The study aims to examine the language use by Chinese students studying in the Department of Applied Thai Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon. The Participants were 10 Chinese tertiary students in a two-year-transfer program from Applied Thai Faculty of Arts Rajamangala University of Technology Phra Nakhon. The research instrument used in this study was Thai writing test. The collected data were analyzed by using qualitative approach. Textual analysis and thematic categorization were used to identify the results into four categories: grammatical errors (accuracy and acceptance) theme of story-telling organizational communication and others to describe Thai language used by Chinese students. The results of the study obtained from these Chinese students studying in Applied Thai Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon can be summarized as follows: 1. Grammatical errors (Accuracy and acceptance) concerns twekve sub-categories: (1) using words incorrectly according to the context and the meaning of each sentence (2) misused conjunction (3) writing long sentence without space (4) using words irrelevant in the clause or main clause (5) misspelling (6) using double negators (7) using several ๆ (repetition symbol for one word (8) No indenting content when opening new topic (9) using punctuations wrong (10) degree of words used were not equal (11) wrong sentence organization and (12) incomprehensible word usage. 2. Theme of storytelling: These participants had positive attitudes in story-telling by providing their impression on each point such as their impression on Thai culture Thai human relations appreciation for Buddhism’s faith scenery and atmosphere rules and etiquettes hotel and travel industries Thai foods Thai education as well as the beauty of Thai language. 3. Organizational Communication can be divided into three sub-categories: (1) using bullet points or number to introduce new ideas but the content was relevant to the same topic (2) Using narrative writing to describe story and (3) Using spoken language in narrative writing. 4. Others included eight characteristics as shown in the following: (1) Using verb “มี” (to have) at the start to the sentence instead of using noun or pronouns. (2) High frequency of “ที่” (relative pronoun) to modify clauses in several sentences (3) Using auxiliaries verbs to show hesitant for example “แทบไม่ (hardly) “ไม่ค่อยดี (not quite well) “เกือบ” (almost) and “ค่อนข้างดี” (quite well) (5) Using English word while writing in Thai (6) Using ellipsis point (….) at the end of the sentence (7) Using words to describe characteristics and (8) Arranging sentences by using Google Translate.

The purpose of this research was to study the behavior of students of Rajamangala University of Technology Phra Nakhon in receiving information via online media. The sample consisted of 390 undergraduate students of Rajamangala University of Technology Phra Nakhon in the academic year 2021 by accidental sampling. The research instrument was an online questionnaire. The statistics used to analyze the data were percentage mean and standard deviation. The results of the study on the behavior of students using online media for information exposure revealed that most of the students used their smart phones to receive information via online media for more than 4 hours on average every day. The behavior of receiving information via online media of students found that the type of online media that students used the most is Line followed by Messenger and YouTube. The purposes of the most exposure to online information are for communication and/or conversation followed by follow-up on current interesting events and for work channels such as online shopping and financial investments etc. The forms of information that most exposed to online media are entertainment followed by general knowledge and news. The content received from online media the most is movies dramas followed by songs lyrics melodies and currently interesting issues.

This study Development of lower central provinces 2 as smart city tourism under the concept of BCG Economy aims to study guidelines for the development of lower central provinces 2 to be smart tourism cities under the concept of BCG Economy. The research employed a Mixed Methods Research.The quantitative research sample was 400 tourists who travel in lower central provinces 2 the research tools was a questionnaire with open-ended questions. the data is described by frequency percentage and standard deviation and qualitative research is 20 key informant the research tool was an open-ended questionnaire for in-depth interviews. Most participants were female 20-29 years old had obtained a bachelor degree employment monthly income in the range of 20001-30000 baht experience travel trip in lower central provinces 2 6 time or more spend 3001-4000 baht per trip 2 days per trip tourists travel for a vacation during the months of November to December. Suggestions for the development of lower central provinces 2 to be smart tourism cities under the concept of BCG Economy. 1.use appropriate technology for tourism 2.use technology that tourists can easily use 3.promote community tourism 4. create awareness among tourists to cherish tourism resources. 5. relevant agencies should work together. 6. there should be research studies and apply the research results correctly.

This research aimed to study the causes of changes in water quality and compare the water quality in Khlong Bang Khen Mai when the seasons and sampling points are different. These factors may cause a change in water quality. A total 50 of water samples were collected from 5 sampling points each point approximately 300 meters apart for a total distance of 1.5 kilometers. They cover three seasons such as winter (October 2020 to February 2021) summer (March to May 2021) and rainy (June and July 2021). Three parameters of this research which consist of both the chemical and physical quality parameters are pH Dissolved Oxygen (DO) and Electrical Conductivity (EC). The result shows that the average pH has ranged from 7.10 - 7.74 the dissolved oxygen (DO) was in 1.80 - 2.84 mg/L and the electrical conductivity (EC) was in the range of 327 - 517 μs/cm. A two-way analysis of variance is a statistical method used to compare the water quality in Khlong Bang Khen Mai. The results indicate that the test differences between seasons affected the change in water quality in all parameters with a statistically significant level of 0.05. Afterward the comparison of multiple comparisons by Scheffes method showed that the pH and dissolved oxygen (DO) in the rainy season were significantly different from winter and summer at the level of 0.05. For the electrical conductivity (EC) there was significant differences between summer and winter at the 0.05 level.

The purpose of this research was to design and develop products from polyester yarn scraps according to an eco-economic design concept. The workpiece is formed by the compression molding machine used in the industrial system. Researchers studied the waste materials used in various processes of manufacturing in textile establishments to increase their value by designing a new product or by developing polyester yarn scraps. According to the research process with the upcycle method that focuses on using resources for maximum value by turning the scarps into new products and eco-design concepts to increase the value of plastic polymer waste one of the concepts of resource efficiency (4Rs) by recycling and design process. The research focuses on the process of polyester yarn scrap forming especially from the textile industry with the potential to be re formed to create new products with beautiful shapes and unique patterns. From polyester yarn scarps through the extrusion process. By using the compression molding machine with a compression force of 80 tons the temperature range and the time are controlled appropriately. Under the mold prototype hat from or flash mold.