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图型区块链的分级医药溯源模型设计
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作者 李莉 杨祉坤 +2 位作者 张超 吴怡 陈云鹏 《计算机工程与设计》 北大核心 2022年第12期3555-3562,共8页
为解决传统单链区块链医药溯源系统吞吐率低、存储开销大的问题,提出图型区块链分级医药溯源模型。将图型区块链引入医药溯源领域中,在原有图型区块链结构上进行分区处理,根据标志字段将医药信息进行分级并存储到对应的分区中,提升溯源... 为解决传统单链区块链医药溯源系统吞吐率低、存储开销大的问题,提出图型区块链分级医药溯源模型。将图型区块链引入医药溯源领域中,在原有图型区块链结构上进行分区处理,根据标志字段将医药信息进行分级并存储到对应的分区中,提升溯源信息验证效率,增大吞吐量。将全网节点划分为多个子网络,每个节点只需要存对应的信息,降低节点存储开销。实验结果表明,该模型在吞吐量、验证效率、单个节点存储开销方面均优于现有医药溯源系统。 展开更多
关键词 DAG区块链 图型区块链分区 医药溯源 标志字段处理 MCMC算法
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SARS-CoV-2 Infected Cases with Untraceable Epidemic Origin:Its Values,Identification and TCM Treatment in Preventing Recurrence 被引量:1
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作者 LI Kai PIERRE Siroisc +1 位作者 DAI Ai-Guo LIAO Duan-Fang 《Digital Chinese Medicine》 2020年第2期133-138,共6页
During the outbreak of coronavirus disease 2019(COVID-19),the identification of a SARS-CoV-2 infected case with untraceable epidemic origin has three values:(1)the region has community transmission of the virus;(2)a c... During the outbreak of coronavirus disease 2019(COVID-19),the identification of a SARS-CoV-2 infected case with untraceable epidemic origin has three values:(1)the region has community transmission of the virus;(2)a certain portion of population in the community is getting immunized and more individuals have already been immunized;(3)an unpredictable future risk exists for regions where there are no infected cases with untraceable epidemic origin.Minimizing or avoiding the aggregation infection through individuals with no clinical symptoms is crucial and possible as its occurrence is mainly attributed to the local environment as opposed to the super spreader with or without clinical symptoms.As infected cases are not necessarily positive with gene test by definition,proper application of gene test is crucial in the identification of asymptomatic cases.In the early stage of an outbreak of infectious disease,gene test can be used to identify asymptomatic cases but it should not be used to exclude cases with typical clinical symptoms and signs.In the middle or late stages of an outbreak gene test should be applied in evaluation of infection rate of the population of a region,in addition to be used in spreader identification and isolation.Although asymptomatic cases are attributed to the overwhelming effect of personalized defense against pathogens,they are still a source of infection.Asymptomatic cases are considered to be Qi deficiency and with lingering toxicity in traditional Chinese medicine(TCM).Treatment in such cases,typically,involves therapy focused on replenishing the Qi,tonifying the lung,clearing the fever,and detoxification in order to return to a normal health condition.The recommended Chinese medicines include Qing Fei Pai Du Decoction,Yi Qi Qu Du Decoction,Xuan Fei Bai Du Granule,Lian Hua Qing Wen Capsule(Granule),and Jin Hua Qing Gan Granule,etc. 展开更多
关键词 SARS-CoV-2 Epidemic origin TCM treatment ASYMPTOMATIC Aggregation infection
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