Aims of Study In the investigation of lower urinary tract symptoms many cases can be reliably assessed from a good history and a simple measurement of maximum flow rate (Q-max) alone. To obtain a reliable flow rate patients must void a reasonable volume, as flow is dependent on voided volume [1]. Clinical trials have demonstrated that the reliability of Qmax can be improved by bladder instillat...

the atmospheric pressure chemical vapor synthesis (apcvs) route is a process that can be used for the synthesis of doped-nanocrystalline powders with very small crystallite sizes having a narrow particle size distribution and high purity. in this study, apcvs technique was used to prepare boron-doped titania nanopowders. the effects of temperature, borate flow rate and water flow rate on the am...

Achieving a stable blood oxygen level in patients who depend on this level of care is arguably determined in part by precise regulation of oxygen flow. The reliance on flow meter accuracy is the cautionary message that is relayed in the paper by Davidson et al in this issue of RESPIRATORY CARE.1 There is limited evidence that defends oxygen flow meter accuracy,2 which may account for the lack o...

in this study, the performance of an irreversible regenerative brayton cycle is sought through power maximizations using finite-time thermodynamic concept in finite-size components. optimizations are performed using a genetic algorithm. in order to take into account the finite-time and finite-size concepts in the current problem, a dimensionless mass-flow rate parameter is used to deploy time v...

In the present study, the possibility of concentrating tungsten-copper vein ore in South Chah-Palang was examined using gravity separators including Jig Machine (-2360+600 μm), shaking table (-600+120 μm), and multi-gravity separator (MGS) (-120 μm). The representative sample contains 1.5% WO3 and 5.95% CuO. The main tungsten minerals were ferberite and wolframite and their appropriate liberati...