scholarly journals Stochastic Modelling of an Aircraft Considering the Possibility of Precautionary Landing Due to Fuel - Filter Clogging

2020 ◽  
Vol 9 (3) ◽  
pp. 4290-4296
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Stochastic Modelling ◽  
Commercial Aviation ◽  
Regenerative Point ◽  
Proposed Model ◽  
Fuel Filter ◽  
Regenerative Point Technique ◽  
Filter Clogging ◽  
System Effectiveness

The present work deals with the stochastic and cost - benefit analysis of a helicopter taking into account the situation of precautionary landing caused by blockage in its fuel - filter. The system has been analysed by developing a model and finding the various indices of system effectiveness like mean time to filter clogging, expected up (flying) time, expected number of precautionary landings etc. The regenerative point technique has been used for the purpose. The obtained measures have been further used to analyse the profit generated by the system. Graphical study of the proposed model has also been done. The suggested methodology finds its application in commercial aviation sector

Optimize the Fluctuations on Iraqi Economic Growth based on the oil prices using linear programming approach

2021 ◽  
Vol 39 (11) ◽  
Author(s):  
Ahmed Alrawi
Keyword(s):  
Economic Growth ◽  
Linear Programming ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Programming Approach ◽  
Linear Programming Approach ◽  
Proposed Model ◽  
Optimal Values ◽  
Quality Features

This study discus the Fluctuations on Iraqi Economic Growth using  linear programming approach.  This article proposes an operational approach for research to maximize customer satisfaction by optimizing the quality levels of numerous quality attributes of a physical product within the limits of the manufacturer's requirements. The linear model of programming has been shown using the data acquired for an example bicycle product. The optimal values for the quality of selected bicycle quality features have been calculated using  optimization software. A cost-benefit analysis for some quality features of the crude oil was conducted to validate the proposed model. The model discussed in this article considers not only pleasure of customers but also satisfaction of the producer with the costs associated with the product

A regional approach to optimizing the location of rural handpumps

2015 ◽  
Vol 5 (3) ◽  
pp. 493-501 ◽  
Author(s):  
Omar S. Hopkins
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Optimal Number ◽  
Point Sources ◽  
Decision Makers ◽  
Sub Saharan Africa ◽  
Proposed Model ◽  
Rural Water ◽  
Time Savings ◽  
Sub Saharan

Many rural water supply projects in sub-Saharan Africa are based on the installation of public handpumps. One of the key benefits of these projects is distance and time savings. Surprisingly, references to rural water planning rarely provide systematic approaches to optimizing distance-related benefits. This paper develops a conceptual model to identify the number and location of point sources that maximizes benefits to consumers, thereby serving as an aid to decision makers in identifying good alternatives. The proposed model is based on willingness to pay, a location model to identify optimal locations of sources, and a cost–benefit analysis. The model shows that as the number of sources increases, the distance between households and sources decreases but the user fee must increase to generate the revenue required to maintain them. Higher fees will dissuade households from using the point sources and hence reduce the aggregate distance savings that accrue. This suggests that there is an optimal number and location of point sources.

Optimized Product Design Methodology: A Combinatorial Reverse Logistic Cost-Benefit Analysis Model of WEEPs

2013 ◽  
Vol 650 ◽  
pp. 692-697
Author(s):  
Jia Lli Huang
Keyword(s):  
Product Design ◽  
Design Methodology ◽  
Programming Model ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Analysis Model ◽  
Proposed Model ◽  
Reverse Logistic ◽  
Logistic Cost ◽  
Product Recycling

The growing amount of waste electrical and electronic products has been a tough issue in many countries. Widely expressed public concern for the environment and increasingly stringent regulations have been putting pressure on related manufacturers, forcing them to produce and dispose products in an environmentally responsible manner. Thus, during the conception and development of products, emphasis is now being put on designing products for ease of recycling and disposal. This paper presents a mathematical programming model as a tool for identifying the best design plan for optimization of WEEPs reverse logistic cost among alternative schemes. The monetary factors in the model includes the costs of main activities during the whole product recycling process, which consists of transportation, inspection, clean, repair, disassembly, materials recovery and wastes disposal as well as the benefits derived from returned products to be reused and recovered and energy acquired from the solid wastes incineration. Based on the presented model, designers could figure out the best combination options in materials, structural layout and inter-part connections. Finally, different design plans for optical mouse are discussed as a case example to offer a better insight into the proposed model and product design methodology.

The Use of Cost-Benefit Analysis for Evaluating Efficiency of Public Investment Projects (The Case of Sochi-2014 Winter Olympic Games)

2011 ◽  
pp. 57-78
Author(s):  
I. Pilipenko
Keyword(s):  
Net Present Value ◽  
Olympic Games ◽  
Cost Benefit Analysis ◽  
Public Investment ◽  
Cost Benefit ◽  
Investment Efficiency ◽  
Benefit Analysis ◽  
Step Method ◽  
Investment Projects ◽  
The Usa

The paper analyzes shortcomings of economic impact studies based mainly on input- output models that are often employed in Russia as well as abroad. Using studies about sport events in the USA and Olympic Games that took place during the last 30 years we reveal advantages of the cost-benefit analysis approach in obtaining unbiased assessments of public investments efficiency; the step-by-step method of cost-benefit analysis is presented in the paper as well. We employ the project of Sochi-2014 Winter Olympic and Paralympic Games in Russia to evaluate its efficiency using cost-benefit analysis for five accounts (areas of impact), namely government, households, environment, economic development, and social development, and calculate the net present value of the project taking into account its possible alternatives. In conclusion we suggest several policy directions that would enhance public investment efficiency within the Sochi-2014 Olympics.

Hostile Takeovers and Anti-takeover Defenses in the Russian Corporate Market

2007 ◽  
pp. 70-84 ◽  
Author(s):  
E. Demidova
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Benefit Analysis ◽  
Costs And Benefits ◽  
Hostile Takeovers ◽  
Russian Market ◽  
Takeover Defenses ◽  
The Cost ◽  
European Markets

This article analyzes definitions and the role of hostile takeovers at the Russian and European markets for corporate control. It develops the methodology of assessing the efficiency of anti-takeover defenses adapted to the conditions of the Russian market. The paper uses the cost-benefit analysis, where the costs and benefits of the pre-bid and post-bid defenses are compared.

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