The aim of this work was to validate the sample preparation using a microwave digestion for determination of total arsenic in a spiked soil. Graphite fernace atomic absorbtion spectrophotometer (GFAAS) technique was used to determine the total arsenic using palladium nitrate Pd(NO3)3 as a modifier agent. The instrumental detection was performed under the condition steps of drying ashing atomizing and cleaning to be 100 1200 2250 and 2600 C. The external calibration curve was constructed using the automatic program based on the master standard of arsenic with 20 ppb. It was found that linearity range was in the range of 1 to 20 ppb with R2>0.999. Based on microwave digestion condition the sample preparation with and without HF was also compared the total arsenic in the spiked soil with a 10 ppb. The result shoewd that the arsenic content obtained fron the prearation with and without HF did not significantly diferent at the 95% confidence limit. The recovery was 80.3 and 82.3% for the spiked sample with 2.5 and 10 ppb respectively. The relative standard deviation was 2.15% (n=11). The results of this work can also confirmed that the preparation method using microwave digestion provided the more advantages such as rapid a little volume of reagents completely digestion.

Research on the design of wedding dress from Rajawat pattern Koh Yor woven fabric in with laser-cutting technique has objective of design of wedding dress from Koh Yor fabric woven in Rajawat pattern by using laser-cutting technique and study of satisfaction of consumers in Amphoe Mueang Songkhla Province. The researcher studied by using concept from vegetable in type of vine in design of pattern and searched information on important principle of artistic design and information regarding Koh Yor woven fabric and inquired local experts then designed and tailor made in three styles consisting of one style of Mermaid wedding dress and two styles of Ball Gown wedding dress. The researcher surveyed about satisfaction of target groups those are working women who lived in Amphoe Mueang Songkhla Province numbering 100 women. The researcher used sampling method in type of accidental sampling analyzed information by using statistics percentage mean and standard deviation. The study result found that most respondents of questionnaires had ages from 25-30 years engaged in occupation of self-employed average income per month : 25001-35000 Baht. Most respondents had period in decision making to select wedding dress from three months to one year. The result of analyzing about satisfaction of target groups towards design of wedding dress from Koh Yor fabric woven in Rajawat pattern in with laser-cutting technique it was found that products of research in overview the respondents had satisfaction in much level. The dividing of satisfaction was in two aspects those were style of products and benefit of use. When style of wedding dress was considered the first style which there was satisfaction in first level was Style 1 Mermaid style wedding dress (mean : 3.87). The second level was style No.3 Ball Gown wedding dress (mean : 3.64) and style No.2 Ball Gown wedding dress (mean : 3.62) respectively.

The purposes of this research were : 1) To study the individual factors 2) To study the behavior on Thai dessert consumption 3) To study the relationship between individual factors and Thai dessert consumption in Samaut Songkhram Technical College The samples were 239 vocational certificate Students in Smaut Songkhram Technical College. The Instruments were questionnaire and a Test The statistics were the frequency percentage and the Chi-squared test. Results found that : 1) the students mostly were female studying in Accounting whose their parents’income not over 10000 baht per month have knowledge of Thai dessert at the good level. 2) The sample mostly consume boiled Thai dessert 1-3 times a week because of the delicious taste The each payment is up to 20-41 baht because the price was not expensive the preference Banana Leaves packaging and perception of news about Thai dessert through internet. 3) The result on studying factors found that the individual factors such as sex was most related to the preference. Educational level was related to the preference of packaging. Subject type was related to the favorite on Thai dessert. The preference in consuming Thai dessert in because of consumption the payment packaging and perception of news for the parents’income was related to the payment with statistically significant at 0.05 level.

Since the details in quasi-homogeneous region will be degraded from a conventional global image enhancement methods such as histogram equalization. This degradation causes from the saturation of the gray levels in equalization process. Then the local histogram equalization for each quasi-homogeneous region will be used in order to improve the details in the regions. To obtain the quasi-homogeneous regions the image can be segmented by using a watershed transform. The watershed transform is based on mathematical morphology; therefore the segmented regions can be effectively separated meaningful. Two adjacent regions in images which almost similar in gray levels can be separted by the watershed transform. In the color image enhancement three spectral bands are enhanced independently. Then all the three bands are assigned to each processed image in order to produce a color composite image. By the proposed algorithm the result images show the better perception on image details. Therefore the high efficiency of image classification can be obtained by using this color image.

Currently competition in terms of resolution and contrast of photos from digital cameras are widely mentioned. The higher resolution the photos contain; the more details the picture has. This fact enables the more details of pictures which also hold much more capacity of data. This also causes the electronic devices to be updated all the time to cope with those problems. Therefore the conventional devices are obsolete. This research has been developed and applied to improve digital photos with high contrast. The researcher has solved the problems by keeping the average error of the lowest results and improving heat histogram of various curves. The heat will break the histogram of the original image into n part by the concave side of the heat histogram. The part of this histogram is equal to n+1 and then smooth each other heap histogram independently. The result showed that the Tennengrade or contrast of the image is higher than the original one. However it can retain brightness errors (AMBE) as well