eLearning

Research on coordinating development evaluation of energy-economy-environment system of Hebei Province

Rong-Min Zhou; Guo-Zhen Wang; Jing-Ru Wu 2010 International Conference on Machine Learning and Cybernetics, 2010

The article builds the coordinating development evaluation index system of energy-economy-environment (3E) which shows for hierarchical structural composed of 44 indexes based on investigation of energy, economic and environmental of Hebei Province, and uses Principal Component Analysis method to calculate the comprehensive development level index of each model; on this basis, it calculates the 3E system coordinating degree by building ...

A Method of Group Decision Task Structuring

Jingle Sun; Pengzhu Zhang; Hui Deng 2007 International Conference on Wireless Communications, Networking and Mobile Computing, 2007

Many decision tasks faced by organizations are too complex to be accomplished by the rugged individualist. Therefore, groups are formed to make the most of important decisions in organizations. But decision-making groups that have often suffered the grinding drudgery of meetings-without-end know how unproductive to deal with their tasks. Having firstly differentiated decision task structuring for group decision makers from ...

Locality-aware Chord over Mobile Ad Hoc Networks

Sonia Gaied Fantar; Habib Youssef 2009 Global Information Infrastructure Symposium, 2009

DHT-based peer-to-peer (P2P) systems construct an overlay network over the physical network where neighborhood relations are determined randomly using a hashing scheme. This usually results in a mismatch between the P2P overlay and the physical network, leading to high latencies and communication overheads. In this paper we propose a topology-based model assignment to solve the topology mismatch for Chord. In ...

Graphite nanoplatelet/silicone composites for thermal interface applications

M. A. Raza; A. V. K. Westwood; C. Stirling 2010 International Symposium on Advanced Packaging Materials: Microtech (APM), 2010

Thermally conducting and effectively electrically insulating nanocomposites for thermal interface applications were developed by dispersing graphite nanoplatelets (GNP) into a silicone matrix by dual asymmetric centrifuge mixing. Thermal conductivity, electrical conductivity, compression and hardness properties of the resulting composites were measured. The effects of GNP particle size and wt.% of GNP on the thermal conductivity and curing behaviour of the ...

Minimizing the Net Present Cost of Deploying and Operating Wireless Sensor Networks

Kevin Dorling; Geoffrey G. Messier; Stefan Valentin; Sebastian Magierowski IEEE Transactions on Network and Service Management, 2015

Minimizing the cost of deploying and operating a wireless sensor network (WSN) involves deciding how to partition a budget between competing expenses such as node hardware, energy, and labor. Most commercial network operators account for interest rates in their budgeting exercises, providing a financial incentive to defer some costs until a later time. In this paper, we propose a net ...

IEEE-USA E-Books

• Detecting, Modelling and Mitigating Market Power

  Policy makers often need to know when market power has been exercised in the past and to be able to predict how market power will be exercised in the future following a change in the market (such as a merger of large generators). Chapter 17 begins with a discussion of how to detect whether market power has been exercised in the past, distinguishing between quantity- withdrawal studies, on the one hand, and price-cost margin studies, on the other hand. The chapter discusses various simple indicators of market power including the Hirschmann-Herfindahl Index (HHI), the pivotal supplier index (PSI) and the residual supply index (RSI). The relationship between these indicators is derived and their pros and cons discussed. The chapter also explores the merits of approaches which focus on the shape of the residual demand curve. The concluding part of the chapter discusses issues that arise in the modelling of electricity market power, including the choice of the type of strategy, the hedge level of the generators and the equilibrium notion. The chapter concludes with a discussion of policies which might serve to mitigate market power.

• Efficient Investment in Network Assets

  Whereas Chapter 9 focused on the issue of the optimal mix of generation assets, Chapter 18 focuses on the issue of the optimal combination of network assets. The chapter opens with a statement of the general network investment problem. This leads to the question of who wins and who loses from a network investment which, in the case of a two-node network, can be expressed in a simple diagram. The chapter shows how it is theoretically possible to derive indicators of the benefits of a hypothetical network expansion, by comparison of the economic welfare outcomes against a baseline. In the special case of a radial network, it is shown that the optimal level of capacity of generation in an exporting region is always larger than the capacity of the exporting network capacity. In the special case where there is only one load node, the optimal level of capacity at the remote nodes is always equal to the exporting capacity of the transmission network. The chapter concludes with a discussion of problems arising from the coordination of generation and network investment in practice.

• Normalizing the Racial Divide in High School Computer Science

  This chapter contains section titled: Westward Senior High School, No Opportunity to Learn Computer Science, Interest But No Place to Hang and Learn, Being Really, Really Smart to Be in Computer Science, Economics and Access, Role Models, Westward as a Sports School, Group Categorization in Schools, The Underrepresentation in Computer Science as an Indicator of Larger Inequities

• Index

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