查询词典 bifurcation

The climatological mean and seasonal variability of the current systems are well inverted, especially the Tsushima Warm Current and its bifurcation, the East Korean Warm Current, the Japan nearshore branch, the confluence of the EKWC, and the North Korean Cold Current near the Korean coast and flows northeastward along the subpolar front, and a mesoscale anticyclonic eddy in the Ulleng/Tsushima Basin.

日本海的环流系统的季节变化都作了较好的模拟，特别是对马暖流和它的分叉、东朝鲜暖流，日本近岸分支、东朝鲜暖流汇流、朝鲜半岛沿岸的本朝鲜寒流、以及一个Tsushima海盆中尺度顺时针涡旋。

The critical bifurcation parameter intervals of superharmonic periodic impact motions are deduced, and numerical simulations are used to verify the results.

本论文讨论了碰撞振动系统的周期碰撞运动，得到了超谐周期碰撞运动的存在性和稳定性，推导出亚谐周期运动的临界分岔参数区间，并利用数值模拟进行验证。

In this dissertation, periodic impact motions in vibro-impact systems are studied, and the existence and stability of superharmonic periodic impact motions are obtained. The critical bifurcation parameter intervals of superharmonic periodic impact motions are deduced, and numerical simulations are used to verify the results.

中文题名碰振或约束系统的全局分析及稳定性研究副题名外文题名 Studies on global analysis and stability in vibro-impact or constraint systems 论文作者张彦梅导师陆启韶教授学科专业一般力学与力学基础研究领域\研究方向学位级别博士学位授予单位北京航空航天大学学位授予日期2002 论文页码总数95页关键词碰振系统转子系统多体系统碰撞振动馆藏号BSLW /2003 /O322 /1 本论文讨论了碰撞振动系统的周期碰撞运动，得到了超谐周期碰撞运动的存在性和稳定性，推导出亚谐周期运动的临界分岔参数区间，并利用数值模拟进行验证。

To participate in exploration of the scenic spots, Zhu Shi-ping, deputy director of reflection, so that they were surprised that, in the down-hole not far from the bifurcation can be heard and can be used to light torch has been identified as swiftlet flying birds, this cave habitat Birds mountain is only in the Shennongjia mountains over 2,000 meters in order to find traces of caves, where indeed only about 1,000 meters above sea level, and did not find largest export, its where Entering puzzling.

参加探查的景区副主任朱诗平反映，令他们惊奇的是，在往下的岔洞不远处，能听到并能用手电光照到被认定为金丝燕的飞行鸟类，这种穴栖鸟类山往往只有在神农架2000米以上的高山岩洞才能发现踪迹，当地海拔确却只有约1000米，且并未发现大的出口，其从何而入令人费解。

By the verification of examples and the application an eleven-dimensional SSO system, as well as the testification of common QR method, it is shown that the method is effective for the identification of simple Hopf bifurcation of high dimensional system.

在第一部分中，本文根据Hopf分岔的代数判据，针对高维非线性动力系统，提出了半解析半数值的Hopf分岔识别方法。

Bifurcation doubts vision loss Xie sank off the break away tidy up.

分岔。 分岔疑惑茫然谢落挣脱拾掇憧憬沉没。

Through topological theory and principle on flow analysis, draw out the topological characteristic of near field in round jet: the amount, connecting forms of critical point and primary bifurcation.

通过拓扑分析的方法，给出了横流中圆孔射流近区流场的拓扑性质：流场中奇点的类型、数目、连接方式及生成的主要流动分离线。

Through topological analysis, draw out the topological characteristic of near field in slot jet: the amount, connecting forms of critical point and primary bifurcation, it have the same topological characteristic with round jet in despite of they have a different flow forms.

我们发现虽然有限长窄缝射流与圆孔射流在流动情况上存在一定差异，但它们近区流场的拓扑性质却是一致的。

Unlike the conventional indirect method, it can directly implement the generator field and armature current limits accurately, thereby assuring power flow convergence and voltage collapse point identification during tracing the PV curve when generator limits constraints are considered. The critical limit constraint equation is introduced in the corrective stage of the continuation method as the additional equation to solve the limit induced bifurcation point accurately.

给出新的发电机电流极限约束的直接处理算法，解决了计及发电机电流约束时，潮流难于收敛和不易精确求出电压崩溃点的问题；对不易精确求得的极限诱导分岔点，通过在连续潮流法的校正步骤中将关键的极限约束方程作为附加方程来快速而精确地求解。

Transversality condition is used to characterize the stability of such equivariant bifurcation problems.

本文第五章利用奇点理论中光滑映射芽的左右等价关系，考虑在左右等价群的一个子群的作用下，分歧参数具有对称性的等变分歧问题的开折问题，得到了相应的通用开折定理。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。