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基于翻转课堂、线上线下的计算机基础课程混合教学模式的研究与应用实践

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高等药学教育研究 2024年第1期 50-55,79页

作者：于净翟玉萱王海慧李定远宋亭燕李实李一光沈阳药科大学医疗器械学院辽宁沈阳110016

本文基于翻转课堂、线上线下的混合教学模式,以计算机基础课程为例,以药学专业高级人才的计算机信息学能力培养为目标,通过改进教学方法,制作相关教学课件以及开放的实践教学内容,进行学生课上展示交流,利用教学网站建立计算机基础课程... 详细信息

本文基于翻转课堂、线上线下的混合教学模式,以计算机基础课程为例,以药学专业高级人才的计算机信息学能力培养为目标,通过改进教学方法,制作相关教学课件以及开放的实践教学内容,进行学生课上展示交流,利用教学网站建立计算机基础课程信息资源等形式,建立药学专业高级人才培养模式,提升药学专业学生处理计算机信息的能力。

关键词：翻转课堂混合教学模式平台资源建设

不同林分密度降香人工林生长量与树冠层因子的关系

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广西林业科学 2024年第2期53卷 219-224页

作者：刘慧兰余慧霖陈毅青黄海吴向荣陈海辉张学丰余雪标海南大学海南海口570228 海南省林业科学研究院(海南省红树林研究院) 海南海口571100

为给降香(Dalbergia odorifera)人工林经营措施优化提供理论依据,以降香人工林为研究对象,采用相关性分析法和通径分析法研究生长量与树冠层因子的关系。结果表明,随林分密度增大,降香人工林的胸径、冠幅和树冠体积均减小,树高和冠长率... 详细信息

为给降香(Dalbergia odorifera)人工林经营措施优化提供理论依据,以降香人工林为研究对象,采用相关性分析法和通径分析法研究生长量与树冠层因子的关系。结果表明,随林分密度增大,降香人工林的胸径、冠幅和树冠体积均减小,树高和冠长率均呈先升后降的趋势,冠形率增大。相关性分析结果表明,不同林分密度降香人工林生长量和树冠层因子大多呈显著或极显著相关性。通径分析结果表明,冠幅、冠形率和冠长率对树高和胸径的直接影响和间接影响均较复杂,冠幅对胸径和树高的影响均较大。

关键词：林分密度生长量树冠层因子通径分析降香

Influence of using plants to design landscape in city recreational squares on environment

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Journal of Northeast Agricultural University(English Edition) 2007年第4期14卷 306-309页

作者： HU haihui CHEN Yajun yu Lei College of Horticulture Northeast Agricultural University Harbin 150030 China

Through the investigation on influence of temperature, humidity and effects of landscape in Harbin First Department Store （Hayibai） Center Recreational Square, the influence of landscape designing of plant on the environment was researched. Two improved suggestions were given after analyzing the results of the investigation. One is to further plan the market of designing of city recreational square, and to manage and maintain the city recreational square; the other is to make good policies to control and avoid some large scale political projects.

关键词： city recreational square creating view by plants effects on environment improving suggestions

白光LED用近紫外光激发的蓝绿色荧光粉Sr5（PO4）3F:Eu2+的光谱性能及助熔剂的影响

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人工晶体学报 2020年第1期49卷 33-38页

作者：孔丽刘莹莹乔露吴晶陈丽潘宵王文生于海辉魏奇业吉林化工学院石油化工学院吉林132022 东北电力大学化学工程学院吉林132012

本文采用还原氛下的高温固相法合成了荧光粉Sr5(PO4)3F:Eu2+并对其性能进行了表征,同时研究了助熔剂硼酸对该荧光粉的影响。结果表明:在1200℃还原氛下制得的荧光粉Sr5(PO4)3F:Eu2+,激发峰位于418 nm,发射峰位于524 nm,是能与近紫外光LE... 详细信息

本文采用还原氛下的高温固相法合成了荧光粉Sr5(PO4)3F:Eu2+并对其性能进行了表征,同时研究了助熔剂硼酸对该荧光粉的影响。结果表明:在1200℃还原氛下制得的荧光粉Sr5(PO4)3F:Eu2+,激发峰位于418 nm,发射峰位于524 nm,是能与近紫外光LED相匹配的蓝绿色荧光粉。Eu2+的最佳掺杂浓度为15mol%,对应的色坐标为(0. 2871,0. 4036)。添加助熔剂H3BO3可以使荧光粉Sr5(PO4)3F:Eu2+的合成温度由1200℃降低到1100℃,最佳掺杂浓度为5wt%,同时可以增加荧光粉的发光强度。

关键词： Sr5(PO4)3F:Eu2+ 蓝绿色荧光粉光谱性能紫外光激发

Effects of Milk Quality on Growth and Development of Suckling Calves

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Agricultural Biotechnology 2022年第4期11卷 50-51,60页

作者： Li na MA Yang yu haihui GAO Xiaojun LIANG Institute of Animal Science Ningxia Academy of Agriculture and Forestry SciencesYinchuan 750002China

[Objectives]This study was conducted to study the effects of cows'milk quality on suckling calves'growth and development.[Methods]A total of 80 regular milk samples from Simmental and Angus cows were collected to complete the detection of conventional milk components.[Results]Under the same feeding and management conditions,the chemical composition of Simmental cows'milk was better than that of Angus cows'*** milk fat in Simmental cows'milk was beneficial to calves'early growth and development,and high milk protein in Angus cows'milk composition was conducive to calves'early weight gain.[Conclusions]This study provides a theoretical basis for reducing calves'mortality,alleviating calves'stress,and improving the economic benefits of beef cattle breeding.

关键词： Milk quality Calf High milk fat High milk protein Growth and development

Evaluating effects of temperature, salinity, starvation and autotomy on molting success, molting interval and expression of ecdysone receptor in early juveniles of the mud crab, Scylla paramamosa in

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Evaluating effects of temperature, salinity, starvation and ...

一维卷积神经网络在往复式压缩机气阀故障诊断中的应用

福建省海洋学会2014年学术年会暨福建省科协第十四届学术年会

作者： Jie Gong Kun yu haihui Ye Guizhong Wang Shaojing Li Chaoshu Zeng College of Ocean and Earth Sciences Xiamen University

Newly molted first stage juvenile crabs(C1) of the mud crab, Scylla paramamosain, were subjected to different temperature(14, 20, 26, 32 and 39°C), salinity(5, 10, 20, 30 and 40‰), starvation and autotomy(for autotomy experiment, the second stage crabs(C2) were used) to assess their effects on molting success, molting interval and corresponding expression of ecdysone receptor(Ec R) of the crabs. The results showed that at a low temperature of 14°C no molt occurred with a subdued EcR mR NA level detected. In contrast, a higher temperature of 32°C induced a significantly increased expression of Ec R gene with significantly shorten C1 molting interval as compared to other treatments. However, as temperature increased further to 39°C, the expression of Ec R gene dropped abruptly from 6 h onward and all C1 crabs died without molt. On the other hand, a low salinity of 5‰ increased Ec R mR NA levels at 72 h and shortened molting interval significantly while high salinity of 40‰ led to opposite results. No significant difference in percentage molting success was detected for salinity ranged from 10 to 40‰. When C1 crabs were subjected to starvation for longer than 48 h, the expression of Ec R was found to be significantly restrained when compared to the feeding control, and none of the starved crabs successfully molted. Meanwhile, although molting success of C2 crabs was not significantly affected by autotomy, molting interval was significantly increased from 5.8 days of intact crabs to 6.2 days for the autotomized crabs. Interestingly, the expression level of EcR gene of autotomized crabs was found initially restrained(i.e. during the first 120 h) when compared to intact crabs, but increased sharply to a level significantly higher than the control at 134 h(i.e. during premolt stage of the autotomized crabs). Our results showed that temperature, salinity, starvation and autotomy all affected molting of early juvenile mud crabs and changes of EcR mR NA level in the crabs app

关键词： Scylla paramamosain molting success ecdysone receptor temperature salinity starvation autotomy

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西安交通大学学报 2022年第4期56卷 101-108页

作者：马海辉余小玲吕倩叶君超西安交通大学能源与动力工程学院西安710049 西安交通大学化学工程与技术学院西安710049

针对往复式压缩机气阀故障诊断问题,对气阀盖上的振动信号进行分析,提出了一种基于一维卷积神经网络(1D-CNN)的故障诊断模型。首先,将原始一维振动信号经傅里叶变换从时域转换为频域;然后,将频域信号作为1D-CNN的输入,利用卷积层实现自... 详细信息

针对往复式压缩机气阀故障诊断问题,对气阀盖上的振动信号进行分析,提出了一种基于一维卷积神经网络(1D-CNN)的故障诊断模型。首先,将原始一维振动信号经傅里叶变换从时域转换为频域;然后,将频域信号作为1D-CNN的输入,利用卷积层实现自适应提取特征;最后,网络输出层利用Softmax函数实现多种故障的模式识别。在往复式压缩机故障模拟实验台上进行了气阀正常、阀片裂纹、阀片断裂、弹簧失效4种工作状况下气阀盖振动信号的测量并对提出的模型进行验证。结果表明,气阀盖上的振动信号能够明显反映气阀的工作状态,而且信号易提取、十分适合用于气阀的故障诊断;将振动信号从时域转换成频域作为1D-CNN的输入明显地提高了故障分类的准确率;与采用原始一维振动信号作为1D-CNN输入的模型相比,采用频域信号作为输入的故障诊断模型具有更优越的表现,准确率更高,可达100%,而且模型结构简单,能够实现端到端的快速故障诊断。

关键词：往复式压缩机卷积神经网络故障诊断振动信号

Molecular Cloning of Cyclin B Full-length cDNAs from the Ovaries of Four Shrimp Species,Fenneropenaeus penicillatus,Litopenaeus vannamei,Metapenaeus ensis ＆ Metapenaeus affinis

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Molecular Cloning of Cyclin B Full-length cDNAs from the Ova...

苹果霉心病可见/近红外透射能量光谱识别方法

中国甲壳动物学会第十一届年会暨学术研讨会

作者： Huiyang Huang,Lili Shang,Jinjin yu,Wenxing Li,Jingru Huang,haihui Ye Department of Oceanography,Xiamen University.Xiamen 361005,China

＜正＞Cyclin B proteins are key regulatory elements of eukaryotic cell cycle,which control cell cycle progression by modulating cyclin-dependent kinase（CDK） *** this study,we reported the molecular cloning and characterization of cyclin B full-length transcripts from the ovaries of four shrimp species,Fenneropenaeus penicillatus,Litopenaeus vannamei,Metapenaeus ensis and Metapenaeus affinis.

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农业机械学报 2016年第4期47卷 193-200页

作者：雷雨何东健周兆永张海辉苏东西北农林科技大学机械与电子工程学院陕西杨凌712100

针对苹果霉心病从外表无法识别的难题,提出基于可见/近红外透射能量光谱进行快速无损识别的模型和方法。在200-1 100 nm波段内采集了200个苹果的透射能量光谱数据,随机选取140个样品作为训练集,剩余60个样品作为测试集。用平滑法和多元... 详细信息

针对苹果霉心病从外表无法识别的难题,提出基于可见/近红外透射能量光谱进行快速无损识别的模型和方法。在200-1 100 nm波段内采集了200个苹果的透射能量光谱数据,随机选取140个样品作为训练集,剩余60个样品作为测试集。用平滑法和多元散射校正对光谱数据进行预处理。基于全光谱、连续投影算法（SPA）提取的12个特征波长、主成分分析（PCA）提取的9个主成分,分别建立了偏最小二乘判别法、误差反向传播人工神经网络和支持向量机（SVM）识别模型。实验结果说明,应用PCA-SVM建立的模型识别性能最优,该模型对测试集和训练集中霉心病果和健康果的识别正确率分别为99.3%和96.7%。基于SPA和PCA所建模型的输入变量数仅相当于基于全光谱所建模型输入变量数的0.99%和0.74%,极大降低了模型的复杂度。研究结果表明,该方法是可行的且具有较高识别准确度,为苹果在线内部品质分级和便携式苹果霉心病检测仪的研究提供了技术依据。

关键词：苹果霉心病能量光谱连续投影算法主成分分析支持向量机