How to build your own air quality meter with a Raspberry Pi and CO2 sensor

In winter, it’s important to ventilate living and working spaces regularly. Here’s how to make a homemade measuring station ...

4 Reasons Engine Cylinders Misfire (And What To Do About It)

Engine cylinders can misfire for many reasons. There are four causes in particular that you should be aware of; here's what ...
IEEE

A Novel EFPI Sensor for Ultrasonic Testing of Partial-Discharge in High-Voltage Electrical Equipment

Abstract: A novel extrinsic Fabry–Perot interferometric (EFPI) ultrasonic sensor is developed that can detect ultrasonic signals of partial discharge (PD) in high-voltage electrical equipment under ...

Best holiday deals on Apple devices

We're keeping tabs on the holiday prices on AirPods, MacBooks, and Apple WatchesAs you do your holiday shopping, CR finds the best deals on Apple products, from $100 AirPods to a sub-$600 iPhone ...
SciELO

Comparative Analysis of Direct and Indirect Methods for the Determination of Maximal Oxygen Uptake in Sedentary Young Adults

Background: Maximal oxygen uptake is a powerful prognostic indicator and a reliable measure of physical conditioning. It can be measured directly by cardiopulmonary exercise testing (CPET) or ...
IEEE

Distributed Intermittent Fault Diagnosis in Wireless Sensor Network Using Likelihood Ratio Test

Abstract: In current days, sensor nodes are deployed in hostile environments for various military and commercial applications. Sensor nodes are becoming faulty and having adverse effects in the ...