Ruddlesden-Popper Sn perovskites with ionic liquid bulky spacers show improved stability and efficiency. The new spacer enhances inter-component interaction, leading to high-quality crystals with narrow phase distribution.
Researchers discovered five handprints and five footprints in travertine from a hot spring on the Tibetan Plateau, dated to between ~169,000 and 226,000 years ago. The prints appear to have been deliberately placed by two children, one aged 7 and the other 12, making them the oldest known example of parietal art.
Researchers found that surface fluxes of momentum, heat, water vapor, and carbon dioxide over complex terrains are not representative at near-surface heights. Multilevel observations on towers can help derive accurate surface flux values.
Researchers deployed 100 short-period seismometers to measure ice flow velocity in East Antarctica, tracking movement of up to 1m over a one-month period. The study found that seismic stations on ice sheets showed shifting longitude distributions, while those on bedrock maintained consistent coordinates.
Researchers have constructed new sea surface salinity indexes to identify two types of El Niño events (EP and CP) independently. The indexes are based on different key areas with varying ocean salinity patterns.
The GPGD database contains records for 903 herb species, including DNA barcodes, organelle genomes, and whole genomes. It provides essential resources for species identification, biosynthetic pathway decomposition, and molecular-assisted breeding analysis.
Scientists at Huazhong University of Sci. & Tech. present a soft and disordered hyperuniform elastic metamaterial (DHEM) that achieves remarkably high efficiency vibration concentration in broad frequency band, reaching up to ~4000 enhancement factor. The DHEM design covers a range of frequencies from ~100 Hz to ~10 kHz.
A recent study analyzed the structure of heatwaves in China from 1961 to 2017, finding that most summertime heatwaves were compound heatwaves with both hot days and hot nights. The study also revealed the influence of urbanization on heatwave structures and provided instructions for researchers to customize heatwave indices.
The Xishancun landslide in China has been analyzed using high-frequency receiver functions from local earthquakes, revealing higher Poisson's ratios and low-velocity layers. These findings suggest the potential hazards of water-rich materials and delineate geotechnical structures for stability analysis and hazard mitigation.
Researchers analyzed zircon grains from ancient rocks in South Africa to find evidence of supracrustal material recycling in the Archean period. They discovered that this process occurred at depths greater than 40 km, with zircon oxygen isotope values indicating interaction with low-temperature water and surface processes.
Researchers investigated the effects of microgravity on the brain's extracellular space and found that fluid transfer leads to adaptive changes in brain parenchyma, CSF, and blood vessels. The study revealed accelerated ISF drainage at day 3, slowed drainage at day 7, and irreversible changes after reloading.
Recent research advances in wet-chemical synthesis of two-dimensional metal nanomaterials have improved the efficiency and stability of electrocatalysts. The authors reviewed various synthetic methods and explored their applications in different electrochemical reactions.
Researchers propose a new coding strategy to achieve accurate and ultra-broadband control of harmonic waves based on time-domain digital coding metasurface. A 256QAM mmWave wireless communication system was successfully established, offering system simplicity, cost reduction, and energy efficiency.
A study using nationwide mobility data in China examined extreme fluctuations in population movements during the Lunar New Year travel season and COVID-19 lockdowns. The results showed that high-tier prefectures retained stable clusters, while low-tier prefectures had larger population flows to these areas.
Scientists used LP-TA spectroscopy to study molecular orientation at heterojunctions of all-small-molecule organic solar cells. The angle between donor and acceptor molecules was estimated, revealing parallel and vertical orientations in different blends. This technique provides complementary information for X-ray scattering measurements.
Researchers developed cross-linked hole transport layers to improve perovskite tandem solar cell efficiency by reducing non-radiative recombination and increasing charge extraction rates. This approach enables higher power conversion efficiencies, surpassing the Shockley-Queisser limit of single-junction solar cells.
Scientists have created a high-spin divacancy color center in silicon carbide with exceptional optical and spin properties. This achievement enables the development of room-temperature solid-state quantum storage and scalable quantum networks based on SiC spin color centers.
The LSXI will use a lunar platform to continuously observe the global images of the Earth's magnetosphere, providing unprecedented observational coverage and innovations in magnetospheric physics research. The instrument combines space-based and ground-based detection results to predict and mitigate space weather disasters.
Scientists at Tsinghua University have successfully created micro-scale devices that can slide for up to 100 km without wear or friction. The devices use structural superlubricity, which enables near-zero friction and zero wear during sliding, making them suitable for a wide range of applications.
Researchers have developed a new method to sequence and quantify plant endophytic bacterial communities using 16S rRNA gene sequencing. The newly designed primer sets effectively avoid plant-DNA contamination and provide good bacterial coverage, making them suitable for various plants.
Researchers developed a novel electrocatalyst by doping Cu with Ru, achieving higher Faradaic efficiency and yield rate for ammonia synthesis from nitric oxide. The optimized catalyst reduces reaction energy and desorption energy of ammonia, enabling efficient NO-to-NH3 conversion.
Researchers have developed a novel gas sensor using SnS2/black phosphorus heterostructure that can detect trace levels of NO2 as low as 100 ppb at room temperature. The sensor achieves high response, fast response/recovery, and good stability due to Lewis acidity suppression.
Researchers found nodeless superconductivity in Kagome superconductor CsV3Sb5 using precise measurements of magnetic penetration depth. The study provides key evidence for two-gap s-wave superconductivity and constrains theoretical models for pairing mechanism.
Researchers developed a colorization method via color transfer termed CFPM, significantly reducing reconstruction time by 2/3 without sacrificing precision. This technique enables high-throughput full-color imaging in digital pathology.
Researchers designed a novel copolymer with well-balanced ambipolar properties, exhibiting high gain and stability in organic digital and analog circuits. This breakthrough enables the exploration of organic circuits and other related electronic devices.
Researchers develop direct transformation of n-alkanes into all-trans conjugated polyenes via cascade dehydrogenation, offering unprecedented control over molecular weight and stereochemistry. The method has potential applications in constructing molecular topology, circuits, and superconductivity.
A new materials-independent mechanism for magnetic topological states is proposed, resulting in a family of 2D magnetic topological materials with high Chern numbers. The study reveals stable ferromagnetism and high Curie temperatures, sparking further experimental explorations.
Researchers develop a new unsplit complex frequency-shifted perfectly matched layer (UCF-PML) method for simulating second-order acoustic wave equations. The TS-CPML implementation outperforms conventional CPML in terms of absorbing efficiency, leading to more accurate seismic wavefield simulations.
The article discusses the challenges of channel state information (CSI) acquisition in mmWave massive MIMO systems, which relies on accurate beamforming. Traditional and machine learning-based approaches are investigated to overcome these challenges, including beam training and channel estimation methods.
A recent study found that the east Asian monsoon's northward advance induced globally significant silicate weathering, a major CO2 sink. The research suggests that weathering of the Mg-rich Yangtze craton and surrounding terranes played a crucial role in this process.
Research finds serum aldosterone level independently associated with all-cause mortality and primary endpoint in HFpEF patients. Higher aldosterone levels correlate with increased risk of concentric left ventricular remodeling and poor prognosis.
The paper reveals that less than one-third of annual SAT variations are contributed by the warming trend, highlighting its significance over tropical regions. Local ecosystems may be disproportionately affected in these areas, warranting increased attention.
Researchers propose an OV-engineering strategy to realize high-content anion doping in TiO2, enhancing charge transfer kinetics and sodium-ion storage performance. The optimized A-TiO2-x-S/C anode exhibits high-rate capability and ultrahigh energy density.
Researchers provide a systematic overview of printing technologies for scaling up perovskite solar cells, highlighting the key role of ink engineering in achieving high-quality thin films. The study also discusses the technical feasibility of printing additional layers and presents progress on roll-to-roll printing and stability issues.
Researchers propose a new method to realize Majorana zero modes in monolayer Fe(Te,Se) using an in-plane magnetic field and electric gating. The study demonstrates that the material is a promising platform for topological quantum computation with scalability and electrical tunability.
Researchers characterize Photorhabdus Virulence Cassette as potent effector Pdp1, responsible for cytotoxicity against eukaryotic cells. The cassette enables direct translocation of effectors into mammalian macrophages to induce cell death.
The brain's globally sparse yet locally compact modular topological characteristics reduce resource consumption for establishing connections. The research model shows that rewiring the network to a more biologically realistic modular structure significantly reduces running consumption and building cost.
Researchers have developed high-performance polarization-sensitive photodetectors on 2D β-InSe, exhibiting excellent stability and strong anisotropic optical and electronic properties. The material's unique crystal structure enables direct detection of polarized light without optical filters or polarizers.
The study presents a phononic crystal that enables robust topological states at three dimensions, allowing for diverse wave steering applications. The researchers demonstrated the ability to engineer negative refraction of sound waves and utilize topological hinge states as transport channels.
Researchers inverted lunar regolith parameters using microwave radiation data from the Chang'e lunar sounder. The study reveals regolith thickness distribution and provides support for selecting sampling sites for future missions.
Researchers investigated aboveground biomass and its spatial distribution pattern of herbaceous marsh vegetation in China, revealing regional variations in biomass density and total biomass. The study provides a scientific basis for carbon sequestration evaluation and adaptive management of marsh wetlands in China.
A recent study using REST-meta-PD analyzed brain activity data from 15 PD patient studies, finding that up to 80% of voxels declared significant may not be replicable across datasets. The researchers propose a normative modelling method to improve reproducibility and generalizability.
A recent study found that coral reefs in the South China Sea adjust their trophic patterns in response to environmental conditions. By analyzing zooxanthellae density, nutrient levels, and light intensity, researchers discovered that corals can shift from autotrophic to heterotrophic modes of nutrition, enhancing their adaptability to ...
A recent study found that China's annual mean surface wind speed stopped weakening around 2014 and started strengthening, but stilling persists in certain regions. The reversal was driven by regional and seasonal variations.
A recent study identified 363 marine invertebrate RNA viruses from 58 samples, revealing high genetic diversity and elasticity. The findings suggest possible virus transmission across different ocean areas and host species, shedding light on the origin of hantaviruses.
Researchers have developed PSII-based biomimetic assemblies to improve photosynthetic activity, leveraging synthetic luminescent materials to boost ATP synthesis. The system combines PSII with artificial structures to optimize light absorption and overcome stability limitations.
A study finds that cropland redistribution to marginal lands undermines environmental sustainability, increasing wind erosion, irrigation water consumption, fertilizer use, and decreasing natural habitats. The study suggests restricting land reclamation and boosting crop yields for both food security and environmental benefits.
Researchers investigated molecular characteristics of DOM pool in Xiangshan Bay, a semi-enclosed coastal bay in China. They found terrestrial signals decreasing with increasing salinity due to seawater dilution effect and anthropogenic inputs contributing to DOM cycling.
The paper presents a comprehensive overview of protected satellite communications systems, highlighting critical technologies and practical application scenarios. The authors discuss the importance of protected SatComs in military communications and identify remaining challenges and future research directions.
Heavy fermion systems like CeRh6Ge4 display a 'strange metal' phase with linear resistivity and logarithmic specific heat coefficient upon pressure application. This behavior is similar to cuprate superconductors, indicating an unconventional quantum critical point.