In this work, the composite structure of Li3V2(PO4)3 (LVP) nanoparticles with carbon nanofibers (CNF) is designed. The size and location LVP particles, degree graphitization diameter nanofibers, are optimized by electrospinning heat treatment. bicontinuous morphologies LVP/CNF dependent on carbonization PVP simultaneous growing LVP, fibers shrunk crystals grown toward outside. nanocystals clustered via guarantee improving diffusion ability Li(+), fiber simultaneously guarantees effective...

The foil winding temperature distribution is crucial to the life of power transformer since local heating can accelerate aging insulation materials. However, based on traditional 3-D electromagnetic model and principle heat transfer, non-uniform losses windings are difficult estimate because complex magnetic leakage flux. In this paper, magneto-fluid-thermal coupling has been established calculate rise predict potential hotspots a simplified dry-type rated at 2500 kVA. Moreover, influence...

The Bethe equations for the periodic XXX and XXZ spin chains admit singular solutions, which corresponding eigenvalues eigenvectors are ill-defined. We use a twist regularization to derive conditions such solutions be physical, in case they correspond genuine of Hamiltonian.

Abstract This study investigates the damage mechanisms and characteristics of carbon fiber/polymethacrylimide (PMI) foam sandwich unmanned aerial vehicle (UAV) structures subjected to combined actions shock wave fragment impact loading through integrated theoretical analysis, experimental testing, numerical simulations. A approach was utilized approximate sequence interactions between fragments waves. The findings reveal that, in far‐field tests, UAV primarily suffers from fragments, with...

Abstract In order to increase the isotactic content of β‐nucleated polypropylene (β‐iPP) and decrease cost its production, investigation development novel highly efficient β‐nucleators are important issues. Nano‐CaCO 3 was used as a support prepare supported β‐nucleator, nano‐CaCO ‐supported calcium pimelate. Fourier transform infrared spectral analysis shows that an in situ chemical reaction takes place between pimelic acid. Differential scanning calorimetry results indicate crystallization...

To obtain isotactic polypropylene (iPP) nanocomposites with high β-crystal content, TMB5, calcium pimelate and supported on the surface of nano-CaCO3 were used as β-nucleating agent MWCNT filled β-nucleated iPP prepared. The effect different crystallization behavior morphology, melting characteristic content investigated by DSC, XRD POM. results indicated that addition increased temperature mainly formed α-crystal. can induce formation in nanocomposites. ability decreased increasing due to...

Prioritizing the development of public transport is an effective way to improve sustainability system. In recent years, bus passenger flow has been declining in many cities. How reform operating mode transportation system important issue that needs be solved. An autonomous modular (AMB) capable physical coupling and uncoupling flexibly adjust vehicle capacity as well provide high-quality service under unbalanced demand conditions. To promote AMB adoption reduce cost route, this paper...

For high-value use of recycled polyethylene terephthalate (r-PET) resource and simultaneous development high performance isotactic polypropylene (PP) materials, the blends r-PET with PP its compatibilized versions were prepared. PP-g-MA, POE-g-MA EVA-g-MA same functional group, as well their mixtures, used compatibilizer. The crystallization behavior, mechanical properties microphotographs r-PET/compatibilizer, r-PET/PP bleds characterized. results indicated that addition compatibilizer...

To investigate the nucleation of metal pimelate for isotactic polypropylene (iPP) crystallization, iPP filled with a series oxides and without on their surface was prepared. There chemical reaction between pimelic acid (PA) MgO, CaO, BaO or ZnO, but not TiO2. The corresponding formed by PA ZnO had different influence crystallization behavior melting characteristics iPP. Addition increased temperature mainly α-phase due to heterogeneous α-nucleation oxides. CaO could be easily changed into...

Effect of vanadium (V) on the solidification and homogenization behaviors in Inconel 718 alloy is investigated. V observed to evenly distribute dendritic interdendritic zones, slightly increase niobium (Nb) molybdenum (Mo) segregation coefficients. However, Laves phase volume fraction reduces from 2.3 0.4%, indicating that may effectively prevent precipitation phase. Homogenization results show diffusion coefficient Nb much higher V‐containing alloy, it takes fewer hours remove phase, which...