University of Chinese Academy of Sciences

Offensive unpredictability and defensive tracking in intergroup conflict show sex-differentiated patterns

Intergroup conflict poses asymmetric strategic demands: acquiring resources through offense benefits from behavior that opponents cannot easily anticipate, whereas protecting resources through defense requires monitoring opponents and adjusting to threats. Analyzing behavioral da...

Molecular evolution of oxygenated organic molecules in a cloud-influenced forested mountain environment

Abstract. Atmospheric oxygenated organic molecules (OOMs) link the oxidation of volatile organic compound to secondary organic aerosol formation, yet their molecular evolution in cloud-influenced forested mountain environments remains poorly constrained. Here, gas-phase OOMs were...

Transient Hydrogen-Manipulated Nonequilibrium Kinetics of Abnormal Grain Growth for Single-Crystal Copper Foils

Abstract Single-crystal copper foil is a distinguished material for electrical transmission, thermal conduction, and two-dimensional material epitaxy. However, the speed of producing a large-area single-crystal copper foil by annealing polycrystalline copper is limited by slow nu...

The Influence Law and Etching Verification of Sub-Wavelength Longitudinal Field Generation

The generation of sub-diffraction-limit focal spots is essential for nanoscale manufacturing, and tight focusing of radially polarized beams provides a promising route to achieve this goal through the longitudinal field. This work proposes an annular-modulation-enhanced focusing...

Pd-Catalyzed Freon-Enabled Aminocarbonylation of Aryl Iodides

Abstract A palladium-catalyzed Freon-to-carbonyl transfer strategy has been developed for the CO-free aminocarbonylation of aryl and heteroaryl iodides with amines. Using chlorodifluoromethane (Freon-22) as both a difluorocarbene precursor and a carbonyl source, this protocol ena...

A generalized Gurson model for loaded ‘voids’

Abstract The Gurson model successfully solves the problem of void damage within a finite homogeneous matrix. Yet, it is inherently incapable of describing scenarios where the matrix contains inclusions that may trigger the void formation. In this work, we generalize the Gurson mo...

Development and Application of a High-Resolution Cryogenic STXM System at the Shanghai Synchrotron Radiation Facility

Abstract Scanning transmission X-ray microscopy (STXM) is an advanced technique for label-free chemical imaging with nanometer-scale spatial resolution which is well suited to studies of complex and heterogeneous materials. For biological and other radiation-sensitive specimens,...

Practical distributed 3D hydro-acoustic localization technology for spatially heterogeneous response cables with adaptive multi-array fusion

Distributed optical fiber hydro-acoustic localization holds significant importance in underwater object detection, maritime security, and marine ecology monitoring. To address the practical challenge of spatial heterogeneity response of acoustic sensitive optical cable (ASOC), a...

Position of the Lhasa Terrane and Two‐Stage Crustal Shortening During the India–Asia Collision

Abstract The paleolatitudinal change of the Lhasa Terrane is critical for estimating the timing of the India–Asia collision and associated syn‐to post‐collisional crustal shortening, but its paleoposition is highly debated. Here we present integrated geochronologic and paleomagne...

A Transferable Descriptor for Accurate Prediction of Excitonic Couplings in A-D-A Organic Photovoltaic Acceptors

Abstract Exciton diffusion length (LD) is a key parameter determining the power conversion efficiency of organic solar cells (OSCs), yet its fast and accurate calculation is computationally challenging due to thin-film structural disorder and the long-range nature of excitonic co...

Enhancing the advection module performance in the EPICC-Model V1.6.0 via GPU-HADVPPM4HIP V1.0 coupling and GPU-optimized strategies

Abstract. The rapid development of Graphics Processing Units (GPUs) has established new computational paradigms for enhancing air quality modeling efficiency. In this study, the heterogeneous-compute interface for portability (HIP) was implemented to parallel computing of the pie...

Non-monotonic response of net dust deposition kinetics to low wind speeds

Abstract. Dry deposition is a major sink for mineral dust, yet its behavior under weak winds remains poorly constrained and is often parameterized monotonically with wind speed. Here we quantify size-resolved dust deposition kinetics in a large closed-circuit recirculating wind t...

High‐Resolution Temperature and Precipitation Variability in Northeast Asia Since the Last Glacial Maximum Recorded in an Annually Laminated Maar Lake

Abstract Temperature and precipitation variability in monsoonal Asia is central to understanding regional climate dynamics and global teleconnections. How post‐LGM warming and hydroclimate change unfolded in Northeast Asia, and how they were linked to external forcing, remain poo...

Directional Nanoparticle Migration Driven by Mobility Gradient in Glassy Polymers

Abstract How to precisely control the distribution of nanoparticles in a polymer matrix is a long-standing issue in polymer nanocomposites. In this work, we introduce a simple yet effective methodology to generate surface concentration gradients of nanoparticles in polymer films....

Structure‐Property Engineering in Ag 23 Nanoclusters for Electrocatalytic Nitrate Reduction

ABSTRACT Electrocatalytic nitrate reduction reaction (NO 3 RR) provides a sustainable pathway for ambient ammonia synthesis; however, achieving concurrent high activity, high selectivity and appropriate stability of catalysts remains a substantial challenge. Here we report the sy...

Short-Term Simulated NH4+/NO3− Inputs Reorganize Soil Microbial Communities and Modify N-Cycling Functional Potential in Temperate Forests

Forest soil nitrogen (N) turnover and nitrous oxide (N2O) release are strongly influenced by atmospheric N deposition. Although the effects of individual inorganic N species on soil biogeochemistry are well documented, the consequences of changing their relative supply for N2O fo...

Enhanced electrochemically-directed oligonucleotide synthesis via porous silica thin-film for DNA data storage

DNA-based data storage has emerged as a promising alternative for long-term information archiving and its implementation accelerates the development for on-chip large scale oligonucleotide synthesis. Among various technological routes, electrochemically directed synthesis offers...

Broadband and Athermal Infrared Engineering: A Minimalist Meta‐Composite Optical Architecture for a 100°C Temperature Span

ABSTRACT Hybrid meta‐refractive systems offer a viable pathway to overcome the multi‐dimensional performance trade‐offs of metalenses. However, conventional spatial‐stacking designs struggle to simultaneously achieve minimalism and athermalization. Here, a minimalist meta‐composi...

Holographic multipartite entanglement dynamics in AdS3-Vaidya

A bstract We study how multipartite entanglement is dynamically reorganized during holographic thermalization following a global quench in AdS 3 /CFT 2 . We first use the n -partite information (− 1) n I n to probe collective multipartite entanglement in holographic configuration...

Repeatable Velocity Fine Structure of Lightning K‐Leaders From a Single VHF Interferometer Made Three‐Dimensional

Abstract K‐processes re‐illuminate lightning channels at speeds of order 10 7 m s −1 , but measuring their three‐dimensional (3‐D) propagation velocity has required multi‐station systems available at few sites. An error‐isomorphism range inversion upgrades a single very‐high‐freq...