The anti-suck-back ability of five new high-speed air turbine handpiece models was evaluated in this study. First, suck-back pressure with water displacement within a glass tube was measured. Next, under three different conditions, how many on-off times it takes before fluorescent stains became visible on a piece of gauze at the exhaust vent was counted and the presence of fluorescent stains on...

to evaluate the effects of biological phosphorous, chemical fertilizers and limited irrigation regime on quantitative and qualitative characteristics of two different grain sorghum cultivars (kimiya and speedeh), this experiment was conducted in research farm of college of agriculture, university of tehran during 2009 growing season. the experimental treatments were arranged as split split plot...

Wind energy is presently the fastest growing renewable energy source in the world. However, the industry still experiences premature turbine component failures, which lead to increased operation and maintenance (O&M) costs and subsequently, increased cost of energy (COE). To make wind power more competitive, it is necessary to reduce turbine downtime and increase reliability. Condition monitori...

The mycotoxin deoxynivalenol (DON) acts as a disease virulence factor for Fusarium fungi, and tolerance of DON enhances wheat resistance to Fusarium head blight (FHB) disease. Two variants of an ATP-binding cassette (ABC) family C transporter gene were cloned from DON-treated wheat mRNA, namely TaABCC3.1 and TaABCC3.2. These represent two of three putative genes identified on chromosomes 3A, 3B...

Chitin is the second most plenteous polysaccharide in nature after cellulose, present in cell walls of several fungi, exoskeletons of insects, and crustacean shells. Chitin does not accumulate in the environment due to presence of bacterial chitinases, despite its abundance. These enzymes are able to degrade chitin present in the cell walls of fungi as well as the exoskeletons of insect. They h...

Cereal grains are the most important food source for humans. As the global population continues to grow exponentially, the need for the enhanced yield and minimal loss of agricultural crops, mainly cereal grains, is increasing. In general, harvested grains are stored for specific time periods to guarantee their continuous supply throughout the year. During storage, economic losses due to reduct...

Diseases in rice plants (paddy) caused by microorganisms such as Pyricularia oryzae lead to a decrease production. Therefore, it is essential find out biological agents for protecting paddy and general, against plant diseases. Liquid smoke endophytic fungi have been known enhance the protection of disease. The purpose this study was determine ability liquid smoke, concentrations combinations su...

phytosis complex." 2,3 A bacterial and fungal culture may thus be necessary to identify all nail and foot pathogens. A clue that a patient has a significant bacterial infection is green discoloration of the nail, as in our patient. Unfortunately, because of the faster growth rate of bacteria, isolation of fungi is often not possible. The inability to isolate a fungus because of bacterial overgr...

The electrical degradation of piezoelectric ceramics occurs during the working process, whose features are decrease in resistance, increase leakage current, and formation discoloration areas. During process degradation, many times, occurrence breakdown events leads to production growth In this paper, high-voltage impact test is carried out obtained areas compared with It found that produced by ...