The presented project topic is Garbage Sorting Systems. The purpose is to study the operation and develop a waste sorting system that can automatically detect the type of waste using a proximity sensor to separate the types of metal and non-metal waste, as well as an ultrasonic sensor to check the amount of waste in the bin. If the amount of waste exceeds the specified amount, the system will send a notification to the communication device connected to the system, such as a smartphone or computer. The operation of the system is designed to increase the efficiency of waste management, reduce the burden of manual waste sorting, and promote recycling. This system can be applied in various places, such as educational institutions or public places, to help reduce the amount of waste that is not properly separated and increase the opportunity to reuse waste.
เนื่องจากทางภาควิชาวิศวกรรมอิเล็กทรอนิกส์ มีจุดมุ่งหมายให้นักศึกษาภายในภาควิชามีความรู้ความสามารถ ความเข้าใจ และประสบการณ์ในการปฏิบัติงานโดยมีวัตถุประสงค์เพื่อช่วยในการเสริมสร้างการเรียนรู้ควบคู่กับทฤษฎี และยังมีบทบาทสำคัญในชีวิตประจำวันอย่างมากเพื่ออำนวยความสะดวกต่างๆ เนื่องจากในปัจจุบันในกระบวนการผลิตทางอุตสาหกรรมได้มีการนำเอาอุปกรณ์ที่มีความทันสมัยเข้ามาใช้งานมากขึ้นโดยนำเอาเทคโนโลยีที่ทันสมัยเข้ามาประยุกต์ใช้ทางด้านอิเล็กทรอนิกส์ โครงงานนี้ประกอบไปด้วยเซ็นเซอร์ Proximity และเซ็นเซอร์ Ultrasonic ซึ่งเป็นอุปกรณ์ตรวจจับ คัดแยกวัตถุประเภทโลหะ อโลหะและวัดตรวจปริมาณขยะภายในถังขยะ เพื่อให้ชิ้นงานสามารถทำงานได้ตามขอบเขตที่กำหนด ซึ่งเครื่องคัดแยกขยะจะทำงานเมื่อมีการทิ้งขยะลงถัง เซ็นเซอร์จะทำการแยกประเภทของขยะตามที่ได้กำหนดไว้ จากนั้นจะมีการตรวจสอบปริมาณขยะภายในถัง หากปริมาณขยะเกินกำหนด ระบบจะส่งการแจ้งเตือนไปยังอุปกรณ์สื่อสารที่เชื่อมต่อกับระบบ
คณะเทคโนโลยีสารสนเทศ
Traditional methods of public relations and learning often lack engagement and fail to provide users with a deep and immersive experience. Additionally, these methods struggle to reach a wide audience, especially those unable to visit the physical location. This project aims to solve the issues of accessibility and awareness regarding the institution’s Chalermphrakiat Hall and historical exhibition. Utilizing metaverse technology to simulate important locations allows users to explore the site and view key information in a virtual format, thereby enhancing the engagement of students staff alumni and the general public. The metaverse system is developed using Unity, a powerful game engine capable of supporting the creation of metaverse environments. This allows for the creation of an interactive and realistic virtual space. Unity also supports the management of physics, lighting, and sound, further enhancing realism. Additionally, the system is integrated with web browsers using WebGL technology, enabling the project developed in Unity to be accessed directly through a browser. Users can visit and interact with the metaverse environment from anywhere without the need to install additional software. The developers have thus created the metaverse system to provide a realistic and engaging learning experience, enhancing public relations efforts and fostering a strong connection with the institution efficiently.
คณะเทคโนโลยีการเกษตร
This experiment aimed to study the suitable types of polymers for coating with chlorophyll extract and the quality of cucumber seeds after coating. The experiment was planned using a Completely Randomized Design (CRD) with four replications, consisting of five methods involving seeds coated with different types of polymers: Polyvinylpyrrolidone, Sodium Alginate, Carboxy Methyl Cellulose, and Hydroxypropyl Methylcellulose, each polymer being coated alongside chlorophyll, with uncoated seeds serving as the control method. The coating substance was prepared by extracting chlorophyll from mango leaves, then mixed with each type of polymer at a concentration of 1%, using an 8% concentration of chlorophyll extract. The properties of each coating method, such as pH and viscosity of the coating substance, were examined before coating the cucumber seeds with a rotary disk coater model RRC150 at a coating rate of 1,100 milliliters per 1 kilogram of seeds. Subsequently, the seeds were dried to reach the initial moisture level using a hot air blower, and seed quality was assessed in various aspects, including seed moisture, germination rate under laboratory conditions, germination index, and seed fluorescence under a portable ultraviolet light illuminator, as well as light emission spectrum analysis using a Spectrophotometer. The experiment found that each type of polymer could be used to form a film together with chlorophyll, which had appropriate pH and viscosity for the coating without affecting seed quality and showed fluorescence on the seed surface both under portable ultraviolet light and spectral emission analysis with a Spectrophotometer. Using HPMC as the film-forming agent with chlorophyll was the most suitable method, enhancing seed fluorescence efficiency.
คณะทันตแพทยศาสตร์
Objective or Background: Dental caries is still one of the most significant dental problems worldwide, with prevalence rates up to 90% among children and adults. Cariogenic bacteria, especially Streptococcus mutans, is the primary microorganism involved in the pathogenesis through carbohydrate metabolism and biofilm formation, which are challenging to eradicate. Histatin-5 (HST-5), a human salivary antimicrobial peptide, has demonstrated antimicrobial activity against various fungal and bacterial pathogens. Phytosphingosine (PHS), an endogenous bioactive sphingolipid found in fungi, plants, and humans, also shows antimicrobial properties. This study aimed to evaluate the killing activity of HST-5 alone and in combination with PHS against S. mutans under biofilm-stimulating conditions. Materials and Methods: Antimicrobial activity against a planktonic culture of S. mutans was evaluated using a time-kill assay, and biofilm-forming capacity was confirmed by crystal violet staining assay. The killing ability against 24h pre-formed biofilm was determined using Transferable Solid Phase (TSP) pin lid model. Synergistic activity between HST-5 and PHS was evaluated using the checkerboard technique. Additionally, the cytotoxicity of the tested agent on human gingival fibroblast cells (hGFs) was assessed after 1 h of incubation using an MTT assay. Results: A time-kill assay revealed that both HST-5 and PHS exhibit time- and concentration-dependent activity against the planktonic form of S. mutans. PHS achieved over 90% killing activity within 15 min at 5 μg/ml, whereas HST-5 required 30 min to reach 90% killing at 20 μM. The biofilm formation capacity of S. mutans was confirmed. The inhibitory concentrations (IC50) of HST-5 and PHS against S. mutans biofilm were 25 μM and 13.5 μg/ml, respectively. A synergistic interaction between HST-5 and PHS, with IC50 values reduced by 8-fold and 16-fold, respectively. No cytotoxic effects were observed in hGFs cells at the concentration of the synergistic interaction. Conclusions: Therefore, the combination of HST-5 and PHS may enhance the effectiveness of anti-infective agents against S. mutans biofilm, potentially preventing the development of dental caries.