Numerical solution of one-dimensional non-viscous Burgers equation usually applies the upwind difference method, and it is common to find a solution by this finite difference approximation. As for the analytic solutions of partial differential equations, many books are published recently. However, there are not so many documents for the numerical solutions and methods.Here, we show some exercises and show the program of the C and BASIC language. Based on these results, we want to discuss them about some problems and the future prospects.

Facility horticulture has high productivity, more profitable than rice or field crops. Without soil, Hydroponic cultivation systems can easily control root-zone environments, which leads to high quality productions. The authors developed a prototype of a simple, space-saving liquid-filled hydroponic cultivation system using polyvinyl chloride(PVC) pipes. System operation was checked through cultivation tests with Japanese mustard spinach. The results revealed the following facts: (1) prototype system was able to operate continuously 24 hours a day for approximately 50 to 60 days during the summer and fall seasons; (2) Japanese mustard spinach grown in the system maintained a standard size although the mortality rate may differ depending on the growing season.

In recent years, it has become commonplace to use motion capture to create the movements of characters created in 3DCG when making movies, animations, and computer games. The purpose of this report is to provide an overview of motion capture as well as to explore examples of motion capture applications using an inertial motion capture system.

In recent years, emerging infectious diseases have become a worldwide concern. Number of cases of Japanese spotted fever, and severe fever with thrombocytopenia syndrome (SFTS) transmitted by ticks is increasing in Japan. The authors collected ticks around Yokkaichi University (Mie Prefecture, Japan) to discuss their infectious risks. Ticks were collected sixteen times during February and October 2020, among a 930 meter trail in a bamboo forest behind the university studio facility. In total, thirty ticks of five tick species from two genera were identified. The most frequently collected species were Haemaphysalis flava, fifteen individuals. Number of confirmed cases of spotted fever and SFTS are larger in south Mie Prefecture, and range expansion of wildlife such as Japanese sika deer (Cervus nippon) is thought to be one factor. Since sika deer had already been sighted around Yokkaichi University, attention is required.