จำนวน Repository ( 77 )

The Improvement Of Carbon Black From Waste Tires For Offset Printing Ink Using Coupling Agent
The Improvement Of Carbon Black From Waste Tires For Offset Printing Ink Using Coupling Agent

This work was aimed to improve the carbon black from waste tires for printing ink using coupling agent to disperse carbon black particle for making an oil-based offset ink. This experiment used 2 coupling agent these were silane coupling and derivative fatty acid and used to produce offset inks for the 7 formulas. Formula 1 Commercail carbon blackFormula 2 carbon black was not washed by Nitric acid formula 3 carbon black was not washed by Nitric acid and was added silane coupling agent formula 4 carbon black was not washed by Nitric acid and was added fatty acid modified emulsifier formula 5 carbon black was washed by nitric acid formula 6 carbon black was washed by nitric acid and was added silane coupling formula 7 carbon black was washed by nitric acid and was added fatty acid modified emulsifier. Bring all 6 formulas to test property to compare with offset ink commercial. First find the smallest particle of carbon black for 90 minutes. It was found that formula 4 took 20 minutes to make particles 12 micron and it is smalles particle of all. Then measured ink flow by Spread-O-Meter and measured diameter after 1 minute. It was found that formula 3 and 3 were 77 mm. and approximate commercial ink. Then measured tack of ink with Ink-O-Meter it was found that formula 2 3 4 6 and 7 were 2.4 and formula 5 was 2. Then measured viscosity and yield value of ink by Lary viscometer. It was found that formula 2 had 77 poise of ink viscosity and 670 dyne.s/cm2 of ink yield value that was approximate commercial ink. Finally measured Emulsification capacity (%) by Kershaw Water Pick up Tester. It was found that formula 6 had 74% and it was approximate commercial ink.

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Use of disposed waste ash from landfills to replace Portland cement
Use of disposed waste ash from landfills to replace Portland cement

In this study waste ash was utilized as a pozzolanic material in blended Portland cement in order to reduce negative environmental effects and landfill volume required to dispose of waste ash. The influence of waste ash namely palm oil fuel ash rice husk ash and fly ash on compressive strength and sulfate resistance in mortar were studied and evaluated by some accelerated short–term techniques in sodium sulfate solutions. Ordinary Portland cement (OPC) was partially replaced with ground palm oil fuel ash (POA) ground rice husk ash (RHA) and classified fly ash (FA). Single pozzolan and a blend of equal weight portions of POA RHA and FA were also used. The resistance to sulfate attack of mortar improves substantially with partial replacement of OPC with POA RHA and FA. The use of a blend of equal weight portions of FA and POA or RHA produced mixes with good strength and resistance to sulfate attack. POA RHA and FA have a high potential to be used as a pozzolanic material.

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ปัจจัยที่มีผลต่อประสิทธิภาพการทำงานระบบทีม ของกีฬาหมากล้อมไทย
ปัจจัยที่มีผลต่อประสิทธิภาพการทำงานระบบทีม ของกีฬาหมากล้อมไทย

This research aims to study the level of fundamental factors in the composition of teamwork the training and team system performance factors of Thai go chess sports and the factors affecting the efficiency of teamwork of Thai go chess. It was a quantitative method doing a survey research. The sample group consisted of 286 members from the Thai go chess Association of Thailand. The research study tool was a questionnaire. The statistics used were frequency percentage mean standard deviation and Multiple Regression Analysis. The result of the study showed that 1) factors in the composition of teamwork are like team leader team member and teamwork were at the highest level. 2) Training factors including planning implementation and evaluation were very high and the issue at the highes level was the assessment of necessity. 3) The efficiency of the teamwork of Thai go chess highly depends on creativity and continuous improvement at the highest level and high-level issues are communication cooperation and coordination. 4) The essential factors in the composition of teamwork affecting efficiency teamwork of Thai go chess including team members and operating systems are at a statistically significant level of 0.01 5) Training factors that significantly affect the efficiency of teamwork of Thai go chess include assessment planning operation and evaluation at a statistically significant level of 0.01

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การใช้แป้งข้าวสีนิลทดแทนแป้งสาลีในส่วนเปลือกของขนมเปี๊ยะกุหลาบ
การใช้แป้งข้าวสีนิลทดแทนแป้งสาลีในส่วนเปลือกของขนมเปี๊ยะกุหลาบ

The objectives of this research were to study the effect of the substitution of sinin rice flour to wheat flour in the crust of the flaky Chinese pastry (Kha-Nom Pia Kularb) on the physical quality the chemical composition and the consumer acceptance of the developed product. The ratios of sinin rice flour substituted for wheat flour (w/w) at 0:100 (control) 10:90 20:80 30:70 and 40:60 were studied. The results showed that increasing substitution levels caused darker purple lower cohesiveness and more difficult for shaping. Additional the higher level of substitution the more decreased of product’s size specific volume and lightness (L*) of crust and filling. According to the texture profile analysis when the ratio of sinin rice flour in the product increased the hardness springiness and cohesiveness of the product decreased while the chewiness increased. Sensory quality evaluated with 9-point hedonic scale by 55 panelists. The crust of product which was formulated using a ratio of sinin rice flour: wheat flour at 20:80 had liking score higher than the others with moderate liking score. Analysis of chemical compositions (100 g product) showed that the contents of moisture protein fat ash carbohydrate and dietary fiber as 16.37 7.09 26.30 0.62 49.62 and 2.27 g respectively. The total calorie was calculated as 463..54 Kcal/100 g. Furthermore this product provided anthocyanin 6.5 mg/100g (dry basis). Moreover consumer acceptance test with 120 consumers revealed that the overall liking of this product was like highly and 98.0% of consumers accept it besides 96.7% of them decided to buy it.

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ความต้องการเป็นผู้ประกอบการด้านคหกรรมศาสตร์ของนักศึกษาปริญญาตรีชั้นปีที่ 4 หลักสูตรคหกรรมศาสตรบัณฑิต คณะเทคโนโลยีคหกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
ความต้องการเป็นผู้ประกอบการด้านคหกรรมศาสตร์ของนักศึกษาปริญญาตรีชั้นปีที่ 4 หลักสูตรคหกรรมศาสตรบัณฑิต คณะเทคโนโลยีคหกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร

The purpose of this study was studied the need to be entrepreneur of Home Economics and compared the difference between the need to be entrepreneur of Home Economics program on Fourth-years undergraduate Students in Faculty of Home Economics Technology at Rajamangala University of Technology Phra Nakhon and personal factor. The sampling groups were fourth-years undergraduate students those were studying in first semester of Academic Year 2017 of 150 people with simple quota sampling. The use of tool was a questionnaire. The data analyses were used to percentage value average standard deviation t-test and F-test. The results of research were found on Fourth-years Undergraduate Students in Faculty of Home Economics Technology at Rajamangala University of Technology PhraNakhon they had the need to be entrepreneur of home economics program there were generally in high level as an average of 4. 06. There were considered as aspects found that the need of power was in high level as an average of 3. 86 the need of affiliation was in high level as an average of 4. 14 and the need of achievement was in high level as an average of 4. 19. The different comparison between the need to be entrepreneur of Home Economics on undergraduate students with classifiable as gender and parent’s occupation or guardian that had statistically significant difference at 0.05. The studied major program of generalization on every aspect was not difference. The experiences of work during the study were not difference of the need of power and the need of achievement and the need of affiliation was statistically significant difference at 0.05.

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