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棉花开花调控相关基因研究进展

山西农业科学 2024年第4期52卷 150-158页

作者：杨琴莉张晓玲李换丽上官小霞山西农业大学棉花研究所山西运城044000

棉花是重要的经济作物,棉花的早熟性状与株型、产量、品质等关系密切,是育种的重要目标之一。FT(FLOWERING LOCUS T)和CETS(CENTRORADIALIS/TERMINAL FLOWER1/SELF-PRUNING)是调控植物开花的2类重要蛋白,进化上高度保守,皆属于PEBP(Phos... 详细信息

棉花是重要的经济作物,棉花的早熟性状与株型、产量、品质等关系密切,是育种的重要目标之一。FT(FLOWERING LOCUS T)和CETS(CENTRORADIALIS/TERMINAL FLOWER1/SELF-PRUNING)是调控植物开花的2类重要蛋白,进化上高度保守,皆属于PEBP(Phosphatidylethanolamine Binding Protein)家族,FT和CETS通过竞争性结合bZIP转录因子FD或14-4-3蛋白决定植物开花。棉花中PEBP家族基因在调控开花及株型发育方面同样起重要的作用。其中,GhFT基因可促进棉花提早开花,GhFT和GhFD蛋白可与不同的GhGRF蛋白形成有功能的三元复合体来调控SAM(Shoot Apical Meristem)的发育。GhSP、GhCEN基因抑制开花,棉花中降低GhSP、GhCEN的表达则可促进棉花植株的有限生长,导致开花时间提前,果枝变短。表明这2个基因在调节棉花开花和株型发育方面具有较大应用潜力。MADS-box转录因子家族是调控棉花开花的另一类重要转录因子,成员众多,但至今大部分仍未被分离鉴定。为了全面解析棉花开花调控的分子机制,挖掘与开花及株型发育相关的重要基因,利用基因工程技术或CRISPR/Cas9基因编辑技术,定向修饰有利基因,创制早熟性好、株型理想的棉花育种新种质提供理论参考,文章综述了PEBP及MADS-box转录因子在棉花开花调控方面的研究进展。

关键词：棉花开花转变成花素抗成花素 MADS-box转录因子

Evaluating Suitability of Multiple Precipitation Products for the Lancang River Basin

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Chinese Geographical Science 2019年第1期29卷 37-57页

作者： TANG Xiongpeng ZHANG Jianyun WANG Guoqing yang qinli yang Yanqing GUAN Ti-esheng LIU Cuishan JIN Junliang LIU Yanli BAO Zhenxin Nanjing Hydraulic Research Institute State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University University of Electronic Science and Technology of China

Global reanalysis precipitation products could provide valuable meteorological information for flow forecasting in poorly gauged areas, helping to overcome a long-standing challenge in the field. But not all data sources are suitable for all regions or perform the same way in hydrological modeling, so it is essential to test the suitability of precipitation products before applying them. In this study, five widely used global high-resolution precipitation products—Asian Precipitation Highly Resolved Observational Data Integration Towards Evaluation of Water Resources(APHRODITE), National Centers for Environmental Prediction Climate Forecast System Reanalysis(NCEP-CFSR), Climate Hazards Group InfraRed Precipitation with Station Data(CHIRPS), China Gauge-based Daily Precipitation Analysis developed by China Meteorological Administration(CMA) and Agricultural Model Intercomparison and Improvement Project based on the NASA Modern-Era Retrospective Analysis for Research and Applications(AgMERRA)—were evaluated using statistical methods and a hydrological approach for their suitability for the Lancang River Basin. The results indicated that APHRODITE, CMA, AgMERRA and CHIRPS were more accurate precipitation indicators than NCEP-CFSR in terms of the multiyear average and seasonal spatial distribution pattern, all of the CHIRPS, Ag MERRA and APHRODITE perform better than CMA and NCEP-CFSR at the small, medium and high precipitation intensities ranges in subbasin11 and sunbabsin46. All five products performed better in subbasin46(a low-altitude region) than in subbasin11(a high-altitude region) on the daily and monthly scales. In addition to NCEP-CFSR, the other four products all presented encouraging potential for streamflow simulation at daily(Yunjinghong) and monthly(Yunjinghong, Jiuzhou and Gajiu) scale. Hydrological simulations forced with APHRODITE were the best of the five for the Yunjinghong station in capturing daily and monthly measured streamflow. Except for NCEP-

关键词： multiple precipitation products suitability evaluation the Lancang River Basin

高纯三氧化钼粒度对粉末冶金钼板工艺特性与力学性能影响

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中国钼业 2024年第1期48卷 35-39页

作者：杨秦莉赵虎厉学武崔玉青庄飞杜一辰高贤金堆城钼业股份有限公司技术中心陕西西安710077 陕西省先进钼冶金技术重点实验室陕西西安710077 陕西省四主体一联合含钼冶金技术重点实验室陕西西安710077

粉末冶金轧制制板工艺中,原始粉末颗粒对还原、烧结和轧板工艺特性以及钼板力学性能有着非常重要的影响。采用3种不同粒度高纯MoO_(3)进行还原、烧结和轧制制备0.5 mm厚的钼板试验,研究了3种不同粒度原始粉末颗粒对MoO_(2)、钼粉以及钼... 详细信息

粉末冶金轧制制板工艺中,原始粉末颗粒对还原、烧结和轧板工艺特性以及钼板力学性能有着非常重要的影响。采用3种不同粒度高纯MoO_(3)进行还原、烧结和轧制制备0.5 mm厚的钼板试验,研究了3种不同粒度原始粉末颗粒对MoO_(2)、钼粉以及钼板制备工艺性能和终板力学性能的影响。结果表明:经一段还原制备的3种MoO_(2)还原程度及微观形貌差异较大;二段不同还原工艺制备的钼粉指标也不同,大粒度钼粉的D50、D90/D50值都比小粒度钼粉的低,且团聚少,均匀分散;相同烧结、轧制工艺条件下,大粒度三氧化钼经还原、烧结制成的钼板坯性能较好;小粒度三氧化钼经950℃还原及后续加工制成的0.5 mm钼板力学性能较好。

关键词：三氧化钼粒度还原钼板性能

一种用于淮河上游日径流预测的增强型LSTM模型

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工程(英文) 2023年第5期24卷 229-238,I0006页

作者： Yuanyuan Man qinli yang Junming Shao Guoqing Wang Linlong Bai Yunhong Xue School of Resources and Environment University of Electronic Science and Technology of ChinaChengdu 611731China yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001China School of Computer Science and Engineering University of Electronic Science and Technology of ChinaChengdu 611731China State Key Laboratory of Hydrology–Water Resources and Hydraulic Engineering Nanjing Hydraulic Research InstituteNanjing 210029China Xinyang Hydrology and Water Resources Survey Bureau Xinyang 450003China

径流预报对防洪具有重要意义。然而,由于径流过程的复杂性和随机性,对日径流量进行准确预测是困难的,尤其是对峰值径流量的预测。为了解决这一问题,本研究提出了一种用于径流预测的增强型长短期记忆(LSTM)模型,其中引入了新的损失函数... 详细信息

径流预报对防洪具有重要意义。然而,由于径流过程的复杂性和随机性,对日径流量进行准确预测是困难的,尤其是对峰值径流量的预测。为了解决这一问题,本研究提出了一种用于径流预测的增强型长短期记忆(LSTM)模型,其中引入了新的损失函数并集成了特征提取器。设计了峰值误差tanh(peak error tanh,PET)和峰值误差swish(peak error swish,PES)两个损失函数,增强了峰值径流预测的重要性,弱化了正常径流预测的权重。为每个气象站建立由3个LSTM网络组成的特征提取器,目的是提取每个气象站输入数据的时间特征。以中国淮河上游为例,利用增强型LSTM模型对1960—2016年的日径流量进行了预测。结果表明,改进后的LSTM模型表现良好,在验证期内(2005年11月至2016年12月),Nash-Sutcliffe效率(NSE)系数在0.917-0.924之间,优于广泛使用的集总水文模型(Australian Water Balance model(AWBM)、Sacramento、Sim Hyd和Tank模型)和数据驱动模型(人工神经网络(ANN)、支持向量回归(SVR)和门控循环单元(GRU))。以PES为损失函数的增强型LSTM对洪水极端径流的预测效果最好,平均NSE为0.873。此外,海拔较高的气象站降水对径流预测的贡献比最近的气象站更大。该研究为流域日径流预测提供了有效工具,有利于流域防洪和水安全管理。

关键词：长短期记忆损失函数数据驱动模型输入数据日径流预测

Attribute Reduction of Hybrid Decision Information Systems Based on Fuzzy Conditional Information Entropy

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Computers, Materials & Continua 2024年第5期79卷 2063-2083页

作者： Xiaoqin Ma Jun Wang Wenchang Yu qinli Zhang School of Big Data and Artificial Intelligence Chizhou UniversityChizhou247000China Anhui Education Big Data Intelligent Perception and Application Engineering Research Center Chizhou247000China

The presence of numerous uncertainties in hybrid decision information systems(HDISs)renders attribute reduction a formidable *** available attribute reduction algorithms,including those based on Pawlak attribute importance,Skowron discernibility matrix,and information entropy,struggle to effectively manages multiple uncertainties simultaneously in HDISs like the precise measurement of disparities between nominal attribute values,and attributes with fuzzy boundaries and abnormal *** order to address the aforementioned issues,this paper delves into the study of attribute reduction *** of all,a novel metric based on the decision attribute is introduced to solve the problem of accurately measuring the differences between nominal attribute *** newly introduced distance metric has been christened the supervised distance that can effectively quantify the differences between the nominal attribute ***,based on the newly developed metric,a novel fuzzy relationship is defined from the perspective of“feedback on parity of attribute values to attribute sets”.This new fuzzy relationship serves as a valuable tool in addressing the challenges posed by abnormal attribute ***,leveraging the newly introduced fuzzy relationship,the fuzzy conditional information entropy is defined as a solution to the challenges posed by fuzzy *** effectively quantifies the uncertainty associated with fuzzy attribute values,thereby providing a robust framework for handling fuzzy information in hybrid information ***,an algorithm for attribute reduction utilizing the fuzzy conditional information entropy is *** experimental results on 12 datasets show that the average reduction rate of our algorithm reaches 84.04%,and the classification accuracy is improved by 3.91%compared to the original dataset,and by an average of 11.25%compared to the other 9 state-of-the-art reduction *** comprehensive analysis o

关键词： Hybrid decision information systems fuzzy conditional information entropy attribute reduction fuzzy relationship rough set theory(RST)

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一种新的组培大豆种子的消毒方法

现代农业研究 2024年第8期30卷 109-113页

作者：李换丽上官小霞杨琴莉张晓玲文晋马燕斌山西农业大学棉花研究所山西运城044000

为获得一种较好的环境友好型组培大豆种子的消毒方法,本试验通过对三种不同消毒方式下大豆种子组培4 d的萌发数目和污染数目进行统计。研究结果表明:通过不同浓度和不同时间的过氧化氢消毒后,四个品种的萌发数目趋势一致。都是随着15%H_... 详细信息

为获得一种较好的环境友好型组培大豆种子的消毒方法,本试验通过对三种不同消毒方式下大豆种子组培4 d的萌发数目和污染数目进行统计。研究结果表明:通过不同浓度和不同时间的过氧化氢消毒后,四个品种的萌发数目趋势一致。都是随着15%H_(2)O_(2)消毒时间的延长,种子萌发越多,在灭菌1 h时全部萌发,且达到最大值;随着时间的再次延长,萌发数目减少且受到抑制。浓度为30%H_(2)O_(2)随着灭菌时间的延长,大豆种子萌发抑制程度加深,当灭菌2 h后,将近20%左右的大豆种子受到抑制未萌发。此外用同样的品种进行了其他两种方式的消毒,研究结果发现随着0.1%生汞、5%次氯酸钠消毒时间的增加,污染的种子越来越少,但是萌发数目越来越受抑制,在此试验品种中均没有达到完全消毒的目的。综上所述,选取15%H_(2)O_(2)消毒1 h最为合适,能够保证大豆种子完全萌发且不污染。同时选取国内主栽的15个大豆品种进行试验结果的验证,最终获得了一种新的组培大豆种子的消毒方法。此方法是一种高效、省时、便捷的消毒方式,这为下一步大豆遗传转化试验奠定了基础。

关键词：大豆组培消毒种子萌发

Dynamic response of a thermal transistor to time-varying signals

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Chinese Physics B 2024年第5期33卷 13-19页

作者：阮琴丽刘文君王雷 Department of Physics Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devicesand Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education)Renmin University of ChinaBeijing 100872China

Thermal transistor,the thermal analog of an electronic transistor,is one of the most important thermal devices for microscopic-scale heat *** is a three-terminal device,and the heat current flowing through two terminals can be largely controlled by the temperature of the third *** response plays an important role in the application of electric devices and also thermal devices,which represents the devices’ability to treat fast varying *** this paper,we systematically study two typical dynamic responses of a thermal transistor,i.e.,the response to a step-function input(a switching process)and the response to a square-wave *** role of the length L of the control segment is carefully *** is revealed that when L is increased,the performance of the thermal transistor worsens *** the relaxation time for the former process and the cutoff frequency for the latter one follow the power-law dependence on L quite well,which agrees with our analytical ***,the detailed power exponents deviate from the expected values *** implies the violation of the conventional assumptions that we adopt.

关键词： phonon phononics thermal transistor dynamic response heat conduction

心理干预在高血压脑出血患者治疗中的应用价值

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中国继续医学教育 2016年第25期8卷 247-248页

作者：杨琴丽吉林医药学院附属医院神经内二科吉林吉林132013

目的探讨心理干预在高血压脑出血患者治疗的的价值,为高血压脑出血患者防提供科学的指导。方法将所有患者按照随机方法划分为实验组和对照组,每组各有50例。为对照组患者配合采用常规护理,实验组患者额外增加了心理照料干预。结果治疗前... 详细信息

目的探讨心理干预在高血压脑出血患者治疗的的价值,为高血压脑出血患者防提供科学的指导。方法将所有患者按照随机方法划分为实验组和对照组,每组各有50例。为对照组患者配合采用常规护理,实验组患者额外增加了心理照料干预。结果治疗前,两组患者汉密尔顿焦虑量表(HAMA)评分与汉密尔顿抑郁量表(HAMD)评分相比,差异均无统计学意义(P>0.05);治疗后,观察组HAMA评分与HAMD评分,与对照组相比,差异具有统计学意义(P<0.05)。结论对于高血压脑出血患者,患者在传统的治疗上采用心理干预护理,可以有效地提高患者治疗的有效率,促进其健康生活质量,患者对护理的满意程度的提高。

关键词：高血压脑出血患者汉密尔顿焦虑量表汉密尔顿抑郁量表

资产处置损益与盈亏状况的调节效应研究——以信息技术行业上市公司为例

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江苏科技信息 2020年第2期37卷 19-21,41页

作者：杨钦灕青海民族大学经济与管理学院

在经济全球化快速发展背景下,资产处置已成为当前我国上市公司经营活动中至关重要的组成部分之一,资产处置产生的损益对公司盈利水平的影响也越发显著。文章以我国2015-2019年沪深两市A股上市的263家信息技术行业公司为样本,通过对资产... 详细信息

在经济全球化快速发展背景下,资产处置已成为当前我国上市公司经营活动中至关重要的组成部分之一,资产处置产生的损益对公司盈利水平的影响也越发显著。文章以我国2015-2019年沪深两市A股上市的263家信息技术行业公司为样本,通过对资产处置损益项目数据进行统计和回归分析,检验了资产处置损益项目与信息技术行业上市公司盈亏状况之间的关系。实证结果表明,资产处置损益与信息技术行业上市公司存在显著的价值相关性,即盈利的信息技术行业上市公司倾向于通过资产处置的方式减少报告盈余,而亏损的信息技术行业上市公司倾向于通过资产处置的方式增加报告盈余。

关键词：资产处置损益盈亏状况调节效应实证分析信息技术