Results 31 to 40 of about 14,125 (116)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source
Gongye shui chuli, 2001 对细胞固定化技术进行了较为全面的介绍，指出理想的细胞固定化载体应该具备对微生物无毒、性质稳定、传质性能良好、强度高、寿命长、价格低廉等条件。详细阐述了细胞固定化技术在处理氨氮废水、含酚废水、重金属废水中的研究与应用现状，认为寻找高效、抗毒性强的生物及性质优良的固定化载体，开发高效的固定化反应器，进行生物再生是实现细胞固定化技术在废水处理中广泛应用的主要研究方向。特别指出的是这项技术在重金属废水处理中有着广阔的应用前景。
于霞, 柴立元, 甘雪萍
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Developing high‐efficiency catalysts for the seawater urea oxidation reaction (UOR) is pivotal to advancing hydrogen production via seawater electrolysis. Defect engineering has established itself as a core strategy for regulating catalytic activity.
Xiaoyu Wu +11 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2008 目的研究固定化β-羟丁酸脱氢酶的性质及其临床应用价值。方法以壳聚糖为载体,使用戊二醛为交联剂共价键将β-羟丁酸脱氢酶固定化。结果酶蛋白偶联率为60.9%,酶的活性回收率为55.4%;原酶和固定化酶的km值分别为0.8×10-2g/ml和0.5×10-2g/ml;原酶最适温度为37℃,固定化酶最适温度为50℃;原酶最适pH值为8.0左右,固定化酶最适pH值为7.3左右。结论由于固定化酶具有较高的热稳定性（最适50℃）和低温稳定性（4℃8个月）,可在较大的温度范围和较长时间内反复使用 ...
张颖, 徐兆珍, 于永光
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Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 88-98, July 2026.ABSTRACT Objective To identify prenatal predictors of tuberous sclerosis complex (TSC) in fetuses with one or more cardiac rhabdomyomas (CR), evaluate an integrated multimodal diagnostic workflow using fetal magnetic resonance imaging (MRI) and trio whole‐exome sequencing (trio‐WES) and characterize perinatal outcomes.
X. Cai +8 more
wiley +1 more source
四川大学学报. 自然科学版, 1985 本文报导了甲壳素—戊二醛固定化葡萄糖淀粉酶的一些研究结果,着重研究了葡萄糖淀粉酶与甲壳素的比例,戊二醛的最适浓度以及pH值对固定化酶制备的影响因素同时,比较研究了固定化酶与自然酶的一些性质,结果表明两者的最适温度相同皆是50℃;固定化酶的最适PH值高于自然酶,前者最适pH为4.4,后者最适pH为4.0.固定化酶与自然酶对热的稳定性无显著差异。
李振华, 梁新光
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Governing by Ambiguity: Sociotechnical Imaginaries of Platforms in China
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT Besides clear policy directives, the unresolved and open‐ended elements in policy communication also create discursive politics. This article argues that ambiguity in policy communication reflects the state's exercise of power within a fractured sociocultural landscape.
Fangyu Qing, Ngai Keung Chan
wiley +1 more source
Dehydrogenation Thermodynamic and Kinetic Challenges of Mg‐Ni‐Based Alloy Hydrides
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Solid‐state hydrogen storage stands as a pivotal, safe, and efficient solution for the future hydrogen economy. Among diverse hydrogen storage systems, Mg‐Ni‐based alloy hydrides are recognized as cornerstone materials. However, their practical application is hindered by two core challenges: the high thermodynamic stability of the hydride ...
Jinglan He +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT With high theoretical capacity and low cost, bismuth sulfide (Bi2S3) demonstrates considerable potential as an anode for sodium/potassium‐ion batteries (SIBs/PIBs). Unfortunately, significant volume variation, low electrical conductivity, and dissolution of polysulfides drastically weaken their intrinsic merits.
Fuyu Xiao +11 more
wiley +1 more source
Gongye shui chuli, 2021 农药污染日益严重，固定化微生物比游离微生物具有更高的降解毒性物质的效率，可作为农药降解的战略手段。综述了固定化微生物技术在农药降解过程中载体的选择以及它们的优点和局限性、功能微生物的选择和修复效果与机理，总结了固定化微生物技术在不同种类农药废水（有机氯、有机磷、氨基甲酸酯、拟除虫菊酯、三嗪类和新烟碱类）中的最新应用研究进展。认为在农药降解过程中应注重选择合适的载体材料和具有针对性的功能微生物制备固定化微生物材料，并需要深入探究其修复机理。探讨固定化微生物技术在处理农药污染废水问题方面的发展前景 ...
周玲, 梁媛, 丁丽娜, 陈壮
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