The crystalline biofilms of Proteus mirabilis can seriously complicate the care of patients undergoing long-term indwelling urinary catheterisation. Expression of bacterial urease causes a significant increase in urinary pH, leading to the supersaturation and precipitation of struvite and apatite crystals. These crystals become lodged within the biofilm, resulting in the blockage of urine flow ...

The arterial blockage in patients with peripheral arterial disease (PAD) restricts oxygen delivery to skeletal muscles distal to the blockage. In advanced-stage PAD patients, this creates a chronic ischemic condition in the affected muscles. However, in the majority of PAD patients, the muscles distal to the blockage only become ischemic during physical activity when the oxygen demands of these...

Blockage of the U-type channel exacerbates intermittency production, and clarifying heat transfer characteristics pressure drop is an effective way to address this problem. The flow fluid in are experimentally investigated study. According experiments, coefficient between 59.95 200.29 W/m 2 ⋅K increases with velocity temperature. Because usually accompanied by a change energy loss fluid, evalua...

This study presents a new neural network approach to identify the presence and type of obstruction in pipes from measurements passive acoustic emissions. Inserts were used fluid re-circulation loop simulate different types blockage at various flow rates within turbulent regime, generating patterns The data pre-processed using Fourier analysis, two candidate sets statistical descriptors extracte...

One of the most prevalent causes failure for a ventriculoperitoneal shunt is blockage, other being infection. This study looks at blockage valve, and whether occlusion valve accelerated by presence an assumes that infection will raise number white blood cells contained in cerebrospinal fluid to fight it thus accelerate occlusion. The experiment simulates system suspending water bath has tempera...