จำนวน Repository ( 80 )

การศึกษากระบวนการถ่ายทอดเทคโนโลยีการผลิตปุ่บอินทรีย์อัดเม็ดจากวัสดุท้องถิ่นของชุมชน
การศึกษากระบวนการถ่ายทอดเทคโนโลยีการผลิตปุ่บอินทรีย์อัดเม็ดจากวัสดุท้องถิ่นของชุมชน

The main objective of this articipatory research was to study technology ransfer process for producing granule organic fertilizer in Nongkrathum community using qualitative and semi-experimental methodology. The main instruments consisted of interview questionnaire and training. The samples and key informants were farmers and technology instructors. Data analysis and synthesis involved content and inductive analysis fundamental statistical analysis and Wilcoxon Sign-Rank test. Results showed that the technology transfer process was divided into three stages: 1) Knowledge and persuasion stage 2) Decision stage and 3) Implementation stage which included 2 training sessions. Only eight of farmers could participate in both training sessions. The total mean scores of satisfaction in technology were at moderate level ( =3.28) before training and very high level ( =4.25) after training. Regarding expectation of utilizing the technology before training 62.5% of farmers had high expectation. However 87.5% of the farmers had a very high expectation after training. Comparison of expectations before and after training showed significant differences at the level of .05.

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การวิจัยด้านวัสดุปูนฉาบที่เป็นมิตรต่อสิ่งแวดล้อม
การวิจัยด้านวัสดุปูนฉาบที่เป็นมิตรต่อสิ่งแวดล้อม

This research studies the potential for using waste ash from industrial and agricultural by-products as a plastering material. This paper presents a study of the water requirement compressive strength flexural strength normal consistency setting time and air content of plastering material containing classified fly ash (FA) and ground rice husk ash (RHA). Fine fly ash and fine rice husk ash have a high potential to be used as a good pozzolanic material. The use of finer pozzolan results in a stronger and denser mortar which is due to better Q!spersion and filling effect as well as an increase in the pozzolanic reaction. Fine fly ash and fine rice husk ash can be incorporated into mortar as replacement of the mortar mix cement for the plastering. Mortar mix cement containing 20% fine fly ash and fine rice husk ash can be used to make plastering materials.

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การพัฒนาวัสดุอาหารจากวัสดุเหลือทิ้งทางการเกษตรเพื่อการประหยัดพลังงานและลดการถ่ายเทความร้อนเข้าสู่อาคาร
การพัฒนาวัสดุอาหารจากวัสดุเหลือทิ้งทางการเกษตรเพื่อการประหยัดพลังงานและลดการถ่ายเทความร้อนเข้าสู่อาคาร

The objective of this research is to study the implementing the agricultural residue to the design of outdoor paving block for lowering the building temperature. The base layer admixture (layer no.1) is selected from cement type1: quarry dust: rice husk: rice straw: water ratios equal to 1: 3: 0: 0: 0.3 1: 1: 0: 1: 0.5 1: 1. 0.25: 0.75: 0.5 1: 1: 0.5: 0.5: 0.5 1: 1: 0.75: 0.25: 0.5 and 1: 1: 1: 0: 0.5 by weight. The surface layer admixture (layer no.2) is white silica cement: yellow stone chip no.4: water equals to 1: 4: 0.3 by weight. The exterior floor-covering blocks were tested following density testing water absorption testing compressive testing and surface temperature testing compare with laterite sandstone paving concrete block marble and granite. Resulting the best ratio of cement type1: quarry dust: rice husk: rice straw: water is 1: 1: 0.75: 0.25: 0.5 that has properties at 28 days following 1939.43 kg/m of density 14.97 % of water absorption 284.69 ksc of compressive strength and lower than other paving blocks around 3 – 13 degrees Celsius of surface temperature

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Creating and Evaluating the Effectiveness of Computer Assisted Instruction Program Subject Engineering Materials Chapter 3-6.
Creating and Evaluating the Effectiveness of Computer Assisted Instruction Program Subject Engineering Materials Chapter 3-6.

The purposes of the research were to create and efficiency validation of computer Assisted for the courses of practiced to reading Creating and Evaluating the Effectiveness of Computer Assisted Instruction Program Subject Engineering Materials Chapter 3-6 based standard and analyses the leaning achievement of the student after by using computer assisted instruction . The subjects in the study were 20. Diploma students enrolled in Rajamangala University of Technology Phra Nakhon. The Researcher using the experiment by let the students do until test before class And then study by using computer assisted instruction focused on practiced to basic turning . After that let students do the unit test again at the class and calculate to find out the efficiency of the computer assisted instruction. And analyzed the learning achievement of students after study. The research result revealed that the efficiency of the computer assisted Instruction was efficient in standard Moreover after learning achievement at significant level of 0.05.

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