来自MSN1 个月
BPPV: Why Loose Ear Crystals Make You Dizzy and How to Fix Them
[2] In the inner chamber of the ear, calcium carbonate crystals, also called otoconia can become loose and shift within the semicircular canals. These canals assist the brain with balance and ...
Hackaday1 年
Cooling Paint You Can Actually Make
The result is microsphere crystals of calcium carbonate, but that was only half the battle. To really get effective cooling, the resulting paint needs a very high density of spheres. The trick ...
C&EN4 年
The Fate of Calcium Carbonate
Sidewalk chalk is made from calcium and sulfate, which makes calcium sulfate. One of the most common chemicals connected to calcium is called “carbonate”, and together they make calcium carbonate.
Nature3 天
Benign Paroxysmal Positional Vertigo
It is caused by the displacement of tiny calcium carbonate crystals (otoconia) within the inner ear, leading to abnormal signals being sent to the brain. BPPV can significantly impact a person's ...
IEEE2 年
Yuchen Fu
Finite Element,Alkali-activated Materials,Arch Dam,CFD Numerical Simulation,Calcium Carbonate Content,Calcium Carbonate Crystals,Cement-based Materials,Compressive Strength,Compressive Strength ...
IEEE1 年
I. A. Pochitalkina
Absorption Intensity,Activation Energy,Array Film,Calcium Carbonate Crystals,Chemical Analysis Methods,Concentration In Phase,Degree Of Purity,Degree Of Supersaturation,Effect Of ...
Who's Dated Who?1 年
Dolomite dating history
Dolomite is the name of a sedimentary carbonate rock and a mineral, both composed of calcium magnesium carbonate CaMg(CO3)2 found in crystals.