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On 8 September 1968, HMCS Saskatchewan ran aground while transiting Active Pass in fog. The captain was court martialed and found guilty of negligence. [5]On 2 August 1970, three people aboard the BC Ferry Queen of Victoria perished and the ship itself suffered close to $1 million damage when a Russian freighter, the Sergey Yesenin, struck it in Active Pass.
Some electronic circuits employ active current limiting since a fuse may not protect solid-state devices. One style of current limiting circuit is shown in the image. The schematic represents a simple protection mechanism used in regulated DC supplies and class-AB power amplifiers. Q1 is the pass or output transistor.
Illustration of the "reference directions" of the current (), voltage (), and power () variables used in the passive sign convention.If positive current is defined as flowing into the device terminal which is defined to be positive voltage, then positive power (big arrow) given by the equation = represents electric power flowing into the device, and negative power represents power flowing out.
Angle notation can easily describe leading and lagging current: . [1] In this equation, the value of theta is the important factor for leading and lagging current. As mentioned in the introduction above, leading or lagging current represents a time shift between the current and voltage sine curves, which is represented by the angle by which the curve is ahead or behind of where it would be ...
[1] [2] The interface of an object conforming to this pattern would include functions such as Insert, Update, and Delete, plus properties that correspond more or less directly to the columns in the underlying database table. The active record pattern is an approach to accessing data in a database. A database table or view is wrapped into a class.
There are 847 (as of now) administrator accounts (active and otherwise), 459 of them active (as of 2025-02-14). Activity is defined as 30 or more edits during the last two months. Administrators who have been completely inactive for over a year are routinely de-sysopped, though they can reactivate their status through a simple request within ...
Figure 3: A low-pass filter, which is implemented with a Sallen–Key topology, with f 0 = 15.9 kHz and Q = 0.5 Starting with a more or less arbitrary choice for e.g. C {\displaystyle C} and n {\displaystyle n} , the appropriate values for R {\displaystyle R} and m {\displaystyle m} can be calculated in favor of the desired f 0 {\displaystyle f ...
In electricity distribution circuits, Active Network Management (ANM) describes control systems that manage generation and load for specific purposes. This is usually done to keep system parameters (voltage, power, phase balance, reactive power and frequency) within predetermined limits.