จำนวน Repository ( 291 )

เฮลิคอปเตอร์แบบ 4 แกน (Con Rotor)
เฮลิคอปเตอร์แบบ 4 แกน (Con Rotor)

Four core helicopter project (Con Rotor) that coordinates with a GPS unit with a survey prepared for aerial photography and GPS positioning system with GPS and the flight logs with GPS. Making helicopter 4 cores with GPS coordinates tell this from a detailed study of helicopters and other equipment Axis 4 (Con Rotor) study of a GPS system microcontroller. By applying a helicopter and make a 3-core microcontroller. The result of doing this project is. Four core helicopter with GPS coordinates that can shoot air and signaling devices to the receiver and lock position without flying via remote control.

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ระบบจัดการการใช้อินเทอร์เน็ตด้วยโพรโทคอลเรเดียส
ระบบจัดการการใช้อินเทอร์เน็ตด้วยโพรโทคอลเรเดียส

The purpose of this research was to design and develop an internet management system using radius protocol for a school. The system was developed by PHP language MySQL database and radius protocol. It allowed an administrator to grant users permission to access the internet manage their accounts check their status and record their usage history in files in addition to teachers being able to limit the use of the internet in their classrooms. The system evaluation process was divided into two parts. First the efficiency of the system was evaluated by the administrator and it was found that the system can work as required. Second the system performance was evaluated in terms of network security functional requirement and processing speed by the completion of a questionnaire by five experts. User-friendliness was evaluated by the completion of a questionnaire by 115 teachers and students. Results showed that the average efficiency was 4.22 with a standard deviation of 0.07. It can be concluded that the effectiveness of the developed system was at a high level and its application was beneficial for other organizations

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การประยุกต์ใช้พลังงานแสงอาทิตย์ในพื้นที่ชนบท
การประยุกต์ใช้พลังงานแสงอาทิตย์ในพื้นที่ชนบท

This research is studied the design and contract the electronic generator from Solar cell integrated with electrical at home in the rural area. The design is combined between solar cell and electrical at home. The mutation from solar cell to electric power is the clean and green energy when it is compared with normal processes to generate the electric power. Additionally it’s also less impacts to environment and sustainable. In the normal architectural model of solar cell generator the engineer will design the power storage at its battery for one day using with condition of the solar cells need to receive the sun light in the whole day. If some days the cell cannot get enough sunlight when it’s bad weather the battery also cannot supply power as in its usual. With this new innovative energy supply integration between solar cell and electrical at home it benefits to the energy consumers to get the energy for whole day continually and also reduce the pollution from the normal process electric generation.

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A study on activated carbon from bagasse and charcoal adsorption efficiency in decolorization and COD of sugar factory wastewater from rajburi sugar co., ltd
A study on activated carbon from bagasse and charcoal adsorption efficiency in decolorization and COD of sugar factory wastewater from rajburi sugar co., ltd

The current time activated Carbon spaciously have been used in the process of wastewater Treatment and Air Pollution Treatment because of it can absorb various materials such as colors smells and organic materials both in the wastewater or air pollution In this research the researcher interest to study the activated carbon from bagasse as become more quantity in the country to use for reducing the pollution of wastewater at Sugar Company and recycling the leaving materials. This study is the Experimental Research being divided into 2 kinds of charcoal: 1) synthesizing activated carbon from bagasse 2) charcoal. The three contents of waste water: 10 50 and 100 percent are used for analyzing and testing at three periods of time: 30 60 and 90 minutes. The example of the wastewater were analyzed the color and COD. The using activated carbon from the bagasse with the content of wastewater at 10% shown that it could not absorb the color differently at every periods of time the color remained lower than 5 Pt-Co and it could reduce more COD at the more periods of time. At the content of waste water 50% shown that the more using time for absorbing the color the quality of absorbing become lower (10 15 and 20 Pt-Co) but it became more reduce COD while the absorbing the color at the content of waste water 100% found that when used the more time quality of absorbing the color became lower (25 30 and 35) while the quality of reducing the COD became increase. The charcoal at the content of wastewater 10% its’ absorbing color was 5 Pt-Co at the all periods of time but the result of reducing the COD was increase: 4300 4000 and 3800 respectively. As the testing the content of waste water at 50% shown that the more using the time its’ quality of absorbing the color became lower while the quality of reducing the COD became decrease: 7330 6500 and 6030 respectively. As studying the content of waste water 100% found that the more using the time for treatment the waste water its’ quality became decrease but it could more reduced COD. The comparison between the activated carbon from bagasse and the charcoal shown that the activated carbon from bagasse can absorb the color better than the charcoal at 0.25 Pt-Co and could more reduce COD than the charcoal 43.5 % by average at the content of waste water 10%. While the waste water 50% the activated carbon from bagasse could more absorb the color than the charcoal at 55% and can more reduced the COD than the charcoal 19.34% averagely. For the content of waste water 100 % the activate carbon from bagasse could more absorb the color than the charcoal at 54.17% and reduced the COD 7.83% by averaging.

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