精准辅导答疑在骨干教师教学激励计划中的实践研究

将习近平总书记“精准扶贫” 的重要思想应用于高等学校教学辅导答疑工作中, 明确了高校教师辅导答疑工 作的目的、内容和措施。针对大学生在学习、生活过程中遇到的各种问题以及个性化需求, 将辅导答疑的类型分成 5 种形式, 实施精准辅导答疑, 提高人才培养质量。     

澳大利亚“基于能力本位的评估”模式及对我国高职教育 质量评估的启 示

澳大利亚职业教育在全球享有较高的声誉,这与其坚持严格的"基于能力本位的评估"(competency based assessment, CBA)密不可分。介绍了澳大利亚CBA的内涵特征,并详细描述"准备评估、开发评估工具、开展评估、对评估结果进行评估"的CBA运作过程,关注评估工具的开发和后续常规系统性检查及完善,以期对我国的高等职业教育质量评估起到启示和借鉴作用。     

Labour mobility between cities and metropolitan integration: The role of high speed rail commuting in Spain

Although the link between transport accessibility and the regional and local scope of labour markets has been widely studied in the literature, high speed rail (HSR) commuting is a relatively new user behaviour and little research has been done to date on labour migration derived from inter-regional HSR commuting. This paper contributes to the limited existing literature by analysing the evolution of the impact of HSR on labour markets in commuting relations. The added value of this research is that it is the first assessment of a panel data regression analysis taking account of HSR as a variable and using labour inter-regional mobility data (2002–2014). The model has been validated using the HSR commuting areas that converge in the metropolitan areas of Madrid, Barcelona, Seville and Malaga.Results have highlighted the complexity of the variables involved in the decision to commute by HSR. This complexity is linked to the causal relations between the most representative variables, namely unemployment rates and housing prices, which are more difficult to study during periods of economic crisis. The location of the HSR station has been revealed as a key indicator, and is even more significant (in the case of the Madrid functional area) than the actual availability of the HSR commuting services.     

多场耦合下微波碳热氯化回收铟的动态仿真

以实验室微波反应器为研究对象,基于有限元软件COMSOL Multiphysics,采用多场耦合方法对微波强化碳热氯化回收In Cl3的反应过程进行了动态仿真,并分析了其影响因素。结合微波加热过程、计算流体力学和物质传输过程,建立了由射频、传热、传质和流场4个物理场耦合的数学物理模型。通过考察腔室内的电场强度,得到微波加热过程的热源项与样品体的温度分布。结果表明,本研究模型能够准确描述微波输入功率、HCl通入浓度等多因素对铟化物回收过程的影响,为微波碳热氯化提铟过程的分析提供新的方法与依据。     

Advanced multifunctional graphene aerogel – Poly (methyl methacrylate) composites: Experiments and modeling

In this work, graphene aerogel (GA)–poly (methyl methacrylate) (PMMA) composites are first developed by backfilling PMMA into the pores of the GAs, providing uniform distribution of multi-layer reduced graphene oxide (m-rGO) sheets in the PMMA matrix. Electrical, mechanical and thermal properties of the as-prepared GA–PMMA composites are investigated by two-probe, microindentation and comparative infrared techniques respectively. As graphene loadings increase from 0.67 to 2.50 vol.%, the composites exhibit significant increases in electrical conductivity (0.160–0.859 S/m), microhardness (303.6–462.5 MPa) and thermal conductivity (0.35–0.70 W/m K) from that of pure PMMA as well as graphene–PMMA composites prepared by traditional dispersion methods. Thermal boundary resistance between graphene and PMMA is estimated to be 1.906 × 10⁻⁸ m² K/W by an off-lattice Monte Carlo algorithm that takes into account the complex morphology, size distribution and dispersion of m-rGO sheets.     

Enhanced methanol oxidation on PtNi nanoparticles supported on silane-modified reduced graphene oxide

Developing low cost, highly efficient, and long-term stability electrocatalysts are critical for direct oxidation methanol fuel cell. Despite huge efforts, designing low-cost electrocatalysts with high activity and long-term durability remains a significant technical challenge. Here, we prepared a new kind of platinum-nickel catalyst supported on silane-modified graphene oxide (NH₂-rGO) by a two-step method at room temperature. Powder X-ray diffraction, UV–vis spectroscopy, Raman, FTIR spectroscopy and X-ray photoelectron spectroscopy results confirm that GO was successfully modified with 3-aminopropyltriethoxysilane (APTES), which helps to uniformly disperse PtNi nanoparticles. Cyclic voltammetry, chronoamperometry, CO-stripping and rotating disk electrode (RDE) results imply that PtNi/NH₂-rGO catalyst has significantly higher catalytic activity, enhance the CO toxicity resistance, higher stability and much faster kinetics of methanol oxidation than commercial Pt/C under alkaline conditions.     

谈现代纤维艺术与后现代建筑实践的相互影响

现代纤维艺术通过"从洛桑到北京"的两次转型,完成了纤维艺术从"壁毯艺术"到"现代纤维艺术"的转型,当代纤维艺术已不仅是一个与绘画、雕塑等传统项目平行的艺术门类,而更像一个包容性极强的艺术平台,很多既有的艺术形式包含后现代建筑都可以与之交汇并诞生新的意义,进而不断丰富这些优美而独立的艺术语言。     

上海市生活垃圾废塑料回收再利用现状及优化策略

在生活垃圾分类背景下上海市可回收物回收体系逐步完善, 生活源废塑料回收再利用量获得极大提升。通过现场调研与统计资料分析, 对当前上海市生活垃圾废塑料分类回收现状、再利用技术进行分析梳理, 结果显示当 前生活垃圾废塑料回收类别以PET、PP 为主, 分别占总回收量的45.3% 和30.7%; 另有近30% 具有回收价值的废塑料未被回收, 主要以PP 和PET 为主。在此基础上, 提出需进一步完善分类回收标准与补贴政策、推动PET 同级利 用等回收技术创新、强化宣传教育与主体监管等优化策略, 以期促进废塑料回收与再利用行业进一步发展。