Cheerios

If the label on a box of Cheerios states that there are 22 g of carbohydrates in each serving, how does the manufacturer know with certainty that it is 22 g and not 20 or 25 g If the label on a bottle of rubbing alcohol says that it is 70% isopropyl alcohol, how does the manufacturer know that it is 70% and not 65 or 75% The answers have to do with the quality of the manufacturing process and also with how accurately the companies quality assurance laboratories can measure these ingredients. But much of it also has to do with the skills of the technicians performing the analyses. 

Standard addition. To measure Ca in breakfast cereal, 0.521 6 g of crushed Cheerios was ashed in a crucible at 600°C in air for 2 h.22 The residue was dissolved in 6 M HC1, quantitatively transferred to a volumetric flask, and diluted to 100.0 mL. Then 5.00-mL aliquots were transferred to 50-mL volumetric flasks. Each was treated with standard Ca2+ (containing 20.0 pg/mL), diluted to volume with H20, and analyzed by flame atomic absorption. Construct a standard addition graph and use the method of least squares to find the x-intercept and its uncertainty. Find wt% Ca in Cheerios and its uncertainty. 

Other cold cereals like com flakes or cheerios 1 medium bowl ... 

Vi cup walnut pieces or unsalted roasted almonds Vi cup Cheerios or any firm, high-nutrient, whole-grain cereal—check the Nutrition Facts panel ... 

Vt cup Cheerios or other firm, high-nutrient, whole-grain cereal... 

Most micro self-assembly processes are performed in a fluid medium and use gravity and/or surface tension for assembly. A prime example is self-assembly of small (submiUimeter) flat parts that can be formed into a crystal-like structure on a fluid surface caused by minimization of interfacial surface tension (otherwise known in layperson s terms as the Cheerios ejfect). Another prime example is the utilization of gravitational forces to flow parts over a surface, where shape recognition is used to place parts and surface tension and van der Waals forces hold the parts in place during subsequent processing. 

Donald Duck s Atom Bomb (1947), Cheerios Giveaway, Walt Disney Corporation. "Atomic Tot, All Humor Comics 2 (Summer 1946) (Comic Favorites). 

Cheerios Effect and its Control by Contact Angle Modulation... 

Keywords Lateral capillary force, wettability, electrowetting-on-dielectric (EWOD), Cheerios effect... 

Figure 3.1 Examples of Cheerios effect, (a) Bubbles migrate to the sidewall [1] and (b) A waterlily leaf beetle climbs the inclined air-water interface by arching its back [4].

The Cheerios effect is due to the horizontal component of the capillary force generated by the interface distortion. In order to find the horizontal component, the shape of the air-liquid interface deformed by objects or walls needs to be determined. Let be a function describing the shape (vertical position) of the interface ... 

The last configuration for Cheerios effect in this article is a spherical particle with capillary charge Q floating in vicinity of an infinite vertical wall. In order to find the horizontal capillary force between the wall and particle, one may consider a simple case where the contact angle at the wall is fixed at 0 = 90°, i.e., the boxmdary condition is... 

Figure 3.15 shows a conceptual sketch how to implement EWOD to control Cheerios effect. In the configuration of the wall and floating object, the EWOD electrode is installed on the wall. Initially, the wall surface of EWOD is hydrophobic, so the slope angle is negative (Figures 3.15(a) and (c)). In this case, as already discussed in the previous section, the... 

Figure 3.15 Concept of EWOD-controUed Cheerios effect, (a) and (b) Low-density object with positive slope angle iff. (a) EWOD is OFF (b) EWOD is ON. (c) and (d) High-density object with negative slope angle y/. (c) EWOD is OFF. (d) EWOD is ON.

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