T he life-cycle framework is the standard way that economists think about the intertemporal allocation of time, effort and money. The framework has a venerable history in the economics profession, with roots in the infinite horizon models of Ramsey (1928) and Friedman (1957) and the finite horizon models of Fisher (1930) and Modigliani and Brumberg (1954). Developments since the 1950s have cons...

Technological advancements made major research challenges in the area of wireless sensor network. Power saving is the foremost criteria in this field. Consumption of energy is considerably reduced on properly designed protocol. This paper focuses on energy aware fuzzy based routing protocol. Protocol based on fuzzy logic computation reduces power consumption by the ratio of 10 when compared to ...

This paper proposes HeatProbe, a per-user power meter system that uses thermal imaging to track the power consumption of individual users in a shared space. The per-user power consumption data produced by this system is helpful in designing personalized feedback to promote power-saving behavior.

The lifecycle theory of saving and consumption predicts that changes in an economy’s rate of economic growth will affect its aggregate saving rate by changing the lifetime resources of younger people relative to older people. However, studies that track the saving behavior of cohorts of household heads over time as they age have yielded estimates of age-saving profiles that are too flat for gro...

The increasing cost of powering high performance networking infrastructure has led to the proposal of various energy saving schemes. The On/Off technique, being the most common energy saving scheme, consists of powering down partially or entirely a network infrastructure for energy saving purposes. Despite their capability to achieve great energy savings, On/Off networks experience high packet-...

This paper discusses algorithms for fuel saving control for large vessels. The fuel saving is achieved by optimizing control at three levels: low level propeller and main engine control, dynamic speed control to avoid peeks in the fuel consumption and finally route planning for optimal speed profiles compensated for varying depth and weather conditions. The control problems involve classical co...

Total energy consumption of video game consoles has grown rapidly in the past few decades due to rapid increases in market penetration, power consumption of the devices, and increasing usage driven by new capabilities. Unfortunately, studies investigating the energy impacts of these devices have been limited and potential responses, such as ENERGY STAR requirements, have been difficult to defin...

The purpose of this work was to obtain a componentwise breakdown of the power consumption a modern laptop. We measured the power usage of the key components in an IBM ThinkPad R40 laptop using an Agilent Oscilloscope and current probes. We obtained the power consumption for the CPU, optical drive, hard disk, display, graphics card, memory, and wireless card subsystems--either through direct mea...