It is convenient to consider the magnetic medium as a secondary field source in solving the magnetostatic problems.

在求解域内存在磁性介质的静磁场问题时，将磁性介质视为二次场源是方便的。

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This paper discusses the feasibility of broadband matched field source localization in F-Lake with a single hydrophone.

研究利用单个水听器对宽带水下声源进行匹配场定位的可行性问题。

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Normalized total gradient method, which can be used to determine location of magnetic field source above hydrocarbon accumulations;

用归一化总梯度法确定油气上方场源位置；

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There are free Android and iOS apps for those that just want to check their vitals and be done with it, but tinkerers can have a field day with the open-source hardware and upcoming API.

ENGADGET: Insert Coin semifinalist: smARtPULSE is a hackable Bluetooth oximeter

The idea is to attach a patch of the stuff to tents, so soldiers in the field have a built-in power source.

ECONOMIST: MONITOR

Taken further, if we are all connected to a greater source (God, unified field, etc) then money is part of this collective whole as well.

FORBES: The Quiet Wisdom Of Saving