This study was conducted to determine the effects of plant growth regulators on in vitro propagated plantlets and microrhizome inductions of Curcuma comosa Roxb. for an efficient development of plant regeneration. In vitro sprouted shoots (2 cm length) of C. comosa were incised in longitudinal section and subcultured on MS media supplemented with 3 mg/L BA for shoot multiplication and plant regeneration. Subsequently the regenerated plants were transferred to MS medium with various concentrations of plant growth regulators; BA (1 3 5 mg/L) kinetin (1 3 5 mg/L) and TDZ (0.5 1 1.5 mg/L). The result showed that MS medium supplemented with 3 mg/L BA was the most effective in shoot induction with the significantly maximum average number of 2.11 shoot buds per responding explant. Moreover MS medium supplemented with 1 mg/L BA produced the longest average of shoot bud explants (12.99 cm) while the basal MS medium induced the longest average of root multiplication (6.63 cm). Furthermore microrhizome induction was produced under in vitro conditions derived young shoot buds upon transfer to MS medium containing various combinations of 1 3 and 5 mg/L BA and 30 60 and 90 g/L sucrose concentrations. The optimum combination in the induction of significantly highest average length of both stem (18.32 cm) and root (7.52 cm) multiplication was obtained on MS basal medium supplemented with 1 mg/L BA and 30 g/L sucrose for 4 weeks. Although microrhizome formation was not produced by the different amount of BA and sucrose in induction medium starch accumulation was found at the base of the stem explants cultured on MS medium containing 60 and 90 g/L sucrose concentrations. Additionally in vitro propagated C. comosa plantlets through microrhizome induction were grown under greenhouse conditions for 4 weeks and further developed into normal plants resulting in successfully high survival rates of 66 – 100% in the cultivated C. comosa.

This study explored the dietary effect on manure characteristics and potential of biogas production from the manure of dairy cows feeding with pineapple peel as a roughage source. Three mid-lactation primiparous crossbred Holstein dairy cows which had an average body weight of 443.5±10.6 kg and average milk production of 9.6±0.3 kg/d were assigned with three different diet types including T1 T2 and T3. T1 was a control diet which consisted of a mixture of dry Pangola grass and commercial pellet (CL). Moreover T2 was a mixture of dry Pangola grass pineapple peel and CL while T3 was a mixture of pineapple peel and CL. Dairy cow manure was collected on the day 10th after feeding and anaerobic digestion of the dairy cow manure was operated with an HRT of 30 days. Results showed that all diet types gave similar manure characteristics of high organic matter and nitrogen. Average concentrations of TS and COD ranged from 82.59 to 85.78 g/L and 85.47 to 91.47 g/L respectively whereas TAN ranged from 1.54 to 1.67 g/L. However a higher pH of 7.50 was found for the manure of dairy cow fed with T1 while a lower pH of 6.50 was obtained with T3. Besides the highest methane yield of 0.20 m3 CH4/kg VSadded was obtained when using the manure of dairy cow fed with T1 as a substrate followed by T2 and T3 which found at 0.14 and 0.11 m3 CH4/kg VSadded respectively. This indicated the efficient potential of biogas production from the manure of dairy cows fed with pineapple peel which will improve sustainable utilization of agricultural wastes and waste produced from dairy cow farm in the future.

This research aimed to study the use of coarse aggregate obtained from removing old recycled asphalt pavement (RAP) in the production of the porous concrete paving block. Crushing and size separation of the coarse aggregate by using standard sieve size by selected the gradation size of the coarse aggregate that passed to sieve size 1/2” and retained on sieve size 3/8” and other that passed to sieve size 3/8” and retained on sieve size No.4 by mixing ratio 50 : 50 of the mass as replaced natural coarse aggregate. Portland cement quantity about 18% and 20% by weight of the aggregate. The water to cement ratio was 0.30 and 0.35 respectively. Compressive strength flexural strength and water permeability were investigated. The results showed that the cement content and water to cement ratio was influenced the strength properties and water permeability rate of the porous concrete paving block. The porous concrete paving block mixed with higher cement content (20%) had the compressive strength at the age of 28 days increased by 16-24% when compared with lower cement content (18%). On the other hand the water permeability rate decreased by 5.1-8.1%.

Research project on Factors influencing the performance of support personnel Faculty of Technology Rajamangala University of Technology Phra Nakhon The objective is to study the factors influencing the performance of support personnel. Faculty of Technology Rajamangala University of Technology Phra Nakhon Data collection tools include target audience satisfaction questionnaires. Analyze data using phonological statistics. The study found that Target audience 58 support personnel The Faculty of Technology Rajamangala University of Technology Phra Nakhon Phasat found that the majority of them are females aged 20-40 years. Personnel pay attention to operational factors. Overall there is a high level of satisfaction with the operational environment. Administration Operational progress and compensation and benefits Personnel pay attention to the level of performance. Overall there is a high level of operational satisfaction fairness transparency and operational compliance with the rules and regulations and the aspect of being able to successfully carry out the tasks assigned to them. The field is able to perform the assigned tasks with quality and efficiency. The side is able to perform the task correctly as assigned and the side has an understanding and can determine the guidelines for the operation. The side can perform the work completely and completely as assigned and the side can perform the work quickly and on time to a large extent.

This research aims 1) Study the achievements of online teaching in a new way normal of Faculty of Architecture and Design RMUTP 2) Design online teaching media in a new normal of Faculty of Architecture and Design RMUTP 3) Assessing the achievement of online teaching in a new normal of Faculty of Architecture and Design RMUTP from 62 third-year students in the furniture design course for teaching through online programs There is a method for conducting research by looking at each type of program information for online teaching interviewing and then analyzing it. to determine the appropriateness for use as an online teaching medium and the process of creating presentation media selected from 8 to 1 by interview form 3 Associate Dean for Academic Affairs and Research from the Faculty of Architecture and Design RMUTP and 62 students of online teaching achievements were assessed in a new normal with Rating Scale.The results showed that a Google Classroom and Google Meet is most suitable for teaching online. Classroom is available to anyone using Google Apps for Education a free suite of productivity tools including Gmail Docs Drive and more powered by Google Classroom Google Meet has the highest average (𝑥̅=5.00 SD=0.00) Comparing the pre-study test scores with the learning achievement scores of the sample group it was found that pre-test at 15.29 (48.92%) and post-test at 24.82 (80.33%) was satisfied of 62 the students of the Faculty of Architecture and Design RMUTP had a high level of satisfaction with the overall assessment the mean (𝑥̅=4.08 SD=0.50). The satisfaction with a high mean was the use of online learning media while the test mean (𝑥̅=4.40 SD=0.44) followed by online media and online learning. Furniture design subject mean (𝑥̅=4.17 SD=0.48) followed by learning achievement of online learning users mean (𝑥̅=3.92 SD=0.50) and followed by Use online media for lesson content. Furniture design subject average (𝑥̅=3.84 S.D.=0.58)