摘要：研究了添加Al2(SO4)3抑制硅转移的麦草浆蒸煮工艺。采用均匀设计和偏最小二乘法,优化的工艺条件为:NaOH 13%,Al2(SO4) 31.36%,MgO 0.39%,CaO 3.2%,AQ 0.05%;最高温度160℃,保温30min,液比1∶5,该条件下纸浆得率46.68%,KMnO4值10.52,纸浆SiO2含量2.92%,黒液SiO2含量1.34g·L-1,pH11.83。结果表明添加Al2(SO4)3抑制硅转移效果较好。

摘要："版式设计与计算机排版"是印刷工程专业教学中一门重要的专业基础课程,以培养印刷工程专业学生利用计算机技术和相关图文处理、排版软件进行版式设计的能力为教学目标。本研究在分析"版式设计与计算机排版"课程特点及存在问题的基础上,结合艺术教育与技能培养的改革实践,提出了课程内容与教学方法的改革方案,对深化高校印刷工程专业课程的教学改革具有一定的参考意义。

摘要：在麦草NaOH-AQ法Al2O3留硅的基础上,实验采用了均匀设计及偏最小二乘法,研究了不同氧化物协同Al2O3留硅蒸煮工艺。得到的最佳工艺条件为:NaOH14.7%,Al2O30.1%,MgO0.1%,CaO3%,蒽醌0.05%;在160℃下,保温30min,液比1∶5。该实验条件下浆得率47.8%,KMnO4值9.01,纸浆Si O2含量3.02%,黑液Si O2含量0.85g/L,纸浆灰分10.39%;与NaOH-AQ法比较纸浆Si O2上升1.12点,灰分提高7.06百分点,有利于提高文化用纸的不透明度,黑液二氧化硅浓度下降约0.81百分点,黑液黏度降低,对黑液碱回收有利。实验结果表明不同氧化物协同氧化铝留硅作用效果明显。

摘要：研究氧化物协同留硅蒸煮工艺,并运用均匀设计和偏最小二次回归分析方法对蒸煮工艺条件进行了优化,得到最佳工艺条件为:氢氧化钠13%、氧化铝0.41%、氧化镁0.51%、氧化钙3.2%。在该条件下纸浆得率48.64%,高锰酸钾值10.52,纸浆的二氧化硅含量3.62%;黑液的二氧化硅含量1.37g·L-1,黑液pH11.83。

摘要：针对制浆造纸专业毕业设计和工厂生产实际中经常要进行的平衡计算 ,论述了用计算机进行平衡计算的方法。

摘要：本试验主要研究了废旧新闻纸脱墨浆的FAS漂白工艺及其影响因素,探讨了FAS用量、NaOH和FAS用量比、浆浓、漂白温度、时间及螯合剂对纸浆白度的影响。结果表明影响废旧新闻纸脱墨浆漂白效果的影响顺序为FAS用量>NaOH用量>浆浓>温度;废旧新闻纸脱墨浆FAS漂白的最佳工艺条件为:FAS用量0.6%、NaOH用量0.3%、浆浓10%、温度70℃、时间60min。在此条件下纸浆白度可达57.92%,可满足再生新闻纸的白度要求。

摘要：Most routing protocols for sensor networks try to extend network lifetime by minimizing the energy consumption, but have not taken the network reliability into account. An energy-aware, load-balancing and fault-tolerant routing scheme, termed as ELFR was propsed to adapt to the harsh environment. First a network robustness model was presented. Based on this model, the route discovery phase was designed to make the sensors to construct into a hop-leveled network which is mesh structure. A cross-layer design was adopted to measure the transmission delay so as to detect the failed nodes. The routing scheme works with acknowledge (ACK) feedback mechanism to transfer control messages to avoid producing extra control overhead messages. When nodes fail, the new healthy paths will be selected locally without rerouting. Simulation results show that our scheme is much robust, and it achieves better energy efficiency, load balancing and maintains good end-to-end delay.