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动物源性食品中硝基呋喃类代谢物残留量检测方法的验证

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现代食品 2024年第7期30卷 173-179,183页

作者：吕婷邬杰刘鑫郭兰王建军李丹阳包头市农畜产品质量安全中心内蒙古包头014000

本文对《动物源性食品中硝基呋喃类药物代谢物残留量检测方法高效液相色谱/串联质谱法》(GB/T 21311—2007)进行方法验证。结果表明,1-氨基-乙内酰脲、5-吗啉甲基-3-氨基-2-噁唑烷基酮、3-氨基-2-噁唑酮、氨基脲这4种硝基呋喃类代谢物... 详细信息

本文对《动物源性食品中硝基呋喃类药物代谢物残留量检测方法高效液相色谱/串联质谱法》(GB/T 21311—2007)进行方法验证。结果表明,1-氨基-乙内酰脲、5-吗啉甲基-3-氨基-2-噁唑烷基酮、3-氨基-2-噁唑酮、氨基脲这4种硝基呋喃类代谢物在0.50~20.00 ng·mL^(-1)浓度范围内(内标浓度10 ng·mL^(-1))有良好的线性关系,相关系数> 0.99,平均回收率在98.6%~102.0%,相对标准偏差在0%~1.140%。该方法的灵敏度均满足标准方法中规定的要求。

关键词：硝基呋喃类代谢物高效液相色谱-串联质谱法方法验证

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共同台基的强震仪记录与地震仪记录对比研究

中国地震 2012年第3期28卷 304-312页

作者：李永振金震郭丹阳梁永朵侯作亮辽宁省地震局

本文根据时域实时方法,对辽宁省共同台基的数字宽频带加速度记录和地震仪速度型记录进行相互仿真,并做了对比分析。结果表明,可以由加速度记录仿真得到真实的速度与位移时程;同样,地震仪速度型记录也能通过仿真得到加速度时程。由此可见... 详细信息

本文根据时域实时方法,对辽宁省共同台基的数字宽频带加速度记录和地震仪速度型记录进行相互仿真,并做了对比分析。结果表明,可以由加速度记录仿真得到真实的速度与位移时程;同样,地震仪速度型记录也能通过仿真得到加速度时程。由此可见,强震观测和地震观测在一定范围内是可以相互替代的。

关键词：加速度记录速度记录记录仿真

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N235从废催化剂沉钒废液中回收钒

矿产综合利用 2024年第4期45卷 118-122页

作者：朱军郭梅刘心海徐翌童李小鹏刘丹阳西安建筑科技大学冶金工程学院陕西西安710055 陕西宝德赛肯光电材料有限公司陕西西安710055

这是一篇冶金工程领域的论文。针对陕西某炼锌厂废催化剂的沉钒废液,通过溶剂萃取法除杂并回收沉钒废液中的钒,考查N235体积分数、萃取相比、萃取时间、萃取级数等对钒萃取率的影响。结果表明:采用30%N235+5%TBP+65%的磺化煤油的萃取体... 详细信息

这是一篇冶金工程领域的论文。针对陕西某炼锌厂废催化剂的沉钒废液,通过溶剂萃取法除杂并回收沉钒废液中的钒,考查N235体积分数、萃取相比、萃取时间、萃取级数等对钒萃取率的影响。结果表明:采用30%N235+5%TBP+65%的磺化煤油的萃取体系经过四级逆流萃取,萃取相比V_(O)/V_(A)=2∶1,萃取时间t=5 min,钒的萃取率为95.68%;反萃取剂Na_(2)CO_(3)体积分数为5%,反萃相比V'_(O)/V'_(A)=4∶1,反萃时间t=4 min,经三级逆流反萃取,钒的反萃取率为98.25%。

关键词：冶金工程沉钒废液钒萃取 N235 磺化煤油

条带间作对玉米大豆光能利用特征、产量及经济收入的影响

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东北农业科学 2023年第6期48卷 1-5页

作者：郑皓远陈喜凤郭丹阳陈蕊玛丽亚穆·吾斯曼刘颖谷岩吉林农业大学农学院长春130118

实行玉米‖大豆条带间作复合种植是东北粮食主产区种植业结构调整的重要途径。本研究比较了玉米单作(M)、大豆单作(S)、玉米‖大豆2∶2条带间作(M_(2)S_(2))和玉米‖大豆4∶4条带间作(M_(4)S_(4))四种模式的光能利用特征、产量及经济收... 详细信息

实行玉米‖大豆条带间作复合种植是东北粮食主产区种植业结构调整的重要途径。本研究比较了玉米单作(M)、大豆单作(S)、玉米‖大豆2∶2条带间作(M_(2)S_(2))和玉米‖大豆4∶4条带间作(M_(4)S_(4))四种模式的光能利用特征、产量及经济收入。结果表明,条带间作提高了玉米的光合能力、降低了大豆的光合能力,条带间作玉米光合速率、气孔导度、胞间CO_(2)浓度和蒸腾速率均显著高于M,而大豆均低于S。玉米条带间作ΦPSII、qP、NPQ均显著高于M,而大豆条带间作ΦPSII、qP、NPQ均显著低于S。条带间作显著提高了玉米播种带内的产量而降低了大豆播种带内的产量。条带间作的作物总产量均显著高于S而低于M,但是总经济收入均显著高于M、S,以M_(4)S_(4)经济收入最高。M_(2)S_(2)和M_(4)S_(4)处理LER均大于1,存在间作优势。

关键词：玉米‖大豆条带间作光合速率叶绿素荧光特性产量经济收入

Classification and Summarization of Solar Irradiance and Power Forecasting Methods:A Thorough Review

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CSEE Journal of Power and Energy Systems 2023年第3期9卷 978-995页

作者： Bo Yang Tianjiao Zhu Pulin Cao Zhengxun guo Chunyuan Zeng danyang Li Yijun Chen Haoyin Ye Ruining Shao Hongchun Shu Tao Yu Faculty of Electric Power Engineering Kunming University of Science and TechnologyKunming 650500China College of Electric Power South China University of TechnologyGuangzhou 510640China

Solar forecasting is of great importance for ensuring safe and stable operations of the power system with increased solar power integration,thus numerous models have been presented and reviewed to predict solar irradiance and power forecasting in the past ***,few studies take into account the temporal and spatial resolutions along with specific characteristics of the ***,this paper aims to demonstrate a comprehensive and systematic review to further solve these ***,five classifications and seven pre-processing methods of solar forecasting data are systematically reviewed,which are significant in improving forecasting ***,various methods utilized in solar irradiance and power forecasting are thoroughly summarized and discussed,in which 128 algorithms are elaborated in tables in the light of input variables,temporal resolution,spatial resolution,forecast variables,metrics,and characteristics for a more fair and comprehensive ***,they are categorized into four groups,namely,statistical,physical,hybrid,and others with relevant application conditions and ***,six categories,along with 30 evaluation criteria,are summarized to clarify the major purposes/applicability of the different *** prominent merit of this study is that a total of seven perspectives and trends for further research in solar forecasting are identified,which aim to help readers more effectively utilize these approaches for future in-depth research.

关键词： Hybrid methods physical methods preprocessing methods solar irradiance and power forecasting statistical methods

Suppressing byproduct formation for high selective CO_(2) reduction over optimized Ni/TiO_(2) based catalysts

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Journal of Energy Chemistry 2022年第9期31卷 465-478,I0013页

作者： danyang Li Ruidong Xu Roong Jien Wong Xing Zhu Dong Tian Lei Jiang Qingjie guo Hongcun Bai Linan Huang Wen Liu Hua Wang Kongzhai Li Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction Ministry of EducationKunming University of Science and TechnologyKunming 650093YunnanChina School of Chemical and Biomedical Engineering Nanyang Technological UniversitySingapore 637459Singapore State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuan 750021NingxiaChina Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093YunnanChina

One of the challenges for catalytic CO_(2)reduction is to control product selectivity,and new findings that can modify selectivity would be ***,two kinds of TiO_(2)(homemade and commercial)with the same crystal phase but different surface properties are chosen as supports to prepare Ni-based catalysts for CO_(2)reduction,which show distinctly different product selectivity for CO_(2)reduction to CH_(4) or CO,as well as the CO_(2)*** catalysts based on the homemade TiO_(2)support are highly selective for CH_(4) formation,while the latter ones are about 100%selective for CO formation under the same reaction *** addition,the former ones are much active(more than 3 times)than the latter *** found that the collaborative contribution of Ti^(3+)and Ni^(2+)species and the electronic metal-support interactions effect maybe the main driving force behind for determining the product *** is almost exclusively produced over the catalysts with abundant Ti^(3+)and Ni^(2+)species and greater electronic metal-support interaction,otherwise,it will give priority to CO *** addition of CeO_(2)can reduce the Ni particle size and improve the dispersion of Ni nanoparticles,as well as create more Ti^(3+)species,contributing to the enhancement of CO_(2)conversion,but shows a negligible effect on product ***,the in situ DRIFT experiments and kinetic experiments indicate that the CO route is probably involved in the CO_(2)reduction process over the homemade Ni-CeO_(2)/TiO_(2)-CO catalyst with abundant Ti^(3+)and Ni^(2+)species and a strong electronic transform effect.

关键词： CO_(2)reduction Ni-based catalysts TiO_(2)support Product selectivity Surface and interface properties

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储粮仓房粮面隔热技术实仓试验对比分析

现代食品 2024年第10期30卷 212-220页

作者：郭春朗靳创创李丹阳李仰东刘长生中央储备粮新民直属库有限公司辽宁新民110300 中国储备粮管理集团有限公司辽宁分公司辽宁沈阳110000 辽宁省粮食科学研究院辽宁沈阳110032

通过对储粮仓房粮面隔热技术稻草帘压盖储粮技术的研究发现,粮面隔热技术能够很好地保存粮食,较好地保持一定温湿度的稳定环境条件,使用储粮仓房稻草帘压盖技术的稻谷表层及上层温湿度、水分、脂肪酸值指标等比无粮面隔热材料储粮仓房... 详细信息

通过对储粮仓房粮面隔热技术稻草帘压盖储粮技术的研究发现,粮面隔热技术能够很好地保存粮食,较好地保持一定温湿度的稳定环境条件,使用储粮仓房稻草帘压盖技术的稻谷表层及上层温湿度、水分、脂肪酸值指标等比无粮面隔热材料储粮仓房的稻谷变化幅度小、水分减量少、脂肪酸值升高幅度少。由此可见,储粮仓房粮面隔热技术能较好地保存好稻谷的品质,是一种很实用的控温科技储粮措施,能够降本增效,提高水稻的商品价值和社会经济效益。

关键词：储粮仓房粮面隔热稻草帘

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CRH380BG型动车组塞拉门主锁故障分析及改进

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大连交通大学学报 2020年第2期41卷 24-26页

作者：郝增涛郭丹阳张晓明李冬中车长春轨道客车股份有限公司工程研发中心吉林长春130062

针对CRH380BG型动车组塞拉门主锁在运用过程中的典型故障,重点分析故障发生的原因并提出解决措施.通过优化开门控制逻辑、改进主锁解锁方式,可有效解决主锁未在规定的时间内解锁或复位故障,保证了车辆的正常运营.

关键词：动车组塞拉门故障

Efficient red perovskite quantum dot light-emitting diode fabricated by inkjet printing

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Materials Futures 2022年第1期1卷 135-141页

作者： danyang Li Junjie Wang Miaozi Li Biao guo Lan Mu Yu Luo Yi Xiao Chaohuang Mai Jian Wang Junbiao Peng Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640People’s Republic of China

Perovskite quantum dots(PeQDs)are considered potential display materials due to their high color purity,high photoluminescence quantum yield(PLQY),low cost and easy film *** this work,a novel electroluminescence(EL)device consisting of the interface layer of long alkyl-based oleylammonium bromide(OAmBr),which passivates the surface defects of PeQDs and adjusts the carrier transport properties,was *** PLQY of the OAmBr/PeQD bilayer was significantly improved.A high-performance EL device with the structure of indium tin oxide/poly(3,4-ethylenedioxythiophene)polystyrene sulfonate/poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine)/OAmBr/PeQDs/2,2′,2′′-(1,3,5-benzinetriyl)-tris(1-phenyl-1H benzimidazole)/LiF/Al was constructed using a spin-coating method.A peak external quantum efficiency(EQE)of 16.5%at the emission wavelength of 646 nm was ***,an efficient matrix EL device was fabricated using an inkjet printing method.A high-quality PeQD matrix film was obtained by introducing small amounts of polybutene into the PeQDs to improve the printing *** EQE reached 9.6%for the matrix device with 120 pixels per inch and the same device structure as that of the spin-coating one.

关键词： perovskite quantum dot light-emitting diode inkjet print