兰州大学机构库

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Divergent scaling of fine-root nitrogen and phosphorus in different root diameters, orders and functional categories: A meta-analysis 期刊论文
Forest Ecology and Management, 2021, 卷号: 495
Authors:  Wang, Zhiqiang;  Huang, Heng;  Yao, Buqing;  Deng, JM(邓建明);  Ma, Zeqing;  Niklas, Karl J.
Favorite  |  View/Download:9/0  |  Submit date:2021/08/12
Ecosystems  Forestry  Phosphorus  Scaling laws  Divergents  Fine roots  N:P ratio  Numerical values  Plant functional groups  Scaling exponent  Scaling relationships  Scaling theories  Terrestrial ecosystems  Woody species  
Modeling and numerical simulation of heat and mass transfer in the cave wall of the Mogao Grottoes in China 期刊论文
BUILDING AND ENVIRONMENT, 2021, 卷号: 201
Authors:  Bi, Wenbei;  Yan, Zengfeng;  Zhang, Zhengmo;  Yao, Shanshan;  Zhang, Junjie;  Wang, Xudong
Favorite  |  View/Download:2/0  |  Submit date:2021/08/12
Mural  Calculation model  Temperature  Relative humidity  Heat and mass transfer  Cultural heritage  
Constraints on multicomponent dark energy from cosmological observations 期刊论文
PHYSICAL REVIEW D, 2021, 卷号: 104, 期号: 2
Authors:  Wang, Ke;  Chen, Lu
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A two-parameter block triangular preconditioner for double saddle point problem arising from liquid crystal directors modeling 期刊论文
NUMERICAL ALGORITHMS, 2021
Authors:  Zhu, Jun-Li;  Wu, YJ(伍渝江);  Yang, Ai-Li
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Double saddle point problem  TPBT preconditioner  Eigenvalue analysis  Preconditioned matrix  Optimal parameter  
基于机器学习算法的车险索赔频率预测 学位论文
, 兰州: 兰州大学, 2021
Authors:  邱文静
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传统精算模型  ICANN  机器学习算法  索赔频率  
侧向支承钢梁弹性弯扭失稳临界弯矩研究 学位论文
, 兰州: 兰州大学, 2021
Authors:  彭代斌
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简支工字钢梁  侧向支承  弯扭屈曲  临界弯矩  有限元分析  
Hopf bifurcation of a multiple-delayed predator-prey system with habitat complexity 期刊论文
MATHEMATICS AND COMPUTERS IN SIMULATION, 2021, 卷号: 180, 页码: 1-23
Authors:  Wang, Shufan;  Tang, Haopeng;  Ma, Zhihui
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Predator-prey system  Habitat complexity  Time delay  Stability  Hopf bifurcation  
Hopf bifurcation of a multiple-delayed predator–prey system with habitat complexity 期刊论文
Mathematics and Computers in Simulation, 2021, 卷号: 180, 页码: 1-23
Authors:  Wang, Shufan;  Tang, Haopeng;  Ma, Zhihui
Favorite  |  View/Download:13/0  |  Submit date:2020/12/16
Ecosystems  Predator prey systems  StabilityBifurcating periodic solutions  Center manifold theory  Critical condition  Dynamical behaviors  Habitat complexity  Predator populations  Stability of equilibrium  Stability properties  
Splash function for the collision of sand-sized particles onto an inclined granular bed, based on discrete-element-simulations 期刊论文
Powder Technology, 2021, 卷号: 378, 页码: 348-358
Authors:  Yin, Xin;  Huang, N(黄宁);  Jiang, Cong;  Parteli, Eric J.R.;  Zhang, J(张洁)
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Finite difference method  Numerical methods  Numerical models  Particle size  Trajectories  VelocityDiscrete element simulation  Experimental evidence  Horizontal surfaces  Incident particles  Individual particles  Particle impact velocities  Particle trajectories  Sand-sized particles  
A tabletop experimental system for investigating ultrafast atomic dynamics based on femtosecond extreme ultraviolet photons 期刊论文
Wuli Xuebao/Acta Physica Sinica, 2020, 卷号: 69, 期号: 23
Authors:  Hai, Bang;  Zhang, Shao-Feng;  Zhang, Min;  Dong, Da-Pu;  Lei, Jian-Ting;  Zhao, Dong-Mei;  Ma, Xin-Wen
Favorite  |  View/Download:9/0  |  Submit date:2021/01/18
Atom lasers  Atoms  Diffraction  Electrons  Extreme ultraviolet lithography  Free electron lasers  Harmonic analysis  Inert gases  Laser pulses  Light transmission  Molecules  Phase matching  Photons  Synchrotron radiation  Ultraviolet lasers  Wavefronts  Waveguides  Extreme Ultraviolet  Extreme ultraviolet light sources  Extreme ultraviolets  Gas-filled hollow waveguides  High order harmonic generation  Phase matching conditions  Reaction microscopes  Ultra-fast dynamics