Results 91 to 100 of about 367,017 (144)

[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

[Determination of perfluorinated compounds， antibiotics and pesticides in drinking water by automated solid phase extraction with ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Liang J, Feng J, Zeng D, Zhou L, Zhong X, Li Y, Chen D.   +6 more
europepmc   +1 more source

EM有效微生物技术在废水处理中的应用与发展

, 2004
EM技术应用于废水生物处理具有广阔的发展前景。介绍了EM中代表性的微生物组成、作用及EM处理废水的机理,列举了国内外利用EM技术处理生活污水和工业废水的实例,并对EM技术和传统活性污泥法进行了比较,认为该技术应用于活性污泥系统中具有污泥量少,处理效果好等特点;并介绍了EM制剂的生产应用 ...
廖银章, 严平, 李旭东
core  

[Dynamic stretching promotes osteogenic differentiation of human bone marrow mesenchymal stem cells in three-dimensional culture]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Bai X, Yuan Z, Zhou Y, Lv L.
europepmc   +1 more source

谷氨酰胺合成酶在固氮鱼腥藻固氮调节中的作用

, 1987
在MSX(methlonine sulfoximine,谷氨酰胺合成酶的不可逆抑制剂)存在下,固氮鱼腥藻(Anabaena azotica)所分泌的氨量和谷氨酰胺合成酶(GS)活力有较好的负相关性,证明谷氨酰胺合成酶-谷氨酸合成酶(GS-GOGAT)是固氮鱼腥藻氨同化的重要途径。在蛋白质合成受到氯霉素拟制时,NH_4~+对固氮酶的失活是迅速的,同时GS活力有较大下降,表明NH_4~+的调控酶的失活或降解。在氮固定条件下,固氮酶活力半衰期小于4小时,GS活力半衰期大于10小时 ...
戴玲芬,何慧,林惠民
core  

[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

[Recent advances in the research of chromatographic separation materials based on click chemistry]. [PDF]

Se Pu, 2023
Xu J, Cheng Y, Lu X, Jin X, Wang Y.
europepmc   +1 more source

[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]

Se Pu
Li YJ.
europepmc   +1 more source

厌氧氨氧化处理高氨氮废水的运行效能及碳排放分析

Gongye shui chuli
河北省某工业厂区废水处理厂设计规模为18 000 m3，接纳的废水主要以发酵废水为主，呈现高氨氮、低碳氮比的特征。二级生物处理初建成时使用传统AO工艺处理，为适应减污降碳要求，该厂进行了部分厌氧氨氧化改造，研究报道了改造后长期运行的跟踪监测数据并进行碳排放分析。结果表明：改造后的废水处理厂处理效果稳定，COD、TN和TP的平均去除率分别为99.22%、92.79%和98.64%，主要污染物指标均满足相关排放标准；全程自养脱氮（CANON）单元TN去除负荷达到0.377 kg/（m3·d ...
邓凯丽, 邢薇, 曹恩凯, 姚宏, 田盛   +4 more
doaj  

[Determination of eight per- and polyfluoroalkyl substances in seawater using dispersive membrane extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Ren Z, Ma JP, Liu YJ, Zhang L, Wu GG, Li S.   +5 more
europepmc   +1 more source