The helical contour motion accuracy of feed drive axes is important for thread milling operations in computer numerical control (CNC) machine tools. However, the dynamics and external disturbances significantly affect results, while perform motions operations. Although existing iterative learning (ILCC) methods can improve accuracy, problems data recording processing on memory usage computation...

in the present study, 2, 4-dichlorophenoxyacetic acid (2, 4-d) was assessed individually for its effectiveness to induce somatic embryogenesis in tea (camellia sinenesis l.). embryonic axes and cotyledons explants were dissected from the seeds. explants were cultured on murashige and skoog (ms) medium containing 0, 1 and 5 mm 2, 4-d alone for embryonic axes and 0, 1 and 5 mm 2, 4-d along with 0...