions reveal the impact of gut ecology on human health

Abstract Metabolic interactions govern gut microbiome assembly, yet functional rules remain obscured by genomic incompleteness and fragmentation. Here, we leverage 1,150 complete genomes to construct genome-scale metabolic models, demonstrating that draft genomes introduce system...

Ultralow‐Dose Direct Photopatterning of Metal–Organic Frameworks for Scalable Device Integration

ABSTRACT The integration of metal–organic frameworks (MOFs) into microelectronic and optoelectronic devices requires patterning strategies that combine high sensitivity, structural preservation, and compatibility with scalable fabrication. Direct optical patterning offers a photo...

PRISM: Feature-Guided Hierarchical Inpainting for Dual-Band Infrared Defective Pixel Clusters

This paper presents a feature-level defective pixel cluster (DPC) correction method specifically designed for dual-band infrared detectors. Due to inherent manufacturing limitations, antimonide-based type-II superlattice (T2SL) focal plane arrays (FPAs) commonly suffer from DPC i...

Direct evaporation of single-crystal metal contacts for 2D semiconductors

Metal contacts remain one of the key bottlenecks in two-dimensional (2D) semiconductor electronics. We developed an atomic-scale step-by-step evaporation method to directly grow single-crystal metals on monolayer semiconductors with clean interfaces. This method accesses a distin...

The 2024 cascading glacial lake outburst flood in the Thame Valley of Everest region, Nepal: process, impacts and implications

Abstract. On the afternoon of 16 August 2024, a catastrophic flood devastated Thame Village in the Everest region of Nepal. This event resulted from a cascading glacial lake outburst flood (GLOF), where the outburst of an upstream glacial lake triggered the failure of a downstrea...

Anisotropy of Satellite Galaxies. I. Contrasting Correlations with Central Galaxy, Host Halo, and Large-scale Filament Structures

Abstract Using the SIMBA, EAGLE, and IllustrisTNG-100 galaxy formation simulations, we examine the anisotropy of the satellite distribution and its dependencies on central galaxies, host halos, and cosmic filaments. We find that in all simulations, the satellite anisotropy is rob...

Unveiling the nexus between products and influential countries in the multi-layer trade network of global lithium battery

Amid the accelerating global transition to renewable energy and the surge in electric vehicle adoption, ensuring the stability of the lithium battery supply chain has become a critical priority. This study explores the complex relationships between products and influential countr...

On the simplicity of de Sitter correlators

A bstract Motivated by recent evidence that equal-time correlators can be simpler than the corresponding wavefunction coefficients, we study de Sitter correlators in conformally coupled ϕ 3 theory directly. By inverting the momentum-space dressing rules, we derive a time integral...

Seasonal plant-microbial coupling regulates carbon transformation pathways and soil organic carbon persistence in alpine grasslands

To elucidate the seasonal mechanisms underlying soil carbon cycling in alpine grasslands, we collected soil profile samples (0–50 cm) from the Qinghai-Tibet Plateau (QTP) in May, August, and November. Amino sugars and lignin phenols were used as molecular markers of microbial-der...

Declining hydraulic safety in a drier world

Forests worldwide are increasingly exposed to soil drought under climate change, with their fates depending on the ability to maintain essential functions like water transport (hydraulics) and photosynthesis. Acclimation is expected to mitigate drought impacts, but the extent to...

AMOC Weakening Controls δ 18 O but Not Rainfall in North China During Deglacial Abrupt Events

Abstract East Asian Summer Monsoon (EASM) varied at orbital and millennial timescales during the Last Deglaciation (∼20–11 ka). The uniform δ 18 O response in East China is often linked to EASM circulation that drives a precipitation dipole in North and South China on orbital sca...

Does Digitalization Widen Labor Income Inequality?

ABSTRACT We develop a growth model that endogenizes the occupational choice of workers with different ability levels to study how digitalization affects labor income inequality. The framework incorporates digitalization's multifaceted effects on the economy: (i) it influences eco...

Multi-omics profiling of migraine links plasma proteomic signatures with lipid metabolomic measures

Migraine is a highly prevalent neurological disorder with incompletely understood molecular mechanisms. We aimed to identify migraine-associated plasma proteins and lipid metabolomic measures and to investigate their relationships through an integrated multi-omics framework. This...

Torsional wake stiffness and the dynamic response of tethered tandem cylinders in the subcritical and critical regimes

This study experimentally investigates the stationary and dynamic characteristics of a tandem cylinder configuration in which the downstream cylinder is confined to rotate about a pivot point centered at a fixed upstream cylinder with a specified cylinder-to-cylinder spacing. Res...

A Bioinspired Antifreezing Electrolyte Enabling Stable and Low‐Temperature Fluoride‐Ion Batteries via Hydrogen‐Bond Reconfiguration

ABSTRACT Fluoride‐ion batteries (FIBs) are appealing for their high theoretical energy density and low cost, wherein aqueous electrolytes provide the exceptionally high fluoride‐salt solubility and fast ion transport. However, the strong H 2 O−H 2 O hydrogen‐bond network promotes...

Highly Stable CO 2 Methanation Catalyst Fabricated by Engineering Metal–Metal Oxide Interfaces of CoAlO x

ABSTRACT Preparation of a heterogeneous catalyst with ultra‐high catalytic stability and target product selectivity of > 99% at near thermodynamic equilibrium conversion is the ultimate goal to pursue in the catalysis field. Here, a CoAlO x catalyst is constructed for CO 2 methan...