The results indicated that: 1) the highest trapping efficiency was obtained when particulate matter and gas phase was collected by a Cambridge filter and an absorbing flask with 30mL 0.1mol/L NaOH solution respectively,the HCN recovery was 99.1% with RSD of 4.3%;
The optimum conditions obtained were reaction time 4 h, mass ratio of monomer to starch 2∶[KG-*2/3]1, neutralization degree of monomer to pH 6.50, percentage of cross-linking agent amount and initiator amount in starch mass 0.83% and 2.50% respectively, reaction temperature 55℃, drying temperature 150℃. The high water absorbing resin with 580 times of adsorbed ion water was prepared under these conditions.
The purpose of the paper is to investigate the optimum parameters for the production of brown pigment from Litchi Chinensis Sonn. AB-8,NKAII,NKA-9,D101-C and D201-C were selected and compared for absorbing the pigment.
4. The optimum conditions for the extraction techniques of Iron-porphyrin were: separating Iron-porphyrin from globin at pH1.7,at about 2 hours’churning time for sepration,at pH 3.2 for absorbing Iron-porphyrin,at 0.3 times CMC supplement,at about 45 minutes’churning time for absorbtion,the extraction pH at 4.8,70 minutes’for churning.
This paper considers how to find some joint distributions and their marginal distributions of crossing time and renewal numbers related to two PH-renewal processes by constructing an absorbing Markov process.
Discrete singular convolution method with perfectly matched absorbing layers for the wave scattering by periodic structures
Absorbing water from soil by roots in vascular plants is an important physiological function and plays an essential role on their water balance.
Results showed that compared with farmland watersheds, runoff generation time in forest watersheds was delayed remarkably, and peak flow was reduced greatly, which indicates that vegetation played an important role in holding and absorbing rainfall.
The contents of the tested microelements in soil fauna had significant correlations with their environmental background values, litter decomposition rate, food habit of soil fauna, and its absorbing selectively and enrichment to microelements.