Groundwater plays a crucial role in the formation of Badain Jaran Desert-Sand Dune Lake System, which has been designated UNESCO World Heritage Site 2024. However, region’s wetland ecosystem is significantly impacted by climate change and human activities. This study utilizes GRACE satellite data situ observation to establish groundwater storage anomaly (GWSA) time series for Desert its surrounding areas (BJDCA) from 2003 2022. The analysis reveals spatiotemporal patterns drought...

Cloud fraction significantly affects the short- and long-wave radiation. Its realistic representation in general circulation models (GCMs) still poses great challenges modeling atmosphere. Here, we present a neural network-based diagnostic scheme that uses grid-mean temperature, pressure, liquid ice water mixing ratios, relative humidity to simulate sub-grid cloud fraction. The scheme, trained using CloudSat data with explicit consideration of grid sizes, realistically simulates observed...

Frustrated Lewis pair chemistry (FLP) occupy a crucial position in nonmetal-mediated catalysis, especially toward activation of inert gas molecules. Yet, one formidable issue homogeneous FLP catalysts is their instability on preservation and recycling. Here we contribute general solution that marries the polyhedral oligomeric silsesquioxane (POSS) with structurally specific frustrated acid to fabricate porous polymer networks, which can form situ water-insensitive heterogeneous upon...

Abstract The conversion and utilization of greenhouse gases other polluting in a green way represents crucial strategy for developing C 1 chemistry mitigating the dual crises energy scarcity effect. As class polyatomic molecules with relatively simple structure, gas are directly involved assembled process as building blocks, converting them into polymer assemblies under mild low consumption, constructing recyclable functional materials, which is great significance to enrich block assembly...

Chiral molecular cages are demonstrated to have unique applications in enantioselective chemistry owing their 3D cage-like geometry and intrinsic cavity. Yet, the role of chirality physical properties condensed materials, for example, manipulation electronic spin behaviors, remains elusive. Here, we report that chiral organic can become an appealing system realize highly efficient filtering through chirality-induced selectivity (CISS) effect. A pair triphenylphosphine-containing (Pcages)...

Here we present a "breathing" nanogel that is fueled by CO2 gas to perform temporally programmable catalytic polymerization. The composed of common frustrated Lewis pair polymers (FLPs). Dynamic -FLP gas-bridging bonds endow the with transient volume contraction, and resulting proximal effect bound FLPs unlocks its capacity toward . Reverse depletion via -participated polymerization can induce reverse expansion, which shuts down activity. Control external factors (fuel level, temperature or...

Great efforts have been devoted to designing organic molecular cages with a 3D topology and shape persistence. Yet, how harness these as atomically precise, nanosized building blocks construct hierarchical superstructures remains underexplored. Here we report strategy that exploits functionalized premade nanobuilding units connects them into self-assemblies structural hierarchy tunable dimensionality. Using triphenylphosphine oxide (Ph3P═O)-paneled trigonal prism vertex-decorated cage...

Abstract Conventional thermosets consisting of polymer networks with robust and irreversible chemical linkages are incapable reshaping or reprocessing once formed. In contrast, reversible non‐covalent crosslinks can impart structurally flexible reconfigurable feature to the networks, but at expense certain mechanical strength. The integration fixed covalent bonds noncovalent into these materials usually attain enhanced properties meanwhile provide dynamic adaptable functions, such as...

Particulate matter (PM) with an aerodynamic diameter of <2.5 μm (PM2.5) has become the primary air pollutant in most major cities China. Some studies have indicated that there is a positive correlation between aerosol optical thickness (AOT) and surface-level PM2.5 concentration. In order to estimate concentration over large areas, model relating AOT been established. The scale height relative humidity as well effect surface temperature wind velocity were introduced enhance model. 2013 full...

Significant efforts have been dedicated to designing porous organic cage compounds with geometric complexity and topological diversity. However, the use of these molecules as premade building units for constructing infinite cage-based superstructures remains unexplored. Here, we report a panel-decorated phosphine special monomer achieve supramolecular polymerization, resulting in cage-by-cage noncovalent polymers through synergy metal-coordination intercage

Quantitative reconstruction of regional paleotemperature is the key to understanding temperature change and its driving mechanisms. In this study, 133 phytolith samples were collected as proxy indicators from lacustrine sediments Zhunzhahanjilin (ZZH) profile in hinterland Badain Jaran Desert, China. The then analyzed quantitatively reconstruct Holocene at millennial scale. Based on accelerator mass spectrometry (AMS), 14 C dates an ordered clustering method used divide phytoliths into five...

Abstract Here we present a “breathing” nanogel that is fueled by CO 2 gas to perform temporally programmable catalytic polymerization. The composed of common frustrated Lewis pair polymers (FLPs). Dynamic ‐FLP gas‐bridging bonds endow the with transient volume contraction, and resulting proximal effect bound FLPs unlocks its capacity toward . Reverse depletion via ‐participated polymerization can induce reverse expansion, which shuts down activity. Control external factors (fuel level,...