![[Wellspring] Portable Water Purifier: Emergency and Disaster Survival](https://d1py1ngsne97dt.cloudfront.net/ew0KICAiYnVja2V0IjogImVlLWZpbGVzIiwNCiAgImtleSI6ICJmaWxlcy8xMTQwODgvYXJ0aWNsZXMvMTExMDcxOC8xMTQwODhfNl8yMDIzMDYwMTAwMTUzODc2NDUxODkuanBnIiwNCiAgImVkaXRzIjogew0KICAgICJyZXNpemUiOiB7DQogICAgICAiZml0IjogImNvbnRhaW4iLA0KICAgICAgImJhY2tncm91bmQiOiB7DQogICAgICAgICJyIjogMjU1LA0KICAgICAgICAiZyI6IDI1NSwNCiAgICAgICAgImIiOiAyNTUsDQogICAgICAgICJhbHBoYSI6IDENCiAgICAgIH0sDQogICAgICAid2lkdGgiOiAxOTksDQogICAgICAiaGVpZ2h0IjogMTIwDQogICAgfQ0KICB9DQp9 "[Wellspring] Portable Water Purifier: Emergency and Disaster Survival")
Are you genuinely prepared for the next emergency or natural disaster? Imagine being caught in a chaotic situation with limited access to clean and safe drinking water. It's a frightening reality that many face. With floods, earthquakes, ...
Abstract The schlieren method, based on Raman-Nath scattering by ultrasonic waves, is extended to pressures up to 8.8~10~ Pa (about 5KW/cm2 for 4 MHz CW waves) by capturing up to the 16" order diffraction harmonics in water. Given the high ...
If you want your field service business to succeed, you need to stand out. One of the best ways to differentiate yourself from competitors is to build a brand known for its excellent customer service. But finding time to run a ...
Biomass pellet mills have become significantly popular in recent times as a result of the growing need for renewable&nbs ...
Abstract The acoustic output from pulsed ultrasonic transducers has traditionally been analyzed with a hydrophone. Recently, a new faster technique has been developed using the principles of optical diffraction. This schlieren method ...
Ultrasound imaging manufacturers are required to conduct hundreds of thousands of measurements of transducer power and intensity for research, development, regulatory compliance (FDA/IEC), and production quality assurance. This can delay ...
Abstract Experimental and theoretical evidence of silicon substrate ringing in microfabricated ultrasonic transducers is presented. This ringing is clearly observed in immersion transducers with a 650 µm thick substrate at 7 MHz and ...
So far, old circuit boards is the main source of e-waste. Because of being very harmful to the environment, old circuit boards can not be thrown away unceremoniously. Then what can old circuit boards do? How to do with old circuit boards ...
Water is one of the most important natural resources on earth, an essential element for all life, so maintaining its quality is crucial for the health of both humans and the environment. Many factors continuously threaten the quality of ...
Submersible pumps are devices with hermetically sealed motors that are close-coupled to their bodies. The entire pump assembly remains submerged in the fluid that has to be pumped. The main submersible water pump ...
