As soon as the whistle blows, drive back to your home or studio.
Open image in new window Fig. 11 Blow-driven TENG as an active alcohol breathalyzer.
a Schematic illustrations of the functional components of the blow-driven triboelectric nanogenerator, which mainly consists of three parts, a rotator, a stator and a soft elastic.
The alcohol vapor would dramatically increase the resistance of the sensor that led to an increased voltage drop across the sensor, when the blow-driven TENG was blown by a tester after alcohol drinking (Fig. 11e).
Facing this problem, Zhong Lin Wang's group, for the first time, introduced a completely new working principle of self-powered gas sensing system by fabricating a blow-driven TENG to supply power for active alcohol detection, as shown in Fig. 11.
The induced voltage across the sensor holds a proportional relationship with the breathed-out alcohol concentration regardless of the blow speed and quality airflow so that this blow-driven TENG-based self-powered gas sensor makes a significant progress toward the practical application.
The basic structure of the self-powered gas sensing system mainly consists of three functional parts, a traditional gas sensor, an alarm as well as a blow-driven TENG as power source, which can be driven by mouth blowing (Fig. 11a, b).
In the past, the city was less careful about keeping them covered, and blowing salt drove local residents crazy.
Now, in a stunning turnabout, the banking giant has sunk to its knees after a series of blows that have driven its stock price to a mere $3.77 on Friday — and left it running short on time and options.
The case for whistle blowing, then, is driven by the recognition, first of all, that internal mechanisms often fail to deal adequately with an organization's failures, and second, that because the interests jeopardized by those failures often include those outside the organization, a wider group has a prima facie right to know of the costs that it faces or that have been imposed on it.
Over the course of 12 seasons, Jamie Hyneman and Adam Savage have blown up pianos, driven cars into swimming pools and explored every inch of the fun side of science as the hosts of the Discovery Channel's "Mythbusters".
