不完全三值逻辑在语言表达上的相互比较

深入讨论各种命题联结词含量不完全的三值逻辑的语言表达的能力,完全弄明白了三值系统L3,L3,B3,B3,K3,K3,MP的语言表达能力的等效或不等效关系,特别应当指出的一个结论是：中介命题逻辑MP作为一种命题联结词含量不完全的三值系统而言,它和其他命题联结含量不完全的三值逻辑L3,L3Δ,B3,B3Δ,K3,K3Δ的语言表达能力都不等效,从而也由此体现出MP的一种自身特色。     

用于积分方程解的广义逆函数值Padé逼近的计算公式

首次建立了广义逆函数值Pad啨逼近的完整的计算公式:函数值分子多项式和数量分母多项式的行列式公式。一个有用的存在条件借助于行列式形式得以给出。     

固体废弃物处理的岩土工程问题

系统地介绍了与固体废弃物填埋处理有关的岩土工程问题, 包括地质灾害的勘察、预防和治理, 似土废弃物和非土废弃物性能的测试研究, 填埋场和填埋体的稳定和变形分析, 填埋场的渗漏和污染物运移的规律, 粘土和筑坝建材的调查等。     

液态金属Ni3Al凝固过程中结构转变的分子动力学模拟

采用分子动力学模拟方法对液态Ni3Al凝固过程进行了研究,考察了不同冷却速度下液态Ni3Al结构变化特点,原子间相互作用势采用F－S多体势,结构分析采用键取向序和对分析技术,计算结果表明,冷却速度对液态Ni3Al结构转变有重要影响,给出了不同冷却速度下液态Ni3Al结构转变的微观信息。     

铒掺杂富硅热氧化SiO2/Si发光薄膜的显微结构

利用金属蒸气真空弧 (MEVVA)离子源将稀土元素Er离子掺杂到富硅热氧化SiO2 /Si薄膜中。卢瑟福背散射 (RBS)和X 射线电子能谱仪 (XPS)分析表明 ,Er浓度可达原子百分数 (x)～ 10 ,即Er的原子体浓度为～ 10 2 1·cm-3 。XPS研究发现 ,随着Si注量增大 ,退火态样品表面硅含量增多 ,热氧化硅含量减少。反射式高能电子衍射 (RHEED)和原子灵敏度因子法 (AFM)研究表明 ,样品表面没有大量Er析出或铒硅化物形成 ,退火后表层中Si外延再生长、有针状微晶硅颗粒形成。在 77K及室温下 ,研究了Er掺杂富硅热氧化SiO2 /Si薄膜的近红外区 1 5 4μm附近光致发光光谱     

乙酸对DNA空间结构微观损伤的Raman光谱特征

利用Raman光谱技术从分子水平研究了乙酸对鲱鱼精DNA空间结构微观损伤的特征。实验结果表明,鲱鱼精DNA被乙酸浸润处理后,Raman特征频率与强度均发生了不同程度的变化。证明了乙酸对DNA的损伤是整个分子,包括骨架磷酸基团、脱氧核糖及碱基。不仅是DNA的构象,而且其构型也发生了变化：氢键断裂,B型构象被修改,DNA单、双链断裂,碱基也受到了严重损伤。其碱基损伤严重程度依次为胞嘧啶、胸腺嘧啶、鸟嘌呤和腺膘呤。     

大口径光学元件检测中的主要误差及其影响

 使用PSD作为大口径光学元件的质量评价标准,标定了测试系统的传递函数,并讨论了在对ICF驱动器中所使用的光学元件进行检测时产生的几种主要误差,分析了这些误差在进行计算和分析时可能造成的影响以及消除的方法。     

Microwave-assisted Catalyzed Synthesis and In vitro Bioactivity Evaluation of Benzimidazoles Bearing Phenolic Hydroxyl

An efficient and facile method was introduced for the synthesis of benzimidazoles in this paper. The optimum reaction conditions were determined. A series of benzimidazoles bearing phenolic hydroxyl(2a-2t) were synthesized in moderate to excellent yields starting from differently substituted hydroxyl benzaldehyde and 4-position substituted o-phenylenediamine via nucleophilic addition in the presence of catalyst Na₂S₂O₅ under microwave irradiation condition. Herein, effects of the catalyst, molar ratio of reactants, reaction temperature and solvent were investigated. The optimal reaction condition was determined. The effect of DMF and EtOH solvent on the reaction was compared. The synthesized compounds were characterized by FTIR, HRMS, ¹H NMR and ¹³C NMR spectroscopy. Further, the bacteriostatic activities of the synthesized compounds were evaluated with ciprofloxacin and itraconazole as a positive control, respectively. Compounds 2b, 2n, 2q and 2r exhi-bited some antibacterial activity. The lowest MIC of antibacterial activity of compound 2b was 32 μg/mL. Meanwhile, the luminescence property of compound 2b was studied. The antibacterial activity of compound 2b, along with their good fluorescence performance highlighted the potential of these compounds as lead structures and owned fluorescence trace for further study towards the development of novel drugs and functional mechanisms in living organisms.     

可用至3.5 V的碳纳米管阵列超级电容器

应用化学气相沉积在钽片和不锈钢片表面直接生长碳纳米管阵列(CNTA)制备超级电容器电极,并分别作正、负极组装有机体系扣式电容器.扫描电子显微镜、循环伏安、恒电流充放电和交流阻抗表征、测试材料的微观形貌和电化学性能.结果表明,该电容器可获得高达3.5 V的工作电压,较长的循环寿命,较好的倍率性能.基于CNTA质量的比功率和比能量性能分别为928 kW.kg-1和19 Wh.kg-1.     

Syntheses,Structures and Catalytic Properties of Two Mn(Ⅱ) and Cd(Ⅱ) Coordination Polymers through in Situ Ligand Reaction

Two coordination polymers, namely [Mn(μ-Hcpia)(bipy)(H_2O)_2]_n(1) and [Cd_3(μ_3-Hcpia)_2(μ-Hbiim)_2(μ-H_2biim)(H_2O)_2]_n(2), have been constructed hydrothermally using H_2cbia(H_2cbia = 5-(4'-cyanobenzoxy)isophthalic acid), bipy(bipy = 4,4'-bipyridine), H_2biim(H_2biim = 2,2'-biimidazole), and manganese or cadmium chlorides at 160℃. Interestingly, the H_3cpia(H_3cpia = 5-(4'-carboxylphenoxy)isophthalic acid) ligand was generated by in situ hydrolysis of cyano group in H_2cbia. The products were isolated as stable crystalline solids and were characterized by IR spectra, elemental analyses, thermogravimetric analyses(TGA), and single-crystal X-ray diffraction analyses. Both compounds crystallize in the triclinic system, space group P1. Compound 1 discloses a 1D linear chain of the 2C1 topological type. Adjacent chains are assembled into a 2D supramolecular sheet through O–H···O/N hydrogen bonds. Compound 2 features a 3D framework with a 3,4,4 T25 topology. The luminescent and catalytic properties of two compounds were investigated. Compound 1 exhibits a superior catalytic activity in the cyanosilylation at room temperature.