Nematocytes in Hydra differentiate from interstitial stem cells. Desmonemes differentiate mainly in the distal half of the body column while stenoteles differentiate predominantly in the proximal half. This difference was used to determine the timing of nematocyte-type commitment in the differentiation pathway. Cells were transferred from distal or proximal regions to all positions in the body ...

In this study we investigate the model uncertainties involved in predicting long-term permeable reactive barrier (PRB) remediation efficiency based on a lab-scale column experiment under accelerated flow conditions. A PRB consisting of 20% iron and 80% sand was simulated in a laboratoryscale column and contaminated groundwater was pumped into the column for approximately 1 year at an average gr...

With the improvement of the urbanization level, the mixed city water has surged and the traditional denitrogenating cost in the course of wastewater reuse has been unbearable. This experiment used the technology of the constructed rapid infiltration (CRI) and applied the soil column simulation method in the laboratory. The results show that nitrogen removal rates of two soil columns are 73.73% ...

A model system for theory and experiment which is relevant to foam fractionation consists of a column of foam moving through an inverted U-tube between two pools of surfactant solution. The foam drainage equation is used for a detailed theoretical analysis of this process. In a previous paper, we focused on the case where the lengths of the two legs are large. In this work, we examine the appro...