In a Minimum Cost Network Flow Model,the Flow Balance Constraint $\ge$

question 15

Multiple Choice

In a minimum cost network flow model,the flow balance constraint for each supply node has the form

• A) Flow in \(\ge\) Flow out + Net supply
• B) Flow out \(\ge\) Flow in + Net demand
• C) Flow in = Flow out
• D) Flow out \(\le\) Flow in + Net supply
• E) Flow in \(\le\) Flow out + Net demand

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Definitions:

Pore Spaces

Voids or gaps found within soil or rock, where air or fluid can be stored.

Leaching

The process by which dissolved materials are washed away or carried with water down through the various layers of the soil.

Rhizobacteria

Beneficial bacteria that reside in the soil close to plant roots, often enhancing plant growth or protecting against pathogens.

Nod Factors

Signaling molecules produced by rhizobial bacteria that play a crucial role in the establishment of symbiosis with leguminous plants, leading to the formation of nitrogen-fixing nodules.