试论中职体育如何体现职业特色

体育教育是中等职业教育的重要组成部分,对培养学生较强的综合身体素质和良好的健身习惯起着非常重要的作用。同时中职体育还肩负着为专业课提供专项运动能力保障的职责,因此,将专业需求与体育相结合,在体育教育中体现职业特色是我们改革发展的方向。本文从中职体育的现状及存在的问题、中职体育教学改革发展策略、进行体育特色改革面临的困难及应对措施几个方面进行了探讨。     

浅析简·奥斯丁《劝导》中女主人公安妮·埃利奥特

简·奥斯丁是19世纪初期英国著名的女性作家《劝导》是其最后也是最好的一部小说。作者通过对女人公安妮·埃利奥特的爱情与婚姻的描写,表现出自己的成熟和发展。     

关于体育院校学生思想品德教育工作的创新

体育院校学生的思想品德工作有其特殊性,如何确保教育工作卓有成效成为当前研究的重点问题。本文首先分析体育院校学生思想品德教育工作的现状,明确存在的主要问题,然后探讨思想品德教育工作创新的方向,并具体规划实践举措,以期为今后的工作提供帮助。     

向内探索自己

诗发自心灵,诗人必然走向自己内心的探索之路,以塑造一个理情与感情相兼容的精神世界。     

翻译过程中的中介语发展特点及规律研究

中介语是用来描述介于二语学习者母语与目的语之间的一种非连续性的语言体系,目前在二语习得研究中日益受到关注。文章以我国英语专业学习者中介语的翻译语料为基础,以学习者中介语的语篇、语用、学习策略等为研究本体,通过多种形式,系统地研究并揭示汉英中介语在英语学习者提高翻译技能的过程中所体现出的发展规律及其影响作用。     

Three-dimensional cellular focusing utilizing a combination of insulator-based and metallic dielectrophoresis

Particle focusing in microfluidic devices is a necessary step in medical applications, such as detection, sorting, counting, and flow cytometry. This study proposes a microdevice that combines insulator-based and metal-electrode dielectrophoresis for the three-dimensional focusing of biological cells. Four insulating structures, which form an X pattern, are employed to confine the electric field in a conducting solution, thereby creating localized field minima in the microchannel. These electrodes, 56-μm-wide at the top and bottom surfaces, are connected to one electric pole of the power source. The electrodes connected to the opposite pole, which are at the sides of the microchannel, have one of three patterns: planar, dual-planar, or three-dimensional. Therefore, low-electric-field regions at the center of the microchannel are generated to restrain the viable HeLa cells with negative dielectrophoretic response. The array of insulating structures aforementioned is used to enhance the performance of confinement. According to numerical simulations, three-dimensional electrodes exhibit the best focusing performance, followed by dual-planar and planar electrodes. Experimental results reveal that increasing the strength of the applied electric field or decreasing the inlet flow rate significantly enhances focusing performance. The smallest width of focusing is 17 μm for an applied voltage and an inlet flow rate of 35 V and 0.5 μl/min, respectively. The effect of the inlet flow rate on focusing is insignificant for an applied voltage of 35 V. The proposed design retains the advantages of insulator-based dielectrophoresis with a relatively low required voltage. Additionally, complicated flow controls are unnecessary for the three-dimensional focusing of cells.     

组织忘却学习如何影响绩效：基于元分析的证据

利用元分析方法对国内外43篇组织忘却学习与绩效关系的实证研究进行分析,并探讨测量维度、地区文化和中介变量等因素是否会影响二者关系.研究结果表明,组织忘却学习与绩效显著正相关,测量维度、地区文化和中介变量对二者关系有显著的影响,在单维度测量、东方文化背景下或有中介变量存在时,组织忘却学习与其绩效的相关程度更高.     

舟山某海域海上自升式平台桩基稳定性研究

地基承载力和地基沉降分析对自升式海洋平台安全作业极为重要.以舟山某海域自升式海洋平台为研究对象,分别采用理论分析和数值模拟的方法对不同入泥深度的桩靴地基承载力和沉降进行计算分析,并开展桩靴几何尺寸对地基承载力影响的敏感度分析.研究结果表明:(1)采用《海洋井场调查规范》理论分析和FLAC3D数值模拟所得到的桩靴安全插桩深度分别为15 m和14 m,结果接近.(2)采用《建筑地基基础设计规范》和FLAC3D数值模拟得到的地基沉降量分别为335.61 mm和260.55mm,相差约28.8％.(3)方形桩靴的长度对地基承载力的影响最大,桩靴长度增加11％,相应的地基承载力增加27％,桩靴高度和桩腿直径对地基承载力影响可以忽略不计.     

Inertial microfluidics in contraction–expansion microchannels: A review

Inertial microfluidics has brought enormous changes in the conventional cell/particle detection process and now become the main trend of sample pretreatment with outstanding throughput, low cost, and simple control method. However, inertial microfluidics in a straight microchannel is not enough to provide high efficiency and satisfying performance for cell/particle separation. A contraction–expansion microchannel is a widely used and multifunctional channel pattern involving inertial microfluidics, secondary flow, and the vortex in the chamber. The strengthened inertial microfluidics can help us to focus particles with a shorter channel length and less processing time. Both the vortex in the chamber and the secondary flow in the main channel can trap the target particles or separate particles based on their sizes more precisely. The contraction–expansion microchannels are also capable of combining with a curved, spiral, or serpentine channel to further improve the separation performance. Some recent studies have focused on the viscoelastic fluid that utilizes both elastic forces and inertial forces to separate different size particles precisely with a relatively low flow rate for the vulnerable cells. This article comprehensively reviews various contraction–expansion microchannels with Newtonian and viscoelastic fluids for particle focusing, separation, and microfluid mixing and provides particle manipulation performance data analysis for the contraction–expansion microchannel design.     

我国文化创意产业知识产权政策文本量化分析

梳理文化创意产业知识产权政策发展历程,探析演变规律,总结发展趋势,运用文本量化方法,对我国2004-2019年393项与文化创意产业知识产权相关的政策进行词频分析、社会语义网络分析、聚类分析和政策空间分布分析.研究发现:文化创意产业知识产权政策的演化历程兼具稳定性和波动性;国家层面政策和地方层面政策之间既有联系也有差异;文化创意产业知识产权治理逐步从一元化走向多元化;政策主题逐渐丰富但聚合度较低,政策体系逐步完善;政策发展速度快,区域差异较大.