University of Chinese Academy of Sciences

Deformable Sparse-Gradient Regularization for Extreme Image Denoising

Extreme noise severely degrades image quality in photon-limited imaging systems and challenges existing denoising methods. Classical total variation (TV) models rely on fixed local gradients and often introduce cross-edge smoothing, while deep learning methods may become unstable...

A Microseismic Energy Field Distribution Prediction Method Guided by Geological Structure Priors

Existing microseismic prediction methods commonly incorporate domain prior knowledge as ordinary input features, which makes it difficult to fully exploit its structural constraints and physical implications. To address this limitation, this study proposes a geological-structure-...

CDGP-Net: Channel-Decoupling and Geographic-Prior Fusion for Spatial Super-Resolution of HIRAS Radiances with Co-Platform MERSI-II

Hyperspectral infrared sounders provide valuable observations for numerical weather prediction (NWP), but their native nadir spatial resolution of approximately 12–16 km is coarser than the approximately 4 km grid spacing commonly used in convection-permitting regional forecastin...

Temperature‐Regulated Dynamic Phase Reconfiguration of Solid‐Liquid Biphasic Ga‐In Nanoparticles

ABSTRACT Phase evolution in liquid metals (LMs) is fundamental to the structural integrity and electrical reliability of LM‐based flexible conductive materials. Physical vapor deposition (PVD) is an important method for preparing LM films. However, their phase evolution during de...

Digital twin for city traffic emissions using deep vision and real time monitoring

Urban on-road air pollution remains a pervasive threat to public health, yet its management is fundamentally constrained by a lack of spatiotemporal precision in emission inventories. Conventional inventories rely on static, registration-based proxies that fail to capture the hig...

Garnet‐Induced Amorphization of Fluoride Solid Electrolyte Interlayer Enables High‐Voltage and Large‐Capacity Lithium Metal Solid‐State Batteries

ABSTRACT Garnet‐type solid‐state electrolyte Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 (LLZTO) has garnered significant attention owing to its high Li‐ion conductivity at room temperature (RT) and good electrochemical stability with Li metal. However, it presents the challenges in terms of...

MedKGent: a large language model agent framework for constructing temporally evolving medical knowledge graph

The rapid expansion of medical literature challenges the scalable structuring of domain knowledge. Knowledge Graphs (KGs) offer a solution, yet current construction methods lack generalizability and ignore the temporal dynamics of evolving knowledge. To address this, we introduce...

Enhanced Recoveryof Strategic Metal Antimony fromWastewater via a Synergistic UV/Iodide/Sulfite Process

Abstract Antimony-bearing wastewater poses substantial environmental risks, while conventional treatment technologies mainly transfer dissolved antimony into secondary hazardous wastes. Here, we developed a synergistic UV/iodide/sulfite process for the rapid reductive recovery of...

Effects of rainfall on permafrost degradation in alpine desert regions of the Tibetan Plateau

Rainfall is increasing across the Tibetan Plateau, yet its effects on permafrost in alpine desert regions remain poorly understood. Using a validated one-dimensional land-surface model for a representative site, we conducted idealized experiments to isolate the effects of summer...

The pivotal role of the food service industry in alleviating urban segregation and boosting city vitality

Abstract Urban segregation challenges the sustainable and inclusive development of cities, yet little is known about how to address it effectively. This study examines how restaurants in Chengdu, China, a city renowned for its vibrant food culture, shape social interactions in da...

Topologically Engineered DNA Origami: Responsive Locking of DNA Quadrilateral for Biosensing Application

Abstract DNA nanotechnology offers unique opportunities for creating various accurate and responsive nanostructures. Nevertheless, large-scale conformational changes with high geometric precision and efficiency remain major challenges. Herein we report a topologically engineered...

Trends and Lagged Cumulative Associations Between Vegetation NDVI and Extreme Climate Indices in the Yangtze River Basin: A 41-Year Observational Analysis

Extreme climate events can disturb vegetation dynamics and alter ecosystem stability. This study investigated the evolution of extreme climatic conditions and vegetation greenness across the Yangtze River Basin during 1982–2022 by integrating CN05.1 daily meteorological records w...

Microcomb-driven large-scale fully connected quantum network

Abstract Fully connected quantum networks enable simultaneous connection of every user to every other user and are a highly versatile and robust networking architecture. However, the scalability of such networks remains a great challenge for practical applications. Here we constr...

Alternating-chiral charge density waves and associated spin polarization in monolayered NbTe2

Intertwining of different quantum degrees of freedom manifests exotic quantum phenomena in many-body systems, especially in reduced dimensionality. Here we show that monolayered NbTe2 serves as a promising platform where lattice, charge, and spin degrees of freedom manifest coope...

Urban water system resilience and risk assessment in a typical arid industrial city: a case study of Karamay

This study develops a multi-dimensional framework to assess urban water resource resilience and risk in Karamay, a typical resource-based industrial city in arid northwest China. By integrating long-term data on water supply and demand, meteorological and hydrological conditions,...

CO2 laser processing of fused silica: a review of mechanisms, defect control and functionalization

Fused silica optics are critical components in inertial confinement fusion facilities, where they are exposed to intense ultraviolet laser radiation. However, processing induced subsurface defects serve as laser damage precursors, severely degrading the laser-induced damage thres...

Research on an Innovation Opportunity Identification Method Based on Link Prediction in Heterogeneous Networks

A large number of potential knowledge associations in scientific and technological innovation activities have not yet become explicit. How to identify potential valuable innovation opportunity clues from complex knowledge structures has therefore become an important issue in inte...

An orthogonal transcription system enables high-efficiency rescue of measles virus-based vaccine vectors against multiple pathogens

Recombinant measles virus (rMeV) vectors are promising platforms for vaccine development against emerging infectious diseases due to their safety, stability, and potent immunogenicity. However, conventional rMeV rescue systems frequently exhibit low efficiency, thereby constraini...

Analysis of the evolution of South-South Cooperation from the perspective of Southern Identity

Abstract We propose the term “Southern Identity” to encompass the concepts of the Third World, developing countries and the Global South, establishing a logical counterpart to Western Identity. The concepts of the Third World, developing countries and the Global South arose withi...

CritiFlip: an efficient bit-flip attack based on critical weight identification

Abstract Recent studies have demonstrated that deep neural networks (DNNs) are highly vulnerable to bit-flip attacks (BFAs), where modifying only a few bits in memory can severely degrade model performance. However, existing BFA techniques typically rely on exhaustive searches ov...