The objective of this research project is to develop an effectively applicable prevention of heat for concrete masonry unit wall. By using kaolin mixture coir rice straw and husk as a major ingredient in concrete to replacing usual stone dust the hollow non-load-bearing concrete masonry units obtained had the size of 70 X 190 X 390 mm. The test results showed that the reliably ideal ratio of these mixture materials had to be from the combination of kaolin coir rice straw and husk by replacing them at 5%: 5%: 15% and 50/0. The block obtained also had other certain qualifications such as Weight at 6.08 kg. water absorption at 7.96% and compressive strength at 65.4 ksc. Moreover these combined materials harbored heat capacity less than the standard concrete masonry units with the weight not more than 29%.

Degumming process is a fundamental process for silk yam and silk fabric finishing. The main objective is scouring the substrate such as silk gum (sericin) wax and fatty acid from silk fiber. The principle of degumming process is destroying the peptide linkage of amino acid in sericin structure into a small molecule which is soluble in water. The hydrolysis reaction performed by acid alkaline enzyme surfactant as soap and high pressure steam process. The conventional methods favor degumming with soap and sodium carbonate. This process has a problem on the surface area of silk. Proteolytic enzymes can answer this problem but it seldom use because of a specific condition and high cost. For this reason the insteading of papain enzyme from dry latex of Carica payapa Linn. was decided to use for silk degumming at any condition study. This research was concerned with the silk degumming using papain enzyme form dry latex of Carica payapa Linn. The degumming process was performed at the temperature vary from 55 -85 degree Celsius time fromlO to 40 minutes and the amount of dry latex ranging from 0 to 4% owf in order to study the suitable condition for degumming and surface morphology. The efficiency of degumming process was evaluated by determination of tensile strength and stainiqgJest with dire~~ dyes (C.1. Direct Red 80~StaIDing result.will be opposed to degumming efficiency. The result was revealed; the appropriate conditions for silk degumming with dry Carica payapa Linn. s latex were recommended as follows : the amount of dry latex solution of 4 % owf at 75 degree Celsius for 30 minutes. The degummed fibers leaves lustrous soft and surface smooth. This condition does not have effect to tensile strength and fiber surface.

This study focuses on the required characters of the graduates from travel Industry by studying the 3 main groups of personnel of travel industry personnel of hotel and directors of tourism offices at Tourism Authority of Thailand both domestic and international. The results from 426 samples are being analyzed by F-Test at significant level 0.05. The study shows that required characters depend on types of organization agree that developments in ethics life and careers are needed for the travel industry. The students in travel Industry. Moreover the instructors and lecturers should have real experience on the topics and should train the students to be more creative and ready for the self development. The teaching concepts should pay more attentions on quality with more field experience. T!le emphasis on service minded is also recommended.

The purpose of this study was aimed to identify the main causes and prevention of occupational slipping tripping and falling in Thailand. The results revealed that number of the accidents caused by the occupational slipping tripping and falling was high ranked of all occupational accidents in every worldly part. This study consisted of 6 operational processes. Firstly it involved seeking for statistic data and information about number of the accidents the Office of Social Security 2008. Secondly analysis of most frequently-occurred businesses in Thailand was performed. Thirdly survey planning was established by which the questionnaires were instrumental to gather data and interviewing was carried out with those concerned personnel. Fourthly selecting the survey site and lastly analysis and conclusion was made to identify the causes of the accidents as well as recommendation on prevention of the accidents. The results indicated that the causes of problem consisted of the three following factors; personnel work-associated equipments and tools and workplace environment. For personnel factor the workers were inadvertent while on duty low educated lacked of experience and safety skill training seniority drunkard or drug addicted. Regarding to work-associated equipments and tools the workers did not wear the preventive equipments safety helmet safety shoes or working barefooted. Regarding to workplace environment the ground were blocked wet and rough including the climate in wet season from the month of May to October. There were no sign or warning sign of danger. It’s suggested that the preventive action for accidents included providing the appropriate training before real performance prohibiting the alcoholic beverage dirking or the use of illicit drug. Some behaviors should be modified for examples; the elder workers should be put in the job that is lesser in risk. Consciousness and campaign on safety should be urged. It should invest on safety equipments and safety shoes; including inspecting the ground and installing the easily visual sign or warning sign in risky area.

This paper presents compare results performance between two conventional controllers for bicycle robot. The bicycle speed control system was a highly nonlinear model multivariable and absolutely unstable. It has used for testing various design control techniques for low power. The objectives of this paper had to developed speed control which derived the mechanic model and experiment. Controllers are Proportional-Integral-Derivatives (PID) and on-off dynamic control. The dynamic system which also includes not stable friction effects the linear zed system model is used as a basis for the design to apply to speed. Computer simulation and experiment have been done controller are capable to control output speed wheel control system successfully. The results show PID controller better then on-off dynamic controller.