These researches were to determine the preparing and drying on physical and chemical properties of germinated khaohang rice from KDML105. Two factors on study were preparing germinated khaohang rice (chill at 5 oC and frozen -20 oC) and drying method (tray drier and infrared drier). The results on expansion (%) and texture of cooked rice found that there were not significant influence interaction and two main factors. But main factor on infrared drying method were affected to the highest head rice yield (%) and lowest on Chroma (C*). As same as gamma amino butyric acid (GABA) had the highest 23.37 (mg/100g) and preparing germinated khaohang rice had between 20.50 to 22.21 (mg/100g). The pasting properties reducing sugar total phenolic scavenging activity of DPPH free radical (%) and resistance starch were significant influence interaction.

This research aims to collect and analyze financial data as well as assess financial feasibility and analyze business environment for investment in rice seed production of rice community center in Muang district Phitsanulok. Primary data in financial information used in the study were collected from rice seed center and rice community center. Secondary data were collected from documents and information of both government and private agencies. The research found that rice community center in Muang district Phitsanulok gained rice seed support from the Rice Department for seed production. However there were problems in production management that were not in accordance with rice seed production standard. Therefore the center had to change it operation from manufacturer to be buyers of rice seeds for its members. Financial analysis revealed that in terms of rice seed production cost the total cost per rai was 3800 to 7500 baht depending on the method of rice growing. Income from sale could be classified as sale price per sack (25 kg) at 575 baht per sack and sales price per ton from 11000 to 15000 baht. Analysis of business environment of the community center showed that the existing condition did not support business performance. Thus the possibility of investing in rice seed production was low.

This paper presents a mathematical modelling for design the control system of a liquid. The system are consists of one and two tanks of a liquid. To confirm the achieved mathematical modelling is used to design P PI PD and PID controller in the frequency domain. The experimental results are indicated as the following. An one tank of a liquid controlling The controller can be control the liquid level to set point with in 100s. In the case of a disturbance occurs in the system it is perform by drain a liquid. As same as the controller it can be control the liquid level into the steady state. In the part of the liquid control this is the interaction between two tanks. The experimental results of the system operation the controller can be control the liquid into the set point both occur disturbance and without disturbance respectively

This paper presents a design of the control system to control AC/DC converter. Algorithm of a control system design consists of the output voltage loop control used a fuzzy gain scheduling of PI control and the current loop control used a hysteresis control which is described in this paper. The evaluation of the proposed control system is used to control an isolated CUK AC/DC converter operation with a 250W load and a -48V output voltage. The system is achieved as the following; the tight output voltage both the steady state operation and the transient response a power factor is nearly unity and the waveform of input current is nearly sinusoidal. In addition the control system design is simple and uncomplicated