Journal of Science and Technology Kasetsart University

Evaluation of Deficit Irrigation on Sweet Corn Production

2024-12-26T15:05:04+07:00

This study sets out to assess the productivity of sweet corn grown under deficit irrigation. Over the course of two growing seasons at the National Corn and Sorghum Research Center, the experiment employed the completely randomized design (CRD) method with 4 treatments of soil water holding capacity (I100: Full irrigation; I85: 15% shortfall, I70: 30% deficit; and I55: 45% deficit). The findings indicated that inadequate irrigation had an impact on sweet corn yields during the two growth seasons. The treatments I100 yielded the highest amounts of sweet corn (1,620 and 1,902 kg/rai), while the I85 treatments of applying less water produced a lower yield of sweet corn. With the I100 approach, however, there was no statistical difference. Still, another way to grow sweet corn in places with little irrigation water is the I70 approach. The average yield of sweet corn fell at 22.9%, but the variety's characteristics (ear size and sweetness) kept the crop's quality within acceptable bounds.

Integrating Horizons: A Holistic View of Predictive Maintenance in Aviation Maintenance Practices

2024-12-26T15:12:55+07:00

This comprehensive literature review explores the integration of predictive maintenance (PdM) within the aviation industry, emphasizing the transformative role of advanced technologies such as artificial intelligence, the Internet of Things, and digital twins. By analyzing peer-reviewed research from the past decade, the review highlights the significant benefits of PdM, including enhanced operational efficiency, improved safety, and substantial economic advantages through optimized maintenance schedules and reduced aircraft downtime. Key findings reveal the adoption of innovative hybrid machine learning approaches, such as integrating natural language processing with ensemble learning. Technological advancements enable accurate failure predictions and proactive maintenance interventions, extending component lifespans and preventing unscheduled downtimes. The economic impact of PdM is profound, promising significant cost savings by reducing unscheduled maintenance and optimizing spare parts inventory management. However, there is a noted need for comprehensive cost-benefit analyses to fully quantify these economic impacts across all aircraft components. The review also identifies substantial challenges in PdM implementation, such as high initial investment costs, regulatory complexities, and the necessity for workforce re-skilling. Policy recommendations include updating regulatory frameworks to support PdM technology integration and fostering a culture of continual improvement and innovation within organizations. The paper underscores the importance of strategic organizational strategies, including staff training in PdM technologies and data analytics, to overcome these barriers. In conclusion, the review emphasizes the undeniable potential of PdM to revolutionize aviation maintenance by creating a streamlined, data-driven maintenance regime. It calls for a coherent implementation strategy, standardized data practices, and organizational support to harness the full benefits of PdM. Future research directions include deeper cost-benefit analyses, strategies for managing resistance to change, and developing standardized methodologies for economic performance evaluation, guiding both academia and industry towards advanced PdM practices.

A Study on Factors and Select the Transportation Service Providers: A Case Study of Company

2024-12-26T15:21:29+07:00

This research aims to investigate the factors influencing the selection of transportation service providers and prioritize these factors based on decision-making criteria. The study also aims to select the most suitable transportation service provider for a case study company. The research methodology involves identifying the factors influencing transportation service provider selection, considering both primary and secondary factors. A questionnaire was developed and validated using the Index of Objective Congruence (IOC), which was evaluated by three experts in transportation systems. An IOC value of 0.5 or higher was considered acceptable. The Analytic Hierarchy Process (AHP) was employed to compare and score the factors in pairs, determining their relative importance. Four primary factors and 22 secondary factors were identified. Data was collected from three decision-makers involved in selecting transportation companies, and the consistency of the data was verified. The results revealed the following relative importance of the primary factors: 1) Delivery aspects (42.94%); 2) Service/product aspects (27.59%); 3) Reliability aspects (21.57%), and 4) Price aspects (7.90%). The top three most important secondary factors were: 1) Condition of goods after delivery to customers (14.30%); 2) Compliance with requirements (13.55%), and 3) Ability to transport special care goods (9.68%). Finally, the most suitable transportation service provider among three alternative options was selected. Company Z was identified as the most suitable provider with a relative importance of 40.29%.

Detection of Latent Fingerprints and Palmprints on Latex Gloves Using Chemical Methods

2024-12-26T15:30:07+07:00

The purpose of this research was to find suitable conditions for collecting latent fingerprints and palmprints on rubber gloves by studying three factors: types of rubber gloves (blue and purple nitrile gloves and white natural gloves); storage periods (immediate, 12, 24, 48, and 72 hours); and chemical method (wet powder, ninhydrin, indanedione/Zn, and cyanoacrylate). In addition, the surface of the rubber gloves was studied. and Latent fingerprints and palmprints were compared for identification purposes. The results of the study showed that the three types of rubber gloves that could be collected using the wet powder method at the periods of the immediate and 12 hours periods show the best latent fingerprints and palmprints. From the study of the surfaces of the fingers and palms of the three types of rubber gloves, comparing before and after the experiment using scanning electron microscopy (SEM), it was found that the wet powder method did not damage the surface of the rubber gloves. moreover, for the comparison the latent fingerprints and palmprints collected with the tenprints and the right and left palms of the researchers and volunteers using the forensic compared software (FCS) program found that minutiae points could be used. Verification could be used to confirm the identity of the person.

Effect of Different Nitrogenous Fertilizers on Growth and Yield of Cassava Planted in Kamphaeng Saen Soil Series

2024-12-26T10:04:58+07:00

The effect of different nitrogen fertilizers on growth and yield of cassava (var. Huay Bong 60) planted in Kamphaeng Saen soil series was investigated. The experimental design was arranged in Randomized Complete Block (RCBD) with 3 replications of 7 treatments. The results showed that the application of controlled release chemical fertilizer (CRCF), of 50 kg/rai in combination with chemical fertilizer (CF) grade 0-46-0 and 0-0-60 of 4 and 4 kgP₂O₅ and K₂O per rai, respectively (CRCF₅₀,T₇) effected on the highest of plant height and leaf greenness (SPAD unit) which were not different from the application of ammonium sulfate (AS) of 95.24 kg/rai in combination with CF grade 0-46-0 and 0-0-60 of 4 and 4 kgP₂O₅ and K₂O per rai, respectively (AS_95.24, T₅) and the application of urea (U) of 43.48 kg/rai in combination with CF grade 0-46-0 and 0-0-60 of 4 and 4 kgP₂O₅ and K₂O per rai, respectively (U_43.48, T₆). While, all treatments applied with nitrogen fertilizers a insignificantly effected on fresh root yield, average weight/root, root width and root length, starch contents, starch yield, concentrations of total N, P and K in fresh root but significantly different when comparing with the control treatment that has resulted in the lowest fresh root yield, average weight/root, root width and root length, starch contents, starch yield, concentrations of total N, P and K in fresh root. Furthermore, the application of CRCF provided the growth, yield, yield components and concentration of N, P and K in fresh root better than the application of quick release fertilizer.

Screening and Yield Trial of Promising Durum Wheat Lines in Chiang Mai, Mae Hong Son and Nan Provinces

2024-12-26T14:05:13+07:00

Durum wheat is a wheat type used to process into semolina flour, however there is no wheat varieties promoted for this practical use in Thailand. The objective of this study was to screen durum wheat promising lines providing high yield and stability in the northern region of Thailand. The evaluation and screening of 42 promising lines had been done during 2020/2021, the 9 promising lines with good agronomic characteristics and high yield, including MHSDWS07019, MHSDWS07020, MHSDWS07021, MHSDWS07024, MHSDWS07025, MHSDWS07026, MHSDWS07027, MHSDWS07028 and SMGDWS18005. The intra-station yield trial had been done during 2021/2022 at Samoeng Rice Research Center, Samoeng District, Chiang Mai Province. The 9 promising lines at 800-1,000 g/2.4 sq.m. And the inter-station yield trial had been done during 2022/2023, 3 locations at 1) Samoeng Rice Research Center, Samoeng District, Chiang Mai Province (SMG) 2) Dong Lak Muen Experimental rice and cereal crops, Fang District, Chiang Mai Province (DLM) and 3) Bo Kluea Royal Project Development Project, Bo Kluea District, Nan Province (BKL). The results showed that planting durum wheat at SMG and DLM promotes growth of the MHSDWS07026 and MHSDWS07027, And the highest yield component.
The BKL of the MHSDWS07020 in to growth and the highest yield component. Moreover, the durum wheat promising lines of MHSDWS07027 and MHSDWS07026 were the highest average yield from 3 areas and the most stability at 339 and 332 kg/rai, respectively. Grown in a general environment like this study.