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

The objective of this research is to produce the T-Bar. The mixed Gule Phenol-cyanate to made ceiling Plate-Bar plate from the agriculture process’s waste. The researcher brought physic nut plant to produce T- BAR plate for interior building. It was tested based on Thailand industrial standard (TIS 876-2547) for determination of moisture content density absorption and expansion when soak in water as well a cohesion and perpendicular surface tension flexural resistance and modulus of elasticity . at The results show that suitable size material should not thicker than 2 centimeters. The experiment of ratio between physic nut plant and phenol cyanide resin at 90:10 and 92:8. It was found that suitable proportion of physic nut pant and phenol cyanide resin was 92:8. The temperature used for compression was 120o C. The appropriate density prior to the compression plate was 0.80 g/cm.3 The average moisture content of materials before compression was 8.88%. The suitable compression was 151 lb/in?. The moisture content of the product was 7.64% The density was 0.818 g/cm.3 The expansion value after soaking in water for 2 hours was 8.02% and water absorption was 14.22%. Inner bond was 0.55 MPa. Flexibility was 22.44 MPa. and mordulus was 2112MPa.The result of testing complied with the Thailand Industrial Standard (TIS 876-2547).It was concluded that physic nut plant can be used as raw material to make T- Bar plate for interior building

The fault in a power distribution system disturbs the power dispatch under normal conditions therefore decreases the quality of the electric power. The single line to ground fault is an asymmetric fault that may have a high percentage chance to happen. The kind of fault changes power and voltage dramatically. The size of the phase voltage decreases which affect the economic damage of the system. This paper presents an analysis of grounding systems to reduce voltage drop in a power distribution system by using the technical analysis system in case of one phase to ground fault. The objective is to minimize voltage drop for users using the simulation with single line to ground fault in distribution system voltage level at 22 kV PEA’s test system. The simulation utilizes the EMTDC-PSCAD program. The results show that the grounding method can reduce the voltage drop and reduce the damage of the economic system