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In order to improve the wear resistance and high temperature oxidation resistance of TC11 titanium alloy，Nd2O3 particle-doped micro-arc oxidation coatings were prepared by adding different concentrations of Nd2O3 particles.The effect of Nd2O3 concentration on the microstructure and phase composition of micro-arc oxidation coatings on TC11 titanium alloy was studied by scanning electron microscope and X-ray Diffractometer.Meanwhile，the wear resistance and high temperature oxidation resistance of the coating was evaluated.Results showed that after adding Nd2O3 particles，the number of micropores on the surface of the coating decreased，and the coating phase was mainly rutile TiO2 and anatase TiO2.With the increase of Nd2O3 concentration，the content of Nd element in the coating gradually increased，and the coating thickness first increased and then decreased.When the concentration of Nd2O3 was 1 g/L，the comprehensive performance of the prepared micro-arc oxidation coating was the best，which possessed the average thickness of 8.68 μm，the wear loss of 0.43 mg，the wear scar width of 598.04 μm，and the high temperature oxidation weight gain of 0.139 mg/cm2.Compared with the TC11 titanium alloy and the sample without adding Nd2O3 particles，the high temperature oxidation resistance of the micro-arc oxidation coating was significantly improved after adding 1 g/L Nd2O3 particles，and the wear resistance decreased compared with that without adding Nd2O3 particles.

In the era of big data, China’s labor model spirit should not only continue the essence of the past but also show the connotation and practical orientation of the new era. This paper summarizes the dilemmas of teachers’ literacy improvement under the new requirements and proposes a mechanism for improving teachers’ literacy in colleges and universities based on the spirit of model workers. A provincial university was selected as the research subject. Questionnaires were distributed online and offline, and the recovered questionnaires were reviewed and rejected to obtain relevant research data. Pearson’s correlation coefficient and linear regression model were respectively used to empirically analyze the proposed mechanism above. After analysis, the mean value of the implication mechanism, conduction mechanism, feedback mechanism, and safeguard mechanism are all greater than 3, and all of them have a significant correlation with teacher literacy, P

Thin sandstone reservoirs of the fan delta front sub-facies occur in the early Neogene (Miocene) series of the Aketao (Akto) structural belt within the Kunlun piedmont zone of the Tarim Basin. Oil and gas reservoirs in this area correspond to stratigraphic traps. However, owing to the low density of the 2D seismic survey grid deployed in the Aketao belt, inferior seismic data quality, and lack of well logging data, reservoir prediction in this area suffers from a multiplicity of problems and it is difficult to effectively identify sand bodies. Here, a new research approach is proposed involving the use of 3D seismic, well logging, and drilling data from a neighboring highly-explored 3D seismic survey area as a reference for the 2D seismic interpretation of the non-drilled Aketao survey area. Moreover, this approach is integrated with forward modeling and the inversion of post-stack seismic data to identify sand bodies. A comparison of the seismic reflection characteristics clarifies that these 3D and 2D seismic survey areas share similar sedimentary environments. Forward modeling confirms their similar reservoir characteristics, while the reservoir distribution in the 2D seismic survey area is effectively mapped via the inversion. The results show that for a 2D seismic survey area characterized by a low degree of hydrocarbon exploration and appraisal, and a lack of well logging data, the proposed approach can confirm the sedimentary characteristics that correspond to the seismic reflection characteristics, and can quantitatively map the reservoir thickness.

The petal blight disease of alpine Rhododendron severely impacts the ornamental and economic values of Rhododendron. Plant secondary metabolites play a crucial role in resisting pathogenic fungi, yet research on metabolites in alpine Rhododendron petals that confer resistance to pathogenic fungi is limited. In the present study, the secondary metabolites in Rhododendron delavayi, R. agastum, and R. irroratum petals with anti-pathogenic activity were screened through disease index analysis, metabolomic detection, the mycelial growth rate, and metabolite spraying experiments. Disease index analysis revealed that R. delavayi petals exhibited the strongest disease resistance, while R. agastum showed the weakest, both under natural and experimental conditions. UHPLC-QTOF-MS/MS analysis identified 355 and 274 putative metabolites in positive and negative ion modes, respectively. The further antifungal analysis of differentially accumulated baicalein, diosmetin, and naringenin showed their half-inhibitory concentrations (IC50) against Neopestalotiopsis clavispora to be 5000 mg/L, 5000 mg/L, and 1000 mg/L, respectively. Spraying exogenous baicalein, diosmetin, and naringenin significantly alleviated petal blight disease caused by N. clavispora infection in alpine Rhododendron petals, with the inhibition rates exceeding 64%. This study suggests that the screened baicalein, diosmetin, and naringenin, particularly naringenin, can be recommended as inhibitory agents for preventing and controlling petal blight disease in alpine Rhododendron. [ABSTRACT FROM AUTHOR]

Exploring efficient and robust self‐supporting hydrogen evolution reaction (HER) electrodes using simple, accessible, and low‐cost synthetic processes is crucial for the commercial application of water electrolysis at high current densities. Ni‐based self‐supporting electrodes are widely studied owing to their low cost and good catalytic performance. However, to date, the preparation of Ni‐based electrodes requires multistep and complex preparation processes. In this study, a novel one‐step in situ sintering method to synthesize mechanically stable and highly active Ni3Se2‐Ni electrodes with well‐controlled morphologies and structures is developed. Their excellent performance and durability can be attributed to the numerous highly active nano‐Ni3Se2 catalysts embedded on the surface of the Ni skeleton, the excellent conductivity of the interconnected conductive network, and the strong interfacial bonding between Ni3Se2 and Ni. As a result, the Ni3Se2‐Ni600 electrode can operate stably at 85 and 400 mA cm−2 for more than 800 and 300 h, respectively. Moreover, the Ni3Se2‐Ni600 electrode displays outstanding stability for over 500 h in a commercial two‐electrode system. This study provides a feasible one‐step synthesis method for low‐cost, high‐efficiency metal selenide‐metal self‐supporting electrodes for water electrolysis. [ABSTRACT FROM AUTHOR]

A phenyl-based monolithic adsorbent was prepared in a 50-mm-long stainless steel tube, which was initiated by the redox system, using ethylene glycol phenyl ether acrylate as the monomer and ethylene glycol dimethacrylate as the crosslinker. The effects of monomer/crosslinker ratio and the porogens on the permeability and morphology of the resulting adsorbents were investigated, and the optimal adsorbent shows relatively uniform pore structure according to the characterizations of scanning electron microscopy and nitrogen adsorption–desorption method. The column that filled with the adsorbent was used as the solid-phase extraction (SPE) cartridge, exhibiting unique selectivity for the extraction of evodiamine from Euodia fructus (the fruits of Euodia rutaecarpa (Juss.)Benth.), which attributes to the interactions of π-π and hydrogen bonding between the adsorbent and evodiamine. Combined with a C18 analytical column via high-performance liquid chromatography (HPLC) system, an online SPE-HPLC method was established for extraction, enrichment and determination of evodiamine from Euodia fructus. Method validation demonstrates that the relative standard deviation of the precision is less than 0.66%, and the spiked recovery is in the range of 93.11–98.06%. Furthermore, it is worth noting that the prepared SPE cartridge can be reused for no less than 100 times. These results show that the developed method is simple and efficient for online extraction and enrichment of evodiamine from Euodia fructus. [ABSTRACT FROM AUTHOR]