The phrase "a certain time cost" is correct and usable in written English.
It can be used when discussing the specific amount of time required for a task or process, often in a context where time efficiency is being considered.
Example: "Implementing this new software will incur a certain time cost, but the long-term benefits will outweigh the initial investment."
Alternatives: "a specific time expense" or "a particular time investment".
The goal of this approach is to maximize the number of technical changes which can be implemented into products of an existing modular product platform at a certain time while minimizing development costs as well as changing efforts within production.
In the past year Baan has bought Berclain Group, a firm in Quebec that makes software to link suppliers and manufacturers; Aurum, a firm in Santa Clara, Calif .that makes software to automate sales forces; and Antalys, a firm in Golden, Colo .that sells software to let a customer know instantly if an order can be delivered within a certain time and under a certain cost.
ROI is calculated as the present value of accumulated net benefits over a certain time period minus the initial costs of investment, then divided by the initial costs of investment, as shown in Eq. 1. ROI = frac{B_{t} - C_{t}}{C_{t}} cdot 100, (1).
The energy cost in a certain time slot is always increasing and smooth or at least a piecewise smooth function with respect to the energy demand X h.
2) The energy cost in a certain time slot is always increasing and smooth or at least a piecewise smooth function with respect to the energy demand X h. 3) The cost in peak demand hours is higher than that in off-peak demand hours.
The highly competitive communications markets of the future should encompass mechanisms for enabling users to find and associate with the most appropriate retailers, i.e. those offering at a certain time period adequate quality services in a cost efficient manner.
The algorithm reduces resources under- and over-provisioning by minimizing the total cost for a customer during a certain time horizon.
Because of the switching overhead, the new demand should last a certain time before the benefit of new UL/DL configuration compensates the switching cost.
