Results 11 to 20 of about 14,125 (116)
研究了偏甘油酯脂肪酶Lipase G50的固定化及其催化高酸值米糠油乙酯化脱酸效果。结果表明:相比于其他4种树脂,ECR8285树脂对Lipase G50的固定化效果最好,在载酶量为40 mg/g时,制备得到的固定化Lipase G50的酯化活力为518.66 U/g,比活力为15.65 U/mg;最佳的固定化Lipase G50催化脱酸工艺条件为无水乙醇与高酸值米糠油中游离脂肪酸物质的量比2∶ 1、酶加量40 U/g、反应温度40 ℃、反应时间6 h,在最佳条件下高酸值米糠油的酸值(KOH)由62 ...
陈东升1,刘建1,刘宁2,李道明2CHEN Dongsheng1, LIU Jian1, LIU Ning2, LI Daoming2
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ABSTRACT The demand for advanced aerospace components necessitates near‐α titanium alloys with enhanced high‐temperature performance and compatibility with additive manufacturing (AM). To address this, an in situ alloying strategy was employed to co‐modify a Ti‐6.5Al‐2Zr‐Mo‐V alloy with Si and Y during laser powder bed fusion.
Zishuo Ma +10 more
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采用SA—CaCl2包埋法和PVA—H3BO3交联法固定化白腐真菌,并进行固定化组分优化,并对两种方法所形成的固定化小球性能进行了比较。结果显示:固定化组分优化后,两种方法均能得到较好的固定化效果。由性能比较结果可知:SA、PVA固定化小球均有较好的细胞增殖能力和良好的传质性,SA固定化小球机械强度较低,剧烈搅动易破裂,只适宜保存在潮湿环境中,而PVA固定化小球强度较高,原料价格较低,固定化小球在空气或水中均适宜保存。
武春艳 +4 more
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Production of Soybean Peptide with High Degree of Hydrolysis by Immobilized Flavourzyme(固定化风味蛋白酶水解法生产高水解度大豆肽) [PDF]
Produce soybean peptides from soy protein using immobilized Flavourzyme for lower production costs and higher degree of hydrolysis. Single-factor experiment and response surface methodology were used to optimize the hydrolysis process. The results showed
SHI Guangbo(师广波) +3 more
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Ectomycorrhizal roots of Pinus armandii release more carboxylates than non‐mycorrhizal root segments, mobilizing Al‐bound inorganic P. Under the lowest available P conditions, they also secrete more phosphatase, promoting the mineralization of Al‐bound organic P.
Jun Zhou +7 more
wiley +1 more source
在染料废水的生物处理法中,固定化技术得到了广泛的应用。根据造价及其稳定性,不同的固定化技术适用于不同的染料降解反应中。较游离态而言,生物固定化技术具有高稳定性、高生物活性和重复利用性。最近,关于固定化技术的报道已经有很多。然而,大多数研究均针对于特定的固定化技术的应用。综述了菌体与酶固定化的主要方法,比较了不同固定化技术的优缺点及不同载体材料特性,简述了固定化技术在处理染料废水中的应用。
张淼 +4 more
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Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
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微生物固定化技术是一种有效的废水处理技术。对微生物固定化载体和固定化方法进行了分类,并对微生物固定化后的细胞性能做了阐述。综述了微生物固定化方法在各类废水中的国内外研究现状,并针对相关问题提出了今后的研究和发展方向。
屈佳玉
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ABSTRACT Controllable energy release in solid propellants has always been a challenging technology, and extensive efforts have been devoted to the synthesis and application of catalysts to achieve its controllable release. In this study, tannic acid (TA) and its complexes (TA‐Cu) were introduced into boron@ammonium perchlorate (B@AP) composites using ...
Yong Kou +12 more
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通过对各种固定化方法的比较,建立了一种新型处理焦化废水的包埋方法——PVA铝盐法。通过把富集培养的硝化细菌单独固定化,进行了固定化用于焦化废水脱氮的可行性研究。考察了固定化细菌的活化过程、对温度的敏感性及对焦化废水的适应能力。最终确定将PVA铝盐法固定的硝化细菌用于对焦化废水脱氮是一种可行的新方法 ...
王剑锋, 安立超, 张文成
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