Modeling for Project Optimization

2019 ◽  
pp. 297-354
Author(s):  
Adedeji B. Badiru
Keyword(s):  
Project Optimization

Results of the project «Optimization of the process of obtaining the service OCT “ (project implementation period 20.06.2019–08.10.2019)

2021 ◽  
pp. 29-37
Author(s):  
Irina Aleksandrovna Rakitina ◽  
Alfiya Gumyarovna Iskhakova ◽  
Evgeny Andreevich Zamytsky ◽  
Marina Vladimirovna Makolina ◽  
Farida Sagitovna Goleeva ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Contact Method ◽  
Optical Coherence ◽  
Non Invasive ◽  
Risk Of Injury ◽  
Eye Tissues ◽  
Implementation Period ◽  
Project Optimization ◽  
Theoretical Foundations

Optical Coherence Tomography (OCT) is a modern, highly accurate, non-invasive study of various eye structures. OCT is a non-contact method that allows a specialist to visualize eye tissue with a very high resolution (1–15 microns), the accuracy of which is comparable to microscopic examination. The theoretical foundations of the OCT method were developed in 1995 by the American ophthalmologist K. Pulafito, and already in 1996–1997 Carl Zeiss Meditec introduced the first device for optical coherence tomography into clinical practice. Today, OCT devices are used to diagnose various diseases of the fundus and anterior segment of the eye. Due to the maximum accuracy, the method of light scanning greatly simplifies the diagnosis of pathologies of the organs of vision, regardless of the cause of their occurrence and the stage of the course. In terms of information content, the technique is not inferior to histology, but the advantage of OCT is the absence of the risk of injury to the eye tissues [1, 2].

scholarly journals Profit Sharing Mechanism of Large EPC Project considering the Behavior of Fairness Concern

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Huimin Li ◽  
Lelin Lv ◽  
Xiaowei An ◽  
Guanghua Dong
Keyword(s):  
Large Scale ◽  
Joint Venture ◽  
Simulation Analysis ◽  
Profit Sharing ◽  
Construction Engineering ◽  
Construction Enterprises ◽  
Cost Coefficient ◽  
Research Findings ◽  
Fairness Concern ◽  
Project Optimization

A large-scale engineering procurement and construction (EPC) project is often conducted by a joint venture. Many factors affect the success of cooperation among participating enterprises, such as trust and the degree of effort of both parties. The most important one is a rational profit sharing mechanism. Reasonable profit sharing mechanism concerns whether the advantages of the EPC model can be fully utilized. In this study, the proposed EPC project is undertaken by a joint venture integrating design and construction enterprises. Moreover, the profit sharing problem arises from the project optimization implemented by both parties. The fairness concern behavior of both parties is considered, and the profit sharing model for the EPC project is established on the basis of game theory. The effect of the fairness concern behavior of both parties on the EPC project optimization and its profit sharing is further analyzed by simulation analysis. The research findings show that the project optimization profit and its sharing are related to not only the efforts and cost coefficient but also the fairness concern behavior of both parties. The research results are conducive to the application of the EPC model in the field of construction engineering.

Study on Simulation and Stability Analysis of Subway Station Excavation from the Vertical Construction Well

2011 ◽  
Vol 250-253 ◽  
pp. 1243-1247
Author(s):  
Jin Shui Xie ◽  
Ming Zhou Bai ◽  
Zhao Yi Xu
Keyword(s):  
Optimization Design ◽  
Simulation Analysis ◽  
Research Result ◽  
Ground Surface ◽  
Support Structure ◽  
Vertical Well ◽  
Transfer Station ◽  
Project Optimization ◽  
Main Station ◽  
Support Methods

Beijing subway Huangzhuang stations is cross-transfer station. It has a complex tunneling structure. The characteristics of the reverse construction vertical well was been thinking in the course of excavation design. The vertical well excavation and support method, horizontal wells channel excavation and support methods, the main station pilot tunnel excavation and support methods were researched to determine in detail. In order to analysis and evaluation the feasibility of excavation and getting into hole, FLAC3D numerical simulation analysis method was applied to do simulation of the vertical well, horizontal channel and the main cavern excavation. All detail construction course of these three-part were been studied. Excavation and supporting method and progress were all included. The ground surface subsidence, deformation of support structure and strengthen structure were been got. On the condition of the vertical well support structure destruction caused by the horizontal guide hole excavation and the group cave effect caused by guiding cave excavation in main station underground building, the support structure and ground soil stability were studied. The research result gave the base technical support for the project optimization design and construction security.

Influence of the project parameters on the LSRM Project optimization

2007 ◽  
Author(s):  
V. S. C. Teixeira ◽  
D. N. Oliveira ◽  
H. Cunha ◽  
L. L. N. Reis ◽  
R. S. T. Pontes
Keyword(s):  
Project Optimization

Project Optimization

2018 ◽  
pp. 173-200
Author(s):  
Edward Fleischman ◽  
Ramon Munoz-Raskin ◽  
Joanna Moody
Keyword(s):  
Project Optimization

scholarly journals Project optimization

2015 ◽  
Vol 68 (1) ◽  
pp. 97-102 ◽  
Author(s):  
Carla De Carli ◽  
Peroni Rodrigo de Lemos
Keyword(s):  
Net Present Value ◽  
Underground Mining ◽  
Mineral Resources ◽  
Mineral Deposit ◽  
Economic Feasibility ◽  
Open Pit ◽  
Optimum Depth ◽  
Combination Of Methods ◽  
Definition Of ◽  
Project Optimization

A mineral deposit can be exploited by underground methods or by open pit methods, defined according to their characteristics, especially in relation to depth and geometry of the ore body and the economic feasibility of the methods. However, there are cases in which the alternative that represents the best return for the project is the application of combined methods, i.e., the open pit followed by underground mining. In these situations, the major difficulty is the definition of the transition point of methods, seeking to maximize the net present value of the project and the use of mineral resources. The premature suspension of activities in the open pit, as well as advancing beyond the optimum depth, can derail the implementation of the combination of methods, so it is important to analyze the project not only individually but also in an integrated way.

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