Tm3+掺杂的MFT玻璃蓝色荧光动力学

测量了Tm^3 掺杂的MFT玻璃材料的吸收光谱，J－O计算给出了该材料的光学跃迁强度参数Ωt(t=2,4,6)。测量了355nm激发下该材料的发射光谱，通过测量不同掺杂浓度Tm^3 的^1D2→^3H4和^1G4→^3H6荧光衰减曲线讨论了这两个能级寿命及荧光量子效随浓度的变化关系，计算当Tm^3 浓度的4％时引起^1D2和^1G4荧光猝灭的能量传递效率。指出了^1D2→^3H4的荧光猝灭属于电偶极－电偶极相互作用的能量传递所导致。     

大孔吸附树脂分离提取羟丙腈的研究

本文考察了三种大孔吸附树脂对羟丙腈（HPN）的吸附能力，其中NKA－Ⅱ效果较好，表态吸附容量的82.5mg/mL，甲醇是较适宜的洗脱剂。并用动态实验研究了HPN浓度、流速、盐浓度对NKA－Ⅱ树脂吸附能力的影响，将NKA－Ⅱ树脂直接用于丙烯腈水合反应液中羟丙腈的分离提取，回收率高于90％。     

Red Electroluminescence and Photoluminescence from Novel Binuclear Europium Complex with Squaric Acid Ligand

Organic electroluminescent devices (OELDs) have attracted much attention for several years because of their potential application in large area, multi-colored flat panel displays1-5. The green organic EL display using Alq3 as emitter was commercialized in 19976. However, red-emitting OELD with excellent properties has not been well developed. In order to realize practical full-color OELDs, it is considered very important to develop red and blue emitting materials with excellent propert…     

A Novel Mo—Doped Compound with Graphite—Like Structure：[H3O]2V3O8

1 INTRUDUCTION During the last few years, there has been much effort paid to the synthesis of new transition-metal oxides that might be active hosts for intercalation reactions. Vanadium and molybdenum in higher oxidation states with higher reacting ability tend to form polynuclear, anionic metal-oxygen clusters with an extraordinary variety of the relevant topology and electronic structures[1~3]. The preparation of the corresponding clusters is of special interest for different aspects …     

基于模糊熵的物流园区效益评估及其开发模式选择

对物流园区效益进行科学的定量评估,是合理选择物流园区开发模式的基本前提.基于模糊熵理论,结合专家打分法建立物流园区效益定量评估体系,遴选出影响物流园区发展的六大主要因素并进行权重赋值;通过对江苏省苏南地区20个物流园区效益的实际测算与比较分析,讨论了三种物流园区开发模式及其选择问题.     

Off-diagonal long-range order of the wave function in terms of the alternate molecular bonding geminals

It is shown that in the quantum structural approach to high-Tc superconductivity, the wave function in terms of the alternate molecular bonding geminals possesses off-diagonal long-range order (ODLRO).     

光泽精与钨（Ⅲ）的流动注射－胶束增敏化学发光反应

采用了Jones柱在线还原钨（Ⅵ）为钨（Ⅲ），详细研究了钨（Ⅲ）与光泽精的化学发光反应，加入乳化剂OP能明显提高发光的信噪比，基于此建立了痕量钨的流动注射化学发光分析法。该法线性范围为1×10－6～1×10－2 g·L－1, 检出限为5×10－7 g·L－1 , 相对标准偏差为2.0％（5×10－5 g·L－1, n=11）。文中还探讨了反应机理。     

N巴黎势和可能的p共振态(英文)

通过求解N巴黎光学势的复薛定谔方程,研究了N系统的近阈束缚和共振行为,得到了一个p系统的13P0共振态.发现其能量和宽度与最近BES用Breit Wigner(B W)公式分析J/ψ→γp衰变的实验数据给出的结果相容.讨论了这一结果的含义及进一步研究的建议.     

二价铬或锰取代的硅钨杂多酸异构体的聚苯胺掺杂材料的制备及其热稳定性和荧光性能的表征

预先制备了由二价铬或锰取代的硅钨杂多酸钾盐的α及βi(βi=β1,β2及β3)异构体,然后在室温及无酸的条件下与聚苯胺进行固相掺杂,用红外光谱法、紫外-可见分光光度法、X射线衍射法、差示热重量法及分子荧光光度法对所得的掺杂材料的结构、热稳定性及荧光性能等特性作了表征.