By exploring the application of piano in Chinese pop music arrangements,this article aims to enhance the understanding of the position of piano in pop music and provide useful insights and references for the future de...By exploring the application of piano in Chinese pop music arrangements,this article aims to enhance the understanding of the position of piano in pop music and provide useful insights and references for the future development of Chinese pop music.Starting from the unique position of piano in Chinese pop music arrangements,the article analyses in detail the specific applications of piano in Chinese pop music arrangements.The analysis finds that the piano has been deeply integrated into the bloodline of Chinese popular music and become an indispensable part.From simple melodic embellishments to complex arrangement ideas,the piano has injected endless vitality and vigor into popular music with its unique timbre and expressive power.展开更多
国家新型基础设施建设给各运营商带来了新的发展契机,纷纷布局以云网融合为特征的数据中心建设。本文重点分析运营商如何打造云网一体化网络服务提供点(Point of Presence,POP),满足不同客户差异化的入云或云间组网需求,实现云网能力端...国家新型基础设施建设给各运营商带来了新的发展契机,纷纷布局以云网融合为特征的数据中心建设。本文重点分析运营商如何打造云网一体化网络服务提供点(Point of Presence,POP),满足不同客户差异化的入云或云间组网需求,实现云网能力端到端快速贯通,云资源池快速规模化部署,缩短云资源池或数据中心接入网络的建设和开通周期。展开更多
建立叠层封装(packaging on packaging,POP)堆叠焊点有限元模型,基于ANAND本构方程,分析了热循环载荷下焊点应力分布状态及热疲劳寿命;基于灵敏度法分析了POP封装结构参数对焊点热应力的影响显著性;基于响应面法建立POP堆叠焊点热应力...建立叠层封装(packaging on packaging,POP)堆叠焊点有限元模型,基于ANAND本构方程,分析了热循环载荷下焊点应力分布状态及热疲劳寿命;基于灵敏度法分析了POP封装结构参数对焊点热应力的影响显著性;基于响应面法建立POP堆叠焊点热应力与结构参数的回归方程,并结合粒子群算法对结构参数进行了优化.结果表明,焊点与铜焊盘接触处应力最大,该处会率先产生裂纹,上层焊点高度和下层焊点高度对POP堆叠焊点热应力影响较为显著;最优结构参数水平组合为上层焊点高度0.35 mm、下层焊点高度0.28 mm、中层印刷电路板厚度0.26 mm,优化后上、下两层焊点的最大热应力分别下降了0.816和1.271 MPa,延长了POP堆叠焊点热疲劳寿命.展开更多
目的探讨经会阴四维超声联合盆腔器官脱垂定量评估系统(Pelvic Organ Prolapse Quantitation,POP-Q)在盆底脏器脱垂临床中的应用效果。方法选取2020年10月—2022年12月启东市妇幼保健院收治的32例盆底器官脱垂患者为观察组,并选择同期3...目的探讨经会阴四维超声联合盆腔器官脱垂定量评估系统(Pelvic Organ Prolapse Quantitation,POP-Q)在盆底脏器脱垂临床中的应用效果。方法选取2020年10月—2022年12月启东市妇幼保健院收治的32例盆底器官脱垂患者为观察组,并选择同期32例未生育健康女性为对照组。两组均接受盆底四维超声,观察不同状态下盆隔裂孔周长、盆隔裂孔面积、不同程度脱垂女性盆隔裂孔周长及盆隔裂孔面积。结果静息、Valsalva、缩肛状态下,观察组盆膈裂孔周长、盆膈裂孔面积分别为(15.62±1.43)、(15.61±1.45)、(13.81±1.74)cm及(16.21±3.08)、(25.81±5.83)、(13.35±2.91)cm2,均高于对照组的,差异有统计学意义(t=9.082、4.403、6.339、8.896、10.906、7.099,P<0.001)。观察组Valsalva-静息及静息-缩肛时盆膈裂孔周长、盆膈裂孔面积比对照组大,差异有统计学意义(P<0.05)。重度组静息、Valsalva、缩肛状态下盆膈裂孔周长及盆膈裂孔面积较轻中度组大,差异有统计学意义(P<0.05)。结论经会阴四维超声盆膈裂孔解剖结构和功能变化检查能够反映盆底脏器脱垂患者部分功能变化,盆底脏器脱垂严重程度与盆膈裂孔大小存在紧密联系。展开更多
Normal corn germplasm can be used to improve popcorn （Zea mays L.） through 1-2 backcrosses with popcorn as recurrent parents. Popping characteristics of derived lines from popcorn × dent or flint corn crosses p...Normal corn germplasm can be used to improve popcorn （Zea mays L.） through 1-2 backcrosses with popcorn as recurrent parents. Popping characteristics of derived lines from popcorn × dent or flint corn crosses play a determinant role in popcorn breeding. Advanced backcross QTL methods can effectively combine QTL identification and plant breeding. 220 selected BC2F2 families developed from a cross between Dan 232, a dent corn inbred line, and N04, an elite popcorn inbred line, were evaluated for three popping characteristics, popping volume, flake size, and popping rate, under two environmental conditions. Using composite interval mapping, a total of 10 significant QTLs were detected, and of these, 2 to 4 QTLs were identified for each trait. Six QTLs had favorable alleles contributed by Dan 232. Comparison with the 15 QTLs detected in the F2：3 families showed that 3 QTLs were the same in both populations. The QTLs should be redetected in generations developed through severe selection. Improved N04 and near isogenic lines could be developed from this BC2F2 population through selfing or another 1 to 2 backcrosses with N04.展开更多
文摘By exploring the application of piano in Chinese pop music arrangements,this article aims to enhance the understanding of the position of piano in pop music and provide useful insights and references for the future development of Chinese pop music.Starting from the unique position of piano in Chinese pop music arrangements,the article analyses in detail the specific applications of piano in Chinese pop music arrangements.The analysis finds that the piano has been deeply integrated into the bloodline of Chinese popular music and become an indispensable part.From simple melodic embellishments to complex arrangement ideas,the piano has injected endless vitality and vigor into popular music with its unique timbre and expressive power.
文摘国家新型基础设施建设给各运营商带来了新的发展契机,纷纷布局以云网融合为特征的数据中心建设。本文重点分析运营商如何打造云网一体化网络服务提供点(Point of Presence,POP),满足不同客户差异化的入云或云间组网需求,实现云网能力端到端快速贯通,云资源池快速规模化部署,缩短云资源池或数据中心接入网络的建设和开通周期。
文摘目的探讨经会阴四维超声联合盆腔器官脱垂定量评估系统(Pelvic Organ Prolapse Quantitation,POP-Q)在盆底脏器脱垂临床中的应用效果。方法选取2020年10月—2022年12月启东市妇幼保健院收治的32例盆底器官脱垂患者为观察组,并选择同期32例未生育健康女性为对照组。两组均接受盆底四维超声,观察不同状态下盆隔裂孔周长、盆隔裂孔面积、不同程度脱垂女性盆隔裂孔周长及盆隔裂孔面积。结果静息、Valsalva、缩肛状态下,观察组盆膈裂孔周长、盆膈裂孔面积分别为(15.62±1.43)、(15.61±1.45)、(13.81±1.74)cm及(16.21±3.08)、(25.81±5.83)、(13.35±2.91)cm2,均高于对照组的,差异有统计学意义(t=9.082、4.403、6.339、8.896、10.906、7.099,P<0.001)。观察组Valsalva-静息及静息-缩肛时盆膈裂孔周长、盆膈裂孔面积比对照组大,差异有统计学意义(P<0.05)。重度组静息、Valsalva、缩肛状态下盆膈裂孔周长及盆膈裂孔面积较轻中度组大,差异有统计学意义(P<0.05)。结论经会阴四维超声盆膈裂孔解剖结构和功能变化检查能够反映盆底脏器脱垂患者部分功能变化,盆底脏器脱垂严重程度与盆膈裂孔大小存在紧密联系。
基金funded by the Natural Science Founda-tion of Henan Province of China (0511032900).
文摘Normal corn germplasm can be used to improve popcorn （Zea mays L.） through 1-2 backcrosses with popcorn as recurrent parents. Popping characteristics of derived lines from popcorn × dent or flint corn crosses play a determinant role in popcorn breeding. Advanced backcross QTL methods can effectively combine QTL identification and plant breeding. 220 selected BC2F2 families developed from a cross between Dan 232, a dent corn inbred line, and N04, an elite popcorn inbred line, were evaluated for three popping characteristics, popping volume, flake size, and popping rate, under two environmental conditions. Using composite interval mapping, a total of 10 significant QTLs were detected, and of these, 2 to 4 QTLs were identified for each trait. Six QTLs had favorable alleles contributed by Dan 232. Comparison with the 15 QTLs detected in the F2：3 families showed that 3 QTLs were the same in both populations. The QTLs should be redetected in generations developed through severe selection. Improved N04 and near isogenic lines could be developed from this BC2F2 population through selfing or another 1 to 2 backcrosses with N04.
