For examination and diagnostics of the insulation quality of high voltage devices the measurement of partial discharge (PD) is accomplished. The conventional PD measurement according to IEC60270 is in some situations not sensitive enough because of the high interference level in field. The development of an unconventional measuring method using electromagnetic probes is presented. These probes ...

The current state of development deposits with high-viscosity oils is characterized by a low value the achieved oil recovery high water cut in produced wells. However, ways to improve implemented systems order increase factor conditions well production, especially late stage operation requires further research. Therefore, this research intended investigate features filtration non-Newtonian poro...

The present study aimed to elucidate the impacts of dietary vegetable oil blends as alternative to fish oil on serum biochemical and haematological parameters in Heterobranchus longifilis fingerlings. Fish (4.65 ± 0.23g) were fed diets containing fish oil (FO), palm oil (PO), soybean oil (SO), blend of PO and SO (POSO) over a 12-week period. The experiment was carried out in 62-l circular tanks...

Foam can be used to achieve environmental remediation in case of contamination caused by light non aqueous phase spills. However, when it comes contact with oily pollutants, foam becomes weaker and its life time is greatly reduced. Such weakening dampened using silica particles -together saponin surfactant- which were shown reinforce bulk 1D sandpack experiments. Here addressed both propagation...

On October 6, 2002, M/V GOTIA, carrying 163 metric tons of fuel oil in her fuel tanks, rammed into the Emirgan Pier in the Bosporus. One of the fuel tanks started leaking oil in to the Bosporus. The ship continued its passage and finally anchored when it reached the Marmara Sea where the leaking tank was repaired. Following the accident, the strong surface current, rapidly transported the oil s...

The reliability of electrical energy networks depends on the quality and availability of electrical equipment like power transformers. Local failures inside their insulation may lead to catastrophic breakdowns and can cause high outage and penalty costs. Beside the strength and type of a PD, the geometric PD position is of major interest concerning risk evaluation of the flaw. Conventional PD m...

Oil spills threaten the productivity of ecosystems through the degradation of coastal flora and the ecosystem services these plants provide. While lab and field investigations have quantified the response of numerous species of emergent vegetation to oil, the effects on submerged vegetation remain uncertain. Here, we discuss the implications of oil exposure for Ruppia maritima, one of the most ...

Current chemical dispersant effectiveness tests for product selection are commonly performed with bench-scale testing apparatus. However, for the assessment of oil dispersant effectiveness under real sea state conditions, test protocols are required to have hydrodynamic conditions closer to the natural environment, including transport and dilution effects. To achieve this goal, Fisheries and Oc...

Marine oil snow (MOS) formation is a mechanism to transport oil from the ocean surface to sediments. We describe here the use of 110L mesocosms designed to mimic oceanic parameters during an oil spill including the use of chemical dispersants in order to understand the processes controlling MOS formation. These experiments were not designed to be toxicity tests but rather to illustrate mechanis...

A novel approach to the recycling of polystyrene is reported here; polystyrene is converted to a biodegradable plastic, namely polyhydroxyalkanoate (PHA). This unique combinatorial approach involves the pyrolysis of polystyrene to styrene oil, followed by the bacterial conversion of the styrene oil to PHA by Pseudomonas putida CA-3 (NCIMB 41162). The pyrolysis (520 degrees C) of polystyrene in ...