High-entropy MXenes, as a new emerging class of materials, possess diverse compositions, unexpected physicochemical characteristics and great potentials for electromagnetic (EM) wave absorption. Herein, two single-to-few-layer high-entropy (Mo_0.25Cr_0.25Ti_0.25V_0.25)₃C₂T_x (Mo_0.2Cr_0.2Nb_0.2Ti_0.2V_0.2)₄C₃T_x, were synthesized the first...

Abstract The annual minimum Antarctic sea ice extent (SIE) in February 2022 hits a record low the satellite era, with less than 2 million square kilometres observed on 25 2022, contrasting slightly positive trend SIE prior to 2014. However, preceding Amundsen Sea Low (ASL) austral spring 2021 was deepest since 1950. According linear regression model, very ASL contributed about 60% 2022. This study further investigates underlying mechanism. investigation of lagged impact is based...

Abstract. Synthetic Aperture Radar (SAR)-based sea ice classification faces challenges due to the similarity among surfaces such as wind-driven open water (OW), smooth thin ice, and melted surfaces. Previous algorithms combine pixel-based region-based machine learning methods or statistical classifiers, yet struggle with hardly improved accuracy arrested by fuzzy limited manual labels. In this study, we propose an automated algorithm framework combining semantic segmentation of regions...

Numerical models serve as an essential tool to investigate the causes and effects of Arctic sea ice changes. Evaluating simulation capabilities most recent CMIP6 in volume flux provides references for model applications improvements. Meanwhile, reliable long-term results contribute a deeper understanding response global climate change.In this study, through six gateways over past four decades (1979–2014) were estimated combination satellite observations concentration (SIC) motion...

Passive microwave (PM) and synthetic aperture radar (SAR) observations are essential tools for providing long time series of sea-ice cover information, including concentration (SIC) extent (SIE). Large uncertainties have been revealed in PM SIC/SIE products the marginal ice zone (MIZ) during melting season, where fusion with SAR data could be effective improving accuracy due to its high spatial resolution ability preserve detailed distributions. A comprehensive comparison is needed better...

Sea ice drift is a critical parameter for understanding the rapid changes in Arctic sea ice. Since release of Coupled Model Intercomparison Project Phase 6 (CMIP6), there has been lack quantitative analysis regarding CMIP6's simulation drift. This study aims to assess simulated from 1979‒2014 by fifteen CMIP6 models against recent satellite retrievals, utilizing various indices. Additionally, influence near-surface wind and surface ocean current on model performance further analyzed. The...

Whether recent Arctic sea ice loss is responsible for severe winters over mid-latitude continents has emerged as a major debate among climate scientists owing to short records of observations and large internal variability in mid- high-latitudes. In this study, the authors divide evolution autumn extent during 1979–2014 into three epochs, 1979–1986 (high), 1987–2006 (moderate), 2007–2014 (low), using regime shift identification method. The then compare associations between winter anomalies...

The Hadley circulation (HC) has conventionally been considered as thermally direct with uniform zonal distribution. However, the meridional in tropics is far from uniform, including cells associated global monsoon heating and indirect absence of diabatic heating. This study aims at assessing different regions, identifying geographic sectors responsible for interannual variability HC strength boundaries, unraveling underlying mechanism edges intensity. Results derived ERA-Interim reanalysis...

Abstract In view of the lack conformal, load‐bearing, light‐weight, and high temperature‐resistant integrated wave‐absorbing composites suitable for extremely complex conditions, gel‐casting process was successfully applied to porous Si 3 N 4 in this work. A universal low‐slurry gel casting prepared by using two dispersants acting together (tetramethylammonium hydroxide solution sodium lauryl sulfate), which ensured smooth completion process. Combining thermogravimetric differential thermal...

Abstract In the Southern Hemisphere, variability of stratospheric polar vortex is an important driver surface climate. this study, we explore influence weakening and strengthening on regional Antarctic sea ice in observations model simulations. We propose a two‐stage mechanism that translates harbingers to changes: (a) it starts with highly correlated Amundsen Sea Low (ASL); through modulation ASL thus winds, (b) weak leads statistically significant decrease over Ross increase around...

Abstract Snowmelt is a critical component in the cryosphere and has direct impact on Earth’s energy water budget. Here, 40-yr integrated melt onset (MO) dataset over sea ice, ice sheets, terrestrial snow compiled from spaceborne microwave radiometers ERA5, allowing an overall assessment of cryosphere. Results suggest that MO both hemispheres shows latitudinal vertical zonalities. The global presented trend toward earlier (−2 days decade −1 ) with hotpots distributed at Northern Hemisphere...

The ever-increasing air traffic demand in China has brought huge pressure on the planning and management of, investment in, terminals as well airline companies. In this context, accurate adequate short-term forecasting is essential for operations of those entities. consideration such a problem, hybrid model based empirical mode decomposition (EMD) seasonal auto regressive integrated moving average (SARIMA) been proposed paper. decomposes original time series into components at first, models...

With the development of cloud computing technology, future Smart Grid (SG) is expected to have efficient, reliable, secure and cost-effective power management. However, use emerging technologies such as virtualization makes existing SG networks face new threats, which not been considered in traditional network environments. Therefore, combination with characteristics computing, conducting a reasonable effective security risk assessment cloud-based great significance for solving issues SG....

The preparation of boron nitride nanosheets (BNNSs) with high efficiency and low cost has consistently been a primary obstacle, limiting their large-scale applications. In this study, BNNSs well crystallization were efficiently synthesized at 1000 °C, by using solid state method to synthesize blocky ZnB2O4 melting point as the precursors. This can achieve source utilization up 76% single batch yield gram level. addition, BNNS/Si3N4 microwave-transparent composites prepared investigate...

Numerical models serve as an essential tool to investigate the causes and effects of Arctic sea ice changes. Evaluating simulation capabilities most recent CMIP6 in volume flux provides references for model applications improvements. Meanwhile, reliable long-term results contribute a deeper understanding response global climate change. In this study, through six gateways over past four decades (1979–2014) were estimated combination satellite observations concentration (SIC) motion (SIM) well...

The absolute positioning technique based on cross coding inductive loop wire has been recognized as the most suitable one to be applied in medium-low speed maglev train system, and measuring method which utilizes information collected from lowest address code line also a reliable way for such system. Consider that system is kind of wireless communication it sure affected interfered by complicated electromagnetic environment along track engineering application. Many related research have...