正电性
1.any binary compound of tellurium with other more electropositive elements.
2.The elimination half-life time of positive, negative and PBS was 51.52min, 14.75min and 4.18min respectively. The toxicity of ACV liposome preparation was investigated by using index of eye irritation experiments .
3.a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal.
4.A compound containing nitrogen with another more electropositive element, such as phosphorus or a metal.
5.The Raman spectrum and SERS of glycine anhydride in acidic and basic media on positive silver colloids were recorded. Calculations of the vibration frequencies were performed for glycine anhydride by B3LYP at 6-31g(d) level. The assignment of Raman spectrum and SERS of glycine anhydride in acidic media were obtained with the help of calculation.
6.Relating to or designating electric charge of a sign opposite to that of an electron.
8.The applications of MSF MMH inorganic polymer drilling mud in Tarim Oilfield show the mud is completely suit to the deep interval at 5450m, which improved ROP, provented boreholeenlargement, reduced downhole problems and cutmud costs.
9.Because charged particles seek each other in order to neutralize themselves and achieve a more stable state, the surface of the polar cell membrane and the positively charged HIV peptide are drawn to one another.
10.Through analysis of lithology,physical characteristics and sensitivity for carbonate reservoir,MMH drilling / completion fluids for protecting fractured carbonate rock reservoir are developed. Water lock effect and stress sensitivity of carbonate reservoir is evaluated.
