"Network interference and number-fact retrieval: Evidence from children's alphaplication": Erratum.

Reports an error in "Network interference and number-fact retrieval: Evidence from children's alphaplication" by D. Jeffrey Graham and Jamie I. Campbell (Canadian Journal of Psychology Revue Canadienne de Psychologie, 1992[Mar], Vol 46[1], 65-91). Figure 1 was inadvertently omitted. Reprints of this article, available from the authors, will include this figure. (The following abstract of the original article appeared in record 1992-42555-001.) Investigated the origins of several phenomena of number-fact retrieval by asking 45 children (aged 8 yrs 2 mo to 10 yrs 7 mo) to memorize alphaplication facts (arithmetic-like memory items composed of letters instead of numbers). Ss' performance in the task showed paralleled aspects of simple arithmetic performance. There was a strong performance advantage for tie over nontie problems on both reaction time (RT) and errors. Specific errors frequently involved operand-related answers. Correct RTs and error rates across problems were closely linked. Correct answers to poorly learned problems tended to be the most common error responses. Performance was not as good for problems that were introduced later in the learning sequence. Results support the network-interference approach to number-fact retrieval of J. I. Campbell and D. J. Graham (see record 1986-16912-001). (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

CO2激光辐照下光学薄膜的温度场与热畸变

介绍了光学薄膜温度场的基本理论,利用交替隐型技术,对10.6μm激光辐照下介质薄膜的温度场分布进行了数值模拟和理论分析。在此基础上,利用夏克-哈特曼波前传感器对介质基底样品、不同厚度的介质单层膜样品以及不同膜系的YbF3/ZnSe介质多层膜样品在10.6μmCO2激光辐照下的热畸变进行了实验研究。研究结果表明,激光辐照下光学薄膜样品的温度场分布与辐照激光的光场分布、激光功率以及激光的辐照时间等因素有关。对于10.6μm激光而言,Ge最适宜做基底材料。     

Luminescence properties of Eu-activated Ca12Al10.6Si3.4O32Cl5.4: A promising phosphor for solid state lighting

In this article, we synthesized and characterized a novel bluish green phosphor for white light-emitting diodes, Eu²⁺-activated Ca₁₂Al_10.6Si_3.4O₃₂Cl_5.4. The phosphor shows broad and strong absorption in the region (320-450 nm), which is essential for improving the efficiency and quality of white light-emitting diodes. When excited at 380 nm, the phosphor shows two emission bands at around 425 and 500 nm. The main emission peak of Eu²⁺-activated Ca₁₂Al_10.6Si_3.4O₃₂Cl_5.4 exhibits red shift in comparison with that of Eu²⁺-activated Ca₁₂Al₁₄O₃₃, which is due to the introduction of Si and Cl ions. The results show Ca₁₂Al_10.6Si_3.4O₃₂Cl_5.4 is a promising host candidate for the phosphors.     

激光大气传输衰减的估算方法

在对影响激光大气传输衰减的主要因素进行分析的基础上,从分子和气溶胶衰减、雾的衰减、雨的衰减和雪的衰减等方面,深入研究了1.06μm和10.6μm激光的大气传输衰减的估算模型,并利用Matlab仿真软件分别对其进行了比较分析;最后对激光大气传输衰减的斜程修正问题进行了论述。     

陶瓷微珠包覆铜的制备及激光光谱特性研究

采用化学镀方法制备了陶瓷微珠包覆铜复合材料,通过SEM、XRD和EDS研究了还原剂浓度对陶瓷微珠包覆铜的形貌及包覆情况的影响,得出了最佳包覆条件。采用近红外分光光度计、CO2激光器和激光能量计检测了不同硫酸铜浓度下陶瓷微珠包覆铜在1.06μm附近的光谱反射率和10.6μm的激光反射率,随硫酸铜浓度的增大,1.06μm附近的光谱反射率和10.6μm的激光反射率下降。     

红磷烟幕对10.6 μm激光的消光系数测试研究

论述了红磷烟幕的成烟过程与遮蔽特性。在烟幕试验柜中测试了红磷烟幕对两种入射功率10．6μm激光的质量消光系数和红磷烟幕的粒度分布规律;根据米氏散射理论计算了单个红磷烟幕粒子对10．6μm激光的吸收效率因子、散射效率因子和消光效率因子。结果表明：红磷烟幕对入射功率分别为0．552、1．032W的10．6μm激光的平均质量消光系数分别为0．6027、0．5739m^2／g。成烟5min时红磷烟幕粒子的平均直径为2．47μm。研究表明,红磷烟幕对10．6μm激光的消光作用以吸收效应为主,其质量消光系数随浓度的增加而下降。同等条件下入射光的功率越大或空气的相对湿度越小．则红磷烟幕的消光系数就越小。