Controllable growth of dielectric/semiconductor integrated films

Currently, electronic information systems are developing quickly towards further miniaturization and monolithic integration so as to realize smaller volume, higher velocity and lower power consumption. For this purpose, the integration of all sorts of active devices （mainly fabricated by semiconductors） with passive devices （fabricated by functional materials） is particularly important and impendent. Therefore, it is necessary to integrate multifunctional oxide dielectrics possessing electric, magnetic, acoustic, optical and thermal properties characterized by spontaneous polarization with semiconductors bearing the characters of carrier transportation to form artificial structures via deposition of solid films. This kind of integrated films may have two characters, i.e., the all-in-one multifuncUon and modulation of electromagnetic properties by hetero-interface. This makes it possible to realize monolithic integration of detecting, processing, transmission, executing and storing of electronic information. Meanwhile, possible integrated coupling effects will be pursued instead of exploring the limited physical properties of the related materials. In this paper, we put forward a new direction of developing electronic devices with higher performances, and demonstrate some results concerning our recent research on the interface-controllable integrated growth of dielectrics and GaN. Recent progresses of the related research in the world are also reviewed.     

方言接触的影响因素研究

周庄、杨岗虽只有一路之隔，语言却有明显的差别，分属两个不同的方言（片），近年来差距在缩小，究其原因，有地理位置、行政区划、经济状况、文化教育、语言心理、婚姻等条件的影响。     

杂交稻及其三系叶片衰老过程中叶绿体的变化

研究了杂交稻及其三系叶片衰老过程中叶绿体数量和结构的变化。     

二维高精度、高分辨率水平传感器中弹性片簧的设计

对二维高精度、高分辨率水平传感器中弹性片簧结构进行了设计，并对影响水平传感器灵敏度的片簧结构参数，如支持水平平衡板的筋条的长度、宽度进行了研究     

电话警卫系统

电话警卫系统是将先进的单片微型计算机技术应用于日常生活领域的一种新型实用报警、检测、查询计费系统。     

露天矿采场台阶高度与剥岩量的关系探讨

本文从露天矿采场结构出发，探讨了山坡露天矿和深凹露天矿境内剥岩量与台阶高度的关系，结果表明，提高台阶高度可以减少境内的剥岩量，并以来矿东采场为例，分析计算了提高台阶高度减少的剥岩量和取得的经济效益。     

丹皮酚亲水凝胶骨架片的制备及体外释放

以羟丙甲基纤维素(HPMC)为主要载体制备了丹皮酚(PN)的缓释骨架片。在载体中添加不同的释放调节剂,比较了对药物释放的影响;考察了不同黏度的HPMC及其用量对释放的影响;通过对体外释放数据进行零级方程、Higuchi和Peppas方程拟合,探讨了药物的释放机制。结果表明,以微晶纤维素为释放调节剂所制备的骨架片呈现良好的缓释特征,2 h释放31%,6 h释放66%,12 h释放99%。药物释放数据可以用Peppas方程(Q=Ktn)进行很好拟合,并且有0.45n0.89(n=0.6685),提示药物的释放机制为非Fichian扩散,即药物是通过凝胶层扩散和骨架溶蚀控制的释放。     

板式换热器的橡胶密封垫片的制作与使用

本文重点板式换热器的橡胶密封垫片的制造工艺、密封原理和维修、保养及更换等问题进行了论述,以供读者交流学习。