Science Journal, Chandrakasem Rajabhat University

Editor's note

2025-12-23T16:25:13+07:00

The Science Journal of Chandrakasem Rajabhat University, Volume 35, Issue 2, July – December 2025.
This issue contains 8 research articles, all of which were reviewed by 3 expert reviewers.
The online version of the Science Journal of Chandrakasem Rajabhat University uses the ThaiJO 2.0 system and has an ISSN (Online) of 2697-4584, while the print version has an ISSN (Print) of 1685-0491. The journal is published twice a year (Issue 1: January – June and Issue 2: July – December). The Science Journal of Chandrakasem Rajabhat University publishes academic work in science from lecturers, researchers, academics, students, and interested individuals from higher education institutions and various organizations, including both research articles and scholarly articles. The editorial board of the Science Journal is committed to improving the journal's quality to prepare for higher TCI journal quality assessments in the future.
The journal's editorial board would like to thank all authors for their trust in submitting 8 articles (1 internal article and 7 external articles) for publication in Volume 35, Issue 2, July – December 2025. The editorial board also thanks all the reviewers who kindly dedicated their time to reviewing the quality of the articles and providing invaluable advice. Finally, we would like to thank all the team members involved in making the journal a complete and successful publication.

The Effect of Ladder Interval Training on Agility in Woman Futsal Case Study: Thailand National Sports University Sukhothai Campus

2024-08-26T11:02:09+07:00

This research aimed to study the effect of ladder interval training on agility in female futsal players at the National Sports University, Sukhothai Campus. The sample group used in the research was 20 female futsal players at
the National Sports University, Sukhothai Campus, divided into 2 groups: a control group trained in the normal futsal program and an experimental group trained in the normal futsal program combined with ladder interval training at 90-95 percent of maximum heart rate. There were 10 poses, 15 seconds per pose, 15 seconds rest period, 2 rounds per pose, totaling 20 rounds per day. The training was conducted 2 days per week, Monday and Thursday, for 8 weeks. The agility test was performed using the SEMO test and FAF’s Slalom test. The data were analyzed using statistics, mean, standard deviation, Dependent sample t-test, and Independent sample t-test. The results of
the research found that after 8 weeks of training, the experimental group had significantly better agility than before training. The control group did not have any differences. When comparing the experimental group with the control group after 8 weeks of training, the experimental group and the control group had significantly different agility at the 0.05 level. Therefore, it can be concluded that training in ladder movement to the rhythm of music can help develop agility and the relationship of the nervous system and muscles in futsal athletes.

Mutagenicity Study of Zanthoxylum myriacanthum Wall. ex Hook.f. Extract Using the Ames Test

2025-05-23T08:51:26+07:00

Makwan (Zanthoxylum myriacanthum Wall. ex Hook.f.) is a medicinal plant widely utilized in northern Thailand for both culinary and traditional medicine purposes. It exhibits various pharmacological properties, including antioxidant, anti-inflammatory, antibacterial, and antifungal activities, and has been developed into various products. However, safety information regarding Makwan extract remains limited. Therefore, this study investigated the mutagenicity of Makwan extract using the Ames test under conditions with and without S9 metabolic activation, employing four strains of Salmonella typhimurium (TA98, TA100, TA1535, TA1537) and one strain of Escherichia coli (WP2 uvrA). The results indicated that Makwan extract did not induce mutagenicity indicating a certain level of safety. Nevertheless, if Makwan extract is to be developed into pharmaceutical products, further in-depth safety studies are necessary to ensure greater safety and reliability.

Transforming Polyethylene Plastic Materials into the Design and Development of Fine Arts Products for the Chao Phu Pha Women's Community Enterprise

2025-03-24T09:02:01+07:00

This research was initiated to address the need for reusing waste materials, specifically polyethylene plastic netting, from the Chao Phu Pha Women's Community Enterprise. Polyethylene plastic materials were placed in an oven at 100-150°C for 1-10 minutes each. Following this, their ability to be formed into bas-relief, high-relief, and round relief shapes was tested. The experimental results indicated that the appropriate temperature for forming the workpiece is 110-120°C, with a processing time of 3-5 minutes. Bas-relief shapes can be effectively formed from polyethylene plastic materials using tile molds. This led to the design of a fine art product prototype to enhance the value of waste, and the suggestions include an example of creating such a product from bas-relief polyethylene material.

Outcome of a Rehabilitation Exercise Program for Patients Undergoing Total Knee Arthroplasty at King Narai Hospital

2025-05-20T10:25:45+07:00

Knee osteoarthritis patients often undergo total knee arthroplasty (TKA) and are typically discharged within 1-2 days after surgery—a short recovery period that may lead to complications such as pain and limited range of motion.
This study aimed to evaluate the rehabilitation outcomes following TKA in terms of range of motion, pain levels, and knee function. A single-group, repeated-measures quasi-experimental design was employed, involving 54 TKA patients at King Narai Hospital between April and September 2024. Data were collected using the Oxford Knee Score, Visual Analog Scale (VAS), and Universal Goniometer. Descriptive statistics and repeated-measures ANOVA were utilized for analysis. The average age of participants was 64.42 ± 7.45 years, with 88.89% being female. After surgery, knee flexion decreased from 96.79 ± 13.24° to 62.59 ± 9.10° during hospitalization but increased to 97.96 ± 10.07° at three months. Knee extension temporarily increased from 14.72 ± 8.76° to 27.12 ± 6.84° during hospitalization and then improved to 11.31 ± 6.1° at three months. Pain levels rose from 5.42 ± 1.63 to 5.77 ± 1.51 during hospitalization but significantly decreased to 1.87 ± 1.08 at three months. The Oxford Knee Score demonstrated significant improvement at all time points (p<.005), with the greatest improvement observed at three months post-surgery compared to baseline.

Efficiency of Bioextract from Urea Cow Manure and Goat Manure on the Growth and Quality of Brassica alboglabra L.H

2025-06-27T10:46:02+07:00

This study aimed to evaluate the effectiveness of different bio-fermented liquid fertilizers on the growth of Hong Kong kale (Brassica alboglabra) cultivated in pots. A Completely Randomized Design (CRD) was employed with four treatments: Treatment 1 (control, plain water), Treatment 2 (urea-based bio-fermented liquid fertilizer), Treatment 3 (cow manure-based bio-fermented liquid fertilizer), and Treatment 4 (goat manure-based bio-fermented liquid fertilizer). Each treatment was applied at 20 ml per 20 liters of water. The results indicated that Treatment 3, using cow manure-based fertilizer, produced the highest fresh weight with roots (21.25 grams) and shoot fresh weight (14.25 grams). Meanwhile, Treatment 2 resulted in the greatest number of leaves, averaging 9.96 leaves per plant. Treatment 4 exhibited the best canopy width and plant height, measuring 12.36 cm and 14.36 cm, respectively. In contrast, the control group (plain water) showed the lowest performance in all parameters, with an average of 8.19 leaves, a canopy width of 11.32 cm, a plant height of 12.32 cm, a fresh weight with roots of 15.90 grams, and a shoot fresh weight of 10.18 grams. Statistical analysis revealed that canopy width and plant height differed significantly among treatments (P<0.05), suggesting that the type of bio-fermented liquid fertilizer significantly influences certain growth traits of Hong Kong kale.

Effects of the Mixing Ratio of Wood and Plastic on Physical and Mechanical Properties of Wood-Plastic Composite Materials

2025-07-22T10:12:22+07:00

This research aims to develop a composite material made from HDPE plastic combined with either ground wood or sawdust to develop composite materials from waste materials. The raw materials used have particle sizes ranging from 0.2 to 0.7 millimetres and are mixed at ratios of 20 to 50 wt%. The mixture is then heated at 185°C for 20 minutes, followed by cooling for 40 minutes, depending on the type and ratio of the mixture. The physical and mechanical properties of the composites are then tested. The results of the relative density tests show that the density of the composite increases with a higher ratio of wood to plastic. Additionally, composites made with ground wood have a higher density than those made from sawdust at all wood-to-plastic ratios. The water absorption tests indicate that the water absorption of the composite ranges from 4.34 to 34.25%, increasing with the wood-to-plastic ratio. The tensile strength tests reveal that at a 20 wt% ratio, the composite containing sawdust achieves the highest average tensile strength of 16.70 MPa. The compressive strength tests of the composite do not show a clear trend with changing wood-to-plastic ratios, ranging from 13.83 to 16.67 MPa. The flexural strength tests indicate that the flexural strength of the composite decreases with an increasing wood-to-plastic ratio. When the composite plastic is molded into three types of prototype products: load-bearing products, indoor-use products, and outdoor-use products, it is found that the composite plastic is suitable for use in indoor and outdoor products. However, it is not yet highly suitable for use as a load-bearing material, and the mixing ratios or production processes may need to be adjusted for better suitability.

GradFace: Attendance Registration System Using Face Recognition for The Graduate School, Kasetsart University

2025-07-22T14:34:26+07:00

Traditional attendance methods at The Graduate School, Kasetsart University can be time-consuming and susceptible to errors, while barcode systems have hardware needs and are susceptible to impersonation. To address these issues, we propose GradFace, an automated attendance system utilizing computer vision. GradFace uses a Gradio interface, employs the YOLOv11n-face model for real-time face detection, and leverages AWS Rekognition for accurate face identification. The system supports indexing faces from images linked to existing data and facilitates live registration via webcam. Experimental deployment during university events demonstrated stable performance and accurate face recognition across varied conditions (e.g., glasses, hairstyles, image quality), and positive feedback regarding convenience from 273 attendees. While network dependency and hardware requirements were noted as areas for improvement, GradFace successfully streamlined the registration process, generating attendance records and timestamped images with a latency of 1-2 seconds. Future work aims to enhance scalability, improve data management, explore local recognition.

A Comparative Study on the Performance of Decentralized Multi-Agent Key Recovery Systems between IHADM-KRS and SSDM-KRS

2025-07-16T12:04:13+07:00

Managing the risks of secret keys from attacks or loss is a critical aspect of maintaining information security. The Key Recovery System (KRS) is a technology developed to mitigate such risks. This study aims to analyze and compare the performance of two types of Multiple Key Recovery Systems (M-KRS): SSDM-KRS and IHADM-KRS, focusing on three key processes: (1) creation of the Key Recovery Field (KRF), (2) key recovery in normal conditions, and (3) key recovery in scenarios where some Key Recovery Agents (KRAs) fail or are unavailable. The experiment simulated KRA operations ranging from 5 to 50 agents, with a minimum recovery threshold set at two agents. The performance evaluation of KRF creation revealed that SSDM-KRS outperformed IHADM-KRS in terms of processing speed due to its simpler structure, while IHADM-KRS demonstrated greater flexibility in KRA management and offered higher security. In normal recovery scenarios without KRA failures, both systems achieved comparable recovery times. However, in scenarios with KRA failures, IHADM-KRS maintained stable recovery performance and high security but required more time than SSDM-KRS, particularly as the number of KRAs increased. The findings indicate that selecting an appropriate key recovery system should align with performance requirements and security policies. Both systems were designed to resist KRA collusion and are robust against failures, thereby enhancing the overall security of the system.