IX的4d~75p组态的能级计算

根据文献[1]描述的方法,外推文献[2～8]中 PdⅢ～TeⅨ的实验数据,得到了ⅠⅩ 4d~75p 组态的各 Slater 参数和弱组态相互作用参数。用这些参数计算了9次电离碘离子4d~75p 组态的能级和谱项分量.     

金属磷酸铝分子筛进展

在磷酸铝系列分子筛(AlPO_4-n)基础上,将12种金属元素引入AlPO_4的骨架后,发现了新一代微孔结晶分子筛氧化物——MeAPO和MeAPSO,金属元素包括Li,Be,Mg,Zn,Mn,Fe,Co,Ga,Ge,Ti,V和Mo,骨架金属以1价到6价的阳离子形式存在.这些新物质有24种以上的结构和200种以上的化学组成,包括6种骨架阳离子结合的多元骨架.微孔大小0.3nm～0.8mm.这些新分子筛是由向磷酸铝胶体中添加金属元素和有机模板剂的水热晶化法合成的.     

An analogue of Euler''s identity and new combinatorial properties of n-colour compositions

An analogue of Euler's partition identity: “The number of partitions of a positive integer ν into odd parts equals the number of its partitions into distinct parts” is obtained for ordered partitions. The ideas developed are then used in obtaining several new combinatorial properties of the n-colour compositions introduced recently by the author.     

Application of the thermal analysis for detection of the resinoid bond influence on quality of the compositions

The hardening process of bond compositions is very important technological operation from the point of view of quality and reliability of high-voltage insulation systems. The thermal analysis TMA, DTMA and DTA were used and compared for detection of the bond compositions.     

Longest run of equal parts in a random integer composition

This paper examines a problem in enumerative and asymptotic combinatorics involving the classical structure of integer compositions. What is sought is an analysis on average and in distribution of the length of the longest run of consecutive equal parts in a composition of size n$n$. The problem was posed by Herbert Wilf at the Analysis of Algorithms conference in July 2009 (see arXiv:0906.5196).     

A fully stochastic approach to limit theorems for iterates of Bernstein operators

This paper presents a stochastic approach to theorems concerning the behavior of iterations of the Bernstein operator $B_n$ taking a continuous function $f\in C[0,1]$ to a degree-$n$ polynomial when the number of iterations $k$ tends to infinity and $n$ is kept fixed or when $n$ tends to infinity as well. In the first instance, the underlying stochastic process is the so-called Wright–Fisher model, whereas, in the second instance, the underlying stochastic process is the Wright–Fisher diffusion. Both processes are probably the most basic ones in mathematical genetics. By using Markov chain theory and stochastic compositions, we explain probabilistically a theorem due to Kelisky and Rivlin, and by using stochastic calculus we compute a formula for the application of $B_n$ a number of times $k=k\left(n\right)$ to a polynomial $f$ when $k\left(n\right)∕n$ tends to a constant.     

梯黑铝熔注装药防止铝粉沉降的技术措施

该文通过理论分析，认为影响梯黑铝熔注装药铝粉沉降的主要因素是药浆粘度。适当提高药浆粘度可明显降低销粉的沉降速度，最终达到装药组分分布较均匀的目的。实验证实，对TNT／RDX／Al粉=60／24/16的熔注炸药，仅将工业RDX粉碎，采用过180目筛者就能取得较好效果；如果采用过200目筛的RDX和过180目筛的Al粉，效果史佳．同时证实，采取上述技术措施的同时，必须辅以适当的护理，才能确保不影响装药的整体质量。     

郯庐断裂带中段幔源岩包体中的流体组成特征

对沂沭地区幔源包体单矿物的分步和一步加热释气实验表明研究区幔源包体源于乏硫环境；断裂带内同一包体中橄榄石与辉石的流体组成总是反映变化的氧逸度，可能与该区多期次的拉张、挤压构造运动有关；分步与一步加热中的流体组成反映了不同的地幔信息。