จำนวน Repository ( 771 )
การพยากรณ์กำลังรับแรงกระแทกของปอซโซลานคอนกรีตด้วยแบบจาลองฟัซซีลอจิก
This objective research to study the possibility of used properties pozzolan material for concrete cement the ternary blend by fly ash metakaolin and silica powder by replacement cement partially on the strength for Flexural and impact by replace Portland cement. Consideration of concrete by varying the ratio there are three values are (w/d) of 0.38 0.55 and 0.8 follow on standards ACI 211.1-91 and variable amounts of replacement cement some. The ternary blend of the fly ash metakaolin and silica powder of percentage 0 15 20 and 25 and by weight of cement. and the control specimens (w/b) without contain fly ash kaolin and silica powder the slump test in the range of 3-5 cm and the use super plasticizer to control the slump test of concrete. By casting specimens of cylindrical diameter 10x20 cm cube 10x10x10 cm and the beam size 10x10x35 cm after curing 28 days and test compressive tensile and flexural strength of concrete all specimens The results showed that The increase will help improve the quality of the concrete physical properties 35 percent up on the cement with clay 15 percent will have the strength to most of the compression is reduced. The increased of compressive and Tension strength as the percentage decrease when replacing cement with fly ash 35 percent up on replacing cement with clay to pull the maximum percentage of 10 bending when replacing cement with clay at a ratio of 10 percent is paid bending. The maximum value of fly ash the flexural increased replace cement in the ratio of 50 per cent are increased the concrete with the most and the last place of cement. As a result of the porosity of the concrete with lower amounts of tightness concrete has increased. Fuzzy logic model is presented for predicting the strength for Flexural and impact by replace Portland cement. The result of the study from experimental case the graph of membership function are present (low medium and high). The results showed that the model Fuzzy Logic. Can be used fuzzy logics to predict as well
แนวทางการพัฒนาแหล่งท่องเที่ยวเชิงประวัติศาสตร์ของนักท่องเที่ยวชาวไทยและชาวต่างชาติ กรณีศึกษา อุทยานประวัติศาสตร์พระนครศรีอยุธยา
This research aimed to study Thai and foreign tourists about development guidelines of historical tourist attraction. 400 Thai and foreign tourists who came to travel at Ayutthaya Historical Park Ayutthaya province. A questionnaire was used as a research instrument. The statistics used for analyzing data were percentage mean and standard deviation. The results revealed that most the tourists were female ages 31 – 40 years old. Their education backgrounds were Bachelor’s degree. Their occupations were private companies. Their were Thai and Foreign. In general The Development Guidelines of Historical Tourist Attractions. The first of development guidelines were Attractive Factors (To what extent does each of the followings attract tourist?) and next were The capabilities to support tourism (To what extent does each of the followings support tourism?) and Management and Administration (To what extent does each of the followings affect tourism?). The top 5 of development guidelines were The remarkable and unique history Architectural and artistic beauty Greatness a good image and recognition Enough accommodations and Convenient access to tourist destinations
การพัฒนาวัสดุจากน้ำยางพาราร่วมกับใบยางพารา เพื่องานออกแบบผลิตภัณฑ์
Education and research is being Develop material that is mixed between rubber and rubber tree’s leaf for product designing. For product design This study is the use of a water timber with a rubber material. For use in product design Type of use and home decoration. In order to achieve the objectives of the research. The research was conducted by researchers at various stages. Data analysis and presentation. In the first part of the research questionnaire has been prepared for the development of product design. The study showed that the structure and the rubber leaves are fragile. It has adopted a water timber to merge. The experimental trial showed that the water timber formwork period is a major cause of water in the rubber sticking to the timber structure. When the latex has chemical and log Waldemar Carlo Night a period of use should not exceed three months at a water timber should be done with low viscosity. The color of the water timber must have a milky white. The collected data before designing it. The researcher has prepared all the tools of the 150 series found that most respondents as guest female age range 25-45 years as the rubber leaves of 94 percent 62.7 opine that the rubber leaves can be. made products of 5-10 species and the collection of data about materials latex with a rubber to make products from those carrying ask 150 people are of the opinion that it should make products partition 32.7 percent secondary. followed by the production of upholstered furniture 20.7 percent and 14.7 percent from the wallet to store data the researcher chose to put the material into a water timber with a rubber curtain room couch and wallet. When the prototype the researchers collected data on products made from latex and rubber leaves a series of 100 questionnaires showed that most of the respondents were female. Between the ages of 25-45 years the average undergraduate. There were government officers And have a monthly income of less than 5000 baht by the majority of respondents thought that. Rubber and rubber leaves the work piece is in good shape. Durable medium Can be used to make the products have 10-50 species with characteristics of both latex and rubber leaves. And all should be improved The research found that people are more interested in a piece of sheet material from a water timber with a timber. For product design Due to a combination of natural materials as a new material with a rubber-patterned rubber leaves a unique structure. It can also be improved by a more specific latex formulation. To be able to make the product even more.
การศึกษาอัตลักษณ์และการออกแบบสื่อประชาสัมพันธ์แบบ 2 มิติ และ 3 มิติ ผลิตภัณฑ์ยาสมุนไพรจากธรรมชาติกรณีศึกษาของสถาบันการแพทย์แผนไทย
The research project is The Education media relations identity and design in 2D and 3D for natural herbal products A case study of Thailand Institute of Medicine. To design and develop a curry puff pastry product packaging. Saraburi up The concept presented by local identity of offense to the principles of packaging design. According to a study by the packaging. Can be divided into two categories: The study found that : Case Studies of the Institute of Medicine Thailand. (Association of Traditional Medicine Thailand Saraburi) to make the design in 2D and 3D signage products from natural herbs. Based on the purpose and role in the action. Medicine Association of Thailand. Saraburi 1) Pharmaceutical Thailand 2) Massage Thailand 3) Medical Thailand can be divided into two types. 1) Packaging Design Based on the needs / or from sales in the market are also ranked fourth herb relieves disease high blood pressure Herbal Herbal steam. And herbal powder mask 2) Design Media Relations Based on the demand side the use of traditional medicine associations Thailand. The offense has four such promotions counterroll up Leaflets posters. The findings The results of the questionnaire to preliminary data for evaluating the satisfaction of the audience below The first shows the status of the respondents of the target groups. Most people who use the services of the association. (63.00 percent) sex is mostly female (70.00 percent) between the ages of 45-54 years (40.00 percent) professional groups are employed (31.00 percent) and education level is lower than a bachelors degree. (53.00 percent) The second assessed their satisfaction with the new forms of media groups that assessed satisfaction with the format of the new media groups. The most satisfying is the first package design is appropriate with a 4.73 average satisfaction level is the second most designs. Promotion Counter is appropriate with a 4.72 average satisfaction level is the third most research is interesting. And social benefits to the community as well with an average of 4.67 is the highest level of satisfaction. The overall result of this research is 4.63 the average satisfaction levels are highest.
ตัวแบบผสมเชิงเส้นสาหรับข้อมูลอนุกรมเวลาเชิงพื้นที่ที่มีฤดูกาลรวมอยู่ด้วยประยุกต์ใช้กับผลผลิตยางพาราในจังหวัดภาคใต้ของประเทศไทย
The objectives of this research are to propose a linear mixed model (LMM) for spatial time series with a seasonal component to apply the proposed model to monthly rubber yields in southern provinces of Thailand to forecast rubber yields in southern provinces of Thailand and to compare the performance of the proposed model to the Holt-Winters Additive Exponential smoothing model (Holt-Winters ES) and the seasonal autoregressive integrated moving average model (SARIMA). The proposed model is a linear mixed model (LMM) with spatial effects following a conditional autoregressive model (CAR model). Seasonal dummy variables and Fourier terms are two methods used to account for the seasonal effects. A Bayesian method is used for parameter estimation. The estimated monthly yields are used to forecast the monthly rubber yields. The dependent variables are the monthly rubber yields in each province. The effects considered are spatial effects heterogeneity effects and seasonal effects. The data are secondary data at a provincial level. The results show that the effects influencing on the amount of rubber yields are spatial heterogeneity and seasonal effects. The proposed model with sesonal dummy variables is the most appropriate model copared to the LMM with Fourier sesonal effects Holt-Withers ES and SARIMA. The mean absolute errors (MAE) are smallest in both model fitting and model validating parts. The proposed model with sesaonal dummy variables should be the first consideration for forecasting spatial time series with a seasonal component.