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Prolonged hypervolemic hemodilution decreases functional capillary density of ileal mucosa in pigs revealed by sidestream dark-field imaging

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第10期12卷 867-874页

作者： zdenek turek Vladimir CERNY Renata PARIZKOVA Jindrich SAMEK Martin OBERREITER Department of Anesthesiology and Intensive Care University Hospital Hradec KraloveCharles University in PragueHradec Kralove 500 05Czech Republic Department of Surgery University Hospital Hradec KraloveCharles University in PragueHradec Kralove 500 05Czech Republic

Objective:Hemodilution changes the physical properties of blood by reducing its hematocrit and blood *** tested whether prolonged hypervolemic hemodilution (HHD) impairs functional capillary density (FCD) of ileal mucosa in healthy mechanically-ventilated pigs and if there is any correlation between changes in FCD of ileal and sublingual mucosas during ***:Sixteen domestic female pigs were anesthetized,mechanically-ventilated,and randomly assigned to the HHD (20 ml/(kg·h) Hartmann's solution for 3 h) or fluid restrictive (5 ml/(kg·h) Hartmann's solution for 3 h) *** of sublingual and ileal mucosas via ileostomy were visualized using sidestream dark-field (SDF) imaging at baseline conditions (t=0 h) and at selected time intervals of fluid therapy (t=1,2,and 3 h).Results:A significant decrease of ileal FCD (285 (278-292) cm/cm 2) in the HHD group was observed after the third hour of HHD when compared to the baseline (360 (350-370) cm/cm 2) (P<0.01).This trend was not observed in the restrictive group,where the ileal mucosa FCD was significantly higher after the third hour of fluid therapy as compared to the HHD group (P<0.01).No correlation between microhemodynamic parameters obtained from sublingual and ileal mucosas was found throughout the ***:Prolonged HHD established by crystalloid solution significantly decreased ileal villus FCD when compared to restrictive fluid *** inappropriate degree of HHD can be harmful during uncomplicated abdominal surgery.

关键词： Hypervolemic hemodilution 肠的 microcirculation Sidestream 黑暗地的成像

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Proposed EU legislation to force changes in sewage sludge disposal:A case study

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Frontiers of Chemical Science and Engineering 2018年第4期12卷 660-669页

作者： Vojtech turek Bohuslav Kilkovsky zdenek Jegla Petr Stehlik Institute of Process Engineering Faculty of Mechanical EngineeringBmo University of Tectmology61669 BmoCzech Republic

The consequences of changes planned in the European Union legislation relevant to the disposal of sewage sludges are discussed. A specific municipal waste water treatment plant is analyzed in terms of drying and subsequent combustion or pyrolysis of the produced stabilized sludge, and the respective net energy balances are carried out. A simplified economic analysis of the two disposal options is presented, which suggest that combustion of the sludge would be economically infeasible while pyrolysis of the sludge in a modular, self-sufficient container unit can bring a small financial benefit due to the selling of the produced phosphorus-rich biochar.

关键词： sewage sludge drying combustion pyrolysis

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