Advances in the application of infrared spectroscopy in the rapid and non-destructive characterization of rapeseeds Testing Damage Process of David Poplar under the Dynamic Loads Based on Acoustic Emission Technique Effects of Tangential Angles on Stress Wave Propagation Velocities in Log‘s Cross Sections Research on the Dynamic Modulus of Elasticity Measurement of Lumber Relationships between Tomato Maturity and Dielectric Parameters A STUDY ON IMAGE PROCESSING SYSTEM OF NON-DESTRUCTIVE LOG DETECTION Research Progress on Application of Hyperspectral Imaging Techniques in Tea Science In situ investigation to three dimensional structures of Chinese medicines seeds Establishment of simultaneous quantitative model of five alkaloids from Corydalis Rhizoma by near-infrared spectrometry