小团体队形编排在高校健美操教学考核中的实验研究

运用实验法、文献资料法、问卷调查法等研究方法,对高校健美操"小团体队形编排"教学考核方法与传统的健美操教学考核方法进行分析比较。结果表明,"小团体队形编排"考核方法有效地活跃了课堂气氛,促进了技术动作的学习,增加了课堂练习的密度,加强了师生、生生相互间的交流,培养了学生的团队意识,有效地改变纯技术教学的现状,加强了学生创造性思维的锻炼。     

低光照强度下氧化石墨烯-g-C3N4/PVDF膜的光催化降解性能研究

基于π-π非共价掺杂的原理,采用半封闭高温烧结法制备了GO/g-C3N4。结构分析表明,GO与g-C3N4发生了相互作用。考察了GO引入前后g-C3N4在低光照强度下紫外光降解甲基橙的光催化活性。结果表明,掺杂适量的GO能够提高g-C3N4的光催化活性,当烧结温度为500℃、GO掺杂量为0.5wt%,热解温度为500℃时光催化降解率最高,达到39.50%。     

Simple Raman scattering sensor integrated with a metallic planar optical waveguide: effective modulation via minor structural adjustment

We report experimental realization of Raman spectra enhancement of copper phthalocyanine, using an on-chip metallic planar waveguide of the sub-millimeter scale. The oscillating ultrahigh order modes excited by the direct coupling method yield high optical intensity at resonance, which is different from the conventional strategy to create localized "hot spots." The observed excitation efficiency of the Raman signal is significantly enhanced,owing to the high Q factor of the resonant cavity. Furthermore, effective modulation of the Raman intensity is available by adjusting the polymethyl methacrylate(PMMA) thickness in the guiding layer, i.e., by tuning the light–matter interaction length. A large modulation depth is verified through the fact that 10 times variation in the enhancement factor is observed in the experiment as the PMMA thickness varies from 7 to 23 μm.     

科学育人才 管理出效益——记桐乡市山河镇重人才结硕果

山河镇地处杭嘉湖腹地。虽属鱼米之乡。但长期交通闭塞,信息受阻,观念阵旧,经济发展速度缓慢。近年来,该镇党委、政府和工业主管部门遵循小平同志“科技是第一生产力”的英明论断,凭借国家政策优势。在工业生产领域内大掀科技春风,得意企业经营,生产科技之树花红果硬,经济建设如虎添翼。 该镇总人口为2.85万名,面积39平方公里,现有建材为基础,轻纺为龙头的镇村二级工业企业87家,其中县市重点骨干企业12家,省重点骨干、明星企业3家,固定资产23636万元,职工总人数13071名。生产的主要产品有丝绸、皮装、水泥、红砖、绢丝、绢绸、化工、印染、