The use of generating functions for solving optimal rendezvous problems has an advantage in the sense that it does not require one to guess and iterate the initial costate. This paper presents how to apply generating functions to analyze spacecraft optimal reconfiguration between projected circular orbits. The series-based solution obtained by using generating functions demonstrates excellent convergence and approximation to the nonlinear reference solution obtained from a numerical shooting method. These favorable properties are expected to hold for analyzing optimal formation reconfiguration under perturbations and non-circular reference orbits.

The purpose of this study was to develop an in-service education program on multifunctionality of agriculture and rural areas. The in-service education program for general agricultural education was developed by reviewing literature, analyzing domestic in-service education programs. The program consisted of 3 fields - understanding, experiencing multifunctionality, and applying it to classroom, and contents validity was evaluated by 3 experts. And the program was applied to 268 elementary and secondary school teachers. Before and after the in-service education program, the survey was conducted. The survey questions were about motivation of participation, satisfaction level of program, and so on. Based on the analysis of survey data, some recommendations were suggested.