Switching cellular and Wi-Fi off makes the device OK to use in an airplane. How to access Airplane mode. On iOS, you access Airplane mode by swiping up from the bottom of the home screen and then tapping the plane icon. If the icon is highlighted orange, Airplane mode is on. Alternatively, you can head to Settings, tap Airplane mode, and then switch the slider to On.
ENERGY EXPENDITURE USING DOUBLY LABELLED WATER. Iso-Analytical provides a full range of analytical services for customers wishing to determine Energy Expenditure using doubly labelled water. The Doubly Labelled Water (DLW) method uses the natural occurring stable isotopes of water (D2O and H218O) to assess energy expenditure, body composition and water flux in humans and animals.
Applications: 1  Potable water monitoring: Common chemical parameters include pH, nitrates and dissolved oxygen. Measuring O2 (or DO) is an important gauge of water quality. 2  Chemical leakage detection in rivers: Extreme pH or low DO values signal chemical spills due to sewage treatment plant or supply pipe problems.