University of Chinese Academy of Sciences

Hydrolysis of 1,4‐Butanediol‐Derived Polyesters Into Tetrahydrofuran and Dicarboxylic Acids Over Lewis Acidic Ionic Liquids

Chemical transformation of discarded polyesters into high‐value chemicals is of great significance for advancing circular economy and sustainable development. Herein, we report a facile and efficient strategy for one‐pot conversion of 1,4‐butanediol‐based polyesters (BDPs) via eq...

Hydrogenation of CO2 to Propane and n -Butane by Engineering Metal Oxide Interfacial Structure and Manipulating Zeolite Pore Structure and Acidity

Abstract Selective hydrogenation of CO2 to propane and n-butane is of great interest, as these two compounds are not only primary components of liquefied petroleum gas (LPG) but also crucial raw materials for preparing propene and a degradable plastic precursor of succinic acid....

Automated Construction of Geospatial Analysis Workflows: Recursive Solving of Elementary Modeling Questions Adaptive to Workflow Construction Contexts

ABSTRACT Geospatial analysis workflows are widely used to address complex geographic problems, but their construction is challenging due to dynamic contextual factors like the characteristics of the study area, geo‐models, and datasets during construction process. Current automat...

Numerical analysis of the fluid flow and heat exchange characteristics in a low-temperature and high-permeability reservoir of a heat storage and heating system

It is a promising energy strategy to utilize a shallow, low-temperature geothermal reservoir for seasonal heat storage and heating, with the potential to meet winter heating needs in decentralized rural buildings. The fluid flow and heat exchange in the reservoir govern the therm...

Proteoform-Resolved Interaction Mapping of Target Protein Complexes in Living Cells via Tracelessly Releasable Cross-Linking

Abstract Proteoform-resolved interaction analysis is critical for understanding the functional diversity of multiple proteoforms from the same gene and their complexes. However, current technologies are still limited in resolving in vivo interactions at the proteoform level. In v...

Birch-Type-Reduced Carbazole Anions Enable Redox-Adaptive Super-Reducing Photocatalysis

Abstract Photocatalytic activation of inert chemical bonds is constrained by the redox potential of the catalyst. Here, we report a redox-adaptive photocatalytic strategy in which an electron-rich carbazole photocatalyst, CBZ6, functions as a molecular redox transformer through t...

A two-stage cascaded prediction framework for urban inundation depth using a dual-branch CNN-ConvLSTM network

Study region Shenzhen, China, is a densely urbanized subtropical megacity characterized by extensive impervious surfaces, rapid runoff responses, and frequent rainfall-induced inundation. Study focus To address the underestimation of urban inundation depth driven by severe zero-i...

Drought memory and vegetation shifts triggered by recurrent extreme drought events in alpine peatlands amplify the sensitivity of carbon sink function to drought

Climate change is expected to intensify the frequency and severity of extreme drought events, profoundly influencing terrestrial ecosystem carbon budgets. Peatlands are crucial carbon reservoirs in the global carbon cycle, storing nearly one-third of the world's soil carbon. Howe...

Concurrently Achieving Excellent Anti‐Thermal Quenching and Ultrahigh Light Yield in Scintillation of Hybrid Manganese Halides

ABSTRACT Simultaneously achieving high thermal stability and excellent scintillation performance in Mn‐based organic inorganic hybrid metal halide (Mn‐OIMH) scintillators remains a highly challenging task. Through the rational substitution of the monocation by asymmetric dication...

Fluorination‐Driven Molecular Polarization Engineering in Hydroxyfluorooxoborates for Generating Strong Short‐Wavelength Nonlinear Optical Responses

ABSTRACT The short‐wavelength ultraviolet (UV, <280 nm) all‐solid‐state lasers, which rely on nonlinear optical (NLO) crystals for second‐harmonic generation (SHG), are of great significance for advanced scientific and industrial. However, the inherent randomness of obtaining non...

A helix-loop-helix gene orchestrates male fate in common carp

Fish show exceptional diversity in sex-determination mechanisms, making them a powerful system for studying how these pathways evolve. However, no definitive master sex-determining gene has yet been identified in Cyprinidae, a widely distributed and species-rich fish family. Here...

An Efficient Parcel-Center Sampling Strategy for Parcel-Scale Crop Classification Using Multiresolution Remote Sensing

Parcel-scale crop classification is fundamental to agricultural remote sensing and precision agriculture. The integration of detailed parcel information with medium-spatial-resolution remote sensing data has become an important technical approach to parcel-scale crop classificati...

Intensifying compound drought–heatwave events weaken ecosystem water-use efficiency in the Nile River Basin

Climate warming has intensified compound drought–heatwave (CDHW) events worldwide, posing growing threats to ecosystem carbon–water dynamics. However, the impacts of CDHWs on ecosystem water-use efficiency (WUE), particularly event sequencing, drought memory, and climatic heterog...

LLMDPA: pre-execution privacy auditing of DP-SGD via evidence-constrained semantic analysis

Abstract Privacy auditing has emerged as a critical component for safeguarding data privacy in machine learning models. Existing empirical auditing methods heavily rely on model runtime states or post-deployment interfaces, resulting in substantial time costs and limited source-l...

Data-Driven Inference of Susceptibility, Correlation, and Dynamic Responses via Machine Learning

Abstract Understanding how complex systems respond to external perturbations is essential to characterize the intrinsic properties of the systems and then to control their responses. Despite some preliminary trials via either analytical modeling or numerical calculations, it is u...

Thermo-mechanical analysis and structural modification of the boss–liner interface in Type IV hydrogen pressure vessels

Type IV hydrogen pressure vessels rely critically on the boss–liner interface for sealing, which is challenged by coupled temperature and pressure variations. Since the localized evolution of interfacial contact behavior lacks sufficient quantitative characterization, this study...

Unusual Switch of Cell Death Mode by Docosahexaenoic Acid (DHA) via Enhancing Endoplasmic Reticulum Peroxidation Induced by Lipophilic Iron Complex

Although ferroptosis is a programmed iron-dependent cell death, many lipophilic iron complexes fail to induce ferroptosis through iron overload. The underlying mechanisms remain unclear. Here we found that a typical lipophilic iron complex 8-hydroxyquinoline (8HQ)-Fe(III) (1: 1,...

Form Measurement of a 300 mm Ellipsoidal Binary Grating Using a Spatio-Temporal Fourier Method

Abstract For conventional laser Fizeau phase-shifting interferometry, form measurement of ellipsoidal binary gratings remains challenging because of the discontinuous grating structure with groove depths exceeding half the illumination wavelength. In this study, we propose a spat...

A configurational-force-guided intra-element cracking strategy for ECZM-FDEM rock fracture simulation

Crack paths in cohesive-zone-model-based finite-discrete element method (CZM-FDEM) simulations are often constrained by pre-existing element boundaries, while intrinsic cohesive insertion may introduce artificial compliance before fracture activation. This study develops a config...

Engineered nickel foam dual-function electrode optimised electron transfer and biohydrogen evolution in single chambers microbial electrolysis cells

The widespread deployment of microbial electrolysis cells (MECs) for sustainable H 2 production is critically hindered by the reliance on costly platinum-based electrodes. Herein, we develop a ferric oxyhydroxide-intercalated cobalt phosphide composite supported on nickel foam (F...