The objectives of this research are to develop the welding process of copper tube for refrigeration in air conditioner by using rotation brazing table. The key design is the use of rotary head for nitrogen and rotary head for cooling water in assembly jig nitrogen discharge to prevent the internal welding soot to remove the soot that may occur during welding from piping system and to cool down the profile quickly. The result of water cooling to prevent that damage due to the heat of welding. The result from designing and creating of rotation brazing table to substitute stationary welding found that there is the reduction of machine cost by 11.61% or 46000 Baht/machine reduction of usage space 8.75 square meters or 74375 Baht increase of productivity by 93.48% reduction of nitrogen consumption by 98.20% or 2593 Baht/month reduction of support tool in production 75000 Baht per one rotation brazing table reduction of tiredness from working by 30.24% or equal to 137 manual works per day and reduction of usage of consumable material that can cause of greenhouse gas in form of trash such as cloth glove 1.40 KgCo2 per year leather glove 12.5216 KgCo2 per year nitrogen gas 0.1784 TonCo2 per year and water 0.54 KgCo2 per year. All of these can support the competition and dynamic change of industrial air conditioner in the future sustainably.

This survey research aimed to study ethics of information uses and ethical perception of Faculty of Liberal Arts’ students Rajamangala University of Technology Phra Nakhon. Sample group that stratified by fields was 309 undergraduates studying in academic year 2015 from Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon. The data collecting tool was questionnaire about ethics of information uses of Faculty of Liberal Arts’ students Rajamangala University of Technology Phra Nakhon. The statistic analysis used percentage and standard deviation. The results showed that : 1. Students had totally ethics of information uses in medium level. Its considered each aspect found that students had the most of ethics of information uses in aspect of information dissemination followed by an aspect of information property and information accessibility. 2. Students had totally ethics of information uses in aspect of information accessibility in medium level. Its considered each item found that the most item that students had ethics was that they usually used their user ID and their passwords to log in the university’s internet system followed by they usually used their user ID and their passwords into information searching system in databases. 3. Students had totally ethics of information uses in aspect of information property in medium level. Its considered each item found that the most item that students had ethics was that if they utilized pictures from books journals newspapers to compose their report or to publicize they would cite to sources of pictures. And if they utilized articles from journals newspapers web sites to content analysis as case study they would cite to sources of content. 4. Students had totally ethics of information uses in aspect of information dissemination in good level. Its considered each item found that the most item that students had ethics they usually avoided to use statement or pictures that was contrary to law and social good moral for example; pictures of rove false statement etc. followed by students usually avoided to use statement or picture that showed violation of privacy rights for example ; defamation statement photomontage etc. 5. Students had the ethical perception involved to information uses in medium level. Its considered each item found that the most item that students had ethical perception was that the utilization of others academic papers for being parts of its own study they had to cite sources every time otherwise its considered that was illegal and unethical. Followed by the utilization of other words or other interviews to compose its own report or its own presentations they had to be allowed otherwise its considered that was copyright infringement.

The objectives of this research are to study the production to find the proper ratio to test the properties to suggest the implementation and to transfer the technology of high strength milk carton waste artificial wood mixed with poly ethylene terephthalate (PET) plastic waste. The ratios of this artificial wood included milk carton waste: PET plastic waste equal to 80:20 75:25 70:30 65:35 and 60:40 by weight. The milk carton and PET plastic wastes were grinded though sieve no.4. The artificial woods were casted by hot compression with 180 degree of Celsius for 5 minutes. The samples tested follow the TIS.966-2547 standard. From the results the 60:40 of ratio was the proper ratio which can pass the standard. The increasing of PET waste effected to decrease the density moisture and swelling of properties. In case of bending strength elastic modulus and tensile strength perpendicular to surface the increasing of PET effected to decrease their properties. The developed artificial wood mixed with milk cotton waste and PET plastic waste has the possibility to implement in decoration and construction both interior and exterior wall building. These results can register the petty patent and write the research paper which to transfer the technology.

The objectives of this research are to study the production to find the proper ratio to test the physical mechanical properties and thermal conductivity to suggest the implementation and to transfer the technology of light-weight precast concrete wall panel products mixed with container foam wastes. Design the ratios of Portland cement type1: coarse sand: lime stone: water equal to 1: 2: 4: 0.7 by weight and adding the container foam wastes equal to 0 0.025 0.050 0.075 and 0.1 by weight. Casting the light-weight precast concrete wall panel products by pouring the concrete into the mold which installed the steels. Test the properties follow TIS.2226-2548 and TIS.878-2537. From the results the proper ratio of adding container foam wastes was 0.075 by weight which had perfect general characteristic 16.48 MPa of compressive strength no bending when installed in common behavior 8.86% of water absorption passed type1 of hardness test passed type 2 of impact test 2014.54 kg/m3 of density 4.30 MPa of bending strength and 0.228 watt/m.K of thermal insulation. This light-weight precast concrete wall panel product can use as the thermal insulation wall in building. Moreover the developing product can apply to register the petty patent.

This research aims to produce scrap page kaolin of brick construction. The kaolin clay ratio of 100: 0 80:20 60:40 50:50 40:60 20:80 and 0: 100 by volume Add mixed with rice husk and rice 15 percent by weight A total of seven ratios. According to standard tests or TIS. 77-2545 ordinary story brick building. The moisture content and water absorption is increasing. While density Thermal conductivity resistance flexural and compressive strength tends to decrease. The best ratio of 80:20 by volume with compressive strength 43.16 kg / cm 2 and 24.93 percent water absorption. Criteria standard of TIS. 77-2545 requiring compressive strength not less than 35 kg / cm2 and water absorption must not be higher than 25 percent. Can be used in the manufacture of brick construction including building decorative wall can be developed into products. Because skin color and beautiful