EXECUTIVE SUMMARY

• On 24th September 2009, Dr James Watson of the University of Queensland was commissioned by the Department of the Environment, Water, Heritage and the Arts (DEWHA) to lead a rapid survey of the ‘megafauna’ (defined as cetaceans, birds and marine reptiles, i.e. turtles and sea snakes) in the Montara oil spill region. He solicited the help of Dr Liana Joseph (University of Queensland) and Dr Alexander Watson to conduct these tasks.
• The rapid survey, conducted on board the boat Sea Sprint, departed Darwin in the evening of Friday 25th September and returned the morning of Sunday 4th October.
• Five days of transects (incorporating 279 10-minute strip transects) were conducted at sea, covering a distance of 668.5 nautical miles (1,238 km) and a total survey area of 99,040 ha. In these surveys, a total of 124 (44%) 10-minute strip transects were in waters that were visibly affected by oil.

Large, unexpected bills can be a home and business owner’s nightmare. An improperly installed and/or poorly maintained oil tank can leak or spill unexpectedly, often costing in the tens to hundreds of thousands of dollars and be harmful to people, your property and the environment. It is the legal and financial responsibility of the homeowner, commercial building owners and/or property managers to clean up all heating oil tank leaks and spills.

The Department of Environment and Natural Resources has developed this Homeowner’s Guide to Oil Tanks to help prevent this unwelcome surprise.

This Guide is intended to:

• act as a pollution prevention measure;
• alert home, building and property owners about the potential environmental and financial liability of an oil spill; and
• provide some simple, practical steps that can minimize the chances of an oil spill.

Fuel Leak
For the 3000/3500Ti, it could be the valve or it could be the tank leaking between the brass fitting and the plastic tank. Both are replaceable. Determine which is leaking and either part is replaceable.

Fuel Flow
Open the drain screw on the bottom of the carburetor, do you get a steady flow of fuel? If so, there is no blockage. If no fuel flow, blockage may be the case. It is possible that you have a partial blockage which allows fuel to flow to the carb, giving the appearance of a steady supply, when in fact it is there but is not enough to meet the demand of the engine. Check for kinks in the fuel line.

Controlled Impedance Transmission Lines

Controlled impedance traces are used to match the differential impedance of the transmission medium, e.g., cables, and the termination resistors. Differential impedance is determined by the physical geometries of the signal pair traces, their relation to the adjacent ground plane and the PCB dielectric. These geometries must be maintained across the
entire trace length.

Figure 5 depicts the parameters relevant for impedance calculation for both, Microstrip traces (outer layer traces), and stripline traces (traces within the layer stack, typically sandwiched by two ground planes).

To calculate the trace geometries in Figure 5 for a 100 differential impedance TMDS signal pair, the closed-form equations 1 ” 6 can be applied.

1. For loosely coupled striplines, s > 12 mils, the number 0.748 might be replaced with 0.374
2. For W < 2h the maximum error is 3%