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The cloud computing ecosystem comprises hundreds of providers, offering diverse computing services, incompatible APIs, and significantly different pricing models. Cloud application management platforms hide the heterogeneity of the services and APIs, allowing, to varying degrees, portability between providers. These tools remove technical barriers to switching providers, but they do not provide a...
Distributed renewable energy competitiveness is becoming a reality in most countries resulting in an increase of installed capacity in both developed and developing countries. Mexico, India, Germany, Zambia and South Africa have experienced the lowest average tariffs for solar photovoltaic (PV) through their competitive bidding processes between 2015 and 2017. In South Africa, the latest competitive...
The cloud computing ecosystem comprises hundreds of providers, offering diverse computing services, incompatible APIs, and significantly different pricing models. Cloud application management platforms hide the heterogeneity of the services and APIs, allowing, to varying degrees, portability between providers. These tools remove technical barriers to switching providers, but they do not provide a...
The estimation of customer interruption costs is a challenging task. Understanding the true economic impacts of unwanted power interruptions is a must for planning purposes and for the decision making on electric energy policies. All methodologies that have been adopted to analyze the problem have strong and weak points. This paper presents the outage cost estimations for the small and medium scale...
This paper addresses availability of power infrastructure in data centers and associated costs for downtime. Special attention is given to modeling of solar power sources in terms of availability as well as their implementation into critical infrastructure and the justification for their implementation from cost perspective. Influence on overall electrical reliability and availability of infrastructure...
Intermodal transportation has known a great development during last decades as consequence to the development of container transportation services and supply chain stakes. This development had required efforts and researches to optimize the design and the configuration of transportation network infrastructure and their service. The design, configuration and the service network design of a system performing...
Reliability is an area in which there are many misconceptions due to misunderstanding or misuse of the basic language. It is therefore important to get an understanding of the basic concepts and terminology. Reliability study is considered essential for proper utilization and maintenance of engineering systems and equipment's. A practical definition of reliability is “the probability that a piece...
Managing resources and cleverly pricing them on computing systems is a challenging task. Resource sharing demands careful load balancing and often strives to achieve a win-win situation between resource providers and users. Toward this goal, we consider a joint treatment of load balancing and pricing. We do not assume static pricing to determine load balancing, or vice versa. Instead, we study the...
Market development of electric vehicles in the coming years is a highly relevant issue for many stakeholders, e.g. automobile- and energy-industry, investors as well as policy makers and the public. The market forecasts, however, differ strongly and underlying assumptions are often hard to find. Furthermore, for stakeholders from such diverse fields it can be difficult to convey their own assumptions...
We consider a two-period production and pricing model under a coupon recycling environment, in which a monopolistic manufacturer is able to produce and sell new, remanufactured and upgraded products simultaneously in the market. To attract consumers to return used products and promote the sale of upgraded products, the manufacturer offers coupons in the recycling process. We focus on the competition...
According to the real practice of hospital outpatient operating rooms, the problem of process and capacity planning is analyzed by considering the rule of balancing and increasing the resource utilization; based on queuing theory, this paper brings out the outpatient operating room process upswing plan and establishes simulation models; then, this paper puts forward the total cost objective function...
This paper studies three simple models of regulatory capture under three different economic conditions. In the traditional capture theories, efficient firms prefer capturing government and pretending to be inefficient to get subsidies or pay less tax so that the social welfare could be reduced. In most Chinese researchers' opinions, firms who capture governments to go into the markets have inefficient...
Reliability is a main technical index for aircraft of long life cycle and long storage period. Periodic test is a reasonable confirmation for keep a good reliability of aircraft system. If inspection and maintenance periodically is too long or short, it may exercise an influence upon low reliability and high economy. So, the optimal testing period is the effective way for a good reliability of aircraft...
Reverse supply chain is an effective strategy to achieve social sustainable development and enhance the market competitiveness of enterprises. This paper explains the concept and the operational pattern of reverse supply chain. By analyzing the cost and benefit of every process in the reverse supply chain in detail, this paper builds a cost-benefit model based on its operational process. This cost-benefits...
Resource management and scheduling using economic-based principles and market-oriented models have been proven to be useful for scheduling tasks in Computing Grid. However, most studies only focus on the single objective of either cost or makespan. In this paper, we consider both cost and makespan, and focus on scheduling parallel tasks from Grid users considering a commodity market. A cost and time...
There is a growing demand in the telecom sector for economic models that allow stakeholders to calculate the value of radio spectrum. This increasing necessity is due to growth of both spectrum demand and offer. On the demand side, soaring mobile broadband has made mobile operators demand additional spectrum to improve their network efficiencies. Regarding the offer side, technology neutrality (refarming),...
The paper presents the results of a study examining the development of e-clusters with a particular emphasis on the business models that are suited to their long-term sustainability. It is based on the case study of a food industry e-cluster. Primary data was collected through an on-line best practice review, structured interviews with 20 organisations and workshops with 9 organisations. The study...
The focus of this research is to investigate the tradeoffs between mass, efficiency, and cost of commercially available induction machines (IMs). To support this effort, data from large number of IMs is used to establish Pareto-optimal fronts between efficiency and mass and efficiency and cost. From the Pareto-optimal fronts, relatively straightforward models are formulated for the mass versus efficiency...
Analyzed and evaluated the impact of quality and value indexes the result of the life cycle of the product. Formalized the optimization procedures of quality / value parameters of model structure for the achievement of pre-performance caused by the objective function.
This paper studies the replenishment problem in a single item, multi-supplier environment. A cost optimal model is presented. A comparative analysis with singe supplier model showed the difference in two conditions. An extended model based on model in MTP is proposed when considering the time and production capability constraints in MTO and shows the management issues in organizing MTO supply chain.
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