This Research is to Study the Development of 6k White Gold Low Alloys Metal for Jewelry Production The Optimum Conditions for Casting Jewelry and Jewelry were Investigated. The Results of the Experiments Show that the Chemical Composition of the 8k White Gold Low Alloys is Slightly Different when Compared with XRF (X-ray Fluorescence Spectrometers) Pre-and Post-Melting Quantities The Heat of the Test Specimen was found to be 33.33%Au+50.67%Ag+10%Cu+5%Zn+1%Sn33.33%Au+50.67% Ag+8% Cu+7%Zn+1%Sn and 33.33%Au+50.67%Ag+8%Cu+8%Zn+0%Sn It is Found that the Heat from the Beginning to the Level of Change before the Liquid is used the Average Temperature of 458.9 – 326.3 Degrees Celsius Respectively 33.33%Au+50.67%Ag+8%Cu+7%Zn+1%Sn It is the Formula that Gives the Lowest Value of Liquid State Change from 326.3 Degrees Celsius to the Best Value of this Experiment. Suitable for use in the Manufacture of Jewelry due to its Melting Ability for Molding. Melting for Molding and Formed by Hand. The Amount of Zinc(Zn) may be an Important Factor in the Variation which is Directly Proportional to the Maximum Increase in the Final order of 7 Percent

The purposes of this research are : 1) effectiveness of teaching of multimedia teaching materials Basic Subjects Inventions About Artificial Flowers for students of Home Economics Saowabha Vocational2) a study of student is satisfaction with teaching of multimedia teaching materials Basic Subjects Inventions About Artificial Flowers for students of Home Economics Saowabha Vocational and 3) the assessing is possibility and the usefulness of the medium of teaching of multimedia teaching materials Basic Subjects Inventions About Artificial Flowers for students of Home Economics Saowabha Vocational. The population of the study is that students of Home Economics Saowabha Vocational 1st year about 19. The instruments used in this research include multimedialearning assessment tests and questionnaires. The statistics used in this study include E1 / E2 average and the standard deviation. The research found that as follows: 1) students were evaluating during the study a performance fee equal to 80.68 and the assessment report. The performance was 85.74 indicating that the medium of instruction multimedia performance was in accordance with the specified criteria. 2) Student satisfaction with teaching the basics of multimedia creationThe flowers were ; 2.1) the invention of paper roses student was satisfacting the high level.The first two items in order from most to least found that the side with the highest mean score. The media was inferior to the benefits they were receiving from the media and the minimum content. 2.2) Artificial flowers from tissue paperstudent has been satisfacting the high level the first two items in order from most to least found that the side with the highest mean score. The benefits were receiving by the media followed by the media minimum and content and 3) the assessing possibility and the benefits of will have been learning the basics of multimedia creation. The Artificial Flowers Overall were experts opine that appropriate possibility and helpful the high level.

The purpose of this research was to improve the efficiency of solar cell modules by cooling with heat pipes. The test set consisted of three 80 watt solar modules that were made of mono-crystalline. The first module did not install heat pipes while the second module installed heat pipes using ethanol as the working fluid and the third module installed heat pipes using R-11 as working fluid. Solar radiation intensity electrical energy produced by the solar modules and temperature of the solar modules were recorded. The results showed that the average temperature of the first solar cell module was 52.9oC and the case of not install heat pipes on module. For the units with heat pipes it was found that unit with ethanol heat pipe had an average temperature of 50.7oC and efficiency at 10.2% whereas the unit using R-11 heat pipe had an average temperature at 49.2oC and efficiency at 11.8% From the experiments it was concluded that the installation of heat pipes could increase the efficiency of solar cell mokules.

This Research is a Development of 8k White Gold low Alloy Metal Components for Jewelry Pieces. By Study and Analyze the Influence of Silver Alloy Gold Alloy Bronze Alloy Zinc Alloy and Tin Alloy. Which Affect Microstructure and Mechanical Properties. (The Different of Color Scales) And Resistance Behavior of Lowered 8k White Gold Alloy in Varies Ratio. The Results Showed that Tests and Analysis to Find the Quantities of Elements has found out that Chemical Components of 8k White Gold Low Alloy Metal had a Little Different Quantities when Compared Between Before and After Centrifugal Casting Process. The Tests and Analysis Results of Mechanical Properties of Test Pieces Showed that the Hardness and Tensile Strength of 8k White Gold Low Alloy Metal with Mixture of 33.33%Au+50.67%Ag+10%Cu+5%Zn+1%Sn had Minimum Ultimate Tensile Strength Equal 0.54 kN/mm2 Minimum Elongation Percentage of 55% and Maximum Hardness of 137.0 HV. The Test Results also Show that the Mechanical Properties of the Material are Brittle Material. When Perform a Forming Process the Pieces will be Easily Broken which was Meant that the Forming Process would be Difficult. But The Color Level of the Test Pieces at this Composite Ratio had the Best Metal Color Level. The Brightness L * = 74.87 was a * = -0.89 b * = 13.74 and the Value of ΔE with the Lowest Color Difference Level of 1.35. Compared to other Varies Ratio. It Showed that 8k White Gold Low Alloy Metal Test Pieces were Very Green and Came out Slightly Yellow Compared to the Blue Line that Approached the Standard Line. These Properties were the Physical Properties Required in 8k White Gold Low Alloy Metal Jewelry Pieces Production. Also there were the Results of 8k White Gold Low Alloy Metal in Two Formulas 8k 33.33%Au+50.67%Ag +8%Cu+7%Zn+1%Sn 33.33%Au+50.67%Ag+8%Cu+8%Zn+0%Sn. These Formulas had Tensile Strength in the Range of 1.10 0.60 kN /mm2 Elongation Percentage in the Range of 70 61% and Hardness of 115.6 123.3HV Respectively. The Results of the Mechanical Properties Test of the Test Pieces Showed that 8k White Gold Low Alloy Metal 33.33% Au+50.67%Ag+8%Cu+7%Zn+1%Sn has Similar Tensile Strength but Maximum Elongation Percentage of 70% and Minimum Hardness of 115.6HV. Which was Suitable for Forming Because of good Ductility and Stretchness Properties (Ductile Material). Forming would be Easy. These were Good Mechanical Properties for Forming Precious Metals.

This art thesis aims to design and develop packaging for Healthy CoconutProducts of Lumnam tha Jeen Housewives Group Nakhon Pathom. Which consists of designing and developing the packaging structure graphics logo and shelves. The problem founded in the interview with the entrepreneur was that the packaging still lacks the identity that attracts attention the information on the packaging also shows the details of the product is not complete and the structure is inconvenient to transport or carry among foreign tourists. The present packaging is a wooden basket in some countries must pass an examination in timber imports. The operation has 4 steps as follows: 1 )Interview the entrepreneurs and study the relevant documents and research 2) Design and develop the packaging 3) Bring the expert questionnaire for 3 persons and 4) Design evaluation Data analysis using summary information finding the frequency percentage and average and presented in the form of treatise and composition tables. The results of the research concluded In the structure of packaging shampoo conditioner hair serum hair shower gel and body lotion that have been evaluated as the highest (4.70) looks like a circular cylinder the bottom is wide chasing the size until the top small which brought the concept from the coconut tree. The portable packaging structure includes the products of shampoo hair conditioner shower gel and body lotion that are rated as the highest (4.75) the shape is flat easy to carry and the outer contour line from the coconut tree. The logo has been evaluated as the highest (4.15) uses the golden ratio principle to create recognition. Highest rated graphics (4.50) Use gradient green color mixed with brown which comes from the color of the coconut giving the feeling of using natural ingredients. The form of the shelf that has been evaluated as the highest (4.63) looks like a large podium on the top has a shelf for the product the size height of the shelf is in the eye level of the consumer.