The objectives of this research were to study personal factors and cat product consumer behavior. To study marketing mix factors related to customer behavior included marketing mix factor related to cat product consumer behavior in Thailand metropolis. This research was combined 2 methods. Quantitative research: The samples were 400 consumers by using questionnaire as tool to collected data. Analyzed by using descriptive statistics to determine frequency percentage mean standard deviation Pearsons chi-squared test statistics on the statistical level significance of .05. And Quality research: The sample are opinion leader vendor and consumer by using Indepth interview to analyze relation between opinion vender and consumer conform to result of quantitative research. The research results revealed as follow: 1) Majority of the samples were female age between 31-35 years old single status tropically had bachelors degree average monthly income level 20001-30000 Baht per month own only one cat main reason for taking care cat to make friend. 2) Majority of the samples were focus on the quality of the cat product. Frequency of purchasing few times per week. Spend more than 500 baht per time. Decission making by themselves. The quatity of purchasing are uncertainty depend on the convenience and purchasing by themselves. The location of purchasing mostly in departmentstore or supermarke at pets department. 3) Marketing mix factors related with cat products consumer behavior were focus on purchasing frequency of purchasing expense of purchasing per time person who is involved quantity of purchasing chanal of purchasing on the statistical level significance of .05 except The place of purchasing frequenly are unrelated. The results of the Quantitative research: the most of opinion of opinion leader vender and consumer werw conform to quantitative research.

The purpose of this research was to study personal factors and service marketing mix factors affecting consumer satisfaction towards co-working space in Bangkok. This research combined a research methodology between quantitative and qualitative research with tools for data collection including survey and in-depth interviews. Quantitative data was obtained from a survey of 400 samples using coworking space in Bangkok. Qualitative data was obtained by the use of in-depth interview with consumer manager and coworking space specialist. The results showed that the personal factors affecting consumer satisfaction towards coworking space in Bangkok were mainly 1) ages between 25 - 30 years old at 44.25% 2) private employees at 53.00% 3) average monthly salary 20001 to 30000 baht at 42.75% and 4) usage frequency 1 - 2 times per week at 37.25%. Service marketing mix factors affecting consumer satisfaction towards coworking space in Bangkok were 1) product (mean 4.22) and 2) physical evidence and presentation (mean 4.37) at the .05 statistical significance level.

The objective of this study was to investigate mechanical properties namely hardness of cemented tungsten carbide workpieces which were the mixture of 75 wt% tungsten carbide (WC) and 8 wt% -10 wt% cobalt (Co) as the binder . Other composites used included 0.5 wt% tantalum carbide (Tac) 14 wt% - 17 wt% titanium carbide (TiC) and 0.5 wt% - 1 wt% niobium carbide (NbC). The workpieces were then formed and sintered at 1450 °C. After the forming and sintering processes were completed the workpieces with different composites were obtained. The results showed that there were the differences in green density and hardness between recycled tungsten carbide powder and commercial tungsten carbide powder workpieces. Different particle characteristics and chemical components of tungsten carbide powder resulted in poor flow between the particles affecting density and hardness. Besides the compression of the metal powder before sintering could reduce the porosity because low porosity led to less shrinkage during sintering as shrinkage during sintering varies with the workpiece density after forming

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.

To Improvement the power factor is very important. Because the costs are increased or reduced. To Improvement the power factor the higher the value it is necessary to buildings offices and industrial buildings or the fact that the industry needs real power. And reactive power source to operate. This paper presents the design and construction of reactive power factor control. Which amounted to 6 working order by the first sequence is divided into three three-phase electrical power system and three consecutive singles phase by active power different. first1 is reactive at 5 kVAr second 2 and third 3 are reactive at 2.5 kVAr forth 4 fifth 5 and sixth 6 precious marine active 0.83 kVAr control. the power factor controller that controls RG3-12 pay Oval active in various sequences. As a result when not equipped with reactive power compensation software to control the power factor. This makes the flow of the high and low Power Factor schedule. When equipped compensate reactive power source to power factor control. Single-phase motor 1 kW and light bulb 164-watt making the current decline of 14 amps rest 12 amps of the power factor increases from 0.5 to 0.929. When connected to three-phase motor with 2 kW 0.82.2 flow down from 2.360 rest 0.942 amps of power factor value up from 0.308 to 1.0.