This research aims to develop Thai herbal formulas for household cleaning products and reduce the use of chemicals by using kaffir lime herbs to extract essential oils by using a method of squeezing from the bark. The result is a dark green essential oil with a pleasant aroma when mixed with liquid hand soap and natural residues such as water extracted from silkworm cocoons to add moisture and lye to remove it. Reduce the use of chemical flavoring agents the use of coloring chemicals the use of moisturizing agents and the use of degreasers. In this research the formula for hand washing liquid soap using 80 ml. of essential oil from kaffir lime peel is the right amount resulting in liquid hand soap with a pH value of 7.3 which is the value that is in the standard for mixed liquid soap products. TIS 1403-2551 can inhibit the bacteria Staphylococcus aureus (S.aureus) a bacterium that can cause diarrhea in humans.

his research work aimed to study the effects of the addition of sisal fiber and surface treatment by epoxy silane on the physical and thermal properties of polylactic acid (PLA). Specimens of PLA and unidirectional fiber-reinforced composite were processed by a compression molding machine and evaluated the physical and thermal properties by water absorption measurement and differential scanning calorimetry (DSC) analysis respectively. The result showed that water absorption tended to increase by adding sisal fiber whereas surface treatment of sisal fiber by epoxy silane improved water resistance of composites. The water absorption values at immersion time of 5 days were 0.89 1.13 and 1.26 % for PLA PLA/treated sisal fiber composite and PLA/untreated sisal fiber composite respectively. For thermal properties the addition of sisal fiber led to decreases in glass transition temperature and crystallinity. These were because the presence of continuous fiber might interfere with the crystallization of PLA. The surface treatment of continuous fiber with epoxy silane led to difficult crystallization. The good interfacial adhesion interrupted PLA alignment.

The research on “News content management of mass media In the fake news situation” aims to study the management of content and news content and reporting form of mass media in a fake news situation. The study is qualitative and employs an in-depth data interview. In this research the interviewees are the top middle and operational management of Thairath Online Dailynews Online Thai Post Online and Manager Online who are responsible for organizing the news program for the public report. The finding revealed that in respect of the content management of mass media in fake news situations the mass media organization that plays a role in setting the news agenda should prudently verify the accuracy and completeness of the news content prior to reporting and take into account the role and duty of the news report. Regarding the news reporting the findings indicated that the mass media organization must strategically manage the organization to be related and compatible with the changing external environment both internal and external factors relating to the production of the mass media’s news programs to be used for analysis in order to ensure that the organization can manage and attract the attention. In addition the mass media must be cognizant of the effect they have on the way of life of society members by widening and narrowing the communication gap and by encouraging viewers to engage with the media rather than adopting and blindly trusting the substance of false news.

Due to the epidemic situation of Covid-19 has had a huge impact on the Thai economy and society. make a government agency Many private companies have to work from home. which the Faculty of Business Administration Rajamangala University of Technology Phra Nakhon is one organization that has a policy for teachers and students to teach online. As a result teachers and students have to communicate online. As a result students who deal with the registration documents follow up with their advisors about the status of the registration documents. head of department and branch coordinator through online channels such as Line Messenger email etc. which resulted in advisors head of department and branch coordinator There is an increasing workload. from the problems mentioned above Therefore the researcher proposes a research project on the development of a registration document tracking system for students of the Faculty of Business Administration. Rajamangala University of Technology Phra Nakhon In order to reduce the workload of teachers and staff in answering questions about the status of registration documents for students The results of the research showed that the registration document tracking system can help increase the efficiency of teachers and staff. It also gives students the convenience of tracking the status of documents submitted for registration and processing.

Voltage drop is one of the power quality problems affecting power users. This happens due to the higher demand for electric power. Or a short circuit in the transmission system. This causes a voltage drop is one of the power quality problems affecting power users. This happens due to the higher demand for electric power. Or a short circuit in the transmission system. This results in drop in Solving of voltage drop problems in power distribution model with distributed generator were presented with MATLAB program by installing a generator in the distribution system. Therefore simulated a case study 5 case 1 simulation by not installing a generator at any bus case 2 simulation by installing a Generator at bus 1 case 3 Simulation by installing a Generator at bus 18 case 4 simulation by Generator installed at bus 33 and case 5 simulation by Generator installed at bus 13 17 21 31 to study the suitable location of generator installation to solve the problem of voltage drop.