To investigate the impact of soaking strategy on entire shut-in, flowback, and production processes following hydraulic fracturing, we developed a core simulation system using nuclear magnetic resonance technology to track fluid migration across process. This system, with specially designed sample, enabled us quantify contribution each stage oil analyze stimulation mechanism from an integrated ...

Preparative HPLC 5}30 '20 2}20 0.01}1 High purity solvent required Higher resolution See also: II/Chromatography: Countercurrent Chromatography and High-Speed Countercurrent Chromatography: Instrumentation. Chromatography: Liquid: Countercurrent Liquid Chromatography. III/Alkaloids: Gas Chromatography; High-Speed Countercurrent Chromatography; Liquid Chromatography; Thin-Layer (Planar) Chromato...

Enhancement of salinity tolerance during seed germination is very important for direct seeding in rice. In this study, the salt-tolerant japonica landrace Jiucaiqing was used to determine the regulators that are involved in seed imbibition under salt stress. Briefly, the comparative proteomic analysis was conducted between dry (0 h) and imbibed (24 h) seeds with 150 mM NaCl. Under salt stress, ...

On examination of Bactec blood cultures for pneumococcal antigen by countercurrent immunoelectrophoresis the consistent presence of a non-specific protein band caused problems with the interpretation of results, even in laboratories experienced in performing countercurrent immunoelectrophoresis. When the Bactec blood culture system is used, countercurrent immunoelectrophoresis should not be rel...

Using a bioassay for inhibition of plant growth and a combination of two countercurrent chromatographies: rotation locular countercurrent chromatography and droplet countercurrent chromatography, two biologically active glycosidal alkaloids, solasonine and solamargine were isolated from fresh ripe fruit of Solanum incanum. The combination of these chromatographic techniques has established an e...

The imbibition of a solid island on a substrate with a square array of pillars is studied by means of kinetic Monte Carlo simulations. Imbibition is found to occur via an intermediate state where an island sits on the film. Two dynamical regimes are identified depending on the geometry of the substrate: a stochastic regime, where the dynamics are controlled by the nucleation-limited motion of t...

Spontaneous imbibition happens in many natural and chemical engineering processes in which the mean advancing front usually follows Lucas-Washburn's law. However it has been found that the scaling law does not apply in many cases. There have been few criteria to determine under what conditions the Washburn law works. The effect of gravity on spontaneous imbibition in porous media was investigat...