This thesis proposes a method for detecting harmonics current in the adaptive active harmonic filter with Recursive Least Square (RLS) algorithm. The proposed method is based on the theory of noise cancellation adaptive filter. Originally the theory was used for audio signal processing but this thesis is applied to the harmonic current detector of an active harmonic filter. The principle and construction of the harmonic current detector in the adaptive active harmonic current filter with Least Mean Square (LMS) algorithm and Recursive Least Square (RLS) algorithm are presented to compare the efficiency of both algorithms. Then simulate these two algorithms with Matlab-Simulink program to simulate the three case studies. All three case studies that simulate are generally available in industrial plants. The simulation results show that the harmonic current detector in the adaptive active harmonic current filter with the LMS algorithm and the RLS algorithm can detect the harmonic currents in the power systems. However the RLS algorithm is more efficient and has less error value than the LMS algorithm. Therefore it is confirmed that the RLS algorithm proposed in this thesis is appropriate to use with the adaptive active harmonic current filter to really work in the industry.

The research purposes were to analyze and search for wastes in the planning process and transportation of the automobile parts of a transport company in Samut Prakan using Makigami Lean and ECRS Techniques. The informants used in this study were the support staff working the planning process and automobile part transportation for the car assembly factory in the industrial estate Rayong Eastern Seaboard. Six employees from different work units took part in the in-depth interview as the research tool for the data collection. Statistics used in the data analysis including percentage and workflow analysis with related management tools. The study indicated that searching for the waste in the technical planning process with Makigami Lean and ECRS Techniques could help reduce the work time for 1060 minutes in each step.

This research aims to study Design guidelines for home decoration woven from pandanus odoratissimus linn the woven pandanus Phanans home parish of the island of Koh Lanta Krabi. Sample in Research is foreign tourists 50 peoples and Local 50 peoples. Want to buy product Home decoration Krabi. The research instrument was a questionnaire want side different of the target audience have confidence equal to .890 statistical analysis was performed by percentage. Average mode and questionnaire to evaluate satisfaction in the field of use and in marketing for home decoration woven from pandanus in the process of evaluating alternatives and in the assessment process compare with the original souvenirs by questionnaire 2 edition have confidence equal to .893 and .830 respectively. Statistical analysis was performed by means of percentage mean and test the hypothesis with the t-test statistic type Dependent Sample. The research concludes that. 1. Workings portfolio design home decoration method 1 small put of box can adjust the size between channels. Method 2 box put of large removable foldable and Method 3 small table of lamp removable foldable. 2. Target groups choose the design of home decor in the 3 approach. 3. The target audience is satisfied with the new home decor more than the original in all sides. Statistically significant at the .05 level dealers are more satisfied than the original model in almost every aspect. Except for eco-friendly images and the new home decor is more effective than the old one.

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 research study to the effect of pozzolanic materials by replacement cement by fly ash and Meta kaolin which affect the mechanical and physical properties of concrete. According to Standard test such as Compressive strength flexural strength and impact strength. The replacement cement by fly ash was 15% 30% and 45% respectively and replacement cement by meta-kaolin was 10% 15% and 20% respectively. The results showed that the compressive strength of concrete at 28 days. When considered ratio w/b = 0.40 was higher than w/b = 0.45 all ingredient. The replacement cement by fly ash was the most effective. 10% (375 ksc) 15% (362 ksc) and 20% (354 ksc) respectively. The replacement cement by meta-kaolin gave the highest flexural strength of 41 ksc higher than control mixed concrete and all other ingredient. At the age of 28 days The replacement cement by meta-kaolin was 10 percent result to the highest impact strength was 11 joule which was close to that of fly ash by 30 percent give value was 110 joules and more than replacement cement by meta-kaolin was 15% (100 joule) and 20% (95 joule). It can be concluded that the increase in meta-kaolin content result to compressive strength will reduce flexural strength and impact strength. As the amount of fly ash increased the compressive strength increased. flexural strength and impact strength Increased value.