现阶段光伏电池等新式能源接入配网比例日益增高,单独优化分析独立变电站-能源中心系统(Substation-Energy Center System,SECC)不利于配网运行效率的提高以及光伏能源的消纳。论文建立了包含变电站、光伏电池和燃气轮机等能源供应的多...现阶段光伏电池等新式能源接入配网比例日益增高,单独优化分析独立变电站-能源中心系统(Substation-Energy Center System,SECC)不利于配网运行效率的提高以及光伏能源的消纳。论文建立了包含变电站、光伏电池和燃气轮机等能源供应的多能源中心协同配网运行优化模型。采用模糊C均值聚类处理光伏数据,得到聚合后光伏优化出力,提高了运行效率。文章重点讨论了变电站内温度控制和电动车管理模式对多SECC协同运行效率影响。增加了SECC单独运行模式的仿真,对比多SECC协同运行模式下配网经济运行效率。通过算例验证了所提模型的合理性,并提出了合理的建议。展开更多
The Vietnam International Trade Fair for Apparel,Textiles and Textile Technologies(VIATT)is poised to return to the Saigon Exhibition and Convention Center(SECC)from February 26-28,2026.Building on its second edition...The Vietnam International Trade Fair for Apparel,Textiles and Textile Technologies(VIATT)is poised to return to the Saigon Exhibition and Convention Center(SECC)from February 26-28,2026.Building on its second edition’s nearly 13-percent exhibitor growth,next year’s show floor will expand by 20 percent,from 15,000 to 18,000 square meters and cover the full area of Halls A and B.This includes new dedicated zones for apparel,fashion accessories,and textile chemicals and dyes,with the strategic growth underscoring Vietnam’s emergence as a vertically and horizontally integrated textile powerhouse.展开更多
目的:通过变性梯度凝胶电泳(denaturing gradient gel electrophoresis,DGGE)技术分析无龋(caries free,CF)儿童和重型早期婴幼儿龋(severe early childhood caries,SECC)儿童集合牙菌斑内细菌多样性的差异。方法:无龋儿童和SECC儿童各3...目的:通过变性梯度凝胶电泳(denaturing gradient gel electrophoresis,DGGE)技术分析无龋(caries free,CF)儿童和重型早期婴幼儿龋(severe early childhood caries,SECC)儿童集合牙菌斑内细菌多样性的差异。方法:无龋儿童和SECC儿童各34例,牙菌斑基因组DNA等量混合后,制备无龋和SECC儿童牙菌斑基因组库,进行全基因组放大。分别以放大前后的基因组为模板,PCR扩增16S rDNA的V2-V3区,DGGE分析,切取SECC样本的特异条带进行克隆、测序、核酸序列比对。结果:基因组在放大前后DGGE图谱一致,SECC组样本的条带数多于CF组的条带数。切取的SECC样本的4条特异条带测序后证实为3种未培养微生物和嗜沫嗜血杆菌。结论:利用DGGE技术发现了SECC儿童菌斑与CF儿童菌斑细菌组成的差异,并在SECC样本中发现了区别于CF样本的未培养微生物,这些微生物在致龋过程中发挥的作用还有待研究。展开更多
文摘现阶段光伏电池等新式能源接入配网比例日益增高,单独优化分析独立变电站-能源中心系统(Substation-Energy Center System,SECC)不利于配网运行效率的提高以及光伏能源的消纳。论文建立了包含变电站、光伏电池和燃气轮机等能源供应的多能源中心协同配网运行优化模型。采用模糊C均值聚类处理光伏数据,得到聚合后光伏优化出力,提高了运行效率。文章重点讨论了变电站内温度控制和电动车管理模式对多SECC协同运行效率影响。增加了SECC单独运行模式的仿真,对比多SECC协同运行模式下配网经济运行效率。通过算例验证了所提模型的合理性,并提出了合理的建议。
文摘The Vietnam International Trade Fair for Apparel,Textiles and Textile Technologies(VIATT)is poised to return to the Saigon Exhibition and Convention Center(SECC)from February 26-28,2026.Building on its second edition’s nearly 13-percent exhibitor growth,next year’s show floor will expand by 20 percent,from 15,000 to 18,000 square meters and cover the full area of Halls A and B.This includes new dedicated zones for apparel,fashion accessories,and textile chemicals and dyes,with the strategic growth underscoring Vietnam’s emergence as a vertically and horizontally integrated textile powerhouse.
文摘目的:通过变性梯度凝胶电泳(denaturing gradient gel electrophoresis,DGGE)技术分析无龋(caries free,CF)儿童和重型早期婴幼儿龋(severe early childhood caries,SECC)儿童集合牙菌斑内细菌多样性的差异。方法:无龋儿童和SECC儿童各34例,牙菌斑基因组DNA等量混合后,制备无龋和SECC儿童牙菌斑基因组库,进行全基因组放大。分别以放大前后的基因组为模板,PCR扩增16S rDNA的V2-V3区,DGGE分析,切取SECC样本的特异条带进行克隆、测序、核酸序列比对。结果:基因组在放大前后DGGE图谱一致,SECC组样本的条带数多于CF组的条带数。切取的SECC样本的4条特异条带测序后证实为3种未培养微生物和嗜沫嗜血杆菌。结论:利用DGGE技术发现了SECC儿童菌斑与CF儿童菌斑细菌组成的差异,并在SECC样本中发现了区别于CF样本的未培养微生物,这些微生物在致龋过程中发挥的作用还有待研究。
