: Research on the business model of curry paste products Ban Khlong Samrong Community Enterprise Ban Phaeo District Samut Sakhon Province towards a sustainable community economy the researcher aims to study and analyze a business model for curry paste products and to develop curry paste products. to be desired and choice for consumers by qualitative research and participative action research. (Participatory Action Research: PAR) and the research was conducted in 3 steps namely 1) to study the concepts and theories of Business Model Canvas in order to formulate a business model for Nam Prik Kaeng products; 2) Analyze the data from an in-depth interview. Focus group discussion from the stakeholders and 3) Content Analysis with the Nam Prik Kaeng product business model. Ban Khlong Samrong Community Enterprise Ban Phaeo District Samut Sakhon Province and summarized the research results by descriptive analysis. Enterprise Ban Phaeo District Samut Sakhon Province towards a sustainable community economy is to enable the development of a business model of the Ban Khlong Samrong Community Enterprise Group. By applying modern management knowledge to manage community enterprises The results of this research can be used to communicate and create mutual understanding among community enterprise members. as a guideline for further development of curry paste products And the knowledge from this research can be used to train the community enterprise group to have knowledge on business management. Suggestions from this research found that Ban Khlong Samrong Community Enterprise Ban Phaeo District Samut Sakhon Province still lacks knowledge in marketing. Therefore there should be an extension in the next market research project.

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.

The purpose of this study is to study the statement of problems in English writing and its relevant factors. The population and sample are students in the faculty of Business Administration in Business English Program Rajamangala University of Technology Phra Nakhon. The samples were 116. The research methodology is suNey research which is mixed method using both qualitative and quantitative method. The research instrument is questionnaire in English writing problems. The analysis of data conducted both descriptive statistics which are frequency percentage average and standard deviation and inferential statistics which are student-t and F statistics to analyze pair statistical differentiation of Shaffe method and the analysis of correlation coefficient. The results of the study can be depicted as follow: the highest frequency of the sample are sophomore students the high school grade of 12 average GPA in the range of 2.50-3.50 having experience in a Language school. The descriptive statistics of the sample parents are self-employed average monthly income of 30000 baht. The results about English writing problems are: incentive to write English at a high level English writing problems of overall sample at a high level. Sort the problems as follows: sentence structure grammatical and the use of words. Factors related to the writing problems in English showed that gender and parents occupation are statistically significant at 0.05 in writing English. The motivation to write English is related to problems in writing English without statistical significance.

This research presents the processing of fresh guava into guava juice product. to be kept for consumption and distribution in the local area It is an alternative career path that helps rural farmers earn more. and create additional careers for the family But farmers still lack the correct technology tools and processing methods in each production process. Therefore there was a problem of insufficient cleanliness taking a lot of time resulting in unacceptable quality and the production is low the postharvest engineering research group has conducted research to find suitable guava juicer. This study is based on working principles of food processing equipment in general use. Come as a guideline to develop improve and create prototypes. The original guava juicer was a grater roller squeezer. There is a guava-sized subsystem consisting of a sub-chamber with grated rollers and the waste water barrier system consists of a juice sieve chamber a waste separation room a spiral conveyer and a sweeper set. various parts that come in contact with the guava juice is made of stainless steel The power source uses a 1-horsepower electric motor a single-phase electrical system a voltage of 220 volts. The machine has the ability to block water at a rate of 250 kg / hour. The juice obtained must be filtered out again with a centrifugal bag filter capable of filtering water at a rate of 50 liters/hour. The prototype guava juice machine costs 40000 baht and the centrifugal filter bag costs 5000 baht. With just one such machine each of these machines can produce 28000 liters of guava juice/year (112000 bottles a year) able to get a return in 0.08 years with an average processing cost of 4.48 baht/bottle which is appropriate in engineering economics. In investment use a ready-to-drink guava juice machine. Fresh guava ingredients are available throughout the year and have 200 business days/year.

Analysis of the connection between herd immunity and vaccination uses a model for spreading infectious diseases with injections vaccines in three forms. The results were analyzed using complete graph to determine the relationship of group immunity to vaccination under the three forms hypothesis of vaccinations against the spread of infectious diseases and drawing a graph from Gephi program. The results showed that herd immunity was directly related to the number of people vaccinated. If the number of people vaccinated is high herd immunity will occur. But if the number of people vaccinated is low herd immunity will be difficult.