生物炭作为一种环境友好型材料广泛应用于土壤改良等领域,其在环境中老化形成生物炭胶体的凝聚与分散行为对生物炭在土壤中的施用功效及潜在风险具有重要影响。离子特异性效应是指不同离子,特别是同价的不同离子在不同体系中产生不同的性质差异,比... More >>
Heart of Darkness is the masterpiece of Joseph Conrad. It recounts the experiences of the sailor Marlow during his voyage up the Congo River in Africa. While previous studies have paid more attention to the psychological and moral... More >>
This study takes nine works from The Library of Chinese Classics as its corpus, categorizes them into informative, expressive, and operative types based on Reiss’ Text Type Theory, with a total corpus of around 1,800 Chinese chara... More >>
Amid deepening globalization and profound shifts in international dynamics, national identity education, especially the cultivation of national identity among the youth, has become a critical contemporary task for ideological and ... More >>
本文采用水溶液聚合法,以含有强亲水基团和耐盐基团的2-丙烯酰胺-2-甲基丙磺酸(AMPS)和含耐温基团的乙烯基吡咯烷酮(NVP)为共聚改性单体,以天然可降解的羧甲基纤维素钠(CMC)为接枝改性剂,以N,N’-亚甲基双丙烯酰胺(NM... More >>