จำนวน Repository ( 2131 )

Creation of ‘macrame knotting’ bas-relief Illustrations book  for students with visual impairments
Creation of ‘macrame knotting’ bas-relief Illustrations book for students with visual impairments

This research aims to make a Bas-Relief book about Macreame tying for Career and Technology Level 2 for visual-impaired students of the Bangkok School for the Blind with standard efficiency of 80/80 and to study users’ satisfaction of the book. This sample in this study consisted of 10 blind students from the Bangkok School for the Blind who were purposively selected from level 2 (P.2 - P.6) in academic year 2555. This experimental research used a One - Short Case Study design. Instruments used in this research included Bas-Relief book observation and assessment skills to perform a visual relief and satisfaction survey. Statistics used for data analysis were Average ( ) Standard Deviation (S.D.) Percentage and Dependent t-test. It was found from the research that efficiency of Bas-Relief book was 87.93/95.76. Satisfaction with Bas-Relief book was high in every aspect ranking from the highest to the lowest as: content ( = 4.80 S.D. = .422) Braille character ( = 4.80 S.D. = .334) and material’s surface ( = 4.74 S.D. = .508).

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The development of wbi on computer assisted instruction course using problem-based learning and demonstration techniques
The development of wbi on computer assisted instruction course using problem-based learning and demonstration techniques

This experimental research had five objectives: 1) to develop Web-Based Instruction (WBI) on Computer Assisted Instruction Course Using Problem-Based Learning and Demonstration Technique; 2) to evaluate the efficiency of the developed WBI according to Meguigans’s standard; 3) to compare the students’ learning achievements by pre-test and post-test; 4) to evaluate the students’ practical work and 5) to measure the students’ satisfaction towards the WBI. The samples in this research selected by purposive sampling consisted of 24 under graduate students in Academic Year 2/2012 of Department of Computer Education Faculty of Technical Education King Mongkut’s University of Technology North Bangkok. The research tools consisted of six units of the WBI a student’s learning achievement test administered before and after learning with the WBI video demonstration and problem based questions. The statistic employed in this research were the Meguigans’s standard t-test mean and Standard Deviation. Research results showed that; 1) the efficiency of the developed WBI was 1.22 according to Meguigans’s standard; 2) the students effectiveness after using the WBI was significantly higher than before using it at .05; 3) the average score of the practical work was 88.68 higher than 80; 4) the students’ satisfactory was at a good level. In conclusion the developed WBI can be used for the target group properly.

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Effect of different colchicine concentrations on the morphology  of physic nut (jatropha curcas l.)
Effect of different colchicine concentrations on the morphology of physic nut (jatropha curcas l.)

Physic Nut (Jatropha curcas L.) was a narrow genetic based plant resulting in low productivity. Colchicine application was a mutation technique that could induce genetic variability for plant improvement. In this study the 24 hour soaked physic nut seeds and the 3 – day physic nut seedlings were treated with 0 0.05 0.15 and 0.20% of colchicine for 48 hours and there were soaked for 24 hours to induce polyploidy. The results showed that the survival rates were 67.15 and 93.93 % at the 0.05% of colchicine. DNA content in the survived seedlings was detected by flow cytometry. The number of tetraploid and mixoploid were increased in the 3-day seedlings treated with 0.05% of colchicine. The morphology characteristics at the first flowering stage were follows; the diploid had average height branch numbers spikelets per head ratio of male and female flowes leaf size (W x L) and stomata size (W x H) were 249.50 cm. 15.7 214.7 24.8 :1 14.8 x 13.2 cms and 7.88 x 50.25 micrometers respectively while the mutant had the average of 180.6 - 21.54 cm. 9.8 - 13.0 37.9 - 17.53 19.3 : 1 42.8 : 1 17.0 - 14.4 cms and 61.0 - 70.5 x 103.33 - 116.1 micrometers respectively. so The mutant had better characteristics but their fruits could not mature.

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Development of an automatic provision paper machine
Development of an automatic provision paper machine

These dissertation is discussed development of Automatic Provision Paper Machine. By apply suction roller in the paper provision paper of size A4 to as a set and suture package control by microcontroller AVR MEGA 1280. Which the machine has 8 layer each layer has 50 sheets use the time for provision 40 second per minute that 1 set has 8 sheets. From the results of the equipment. It have some problem form suction rollers system. May be caused equipment in each is different an size roller or stiffness of spring and errors. Sensor is detect camshaft at moving through the disturbance of the light surround area with too much ability to detect lower. Which the repair and amend it

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The reduction of organic compounds by using the biological reaction substance of the effluents from palm oil mill to produce singe cell protein
The reduction of organic compounds by using the biological reaction substance of the effluents from palm oil mill to produce singe cell protein

The objectives of this research were to study the reduction of organic compounds by the biological action substance of the effluents from palm oil mil to produce singe cell protein. The wastewater taken from the third pond of the wastewater treatment system which was already used for biogas production was found to have pH 6.5. The organic matter like COD (3679 mg/L) Oil& grease (133 mg/L) as well as the total solids and the minerals were much lower than those of the decanter effluent. The reduction of organic compounds by using the biological action by Candida tropicalis TISTR 5146 5045 and C. lipolytica TISTR 5151 were studied. The results indicated that C. tropicalis TISTR 5146 which was cultivated in palm oil mill at initial pH 5.5 and diluted with water to the ratios of 1:5 at agitation on the shaker of 150 rpm at room temperature gave the highest yield of biomass of 2.52 g/L and COD reduction of 94.38 % after 3 days of cultivation. The optimal condition for C. tropicalis TISTR 5146 cultivation was that the ratio of palm oil mill effluent to diluted water was 1:5 containing 10 g/l glucose and 10 g/l yeast extract at initial medium pH 5.5 in the shaking flask of 150 rpm at room temperature. The highest biomass obtained was 12.53 g/L while the cell consisted of protein and fat for 43.12 % and 0.34 % respectively.

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