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期刊Periodic Solution for Stochastic Predator-Prey Systems with Nonlinear harvesting and Impulses
《线性代数与矩阵理论研究进展(英文)》2019年第4期89-103,共15页Yafei Yang Yuanfu Shao Mengwei Li 
In this paper, astochastic predator-prey systems with nonlinear harvesting and impulsive effect are investigated. Firstly, we show the existence and uniqueness of the global positive solution of the system. Secondly, ...显示全部
关键词:IMPULSES PERTURBATIONS Periodic Solution Non-Linear harvesting STOCHASTIC PREDATOR-PREY Systems Globally Attractive 
期刊Modeling and dynamics of an ecological-economic model
《生物数学学报:英文版》2019年第3期127-155,共29页Wei Liu Yaolin Jiang 
In this paper, an eco-economic model with harvesting on biological population is established, which takes the form of a differential-algebra system. The impact of the economic profit from harvesting upon the dynamics ...显示全部
关键词:PREDATOR-PREY harvesting HOPF BIFURCATION PARAMETERIZATION FORMAL series 
期刊Flip bifurcation and Neimark-Sacker bifurcation in a discrete predator prey model with harvesting
《生物数学学报:英文版》2020年第1期1-37,共37页Wei Liu Yaolin Jiang 
the National Nat­ural Science Foundation of China(Grant No.11871393);the Key Project of the International Science and Technology Cooperation Program of Shaanxi Research&Development Plan(Grant No.2019KWZ-08);the Science and Tech­nology Project founded by the Education Department of Jiangxi Province(Grant No.GJJ14775).
In this paper,a difference-algebraic predator prey model is proposed,and its complex dynamical behaviors are analyzed.The model is a discrete singular system,which is obtained by using Euler scheme to discretize a dif...显示全部
关键词:Predator prey harvesting Flip bifurcation Neimark Sacker bifurcation chaos. 
期刊微藻采收技术的研究进展
《微生物学通报》2020年第8期2571-2581,共11页才金玲 冯辰辰 倪国倩 何丹 李晓婷 唐娜 王广策 
天津市科学基金面上项目(17JCYBJC22900);天津科技大学大学生实验室创新基金(1803A203);天津市高等学校大学生创新训练计划(201910057148)。
微藻作为一种有巨大应用前景的生物质资源,在环境保护、废水处理和清洁能源等领域广泛应用。但是微藻采收成本过高严重限制了微藻产业的发展,因此,寻找一种经济、环保、高效的采收技术对促进微藻产业的发展具有十分重要的意义。本文分...显示全部
关键词:微藻 采收 絮凝 生物絮凝 
期刊带收获和自食的两种群竞争系统的全局渐近稳定性
《信阳师范学院学报:自然科学版》2003年第4期377-381,共5页赵君峰 蔡礼明 王三定 
文献[1]提出了一个带收获和自食的两种群竞争系统,讨论了该模型解的存在条件和正性,得到了一个正平衡点局部渐近稳定的充分条件,本文讨论了该平衡点的全局渐近稳定性和对成年种群的最优收获量.
关键词:自食 分阶段 平衡点 全局渐近稳定 收获 
期刊Novel Applications for Fog Water harvesting
《地球科学和环境保护期刊(英文)》2018年第3期26-36,共11页Gloria Morichi Lucas Bandeira Calixto Alessandra Zanelli 
In a scenario of climate changes and increasing stress upon available fresh water resources like rivers, lakes and aquifers, collecting fog water is a promising yet relatively unexplored potentiality. Providing suffic...显示全部
关键词:FOG WATER harvesting Urban REGENERATION WATER SCARCITY Sustainable WATER RESOURCE 
期刊Dual-tube Helmholtz resonator-based triboelectric nanogenerators for highly efficient harvesting of acoustic energy
《中国科学基金:英文版》2019年第4期33-33,共1页
With the support by the National Natural Science Foundation of China,the research team led by Prof.Xu MinYi(徐敏义) at Dalian Maritime University,cooperating with Prof.Wang ZhongLin at Georgia Institute of Technology,...显示全部
关键词:HELMHOLTZ harvesting RESONATOR 
期刊Hierarchical Honeycomb-Structured Electret/Triboelectric Nanogenerator for Biomechanical and Morphing Wing Energy harvesting
《纳微快报:英文版》2021年第8期136-151,共16页Kai Tao Zhensheng Chen Haiping Yi Ruirong Zhang Qiang Shen Jin Wu Lihua Tang Kangqi Fan Yongqing Fu Jianmin Miao Weizheng Yuan 
This research is supported by the National Natural Science Foundation of China Grant(Nos.51705429&61801525);the Fundamental Research Funds for the Central Universities,Guangdong Natural Science Funds Grant(2018A030313400);Space Science and Technology Foundation,111 Project No.B13044;UK Engineering and Physical Sciences Research Council(EPSRC)for support under grant EP/P018998/1,Newton Mobility Grant(IE161019)through Royal Society.
Flexible,compact,lightweight and sustainable power sources are indispensable for modern wearable and personal electronics and small-unmanned aerial vehicles(UAVs).Hierarchical honeycomb has the unique merits of compac...显示全部
关键词:Honeycomb-inspired structure Morphing wing energy harvesting Electret power generation Triboelectric nanogenerator Self-powered insole pressure mapping 
期刊缓冲筛式薯杂分离马铃薯收获机研制被引量:8
《农业工程学报》2019年第8期1-11,共11页魏忠彩 李洪文 苏国粱 孙传祝 刘文政 李学强 
山东省重大科技创新工程项目(2017CXGC0219);山东省泰山产业领军人才工程高效生态农业创新类项目(LJNY201615);"十三五"国家重点研发计划专项(2016YFD0701603-02);山东省农机化装备研发创新项目(2016YF034)
针对现有马铃薯收获机薯土分离效果不理想、伤薯率和破皮率较高等问题,该文采用"2级高频低幅振动分离+薯秧分离及侧输出+低位铺放"的薯土分离工艺,研制了一种缓冲筛式薯杂分离马铃薯收获机,该机具主要由挖掘装置、松土限深装...显示全部
关键词:农业机械 收获 马铃薯 振动分离 收获品质 
期刊一种木薯收获机仿生挖掘铲的设计方法被引量:2
《农机化研究》2018年第10期63-68,共6页益爱丽 廖宇兰 吕凯英 熊佳 
国家自然科学基金项目(51365011)
针对的木薯挖掘铲存在的碎土困难、挖掘铲质量大及铲尖磨损严重等问题,基于仿生学原理,提出了一种模仿狗前爪结构的仿生木薯挖掘铲。首先,利用高倍率扫描仪对狗前爪下轮廓结构进行扫描提取,利用数据处理软件获取下轮廓结构的平面图,基...显示全部
关键词:收获机 木薯 挖掘铲 仿生 
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