Results 121 to 129 of about 73,302 (129)

Flocculation and Settling Properties of Fine Sediment

, 2002
电解质对细颗粒泥沙的絮凝或分散有重要作用 ,而细颗粒泥沙的絮凝沉降特性对土壤表层沉积性结皮的入渗性能有重要影响。在NaCl浓度为 0～ 10mmol/L ,泥沙初始浓度为 5、10、2 0 g/L时 ,本文利用吸管法研究了NaCl对细颗粒泥沙静水絮凝沉降特性的影响。结果表明 :泥沙沉降可分为两个阶段 ,分选沉降段和絮凝沉降段 ;在液面下同一深度 ,泥沙相对浓度随时间呈指数衰减 ;细颗粒泥沙絮凝的临界粒径为 0 .0 2 7mm ;泥沙平均沉速 ω随NaCl浓度以及泥沙初始浓度的增大而增大 ...
邵明安, 陈洪松
core  

Ni²⁺诱导好氧颗粒污泥形成及处理高盐废水脱氮除磷研究

Gongye shui chuli
南疆地区的土壤表层含盐量大，漫灌用水引起盐分溶解，污染地表水，研究降解高盐废水脱氮除磷的技术尤为重要。在高径比（RH/D）为7.5的序批式间歇反应器（SBR）内接种活性污泥，以合成废水（含0.25 mg/L Ni2+）为进水，分析污泥颗粒化过程中的污泥形态、污染物去除性能、微生物群落的变化，以及盐度胁迫下颗粒污泥去除高盐废水中污染物的能力。结果表明，成熟的颗粒污泥呈黄色多元状，平均粒径为357 μm，对废水中COD、TP和NH4+-N的平均去除率分别为95%、91.27%和94.5%，优势菌属为动胶菌属（
肖飞, 王世民, 贾壮壮, 赵峰德
doaj  

[In vitro toxicity of naturally occurring silica nanoparticles in C1 coal in bronchial epithelial cells]. [PDF]

Zhongguo Fei Ai Za Zhi, 2012
Li G, Huang Y, Liu Y, Guo L, Zhou Y, Yang K, Chen Y, Zhao G, Lei Y.   +8 more
europepmc   +1 more source

[Guideline on lung ultrasound to diagnose pulmonary diseases in newborn infants]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi, 2019
Division of Perinatology, Society of Pediatric, Chinese Medical Association, Division of Neonatal Ultrasound Society, the Chinese Neonatologist Association, Chinese Medical Doctor Association, Division of Critical Ultrasound Society of Ultrasonics, China Medicine Education Association, Chinese Critical Care Ultrasound College, Editorial Board of the Chinese Journal of Applied Clinical Pediatrics.   +9 more
europepmc   +1 more source

[Research advances in liver diseases associated with parenteral nutrition]. [PDF]

Zhonghua Gan Zang Bing Za Zhi, 2017
Ren HN, Huang WX.
europepmc   +1 more source

[Occurrence and survival condition of lung cancer with different histologies among residents in Pudong new area]. [PDF]

Zhongguo Fei Ai Za Zhi, 2014
Chen H, Yang C, Yan B, Sun L, Wu Z, Li X, Zhang M, Li X, Yang L.   +8 more
europepmc   +1 more source