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In this paper, a quasi-dimensional turbulent combustion model for SI engines is thoroughly studied. On burning rate equation, a new formula is put forward, with mechanism difference from the traditional models. In the traditional models, all different eddies formed in different periods are burnt in identical rate, while in the new formulae, every eddy has its own life and is burnt in different rate...
With the competition in the construction market is fierce increasingly, profit margin of construction enterprises is getting smaller and smaller,and cost control of construction projects become more and more important.The control of construction project cost becomes one of the cores in project management. Construction project management is a systematic, comprehensive, dynamic subject, requiring construction...
This paper presents an evaluation of project efficiencies of 39 companies using data Envelopment Analysis. InFusion Solutions Sdn. Bhd. was chosen as the case study and data were collected from primary and secondary sources. Primary data were obtained through interviews conducted with personnel from the main office and the company branch in Chennai, India. Secondary data were obtained from published...
With the promotion of the bill of quantity in china, the payment system which is based on the bill of quantity has raised even stricter requirement for the final settlement. Towards all the issues exposed in the final settlement process, the owner needs to find an efficient way to control the final settlement urgently. Interior control is a method which is used in the enterprise management so as to...
This paper presents the efficiency measurement model that has been developed based on data envelopment analysis. The model is intended for products produced by organization, optimizes a ratio of multiple weighted outputs to a multiple weighted inputs, where the efficient unit will have a score of one, and the inefficient unit will have a score less than one. The model is simple yet practical in implementation...
Based on the existing study of domestic and international management theory and a variety of psychological motivation theory, principles of incentive based on the psychological contract have been presented in order to effectively mobilize creativity and enthusiasm of employees to improve the company's cohesion and centripetal force, we should apply proper ways or approaches of incentives to establish...
This paper studies a supply contract between a manufacturer and a retailer in the cosmetics industry under which a retailer receives discounts for committing to purchase products before the point of differentiation. The retailer can adjust the order quantities after the trial period based on updated demand forecast information and inventory status by paying a higher per-unit cost for the incremental...
The contractor lacks of identification ability of risks in construction contracts, which result in loopholes and risks that could be avoid in the signing and implementation process of the instruction contract. Due to lack of identification and prevention of these risks, lead to the losses of the contractors in the project construction courses. To the contractor, the significant risk is the owner's...
The construction engineering projects contracted by the construction enterprise groups are large, complex and dispersed in many zones; and there are many participators in it and coordination problems for it are prominent. Therefore, integrated and control management information system of construction engineering project enterprises groups (ICMISCPEG) has being used increasingly. The concept of ICMISCPEG...
Material requirement planning (MRP) is a popular approach used in production processes for planning. Many forms of uncertainly in practice affect the production process and different approaches have been presented for MRP with uncertainty. In order to model MRP problem under fuzzy uncertainly, we present a fuzzy programming model with recourse based on credibility theory. We consider fuzzy variables...
The Just-In-Time (JIT) distribution is to distribute product or service to the clients according to the needs of the clients on the minimal stock. It ensures the supply of right parts in right quantity in the right place and at the right time. For the construction projects, the JIT distribution of the materials on the construction site is the precondition to realize the lean construction. This paper...
Given the price of pledged inventory follows geometric Brownian motions, the paper implements risk estimation strategies of "main body+ debt" and comparatively analyzes loan-to-value ratio decision of banks under static pledge and dynamic pledge fashion. Based on these theory results, the case about inventory financing developed by banks and cooperating logistic firms is analyzed. The study...
The agility of inter-organizational process represents the ability of virtual enterprise to respond rapidly to the changing market environment. Many theories and methodologies about inter-organizational process have been developed but the dynamic agility has seldom been addressed. A virtual enterprise whose process has a high dynamic agility will be able to adjust with the changing environment in...
In this paper, we develop a supply chain model to study the contract design problem for a remanufacturer who delegates the collection of used products to a collector and the collectorpsilas cost is a private information which is opaque to the remanufacturer. We apply the incentive theory to this model and characterize the optimal contract. We find that the contracts are quite different with different...
This study investigates and compares the supplier management in Taiwanese enterprises under different outsourcing strategies. Base on an empirical study through questionnaires, we investigate the supplier management and critical success factors of the Taiwanese enterprises. It is shown that different industries deploy different outsourcing strategies. Organizations should have a good working relationship...
In this paper we discuss the use cases for monitoring of Web services for compliance with policies and service level agreements. In particular, the quality of service associated with Web service interactions and its monitoring rely on the proper use by both parties of related Web service protocols. This monitoring is best served by an event-centric model and an extensible scripting language, such...
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