In this paper we develop a new mathematical formulation for chemical compositional reservoir simulation, and provide a comparison of its results on alkaline-surfactant-polymer flooding with those of UTCHEM simulator. Our research has found that the existing chemical compositional model estimates the adsorption effect on the transport of a component reasonably well but it does not satisfy the pr...

Fixed dose combination (FDC) products are gaining more interest by pharma companies worldwide considering their importance in treating the disease and the increased safety/efficacy profile. Very few general guidelines are available with respect to FDCs in USA whereas Europe has some guidelines while India has just started developing such guidelines. Indian market is flooded with several irratio...

The paper presents recent studies on spatial and temporal characterization of the clogging of a large infiltration system and main factors affecting its evolution. Thickness, organic content, density, particle size distribution, biomass and saturated hydraulic conductivity were then evaluated during 10 campaigns from September 2009 to February 2011. The results show that the sediment accumulati...

Excess water in the form of waterlogged soil or deeper submergence (generically termed 'flooding') influences plant growth, survival and species distribution in many natural ecosystems. It also has a negative impact on crop growth and yield since many agricultural species are flooding intolerant. The often devastating effect of flooding on plant performance is related to its interference with g...

Flooding is a fundamental operation in wireless ad hoc networks to propagate control messages in the entire network. The traditional flooding scheme generates excessive packet retransmissions, resource contention, and collisions since every node forwards the packet at least once. Several flooding schemes have been proposed to avoid these problems. However, these unnecessary forwarding nodes rem...

This report presents a case study of a comprehensive sanitary survey on ca. 160 community drinking water supplies after a severe (post-Tsunami) flooding event in Sri Lanka. Sanitary inspection and microbiological and chemical water quality analyses were performed according to specifically-designed procedures established on the World Health Organization (WHO) guidelines. Significant hazards and ...

The remaining oil distribution and displacement mechanism of poly/surface dual flooding stage in medium high permeability reservoir are not clear. In this paper, the conditions Gangxi Area 3 Dagang Oilfield were taken as research object. Based on nuclear magnetic resonance large model physical simulation experiment, characterization micro macro residual start-up enhanced recovery experiment car...

This review summarizes the research on physiological responses to flooding of trees in the seasonal black-water wetland of the Mapire River in Venezuela. Inter-annual variability was found during 8 years of sampling, in spite of which a general picture emerged of increased stomatal conductance (gs) and photosynthetic rate (PN) during the flooded period to values as high as or higher than in pla...

salix integra thunb. is a shrub distributed in china along the huai river riparian zone, and plays an important role in water and soil conservation. s. integra shrub land is easily submerged during july to october due to the flooding of huai river. in order to characterize the physiological mechanisms of waterlogging tolerance of s. integra and to help rationally select waterlogging-tolerant sp...