The influences of chlorine dioxide bleaching of NaOH-AQ wheat straw pulp were studied in this paper. The results showed that the optimal conditions were as follows : chlorine dioxide dosage 1.0%, initial pH 4.0, pulp ...The influences of chlorine dioxide bleaching of NaOH-AQ wheat straw pulp were studied in this paper. The results showed that the optimal conditions were as follows : chlorine dioxide dosage 1.0%, initial pH 4.0, pulp consistency 8% and 70℃ for 150 minutes. Furthermore, some ways of rebuild the conventional CEH bleaching sequence were put forward, such as CED, DED, DCED, and we draw a conclusion that CED, DCED has higher bleaching efficiency than the CEH bleaching process.展开更多
The article reviews the development of political science in China in the last century, especially in the last 30 years. It shows that the discipline has gone through two stages, namely, uncritical learning and gullibl...The article reviews the development of political science in China in the last century, especially in the last 30 years. It shows that the discipline has gone through two stages, namely, uncritical learning and gullible emulating. It is entering a new stage： conscious indigenization of political science. It argues that indigenization is not an easy task even for indigenous academics. Therefore a project of indigenization requires a conscious and active effort on their part. Without critical introspection, indigenization is impossible.展开更多
文摘The influences of chlorine dioxide bleaching of NaOH-AQ wheat straw pulp were studied in this paper. The results showed that the optimal conditions were as follows : chlorine dioxide dosage 1.0%, initial pH 4.0, pulp consistency 8% and 70℃ for 150 minutes. Furthermore, some ways of rebuild the conventional CEH bleaching sequence were put forward, such as CED, DED, DCED, and we draw a conclusion that CED, DCED has higher bleaching efficiency than the CEH bleaching process.
文摘The article reviews the development of political science in China in the last century, especially in the last 30 years. It shows that the discipline has gone through two stages, namely, uncritical learning and gullible emulating. It is entering a new stage： conscious indigenization of political science. It argues that indigenization is not an easy task even for indigenous academics. Therefore a project of indigenization requires a conscious and active effort on their part. Without critical introspection, indigenization is impossible.
