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Determinant Analysis of the of Adoption of Raising Sheep in Folds by Farmers in the Semiarid Loess P
[会议论文] 作者:Fengming Li,
来源:2012杨凌国际农业科技论坛 年份:2012
...
Determinant Analysis of the Adoption of Raising Sheep in Folds by Farmers in the Semiarid Loess Plat
[会议论文] 作者:Fengming Li,
来源:2012杨凌国际农业科技论坛 年份:2012
...
Determinant Analysis of the Adoption of Raising Sheep in Folds by Farmers in the Semiarid Loess Plat
[会议论文] 作者:Fengming Li,
来源:2012杨凌国际农业科技论坛 年份:2012
...
Determinant Analysis of the of Adoption of Raising Sheep in Folds by Farmers in the Semiarid Loess P
[会议论文] 作者:Fengming Li,
来源:2012杨凌国际农业科技论坛 年份:2012
...
[期刊论文] 作者:Fengming LI,Zhiguang SONG,,
来源:Applied Mathematics and Mechanics(English Edition) 年份:2015
The piezoelectric materials are used to investigate the active vibration control of ordered/disordered periodic two-span beams.The equation of motion of each su...
[会议论文] 作者:Yu Wang,Fengming Li,
来源:The 4th International Conference on Dynamics, Vibration and 年份:2014
...
Aerothermoelastic behaviors of nonlinear multi-span panels with lattice sandwich cores in supersonic
[会议论文] 作者:Zhiguang Song,Fengming Li,
来源:The 4th International Conference on Dynamics, Vibration and 年份:2014
Multi-span structures with internal supports are widely used in the aircraft industry.Due to the strong abilities of energy absorption, heat insulation as well as noise reduction, lattice sandwich str...
[期刊论文] 作者:Jinqiang Li,Fengming Li,Yueshe,
来源:固体力学学报:英文版 年份:2008
波浪繁殖用有限差别的时间域(FDTD ) 在二维的混乱压电的 phononic 晶体被学习方法。为混乱的不同的格,传播系数是计算的。乐队差距上的混乱的影响被调查。结果证明在压电的 p...
[期刊论文] 作者:Yize Wang,Fengming Li,Yuesheng,
来源:力学学报:英文版 年份:2009
In this paper,the elastic wave propagation in atwo-dimensional piezoelectric phononic crystal is studiedby considering the mechanic-electric coupling.The g...
[期刊论文] 作者:Fengming Li,Yuesheng Wang,Chao,
来源:力学学报:英文版 年份:2006
就联合的 mechnoelectrical 而言,在混乱周期的分层的压电的结构的嘘波浪的本地化被学习。在对层正常、正切的方向宣传的波浪被考虑。在二个连续单位房间之间的转移矩阵根据连...
[期刊论文] 作者:Jinqiang Li,Fengming Li,Yueshe,
来源:固体力学学报(英文版) 年份:2004
The wave propagation is studied in two-dimensional disordered piezoelectric phononie crystals using the finite-difference time-domain (FDTD) method. For differe...
[期刊论文] 作者:Chunchuan Liu,Fengming Li,Wenh,
来源:固体力学学报(英文版) 年份:2004
In this paper,the disturbance propagation and active vibration control of a finite L-shaped beam are studied.The dynamic response of the structure is obtained b...
Environmental anomalies in the northeastern East China Sea during the last 3 000 years: implications
[期刊论文] 作者:CHANG Fengming,LI Tiegang,ZHUA,
来源:黑龙江科技学院学报 年份:2010
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:Yize Wang,Fengming Li,Kikuo Ki,
来源:固体力学学报:英文版 年份:2008
在有起始的应力的混乱的周期的压电的杆的有弹性的波浪本地化用转移矩阵和 Lyapunov 代表方法被学习。电场作为伪静电干扰被接近。乐队差距特征上的起始的压力的效果被调查。...
[期刊论文] 作者:LI Caifeng MA Fengming LI Wenh,
来源:东北农业大学学报:英文版 年份:2007
The content of sugar is influenced by sucrose synthase (SS) activity in roots. The effects of nitrogen level in the amino- nitrate ratio on SS activity of leave...
Formation mechanism and height calculation of the caved zone and water-conducting fracture zone in s
[期刊论文] 作者:Lei Li,Fengming Li,Yong Zhang,,
来源:国际煤炭科学技术学报:英文版 年份:2020
To study the heights of the caved zone and water-conducting fracture zone in backfill mining,the failure mechanism of strata during backfill mining was analyzed...
[期刊论文] 作者:Yize Wang,Fengming Li,Kikuo Ki,
来源:固体力学学报(英文版) 年份:2004
The elastic wave localization in disordered periodic piezoelectric rods with initial stress is studied using the transfer matrix and Lyapunov exponent method. T...
[期刊论文] 作者:Fengming Li,Chunchuan Liu,Tingwei Liang,,
来源:Acta Mechanica Solida Sinica 年份:2013
The transient wave propagation in the finite rectangular Mindlin plate is investigated by the analytical and experimental methods. The generalized ray method (G...
[会议论文] 作者:Lingchang Meng,Fengming Li,Wei Zhang,
来源:The 4th International Conference on Dynamics, Vibration and 年份:2014
The chaotic motion of a fully simply supported thin rectangular plate with nonlinear deflection subjected to axial subsonic airflow and transverse harmonic exci...
Bifurcation and chaos properties of nonlinear lattice sandwich composite panels resting on Winkler-P
[会议论文] 作者:Yuyang Chai,Fengming Li,Zhiguang Song,
来源:The 5th International Conference on Dynamics, Vibration and 年份:2018
Bifurcation and chaos analyses of nonlinear lattice sandwich composite panels resting on Winkler-Pasternak elastic foundations in supersonic airflow are carried out in this paper.The first-order shear...
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