Based on the analyses of the recent situation and the existing problems of the conveying equipments for constructing single track tunnels with non rail transport, several conceptions and suggestions are proposed for reference in situ.

It is expounded that by adopting the traditional construction methods (such as full face tunnelling method or lower guide-adit method )and allocating national-made machinery may obtain also stable and high-efficient rapid tunnelling speed for construction of railway extra-long single-tracked tunnels.

Taking Chengdu-Suining single line, the semi auto-block sectionof Da-Cheng line as example, with the aid of simulated analysis by computertrain-graph generation software, the paper studies the influences of continu-ally dispatching high-rank passenger trains during busy hours to the throughcapacity of whole section and to the travel speed.

Application of object-oriented method in compiling single-track train diagram;

The unreasonable aspects of the distribution principle of the stations in single-track railway line are pointed out and analyzed,and the specific revising methods are proposed.

Photochemical Bleaching of Poplar CTMP Based on Singlet Oxygen Mechanism;

Light emission of singlet oxygen electrogenerated in alkaline aqueous solutions;

Rate constants of photo-generating singlet oxygen(1O2) by 28 new metallophthal-ocyanines with center metal Zn(Ⅱ), Cu(Ⅱ), Ni(Ⅱ) or Co(Ⅱ) and with 4 kinds of substituted aromaticoxyl groups containing nitrogen were determined in the presence of 2,5-dimethylfuran(DMFU) as the 1O2 quencher by GC.

The static nature of singlet and triplet exciton in polyacetylene and zero-field criterion;

Because the internal quantum efficiency of phosphorescent material based OLEDs can reach 100% theoretically owing to availability of both singlet and triplet excitons,utilization of the phosphorescent material in OLEDs has become one of the major approaches of increasing the OLED efficien.