Results 61 to 70 of about 235 (149)
Gaoya dianqi, 2010 为了研究激发粒子的演化规律,优化等离子体助燃参数,在不同的电极形状、电极间隙、气体流量、放电电压条件下,对介质阻挡放电的发射光谱进行了实验测量与分析。研究发现:网形电极结构的激励器光谱最强,王形次之,条形最低;随着电极距离的增大,发射光谱强度呈现先慢后快的下降趋势;工作介质流量有一个最佳值,为60 g/s;随着驱动电压或频率的增加,微放电通道增多,放电增强,发射谱线强度增强。
杜宏亮 +5 more
doaj
Effect of Gluten Treated with Cold Plasma on Quality Properties of Chicken Gel [PDF]
Gluten was treated by cold plasma with different powers (350~950 W), and then were added to chicken batter, which was used as raw material. The cooking loss, water holding capacity, texture, dynamic rheology, chemical forces, microstructure, water ...
Dandan LI +5 more
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Gaoya dianqi, 2019 文中针对介质阻挡放电呈现的极性效应,研究了基于放电李萨如图的方法,提出以极性效应参数k来定量表征极性效应的强弱。在高频和工频两种条件下对不同网格密度的丝网电极和平板电极进行了实验研究,结果表明单介质的丝网电极k值较大,双介质的平板电极k值较小;随着频率和电压的升高,k值减小,极性效应减弱。上述结果表明参数k值能够有效用于极性效应的研究。
李兴旺, 叶齐政
doaj
, 2019 为考察等离子体合成射流流动控制效果,在NACA0021二维机翼模型上安装单个等离子体合成射流,开展低速风洞试验。采用烟流显示技术,定性观察了不同攻角和加载电参数下等离子体合成射流对流动分离的控制效果,并使用PIV技术对流动控制效果进行了定量研究。实验结果表明,在一定频率范围内(80～240 Hz),频率增加会减弱射流流动控制能力;加载电压幅值的影响较小;在一定范围内提高占空比(5%～15%),可增强射流的流动控制能力;在一定攻角范围内(0～19°),烟流流动显示结果与PIV测量所得的规律相似,在小攻角下,
刘汝兵 +4 more
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Effect of Low-salt Curing on the Quality of Crisp Grass Carp after Freeze-thaw Treatment [PDF]
To investigate the effect of salt concentration on the quality and myofibrillar protein of crisp grass carp fillets before and after a single freeze-thaw cycle, fillets were marinated in 0.25, 0.5, 0.75, 1.0, 1.5, and 2.0 mol/L NaCl solutions at 4 ℃ for ...
Hao DONG +7 more
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基于等离子体合成射流的飞翼布局模型主动流动控制风洞实验研究 [PDF]
, 2019 为探究等离子体合成射流对三维模型的流动控制效果和机理,在中等展弦比飞翼布局模型前缘布置等离子体合成射流激励器开展低速风洞实验研究。通过六分量天平测力,考察沿弦向、展向不同分布位置的等离子体合成射流对飞翼模型气动力和气动力矩的作用;采用PIV(Particle Image Velocimetry,粒子图像测速)测量模型表面流场分布,研究等离子体合成射流流动控制机理。结果表明:在飞翼模型单侧布置等离子体合成射流,能够有效改善其气动特性,并能产生附加的滚转力矩,滚转力矩系数变化量最高达到0.009 ...
刘汝兵, 孙健, 林麒, 牛中国
core
Effects of Different Physical Field Treatment Technologies on the Quality of Freeze-dried Mango Powder [PDF]
To investigate the effects of non-thermal physical field treatment techniques on the quality of freeze-dried mango powder, untreated freeze-dried mango powder was used as a control group (CK). The experimental groups were subjected to different microwave
Feng WANG +5 more
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Gaoya dianqi, 2006 实验研究和比较了管-管电极DBD和线-管电极 DBCD的放电特性,并从放电机理角度分析了它们放电特性不同的原因。电压-电流波形图、电压-电荷李萨育图形测量和发光图像拍摄的结果表明:线-管电极DBCD相对均匀、稳定,不同于管-管电极DBD明显的丝状流注放电的形式; 在相同的外加电压下,线-管电极DBCD比管-管电极DBD 具有更高的能量效率。
王辉, 方志, 孙岩洲, 邱毓昌
doaj
Treatment System of Ballast Water in Oceanic Ships Using Hydroxyl Radical(·OH) Based on Strong Electric-field Discharge [PDF]
, 2014 船舶压载水的交换可能致使海洋中不同海域生物的交互入侵,打破原有海域生态系统的平衡,为此,研究了一种基于强电离放电方法规模化制备羟基自由基技术的新型船舶压载水处理系统。该系统利用大气压下强电场电离放电,将氧气和气态水充分电离,离解产生大量氧活性粒子,并通过高速射流,在管路中完成空化效应,制备高浓度羟基溶液,实现在船舶压载水装载过程中快速、高效的杀灭有害微生物和病原体。实验结果显示,压载水经过质量流量为10 T/H的压载水处理系统处理后,藻和细菌被全部杀灭,致死率达100%。在48 H和120 ...
孙健 +4 more
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Effects and Mechanisms of Low-temperature Plasma Pretreatment on the Ultrasound-assisted Extraction Process of Total Flavonoids from Ginger Powder [PDF]
Objective: Effects of low-temperature plasma pretreatment assisted by ultrasound on the extraction of total flavonoids from ginger powder were studied, and its mechanism was preliminary discussed, and provided a new method for the extraction of total ...
Xuefeng LI +4 more
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