The conditions of preparation and performance of a new structure of cationic organic polymeric micropaticles (CPMP) mainly composed of styrene and DADMAC were studied. And its application on retention and drainage on ...The conditions of preparation and performance of a new structure of cationic organic polymeric micropaticles (CPMP) mainly composed of styrene and DADMAC were studied. And its application on retention and drainage on bleached hardwood pulp was investigated and compared with that of APAM and CPAM. The results show that the retention and drainage of CPMP on pulp is in positive proportion to the rise of the potential of the solution, and the first-pass retention ratio of bleached hardwood pulp goes up with the increase of the CPMP content. The functions of CPMP and CPAM are affected less by the shear force and the pH value of the system compared to that of APAM, and effect on retention of CPMP3 is appropriate to that of CPAM, but superior to that of APAM.展开更多
Within the target range from 0 to 0.1217 times the solar radius, the probability of 7Be existing as an ion with one or two bound electrons is calculated, which is turned out to be about 4.69 %, and about 95.31 % 7Be n...Within the target range from 0 to 0.1217 times the solar radius, the probability of 7Be existing as an ion with one or two bound electrons is calculated, which is turned out to be about 4.69 %, and about 95.31 % 7Be nucleus is completely ionized. After considering the influence of that portion of incompletely ionized 7Be, the renewly calculative result shows that the solar neutrino flux of 7Be will decrease from 45 000 m-2s-1 to 43 000 m-2s-1, and the predicted value of the 8B solar neutrino flux will increase from 515 m-2s-1 to 535 m-2s-1.展开更多
文摘The conditions of preparation and performance of a new structure of cationic organic polymeric micropaticles (CPMP) mainly composed of styrene and DADMAC were studied. And its application on retention and drainage on bleached hardwood pulp was investigated and compared with that of APAM and CPAM. The results show that the retention and drainage of CPMP on pulp is in positive proportion to the rise of the potential of the solution, and the first-pass retention ratio of bleached hardwood pulp goes up with the increase of the CPMP content. The functions of CPMP and CPAM are affected less by the shear force and the pH value of the system compared to that of APAM, and effect on retention of CPMP3 is appropriate to that of CPAM, but superior to that of APAM.
基金the National Natural Science Foundation of China (No. 10275073) and also by the Key Laboratory of Cosmic Ray and Astrophysics+1 种基金 Institute of High Energy Physics the Chinese Academy of Sciences.
文摘Within the target range from 0 to 0.1217 times the solar radius, the probability of 7Be existing as an ion with one or two bound electrons is calculated, which is turned out to be about 4.69 %, and about 95.31 % 7Be nucleus is completely ionized. After considering the influence of that portion of incompletely ionized 7Be, the renewly calculative result shows that the solar neutrino flux of 7Be will decrease from 45 000 m-2s-1 to 43 000 m-2s-1, and the predicted value of the 8B solar neutrino flux will increase from 515 m-2s-1 to 535 m-2s-1.
