Hydrogel-based strain sensors inspired by nature have attracted tremendous attention for their promising applications in advanced wearable electronics. Nevertheless, achieving a skin-like stretchable conductive hydrogel with synergistic characteristics, such as ideal stretchability, excellent sensing performance and high self-healing efficiency, remains challenging. Herein, highly stretchable, electro-conductive hierarchically triple-network structure was developed through facile two-step...

Novel oil-based epoxy acrylate (EA)-like prepolymers were synthesized via the ring-opening reaction of epoxidized plant oils with a new unsaturated carboxyl acid precursor (MAAMA) by reacting maleic anhydride (MA) methallyl alcohol (MAA). Since employed including soybean oil (ESO), rubber seed (ERSO), and wilsoniana (EWSO) possessed values 7.34–4.38%, obtained (MMESO, MMERSO, MMEWSO) indicated C=C functionality 7.81–4.40 per triglyceride. Furthermore, effects addition hydroxyethyl...

When the use of optical images is not practical due to cloud cover, Synthetic Aperture Radar (SAR) imagery a preferred alternative for monitoring coastal wetlands because it unaffected by weather conditions. Polarimetric SAR (PolSAR) enables detection different backscattering mechanisms and thus has potential applications in land cover classification. Gaofen-3 (GF-3) first Chinese civilian satellite with multi-polarized C-band imaging capability. Coastal wetland classification GF-3...

Abstract To reveal the mechanism of influence curing temperature on strength lime activated fly ash-GGBS cured silt soil, dredged was carried out by using ash and GGBS as agent activator. Unconfined compressive (UCS) experiments were out, micro-analysis experimental methods including scanning electron microscope (SEM) tests, X-ray diffraction (XRD), etc. to silt. According test results, hydration reaction pozzolanic between lime-fly soil promoted with increase temperature. when sample...

Population distribution and socioeconomic development are pivotal elements for achieving national sustainable represent critical aspects of the spatiotemporal heterogeneity imbalance within “Mid-Spine Belt Beautiful China”. This study examines spatial patterns evolutionary characteristics population from 1935 to 2020 economic dynamics 2010 in China” through methods such as interpolation, autocorrelation, other advanced analytical techniques. Furthermore, article explores coordination between...

Time-series monitoring of the land subsidence in Yangtze River coastal area is crucial for maintaining river stability and early warning disasters. This study employed PS-InSAR SBAS-InSAR techniques to monitor along Nanjing, using a total 42 Sentinel-1A images obtained between April 2015 November 2021. The accuracy both methods was compared validated, while comprehensive analysis conducted ascertain spatial distribution characteristics underlying causes subsidence. maximum deviation two six...

The utilization of advanced remote sensing methods to monitor the coastal wetlands is essential for conservation and sustainable development. With multiple polarimetric channels, synthetic aperture radar (PolSAR) increasingly employed in land cover classification information extraction, as it has more scattering than regular SAR images. Polarimetric decomposition often used extract from SAR. However, distinguishing all types using only one complex ecological environments such not easy, thus...

The typical platinum nanoparticles loaded on titania (Pt/TiO2) were pretreated with mild oxidation (<300 °C) in pure oxygen to enhance the low-temperature formaldehyde (HCHO) decomposition performance. structural properties of support and characterized by X-ray diffraction (XRD), physical adsorption/desorption, high-resolution transmission electron microscopy (HRTEM), situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFITS), temperature-programmed reduction (TPR TPO)....

Purpose As one of the world's most productive ecosystems, ecological land plays an important role in regional and global environments. Utilizing advanced optical synthetic aperture radar (SAR) data for cover/land use research becomes increasingly popular. This aims to investigate complementarity fully polarimetric SAR imaging classification eastern coastal area China. Design/methodology/approach Four decomposition methods, namely, H/Alpha, Yamaguchi3, VanZyl3 Krogager, were applied Advanced...

Land-cover datasets are crucial for earth system modeling and human-nature interaction research at local, regional global scales. They can be obtained from remotely sensed data using image classification methods. However, in processes of classification, spectral values have received considerable attention most methods, while the curve shape has seldom been used because it is difficult to quantified. This study presents a method based on observation that composed segments certain extreme...

The optical characteristics of vertically distributed aerosols over Saudi Arabia were investigated using the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) data from 2007 to 2019. study region was divided into three parts (Region I: Tabuk, Makkah, Al Madinah, Asir, Bahah, Jizan, Riyadh, Mecca, Medina, eastern region, Kassim, Hale, Baha, northern border Najilan, Jufu. Region II: Ar, Al, Ha, Najran. III Hudud ash Shamaliyah Ash Sharqiyah) understand regional...

Multi-Source RS data integration is a crucial technology for rock surface extraction in geology. Both Terrestrial laser scanning (TLS) and Photogrammetry are primary non-contact active measurement techniques. In order to extract comprehensive accurate information by the of TLS point cloud digital images, segmentation based on integrated results generated registration crux. This paper presents Multi-Features Fusion Simple Linear Iterative Clustering (MFF-SLIC) hybrid superpixel algorithm...

Based on GNSS observations, the co-seismic and post-seismic slip of 2024 Noto Peninsula earthquake spatio-temporal pattern afterslip are investigated in this paper. The is mainly distributed depth range 2 to 15 km with maximum value 5.94 m. Compared rupture pattern, a shallow can be observed after earthquake, patch formed northeast epicenter. during 180 days 1.13 m, which situated at longitude 137.53°, latitude 37.75°, epth 5.43 km. evolution indicates that fault activity has continued...

Assessment literacy (AL) has emerged as an important research field during the past decade, yet it remains a great challenge for secondary school EFL teachers in China to appropriately enact their assessment literacy. Due attention needs be paid upon teachers’ conceptions of (CoA) and practice. Based semester’s observation English classes China, weekly meetings on teaching research, focus group interview, individual interviews, documents such participants’...

In this paper, we perform a comprehensive analysis of contemporary three-dimensional crustal deformations over the Tibetan Plateau. Considering that coverage continuous GNSS sites in Plateau is sparse, newly designed method mainly contains Spatial Structure Function (SSF) construction and Median Filtering (MSF) adopted to conduct imaging point-wise velocities, which can well reveal spatial pattern vertical motions. The result illustrates Himalayan belt bordering Nepal appears significant...

Vegetation phenology is highly sensitive to climate change, and an examination of vegetation across diverse climatic conditions crucial for identifying key factors influencing dynamics. However, there a significant lack macroscopic research quantitative assessments on the response meteorological in large-scale zones. This study employed Whittaker filtering dynamic thresholding extract phenological parameters China. Trend analysis was used investigate spatiotemporal changes from 1982 2022,...

摘要: 建立了分离提取蛋氨酸、亮氨酸、苯丙氨酸和色氨酸的磷酸二(2-乙基己基)酯(D2EHPA)煤油-HCl反萃分散组合液膜体系,考察了料液相pH值、载体D2EHPA浓度、液膜相与反萃相体积比、反萃相组成、料液相与反萃分散相流速、传输时间以及支撑膜重复使用次数对氨基酸渗透系数和传输效率的影响。 在优化的条件下,建立的反萃分散组合液膜体系对4种氨基酸均可以获得大于35%的传输效率,其中色氨酸和亮氨酸的传输效率超过了79%,且传输效率呈Et,Trp>Et,Leu>Et,Phe>Et,Met的趋势。 支撑膜重复使用25次,对氨基酸的传输效率没有明显改变。建立的液膜体系对考察的氨基酸展示了较高传输效率和优越的传输选择性,是一种简单和环境友好的分离技术。

The frequency dispersion of wideband phased array will lead to the variation beam point angle with transmit signal. In this letter, such phenomenon be exploited for squint video SAR. Firstly, make centroid Doppler independent from range frequency. spectrum support region rectangular in case. Therefore, different components signal illuminate same ground target slow time duration. A SAR can obtained through splitting instead spectrum. Then, azimuth resolution maintained. Meanwhile, large...