Developing a coordination chemistry of intact quantum dots: the preparation of novel nanocomposites of PbS with CdS or CdSe

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A Comparative Study on the Abstractness Presented in Chun Xiao and its Four Translated Versions

This paper sets out to discuss the abstractness created by Meng Haoran in Chun Xiao and its reproduction in four translated versions by four different translators. Through the analysis in three functions of abstractness, namely, to reach accuracy, create ideorealms and to induce association, it is found that the four versions tend to two ways of translation: one is to reproduce abstractness; the other is to make abstractness concrete. The two ways are both adequate in its adaptation to different readers. Key words: abstractness, Chun Xiao, accuracy, ideorealms, association Résumé: L’article présent analyse l’expression de la beauté suggestive dans le poème L’Aube du printemps et sa représentation dans ses quatre traductions. L’article examine les traductions dans les perpectives des trois fonctions de la beauté suggestive : précision de l’expression, création de l’ambiance et suggestion. Il en résulte qu’il y a deux tendance de traduction quant à la beauté suggestive, à savoir la traduction équivalente et la traduction diminutive. Chacune de ces deux techniques de traitement a ses qualités face aux différents lecteurs, ainsi ne peut-on pas juger aveuglement les mérites et les défauts des traductions. Mots-clés: beauté suggestive, L’Aube du printemps, précision, ambiance, suggestion 摘要：本文討論和分析了朦朧美在唐詩《春曉》中的表現及其四個不同譯文中的再現。通過朦朧美的作用在三個方面的表現，即表達精確、營造意境和引發聯想對譯文進行考察，得出兩種翻譯趨向，即對原文朦朧美的等化處理和淺化處理。這兩種不同的處理方法，針對不同的讀者群，各有千秋，因此不能盲目片面比較譯文的優劣。關鍵詞：朦朧美；《春曉》；精確；意境；聯

Trees with the most subtrees -- an algorithmic approach

When considering the number of subtrees of trees, the extremal structures which maximize this number among binary trees and trees with a given maximum degree lead to some interesting facts that correlate to other graphical indices in applications. The number of subtrees in the extremal cases constitute sequences which are of interest to number theorists. The structures which maximize or minimize the number of subtrees among general trees, binary trees and trees with a given maximum degree have been identified previously. Most recently, results of this nature are generalized to trees with a given degree sequence. In this note, we characterize the trees which maximize the number of subtrees among trees of a given order and degree sequence. Instead of using theoretical arguments, we take an algorithmic approach that explicitly describes the process of achieving an extremal tree from any random tree. The result also leads to some interesting questions and provides insight on finding the trees close to extremal and their numbers of subtrees.Comment: 12 pages, 7 figures; Journal of combinatorics, 201

Synthesis of PbS nanocrystallites using a novel single molecule precursors approach: X-ray single-crystal structure of Pb(S2CNEtPri)2

The synthesis and characterisation of some lead(II) dithiocarbamato complexes Pb(S2CNRR¾)2 is reported. These compounds were used as single molecule precursors to produce nanocrystalline PbS by their thermolysis in trioctylphosphine oxide. The optical and morphological properties of the resulting PbS nanocrystallites were investigated; the influence of experimental parameters, such as precursor, growth time and temperature, on the final nanodispersed materials is also reported

Algebraic Cayley Graphs over Finite Fields

A new algebraic Cayley graph is constructed using finite fields. Its connectedness and diameter bound are studied via Weil's estimate for character sums. These graphs provide a new source of expander graphs, extending classical results of Chung

Bis(isocyanato-κN)bis­(1,10-phenanthroline-κ2 N,N′)cobalt(II)

In the title complex, [Co(NCO)2(C12H8N2)2], the CoII atom, lying on a twofold rotation axis, is coordinated in a distorted octa­hedral environment by four N atoms from two chelating phenanthroline ligands and two N atoms from two isocyanate ligands in cis positions