论珠心算教练师培训的价值取向

珠心算教练师国家职业标准的公布施行,对规范珠心算教学、强化对珠心算教练师培训管理具有重要的现实意义,这是各级珠算协会今后一个时期的一项新的工作任务。为此,如何正确定位和科学把握珠心算     

基于虚拟仪器的网络化光能量测量系统

在通常情况下，为了避免强光源对人员的伤害，对强光源的能量测量，往往必须实现人员撤离，对能量测量装置需要在测量前设定好相关参数，一旦设定后，只有等待这次出光后到下次出光前，再进行修改，且所得到的数据必须手工抄录，不利于存档。有的能量测量装置即便带有相关的软件，但多是单机版本且基本上以实现数据的显示为主，无法实现对数据的灵活采样、及时保存，对满足测量的需求相差甚远。即便是国外产的能量测量设备也存在一些不适合本地要求的功能缺陷。     

间断磁探针阵列诊断数据的振荡模式分析

托卡马克磁探针阵列通常是围绕等离子体均匀布置的完整环形系统。由于受到布置空间的限制，HL-2A装置的磁探针只能组成带空白区域的间断阵列。在分析了HL-lM极向磁场振荡——Mirnov振荡模式的基础上，探索了HL-2A磁探针阵列诊断应注意的问题。     

Defect Structures in 4H-SiC Irradiated with Highly-energetic ^20Ne^4＋ and ^120Xe^26＋ Ions

The study of damage evolution in silicon carbide bombarded with energetic helium ions is important for the use of this material in future fusion reactors. Heavier inert gas atoms like Ne and Xe have similar behavior of diffusion and clustering with helium, and the comparison of damage accumulation behavior between energetic helium and heavier inert gas ions can reveal important aspects of underlying mechanisms. As an extension of our     

Radiative lifetimes of Rydberg states of BeⅠ and BeⅢ

By using the multichannel quantum defect theory(MQDT),we have evaluated the energy levels and lifetimes of 2sns ^3 S1,2snd ^3D(n=3-25)of BeI and 1 sns ^3s1,1snd ^3D(n=3-25)of BeⅢ,These energies and lifetimes that we have calculated not only agree with the recent measurements and theoretical calculation of Ref.4 and Ref.3, but also predict the lifetimes of 66 other highly excited states.     

常规投资项目的外部收益率研究

揭示了常规投资项目外部收益率的实质 ,明确了常规投资项目外部收益率的缺陷 .研究表明 ,在实际工作中 ,不宜用外部收益率替代内部收益率进行常规投资项目的经济性分析评价     

New Compacton-Like and Solitary Pattern-Like Solutions of （2＋1）-Dimensional Generalization of Modified KdV Equation

Recently some （1＋1）-dimensional nonlinear wave equations with linearly dispersive terms were shown to possess compacton-like and solitary pattern-like solutions. In this paper, with the aid of Maple, new solutions of （2＋1）- dimensional generalization of mKdV equation, which is of only linearly dispersive terms, are investigated using three new transformations. As a consequence, it is shown that this （2＋1）-dimensional equation also possesses new compacton-like solutions and solitary pattern-like solutions.     

加工中心本体故障模式的统计研究

本文对加工中心整机及机床本体的故障模式及其分布规律进行研究,分析了产生故障的原因,指出了提高加工中心可靠性的途径.研究表明加工中心机床本体故障率最高,刀库与机械手是其可靠性最薄弱的环节.     

Geodesic Acoustic Mode in Toroidally Axisymmetric Plasmas with Non-Circular Cross Sections

The geodesic acoustic mode （GAM）, first predicted by Winsor, Johnson and Dawson in an attempt to explain some experimentally observed low frequency oscillations in stellarators, is a special electrostatic fluid mode with low mode number and coupled with the so-called geodesic curvature of a toroidally confined plasma. The recent on this mode are due to the close relevance of the stabi- lization of drift turbulence by both the zonal flow and the GAM. Previously, the GAM was illustrated in very simple geometries,