Foundation of Graduate Study in Mechanical EngineeringmAdvanced Dynamics

Dynamics is the foundation of undergraduate study in mechanical engineering. If you are good in dynamics, you will be good on all other courses. Advanced dynamics is the foundation for graduate study. The author taught advanced dynamics for more than ten years, this is the author＇s observation. Why it is so？ Because the course of advanced dynamics covers usually many mathematical fundamentals such as vectors, tensors, matrices and rotation operators; principles and applications in dynamics from particle dynamics to rigid body motion, from small oscillation to vibration of systems with multiple degrees of freedom, the author＇s course covers also special relativity theory. They are very innovative. And they set the foundation for the study of all the graduate courses. Science is always in progress, dynamics is in the same form. Just say a few examples to illustrate the frontier of dynamics： missile shooting missile is important in our defense, the author covered this as an example in particle dynamics. Space ship travels from Earth to Mars is another example. Several rotational motions with different axes can be combined to one through the use of rotation operator. This is important because it usually can save time. All these examples will be included in this paper in some details.

Survey on the General Academic Emotions of Educational Management Postgraduates——Taking Guangxi Minzu University as an Example

The enrollment of education management majors has the characteristics of work experience requirements,limited employment directions,and a high proportion of adjustment students.A large number of educational management postgraduates who are in the reality of adjustment enrollment,pursuing postgraduate studies at an older age,and employment confusion have low levels of positive academic emotions and complex academic emotional problems.This study takes the educational management postgraduates at Guangxi Minzu University as an example to investigate their general academic emotions.The conclusion is that educational management postgraduates have lower positive and negative academic emotions than the general college student population;The first year of graduate school has a higher level of positive emotions and a lower level of negative emotions compared to the second year;Married students have higher levels of positive academic emotions and lower levels of negative academic emotions compared to unmarried students;There is no gender difference in academic emotions,but girls who are eager to enter marriage and have high levels of marriage and childbirth anxiety may have higher levels of negative academic emotions than boys and other girls;It is more practical to pay attention to students’positive academic emotions.Based on this,suggestions are made for the management of this major in the school.