จำนวน Repository ( 71 )

เก้าอี้ปรับระดับสำหรับจักรอุตสาหกรรม
เก้าอี้ปรับระดับสำหรับจักรอุตสาหกรรม

The purpose of this project was to develop a chair for industrial sewing machines to suit the physiology of industrial machine users. And to study the satisfaction of industrial sewing machine users with adjustable chairs. The representative sample was student in Industrial Textile and Fashion Design at RMUTP as 40 samples. By allowing the sample group to sat on the sewing chair for the industrial machine and evaluate it by questionnaire the satisfaction with the use of the adjustable chair for the industrial machine. Statistics were usedfrequency percentage mean and standard deviation. The results of the study showed that the satisfaction assessment that affected the adjustable Industrial sewing machine chair. The most useful aspect was the adjustable chair which could be move to as scored as an average of 4. 13 at a high level. The safety of usage is average 3. 98 at a high level. The highest strength was durability and strength while using with an average of 4.2 in a high level. The highest material aspect was that the strong structure with an average of 4. 13 at a high level. The most beautiful aspect was the color of the adjustable chair which was beautiful and suitable with an average of 3.95 at a high level. And the overall summary of satisfaction was 4. 15 at a high level. Based on the research results using an industrial sewing machine table with a height of 73 cm and a 3 level adjustable chair was level 1 height 45 cm level 2 height 48 cm level 3 height 51 cm. It could be conclude that the level 1 chair was suitable for users with a height of 145-153 cm. The level 2 chair was suitable for users with a height of 154- 161 cm and a level 3 chair suitable for users with a height of 162- 170 cm

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การศึกษาจุดศูนย์กลางมวลและสัดส่วนการเบรกที่ส่งผลกระทบต่อเสถียรภาพการบังคับยานยนต์ โครงการวิจัยย่อยที่ 1 เครื่องทดสอบจุดศูนย์กลางมวลสำหรับรถยนต์
การศึกษาจุดศูนย์กลางมวลและสัดส่วนการเบรกที่ส่งผลกระทบต่อเสถียรภาพการบังคับยานยนต์ โครงการวิจัยย่อยที่ 1 เครื่องทดสอบจุดศูนย์กลางมวลสำหรับรถยนต์

The aim of this research is to create the center of mass testing machine for vehicles with maximum mass 3000 kilograms. By the performance of this machine is able to determine the center of mass 3 axis by horizontal longitudinal and vertical. On the other hand the verities of mass from 50 to 100 kilograms and the several of weight distribution at horizontal and longitudinal are applied to the condition of testing for reasonable to the position of the center of mass. The result of research discovered to the performance of center of mass tester was activated following to test conditions. Furthermore the weight distribution at longitudinal was the highest effect to the horizontal center of mass. By the way the value of weight distribution at horizontal is more effects to the longitudinal center of mass. Moreover increasing of mass was impact to the vertical center of mass and it’s independent to the position of weight distribution.

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การออกแบบและพัฒนาจักรเย็บผ้าอุตสาหกรรมเพื่อการใช้งานสำหรับคนพิการ
การออกแบบและพัฒนาจักรเย็บผ้าอุตสาหกรรมเพื่อการใช้งานสำหรับคนพิการ

This research aims to design and development of Industrial sewing machines to use for people with disabilities. Including study of Efficiency and performance of the equipment the installed sewing to assist in the sewing machine for disabled legs Conducting experiments by the target audience disabled leg from accident and leg disability from birth must use a wheelchair. By the disabled been experimenting with industrial sewing machines. For disabled legs Sew aprons in the 2 weeks. The results showed. That sewn of aprons by industrial sewing machinesfor person of disabled legs Can be sewnusing time of sewing/piece in week 2 of disabled leg from accident. And leg disability from birth. Decrease 25.09 percent and 40.07. and the number of pieces that have increased of industrial from period use of sewing machines. The average satisfaction of the design and use of industrial sewing machines for person of disabled legs are highest levels of 4.5 and 4.6 respectively

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The development of ethanol fermentation of jackfruit wastes by a medium size distillation machine
The development of ethanol fermentation of jackfruit wastes by a medium size distillation machine

The development of ethanol fermentation of jackfruit wastes by a medium size distillation machine aimed to study and develop an ethanol fermentation method that gives optimal production of ethanol. In this research the ethanol production capability of 4 different groups of microorganisms including natural microbes microorganisms in stock rice fermented Saccharomyces cerevisiae EDV 492 and S. cerevisiae EC 118 is compared. The following procedure was implemented to allow the prescribed comparison: 1) microbes culturing (350 ml) for a total period of 20 days. Based on the study results all four groups of microorganism were capable of growing in the given culture medium which is sugar substrate. 2) Small sized fermentation (1 liter) for a total period of 4 days. From this second procedure it can be discovered that microorganism in stock rice fermented and S. cerevisiae EC 118 were highly efficient in producing sugar and ethanol 14% and 13% (v/v) respectively. 3) Develop small sized fermentation to a medium sized fermentation (20 liters) by fermenting natural microbes for a total period of 4 weeks until sugar is obtained. According to the study glucose must be added to increase the sugar level up to 25% Brix in order to provide sufficient substrate to allow ethanol production of the studied microorganisms. During ethanol fermentation process it can be found that microorganisms in stock rice fermented and S. cerevisiae EC 118 produced the highest amount of ethanol at 16% (v/v) within the period of 10 days and 8 days respectively. Hence according to this development of ethanol fermentation S. cerevisiae EC 118 is the most efficient microorganism in terms of ethanol fermentation of jackfruit wastes. In addition after the distillation of 99% ethanol it can also be found that both microorganisms in stock rice fermented and S. cerevisiae EC 118 produced 720 ml and 740 ml of ethanol respectively.

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การพัฒนาเครื่องย้อมสีเส้นด้ายผักตบชวาและวัสดุเสริมเพื่อพัฒนาวิสาหกิจขนาดกลางและขนาดย่อม
การพัฒนาเครื่องย้อมสีเส้นด้ายผักตบชวาและวัสดุเสริมเพื่อพัฒนาวิสาหกิจขนาดกลางและขนาดย่อม

Water Hyacinth Yarns and Their Transformed Materials Dyeing Machine for Developing Small and Medium-Sized Enterprises was a research project what an aim for producing a prototype dyeing machine. The machine was used at the small enterprise in Nakhon Prathom province. The dyeing machine was contributed by stainless steel. The outer dimension was 100 centimeters in height 130 centimeters in length and 90 centi-meters in width. The inner structure contains with perforate stainless steel drum. It had diameter as 80 centimeters with 90 centimeters length. The container capacity was 27 liters for the raw material as 10 kg of the dry Water Hyacinth Yarns or 5 kg of the dry Water Hyacinth roots. The machine was running test for reactive dyeing process at 80oC for 30 minutes. The machine was achieved for reduce time operation as 5 times and gas consumption as 2.38 times. The break-even point was 1.09 year and B/C as 2.22. Moreover it can solve the fuzzy yarns problem and the volatile smoke during the tradition dyeing. The knowledge was transferred to the stakeholders at the target area as “Chumchonjaksanpaktobchawha Bann klongnokkratum” enterprise in Nakhon Pra thom province. They were satisfied in this benefit in good to very good level.

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