cusp相关论文
Drought generally has significant impacts on crops.It is essential to quantitatively evaluate the relationship between c......
This paper verifies the singularity conjecture for Jacobi forms with higher degree in some typical cases, and gives cons......
为了研究岩体在水平力(N)和垂直力(P)作用下运动的稳定性问题,本文对简化的岩体系统建立了突变理论模型,用以定量描述引起运动失稳......
目的探讨关于CUSP在门急诊输液患者防跌倒管理中的应用效果。方法选取2019年1月至2020年1月我院收治的100例门急诊输液患者作为研......
目的：研究第三磨牙牙尖数目与牙根类型关系，从而为第三磨牙的顺利拔除提供帮助。方法：记录519颗上颌和348颗下颌完整第三磨牙牙合面牙......
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Nine years (2001–2009) of data from the Cluster spacecraft are analyzed in this study of the Earth’s mid- and high-alt......
Inter-hemispheric comparisons of geospace environment in the polar regionsA proposed cooperative res
本文通过对荣华二采区10...
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......
滩角是海滩上很有意思的一种地形，引起了众多研究者的关注。现在关于滩角的争论还很多，笔者主要对滩角成因和地形动力特征以及滩角与......
In this paper we proposed a novel exact fixed-node quantum Monte Carlo (EFNQMC)algorithm,which is a self-optimizing and ......
Criterion of local energy release rate of gob instability in deep mines considering unloading stress
The stress path characteristics of surrounding rock in the formation of gob were analyzed and the unloading was solved. ......
运用EMBOSS(The european molecular biology open software suite)软件包中的CHIPS(Condonheterozygosity in a protein coding s......
Numerical Simulation of Ionization Enhancement in the Topside Ionosphere of Cusp Foot-Point Region C
<正>The Graz Ionospheric Flux Tube Simulations (GIFTS) has been improved.The improved GIFTS model was used to numericall......
According to the engineering features of subgrade cave roof in karst region, the clamped beam model of subgrade cave roo......
Nine years(2001–2009)of data from the Cluster spacecraft are analyzed in this study of the Earth’s mid-and high-altitu......
目的:分析不同牙尖斜度对种植义齿特别是基桩应力分布的影响.方法:对下颌骨标本扫描,应用ANSYS建立模型并加载分析不同牙尖斜度下......
<正>一个实际的电子张弛振子系统呈现“累积、触发”型的动力学行为.作为这种模型的简化,我们考虑在一个方波调制上阈值和一个恒定......
在薄隔水层井筒底板突水突变模型的基础上,建立了承压水上井筒底板隔水层加固厚度的突变模型,利用该模型可确定井筒底板隔水层的最......
讨论了单圆弧和双圆弧逼近曲线的优缺点，并综合应用两者的优点，用混合单双圆弧以允差逼近参数曲线，使得曲线在各分段点处逼近圆弧的光......
Inter-hemispheric comparisons of geospace environment in the polar regionsA proposed cooperative res
The Chinese Zhongshan Station in Antarctica and the stations in Svalbard (Auroral station at Longyearbyen and NP station......
本文用微分几何的方法对圆环面上任意一点的邻域形状进行了研究,并应用于完成环面与其它面相贯截交中交线结点处切线方向的作图确......
本文妥析法对平面铰连四杆机构的连杆曲线尖点进行研究，得到了这类平面曲线产生第一类与第二类尖点的判定条件。......
主要研究了涉及重整化变换的一族有理函数 Tnλ Fatou 分支的拓扑性质。事实上，若 D 是有理函数Tnλ的任意1个 Fatou 分支，对任意的......
生物矿化在自然界广泛存在。矿化过程通过精确控制形成精致、有序的分级结构,如骨骼、牙齿、贝壳、齿舌等,迄今已发现约60多种生物......
求解一型仅在扩散系统，并根据其边界条件的圆对称性选取了极柱坐标系，用图形方法求解出所取控制参量的临界值及产生分岔的特征量，并用......
为有效控制晶体尺寸、金属杂质含量、掺杂元素及氧分布的均匀性,提出在非均匀轴对称勾形磁场中利用磁控提拉法生长硅单晶.用有限差......
考虑到断层两盘围岩的粘弹性和断层的应变弱化 ,建立了断层地震的简化力学模型 ,首先证明了该模型对应于尖点突变 ,然后利用尖点突......
本文扼要阐明了突变理论的基本思想，介绍了突变理论的Ａ３尖点突变模型，建立了断层过程中的势函数，在此基础上，通过对平衡曲面方程的Ｔａｙｌｏｒ级数展......
利用Cluster卫星数据,选取2001—2010年期间的616个极尖区穿越事件,研究了行星际磁场(IMF)的大小和方向对极尖区位形的影响.结果表......
Catastrophe theory was used to investigate the fracture behavior of thin-wall cylindrical tubes subjected to nternal exp......
为临床拔除下颌第三磨牙提供参考数据。方法：对207颗离体下颌第三磨牙的牙冠与牙根进行解剖学观察和比较，从中找出冠形、根形以及冠......
Background: Perimembranous ventricular septal defect combined with right coronary cusp bulge generally should be treated......
Guastello’s polynomial regression method for solving cusp catastrophe model has been widely applied to analyze nonlinea......
Using the bifurcation theory of dynamical systems to a class of nonlinear fourth order analogue of the B(m,n) equation, ......
Idiopathic monomorphic ventricular tachycardia and premature ventricular complexes (PVCs) commonly arise from the right ......
南极中山站和戴维斯站（不变磁纬７４．５°）白天中午位于磁层极隙区，夜间位于极盖区或极光带的极向边沿，两站均安装了完全相同的感应式磁力......
本文从ＥＬＩＳＣＡＴ探测资料确认，沉降粒子对极光区电离层的电离生成率有极重要的作用，但高能和低能粒子的有效电离等高度范围完全不同，另一方面，磁......
ＴｗｏｔｙｐｅｓｏｆｉｏｎｏｓｐｈｅｒｉｃｄｉｓｔｕｒｂａｎｃｅｓｉｎｔｈｅａｕｒｏｒａｌｒｅｇｉｏｎＳｈｅｎＣｈａｎｇｓｈｏｕ（沈长寿）ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｐｈｙｓｉｃｓ，ＰｅｋｉｎｇＵｎｉｖｅｒｓｉｔｙ，Ｂｅｉｊｉｎｇ１００８７１，Ｃ.........
Two induction magnetometers have been installed at Zhongshan Station and Davis Station, Antarctica respectively. We adop......
Two induction magnetometers have been installed at Chinese Zhongshan Station and Australia Davis Station, Antarctica res......
This paper describes the Auroral Station in Adventdalen near Longyearbyen, Svalbard (78°N, 15°E). The main ins......
ＴＨＥＳＴＵＤＹＯＦＣＨＡＭＢＥＲＲＯＣＫＢＵＲＳＴＢＹＴＨＥＣＵＳＰＭＯＤＥＬＯＦＣＡＴＡＳＴＲＯＰＨＥＴＨＥＯＲＹＰａｎＹｉ－ｓｈａｎ（潘一山），ＺｈａｎｇＭｅｎｇ－ｔａｏ（章梦涛），ＬｉＧｕｏ－ｚｈｅｎｇ（李国臻）（ＦｕｘｉｎＭｉｎｉｎｑＩｎｓ.........
[021]取向的γ—TiAl单晶（Ti—56％Al,原子分数）在－196－1000℃温度范围内压缩变形时主要形变方式为｛111｝（110］普通位错的滑移低温时，（1／2）（110］普通......
This paper presents an attempt at the application of catastrophe theory to the stabilityanalysis of J-controlled crack g......
地下水资源的合理利用与水质监控是关系民生的大事。地下水流动系统的研究是实现地下水资源定量评价与预测的重要工具，为地下水资源......
中国在斯瓦尔巴特(Svalbard)群岛新奥尔松(Ny-(A)lesund)地区建立了一个永久性科学考察站--北极黄河站.北极黄河站(78.92°N,1......
本文分析了2002年9月10日Cluster四颗卫星穿越南极和北极极隙区期间的观测资料。这两次穿越是在弱而稳定的南向行星际磁场（IMF）条件......
We give the topology changing of the silhouette in 3D space while others study the projections in an image. Silhou- ette......
