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Shuitu Baochi Xuebao, 2019 通过1年静态培养试验，研究了鱼骨粉对碱性和酸性Cd污染土壤钝化修复效应、基本理化性质和酶活性的影响。结果表明：随着鱼骨粉施加量的增加，酸性和碱性土壤中pH、有机质和阳离子交换量增加，而含水率则较对照降低了2.90%~6.19%和0.10%~1.81%。土壤中TCLP（toxicity characteristic leachingprocedure）提取态Cd含量随鱼骨粉投加量增加而降低，较对照最大分别降低49.7%和17.0%。施加鱼骨粉后，碱性土壤中过氧化氢酶活性显著升高 ...
纪艺凝, 徐应明, 王农, 孙约兵
doaj
四川大学学报. 自然科学版, 2002 探讨了螺旋藻在弱光照下的抗氧化酶活力的变化 .结果显示 :在 110 0lx光照下 ,钝顶螺旋藻 (Spirulinaplentasis) 314和极大螺旋藻 (Spirulinamaxima) 438两者的SOD活性最低 ,黑暗条件下的活力分别是 110 0lx光照下的 2 .2倍和 1.4倍 ;两者的APX则在 6 0 0lx光照下 ,活性最大 ...
董斌, 兰利琼, 卿人伟, 傅华龙
doaj
Gongye shui chuli近年来，我国多台采用表面式换热器铝制散热器（SCAL）型间冷系统的火电机组出现铝制散热器腐蚀泄漏问题。通过对十余台同类型机组的实地调研与系统分析，揭示了纯铝材料的腐蚀机理：Cl-会破坏纯铝表面的钝化膜保护层，并与铝腐蚀产物Al（OH）3发生次生反应生成OH-，导致间冷循环水pH异常升高，而这种碱性环境又会加速钝化膜的溶解进程，从而进一步加剧铝基体的腐蚀。同时，SO42-会加速碳钢的腐蚀并生成腐蚀产物Fe3O4，纯铝表面的钝化膜在碱性环境中大面积溶解后 ...
郝洪铎 +4 more
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四川大学学报. 自然科学版, 1989 在不锈钢2Cr13表面,用直流磁控溅射沉积,经电子束熔凝处理,获得司太立合金复层,利用电化学技术研究了在0.5M硫酸和0.1M氯化钠溶液中的腐蚀特性.有效地改善了2Cr13钢的抗蚀性能,临界电流密度Ic降低2个量级,钝态电流密度降低一个量级.利用扫描电子显微镜,结合EDAX进行了显微形貌和化学成分分析.
冯志蓉, 黄宁康
doaj
[Orthopedic treatment strategy for hemophilic pseudotumor]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLi J +6 more
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[Comparative observation of analgesic efficacy between liposomal bupivacaine and "cocktail" therapy following artificial intelligence-assisted direct anterior approach total hip arthroplasty: A prospective randomized controlled study]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhai Y +8 more
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[<i>In vitro</i> culture, expansion, and biological characterization of mesenchymal stem cells derived from neonatal rat liver]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoChi M, Li B, Wu J, Ge J, Tang Y.
europepmc +1 more source
[Considerations for soft tissue management in endodontic microsurgery]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiHuang J, Gu S.
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[Ultrasound technologies' new clinical application for chronic liver diseases]. [PDF]
Zhonghua Gan Zang Bing Za ZhiXiao MY, Lu X, Jin JY, Wu ML, Ren J.
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[Trends of disease burden on spinal cord injury in China from 1990 to 2023]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYang F, Han Y, Pan W, Luo X.
europepmc +1 more source