Foam drainage gas production is a technology for low-pressure well in domestic and abroad industries. In Qinghai Oilfield’s Sebei Gasfield, sand existence often occurs during production. order to reveal the impacts of formation sands on production, lab test was conducted make study foam performances different agents case existence. A laboratory employed under varies scenes existence, recovery. ...

This article focuses on the physico-chemical investigation of the time evolution of self-assembled structures composed by oppositely charged surfactant monomers. The cationic components were represented by the well known cetyl-trimethyl-ammonium-bromide (CTAB) while the anionic monomers consisted of amphiphilic ribonucleotide derivatives, also called nucleo-lipids (NL). The latter were generate...

Recent research has reported many attractive benefits from short peptide amphiphiles. A practical route for them to enter the real world of applications is through formulation with conventional surfactants. This study reports the co-adsorption of the surfactant-like peptide, V6K, with conventional anionic and cationic surfactants at the solid/water interface. The time-dependant adsorption behav...

TiO2-SiO2 composites were synthesized using cetyl trimethyl ammonium bromide (CTAB) as the structure directing template. Self-assembly hexadecyltrimethyl- ammonium bromide TiO2-SiO2/(CTAB) were soaked into silver nitrate (AgNO3) aqueous solution. The Ag-TiO2-SiO2(Ag-TS) composite were prepared via a precipitation of AgBr in soaking process and its decomposition at calcination stage. Structural ...

Dryobalanops belong to a member of Dipterocarpaceae, which has high economic value. Due illegal harvesting for its wood, the population tends decrease every year, so rapid conservation effort was needed. D. oblongifolia and lanceolata were important members dryobalanops, have listed as endangered (EN), according IUCN. This study aims provide information on DNA isolation amplification process. d...

Our study includes removal of Cr(VI) by using mixed surfactants (Non-ionic: Cationic). A common cationic surfactant Cetyl trimethyl ammonium bromide(CTAB) with two different nonionic surfactant Triton X-100 and Tween-80 were used to remove Cr(VI) by micellar enhanced ultrafiltration technique.The effect of parameters such as initial feed metal ion concentration, pH and filtration time on % Reje...

To obtain a better understanding of the structural features characteristic of the equilibrated micelle a solubilized molecule acting as probe may be employed. A good probe is one whose selected physical properties are sensitive to the nature of the mioroenvironment it experiences and which are readily measured by experiment. The nature of the microenvironment includes the microvisco3ity, polari...

Prediction of the nucleation mechanism is one of the most critical factors in the design of a crystallization system. Information about the nucleation mechanism helps to control the size, shape, size distribution, and purity of the produced crystals. When the crystallization method is used for producing nanoparticles, the nucleation mechanism should be predicted. In this study, an empirical cor...

White Spot Disease (WSD) is a viral disease affecting crustaceans. Caused by the Syndrome Virus (WSSV), this has caused significant mortality in commercially cultivated marine shrimp species with severe impacts on farming industry and may be threat to wild stocks. Thorough studies molecular biology of pathogen are urgently needed improve understanding virus at level, including variation key pro...