Due to the accelerated development of social science and technology, the development of modern science and technology is in urgent need of a large number of innovative scientific and technological talents, and the CDIO teaching mode based on the combination of practice and theory is receiving more and more attention in undergraduate teaching. CDIO teaching mode is a new education mode that has achieved remarkable results in the current higher engineering education. It always aims to train a new generation of international modern engineers. This paper introduces the proposal, background and application of CDIO, and embodies the effect of combining with the talent training program of biopharmaceutical engineering.

The major agents for wood decay are decay Fungi, Termites, Beetles and Ants. This article reviews the current methods for treating wood (lumber) which includes the use of heat treatment and chemicals. The chemicals procedures used to resist the agents of decay are mentioned. Each agent of decay is outlined as well as the best preventative measures to resist that agent of wood decay. Construction measures that would help prevent wood decay along with treatment plans are discussed. How each agent of decay causes the wood to rot is mentioned and its warning signs. These warning signs enable the treatment plan for each agent of decay. It is recommended that all lumber (wood) used in construction should be treated before use. There is recommendation for the discontinuation of some wood treatment chemicals because of their danger to humans and pets. 2% Copper Napthenate in Kerosene is highly recommended as a chemical combination that can be used to treat all agents of wood decay. This is important because some chemicals are specific to a particular agent of decay and in this regard more than one treatment is required to hinder the agents of wood decay. A treatment plan for the use of 2% Copper Napthenate in Kerosene is outlined and the use of a Modified Gedrian’s Bath is proposed to treat wood at the commercial level. Engineering dimensions and temperature range for the use of 2% Copper Napthenate in Kerosene using the modified Gedrian’s bath is explained. The dangers of using 2% Copper Napthenate in kerosene is explained but these dangers are superseded by the economics of its use and its broad spectrum against all agents of decay. It is noted the limitations of heat treatment.

In this paper, density functional theory (DFT) was applied to study the dissociation process of NH3- and H2O-loss reaction of the deprotonate serine ([Ser–H]–) at BHandHLYP/6-31G level. The geometric structure of the isomers, transition states and dissociation products of [Ser–H]– was optimized. The related energy of the material was obtained by frequency calculation, and the potential energy profile of NH3- and H2O-loss reaction was constructed. The possibility and direction of the reaction along different paths were discussed. It is indicated that the stable structure of [Ser–H]– is 1d. In the NH3-loss reaction path, the optimal structure of proton serine isomer is 2j, and the dominant channel is Path 6. The Gibbs energy of the corresponding ration-determined step is 61.88 kcal•mol-1. The optimal structure of [Ser–H]– isomer in H2O-loss reaction is 1i, and its dominant channel is Path 7. The Gibbs activation energy of the corresponding ration-determining step is 74.15 kcal•mol-1. It can be seen that NH3-loss reaction is easier than H2O-loss reaction under this reaction condition.