The aim is to study the immune function effect of two polysaccharides extracted from traditional Chinese herbs on rats. Ultrasonic-assisted extraction was used to extract the polysaccharide from traditional Chinese medicines. MTT assay was used to determine the effects of two polysaccharides on the conversion of pig peripheral T lymphocytes. For this, 24 Sprague–Dawley rats were selected for the clinical trial and divided into groups B (blank), CK (cyclophosphamide inhibitory control), AP (angelica polysaccharide), and RIP (radix isatidis polysaccharide). Except for group B, other groups can induce the immunodeficiency by using cyclophosphamide. Rats of the AP and RIP groups were given gavage of 1 mL of AP and RIP. The blood was sampled from the eyeball on days 0, 7, 14, 21, 28, and 35, respectively, to determine immune cells, IgG and IgM of immunoglobulin, body weight, and spleen index.Results: The average content of AP and RIP was 51.27 and 14.8%, and the extraction rate was 75.23 and 60.94%. The maximum stimulation index was 1.407 when the concentration of AP was 8,000 μg mL−1 and 1.5 when the concentration of RIP was 125 μg mL−1. Both kinds of polysaccharides can alleviate the decline of white blood cells, lymphocytes, monocytes, neutrophils, and serum IgG and IgM caused by cyclophosphamide. The two polysaccharides can regulate the rapid recovery of weight in immunosuppressed rats and increase the spleen index of immunosuppressed SD rats. The polysaccharides from the two traditional Chinese medicines can alleviate the immunosuppression caused by cyclophosphamide and promote the immune function of the body, which can be used as raw material resources of new veterinary medicine.

In order to further study the mechanism of hydrolysis reactions to sugars using cornstalk on plasma, preliminary study of reactive process are carried out. Model compounds of cornstalk components are chosen and hydrolyzed on plasma. Activation energy of elementary reactions, which are single-molecule reactions, free radical reactions and bimolecular reactions, are calculated by bond energy percentage rules. Elementary reactions and preliminary reaction mechanism model, which cornstalk hydrolyzes to sugars on plasma are identified.

Polymer materials play an important role in today's social development, and become important materials in industry, agriculture, national defense and other fields. With the further development of modern engineering material technology, polymer materials, together with information technology and biotechnology, promote the progress and development of society. The performance and quality of modified polymer materials have also entered the research field of vision of various industries and become the focus of exploration and analysis. The following is the research on the fracture behavior of modified polymer materials with the help of digital image correlation method. The purpose of this paper is to clarify the basic fracture work, shaping work and other fracture work parameters of various modified polymer materials, and grasp the root cause of fracture work parameters of modified polymer materials, so as to clarify the modification processing parameter means of these polymer materials.

This study described a different nano-titania(TiO2)/polymer composite where TiO2 were uniformly deposited on the porous poly(styrene-divinyl benzene-co-maletic anhydride)　[poly(st-DVB-co-MAH)] microspheres. The morphology of the composite microspheres was analyzed by scanning electron microscope and X-ray diffraction. Both the diameter of the pore and the MAH functional groups played a crucial role in controlling the structure of TiO2 shell. The rutile nanoparticles were incorporated evenly onto the surface of the porous microspheres when microspheres with pore diameter of about 146.8 nm and with surface 30 wt% functional groups (MAH) were used as substrate.