Since the outbreak of COVID-19,severe acute respiratory syndrome coronavirus 2 genome is still mutating,forming a variety of variants with strong transmission capacity,causing the spread of the epidemic worldwide,posi...Since the outbreak of COVID-19,severe acute respiratory syndrome coronavirus 2 genome is still mutating,forming a variety of variants with strong transmission capacity,causing the spread of the epidemic worldwide,posing a serious threat to people's physical and mental health,and posing a major challenge to global public health.Omicron remains the main variant in several outbreaks worldwide,accounting for about 99%of the global genetic sequence.Recently,the World Health Organization announced that the subvariant of Omicron BA.5 has been found in more than 100 countries and regions around the world,causing the global epidemic rebound.However,there are few studies on the subvariant BA.5.This article reviews the latest research progress in epidemiology,infectivity,pathogenicity,vaccine and monoclonal antibody protection against Omicron subvariant BA.5,in order to provide reference for scientific prevention and control of Omicron subvariant BA.5.展开更多
以薄壁塑件的翘曲变形为研究目标,运用Moldflow软件,结合软件中的Number of sub-variables实验设计方法,分析了两种不同分析序列对塑件翘曲变形的影响。结果表明:分析序列一中关键参数为保压时间,分析序列二中关键参数为保压时间和保压...以薄壁塑件的翘曲变形为研究目标,运用Moldflow软件,结合软件中的Number of sub-variables实验设计方法,分析了两种不同分析序列对塑件翘曲变形的影响。结果表明:分析序列一中关键参数为保压时间,分析序列二中关键参数为保压时间和保压压力;分析序列二相比分析序列一的翘曲变形量降低了49.4%;综合两组分析序列推荐的工艺参数,可使其翘曲变形均有明显改善,分析序列二相比分析序列一降低了41.2%。分析序列二更适合翘曲变形分析,同时综合两种分析序列来优化工艺参数,能有效改善翘曲变形问题。展开更多
基金COVID-19 Emergency Medical Research Project of 940 Hospital(No.20yjky020)General Project of Huoshenshan Hospital Scientific Research Fund(No.HSS-217)。
文摘Since the outbreak of COVID-19,severe acute respiratory syndrome coronavirus 2 genome is still mutating,forming a variety of variants with strong transmission capacity,causing the spread of the epidemic worldwide,posing a serious threat to people's physical and mental health,and posing a major challenge to global public health.Omicron remains the main variant in several outbreaks worldwide,accounting for about 99%of the global genetic sequence.Recently,the World Health Organization announced that the subvariant of Omicron BA.5 has been found in more than 100 countries and regions around the world,causing the global epidemic rebound.However,there are few studies on the subvariant BA.5.This article reviews the latest research progress in epidemiology,infectivity,pathogenicity,vaccine and monoclonal antibody protection against Omicron subvariant BA.5,in order to provide reference for scientific prevention and control of Omicron subvariant BA.5.
文摘以薄壁塑件的翘曲变形为研究目标,运用Moldflow软件,结合软件中的Number of sub-variables实验设计方法,分析了两种不同分析序列对塑件翘曲变形的影响。结果表明:分析序列一中关键参数为保压时间,分析序列二中关键参数为保压时间和保压压力;分析序列二相比分析序列一的翘曲变形量降低了49.4%;综合两组分析序列推荐的工艺参数,可使其翘曲变形均有明显改善,分析序列二相比分析序列一降低了41.2%。分析序列二更适合翘曲变形分析,同时综合两种分析序列来优化工艺参数,能有效改善翘曲变形问题。
