With upper bound method and least energy principle, the conditions are established of drawing and breaking workpiece with cross wedge rolling technique to form axial symmetry spare parts. 利用上限原理和最小能量原理,获得了用楔横轧工艺成形阶梯轴类件时杆部拉断的条件。
With the boundary conditions of bound states, we have obtained the corresponding energy spectrum via an expression and wave functions in terms of hypergeometric functions. 并利用束缚态边界条件,获得了束缚态能谱表达式和由超几何函数表示出的波函数。
122. A place which develops as quickly as Hong Kong is bound to be a voracious consumer of energy and of other resources. 122.香港向来发展迅速,所以能源和其他资源的消耗量相当惊人。
Climate change is closely bound up in the whole issue of energy consumption. 气候的变化与整个能源消耗问题密切相关。
In this way, these so-called Cooper pairs of electrons became weakly bound together, and a sea of them could flow through the lattice without losing energy. 这样一来,这种所谓的“库珀电子对”的联系就变得较弱,不计其数的库珀对就可以没有能量损失地流过晶格。
On Graphs Whose Lower Bound for the Energy Depends on the Degree of Vertices 依赖于点的度数的一类图的能量下界
Nevertheless, the environmental pollution and the ecological destruction is bound to follow the rapid development, production in energy. 然而,能源开发建设和生产,伴随的环境污染与生态破坏十分严重;
According to the performance specification of the H ∞ torsional modal observer, a bound of the maximum energy gain between the estimation error and the residual modes is introduced to attenuate the effect of the residual modes. 通过分析H∞扭振模态观测器的性能指标可知,H∞扭振模态观测器引入了一个反映受控模态估计偏差对剩余模态分量的最大能量增益的约束,以抑制剩余模态分量的影响。
The necessary condition has been obtained on forming rolling workpiece surface defect by means of upper bound method and least energy principle. 以此为基础,并借助于上限原理和最小能量原理,获得了楔横轧成形阶梯轴时轧件表面缺陷形成的必要条件。
The effects of the different boundary conditions on the calculated results of the ele-ctronic bound state energy levels in the quantum wells are studied. 文中也讨论了在势阱与势垒边界处的不同衔接条件对量子阱中束缚电子能级计算结果的影响。
It has been found that a bound state of excitation exists around a paramagnetic impurity with its energy level in the energy gap. 证明在磁性杂质附近,可能形成一个束缚态的元激发,其能量位于能隙之中。
The bound state energy levels of monopole pair and of charged MONOPOLE-ELECTRON system& some singular state problems in relativistic quantum mechanics 荷电磁荷-电子等体系的束缚态能级&相对论量子力学中的奇性态问题
When α> 6.2, more reasonable upper bound of the ground state energy than that of strong coupling theory is obtained. We also give the improved results of the average virtu-al phonon number around the electron and the polaron effective mass. 在电子-声子耦合常数α≥6.2时,得到了较强耦合理论更为合理的基态能量上限,以及围绕电子的平均虚声子数和极化子的有效质量。
The bound energy could reduce the changed wavelength; 束缚能的存在要减小峰值波长的改变量;
The other absorption peak is attributed to the transition of bound electrons at the impurity energy level of the BaO semiconductor matrix, and the presence of such an impurity energy level is related to the negative ion vacancies caused by the excess barium in the BaO crystal. 而位于近红外光区的次吸收峰则是由BaO半导体基质中杂质能级的光吸收引起的。杂质能级的产生与超额Ba在BaO晶体中造成的氧缺位有关。
The relativistic Dirac equation in one dimension, for the δ potentia is investigated, the bound state energy level and wave function is calculated. 求解一维相对论粒子的Dirac方程.对一维δ势阱,计算了束缚态能级与波函数;
A new graphic method for the bound energy of a particle in a potential well 一维方势阱中束缚态能级的一个新的图解法
This value significantly exceeds the theoretical limit for strongly bound singlet and triplet excitons, assuming they comprise the lowest energy excited states. 若假定它们处于最低激发态,这个值显然高于强束缚单线态和三线态激子的理论极限值。
And the bound state with the highest energy level in the quantum-dot molecule changes gradually into a quasibound state when the electric field strength increases. 计算量子点分子中束缚能级之间跃迁的振子强度表明,只有成键态和相应的反键态之间跃迁才是允许的。
The Bound State Energy in the Vicinity of a Doped Two-Level Atom in the Field of Polaritons 极化激元场中二能级杂质原子周围的束缚态能级
In this paper, an upper bound of the largest energy caused by disturbance under the perturbation of the plant is given. 本文给出了在对象具有不确定性的情况下,由于干扰引起的最大输出能量的上界。
Forward and backward angle bound of a swing and the fast swing track are presented based on energy analysis. 在能量分析的基础上,给出了一次摆动的前后角度边界和一次摆动时间最短轨迹的解析分析。
For the double δ potential, the transcendental equation for bound state energy levels is given, and the number of bound states is determined. 对一维双δ势阱,给出了束缚态能级所满足的超越方程,并确定了束缚态的数目。
The Electronic Bound States and Energy Spectra of Polaron in Cis  ̄-( CH)_x 顺式聚乙炔单极化子能谱及电子束缚态
Sound method does not correctly bound to sound great waste of energy balance regulation undermine the capacity of vocal organs, so that vocal problems continue to occur, even through surgery or drug treatment it will not cure, but also inevitably frequent recurrence. 发声方法不正确必然会极大地浪费发声能量,破坏发声器官平衡调节的能力,使声带不断地出现毛病,即使通过手术或者药物治疗一时也难以治愈,还难免会频繁地复发。
Then, in order to provide a direction for the research of base management, and in order to provide a reference standard for our proposed base station management algorithms, the upper bound of the energy saving for the network is derived. 随后,为了给基站管理研究提供一个努力的方向,并为所提出的基站管理方案提供一个参照的标准,本文对网络中基站节能的上界进行了推导。
On the other hand, bound waves transfer energy to free waves, and resonant triad interaction will take place. And the phenomenon is important for the designing of structures in coastal zone and anchor chains of ships. 还有,约束波又会把能量传给自由波,从而发生三波共振,而这一现象对海岸建筑物和船舶锚链的设计非常重要。
Solar energy has been the concern of countries around the world for its advantages such as abundance, inexhaustibility, cleanness, reality and most likely to be explored by large scale, and will be bound to become the first choice for the next generation of renewable energy. 太阳能以其含量丰富、取之不尽、最清洁、最现实、最有可能大规模开采利用等优点受到了世界各国的关注,必将成为下一代可再生能源的首选。
However, this operation is bound to bring the change into codebook energy and the property of original codebook. Therefore, the obtained codebook needs to be processed. 当然,如上操作势必带来码本能量的变化以及原始码本性质的变化,所以需要对获得的码本进行处理。
Using the minimizer technology we can find the sharp bound of the energy of the system that we can control the kinetic energy to get the global existence and energy decay for the problem with small initial data. 文章利用最小化算子的相关技术找到系统势能的界限,从而通过控制其与动能的关系,得到小初值问题的全局存在性和能量衰减的性质。