Qos Constraints-Based Energy-Efficient Model for IP Networks

2013 ◽  
Vol 765-767 ◽  
pp. 1747-1751
Author(s):  
Ding De Jiang ◽  
Wen Juan Wang ◽  
Wei Han Zhang ◽  
Peng Zhang ◽  
Ya Li
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Large Scale ◽  
Ip Networks ◽  
Speed Scaling ◽  
Model Based ◽  
Energy Consumption Model ◽  
Consumption Model ◽  
Simulation Results

This paper proposes an energy-efficient model to overcome the energy-efficient problem in large-scale IP networks, based on QoS constraints. To characterize network energy consumption, we present a link energy consumption model based on the sleep and speed scaling mechanisms. If there is no traffic on a link, let it sleep, or activate it and divide its energy consumption into base energy consumption and traffic energy consumption. And then according to the link energy consumption model, we can build our energy-efficient model to improve the network energy efficiency. Finally, simulation results show that our model can significantly improve the network energy efficiency.

scholarly journals Energy Consumption Model for Drilling Processes Based on Cutting Force

2019 ◽  
Vol 9 (22) ◽  
pp. 4801
Author(s):  
Qi Wang ◽  
Dinghua Zhang ◽  
Bing Chen ◽  
Ying Zhang ◽  
Baohai Wu
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Cutting Force ◽  
Drilling Process ◽  
Cutting Power ◽  
Energy Models ◽  
Auxiliary Power ◽  
Proposed Model ◽  
Energy Consumption Model ◽  
Consumption Model

Accurate energy consumption modelling is critical for the improvement of energy efficiency in machining. Existing energy models of machining processes mainly focus on turning or milling, and there are few energy models for drilling. However, since drilling is often applied to roughing and semi-finishing, and the cutting parameters are large, the energy consumption is huge, and it is urgent to study the consumption of energy during the drilling process. In this paper, an energy consumption model for drilling processes was proposed. Idle power, cutting power, and auxiliary power were included in the proposed energy consumption model, using the cutting force to obtain the cutting power during drilling. Further, the relationship between cutting power and auxiliary power was analyzed. Cutting experiments were then carried out which confirmed the correctness of the proposed model. In addition, compared with several existing energy consumption models, the proposed model had better accuracy and applicability. It is expected that the proposed energy consumption model will have applications for the minimization of energy consumption and improvement of energy efficiency but not limited to only drilling energy consumption prediction.

scholarly journals Exploiting Data-dependencies in Ultra Low-power DSP Arithmetic

VLSI Design ◽  
2001 ◽  
Vol 12 (3) ◽  
pp. 349-363
Author(s):  
V. A. Bartlett ◽  
E. Grass
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Low Power ◽  
Energy Efficient ◽  
Dynamic Logic ◽  
Low Power Consumption ◽  
Ultra Low Power ◽  
Data Dependencies ◽  
Simulation Results ◽  
Asynchronous Environments

Strategies for the design of ultra low power multipliers and multiplier-accumulators are reported. These are optimized for asynchronous applications being able to take advantage of data-dependent computation times. Nevertheless, the low power consumption can be obtained in both synchronous and asynchronous environments. Central to the energy efficiency is a dynamic-logic technique termed Conditional Evaluation which is able to exploit redundancies within the carry-save array and deliver energy consumption which is also heavily data-dependent.Energy efficient adaptations for handling two's complement operands are introduced. Area overheads of the proposed designs are estimated and transistor level simulation results of signed and unsigned multipliers as well as a signed multiplier-accumulator are given.Normalized comparisons with other designs show our approach to use less energy than other published multipliers.

scholarly journals EnerSim: An energy consumption model for large-scale overlay simulators

2013 ◽  
Author(s):  
Christian Gross ◽  
Fabian Kaup ◽  
Dominik Stingl ◽  
Bjorn Richerzhagen ◽  
David Hausheer ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Large Scale ◽  
Energy Consumption Model ◽  
Consumption Model

The Urgency of Green Building’s Development from the Angle of Building Energy Consumption in China

2014 ◽  
Vol 953-954 ◽  
pp. 1561-1565
Author(s):  
Dao Kai Wu ◽  
Yu Hong Zhao ◽  
Xu Ji
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Green Building ◽  
Building Energy ◽  
Building Energy Consumption ◽  
Efficient Performance ◽  
Urgent Task ◽  
Energy Consumption Model ◽  
Consumption Model

Based on a building energy-consumption model, the building energy consumption from 2002 to 2011 in China was figured out. Analysis on building energy consumption trends showed that the building energy consumption would increase inevitably and drastically. Meanwhile, the analysis on green building presented its well energy-efficient performance. The results indicate that green building’s development is an urgent task in China.

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