Soil is home to a diverse array of living organisms that interact within a complex food web, facilitating energy and nutrient cycling essential for sustaining life above ground. Among these organisms, soil microbes play a crucial role in supporting plant growth. Beneficial microorganisms enhance nutrient availability, improve soil structure by increasing porosity, and strengthen plant resistance to diseases. Conversely, harmful microorganisms, such as plant pathogens, can hinder plant growth and reduce crop yields when present in high concentrations. Neutral microorganisms, which naturally inhabit the soil, contribute to the soil ecosystem without directly impacting plants. A single teaspoon of soil contains over a billion microorganisms, yet only about 1% of them can be cultured in laboratory conditions. This highlights soil as one of the richest reservoirs of microbial diversity on Earth.
ในดินมีสิ่งมีชีวิตหลากหลายชนิดซึ่งมีความสัมพันธ์กันเป็นสายใยอาหารขนาดใหญ่ที่ทำให้เกิดการหมุนเวียนพลังงานและสารอาหารไปยังสิ่งมีชีวิตที่อาศัยอยู่บนดิน สิ่งมีชีวิตในดินทำหน้าที่สร้างอาหารสำหรับพืชเพื่อใช้ในการเจริญเติบโต ดินมีลักษณะเป็นรูพรุน มีทั้งน้ำ อากาศ ธาตุอาหารต่างๆ จึงเป็นแหล่งที่อยู่อาศัยของสิ่งมีชีวิตหลากหลายชนิด ซึ่งสิ่งมีชีวิตแต่ละชนิดจะมีบทบาทหลากหลายแตกต่างกันไป กลุ่มสิ่งมีชีวิตที่พบในดินได้แก่
คณะวิศวกรรมศาสตร์
This project aims to propose a design for a red offal processing room in a pork processing plant that processes 500 pigs per day or 80 pigs per hour. Each pig weighs approximately 105 kilograms, with 3.47% of the weight consisting of red offal. The process involves separating liver, gall bladder, heart, lungs, spleen, and kidneys as required. These parts are then chilled in cold water to reduce their temperature to below 7°C before packaging and sealing. Sorting is based on the number of pieces and weight, depending on the type of product. The processing times of sorting chilling and packaging vary depending on the product's type and size. The design was developed using data collected from the current production line and referenced standards. The room layout was planned using Systematic Layout Planning (SLP) principles to analyze activity relationships within the room and define functional areas. Equipment sizes and the required number of operators were calculated to ensure optimal use of space. The red offal processing room was designed with an area of 56 square meters. After the layout design was completed, a 3D model was created using SketchUp 2024, and the workflow and operations were simulated and analyzed using Flexsim 2024
คณะวิทยาศาสตร์
Atopic dermatitis patients are the second largest number among skin disease patients. There is no cure for atopic dermatitis, and it can only be treated to relieve symptoms, causing chronic disease. There is a chance that opportunistic infections will enter and cause more disease from the patient's wound, causing the patient to have complications from other infections. This study is interested in studying the reduction of the chance of opportunistic infections in patients with atopic dermatitis using natural extracts. The interest is in Plu Kaow and long pepper because there is data supporting the inhibition of microorganisms. The leaves of both plants are crudely extracted, soaked in 95% ethanol for 7 days, filtered with a Buchner filter, and the extracts are tested for phytochemicals to analyze phenolic components, flavonoids, tannins, anthocyanin, DPPH, and tested for antimicrobial properties. The experiments consisted of 5 types of gram-positive and gram-negative bacteria: E. coli, Bacillus subtilis, Pseudomonas aeruginosa, Staphylococcus aureus, and Staphylococcus epidermidis. The researcher expects that this can be further developed and used to treat patients with atopic dermatitis.
คณะวิศวกรรมศาสตร์
The designing of mosquitoes counting system instrument is presented in this work. The mosquitoes that were counted died in order not to measure duplicate counting data. As soon as the input source counting machine can detect the mosquito, the single trigger signal is transmitted to the IOT system to interrupt the server immediately. The number of real mosquito is not transmitting to the IOT but only a signal to interrupt the server. The server records the number of the interrupt signal with real-time clock. Then the interrupt information will be further handled. The front end counting machine consist of the high voltage generate with the suitable voltage value and electrode distance for the required mosquitoes size. The low trigger pulse signals of the mosquitoes killed by high voltage are sending to the controller unit. Immediately, interrupt counting signal of the number of mosquitoes is sent to the big stream data collection on IOT system by the time stamp technique. Form the measurement results, 10 live sample mosquitoes in a limited space box to fly though the counting machine show that the count results are 100% correct count.