Both direct and indirect heating compression methods were proposed to satisfy the requirement of industrial steam supply. The process in a single-screw compressor was analyzed with determination different inlet outlet boundary conditions. Considering misalignment meshing pairs caused by offset star wheel axis screw origin, differential expansion vertical pair further analyzed. inner ring sealin...

DNA adenine methylase mutants of Salmonella typhimurium contain reduced amounts of FinP, an antisense RNA encoded by the virulence plasmid pSLT. Lowered FinP levels are detected in both Dam- FinO+ and Dam- FinO- backgrounds, suggesting that Dam methylation regulates FinP production rather than FinP half-life. Reduced amounts of F-encoded FinP RNA are likewise found in Dam- mutants of Escherichi...

[1] In this study continuous simulation flood frequency predictions on the Skalka catchment in the Czech Republic (672 km, range of altitudes from 460 to 1041 m above sea level), are compared against summary information of rainfall characteristics, the flow duration curve, and the frequency characteristics of flood discharges and snow water equivalent using the generalized likelihood uncertaint...

Floods control equipment in large dams is one of the most important requirements hydraulic structures. Howell–Bunger valves and butterfly are two these types flow controls that commonly used bottom outlet dams. The optimal longitudinal distance (L) between such turbulence from valve should be dissipated before entering valve. Subsequently, passing through must have a fully developed state reach...

In this study, we demonstrated that the methyltransferase activity associated with Dam was essential for attenuation of Aeromonas hydrophila virulence. We mutated aspartic acid and tyrosine residues to alanine within the conserved DPPY catalytic motif of Dam and transformed the pBAD/damD/A, pBAD/damY/A, and pBAD/damAhSSU (with the native dam gene) recombinant plasmids into the Escherichia coli ...

The Monforte de Moyuela dam, also known as Ermita la Virgen del Pilar is a Roman reservoir built on tributary of the Aguasvivas River (Ebro basin, Spain). A multidisciplinary study has been carried out to investigate this kind water infrastructure. It fifth-highest dam (16.8 m) in Iberian Peninsula and seventh Empire. initial was ca. 100 B.C.–10 A.D., probably period Augustus, like other nearby...

The DNA of Serratia marcescens has N6-adenine methylation in GATC sequences. Among 2-aminopurine-sensitive mutants isolated from S. marcescens Sr41, one was identified which lacked GATC methylation. The mutant showed up to 30-fold increased spontaneous mutability and enhanced mutability after treatment with 2-aminopurine, ethyl methanesulfonate, or UV light. The gene (dam) coding for the adenin...

The objective of this study was to evaluate the opinions and attitudes of dentists toward the use of rubber dam during various restorative procedures in their dental practices. A structured questionnaire was designed, and distributed to 300 dentists and those that were fully completed were collected for analysis. The collected informations about the opinions and attitudes of dentists toward the...

Many irrigation ponds in Fukushima Prefecture were decontaminated due to the contamination of radiocesium released from Daiichi Nuclear Power Plant. To evaluate impact decontamination on 137Cs dynamics an urban pond Koriyama City, Prefecture, Japan, temporal changes concentrations bottom sediments and water investigated before after bottom-sediment removal. Post-decontamination, inventories dec...