Infrared metaphysics: radiation and theory-choice. Part 2

We continue our discussion of the competing arguments in favour of the unified theory and the pluralistic theory of radiation advanced by three nineteenth-century pioneers: Herschel, Melloni, and Draper. Our narrative is structured by a consideration of the epistemic criteria relevant to theory-choice; the epistemic focus highlights many little-known aspects of this relatively well-known episode. We argue that the acceptance of light-heat unity (and of the unified theory of radiation more generally) in this period cannot be credibly justified on the basis of common evaluative criteria such as simplicity and standard notions of explanatory power. Whether the consensus was justified by some other criteria remains an open question.     

基于分层着色Petri网的装备战场抢修系统建模

讨论了一种基于分层着色Petri网理论建立装备战场抢修系统模型的方法。这种方法是通过引入复杂库所和Petri子网来对原有的装备战场抢修系统模型进行改造，克服了以往用普通Petri网建模的不足之处，使模型变得直观、简单，并有利于模型分析和仿真实现。     

基本财务比率分析

财务分析以企业财务报告及其他相关资料为主要依据，对企业的财务状况和经营成果进行评价和剖析，反映企业在运营过程中的利弊得失和发展趋势，从而为投资者、债权人、经营决策者等相关人员提供重要的财务信息。财务分析是评价财务状况、衡量经营业绩的重要依据；是挖掘潜力、改进工作、实现财务管理目标的重要手段：是合理实施投资决策的重要步骤。     

Analysis of Alignment Influence on 3-D Anthropometric Statistics

Three-dimensional （3-D） surface anthropometry can provide much more useful information for many applications such as ergonomic product design than traditional individual body dimension measurements. However, the traditional definition of the percentile calculation is designed only for 1-D anthropometric data estimates. The same approach cannot be applied directly to 3-D anthropometric statistics otherwise it could lead to misinterpretations. In this paper, the influence of alignment references on 3-D anthropometric statistics is analyzed mathematically, which shows that different alignment reference points （for example, landmarks） for translation alignment could result in different object shapes if 3-D anthropometric data are processed for percentile values based on coordinates and that dimension percentile calculations based on coordinate statistics are incompatible with those traditionally based on individual dimensions.     

Formation of the Yazi Spring Stream and its significance on tectonics-climate on the northern slope of Kunlun Mountains

The sequences of fluvial terraces in the Yazi Spring Stream are signs of the stepwise uplift of the Kunlun Mountains in the northern part of the Tibetan Plateau since the Late Pleistocene. Geomorphic and sedimentary features of the terraces reveal that they have resulted from the phased tectonic uplift and the consequent river incision in the northern plateau. Using the method of Single-aliquot Regenerative-dose （SAR） Protocol and Radiocarbon ^14C dating, the deposit ages of three-grade terraces were obtained, which are 57.5, 12.8 and 5.7 kaBP, respectively. The features and ages of terraces reveal that the incision rate of the stream accelerated at the beginning of the Holocene. The incision rate changed suddenly at 12.8 KaBP, from 0.43±0.07 mm/a to 1.59±0.55 mm/a. This implicates that uplift of the Kunlun Mountains is intensive at the first onset of the Holocene, corresponding to the obvious change of slip-rate on the AItyn Tagh Fault. But its uplift rate is much lower than that of the latter, which suggests that growth of the northern margin of the Tibetan Plateau is stronger than its interior.     

肌肉抑制素基因与RNA干扰的应用前景

本文综述了肌肉抑制素基因的研究进展,以及RNA干扰技术的功能.展望了RNA干扰技术在肌肉抑制素基因中的应用前景.     

哈密顿振幅方程的新的精确解

利用双曲函数法求出了一个新的哈密顿振幅方程ux＋utt＋2σ│u│^2u-εuxt=0的新的精确解。     

微细硅微粉的混酸法纯化条件研究

研究了盐酸一硫酸法对粒度为1-5μm的四川硅微粉的纯化方法.最佳工艺条件为盐酸浓度20％;液固比:盐酸 溶液:硅微粉为1.5:1:硫酸浓度25％:液固比:硫酸:硅微粉为2:1;硫酸浸溶时间为12h.纯化处理后硅微粉中铁 的含量<60μg·g-1.     

文学翻译之"同词异境异意"刍议

翻译过程中的文化差异,两种语言的文体、语体、语境等诸多因素的不同与制约,必然会造成内容、形式、意义等各方面的翻译流失。文章结合当前语言学中的最新前沿学科语用学的相关知识,按照翻译的一般认知规律与过程,初探文学翻译中“同词异境异意”现象,从翻译的语境认知转向探讨文学翻译。     

汞离子胁迫对茭白及其体内黑粉菌的影响

研究了Hg^2＋对茭白（Zizania latifolia Turcz．）体内共生的茭白黑粉菌（Ustilago dctdenta P．Henn．）的影响．对不同浓度Hg^2＋胁迫下茭白黑粉菌在幼茎中的分布状态进行了解剖观察，分析了在此过程中的MDA含量、可溶性蛋白含量、SOD活性和POD活性等一系列指标．试验结果表明，2mg／L以上的Hg^2＋胁迫能导致茭白黑粉菌的消亡，导致茭白茎尖不能膨大．