A new identification method is proposed to solve the problem of the influence on the loaded excitation signals brought by high feedback gain augmentation in lateral-directional aerodynamic parameters identification of...A new identification method is proposed to solve the problem of the influence on the loaded excitation signals brought by high feedback gain augmentation in lateral-directional aerodynamic parameters identification of fly-by-wire（FBW） passenger airliners. Taking for example an FBW passenger airliner model with directional relaxed-static-stability, through analysis of its signal energy distribution and airframe frequency response, a new method is proposed for signal type selection, signal parameters design, and the appropriate frequency relationship between the aileron and rudder excitation signals. A simulation validation is presented of the FBW passenger airliner＇s lateral-directional aerodynamic parameters identification. The validation result demonstrates that the designed signal can excite the lateral-directional motion mode of the FBW passenger airliner adequately and persistently. Meanwhile, the relative errors of aerodynamic parameters are less than 5%.展开更多
Yuangang Village and Shipai Village in Tianhe District,Guangzhou City were taken for example to investigate living status and features of young migrant workers,and their satisfaction at living environment,dwelling nee...Yuangang Village and Shipai Village in Tianhe District,Guangzhou City were taken for example to investigate living status and features of young migrant workers,and their satisfaction at living environment,dwelling needs and willingness,on the basis of questionnaire survey and in-depth interview. According to comparative analysis of current situation and needs,housing problems of young migrant workers were summarized,and attentions in handling migrant workers' housing problems were given,i.e. diverse housing locations,beautifi cation of living environment,enriching housing types,equalization of public facilities,diverse housing supply modes.展开更多
卵黄抗体(Immunoglobulin of yolk,IgY)因在水生动物疾病中具有被动免疫疗效而受到广泛的关注。本文综述了IgY基本结构和理化性质的研究进展,重点介绍了IgY在水生动物细菌和病毒感染防控、治疗中的潜在应用,为今后IgY的研究和水产养殖...卵黄抗体(Immunoglobulin of yolk,IgY)因在水生动物疾病中具有被动免疫疗效而受到广泛的关注。本文综述了IgY基本结构和理化性质的研究进展,重点介绍了IgY在水生动物细菌和病毒感染防控、治疗中的潜在应用,为今后IgY的研究和水产养殖中的应用提供参考。展开更多
目的:分析《膝骨关节炎中医诊疗专家共识(2015年版)》(以下简称《共识》)在膝骨关节炎(knee osteoarthritis,KOA)研究中的应用情况。方法:分别以“膝骨关节炎中医诊疗专家共识(2015年版)”“Diagnosis and management of knee osteoarth...目的:分析《膝骨关节炎中医诊疗专家共识(2015年版)》(以下简称《共识》)在膝骨关节炎(knee osteoarthritis,KOA)研究中的应用情况。方法:分别以“膝骨关节炎中医诊疗专家共识(2015年版)”“Diagnosis and management of knee osteoarthritis:Chinese medicine expert consensus(2015)”为检索词,应用计算机检索中国知网、维普网、万方数据库、中国生物医学文献服务系统,并以“Diagnosis and management of knee osteoarthritis:Chinese medicine expert consensus(2015)”为检索词,应用计算机检索PubMed和Web of Science,检索时限均为2015年7月至2022年9月。将《共识》详情页“引证文献”(英文数据库界面为“Cited by”)栏目中的文献导出,文献筛选、数据提取后,统计《共识》被引频次,分析统计引证文献的发表时间、文献类型、发表期刊及关键词和《共识》被引内容。结果:共筛选615篇引证文献;中文版《共识》被引544次,英文版《共识》被引71次。根据引证文献发表时间统计,2015年2篇、2016年30篇、2017年59篇、2018年109篇、2019年115篇、2020年179篇、2021年95篇、2022年26篇;根据文献类型统计,期刊论文448篇、学位论文163篇、会议论文4篇;引证文献数量排名前5的期刊依次是《中医正骨》《新中医》《中国中医骨伤科杂志》《光明中医》《按摩与康复医学》;中医疗法关键词出现频次排名前5的依次是刺法、灸法、针刀疗法、中药内治、中药薰洗,西医疗法关键词出现频次排名前5的依次是玻璃酸钠、运动疗法、关节镜、全膝关节置换术、塞来昔布。《共识》被引内容中,1级标题内容按照被引频次排序依次是“膝骨关节炎的临床分期和辨证分型”“膝骨关节炎的诊断与影像学分级”“背景”“膝骨关节炎的治疗”“专家建议”;2级标题内容按照被引频次排序依次是“辨证分型”“诊断”“非药物疗法”“药物疗法”“影像学分级”“临床分期”;3级标题内容被引频次位于前5的依次是肝肾亏虚证、气滞血瘀证、寒湿痹阻证、气血虚弱证、中草药。结论:《共识》在KOA研究领域得到了广泛应用,对指导KOA的中医药治疗发挥了重要作用。展开更多
文摘A new identification method is proposed to solve the problem of the influence on the loaded excitation signals brought by high feedback gain augmentation in lateral-directional aerodynamic parameters identification of fly-by-wire（FBW） passenger airliners. Taking for example an FBW passenger airliner model with directional relaxed-static-stability, through analysis of its signal energy distribution and airframe frequency response, a new method is proposed for signal type selection, signal parameters design, and the appropriate frequency relationship between the aileron and rudder excitation signals. A simulation validation is presented of the FBW passenger airliner＇s lateral-directional aerodynamic parameters identification. The validation result demonstrates that the designed signal can excite the lateral-directional motion mode of the FBW passenger airliner adequately and persistently. Meanwhile, the relative errors of aerodynamic parameters are less than 5%.
基金Sponsored by Outstanding Young Innovative Talent Cultivation Program of Guangdong Colleges and Universities(WYM11049)National Undergraduate Innovation and Entrepreneurship Training(1184512267)
文摘Yuangang Village and Shipai Village in Tianhe District,Guangzhou City were taken for example to investigate living status and features of young migrant workers,and their satisfaction at living environment,dwelling needs and willingness,on the basis of questionnaire survey and in-depth interview. According to comparative analysis of current situation and needs,housing problems of young migrant workers were summarized,and attentions in handling migrant workers' housing problems were given,i.e. diverse housing locations,beautifi cation of living environment,enriching housing types,equalization of public facilities,diverse housing supply modes.
文摘目的:分析《膝骨关节炎中医诊疗专家共识(2015年版)》(以下简称《共识》)在膝骨关节炎(knee osteoarthritis,KOA)研究中的应用情况。方法:分别以“膝骨关节炎中医诊疗专家共识(2015年版)”“Diagnosis and management of knee osteoarthritis:Chinese medicine expert consensus(2015)”为检索词,应用计算机检索中国知网、维普网、万方数据库、中国生物医学文献服务系统,并以“Diagnosis and management of knee osteoarthritis:Chinese medicine expert consensus(2015)”为检索词,应用计算机检索PubMed和Web of Science,检索时限均为2015年7月至2022年9月。将《共识》详情页“引证文献”(英文数据库界面为“Cited by”)栏目中的文献导出,文献筛选、数据提取后,统计《共识》被引频次,分析统计引证文献的发表时间、文献类型、发表期刊及关键词和《共识》被引内容。结果:共筛选615篇引证文献;中文版《共识》被引544次,英文版《共识》被引71次。根据引证文献发表时间统计,2015年2篇、2016年30篇、2017年59篇、2018年109篇、2019年115篇、2020年179篇、2021年95篇、2022年26篇;根据文献类型统计,期刊论文448篇、学位论文163篇、会议论文4篇;引证文献数量排名前5的期刊依次是《中医正骨》《新中医》《中国中医骨伤科杂志》《光明中医》《按摩与康复医学》;中医疗法关键词出现频次排名前5的依次是刺法、灸法、针刀疗法、中药内治、中药薰洗,西医疗法关键词出现频次排名前5的依次是玻璃酸钠、运动疗法、关节镜、全膝关节置换术、塞来昔布。《共识》被引内容中,1级标题内容按照被引频次排序依次是“膝骨关节炎的临床分期和辨证分型”“膝骨关节炎的诊断与影像学分级”“背景”“膝骨关节炎的治疗”“专家建议”;2级标题内容按照被引频次排序依次是“辨证分型”“诊断”“非药物疗法”“药物疗法”“影像学分级”“临床分期”;3级标题内容被引频次位于前5的依次是肝肾亏虚证、气滞血瘀证、寒湿痹阻证、气血虚弱证、中草药。结论:《共识》在KOA研究领域得到了广泛应用,对指导KOA的中医药治疗发挥了重要作用。
