1) second-order system
二阶系统
1.
Step response to the second-order system with zero;
有零点二阶系统的单位阶跃响应
2.
Analysis and application of performance index for transient responseof second-order system;
二阶系统的瞬态响应性能指标分析与应用
3.
This system includes oscilla-tor, second-order system, counter, decoder,circuit and Helmholtz coils etc.
本文介绍了一种磁场参数可调的磁场发生器,它由振荡器、二阶系统、计数器、译码器、功率电路、亥姆霍兹线圈等组成。
2) second order system
二阶系统
1.
Existence of periodic solutions of a class of second order systems at resonance;
一类共振二阶系统周期解的存在性
2.
Standard second order system index mark form and the interaction between time-frequency performance and system characteristic parameter are discussed;the correlation of system time-frequency performance index is founded;all of these show the practical significance in different analytical domains reflecting system dynamic performance.
讨论标准二阶系统指标形式及时频性能与系统特征参数的相互制约,建立系统时频性能指标的关联性,对于在不同分析域反映系统动态性能具有实际意义。
3) second order systems
二阶系统
1.
Periodic solutions of second order systems with subadditive potential;
具有次可加位势的二阶系统的周期解
2.
Existence of periodic solutions for a class of second order systems with sublinear nonlinearity;
一类带有次线性非线性项的二阶系统周期解的存在性
3.
Multiplicity of periodic solution is obtained for superquadratic nonresonance nonautonomous second order systems ü(t)+λu+F(t,u(t))=0 a.
利用Z2型山路定理获得超二次非共振非自治二阶系统u(0)-u(T)=u·(0)-u·(T)=0的多重周期解存在定理。
4) second-order Hamilton systems
二阶Hamilton系统
1.
Periodic solutions of the generalized second-order Hamilton systems;
一类推广的二阶Hamilton系统的周期解(英文)
2.
In this thesis, the periodic solutions of some nonautonomous second-order Hamilton systems with suitable conditions are studied through the least action principle and minimax theorems in variational methods.
本文主要利用变分方法中的极小作用原理和极小极大方法在适当的条件下讨论了二阶Hamilton系统周期解的存在性。
5) second order hamiltonian systems
二阶Hamilton系统
1.
Proves a sufficient condition for the existence of periodic solutions having prescribed period for a class of superquadratic second order Hamiltonian systems with linear restoring force.
给出一类具有线性恢复力的超二次二阶Hamilton系统存在给定周期的周期解的一个充分条件。
2.
Some solvability conditions, including sublinear,subquadralic and superquadratic, and the corresponding existence results are summed up for periodic solutions of the second order Hamiltonian systems obtained by using the minimax methods.
本文综述了用极小极大方法得到的关于二阶Hamilton系统周期解的可解性条件及相关结果,包括次线性条件,次二次条件和超二次条件等方面的近期结果。
6) second order Hamiltonian system
二阶Hamilton系统
1.
Existence of periodic solutions for second order Hamiltonian system
二阶Hamilton系统周期解的存在性
2.
With the aids of local linking theorem and mountain pass lemma, existence of periodic solutions of the second order Hamiltonian system under the new superquadratic conditions is obtained.
使用局部环绕定理和推广的山路引理, 得到了二阶Hamilton系统在满足新的超二次条件下周期解存在的结果。
3.
With the aid of minimax methods, existence of periodic solutions of a superquadratic second order Hamiltonian system is obtained.
用极小极大方法得到了一类超二次二阶Hamilton系统的周期解。
补充资料：二氧化双环戊二烯B阶树脂模塑料
分子式：
CAS号：
性质：又称二氧化双环戊二烯B阶树脂模塑料。以二氧化双环戊二烯B阶树脂为基料配制的能采用模塑方法成型的配混料。产品性能为：弯曲强度110MPa，冲击强度5.4kJ/m2；马丁耐热240℃；体积电阻率1.3×1016Ω·cm，介电强度24.5MV/m。由二氧化双环戊二烯B阶树脂，用石英粉等作填料，再加脱模剂配混制得。可用模塑法制成耐热、耐候制品用于军工和民用方面。
CAS号：
性质：又称二氧化双环戊二烯B阶树脂模塑料。以二氧化双环戊二烯B阶树脂为基料配制的能采用模塑方法成型的配混料。产品性能为：弯曲强度110MPa，冲击强度5.4kJ/m2；马丁耐热240℃；体积电阻率1.3×1016Ω·cm，介电强度24.5MV/m。由二氧化双环戊二烯B阶树脂，用石英粉等作填料，再加脱模剂配混制得。可用模塑法制成耐热、耐候制品用于军工和民用方面。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条