Fixed Parts

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Spare Parts Inventory Control Under A Fixed Term Contract With A Long Down Constraint

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Author : Douniel Lamghari-Idrissi
language : en
Publisher:
Release Date : 2019

Spare Parts Inventory Control Under A Fixed Term Contract With A Long Down Constraint written by Douniel Lamghari-Idrissi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.

We are interested in service contracts for spare parts. We introduce a new performance measure, XLD (extreme long down), that limits the number of deliveries that are later than an agreed threshold during the contract period. We consider a single item, single location stockpoint serving multiple systems where demand is satisfied in an alternative way if the stockpoint is out of stock. Using a finite horizon Markov decision process, we derive the optimal spare parts inventory policy for meeting the contract at minimum costs. We prove that a state-dependent and time-dependent base stock policy is optimal. We also prove that the optimal base stock level is non-increasing in the number of allowed extreme long downs in the remaining contract period and that the optimal base stock level decreases at most by one unit per step. We formulate three heuristics for our finite horizon problem. These heuristics are a translation of heuristics commonly used for other service measures than the XLD measure. We assess their performance in comparison to the optimal policy. The results of our numerical study show that Heuristic 3, a myopic heuristic, is the best performing with an average optimality gap of 4.5% and an optimality gap lower than 5% in 81% of the instances. The maximum optimality gap is very high for all three heuristics, showing that important savings can be made by taking into account the actual contract performance and the remaining contract duration in stocking decisions.

Stone

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Author :
language : en
Publisher:
Release Date : 1896

Stone written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1896 with Building stones categories.

Industries

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Author :
language : en
Publisher:
Release Date : 1889

Industries written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1889 with Industrial arts categories.

Organizational Direct Support And General Support Maintenance Repair Parts And Special Tools Lists Including Depot Maintenance Repair Parts And Special Tools For Oscilloscope Os 262 P U Nsn 6625 01 007 9416

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Author :
language : en
Publisher:
Release Date : 1990

Organizational Direct Support And General Support Maintenance Repair Parts And Special Tools Lists Including Depot Maintenance Repair Parts And Special Tools For Oscilloscope Os 262 P U Nsn 6625 01 007 9416 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Oscilloscope categories.

Bulletin

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Author : Fiji. Geological Survey Department
language : en
Publisher:
Release Date : 1970

Bulletin written by Fiji. Geological Survey Department and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Geology categories.

Handbook To The Special Loan Collection Of Scientific Apparatus

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Author :
language : en
Publisher:
Release Date : 1876

Handbook To The Special Loan Collection Of Scientific Apparatus written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1876 with categories.

Merchandising Parts And Service Management Of Fixed Operations

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Author : M. Monte Wray
language : en
Publisher:
Release Date : 1982

Merchandising Parts And Service Management Of Fixed Operations written by M. Monte Wray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Automobile industry and trade categories.

The London Edinburgh And Dublin Philosophical Magazine And Journal Of Science

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Author :
language : en
Publisher:
Release Date : 1869

The London Edinburgh And Dublin Philosophical Magazine And Journal Of Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1869 with categories.

The Electrician

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Author :
language : en
Publisher:
Release Date : 1886

The Electrician written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1886 with Electrical engineering categories.

Computer Systems Architecture

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Author : Aharon Yadin
language : en
Publisher: CRC Press
Release Date : 2016-08-19

Computer Systems Architecture written by Aharon Yadin and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-19 with Computers categories.

Computer Systems Architecture provides IT professionals and students with the necessary understanding of computer hardware. It addresses the ongoing issues related to computer hardware and discusses the solutions supplied by the industry. The book describes trends in computing solutions that led to the current available infrastructures, tracing the initial need for computers to recent concepts such as the Internet of Things. It covers computers’ data representation, explains how computer architecture and its underlying meaning changed over the years, and examines the implementations and performance enhancements of the central processing unit (CPU). It then discusses the organization, hierarchy, and performance considerations of computer memory as applied by the operating system and illustrates how cache memory significantly improves performance. The author proceeds to explore the bus system, algorithms for ensuring data integrity, input and output (I/O) components, methods for performing I/O, various aspects relevant to software engineering, and nonvolatile storage devices, such as hard drives and technologies for enhancing performance and reliability. He also describes virtualization and cloud computing and the emergence of software-based systems’ architectures. Accessible to software engineers and developers as well as students in IT disciplines, this book enhances readers’ understanding of the hardware infrastructure used in software engineering projects. It enables readers to better optimize system usage by focusing on the principles used in hardware systems design and the methods for enhancing performance.