N-p-Hydroxybenzoyl-N′-aryl-ureas(Ⅶ) were prepared in CH 2Cl 2 or DMF using oxalyl chloride as traceless linker and poly(ethylene glycol) as soluble polymer support with yields of 65%～77%.

Study and realization of seamless link between FEM software and universal graphics software;

Seamless Link of Visual Basic 6.0 and PowerPoint XP;

The thesis describes the development of CAE Technology , the system structure of PDM and the implement method of seamless Link about CAE and PDM.

Research and implementation on technology of multi-DSP seamless connection with HPI interface;

The system,connected with substation and monitoring center by Internet,doesn t need special communication,reduced system costs and realized seamless connection between sub-systems.

The seamless connection between Lotus Notes and Microsoft Excel is discussed in the paper and the method of accomplishment is proposed.

The construction scheme for ZigBee wireless connection based on MC1322x can meet application challenges,such as low power,low cost,small size,high performance,etc.

Research on seamless integration of GIS of water supply network and hydraulic model;

The middle-layer technology can prevent the hydraulic model from inheriting possible data incompleteness and error in the GIS,realize the seamless integration between GIS and the hy.