Nitrogen is one of the most important elements that can limit plant growth in forest ecosystems. Studies of nitrogen mineralization, nitrogen saturation and nit
Mongolian pine (Pinus sylvestiris Linnaeus var. mongolica Litvinov) as a valuable conifer tree species has been broadly introduced to the sandy land areas in “
This study was carried out to clarify the fauna of the tribe Archipini, which belongs to the family Tortricidae in North-east China. In the present study, fifty
The paper presents a method of using single neuron adaptive PID control for adjusting system or servo system to implement timber drying process control, which c