citeseer |
(0) (0 Votes)
|
Views: (1030)
Date: (08-04-09) Pages: () |
Abstract:In mobile wireless systems data on air can be accessed by a large number of mobile users. Many of these applications such as wireless internets and traffic information systems are pull-based, that is, they respond to on-demand user requests. In this paper, we study the scheduling problems of on-demand broadcast environments. Traditionally, the response time of the requests has been used as a performance measure. In this paper we consider the performance as the average cost of request composed of three kinds of costs--access time cost, tuning time cost, and cost of handling failure request. Our main contribution is a self-adaptive scheduling algorithm named LDFC, which computes the delay cost of data item as the priority for broadcast. It performs well compared with some previous algorithms in this context.
Equipment developed for the manufacture of over 100 kg of silicon ingot from one crucible by rechanging from another crucible is described. Attempts were made to eliminate the cost of raising the furnace temperature to 250 C above the melting point of silicon by using an RF coil to melt polycrystalline silicon rod as a means of rechanging the crucible. Microprocessor control of the straight growth process was developed and domonstrated for both 4 inch and 6 inch diameter. Both meltdown and melt stabilization processes were achieved using operat...
Equipment developed for the manufacture of over 100 kg of silicon ingot from one crucible by rechanging from another crucible is described. Attempts were made to eliminate the cost of raising the furnace temperature to 250 C above the melting point of silicon by using an RF coil to melt polycrystalline silicon rod as a means of rechanging the crucible. Microprocessor control of the straight growth process was developed and domonstrated for both 4 inch and 6 inch diameter. Both meltdown and melt stabilization processes were achieved using operat...
Abstract This paper presents the cost analyses required to ascertain the economic viability of HFC networks from the perspective of telephone service providers. The cost model for an HFC network delivering video is presented first in order for the installed first cost (IFC) for video to be computed. Using this HFC network as an infrastructure, the cost model for an HFC network with a telephone overlay is developed, and the incremental cost (IC) analysis for telephony is also presented
No Abstract Available
No Abstract Available
Abstract As we are catapulted into the maelstrom of 21st century server class teraflops, kilowatts, "1000 way" integration, Maturity at Birth TTM pounding, and screaming cost pressure - reliance on the rote, sequential, and evolutionary legacy processes to attain marketplace quality & reliability (Q&R) demands position test & reliability as the impediment to maintaining the industry's rate of advancement. Test and screens effectiveness erosion, insatiable customer expectations (reliability) and demands (function), perpetual revolutionary techn...
In the last two decades, a number of algorithms for the linear single-commodity Min Cost Flow problem (MCF) have been proposed, and several efficient codes are available that implement different variants of the algorithms. The practical significance of the algorithms has been tested by comparing the time required by their implementations for solving "from scratch" instances of (MCF), of different classes, as the size of the problem (number of nodes and arcs) increases. However, in many applications several closely related instances of (MCF) hav...
Abstract This paper develops an interruption cost model for households that, as well as outage duration uses activity patterns, outdoor temperature and daylight to describe the impact of different electrical power outages. For households the interruption costs usually measure the inconvenience associated with interrupted activities and uncomfortable indoor temperature due to the outage. Further, the model also captures the large variations in interruption costs for identical outages among households. The model is applied to a test system, and ...
In the last two decades, a number of algorithms for the linear single-commodity Min Cost Flow problem (MCF) have been proposed, and several efficient codes are available that implement different variants of the algorithms. The practical significance of the algorithms has been tested by comparing the time required by their implementations for solving "from scratch" instances of (MCF), of different classes, as the size of the problem (number of nodes and arcs) increases. However, in many applications several closely related instances of (MCF) hav...
Abstract The results of a one-year study to determine the impact of Ada on software costs, productivity, and quality are presented. A description is given of the statistical analysis and validation of the forty-one completed projects in the Ada costs database in the areas of cost, distribution of effort, error rates, productivity, and reuse potential. Also described are the development and validation of the mathematical model, the power laws formulated as a result of these activities, the development of the model into an automated cost-estimat...
Lecture series on Project and Production Management by Prof. Arun kanda, Department of Mechanical En...
www.greenpowerscience.com This is the tease video to the trough mirror how to video I am editing rig...
and psychology and a new career certificate in animation and game art. · The board approved a propo...
Record high temperatures in April in San Francisco got me to thinking about climate change and the c...
From Taipei - Smoking may be linked to hair loss in Asian men. Researchers surveying over 700 men fo...
Long-term care helps the elderly perform key day-to-day tasks such as eating, personal care and medi...
Commodities expert Philip K. Verleger, Jr.explains why the energy markets should keep the cost crude...
Reuse of syringes, all too common in under-funded clinics, kills 1.3 million each year. Marc Koska c...
Power surges, peak energy consumption www.globalchange.com Peak electricity consumption, power cuts,...
John Antone speaks about current solar opportunities within the utilities market. He addresses curre...
Help at Any Cost: How the Troubled-Teen Industry Cons Parent...
At What Cost? is a name that has been used by a handful of u...
Manufacturing overhead costs (MOH cost) are all manufacturin...
Manufacturing overhead costs (MOH cost) are all manufacturin...
Cost of War is a real-time counter for the Iraq War maintain...
No net cost is a requirement that certain commodity programs...
In business, retail, and accounting, a cost is the value of ...