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Dynamic analysis and numerical simulation of Spider-Insect system with migration

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International Journal of Biomathematics 2019年第6期12卷 199-220页

作者： hongling jiang Lijuan Wang Hailong Yuan Institute of Mathematics and Information Science Baoji University of Arts and Sciences Baoji Shaanxi 721013P.R.China School of Arts and Sciences Shaanxi University of Science and Technology Xi'an Shaanxi 710021P.R.China

Taking the spider as a controller of the insects is a very important Green Agricultural *** established a partial differential equation model by adding diffusion term into classical Spider-Insect *** the fixed point index theory,the sufficient condition for the existence of positive solutions is *** on the method of parabolic equations,the persistence of positive solution is also ***,the theoretical results are verified by numerical *** work shows that intrinsic growth rate of an insect is an important factor that affects its existence and persistence under certain conditions.

关键词： Spider-Insect system dynamic analysis numerical simulation

毛细管电泳HbA+HbA2/HbA初筛联合血液学指标RDW筛查诊断新生儿β-地中海贫血的价值分析

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蛇志 2024年第3期36卷 353-356,366页

作者：何伟佳黄倩文蒋红玲王艳广西壮族自治区南溪山医院检验科广西桂林541002 广西壮族自治区南溪山医院肾病内科广西桂林541002

目的分析毛细管电泳HbA+HbA2/HbA联合RDW诊断新生儿β-地中海贫血的价值。方法选取2021年1月至2023年12月在我院分娩的2009例新生儿进行毛细管电泳、血液学指标及基因检查筛查β-地中海贫血,描述β-地中海贫血基因类型分布情况,比较非β... 详细信息

目的分析毛细管电泳HbA+HbA2/HbA联合RDW诊断新生儿β-地中海贫血的价值。方法选取2021年1月至2023年12月在我院分娩的2009例新生儿进行毛细管电泳、血液学指标及基因检查筛查β-地中海贫血,描述β-地中海贫血基因类型分布情况,比较非β-地中海贫血组与β-地中海贫血组的毛细管电泳HbA、HbA2/HbA指标、血液学指标,分析筛检效能。结果基因检测β-地中海贫血阳性新生儿12例,总体检出率为0.60%,其中β-地中海贫血单纯杂合突变11例(91.67%),β-地中海贫血复合杂合突变1例(8.33%),以β(CD41-42)、β(IVS-Ⅱ-654)突变常见,分别占16.67%、16.67%。β-地中海贫血组新生儿HbA指标水平显著低于非β-地中海贫血组(P0.05);β-地中海贫血组的RDW水平高于非β-地中海贫血组,差异有统计学意义(P<0.05)。毛细管电泳HbA+HbA2/HbA及联合RDW检测的阳性预测值、阴性预测值、灵敏度、特异度最高,分别为90.08%、88.34%、89.74%、86.23%。结论毛细管电泳HbA+HbA2/HbA初筛联合血液学指标(RDW)筛查新生儿β-地中海贫血的效能高,可弥补毛细管电泳HbA+HbA2/HbA筛查假阳性率高的缺点,值得临床推广应用。

关键词：毛细管电泳法血液学指标 β-地中海贫血新生儿

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高校线上线下教育融合难点及其突破路径探索

中国现代教育装备 2024年第19期 106-110页

作者：蒋鸿玲王磊类骁刘晓丹北京信息科技大学信息管理学院北京100192

为了更好地实现线上线下教育融合,提升教学质量,促进学生发展,在归纳高校线上线下教育融合影响因素的基础上,以信息管理与信息系统专业为例,结合该专业学科特点,对线上线下教育融合的难点进行总结,并提出对应的突破路径。实践结果表明,... 详细信息

为了更好地实现线上线下教育融合,提升教学质量,促进学生发展,在归纳高校线上线下教育融合影响因素的基础上,以信息管理与信息系统专业为例,结合该专业学科特点,对线上线下教育融合的难点进行总结,并提出对应的突破路径。实践结果表明,学生的综合能力得到提升,促进了学生的未来发展。

关键词：线上线下教育融合信管专业突破路径

具有防御能力的Leslie-Gower捕食食饵模型的平衡态正解分析

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西安工程大学学报 2024年第4期38卷 133-140,151页

作者：王利娟杨佳娆姜洪领金露杨帆宝鸡文理学院数学与信息科学学院陕西宝鸡721013

在Leslie-Gower捕食食饵模型中引入Monod-Haldane功能反应函数,研究齐次Dirichlet边界下食饵的防御能力对捕食系统平衡态正解的影响。利用极大值原理、上下解方法、分歧理论和稳定性理论等建立了平衡态正解的先验估计、存在的充要条件... 详细信息

在Leslie-Gower捕食食饵模型中引入Monod-Haldane功能反应函数,研究齐次Dirichlet边界下食饵的防御能力对捕食系统平衡态正解的影响。利用极大值原理、上下解方法、分歧理论和稳定性理论等建立了平衡态正解的先验估计、存在的充要条件和局部稳定条件。结合数值模拟对平衡态正解进行定量分析。研究结果表明,只要食饵和捕食者的内禀生长率大于某个常数,就可产生共存模式。同时食饵防御能力会对捕食者产生抑制效应。特别地,当食饵具有较高生长率时,食饵抵御捕食者的能力更强。

关键词： Leslie-Gower捕食食饵模型 Monod-Haldane功能反应函数平衡态正解数值模拟

A Transcriptional Network Promotes Anthocyanin Biosynthesis in Tomato Flesh

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Molecular Plant 2020年第1期13卷 42-58页

作者： Chuanlong Sun Lei Deng Minmin Du Jiuhai Zhao Qian Chen Tingting Huang hongling jiang Chang-Bao Li Chuanyou Li State Key Laboratory of Plant Genomics National Centre for Plant Gene Research(Beijing)Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(North China) Ministry of AgricultureBeijing Vegetable Research CenterBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China State Key Laboratory of Crop Biology College of AgronomyShandong Agricultural UniversityTai'anShandong Province 271018China lnstitute of Vegetable Qingdao Academy of Agricultural SciencesQingdaoShandong Province 266100China

Dietary anthocyanins are important health-promoting antioxidants that make a major contribution to the quality of fruits. It is intriguing that most tomato cultivars do not produce anthocyanins in fruit. However, the purple tomato variety Indigo Rose, which has the dominant Aft locus combined with the recessive atv locus from wild tomato species, exhibits light-dependent anthocyanin accumulation in the fruit skin. Here, we report that Aft encodes a functional anthocyanin activator named SlAN2-like, while atv encodes a nonfunctional version of the anthocyanin repressor SlMYBATV. The expression of SlAN2-like is responsive to light, and the functional SlAN2-like can activate the expression of both anthocyanin biosynthetic genes and their regulatory genes, suggesting that SlAN2-like acts as a master regulator in the activation of anthocyanin biosynthesis. We further showed that cultivated tomatoes contain nonfunctional alleles of SlAN2-like and therefore fail to produce anthocyanins. Consistently, expression of a functional SlAN2-like gene driven by the fruit-specific promoter in a tomato cultivar led to the activation of the entire anthocyanin biosynthesis pathway and high-level accumulation of anthocyanins in both the peel and flesh. Taken together, our study exemplifies that efficient engineering of complex metabolic pathways could be achieved through tissue-specific expression of master transcriptional regulators.

关键词： whole-genome duplication paleopolyploidy adaptive evolution phylogenomic Cretaceous-Paleocene boundary gene regulatory network

Efficient generation of pink-fruited tomatoes using CRISPR/Cas9 system

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Journal of Genetics and Genomics 2018年第1期45卷 51-54页

作者： Lei Deng Hang Wang Chuanlong Sun Qian Li hongling jiang Minmin Du Chang-Bao Li Chuanyou Li State Key Laboratory of Plant Genomics National Centre for Plant Gene Research (Beijing) Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China State Key Laboratory of Crop Biology College of Agronomy Shandong Agricultural University Tai'an 271018 China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) Ministry of Agriculture Beijing Vegetable Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 China

Tomato （Solanum lycopersicum） is the leading vegetable crop worldwide and an essential component of a healthy diet （Lin et al., 2014; Du et al., 2017）. Fruit color is regarded as one of the most important commercial traits in tomato （The Tomato Genome Consortium, 2012）. Consumers in different regions have different color preferences. For example, European and American consumers prefer red tomatoes, while pink tomatoes are more pop- ular in Asia countries, particularly in China and Japan （Ballester et al., 2010; Lin et al., 2014）. However, most of tomato breeding ma- terials are red-fruited, thus the generation of pink-fruited materials is very important for Asian tomato production. Metabolomics and genetics studies demonstrate that the pink trait results from the absence of yellow-colored flavonoid naringenin chalcone （NarCh） in the peels,

关键词： Efficient generation of pink-fruited tomatoes using CRISPR/Cas9 system CR

Rapid breeding of pink-fruited tomato hybrids using the CRISPR/Cas9 system

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Journal of Genetics and Genomics 2019年第10期46卷 505-508页

作者： Tianxia Yang Lei Deng Wei Zhao Ruoxi Zhang hongling jiang Zhibiao Ye Chang-Bao Li Chuanyou Li Key Laboratory of Horticultural Plant Biology Ministry of EducationHuazhong Agricultural University State Key Laboratory of Plant Genomics National Centre for Plant Gene Research (Beijing)Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of Sciences University of Chinese Academy of Sciences Key Laboratory of Horticultural Plant Biology Ministry of Education Huazhong Agricultural Universrty Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) Ministry of AgricultureBeijing Vegetable Research CenterBeijing Academy of Agriculture and Forestry Sciences

As one of the most important vegetables,tomato (Solanum lycopersicum) is extensively produced and consumed worldwide and substantially contributes to human nutrition and health (The Tomato Genome Consortium,2012).Although red tomatoes are the most common,pink tomatoes are more popular in Asia,particularly in China and Japan,because of their better taste (Ballester et al.,2010;Zhu et al.,2018).Compared with red tomatoes,pink tomatoes fail to accumulate the yellow-colored flavonoid pigment,naringenin chalcone (NarCh),in their peels,resulting in a colorless peel phenotype (Adato et al,2009;Ballester et al.,2010).

关键词： CRISPR/Cas9 breeding colored

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一类蜘蛛-昆虫模型平衡态正解的存在性

中山大学学报（自然科学版） 2016年第3期55卷 64-67,88页

作者：姜洪领宝鸡文理学院数学与信息科学学院

研究一类单食饵-双捕食者的蜘蛛-昆虫模型。利用特征值变分原理和极值原理给出正解的先验估计及正解存在的必要条件。应用空间分解和隐函数定理得到正解存在的充分条件。结果表明,在特定条件下,系统共存态依赖于昆虫的生长率。

关键词：蜘蛛-昆虫模型平衡态正解存在性

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考虑储能充放电的孤岛微电网经济优化模型

实验室研究与探索 2022年第1期41卷 132-137页

作者：江宏玲安徽省水利部淮河水利委员会水利科学研究院合肥230088

针对孤岛微电网的实时、经济调度问题,提出一种新的优化模型。该模型充分考虑了储能系统过去一段时间的购电成本和未来一段时间的运行收益,确定当前一段时间内储能系统单元的合理能源调度。微电网中的每个单元在最大限度地提高自身运行... 详细信息

针对孤岛微电网的实时、经济调度问题,提出一种新的优化模型。该模型充分考虑了储能系统过去一段时间的购电成本和未来一段时间的运行收益,确定当前一段时间内储能系统单元的合理能源调度。微电网中的每个单元在最大限度地提高自身运行收益前提下,只需与相邻单元交换预期的电价和交易电能。经过优化后,参与经济调度的相邻单元可以同时实现电价与交易电能的一致性。引入交替方向乘子法得到最优解并对孤岛微电网在3种不同天气条件下分布式经济优化调度运行情况进行仿真,仿真结果验证了该策略模型的有效性。

关键词：分布式优化经济优化孤岛微电网交替方向乘数法