Optimization problem Sample Clauses

Optimization problem. The values for the turn-around stock and threshold are necessary in order to simulate the To-Be situation. These values are obtained by developing an optimization problem which takes all SKUs into account. In a repair shop environment the Si level used in the model of Song & Xxxxxx equals the turn-around stock. This can be seen in Figure 4.3, where IP1i is the inventory position of the whole network (inventory of RFU-parts, defect parts and part which are in repair) and is therefore equal to the turn-around stock. In the optimization problem the values for Si and Ti will be obtained by minimizing the investment costs of the turn-around stock, constrained by a target level of the total expected backorders, a target level for the percentage of the total parts which get an emergency lead-time and the fact that the threshold must be equal to or smaller than the turn-around stock. See problem (Q). ( ) min Σn subject to i=0 Σn CiSi ( ) ≤ Σ i=0 n i=0 EBO Si, Ti ξ(Ti) ≤ ξobj EBOobj Ti ≤ Si where Ci are the investment costs of SKU i, EBO(Si, Ti) are the expected backorders for SKU i for a given Si and Ti, EBOobj is the maximum level of the total expected backorders, ξ(Ti) is the number of parts of SKU i which get an emergency lead-time for a given threshold Ti and ξobj is the maximum number of parts which can get an emergency lead-time. The first constraint is needed to prevent that every demand is backordered, the second constraint is needed to prevent that all parts get the emergency lead-time. The third constraint states that the threshold must be smaller than the turn-around stock. Without this constraint it could be the case that an emergency lead-time is never assigned to a part, even in case backorders have occured for that SKU. The EBO(Si), the expected value of the backorders for a given Si, can be calculated using Formula 5.1 (Song & Xxxxxx, 2009). With the use of Formula 5.2 the expected percentage of parts which get an emergency lead-time can be calculated (Arts, 2012). These formulas are needed to solve the optimization problem. EBO(Si) = E (DLe − (Si − N )) = (5.1) i + Σ + Ti DL x=0 E [(DLe − (Si − x)) ] P (N1i = x) = y − Si − x x! ΣTi " Σ∞ ( ( P )) ( = )# (miLr )x = x=0 y=Si−x e Ti Σ k( ) Si − x x! Ti miLr k! k=0 (miLr )k k! y miLe − ΣTi " x=0 ( ) SΣi−x Σ e−miLe miLe y! y − ( )y ( ( ))# (miLr )x n n ξi(Ti) = mi · P (Ni = Ti) = Σ Σ Σ n   Σ  − y=0 Si − x mi Ti i r i 
AutoNDA by SimpleDocs

Related to Optimization problem

  • Interoperability To the extent required by applicable law, Cisco shall provide You with the interface information needed to achieve interoperability between the Software and another independently created program. Cisco will provide this interface information at Your written request after you pay Cisco’s licensing fees (if any). You will keep this information in strict confidence and strictly follow any applicable terms and conditions upon which Cisco makes such information available.

  • Problem Solving Employees and supervisors are encouraged to attempt to resolve on an informal basis, at the earliest opportunity, a problem that could lead to a grievance. If the matter is not resolved by informal discussion, or a problem-solving meeting does not occur, it may be settled in accordance with the grievance procedure. Unless mutually agreed between the Employer and the Union problem-solving discussions shall not extend the deadlines for filing a grievance. The Union Xxxxxxx or in their absence, the Local Union President, or Area Xxxxxxx, or Chief Xxxxxxx, either with the employee or alone, shall present to the appropriate supervisor a written request for a meeting. If the supervisor agrees to a problem- solving meeting, this meeting shall be held within fourteen (14) calendar days of receipt of the request. The supervisor, employee, Union Xxxxxxx, and up to one (1) other management person shall attempt to resolve the problem through direct and forthright communication. If another member of management is present that person will not be hearing the grievance at Step Two, should it progress to that Step. The employee, the Union Xxxxxxx or in their absence, the Local Union President, or Area Xxxxxxx, or Chief Xxxxxxx, may participate in problem-solving activities on paid time, in accordance with Article 31, Union Rights, Section 1H.

  • Interface A defined set of transmission facilities that separate Load Zones and that separate the NYCA from adjacent Control Areas. Investor-Owned Transmission Owners. A Transmission Owner that is owned by private investors. At the present time these include: Central Xxxxxx Gas & Electric Corporation, Consolidated Edison Company of New York, Inc., New York State Electric & Gas Corporation, Niagara Mohawk Power Corporation, Orange and Rockland Utilities, Inc., and Rochester Gas and Electric Corporation.

  • Year 2000 Problem The Company and its Subsidiaries have reviewed the areas within their business and operations which could be adversely affected by, and have developed or are developing a program to address on a timely basis, the "Year 2000 Problem" (that is, the risk that computer applications used by the Company and its Subsidiaries may be unable to recognize and perform properly date-sensitive functions involving certain dates prior to and any date after December 31, 1999). Based on such review and program, the Company reasonably believes that the "Year 2000 Problem" will not have a Material Adverse Effect.

  • Access Toll Connecting Trunk Group Architecture 9.2.1 If CBB chooses to subtend a Verizon access Tandem, CBB’s NPA/NXX must be assigned by CBB to subtend the same Verizon access Tandem that a Verizon NPA/NXX serving the same Rate Center Area subtends as identified in the LERG.

  • Feedback 14.1 You may, at Your sole discretion, provide Your input regarding the Services, products, services, business or technology plans, including, without limitation, comments or suggestions regarding the possible creation, modification, correction, improvement or enhancement of the Services, products and/or services, or input as to whether You believe Our development direction is consistent with Your own business and IT needs (collectively “Feedback”). We shall be entitled to use Feedback for any purpose without notice, restriction or remuneration of any kind to You and/or Your Representatives.

  • Product Testing Upon request, Customer shall provide Operator a laboratory report for each Product delivery by Customer or Customer’s supplier. Operator will not be obligated to receive Contaminated Product for throughput through the Pipelines, nor will Operator be obligated to accept Product that fails to meet the applicable quality specifications for the Berths under the BAUTA and any Terminal Service Orders issued thereunder.

  • Orientation Program The Company will allow a designated representative of the Local or Bargaining Unit up to one (1) hour per calendar month for the purpose of conducting the Communications, Energy and Paperworkers Union New Members’ Orientation Program. Such meetings will be conducted during the probationary period of employees, and will be held on Company premises. Employees participating in Orientation Program meetings during their normally scheduled working hours will not suffer loss of pay at their regular rate. Orientation Program meetings will be scheduled by Management and a Management representative may attend as an observer.

  • Evaluation Process A. The immediate supervisor will meet with an employee at the start of the employee’s probationary, trial services, transition, and annual review period to discuss performance expectations. The employee will receive copies of their performance expectations as well as notification of any modifications made during the review period. Employee work performance will be evaluated during probationary, trial service and transition review periods and at least annually thereafter. Notification will be given to a probationary or trial service employee whose work performance is determined to be unsatisfactory.

  • Loop Testing/Trouble Reporting 2.1.6.1 TeleConex will be responsible for testing and isolating troubles on the Loops. TeleConex must test and isolate trouble to the BellSouth portion of a designed/non-designed unbundled Loop (e.g., UVL-SL2, UCL-D, UVL-SL1, UCL-ND, etc.) before reporting repair to the UNE Customer Wholesale Interconnection Network Services (CWINS) Center. Upon request from BellSouth at the time of the trouble report, TeleConex will be required to provide the results of the TeleConex test which indicate a problem on the BellSouth provided Loop.

Time is Money Join Law Insider Premium to draft better contracts faster.