This research aims to evaluate the efficiency of nano-type oxygen diffusers at different pump power levels in sea bass nursery ponds. The study examines how varying power levels affect dissolved oxygen distribution in the water and their impact on the health, growth, and survival rates of sea bass. The findings indicate that pump power levels influence dissolved oxygen concentration, with the optimal power level improving oxygen distribution in the pond. This enhancement leads to higher survival and growth rates for sea bass. The results provide valuable insights for selecting appropriate oxygen diffusers and pump power levels in fish nursery pond systems. The experiment consisted of two conditions: 1. Without fish – This condition assessed the oxygenation capacity, oxygen transfer coefficient, oxygen transfer rate, and oxygen transfer efficiency of pumps at three different power levels. 2. With fish – This condition evaluated whether the oxygen supplied by pumps at three power levels was sufficient, based on the growth rate and survival rate of the fish in the pond. Blood counts were conducted to assess the immune response. The collected data were statistically analyzed using the RCBD method for the condition without fish and the CRD method for the condition with fish, employing SPSS software.
ประเทศไทยได้ประสบปัญหาในเรื่องของภัยธรรมชาติ ปัญหาการเปลี่ยนเเปลงสภาพภูมิอากาศ โดยเฉพาะปัญหาอุทกภัยและภัยเเล้ง สภาพอากาศแปรปรวน และยังมีปัญหาในด้านการทำประมงที่จำกัดดังนั้นการทำฟาร์มเลี้ยงสัตว์น้ำเเบบลดความเสี่ยงจึงเป็นทางออกในการรักษาความมั่นคงของอาหาร ในปัจจุบันปลาที่สามารถปรับตัวให้อยู่ในน้ำจืดหรือน้ำกร่อยได้และเป็นที่นิยมในการรับประทานได้เเก่ปลากะพงขาว เนื่องจากเลี้ยงง่ายโตเร็ว เนื้อปลารสชาติดี และมีราคาสูงพอคุ้มค่ากับการลงทุน โดยศึกษาจากการใช้อุปกรณ์สร้างออกซิเจนชนิดหัวนาโนบับเบิ้ลเพื่อศึกษาว่าอุปกรณ์ให้ออกซิเจนชนิดหัวนาโนกับขนาดกำลังปั๊มน้ำที่ต่างกันขนาดใดมีความสามารถทำให้ออกซิเจนละลายในน้ำดีมากที่สุด อัตราการถ่ายเทออกซิเจนในน้ำ ค่าสัมประสิทธิ์ออกซิเจนที่ละลายในน้ำได้มีประสิทธิภาพมากที่สุด วัดความเจริญเติบโต อัตรารอดของปลากะพงและภูมิคุ้มกันของปลากะพง ประสิทธิภาพในการให้ ออกซิเจน ในบ่ออนุบาลปลากะพงได้ดีที่สุดและมีผลกระทบน้อยมากที่สุด
คณะวิศวกรรมศาสตร์
This study focuses on the use of ceramic tile powder as a cement replacement material in concrete at an appropriate ratio. The objective is to investigate the properties of replacing cement with tile powder and to determine the optimal mixing ratio of tile powder in cement mortar that can yield properties equivalent to or superior to conventional cement mortar. The experiment involved preparing cement mortar samples by replacing cement with two types of ceramic tile powder waste from tile manufacturing plants: waste tile powder and rectified tile powder. The mixing process was divided into two parts: Part 1 used a cement and tile powder ratio, while Part 2 used the results of the strength analysis from Part 1 to adjust the ratio accordingly. Various properties were tested, including specific gravity, normal consistency, setting time, tensile strength, and compressive strength. The results of the study revealed that replacing of cement with rectified tile powder provided the highest tensile and compressive strength, comparable to that of conventional cement mortar. Therefore, the use of ceramic tile powder as a replacement can enhance compressive strength while reducing cement usage, which has positive environmental implications by decreasing greenhouse gas emissions from cement production. Furthermore, this approach promotes the effective use of waste materials from the ceramic industry, contributing to the sustainability of the construction industry.
คณะครุศาสตร์อุตสาหกรรมและเทคโนโลยี
Industrial Education and Technology, King Mongkut's Institute of Technology Ladkrabang has a vision for sustainable excellence. The mission is to develop learners to be ready for the digital world, develop educational innovations using research as a base, strategic management with good governance, and academic services that benefit society. In this activity, the group of students joined with the Embassy of the Russian Federation in the Kingdom of Thailand, the working group of the Thai Silk and Culture Promotion Association, and the working group of the National Research Office (NRCT) to integrate knowledge to design a silk outfit that combines Thai and Russian cultures, create a network of cooperation in arts, culture, technology, innovation, and dissemination of knowledge and the beauty of Thai silk. The objective is to develop the potential of teachers and students in creative design, listen to the work guidelines from the working group of the Thai Silk and Culture Promotion Association, the working group of the National Research Office (NRCT) via an online meeting. The team of teachers and students from King Mongkut's Institute of Technology Ladkrabang under the name of the "Love Silk" group designed a Thai silk outfit that combines cultures with the identity of Thai silk and studying traditions and cultures of the Russian Federation's clothing. They studied related literature and research documents and integrated knowledge into the design process, inspired by the concept of the Rajapataen outfit. Since the reign of King Chulalongkorn (Rama V) in 1872, together with the clothing culture of the Russian Federation, emphasizing Thai silk, this concept has gone through the process of creating and selecting the design concept (Concept Generation and Selection). The concept received from the embassy was first submitted for feedback on July 25, 2024. There was a suggestion to add more uniqueness to Thai silk through a fashion show presentation by the wife and grandson of the Ambassador of the Russian Federation. Therefore, the designed outfits are 1 set of women's clothes and 1 set of boys' clothes. The women's set has an inner shirt adapted from the royal outfit using silk fabric, Kon Ka-ed pattern, with two separate pieces: 1 shirt and 1 skirt. The jacket is a modified long suit style, plain silk, dark pink and red. The boys' set has a long-sleeved shirt adapted from the contemporary royal style, tailored with cream silk, long slacks tailored with raw betel silk, and a collarless coat with blue silk and lotus pattern. Adapted from the Rajapattan suit with a long collar in an international style. On August 2, 2024, the designed suit and the prototype of the raw fabric suit were brought to the ambassador's wife and nephew to try on. On August 30, 2024, the ambassador was met for the 4th time to bring the silk suit that was cut into a real silk suit. The shirt was given to the ambassador's wife and nephew to try on. It was worn to join the fashion show in the 13th "Thai Silk to the World" Silk Festival at the Naval Auditorium, where lecturers and students from the Faculty of Industrial Education and Technology, King Mongkut's Institute of Technology Ladkrabang, joined the fashion show in the finale round, which proceeded smoothly. After the event, the working group of the Thai Silk and Culture Promotion Association brought the clothes designed and tailored by the "Rak Prae Mai" team to exhibit Thai Silk to the World Exhibition from September 1-8, 2024 at the Emsphere Shopping Mall. The team summarized the report and compiled a complete report. In the implementation of this project, the Faculty of Industrial Education and Technology, King Mongkut's Institute of Technology Ladkrabang has received support and facilitation throughout the project. The budget support from the National Research Council of Thailand (NRCT), the support of fabrics for sewing from the Thai Silk and Culture Promotion Association, and the information for designing valuable silk dresses from the Embassy of the Russian Federation in the Kingdom of Thailand are very important factors that made this operation a success. It is a very important experience for the team of teachers and students of Industrial Education and Technology, King Mongkut's Institute of Technology Ladkrabang. We sincerely hope to receive good cooperation in the future.
คณะเทคโนโลยีการเกษตร
This research gives a comprehensive overview of the use of antibiotics in livestock production, highlighting both the benefits and the risks associated with their use. The benefits, such as improving immunity, digestion, and reducing infections, are contrasted with the growing concern over antibiotic residues and the development of drug resistance. The shift towards alternatives like probiotics is explored as a sustainable solution, with a specific focus on lactic acid bacteria (LAB) found in the digestive systems of livestock. Thailand’s regulations, which control antibiotic use in animal feed, are also discussed, setting the stage for the study on LAB as a potential replacement for imported probiotics. 1. Use of Antibiotics in Livestock: Antibiotics have been used to promote growth, improve digestion, and prevent infections in livestock. However, the improper use of antibiotics can lead to residues in animal products and the development of drug-resistant bacteria. 2. Global Trends in Antibiotic Use: Many countries, like the European Union and Japan, have banned antibiotics as growth promoters, while others, like China and the U.S., are planning similar bans. 3. Thailand's Approach: Thailand has implemented a regulation since September 2020 to control the use of antibiotics in animal feed, requiring control at both feed mills and farms that mix their own feed. 4. Probiotics as an Alternative: Probiotics, particularly lactic acid bacteria (LAB), are being studied as an alternative to antibiotics. LAB are naturally found in the digestive tracts of livestock and are considered beneficial for maintaining gut health and replacing the need for antibiotics. The study examines the potential of LAB from Thai livestock (broilers, pigs, and cattle) as a sustainable alternative to imported probiotics, aiming to overcome issues like low survival rates of foreign probiotics in practice.