Results 61 to 70 of about 106 (81)

基于多因素驱动的输电线路区域雷击跳闸风险评估

open access: yesGaoya dianqi
雷击是引发输电线路跳闸故障的主要原因之一,严重影响电网安全稳定运行。为有针对性地指导输电线路的防雷设计和改造,文中提出了基于多因素驱动的输电线路区域雷击跳闸风险评估方法。首先,综合考虑气象、电网、环境影响因素,构建完整有效的样本空间;其次,基于6种较优回归算法(XGBoost、RF、Bagging、GBRT、DT及KNN),对样本数据进行训练及验证;然后,选取拟合优度最高的XGBoost算法构建输电线路区域雷击跳闸风险评估模型;最后,算例结果表明:雷击故障点落在风险区域占75 ...
范凯   +4 more
doaj  

[Chinese guidelines for diagnosis and treatment of myelodysplastic neoplasms (2026)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Chinese Society of Hematology   +1 more
europepmc   +1 more source

[Chinese expert consensus on the clinical interpretation of donor-specific anti-HLA antibody test results in HLA-mismatched hematopoietic stem cell transplantation (2025)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Hematopoietic Stem Cell Application Group   +2 more
europepmc   +1 more source

[Chinese expert consensus on the diagnosis and treatment of acute graft-versus-host disease after hematopoietic stem cell transplantation (2024)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Hematopoietic Stem Cell Application Group   +2 more
europepmc   +1 more source

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