With a rapidly growing sports industry worldwide, one may argue that sports industry agglomeration can play a crucial role in the economy of the sports industry. In particularly, the coupling linkage ...between sports industry agglomeration and economic resilience can be leveraged to promote both economic quality and efficiency. Based on data on three provinces and one city in the Yangtze River Delta region during the 2011-2020 period, this study uses the entropy-weighted TOPSIS method, coupling coordination degree model, and relative development models to explore the coupling coordination relationship between sports industry agglomeration and economic resilience in this region. The results show that: (1) Sports industry agglomeration shows an overall increasing albeit fluctuating trend with inter-provincial differences. (2) Economic resilience has steadily increased, while the economic resilience kernel density curve generally shows a "dual peaks" trend. (3) The coupling coordination between sports industry agglomeration and economic resilience remains in a fluctuating, albeit coordinated state. These findings are relevant for the integration and high-quality development of the sports industry in the Yangtze River Delta region.
Biosurfaces with geometry-gradient structures or special wettabilities demonstrate intriguing performance in manipulating the behaviors of versatile fluids. By mimicking natural species, that is, the ...cactus spine with a shape-gradient morphology and the Picher plant with a lubricated inner surface, we have successfully prepared an asymmetric slippery surface by following the processes of CO2-laser cutting, superhydrophobic modification, and the fluorinert infusion. The asymmetric morphology will cause the deformation of gas bubbles and subsequently engender an asymmetric driven force on them. Due to the infusion of fluorinert, which has a low surface energy (∼16 mN/m, 25 °C) and an easy fluidic property (∼0.75 cP, 25 °C), the slippery surface demonstrates high adhesive force (∼300 μN) but low friction force on the gas bubbles. Under the cooperation of the asymmetric morphology and fluorinert infused surface, the fabricated asymmetric slippery surface is applicable to the directional and continuous bubble delivery in an aqueous environment. More importantly, due to the hard-compressed property of fluorinert, the asymmetric slippery surface is facilitated with distinguished bubble transport capability even in a pressurized environment (∼0.65 MPa), showing its feasibility in practical industrial production. In addition, asymmetric slippery surfaces with a snowflake-like structure and a star-shaped structure were successfully fabricated for the real-world applications, both of which illustrated reliable performances in the continuous generation, directional transportation, and efficient collection of CO2 and H2 microbubbles.
As one common form of gas existing in aqueous environment, gas bubbles have attracted considerable worldwide attention, owing to their promising applications in industrial production and daily life, ...such as pressure sensors, the recovery of valuable minerals from ores, aeration process, and water treatment. Usually, the behaviors of gas bubbles in aqueous environment are mainly dominated by buoyancy force. It drives the gas bubbles out of aqueous medium rapidly, which is unfavorable in various processes, especially in wastewater treatment. In this paper, various types of superhydrophobic poly(methyl methacrylate) (PMMA) sheets are facilely fabricated, such as five‐pointed star, triangle, circular, and ellipse. Compared with other shapes of superhydrophobic PMMA sheets, the prepared superhydrophobic PMMA circular sheet is capable of efficiently adhering gas bubbles and subsequently elongating their retention time in an aqueous environment. Furthermore, superhydrophobic PMMA circular sheet arrays are prepared, which can greatly improve the degradation efficiency of methyl blue by ozone (O3). The investigations indicate that the present approach will find wild applications in bubble‐related fields and provide people with inspirations to develop efficient methods to manipulate gas bubbles in aqueous environment.
Utilizing laser cutting and superhydrophobic surface coating, superhydrophobic poly(methyl methacrylate) (PMMA) circular sheets (SPCS) are facilely fabricated. The prepared SPCS can elongate the retention time and enlarge the contact area of bubbles in water. Furthermore, integrating the superhydrophobic PMMA circular sheet arrays with O3 improves the degradation efficiency of dye pollutants by O3.
To obtain a high-performance heterogeneous photo-catalyst, herein, the hetero-structured ZnIn2S4-NiO@MOF (ZNM) nano-sheets are designed and prepared by partial pyrolysis of nickel-based MOFs (Ni-MOF) ...combined with the low-temperature solvo-thermal method. The results indicate that the NiO nanoparticles, produced by partial pyrolysis of the Ni-MOF, have a high density of the surface active sites with limited aggregation, which act as a co-catalyst to capture photo-induced charge carriers. In addition, the morphology and structure of Ni-MOF nano-sheets were preserved in ZNM, which is beneficial to the reduction of the conduction barrier for the photo generated electron-hole pairs. With the synergetic advantages of co-catalyst and unique two-dimensional hetero-structure, ZNM nano-sheets exhibited significantly improved activity for photo-catalytic hydrogen production.
With the synergetic advantages of NiO co-catalyst and unique two-dimensional hetero-structure, ZnIn2S4-NiO@MOF nano-sheets exhibited significantly improved activity for photo-catalytic hydrogen evolution. Display omitted
The development of a precise and comprehensive mindfulness measurement tool is a compelling area of research due to its lack at present. This study examines the utility of a multifactor mindfulness ...scale, particularly the Chinese version of the Comprehensive Inventory of Mindfulness Experiences (CHIME), among Chinese college students. Prior to formal testing, 410 subjects completed the CHIME-37, providing feedback for refinement. During formal assessment, 1,785 subjects participated, with 490 students retested after 2 months. The validity of the CHIME-37 was evaluated using various scales, including subjective well-being, psychological well-being, peace of mind, self-reflection, insight, emotion regulation, depression-anxiety-stress, and sickness questionnaire. In exploratory factor analysis of Sample 1 ( n = 838), CHIME revealed 8 factors, explaining 70.696% of the variance. Confirmatory factor analysis in Sample 2 ( n = 947) confirmed the 8-factor model’s validity. Internal consistency coefficients ranged from 0.848 to 0.914, with test–retest reliabilities ranging from 0.746 to 0.885, and split-half reliabilities ranging from 0.795 to 0.898. Total and dimension scores correlated positively with subjective well-being, psychological well-being, emotion stability, and cognitive reappraisal ( p < 0.01) but negatively with physical and mental illnesses, depression-anxiety-stress, and expressive inhibition ( p < 0.01). The revised CHIME demonstrates robust reliability and validity, establishing it as a suitable tool for measuring the mindfulness levels of Chinese college students.
In this paper, a new methodology is developed for modeling and analyzing a full-duplex UAV-assisted relay system to facilitate solving the problems of UAV energy constraints and the vulnerability of ...UAVs to eavesdropping in the air. Combining simultaneous wireless information and power transfer (SWIPT) technology, we model the downlink UAV eavesdropping channel and propose a secure transmission protocol for a full-duplex UAV-assisted relay system. Using this transmission protocol, we analyze and derive the connectivity and security of the entire communication link, including connection probability and lower bounds on secrecy outage probability. A key intermediate step in our analysis is to derive the signal-to-digital noise ratio of the destination and eavesdropping nodes of the full-duplex UAV relay link. The analyses show that the power allocation factor λ is a trade-off between system connectivity and security, while greater eavesdropping interference needs to be sacrificed for an equal magnitude of security performance improvement under high security demand conditions.
Based on Social Identity Theory, this study hypothesized the parallel mediating roles of organizational commitment, and commitment to beneficiaries, in the relationship between relational job design ...and future volunteer intentions among episodic volunteers at a mega sport event. Perceived organizational support was tested as a moderator of this relationship.
Participants were 617 episodic volunteers (35.7% male and 64.3% female) at the 7th CISM Military World Games in Wuhan, China, who completed online questionnaires.
Regression-based analyses indicated that relational job design positively predicted future volunteer intentions through organizational commitment. Although the results did not indicate a mediating role of commitment to beneficiaries, relational job design was still shown to positively predict commitment to beneficiaries. Furthermore, the association between relational job design and commitment to beneficiaries was moderated by perceived organizational support, such the effect was stronger when perceived organizational support was high.
The results have practical implications for strengthening episodic volunteers' intentions to participate in future mega sport events, creating a legacy of volunteerism.
•Summarizing recent research progress of ncRNAs in molluscs.•ncRNAs play crucial roles in variety of biological process in molluscs.•This work will pave the future path towards a complete ...understanding of the epigenetic regulatory network of molluscs.
This review focus on the current knowledge of non-coding RNAs (ncRNAs) in molluscs. In this review, we provide an overview of long ncRNAs (lncRNA), microRNAs (miRNA) and piwi-interacting RNAs (piRNA), followed by evidence for the regulation of ncRNAs in variety of biological process in molluscs, including development, biomineralization and innate immune response. This review advances our understanding on the roles of ncRNAs in molluscs and suggest the future direction to fully understand the epigenetic regulatory network of molluscs.
Polyethylene-
-polypeptide copolymers are biologically interesting, but studies of their synthesis and properties are very few. This paper reports synthesis and characterization of well-defined ...amphiphilic polyethylene-
-poly(L-lysine) (PE-
-PLL) block copolymers by combining nickel-catalyzed living ethylene polymerization with controlled ring-opening polymerization (ROP) of ε-benzyloxycarbonyl-L-lysine-
-carboxyanhydride (Z-Lys-NCA) and sequential post-functionalization. Amphiphilic PE-
-PLL block copolymers self-assembled into spherical micelles with a hydrophobic PE core in aqueous solution. The pH and ionic responsivities of PE-
-PLL polymeric micelles were investigated by means of fluorescence spectroscopy, dynamic light scattering, UV-circular dichroism, and transmission electron microscopy. The variation of pH values led to the conformational alteration of PLL from α-helix to coil, thereby changing the micelle dimensions.
The High‐Dynamic enhanced Loran (eLoran) signal simulator must accurately model the motion parameters and dynamic transmission delays of the carriers in the channel. A method was proposed based on ...B‐Spline interpolation, capable of arbitrary ratio interpolation and multi‐channel simulation. This method can regenerate carrier‐to‐transmitter distances from available discrete motion asynchronous data, it can effectively reproduce more motion details for carrier. The algorithm can be implemented using digital circuits, allowing for real‐time simulation on a hardware platform. The circuit structure is divided into integer and fractional calculations, which can satisfy the interpolation of asynchronous data with arbitrary ratios. Compared with existing methods, the approach simulates the motion parameters with satisfactory accuracy.
(1) A pseudorange reconstruction algorithm for High‐Dynamic signal Simulator. Highly dynamic simulators require reconstructed data and must simulate signal carrier motion in different environments. The authors propose a method of reconstruction by spline interpolation, an algorithm that balances the accuracy and feasibility of interpolation. (2) A circuit structure for real‐time simulation on hardware platforms. We have designed a simulation architecture for hardware platforms that can satisfy real‐time simulation characteristics and accommodate the reconfiguration of asynchronous data with arbitrary ratios.
