نتایج جستجو برای: selective flocculation
تعداد نتایج: 201852 فیلتر نتایج به سال:
An increase in the amounts of the globulin components of the serum has long been recognized in advanced states of liver disease (1, 2, 3), although the significance of the alteration has never been defined. It has been the basis of the Takata-Ara, Weltmann and the formol-gel reactions which have been used for many years in the diagnosis of liver disease. The nonspecific nature of these tests is...
Deletion of ribosomal protein L32 genes resulted in a nonsexual flocculation of fission yeast. Nonsexual flocculation also occurred when two other ribosomal protein genes, rpl21-2 and rpl9-2, were deleted. However, deletion of two nonribosomal protein genes, mpg and fbp, did not cause flocculation. Overall transcript levels of rpl32 in rpl32-1Δ and rpl32-2Δ cells were reduced by 35.9% and 46.9%...
Existing flocculation models for cohesive sediments are classified into two groups: population balance equation models (PBE) and floc growth models. An FGM ensures mass conservation in a closed system. However, an FGM determines only the average size of flocs, whereas a PBE has the capability to calculate a size distribution of flocs. A new stochastic approach to model the flocculation process ...
Initiation of flocculation ability of Saccharomyces cerevisiae MPY1 cells was observed at the moment the cells stop dividing because of nitrogen limitation. A shift in concentration of the limiting nutrient resulted in a corresponding shift in cell division and initiation of flocculence. Other limitations also led to initiation of flocculence, with magnesium limitation as the exception. Magnesi...
The aim of this study was to characterize landfill leachate of Çorlu that was heavily industrialized, and to examine the application of coagulation-flocculation and adsorption for the treatment of this leachate. This deposited area is non-regulated and municipal and industrial wastes are deposited uncontrollably. The experiments were conducted to investigate the combined process of coagulation-...
The tube flocculator is used to study how fluid shear levels affect the settling properties of a flocculated alum-kaolin suspension. FReTA is employed to quantitatively compare the effects of varying fluid shear and hydraulic residence time on the sedimentation velocity distributions and the post-sedimentation residual turbidities of flocculated suspensions formed in the tube flocculator. Resul...
Flocculation is a common and inexpensive method for harvesting algae from solution. After nitrogen starvation, it was shown that 83 + 3% of the wall-deficient cells of the cw 15 mutant of Chlamydomonas reinhardtii flocculated from 12 mL samples within 15 min after the addition of 15 mM calcium chloride at pH 8.4. Only 24 2% of the wildtype strain flocculated under these conditions, thus demonst...
Toxoplasmosis is a common disease among human and livestock with a worldwide distribution. This disease will be generated by a unicellular parasite called toxoplasmosis Gondii. The disease usually is diagnosed in laboratory through several methods such as; ELISA, Immunofluorescence and Chemo luminescence. The mentioned methods have sufficient sensitivity and trait, but since they are need to us...
JANSEN, B. C., 1971. The quantitative determination of the toxic factors produced by Clostridium botulinum types C and D. Onderstepoort f. vet. Res., 38 (3), 177180 (1971). The Lf values of the C, C2 and D factors produced by Clostridium botulinum types C and D were compared with the results of in vivo quantitative tests. It was found that the flocculation test is a rel iable method of determin...
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