This paper presents the method to solve the transmission line parameters calculation problem with computer program. The transmission line parameters are an important of power system which calculates the voltage current power and other. Transmission line parameters program is programmed with Delphi in graphical user interface. This program can calculated the resistance inductance and capacitance of single and three phase transmission line. To verify the performance of the proposed program the results are compared with the manual method. The results show that the program method is able to obtained 100 percent accuracy

In this study the mao berry marc which was divided into 5 varieties including Fapratan Phusung Phupanthong Yaykhamta and mixed variety were dried in tray dryer at low temperature (50?C) and high temperature (60?C) for 72 hr. All samples were investigated their properties including yield color water activity pH tannin total phenolic total anthocyanin antioxidant activity in term of %DPPH activity total microorganism and yeast & mold content. It was found that the yield color in term of ?h aw tannin and anthocyanin content of low temperature drying sample showed the highest value. However the total microorganism and yeast & mold content of high temperature drying samples were not present in all samples which less than those recommended in the Thai Community Product Standard (dried fruits: 136/2003). Eight trained-panelists were used for Hedonic scale (1-9 point) sensory evaluation including clarity color odor taste and overall linking of high temperature drying samples were similar in five varieties (P>0.05).

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

The natural rubber with silica masterbatch was produced and used as based material in rubber compound modified from standard tread formulation given in ASTM E 1136. The reduction of mixing energy and rubber vulcanizate properties were investigated. Results indicate that in comparison with STR 5L compound the rubber with silica masterbatch i.e. fresh latex (FNRmSi) low viscosity natural rubber used 1.0 phr of hydrogen peroxide (LNR1mSi) and low viscosity natural rubber used 0.34 phr of hydrogen peroxide and 2.7 phr of potassium persulphate mixture (LNR2mSi) provides maximum mixing energy saving of 30.48% 33.37% and 37.20% respectively. The scorch time and cure time rise with increasing filler loading. The mechanical properties of LNR1mSi and LNR2mSi are similar to those STR5L compound whereas FNRmSi vulcanizate shows superior mechanical properties such as 300% modulus tear resistance abrasion resistance elongation at break and tensile strength. The homogenous distribution and interfacial interaction of silica filler and natural rubber matrix were enhanced by the self-assembled silica masterbatch as shown by the fracture surfaces morphology of the vulcanizate using a Scanning Electron Microscope (SEM). The silica masterbatch form has reduced the mixing power consumption and enhanced the mechanical properties.

This research aims to study influence of factors on crisis communication in tourism and integrated marketing communication of entrepreneurs and foreign tourists. This study is quantitative research by survey using end-closed questionnaires with data collecting from 400 foreign tourists and 400 entrepreneurs. The statistics used for data analysis by descriptive analysis include Frequency Distributions Percentage Mean Standard deviation. And analyze The Linear structural equations modeling by LISREL. The research results showed that the foreign tourists expected that during the crisis Thailand should ensure the safety of tourists. The most suitable integrated marketing communication tool after crisis is country identities. From entrepreneurs’ side they also expected that the entrepreneur should be communicated directly with officer in charge during the crisis about sale promotion and changed tourism program for safety. Also the most suitable integrated marketing communication tool after the crisis is internet. The linear structural equation modeling of either group is consistent with the empirical data. Thailand reacted to the crisis occurred rapidly by using the two-way communication to provide information to tourists best describe crisis communication at 87 percent. On the other hand marketing promotion best describe integrated marketing communication at 74 percent.