Luckily, there’s a fully featured free and open source circuit simulation software called Qucs (Quite Universal Circuit Simulator), released under the GPL, that offers a decent alternative to ...

That’s the reason for the vast versions of SPICE available now decades after the original was released, not all of which are as open or free as we might like. Qucs is a GPL circuit simulator.

In considering the techniques that may be used for digital circuit testing, two distinct philosophies may be found, namely: to undertake a series of functional tests and check for the correct ...

For example, a 0.1-nH via hole has 22 ohms of reactance at 35 GHz. As an alternative to a DC short to ground, we can use an RF short circuit, a quarter-wavelength transmission line terminated in an ...

Fault isolation may be part of hardware design at the circuit level all the way up to the complete system. It is accomplished by building in test circuits and/or by dividing operations into ...

The fuse breaks the circuit if a fault in an appliance causes too much ... can be reset and uses an electromagnet to open a switch if the current goes above a certain value. MCBs switch off ...

Stan Wawrinka, schlepping for Yonex, delivers in a fresh fuschia shirt-and-shorts combo. It'd be a winner with a lighter (white?) shoe, but instead the black-on-black socks and shoes give off a ...

Your turn, denizens of Tennis Nation: Who were your own best and worst dressed at this US Open? I would be glad to receive all your hot takes on Twitter.

If you’re having trouble with any services and you think something might be wrong with our network select the service you are having problems with. Then enter your address details and the tool ...

As a group, these principles form the basis of the open science agenda – an agenda that is currently being defined by stakeholders from around the world. Our goal as a learned society, professional ...

The 2023 U.S. Open champion coughed up no less than 21 double faults in a disturbing loss that is in danger of knocking over the building blocks that were being laid by new coach Matt Daly.

Stars from high-profile entries like “Baby Reindeer,” “Fargo,” “True Detective: Night Country” and more are in the running for this year’s Emmy race in best limited series… ...