Leak detection is a very important step in the production and maintenance of oil and gas pipelines. It is needed to check tightness specifications and to ensure other installation specifications are fulfilled. In this paper some pipeline leak detection methodologies are studied to come up with a design structure that could ease pipeline leak detection and monitoring via Google earth. A common d...

Today, pipe systems are the most common facilities to convey various fluids from one place to another. In such facilities faults like leaks lead to advert consequences such as economic losses and social health threats. The fact that early detection of leaks can play a prominent role in reducing the amount of these undesired impacts has absorbed noticeable attention from researchers to this fiel...

Lung-sparing medical ventilation –CPAP + PSV Mode – The FABIAN HFO is a new medical ventilator that was developed mainly for use with newborns and can accommodate children weighing up to 30 kg. It is equipped for ventilation modes CMV, SIMV, AC, PSV, and HFO and has VG, volume limit, and leak correction functions. A key feature is separate pressure setup for backup ventilation during apnoea in ...

The aim of this paper is numerical and experimental study of the effects of flow hydraulics, pipe structure (particularly elastic behaviour) and submerged jet on leak behaviour. In this regard, experimental tests were performed on a high-pressure circulation set up. Experiments were performed on an old steel pipe and a High Density Polyethylene (HDPE) pipe discharged to the atmosphere in a wide...

Recently, the Web Services Interoperability Organization (WS-I) has announced to have completed its interoperability standards work. The latest deliverables include the so-called “Basic Security Profile” and the “Reliable Secure Profile”. This gives rise to the question whether or not Web Services adopters can rely on interoperability and functionality of Web Services stacks, in particular in t...

This paper argues that, in a collaboration context, instead of Web services requiring client applications to comply with individual permutations of security configurations, a standardized mechanism should be established to ensure global security-interoperability. Such a solution would facilitate providing Web services in Grid Services contexts as well. A framework is proposed which comprises, i...

conclusions the early signs and symptoms of iscls may be subtle; therefore the diagnosis can easily be missed and prompt treatment of the syndrome may be postponed. thus, the clinician must consider iscls in differential diagnosis in cases of hypotension, hemoconcentration, and hypoalbuminemia. case presentation we present a 58-year-old female who presented with peripheral edema, leg pain, and ...

background: proposing a strategy for sellar reconstruction in endoscopic transsphenoidal transsellar approach for pituitary adenoma. methods: 240 patients with pituitary adenoma underwent pure endoscopic endonasal transsphenoidal surgery. intra-operative csf leaks were classified as grade 0, no observable leak grade 1, csf dripping through an arachnoid membrane defect of less than 1 mm and grad...

Mobile communication systems now constitute an essential part of life throughout the world. Fourth generation “Long Term Evolution” (LTE) mobile communication networks are being deployed. The LTE suite of specifications is considered to be significantly better than its predecessors not only in terms of functionality but also with respect to security and privacy for subscribers. We carefully ana...