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The batching matrix B indicates the relation of the molarity in the batch (columns) and in the glass (rows). For example, the batch component SiO 2 adds 1 mol SiO 2 to the glass, therefore, the intersection of the first column and row shows "1". Trona adds 1.5 mol Na 2 O to the glass; albite adds 6 mol SiO 2, 1 mol Na 2 O, and 1 mol Al 2 O 3 ...
The calculation of glass properties allows "fine-tuning" of desired material characteristics, e.g., the refractive index. [1]The calculation of glass properties (glass modeling) is used to predict glass properties of interest or glass behavior under certain conditions (e.g., during production) without experimental investigation, based on past data and experience, with the intention to save ...
Influences of selected glass component additions on the bulk modulus of a specific base glass. [6] A material with a bulk modulus of 35 GPa loses one percent of its volume when subjected to an external pressure of 0.35 GPa (~ 3500 bar) (assumed constant or weakly pressure dependent bulk modulus).
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A typical glass furnace holds hundreds of tonnes of molten glass, and so it is simply not practical to shut it down every night, or in fact in any period short of a month. Factories therefore run 24 hours a day 7 days a week. This means that there is little opportunity to either increase or decrease production rates by more than a few percent.
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This can be confirmed graphically. Using the diagram illustrating the total cost–total revenue perspective, the firm maximizes profit at the point where the slopes of the total cost line and total revenue line are equal. [4] An increase in fixed cost would cause the total cost curve to shift up rigidly by the amount of the change. [4]
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