scholarly journals Parameterization of MRP for Supply Planning Under Lead Time Uncertainties

Supply Chain ◽  
10.5772/5346 ◽  
2008 ◽  
Author(s):  
A. Dolgui ◽  
F. Hnaien ◽  
A. Louly ◽  
H. Mari
Keyword(s):  
Lead Time ◽  
Supply Planning

scholarly journals Supply planning and inventory control under lead time uncertainty: A review

2013 ◽  
Vol 46 (9) ◽  
pp. 359-370 ◽  
Author(s):  
Oussama Ben Ammar ◽  
Alexandre Dolgui ◽  
Faicel Hnaien ◽  
Mohamed Aly Louly
Keyword(s):  
Inventory Control ◽  
Lead Time ◽  
Time Uncertainty ◽  
Lead Time Uncertainty ◽  
Supply Planning

scholarly journals A State of the Art on Supply Planning and Inventory Control under Lead Time Uncertainty

2013 ◽  
Vol 22 (3) ◽  
Author(s):  
Alexandre DOLGUI ◽  
Oussama BEN AMMAR ◽  
Faicel HNAIEN ◽  
Mohamed Aly O. LOULY
Keyword(s):  
Inventory Control ◽  
Lead Time ◽  
State Of The Art ◽  
Time Uncertainty ◽  
Lead Time Uncertainty ◽  
Supply Planning

Integrated Tubulars Supply Model Provides Cost Savings to Drilling Projects

2020 ◽  
Author(s):  
M. Hamzah
Keyword(s):  
Supply Chain ◽  
Cost Savings ◽  
Asia Pacific ◽  
Potential Cost ◽  
Alternative Scheme ◽  
Safety Stocks ◽  
Storage Location ◽  
Supply Planning ◽  
Drilling Site ◽  
Drilling Project

Classical Oil Country Tubular Goods (OCTG) procurement approach has been practiced in the indus-try with the typical process of setting a quantity level of tubulars ahead of the drilling project, includ-ing contingencies, and delivery to a storage location close to the drilling site. The total cost of owner-ship for a drilling campaign can be reduced in the range of 10-30% related to tubulars across the en-tire supply chain. In recent decades, the strategy of OCTG supply has seen an improvement resulting in significant cost savings by employing the integrated tubular supply chain management. Such method integrates the demand and supply planning of OCTG of several wells in a drilling project and synergize the infor-mation between the pipes manufacturer and drilling operators to optimize the deliveries, minimizing inventory levels and safety stocks. While the capital cost of carrying the inventory of OCTG can be reduced by avoiding the procurement of substantial volume upfront for the entire project, several hidden costs by carrying this inventory can also be minimized. These include storage costs, maintenance costs, and costs associated to stock obsolescence. Digital technologies also simplify the tasks related to the traceability of the tubulars since the release of the pipes from the manufacturing facility to the rig floor. Health, Safety, and Environmental (HSE) risks associated to pipe movements on the rig can be minimized. Pipe-by-pipe traceability provides pipes’ history and their properties on demand. Digitalization of the process has proven to simplify back end administrative tasks. The paper reviews the OCTG supply methods and lays out tangible improvement factors by employ-ing an alternative scheme as discussed in the paper. It also provides an insight on potential cost savings based on the observed and calculated experiences from several operations in the Asia Pacific region.

Investigation of Cost-Influencing Factors Potentially ‎Controllable by Main Contractors in Construction Projects in ‎Iraq

2020 ◽  
Vol 38 (7A) ◽  
pp. 1069-1076
Author(s):  
Layth T. Ali ◽  
Raid S. Abid Ali ◽  
Zeyad S. M. Khaled
Keyword(s):  
Construction Projects ◽  
Project Managers ◽  
Cost Overrun ◽  
Public And Private ◽  
Importance Index ◽  
Labor Recruitment ◽  
Supply Planning ◽  
Major Factors ◽  
And Control ◽  
The Impact

Cost overrun in construction projects is a common phenomenon in Iraq. This might occur due to diversity of factors. This study aims to identify the factors influencing construction projects cost that are potentially controllable by main contractors. A field study through a questionnaire survey was directed to a sample of related Iraqi professional engineers from general contracting companies at both public and private sectors. Their opinions on the impact and frequency of each factor were investigated. The questionnaire offered (59) factors classified in (8) categories namely; legislations, financial and economic, design, contractual, site management, material, labor and equipment. The factors were ranked according to the highest Relative Importance Index (RII). The study revealed (10) major factors that are potentially controllable by main contractors namely; labor productivity, sub-contractors and suppliers performance, equipment productivity, site organization and distribution of equipment, experience and training of project managers, scheduling and control techniques, planning for materials supply, planning for equipment supply, materials delivery and planning for skilled labor recruitment. Recommendations to aid contractors and owners in early identification of these factors are also included in this study.

The ROLE OF CHINA-PAK ECONOMIC CORRIDOR (CPEC) IN LOGISTIC SYSTEM OF PAKISTAN’S AND CHINA’S

2019 ◽  
Vol 6 (1) ◽  
pp. 48-50
Author(s):  
Ikram Uddin
Keyword(s):  
Persian Gulf ◽  
Lead Time ◽  
Fiber Optic ◽  
Delivery Time ◽  
Fiber Optic Cable ◽  
Total Cost ◽  
Economic Complexity ◽  
Shipping Cost ◽  
The Impact

This study will explain the impact of China-Pak Economic Corridor (CPEC) on logistic system of China and Pakistan. This project is estimated investment of US $90 billion, CPEC project is consists of various sub-projects including energy, road, railway and fiber optic cable but major portion will be spent on energy. This project will start from Kashgar port of china to Gwadar port of Pakistan. Transportation is sub-function of logistic that consists of 44% total cost of logistic system and 20% total cost of production of manufacturing and mainly shipping cost and transit/delivery time are critical for logistic system. According to OEC (The Observing Economic Complexity) currently, china is importing crude oil which 13.4% from Persian Gulf. CPEC will china for lead time that will be reduced from 45 days to 10 days and distance from 2500km to 1300km. This new route will help to china for less transit/deliver time and shipping cost in terms of logistic of china. Pakistan’s transportation will also improve through road, railway and fiber optic cabal projects from Karachi-Peshawar it will have speed 160km per hour and with help of pipeline between Gwadar to Nawabshah gas will be transported from Iran. According to (www.cpec.inf.com) Pakistan logistic industry will grow by US $30.77 billion in the end of 2020.

Rethinking Lead Time Reduction Investment: A Real Options Perspective

2008 ◽  
Author(s):  
Suzanne de Treville ◽  
Lenos Trigeorgis ◽  
Benjamin Avanzi
Keyword(s):  
Real Options ◽  
Lead Time ◽  
Lead Time Reduction ◽  
Time Reduction
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