Results 71 to 80 of about 3,781 (123)

苹果酸/盐对暗棕壤磷有效性及林木吸收磷的影响

Shuitu Baochi Xuebao, 2011
模拟森林凋落物淋洗液中苹果酸/盐浓度范围,研究不同浓度苹果酸/盐对风干暗棕壤中磷有效性的影响及机制,同时采用盆栽试验,在自然暗棕壤中对苹果酸/盐提高磷的有效性进行验证,并探讨苹果酸/盐对落叶松和水曲柳幼苗吸收运输磷素养分的影响。结果表明:苹果酸/盐溶液显著促进A1层和B层风干暗棕壤磷的活化,释放量随浓度增加而增大,但B层释放效应较弱。对A1层和B层风干暗棕壤磷的释放作用苹果酸盐强于同浓度的苹果酸,因此推断,苹果酸/盐促进暗棕壤磷释放的主要机理在于苹果酸阴离子反应。苹果酸/盐对暗棕壤磷的释放具有累加性 ...
宋金凤, 宋俊杰, 褚永磊, 王勇, 崔晓阳, 彭红梅   +5 more
doaj  

[Interpretation of the "Expert consensus on the management of neonatal parenteral nutrition (2025)"]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Lin XZ, Zhang R, Chang YM, Li ZH, Liu XH, Bei F, Shen W, Tong XM, Chen C.   +8 more
europepmc   +1 more source

[Controlled synthesis of high-capacity bisphenol A molecularly imprinted polymer and its application to the detection of environmental water samples]. [PDF]

Se Pu
Cheng Y, Lin YL, Tian MM.
europepmc   +1 more source

[Metabolomic alterations in preterm infants with bronchopulmonary dysplasia]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Wu YY, Bu QQ, Wang X, Li T, Wu HY, Kang L, Wang YY, Liu DP, Guo J, Wang CJ, Kang WQ.   +10 more
europepmc   +1 more source

持续干旱对杞麓湖水质的影响分析

Renmin Zhujiang
滇中高原湖区杞麓湖流域水资源紧缺，持续干旱对杞麓湖水质影响巨大。采用2009—2023年共15 a的水文、水质资料，从杞麓湖降雨量、水位、蓄水量、水质等方面分析持续干旱对杞麓湖水质的影响。结果为：①持续干旱导致杞麓湖水位长期低于生态水位运行，水质恶化，全湖水体长期处于超Ⅴ类状态；②持续干旱对杞麓湖近岸边的总氮、总磷影响比较大，对高锰酸盐指数和化学需氧量也有一定影响，相比其他污染因子，对溶解氧的影响相对滞后；③采用SPSS进行关联性分析，杞麓湖总氮、总磷、高锰酸盐指数、化学需氧量与水位呈现负相关关系，p ...
文娅丹, 师琼, 普晓燕
doaj  

[Determination of 79 pesticide residues in fruits and vegetables by QuEChERS-ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Zhao L, Liu XJ, Zhang H, Li J, Cai L, Fan X, Li TY, Chen DY.   +7 more
europepmc   +1 more source

[Research progress on ionic liquid-functionalized magnetic Fe₃O₄ nanomaterials in sample pretreatment- chromatographic analysis]. [PDF]

Se Pu
Li JX, Zhao LZ, Sun XM, He ZQ, Cao HL, Luo YJ, Yang B.   +6 more
europepmc   +1 more source

[Shihu Mixture alleviates diabetic cardiomyopathy in rats by Sirt3-mediated upregulation of myocardial mitochondrial mitophagy pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Lin X, He Y, Shi H, Liu J, Hu H.
europepmc   +1 more source

[<i>Poria cocos</i> polysaccharide alleviates cyclophosphamide-induced intestinal barrier dysfunction and inflammation in mice by modulating gut flora]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhang Y, Duan Y, Zhang C, Yu L, Liu Y, Xing L, Wang L, Yu N, Peng D, Chen W, Wang Y.   +10 more
europepmc   +1 more source

[Three-dimensional printed scaffolds with sodium alginate/chitosan/mineralized collagen for promoting osteogenic differentiation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yang B, Lian X, Feng H, Qin T, Lyu S, Liu Z, Fu T.   +6 more
europepmc   +1 more source