In this paper, we discuss the matrix equation AXB = C. We obtain a terse expression of weighted least-squares solution by applying the canonical correlation decomposition(CCD), we discuss the sufficient and necessary ...In this paper, we discuss the matrix equation AXB = C. We obtain a terse expression of weighted least-squares solution by applying the canonical correlation decomposition(CCD), we discuss the sufficient and necessary conditions for existence of Hermitian solutions, and derive a general form of the Hermite solutions.We also derive the expression of the optimal approximation solution in the set of Hermite soluti6ns to given matrix.展开更多
文章利用数值模拟方法研究了COREX预还原竖炉内煤气停留时间分布(RTD)特性,分析了CGD (central gas distribution)装置对炉内煤气RTD分布特性的影响,并对不同熔炼率下炉内煤气RTD规律进行了研究。模拟结果表明,安装CGD后,增加了竖炉底...文章利用数值模拟方法研究了COREX预还原竖炉内煤气停留时间分布(RTD)特性,分析了CGD (central gas distribution)装置对炉内煤气RTD分布特性的影响,并对不同熔炼率下炉内煤气RTD规律进行了研究。模拟结果表明,安装CGD后,增加了竖炉底部中心供气,提高了煤气平均停留时间。此外,CGD的安装降低了炉内平均停留时间的无量纲方差,且有效减少了炉内死区体积分数,有利于炉内气固相间的还原反应及传质、传热。随着熔炼率增加,炉内煤气平均停留时间缩短,死区体积分数减小。展开更多
Objective To determine the nosogenetic factors of a 46,XY female with primary amenorrhea and unilateral mixed germ cell tumor.Methods Eight genes associated with 46,XY gonadal dysgenesis were detected in the patient a...Objective To determine the nosogenetic factors of a 46,XY female with primary amenorrhea and unilateral mixed germ cell tumor.Methods Eight genes associated with 46,XY gonadal dysgenesis were detected in the patient and her parents by target region captured-next generation sequencing.Results An insertion of a single nucleotide（adenine） at the coding site 230（c.230231insA） located in the high mobility group（HMG） domain of SRY was revealed,which led to a truncated protein（p.Lys77 fsX 27）. This mutation was at position 2655414 of the Y chromosome, supported with 127 unique mapped reads, however, this mutation was not found in the in-house dataset of 1 092 controls. Additionally, none of the candidate gene was detected in the patient’s parents, which indicated that it is a de novo mutation.Conclusion A novel SRY sporadic mutation due to a single nucleotide insertion at position 230（c.230231insA） was identified as the cause of the disease in this patient.Target region captured-next generation sequencing was found to be an effective method for the molecular genetic testing of 46,XY complete gonadal dysgenesis（46,XY CGD）.展开更多
核安全级控制显示操作设备(Nuclear safety classified control and information display,SCID)是核电站数字化仪控系统的关键设备,实现运行操作人员与数字化核安全级控制保护系统人机交互功能。本文对我国SCID的需求进行了分析,得出研...核安全级控制显示操作设备(Nuclear safety classified control and information display,SCID)是核电站数字化仪控系统的关键设备,实现运行操作人员与数字化核安全级控制保护系统人机交互功能。本文对我国SCID的需求进行了分析,得出研制高性能SCID的必要性;提出了基于商用实时嵌入式操作系统的SCID软件总体设计方案,并对此方案中涉及的核电安全要求的确定性、系统的自诊断、系统的信息安全防范进行重点设计;随后针对商用操作系统使其达到核电同等质量水平出发,详述了商用操作系统选型和商品级物项适用性确认(Commercial Grad Dedication,CGD);目前高性能核安全仪控安全显示在防城港3&4号机组成功应用,成为我国首款获得工程应用的高性能SCID产品。展开更多
文摘In this paper, we discuss the matrix equation AXB = C. We obtain a terse expression of weighted least-squares solution by applying the canonical correlation decomposition(CCD), we discuss the sufficient and necessary conditions for existence of Hermitian solutions, and derive a general form of the Hermite solutions.We also derive the expression of the optimal approximation solution in the set of Hermite soluti6ns to given matrix.
文摘文章利用数值模拟方法研究了COREX预还原竖炉内煤气停留时间分布(RTD)特性,分析了CGD (central gas distribution)装置对炉内煤气RTD分布特性的影响,并对不同熔炼率下炉内煤气RTD规律进行了研究。模拟结果表明,安装CGD后,增加了竖炉底部中心供气,提高了煤气平均停留时间。此外,CGD的安装降低了炉内平均停留时间的无量纲方差,且有效减少了炉内死区体积分数,有利于炉内气固相间的还原反应及传质、传热。随着熔炼率增加,炉内煤气平均停留时间缩短,死区体积分数减小。
基金supported by grants of the Tianjin Binhai New Area Science and Technology Commission(No.2011-BK120011)Shenzhen Engineering Laboratory for Clinical Molecular Diagnostic,the Shenzhen Municipal Government of China(No.CXZZ20130517144604091)and China National GeneB ank-Shenzhen
文摘Objective To determine the nosogenetic factors of a 46,XY female with primary amenorrhea and unilateral mixed germ cell tumor.Methods Eight genes associated with 46,XY gonadal dysgenesis were detected in the patient and her parents by target region captured-next generation sequencing.Results An insertion of a single nucleotide（adenine） at the coding site 230（c.230231insA） located in the high mobility group（HMG） domain of SRY was revealed,which led to a truncated protein（p.Lys77 fsX 27）. This mutation was at position 2655414 of the Y chromosome, supported with 127 unique mapped reads, however, this mutation was not found in the in-house dataset of 1 092 controls. Additionally, none of the candidate gene was detected in the patient’s parents, which indicated that it is a de novo mutation.Conclusion A novel SRY sporadic mutation due to a single nucleotide insertion at position 230（c.230231insA） was identified as the cause of the disease in this patient.Target region captured-next generation sequencing was found to be an effective method for the molecular genetic testing of 46,XY complete gonadal dysgenesis（46,XY CGD）.
文摘核安全级控制显示操作设备(Nuclear safety classified control and information display,SCID)是核电站数字化仪控系统的关键设备,实现运行操作人员与数字化核安全级控制保护系统人机交互功能。本文对我国SCID的需求进行了分析,得出研制高性能SCID的必要性;提出了基于商用实时嵌入式操作系统的SCID软件总体设计方案,并对此方案中涉及的核电安全要求的确定性、系统的自诊断、系统的信息安全防范进行重点设计;随后针对商用操作系统使其达到核电同等质量水平出发,详述了商用操作系统选型和商品级物项适用性确认(Commercial Grad Dedication,CGD);目前高性能核安全仪控安全显示在防城港3&4号机组成功应用,成为我国首款获得工程应用的高性能SCID产品。
