จำนวน Repository ( 1574 )

An Alerting Wireless Sensor System for Long Period of Immobilized Elderly in a Residential Room
An Alerting Wireless Sensor System for Long Period of Immobilized Elderly in a Residential Room

This paper presents a low cost wireless sensor network system which is developed to be an alerting system for relatives or caregivers when the elder is immobile for a long period. The alerting signal is sent via the Internet link and a mobile phone. Remote transducers capture input signal from the mobility subject. If the target subject has immobilized behavior for long period which is analyzed abnormal condition the system will send the alerting messages to a selected mobile phone or Internet link. After detection of motionless elder from the set–point periods the system immediately distributes messages via SMS on the mobile network and a server to warn a relative or a caregiver with the image option to send. The sensor modules have ease-ofinstallation with coverage area nearly 3 square meters 80 % of detection level suitable for a small room and a bathroom

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การพัฒนาวัสดุจีโอโพลีเมอร์จากเถ้าแกลบและเถ้าชานอ้อย
การพัฒนาวัสดุจีโอโพลีเมอร์จากเถ้าแกลบและเถ้าชานอ้อย

This research studies the potential for using waste ash from industrial and agricultural by–products as a geopolymer material. This paper presents a study of the resistance to chloride penetration and resistance to sulfuric acid of geopolymer mortar containing ground rice husk ash (RA) and ground bagasse ash (BA). Geopolymer mortars with constant liquid to ash ratio and similar flow were used for the tests. Compressive strength porosity chloride penetration test Rapid migration test of chloride depth chloride ion diffusion coefficient immersion test of chloride depth and weight loss with impressed sulfuric acid were investigated. Test results show that the workable flow of geopolymer mortar was in the range of 110–115% and was dependent on the ratio by mass of sodium silicate to NaOH and the concentration of NaOH. Extra water was used to improve the workabililty. In case of rice husk ash geopolymer mortar the geopolymer mortars with high strengths were obtained with concentration of NaOH of 15M with the sodium silicate to NaOH ratio by weight of 2.5. However the bagasee ash geopolymer mortars with high strengths were obtained with concentration of NaOH of 10M with the sodium silicate to NaOH ratio by weight of 2.5. The use of rice husk ash and bagasse ash produces geopolymer mixes with good strength and resistance to acid and chloride penetration. The resistance to acid and chloride penetration is higher with an increase in the sodium silicate to NaOH ratio by weight of 2.5.

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การสร้างบทเรียนคอมพิวเตอร์ช่วยสอนภาษาไทยเบื้องต้นเพื่อการสื่อสารธุรกิจ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
การสร้างบทเรียนคอมพิวเตอร์ช่วยสอนภาษาไทยเบื้องต้นเพื่อการสื่อสารธุรกิจ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร

The purpose of the study was fourfold: 1) to construct a computer-assisted-instruction (CAI) of Basic Thai for Business Communication at 2) to determine the efficiency of the CAI at 80/80; 3) to compare the student learning achievement of the CAI based on the pretest and posttest scores ; and 4) to determine the students’ satisfaction towards the CAI. The subjects of the study were the 30 first-year undergraduate students majoring in Finance and Marketing the Faculty of Business Administration at Rajamangala University of Technology Pranakorn in 2008. The instrument and procedures comprised 4 parts. Part one contains the 8 units of CAI of Basic Thai for Business Communication each consisting of examples an end-of-unit exercise and a 5-item-end-of-unit test to measure lesson efficiency. Part two is the try-out CAI to determine its efficiency based on the results of the three respective groups which were initially 6 students majoring in Accountancy then 10 students majoring in Accountancy and finally 30 students majoring in Accountancy from the Faculty of Business Administration. The data were analyzed in percentage and mean. Part three comprises the tests consisting of the 30-item pretest and posttest containing the shuffled pretest items to compare the student achievement. The learning achievement was determined by t-test. Part four is the 10-rating scale items to survey the students’ satisfaction towards the CAI. The data were interpreted in mean score.The results indicated as follows: 1) the CAI of Basic Thai for Business Communication can be effectively complemented to teaching and learning; 2) the efficiency indication of the CAI of Basic Thai for Business Communication was higher than the set criteria 80/80 at 84.58/87.44; 3) the posttest scores were significantly higher than the pretest scores at 0.05; 4) The students were extremely satisfied with the CAI of Basic Thai for Business Communication in all aspects at Σ x 4.37.

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พัฒนาการและการดำรงอยู่ของตลาดนัด
พัฒนาการและการดำรงอยู่ของตลาดนัด

The purpose of this research is to study the evelopment of fair markets around the suburban area in Bangkok to study the existence of the markets fair and to compare the differences of the markets fair in each area. The researchs designed by using mix methods collecting data of both quantitative and qualitative. The areas of which have been studied cover the free markets at 1) Wat Don Kai Dee in Krathumban District Samutprakarn 2) Mahidol University Salaya District Nakorn Pathom and 3) Wat Thong Sa-Ard Bang Bua Thong Nonthaburi. The main target groups involve the sellers the customers and the owners. The concerned local administration group is a secondary target group. Data collection consists of e survey participating observation in-depth interview and questionnaires in supplementary of the interview. Qualitative data analysis was context analysis. Quantitative data analysis were the statistics of frequency percentage chi-squaret-test and one-way variance. The result of the study are as follows:1 All of the above-mentioned markets fair have been established in order to respond to the need of the community in each area at the same time around 1997. The peak time of Mahidol Market Fair is on Friday during 7.00 14.00. for Wat Thong Sa-Ard and Wat Don Kai Dee Markets the peak times are around 15.00 -19.00. 2.In term ofthe customer behaviour of the markets the costomers mostly came to the market every time when it is available. They occasionally buy the ready-cooked food. For Mahidol Market the customers will walk to the market and most of them are students and staffs of the University. For Wat Thong Sa-Ard and Wat Don Kai Dee Markets most of the customers will go to the markets by motorcycles. In term of time spent at the market the customers at Mahidol and Wat Thong Sa-Ard Markets spent more than an hour whereas those at Wat Don Kai Dee spent less than an hour in average. In term of the behaviour of the customers going to the market those at Mahidol Market came with their friends whereas those at Wat Thong Sa-Ard and Wat Don Kai Dee mostly came with their families. In term of the factors affecting the customers for the services the most important one is a variety of the products. The products that have been bought the most in all markets is the ready-cooked food. The reason for the customers to buy products at the fair market is the convenience in travelling. 3.The different characteristics of the three markets are the types of the products. As for Mahidol Marketit is the market for working people therefore the ready-made products such as cooked food and clothing are the most favourite and easily to be sold out. As for Wat Thong Sa-Ard and Wat Don Kai Dee Marketsthey are serviced for the community in the evening therefore the most favourite products are cooked food and fresh products for making food at home as well as the products that are used in daily life. For the price of the products Mahidol Market has higher price than the other two markets. It is because the types of products at Mahidol Market are the luxurious one and the location of the market which situated at the Faculty of Environment Department of the University whereas the markets at Wat Thong Sa-Ard and Wat Don Kai Dee are on the roadside. 4.The existence of the fair markets has based on these conditions 1) the characteristics of the owners 2) the compliance with rules and regulations 3) location which is convenient for customers 4) a variety of the products 5) the peak time 6) the needs of the customers and sellers 7) the power purchase of the customers.As for the expansion of markets it is found out that the markets has 1) the physical expanse and the increase of facilities and 2) has the increase of sellers and the adjustability of costomers behaviour as well as 3) the various types of the products.

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The Way for the Development of Educational Management of Rajamangala University of Technology Phra Nakhon
The Way for the Development of Educational Management of Rajamangala University of Technology Phra Nakhon

The objective of this research was to finf the way for the development of educational management of Rajamangala Uaiversity of Technology Phra Nakhon by 1) studying input factoes:studentsinstructorsand teaching-learning facilitators 2) comparing learning achievemant of students classified by genderkind of former school curriculum of studyfield of studyformer certification hometownand enrollment system 3) studying the relationships between grade point average (GPA) of Business Administration Faculty before and after studying at the faculty and 4) comparing learning achievement of students who did and not study basic English and Mathematics. The sample studied were 1) all 10]349 students who enrolled in the academic year of 2009 and 2) 2440 students studying in the academic year 2010 selected by purposive sampling. The data was collected through questionnaires constructed by researcher.The statistics used for data Coefficientone way analysis of varianceand Schffes multiple comparison method.

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