浅谈中学思品课教学中学生创新能力的培养

中学思品课教学要顺应时代要求，担负起培养创新人才的使命。如何培养学生的创新能力呢？（一）培养创新能力的前提是激发学习兴趣；（二）培养创新能力的有效方式是创设问题情境；（三）培养创新能力形式的关键是发散思维能力和提高想象力；（四）培养创新能力的有效途径是形式多样的活动课。     

189Re的两个新能级

建议189W一个新的简单衰变纲图.指定189Re能量为470.4 keV和489.8 keV的2个新能级.改进了先前189Re的能级信息.     

平行玻璃板对105 keV Ar7+离子的导向效应

研究了平行玻璃板对高流强（约80 nA）105 keV Ar7+离子的导向效应, 利用一维位置灵敏探测器测量了不同倾斜角下出射离子的强度及角分布。 实验结果表明, 平行玻璃板对Ar7+离子有导向作用。 与离子在微孔膜中的导向效应不同, 从平行玻璃板出射的Ar离子角分布的FWHM随着倾斜角的改变而改变, 并且出射离子角分布最大值处对应的观察角不等于倾斜角。 The transmission of 105 keV Ar7+ ions with high incident current (about 80 nA) through the gap formed by a paired parallel glass plates was investigated. The intensity and angular distribution of the transmitted ions for various tilt angles were measured using a one dimensional position sensitive detector. The results indicate the existence of a guiding effect when Ar7+ ions pass through the gap, but it is different from that for ions passing through nonacapillaries. We found a measurable dependence of the full width at half maximum (FWHM) of the transmitted ions as a function of the tilt angle. In addition, when the gap was tilted with respect to the direction of the incident beam, the observation angle related to the center of the transmitted ions profile was not equal to the tilt angle.