This research is Design and construction board led dot matrix was create for study about microcontroller. It apply to use in communication & information indoor type by sending messages from computer on internet network systems. This research has implemented LED dot matrix display for display message characters. The research is composed of 4 major parts: the first part is LED dot matrix display with dimension of 16x192 dots. The second part is the control circuit by using a micro-controller ARM 7 which receives the data from computer the third part by using Microsoft Visual Basic. the forth pat program remote desktop. From tests and results we have found that it can display the message characters which move from Internet System successful.

The purpose ofthis research is to study the factors affecting the undergraduate students achievement on Research Methodology Course Rajamangala University of Technology Pranakhon Chotiwet Campus. The sample groups in this research are the third year students of Chotiwet Campus majoring in Food and Nutrition (4 -year -Programme) totaling 133. The research was done by a definitely random selection. The instruments used in data collection are the questionnaires and the statistics by means ofvarious uses namely percentage value frequency value Arithmetic means value standard deviation value Pearson product moment coeffICient correlation and Step -wise multiple regression analysis. The results ofthe study are asfollow. 1. Most ofthe sample group arefemale their grade point averages are 3.00-3.49. They require further their studies in Master degree. As for thefuture career they want to own private business. The mid-term scores made by the sample group averages at 19.5. Asfor the attitude of the sample group to do research most ofthe students thought that it was diffICult but they can possibly do. Some students revised their lesson from time to time. In term ofthe class participation it is found that the sample group can take part in class in an moderate level and personal problems ofthe sample group are in a low level. 2. Factors afficting the students achievement on Research Methodology which imply signifICantly in statistics at 0.05. Can be divided into twofactors (1) cumulative grade point average and (2)studentsproblem ofhow to adjust to the study environment. 3. The two factors can be predictedfor the achievement on Research Methodology at the percentage of31.2 and can beformed as model ofthe Research Methodology achievement predictive equation as follow Y=11079(x1)+3349-1081(x7)

Product development of End Mills AISI M42 tool steels products by cryogenics treatments after process by heating system through austenite structure had been conducted in order to increase effectiveness of wear resistance geometry designed in quenching figures quality of chip flow and improved by the cutting edge with sub-zero and heating system through producing the cutting tools on the rim of rake angle at 8° and 12° and 15° austenite temperature at 1210 ° C varied in room with temperatures at 35°C lower - 70 °C and -196°C respectively. The tempering at 535°C had been three time. End Mills figures then had been operated by 5 axis CNC grinding machine for the tools. The experiment had been conducted in accordance with the AISI 1045. Such as result revealed that stress relive of tools. it hardness between 67.7 up to 68.3 HRC and reduced I HRC. Having compared with the un-stress relief it revealed that on the 15° rake angle shear force increased 8° and 12° respectively. The result had denied the Shear theory however resisted against erosion better than 12° and 8°. The result revealed that cooling at - 196°C would help increase more 15% of cut effectiveness. Cooling treatment below 0° had tended to positively resist the erosion of the out tools. With its development of control of degrees of cooling substance acid the quality of products would be better increased. Such a result could be based of the development of product lines on highly-qualities cut tools which was domestically produced.

The research aimed to study and compare : 1. foods and nutrition knowledge of adolescence by looking at gender and level of education. 2. the awareness of foods and nutrition by comparing gender and level of education. 3. the practice of foods and nutrition by comparing gender and level of education. 4. study the relationship between knowledge awareness and practice of foods and nutrition of the adolescence in Muang District Prachinburi Province. Tests and questionnaires were used to gather the data from 346 samples. The Stratified Random Sampling was used. The data were analyzed by using percentile mean standard deviation t-test one way analysis of variance and Pearson’s Product moment correlation at 0.01 - 0.05 significant level. The study found that 71.4% of the sample was female and 41.0% was high school graduate. The sampling adolescence had good knowledge of foods and nutrition. Different gender had significantly different level of foods and nutrition knowledge at 0.01 while different level of study had no different level of foods and nutrition knowledge. The sampling adolescence had foods and nutrition awareness at high level Different gender had significantly different level of foods and nutrition awareness at 0.01 while different level of study had no different level of foods and nutrition awareness. The sample group had good foods and nutrition practice at moderate level with no difference between gender and level of study. There was a positive relationship between foods and nutrition knowledge awareness and practice of the adolescence at 0.05.The relationship between knowledge and awareness was moderate and the relationship between knowledge and practice was low.

Endocrine disrupting compounds (EDCs) are the substances that disrupt normal functions of hormones produced by endocrine glands affecting to system and organism functions under hormone control altering from nature conditions consequently cause adverse health effect in human and other living organisms. Most EDCs characteristics are lypophilic and persistence in environment. The hazardous EDCs produce from human activities contaminating in environment such as water air soil and food are produced etc.