By studying impermeability and anti\|shear performance of the sludge from wastewater treatment plant with different water content (sludge a with 80 percent and sludge b with 45 percent), this article excludes the possibility of using sludge b as landfill final cover material but presents a proposition of utilizing sludge a.

This article introduces the development of tent products whose two basic cloth are combined yarn fabric and combining-textured yarn fabric made of polyester filament and twisted glass yarn.

This article mainly introduces the development of tent products whose two basic cloth are combined yarn fabric and combining textured yarn fabric made of polyester filament and twisted glass yarn.

Effect of different covering materials on turf establishment;

Thermal measurement system for measuring heat transfer coefficient of greenhouse covering materials based on virtual instrumentation;

Effects of different covering materials on tilth soil temperature and maize emergence

Theoretical analysis using the method of energy equilibrium in covering layer and validation of the overall heat transfer coefficient of greenhouse covering materials;

Research and development of the test apparatus for measuring the overall heat transfer coefficient of greenhouse covering materials;

Review of the hot-box methods for measuring the thermal transmittance of greenhouse covering materials;

Based on nature evaporation experimentation with artificial controlled precipitation, the evaporation and availability of soil water to plant under 50% cover rate conditions with four types of mulch materials, including plastic film, water permeable plastic film, hay and sponge plastic sheet, were studied.