Garlic is an ancient food and medicinal plant that has been used for centuries. The research team was interested in creating a garlic oil extract that could help reduce microbial contamination in the air during the prolonged period of the COVID-19 situation. A prototype sugarcane leaf paper filter was treated with garlic oil extract to improve its air purification properties and to reduce the number of microorganisms. This study investigated garlic oil extracts that were produced by a garlic fermentation process with isolated lactic acid bacteria. The oil was then extracted using steam distillation or maceration with 80% ethyl alcohol. Both these methods demonstrated that they were effective in inhibiting pathogenic microorganisms contaminating isolated from air (Fungi: Penicillium sp. Aspergillus spp. and Rhizopus sp. and Bacteria: E. coil Bacillus subtilis and Staphylococcus sp.) by Agar Diffusion method. It was found that the garlic oil extract distilled from steam was the best choice for further development as a coating for filter paper. Garlic oil extract can be stored at room temperature for at least 15 days after being coated on filter papers. After that the filters with garlic extract-coated filters made by sewing together four folded filter papers could remove the dust of 2.5 sizes as well as HEPA filters but had a disadvantage in filtering dust that was at least 10 PPM. This paper filter prototype was environmentally friendly because it could decompose on the ground within 12-15 days and reduce the spread of infection problems. From overall the prototype of the garlic oil extraction process can be developed at a commercial industrial level to produce large quantities of garlic extract with desired quality tracking features. It helps reducing environmental problems in a sustainable way; reducing waste conserving energy and using environmentally friendly materials.

This research was aimed to study of the effect of dragging force on paper cone falling by using the high-speed video analysis technique. Four different sizes of paper cones ranged from 3.00-5.70 centimeter were used. The cones having the same mass of 12 g and falling from 2.50 meters height were recorded for 240 frames per second and then were analyzed using the Tracker Video Analysis software. The results showed that (1) all four different sizes of paper cones were not freely fall with the Earths gravity due to indirect proportion with time of theirs speeds. The terminal speed of two large cones having diameter of 5.00 and 5.70 centimeters were 4.42±0.03 and 3.97±0.04 meters per second respectively. Only 0.87% of these experimental values were different from the theoretical ones. (2) The theoretical trajectory of these cones falling using the terminal speed from the experimental agrees with the theoretical ones. (3) The experimental drag force showed a second order function of the paper cone’s speed. The evaluated drag force during terminal area is approximately equal to the cone weight. Thus this technique can help students and teachers to visualize simple physics phenomena and relate them to the physics principles learnt in the classroom

The purpose of this study was to study the views of Thai certified public accountant on the electronic working papers (EWP) preparation in digitally with a sample of 132 subjects eliminated and data using descriptive statistics and multiple regression analysis. The results of the study were found that Perspective Thai Certified Public Accountants Perspectives on Electronic Paper Making as the Economy Drive to the Digital World. There is a statistically significant at 0.05 level where is relationship in positive with the preparation of electronic working papers (EWP) with the view of the certified public accountant on the matter of good corporate governance internal control Knowledge ability and ethics respectively most of them view that electronic working papers (EWP) making will help the system of monitoring and reporting. Therefore internal control to be more effective which also shows the competence of the auditor and helps the audit work within the framework of the auditing standard and more professional ethics.

Economic development from foundations It is one that is considered and used in economic development throughout. Promoting community products is one way to help people in the country especially rural people live a better life. Today more emphasis is placed on the standard of community products. Including promotion. Therefore the packaging for community products should be easy to create which the villagers may create themselves. They are made from cheap raw materials or easily found in the community such as agricultural residues. There is a lot left over. It is also used to lessen the papaya. The research in the past research of the researcher to obtain information. About the papaya fiber. Can form sheet. The line in the basket. And in the fiber inside the papaya soaking time. When we peel the outer shell and the flesh in the decayed. The fiber is connected to the net It can be made into paper. If we develop paper production process using papaya fiber. Control the size and quantity of fibers. Has a good collider helps in adhesion. We can produce cardboard from papaya plant fibers. And the fiber in the mesh. Can also be used as a liner (Liner) with the nature of the current. Also can be sealed on corrugated paper. To get a beautiful textured paper (Texture) unique. Suitable for packaging boxes to promote the sale of community products. As well as other products as well. Research indicates that Physical properties of paper from papaya plant fibers. The paper is different. From the test it was found that the paprika plant fiber paprika on the plate and seal the skin. Physical properties are not suitable for processing into packaging. Because of the high thickness and fold lines do not match. Because the fiber is hard surface seal. When folding so frame And broken easily. Packaging of papaya plant fiber packaging. The paper is different. From the tests all three types can be packaged well because of the high strength of the fiber. There are also beautiful patterns. Can increase the value of the product as well. But the package of papaya fiber that is sealed with papaya fiber. The fiber is crisp in the body when folding. Fiber is broken. The satisfaction in paper packaging from papaya plant fibers. Based on three case studies the user satisfaction was assessed. Cardboard from papaya plant fibers up unprotected skin. Satisfaction was at the highest level. Cardboard from papaya plant fibers up the sheet and seal the skin. The satisfaction of the sample was at the highest level. And the corrugated paper seals the skin with a sheet of papaya. The satisfaction of the sample was at the highest level.

Panicum repens is a species of grass. The paper has been made from non-wood materials for long times. This research was used Panicum repens for made grass pulp as non-wood fiber. The influence of alkaline concentrations on properties of pulp from Panicum repens was investigated under room temperature. Alkaline concentration levels were varied at 0% 5% 10% 15% and 20% respectively. Moreover Paper pulp from Panicum repens was observed by scanning electron microscope (SEM). This research has controlled the length of fiber approximately 0.5- 2.5 cm before soaked with alkaline concentration at 1 hour and soak with water for controlled pH value at 7-8. Paper pulp was formed on a sieve. The result showed that color of paper pulp made from Panicum repens was light brown and green. SEM showed that alkaline concentration affects the physical properties of paper pulp. Moreover true density of paper pulp was also investigated in this research.