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- The phase field method is proposed based on the general Ginzburg-Landau theory of phase transitions. 相场方法不需要跟踪固液界面,因此在模拟枝晶生长方面有独特的优势。
- This paper presents a field method for integrating the dynamical equations of weakly nonholonomic systems. 本文将场方法推广应用于积分弱非完整系统的运动方程,并举例说明结果的应用。
- With the deformed relativistic mean field theory the properties of the superheavy nuclei (superscript 294)118 and (superscript 292)116 are studied. 摘要用形变的相对论平均场理论对超重核(上标294)118及(上标292)116的性质进行了研究。
- In the first part of this paper, the development of IPB and significance of studying by field method are discussed. 文中首先介绍了大电流母线的发展状况和对其进行场域研究的意义,并论述了国内外对它研究的概况及计算的方法。
- This problem describes BCS pairing. It is very convenient to construct the mean field theory using the functional integral representation. 此问题描述BCS配对。利用泛函积分表象来建立平均场理论是十分方便的。
- The growth of aluminum solidification dendrite has been simulated under disturbed and undisturbed condition, which based on the phase field method. 在相场法数学模型基础上,对有扰动和无扰动情况下的铝金属凝固枝晶生长进行了模拟;
- In this spirit, then we deduced the effective quark-quark interaction with confinement terms and the vacuum condensate at the mean field level in the framework of GCM. 本着这种精神,我们推出了具有囚禁特点的等效的夸克-夸克相互作用势,并在GCM的框架下计算了一些真空凝聚。
- Then a new idea that uses the artificial potential field method for EEG analysis is mentioned,and the analysis of the feas... 提出了将人工势场法用于脑电图分析的新思路,并对研究方案进行了可行性分析。
- The locally gauge invariant mean field approach is generalized from Abelian gauge groups to non-Abelian gauge groups. The SU(2) Yang-Mills-Higgs field coupling system is analyzed. 本文将定域规范不变的平均场方法由分立的阿贝尔群情况推广至非阿贝尔连续群情况;计算了SU(2)Yang-Mills场和Higgs场耦合系统的相图.
- It is proved that the tilted axis cranking (TAC) model is equivalence to the particle rotor model (PRM) under the semi-classical and mean field approximations. 阐述了剪刀带的形成机制,并论证了在半经典近似和平均场近似下,倾斜轴推转模型与粒子转子模型等价。讨论了原子核在有三轴形变时出现的一种全新的磁转动现象-手征双重带。
- This paper deals with the basic theory of the natural electric field method and its application to the prospecting for interlayer oxidation zone sandstone-type uranium deposits. 摘要介绍了自然电场形成的原理及在寻找层间氧化带砂岩型铀矿中的应用。
- Critical phenomena in laser system, in which optical bistability can occur, are studied with concrete examples and described by the mean field theory in detail. 通过实际事例研究了可能出现光学双稳性的激光系统中的临界现象,并且用平均场理论作详细描述。
- This paper is to build mathematic model of aluminum solidification microstructure simulation by the phase field method and study the influence of disturbing on dendrite growth. 对研究铝金属微观组织模拟相场法技术的数学模型及扰动对枝晶生长的影响进行了研究;
- In general, this modified RMF model is an phenomenological theory based on mean field hypnosis,and it generate some numerical value in accordance to experiment results. 改进后的 RMF 理论仍然是一个唯象的 平均场理论,一系列的计算结果都基本接近实验结果。
- By using renormalized mean field theory we study charge ordered d-wave resonating valence bond states (dRVB) in doped cuprates, and estimate their energies in the $t-J $ model. 长程库仑作用势使电荷趋向密度分布不均匀,而动能项则喜欢均匀分布的电荷,这两项 的竞争可能会导致稳定的电荷序图案出现。
- Compared with parallel-plate static electric field method of ion extraction, RF resonance method increases the ion flux and shortens the extraction time. 与离子引出方法中传统的平行板电场相比,RF共振法使得引出的离子流加大,离子引出时间显著缩短。
- Except the method of nature electric field,we used DB-3 popular dam seepage detection device of flow field method to reconnoiter around Jiangya dam site. 在对江垭水库大坝物探勘查工作中,除运用了自然电场法等常规查漏方法外,还采用了流场法DB-3普及型堤坝渗漏检测仪进行勘查。
- The ant algorithm is initialized by the planning result of the artificial potential field method as the prior knowledge, which improves the algorithm's efficiency. 把人工势场的路径规划结果作为先验知识,对蚁群算法进行初始化,提高了蚁群算法的优化效率;
- Dendrite growth has been simulated with the phase field method and finite difference schemes on a two dimensional rectangular domain with a uniform square mesh. 相场方法不需要跟踪固液界面,因此在模拟枝晶生长方面有独特的优势。
- The important methods of analysis TMS evoked brain responses include: waveform analysis, spectral analysis, global mean field amplitude (GMFA), minimum-norm estimation (MNE), and so on. TMS诱发电位分析目前使用的主要方法有:直接波形分析、频谱分析、全局平均场幅度(GMFA)方法、最小范数估计(MNE)等。