The Reverse Hoelder Classes in Martingale Setting

In martingale setting, it has been shown that Ap weights can be factorized in terms of A1 weights. This factorization benefits many problems very much. ]n this paper, the new class of RH~ plays the same role for RHs, which makes the reverse HOlder inequalities hold with exponent s＞1, that the class A1 does for Ap class. Therefore, the Jones‘ factorization theorem for Ap weights was extended to include some information about the reverse HOlder classes. And it is the most convenient obiect in weight theory indeed.     

干旱条件下两种山黧豆气孔特性及种子ODAP,粗蛋白和淀粉积累的研究

对干旱条件下永寿山黧豆(YS)和定西山黧豆(DX)的气孔特性、光合特性和种子物质的积累进行了研究。结果表明，干旱使两种山黧豆气孔密度(SD)显著升高，同时显著减小气孔开度(SA)，SA在30％以上的气孔所占的比例显著减小，而气孔阻力(r)却显著增加；干旱条件下，两种山黧豆的光合速率(Pn)和蒸腾速率(E)均较正常水分条件下的小，而叶片水平水分利用效率(WUE)却显著上升；干旱使两种山黧豆种子千粒重降低，而种子ODAP，粗蛋白和淀粉含量均有一定程度增加，相比之下，干旱更严重地影响了YS的SD，SA，r，Pn，E以及种子ODAP含量，而更显著地提高DX的WUE和种子粗蛋白、淀粉含量。分析认为，干旱通过影响气孔密度和开度而影响光合速率蒸腾速率和水分利用效率；干旱也增加了气孔阻力，而气孔阻力的增加大幅度地减小了蒸腾速率；光合速率、蒸腾速率和水分利用效率的变化最终影响种子千粒重以及种子ODAP，粗蛋白和淀粉等物质的积累；DX可能较耐旱，水分亏缺对YS的影响较DX大。     

"相率"词义妄释

<孟子@滕文公上>:"相率而为伪者也,恶能治国家?"其中"相率"一词,时贤多释作"彼此带领着".然而,副词"相"在这里并不是"互相"的意义,而是表示动作行为的递相承接.动词"率"更不能释作"率领",而是"循"、"从"之义."相率"即犹今之"相继跟随"、"一个接着一个".     

Syntheses of oxysterol receptors‘(LXRs)ligands

The LXRs‘ and agonist,24S,25-epoxycholesterol 1,was synthesized stereoselectively(100%d.e.)in 56% overall yield from methyl hyodeoxycholanate 4 in 9 steps with des mosterol acetate 11 as the key intermediate and the modified Sharpless asymmetric dihydroxylation as the key step.The LXRα subtype selective agonist 5α,6α,24S,25-diepoxycholesterol 2 and the novel LXRs‘ ligand 5β,6β:24S,25-diepoxycholesterol 3 were also synthesized from 1.     

Quasisymmetric boundary correspondence and Grötzsch problem

Two necessary and sufficient conditions for the validity of the conjectureK ₀(h) =K ₁(h) are given, which are independent of the complex dilatations of extremal quasiconformal mappings, where K₀(h) is the maximal conformal modulus dilatation of the boundary homeomorphismh, K ₁(h) is the maximal dilatation of extremal quasiconformal mappings that agree withh on the boundary. In addition, when the complex dilatation of an extremal quasiconformal mapping is known, the proof of the result simplifies Reich and Chen Jixiu-Chen Zhiguo’s result.     

Dyeing of Cotton Fabric WithReactive Dyes Using Ozonated,Spent Dyebath Water

Textilemanufacturingplantsarerequiredtoremovecolorfromeffluents.Traditionaltreatmentmethodssuchasextendedaerationremoveonlypartofthecolorfromdyehousewastewater.Additionaltreatmentsthatmaybeusedtoremovecoloraftertraditionalbiologicaltreatmentin-.eludechemi…     

异核有机金属配合物［dpeNi］［FcCOSCH_2CO_2］NO_3的合成及性质研究

［ｄｐｅＮｉ］［ＦｃＣＯＳＣＨ_２ＣＯ_２］ＮＯ_３是黄绿色晶体，溶于ＣＨ_２Ｃｌ_２，石油醚等有机溶剂。它可由α—二戊铁基硫代乙酸［ｄｐｅＮｉ］［ＦｃＣＯＳＣＨ_２ＣＯ_２Ｈ］和ｄｐｅＮｉＣｌ_２［Ｐｈ_２ＰＣＨ_２ＣＨ_２·ＰＰｈ_２］ＮｉＣｌ_２及ＴＩＮＯ_３经长时间搅拌生成，ＩＲ谱表明，配合物金属Ｎｉ（Ⅱ）分别和ｄｐｅ中磷，ＦｃＣＯＳＣＨ_２ＣＯ_２Ｈ中硫及羧基中氧结合形成四配位双五员环平面正方形结构。ＣＶ法研究表明Ｎｉ（Ⅱ）氧化态呈多样性变化。     

八面沸石在精细有机合成中的催化作用──Ⅱ脱铝USY上α－蒎烯的甲氧基化反应

本文研究了在液相中用稀盐酸脱铝制得的一系列脱铝ＵＳＹ催化α－蒎烯的甲氧基化反应．考察了催化剂的硅／铝比、反应物配比、溶剂和反应温度等对反应的影响．在脱铝ＵＳＹ上α－蒎烯的甲氧基化反应的主要产物是α－松油甲醚，其次是菠基甲醚、α－小茴香甲醚、柠烯和异松油烯，总醚化产物选择性在６５％以上．     

掺锑α－Fe_2O_3超微粉材料的晶粒生长、微结构与气敏特性

用化学共沉淀法制得掺有一定量锑离子的α－Ｆｅ２Ｏ３，超微粉料．ＴＧ－ＤＴＡ、ＸＲＤ及ＳＥＭ等分析表明，掺锑量（Ｓｂ／Ｆｅ原子比）小于０．２时，材料仍保持α－Ｆｅ２Ｏ３的晶体结构，但其晶化温度随Ｓｂ含量的增加向高温区移动；在低温段纯α－Ｆｅ２Ｏ３的晶粒生长活化能（Ｑ＝１０．３ｋＪ／ｍｏｌ）远小于Ｓｂ／Ｆｅ＝０．１（Ｑ＝３５．３ｋＪ／ｍｏｌ）粉料的活化能；Ｓｂ５＋取代α－Ｆｅ２Ｏ３晶粒中Ｆｅ３＋格位与在４５０℃下长期工作粉料颗粒不易长大，是造成掺锑α－Ｆｅ２Ｏ３元件电阻降低一个多数量级及气敏性能显著改善的主要原因．     

α－FeOOH脱水过程后期的封孔机制

采用Ｇｅｒｍａｎ和Ｍｕｎｉｒ提出的烧结动力学，对文题进行了研究。结果表明，在α－ＦｅＯＯＨ分解成ａ－Ｆｅ２Ｏ３的过程中，随着温度升高，产生的孔洞通过颗粒内部的晶核表面扩散的烧结机制逐渐消失。对于包敷ＳｉＯ２的样品，相应的烧结活化能增加。当焙烧温度太高，会出现颗粒之间彼此烧结，并且未包敷的样品更易烧结。