This study analyzed the shear bond strength (SBS) of resin composite on zirconia surface to which a specific conditioner was applied before sintering. After sintering of either conditioner-coated or uncoated specimens, both groups were divided into three subgroups by their respective surface modifications (n = 10 per group): no further treatment; etched with hydrofluoric acid; and sandblasted w...

ABSTRACT: In recent years there has been a growing interest in the use of organic waste agriculture. this way, was aimed with study to evaluate biochar from pequi shell (Caryocar brasiliense Cambess) on soil chemical properties and production nutrition common bean plants. The experiment carried out pots (4 dm3 ~ 5,44 kg), completely randomized experimental design, 4 x 3 + 2 factorial scheme, fo...

In the air-conditioner’s market, the users are particularly sensitive to the vibration and noise of the machine. Thus, the enterprise not only the air-conditioner manufactures but also the compressor manufactures cast about how to develop and design more quietly machine. In this paper, we analyzed various kinds of factors that influenced the vibration and noise of air-conditioner, and we give t...