Rajamangala University of Technology Phra Nakhon
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การพัฒนากลุ่มจังหวัดภาคกลางตอนล่าง 2 เป็นเมืองท่องเที่ยวอัจฉริยะ ภายใต้กรอบแนวคิด BCG Economy
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2565This 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 20,001-30,000 baht, experience travel trip in lower central provinces 2 6 time or more, spend 3,001-4,000 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.Rajamangala University of Technology Phra Nakho
หนังสือเทคโนโลยีความจริงเสริมการเรียนการสอนสุภาษิตไทยสำหรับ ชั้นประถมศึกษาปีที่ 5
Get PDFโครงงานพิเศษ (ทล.บ.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2564The objectives of this study were 1) to Produce augmented reality technology book for teaching Thai proverbs for grade 5, 2) to compare the achievement before and after studying the augmented reality technology book for teaching Thai proverbs for grade 5 Grade 5, and 3) to study the satisfaction of books on augmented reality technology for teaching Thai proverbs for grade 5 using 2 sample groups 1) a group of experts to assess satisfaction, amount 3 people, who are teachers in Thai language courses; 2) a group of 40 primary education students in Puk Chit School 5 obtained by a simple random method by using questionnaires to collect data The statistics used to analyze the data were frequency, percentage, mean, and standard deviation. The results of the study found that Augmented reality technology book for teaching Thai proverbs for grade 5, overall satisfaction was at a high level (̅=4.10, SD=0.56) and the experimenters used augmented reality technology book media for teaching. Thai proverb for grade 5, the average academic achievement after school is higher than before (̅=3.96)Rajamangala University of Technology Phra Nakho
การออกแบบล้อรันแฟลทสำหรับรถยนต์นั่งส่วนบุคคลด้วยระเบียบวิธีไฟไนต์เอลิเมนต์
Get PDFวิทยานิพนธ์ (วศ.ม.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2564The objective of this research was to design run flat wheels made of aluminum for passenger cars and investigate the stress, strain, and deformation of run flat wheels and their components. The original 17 inch run flat wheels were made of AISI 1020 steel with a weight of 11.3 kg per wheel. The main problems were from the high-level weight as well as the untighten connection, together with noticed gaps taking place between the run flat wheel and the wheel. Therefore, in this study, the AISI 1020 material was changed to the Aluminum 6063 T6 material. The Numerical methodology using the finite element program was also chosen to indicate the comparative differences in the strain values engaged at various locations of both run flat wheels and pan wheels. The results obtained from both approaches using SolidWorks Simulation Program uncovered the consistent results of the experiments with a 10-16% difference in strain values. The complicated 17 inch wheel pan model was next built using reverse engineering and employed as a key reference to design the cross-sectional area of the new run flat wheels made of Aluminum 6063 T6. All these two parts could be connected tightly. The SolidWorks Simulation program was employed to design and examine the strength of both designed aluminum run flat wheels made of aluminum and the wheel pan made of 17 inch aluminum alloy to build passenger cars. The finite element model was furthermore applied for the run flat wheels made of aluminum 6063 T6 and it provided run flat wheels composed of 2 light weighted pieces. The stress, strain, and deformation measured were proven and suggested in the test. The output Von Mises stress did not exceed the Yield stress, within the linear elastic limit and 3 times safety integrity value. The results from the study were that the obtained run flat wheels allowed the driver to continuously drive for a further 50 kilometers at a speed of 50 kilometers per hour without losing control. They allowed possible tire repairing or replacing when situated in a safe and convenient location.Rajamangala University of Technology Phra Nakho
ผลของสารสกัดหยาบด้วยเอทานอลจากสมุนไพร 7 ชนิดต่อการไล่มด
Get PDFวารสารวิชาการและวิจัย มทร.พระนคร, ปีที่ 16, ฉบับที่ 2 (ก.ค.-ธ.ค. 2565), หน้า 187-197This research aims to study the ant repellent effects of the crude ethanolic extracts from 7
herbs; Piper nigrum Linn., Alpinia galanga (L.) Willd, Ocimum basilicum L., Cymbopogon citratus Stapf, Citrus aurantiifolia (Christm.) Swingle, Citrus hystrix DC, and Stemona collinsae Craib. Whatman filter paper was dipped with each concentration of the crude ethanolic extracts (0.625 1.25 2.5 and 5 % w/v) and placing the bait on a treated filter paper. The experiments were conducted in the natural. The numbers of weaver ants were recorded at 0 - 30 minutes. From the results, the crude ethanolic extracts at 5% w/v of A. galanga was the most effective for repellent the ant, (repellent rate; %R = 94.72 ± 2.39) followed with C. citratus (%R = 89.45 ± 3.85), S. collinsae (%R = 82.92 ± 4.47), and P.nigrum (%R = 81.20 ± 5.92). The repellent rates of those crude ethanolic extracts were significantly difference from distilled water which use for the negative control (P < 0.05). The crude ethanolic extract of A. galanga at concentration 5% w/v was prepared as spray, cream, chalk and powder. At 30 minutes of the observation, the ethanolic extracts of A. galanga spray was the best ant repellent effect (%R = 100). The result from questionnaires reveals that a spray preparation was the more satisfaction for the using ant repellent products.Rajamangala University of Technology Phra Nakho
การประยุกต์ใช้ฟิล์มแข็งเคลือบผิวเพื่อยืดอายุพันช์เอียงในกระบวนการตัดขอบ
Get PDFวารสารวิชาการและวิจัย มทร.พระนคร, ปีที่ 16, ฉบับที่ 1 (ม.ค.-มิ.ย 2565), หน้า 28-40The objective of this research is to increase the tool life of trimming process by surface coating technology. The procedure of this research consists of two sections. In the first section, the friction coefficient was investigated with the ball on disk technique by using a tribometer. Steel ball was produced from cold work tool steel grade SKD11 (JIS) hardened to 60±2 HRC. Two types of surface coating, namely AlCrN and TiAlN, were conducted by PVD technique. Disk material used in this experiment was made by stainless steel JIS; SUS 304 of 2 mm thickness. For the second section, the wear tests of trimming die were performed by using flat punch and inclined punch 45 degrees without surface coating as well as the inclined punch 45 degrees coated with AlCrN and TiAlN (PVD). Workpiece material used for the wear test was stainless steel JIS; SUS 304 of 2 mm thickness. Additionally, the finite element analysis was carried out for explanation the deformation of the workpiece during trimming operation. Although the friction coefficient of the surface coating was higher than non-coating, it could be extended the tool life ostensibly. As the result of FEM, the inclined punch 45 degrees could be generated the long sheared surface more than the flat punch. This is due to the internal stress of workpiece that did not connect from the punch to the die, so the crack propagation would be delayed. The inclined punch 45 degrees coated TiAlN has a highly durable which can be used up to 5,000 strokes.Rajamangala University of Technology Phra Nakho
อิทธิพลของรูปแบบความเร็วอากาศอบแห้งต่อการอบแห้งข้าวเปลือก
Get PDFวารสารวิชาการและวิจัย มทร.พระนคร, ปีที่ 16, ฉบับที่ 1 (ม.ค.-มิ.ย 2565), หน้า 165-176The objective of this research was to study the influence of drying air velocity characteristics on paddy drying. The pneumatic dryer prototype was used in this study. Test drying 15 kg of Hom Pathum paddy at 22 – 25% initial wet basis moisture content was tested drying under the drying air temperature 80OC until its moisture is 14% wet basis with the two drying air velocity characteristics. The first characteristic of drying air velocity is constant at 12.80 m/s and another is reduced velocity every 15 minutes throughout the test process from 12.80 - 8.44 m/s. Drying in a vertical tube with a diameter of 3.81 cm and height 1 m for study the drying behavior, drying rate (DR), specific energy consumption (SEC), and thermal efficiency of drying. The results showed that drying with constant air velocity gives a shorter time, higher drying rate, lower primary SEC consumption, and higher thermal efficiency than drying with reducing air velocity.Rajamangala University of Technology Phra Nakho
การตลาดออนไลน์ของสารสกัดจากหญ้าเอ็นยืดหมัก เพื่อส่งเสริมเศรษฐกิจยั่งยืนในชุมชน วิสาหกิจเกษตรปลอดภัยบ้านม่วงเจริญราษฎร์ ตำบลบ่อสวก จังหวัดน่าน
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2564The survey team aimed to develop online marketing on Plantago Major Linn. to Promote Sustainable Economy at Ban Muang Charoenraj Agricultural Safety Community, Nhan Province. Ban Muang Charoenraj community is an agricultural community enterprise which has been recently established for two years and begun to cultivate and produce Plantago major L. products and need to develop a better online marketing approach for their interesting products. The research team, therefore, introduced the new approach including the choice of plant stage selection, raw material preparation, making fermented Plantago major L. extract, determination of the properties of the plants that are anti-inflammatory and antioxidant and their antimicrobial activity. The plant extracts were thus developed as a key ingredient in facial creams because of their such good characteristics helping to promote the channel of online marketing. It was on the basis that Ban Muang Charoen community has the plants, good raw materials, good products, one already made online media system of Facebook, therefore, the online media system was suitably developed further and used to be a medium for people to have the opportunity to know more about such products. The work that the research team relied on “Smart Gold principles” which can analyze online marketing practices for two stores. It helped create an opportunity to develop the store to generate more income to be able to improve and develop sales management in the future, obtain more page views, and introduce the community get involved in selling a wide variety of products online as well as transferring the utilization of Plantago major L. from the research team to the community. In the analysis, it was found that it was necessary be able to increase sales by at least 20 percentages, measurable, attainable, consistent with reality, be able to learn and implement in no more than three months. In addition, 2) obtain management guidelines that need to be supplemented further; there must be a promotion to control the quality production of Plantago major L. in the community. Quality and refrain from using pesticides. By promoting the provision of a one-stop service to the community, the online marketing will be a source that can manage the linkage of raw materials to the buyers. Chemicals related to herbal extraction process and the materials for making cosmetic products would be set for creating ease of operation for customers to be able to track budget used, and to easily manage the product quality along the way with a quick and reliable delivery service. It is necessary to encourage a clear analysis of the business plan of each store. From these necessities of the research to promoting online marketing channels for the Ban Muang Charoenraj Agriculture Enterprise Community, a communication channel and promotion for customers can generate income for the anywhere, anytime, without limitation suitable for the current situation.Rajamangala University of Technology Phra Nakho
การศึกษาการบำบัดน้ำเสียจากการย้อมผ้าแบบเคลื่อนที่โดยใช้ถ่านกัมมันต์จากกะลามะพร้าว
No full textรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2564The dyeing industry both of business size and household size where the remaining water from the dyeing process is dumped into pipes and flows into natural water sources, causing sewage problems. Therefore, a column type wastewater treatment system has been developed by using a filtration system along with an adsorption system. The materials used to treat the wastewater from dyeing are gravel, sand, charcoal from wood and activated carbon from coconut shell. The study was conducted on the synthesis activated carbon from coconut shell using for color and molecules adsorption. The amount of activated carbon from coconut shell was varied at 200, 400, 600 and 800 g applying with filter media and other adsorption materials taking 1 hour to treat the wastewater from dyeing. The parameter using to measure water quality consisted of color value, pH, suspended solids, conductivity, turbidity value, COD and TKN to indicate the water quality before and after treatment evaluating the efficiency of the wastewater treatment system. The best ratio that can treat the color is the formula containing 800 g of coconut shell activated carbon. It was able to treat the color equal to 5.94 SU or 99.43 percent compared to the wastewater before treatment.Rajamangala University of Technology Phra Nakho
อัลกอริทึม T-fuzzy ดีไอดีล
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2564In this research, we will study an algebraic structure, d-algebras. Then we establish an algorithm to check any sets in d-algebras if they are ideals or T-fuzzy d-ideals. Moreover, we investigate some related properties in d-algebras.Rajamangala University of Technology Phra Nakho
มโนทัศน์การตลาดบริการของธุรกิจคาเฟแนวอัตลักษณ์แบบสร้างสรรค์
Get PDFวิทยานิพนธ์ (คศม.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2565The purposes of this research were 1 ) to study the consumer demographic
characteristics of creative identity cafes. 2) To study the level of factors affecting the
marketing concept of creative identity cafe business service. And 3) to analyze the
components of the marketing concept of the creative identity cafe business service.
The sample group used in the research was a group of 4 1 0 consumers who used to
use the services of creative identity cafes. This is a quantitative and qualitative research,
collecting data by using questionnaires and semi- structured in- depth interviews. The
statistics used in data analysis were frequency, percentage, mean, standard deviation,
factor analysis and content analysis.
The results showed that: 1 ) the demographic characteristics of consumers of
creative identity cafes found that most of the consumers who used the service were
female, aged between 2 0 - 2 9 years old, with bachelor's degree as a student with an
average monthly income of about 10,000 baht per month, living in a family with about
3-4 people and living in a detached house. 2) Factors affecting the service marketing
concept of the creative identity cafe business, it was found that all 70 variables had
an overall average between 3.84-4.42, indicating that consumers were focusing on this
aspect at a high level. The highest variable affecting the service marketing concept of
the creative identity café business was variable 67, which was the creative identity café
business that was cleaned regularly, followed by variable 40 found that the employees
were enthusiastic to serve. The least important variable among consumers was the 8th
variable, which was the food and beverages variable that indicated nutritional value
and 3) the components of the marketing concept of the service business of the creative
identity cafe business consist of 5 components as follows: 1) Sanitary 2) Spot ( the
point that is easily accessible) 3) Perceived Value 4) Aesthetic 5) Marketing. And from
the results obtained from the quantitative analysis and the results of the semistructured
in- depth interviews in the qualitative research, the researcher has developed a marketing concept in the service of the creative identity cafe business.
It's called "SSPAM Model". To provide customers with services from products that are
meticulously crafted and beautiful with safety and hygiene standards that are worth
more than the price paid, including services with convenience, speed and easy access.Rajamangala University of Technology Phra Nakho