This research is developed and designed wall clocks decorative home From sawdust waste in the factory Bang Pho district in Bangkok. The study was conducted by testing groups of wood manufacturer Bang Pho community the results are as follows. The study found that the criteria of design analysis from the experts were 3.97 at a high level and the satisfaction of the product production was 4.11 at a high level. When evaluating the overall picture the mean score of 4.04 was high level.

This paper presents the simulation and experimental result of class-E power amplifier. It is often used in designing a high frequency ac power source because its ability to perform the conversion efficiently even at high frequencies with significant reduction of switching losses. This paper aims to compare the transmission performance of electrical power between the air core transformer and iron core transformer which the identical input voltage of 50 VAC. Both transformers are designed to step voltage up (step up transformer) ratio of 1:4.5. The Arduino microcontroller Arduino was used to generate a pulse width modulation (PWM) with operating frequency of 3.74 kHz. IC gate drive TC4422 was used to drive the IRF510 MOSFET. Based on the simulation and experimental results the power loss in air core transformer is 75 percent while power loss in iron core transformer is 0.2 percent. The maximum distance that can transmit electric power of air core transformer is 9.3 centimeters.

The main objective of this research is to design and develop products lamps made from vine forhome decoration. The research began by studies the style and quality of vine after that questionnaire interview and observation of the behavior of people in the community were the tools to conduct this research. Rajaburi provinceis the sample and the population was acquired by sampling group. The analysis of the data showed that the average percentage of products used in home decor products such as lamps. The products are used to decorate the home. The house should take into account the nature of the product because it allows the access to nature and the lifetime of the product breaking the car or break easily digested because it is made from natural materials

This research aims to study the parameters have affected the pipe which was studied the heat transfer characteristics of a heat pipe with a mesh wick. The heat pipe made from copper tubes with intemal (ID) as 10 and 12 mm and length of 30 cm which was installed a copper mesh wick inside a tube. Three working fluids are distilled water ethanol and refrigerants-11 (R-11). The filling ratios is 50% with respect to evaporator volume. The operating temperature at the evaporator section is: 50 70 and 90 oC. The condenser section has cooked by water with a flow rate of 0.5 L/min. Then all of the experimental data were compared with the heat pipe without copper mesh wick. It was found that heat pipe at ID 12 mm yielded a better heat transfer rate when compared with heat pipe without a mesh wick. The heat pipe produced a heat transfer rate value of 7.3 W and heat pipe efficiency of 58.5 at evaporator section’s temperature of 90oC. In addition the mesh wicks will help transfer the working fluid in the condenser section return to the evaporator section. The condensed liquid had spread around the walls of the heat pipe. The working fluid was condensed to the evaporator section then affected to a higher heat transfer rate.

This research main objective is to design and develop products lamps and wooden plate made from coconut leaves for home decorating items. The research began by studies the style and quality of coconut leaves after that questionnaire interview and observation of the behavior of people in the community were the tools to conduct this research. Samutsongkram District is the sample and the population was acquired by sampling group. The analysis of the data showed that the average percentage of products used in home decor products such as lamps and wooden plate. The products are used to decorate the home. The house should take into account the nature of the product because it allows the access to nature and the lifetime of the product are breaking easily digested because it is made from natural materials.