Leaks in water distribution networks cause a loss of that needs to be compensated ensure continuous supply for all customers. This compensation is achieved by increasing the flow network, which entails an undesirable economical expense as well negative consequences environment. For these reasons, detecting and fixing leaks relevant task companies. paper proposes leak detection method based on s...

Background: Anastomotic leaks in colorectal surgery results in a high morbidity and mortality rate. Serum procalcitonin levels is known as a sensitive and specific marker of sepsis and could be use as a marker for early detection of a leak allowing early intervention. It may help a clinician decide to perform a CT scan even earlier especially when the diagnosis of a leak is uncertain. The aim o...

Water pipe network is installed underground and once equipped, it is difficult to recognize the state of pipes when the leak or burst happens. Accordingly, post management is often delayed after the fault occurs. Therefore, the systematic fault management system of water pipe network is required to prevent the accident and minimize the loss. In this work, we develop online fault detection syste...

A new transient-based hybrid heuristic approach is developed to optimize a transient generation process and to detect leaks in pipe networks. The approach couples the ordinal optimization approach (OOA) and the symbiotic organism search (SOS) to solve the optimization problem by means of iterations. A pipe network analysis model (PNSOS) is first used to determine steady-state head distribution ...

The accuracy of leak detection and calibration of pipe networks by means of the inverse transient analysis (ITA) is highly affected by the number and location of the measurement sites. This study introduces a conceptual decision-making model, the Decision Table Method (DTM), for the measurement site design of pipe networks with the aim of inverse transient analysis. Through the Decision Table M...

Abstract Background Radiologic diagnosis of CSF leaks is challenging. We evaluated the diagnostic value non-contrast CT and contrast-enhanced cisternography in identifying presence rhinorrhea site leak as well comparing them to surgical data and/or clinical follow-up. Results Fifty patients (20 males 30 females) were included our study with age ranging from 19 67 years. 76% cases had spontaneou...

BACKGROUND AND PURPOSE Spinal CSF leak syndrome is a unique disorder caused by spinal CSF leak. In this study, we attempted to determine whether MR myelography (MRM) can detect the leakage site in the spine. MATERIALS AND METHODS We performed both MRM and radioisotope cisternography (RIC) in 15 patients with spinal CSF leak syndrome. Patients were included in this study if they had at least 2...