The design of multicomponent core–shell heterostructures is considered to be an efficacious way to develop excellent performance supercapacitor electrode materials. A new strategy CePO4@CuCo2S4 core–shell heterogeneous structure is devised by preparing porous CePO4 nanosheets as cores via hydrothermal reaction and solid-state phosphating methods and electrochemically deposited CuCo2S4 nanosheets as shells. Binder-free three-dimensional (3D) porous CePO4@CuCo2S4 nanosheets grown on foam nickel substrate can provide an ordered porous nanoframe, promote electrode/ion transport, and generate the effective synergy of good conductivity from CePO4 and excellent redox activity from CuCo2S4. As a consequence, the CePO4@CuCo2S4 electrode exhibits an outstanding specific capacitance (2897.8 F g–1 at 0.5 A g–1), a superb capacity retention rate (70.1% at 20 A g–1), and excellent cycle stability (after 10,000 cycles or maintain 94.4%), superior to those of bare CePO4 and CuCo2S4 electrodes. In addition, an asymmetric hybrid supercapacitor is assembled by CePO4@CuCo2S4 and activated carbon, when the energy density is 80.4 Wh kg–1 and the corresponding power density is 799.5 W kg–1.

The square kilometer array (KM2A) is the main array of the Large High Altitude Air Shower Observatory (LHAASO), which is the most sensitive gamma-ray detector for energies above a few tens of TeV. We are developing a software pipeline based on the experimental data, Monte-Carlo simulations and the pointing track of the arrays. The pipeline is able to perform 3D (sky images at different energies) fits of KM2A data, similar to those used for Fermi-LAT and DAMPE gammaray analysis. This 3D likelihood analysis could fit source models of arbitrary morphology to the sky images, and get energy spectra information and detection significances simultaneously. The analysis with this software could give consistent results with those using traditional method.

Rotator cuff injury is the most common muscle injury in bone surgery and there was still enormously challenging to completely repair it. Disturbed by mechanical stability and biocompatibility, most implants have failed to relieve symptoms and prevent the development of osteoarthritis. Herein, we have firstly fabricated novel electrospinned nanofiber membranes by integrating the excellent mechanical properties of polyurethane (PU), the good biocompatibility of silk fibroin with the osteogenesis properties of bioactive glass (PSB). The obtained results have exhibited that the PSB nanofiber film possessed excellent mechanical properties with the tensile stress have reached 14.6 MPa and the tensile strain reached 70%, which had extremely remedied the properties of pure silk film (3.8 MPa and the tensile strain 7.9%). Especially, PSB has shown superior hydrophilicity (WCA) than silk (WCA) and PU (WCA) groups.Furthermore, we have endowed the PSB with osteogenesis by doping bioactive glass (BG) in it. The PSB film can long-term release functional ions (Si and B ions) that benefit bone tissue repair, and the CCK-8 and ALP results have also confirmed the excellent biocompatibility and osteogenesis of PSB. Hence, the novel PSB film may provide a new treatment strategy for repairing rotator cuff injury.

a method of combining the support vector machine and the intelligent algorithm to perform reliability analysis on large span cable-stayed bridges was proposed in this paper. The algorithm is verified by an example, which shows that the algorithm has higher precision and can be extended to the actual project. Therefore, this paper takes Jiangmen North Street Waterway Bridge as the engineering background, uses the finite element software ANSYS to establish the cable-stayed bridge model and MATLAB software to compile the intelligent algorithm and data processing. It mainly analyzes the reliability of the main beam mid-span deflection, the cable stress and main tower stress of the North Street Waterway Bridge. Finally, the general limit range method is used to estimate the reliability index of the North Street waterway bridge structure system. The results show that the cable stay failure has the greatest impact on the reliability of the entire structural system, so it is necessary to pay attention to the maintenance and monitoring of stay cables.

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