Things we said today: A linguistic analysis of the Beatles.

The musical group the Beatles had a profound impact on Western culture during their time together between 1960 and 1970. The three songwriters, John Lennon, Paul McCartney, and George Harrison, together and separately evolved in their lyrical styles over time. Using a new generation of computer text analyses, the Beatles' lyrics were analyzed to address how the group changed as a unit over time, how the various members changed in their writing styles, and the overlap in lyrical styles from one composer to the next. Overall, the Beatles' lyrics became darker, more psychologically distant, and less immediate over time. Paul McCartney's lyrical style proved to be more variable and broad ranging than either Lennon or Harrison. Using latent semantic analyses, Harrison's lyrics were more influenced by Lennon than by McCartney. Finally, the lyrics jointly written by Lennon and McCartney were mathematically more similar to Lennon's linguistic styles than McCartney's. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

纺织品设计专业教学中学生发散思维培养

发散思维是一种创造性思维，常用于技术开发和产品设计。本文结合专业教学特点，从三个方面探讨如何训练纺织品设计专业学生的发散思维能力和如何运用发散思维。     

CHARACTERIZATION OF THE FLUE GAS OF A COAL-FIRED POWER PLANT BY ULTRAVIOLET-VISIBLE SPECTROSCOPY AND A TAGAKI-SUGENO MODEL

Quantitative analysis of flue gas of thermal power plant is of great significance for environmental protection. This article reports the characterization of the flue gas of a coal-fired power plant by ultraviolet-visible spectroscopy and a Tagaki-Sugeno model consisting of a series of fuzzy rules. The wavelength signals are expressed by linguistic terms in the rule antecedent. The component concentration is a linear combination of the wavelength signals. Real spectral data obtained from the flue gas is adopted in the model. Prediction models for sulfur dioxide, nitric oxide, and nitrogen dioxide were built with the Tagaki-Sugeno model, back-propagation neural network, least squares support vector machine, and partial least squares. The effectiveness of the models was primarily evaluated by root-mean-squared error of prediction. The experimental results verified that the predictive capability of the Tagaki-Sugeno model was the highest.     

在大幅面激光加工中获得稳定高质量聚焦的方法

从理论上分析和讨论了在大型激光加工系统中,导光距离对激光束聚焦性能的影响,描述了当前代表国际先进水平的多种提高和控制激光束聚焦性能的方法。     

焦点刀口法测量巨脉冲激光的光束发散角

本文介绍了焦点刀口法测量光束发散角的原理,并且实际测出了BBO晶体腔内倍频的灯泵Cr:LiSAF巨脉冲激光器的输出光束的远场发散角。     

微角锥棱镜阵列回归反射器衍射特性

本文利用角锥棱镜阵列单元有效反射面积的反演投影法,计算了两种角锥棱镜阵列回归反射器的衍射特性。具体计算了不同观测角、不同单元惊讶下角锥棱镜阵列的光强反射率,指出这种角锥棱镜阵列回归反射器在衍射特性上的差异,为其制作和选用提供了一定的参考数据。     

气液两相流流经突缩再突扩管道的压力降研究

突缩再突扩管道并非突缩和突扩接头的简单叠加。试验发现：当突缩、突扩接头的距离一定时，管道压力降与两相流干度和气体流量有关，文中由此得出了相应的计算式。     

防雷接地电阻测量套用欧姆定律的分析

防雷接地电阻测量套用欧姆定律,测出电阻值的结果是某个方向接地电阻的近似值。给出了套用欧姆定律测试的误差和减小测试误差的办法。将电压辅助极安置在电位散度零区,可减少测试误差,使测量结果更符合真值。     

基于KL散度的含储能机组组合分布鲁棒优化方法

为应对风电场出力的波动性和随机性给机组组合带来的问题,提出了基于Kullback-Leibler(KL)散度的含储能机组组合的两阶段分布鲁棒优化模型。在电池储能的运行模型的基础,将电池储能模型嵌入到传统的火电机组组合模型中,建立了含储能的机组组合两阶段优化模型;基于KL散度构建了风电场出力的模糊集,形成了含储能机组组合的两阶段分布鲁棒优化模型,通过对偶变换和广义Benders分解将其转化成易于求解的混合整数凸优化模型进行求解。通过IEEE RTS 24节点系统仿真结果表明,所提出的分布鲁棒优化方法保守性优于鲁棒优化方法,经济性接近随机优化方法,且随着KL散度增大,机组组合成本缓慢增加。     

Linguistic and Conceptual Influences on Adjective Acquisition in 24- and 36-Month-Olds.

Two hundred forty English-speaking toddlers (24- and 36-month-olds) heard novel adjectives applied to familiar objects (Experiment 1) and novel objects (Experiment 2). Children were successful in mapping adjectives to target properties only when information provided by the noun, in conjunction with participants' knowledge of the objects, provided coherent category information: when basic-level nouns or superordinate-level nouns were used with familiar objects, when novel basic-level nouns were used with novel objects, and-for 36-month-olds-when the nouns were underspecified with respect to category (thing or one) but participants could nonetheless infer a category from pragmatic and conceptual knowledge. These results provide evidence concerning how nouns influence adjective learning, and they support the notion that toddlers consider pragmatic factors when learning new words. (PsycINFO Database Record (c) 2010 APA, all rights reserved)