Exploration of the Current Situation and Mechanism Innovation of University Education Management under the New Situation

In the new era,university education management should be oriented toward the cultivation of innovative talents and the construction of a comprehensive education system.It should develop capable and qualified higher-level talents in response to the social demand for talent application,thereby enhancing the overall educational competitiveness of universities and driving deep reforms in educational activities.However,in current educational practice,efficient educational management often focuses on curriculum development and cultural education,with insufficient attention paid to the development of students’comprehensive literacy.The talent cultivation and education programs are not yet perfect.This article explores the current situation of university education management activities under the new situation and considers practical methods for innovating university education management mechanisms.

Modified Nitrogen-Doped Graphene Electrocatalyst for Oxygen Reduction Reaction in Alkaline Fuel Cells

We report modified nitrogen-doped graphene （CN） as electrocatalyst for ORR （oxygen reduction reaction） in alkaline medium. CN was synthesized by a novel procedure based on graphite oxide thermally treated with cyanamide suitable for facile N-doping and large-scale production, whereas cyanamide was used as N-precursor. The structure of the material was characterized by TEM （transmission electron microscopy）, SEM （scanning electron microscopy）, Raman spectroscopy and XPS （X-ray photoelectron spectroscopy）. Structural and electrochemical properties of CN were compared with those of non-modified graphene （TRGO （thermally reduced graphite oxide））. The electrochemical characterization of TRGO and CN in alkaline solution demonstrates enhanced electrocatalytic ORR activity and improved long-term stability for N-doped CN. Voltammetric studies confirmed that, oxygen reduction on CN rather follows four-electron pathway. Compared with commercial 20% PtC catalyst, CN is characterized by exceptional methanol crossover resistance and superb long-term operation stability. Owing to these factors, nitrogen-doped graphene has a great potential to be used as metal-free electrocatalyst in cathodes of alkaline fuel cells.

Transmembrane transport of multicomponent liposome-nanoparticles into giant vesicles

With the emergence and rapid development of nanotechnology,the nanoparticles hybridized with multicomponent lipids are more and more used in gene delivery.These vectors interact with the cell membrane before entering into the cell.Therefore,the nature of this interaction is important in investigating multicomponent liposome-nanoparticle(MLP)transport across the cell membrane.In this paper the transport of MLPs across the membranes of giant vesicles(GVs)in solvents is studied by using the self-consistent field theory(SCFT).Based on the analysis of the MLP permeating the GV membranes,a simple transport model is proposed.The effects of the difference in membrane morphology and the size of the nanoparticle on the endocytosis are discussed systematically.The role of energy barriers in quasi-equilibrium is also examined.The results indicate that the interaction between MLP and GV is a spontaneous process and the energy barrier needs overcoming to form metastable intermediates.The results provide theoretical reference for better understanding the transmembrane transport process of nanoparticles,and guidance for relevant experimental studies as well.