Effects of CCC treatment on vernalization-key enzyme activity in broccoli(矮壮素处理对青花菜生长状态及春化关键酶活性的影响)

以中早熟品种‘元绿701’青花菜为试材，当植株长至3片真叶时叶面喷施不同浓度（2 000、3 000、4 000 mg•L-1))的矮壮素溶液，在其长到6片真叶时进行低温春化处理（昼温/夜温=(13.3±0.5) ℃/(6.3±0.5)℃），研究矮壮素处理对青花菜生长状态及春化相关酶活性的影响.结果表明：喷施矮壮素后，改变了植株的营养生长状态，使株高显著降低、茎粗显著增加；降低了转化酶和硝酸还原酶的活性，提高了谷氨酰胺合成酶活性.低水平的转化酶、硝酸还原酶、谷氨酰胺合成酶活性有利于春化的完成

Effects of the gradually decreasing low temperature stress on the chloroplast membrane related indexes in cucumber seedling(渐降低温胁迫对黄瓜幼苗叶绿体膜相关指标的影响)

为了进一步说明模拟自然界温度渐降低温胁迫的冷害作用的机理，以黄瓜品种“津优1号”为试材，以直降低温胁迫（昼温/夜温= (10±0. 5)℃/(5±0. 5)℃）为对照CK，常温（昼温/夜温= (25±0. 5)℃/(18±0. 5)℃）为对照CK1，研究渐降低温胁迫（即以1℃ • h-1的平均降温速度进行降温处理）对黄瓜幼苗叶绿体膜相关指标的影响.结果表明：(1)Ca2+-ATPase和Mg2+-ATPase活性在低温胁迫过程中呈先上升后下降趋势，随着低温胁迫的进程，渐降低温胁迫下2种酶活性下降的幅度明显低于直降低温胁迫.(2)经过低温胁迫，冷害指数、叶绿体膜蛋白质量浓度和叶绿素质量浓度显著下降.(3)处理T的冷害指数、膜蛋白和叶绿素质量浓度、Ca2+-ATPase和Mg2+-AT-Pase活性均显著高于CK.总之，渐降低温胁迫可以减少叶绿体膜的损伤，增强抵御低温逆境胁迫的能力

一种用于粉末原料运输转移的装置

本发明公开了一种用于粉末原料运输转移的装置，包括设备外壳，所述设备外壳上安装有一料筒，同时，所述设备外壳内还设置有控制器，以及与控制器相连的直线送料器、计量秤斗、称重传感器和卸料斗，其中所述直线送料器位于料筒出料口下方，所述计量秤斗位于所述直线送料器的尾端，包括上端口、下端口，同时，所述称重传感器通过连接件连接于所述计量秤斗上，且所述卸料斗位于所述下端口处。本设备是专门针对于密胺制品研发，相对于市面上的其他设备，主要优点是结构简单，造价低廉，易清理，能满足使用不同颜色粉料的要求，占地空间小，能基本满足密胺制品的基本需求

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies