Journal of Advanced Development in Engineering and Science

Development of Healthy Beverages Made from Jew’s Ear Mushroom for Enhancing Immune System with Beta-Glucan Supplementary

Suriyaporn Nipornram, Kritsada Kaweewong, Busaba Manosan, Prakit Timkhum — Fri, 20 Sep 2024 00:00:00 +0700

Oyster Mushroom Cultivation Community Enterprises, Tha Chang Subdistrict, Muang District, Phitsanulok Province was producedcultivates Jew’s Ear mushrooms and processes into Jew’s Ear mushroom beverage to sell as additional income. Whereas there was a problem that mushroom particles precipitated quickly. The benefits and qualities of the beverageswere unknown. The objective of the research to investigated the particle size and quantity of dried Jew’s Ear mushroom used in beverages to reduce the precipitate of particles in beverages. Two particle sizes of dried Jew’s Ear mushroom were compared which were 250 and 500 micrometers as well as the three amounts of dried Jew’s Ear mushroom used in the beverage which were 0.5, 0.6 and 0.7 percentage. Examine the quality according to the standards of the Ministry of Public Health topic regarding beverages in sealed containers of Jew’s Ear mushroom beverage. The results showed that Jew’s Ear mushroom could be developed into a beverage containing beta-glucan immune enhancers. Particle size of Jew’s Ear mushroom at 250 micrometers at 0.5 percentage was the appropriate amount for the production of Jew’s Ear mushroom beverage and using the production process of sterilization with acid adjustment. This process reduced the precipitate more than that of 50 percent at 600 hours. The beta-glucan content of this beverageremained 5,722.75 milligrams per 100 milliliters andvitamin C content was 856.52 milligrams per 100 milliliters. The beverage has passed the criteria chemical and microbial analysis according to the standards of the Ministry of Public Health on beverages in sealed containers, issue 356, B.E. 2556.

Health Risk Assessment of Respirable Dust from Burning Incense, A case study: Wat Bang Phli Yai Nai, Bang Phli Yai District, Samutprakarn Province

Fri, 20 Sep 2024 00:00:00 +0700

Incense smoke is cause many types of air pollutants. If exposed in high volume and long period, it may cause related to the respiratory diseases. This study aimed to assess the health effects of incense smoke at Wat Bang Phli Yai Nai in Samut Prakan Province. The objective was to measure the concentrations of Respirable Dust (RD) and Particulate Matter less than 2.5 microns (PM 2.5), which impact the health of workers. A personal air sampler pump and an indoor air quality monitor duration December 16 – 22, 2023 and collected health information including working time, weight, and exposure time of workers 24 person. Then were used for the health risk assessment. The results showed that the average concentrations of RD and PM2.5 were 0.551 mg/m³ and 0.079 + 0.054 mg/m³, respectively. The health risk assessment indicated that the Hazard Quotient (HQ) levels for RD and PM2.5 averaged 5.029 and 1.586, respectively, both exceeding the threshold value of 1. This indicates a significant health risk from exposure to these pollutants. Therefore, it is necessary to find corrective and preventive measures such as, cancel lighting incense and candles, install a ventilation system and wearing mask etc.

A Case Study of Thermodynamics and Electrochemical Corrosion Behaviorof Al 6061-T6

Fri, 20 Sep 2024 00:00:00 +0700

Aluminum alloy 6061-T6 is now gaining interest from industries. It is known that T6 heat treatment process induced the presence of Mg₂Si particles. The uniform distribution and size of these particles are responsible for the improved mechanical properties. However, the presence of these particles may also produce the local galvanic corrosion between the particles and aluminum matrix. Thus, the electrochemical corrosion behavior of this aluminum alloy is of great interest for industries, particularly marine industries. This case study provides insight in the thermodynamics corrosion of pure aluminum and then offers the preliminary study on the electrochemical corrosion of aluminum in the artificial marine solution using a polarization curve technic and an electrochemical impedance spectroscopy (EIS). The study shows that the passive film mainly composed of Al(OH)₃ can be formed on the substrate of aluminum, enhancing the corrosion resistance in a pH range of 5.7-8.5. Polarization curve results show that the presence of chloride ions attacks the passive film, promoting the pitting corrosion. EIS results display that the destruction of passive film can lead to a significantly increased corrosion rate of aluminum 6061-T6. The calculation based on Gibbs free energy pointed out that the localized corrosion of aluminum 6061-T6 can be initiated from the electrochemical potential difference between Mg₂Si particles and aluminum matrix. Mg can be dissolved, leading to the onset of the localized corrosion.

Influence of UV-C Radiation Treatments on Dried Chilli Qualities and Aflatoxin Production

Fri, 20 Sep 2024 00:00:00 +0700

This study investigated the effect of UVC combined with hot air oven drying on physical quality, chemical quality and aflatoxin formation in Superhot dried chili. The experiment consisted of 3 treatments: fresh chili dried, fresh chili irradiated with UVC rays before being dried, and fresh chili dried before being irradiated with UVC rays. Drying was used a hot air oven at 70°C for 18 hours, UVC irradiated for 5, 10 and 20 minutes. 100 grams of dried chilies were packed in Poly Propylene bags and stored at room temperature for 180 days. The results of the quality analysis revealed that the moisture content of dried chili ranged from 6.91% to 9.33%. After being stored for 180 days, the moisture content and water activity of all treatment were increased significantly. Drying resulted in a decrease in L* a* and b* values, and at the end of study, L*, a*, and b* values of all treatment were probably lower than their initial values.Storage had the effect of reducing pH significantly, which was associated with an increase in titratable acidity. The detection of fluorescence from aflatoxin under black light, and quatitative of aflatoxin using ScreenEZ Aflatoxin ELISA Test Kit revealed that all treatments did not found aflatoxin.

Improvement Machine Maintenance for Enhanced Reliability Case Study: Transformer Manufacturers Company

Seksan Singthanu, Manop Pipathattakul, Pariwat Nasawat — Fri, 20 Sep 2024 00:00:00 +0700

The objective of this research was to improve the machine maintenance system based on reliability, focusing on increasing machine efficiency in terms of availability (the proportion of time a machine is available for use), performance, and quality rate. Tools utilized include a machine maintenance plan, daily check sheet, repair request and repair record form. The daily machine inspection abnormalities in the machine and take corrective action immediately. The results of the research after the improvement showed that the overall equipment efficiency (OEE) increased by 17%, the reliability performance (MTTF) increased an average of 22.68 hours, the machine maintenance performance (MTTR) decreased an average of 7.68 hours, and the system availability performance (A%) increased by 4.2%. The results of the research showed that improving the machine maintenance system based on reliability can result in machines that are more reliable, resulting in increased uptime, machine performance, and production quality, which has a positive impact on the overall production efficiency of the factory.

Estimation of Monthly Solar Radiation in Bangkok by Computational Models

Siriluk Ruangrungrote, Piyaon Sapphaphab, Manoch Hengwattana — Fri, 20 Sep 2024 00:00:00 +0700

Global solar radiation represents the combined output of direct and diffuse solar energy. Gathering data on solar radiation serves various purposes, such as facilitating solar applications, aiding architectural design, and supporting renewable technology. Estimating solar energy often involves empirical models, which incorporate meteorological and geographical parameters into the calculation process.In this work, three models based on sunshine duration hour were employed to develop a provisional solar radiation data for Bangkok, Thailand. Statistical analysis revealed that the Elagib & Mansell model exhibited the most accurate fit for this selected location, with RMSE = 3.770 MJ/m².day, MBE=7.291 MJ/m².day, MABE = 7.719 MJ/m².day, and MPE=50.286. It can be concluded that Bangkok experiences solar radiation conditions akin to those in Sudan, as assumed by Elagib and Mansell, considering seasonal variations and period, geographical coordinates, and atmospheric pollution levels. Similarly, the Peninsular Malaysia case study and the achievable forecast from modelings showed a similar tendency in correlation.

Direction for Solid Waste Management of People in the Thart Municipality, Chiangkhan District, Loei Province

Orathai jitthaisong, Maneerat Suthanthangjai, Somyong Seekhao, Kanda Pumsin — Fri, 20 Sep 2024 00:00:00 +0700

The purpose of this study was to express opinion and guideline about solid waste management of people in the Thart municipality, chiangkhan district, loei province. Study from sample people from 200 villagers. The tool was a questionnaire and interview. Data analysis by program IBM SPSS Statistics Desktop 22.0. Analyzed using statistical tools : percentage, average and standard deviation. The research found that overall, opinions of people the level is most ( = 3.64, SD = 0.86), the most is Thart municipality has a policy that gives importance to waste management ( = 3.91, SD = 0.62), moderate level is Thart municipality has garbage dumps along the way from vendors selling vegetables and fruits and from fresh markets (= 3.36, SD = 1.11). Guidelines about solid waste management of people that level is most ( = 3.98, SD = 0.69), guidelines for managing public waste in the high level, the need for Thart municipality to improve the area of waste disposal ( = 3.98, SD = 0.69). The least is the introduction of decay to repair instead of buying new ( = 3.72, SD = 1.00). The results of the interview with the community leaders found that the opinion on waste management is Thart municipality has an increasing population. Resulting in more and more garbage continually resulting in inadequate waste management in time and there is not enough budget for waste management. Guidelines for waste management, it is found that community has methods for waste collection by means of waste separation such as recyclable waste, organic waste then brought to the front area for the garbage truck to be disposed. There is a way to dispose waste by sorting such as separate the waste that is sold, waste that can be recycled, organic waste is used to make compost and to be used as animal feed. There are regulations in the community, waste management regulations, there are training and education for people in the community about waste management.

Influence of Poly-L-Lactic Acid to Gelatin Scaffold for Tissue Engineering Applications

Fasai Wiwatwongwana, Nattawit Promma, Rittichai Sangkatip, Manus Sriswat — Fri, 20 Sep 2024 00:00:00 +0700

This research was aimed to investigate the influences of poly-L-lactic acid on gelatin scaffold. The gelatin scaffold was fabricated via freeze drying technique and blended with poly-L-lactic acid in different ratios. The surface structure of gelatin/poly-L-lactic acid scaffolds in different conditions was investigated by using Scanning Electron Microscopy (SEM). The poly-L-lactic acid blended on gelatin scaffold demonstrated the molecular structure of poly-L-lactic acid aggregated on gelatin scaffold with decreasing of mean pore size of scaffold structure when increasing of poly-L-lactic acid contentin some ratio. The results from swelling test revealed that increasing of poly-L-lactic acid content increased in swelling ratio of gelatin scaffold with significant different when compared with pure gelatin scaffold. These results proved that using poly-L-lactic acid blended with gelatin scaffold changed in morphology of gelatin scaffold and improved its physical properties of the gelatin scaffold with enhanced in swelling properties of gelatin scaffolds which could be applied using in tissue engineering applications.

Ball Tracking System Using Kalman Filter and Deep Learning

Apisit Prempree, jiraporn kiatwuthiamorn, Chaipichit Cumpim — Fri, 20 Sep 2024 00:00:00 +0700

This paper presents a method for detecting the positions of tennis balls in video files using deep learning for ball position detection in video images. However, there are some image frames where deep learning cannot accurately detect the ball positions due to the small size of the tennis balls and their fast movement in that particular frame. To address this issue, when the deep learning system fails to track the movement of the tennis balls, a Kalman filter is used to estimate the positions of the balls in those frames and replace the missing positions with the estimated values. Experimental results demonstrate that the proposed method can closely approximate the actual positions of the tennis balls in the image frames with high accuracy.

Analysis of Properties and Break-Even Point of Pyrolysis Oil of Plastic Waste from Landfill

Kittipob Aureethum, Prangthip Rittichote Kaewpengkrow, Maneerat Khemkhao — Fri, 20 Sep 2024 00:00:00 +0700

This research studied pyrolysis fuel oil produced from a 10-year-old landfilled plastic waste from Nonthaburi Province. A vertical reactor (bench-scale fixed-bed reactor) with a capacity of 18.85 liters was utilized at temperature conditions of 400 °C and 450 °C, without using the catalyst. Five ratios of oil mixture comprising produced pyrolysis oil and commercial diesel fuel at 1:9, 2:8, 3:7, 4:6, and 5:5 were also studied to determine the most optimized mixture ratio and energy output. The physical properties of fuel oil were analyzed using Fourier Transform Infrared Spectroscopy (FT-IR). Calorific values were obtained by bomb calorimetry, and the production break-even point was calculated. Pyrolyzed products from the experimental conditions at 400 °C and 450 °C were pyrolysis oil 21.20 %, 32.10 %, char 42.10 %, 24.30%, and mixed gases 36.70 % and 43.60 %, respectively. Pyrolysis oil was primarily constructed of L-type aliphatic hydrocarbons, alkenes, and alkanes. Spectral analysis indicated similarities between some mixed oil formulas and commercial diesel fuel. The mixture ratio of 3:7, pyrolysis oil at 450 °C, and commercial diesel fuel gave the highest calorific value at 44.277 MJ/kg and the closest properties to commercial diesel as being compared to other formulas. The break-even point of this pyrolysis oil fuel production is estimated to be 1 years and 3 months at 104.698 THB per liter.