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    • 8. 发明授权
    • Nuclear reactor power monitor
    • 核反应堆功率监视器
    • US09177676B2
    • 2015-11-03
    • US13697950
    • 2011-05-11
    • Yutaka TakeuchiHiroshi OnoKazuki Yano
    • Yutaka TakeuchiHiroshi OnoKazuki Yano
    • G21C17/00G21C17/10G21D3/00
    • G21C17/00G21C17/10G21D3/001G21D2003/005Y02E30/40
    • Provide a nuclear reactor power monitoring technology for enhancing the monitoring accuracy and reliability in nuclear thermal hydraulic stability.A power monitor 30 includes a first calculation unit 42,52 configured to calculate a first stability index based on time series data indicating power oscillation in nuclear instrumentation signals outputted from a plurality of nuclear instrumentation detectors 31; a first determination unit 44,53 configured to compare the first stability index and a first reference value and determine whether nuclear thermal hydraulic stability of the reactor core is stable or deteriorated; a second calculation unit 46,54 configured to calculate a second stability index of the reactor core based on the time series data when the deteriorated state is determined in the first determination unit 44,53; and a second determination unit 47,55 configured to compare the second stability index and a second reference value and determine whether to perform suppressing operation of the power oscillation.
    • 提供核反应堆功率监测技术,提高核热液压稳定性的监测精度和可靠性。 功率监视器30包括第一计算单元42,52,其被配置为基于表示从多个核仪器检测器31输出的核仪器信号中的功率振荡的时间序列数据来计算第一稳定性指标; 第一确定单元44,53,被配置为比较第一稳定性指数和第一参考值,并确定反应堆堆芯的核热液压稳定性是否稳定或劣化; 第二计算单元46,54,被配置为当在第一确定单元44,53中确定恶化状态时,基于时间序列数据计算反应堆堆芯的第二稳定性指数; 以及第二确定单元47,55,被配置为比较第二稳定性指标和第二参考值,并确定是否执行功率振荡的抑制操作。
    • 9. 发明申请
    • Germ Cell Marker Using Fish Vasa Gene
    • 生殖细胞标记使用鱼Vasa基因
    • US20100132056A1
    • 2010-05-27
    • US12532304
    • 2008-03-26
    • Goro YoshizakiYutaka TakeuchiKazue NagasawaKentaro HiguchiTetsuro MoritaNaoki Kabeya
    • Goro YoshizakiYutaka TakeuchiKazue NagasawaKentaro HiguchiTetsuro MoritaNaoki Kabeya
    • A01K67/027G01N33/50C07K14/435C07H21/04C12N15/63C07K16/18C07H21/02C12Q1/68
    • C07K14/461C12Q1/6888C12Q2600/158
    • In order to examine whether or not a germ cell derived from a donor fish, which has been transplanted into a recipient fish of a different species by a surrogate fish technique, grows or matures in the gonad of the recipient fish, it is necessary to use, as an indicator, a trait that is specifically expressed in the germ cell and can be used to distinguish the recipient fish from the donor fish. Vasa gene, which is a germ cell-specific gene, is specific to a primordial germ cell and a spermatogonium/an oogonium, and it is not expressed in a somatic cell. In the present invention, the Vasa gene sequences of a tuna, a chub mackerel, a spotted mackerel, an eastern little tuna, and a drumfish are determined, and the expression of such gene is used as a marker for a germ cell. In addition, according to the present invention, it is possible to specifically detect only a tuna Vasa gene in Vasa gene sequences that are highly conserved in fishes, without sequencing. Thus, a tuna-derived germ cell can be reliably and simply identified in the gonad of the recipient fish. As a result, the growth or breeding of tuna can be carried out with good efficiency. Moreover, utilizing the aforementioned findings, even in a case in which not only a tuna but also another Perciformes fish is used as a donor, a germ cell derived from the donor fish can be efficiently detected from the gonad of a recipient fish of a different species.
    • 为了检查是否通过代孕鱼技术移植到不同物种的受体鱼中的源自供体鱼的生殖细胞在受体鱼的性腺中生长或成熟,则必须使用 作为指标,是在生殖细胞中特异性表达并可用于将受体鱼与供体鱼区分开的特征。 Vasa基因是生殖细胞特异性基因,对原始生殖细胞和精原细胞/卵母细胞是特异性的,并且它不在体细胞中表达。 在本发明中,确定了金枪鱼,鲭鱼,斑点m鱼,东部小金枪鱼和鼓鱼的Vasa基因序列,并将该基因的表达用作生殖细胞的标记物。 此外,根据本发明,可以仅在鱼中高度保守的Vasa基因序列中仅特异性检测金枪鱼Vasa基因,而不进行测序。 因此,可以在受体鱼的性腺中可靠且简单地鉴定金枪鱼衍生的生殖细胞。 结果,金枪鱼的生长或繁殖可以以良好的效率进行。 此外,利用上述发现,即使不仅使用金枪鱼,而且使用另一种鲈形鱼作为供体的情况,可以从不同的受体鱼的性腺中有效地检测来自供体鱼的生殖细胞 种类。