The Oppo BDP-203 is an excellent high-end 4K Blu-ray disc player, but image quality improvements over cheaper players are tough to spot. Read full review Autoplay: ON Autoplay: OFF
Efflorescence is the stubborn problem that has caused confusion and trouble for masonry since the first time it appeared thousands of years ago on ancient masonry walls. Efflorescence is normally the white, powdery scum that can appear on masonry walls after construction but can also be brown green or yellow, depending on the type of salts.
In physics, fluence is the flux integrated over time. For particles, it is defined as the total number of particles that intersect a unit area in a specific time interval of interest, and has units of mâ2. Fluence can also be used to describe the energy delivered per unit area, in which case it has units of J/mÂ². It is considered one of the fundamental units in dosimetry.