The wavelength variation of a laser-dye-type random laser is observed experimentally.It is found that the emitting wavelength of a random laser changes with the change of concentration of the gain material.Also,the ac...The wavelength variation of a laser-dye-type random laser is observed experimentally.It is found that the emitting wavelength of a random laser changes with the change of concentration of the gain material.Also,the actual radiation wavelength is influenced by the pumping rate of the source,the cavity competition and the concentration of scatterers.展开更多
虎杖Polygoni Cuspidati Rhizoma et Radix在中国已有数千年治疗和预防疾病的历史,可用于改善腹泻、咳嗽、黄疸、炎症、闭经、烧伤和高脂血等症状。虎杖化学成分包括醌类、二苯乙烯类、黄酮类、苯丙素类等化合物。现代药理学和临床研究...虎杖Polygoni Cuspidati Rhizoma et Radix在中国已有数千年治疗和预防疾病的历史,可用于改善腹泻、咳嗽、黄疸、炎症、闭经、烧伤和高脂血等症状。虎杖化学成分包括醌类、二苯乙烯类、黄酮类、苯丙素类等化合物。现代药理学和临床研究表明,虎杖可用于治疗炎症、糖尿病、痛风、癌症、病毒性疾病、细菌感染性疾病、神经退行性疾病等,尤其对冠状病毒引起的呼吸性疾病具有良好抑制作用。系统地总结了近几年虎杖的国内外研究文献,从化学成分及其药理作用的角度展开了综述,为虎杖药用资源进一步开发和应用提供依据,也为虎杖在抗击新型冠状病毒肺炎疫情中的应用提供科学依据。展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos.60677006 and 11074024.
文摘The wavelength variation of a laser-dye-type random laser is observed experimentally.It is found that the emitting wavelength of a random laser changes with the change of concentration of the gain material.Also,the actual radiation wavelength is influenced by the pumping rate of the source,the cavity competition and the concentration of scatterers.
文摘虎杖Polygoni Cuspidati Rhizoma et Radix在中国已有数千年治疗和预防疾病的历史,可用于改善腹泻、咳嗽、黄疸、炎症、闭经、烧伤和高脂血等症状。虎杖化学成分包括醌类、二苯乙烯类、黄酮类、苯丙素类等化合物。现代药理学和临床研究表明,虎杖可用于治疗炎症、糖尿病、痛风、癌症、病毒性疾病、细菌感染性疾病、神经退行性疾病等,尤其对冠状病毒引起的呼吸性疾病具有良好抑制作用。系统地总结了近几年虎杖的国内外研究文献,从化学成分及其药理作用的角度展开了综述,为虎杖药用资源进一步开发和应用提供依据,也为虎杖在抗击新型冠状病毒肺炎疫情中的应用提供科学依据。
