Received: 12 November 2002 / Accepted: 22 May 2003 / Published: 31 December 2003 __________________________________________________________________________________ Abstract: Based on a model of a two-heat-reservoir heat engine with a finite high-temperature source and bypass heat leak, the optimal configuration of the cycle is found for the fixed cycle period with another linear heat transfer l...

Article history: Received 23 December 2009 Received in revised form 10 June 2010 Accepted 10 June 2010 Available online 16 July 2010

Wireless sensor networks are the grouping of tiny sensor nodes, which collects the information by sensing activeness from the surroundings similar lands, forests, hills, sea. In wireless sensor networks, using mobile sinks mobility rather than static sink for data collection is the new trend in present years. Current researches are focusing on moving patterns of the mobile sink to achieve optim...

The terrestrial biosphere is currently thought to be a significant sink for atmospheric carbon (C). However, the future course of this sink under rising [CO2] and temperature is uncertain. Some contrasting possibilities that have been suggested are: that the sink is currently increasing through CO2 fertilization of plant growth but will decline over the next few decades because of CO2 saturatio...

Percutaneous radiofrequency (RF) ablation is becoming a standard minimal invasive procedure for treatment of primary liver tumors. In clinical practice, knowledge about geometry and expected size of the coagulation is essential to prevent local tumor recurrence. Particularly the heat-sink effects of large vessels in the vicinity of the electrode may lead to a smaller size of the coagulation zon...

Subject of this thesis is the theory of unique sink orientations of cubes. Such orientations are suitable to model problems from different areas of combinatorial optimization. In particular, unique sink orientations are closely related to the running time of the simplex algorithm. In the following, we try to answer three main questions: How can optimization problems be translated into the frame...

Multi-sink wireless sensor networks are recently gaining interest. They have been introduced to overcome the scalability problem arising in single sink network architectures: by increasing the number of sensor nodes, the information collected at a single sink might become excessive with respect to its communication capacity. In this paper, the topologies formed by means of the IEEE 802.15.4 ass...

We consider the problem of maximizing the lifetime of a wireless sensor network with a mobile sink. The sink travels at finite speed among a subset of possible sink locations to collect data from a stationary set of sensor nodes. The problem we consider chooses a subset of sink locations for the sink to visit, finds a tour for the sink among the selected sink locations, and prescribes an optima...

The book is not just another " pep talk " on The Kitchen Sink and How to Learn to Like It. Its stated purpose is "to discuss how the ingrained ideas which we have inherited, affect us, as women to-day, and to try to decide whether a woman ought to try to adapt herself to them, or whether it is the old pattern that wants adapting". It seems to be directed mainly to the wife and mother of young a...