Results 91 to 100 of about 1,007 (144)

[Alveolar nitric oxide concentration has a potential value in the diagnosis and differential diagnosis of interstitial lung diseases]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao, 2023
Chang X, Chen M, Liao H, Dong H, Cai S.
europepmc   +1 more source

烤田对土壤中氮素和与氮有关的酶活性影响

Shuitu Baochi Xuebao, 2004
在水稻分蘖期对5种不同尿素氮肥水平的小区进行烤田5天的试验。试验结果表明,在烤田过程中,脲酶活性变化不明显,呈微弱增加趋势。硝酸还原酶活性急剧降低,羟胺还原酶活性呈波动变化,几乎检测不到亚硝酸还原酶活性。土表的铵态氮也呈波动变化,随着烤田时间的增加铵态氮含量降低。土表的硝态氮浓度不断增加,烤田增大了复水后硝态氮向地下水淋溶的趋势。施氮量越多,土表的矿质氮含量也越多。土壤烤田的主要目的是通过降低土壤的含水量,提高土壤的氧化还原电位,改善土壤的通气状况。
黄树辉 吕军
doaj  

Changes of folate constituents and contents in pakchoi as affected by nitrate to ammonium ratio in nutrient solution under hydroponic conditions. [PDF]

J Zhejiang Univ Sci B
Zhu Y, Cheng W, Ni Y, Ni W.
europepmc   +1 more source

[Research progress in the application of molecular imprinting technology in catalysis]. [PDF]

Se Pu
Ye WM, He DC, Cui XJ, Ma HW, Qian B, Shi F.   +5 more
europepmc   +1 more source

[Fabrication of high-degradation-efficiency molecularly imprinted photocatalysts and its selective degradation performance]. [PDF]

Se Pu
Zhang JJ, Song YF, Liu Y, Tian XM, Gao RX.   +4 more
europepmc   +1 more source

[Progress in the metabolic and biotransformation of polycyclic aromatic hydrocarbons and their derivatives in humans]. [PDF]

Se Pu
Qian JK, He RM, Fang K, Li CL, Bao S, Gu W, Tang S.   +6 more
europepmc   +1 more source

[Research advances on the mechanism and clinical application of cold atmospheric plasma in promoting wound healing]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Zhao ZY, Cai CH, Liu H, Liu SW, Wang XG.
europepmc   +1 more source

[Simultaneous determination of 50 veterinary drug residues in fish， shrimp， and crabs using a composite purification column-ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Deng HD, Ji XF, Xiao YP, Xia Q, Yang H.
europepmc   +1 more source

[Simultaneous determination of three components of sodium nitrophenolate in foodstuffs of animal origin by high performance liquid chromatography-tandem mass spectrometry using atmospheric pressure chemical ionization]. [PDF]

Se Pu, 2022
Zou Y, Shao L, Lan C, Chen S.
europepmc   +1 more source

[Biological activities of <i>Polygonatum</i> polysaccharides and their roles in the prevention and treatment of related diseases]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Guan P, Li Z, Wang Q, Ding H, Chen L, Qin H.   +5 more
europepmc   +1 more source