SPR免疫竞争法研究小分子吗啡与其抗体间作用的动力学特征

表面等离子体共振技术(SPR)主要应用于生物大分子相互作用的研究,本文采用溶液竞争法,测定了小分子吗啡与其抗体作用的结合常数K₁,并计算了吗啡抗体与吗啡化牛血清白蛋白的结合常数K₂.证明了多抗对抗原的亲和力较单抗大,并表明大分子蛋白质的存在对抗体与待测物的结合有阻碍作用.     

单分散纳米Ni(OH)2的制备及其电化学性能

表面活性剂;单分散纳米Ni(OH)2的制备及其电化学性能     

半化学法制备0.5Pb(Mg1/2W1/2)O3-0.5PbTiO3粉体的反应机理探讨

半化学法制备0.5Pb(Mg1/2W1/2)O3-0.5PbTiO3粉体的反应机理探讨;钨镁酸铅;钙钛矿相;半化学法;反应机理     

纳米Bi-Ni氧化物改性碱性MnO2电极

电化学行为;纳米Bi-Ni氧化物改性碱性MnO2电极     

Opto-thermal Moisture Content and Moisture Depth Profile Measurements in Organic Materials

Opto-thermal transient emission radiometry(OTTER) is a infrared remote sensing technique, which has been successfully used in in vivo skin moisture content and skin moisture depth profiling measurements. In present paper, we extend this moisture content measurement capability to analyze the moisture content of fruit (tomato. grape, etc. ) skins, and to study the relationship between fruits ripening process and their sur-face moisture and moisture depth profiles.     

Surface Characterisation of Silicon Based MEMS

Polysilicon Microelectromechanical systems (MEMS) are the subject of intensive researches. Surface chemistry and topography of a MEMS test structure fabricated at Sandia National Laboratory, USA, were studied by means of scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and atom-ic force microscopy(AFM). XPS C1, and Si2p spectra from the polysilicon components, silicon nitride sub-strate and a reference silicon wafer were compared. The results confirm the presence of a self-assembled monolayer (SAM) on the MEMS surface. An island-like morphology was found on both polysilicon and sili-con nitride surfaces of the MEMS. The islands take the form of caps, being up to 0. 5 μm in diameter and 20 nm in height. It is concluded that the co-existence of columnar growth and equiaxed growth during the low pressure chemical vapor deposition(LPCVD) of these layers leads to the observed morphology and the is-lands are caps to the columnar structures.     

稀水溶液中聚乙烯吡咯烷酮构象行为的荧光研究

以苊烯(ACE)为荧光标记物,8-苯胺基-萘磺酸(ANS)为荧光探针,利用荧光各向异性、荧光猝灭以及非辐射能量转移等静态荧光技术研究了聚乙烯吡咯烷酮(PVP)在稀水溶液中的构象行为.结果表明,PVP在稀水溶液中呈松散自由线团构象,这种构象不随溶液pH的变化而显著变化.不同于其它水溶性高分子,PVP有很强的氢键形成能力,易与具有活泼氢的其它高分子或小分子相结合,并易被金属氧化物类吸附剂吸附.因此PVP可被用来修饰某些具有疏水结构的水溶性高分子.PVP水溶液在pH=7以上相当稳定,放置1周性质没有显著变化.     

一种无计有机聚合物中间体——六(甲基丙烯酸羟乙酯)三聚膦腈的合成

六氯三聚膦腈;一种无计有机聚合物中间体——六(甲基丙烯酸羟乙酯)三聚膦腈的合成     

组合导航系统卡尔曼滤波衰减因子自适应估计算法研究

提出了一种衰减记忆卡尔曼滤波中衰减因子的自适应估计方法,并在GPS／SINS组合导航系统中进行了计算仿真。仿真结果表明：该算法能够较好地估计出衰减因子的大小,有效地抑制滤波发散,提高导航精度。     

Sobolev-Volterra投影与积分微分方程有限元数值分析

本文提出一类称之为Sobolev-Volterra投影的有限元投影,研究了有关性质并将之应用于伪抛物型积分微分方程有限元方法、伪双曲型积分微分方程有限元方法以及三维伪双曲型积分微分方程交替方向有限元方法的数值分析.