Recent studies on underwater object detection have progressed with the development of deep-learning methods. Generally, model performance increase is accompanied by an in computation. However, a significant fraction remotely operated vehicles (ROVs) and autonomous (AUVs) operate environments limited power computation resources, making large models inapplicable. In this paper, we propose fast co...

A monitoring campaign was conducted in August-September 2005 to compare different experimental approaches quantifying school bus self-pollution. As part of this monitoring campaign, a detailed characterization of PM2.5 diesel engine emissions from the tailpipe and crankcase emissions from the road draft tubes was performed. To distinguish between tailpipe and crankcase vent emissions, a deutera...

Compressive optic neuropathy with acute or chronic vision loss has been associated with various skull base tumors, aneurysms, Graves disease, trauma, and, less commonly, fibrous dysplasia and osteopetrosis. The authors present a case of acute visual deterioration in a 25-year-old woman who had massive calvarial hypertrophy with optic canal stenosis secondary to renal osteodystrophy (uremic leon...

2. Referenced Documents 2.1 ASTM Standards: D1318 Test Method for Sodium in Residual Fuel Oil (Flame Photometric Method) D3237 Test Method for Lead in Gasoline by Atomic Absorption Spectroscopy D3340 Test Method for Lithium and Sodium in Lubricating Greases by Flame Photometer D3605 Test Method for Trace Metals in Gas Turbine Fuels by Atomic Absorption and Flame Emission Spectroscopy D3831 Test...

The rheological characteristics of one mineral oil and two ionic liquid (IL) based lubricating greases were explored as a function of thickener concentration. The ILs used are 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM][TFSI]) and trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide ([P6,6,6,14][TFSI]), with polytetrafluoroethylene (PTFE) particles used as t...

Benzotriazole and borate derivatives have long been used as multifunctional additives to lubricants. A novel, environmentally friendly additive borate ester (NHB), which contains boron, ethanolamine, and benzotriazole groups in one molecule, was synthesized by a multi-step reaction, and its tribological properties in rapeseed oil (RSO) were investigated by a four-ball tribometer. The hydrolysis...

The effects of two lubricating oils on the trophic diversity of a nematode community of a Tunisian lagoon were investigated in a microcosm experiment. Sediment from a pristine site in Ghar El Melh lagoon (Western Mediterranean) was treated with mineral oil (Mobil 20 W-50), a synthetic lubricant (Mobil 0 W-40), the same two lubricants after use in a vehicle. Univariate analysis showed significan...

Discharge air/gas from compressors is often not of the right quality for certain uses unless it is suitably treated. The various contaminants present in compressed air/gases include atmospheric pollution, compressor wear particles, bulk lubricating oil and aerosols, watervapour and condensed water, oil/ water emulsion, rust and carbon. Suitable treatment of the air/gases involves the removal of...