校本视域下农科学生“形势与政策”课实效性探索

高校“形势与政策”课在为我国培养卓越农林人才方面起着举足轻重的作用,做好农科学生“形势与政策”课实效性校本教研,不仅能深化思政理论研究,同时能强化思政课主渠道作用,更能契合高校农科发展。本文从校本教研出发,结合调研结果,探讨课程发展中的问题,分析校本教研对农科学生“形势与政策”课实效性的意义,提出若干农科学生课程实效性提升的探索性建议,旨在对实际教研工作有所裨益。     

基于微课的大学日语翻转课堂教学模式研究

高校日语传统教学中以教师教授为主,存在学生日语操练不足、学习效果一般、积极性不高、个性化需求无法满足等问题。随着科技和信息技术的发展,新的教学理念和教学模式不断被提出和验证,为高校日语教学改革提供了新思路。作为全球教育界最为关注的两种教学模式,“翻转课堂”和“微课”已经取得了国内外较多的研究成果和教学效果。本文旨在研究在高校日语课程教学中采用基于微课的翻转课堂教学新模式。通过在教学改革中对新模式的应用,提高大学生日语学习的自主性和积极性,同时满足个性化学习需求和课程教改需求。     

Paving the road toward the use of β-Fe2O3 in solar water splitting: Raman identification,phase transformation and strategies for phase stabilization

Although β-Fe₂O₃ has a high theoretical solar-to-hydrogen efficiency because of its narrow band gap, the study of β-Fe₂O₃ photoanodes for water splitting is elusive as a result of their metastable nature. Raman identification of β-Fe₂O₃ is theoretically and experimentally investigated in this study for the first time, thus clarifying the debate about its Raman spectrum in the literature. Phase transformation of β-Fe₂O₃ to α-Fe₂O₃ was found to potentially take place under laser and electron irradiation as well as annealing. Herein, phase transformation of β-Fe₂O₃ to α-Fe₂O₃ was inhibited by introduction of Zr doping, and β-Fe₂O₃ was found to withstand a higher annealing temperature without any phase transformation. The solar water splitting photocurrent of the Zr-doped β-Fe₂O₃ photoanode was increased by 500% compared to that of the pure β-Fe₂O₃ photoanode. Additionally, Zr-doped β-Fe₂O₃ exhibited very good stability during the process of solar water splitting. These results indicate that by improving its thermal stability, metastable β-Fe₂O₃ film is a promising photoanode for solar water splitting.     

Large-scale multiferroic complex oxide epitaxy with magnetically switched polarization enabled by solution processing

Complex oxides with tunable structures have many fascinating properties, though high-quality complex oxide epitaxy with precisely controlled composition is still out of reach. Here we have successfully developed solution-based single-crystalline epitaxy for multiferroic (1-x)BiTi_(1-y)/2Fe_yMg_(1-y)/2O₃–(x)CaTiO₃ (BTFM–CTO) solid solution in large area, confirming its ferroelectricity at the atomic scale with strong spontaneous polarization. Careful compositional tuning leads to a bulk magnetization of 0.07 ± 0.035 μ_B/Fe at room temperature, enabling magnetically induced polarization switching exhibiting a large magnetoelectric coefficient of 2.7–3.0 × 10⁻⁷ s/m. This work demonstrates the great potential of solution processing in large-scale complex oxide epitaxy and establishes novel room-temperature magnetoelectric coupling in epitaxial BTFM–CTO film, making it possible to explore a much wider space of composition, phase, and structure that can be easily scaled up for industrial applications.     

浅谈现代信息技术与学科整合

现代信息技术与教学活动的整合,就是把以网络技术为核心的现代教育技术运用到具体的教育教学活动中去,把现代教育技术作为教育教学活动的指导理论,把网络技术作为活动的认知工具、研究工具、展示工具,进而培养学生创新精神和实践能力.     

副校长的"八要""八不要"

副校长既是校长的参谋和助手,又是学校某方面工作的直接领导者和责任人。在工作中,副校长是校长和职能部门管理人员联系的桥梁和纽带,具有承上启下的作用。副校长的领导作用发挥得如何,直接影响着学校领导班子集体领导的效能。副校长要演好这一角色,使自己成为一名优秀的学校管     

基于ICWGT和灰色关联分析法的起重机安全评价

针对目前起重机安全评价过于依赖主观权重且忽视起重机安全状态变化趋势的问题,建立基于改进博弈论组合赋权法（improved combination weighting method of game theory,ICWGT）和灰色关联分析法的起重机安全评价体系。在该评价体系中,收集样本数据以确定评价值,构建评价等级空间来计算起重机行为特征序列与标准行为特征序列的关联系数。运用ICWGT在层次分析法和信息熵 未确知测度理论确定的主、客观权重中寻找平衡。充分考虑专家经验和样本数据,确定优化权重以改善关联系数的分配问题,从而获取起重机灰色关联度评价值和安全等级,旨在对起重机安全状态变化趋势进行更加准确的定量描述和定性分析。实例分析验证了该评价体系的有效性。     

Recent Advances in Constructing Interfacial Active Catalysts Based on Layered Double Hydroxides and Their Catalytic Mechanisms

The interaction between the metal and the support of supported metal catalysts, which are widely used in industry, is the primary focus of the study of such cat...     

试论中国当代水彩画

本文论述了当前我国水彩画所取得的辉煌成就,以及它在中国快速发展的重要因素,并就水彩画在我国的发展前景做出了客观分析、科学的推论。     

建设体育强国背景下体育经济重要地位及其发展策略

加快体育强国建设已成为一项国策,研究如何提高和建设可持续发展性的体育产业经济以解决人民日益增长的美好体育生活需要和不平衡不充分的发展之间的矛盾对建设体育强国具有重要意义。采用哲学辩证理论分析体育产业经济对体育强国构建的重要性,统计分析目前我国体育产业经济发展现状及其与发达国家的差距,结合十九大新时代背景下给出未来体育产业经济发展策略以期寻求为构建体育强国给出一些指导意见。认为：体育经济是体育强国的重要基石;开展全民健身运动、优化体育产业结构、政府政策导向市场化、跨产业融合增加与其他产业的结合度对构建体育强国具有重要的意义。