Authors:Varin Khera Abstract: This article introduces an overview and introduction to the field of cyberpsychology and how it impacts cybersecurity. It concerns with understanding cyberpsychology and how to managing the online behaviors to reduce risk of cyberattacks from cyber perpetrators. The article shows various methods and techniques used to study the cyberpsychology, such as: surveys, experiments, and observations. It also suggests implications of cyberpsychology for society including the potential for digital literacy education, and the development of new interventions to address online problems. And at the end, it shows the future directions of the research studies of cyberpsychology. Keywords: Cyberpsychology, Internet Psychology, Cybersecurity, Online Behavior PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:Pakpoom Supachart, Krissadang Sookramoon, Aucha Prosuwan Pages: 1 - 15 Abstract: Nowadays, parabolic trough solar collector technology is widely used in hot water production because this technology significantly increases the efficiency of hot water at a low cost, compared to the other technologies. But the design of parabolic trough solar collectors to achieve high thermal efficiency at an affordable price and can be used in rural areas has not been developed much. In addition, the technology of Computer-Aided Engineering (CAE) has been continuously developed; therefore, it was the beginning of this research that focused on the development of a parabolic trough solar collector for hot water production in rural areas with computer-aided engineering using SolidWorks software. This helps predict heat transfer behavior between the fluid flowing through the solar collector tube and the environment. The research aimed to compare the effect of thermal efficiency of parabolic trough solar collector prototype obtained from the numerical study with the experiment and to study an economic value of this prototype. In the experiment, the research team conducted the experiment from 8:00 AM to 5:00 PM during April 2022 and collected the results of various variables, including the temperature of water entering and discharging the solar collector tube, air temperature and solar irradiation. By comparing the simulation results with the experimental results, it is consistent: the parabolic trough solar collector could heat water temperature up to 64.3 C (simulation result) and 65 C (experimental result); moreover, its thermal efficiency was between 26.18 – 68.77% (simulation result) and 27.38 – 69.97% (experimental result) during a period from 12:00 AM to 3:00 PM. PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:อาภัสรา ไชยคาม Pages: 16 - 30 Abstract: The purpose of this study is to study and adopt the transportation management system technology of ABC Co., Ltd. The purpose of this study is to explore the technology of transportation management system and improve the efficiency of transportation management system. The data collected through the questionnaire survey were from management personnel, transportation personnel and transportation personnel. Quality inspector, manager, staff of transportation company, ABC Co., Ltd The data were analyzed by multiple regression analysis and in-depth interview. Special choice The research results show that most of the respondents are between 31 and 40 years old, have a bachelor's degree, and have a monthly income of 15001. 25-000 baht, working experience, more than five years of truck driver position, using the company's transportation management system technology. The overall image and focus of ABC company is to adopt the highest level of transportation management system technology. When considering the factors, it is found that the most important factor is the use of technology, transportation management system. The results show that the average value of 4.19 technologies is followed by the adjustment of working mode, followed by 4.16 technologies, followed by access technologies. The average value of technology is 4.13, followed by the attitude towards technology, the average value of technology is 4.12 and the technical service provider. The results show that there is a technical advantage at the level of 0.05. Influence of technology adoption of ABC company's transportation management system. Keywords: technology acceptance, transportation management system technology PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:Soonthorn Saengpetch Pages: 31 - 40 Abstract: This research was to improve the efficiency of building frames because Thailand is located in a tropical climate zone. Causing the current building to have a hot climate, which wastes electricity costs, we therefore need to pay attention to the building frame. A good building frame should be able to prevent too much heat from entering the building. to reduce the cooling load of the air conditioning system And leads to a reduction in the use and cost of wasting electricity. Normally, the air conditioning load caused by heat transfer from the outside of the building into the building. Will have a higher proportion than the heat generated within the building itself the way we can understand the mechanism of heat transfer into the building is how it is. What are the characteristics and know how to assess the performance of the building frame It allows us to analyze to find ways to prevent those heat from entering the building for a particular building. Air conditioning load is affected by external factors. including the heat that is transferred from the outside of the building into the building and from internal factors such as heat generated from within the building itself, usually The heat from the outside will have a higher proportion than the heat from the inside, i.e. 60% of the air conditioning load PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:Prayat Meeboongirt, ดร. เพชรรัตน์ จันทรทิณ, ดร. อนุรักษ์ จันทร์ศรี , พลโท ดร. พิทักษ์ เกียรติพันธ์ Pages: 41 - 56 Abstract: The purpose of this research is to study and find the suitable methods for welding thin steel pipe to be strongest by experimenting with the thin steel pipes Ø20.50 mm., thickness 1.60 mm., each piece 100 mm. length connected together by Electric arc welding method as a sample by adjusting 2 parameters, welding feed patterns, straight and zigzag lines, and adjust the welding current of 2 sizes of welding electrodes for 3 current ranges, The welding electrode size Ø2.0 can be set to 3 ranges of current, 50, 60 and 70 amperes, and the electrode size Ø2.6 can be set to the current of 60, 75 and 90 amperes according to the standard value for setting the welding current of each size of welding electrode. After that, conduct the tensile strength test by the Universal Testing Machine in order to compare the strength of each welding line by changing the above parameters. The results of the research revealed that by adjust above 2 parameters could not be affected the strength of the welding line with the statistically significant. PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:ปัญจ์ปพัชรภร บุญพร้อม Pages: 57 - 65 Abstract: The objectives of this research were to: (1) study the Physical Characteristic solid waste generated by each source and (2) study the carbon footprint of them generation rate in 2022 to analyze waste composition and CO2 emission from landfill disposal. The evaluation of carbon dioxide emission was calculated from emission factors (EF) in term of CO2 equivalent according to the guidelines of The Intergovernmental Panel on Climate Change (IPCC) and Thailand Greenhouse Gas Management Organization (Public Organization) (TGO). The result of the study showed that organic waste represents the largest portion in the waste stream (52.18 %), followed by plastic (19.37 %) and foam box (polystyrene) (14.65 %). The solid waste disposal of Saladan Subdistrict Municipality generated a total of 12,124.68 kgCO2 eq per year. CO2 emissions from each type of solid waste landfill 12,107.97 kgCO2 eq per year and vehicle fuel used for landfill waste 16.71 kgCO2 eq per year. In order to have less greenhouse gas emissions, the amount of waste brought to landfill should be reduced by having a waste sorting campaign from the source. A large amount of organic waste should be composted into bio-fertilizer, reused or brought through a new production process (Recycle) and created a long-term solid waste management plan to be ready for the public to participate, etc. PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:Georges Khedari Pages: 66 - 76 Abstract: Nowadays, people in Bangkok prefer to live in a condominium. Climate change and PM 2.5 affect the behavior of residents of buildings. Closing doors and windows to prevent dust and directly turning on the air conditioner to reduce accumulated heat and create comfortable conditions are usual practices that result in poor indoor air quality due to poor ventilation. This paper aims to identify appropriate ventilation concepts to improve indoor air quality for the residents of condominiums. To this end, the research studies the factors affecting residents’ behavior in condominiums in Bangkok. Quantitative data collected from 400 samples of people were analyzed statistically by considering the goodness of fit of the data, the relationships between factors, the independence test, and principles of ventilation were studied and conducted to identify the proper room ventilation rate. It was found that urban heat island and outdoor air quality are the main factors that affect the behavior of indoor living. The proposed concept design of ventilation system at an appropriate ventilation rate can reduce the accumulation of heat and humidity in the room resulting in a state of thermal comfort, the reduction of energy consumption of the air conditioner when operated. Consequently, it will result in improving air quality to be within the standard (Indoor Air Quality: IAQ) and to reduce the risk of residents' health problems. PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:wiroj khawlaor Pages: 77 - 85 Abstract: With the advancements in embedded technology, it has become more convenient to operate in DC motor control systems. The commonly used methods are starting to shift from analog control to digital control. The design is based on the principle of pulse modulation of DC motor speed control. The main design and study of this paper demonstrates the function of speed control of DC electric motors. using MATLAB and Simulink programs to comply with hardware cycle and programming the microcontroller to achieve the desired operation. By using the closed speed control algorithm, the PID and the duty ratio of the PWM signal are modified to provide the desired rotation and speed of the motor. The system has a simple structure. and has the ability to prevent interference from the environment The MATLAB simulation results show how to control the speed of DC motor with PID controller, which is more convenient than traditional control and more stable. And the resulting performance reflects the design to meet the requirements of motor control such as Working speed in different systems, forward and reverse control. increasing speed and speed reduction Including the error at steady state PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:Prasongsuk Songsree Pages: 86 - 96 Abstract: The research presented here is to determine the effectiveness of the fall notification system for patients and the elderly from walk-walking devices through the LINE application. for people who take care of patients and the elderly according to various situations The researcher has started research and development of a prototype walker device to help walk patients and the elderly through the LINE application. by the object of this research 1. To design and build a prototype walker to help walk patients and the elderly through the LINE application. 2. To find out the efficiency of the fall notification system for patients and the elderly through the LINE application. 3. To find the location of patients and the elderly through the LINE application. From the results of the test to find out the effectiveness of the fall notification system for patients and the elderly from walk-through devices through the Line application. and the GPS positioning system of the device. It was found that the researcher has determined the efficiency of the device by testing the sensitivity of the signal transmission of the device, the elderly fall alert system through the LINE application. can send signal from the device to the LINE application of the elderly caregivers according to the objectives. The researchers simulated the event that elderly people fall from the house or place in the care of the elderly, all 3 floors, each floor was tested for 5 phases by doing 10 trials and testing the sensitivity of all 3 machines. It was found that the device will send the sensitivity in the best distance of 3 meters. The GPS system indicates the position of the device. can accurately tell the location of the machine and is sensitive to the delivery of the contract. PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:RARAI JANGJAI Pages: 97 - 108 Abstract: The Problems in management of electrical and electronic waste products exist all over the world because of the manufacturing and innovating to meet the needs and for the convenience of users. However, in Thailand, there is no law that directly applies to the management of these waste products. The relevant agencies are trying to draw up a legislation to enforce the disposal of these electrical and electronic equipment waste products to reduce the impact of toxic substances contamination to environment and public health. In this research, the management of car radio waste products was studied. Car radio is considered a type of electronic device that may be overlooked because this device is not branded by the manufacturer and is not sold directly to consumers, but rather to car manufacturers that selling cars to consumers. This research was conducted to survey the groups of stakeholders involved in the process of used car radios in Bang Bo District and Bang Sao Thong District, Samut Prakan Province. A survey of 100 car users found that about 25 % of their used cars were resold to used car dealers and 75% of them would keep their old cars for themselves and pass them on to their family members. A survey of 10 used car dealerships found that 11,400 cars were repair for refurbishment per year. Of the cars that were refurbished, 264 car radios were found to be damaged, 252 pieces were sold to antique shop and 12 pieces were disposed as general waste. A survey of 10 repair shops found that there were 4,380 pieces of car audio had been refurbished per year, with 2,520 of them being returned to owners, 660 pieces were sold to the second buyer, 900 pieces were disposed as general waste, and 300 were sold to antique shops. A survey found that 10 antique shops buys more than 330 used car radios per year, with 550 pieces from used car buyers and audio tuning shops, the number of broken car radios that will be included in the antique shop would be more than 880 pieces. From the survey, the material flow analysis for the unused car audio was constructed. The roles and duties of stakeholders in the current legislation were compared to those of the draft of Electrical and Electronic Equipment Waste Management Legislation as a guideline for preparation and adaptation when the draft legislation is enforced. PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
Authors:Kanyarat Punpain Pages: 109 - 119 Abstract: Company case study Excellent Food Co., Ltd. produces Konjac Pearls by dripping konjac water from a conveying tube that has been drilled to the size of the desired Konjac Pellets. But the pressure inside the conveying pipe causes the drop rate to be uneven. The size of the konjac pearls is different and thus the production is delayed. From the above problem, the researcher has designed and built a Konjac Pearl Dropper, consisting of mainly 2 parts, namely a hopper and a Konjac Pearl Dropper from 3 experiments. The test result , the 1st time, fixed the appearance of the drop hole to be a round hole.. The 2nd time, the pumping of konjac water from the tank to the pearl dropper. The result is able to pump all the konjac water from the tank to the pearl dropper. The 3th time, test the whole system. There is a connection point between the hose to deliver the konjac water and the leaking water filter head. Fix it by tightening the fixing nut between the hose and the filter head again and inserting the rubber seal. This makes it possible to produce konjac pearls at 960 kg/working time in 1 day. and the production rate increased by 480%. PubDate: 2023-06-22 Issue No:Vol. 10, No. 1 (2023)
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