[目的]改善竹材表面润湿性。[方法]采用介质阻挡放电(DBD)冷等离子体分别处理毛竹和巨龙竹表面,研究处理对2种竹材表面润湿性的影响。[结果]经DBD冷等离子体处理后,毛竹和巨龙竹表面润湿性均得到明显改善;DBD冷等离子体处理毛竹的最优...[目的]改善竹材表面润湿性。[方法]采用介质阻挡放电(DBD)冷等离子体分别处理毛竹和巨龙竹表面,研究处理对2种竹材表面润湿性的影响。[结果]经DBD冷等离子体处理后,毛竹和巨龙竹表面润湿性均得到明显改善;DBD冷等离子体处理毛竹的最优工艺为处理功率5 k W,处理7次;DBD冷等离子体处理巨龙竹的最优工艺为处理功率4 k W,处理3次。[结论]DBD冷等离子体处理能明显改善2种竹材表面润湿性。展开更多
[Objective] The paper was to study the effect of cold plasma on binding strength of bamboo. [Method] The bamboos were treated by 4 kinds of cold plasma nitrogen, oxygen, ammonia and argon, and the changes of contact a...[Objective] The paper was to study the effect of cold plasma on binding strength of bamboo. [Method] The bamboos were treated by 4 kinds of cold plasma nitrogen, oxygen, ammonia and argon, and the changes of contact angle and binding strength of bamboos before and after treatment were tested. [Result] Oxygen cold plasma treatment could increase binding strength of bamboo by 25%-30%. The cold plasma treatment was very fast and effective, but the changes of contact angle was not great in this experiment. [Conclusion] Cold plasma treatment could increase the binding strength of bamboo.展开更多
文摘目的探讨大鼠孕期暴露DBP对子代睾丸mRNA差异表达的影响。方法选取清洁级SD成年鼠,雌雄比例12交配,确定怀孕后行DBP染毒,试验组灌胃剂量为500 mg/kg,同时设置对照组,每组8只;试验组老鼠染毒至哺乳期结束,饲养子代雄鼠60 d,解剖取睾丸组织,采用二代高通量测序技术对睾丸样本进行基因差异表达分析及筛选,对差异表达基因进行GO富集分析和KEGG富集分析。结果差异表达的基因共有1421个,其中,上调基因722个,下调基因699个。筛选出的差异表达基因GO功能富集分析显示,生物过程(Biological Process BP)中,差异表达基因与老化、细胞增殖、炎症反应等密切相关;细胞成分(Cellular Component CC)中,差异表达基因主要富集在内质网膜、细胞膜等部分;分子功能(Molecular Function MF)中,差异表达基因主要与钙离子结合、趋化因子活性等密切相关。KEGG富集结果显示,孕期暴露DBP对子代雄鼠的影响集中分布在TNF信号传导途径、类固醇生成、细胞黏附分子(CAMs)、醛固酮合成和分泌等通路。结论大鼠孕期DBP暴露可致雄性子代睾丸mRNA差异表达,影响生殖系统的通路主要有TNF信号传导途径、类固醇生成、细胞黏附分子(CAMs)、醛固酮合成和分泌等。
文摘[目的]改善竹材表面润湿性。[方法]采用介质阻挡放电(DBD)冷等离子体分别处理毛竹和巨龙竹表面,研究处理对2种竹材表面润湿性的影响。[结果]经DBD冷等离子体处理后,毛竹和巨龙竹表面润湿性均得到明显改善;DBD冷等离子体处理毛竹的最优工艺为处理功率5 k W,处理7次;DBD冷等离子体处理巨龙竹的最优工艺为处理功率4 k W,处理3次。[结论]DBD冷等离子体处理能明显改善2种竹材表面润湿性。
基金Supported by Opening Research Project for Key Laboratory of Bamboo in Zhejiang Forestry Academy(2010K04)~~
文摘[Objective] The paper was to study the effect of cold plasma on binding strength of bamboo. [Method] The bamboos were treated by 4 kinds of cold plasma nitrogen, oxygen, ammonia and argon, and the changes of contact angle and binding strength of bamboos before and after treatment were tested. [Result] Oxygen cold plasma treatment could increase binding strength of bamboo by 25%-30%. The cold plasma treatment was very fast and effective, but the changes of contact angle was not great in this experiment. [Conclusion] Cold plasma treatment could increase the binding strength of bamboo.
