จำนวน Repository ( 3611 )

การออกแบบและพัฒนาหุ่นทดสอบการชนรถจักรยานยนต์
การออกแบบและพัฒนาหุ่นทดสอบการชนรถจักรยานยนต์

The purpose of this research is to design and develop dummy (anthropometric test dummy) for motorcycle frontal collision test. The conceptual design of dummy is male aging between 25-55 years old 6 pieces of rib and deformable 76.2 mm. In order to performance test it was classified into 2 testing by static testing and dynamic testing. For static testing the energy absorption behavior between force and deflection or “ static curves” is determined. While dynamic testing is considered to the energy absorption behavior between forces and several velocities or dynamic forcedeformation curves impact acceleration impact force on sternum and injury severity with the relationship of viscous in velocity function. The results of the energy absorption behavior on chest of dummy from static testing the tendency of chest deflection is relatively low during the initial force and suddenly increasing when rise to the critical point. This behavior is similar to the energy absorption of the human chest. Therefore the design features of this test dummy can reflect behavior that is close to the human anatomy. In case of dynamic testing it is discovered the ability of the dummy testing to absorb up to 560 J impact acceleration 3 8 . 4 3 g impact force on sternum 5 . 0 9 4 kN. The viscous in velocity function is 0 . 8 2 5 m/ s which compared to injury severity at AIS3+ ( or higher than serious injury) . Therefore the dummy design in this research project corresponds to the collision test of a motorcycle.

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การลดการดูดซับน้ำมันในผลิตภัณฑ์แห้วทอดด้วยเทคโนโลยีสนามไฟฟ้า
การลดการดูดซับน้ำมันในผลิตภัณฑ์แห้วทอดด้วยเทคโนโลยีสนามไฟฟ้า

This research is studying of an electric field combine with a frying process in a Chinese water chestnut product for reducing oil absorb. An electric field that is used in an experiment will have a stress from 1-3 kV/cm. This will be generated by using a direct current high Voltage from 1066 to 3200 V. which is distributed to an electrode in an uniform and non-uniform of an electric field. This will have a dielectric barrier discharge. There is an analysis for finding a relationship of a moisture on absorbing oil of a Chinese water chestnut fried product due to a moisture has an effect on absorbing oil directly. From an experimental result this is found that the best electric field stress which will have an effect on reducing a moisture of a Chinese water chestnut is an non-uniform electric field form that is created from a direct current high voltage at 3200 V. and this will have an electric field stress at 3 kV/cm. This will have an average of a difference of a moisture at 0.6 g. This will select to use a direct current non-uniform electric field at 3 kV/cm. In an experiment combine with a fried process in a Chinese water chestnuts fried product this is done for reducing of absorbing oil. By this will fry at the temperature of 180๐C for 5 minutes. This is found that this can reduce an absorbing of oil best at 17.93% when this has compared to a Chinese water chestnuts fried that hasn’t passed an electric field.

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การพัฒนาผลิตภัณฑ์อาหารจากปลายข้าวไรสเบอร์รี่เพื่อผู้สูงอายุสู่เชิงพาณิชย์
การพัฒนาผลิตภัณฑ์อาหารจากปลายข้าวไรสเบอร์รี่เพื่อผู้สูงอายุสู่เชิงพาณิชย์

From the development of broken-milled rice berry for the elderly to commercial overall it was found that there are 4 types of products that the elderly accept included 1.Ready to consume broken-milled rice berry with fried mackerel with shrimp paste sauce. 2. Ready to consume rich ingredient rice berry grains. 3. Ready to consume Stir died broken-milled rice berry with hot yellow curry paste. and 4.broken-milled rice berry burger. Found that the consumer rated the features in terms of color smell texture taste and the allover liking is very much to the most. The consumers gives the score of the product likelihood score 3 is highest. Nutrition studies of all four products which are 1.Ready to consume broken-milled rice berry with fried mackerel with shrimp paste sauce. 2. Ready to consume rich ingredient rice berry grains. 3. Ready to consume Stir died broken-milled rice berry with hot yellow curry paste. and 4.broken-milled rice berry burger found that: all four products are healthful and provide nutrients including essential and beneficial vitamins for elderly whether it be vitamin A D B12 K calcium Thymine Niacin phosphorus etc. Which these nutrients and vitamins cannot be synthesized by the body itself also inhibits the deterioration of the organs of the body and prevents various diseases that commonly occur in the elderly. And from microbiological examination for storage study by containing all four products in an opaque package with a list and can withstand over 110 degrees Celsius storage by temperature control does not exceed four degree Celsius for seven days. The results that within seven days there are no microorganisms yeast and mold have been found in four kinds of products which shows that storage by temperature control does not exceed four degree Celsius can be stored without harm to the consumers.

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การออกแบบและพัฒนาชุดขับเคลื่อนในการทดสอบการชนรถจักรยานยนต์
การออกแบบและพัฒนาชุดขับเคลื่อนในการทดสอบการชนรถจักรยานยนต์

A design and development of powertrain module crash test using with the motorcycle crash test is aim to create a special tool for automotive assessment and safety engineering based on the realistic test. In order to main system of power module tester is consisting of powertrain system using electrical motor transferring system using chains and gears and control direction system using dual rails respectively. Based on powertrain module tester performance crashing speed relative angle between target and distance before crash are regarded. Nevertheless the result of testing performance was conducted to statistic hypothesis test by Mean Absolute Deviation: MAD Standard Deviation: SD Mean Square Error: MSE Mean Absolute Percent Error: MAPE and Root Mean Square Error: RMSE. The results of this approach discovered that the crashing speed was the highest error with 96% and the lowest was distance before crash. Furthermore it was corresponding to the statistic hypothesis test. However the result of the error was influence of the rails distance which limit by funding. In case of crash energy the mean of energy was appeared on 10.978 J. Whereas the tendency of variable was similar to polynomial equation.

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แอปพลิเคชันแชทบอทเพื่อการส่งเสริมการท่องเที่ยวเชิงเกษตรและวัฒนธรรม
แอปพลิเคชันแชทบอทเพื่อการส่งเสริมการท่องเที่ยวเชิงเกษตรและวัฒนธรรม

The Chabot application aims to promote Ecotourism in Bang Phae District Ratchaburi. The application has been developed by modern information technologies such as Artificial Intelligence (AI) and Natural Language Processing (NLP) via Dialogflow program and LINE application. The application consists of three main components: User interface Entities and Fulfillment engine and Intent. A usability test was conducted to evaluate the user experience in terms of effectiveness efficiency and satisfaction with which participants perform tasks when using the application. Consequently the participants were asked to complete the survey. The result shows that the overall user satisfaction score remains high (x̅ = 3.80). However the ability to communicate effectively scored lowest (x̅ = 3.66)

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