Z. H. Wei

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
The objective of this study was to investigate the effects of reducing dietary phosphorus (P) on the frame size, udder traits, blood parameters and nutrient digestibility coefficient in 8- to 10-month-old Holstein heifers. Forty-five heifers were divided into 15 blocks according to the mo of age and were randomly assigned one of three dietary treatments:(More)
Virtual assembly (VA) has been widely used in product development, such as assembly analysis, assembly sequence path planning, assembly process simulation, and assembly operation training. There are two main differences between real assembly and virtual assembly simulation: time difference and geometrical difference. Firstly, there is no corresponding(More)
  • 1