Nowadays many robot approaches to robust control problems are applicable only to linear systems for nonlinear systems; we may not be able to easily compute the solution to the optimal control problem as analytical solutions may not be available problem is that statically-stable wheeled mobile robots can easily become dynamically unstable. If the center of gravity is too high or the robot accelerates/decelerates too rapidly or is on a sloping surface so the power supply are necessary for input to actuator robot. This paper presents mode control solutions in power supply for support Omni mobile robot. The performance compare between Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) in Power supply. The experiment on the 5V/50W 100 KHZ prototype CCM and DCM converter which have been designed and builted with similar circuit layouts and component. Aspects to be compared are stability voltage and ripple factor. The both operation mode are discussed based on the simulation and experimental result.

This research aims to study The Information Perception About Public Relation of RMUTPs of Students and Staffs by using survey research. The questionnaires are used to collect data from a total of 400 samples. Percentage Mean Standard Deviation t-test one way ANOVA and analysis of variance are use for statistical analysis of data with the level of significance at 0.05. The result of this study show that: I. The difference in sample Demographic Characteristics has difference effect upon the information perception with the level of significance at 0.05 except age and status have no effect upon the information perception. 2. RMUTPs and staffs who received the information from medias of RMUTP has difference effect upon the information and when we compare the media perception with the level of significance at 0.05 this study found the difference between leaflets and Poster

This paper proposes a study of an Ozone generator. The generator under the study is designed using the electrode with uniform field. The electrode is constructed in the plane shape with positive potential. The transformer oil is used as insulating materials to prevent discharges around the electrode discharges in the air void depends on the size the types of dielectrics and level of applied voltage. Between the electrode and the air void there is acyclic dielectric. The stainless electrode with water is used as a ground potential. The breakdown depends on the electric field intensity. It is found that there is sufficient amount of ozone due to the ionization Development and design ozone generator this research electric field intensity on the water type and this can be used as a principle to construct a new type of ozone generator.

This research aims to 1) develop pork roll product from cultivated banana flesh and banana flour for vegetarian food business; 2) develop suitable and unique packaging for food product using cultivated banana flesh and banana flour instead of meat; and 3) transfer technology in developing food product using cultivated banana flesh and banana flour instead of meat for vegetarian food business. Regarding suitable amount of banana flour used in place of isolated soy protein in pre-emulsion preparation from 4 levels of banana flour used at 0 10 15 and 20 percent it was found that increasing amount of banana flour used in place of isolated soy protein caused significant increase of L* value in the product (p<0.05). Moreover hardness and flexibility in texture profile of the product were not significantly different from the control product (p>0.05). In terms of sensory evaluation tasters gave the highest score for meat-emulated reducedemulsion product that used banana flour in place of isolated soy protein at 15 percent. For packaging of pork roll product it was found that Model-A package was the most suitable with recommendations to add tight-closed material to prevent contamination from outside and to print expiry date as well as food safety certified sign. Furthermore consumers’ overall satisfactory in packaging model was found to be highest at the mean of 4.31. Finally transferring of technology in a form of training workshop in developing food product from banana flour for vegetarian food business for Ban Lak Khon Bakery Housewife Community Enterprise and entrepreneurs in Nonthaburi province showed that post-training test scores were significantly higher than pre-training scores at .05 level. This indicated that technological transfer in a form of real-practice workshop provided increasing knowledge in developing food product from banana flour for vegetarian food business. Moreover it was also found that trainees were highly satisfied in both overall service (mean of 4.85) and by-aspect: servicing staff (4.93) procedure/steps (4.87) trainers (4.83) and usefulness of service (4.75) respectively.

This research objective was to design the ginger candy compression machine and determine the efficiency and capacity for saving time and labor in pressing ginger candy for community enterprise groups Pim Malaherb Chiang Rai Province. Ginger candy compression machine consists of the main structure namely the extruder and power transmission systems. The machine was designed with two horsepower motors or 1.5 kilowatts to drive the shaft and to rotate the screw through the flange. This study installs the inverter to control the motor speed at 1000±10 1200±10 and 1400±10 rpm. The extrusion die had an average diameter of 9.7 millimeters. The results found that the motors speed that was suitable for compression was a Rotational speed of 1400±10 rpm. When the speed increased the efficiency and the working rate increased too. The amount of ginger stirred was used at 300 500 600 900 1000 1500 2000 and 3000 grams. The maximum efficiency was 90.85 percent. The efficiency increased with the amount of ginger stirred. The ginger candy compression machines engineering economic analysis results found that the machines operating cost was 18063.6 baht per year. When considering the machines operation at 792 hours per year the payback period was 6 months and 11 days.