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The simple instalment of mobile charging piles benefits for its convenient layout, while dynamic arrangements of those charging piles through mobile mode make up for the insufficient number of fixed charging piles, which meets the growing charging demand under the increasing popularity of electric vehicles. According to the application requirements of mobile charging piles, CATIA software was used to model the structure, of which strength and reliability were analysed under four load conditions. Our results have demonstrated that the maximum deformation value of the structure is 3.07 mm, and the maximum stress is 134.41 MPa, which is within the safety range of the selected materials. In addition, the gravity centre of the charging pile is located at the bottom of the structure, and thus the stability meets the requirements. Taken together, our research provided a beneficial reference for future engineering practice.

Peculiar hierarchical microstructures in creatures inspire modern material design with distinct functionalities. Creatures can effortlessly construct sophisticated yet long‐range ordered microstructure across bio‐membrane through ion secretion and precipitation. However, microstructure biomimicry in current technology generally requires elaborate, point‐by‐point fabrication. Herein, a spontaneous yet controllable strategy is developed to achieve surface microstructure engineering through a natural surface phenomenon similar to ion secretion‐precipitation, that is, coupled dissolution‐precipitation. A series of hierarchical microstructures on mineral surfaces in fluids with tunable morphology, orientation, dimension, and spatial distribution are achieved by simply controlling initial dissolution and fluid chemistry. In seawater, long‐range ordered film of vertically aligned brucite flakes forms through interfacial dissolution, nucleation, and confinement‐induced orientation of flakes with vertically grown {110} plane, on the edge of which, fusiform aragonite epitaxially precipitates. With negligible initial surface dissolution, prismatic aragonite epitaxially grows on a calcite polyhedron‐packed surface. By tuning fluid chemistry, closely packed calcite polyhedron and loosely packed calcite micro‐pillars are engineered through rapid and retarded precipitation, respectively. Surprisingly, the spontaneously grown microstructures resemble those deliberately created by human or found in nature, and tremendously modulate surface functionality. These findings open new possibilities for facile and customizable engineering of microstructural surfaces, hierarchical heterostructures, and biomimetic materials. [ABSTRACT FROM AUTHOR]

In order to effectively protect the habitat of cranes, this study constructs an indicator evaluation system based on the ecology–economy–society complex system and adopts the comprehensive "entropy weight method and analytic hierarchy process" evaluation model and coupled coordination model to scientifically measure the degree of coordinated development of the EES system in Yancheng. Further, a negative binomial regression model based on LASSO was used to analyze the key factors affecting the habitat quality of red-crowned cranes, and a support vector regression model was used to predict the population size of the cranes. The results show that the degree of the coordinated development of the EES system exhibited a fluctuating upward phenomenon, and the population size of the cranes also had a similar evolutionary trend, which indicates that the interaction between the two was significant and that the degree of the coordinated development of the system had a positive impact on the quality of the habitat of the cranes. Three types of ecological indicators (normalized difference vegetation index, annual precipitation, and soil erosion area) and three types of social indicators (natural growth rate, rural Engel coefficient, and public library collection) are the key factors affecting the population size of the cranes. The prediction results of the support vector regression model showed that the population of the cranes showed a fluctuating upward trend during the prediction interval, with a maximum of 952 cranes and an overall growth rate of 69.70%. The population size of the cranes is related to human social activities and the surrounding ecological environment, and the main reason for the decline in the population size of the cranes is the destruction of the local vegetation cover by the rapidly growing population and frequent human activities. Therefore, to improve the habitat quality of the cranes, local government departments need to strengthen the publicity of wildlife conservation, reduce agricultural land reclamation and pesticide pollution, and promote the coordinated development of the EES system in the Yancheng area. [ABSTRACT FROM AUTHOR]

It is still a great challenge to increase both the active sites and charge separation of earth-abundant catalysts for efficient and durable photocatalytic CO2 conversion. To achieve these aims, we designed imine-linked covalent organic frameworks as the electron bridge that links the photocatalyst and robust metal active sites for photocatalytic CO2 reduction. When integrated with defective g-C3N4, the composite generated 37.3 μmol h−1 of CO with 98.8% selectivity over H2 evolution under visible light irradiation, which greatly outperformed other non-noble metal species as cocatalysts. Experimental and theoretical results demonstrated that the stabilized Co ions with a six-membered chelating structure effectively improved the collection of excited electrons and stability of the catalyst. This study provides a new protocol to improve CO2 photoreduction performance through coupling defect-modulated photocatalysts with bridging cocatalysts. [ABSTRACT FROM AUTHOR]

In this study, citric acid-modified chitosan (CAMC) is prepared by an acylation reaction to regulate the exothermic process occurring in cement hydration. The thermodynamic process of cement hydration is characterized by isothermal calorimetry. The effects of various CAMC contents of 0%, 0.2%, 0.4%, and 0.6% on the hydration process were systematically studied by X-ray diffraction (XRD), inductively coupled plasma emission spectroscopy (ICP–OES), and proton nuclear magnetic resonance (1H-NMR). The results show that the adsorption effect delays the dissolution of alite (C3S). The content of CAMC is shown to have a significant effect on the formation time and amount of ettringite (AFt), and the competitive adsorption relationship increases the concentration of Ca2+. The increases in Ca2+ and SO42- concentrations resulted in an increase in the AFt amount. With prolongation of the hydration, the capillary pores of the cement paste are transformed into gel pores, and the cement slurry exhibits a self-drying phenomenon. Designed and prepared citric acid modified chitosan. Adsorption delays the dissolution of C 3 S and the formation of hydrated products. Competitive adsorption increases calcium ion concentration. CAMC delays the formation of AFt and increases the amount of AFt formation. [ABSTRACT FROM AUTHOR]

Introduction: Fufang Xianzhuli (FXZL) Ye, a classical formula of traditional Chinese medicine, is composed of Succus Bambusae, Houttuyniae herba, Pinelliae Rhizoma, Zingiberis Rhizoma Recens, Eriobotryae Folium, Platycodonis Radix, and peppermint oil. For many years, FXZL has been primarily utilised in China to treat cough and phlegm. The chemical composition of FXZL has not been reported, which seriously affects the safety of the clinical application. Objective: To establish a systematic method for rapidly classifying and recognising the chemical constituents in the FXZL for the safety of the clinical application. Methods: An ultra‐high performance liquid chromatography coupled with quadrupole time‐of‐flight tandem mass spectrometry coupled with a three‐step data post‐processing strategy was developed to screen the chemical constituents of FXZL. Results: In this experiment, the diagnostic ions in FXZL were classified into six main compounds. A total of 106 compounds were unambiguously identified in FXZL based on their retention times, accurate masses, and tandem mass spectrometry data. These include 11 chlorogenic acids, three flavonoids, eight sesquiterpenoids, six organic acids, 65 triterpenoid saponins, and 13 other compounds. Conclusion: The chemical composition of FXZL was identified and summarised, providing useful information for quality control and a basis for further exploration of its active ingredients in vivo. An ultra‐high‐performance liquid chromatography coupled with quadrupole time‐of‐flight tandem mass spectrometry coupled with a three‐step data post‐processing strategy was developed to screen the chemical constituents of Fufang Xianzhuli (FXZL) Ye. A total of 106 compounds were unambiguously identified in FXZL based on their retention times, accurate masses, and MS/MS data. These include 11 chlorogenic acids, three flavonoids, eight sesquiterpenoids, six organic acids, 65 triterpenoid saponins, and 13 other compounds. [ABSTRACT FROM AUTHOR]

The model predictive control (MPC)-based asynchronous attack tolerant control scheme is investigated in this article for uncertain Markov jump cyber-physical systems (MJCPSs) under the Denial-of-Service (DoS) attack. To tackle the problem of the system running mode may not be observed in the control center, an asynchronous model predictive controller is proposed. Specifically, a dynamic controller, which can tune the performance online, is designed besides a traditional state feedback one. Even though such a combination may cause possible degradation of system performance, it can expand the initial feasible region and relieve the online computation burden efficiently. In addition, a decision variable is introduced to alleviate limitations on the feasible region generated by the constraints in the traditional MPC method. A series of solvable optimal problems are further constructed to achieve the desired performances. Finally, an application of the proposed method is given to demonstrate its effectiveness.