Software techniques for energy efficient memories

... Introduction Energy Efficient Memories Device Innovations Non-Volatile Memories SSD/Flash Resistive Memories STT-RAM, MRAM, PCM Racetrack Memories Design Innovations Reconfigurable Memories DVS/DVFS Memories ... efficient memories 1.1 Energy Efficient Memories There are broadly two kinds of energy efficient memories First, memories that are built with low power consuming devices or materials Non-volatile memories ... not specifically optimized for energy efficiency In this thesis, we propose compiler optimization and software testing methods to optimize programs for energy efficiency Our techniques provide cross-layer...

RECOMMENDED VENTILATION STRATEGIES FOR ENERGY-EFFICIENT PRODUCTION HOMES pdf

... residential ventilation systems for the U.S Environmental Protection Agency’s (EPA’s) ENERGY STAR® Homes program and recommends mechanical ventilation strategies for new, low-infiltration, energy-efficient, ... Heat-recovery Ventilation 16 Figure Ventilation Costs in Boston Homes with Gas Furnace/AC 21 Figure Ventilation Costs in Wash DC Homes with Gas Furnace/AC 22 Figure Ventilation Costs in Wash DC Homes ... recommendations for ventilation of production homes in four climates, but we also provide information that enables contractors to choose the most suitable ventilation system for each set of circumstances...

Báo cáo hóa học: "Synthesis and characterization of VO2-based thermochromic thin films for energy-efficient windows" pdf

... Mo, and Nb and different doping concentrations We report on the influence of each element and respective concentrations on the crystal structure of the films, optical /thermochromic performance and ... derivative of both curves of the hysteresis loops (heating and cooling) and considering the mean value Results and discussion Structural characterization The crystal structure of the three sets of films ... V1-xMoxO2 thermochromic films deposited by reactive magnetron sputtering Thin Solid Films 1996, 281-282:239 Batista C, Teixeira V, Ribeiro RM: Synthesis and Characterization of V1xMoxO2 Thermochromic...

Overview of recent technology for energy efficient in lighting in textiles

... Philips Lighting However, dimming CFL and MH could be difficult © 2009 Rensselaer Polytechnic Institute All rights reserved 28 GE Lighting GE Lighting 28 Lamps for industrial applications Linear ... a major thoroughfare of Jing Jiang City in the Jiangsu province of China The 180W prototype LED streetlights were installed by Jiangsu Hua Jing Photoelectronics for replacing traditional 250W ... Corporation will introduce into the Japanese market six new LED Downlight Lightings, including three that deliver a light intensity equivalent to a 150-watt incandescent lamp, an industry first for downlight...

Energy efficient algorithms and techniques for wireless mobile clients 0

... Chan and Rajesh Krishna Balan, ”ARIVU: Making Networked Mobile Games Green - A Scalable Power-Aware Middleware”, MOBILE NETWORKS AND APPLICATIONS, Springer Netherlands,(DOI: 10. 100 7/s1 103 6 -01 1 -03 128, ... TECHNIQUES FOR WIRELESS MOBILE CLIENTS BHOJAN ANAND (Ph.D.), NATIONAL UNIVERSITY OF SINGAPORE Directed by: Professor Dr A.L Ananda In this thesis we present a suite of algorithms and techniques for ... URL:http://dx.doi.org/ 10. 100 7/s1 103 6 -01 1 -03 12-8), Feb 201 2 Bhojan Anand, Karthik Thirugnanam, Jeena Sebastien, Pravein Govindan Kannan, Akkihebbal L Ananda, Mun Choon Chan and Rajesh Krishna Balan,...

Energy efficient algorithms and techniques for wireless mobile clients 1

... 55 50 45 40 35 30 25 20 55 10 5 15 5 205 255 Backlight Level Figure 1. 1 Backlight level vs Power for HTC Magic Android Phone [1] 1. 3 .1 Why is saving energy in mobile clients important? Much of ... Battery Type OIA VIA 12 00 mAh Li-Ion (BL-5K) 14 20 mAh Li-Po OIA 15 00 mAh Li-Ion OIA 12 30 mAh Li-Ion GSM talk, standby 6h 30min, 450h 14 h, 300h 14 h, 713 h 8h 10 min,420h WCDMA talk, standby 4h 30min, ... shipment volume reached 4 91. 4 million units in 2 011 , up from 304.7 million units shipped in 2 010 , recording a strong 61. 3% growth, and Android and iPhone phone are claiming for nearly 53% of worldwide...

Energy efficient algorithms and techniques for wireless mobile clients 3

... for saving higher amount of energy while preserving visual quality of the images Existing works on wireless interface energy saving trades-off latency for energy saving They are not suitable for ... data The time instants for waking up to listen for beacon frames are statically determined The BSD protocol trades off energy for lower additional delay It performs well for highly latency tolerable ... across workloads ranging from VoIP and video streaming to file downloads and chats Table 2.1 Power consumption (in Watts) for various modes of Intel (3x3 MIMO) and Atheros (2x2 MIMO) NICs Proxy...

Energy efficient algorithms and techniques for wireless mobile clients 4

... 1.5 46 .1 47 .6 96. 84 MIN FULL FULL 1.5 41 46 88.5 51.97 FULL OFF FULL 12 47 61 77. 04 FULL FULL FULL 15 41 46 102 45 .09 98 Table 3 .4 Power-Savings ... our algorithms for network power management in Quake III [42 ] to represent FPS games, and the Ryzom [107] to represent MMOG games For display power management, we used Quake III [42 ] and its Android ... Default and Staticcons and Dynamic-cons values All the values for Static-aggr (for all maps) were signiﬁcant (at 5%) against the Default values For Dynamic-aggr, all values for maps and (light map and...

Energy efficient algorithms and techniques for wireless mobile clients 5a

... power consuming colours for foreground Then, for each possible combination of background and foreground colours from the sets e[mb ] and e[mf ] that guarantees minimum ACC and CC, we compute pagePower ... 200-250 and 175-220 for original and modiﬁed pages respectively W3C recommended values for minimum chromatic and a chromatic contrast are 500 145 and 125 respectively [117] The transformed pages ... the ’m’ energy eﬃcient colours obtained from the key image, ’acc’ be achromatic contrast and ’cc’ be chromatic contrast between background (bg) and foreground (fg) colours and ’τ ’ be the energy...

Energy efficient algorithms and techniques for wireless mobile clients 5b

... content quality (text and images) comparable to original 4.7.4 Summary The results show that colour transformations constrained by brand identity for texts can save signiﬁcantly more energy than all ... [6] or saves less than 5% energy [59] With our approaches, 60% energy can be saved for web pages with images while providing good quality For image free web pages (most mobile web pages not have ... Transformation - User Study 4.7.3 Overall Result (Combined) We now combine the results of both text and image transformations The tradeoﬀs involved in saving OLED display power are when high energy...

Energy efficient algorithms and techniques for wireless mobile clients 6

... weighted grids for three times steps and for a player moving forward 174 5.3.2 Determining Sleep Times and Intervals We now present our ﬁnal algorithm that determines when and for how long to ... DBA, VBA and RBA respectively DBA has Single Ring and Dual Ring algorithms (both algorithms have micro and macro power management modes), we refer them as DBA-SR and DBA-DR RBA has micro and macro ... traﬃc rate from the server to clients is 16Kbps (≈20packet/sec) and 21Kbps (≈40 packet/sec) in the reverse direction for FPS games; and 15Kbps (≈15 packet/sec) and 16Kbps (≈20 packet/sec) in the...

Energy efficient algorithms and techniques for wireless mobile clients 7

... combination of both for highly occluded large size maps for eﬃcient energy saving at wireless network interface level 6.2 Directions for the Future Research The algorithms and techniques presented ... and algorithms for recolouring the web content with energy eﬃcient colours for OLED displays Energy consumption of OLED displays depends on luminance and colour of the content Our recolouring algorithms ... games, HDR tone mapping techniques and response of HVS to colour and brightness Based on these analysis, we have developed and evaluated a set of algorithms for conserving energy in modern smartphones...

Energy efficient algorithms and techniques for wireless mobile clients 8

... [44] M Anandan, “Progress of LED backlights for LCDs,” Journal of the Society for Information Display, vol 16, no 2, pp 287 –310, 20 08 [Online] Available: http://dx.doi.org/10. 188 9/1. 284 186 4 [45] ... on Mobile computing and networking, New York, NY, USA: ACM, 1999, ser MobiCom ’99 pp 88 –95 [Online] Available: http://doi.acm.org/10.1145/313451.313 488 [62] I S Committee, “IEEE standard for wireless ... Multi., vol 8, no 4, pp 86 6 87 4, Aug 2006 [Online] Available: http://dx.doi.org/10.1109/TMM.2006 .87 6232 [6] M Dong and L Zhong, “Chameleon: for mobile OLED displays,” A color-adaptive...

Implications of building energy standard for sustainable energy efficient design in buildings

... Establishment of policy framework for building energy standards The practice of building energy standard for energy saving and sustainable energy efficient design in building is a complex system, involving ... Methodology for Optimising the Energy Performance of Buildings in Bahrain Energy and Building. 2008, 40, 1297-1303 [50] Energy Efficiency in Buildings EU Forum Driving Investments for energy efficiency in ... interest include: Integration of sustainable envelope for sustainable energy efficient design in building, modeling of envelope sustainable performance assessment tool and reducing building energy...

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