The main objective of the study is to design blades for chopping heart rice straw. This study is composed of three main testing parameters. The first parameter used is speeds at which the knife blades that will chop the straw. They will have 2 speeds one at 540 and the other at 720 rpm. The second parameter is the types of blades that will be used eclipse blades and smooth blades. The last parameter is the cutting edges. The eclipse and smooth types of the blades will have 4 5 and 6 cutting edges. For this test we use stubble sorted 50 heart rice straws. Placing the straw on the prepared steel and test with all three testing parameters repeating each testing parameter thrice and record the results. Based on the testing and evaluation the 6 edge eclipse blades with a speed of 720 rpm. Yielded the highes results for chopping heart rice straw at 66 percent. For the 6 edged smooth blades with a speed of 720 rpm the yield results for chopping heart rice straw was at 35.76%

The aim of this research was to determine the effects of gender faculty and academic performance on the prevention of students to use to communicate on the Internet. Four hundred and thirty-three (male=225 and female=208) undergraduate students from 3 faculties including faculty of business administration and liberal arts science and agricultural technology and engineering in Rajamangala University of Technology Lanna Nan were used to fill in survey questionnaire. The results found that the gender had effected on the prevention oneself in the communication on the Internet. The male could prevent oneself more than female. In addition the student from engineering and science and agricultural technology could prevention oneself in the communication on the Internet more than faculty of business administration and liberal arts. However the academic performance had not affect on prevent oneself in the communication on the Internet. This study concluded that the prevention oneself in the communication on the Internet is affected by the gender and faculty but not the academic performance.

Silk was one of economic goods that provided high revenue for agriculturists. Due to changing weather however there were some problems and limitations of silkworm breeding. For instance too hot and humid weather caused mold infection and made the silkworm easily get infected. On the other hand too less humidity might lead to dry mulberry leaves. In addition the agriculturists had no records of the silkworm breeding. This research realized these current obstacles and aimed to develop an embedded Android application system to control electrical system and temperature in a silkworm house. The operation was divided into 3 parts consisting of direct control via control board of the silkworm house control via wireless Bluetooth on the application SMS delivery system to warn distant users. The results of this study provided the electrical control system and temperature in the imitated silkworm house. It could automatically control the internal temperature and retrieve data of control equipments via the Android application system and Bluetooth for near distance about 20 meters and far distance by sending SMS. The system also measured the actual temperature and humidity from SHT11 Module. The temperature could be fixed between 24-30 Celsius while the humidity could be defined between 60-90% by applying ventilators lights and jet sprayer

The urban and economic areas in Bangkok at present are grown rapidly. The travelling and road usage are increased which make the traffic jam problem happened and result the economics and social loss. Accordingly it is necessary to study the state of traffic and transportation to make the planning and define the ways to solve the problem via physical conditions or light signals. Not only the current problem s but also suggest the way to solve the problem which may happen in the future. This research studied about traffic volumes and physical conditions at Khae Rai Intersection. The real traffic is simulated by NETSIM program from the traffic volumes and physical conditions data which are collected to examine and analyze the effects from the traffic and suggest the ways to solve the problems. The results showed that NETSIM program can be used for simulating before and after traffic condition at Khae Rai Intersection. The conclusion showd the better traffic condition after it was solved by light signals and physical conditions

This paper presents a study of low-frequency oscillations in compensated electric power systems with Flexible AC Transmission System of the power system frequency using PSAT Tool box To assist in the analysis of the stability of the system When the power transients in power systems is simulated By using standard IEEE 14 bus system as a case study. The Equipment that used to control the swing frequency of the is a flexible electrical power control devices or FACTS are two kinds of serial and parallel. The analysis showed that two models are compared with the time (Time Domain) and see the effect of the Eigen (Eigen Value) of the simulation results show work to see that controls are electrical flexible compensation. of low frequency oscillations in power systems in acceptable coordinates