Sn-xAl powder complex materials are used as coating in building materials. This study coats complex colloid mixed with Sn-xAl powders and polyethylene on glass to examine the shield effect on electromagnetic interference (EMI). The results show that adding Al to the Sn-xAl powders can increase the electromagnetic interference (EMI) shield at lower frequencies. Notably, the number of cavities in the coating layer increased with the coating thickness, with the result that the EMI shield could not improve with an increase in the coating thickness at higher frequencies.

In construction process, the formwork must be in contact with concrete to help the concrete solidify and fix the shape. Coating the formwork with a polymer can prolong its service life by reducing the amount of concrete sticking to the mold. Herein, an aluminum template substrate was coated with polyvinylidene difluoride (PVDF) or polyurethane (PU). Aluminum template material analysis was conducted, polymer film thickness was measured, and weather, moisture, pollution, salt spray, abrasion, impact, and acid and alkali resistance tests were conducted, as were tensile, bending, adhesion, hardness, and salt water resistance tests. Cement adhesion resistance was repeatedly tested. The experimental results indicated that the PVDF-coated template was superior. The novel PVDF Aluminum template exhibited high corrosion resistance and can be used in building materials, for example, in ceilings, partition walls, curtain walls, roof panels, and roof trusses. For reference, it can also be applied to ship structures and seaside and wind power generation projects.

This study coats complex colloid mixed with Sn-xAl powders and polyethylene on glass to examine the shield effect on electromagnetic interference (EMI). In addition, the sputtering specimens and powder coating specimens were compared. The results show that adding Al to the Sn-xAl powders can increase the electromagnetic interference (EMI) shield at lower frequencies. Notably, the number of cavities in the coating layer increased with the coating thickness, with the result that the EMI shield could not improve with an increase in the coating thickness at higher frequencies. However, the EMI shield of sputtering films had a tendency to increase as the thin thickness increased. The Sn-40Al undergoes a dispersing effect which forms a fine overlapping structure, thereby improving the low frequency EMI shielding. In addition, the Sn-20Al powders possessed the properties of a small particle size, closed structure and higher electric conductivity which improved the high frequency EMI shielding. For the sputtering films, the annealed treatment not only had higher electric conductivity but also increased the high frequency EMI shielding.

The goal of this study is to achieve sustainability environment. According to our previous study in the nine Indicators of Taiwanese Green Building, and the Canada GBTools evaluation, combined with Taiwan’s leisure farms, we simulate evaluation factors of sustainability for the practical environments in Taiwan’s leisure farms. We then classify the evaluation factors according to its tendencies and create an expertise questionnaire using these tendencies. Through the results of the expertise questionnaires, we understood how much the experts valued ecology, energy, resource, society, and economy. We then further analyze the cause of the varying degree of attention paid to each category according to its attributes . SPSS statistic software is used as the analytic tool. Through factor analysis and the deletion of factor loading, this study attained four kinds and nine evaluations as well as 29 evaluations points: "perfect environment", "resources management ", "energy efficiency management". In addition, "complete plans and evaluations", "environment workload", "environment plans", the conclusion is that the most valued points for the business are: "environment plans", "environment workload", "perfect environment". However, the most valued points for the government are: "perfect environment", "resources management ", water resources and green materials. As for scholars, the most valued points are: "perfect environment", "environment workload", "using local renewable materials" as well as "environment plans". Analysis of Variance, the conclusion is that the most valued points for the government and scholars are: "natural sounding usage", "legality of base selection", "effectiveness in pollution process", "light efficiency control management systems", "simplified interior design". Finally, LSD analysis attained five evaluation points: "natural sounding usage", "legality of base selection", "effectiveness in pollution process", "light efficiency control management systems", "simplified interior design". The result of this study shows that implementations would be much easier if the necessary equipments and space were put into consideration during the planning stage of recreational farms. Lastly, this study suggests leisure farms choose their operating method carefully. The operating method should meet the nature of leisure agriculture; it should also consider utilizing the sustainable development assessment indicators and relevant decorations in the future. If a correct operating method is chosen, it will facilitate an environmentally friendly leisure farm. Keyword: Recreational Farm, Sustainability, Factor analysis.

Night market is a unique business arena that always create a happening scene in TaiwanBesides providing a space for people to spend their leisure time and money, night market is also a place where the consuming-culture that can only be found in Taiwan.In fact, it fits the current consuming mode of our society, and yet it has become the main night activities for people. The purpose of this article is to investigate consumers impression and experience of visiting a night market, and for simplification, we only recruit the famous Tai-Chung FengJia Night Marketin this survey. A total of 150 questionnaires were distributed during the peak hours (1900~2300) of the night market every day. The survey has reflected the factors that affect consumers night market impression are environment, diversification, attractiveness, information, customer service, price, quality and convenience. Meanwhile, the survey has also divided the consumers of FengJiaNight Market into threedifferent clusters, namelyShopping-oriented, Brand-oriented and Leisure-oriented.