Regularization method is an effective method for solving ill\|posed equation. In this paper the unbiased estimation formula of unit weight standard deviation in the regularization solution is derived and the formula i...Regularization method is an effective method for solving ill\|posed equation. In this paper the unbiased estimation formula of unit weight standard deviation in the regularization solution is derived and the formula is verified with numerical case of 1 000 sample data by use of the typical ill\|posed equation, i.e. the Fredholm integration equation of the first kind.展开更多
This paper deals with the boundedness and compactness of the weighted composition operators from the F（p, q, s） spaces, including Hardy space, Bergman space, Qp space, BMOA space, Besov space and α-Bloch space, to ...This paper deals with the boundedness and compactness of the weighted composition operators from the F（p, q, s） spaces, including Hardy space, Bergman space, Qp space, BMOA space, Besov space and α-Bloch space, to Bers-type spaces Hv^∞（ or little Bers-type spaces Hv,o∞ ）, where v is normal.展开更多
In this paper, we study the compact operators on weighted Bergman spaces of the unit ball. Extending Miao and Zheng＇result in 2004, we obtain the necessary and sufficient conditions for the operator to be compact on ...In this paper, we study the compact operators on weighted Bergman spaces of the unit ball. Extending Miao and Zheng＇result in 2004, we obtain the necessary and sufficient conditions for the operator to be compact on weighted Bergman spaces of the unit ball under some integrable conditions.展开更多
In this paper we mainly consider little Hankel operators with squareintegrable symbols on the weighted Bergman spaces of the unit ball.We obtain that Schatten class of little Hankel operators is equivalent to Schatten...In this paper we mainly consider little Hankel operators with squareintegrable symbols on the weighted Bergman spaces of the unit ball.We obtain that Schatten class of little Hankel operators is equivalent to Schatten class of positive Toeplitz operators under the conditions that SMO（f） ∈ L p/2 （B n,dλ） and 2 ≤ p ∞,which is very important to research the relation between Toeplitz operators and little Hankel operators.展开更多
分析质量改进管理模式在降低新生儿重症监护室(neonatal intensive care unit,NICU)极低出生体重早产儿抗生素使用时间中的应用价值。选取2021年10月—2024年9月NICU收治的96例极低出生体重早产儿为研究对象,采用随机数字表法将其分为...分析质量改进管理模式在降低新生儿重症监护室(neonatal intensive care unit,NICU)极低出生体重早产儿抗生素使用时间中的应用价值。选取2021年10月—2024年9月NICU收治的96例极低出生体重早产儿为研究对象,采用随机数字表法将其分为对照组和观察组,每组各48例。对照组采取常规抗生素管理模式,观察组采取基于质量改进方法的抗生素管理模式。比较两组抗生素使用时间、抗生素使用强度、抗生素用药频率、预后指标、家长满意度。结果显示,观察组抗生素使用时间短于对照组,抗生素使用强度、抗生素用药频率低于对照组(P<0.05);观察组住院时间短于对照组,住院费用低于对照组,医院感染发生率低于对照组(P<0.05);观察组家长满意度高于对照组(P<0.05)。研究发现,质量改进管理模式的应用可以缩短NICU极低出生体重早产儿抗生素使用时间以及住院时间,降低医院感染发生率,可推广使用。展开更多
文摘Regularization method is an effective method for solving ill\|posed equation. In this paper the unbiased estimation formula of unit weight standard deviation in the regularization solution is derived and the formula is verified with numerical case of 1 000 sample data by use of the typical ill\|posed equation, i.e. the Fredholm integration equation of the first kind.
基金Supported by the National Natural Science Foundation of China (10771064)the Natural Science Foundation of Zhejiang province (Y6090036+1 种基金Y7080197,Y606197)the Foundation of Department of Education of Zhejiang Province (20070482)
文摘This paper deals with the boundedness and compactness of the weighted composition operators from the F（p, q, s） spaces, including Hardy space, Bergman space, Qp space, BMOA space, Besov space and α-Bloch space, to Bers-type spaces Hv^∞（ or little Bers-type spaces Hv,o∞ ）, where v is normal.
基金Supported by the National Natural Science Foundation of China (Grant Nos. 1067102810971020)
文摘In this paper, we study the compact operators on weighted Bergman spaces of the unit ball. Extending Miao and Zheng＇result in 2004, we obtain the necessary and sufficient conditions for the operator to be compact on weighted Bergman spaces of the unit ball under some integrable conditions.
文摘In this paper we mainly consider little Hankel operators with squareintegrable symbols on the weighted Bergman spaces of the unit ball.We obtain that Schatten class of little Hankel operators is equivalent to Schatten class of positive Toeplitz operators under the conditions that SMO（f） ∈ L p/2 （B n,dλ） and 2 ≤ p ∞,which is very important to research the relation between Toeplitz operators and little Hankel operators.
文摘分析质量改进管理模式在降低新生儿重症监护室(neonatal intensive care unit,NICU)极低出生体重早产儿抗生素使用时间中的应用价值。选取2021年10月—2024年9月NICU收治的96例极低出生体重早产儿为研究对象,采用随机数字表法将其分为对照组和观察组,每组各48例。对照组采取常规抗生素管理模式,观察组采取基于质量改进方法的抗生素管理模式。比较两组抗生素使用时间、抗生素使用强度、抗生素用药频率、预后指标、家长满意度。结果显示,观察组抗生素使用时间短于对照组,抗生素使用强度、抗生素用药频率低于对照组(P<0.05);观察组住院时间短于对照组,住院费用低于对照组,医院感染发生率低于对照组(P<0.05);观察组家长满意度高于对照组(P<0.05)。研究发现,质量改进管理模式的应用可以缩短NICU极低出生体重早产儿抗生素使用时间以及住院时间,降低医院感染发生率,可推广使用。
