Modeling and Simulation of Lean Supply Chain with the Consideration of Delivery Consolidation

2011 ◽  
Vol 467-469 ◽  
pp. 853-858 ◽  
Author(s):  
Zhou Miao ◽  
Ke Lin Xu
Keyword(s):  
Supply Chain ◽  
Programming Model ◽  
Chain Model ◽  
Ant Colony Optimization Algorithm ◽  
Optimal Frequency ◽  
Non Linear Programming ◽  
Supply And Distribution ◽  
Supply Chain Model ◽  
Production Inventory ◽  
Lean Supply Chain

An integrated production-inventory-delivery lean supply chain model is discussed. The model is integrated with production, supply and distribution through cost. And the delivery of purchasing and distribution is consolidated. A non-linear programming model with multivariable is proposed. The length of path and the frequency of delivery are regarded as decision-making variables. The optimal delivery path and the length of path are first solved by using improved ant colony optimization algorithm. And the optimal frequency of delivery and the batch of delivery are achieved. Last, the model is validated through an example and the result indicates the model is simple and practical. Moreover it is meaningful for practice.

A Study on Leagile Supply Chain Model and Performance Evaluation System Based on Lean Agile Theory

2014 ◽  
Vol 635-637 ◽  
pp. 1771-1775 ◽  
Author(s):  
Hui Min Jia ◽  
Kai Chao Yu ◽  
Jin Chang Zhang
Keyword(s):  
Supply Chain ◽  
Performance Evaluation ◽  
Evaluation System ◽  
Operating Mode ◽  
Agile Manufacturing ◽  
Chain Model ◽  
Performance Evaluation System ◽  
Supply Chain Model ◽  
And Performance ◽  
Lean Supply Chain

Leagile supply chain integrates lean supply chain and agile supply chain. In this paper, the theory of lean production and agile manufacturing are compared and analyzed, and then the leagile supply chain model and the performance evaluation system based on DEA are established. Based on the above, this paper provides an example of the evaluation system to verify the operability and effectiveness, which can provide the reference for enterprises to improve operating mode of the supply chain or develop a new leagile supply chain.

scholarly journals Optimal Pricing and Ordering Policy for Two Echelon Varying Production Inventory System

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Brojeswar Pal ◽  
Shib Sankar Sana ◽  
Kripasindhu Chaudhuri
Keyword(s):  
Supply Chain ◽  
Raw Materials ◽  
Chain Model ◽  
Selling Price ◽  
Lot Size ◽  
Ordering Policy ◽  
Supply Chain Model ◽  
Production Inventory ◽  
Test Feasibility ◽  
Optimal Ordering

The paper proposes a two-stage supply chain model for price sensitive demand in imperfect production system while manufacturer and supplier are the members of the chain. The supplier screens the raw materials first and supplies good materials to the manufacturer at a constant rate. The production rate varies randomly within a finite interval. The inventory cycle of the manufacturer starts with shortages and production and it finishes with shortages again, in which shortages are partially backlogged. We consider a mixture of LIFO (last in, first out) and FIFO (first in, first out) dispatching policies to fill the backlogged demand. Thus, the objective of the proposed paper is to determine the optimal ordering lot-size and selling price of the manufacturer such that the per unit average integrated expected profit of the supply chain model is maximized. A numerical example is provided to analyze and illustrate the behavior and application of the model. Finally, sensitivity analysis of the key parameters are presented to test feasibility of the model.

Three-Layer Supply Chain Production/By-Production Inventory Model Under Fuzzy Rough Environment

2018 ◽  
Vol 17 (01) ◽  
pp. 61-88
Author(s):  
Prasanta Kr Ghosh ◽  
Samar Hazari ◽  
Jayanta Kumar Dey ◽  
Samarjit Kar
Keyword(s):  
Supply Chain ◽  
Raw Materials ◽  
Chain Model ◽  
Holding Costs ◽  
Setup Costs ◽  
Decision Variables ◽  
Constant Rate ◽  
Supply Chain Model ◽  
Production Inventory ◽  
Inventory Holding

An integrated three-layer supply chain model for production and by-production system is formulated under fuzzy-rough (Fu-Ro)-environment. At first, supplier receives the deteriorating items in a lot and supplies the fresh units to manufacturer for production. Manufacturer has two plants: plant-1 and plant-2. Manufacturer purchases these fresh raw materials at a constant rate from supplier to produce the main product in plant-1. Retailer-I has purchased this product from manufacturer of plant-1 to sale to the customers. The residue units of plant-1 have transferred to plant-2 with constant rate to manufacture another usable by-product. Retailer-II purchases this usable by-product and sales to the customers. Ideal costs of supplier, manufacturer and retailer have been taken into account. By-production of residue units of plant-1 not only minimizes the environmental pollution, but also gives some return to the manufacturer. Due to the complexity of environment, inventory holding costs, idle costs and setup costs are considered as Fu-Ro type and these are reduced to crisp ones using Fu-Ro expectation. Supply rate, production and by-production rates are assumed as decision variables. Integrated model has been developed and solved analytically in crisp and Fu-Ro environments to find the optimum value of the decision variables and corresponding individual profits of the members of the supply chain are calculated numerically and graphically. Finally, the model has been realized with a case study of sugar mill.

scholarly journals Single-Manufacturer Multi-Retailer Supply Chain Models with Discrete Stochastic Demand

2021 ◽  
Vol 13 (15) ◽  
pp. 8271
Author(s):  
Yaqing Xu ◽  
Jiang Zhang ◽  
Zihao Chen ◽  
Yihua Wei
Keyword(s):  
Dynamic Programming ◽  
Supply Chain ◽  
Computational Complexity ◽  
Stackelberg Game ◽  
Programming Model ◽  
Dynamic Programming Method ◽  
Game Model ◽  
Chain Model ◽  
Stochastic Demands ◽  
Demand Models

Although there are highly discrete stochastic demands in practical supply chain problems, they are seldom considered in the research on supply chain systems, especially the single-manufacturer multi-retailer supply chain systems. There are no significant differences between continuous and discrete demand supply chain models, but the solutions for discrete random demand models are more challenging and difficult. This paper studies a supply chain system of a single manufacturer and multiple retailers with discrete stochastic demands. Each retailer faces a random discrete demand, and the manufacturer utilizes different wholesale prices to influence each retailer’s ordering decision. Both Make-To-Order and Make-To-Stock scenarios are considered. For each scenario, the corresponding Stackelberg game model is constructed respectively. By proving a series of theorems, we transfer the solution of the game model into non-linear integer programming model, which can be easily solved by a dynamic programming method. However, with the increase in the number of retailers and the production capacity of manufacturers, the computational complexity of dynamic programming drastically increases due to the Dimension Barrier. Therefore, the Fast Fourier Transform (FFT) approach is introduced, which significantly reduces the computational complexity of solving the supply chain model.

Two-echelon imperfect production fuzzy supply chain model for reliability dependent demand with probabilistic deterioration and rework

2021 ◽  
pp. 1-15
Author(s):  
Sudip Adak ◽  
G.S. Mahapatra
Keyword(s):  
Supply Chain ◽  
Production Rate ◽  
Production Cost ◽  
Idle Time ◽  
Chain Model ◽  
Specific Time ◽  
Defective Items ◽  
Imperfect Production ◽  
Supply Chain Model ◽  
Dependent Demand

This paper develops a fuzzy two-layer supply chain for manufacturer and retailer with defective and non-defective types of products. The manufacturer produces up to a specific time, including faulty and non-defective items, and after the screening, the non-defective item sends to the retailer. The retailer’s strategy is to do the screening of items received from the manufacturer; subsequently, the perfect quality items are used to fulfill the customer’s demand, and the defective items are reworked. The retailer considers that customer demand is time and reliability dependent. The supply chain considers probabilistic deterioration for the manufacturer and retailers along with the strategies such as production rate, unit production cost, cost of idle time of manufacturer, screening, rework, etc. The optimum average profit of the integrated model is evaluated for both the cases crisp and fuzzy environments. Managerial insights and the effect of changes in the parameters’ values on the optimal inventory policy under fuzziness are presented.

The problems facing agricultural sector in Zanzibar and the prospects of Waqf-Muzar’ah-supply chain model

Humanomics ◽  
2017 ◽  
Vol 33 (2) ◽  
pp. 189-210 ◽  
Author(s):  
Issa Salim Moh’d ◽  
Mustafa Omar Mohammed ◽  
Buerhan Saiti
Keyword(s):  
Supply Chain ◽  
Interest Rates ◽  
Financial Models ◽  
Agricultural Sector ◽  
Chain Model ◽  
Content Type ◽  
High Interest ◽  
Supply Chain Model ◽  
The Government ◽  
Clove Industry

Purpose This paper aims to identify the appropriate model to address the financial challenges in agricultural sector in Zanzibar. Since the middle of 1960, clove production has continually and significantly decreased because of some problems and challenges that include financial ones. The financial intermediaries such as banks, cooperatives and micro-enterprises provide micro-financing to the farmers with high interest rates along with collateral requirements. The numerous programmes, measures and policies adopted by the relevant parties to find out the solutions to the dwindling clove production have failed. Design/methodology/approach The authors will review and examine several existing financial models, identify the issues and challenges of the current financial models and propose an appropriate Islamic financing model. Findings The numerous programmes, measures and policies adopted by the relevant parties to find out the solutions to the dwindling clove production have failed. This study, therefore, proposed a Waqf-Muzara’ah-supply chain model to address the financial challenge. Partnership arrangement is also suggested in the model to mitigate the issues of high interest rates and collateral that constrains the financial ability of the farmers and their agricultural output. Originality/value The contribution of the agricultural sector to the economic development of Zanzibar Islands is considerable. As one of the important agricultural sectors, the clove industry was the economic backbone of the government of Zanzibar. This study is believed to be a pioneering work; hence, it is the first study that investigates empirically the challenges facing the clove industry in Zanzibar.

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