Results 91 to 100 of about 2,125,466 (224)
Gongye shui chuli, 2008 分三个阶段即污泥菌种活化、生物膜培养、微生物驯化,阐述了在废水生物接触氧化处理中以牛奶加啤酒作营养液对生物膜进行培养与驯化的方法,并提出了实际应用中在生物膜的厚度、水温和pH、充氧量、营养物质等方面的有关注意事项。工程实践证明,运用该方法培养驯化生物膜效果良好。
邓喜红, 王超
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Two Nationalisms, One City: Official and Diasporic Framings of the 2019 Hong Kong Protests
Nations and Nationalism, EarlyView.ABSTRACT This study analyses the contested collective memories of the 2019 Anti‐Extradition Law Amendment Bill (Anti‐ELAB) movement, investigating how the Hong Kong government and diaspora construct divergent narratives to shape national identity and nationalism.
Isaac Iu
wiley +1 more source
, 2014 本发明是通过添加厌氧菌琼脂和γ-氧化铝对琼脂包埋法固定化污泥中的产氢微生物进行改性。普通琼脂与厌氧菌琼脂的质量比为2:1~4:1，γ-氧化铝的添加量为1.5~2.5%，琼脂溶液与污泥的体积比为2:3~3:2，滴球成形后接种于厌氧发酵制氢体系中。厌氧菌琼脂能够为产氢微生物提供营养、缩短适应期，被微生物利用后形成一定的孔道有利于传质。γ-氧化铝无毒、无臭、硬度大、比表面积大、吸附性强、溶液透过速率快，有利于微生物的附着，有利于增强琼脂小球的机械强度和促进传质过程。本发明对琼脂包埋法改性后，能够提高累积产氢量、
孙承林 +5 more
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New Phytologist, EarlyView.Polyphenol oxidases (PPOs) depletion preserves endogenous proteins at their predicted molecular weights and enhances detectable enzymatic activities. (a) Less RbcL crosslinking in ppo mutant of Nicotiana benthamiana. Leaf extracts were incubated for 1 h, separated on protein gels, stained with Coomassie or analyzed by Western blot with the anti‐RbcL ...
Kaijie Zheng +4 more
wiley +1 more source
Auto-focus technology and its application based on image processing
, 2009 Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
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Gongye shui chuli, 2011 抗生素废水通常具有组成复杂、有机污染物种类多、浓度高、BOD/COD低的特点。现阶段处理工艺主要有物化法、生物法、物化—生物法组合等处理工艺。在分析总结抗生素废水的来源及其特点的基础上,介绍了近年来抗生素废水处理中应用的生物组合处理工艺,并提出水解酸化—好氧生物处理组合工艺有望成为抗生素废水处理的主导工艺。
徐森, 胡晓东, 郑秋辉
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Fighting Corruption Through Accountability? A Survey Experiment 感覺課責能否抑制貪腐?來自調查實驗的證據
Public Administration, EarlyView.ABSTRACT Democratic Weberian bureaucracy is facing great challenges upholding public values as we see turbulent party politics disrupt merit‐based systems, causing bureaucrats' goal displacement and conflicting compliance under multiple accountability mechanisms.
Ming‐feng Kuo, Hsini Huang
wiley +1 more source
, 2008 一种甲醇催化蒸馏脱水反应生产二甲醚的方法，采用阳离子交换树脂做催化剂，在催化蒸馏塔中进行甲醇的脱水反应；催化蒸馏塔的操作条件为：反应段中部温度保持在80～200℃，塔顶温度为10～110℃，塔釜温度为130～260℃，操作压力为0.3～4.0MPa，塔顶回流比为0.5～20，进料体积空速为0.1～100小时-1。本发明可以在较低的温度、压力条件下，通过采用催化蒸馏的方法，提高甲醇生产二甲醚的转化率和选择性；在本法中甲醇可完全转化，大大降低了设备投资和操作费用，降低生产成本 ...
吕志辉 +6 more
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Gongye shui chuli, 2008 生物流化床技术是普通活性污泥法和生物膜法相结合的废水生化处理技术,因其具有处理效率高、容积负荷大、传质速度快、应用范围广等优点而受到广大研究者的关注。介绍了现阶段几种主要的生物流化床——内循环生物流化床、外循环三相流化床及厌氧-好氧复合式生物流化床等,并总结了其在各种废水处理中的应用研究情况,指出了生物流化床技术目前主要存在的问题及今后的发展方向。
李枝玲, 丁玉
doaj