Abstract: A method for operating a field testing device to detect an additive in a refrigerant and/or lubricant. The method includes mixing a reactive medium with the refrigerant and/or lubricant. The reactive medium is configured to react with any additive present in the lubricant and/or refrigerant to form a product that has a different color than the reactive medium. The method also includes determining the additive concentration of the lubricant and/or refrigerant by utilizing the color of the reaction mixture. The field operating device is portable such that the additive concentration may be determined while in the field.

Abstract: A method for operating a field testing device to detect an additive in a refrigerant and/or lubricant. The method includes mixing a reactive medium with the refrigerant and/or lubricant. The reactive medium is configured to react with any additive present in the lubricant and/or refrigerant to form a product that has a different color than the reactive medium. The method also includes determining the additive concentration of the lubricant and/or refrigerant by utilizing the color of the reaction mixture. The field operating device is portable such that the additive concentration may be determined while in the field.

Abstract: A comprehensive system and methodology for incorporating origination and destination network effects into a transportation industry's vehicle assignment process. The invention utilizes a decomposition strategy to combine a simplified version of network segment-FAM with the network flow aspects of origination and destination yield management. The invention's decomposition of the problem allows for the nonlinear aspects of the targeted origination and destination market effects to be isolated in origination and destination yield management, and subsequently incorporated in the vehicle assignment model using linear approximations to the total revenue function. The system operates either in "standalone" mode, or communicably attached to remote and local databases attendant to equipment and scheduling.