土壤中微量元素剖面分异因素探讨——兼论黄山地区土壤中铜元素剖面分异的主导因素

本文分析了土壤微量元素剖面分异的因素,并从主成分分析方法的角度出发,探讨了造成黄山地区土壤中铜元素剖面分异的主导因素是成土母质,土壤有机质和≤0.001mm土粒.     

碱性淀粉酶产生菌的诱变选育

本文以现行工业生产α－淀粉酶菌株－枯草芽孢杆菌ＢＦ７６５８为出了菌株，通过复合诱变，反复筛选获得一株能在高碱性条件下生产碱性淀粉酶的菌株Ｍ—１０４     

摩尔吸光系数与惰性电解质的离子强度效应

研究了摩尔吸光系数和支持电解质离子强度之间的关系，可用于测定热力学摩尔吸光系数。     

A Fast Recursive Algorithm for Positive and Inverse in Damped Wave Equation Problems

ＡＦａｓｔＲｅｃｕｒｓｉｖｅＡｌｇｏｒｉｔｈｍｆｏｒＰｏｓｉｔｉｖｅａｎｄＩｎｖｅｒｓｅｉｎＤａｍｐｅｄ　Ｗａｖｅ　Ｅｑｕａｔｉｏｎ　ＰｒｏｂｌｅｍｓＡＦａｓｔＲｅｃｕｒｓｉｖｅＡｌｇｏｒｉｔｈｍｆｏｒＰｏｓｉｔｉｖｅａｎｄＩｎｖｅｒｓｅｉｎＤａｍｐ...     

用VAX11-780计算机研究地质-地球物理区域化变量的变异特性

本文利用计算机研究了地质-地球物理区域化变量的变异特性。由于这类变量的变化具有双重性,即随机性和相关性,不可能用一般解析函数表达。利用研究区域内已有资料点的数据,可以计算出一个相应的变异函数,即实验半变异函数。该变异函数可以用来分析研究区域内各种区域化变量的变异特性。为了扩大实验半变异曲线的适用范围,可用一种理论模型进行模拟。实际应用表明,利用计算机技术,可以比常规的手工方式更迅速、更准确地求得变程a、矿块效应系数C_0及基台值C三个变异特征参数。     

大口径排水管用高性能混凝土渗透性对耐久性能影响

应用ＰＤ法（电位差法）Ｃｌ－离子扩散法测定了混凝土的渗透性，抗冻性，抗硫酸盐侵蚀及碱－集料反应。阐述了大口径排水管用混凝土的渗透性对耐久性能的影响。实验表明：Ｃｌ－离子扩散系数小的混凝土试件，其各项耐久性指标均明显优于Ｃｌ－离子扩散系数大的混凝土试件。因此混凝土渗透性能在混凝土耐久性方面起着非常重要的作用。     

求解量子力学中微扰问题的迭代变分法

把变分法与迭代法结合起来考虑量子力学中的微扰问题。该方法不仅可以求出基态的能量和基态波函数的近似值，也可求得到能量的一、二级的近似值，其至ｎ能能量的近似值。     

Interframe Variation Vector: A Novel Feature for Gait Recognition

Gait representation is an important issue in gait recognition. A simple yet efficient approach, called Interframe Variation Vector (IVV), is proposed. IVV considers the spatio-temporal motion characteristic of gait, and uses the shape variation information between successive frames to represent gait signature.Different from other features, IVV rather than condenses a gait sequence into single image resulting in spatial sequence lost; it records the whole moving process in an IVV sequence. IVV can encode whole essential features of gait and preserve all the movements of limbs. Experimental results show that the proposed gait representation has a promising recognition performance.     

Description of a new species of Armandia (Polychaeta: Opheliidae) from western Kyushu,Japan, with character variations

Armandia amakusaensis sp. nov. (Polychaeta: Opheliidae) is described from an intertidal sandflat in western Kyushu, Japan. The holotype measures 13.14 mm in total body length, and has 32 setigers, with branchiae on setigers 2–31. Eleven pairs of lateral eyes are present on setigers 7–17. The anal funnel opens dorsally, fringed with 11 papillae, its length being slightly shorter than the length of the last three setigers. A long unpaired cirrus originates mid-ventrally from the inside of the anal funnel. Variation in these diagnostic characters is described. The new species is most similar to A. leptocirris (Grube, 1878) and A. intermedia Fauvel, 1902. However, it is distinguished from A. leptocirris in the distribution patterns of the branchiae and the lateral eyes, and from A. intermedia in the distribution pattern of the lateral eyes, the ratio of anal funnel length to total body length, and the number of anal-funnel papillae.     

Partitioning phenotypic variation: genotypic,environmental and residual components from bryozoan skeletal morphology

Using morphometric studies of colonial (clonal) organisms such as Bryozoa grown as replicates in controlled laboratory experiments, phenotypic variation (hard part morphology) can be partitioned into its genotypic and environmental (ecophenotypic) components. The interaction between these, i.e. different genotypic responses to the same environmental change, can also be recognized. Palaeobiological studies are inherently constrained by species concepts based on morphotypes (preserved morphological phenotype). Uncertainties associated with fossil species concepts restrict the deductive resolution potential of fossil taxa in discussions of the broader biological questions of species evolution, ecology, biogeography and phylogeny. The relationship between species-level morphological variation and genetic variation in modern taxa is central to evaluating the viability of fossil morphotypes as biological species. Results from a preliminary study of three genotypes of Electra pilosa L., grown as replicate colonies in tanks comprising different microenvironmental conditions, allow for direct evaluation of morphospecies concepts. Numerical analyses (Cluster Analysis, Principal Component Analysis and Two-way ANOVA) of six morphometric characters demonstrated a strong Genotype control over zooid morphology and limited environmental (Tank) effects with minimal environmental differences among tanks. No significant Genotype by Tank (=environment) interactions were found for any characters. These results demonstrate that it is possible to quantify the extent to which a given trait is plastically expressed in different environments. The strong degree of correlation between morphology and genetics for this species is encouraging for the use of morphotypes as proxies for biological species.