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Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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1

Wireless Power Transfer  

ScienceCinema (OSTI)

Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: Reduced energy losses during transfer of energy to the battery; A charge potential that is relatively unaffected by up to 25% misalignment of vehicle; and Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand. Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consump

None

2013-11-19T23:59:59.000Z

2

Wireless power transfer to deep-tissue microimplants  

Science Journals Connector (OSTI)

...inductive power link for a wireless endoscope . Biosens Bioelectron...202 . 16 Kurs A ( 2007 ) Wireless power transfer via strongly...energy harvesting: Generating electricity during walking with minimal...resonance-based efficient wireless power delivery systems for biomedical...

John S. Ho; Alexander J. Yeh; Evgenios Neofytou; Sanghoek Kim; Yuji Tanabe; Bhagat Patlolla; Ramin E. Beygui; Ada S. Y. Poon

2014-01-01T23:59:59.000Z

3

Wireless Power Transfer for Electric Vehicles  

SciTech Connect (OSTI)

As Electric and Hybrid Electric Vehicles (EVs and HEVs) become more prevalent, there is a need to change the power source from gasoline on the vehicle to electricity from the grid in order to mitigate requirements for onboard energy storage (battery weight) as well as to reduce dependency on oil by increasing dependency on the grid (our coal, gas, and renewable energy instead of their oil). Traditional systems for trains and buses rely on physical contact to transfer electrical energy to vehicles in motion. Until recently, conventional magnetically coupled systems required a gap of less than a centimeter. This is not practical for vehicles of the future.

Scudiere, Matthew B [ORNL; McKeever, John W [ORNL

2011-01-01T23:59:59.000Z

4

Simulation of a Wireless Power Transfer System for Electric Vehicles with Power Factor Correction  

SciTech Connect (OSTI)

Wireless power transfer has been a popular topic of recent research. Most research has been done to address the limitations of coil-to-coil efficiency. However, little has been done to address the problem associated with the low input power factor with which the systems operate. This paper details the steps taken to analyze a wireless power transfer system from the view of the power grid under a variety of loading conditions with and without power factor correction.

Pickelsimer, Michael C [ORNL; Tolbert, Leon M [ORNL; Ozpineci, Burak [ORNL; Miller, John M [ORNL

2012-01-01T23:59:59.000Z

5

Advanced Wireless Power Transfer Vehicle and Infrastructure Analysis (Presentation)  

SciTech Connect (OSTI)

This presentation discusses current research at NREL on advanced wireless power transfer vehicle and infrastructure analysis. The potential benefits of E-roadway include more electrified driving miles from battery electric vehicles, plug-in hybrid electric vehicles, or even properly equipped hybrid electric vehicles (i.e., more electrified miles could be obtained from a given battery size, or electrified driving miles could be maintained while using smaller and less expensive batteries, thereby increasing cost competitiveness and potential market penetration). The system optimization aspect is key given the potential impact of this technology on the vehicles, the power grid and the road infrastructure.

Gonder, J.; Brooker, A.; Burton, E.; Wang, J.; Konan, A.

2014-06-01T23:59:59.000Z

6

Biocompatible wireless power transferring and charging based on ultrasonic resonance devices  

Science Journals Connector (OSTI)

To increase application area of implantable devices for medical treatment including implantable cardiac defibrillator or deep brain stimulator the rechargeable battery module is highly requested. The previous Li-type battery has limited current sources so that the patient is forced to have surgery just for changing battery. Previous technologies such as magnetic resonance and induction coupling have limited applications because of its short transfer distance compared to device size and magnetic field intensity limitation for the safety of body exposure. As an alternative the biocompatible wireless power transferring and charging technology is proposed using ultrasonic resonance devices. For the high efficient power transferring optimal transfer frequency is calculated based on the acoustic radiation and damping effect. Then the optimal load resistance is selected for matching power condition in receiver. And transmitter is designed to match the optimal transfer frequency. The ultrasonic resonance transmitter and receiver are manufactured with the size of 20 mm diameter 6.0 mm height. The energy conversion efficiency from input electrical power of transmitter and output power of receiver is about 25.6% at 10 cm distance experimentally. The maximum transferring power is up to 15 mW. This result is quite high considered with the device size and the power transfer distance.

2013-01-01T23:59:59.000Z

7

Wireless power transfer for scaled electronic biomedical implants  

E-Print Network [OSTI]

Bandaru, "Enhanced Electromagnetic Interference Shieldingof avoiding electromagnetic interference. Power can be

Theilmann, Paul Thomas

2012-01-01T23:59:59.000Z

8

Wireless Power Transmission  

Office of Scientific and Technical Information (OSTI)

88 88 Lunar Wireless Power Transfer Feasibility Study March 2008 Prof. Zoya Popovic, University of Colorado, Boulder David R. Beckett, Scott R. Anderson, Diana Mann, Stuart Walker, Independent Consultants Sheldon Fried, Ph.D., National Security Technologies, LLC Abstract - This study examines the feasibility of a multi-kilowatt wireless radio frequency (RF) power system to transfer power between lunar base facilities. Initial analyses, show that wireless power transfer (WPT) systems can be more efficient and less expensive than traditional wired approaches for certain lunar and terrestrial applications. The study includes evaluations of the fundamental limitations of lunar WPT systems, the interrelationships of possible operational parameters, and a baseline design approach for a notionial system that could be used in the near

9

A SiC MOSFET Based Inverter for Wireless Power Transfer Applications  

SciTech Connect (OSTI)

In a wireless power transfer (WPT) system, efficiency of the power conversion stages is crucial so that the WPT technology can compete with the conventional conductive charging systems. Since there are 5 or 6 power conversion stages, each stage needs to be as efficient as possible. SiC inverters are crucial in this case; they can handle high frequency operation and they can operate at relatively higher temperatures resulting in reduces cost and size for the cooling components. This study presents the detailed power module design, development, and fabrication of a SiC inverter. The proposed inverter has been tested at three center frequencies that are considered for the WPT standardization. Performance of the inverter at the same target power transfer level is analyzed along with the other system components. In addition, another SiC inverter has been built in authors laboratory by using the ORNL designed and developed SiC modules. It is shown that the inverter with ORNL packaged SiC modules performs simular to that of the inverter having commercially available SiC modules.

Onar, Omer C [ORNL] [ORNL; Chinthavali, Madhu Sudhan [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Ning, Puqi [Chinese Academy of Sciences (CAS)] [Chinese Academy of Sciences (CAS); White, Cliff P [ORNL] [ORNL; Miller (JNJ), John M. [JNJ-Miller PLC] [JNJ-Miller PLC

2014-01-01T23:59:59.000Z

10

SiC MOSFET Based Single Phase Active Boost Rectifier with Power Factor Correction for Wireless Power Transfer Applications  

SciTech Connect (OSTI)

Wireless Power Transfer (WPT) technology is a novel research area in the charging technology that bridges the utility and the automotive industries. There are various solutions that are currently being evaluated by several research teams to find the most efficient way to manage the power flow from the grid to the vehicle energy storage system. There are different control parameters that can be utilized to compensate for the change in the impedance due to variable parameters such as battery state-of-charge, coupling factor, and coil misalignment. This paper presents the implementation of an active front-end rectifier on the grid side for power factor control and voltage boost capability for load power regulation. The proposed SiC MOSFET based single phase active front end rectifier with PFC resulted in >97% efficiency at 137mm air-gap and >95% efficiency at 160mm air-gap.

Onar, Omer C [ORNL] [ORNL; Tang, Lixin [ORNL] [ORNL; Chinthavali, Madhu Sudhan [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Miller (JNJ), John M. [JNJ-Miller PLC] [JNJ-Miller PLC

2014-01-01T23:59:59.000Z

11

Virtualizing Power Cords by Wireless Power Transmission and Energy Harvesting  

E-Print Network [OSTI]

existing wireless power transfer scheme, this method can deliver electric power over a wide range, there is a general need to remove the electrical cords from rooms at low cost. If the wireless communication different methods. The first approach routes electric power by wireless transfer on two-dimensional surfaces

Tentzeris, Manos

12

Wireless Transfer of Electricity in Outer Space  

E-Print Network [OSTI]

Author offers conclusions from his research of a revolutionary new idea - transferring electric energy in the hard vacuum of outer space wirelessly, using a plasma power cord as an electric cable (wire). He shows that a certain minimal electric currency creates a compressed force that supports the plasma cable in the compacted form. A large energy can be transferred hundreds of millions of kilometers by this method. The required mass of the plasma cable is only hundreds of grams. He computed the macroprojects: transference of hundreds kilowatts of energy to Earth's Space Station, transferring energy to the Moon or back, transferring energy to a spaceship at distance 100 million of kilometers, the transfer energy to Mars when one is located at opposed side of the distant Sun, transfer colossal energy from one of Earth's continents to another continent (for example, between Europe-USA) wirelessly-using Earth's ionosphere as cable, using Earth as gigantic storage of electric energy, using the plasma ring as huge...

Bolonkin, A

2007-01-01T23:59:59.000Z

13

Wireless Transfer of Electricity in Outer Space  

E-Print Network [OSTI]

Author offers conclusions from his research of a revolutionary new idea - transferring electric energy in the hard vacuum of outer space wirelessly, using a plasma power cord as an electric cable (wire). He shows that a certain minimal electric currency creates a compressed force that supports the plasma cable in the compacted form. A large energy can be transferred hundreds of millions of kilometers by this method. The required mass of the plasma cable is only hundreds of grams. He computed the macroprojects: transference of hundreds kilowatts of energy to Earth Space Station, transferring energy to the Moon or back, transferring energy to a spaceship at distance 100 million of kilometers, the transfer energy to Mars when one is located at opposed side of the distant Sun, transfer colossal energy from one of Earth's continents to another continent (for example, between Europe-USA) wirelessly-using Earth ionosphere as cable, using Earth as gigantic storage of electric energy, using the plasma ring as huge MagSail for moving of spaceships. He also demonstrates that electric currency in a plasma cord can accelerate or brake spacecraft and space apparatus.

Alexander Bolonkin

2007-01-04T23:59:59.000Z

14

Context-for-Wireless: Context-Sensitive Energy-Efficient Wireless Data Transfer  

E-Print Network [OSTI]

Context-for-Wireless: Context-Sensitive Energy-Efficient Wireless Data Transfer Ahmad Rahmati and Lin Zhong Department of Electrical & Computer Engineering Rice University, Houston, TX 77005 {rahmati by choosing wireless interfaces for data transfers based on network condition estimation. We show

Zhong, Lin

15

Reducing Power Consumption of Wireless Pulse Oximeters  

Science Journals Connector (OSTI)

Purpose...– To implement the signal processing algorithms into a data evaluation unit powered by mains electricity whilst the measuring head is powered by ... it is still not used in today’s wireless

N. Stuban; M. Niwayama

2012-01-01T23:59:59.000Z

16

Dynamic Wireless Power Transfer Feasibility  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

17

Optimal Operating Frequency in Wireless Power Transmission for Implantable Devices  

E-Print Network [OSTI]

Optimal Operating Frequency in Wireless Power Transmission for Implantable Devices Ada S. Y. Poon, Stephen O'Driscoll, and Teresa H. Meng Abstract-- This paper examines short-range wireless power- ing run on power levels ranging from 10 µW to 1 mW. However, the wireless interface for both power

Poon, Ada

18

Power and spectrum efficient communications in wireless ad hoc networks  

E-Print Network [OSTI]

Ephremides, “Joint Scheduling and Power Control for WirelessOptimal Power Control, Scheduling, and Routing in UWBDistributed Joint Scheduling and Power Control Algorithm for

Qu, Qi

2008-01-01T23:59:59.000Z

19

A Realistic Power Consumption Model for Wireless Sensor Network Devices  

E-Print Network [OSTI]

1 A Realistic Power Consumption Model for Wireless Sensor Network Devices Qin Wang, Mark Hempstead}@eecs.harvard.edu Abstract-- A realistic power consumption model of wireless communication subsystems typically used in many sensor network node devices is presented. Simple power consumption models for major components

Hempstead, Mark

20

Wireless power transmission using ultrasonic guided waves  

Science Journals Connector (OSTI)

The unavailability of suitable power supply at desired locations is currently an important obstacle in the development of distributed, wireless sensor networks for applications such as structural health monitoring of aircraft. Proposed solutions range from improved batteries to energy harvesting from vibration, temperature gradients and other sources. A novel approach is being investigated at Cardiff University School of Engineering in cooperation with Airbus. It aims to utilise ultrasonic guided Lamb waves to transmit energy through the aircraft skin. A vibration generator is to be placed in a location where electricity supply is readily available. Ultrasonic waves generated by this device will travel through the aircraft structure to a receiver in a remote wireless sensor node. The receiver will convert the mechanical vibration of the ultrasonic waves back to electricity, which will be used to power the sensor node. This paper describes the measurement and modelling of the interference pattern which emerges when Lamb waves are transmitted continuously as in this power transmission application. The discovered features of the pattern, such as a large signal amplitude variation and a relatively high frequency, are presented and their importance for the development of a power transmission system is discussed.

A Kural; R Pullin; C Featherston; C Paget; K Holford

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

11 - Energy harvesters for powering wireless systems  

Science Journals Connector (OSTI)

Abstract: This chapter focuses on the strategies and devices used to convert the energy present in the environment into electricity to supply wireless and mobile systems. The ‘energy harvesting’ discipline is proving to be the first relevant response to the need for power supply without wire connections and batteries. Many transduction principles were investigated, and a number of design solutions were described in the literature. This chapter aims to provide the tools for static and dynamic design of energy harvesters, with focus on kinetic generators. Some innovative design solutions are introduced, and the most attractive modelling and simulation strategies are described.

G. De Pasquale

2013-01-01T23:59:59.000Z

22

Energy Parameter Estimation in Solar Powered Wireless Sensor Networks  

Science Journals Connector (OSTI)

The operation of solar powered wireless sensor networks is associated with ... the main challenges is the high variability of solar power input and battery capacity, due to factors such as weather, ... sensor net...

Mustafa Mousa; Christian Claudel

2014-01-01T23:59:59.000Z

23

Wireless electricity (Power) transmission using solar based power satellite technology  

Science Journals Connector (OSTI)

In the near future due to extensive use of energy, limited supply of resources and the pollution in environment from present resources e.g. (wood, coal, fossil fuel) etc, alternative sources of energy and new ways to generate energy which are efficient, cost effective and produce minimum losses are of great concern. Wireless electricity (Power) transmission (WET) has become a focal point as research point of view and nowadays lies at top 10 future hot burning technologies that are under research these days. In this paper, we present the concept of transmitting power wirelessly to reduce transmission and distribution losses. The wired distribution losses are 70 – 75% efficient. We cannot imagine the world without electric power which is efficient, cost effective and produce minimum losses is of great concern. This paper tells us the benefits of using WET technology specially by using Solar based Power satellites (SBPS) and also focuses that how we make electric system cost effective, optimized and well organized. Moreover, attempts are made to highlight future issues so as to index some emerging solutions.

M Maqsood; M Nauman Nasir

2013-01-01T23:59:59.000Z

24

Vidyut: exploiting power line infrastructure for enterprise wireless networks  

Science Journals Connector (OSTI)

Global synchronization across time and frequency domains significantly benefits wireless communications. Multi-Cell (Network) MIMO, interference alignment solutions, opportunistic routing techniques in ad-hoc networks, OFDMA etc. all necessitate synchronization ... Keywords: frequency synchronization, network mimo, power line communications, time synchronization, wireless networks

Vivek Yenamandra, Kannan Srinivasan

2014-08-01T23:59:59.000Z

25

Heat Transfer Enhancement in Thermoelectric Power Generation.  

E-Print Network [OSTI]

??Heat transfer plays an important role in thermoelectric (TE) power generation because the higher the heat-transfer rate from the hot to the cold side of… (more)

Hu, Shih-yung

2009-01-01T23:59:59.000Z

26

Power Control and Transmission Scheduling for Network Utility Maximization in Wireless Networks  

E-Print Network [OSTI]

Power Control and Transmission Scheduling for Network Utility Maximization in Wireless Networks Min power control and transmis- sion scheduling problem in wireless networks with average power constraints. Index Terms--Network utility maximization, power control, transmission scheduling, column generation I

Sharma, Vinod

27

Low Power Filtering Techniques for Wideband and Wireless Applications  

E-Print Network [OSTI]

This dissertation presents design and implementation of continuous time analog filters for two specific applications: wideband analog systems such as disk drive channel and low-power wireless applications. Specific focus has been techniques...

Gambhir, Manisha

2010-10-12T23:59:59.000Z

28

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 2, FEBRUARY 2008 685 Power-Efficient Wireless OFDMA  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 2, FEBRUARY 2008 685 Power-Efficient-- Feedback communication, frequency division multiaccess, minimum energy control, optimization methods/DVB) standards and wireless local area networks [6], [14]. Spectral efficiency and error resilience

Giannakis, Georgios

29

Energy Efficient Scheduling with Power Control for Wireless Networks  

E-Print Network [OSTI]

Energy Efficient Scheduling with Power Control for Wireless Networks Bastian Katz Institute the complexity of scheduling with power control in the SINRG model of interference. Based on a novel scheme) and less energy consumption: power control admits schedules that would otherwise violate interference

Paris-Sud XI, Université de

30

Joint Power-Delay Minimization in Green Wireless Access Networks  

E-Print Network [OSTI]

, adapting power consumption to traffic load [3] or devising intelligent network deployment strategies using an optimization problem that jointly minimizes the power consumption of the network and the sum of data unitJoint Power-Delay Minimization in Green Wireless Access Networks Farah Moety, Samer Lahoud, Kinda

Paris-Sud XI, Université de

31

Efficient near-field wireless energy transfer using adiabatic system variations  

DOE Patents [OSTI]

Disclosed is a method for transferring energy wirelessly including transferring energy wirelessly from a first resonator structure to an intermediate resonator structure, wherein the coupling rate between the first resonator structure and the intermediate resonator structure is .kappa..sub.1B, transferring energy wirelessly from the intermediate resonator structure to a second resonator structure, wherein the coupling rate between the intermediate resonator structure and the second resonator structure is .kappa..sub.B2, and during the wireless energy transfers, adjusting at least one of the coupling rates .kappa..sub.1B and .kappa..sub.B2 to reduce energy accumulation in the intermediate resonator structure and improve wireless energy transfer from the first resonator structure to the second resonator structure through the intermediate resonator structure.

Hamam, Rafif E; Karalis, Aristeidis; Joannopoulos, John D; Soljacic, Marin

2014-09-16T23:59:59.000Z

32

A study of low level vibrations as a power source for wireless sensor nodes  

Science Journals Connector (OSTI)

Advances in low power VLSI design, along with the potentially low duty cycle of wireless sensor nodes open up the possibility of powering small wireless computing devices from scavenged ambient power. A broad review of potential power scavenging technologies ... Keywords: Energy scavenging, Self powered wireless sensing, Vibration to electricity conversion

Shad Roundy; Paul K. Wright; Jan Rabaey

2003-07-01T23:59:59.000Z

33

Utilizing Solar Power in Wireless Sensor Networks  

Science Journals Connector (OSTI)

Sensor networks are designed especially for deploymentin adverse and non-accessible areas without a fixed infrastructure.Therefore, energy conservation plays a crucialrole for these networks. We propose to utilize solar powerin wireless sensor networks, ...

Thiemo Voigt; Hartmut Ritter; Jochen Schiller

2003-10-01T23:59:59.000Z

34

Minimum Power Configuration for Wireless Communication in Sensor Networks  

E-Print Network [OSTI]

conserve more energy than exist- ing minimum power routing and topology control protocols. Furthermore configuration, ad hoc net- works, energy efficiency, wireless communications Part of this article was published aggressively conserve energy in order to operate for extensive periods without wired power sources. Since

35

Saving Energy by Adjusting Transmission Power in Wireless Sensor Networks  

E-Print Network [OSTI]

and communication areas. Energy-efficient communication is an important issue in WSNs because of the limited power distributed algorithms to reduce communication energy consumption in WSNs by minimizing the total transmissionSaving Energy by Adjusting Transmission Power in Wireless Sensor Networks Xiao Chen Department

Rowe, Neil C.

36

A Scheduling Algorithm for Consistent Monitoring Results with Solar Powered High-Performance Wireless Embedded Systems  

E-Print Network [OSTI]

A Scheduling Algorithm for Consistent Monitoring Results with Solar Powered High but critical task for solar powered wireless high power embedded systems. Our algorithm relies on an energy

Simunic, Tajana

37

Efficient Asynchronous Low Power Listening for Wireless Sensor Networks  

E-Print Network [OSTI]

Efficient Asynchronous Low Power Listening for Wireless Sensor Networks Rajesh Krishna Panta, James mechanism to reduce energy consumption of sensor devices and to increase the lifetime of the network. A side during idle listening--the time period for which the radio transceiver of a sensor node is awake

Fisher, Kathleen

38

An Ultra-Wearable, Wireless, Low Power ECG Monitoring System  

E-Print Network [OSTI]

An Ultra-Wearable, Wireless, Low Power ECG Monitoring System Chulsung Park and Pai H. Chou., Suite 107 San Diego, CA 92121, USA Abstract-- Wearable electrocardiograph (ECG) monitoring systems today performance to gold standard ECG electrodes, has been developed. This paper presents a description

Shinozuka, Masanobu

39

Power Electronics Design of a Solar Powered In-car Wireless Tag for Asset Tracking and Parking Applications  

E-Print Network [OSTI]

Power Electronics Design of a Solar Powered In-car Wireless Tag for Asset Tracking and Parking and testing of a power conditioning circuit for a solar powered in-car wireless tag for asset tracking. A suitable solar cell was chosen for its high power density. Charging circuit, hysteresis control circuit

40

Three-dimensional thermal analysis of wirelessly powered light-emitting systems  

Science Journals Connector (OSTI)

...geometrical parameters and thermal conductivities of the...bio-implanted applications. thermal analysis|wireless...wireless power, instead of batteries, could bring additional...battery replacement and battery biocompatibility. Recently...bio-integrated applications. The thermal behaviour of such systems...

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Enhanced heat transfer for thermionic power modules  

SciTech Connect (OSTI)

The thermionic power module is capable of operating at very high heat fluxes, which in turn serve to reduce capital costs. The most efficient operation also requires uniform heat fluxes. The development of enhanced heat transfer systems is required to meet the demand for high heat fluxes (>20 w/cm/sup 2/) at high temperatures (>1500K) which advanced thermionic power modules place upon combustion systems. Energy transfer from the hot combustion gases may take place by convection, radiation, or a combination of radiation and convection. Enhanced convective heat transfer with a jet impingement system has been demonstrated in a thermionic converter. The recently-developed cellular ceramic radiative heat transfer system has also been applied to a thermionic converter. By comparing the jet impingement and cellular ceramic radiative heat transfer systems, an appropriate system may be selected for utilization in advanced thermionic power modules. Results are reported.

Johnson, D.C.

1981-07-01T23:59:59.000Z

42

Novel "Smart Cube" Wireless Sensors with Embedded Processing/Communication/Power Core for "Smart  

E-Print Network [OSTI]

and measurement data. II. BACKGROUND DATA A. RFID Sensors The two responsibilities of wireless sensorsNovel "Smart Cube" Wireless Sensors with Embedded Processing/Communication/Power Core for "Smart presents a novel topology of isotropically radiating "smart cubes" for use in wireless sensors. The novelty

Tentzeris, Manos

43

ANEWFRAMEWORK FOR POWER CONTROL IN WIRELESS DATA NETWORKS: GAMES, UTILITY, AND PRICING  

E-Print Network [OSTI]

David Famolari Wireless Information Network Laboratory (WINLAB) Dept. of Electrical and Computer@winlab.rutgers.edu David Goodman Wireless Information Network Laboratory (WINLAB) Dept. of Electrical and ComputerChapter 1 ANEWFRAMEWORK FOR POWER CONTROL IN WIRELESS DATA NETWORKS: GAMES, UTILITY, AND PRICING

Mandayam, Narayan

44

Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks  

E-Print Network [OSTI]

Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong, Xiaofan,fxjiang,culler}@eecs.berkeley.edu Abstract-- Wireless Sensor Networks are fundamentally limited by their energy storage resources and the power they obtain from their environment. Several micro-solar powered designs have been developed

Culler, David E.

45

Joint Scheduling, Power Control and Routing in Symmetric, One-dimensional, Multi-hop Wireless Networks  

E-Print Network [OSTI]

Joint Scheduling, Power Control and Routing in Symmetric, One-dimensional, Multi-hop Wireless scheduling, routing and power control that achieves max-min fair rate allocation in a multi-hop wireless that a traditional layering network approach, separating routing, scheduling, flow and power control

Paris-Sud XI, Université de

46

Quantitative Analysis of Transmission Power Control in Wireless Ad-hoc Networks  

E-Print Network [OSTI]

1 Quantitative Analysis of Transmission Power Control in Wireless Ad-hoc Networks Seung-Jong Park the issue of transmission power con- trol in wireless ad-hoc networks. In general, it is assumed that minimum transmission power achieves the optimal throughput of an ad-hoc network because it produces

Park, Seung-Jong "Jay"

47

Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks  

E-Print Network [OSTI]

Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong Xiaofan or to redistribute to lists, requires prior specific permission. #12;Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong, Xiaofan Jiang and David Culler EECS Department, University

California at Berkeley, University of

48

Power Controlled Minimum Frame Length Scheduling in TDMA Wireless Networks with  

E-Print Network [OSTI]

Power Controlled Minimum Frame Length Scheduling in TDMA Wireless Networks with Sectored Antennas controlled min- imum frame length scheduling for TDMA wireless networks. Given a set of one-hop transmission scheduling and power control was first addressed by Tamer and Ephremides in [1, 2]. Given a set of one

Arabshahi, Payman

49

Utilizing Solar Power in Wireless Sensor Networks Thiemo Voigt, Hartmut Ritter, Jochen Schiller  

E-Print Network [OSTI]

Utilizing Solar Power in Wireless Sensor Networks Thiemo Voigt, Hartmut Ritter, Jochen Schiller propose to utilize solar power in wireless sensor networks, establishing a topology where ­ changing over propose and evaluate two protocols that perform solar- aware routing. The presented simulation results

Voigt, Thiemo

50

WIRELESS HELIOSTAT AND CONTROL SYSTEM FOR LARGE SELF-POWERED HELIOSTAT FIELDS  

E-Print Network [OSTI]

WIRELESS HELIOSTAT AND CONTROL SYSTEM FOR LARGE SELF-POWERED HELIOSTAT FIELDS Dr. Stephan Kubisch 1 of a wireless mesh network as control technology in a field of self-powered heliostats, thus eliminating heliostats field to be build in the future: About 100 small communication devices, so called Helio

Turau, Volker

51

A wireless, low power, asynchronous, multi-sensor, temperature network  

E-Print Network [OSTI]

Wireless communication is not new. Radio and television broadcasting, as well as air traffic control have used wireless signals in their products for decades. The transmitters for these applications require large antennas ...

Levy, Daniel M. G. H. (Daniel Matthew Guy Ho), 1979-

2003-01-01T23:59:59.000Z

52

Wireless multimedia sensor and actor networks for the next generation power grid  

Science Journals Connector (OSTI)

Electrical power grid is undergoing a major renovation, to meet the power quality and power availability demands of the 21st century. The new power grid, which is also called as the smart grid, aims to integrate the recent technological advancements ... Keywords: Electrical power grid, Smart grid, Wireless multimedia sensor and actor network

Melike Erol-Kantarci; Hussein T. Mouftah

2011-06-01T23:59:59.000Z

53

Kevin P. Boggs || Office of Technology Transfer || 901.678.1712 || kpboggs@memphis.edu Wireless Compact Radar  

E-Print Network [OSTI]

Kevin P. Boggs || Office of Technology Transfer || 901.678.1712 || kpboggs@memphis.edu Wireless 1: Ramp signals obtained from Target #12;Kevin P. Boggs || Office of Technology Transfer || 901.242 m. #12;Kevin P. Boggs || Office of Technology Transfer || 901.678.1712 || kpboggs

Dasgupta, Dipankar

54

Using Variable-Range Transmission Power Control in Wireless Ad Hoc Networks  

E-Print Network [OSTI]

Using Variable-Range Transmission Power Control in Wireless Ad Hoc Networks Javier Gomez and Andrew networks such as ad hoc and sensor networks. First, using previous work by Steele [18], we show that in this paper highlight the need to design future MAC and routing protocols for wireless ad hoc and sensor

Gomez-Castellanos, Javier

55

Delay Bounded Rate and Power Control in Energy Harvesting Wireless Networks  

E-Print Network [OSTI]

in environmentally powered wireless networks with bursty packet arrivals. Varying the size of the energy storage unit such as solar energy, mechanical energy and thermal energy have started finding use in wireless sensor networks, followed by an energy storage unit. The energy harvested by the front end is stored in the storage unit

Rajan, Dinesh

56

RF-Powered Variable Duty Cycle Wireless Sensor Daniel Costinett, Erez Falkenstein, Regan Zane, Zoya Popovic  

E-Print Network [OSTI]

is monitored, and the duty cycle for wireless data transmission adaptively adjusted through use of a low-power with optimizing the interface between the power reception device, and typical low-power sensor loads to achieve presents an optimal DC load to the energy storage device, which provides power to the microcontroller

Popovic, Zoya

57

Relay-Enabled Hybrid Wireless and Powerline Communication Access Network for Smart Power Grid  

Science Journals Connector (OSTI)

As the main approach to realize intelligent electric distribution, the power line communication (PLC) technology still faces the problem of topology complexity in this field. In this article, a Hybrid Wireless–PL...

Huifeng Bai; Mingwei Li; Dongshan Wang…

2014-01-01T23:59:59.000Z

58

Mobile power management for maximum battery life in wireless communication networks  

Science Journals Connector (OSTI)

We address the problem of how a mobile node in a wireless network should vary its transmitter power so that energy consumption is minimized, subject to fixed quality-of-service constraints. Optimal solutions are obtained for channels with stationary, ...

John M. Rulnick; Nicholas Bambos

1996-03-01T23:59:59.000Z

59

A SIMULATION MODEL FOR STREAMING APPLICATIONS OVER A POWER-MANAGEABLE WIRELESS LINK  

E-Print Network [OSTI]

A SIMULATION MODEL FOR STREAMING APPLICATIONS OVER A POWER-MANAGEABLE WIRELESS LINK Andrea-validated simulation model for the exploration of real-time multimedia systems, where system components are modeled

Bogliolo, Alessandro

60

Embedding damage detection algorithms in a wireless sensing unit for operational power  

Science Journals Connector (OSTI)

A low-cost wireless sensing unit is designed and fabricated for deployment as the building block of wireless structural health monitoring systems. Finite operational lives of portable power supplies, such as batteries, necessitate optimization of the wireless sensing unit design to attain overall energy efficiency. This is in conflict with the need for wireless radios that have far-reaching communication ranges that require significant amounts of power. As a result, a penalty is incurred by transmitting raw time-history records using scarce system resources such as battery power and bandwidth. Alternatively, a computational core that can accommodate local processing of data is designed and implemented in the wireless sensing unit. The role of the computational core is to perform interrogation tasks of collected raw time-history data and to transmit via the wireless channel the analysis results rather than time-history records. To illustrate the ability of the computational core to execute such embedded engineering analyses, a two-tiered time-series damage detection algorithm is implemented as an example. Using a lumped-mass laboratory structure, local execution of the embedded damage detection method is shown to save energy by avoiding utilization of the wireless channel to transmit raw time-history data.

Jerome Peter Lynch; Arvind Sundararajan; Kincho H Law; Anne S Kiremidjian; Ed Carryer

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Joint Power Control and Link Scheduling in Wireless Networks for Throughput Optimization  

E-Print Network [OSTI]

Joint Power Control and Link Scheduling in Wireless Networks for Throughput Optimization Liqun Fu formulate the general joint link scheduling and power control problem as an in- teger linear programming optimality. Index Terms--scheduling, power control, SINR constraints. I. INTRODUCTION Due to their unconfined

Huang, Jianwei

62

Energy Efficient Joint Scheduling and Power Control for Wireless Sensor Networks  

E-Print Network [OSTI]

Energy Efficient Joint Scheduling and Power Control for Wireless Sensor Networks Gang Lu in TDMA link scheduling with transmission power control using a realistic SINR-based interference model. We then investigate the scheduling and power control problem with the objective of minimizing

Krishnamachari, Bhaskar

63

Robust and Probabilistic Power-aware Scheduling of Wireless Sensor Networks  

E-Print Network [OSTI]

that sensing devices are equipped with small devices like solar panels to harvest energy. In such scenariosRobust and Probabilistic Power-aware Scheduling of Wireless Sensor Networks Hassan Jaleel to its available power. More importantly, to compensate for the effects of decrease in available power

Egerstedt, Magnus

64

Energy Efficient Greedy Link Scheduling and Power Control in wireless networks  

E-Print Network [OSTI]

We consider the problem of joint link scheduling and power control for wireless networks with average transmission power constraints. Due to the high computational complexity of the optimal policies, we extend the class of greedy link scheduling policies to handle average power constraints. We develop a greedy link scheduling and power control scheme GECS, with provable performance guarantees. We show that the performance of our greedy scheduler can be characterized using the Local Pooling Factor (LPF) of a network graph, which has been previously used to characterize the stability of the Greedy Maximal Scheduling (GMS) policy for wireless networks. We also simulate the performance of GECS on wireless network, and compare its performance to another candidate greedy link scheduling and power control policy.

Sridharan, Arun

2012-01-01T23:59:59.000Z

65

Microsoft PowerPoint - PaulGottliebTechTransfer | Department...  

Broader source: Energy.gov (indexed) [DOE]

Microsoft PowerPoint - PaulGottliebTechTransfer More Documents & Publications Alliance For Sustainable Energy AllianceForSustainableEnergy-Letter.pdf Government Practices...

66

A single sediment-Microbial Fuel Cell powering a wireless telecommunication system Yohann R. J. Thomas a  

E-Print Network [OSTI]

1 A single sediment-Microbial Fuel Cell powering a wireless telecommunication system Yohann R. J Abstract We report the ability of a single sediment-Microbial Fuel Cell (MFC) to power wireless sensor supplied by the sediment-MFC. The MFC developed in this study successfully powered the WSN and results

67

Design and Analysis of Micro-Solar Power Systems for Wireless  

E-Print Network [OSTI]

Design and Analysis of Micro- Solar Power Systems for Wireless Sensor Networks Jaein Jeong UC Berkeley, Computer Science with Xiaofan Jiang and David Culler 11-17-2006 LGE Talk #12;2 Solar Energy in Richmond Field Station Trio Heliomote #12;3 Our Contributions · Model for micro-solar power system

California at Berkeley, University of

68

Asymptotically Optimal Transmission Policies for Large-Scale Low-Power Wireless Sensor Networks  

E-Print Network [OSTI]

Asymptotically Optimal Transmission Policies for Large-Scale Low-Power Wireless Sensor Networks. The objective is to devise joint routing, power control and transmission scheduling policies in order to gather formulate the problem as maximizing the utility of transmissions subject to explicit fairness constraints

Starobinski, David

69

Wireless Sensor Networks Powered by Ambient Energy Harvesting (WSN-HEAP) Survey and  

E-Print Network [OSTI]

Wireless Sensor Networks Powered by Ambient Energy Harvesting (WSN-HEAP) ­ Survey and Challenges networks (WSNs) research has pre- dominantly assumed the use of a portable and limited energy source, viz. batteries, to power sensors. Without energy, a sensor is essentially useless and cannot contribute

Shihada, Basem

70

Wireless power transfer for scaled electronic biomedical implants  

E-Print Network [OSTI]

of (a) standard Si PN solarcell, the cathode metal contactanode Standard Si PN Solarcell (a) Bulk CMOS Photodiode (b)

Theilmann, Paul Thomas

2012-01-01T23:59:59.000Z

71

Wireless power transfer for scaled electronic biomedical implants  

E-Print Network [OSTI]

Vout DC . Positive current represents PCE reducing flow-back146 Figure 4.12: PCE and shunt input resistance versus151 Figure 4.13: PCE versus W Sn and D ratio from analytical

Theilmann, Paul Thomas

2012-01-01T23:59:59.000Z

72

Wireless power transfer for scaled electronic biomedical implants  

E-Print Network [OSTI]

of mobile health or mHealth. A large number of products suchindustries towards mHealth. Another somewhat overlapping

Theilmann, Paul Thomas

2012-01-01T23:59:59.000Z

73

Wireless power transfer for scaled electronic biomedical implants  

E-Print Network [OSTI]

in [41]. For example, bio-fuel cells which convert glucoseunfortunately as with the bio-fuel cells energy densities

Theilmann, Paul Thomas

2012-01-01T23:59:59.000Z

74

Power spectral density estimation for wireless fluctuation enhanced gas sensor nodes  

E-Print Network [OSTI]

Fluctuation enhanced sensing (FES) is a promising method to improve the selectivity and sensitivity of semiconductor and nanotechnology gas sensors. Most measurement setups include high cost signal conditioning and data acquisition units as well as intensive data processing. However, there are attempts to reduce the cost and energy consumption of the hardware and to find efficient processing methods for low cost wireless solutions. In our paper we propose highly efficient signal processing methods to analyze the power spectral density of fluctuations. These support the development of ultra-low-power intelligent fluctuation enhanced wireless sensor nodes while several further applications are also possible.

Mingesz, Robert; Gingl, Zoltan

2014-01-01T23:59:59.000Z

75

Powering a wireless temperature sensor using sediment microbial fuel cells with vertical arrangement of electrodes  

Science Journals Connector (OSTI)

The application of wireless sensors is an important approach for monitoring natural water systems in remote locations; however, limited power sources are a key challenge for successful application of these sensors. Sediment microbial fuel cells (SMFCs) have shown potential as a sustainable power source with low maintenance requirements to power wireless sensors. This study examines electricity generation in lab-scale \\{SMFCs\\} with the sediment from Lake Michigan. Two \\{SMFCs\\} are operated in parallel with a difference in cathode arrangement (floating cathode vs. bottom cathode). The data show that the SMFC with a floating cathode produces more electricity and results in a shorter charging time when an ultracapacitor is connected to the circuit. To control electricity delivery and voltage elevation to a value that can drive a wireless temperature sensor, a power management system (PMS) is developed. With the PMS, both \\{SMFCs\\} can consistently power the wireless temperature sensor for data transmission to a computer, although the number of recorded data within the same period differs. This research provides an effective PMS for power control and valuable experience in SMFC configurations for the next onsite test of the developed \\{SMFCs\\} in Lake Michigan.

Fei Zhang; Lei Tian; Zhen He

2011-01-01T23:59:59.000Z

76

Power output enhancement of a vibration-driven electret generator for wireless sensor applications  

Science Journals Connector (OSTI)

We developed a compact vibration-driven electret generator that excelled at a power output. It succeeded in the operation of wireless sensor modules only on electricity from electret generators. This electret generator can supply enough power to operate a wireless sensor module without an external power source. It was necessary for enabling this operation to enhance the power output of the electret generator. We enhanced the power output by decreasing the parasitic capacitance. To decrease the parasitic capacitance, we fabricated a collector substrate using concave electrodes. We decreased it from 25 to 17 pF. As a result, the power output from our generator was enhanced from 40 to 100 µW considerably at an acceleration of 0.15 g (1.47 m s?2) and a resonance frequency of 30 Hz.

Tatsuakira Masaki; Kenji Sakurai; Toru Yokoyama; Masayo Ikuta; Hiroshi Sameshima; Masashi Doi; Tomonori Seki; Masatoshi Oba

2011-01-01T23:59:59.000Z

77

The "Other" Energy in Buildings: Wireless Power Metering of Plug-in  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The "Other" Energy in Buildings: Wireless Power Metering of Plug-in The "Other" Energy in Buildings: Wireless Power Metering of Plug-in Devices in Building 90 and Homes Speaker(s): Steven Lanzisera Date: June 17, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Anita Estner Miscellaneous and electronic devices consume about one-third of the primary energy used in U.S. buildings, and their energy use is increasing faster than other end-uses. Although these devices have been studied for 30 years, they are not as well understood as the other end-uses due to their great variety and difficulty in collecting representative energy data for them. This talk describes a method for collecting device-level energy use data for these devices using a relatively low-cost wireless mesh networking technology. Over 600 meters were deployed across B90 and three homes to

78

Power Scheduling for Multi-Hop Wireless Networks  

E-Print Network [OSTI]

Maximization of Sum Rate under Power Constraint and DPC (5.1.3 Minimization of Power under Rate Constraint (Maximization of Sum Rate under Power Constraint and ZFDPC (

Yu, Yuan

2009-01-01T23:59:59.000Z

79

Toward space solar power: Wireless energy transmission experiments past, present and future  

Science Journals Connector (OSTI)

Solar power is a reality. Today increasing numbers of photovoltaic and other solar-powered installations are in service around the world and in space. These uses range from the primary electric power source for satellites remote site scientific experiments and villages in developing countries to augmenting the commercial electric grid and providing partial power for individual businesses and homeowners in developed countries. In space electricity generated by photovoltaic conversion of solar energy is the mainstay of power for low Earth and geostationary satellite constellations. Still for all its acceptance as a benign and environmentally friendly energy source terrestrial solar power has yet to be seriously considered a viable technology for providing base electrical generating capacity. The obvious reason is sunshine on Earth is too unreliable. In addition to the diurnal and seasonal cycles inclement weather reduces the average daily period and intensity of insolation. However the Sun shines constantly in space. The challenge is to harvest and transmit the energy from space to Earth. The concept of space solar power based on microwave wireless energy transmission was first put forth more than 25 years ago by Dr. Peter Glaser. We review historical experiments in wireless energy transmission which have brought the technology from a laboratory curiosity to its present status. Results from recent experiments and their implications for wireless energy transmission as an enabling technology for space solar power are reviewed. Current developments are discussed along with proposed terrestrial and space experiments.

Frank E. Little; James O. McSpadden; Kai Chang; Nobuyuki Kaya

1998-01-01T23:59:59.000Z

80

How Wireless Power Charging Technology Affects Sensor Network Deployment and Routing  

E-Print Network [OSTI]

of environmental energy such as sunlight and acoustic vibra- tions [6]­[9]. However, the energy that a solar cell with a large solar cell; the low harvesting efficiency of small solar cells, together with uncontrollableHow Wireless Power Charging Technology Affects Sensor Network Deployment and Routing Bin Tong, Zi

Wang, Guiling

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Dynamic Rate and Power Allocation in Wireless Ad Hoc Networks with Elastic and Inelastic Traffic  

Science Journals Connector (OSTI)

In this paper, we focus on the problem of dynamic rate and power allocation in wireless ad hoc networks with slow-fading channels, where a mixture of elastic and inelastic traffic is supported. A stochastic optimization problem incorporating the quality ... Keywords: Dynamic resource allocation, Elastic flows, Inelastic flows, Particle swarm optimization (PSO), QoS requirements, Stochastic duality theory

Fei Wang; Xiaofeng Liao; Songtao Guo; Hongyu Huang; Tingwen Huang

2013-05-01T23:59:59.000Z

82

Asymptotically Optimal Power-Aware Routing for Multihop Wireless Networks with Renewable  

E-Print Network [OSTI]

1 Asymptotically Optimal Power-Aware Routing for Multihop Wireless Networks with Renewable Energy the performance of multihop radio networks in the presence of energy constraints, and design routing algorithms to optimally utilize the available energy. The energy model allows vastly different energy sources

Srikant, Rayadurgam

83

Multi-hop wireless charging optimization in Low-Power Networks  

E-Print Network [OSTI]

to address the challenging problem of energy consumption in low-power networks. Based on these breakthroughs, none of these works have considered the multihop energy transmission, whose feasibility have been demonstrated recently. In such a system, a node can transmit energy wirelessly to its neighbors. In this paper

Boyer, Edmond

84

Minimum Power Assignment in Wireless Ad Hoc Networks with Spanner Property  

E-Print Network [OSTI]

be tested in polynomial time and is monotone [1], to minimize the maximum assigned power. We also give, they communicate through multi-hop wireless links by using intermediate nodes to relay the message. Larger distance uv . In other words, wuv > wxy if uv > xy and wuv = wxy if uv = xy . For example

Li, Xiang-Yang

85

Minimum Power Assignment in Wireless Ad Hoc Networks with Spanner Property  

E-Print Network [OSTI]

be tested in polynomial time, to minimize the maximum assigned power. We also give polynomial time through multi-hop wireless links by using intermediate nodes to relay the message. Generally, nodes nodes u and v is a monotone increasing function of the Euclidean #12;distance uv . In other words, wuv

Li, Xiang-Yang

86

ENERGY-EFFICIENT GEOGRAPHIC ROUTING IN ENVIRONMENTALLY POWERED WIRELESS SENSOR NETWORKS  

E-Print Network [OSTI]

ENERGY-EFFICIENT GEOGRAPHIC ROUTING IN ENVIRONMENTALLY POWERED WIRELESS SENSOR NETWORKS Kai Zengt- efficient routing protocols are requisite for the WSN appli- cations. In this paper, we study energy-efficient efficient than the corresponding residual energy based protocols without considering the property

Hou, Y. Thomas

87

Power Sources for Wireless Sensor Abstract. Wireless sensor networks are poised to become a very significant  

E-Print Network [OSTI]

technologies and currently untapped sources. Power sources are classified as energy reservoirs, power (i.e. a wire), scavenge available ambient power at the node (i.e. a solar cell). Power sources types of power source technologies is difficult. For example, comparing the efficiency of a solar cell

Frechette, Luc G.

88

Low Power Body Sensor Network for Wireless ECG Based on Relaying of Creeping Waves at 2.4GHz1  

E-Print Network [OSTI]

Low Power Body Sensor Network for Wireless ECG Based on Relaying of Creeping Waves at 2.4GHz1 Engineering Rochester Institute of Technology Abstract- A wireless communication platform for ECG operating applications that demand higher data rates than ECG.1 I. INTRODUCTION The Electrocardiogram (ECG) [1

Tsouri, Gill

89

Wireless Self-powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains  

SciTech Connect (OSTI)

Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design of the next-generation Explorer-II (X-II) live gas main NDE and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested under a prior (also DoE- and NGA co-funded) program, and served as the validation that self-powered robots under wireless control could access and navigate live natural gas distribution mains. The X-II system design ({approx}8 ft. and 66 lbs.) was heavily based on the X-I design, yet was substantially expanded to allow the addition of NDE sensor systems (while retaining its visual inspection capability), making it a modular system, and expanding its ability to operate at pressures up to 750 psig (high-pressure and unpiggable steel-pipe distribution mains). A new electronics architecture and on-board software kernel were added to again improve system performance. A locating sonde system was integrated to allow for absolute position-referencing during inspection (coupled with external differential GPS) and emergency-locating. The power system was upgraded to utilize lithium-based battery-cells for an increase in mission-time. The system architecture now relies on a dual set of end camera-modules to house the 32-bit processors (Single-Board Computer or SBC) as well as the imaging and wireless (off-board) and CAN-based (on-board) communication hardware and software systems (as well as the sonde-coil and -electronics). The drive-module (2 ea.) are still responsible for bracing (and centering) to drive in push/pull fashion the robot train into and through the pipes and obstacles. The steering modules and their arrangement, still allow the robot to configure itself to perform any-angle (up to 90 deg) turns in any orientation (incl. vertical), and enable the live launching and recovery of the system using custom fittings and a (to be developed) launch-chamber/-tube. The battery modules are used to power the system, by providing power to the robot's bus. The support modules perform the functions of centration for the rest of the train as well as odometry pickups using incremental encoding schemes. The electronics architecture is based on a distributed (8-bit) microprocessor architecture (at least 1 in ea. module) communicating to a (one of two) 32-bit SBC, which manages all video-processing, posture and motion control as well as CAN and wireless communications. The operator controls the entire system from an off-board (laptop) controller, which is in constant wireless communication with the robot train in the pipe. The sensor modules collect data and forward it to the robot operator computer (via the CAN-wireless communications chain), who then transfers it to a dedicated NDE data-storage and post-processing computer for further (real-time or off-line) analysis. CMU has fully designed every module in terms of the mechanical, electrical and software elements (architecture only). Substantial effort has gone into pre-prototyping to uncover mechanical, electrical and software issues for critical elements of the design. Design requirements for sensor-providers were also detailed and finalized and provided to them for inclusion in their designs. CMU is expecting to start 2006 with a detailed design effort for both mechanical and electrical components, followed by procurement and fabrication efforts in late winter/spring 2006. The assembly and integration efforts will occupy all of the spring and summer of 2006. Software development will also be a major effort in 2006, and will result in porting and debugging of code on the module- and train-levels in late summer and Fall of 2006. Final pipe mock-up testing is expected in late fall and early winter 2006 with an acceptance demonstration of the robot train (with a sensor-module mock-up) planned to DoE/NGA towards the end of 2006.

Susan Burkett; Hagen Schempf

2006-01-31T23:59:59.000Z

90

A study of low level vibrations as a power source for wireless sensor nodes  

Science Journals Connector (OSTI)

Advances in low power VLSI design, along with the potentially low duty cycle of wireless sensor nodes open up the possibility of powering small wireless computing devices from scavenged ambient power. A broad review of potential power scavenging technologies and conventional energy sources is first presented. Low-level vibrations occurring in common household and office environments as a potential power source are studied in depth. The goal of this paper is not to suggest that the conversion of vibrations is the best or most versatile method to scavenge ambient power, but to study its potential as a viable power source for applications where vibrations are present. Different conversion mechanisms are investigated and evaluated leading to specific optimized designs for both capacitive MicroElectroMechancial Systems (MEMS) and piezoelectric converters. Simulations show that the potential power density from piezoelectric conversion is significantly higher. Experiments using an off-the-shelf PZT piezoelectric bimorph verify the accuracy of the models for piezoelectric converters. A power density of 70 ?W/cm3 has been demonstrated with the PZT bimorph. Simulations show that an optimized design would be capable of 250 ?W/cm3 from a vibration source with an acceleration amplitude of 2.5 m/s2 at 120 Hz.

Shad Roundy; Paul K. Wright; Jan Rabaey

2003-01-01T23:59:59.000Z

91

Optimization of Power Consumption for Wireless Sensor Networks  

Science Journals Connector (OSTI)

Transmission using excess power not only shortens the lifetime of sensor nodes, but also introduces interference. Packets should ideally be transmitted with moderate power. This work proposes a multi-level pow...

Sheng-Tzong Cheng; Jia-Shing Shih

2012-01-01T23:59:59.000Z

92

Powering Wireless Sensor Nodes with Ambient Temperature Changes  

E-Print Network [OSTI]

.25 ambient temperature change. Author Keywords Sensing, Thermal energy harvesting, battery-free sensors. ACM to consider power harvesting as a potential solution. In this paper, we present a thermal power harvester in battery technology. Power harvesting provides an alternative solution for developing sensors that can last

Manchak, John

93

An ultrasound technique for wireless power transmission through tissue to implanted medical devices  

Science Journals Connector (OSTI)

An ultrasound electrical recharging system (USERTM) is developed and tested which wirelessly transmits significant amount of energy through animal tissue to charge implantable devices batteries or capacitors. The goal of this approach is wireless power transmission to active human implant devices. Experiments with transducers with resonant frequencies between 0.5 and 3.5 MHz led us to adopt 0.75 to 1.25 MHz as the range of optimum efficiency. In vitro experiments demonstrated significant charging of 4.1 V medically qualified Li-ion batteries across tissue depths of up to 5 cm. Charging currents close to 300 mA were achieved in vitro. Several in vivo tests confirmed the power delivery in a porcine model. In an in vivo survival test tissue was exposed to 1 MHz ultrasound at an average intensity of 0.4 W/cm2 for 11.5 h. Histology of the exposed tissue showed tissue changes primarily attributable only to surgical implantation of the prototype device. Many traditional and developing implanted medical devices are targets for the introduction of this method of power delivery to reduce the number of battery replacement operations and improve performance compared to the existing electromagnetic method of wireless power delivery. [Work supported by the NIH/NIBIB R44EB007421.

Leon Radziemski

2013-01-01T23:59:59.000Z

94

Versatile Low Power Media Access for Wireless Sensor Networks  

E-Print Network [OSTI]

(and often changing) demands. We build an analytical model of B-MAC's operation. By comparing B, latency, and energy consumption. By deploying a real world mon- itoring application with multihop that the media access mechanism sup- port duty cycles of 1% but be flexible enough to efficiently transfer

Culler, David E.

95

DOWNHOLE POWER GENERATION AND WIRELESS COMMUNICATIONS FOR INTELLIGENT COMPLETIONS APPLICATIONS  

SciTech Connect (OSTI)

The development work during this quarter was focused in the assembly of the downhole power generator hardware and its electronics module. The quarter was also spent in the development of the surface system electronics and software to extract the acoustic data transmitted from downhole to the surface from the noise generated by hydrocarbon flow in wells and to amplify very small acoustic signals to increase the distance between the downhole tool and the surface receiver. The tasks accomplished during this report period were: (1) Assembly of the downhole power generator mandrel for generation of electrical power due to flow in the wellbore. (2) Test the piezoelectric wafers to assure that they are performing properly prior to integrating them to the mechanical power generator mandrel. (3) Coat the power generator wafers to prevent water from shorting the power generator wafers. (4) Test of the power generator using a water tower and an electric pump to create a water flow loop. (5) Test the power harvesting electronics module. (6) Upgrade the signal condition and amplification from downhole into the surface system. (7) Upgrade the surface processing system capability to process data faster. (8) Create a new filtering technique to extract the signal from noise after the data from downhole is received at the surface system.

Paul Tubel

2004-02-01T23:59:59.000Z

96

Wireless Electrical Power to Sub-millimeter Robots  

Science Journals Connector (OSTI)

A sub-millimeter scale coil is investigated as an alternative means to power electronics for small-scale robots. The AC voltage is induced by time-varying magnetic field. FEM analysis of employing magnetic fie...

Robert A. Nawrocki; Dominic R. Frutiger…

2012-01-01T23:59:59.000Z

97

Microsoft PowerPoint - Wireless, Passive Ceramic Strain Sensors_An [Compatibility Mode]  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

June 13, 2013 June 13, 2013 Wireless, Passive Ceramic Strain Sensors for Turbine Engine Applications Gang Shao and Linan An Advanced Materials Processing and Analysis Center (AMPAC) Department of Materials Science and Engineering (MSE) University of Central Florida Orlando, FL 32816 2 Outline  Motivation  Strain Sensors - State of the Art  Objectives  Schedule and timelines  Accomplishment  Future Work  Summary 3 Motivation - applications of turbines  Turbine engines - key for energy generation and propulsion 2007 Energy Generation Statistics (DOE) ~50% Major power generation techniques need turbine engines 4 Motivation - need for wireless strain sensors  Many parts in turbine engines subjected to severe strain/stress in extreme environments  Strain sensors

98

Efficient Power Control for Broadcast in Wireless Communication Systems  

E-Print Network [OSTI]

we focus on the determination of minimum-energy broadcast tree construction taking into consideration- proaches (Section 3), Minimum energy broadcast tree (Section 4), Broadcast incremental power (BIP) with SIR Department of Electrical Engineering, University of Texas at San Antonio, San Antonio, TX 78249 Email

Chronopoulos, Anthony T.

99

Efficient Low Complexity Power Allocation Policies for Wireless Communication Systems  

E-Print Network [OSTI]

QoS Satya Kumar V, Vinod Sharma Department of Electrical Communications Engineering, Indian Institute. Other benefits will be smaller diesel generators and batteries with longer life time. Thus, one or satisfy mean delay constraints when power is a linear/general function of rate. In [13] existence

Sharma, Vinod

100

1 Comparison of Data-driven Link Estimation Methods in Low-power Wireless Networks  

E-Print Network [OSTI]

Abstract—Link estimation is a basic element of routing in low-power wireless networks, and data-driven link estimation using unicast MAC feedback has been shown to outperform broadcast-beacon based link estimation. Nonetheless, little is known about how different data-driven link estimation methods affect routing behaviors. To address this issue, we classify existing data-driven link estimation methods into two broad categories: L-NT that uses aggregate information about unicast and L-ETX that uses information about the individual unicast-physical transmissions. Through mathematical analysis and experimental measurement in a testbed of 98 XSM motes (an enhanced version of MICA2 motes), we examine the accuracy and stability of L-NT and L-ETX in estimating the ETX routing metric. We also experimentally study the routing performance of L-NT and L-ETX. We discover that these two representative, seemingly similar methods of data-driven link estimation differ significantly in routing behaviors: L-ETX is much more accurate and stable than L-NT in estimating the ETX metric, and, accordingly, L-ETX achieves a higher data delivery reliability and energy efficiency than L-NT (for instance, by 25.18 % and a factor of 3.75 respectively in our testbed). These findings provide new insight into the subtle design issues in data-driven link estimation that significantly impact the reliability, stability, and efficiency of wireless routing, thus shedding light on how to design link estimation methods for mission-critical wireless networks which pose stringent requirements on reliability and predictability. Index Terms—Low-power wireless networks, sensor networks, link estimation and routing, data-driven, beacon-based, distancevector routing, geographic routing I.

Hongwei Zhang; Lifeng Sang; Student Member; Anish Arora

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Advanced Heat Transfer Fluids for Concentrated Solar Power (CSP)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Advanced Heat Transfer Fluids for Concentrated Solar Power (CSP) Applications November 1, 2011 Tweet EmailPrint The current levelized cost of energy (LCOE) from concentrated solar power (CSP) is ~ $0.11/kWh. The U.S. Department of Energy has set goals to reduce this cost to ~$0.07/kWh with 6 hours of storage by 2015 and to ~$0.05/kWh with 16 hours of storage by 2020. To help meet these goals, scientists at Argonne National Laboratory are working to improve the overall CSP plant efficiency by enhancing the thermophysical properties of heat transfer

102

PER-NODE POWER MINIMAL MULTICAST TREES WHICH MAXIMIZE THE TIME-TO-FIRST-FAILURE IN ENERGY CONSTRAINED STATIC WIRELESS  

E-Print Network [OSTI]

PER-NODE POWER MINIMAL MULTICAST TREES WHICH MAXIMIZE THE TIME-TO-FIRST-FAILURE IN ENERGY as the time till the first node in the network runs out of battery energy, and minimizing the total power in energy constrained static wireless networks. It is shown in [6] that simply optimizing the TTFF criterion

Arabshahi, Payman

103

Joint Routing, Scheduling And Power Control For Multihop Wireless Networks With Multiple Antennas  

E-Print Network [OSTI]

We consider the problem of Joint Routing, Scheduling and Power-control (JRSP) problem for multihop wireless networks (MHWN) with multiple antennas. We extend the problem and a (sub-optimal) heuristic solution method for JRSP in MHWN with single antennas. We present an iterative scheme to calculate link capacities(achievable rates) in the interference environment of the network using SINR model. We then present the algorithm for solving the JRSP problem. This completes a feasible system model for MHWN when nodes have multiple antennas. We show that the gain we achieve by using multiple antennas in the network is linear both in optimal performance as well as heuristic algorithmic performance.

Vangala, Harish; Sharma, Prof Vinod

2011-01-01T23:59:59.000Z

104

SWAP Project: Beyond the State of the Art on Harvested Energy-Powered Wireless Sensors  

E-Print Network [OSTI]

-efficient paradigm of wireless sensor networks with the self-sustainable capabilities of harvesting systems. SWAP

Rossi, Michele

105

Weak many vs. strong few: reducing BER through packet duplication in power-budgeted wireless connections  

Science Journals Connector (OSTI)

In this paper, we present new energy-aware techniques to lower the packet-level error rates of application-layer connections in wireless ad hoc networks. We consider a model in which each connection is allocated a fixed power budget, and ask: Is it better to use this power budget to send many duplicate packets (at lower power) or fewer packets (at high power)? We consider a scheme in which each application-layer connection is implemented at the physical level by an overlay network consisting of multiple parallel multi-hop paths. Data packets submitted at the connection source are checksummed and replicated. The destination delivers the first error-free copy of each packet, in order, dropping packets that are corrupt or duplicate. We compare our scheme with the traditional scheme in which the source transmits precisely one packet to the destination along a single minimum-hop path. We show that even when both schemes are constrained by identical power consumption bounds, our scheme can use duplication to attain significantly lower packet-level error rates in many common situations. We describe the relationship between packet error rate, the extent of duplication and the path lengths and show that the qualitative nature of the relationships change significantly, depending on available power budget.

Ghassen Ben Brahim; Bilal Khan; Ala Al-Fuqaha; Mohsen Guizani

2008-01-01T23:59:59.000Z

106

Modeling the Effect of Transmission Errors on TCP Controlled Transfers over Infrastructure 802.11 Wireless  

E-Print Network [OSTI]

.11 Wireless LANs Subhashini Krishnasamy Dept. of Electrical Communication Engg. Indian Institute of Science, Bangalore subhashini.kb@ece.iisc.ernet.in Anurag Kumar Dept. of Electrical Communication Engg. Indian depends on the proba- bility that the head-of-the-line packet at the Access Point belongs to that station

Kumar, Anurag

107

1308 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 4, APRIL 2007 Battery Power Efficiency of PPM and FSK in  

E-Print Network [OSTI]

1308 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 4, APRIL 2007 Battery Power batteries, energy efficiency is a critical factor in wire- less sensor networks (WSNs). Orthogonal modulations appro- priate for the energy-limited WSN setup have been investigated under the assumption

Giannakis, Georgios

108

Integrated All-silicon Thin-film Power Electronics on Flexible Sheets For Ubiquitous Wireless Charging Stations based on Solar-energy Harvesting  

E-Print Network [OSTI]

into wireless charging stations. In this work, we combine the thin-film circuits with flexible solar cellsIntegrated All-silicon Thin-film Power Electronics on Flexible Sheets For Ubiquitous Wireless Charging Stations based on Solar-energy Harvesting Liechao Huang, Warren Rieutort-Louis, Yingzhe Hu, Josue

109

Explorer-II: Wireless Self-Powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains  

SciTech Connect (OSTI)

Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design, field-trial and Magnetic Flux Leakage (MFL) sensor evaluation program for the next-generation Explorer-II (X-II) live gas main Non-destructive Evaluation (NDE) and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested under a prior (also DoE- and NGA co-funded) program, and served as the validation that self-powered robots under wireless control could access and navigate live natural gas distribution mains. The X-II system design ({approx}8 ft. and 66 lbs.) was heavily based on the X-I design, yet was substantially expanded to allow the addition of NDE sensor systems (while retaining its visual inspection capability), making it a modular system, and expanding its ability to operate at pressures up to 750 psig (high-pressure and unpiggable steel-pipe distribution mains). A new electronics architecture and on-board software kernel were added to again improve system performance. A locating sonde system was integrated to allow for absolute position-referencing during inspection (coupled with external differential GPS) and emergency-locating. The power system was upgraded to utilize lithium-based battery-cells for an increase in mission-time. The resulting robot-train system with CAD renderings of the individual modules. The system architecture now relies on a dual set of end camera-modules to house the 32-bit processors (Single-Board Computer or SBC) as well as the imaging and wireless (off-board) and CAN-based (on-board) communication hardware and software systems (as well as the sonde-coil and -electronics). The drive-module (2 ea.) are still responsible for bracing (and centering) to drive in push/pull fashion the robot train into and through the pipes and obstacles. The steering modules and their arrangement, still allow the robot to configure itself to perform any-angle (up to 90 deg) turns in any orientation (incl. vertical), and enable the live launching and recovery of the system using custom fittings and a (to be developed) launch-chamber/-tube. The battery modules are used to power the system, by providing power to the robot's bus. The support modules perform the functions of centration for the rest of the train as well as odometry pickups using incremental encoding schemes. The electronics architecture is based on a distributed (8-bit) microprocessor architecture (at least 1 in ea. module) communicating to a (one of two) 32-bit SBC, which manages all video-processing, posture and motion control as well as CAN and wireless communications. The operator controls the entire system from an off-board (laptop) controller, which is in constant wireless communication with the robot train in the pipe. The sensor modules collect data and forward it to the robot operator computer (via the CAN-wireless communications chain), who then transfers it to a dedicated NDE data-storage and post-processing computer for further (real-time or off-line) analysis. The prototype robot system was built and tested indoors and outdoors, outfitted with a Remote-Field Eddy Current (RFEC) sensor integrated as its main NDE sensor modality. An angled launcher, allowing for live launching and retrieval, was also built to suit custom angled launch-fittings from TDW. The prototype vehicle and launcher systems are shown. The complete system, including the in-pipe robot train, launcher, integrated NDE-sensor and real-time video and control console and NDE-data collection and -processing and real-time display, were demonstrated to all sponsors prior to proceeding into final field-trials--the individual components and setting for said acceptance demonstration are shown. The launcher-tube was also used to verify that the vehicle system is capable of operating in high-pressure environments, and is safely deployable using proper evacuating/purging techniques for operation in the po

Carnegie Mellon University

2008-09-30T23:59:59.000Z

110

Thermo-mechanical simulations in double-sided heat transfer power assemblies.  

E-Print Network [OSTI]

Thermo-mechanical simulations in double-sided heat transfer power assemblies. E. Woirgard; I. Favre In power assemblies, heat transfer due to the die self- heating is one of the most important point on time life assemblies. Heat has to be evacuated toward the base- plate not to weaken the solder joint under

Boyer, Edmond

111

Smart power monitoring utility system using wireless sensor networks : a project report submitted in partial fulfilment of the requirements for the degree of Master of Engineering in Electronics and Electrical Engineering.  

E-Print Network [OSTI]

??The design and development of a Wireless Sensor Networks based Smart Grid for home utility system for power utility has been presented in this thesis.… (more)

Gill, Satinder Pal Singh

2013-01-01T23:59:59.000Z

112

Microsoft PowerPoint - PaulGottliebTechTransfer  

Broader source: Energy.gov (indexed) [DOE]

Procurement Directors Procurement Directors Conference Paul Gottlieb Assistant General Counsel for Tech. Transfer & IP 202-586-3439 (fax 2805) Paul.Gottlieb@HQ.DOE.GOV * Lab Tech Transfer EPact 2001 * Other Transaction: Range Fuels * EM awards * BioEnergy Research Centers Laboratory Tech Transfer: Recent Developments: EPACT Sec. 1001 - Secretary to appoint TT Coordinator - Establish Tech Transfer Working group of labs - Tech Commercialization Fund: 0.9 % of applied energy R&D budget to be used to provide matching funds with private partners to promote promising technologies for commercial purposes - Annual Tech Transfer Execution Plan Appointment of the Coordinator * Dr. Raymond L. Orbach, Under Secretary for Science, appointed June 28, 2007 - (c) DUTIES OF THE COORDINATOR.-The Coordinator shall oversee-

113

Nonlinear State Space Model of a Hydraulic Wind Power Transfer Masoud Vaezi1  

E-Print Network [OSTI]

Nonlinear State Space Model of a Hydraulic Wind Power Transfer Masoud Vaezi1 , Majid Deldar1 1, IUPUI. Gearless hydraulic wind power systems are considered as nonlinear models because of some discrete nonlinear governing equations for the elements in the proposed hydraulic wind power configuration. Nonlinear

Zhou, Yaoqi

114

Video transmission over wireless networks  

E-Print Network [OSTI]

Compressed video bitstream transmissions over wireless networks are addressed in this work. We first consider error control and power allocation for transmitting wireless video over CDMA networks in conjunction with multiuser detection. We map a...

Zhao, Shengjie

2005-08-29T23:59:59.000Z

115

Technology transfer: solar power and distributed rural electrification  

Science Journals Connector (OSTI)

The research objective is to assess and transfer high efficiency multi-junction photovoltaic cell technology developed at the National Renewable Energy Lab to a start-up venture. The technology integrates a rooftop satellite-dish sized reflector that tracks and concentrates solar energy onto the target cell. There are still rural communities in the world where

Stephen W. Jordan; Tugrul U. Daim

2012-01-01T23:59:59.000Z

116

DOE Funds 15 New Projects to Develop Solar Power Storage and Heat Transfer  

Broader source: Energy.gov (indexed) [DOE]

Funds 15 New Projects to Develop Solar Power Storage and Heat Funds 15 New Projects to Develop Solar Power Storage and Heat Transfer Projects For Up to $67.6 Million DOE Funds 15 New Projects to Develop Solar Power Storage and Heat Transfer Projects For Up to $67.6 Million September 19, 2008 - 3:43pm Addthis WASHINGTON - U.S. Department of Energy (DOE) today announced selections for negotiations of award under the Funding Opportunity Announcement (FOA), Advanced Heat Transfer Fluids and Novel Thermal Storage Concepts for Concentrating Solar Power Generation. These 15 new projects, for up to approximately $67.6 million, will facilitate the development of lower-cost energy storage for concentrating solar power (CSP) technology. These projects support President Bush's Solar America Initiative, which aims to make solar energy cost-competitive with conventional forms of electricity

117

Sensors and Actuators B 102 (2004) 2734 A miniaturized low-power wireless remote environmental  

E-Print Network [OSTI]

-site monitoring of water pollution by heavy-metal ions. The system is composed of three parts: an electrochemical wireless remote environmental monitoring sys- tem. This system monitors water pollution of heavy-metal ions sensor module using microfabricated electrodes for detecting heavy-metal contamination in sample water

Kwak, Juhyoun

118

Flow and heat transfer in porous micro heat sink for thermal management of high power LEDs  

Science Journals Connector (OSTI)

A novel porous micro heat sink system is presented for thermal management of high power LEDs, which has high heat transport capability. The operational principle and heat transfer characteristics of porous micro heat sink are analyzed. Numerical model ... Keywords: Heat dissipation, High heat flux, High power LEDs, Porous media, Porous micro heat sink

Z. M. Wan; J. Liu; K. L. Su; X. H. Hu; S. S. M

2011-05-01T23:59:59.000Z

119

Off-resonance frequency operation for power transfer in a loosely coupled air core transformer  

DOE Patents [OSTI]

A power transmission system includes a loosely coupled air core transformer having a resonance frequency determined by a product of inductance and capacitance of a primary circuit including a primary coil. A secondary circuit is configured to have a substantially same product of inductance and capacitance. A back EMF generating device (e.g., a battery), which generates a back EMF with power transfer, is attached to the secondary circuit. Once the load power of the back EMF generating device exceeds a certain threshold level, which depends on the system parameters, the power transfer can be achieved at higher transfer efficiency if performed at an operating frequency less than the resonance frequency, which can be from 50% to 95% of the resonance frequency.

Scudiere, Matthew B

2012-11-13T23:59:59.000Z

120

A solid?state solar?powered heat transfer device  

Science Journals Connector (OSTI)

A solar?powered solid?state heat transferdevice capable of operating in either a refrigeration or a heat?pump mode is proposed. The device’s operation is based on the combined utilization of the photovoltaic and Peltier effects.

Milivoj Beli?; Joel I. Gersten

1979-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Wireless@Virginia Tech Telecommunications  

E-Print Network [OSTI]

Wireless@Virginia Tech SWIM VLSI for Telecommunications The Institute for Critical Technology a broad research framework for low power VLSI design. Broad knowledge and ample experience of Wireless@Virginia Tech in wireless system design is a distinctive advantage of the Center, which can be exploited for low

Beex, A. A. "Louis"

122

Microsoft Word - 20110321_LTI_PPM_Tetra Tech_Cost Effective Wireless Application in Power Generation Markets.docx  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

11/1483 11/1483 Cost-Effective Wireless Application in the Power Generation Market 21 March, 2011 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe on privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or

123

A (Smart) Real-time PMU-assisted Power Transfer Limitation Monitoring  

E-Print Network [OSTI]

A (Smart) Real-time PMU-assisted Power Transfer Limitation Monitoring and Enhancement System and Opportunities ATC Monitoring and Enhancement SystemsData issues · Real-time network model of 13,000-bus, 18168 braches · Real-time data · Verification of model and data #12;Model Validation & Correction Disturbance

124

A resonant load circuit to develop electrical power transfer of thermionic converters  

SciTech Connect (OSTI)

Low internal impedance of thermionic converters requires a low impedance load in the DC mode to obtain optimal power transfer. An internal resistance near 0.1 W for thermionic converters is common. According to the maximum power theorem [Desoer,1969], a similar magnitude for the resistance load must be fixed. Due to temperature changes, the internal plasma resistance and the resistance of the leads is modified [Houston,1959], for this reason, it is difficult to maintain maximum power transfer to the load. This paper presents a resonant load circuit for thermionic converters in the AC mode, to develop impedance coupling. The circuit employs an electrical transformer and positive feedback; by this way, oscillations are themselves maintained. It is used an electrical circuit model [Perez et al, 1997], to simulate the electrical behavior of the thermionic converter.

Perez, G.; Estrada, C.A.; Jimenez, A.E.

1998-07-01T23:59:59.000Z

125

Resource management in heterogeneous wireless sensor networks  

E-Print Network [OSTI]

A. , 2002: Joint scheduling and power control for wirelesstransmit power control while scheduling wireless nodes ina control packet which contains the scheduling information

Regini, Edoardo

2009-01-01T23:59:59.000Z

126

New Technique Provides Energy Wirelessly  

Science Journals Connector (OSTI)

Topics include a new technology for fast personal-area networks; an innovative antiphishing approach; a wireless system for powering and charging devices; and a wall that users could touch to control lights, appliances, and other items in a room. Keywords: IEEE 802.15.3c-2009, wireless personal area networks, WPANs, phishing, antiphishing, Phishgig, WiTricity, wireless power, MIT, Living Wall, conductive paint, sensors

Linda Dailey Paulson

2010-04-01T23:59:59.000Z

127

Reducing Power Consumption in Wireless Sensor Networks Using a Novel Approach to Data Aggregation  

Science Journals Connector (OSTI)

......low duty cycle operation. These protocols...TinyOS operating system [15]. B-MAC...activity using a low power listening. If...query processing system for sensor networks...intersection. In: Handbook of Multisensor...Versatile low power media access for...Networked Sensor Systems, November 3-5......

Silvio Croce; Francesco Marcelloni; Massimo Vecchio

2008-03-01T23:59:59.000Z

128

Reducing Power Consumption in Wireless Sensor Networks Using a Novel Approach to Data Aggregation  

Science Journals Connector (OSTI)

......Each sensor node is a tiny device composed of three basic units...activity using a low power listening. If the channel is not active...and transmitting messages, listening the radio channel and sleeping...channel adopts a low-power listening (LPL) approach. Figure-2......

Silvio Croce; Francesco Marcelloni; Massimo Vecchio

2008-03-01T23:59:59.000Z

129

An ultra low power ADC for wireless micro-sensor applications  

E-Print Network [OSTI]

Autonomous micro-sensor nodes rely on low-power circuits to enable energy harvesting as a means of sustaining long-term, maintenance free operation. This work pursues the design of an ultra low-power analog-to-digital ...

Verma, Naveen

2005-01-01T23:59:59.000Z

130

POWER EFFICIENT H.263 VIDEO TRANSMISSION OVER WIRELESS CHANNELS Xiaoan Lu, Yao Wang, and Elza Erkip  

E-Print Network [OSTI]

the power consumption of the H.263 encoder, the Reed-Solomon chan- nel encoder and the transmitter] and the Reed-Solomon (RS) channel codec. The channel is characterized by a two-state Markov model [6]. We focus methodology also H.263 Video Encoder Channel Encoder Markov Channel Channel Decoder H.263 Video Decoder INTRA

Erkip, Elza

131

A MAC Protocol for Wireless Ad Hoc Networks with Power Control  

E-Print Network [OSTI]

is an important factor in ad hoc networks. One way to conserve energy supported by the standard [1] is the power-hop neighborhood. Through many simulations we show that our algorithm outperforms the IEEE 802.11 standard, also IEEE 802.11 [1] has become the standard for Wire- less LAN's both in infrastructure and in ad hoc mode

132

Challenges on Low-Power Platform Design for Real-World Wireless Sensing Applications  

E-Print Network [OSTI]

Center for Embedded Computer Systems University of California, Irvine, CA 92697-2625, USA Abstract-- Real to miniaturize. The battery, as the primary power supply, limits not only the energy capacity but also batteries, solar panels, and energy storage. The platform as a whole will operate even more efficiently

Chou, Pai H.

133

An Architecture for Power-Saving Communications in a Wireless Mobile Ad Hoc Network  

E-Print Network [OSTI]

of energy-conserving communications. In comparison, existing protocols only exploit location information of mobile hosts to achieve the goal of energy conservation. The architecture addresses the power- saving. In comparison, existing protocols only exploit location information in limited layers. Similar to cellular

Tseng, Yu-Chee

134

Optimal Power Management in Wireless Control Systems Konstantinos Gatsis, Alejandro Ribeiro and George J. Pappas  

E-Print Network [OSTI]

but a separation principle for finite horizon costs can be established [11], and optimal plant and transmission the sensor. The power allocated to these transmissions determines the probability of successful reception of transmissions protected with capacity achieving codes, conventional event-triggered policies are recovered

Pappas, George J.

135

UNIVERSITY OF CALIFORNIA, SAN DIEGO A Low-Cost, Low-Power, Wireless Occupancy Sensing Platform  

E-Print Network [OSTI]

of smart buildings is energy conservation. The US Department of Energy estimates that buildings account . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.4 Power Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.5 Future Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 ii #12;LIST OF FIGURES Figure 1: End use of electricity in US buildings. Source: US DOE [4

136

Numerical simulation of heat transfer performance of an air-cooled steam condenser in a thermal power plant  

Science Journals Connector (OSTI)

Numerical simulation of the thermal-flow characteristics and heat transfer performance is made of an air-cooled steam condenser (ACSC) in a thermal power plant by considering the effects of ambient wind speed and...

Xiufeng Gao; Chengwei Zhang; Jinjia Wei; Bo Yu

2009-09-01T23:59:59.000Z

137

Vibration energy harvesting is an attractive technique for the potential powering of wireless sensors and low power devices. While the technique can be employed to  

E-Print Network [OSTI]

source which will enable the sensors to be employed in autonomous condition monitoring and wireless data required for these devices and ability to be surreptitiously deployed in hostile and inaccessible

Fisher, Frank

138

CCEC Seminar Wireless Sensors for SemiconductorWireless Sensors for Semiconductor  

E-Print Network [OSTI]

CCEC Seminar Wireless Sensors for SemiconductorWireless Sensors for Semiconductor Manufacturing perhaps. In this talk, we describe our efforts in developing a new class of wireless sensors for use in semiconductor manufacturing. These sensors are fully self-contained with on board power, communications

Akhmedov, Azer

139

Phenylnaphthalene Derivatives as Heat Transfer Fluids for Concentrating Solar Power: Loop Experiments and Final Report  

SciTech Connect (OSTI)

ORNL and subcontractor Cool Energy completed an investigation of higher-temperature, organic thermal fluids for solar thermal applications. Although static thermal tests showed promising results for 1-phenylnaphthalene, loop testing at temperatures to 450 C showed that the material isomerized at a slow rate. In a loop with a temperature high enough to drive the isomerization, the higher melting point byproducts tended to condense onto cooler surfaces. So, as experienced in loop operation, eventually the internal channels of cooler components such as the waste heat rejection exchanger may become coated or clogged and loop performance will decrease. Thus, pure 1-phenylnaphthalene does not appear to be a fluid that would have a sufficiently long lifetime (years to decades) to be used in a loop at the increased temperatures of interest. Hence a decision was made not to test the ORNL fluid in the loop at Cool Energy Inc. Instead, Cool Energy tested and modeled power conversion from a moderate-temperature solar loop using coupled Stirling engines. Cool Energy analyzed data collected on third and fourth generation SolarHeart Stirling engines operating on a rooftop solar field with a lower temperature (Marlotherm) heat transfer fluid. The operating efficiencies of the Stirling engines were determined at multiple, typical solar conditions, based on data from actual cycle operation. Results highlighted the advantages of inherent thermal energy storage in the power conversion system.

McFarlane, Joanna [ORNL; Bell, Jason R [ORNL; Felde, David K [ORNL; Joseph III, Robert Anthony [ORNL; Qualls, A L [ORNL; Weaver, Samuel P [ORNL

2013-02-01T23:59:59.000Z

140

IMPROVING THE ENERGY EFFICIENCY OF A MID-SIZE POWER PLANT BY REDUCTION IN AUXILIARY POWER AND IMPROVED HEAT TRANSFER.  

E-Print Network [OSTI]

??This study incorporates the potential use of Variable Frequency Drives on various motors as well as areas of improved heat transfer in an older, mid-sized… (more)

Green, Jeffrey Andrew

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

X-by-wireless: a novel approach to vehicle control  

E-Print Network [OSTI]

As the cost of wireless devices approaches zero, it becomes more feasible to replace wires with wireless communication. Vehicle wiring harnesses are traditionally wired to communicate both power and information simultaneously, resulting in separate...

Hoelscher, David Louis

2009-05-15T23:59:59.000Z

142

Wireless sensor networks and environmental monitoring applications  

E-Print Network [OSTI]

Radio: 4kbps, 180m Sensors: Light and accelerometer Energy: Solar powered Golem and deputy dust 16mm3-aided medicine Data processing in wireless sensor networks Facilities: Cluster of 16 computers 30 ultra low power wireless sensors Lego robotics lab (10 Mindstorms kits) More to come... (mobile robot, Mindstorms NXT kits

Le Borgne, Yann-Aël

143

Developing knowledge transfer-oriented ethical cultures in US government agencies regulating the commercial use of nuclear power  

Science Journals Connector (OSTI)

Knowledge management is the practice of capturing critical information and making the right information available to the right people at the right time. Such practices are critical for US government agencies that must make ethical and safety-oriented decisions in regulating commercial operations and waste disposal in the nuclear power industry. The development of knowledge management and knowledge transfer practices related to ethical decision making is critical in preventing the loss of skills, experience, routines and capabilities when employees with expertise on the ethical issues of nuclear power regulation leave their respective organisations. This article uses applied research to explore the required measures for developing knowledge transfer-oriented ethical cultures in government organisations. The goal of this research is to develop solutions that can influence the international world of practice in the areas of knowledge transfer and ethical leadership development.

Darrell Norman Burrell; Emad Rahim; Krista Juris; Zara Sette

2010-01-01T23:59:59.000Z

144

A Similarity Analysis for Heat Transfer in Newtonian and Power Law Fluids Using the Instantaneous Wall Shear Stress  

E-Print Network [OSTI]

This paper presents a technique that collapses existing experimental data of heat transfer in pipe flow of Newtonian and power law fluids into a single master curve. It also discusses the theoretical basis of heat, mass and momentum analogies and the implications of the present analysis to visualisations of turbulence.

Trinh, K T; Kiaka, N K

2010-01-01T23:59:59.000Z

145

Heat transfer to non-Newtonian power-law fluid past a continuously moving porous flat plate with heat flux  

Science Journals Connector (OSTI)

The analysis of heat transfer to the non-Newtonian power-law fluid flow past a continuously moving flat porous plate in presence of suction/injection with heat flux has been presented. We have obtained...n...=1 a...

B. P. Jadhav; B. B. Waghmode

1990-01-01T23:59:59.000Z

146

Design and Characterization of a Novel Battery-less, Solar Powered Wireless Tag for Enhanced-Range  

E-Print Network [OSTI]

with continuously powering an RFID tag was the scarce output power. The palm-sized solar cell array that was stacked of the 2 numbers showed that while it was not possible to continuously power the tag with the solar cell.1. The power source of the tag comprised of an array of Solar Cells configured to give out an open

Tentzeris, Manos

147

Peak Power Bi-directional Transfer From High Speed Flywheel to Electrical Regulated Bus Voltage System  

E-Print Network [OSTI]

were performed to determine the energy transfer capabilities of a flywheel coupled high speed permanent magnet synchronous machine through the proposed system's energy storage tank. Results are presented

Szabados, Barna

148

3484 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 12, NO. 7, JULY 2013 Joint Back-Pressure Power Control and Interference  

E-Print Network [OSTI]

Gopalakrishnan and Nicholas D. Sidiropoulos, Fellow, IEEE Abstract--Back-Pressure Power Control (BPPC) is a cross control and interference cancellation are tightly coupled. This leads to a joint Back- Pressure Power, back- pressure, power control, interference cancellation, NP-hard, con- vex approximation. I

Sidiropoulos, Nikolaos D.

149

Brief Contributions________________________________________________________________________________ Topology Control of Ad Hoc Wireless  

E-Print Network [OSTI]

________________________________________________________________________________ Topology Control of Ad Hoc Wireless Networks for Energy Efficiency Maggie X. Cheng, Member, IEEE, Mihaela, Yinfeng Xu, and Ding-Zhu Du Abstract--In ad hoc wireless networks, to compute the transmission power-complete problem. In this paper, we consider the approximated solutions for the MENC problem in ad hoc wireless

Wang, Lusheng

150

Static Security Analysis of the Regional Power Grid Based on the Busbar Automatic Transfer Switch  

Science Journals Connector (OSTI)

In order to solve the inapplicability of the transmission grid N-1 criterion in the regional power grid which is running with a large number ... BATS device into use after the regional power grid failure, we come...

Liang Zhao; Jian Zhang; He Zhu…

2014-01-01T23:59:59.000Z

151

Antiradical Power of Carotenoids and Vitamin E: Testing the Hydrogen Atom Transfer Mechanism  

Science Journals Connector (OSTI)

Solvent effects were included, using the polarizable continuum model (PCM),(46, 47) with water and benzene acting as the solvents for polar and nonpolar environments, respectively. ... Antiradical Power of CAR ... The electrodonating (?–) and electroaccepting (?+) powers of the most relevant ... ...

Ana Martínez; Andrés Barbosa

2008-12-04T23:59:59.000Z

152

Determinationof the power transfer capacityof a UPFCwith considerationof the system and  

E-Print Network [OSTI]

transmission system (FACTS) devices provide new altematives in expanding the power transmission capacity inverters are interconnected via the DC link provided by a DC storage capacitor. The real power can flow reactive power at its own AC terminals. The series inverter injects onto the line voltage an AC voltage Vr

Qu, Zhihua

153

Design of a Novel, Battery-less, Solar Powered Wireless Tag for Enhanced Range Remote Tracking Applications  

E-Print Network [OSTI]

was the scarce output power available from sunlight. The palm-sized solar cell array was capable of generating to continuously power the tag with the solar cell array, in a relatively short period of time enough solar energy of Solar Cells configured to give out an open circuit voltage and current above a certain minimum value

Tentzeris, Manos

154

Secure wireless communication platform for EV-to-Grid research  

Science Journals Connector (OSTI)

"Vehicle to Grid" power or V2G will be a new green energy scheme that allows electricity to flow from Electric Vehicles (EVs) to power lines. The objective of this paper is to design and develop a secure wireless communication platform for V2G research, ... Keywords: authentication protocol, electric vehicle, power grid, secure wireless communication

Huaqun Guo; Fan Yu; W. C. Wong; Vivy Suhendra; Y. D. Wu

2010-06-01T23:59:59.000Z

155

Non-uniform heat generation effect on heat transfer of a non-Newtonian power-law fluid over a non-linearly stretching sheet  

Science Journals Connector (OSTI)

The effects of non-uniform heat generation/absorption and viscous dissipation on heat transfer of a non-Newtonian power-law fluid on a non-linearly stretching surface have ... law index parameter, the Prandtl num...

Mostafa A. A. Mahmoud; Ahmed M. Megahed

2012-06-01T23:59:59.000Z

156

Using Solid Particles as Heat Transfer Fluid for use in Concentrating Solar Power (CSP) Plants  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23–25, 2013 near Phoenix, Arizona.

157

On-Demand Based Wireless Resources Trading for Green Communications  

E-Print Network [OSTI]

The purpose of Green Communications is to reduce the energy consumption of the communication system as much as possible without compromising the quality of service (QoS) for users. An effective approach for Green Wireless Communications is On-Demand strategy, which scales power consumption with the volume and location of user demand. Applying the On-Demand Communications model, we propose a novel scheme -- Wireless Resource Trading, which characterizes the trading relationship among different wireless resources for a given number of performance metrics. According to wireless resource trading relationship, different wireless resources can be consumed for the same set of performance metrics. Therefore, to minimize the energy consumption for given performance metrics, we can trade the other type of wireless resources for the energy resource under the demanded performance metrics. Based on the wireless resource trading relationship, we derive the optimal energy-bandwidth and energy-time wireless resource trading ...

Cheng, Wenchi; Zhang, Hailin; Wang, Qiang

2011-01-01T23:59:59.000Z

158

Wireless Network Control of Interacting Rydberg Atoms  

Science Journals Connector (OSTI)

We identify a relation between the dynamics of ultracold Rydberg gases in which atoms experience a strong dipole blockade and spontaneous emission, and a stochastic process that models certain wireless random-access networks. We then transfer insights and techniques initially developed for these wireless networks to the realm of Rydberg gases, and explain how the Rydberg gas can be driven into crystal formations using our understanding of wireless networks. Finally, we propose a method to determine Rabi frequencies (laser intensities) such that particles in the Rydberg gas are excited with specified target excitation probabilities, providing control over mixed-state populations.

Jaron Sanders; Rick van Bijnen; Edgar Vredenbregt; Servaas Kokkelmans

2014-04-22T23:59:59.000Z

159

Critical evaluation of heat transfer coefficients applicable to solar chimney power plant collectors  

Science Journals Connector (OSTI)

A solar chimney power plant consists of a translucent collector ... and guides it into the base of a chimney at its centre. The buoyant air rises in the chimney, and electricity is generated through one or ... tu...

M. A. dos S. Bernardes; T. W. von Backström…

2009-01-01T23:59:59.000Z

160

Review: Wireless Internet Handbook  

Science Journals Connector (OSTI)

......Review: Wireless Internet Handbook Reviewed by Harry Agius Wireless Internet Handbook Borko Furht, Mohammad Ilyas...the book. In fairness it does improve after the fifth chapter...Wireless Internet Handbook Borko Furht, Mohammad Ilyas......

Harry Agius

2004-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Microwave Metamaterial Applications using Complementary Split Ring Resonators and High Gain Rectifying Reflectarray for Wireless Power Transmission  

E-Print Network [OSTI]

. ..................................................................................... 50 Fig. 28. (a) Half-wave rectifier with capacitor and (b) its waveforms ............................ 52 Fig. 29. Diode current-voltage characteristic curves with the incident fundamental and diode junction voltage waveforms... and 1930?s. In the 1950?s, the development of high power and efficiency micrwave tube by Raytheon Company [18] opened the modern WPT era. The first rectenna was invented in the 1960?s by combining a half-wave dipole antenna and a single diode by W...

Ahn, Chi Hyung

2011-10-21T23:59:59.000Z

162

Maintaining Sensor Networks Perpetually Via Wireless Recharging Mobile Vehicles  

E-Print Network [OSTI]

. For example, in a solar harvesting system, statistics has shown that the differences of energy generating@cityu.edu.hk, linxl@mail.sysu.edu.cn Abstract--The emerging wireless energy transfer technology based on magnetic and perpetual energy source to sensors. In this paper we study the use of minimum number of wireless charging

Liang, Weifa

163

A review of wireless and PLC propagation channel characteristics for smart grid environments  

Science Journals Connector (OSTI)

Wireless, power line communication (PLC), fiber optic, Ethernet, and so forth are among the communication technologies on which smart grid communication infrastructure is envisioned to be built. Among these, wireless and PLC-based solutions are attractive ...

Sabih Güzelgöz; Hüseyin Arslan; Arif Islam; Alexander Domijan

2011-01-01T23:59:59.000Z

164

Sensors and nuclear power. Report by the Technology Transfer Sensors Task Team  

SciTech Connect (OSTI)

The existing sensor systems for the basic process parameters in nuclear power plant operation have limitations with respect to accuracy, ease of maintenance and signal processing. These limitations comprise the economy of nuclear power generation. To reduce the costs and improve performance of nuclear power plant fabrication, operation, maintenance and repair we need to advance the sensor technology being applied in the nuclear industry. The economic viability and public acceptance of nuclear power will depend on how well we direct and apply technological advances to the industry. This report was prepared by a team with members representing a wide range of the nuclear industry embracing the university programs, national laboratories, architect engineers and reactor manufacturers. An intensive effort was made to survey current sensor technology, evaluate future trends and determine development needs. This included literature surveys, visits with utilities, universities, laboratories and organizations outside the nuclear industry. Several conferences were attended to take advantage of the access to experts in selected topics and to obtain opinions. Numerous telephone contacts and exchanges by mail supplemented the above efforts. Finally, the broad technical depth of the team members provided the basis for the stimulating working sessions during which this report was organized and drafted.

Not Available

1985-06-01T23:59:59.000Z

165

Effect of collisional heat transfer in ICRF power modulation experiment on ASDEX Upgrade  

SciTech Connect (OSTI)

ICRF (ion cyclotron range of frequencies) heating experiments were performed in D-H plasmas at various H concentrations on ASDEX Upgrade. The rf power was modulated to measure the electron power deposition profile from electron temperature modulation. To minimize the contribution from indirect collisional heating and the effect of radial transport, the rf power was modulated at 50 Hz. However, peaking of electron temperature modulation was still observed around the hydrogen cyclotron resonance indicating collisional heating contribution. Time dependent simulation of the hydrogen distribution function was performed for the discharges, using the full-wave code AORSA (E.F. Jaeger, et al., Phys. Plasmas, Vol. 8, page 1573 (2001)) coupled to the Fokker-Planck code CQL3D (R.W. Harvey, et al., Proc. IAEA (1992)). In the present experimental conditions, it was found that modulation of the collisional heating was comparable to that of direct wave damping. Impact of radial transport was also analyzed and found to appreciably smear out the modulation profile and reduce the phase delay.

Tsujii, N. [Max-Planck-Institut für Plasmaphysik, Garching (Germany); University of Tokyo, Kashiwa (Japan); D'Inca, R.; Bilato, R.; Bobkov, Vl. V.; Brambilla, M.; Schneider, P. [Max-Planck-Institut für Plasmaphysik, Garching (Germany); Noterdaeme, J.-M. [Max-Planck-Institut für Plasmaphysik, Garching, Germany and Universiteit Gent, Gent (Belgium); Van Eester, D.; Lerche, E. A. [JET-EFDA Culham Science Center, Abingdon (United Kingdom); LPP-ERM/KMS, Association EURATOM - Belgian State, Brussels (Belgium); Harvey, R. W. [CompX, Del Mar (United States); Jaeger, E. F. [XCEL Engineering, Oak Ridge (United States); Collaboration: ASDEX Upgrade Team

2014-02-12T23:59:59.000Z

166

PowerBeam Inc | Open Energy Information  

Open Energy Info (EERE)

California Zip: CA 94085 Product: PowerBeam holds the patent to a power transmission technology that produces wireless electricity. Coordinates: 32.780338, -96.547405 Show...

167

Development of Molten-Salt Heat Transfer Fluid Technology for Parabolic Trough Solar Power Plants - Public Final Technical Report  

SciTech Connect (OSTI)

Executive Summary This Final Report for the "Development of Molten-Salt Heat Transfer Fluid (HTF) Technology for Parabolic Trough Solar Power Plants” describes the overall project accomplishments, results and conclusions. Phase 1 analyzed the feasibility, cost and performance of a parabolic trough solar power plant with a molten salt heat transfer fluid (HTF); researched and/or developed feasible component options, detailed cost estimates and workable operating procedures; and developed hourly performance models. As a result, a molten salt plant with 6 hours of storage was shown to reduce Thermal Energy Storage (TES) cost by 43.2%, solar field cost by 14.8%, and levelized cost of energy (LCOE) by 9.8% - 14.5% relative to a similar state-of-the-art baseline plant. The LCOE savings range met the project’s Go/No Go criteria of 10% LCOE reduction. Another primary focus of Phase 1 and 2 was risk mitigation. The large risk areas associated with a molten salt parabolic trough plant were addressed in both Phases, such as; HTF freeze prevention and recovery, collector components and piping connections, and complex component interactions. Phase 2 analyzed in more detail the technical and economic feasibility of a 140 MWe,gross molten-salt CSP plant with 6 hours of TES. Phase 2 accomplishments included developing technical solutions to the above mentioned risk areas, such as freeze protection/recovery, corrosion effects of applicable molten salts, collector design improvements for molten salt, and developing plant operating strategies for maximized plant performance and freeze risk mitigation. Phase 2 accomplishments also included developing and thoroughly analyzing a molten salt, Parabolic Trough power plant performance model, in order to achieve the project cost and performance targets. The plant performance model and an extensive basic Engineering, Procurement, and Construction (EPC) quote were used to calculate a real levelized cost of energy (LCOE) of 11.50¢/kWhe , which achieved the Phase 2 Go/No Go target of less than 0.12¢/kWhe. Abengoa Solar has high confidence that the primary risk areas have been addressed in the project and a commercial plant utilizing molten salt is economically and technically feasible. The strong results from the Phase 1 and 2 research, testing, and analyses, summarized in this report, led Abengoa Solar to recommend that the project proceed to Phase 3. However, a commercially viable collector interconnection was not fully validated by the end of Phase 2, combined with the uncertainty in the federal budget, forced the DOE and Abengoa Solar to close the project. Thus the resources required to construct and operate a molten salt pilot plant will be solely supplied by Abengoa Solar.

Grogan, Dylan C. P.

2013-08-15T23:59:59.000Z

168

A Low-Power Mobile Sensing Architecture  

E-Print Network [OSTI]

airborne wireless sensor network of micro-air vehicles. Inairborne wireless sensor network of micro-air vehicles mayplanning for micro-solar power sensor networks. In IPSN ’08:

Dutta, Prabal

2009-01-01T23:59:59.000Z

169

Not all wireless sensor networks are created equal: A comparative study on tunnels  

Science Journals Connector (OSTI)

Wireless sensor networks (WSNs) are envisioned for a number of application scenarios. Nevertheless, the few in-the-field experiences typically focus on the features of a specific system, and rarely report about the characteristics of the target environment, ... Keywords: Wireless sensor networks, link quality, low-power wireless communications, network topologies, topology characterization, tunnel environment

Luca Mottola; Gian Pietro Picco; Matteo Ceriotti; ?tefan Gun?; Amy L. Murphy

2010-08-01T23:59:59.000Z

170

AN ASYMPTOTICALLY OPTIMAL APPROACH TO THE DISTRIBUTED ADAPTIVE TRANSMIT BEAMFORMING IN WIRELESS SENSOR NETWORKS  

E-Print Network [OSTI]

the plants on a field. As the transmission power of each single node is too weak to reach the distant]. A solution to synchronize carrier signals of distributed wireless nodes is virtual/cooperative MIMO for wireless sen- sor networks [1, 2, 3]. In virtual MIMO for wireless sensor networks, single antenna nodes

Beigl, Michael

171

Coordination of Transmission Line Transfer Capabilities  

E-Print Network [OSTI]

Coordination of Transmission Line Transfer Capabilities Final Project Report Power Systems since 1996 PSERC #12;Power Systems Engineering Research Center Coordination of Transmission Line Summary The maximum power that can be transferred over any transmission line, called the transfer capacity

172

Sink repositioning for enhanced performance in wireless sensor networks  

Science Journals Connector (OSTI)

Most of the energy aware routing approaches for unattended wireless sensor networks pursue multi-hop paths in order to minimize the total transmission power. Since almost in all sensor networks data are routed towards a single sink (gateway), hops close ... Keywords: Energy awareness, Real-time data delivery, Sink relocation, Timeliness, Wireless sensor networks

Kemal Akkaya; Mohamed Younis; Meenakshi Bangad

2005-11-01T23:59:59.000Z

173

Solar-aware Routing in Wireless Sensor Networks  

E-Print Network [OSTI]

Solar-aware Routing in Wireless Sensor Networks Thiemo Voigt, Hartmut Ritter and Jochen Schiller energy sources such as solar power may provide unlimited energy resources to a changing subset these nodes is appealing. In this paper, we present solar-aware routing, a rout- ing protocol for wireless

174

Prototype system brings advantages of wireless technology to secure  

National Nuclear Security Administration (NNSA)

Prototype system brings advantages of wireless technology to secure Prototype system brings advantages of wireless technology to secure environment | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Prototype system brings advantages of wireless technology ... Prototype system brings advantages of wireless technology to secure environment

175

An Integrated Rectifier/Regulator for a Wireless Battery Charging System.  

E-Print Network [OSTI]

?? A wirelessly powered charging system for use in implanted biomedical applications is proposed. A sinusoidal ac voltage received through the magnetic inductive link, which… (more)

Lin, Feng-Hsu

2009-01-01T23:59:59.000Z

176

Software-related Energy Footprint of a Wireless Broadband Module  

E-Print Network [OSTI]

on the power consumption. This opens up for potential energy savings by creating better ap- plications Keywords 3G, Energy footprint, Power consumption, Wireless broad- band 1. INTRODUCTION The battery lifetime on performance with limited battery power, we need to employ every possible power saving mea- sure, including

177

Cell Breathing in Wireless LANs: Algorithms and Evaluation  

E-Print Network [OSTI]

, as a load balancing mechanism to handle client congestion in a wireless LAN. We develop power management the transmission power of beacon packets and does not change the transmission power of data packets to avoid used fixed power scheme and performs at par with sophisticated load balancing schemes that require

Qiu, Lili

178

SunShot Initiative: Heliostat System with Wireless Closed-Loop Control  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Heliostat System with Wireless Heliostat System with Wireless Closed-Loop Control to someone by E-mail Share SunShot Initiative: Heliostat System with Wireless Closed-Loop Control on Facebook Tweet about SunShot Initiative: Heliostat System with Wireless Closed-Loop Control on Twitter Bookmark SunShot Initiative: Heliostat System with Wireless Closed-Loop Control on Google Bookmark SunShot Initiative: Heliostat System with Wireless Closed-Loop Control on Delicious Rank SunShot Initiative: Heliostat System with Wireless Closed-Loop Control on Digg Find More places to share SunShot Initiative: Heliostat System with Wireless Closed-Loop Control on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload

179

Implementing a green bicycle alliance using a wireless sensor network  

Science Journals Connector (OSTI)

This study used the wireless sensor network (WSN) technique to design a bike device module, a bike path establishment module and a cloud service module. These three modules were used to address issues related to cycling activities, including green power ...

Haw-Yun Shin; Chung-Ming Own

2014-08-01T23:59:59.000Z

180

The Energy Cost Model of Clustering Wireless Sensor Network Architecture  

Science Journals Connector (OSTI)

The advent of technology has facilitated the development of small, low power devices that combine programmable general purpose computing with multiple sensing and wireless communication capability. This article d...

Yanjun Zhang; Xiaoyun Teng; Hongyi Yu; Hanying Hu

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Abstract--This paper presents a method for wireless powering of multiple electronic devices placed in an over-moded 2.2-GHz  

E-Print Network [OSTI]

. Applications include personal electronics, powering of toys and powering of products in storage crates. Index-7], and far-field scavenging of low power densities [8-12]. The applications have ranged from powering solar of inductors, have been commercialized for some time and are still under consideration by a number of companies

Popovic, Zoya

182

Demonstration of wide-angle beam steering optics in wavelength-division-multiplexing indoor optical wireless LAN with dedicated CMOS imager  

Science Journals Connector (OSTI)

We are developing a new indoor optical wireless LAN system, in which dedicated CMOS imagers are utilized to offer location-aware visually-intuitive wireless communications, wavelength- or space-division-multiplexing high-speed data transfer, and compact ... Keywords: CMOS imager, beam steering, free-space optical communications, indoor optical wireless LAN, wavelength multiplexing

Keiichiro Kagawa; Jun Tanida

2008-11-01T23:59:59.000Z

183

Seven Deadliest Wireless Technologies Attacks  

Science Journals Connector (OSTI)

Do you need to keep up with the latest hacks, attacks, and exploits affecting wireless technology? Then you need Seven Deadliest Wireless Technologies Attacks. This book pinpoints the most dangerous hacks and exploits specific to wireless technologies, ...

Brad Haines

2010-03-01T23:59:59.000Z

184

Wireless Link Scheduling under Physical Interference Model  

E-Print Network [OSTI]

approximation algorithms for link scheduling with or without power control. Index Terms--Link schedulingWireless Link Scheduling under Physical Interference Model Peng-Jun Wan, Ophir Frieder, Xiaohua Jia: jia@cs.cityu.edu.hk, csfyao@cityu.edu.hk Abstract--Link scheduling is a fundamental problem in multi

Jia, Xiaohua

185

A Virtual Infrastructure for Wireless Sensor Networks  

E-Print Network [OSTI]

of microelectromechanical systems (MEMS), miniaturized low-power devices that integrate sensing, special-purpose computing, and wireless communications 107 Handbook of Sensor Networks: Algorithms and Architectures, Edited by I of their operating environ- ment (anonymity of individual sensors, limited energy budget, and a possibly hostile

Stojmenovic, Ivan

186

Intelligent stale-frame discards for real-time video streaming over wireless ad hoc networks  

Science Journals Connector (OSTI)

This paper presents intelligent early packet discards (I-EPD) for real-time video streaming over amultihop wireless ad hoc network. In a multihop wireless ad hoc network, the quality of transferring real-time video streams could be seriously degraded, ...

Tsang-Ling Sheu; Yung-Shih Chi

2009-01-01T23:59:59.000Z

187

Impact of Mobile Transmitter Sources on Radio Frequency Wireless Energy Harvesting  

E-Print Network [OSTI]

1 Impact of Mobile Transmitter Sources on Radio Frequency Wireless Energy Harvesting Antonio Organization, Tata Consultancy Services, India. Abstract--Wireless energy harvesting sensor networks consti battery resource, but are able to re-charge themselves through directed electromagnetic energy transfer

Sanyal, Sugata

188

Design and Implementation an Energy-Aware Routing Mechanism for Solar Wireless Sensor Networks  

Science Journals Connector (OSTI)

Due to the thriving development of wireless sensor networks (WSNs) and solar power generation technology, coupled with the continuous progress of the semiconductor industry, solar cell photoelectrical conversion efficiency has increased accordingly, ... Keywords: Wireless sensor networks, solar power, energy-aware, routing

Hung-Chi Chu; Wei-Tsung Siao; Wei-Tai Wu; Sheng-Chih Huang

2011-09-01T23:59:59.000Z

189

An Overview of strategic measures to assess workforce needs and ensure technology transfer to meet current and future nuclear power operations  

SciTech Connect (OSTI)

Between 1956 and 1989, the number of operating commercial nuclear power plants in the United States increased from none to 109. With the exception of a few plants that were still in final construction, no new nuclear power plants were ordered in the United States as the new millennium began. In 2005, the federal government pronounced the need for new electric power generating systems during the first quarter of the 21. century. The need comes from a desire to curb our reliance on fossil fuels, as well as to provide for a cleaner environment. One of those fuel systems noted was nuclear energy. Given the time between the last active period of nuclear power plant development and construction, there is a need to supply a talented and well-prepared workforce to operate the new plants. It will also be necessary to assess the needs of our current fleet of operating nuclear power plants, of which many are in the process of re-licensing, yet also facing an aging plant workforce. This paper will review and discuss measures to assess diverse workforce needs and technology transfer to meet current licensing requirements as that of future nuclear power plant development in the United States. (authors)

Vincenti, J.R. [acuri.net, 1344 Curtin Street, State College, PA (United States); Stigers, R.A. [Senior Health Physicist-Radwaste, PPL Susquehanna, Berwick, PA (United States)

2007-07-01T23:59:59.000Z

190

Flexible network wireless transceiver and flexible network telemetry transceiver  

DOE Patents [OSTI]

A transceiver for facilitating two-way wireless communication between a baseband application and other nodes in a wireless network, wherein the transceiver provides baseband communication networking and necessary configuration and control functions along with transmitter, receiver, and antenna functions to enable the wireless communication. More specifically, the transceiver provides a long-range wireless duplex communication node or channel between the baseband application, which is associated with a mobile or fixed space, air, water, or ground vehicle or other platform, and other nodes in the wireless network or grid. The transceiver broadly comprises a communication processor; a flexible telemetry transceiver including a receiver and a transmitter; a power conversion and regulation mechanism; a diplexer; and a phased array antenna system, wherein these various components and certain subcomponents thereof may be separately enclosed and distributable relative to the other components and subcomponents.

Brown, Kenneth D. (Grain Valley, MO)

2008-08-05T23:59:59.000Z

191

Investigation of geothermal power plant performance using sequestered carbon dioxide as a heat transfer or working fluid.  

E-Print Network [OSTI]

??This study investigates the potential for combining carbon dioxide (CO2) sequestration with geothermal power production in areas with low geothermal resource temperatures. Using sequestered CO2… (more)

Janke, Brian D.

2011-01-01T23:59:59.000Z

192

OPTIMAL EFFICIENCY-POWER TRADEOFF FOR AN AIR MOTOR/COMPRESSOR WITH VOLUME VARYING HEAT TRANSFER CAPABILITY  

E-Print Network [OSTI]

of air. These results could ben- efit applications such as compressed air energy storage where both high and expansion is both energy efficient and power-dense. An ex- ample would be compressed air energy storage. One density of compressed air storage (about 20 times greater than hydraulic accumulators), and the high power

Li, Perry Y.

193

Performance model and annual yield comparison of parabolic-trough solar thermal power plants with either nitrogen or synthetic oil as heat transfer fluid  

Science Journals Connector (OSTI)

Abstract The majority of commercial parabolic-trough plants in the world operate with synthetic oil as heat transfer fluid in the solar field. However, the synthetic oils that are available at affordable cost present some challenges such as their flammability, environmental toxicity and a temperature limitation of around 400 °C. As alternative, this work proposes the use of pressurized nitrogen as heat transfer fluid. In order to analyze the feasibility of this technology, a comparison between a plant with nitrogen and a conventional plant with synthetic oil has been carried out. In both cases, 50 MWe parabolic-trough plants with 6 h of thermal storage are used as reference. A performance model including the solar field, the thermal storage system and the power block has been developed for each plant in the TRNSYS simulation software. This paper also describes the specifications, design and sizing of the solar field and explains the basic operation strategy applied in each model. Both annual simulations have been performed considering the same location, Almería (Spain), and meteorological data. In summary, the results show that similar net annual electricity productions can be attained for parabolic-trough plants with the same collection area using either nitrogen or synthetic oil as heat transfer fluid.

Mario Biencinto; Lourdes González; Eduardo Zarza; Luis E. Díez; Javier Muñoz-Antón

2014-01-01T23:59:59.000Z

194

Tripling the capacity of wireless communications using  

E-Print Network [OSTI]

channels of electric-®eld polarization for wireless communication. In order to make our statements more................................................................. Tripling the capacity of wireless .............................................................................................................................................. Wireless communications are a fundamental part of modern information infrastructure. But wireless bandwidth

195

A simulation model for the lifetime of wireless sensor networks  

E-Print Network [OSTI]

In this paper we present a model for the lifetime of wireless sensor networks. The model takes into consideration several parameters such as the total number of sensors, network size, percentage of sink nodes, location of sensors, the mobility of sensors, and power consumption. A definition of the life time of the network based on three different criteria is introduced; percentage of available power to total power, percentage of alive sensors to total sensors, and percentage of alive sink sensors to total sink sensors. A Matlab based simulator is developed for the introduced model. A number of wireless sensor networks scenarios are presented and discussed.

Elleithy, Abdelrahman

2012-01-01T23:59:59.000Z

196

ULTRA SECURE HIGH RELIABILITY WIRELESS RADIATION MONITOR  

SciTech Connect (OSTI)

Radiation monitoring in nuclear facilities is essential to safe operation of the equipment as well as protecting personnel. In specific, typical air monitoring of radioactive gases or particulate involves complex systems of valves, pumps, piping and electronics. The challenge is to measure a representative sample in areas that are radioactively contaminated. Running cables and piping to these locations is very expensive due to the containment requirements. Penetration into and out of an airborne or containment area is complex and costly. The process rooms are built with thick rebar-enforced concrete walls with glove box containment chambers inside. Figure 1 shows high temperature radiation resistance cabling entering the top of a typical glove box. In some case, the entire processing area must be contained in a 'hot cell' where the only access into the chamber is via manipulators. An example is shown in Figure 2. A short range wireless network provides an ideal communication link for transmitting the data from the radiation sensor to a 'clean area', or area absent of any radiation fields or radioactive contamination. Radiation monitoring systems that protect personnel and equipment must meet stringent codes and standards due to the consequences of failure. At first glance a wired system would seem more desirable. Concerns with wireless communication include latency, jamming, spoofing, man in the middle attacks, and hacking. The Department of Energy's Savannah River National Laboratory (SRNL) has developed a prototype wireless radiation air monitoring system that address many of the concerns with wireless and allows quick deployment in radiation and contamination areas. It is stand alone and only requires a standard 120 VAC, 60 Hz power source. It is designed to be mounted or portable. The wireless link uses a National Security Agency (NSA) Suite B compliant wireless network from Fortress Technologies that is considered robust enough to be used for classified data transmission in place of NSA Type 1 devices.

Cordaro, J.; Shull, D.; Farrar, M.; Reeves, G.

2011-08-03T23:59:59.000Z

197

Mobility Management in Next-Generation Wireless Systems  

E-Print Network [OSTI]

; revised May 19, 1999. This work was supported by the Department of Defense (DoD), National Security Agency asynchronous transfer mode (ATM), and satellite networks. The integration of these networks will be discussed by a discussion of proposed protocols for wireless ATM and satellite networks. Finally, an outline of open

Wang, Wenye

198

8 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 1, JANUARY 2002 Fundamental Limits on Energy Transfer and Circuit  

E-Print Network [OSTI]

8 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 1, JANUARY 2002 Fundamental Limits on Energy, Member, IEEE Abstract--This work investigates fundamental limits on electromechanical energy conversion have not been part of the tide of miniaturization and integration advances from which signal

Sanders, Seth

199

LOCALIZATION AND ENERGY MODELING IN WIRELESS SENSOR Ali Shareef  

E-Print Network [OSTI]

enters a low-power state can potentially result in very large power savings. #12;ACKNOWLEDGMENTS I would components of a sensor node, including processors with emerging energy-saving features, wireless energy-saving strategies in WSN. For example, it can be demonstrated that by carefully selecting

Zhu, Yifeng

200

Wireless Infrastructure for Performing Monitoring, Diagnostics, and Control HVAC and Other Energy-Using Systems in Small Commercial Buildings  

SciTech Connect (OSTI)

This project focused on developing a low-cost wireless infrastructure for monitoring, diagnosing, and controlling building systems and equipment. End users receive information via the Internet and need only a web browser and Internet connection. The system used wireless communications for: (1) collecting data centrally on site from many wireless sensors installed on building equipment, (2) transmitting control signals to actuators and (3) transmitting data to an offsite network operations center where it is processed and made available to clients on the Web (see Figure 1). Although this wireless infrastructure can be applied to any building system, it was tested on two representative applications: (1) monitoring and diagnostics for packaged rooftop HVAC units used widely on small commercial buildings and (2) continuous diagnosis and control of scheduling errors such as lights and equipment left on during unoccupied hours. This project developed a generic infrastructure for performance monitoring, diagnostics, and control, applicable to a broad range of building systems and equipment, but targeted specifically to small to medium commercial buildings (an underserved market segment). The proposed solution is based on two wireless technologies. The first, wireless telemetry, is used for cell phones and paging and is reliable and widely available. This risk proved to be easily managed during the project. The second technology is on-site wireless communication for acquiring data from sensors and transmitting control signals. The technology must enable communication with many nodes, overcome physical obstructions, operate in environments with other electrical equipment, support operation with on-board power (instead of line power) for some applications, operate at low transmission power in license-free radio bands, and be low cost. We proposed wireless mesh networking to meet these needs. This technology is relatively new and has been applied only in research and tests. This proved to be a major challenge for the project and was ultimately abandoned in favor of a directly wired solution for collecting sensor data at the building. The primary reason for this was the relatively short ranges at which we were able to effectively place the sensor nodes from the central receiving unit. Several different mesh technologies were attempted with similar results. Two hardware devices were created during the original performance period of the project. The first device, the WEB-MC, is a master control unit that has two radios, a CPU, memory, and serves as the central communications device for the WEB-MC System (Currently called the 'BEST Wireless HVAC Maintenance System' as a tentative commercial product name). The WEB-MC communicates with the local mesh network system via one of its antennas. Communication with the mesh network enables the WEB-MC to configure the network, send/receive data from individual motes, and serves as the primary mechanism for collecting sensor data at remote locations. The second antenna enables the WEB-MC to connect to a cellular network ('Long-Haul Communications') to transfer data to and from the NorthWrite Network Operations Center (NOC). A third 'all-in-one' hardware solution was created after the project was extended (Phase 2) and additional resources were provided. The project team leveraged a project funded by the State of Washington to develop a hardware solution that integrated the functionality of the original two devices. The primary reason for this approach was to eliminate the mesh network technical difficulties that severely limited the functionality of the original hardware approach. There were five separate software developments required to deliver the functionality needed for this project. These include the Data Server (or Network Operations Center), Web Application, Diagnostic Software, WEB-MC Embedded Software, Mote Embedded Software. Each of these developments was necessarily dependent on the others. This resulted in a challenging management task - requiring high bandwidth communications among

Patrick O'Neill

2009-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Forecasting wireless communication technologies  

Science Journals Connector (OSTI)

The purpose of the paper is to present a formal comparison of a variety of multiple regression models in technology forecasting for wireless communication. We compare results obtained from multiple regression models to determine whether they provide a superior fitting and forecasting performance. Both techniques predict the year of wireless communication technology introduction from the first (1G) to fourth (4G) generations. This paper intends to identify the key parameters impacting the growth of wireless communications. The comparison of technology forecasting approaches benefits future researchers and practitioners when developing a prediction of future wireless communication technologies. The items of focus will be to understand the relationship between variable selection and model fit. Because the forecasting error was successfully reduced from previous approaches, the quadratic regression methodology is applied to the forecasting of future technology commercialisation. In this study, the data will show that the quadratic regression forecasting technique provides a better fit to the curve.

Sabrina Patino; Jisun Kim; Tugrul U. Daim

2010-01-01T23:59:59.000Z

202

Network coded wireless architecture  

E-Print Network [OSTI]

Wireless mesh networks promise cheap Internet access, easy deployment, and extended range. In their current form, however, these networks suffer from both limited throughput and low reliability; hence they cannot meet the ...

Katti, Sachin Rajsekhar

2008-01-01T23:59:59.000Z

203

Optimized Charger Deployment for Wireless Rechargeable Sensor Ji-Hau Liao () Wei-Ting So() Jehn-Ruey Jiang()  

E-Print Network [OSTI]

)(Radiant Energy) (Mechanical Energy) 2 [11] 2: [11] (Sola Power): (Photovoltaic Effect) - P-N (Ambient Sensor Network, WRSN)[2] (Energy Harvesting) (Radio Frequency, RF)(Converter) (DC) : I. (Intensive Energy Harvesting): (Wireless Charger) (Power Receiver) (Wireless Charging) [3] II. (Non-Intensive Energy

Jiang, Jehn-Ruey

204

A novel MAC scheduler to minimize the energy consumption in a Wireless Sensor Network  

Science Journals Connector (OSTI)

The rising success of the Internet of Things has led the Wireless Sensor Networks to play an important role in many fields, ranging from military to civilian applications. However, since sensor nodes are battery powered, communication protocols and applications ... Keywords: Duty cycle, Energy saving, MAC scheduler, Performance evaluation, Wireless Sensor Network

Luca Anchora; Antonio Capone; Vincenzo Mighali; Luigi Patrono; Francesco Simone

2014-05-01T23:59:59.000Z

205

An Optimal Energy Allocation Algorithm for Energy Harvesting Wireless Sensor Networks  

E-Print Network [OSTI]

. Traditionally, a sensor node is mainly powered by a non-rechargeable battery, which has a limited energy storage by enabling the wireless sensor nodes to replenish energy from ambient sources, such as solar, windAn Optimal Energy Allocation Algorithm for Energy Harvesting Wireless Sensor Networks Shaobo Mao

Wong, Vincent

206

Distributed detection and fusion in a large wireless sensor network of random size  

Science Journals Connector (OSTI)

For a wireless sensor network (WSN) with a random number of sensors, we propose a decision fusion rule that uses the total number of detections reported by local sensors as a statistic for hypothesis testing. We assume that the signal power attenuates ... Keywords: decision fusion, deflection coefficient, distributed detection, wireless sensor networks

Ruixin Niu; Pramod K. Varshney

2005-09-01T23:59:59.000Z

207

Improving energy efficiency via probabilistic rate combination in 802.11 multi-rate wireless networks  

E-Print Network [OSTI]

transmission. An alternative way to conserve energy is to apply power control [1­4]. A wireless node is allowedImproving energy efficiency via probabilistic rate combination in 802.11 multi-rate wireless in revised form 20 January 2009 Accepted 27 January 2009 Available online 6 February 2009 Keywords: Energy

Lui, John C.S.

208

Inkjet-Printed Graphene-Based Wireless Gas Sensor Modules , Vasileios Lakafosis1  

E-Print Network [OSTI]

Inkjet-Printed Graphene-Based Wireless Gas Sensor Modules Taoran Le1 , Vasileios Lakafosis1 , Ziyin we demonstrate the use of graphene as the basis for design and development of low-cost, self-powered, battery-less, wireless sensor solutions utilizing thin films produced from environmentally friendly, water

Tentzeris, Manos

209

Heat transfer system  

DOE Patents [OSTI]

A heat transfer system for a nuclear reactor. Heat transfer is accomplished within a sealed vapor chamber which is substantially evacuated prior to use. A heat transfer medium, which is liquid at the design operating temperatures, transfers heat from tubes interposed in the reactor primary loop to spaced tubes connected to a steam line for power generation purposes. Heat transfer is accomplished by a two-phase liquid-vapor-liquid process as used in heat pipes. Condensible gases are removed from the vapor chamber through a vertical extension in open communication with the chamber interior.

McGuire, Joseph C. (Richland, WA)

1982-01-01T23:59:59.000Z

210

Smart Grid: Building a Wireless Connection | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Grid: Building a Wireless Connection Grid: Building a Wireless Connection Smart Grid: Building a Wireless Connection October 7, 2010 - 2:41pm Addthis Dr. Kristina Johnson What does this mean for me? Along with creating tens of thousands of new jobs, bringing our grid into the 21st century will give consumers and businesses the information they need to reduce their energy consumption - and better manage their energy bills. Smart grid technologies, tools and techniques will also help us reduce the risk of service interruptions of blackouts by giving utilities real-time information about the health of their power networks. The evolution of the wireless industry serves as a valuable reminder of what's possible when you open an industry up to new competition and capital and allow new business models to take root.

211

Threat Insight Quarterly Wireless Technology  

E-Print Network [OSTI]

X-Force ® Threat Insight Quarterly Wireless Technology April 2006 #12;X - F O R C E T H R E A T I N the Wireless Threat ..................................................3 Wireless Threats-Force Catastrophic Risk Index...................................... 13 Future X-Force Threat Insight Quarterly Topics

212

Power transaction issues in deregulated power systems  

E-Print Network [OSTI]

With the introduction of the deregulation in the power industry, it becomes possible to wheel power across the transmission network. Hence, some issues involving the network's physical capability to transfer power and the allocation of the network...

Roycourt, Henrik

2012-06-07T23:59:59.000Z

213

Applying an intelligent and automated emissions measurement system to characterize the RF environment for supporting wireless technologies  

SciTech Connect (OSTI)

The use of wireless technologies in commercial and industrial facilities has grown significantly in the past several years. New applications of wireless technologies with increasing frequency and varying radiated power are being developed everyday. Wireless application specialists and end users have already identified several sources of electromagnetic interference (EMI) in these facilities. Interference has been reported between wireless devices and between these devices and other types of electronic equipment either using frequencies in the unlicensed wireless spectrum or equipment that may generate undesired man-made noise in this spectrum. Facilities that are not using the wireless band should verify the spectral quality of that band and the electromagnetic compatibility (EMC) integrity of safety-related power and signal cables before installing wireless technologies. With the introduction of new wireless devices in the same electromagnetic space where analog and digital I and C systems and cables must co-exist, the ability of facility managers to manage their spectra will dictate the degree of interference between wireless devices and other electronic equipment. Because of the unknowns associated with interference with analog and digital I and C systems in the wireless band, nuclear power plants have been slow to introduce wireless technologies in plant areas. With the application of newly developed advanced radiated emissions measurement systems that can record, process, and analyze radiated and conducted emissions in a cost-effective manner, facility managers can more reliably characterize potential locations for wireless technologies, including potential coupling effects with safety-related power and signal cables, with increased confidence that the risks associated with creating an interference can be significantly reduced. This paper will present an effective philosophy already being used in other mission-critical applications for managing EMC, an overview of wireless emissions sources, the need for EMC characterization of power and signal cables with exposure to wireless devices, and an intelligent and automated emissions measurement system. Such a system can be used in nuclear power plants to determine the spectral quality of the wireless band, the EMC characterization of power and signal cables, and if wireless technologies can be collocated in plants while reducing the risk of interference with I and C systems. (authors)

Keebler, P. F.; Phipps, K. O. [EPRI Solutions, 942 Corridor Park Blvd, Knoxville, TN 37932 (United States)

2006-07-01T23:59:59.000Z

214

Wireless Sensor Network Fundamentals  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wireless Sensor Network Fundamentals Wireless Sensor Network Fundamentals Speaker(s): Steven Lanzisera Date: February 8, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Kevin Kircher Wireless sensor networks have been promising to provide easy data collection and control capability to applications ranging from scientific data collection, disaster recover, national security, and more. The user experience, however, has been filled with confusing terminology, complicated systems, and a lack of interoperability between vendors. Users with a background in the technology and fundamentals are better able to understand system capabilities, make decisions, and end up with a network that meets their needs. Although a sufficient coverage of this topic is at least a semester course, the goal of this talk is to give a brief

215

E-Print Network 3.0 - ad-hoc wireless environments Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Search Powered by Explorit Topic List Advanced Search Sample search results for: ad-hoc wireless environments Page: << < 1 2 3 4 5 > >> 1 Sum-of-Sinusoid channel models...

216

A high speed image transmission system for ultra-wideband wireless links  

E-Print Network [OSTI]

Ultra-wideband (UWB) communication is an emerging technology that offers short range, high data rate wireless transmission, with low power consumption and low consumer cost. Operating in the 3.1 GHz - 10.6 GHz frequency ...

Liang, Helen He

2009-01-01T23:59:59.000Z

217

Sensemble : a wireless inertial sensor system for the interactive dance and collective motion analysis  

E-Print Network [OSTI]

The motivation for this project is the recent opportunity to leverage low-power, high-bandwidth RF devices and compact inertial sensors to create a wearable, wireless, motion analysis system meeting the demands of many ...

Aylward, Ryan P

2006-01-01T23:59:59.000Z

218

Localized radio frequency communication using asynchronous transfer mode protocol  

DOE Patents [OSTI]

A localized wireless communication system for communication between a plurality of circuit boards, and between electronic components on the circuit boards. Transceivers are located on each circuit board and electronic component. The transceivers communicate with one another over spread spectrum radio frequencies. An asynchronous transfer mode protocol controls communication flow with asynchronous transfer mode switches located on the circuit boards.

Witzke, Edward L. (Edgewood, NM); Robertson, Perry J. (Albuquerque, NM); Pierson, Lyndon G. (Albuquerque, NM)

2007-08-14T23:59:59.000Z

219

Truck-based mobile wireless sensor networks for the experimental observation of  

Science Journals Connector (OSTI)

Heavy vehicles driving over a bridge create a complex dynamic phenomenon known as vehicle–bridge interaction. In recent years, interest in vehicle–bridge interaction has grown because a deeper understanding of the phenomena can lead to improvements in bridge design methods while enhancing the accuracy of structural health monitoring techniques. The mobility of wireless sensors can be leveraged to directly monitor the dynamic coupling between the moving vehicle and the bridge. In this study, a mobile wireless sensor network is proposed for installation on a heavy truck to capture the vertical acceleration, horizontal acceleration and gyroscopic pitching of the truck as it crosses a bridge. The vehicle-based wireless monitoring system is designed to interact with a static, permanent wireless monitoring system installed on the bridge. Specifically, the mobile wireless sensors time-synchronize with the bridge's wireless sensors before transferring the vehicle response data. Vertical acceleration and gyroscopic pitching measurements of the vehicle are combined with bridge accelerations to create a time-synchronized vehicle–bridge response dataset. In addition to observing the vehicle vibrations, Kalman filtering is adopted to accurately track the vehicle position using the measured horizontal acceleration of the vehicle and positioning information derived from piezoelectric strip sensors installed on the bridge deck as part of the bridge monitoring system. Using the Geumdang Bridge (Korea), extensive field testing of the proposed vehicle–bridge wireless monitoring system is conducted. Experimental results verify the reliability of the wireless system and the accuracy of the vehicle positioning algorithm.

Junhee Kim; Jerome P Lynch; Jong-Jae Lee; Chang-Geun Lee

2011-01-01T23:59:59.000Z

220

Testing thermocline filler materials and molten-salt heat transfer fluids for thermal energy storage systems used in parabolic trough solar power plants.  

SciTech Connect (OSTI)

Parabolic trough power systems that utilize concentrated solar energy to generate electricity are a proven technology. Industry and laboratory research efforts are now focusing on integration of thermal energy storage as a viable means to enhance dispatchability of concentrated solar energy. One option to significantly reduce costs is to use thermocline storage systems, low-cost filler materials as the primary thermal storage medium, and molten nitrate salts as the direct heat transfer fluid. Prior thermocline evaluations and thermal cycling tests at the Sandia National Laboratories' National Solar Thermal Test Facility identified quartzite rock and silica sand as potential filler materials. An expanded series of isothermal and thermal cycling experiments were planned and implemented to extend those studies in order to demonstrate the durability of these filler materials in molten nitrate salts over a range of operating temperatures for extended timeframes. Upon test completion, careful analyses of filler material samples, as well as the molten salt, were conducted to assess long-term durability and degradation mechanisms in these test conditions. Analysis results demonstrate that the quartzite rock and silica sand appear able to withstand the molten salt environment quite well. No significant deterioration that would impact the performance or operability of a thermocline thermal energy storage system was evident. Therefore, additional studies of the thermocline concept can continue armed with confidence that appropriate filler materials have been identified for the intended application.

Kelly, Michael James; Hlava, Paul Frank; Brosseau, Douglas A.

2004-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Oak Ridge National Laboratory - Wireless Networking  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Oak Ridge National Laboratory Oak Ridge National Laboratory Oak Ridge National Laboratory UT-Battelle U.S. Department of Energy Oak Ridge National Laboratory Oak Ridge National Laboratory Oak Ridge National Laboratory Find People · Contacts · Site Index · Comments Saturday, January 11, 2014 Location right-hand arrow ORNL Home · Visiting ORNL · Wireless Networking Home News About ORNL ORNL Video Science & Technology Spallation Neutron Source User Facilities Technology Transfer Working with ORNL Community Outreach Jobs Visitor Information Calendar of Events University Partners Contact Us Featured Sites Home News About ORNL ORNL Video Science & Technology Spallation Neutron Source User Facilities Technology Transfer Working with ORNL Community Outreach Jobs Visitor Information Calendar of Events

222

The Emergence of RF-Powered Computing  

Science Journals Connector (OSTI)

Extracting power "from thin air" has a quality of science fiction about it, yet technology trends make it likely that in the near future, small computers in urban areas will use ambient RF signals for both power and communication. The first Web extra ... Keywords: Backscatter,RF signals,Radio frequency,Computers,Telemetry,TV,Power distribution,Wireless communication,Ubiquitous computing,emerging technologies,wireless communication,ubiquitous computing

Shyamnath Gollakota, Matthew Reynolds, Joshua Smith, David Wetherall

2014-01-01T23:59:59.000Z

223

Energy harvester for a wireless sensor in a boiler environment  

Science Journals Connector (OSTI)

Abstract Wireless sensors have become a focus of study in the field of measurement technologies. The power supply of many wireless sensors is based on batteries or external power sources. However, there is increasing interest in finding solutions where the batteries can be leaved away and the power for the wireless sensors is produced from the environment in which the sensors operate. The technologies required are called energy harvesting or scavenging technologies. This paper introduces the principles, modeling and a practical implementation of a self-powering solution for a wireless sensor for energy boilers or other hot reactor vessels. With the aid of energy solution introduced, the wireless sensor can operate autonomously without any batteries. One of the design targets in this work was that the top part of harvester’s mechanics must fit to the opening or assembly tube of diameter less than 15 mm in the boiler wall reserved for standard instrument assemblies. So the top of harvester collects and conducts thermal energy to element generating electricity from it. The harvester and further the measuring and communication electronics are mounted outside the hot area. The harvester solution introduced in the paper can produce about 114 mW power, when top of harvester mechanics was inserted to the test oven heated to temperature of +500 °C. The sensor function or type is not defined nor limited in this study. The electric energy generated by harvester can be used to power, for example, temperature, heat flux, flow, vibration or other little energy needing sensors.

Ilkka Korhonen; Raija Lankinen

2014-01-01T23:59:59.000Z

224

Short-Term Solar Energy Forecasting Using Wireless Sensor Networks  

E-Print Network [OSTI]

Short-Term Solar Energy Forecasting Using Wireless Sensor Networks Stefan Achleitner, Tao Liu an advantage for output power prediction. Solar Energy Prediction System Our prediction model is based variability of more then 100 kW per minute. For practical usage of solar energy, predicting times of high

Cerpa, Alberto E.

225

Design Considerations for Ultra-Low Energy Wireless Microsensor Nodes  

E-Print Network [OSTI]

. The most familiar sources of ambient energy include solar power, thermal gradients, radio-frequency (RF to retain local energy storage. Coupling energy- harvesting techniques with some form of energy storage canDesign Considerations for Ultra-Low Energy Wireless Microsensor Nodes Benton H. Calhoun, Student

Chandrakasan, Anantha

226

Improved Wireless Performance from Mode Scattering in Ventilation Ducts  

E-Print Network [OSTI]

, the authors of [1] note a possible impact of mode scattering effects to the power levels measured in test HVAC filtering effect. So far this hypothesis has yet to be explorered. Al- though the authors of [2] present to investigate the impact that mode filtering has on an actual wireless communication. Experimental Analysis

Stancil, Daniel D.

227

Technology Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technology Transfer Since 1974, the Federal Laboratory Consortium (FLC) Award for Excellence in Technology Transfer has recognized scientists and engineers at federal government...

228

Queue management based duty cycle control for end-to-end delay guarantees in wireless sensor networks  

Science Journals Connector (OSTI)

In this paper, we propose an analytical method for duty cycle adaptation in wireless sensor networks so that delay requirement is guaranteed while power consumption is minimized. The proposed method, named Dual-QCon, provides a formal method for stabilizing ... Keywords: Delay guarantee, Duty cycle control, Wireless sensor networks

Heejung Byun; Soogook Son; Jungmin So

2013-08-01T23:59:59.000Z

229

Wireless technology and library acoustics  

Science Journals Connector (OSTI)

The modern library cannot function without modern technology. Printers copiers wireless computers and espresso machines all contribute to the soundscape of the typical municipal library (and many academic libraries too). While some of these noise sources are stationary and can be isolated acoustically wireless computing has transformed the acoustic experience for the typical library patron. Study carrels and desks used to define the boundaries of study and work areas in libraries and architects could design spaces accordingly. With wireless technology every space is a study space. This paper will discuss the implications of wireless technology on library acoustics. Measurement results at a variety of case study libraries will be presented.

2006-01-01T23:59:59.000Z

230

Emerging Applications of Wireless Technologies  

Science Journals Connector (OSTI)

...“Smart Grid” is another example of application using wireless technology that has the potential of subtle ... which improve generation, distribution, and delivery of electricity. The current electricity grids ...

Jan Kruys; Luke Qian

2011-01-01T23:59:59.000Z

231

Deploying Power-Aware, Wireless Sensor Agents  

Science Journals Connector (OSTI)

......active-duty and Reserve personnel, and soldiers and airmen...communication and cluster head selection began to operate as...withdrawal of troops and personnel (and the regional node...exercise and the primary training venue for Commander...the urban operations training facility (UOTF) for......

Daniel D. Corkill

2011-03-01T23:59:59.000Z

232

Transmission Power Management for Wireless Health Applications  

E-Print Network [OSTI]

conference on Body area networks, 2008. [Arduino]Arduino, [Online]. Available: http://www.arduino.cc/ [IEEE, 2005, pp. 37-44. [Arduino] Arduino CC. Arduino Pro

Amini, Navid

2012-01-01T23:59:59.000Z

233

Active Scheme to Measure Throughput of Wireless Access Link in Hybrid Wired-Wireless Network  

E-Print Network [OSTI]

, at the wireless The authors are with Networking Research Laboratory, Department of Electrical and Computer1 Active Scheme to Measure Throughput of Wireless Access Link in Hybrid Wired-Wireless Network to measure the download throughput of an IEEE 802.11 wireless access link in a hybrid wired-wireless network

Rojas-Cessa, Roberto

234

Microsoft Word - Wireless - Nike CX.doc  

Broader source: Energy.gov (indexed) [DOE]

6, 2010 6, 2010 REPLY TO ATTN OF: KEC-4 SUBJECT: Environmental Clearance Memorandum Tim Murray Project Manager - TELP-TPP-3 Proposed Action: Nike Clearwire Wireless Communication Facilities Budget Information: WO# 227499, Task 01 Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.7 Acquisition, installation, operation, and removal of communication systems... B1.15 Siting, construction (or modification), and operation of support buildings or support structures... B1.19 Siting, construction, and operation of microwave and radio communication towers and associated facilities... Location: Washington County, Oregon, Township 1 South, Range 1 West, Section 5 Proposed by: Bonneville Power Administration (BPA)

235

Display Size Wireless LAN  

E-Print Network [OSTI]

.) - Security sofware ­ESET Smart Security. No Reuse PC with English OS for this time. PC PC Code Image Brand PC PC Code Image Brand Model F008 Panasonic CF-W2 Pentium733 M 1.10GHz 256MB 40GB 12.1 inch 1.0kg System Memory HDD Display Size Weight OS Accessory LAN Wireless LAN Remarks PC PC Code Image Brand

Katsumoto, Shingo

236

FEMP Technology Brief: Wireless Sensor Networks for Data Centers |  

Broader source: Energy.gov (indexed) [DOE]

Wireless Sensor Networks for Data Centers Wireless Sensor Networks for Data Centers FEMP Technology Brief: Wireless Sensor Networks for Data Centers October 7, 2013 - 9:15am Addthis The geometrical arrangement of your server rack in a data center to optimize heat removal can dramatically lower cooling and fan power needs. Server rack configuration in the Data Center at the National Renewable Energy Laboratory (NREL) Research Support Facility. Photo credit: NREL PIX 18784 The waste heat emitted from institutional data center servers can be removed more efficiently when design considerations are evaluated and innovative monitoring sensor networks are installed for verification and measurement. Hot aisle containment system in the Data Center at the NREL Research Support Facility. Photo credit: NREL PIX 18780

237

FEMP Technology Brief: Wireless Sensor Networks for Data Centers |  

Broader source: Energy.gov (indexed) [DOE]

FEMP Technology Brief: Wireless Sensor Networks for Data Centers FEMP Technology Brief: Wireless Sensor Networks for Data Centers FEMP Technology Brief: Wireless Sensor Networks for Data Centers October 7, 2013 - 9:15am Addthis The geometrical arrangement of your server rack in a data center to optimize heat removal can dramatically lower cooling and fan power needs. Server rack configuration in the Data Center at the National Renewable Energy Laboratory (NREL) Research Support Facility. Photo credit: NREL PIX 18784 The waste heat emitted from institutional data center servers can be removed more efficiently when design considerations are evaluated and innovative monitoring sensor networks are installed for verification and measurement. Hot aisle containment system in the Data Center at the NREL Research Support Facility. Photo

238

Power optimization of algorithmic analog-to-digital converters  

Science Journals Connector (OSTI)

The dissertation presents techniques for power optimization in algorithmic analog-to-digital converters (ADCs) enabling realization of ultra low power data converters. Implantable biomedical devices and autonomous wireless sensor networks are among the ...

Steven Daniel Tucker / David M. Binkley

2005-01-01T23:59:59.000Z

239

Using Solid Particles as Heat Transfer Fluid for use in Concentrating...  

Broader source: Energy.gov (indexed) [DOE]

Using Solid Particles as Heat Transfer Fluid for use in Concentrating Solar Power (CSP) Plants Using Solid Particles as Heat Transfer Fluid for use in Concentrating Solar Power...

240

Handoff Notification in Wireless Hybrid Networks  

Science Journals Connector (OSTI)

Hybrid networks composed of a wireless infrastructure network providing Internet access to an underlying...

Guillaume Chelius; Claude Chaudet

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Pervasive healthcare and wireless health monitoring  

Science Journals Connector (OSTI)

With an increasingly mobile society and the worldwide deployment of mobile and wireless networks, the wireless infrastructure can support many current and emerging healthcare applications. This could fulfill the vision of "Pervasive Healthcare" or healthcare ... Keywords: ad hoc wireless networks, healthcare applications, location management, mobile and wireless networks, pervasive

Upkar Varshney

2007-03-01T23:59:59.000Z

242

Development of power facility management services using RFID/USN  

Science Journals Connector (OSTI)

In the electric power industry, there are many research projects to stabilise the power and increase the efficiency using ubiquitous technology. Many power utilities control and supervise the transmission line of energy to avoid power failures. In this ... Keywords: #, 47, RFID, RFID&, USN, cable joint, electric power industry, power facility management, radio frequency identification, service framework, ubiquitous sensor networks, wireless networks

Young-Il Kim; Jae-Ju Song; Jin-Ho Shin; Bong-Jae Yi; Hoon Choi

2009-03-01T23:59:59.000Z

243

Wireless LAN E001 Fujitsu  

E-Print Network [OSTI]

PC Code Image Brand Model 1 / 5 #12; CPU System Memory HDD Display Size Weight OS Accessory LAN Wireless LAN Remarks PC PC Code Image Brand Model E008 EPSON Endeavor NT331 Celeron M1.40GHz LAN Wireless LAN Remarks PC PC Code Image Brand Model E019 EPSON Endeavor NT331 Celeron M1.40GHz

Katsumoto, Shingo

244

Wireless LAN G001 Panasonic  

E-Print Network [OSTI]

Office MicrosoftOffice OSPC PC PC Code Image Brand Model All Reuse Note PC contain these software LAN Wireless LAN Remarks PC PC Code Image Brand Model G007 Panasonic CF-R7 Core2 Duo U7700 1 Accessory LAN Wireless LAN Remarks PC PC Code Image Brand Model G015 NEC Versa PC- VJ14MEFUW Celeron M

Katsumoto, Shingo

245

Transferring Data  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Transferring Data Transferring Data to and from NERSC Yushu Yao 1 Tuesday, March 8, 2011 Overview 2 * Structure of NERSC Systems and Disks * Data Transfer Nodes * Transfer Data from/to NERSC - scp/sftp - bbcp - GridFTP * Sharing Data Within NERSC Tuesday, March 8, 2011 Systems and Disks 3 System Hopper Franklin Carver Euclid Data Transfer Node PDSF Global Home ($HOME) Global Scratch ($GSCRATCH) Project Directory Local Non-shared Scratch Data transfer nodes can access most of the disks, suggested for transferring data in/out NERSC Tuesday, March 8, 2011 Data Transfer Nodes * Two Servers Available Now: - dtn01.nersc.gov and dtn02.nersc.gov - Accessible by all NERSC users * Designed to Transfer Data: - High speed connection to HPSS and NGF (Global Home, Project, and Global Scratch) - High speed ethernet to wide area network

246

Proactive mobile wireless networks : an infrastructureless wireless network architecture for delay-sensitive applications  

E-Print Network [OSTI]

Infrastructureless wireless networks are an important class of wireless networks that is best suited for scenarios where there is temporary and localized telecommunication demand. Such networks consist of wireless devices ...

Dai, Lillian Lei, 1978-

2008-01-01T23:59:59.000Z

247

Wireless Control Systems:Wireless Control Systems: Scientific Challenges andScientific Challenges and  

E-Print Network [OSTI]

Wireless Control Systems:Wireless Control Systems: Scientific Challenges andScientific Challenges and Emerging ApplicationsEmerging Applications Karl Henrik Johansson School of Electrical Engineering Royal, Greece 27-29 Jun, 2007 © Karl H. Johansson, Wireless control Acknowledgements

Johansson, Karl Henrik

248

Wireless device monitoring methods, wireless device monitoring systems, and articles of manufacture  

DOE Patents [OSTI]

Wireless device monitoring methods, wireless device monitoring systems, and articles of manufacture are described. According to one embodiment, a wireless device monitoring method includes accessing device configuration information of a wireless device present at a secure area, wherein the device configuration information comprises information regarding a configuration of the wireless device, accessing stored information corresponding to the wireless device, wherein the stored information comprises information regarding the configuration of the wireless device, comparing the device configuration information with the stored information, and indicating the wireless device as one of authorized and unauthorized for presence at the secure area using the comparing.

McCown, Steven H. (Rigby, ID); Derr, Kurt W. (Idaho Falls, ID); Rohde, Kenneth W. (Idaho Falls, ID)

2012-05-08T23:59:59.000Z

249

Software-defined Radio based Wireless Tomography: Experimental Demonstration and  

E-Print Network [OSTI]

1 Software-defined Radio based Wireless Tomography: Experimental Demonstration and Verification presents an experimental demonstration of Software-Defined Radio (SDR) based wireless tomography us- ing follows our vision and previous theoretical study of wireless tomography which combines wireless

Qiu, Robert Caiming

250

Multiuser Wireless Communication Systems Ashutosh Sabharwal and Behnaam Aazhang  

E-Print Network [OSTI]

of Electrical and Computer Engineering Rice University Houston TX 77005 Abstract Wireless cellular systems haveMultiuser Wireless Communication Systems Ashutosh Sabharwal and Behnaam Aazhang Department high speed wireless networks. Keywords : Wireless communications, channel estimation, multiuser

Sabharwal, Ashutosh

251

These works have been submitted to the IEEE for possible publication in the IEEE Transactions on Power Systems. Copyright may be transferred without notice,  

E-Print Network [OSTI]

Member, IEEE #12;Submitted March 22, 2010 to IEEE Transactions on Power Systems Abstract--Market powerThese works have been submitted to the IEEE for possible publication in the IEEE Transactions be accessible. A Sensitivity Approach to Detection of Market Power Potential Bernard Lesieutre, Senior Member

252

Petri net based evaluation of energy consumption in wireless sensor nodes  

Science Journals Connector (OSTI)

Wireless Sensor Networks have proven their capability to deal with problems where wide and hardly accessible areas need to be monitored. Among the other systems there are also sensor networks in which nodes can voluntarily modify their positions to better ... Keywords: Environmental Monitoring, Fluid Stochastic Petri Nets, Power Consumption Modelling, Power-Aware Systems

Maurizio D'Arienzo; Mauro Iacono; Stefano Marrone; Roberto Nardone

2013-10-01T23:59:59.000Z

253

Analysis of a Cone-Based Distributed Topology Control Algorithm for Wireless Multi-hop Networks  

E-Print Network [OSTI]

], network protocols that min- imize energy consumption are key to the successful usage of wireless sensor at maximum power then, if a graph Ga con- taining is R, i.e. p(R) = P. If every node transmits with power P, then we have an induced graph GR = (V, E

Chaudhuri, Soma

254

A Battery-Free Tag for Wireless Monitoring of Heart Sounds  

E-Print Network [OSTI]

A Battery-Free Tag for Wireless Monitoring of Heart Sounds Soumyajit Mandal, Lorenzo Turicchia that monitors heart sounds. The tag powers up by harvesting ambient RF energy, and contains a low measure heart rate at distances up to 7m from an FCC-compliant RF power source. We also suggest how delays

Sarpeshkar, Rahul

255

Energy-Efficient Modulation Design for Reliable Communication in Wireless Networks  

E-Print Network [OSTI]

Energy-Efficient Modulation Design for Reliable Communication in Wireless Networks Qing Chen transmit power scenarios. We have noted that variable power schemes can attain higher energy-efficiencies. The analysis of energy-efficient modulation design is also conducted in multi- hop linear networks

Gursoy, Mustafa Cenk

256

E-Print Network 3.0 - ad-hoc wireless sensor Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in wireless sensor networks The rapid progress of wireless communication and embedded micro-sensing MEMS... technologies has made wireless sensor networks possible. A wireless...

257

Wireless System Considerations When Implementing NERC Critical  

Broader source: Energy.gov (indexed) [DOE]

Wireless System Considerations When Implementing NERC Critical Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards Energy asset owners are facing a monumental challenge as they address compliance with the North American Electric Reliability Corporation (NERC) Critical Infrastructure Protection (CIP) Standards (CIP-002 through CIP-009). The increased use of wireless technologies and their introduction into control center networks and field devices compound this challenge, as ambiguity exists regarding the applicability of the CIP requirements to wireless networking technologies. Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards More Documents & Publications

258

Energy Solutions Using Wireless Telemetry  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solutions Using Wireless Telemetry Solutions Using Wireless Telemetry Speaker(s): Andy Green Date: June 12, 2001 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Satkartar K. Kinney This talk will address the following: * Introduction to wireless data networks * What are cellular control channels and why do I care? * Telemetry using wireless short packet data * Aeris technologies * Energy applications - Automatic meter reading - HVAV-R monitoring and control - Home gateways and remote thermostat control - Load management and curtailment - Distribution automation - Supply monitoring/management * The future For more information on this topic, you're invited to visit Aeris.Net at: http://www.aeris.net For more information about this seminar, please contact: Satkartar Kinney(510) 495-2365

259

Security Scheme in Wireless Grid  

Science Journals Connector (OSTI)

In this paper, we considered the two security services of authorization and data security in wireless Grid. The security issues is related to authorization and security, specific to Grid, the characteristics of t...

Yue Hong Zhang; Li Hao; Zhong Shan Yang

2011-01-01T23:59:59.000Z

260

Wireless Communications in Smart Grid  

Science Journals Connector (OSTI)

Communication networks play a crucial role in smart grid, as the intelligence of this complex system ... essential part of the scalable communication infrastructure for smart grid. In particular, wireless network...

Zoran Bojkovic; Bojan Bakmaz

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

A wireless sensor tag platform for container security and integrity  

SciTech Connect (OSTI)

Cargo containers onboard ships are widely used in the global supply chain. The need for container security is evidenced by the Container Security Initiative launched by the U.S. Bureau of Customs and Border Protection (CBP). One method of monitoring cargo containers is using low power wireless sensor tags. The wireless sensor tags are used to set up a network that is comprised of tags internal to the container and a central device. The sensor network reports alarms and other anomalies to a central device, which then relays the message to an outside network upon arrival at the destination port. This allows the port authorities to have knowledge of potential security or integrity issues before physically examining the container. Challenges of using wireless sensor tag networks for container security include battery life, size, environmental conditions, information security, and cost among others. PNNL developed an active wireless sensor tag platform capable of reporting data wirelessly to a central node as well as logging data to nonvolatile memory. The tags, operate at 2.4 GHz over an IEEE 802.15.4 protocol, and were designed to be distributed throughout the inside of a shipping container in the upper support frame. The tags are mounted in a housing that allows for simple and efficient installation or removal prior to, during, or after shipment. The distributed tags monitor the entire container volume. The sensor tag platform utilizes low power electronics and provides an extensible sensor interface for incorporating a wide range of sensors including chemical, biological, and environmental sensors.

Amaya, Ivan A.; Cree, Johnathan V.; Mauss, Fredrick J.

2011-05-06T23:59:59.000Z

262

IEEE COMMUNICATIONS MAGAZINE, SPECIAL ISSUE MULTIACCESS FOR BROADBAND WIRELESS 100 Wireless Bandwidth in the Making  

E-Print Network [OSTI]

IEEE COMMUNICATIONS MAGAZINE, SPECIAL ISSUE MULTIACCESS FOR BROADBAND WIRELESS 100 Wireless to approaching the information theoretic limits of wireless multiple­access channels. This article offers a brief review of those technologies and their promise to meet future demand for wireless data rate. Keywords

Verdú, Sergio

263

Control over Wireless NetworksControl over Wireless Networks Karl Henrik Johansson  

E-Print Network [OSTI]

Control over Wireless NetworksControl over Wireless Networks Karl Henrik Johansson School of Electrical Engineering Royal Institute of Technology Stockholm, Sweden 25th Benelux Meeting on Systems, 2006 Wireless control systemWireless control system Sensors Controllers Actuators A collection

Johansson, Karl Henrik

264

EVERYONE, IT SEEMS, IS GOING WIRELESS. Wireless communications technology even shares  

E-Print Network [OSTI]

data sent over wireless net- works with minimal signal degradation. Professor of electrical engineeringEVERYONE, IT SEEMS, IS GOING WIRELESS. Wireless communications technology even shares the spotlight with celebrities and political leaders in major news media. In fact, Newsweek recently took a look at the wireless

Bieber, Michael

265

A wireless volume control receiver for hearing aids  

E-Print Network [OSTI]

) Robert DeOtte ember) ~ Jolte Pineda Gyvez (Me r) Alt n Patton (Head o Department) August 1993 ABSTRACT A Wireless Volume Control Receiver for Hearing Aids. (August 1993) Alexander Herve Reyes, B. S. , Texas A&M University Chair of Advisory... Committee: Dr. Edgar Sdnchez ? Sinencio Hearing aids have been greatly improved over the past few years because of better technology and more innovative ideas. Today, these devices are smaller in size, consume less power and some can be programmed to fit...

Reyes, Alexander Herve

2012-06-07T23:59:59.000Z

266

Wireless Josephson amplifier  

SciTech Connect (OSTI)

Josephson junction parametric amplifiers are playing a crucial role in the readout chain in superconducting quantum information experiments. However, their integration with current 3D cavity implementations poses the problem of transitioning between waveguide, coax cables, and planar circuits. Moreover, Josephson amplifiers require auxiliary microwave components, like directional couplers and/or hybrids, that are sources of spurious losses and impedance mismatches that limit measurement efficiency and amplifier tunability. We have developed a wireless architecture for these parametric amplifiers that eliminates superfluous microwave components and interconnects. This greatly simplifies their assembly and integration into experiments. We present an experimental realization of such a device operating in the 9–11?GHz band with about 100?MHz of amplitude gain-bandwidth product, on par with devices mounted in conventional sample holders. The simpler impedance environment presented to the amplifier also results in increased amplifier tunability.

Narla, A.; Sliwa, K. M.; Hatridge, M.; Shankar, S.; Frunzio, L.; Schoelkopf, R. J.; Devoret, M. H. [Department of Applied Physics, Yale University, New Haven, Connecticut 06511 (United States)

2014-06-09T23:59:59.000Z

267

Wireless Technology Leaps the Last Mile  

Science Journals Connector (OSTI)

Topics include "Wireless Technology Leaps the Last Mile," "Researcher Turns Computers into Better Listeners," and "IBM Puts Encryption in a Processor. Keywords: wireless technology, speech recognition technology, encryption, digital-content protection

Linda Dailey Paulson

2006-06-01T23:59:59.000Z

268

Network coding for robust wireless networks  

E-Print Network [OSTI]

Wireless networks and communications promise to allow improved access to services and information, ubiquitous connectivity, and mobility. However, current wireless networks are not well-equipped to meet the high bandwidth ...

Kim, MinJi, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

269

Wireless, automated monitoring for potential landslide hazards  

E-Print Network [OSTI]

This thesis describes research efforts toward the development of a wireless sensor node, which can be employed in durable and expandable wireless sensor networks for remote monitoring of soil conditions in areas conducive to slope stability failures...

Garich, Evan Andrew

2007-09-17T23:59:59.000Z

270

Ontological Configuration Management for Wireless Mesh Routers  

Science Journals Connector (OSTI)

Wireless mesh networks (WMNs) are a category of wireless networks that are self-organized, robust and which offer more flexible client coverage with less equipment requirements than wired networks. In WMNs, mesh routers constitute the network's "backbone". ...

Iván Díaz; Cristian Popi; Olivier Festor; Juan Touriño; Ramón Doallo

2009-10-01T23:59:59.000Z

271

Wireless device monitoring systems and monitoring devices, and associated methods  

DOE Patents [OSTI]

Wireless device monitoring systems and monitoring devices include a communications module for receiving wireless communications of a wireless device. Processing circuitry is coupled with the communications module and configured to process the wireless communications to determine whether the wireless device is authorized or unauthorized to be present at the monitored area based on identification information of the wireless device. Methods of monitoring for the presence and identity of wireless devices are also provided.

McCown, Steven H; Derr, Kurt W; Rohde, Kenneth W

2014-05-27T23:59:59.000Z

272

The world of wireless and kids  

Science Journals Connector (OSTI)

In this panel, we will explore the impact that emerging new wireless technologies have on the way children learn, communicate and play. The challenge of interface design for children's wireless technologies will be discussed along with the opportunities ... Keywords: children, educational applications, wireless technologies

Allison Druin; Erik Strommen; Matt Barranca; Heiko Sacher; Deborah G. Tatar; Elliot Solloway

2002-04-01T23:59:59.000Z

273

Electrical and Computer Engineering 5870 Wireless Communications  

E-Print Network [OSTI]

Electrical and Computer Engineering 5870 Wireless Communications Fall 2011 Syllabus Instructor:45 Office Hours: e-mail for appointment (including weekend days) Textbooks: ­ "Wireless Communications: Principles and Communications" by Theodore S. Rappaport, 2nd edition, 2003, Prentice Hall ­ "Wireless

Cetiner, Bedri A.

274

Definition: Transfer Capability | Open Energy Information  

Open Energy Info (EERE)

Transfer Capability Transfer Capability The measure of the ability of interconnected electric systems to move or transfer power in a reliable manner from one area to another over all transmission lines (or paths) between those areas under specified system conditions. The units of transfer capability are in terms of electric power, generally expressed in megawatts (MW). The transfer capability from 'Area A' to 'Area B' is not generally equal to the transfer capability from 'Area B' to 'Area A.'[1] Related Terms transmission lines, power, electricity generation, transmission line References ↑ Glossary of Terms Used in Reliability Standards An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Transfer_Capability&oldid=480565"

275

Implementing a Low Power TDMA Protocol Over 802.11  

E-Print Network [OSTI]

, or wind energy to power themselves and their wireless network interface. The availability of low- powerImplementing a Low Power TDMA Protocol Over 802.11 Jim Snow, Wu-chi Feng, Wu-chang Feng (jsnow and implementation of our protocol and its performance compared to standard 802.11 in terms of throughput, power

276

1Center for Wireless Technology Eindhoven Where innovation starts  

E-Print Network [OSTI]

1Center for Wireless Technology Eindhoven Where innovation starts Department of Electrical Engineering Center for Wireless Technology Eindhoven #12;2 3Center for Wireless Technology Eindhoven Wireless communication Wireless communication is an integral and increasingly important aspect of our daily lives

Franssen, Michael

277

Project Profile: Concentrated Solar Thermoelectric Power | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Solar Thermoelectric Power Project Profile: Concentrated Solar Thermoelectric Power MIT logo The Rohsenow-Kendall Heat Transfer Lab at Massachusetts Institute of...

278

Implementing a green bicycle alliance using a wireless sensor network  

Science Journals Connector (OSTI)

This study used the wireless sensor network (WSN) technique to design a bike device module, a bike path establishment module and a cloud service module. These three modules were used to address issues related to cycling activities, including green power supply, activity and health records, trajectory monitoring and group positioning and immediate safety issues. GPS was not required, and as long as the cyclists remained on the paths provided by the bike path establishment module and used the cloud service module, the previously mentioned issues could be addressed. The cloud service module included a path establishment simulation system that could enable a path manager to simulate paths before they were physically provided, to determine the ideal establishment method for providing wireless sensor nodes. This study use the Danshui Golden Waterfront in northern Taiwan to implement on-site establishment and installation.

Haw-Yun Shin; Chung-Ming Own

2014-01-01T23:59:59.000Z

279

From proton conductive nanowires to nanofuel cells: A powerful candidate for generating electricity for self-powered nanosystems  

Science Journals Connector (OSTI)

The likely goal of nanotechnology is the integration of individual nanodevices into a nanosystem, which includes the nanodevice(s), power harvesting unit, data processing logic system, and possibly wireless co...

Caofeng Pan; Jun Luo; Jing Zhu

2011-11-01T23:59:59.000Z

280

Physical layer-aware wireless link layer protocols  

E-Print Network [OSTI]

With wireless devices becoming ubiquitous, the problem of designing high performance and reliable wireless networks is of great importance today. Wireless links are characterized by a rapidly varying channel, requiring ...

Vutukuru, Mythili

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Technology Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Energy Efficiency & Renewable and Energy - Commercialization Energy Efficiency & Renewable and Energy - Commercialization Deployment SBIR/STTR - Small Business Innovation Research and Small Business Technology Transfer USEFUL LINKS Contract Opportunities: FBO.gov FedConnect.net Grant Opportunities DOE Organization Chart Association of University Technology Managers (AUTM) Federal Laboratory Consortium (FLC) Feedback Contact us about Tech Transfer: Mary.McManmon@science.doe.gov Mary McManmon, 202-586-3509 link to Adobe PDF Reader link to Adobe Flash player Licensing Guide and Sample License The Technology Transfer Working Group (TTWG), made up of representatives from each DOE Laboratory and Facility, recently created a Licensing Guide and Sample License [762-KB PDF]. The Guide will serve to provide a general understanding of typical contract terms and provisions to help reduce both

282

Abstract --A wireless strain sensor system has been designed for human motion detection. The amorphous carbon strain  

E-Print Network [OSTI]

Abstract -- A wireless strain sensor system has been designed for human motion detection sensing technologies, with benefits of miniaturization and low power consumption, have gained dramatic-built sputter system at 150-W power for a period of 8 hours. The chamber pressure was maintained at 35 m

Chiao, Jung-Chih

283

Energy-efficient wireless communication In this chapter we present an energy-efficient highly adaptive network  

E-Print Network [OSTI]

Energy-efficient wireless communication In this chapter we present an energy-efficient highly substantial research in the hardware aspects of mobile communications energy-efficiency, such as low-power electronics, power-down modes, and energy efficient modulation. However, due to fundamental physical

Havinga, Paul J.M.

284

Energy-aware Cross-layer Burst Buffering for Wireless Communication  

E-Print Network [OSTI]

of the device battery. A big contributor to this energy consumption is the power hungry wireless network interface. We leverage a measurement kit to perform accurate physical energy consumption measure- ments uplink data, from real world traces of Facebook and Skype, with significant energy saving compared

285

Minimum energy decentralized estimation in a wireless sensor network with correlated sensor noises  

Science Journals Connector (OSTI)

Consider the problem of estimating an unknown parameter by a sensor network with a fusion center (FC). Sensor observations are corrupted by additive noises with an arbitrary spatial correlation. Due to bandwidth and energy limitation, each sensor is ... Keywords: decentralized estimation, energy efficiency, power control, wireless sensor networks

Alexey Krasnopeev; Jin-Jun Xiao; Zhi-Quan Luo

2005-09-01T23:59:59.000Z

286

Demo Abstract: Wireless Sensor Network for Substation Monitoring: Design and Deployment  

E-Print Network [OSTI]

Demo Abstract: Wireless Sensor Network for Substation Monitoring: Design and Deployment Asis-Transmissions & Substations 9625 Research Drive Charlotte, NC 28262 {lvanderz,birodriguez} @epri.com Ralph McKosky, Joseph in a substation for monitoring the health of power subsystems such as circuit breakers, trans- formers

Nasipuri, Asis

287

EECS: An Energy Efficient Clustering Scheme in Wireless Sensor , Chengfa Li1  

E-Print Network [OSTI]

' limited power, innovative techniques that im- prove energy efficiency to prolong the network lifetime lifetime greatly with a chain topology. But the delay is signif- icant although the energy is savedEECS: An Energy Efficient Clustering Scheme in Wireless Sensor Networks Mao Ye1 , Chengfa Li1

Wu, Jie

288

Energy-Efficient Protocols for Wireless Networks with Adaptive MIMO Capabilities  

E-Print Network [OSTI]

of a power-aware routing (PAR) scheme that selects minimum-energy end-to-end paths. Our adaptive designs (see Krunz et. al [5] for a survey)1 , some of which are aimed at energy conservation (e.g., Agarwal etEnergy-Efficient Protocols for Wireless Networks with Adaptive MIMO Capabilities Mohammad Z. Siam

Krunz, Marwan M.

289

Low Cost Monitoring and Intruders Detection using Wireless Video Sensor Networks  

E-Print Network [OSTI]

a serious challenge to wireless video sensor networks of weak computation and battery power. In this paper the efficiency of our approach through theoretical analysis and demonstrate the benefits of our scheduling of low capacity (resolution, processing, and storage) of a same or similar type can be deployed

Paris-Sud XI, Université de

290

HIERARCHICAL CENSORING FOR DISTRIBUTED DETECTION IN WIRELESS SENSOR Neal Patwari and Alfred O. Hero III  

E-Print Network [OSTI]

.1. Energy Constraint Energy is of primary concern in wireless sensor networks [4][5][6]. In most will require aggressive energy limitation. Equivalently, given a battery size, minimizing energy consumption maximizes system lifetime. If energy consumption can be sufficiently reduced, solar power or energy

Patwari, Neal

291

Abstract--Although wireless microsensors can add performance-enhancing and energy-saving intelligence to  

E-Print Network [OSTI]

receiver coils, however, capture a small fraction of the magnetic energy available, so coupling factors (k more power. Resonant-based bridges [8] invest energy for this purpose, except conversion efficiencyAbstract--Although wireless microsensors can add performance-enhancing and energy

Rincon-Mora, Gabriel A.

292

A Wideband Body-Enabled Millimeter-Wave Transceiver for Wireless Network-an-Chip  

E-Print Network [OSTI]

A Wideband Body-Enabled Millimeter-Wave Transceiver for Wireless Network-an-Chip Xinmin Yu, Suman-A highly energy-efficient on-chip communication network is crucial for the development of future multi Network-on-Chip (WiNoC) architecture. In order to reduce the power consumption of the transceiver, body

Pande, Partha Pratim

293

Biologically-Inspired Adaptive Data Aggregation for Multi-Modal Wireless Sensor Networks  

E-Print Network [OSTI]

that BiSNET allows sensor nodes to autonomously adapt their duty cycle intervals for power efficiency. Introduction Multi-modal wireless sensor networks (MWSNs) face several challenges1 . The first challenge is autonomy. Since sensor nodes can be deployed in an unattended area (e.g., forest and ocean) or physically

Suzuki, Jun

294

High flux heat transfer in a target environment  

E-Print Network [OSTI]

High flux heat transfer in a target environment T. Davenne High Power Targets Group Rutherford Valid for: Consider turbulent heat transfer in a 1.5mm diameter pipe ­ Dittus Boelter correlation Achenbach correlation for heat transfer in a packed bed of spheres Max power density for a sphere

McDonald, Kirk

295

Low-Cost Wireless Sensors for Building Monitoring Applications...  

Broader source: Energy.gov (indexed) [DOE]

Low-Cost Wireless Sensors for Building Monitoring Applications Low-Cost Wireless Sensors for Building Monitoring Applications Lead Performer: Oak Ridge National Laboratory - Oak...

296

Electromagnetic Interference in Wireless Communications: Behavioral-Level Simulation  

E-Print Network [OSTI]

Electromagnetic Interference in Wireless Communications: Behavioral-Level Simulation Approach in electromagnetic interference (EMI) modeling and simulation for modern and future wireless communication systems

Loyka, Sergey

297

Automation World Features New White Paper on Wireless Security...  

Broader source: Energy.gov (indexed) [DOE]

Automation World Features New White Paper on Wireless Security Automation World Features New White Paper on Wireless Security The April 2009 issue of Automation World magazine...

298

ISA Approves Standard for Wireless Automation in Process Control...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ISA Approves Standard for Wireless Automation in Process Control Applications ISA Approves Standard for Wireless Automation in Process Control Applications On September 9, the...

299

EM's Laboratory Supports Testing Wireless Technology in Secure...  

Broader source: Energy.gov (indexed) [DOE]

Laboratory Supports Testing Wireless Technology in Secure Environment EM's Laboratory Supports Testing Wireless Technology in Secure Environment January 29, 2014 - 12:00pm Addthis...

300

Implementation of Campus-wide Wireless Network Services using ATM, Virtual LANs, and Wireless Basestations  

E-Print Network [OSTI]

Implementation of Campus-wide Wireless Network Services using ATM, Virtual LANs, and Wireless of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign 405 North Mathews Ave Urbana, IL 61801 Abstract-A campus-wide wireless LAN has been imple- mented that combines the scalability

Lockwood, John W.

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Closing the Loop over Wireless Networks:Closing the Loop over Wireless Networks: Fundamentals and Applications  

E-Print Network [OSTI]

Wireless Networks: Fundamentals and Applications Karl H. Johansson Electrical Engineering, Royal Institute4/9/2008 1 Closing the Loop over Wireless Networks:Closing the Loop over Wireless Networks: Fundamentals and Applications Karl H. Johansson Electrical Engineering, Royal Institute of Technology Stockholm

Johansson, Karl Henrik

302

Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth Monitoring  

E-Print Network [OSTI]

Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth Monitoring Dr. Jerome P. Lynch Department of Civil and Environmental Engineering Department of Electrical of Michigan Slide #2 8/12/2012 · Introduction · Hardware design of wireless sensors: ­ Commercial and academic

303

Content adaptivity in wireless web access  

Science Journals Connector (OSTI)

While the demand for wireless access to web-based systems increases, it becomes apparent that the design of most systems does not support the use of small screen end-devices such as PDAs or mobile phones. However, enabling wireless access should ... Keywords: adaptivity, cohesion preorder, conceptual modelling, content adaptation, internet, media types, mobile clients, mobile communications, proximity values, web-based systems, wireless access

Klaus-Dieter Schewe; Kinshuk; Tiong Goh

2004-09-01T23:59:59.000Z

304

THE PLATFORMS ENABLING WIRELESS  

E-Print Network [OSTI]

require that they be battery powered. They are complemented by a hand- ful of more advanced sensors, in TinyOS [5], a special- ized component model exploits advanced compiler technology to simultaneously through high-level data aggregation, analysis, and storage nodes (see Figure 1). This tiered architecture

Gao, Jie

305

Energy Saving Methods in Wireless Sensor Networks.  

E-Print Network [OSTI]

?? To predict the lifetime of wireless sensor networks before their installation is an important concern. The IEEE 802.15.4 standard is specifically meant to support… (more)

JAWAD ALI, SYED

2008-01-01T23:59:59.000Z

306

Wireless System Considerations When Implementing NERC Critical...  

Broader source: Energy.gov (indexed) [DOE]

American Electric Reliability Corporation (NERC) Critical Infrastructure Protection (CIP) Standards (CIP-002 through CIP-009). The increased use of wireless technologies and...

307

Wireless Sensors Improve Data Center Efficiency  

Broader source: Energy.gov [DOE]

Case study bulletin describes how to improve data center energy efficiency for wireless sensors, and how to use that information to manage the data center.

308

INL Testing of Wireless Charging Systems  

Broader source: Energy.gov (indexed) [DOE]

- Paper clips - Soda can - Aluminum foil - Rebar (38") - Coins - Steel toe shoe - CD ROM disk - many more... Milestones Completed : Testing of Evatran's PLUGLESS wireless...

309

TCPL: A Defense against wormhole attacks in wireless sensor networks  

SciTech Connect (OSTI)

Do In this paper presents recent advances in technology have made low-cost, low-power wireless sensors with efficient energy consumption. A network of such nodes can coordinate among themselves for distributed sensing and processing of certain data. For which, we propose an architecture to provide a stateless solution in sensor networks for efficient routing in wireless sensor networks. This type of architecture is known as Tree Cast. We propose a unique method of address allocation, building up multiple disjoint trees which are geographically inter-twined and rooted at the data sink. Using these trees, routing messages to and from the sink node without maintaining any routing state in the sensor nodes is possible. In this paper, we introduce the wormhole attack, a severe attack in ad hoc networks that is particularly challenging to defend against. The wormhole attack is possible even if the attacker has not compromised any hosts and even if all communication provides authenticity and confidentiality. In the wormhole attack, an attacker records packets (or bits) at one location in the network, tunnels them to another location, and retransmits them there into the network. The wormhole attack can form a serious threat in wireless networks, especially against many sensor network routing protocols and location-based wireless security systems. For example, most existing ad hoc network routing protocols, without some mechanism to defend against the wormhole attack, would be unable to find routes longer than one or two hops, severely disrupting communication. We present a new, general mechanism, called packet leashes, for detecting and thus defending against wormhole attacks, and we present a specific protocol, called TIK, that implements leashes.

Kumar, K. E. Naresh [PG Student, Dept of Computer Science and Engineering, KBNCE, Gulbarga, Karnataka (India); Waheed, Mohd. Abdul [Asst. Professor, Dept of Computer Science and Engineering, KBNCE, Gulbarga, Karnataka (India); Basappa, K. Kari [Professor, Dept of E and CE, Dayanand College of Engineering, Banglore, Karnataka (India)

2010-10-26T23:59:59.000Z

310

Electron Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 3 Pierre Kennepohl1,2 and Edward Solomon1* 1Department of Chemistry, Stanford University, Stanford, CA 94305 Electron transfer, or the act of moving an electron from one place to another, is amongst the simplest of chemical processes, yet certainly one of the most critical. The process of efficiently and controllably moving electrons around is one of the primary regulation mechanisms in biology. Without stringent control of electrons in living organisms, life could simply not exist. For example, photosynthesis and nitrogen fixation (to name but two of the most well-known biochemical activities) are driven by electron transfer processes. It is unsurprising, therefore, that much effort has been placed on understanding the fundamental principles that control and define the simple act of adding and/or removing electrons from chemical species.

311

TECHNOLOGY TRANSFER  

Broader source: Energy.gov (indexed) [DOE]

404-NOV. 1, 2000 404-NOV. 1, 2000 TECHNOLOGY TRANSFER COMMERCIALIZATION ACT OF 2000 VerDate 11-MAY-2000 04:52 Nov 16, 2000 Jkt 089139 PO 00000 Frm 00001 Fmt 6579 Sfmt 6579 E:\PUBLAW\PUBL404.106 APPS27 PsN: PUBL404 114 STAT. 1742 PUBLIC LAW 106-404-NOV. 1, 2000 Public Law 106-404 106th Congress An Act To improve the ability of Federal agencies to license federally owned inventions. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT TITLE. This Act may be cited as the ''Technology Transfer Commer- cialization Act of 2000''. SEC. 2. FINDINGS. The Congress finds that- (1) the importance of linking our unparalleled network of over 700 Federal laboratories and our Nation's universities with United States industry continues to hold great promise

312

Analysis of a ConeBased Distributed Topology Control Algorithm for Wireless Multihop Networks  

E-Print Network [OSTI]

[1], network protocols that min­ imize energy consumption are key to the successful usage of wireless in the smallest symmetric graph G# con­ taining all edges (u, v) such that u can communicate with v using power pu is R, i.e. p(R) = P . If every node transmits with power P , then we have an induced graph GR = (V, E

Li, Li Erran

313

Hydrodynamics, heat transfer and flow boiling instabilities in microchannels   

E-Print Network [OSTI]

Boiling in microchannels is a very efficient mode of heat transfer with high heat and mass transfer coefficients achieved. Less pumping power is required for two-phase flows than for single-phase liquid flows to achieve ...

Barber, Jacqueline Claire

2010-01-01T23:59:59.000Z

314

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 25, NO. 4, APRIL 2010 981 Power Management of Wideband Code Division  

E-Print Network [OSTI]

of the RFPA for various RF transmit power levels. For example, for data transmission (high load), a WCDMA RFPA (RFPA) is the most power- consuming component in wireless handsets [1], [2]. With increased data rates affected by the RF load impedance and the supply voltage [5], [6]. An RFPA power management architecture

Popovic, Zoya

315

NETL: Tech Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Licensing & Technology Transfer Available Technologies Partnerships and Licensing Success Stories Contact Us Technology transfer is the process of transferring new technologies...

316

E-Print Network 3.0 - adapting wireless technology Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

possible. A wireless sensor network normally comes a large area... in wireless sensor networks The rapid progress of wireless communication and embedded micro-sensing MEMS... ....

317

A Study of Energy-efficient Routing Supporting Coordinated Sleep Scheduling in Wireless Ad Hoc Networks.  

E-Print Network [OSTI]

??A wireless ad hoc network is a collection of wireless computing devices that self-configure to form a network independently of any fixed infrastructure. Many wireless… (more)

Lou, Chong

2015-01-01T23:59:59.000Z

318

Accelerating the transfer in Technology Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Accelerating the transfer in Technology Transfer Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: Dec. 2014 - Jan. 2015...

319

Wireless Sensor Networks for Structural Health Monitoring by Sukun Kim  

E-Print Network [OSTI]

Wireless Sensor Networks (WSN). The project is targeting a deployment on the Golden Gate Bridge. Ambient

California at Berkeley, University of

320

Wireless Network Capacity Management: A Real Options Approach  

E-Print Network [OSTI]

capacity, market price of risk, investment timing option 1 Introduction Wireless networks are now regarded

Forsyth, Peter A.

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Load Balancing in Wireless Sensor Networks using Kirchhoff's Voltage Law  

E-Print Network [OSTI]

Load Balancing in Wireless Sensor Networks using Kirchhoff's Voltage Law Stavros Toumpis Electrical balancing in wireless networks with a single class of traffic, focusing our attention on an important example, i.e., Wireless Sensor Networks. The analysis is based on the Wireless Minimum Cost Problem

Toumpis, Stavros

322

NPTEL Syllabus Advanced 3G and 4G Wireless Mobile  

E-Print Network [OSTI]

NPTEL Syllabus Advanced 3G and 4G Wireless Mobile Communications - Video course COURSE OUTLINE in this area, will also find this course revealing. The treatment would look at current and upcoming wireless communications technologies for broadband wireless access. COURSE DETAIL Sl. No Topic No. of Lectures 1 Wireless

Jagannatham, Aditya K.

323

Monitoring Energy Consumption In Wireless Sensor Networks  

E-Print Network [OSTI]

Monitoring Energy Consumption In Wireless Sensor Networks Matthias Witt, Christoph Weyer, it may impair the ability of the sensor network to function. Therefore, minimizing energy consumption energy consumption in both standby and active modes is the basis of wireless networks. Energy preserving

Turau, Volker

324

a Wireless Sensor Network for Environmental Monitoring  

E-Print Network [OSTI]

transmitters #12;Sample sensors: #12;Sample sensors: PAR: Photosynthetically Active (solar) Radiation sensora Wireless Sensor Network for Environmental Monitoring a Wireless Sensor Network for Environmental technology: a truly self configurable, low-cost, maintenance-free, ad-hoc sensor network (not based on Zig

Gburzynski, Pawel

325

Wireless link design using a patch antenna  

SciTech Connect (OSTI)

A wireless link was designed using a patch antenna. In the process, several different models were tested. Testing proved a patch antenna was a viable solution for building a wireless link within the design specifications. Also, this experimentation provided a basis for future patch antenna design.

Hall, E

2000-08-11T23:59:59.000Z

326

Solar energy power generation system  

SciTech Connect (OSTI)

A solar energy power generation system is described which consists of: (a) means for collecting and concentrating solar energy; (b) heat storage means; (c) Stirling engine means for producing power; (d) first heat transfer means for receiving the concentrated solar energy and for transferring heat to the heat storage means; and (e) second heat transfer means for controllably transferring heat from the storage means to the Stirling engine means and including a discharge heat pipe means for transferring heat to the Stirling engine means and further including means for inserting and withdrawing the discharge heat pipe means into and out of the heat storage means.

Nilsson, J.E.; Cochran, C.D.

1986-05-06T23:59:59.000Z

327

Wireless Sensor Network for Advanced Energy Management Solutions  

SciTech Connect (OSTI)

Eaton has developed an advanced energy management solution that has been deployed to several Industries of the Future (IoF) sites. This demonstrated energy savings and reduced unscheduled downtime through an improved means for performing predictive diagnostics and energy efficiency estimation. Eaton has developed a suite of online, continuous, and inferential algorithms that utilize motor current signature analysis (MCSA) and motor power signature analysis (MPSA) techniques to detect and predict the health condition and energy usage condition of motors and their connect loads. Eaton has also developed a hardware and software platform that provided a means to develop and test these advanced algorithms in the field. Results from lab validation and field trials have demonstrated that the developed advanced algorithms are able to detect motor and load inefficiency and performance degradation. Eaton investigated the performance of Wireless Sensor Networks (WSN) within various industrial facilities to understand concerns about topology and environmental conditions that have precluded broad adoption by the industry to date. A Wireless Link Assessment System (WLAS), was used to validate wireless performance under a variety of conditions. Results demonstrated that wireless networks can provide adequate performance in most facilities when properly specified and deployed. Customers from various IoF expressed interest in applying wireless more broadly for selected applications, but continue to prefer utilizing existing, wired field bus networks for most sensor based applications that will tie into their existing Computerized Motor Maintenance Systems (CMMS). As a result, wireless technology was de-emphasized within the project, and a greater focus placed on energy efficiency/predictive diagnostics. Commercially available wireless networks were only utilized in field test sites to facilitate collection of motor wellness information, and no wireless sensor network products were developed under this project. As an outgrowth of this program, Eaton developed a patented energy-optimizing drive control technology that is complementary to a traditional variable frequency drives (VFD) to enable significant energy savings for motors with variable torque applications, such as fans, pumps, and compressors. This technology provides an estimated energy saving of 2%-10% depending on the loading condition, in addition to the savings obtained from a traditional VFD. The combination of a VFD with the enhanced energy-optimizing controls will provide significant energy savings (10% to 70% depending on the load and duty cycle) for motors that are presently connected with across the line starters. It will also provide a more favorable return on investment (ROI), thus encouraging industries to adopt VFDs for more motors within their facilities. The patented technology is based on nonintrusive algorithms that estimate the instantaneous operating efficiency and motor speed and provide active energy-optimizing control of a motor, using only existing voltage and current sensors. This technology is currently being commercialized by Eaton’s Industrial Controls Division in their next generation motor control products. Due to the common nonintrusive and inferential nature of various algorithms, this same product can also include motor and equipment condition monitoring features, providing the facility owner additional information to improve process uptime and the associated energy savings. Calculations estimated potential energy savings of 261,397GWh/Yr ($15.7B/yr), through retrofitting energy-optimizing VFDs into existing facilities, and incorporating the solution into building equipment sold by original equipment manufacturers (OEMs) and installed by mechanical and electrical contractors. Utilizing MCSA and MPSA for predictive maintenance (PM) of motors and connected equipment reduces process downtime cost and the cost of wasted energy associated with shutting down and restarting the processes. Estimated savings vary depending on the industry segment and equi

Peter J. Theisen; Bin Lu, Charles J. Luebke

2009-09-23T23:59:59.000Z

328

ISA Approves Standard for Wireless Automation in Process Control  

Broader source: Energy.gov (indexed) [DOE]

ISA Approves Standard for Wireless Automation in Process Control ISA Approves Standard for Wireless Automation in Process Control Applications ISA Approves Standard for Wireless Automation in Process Control Applications On September 9, the Standards and Practices Board of the International Society for Automation (ISA) approved the ISA-100.11a wireless standard, "Wireless Systems for Industrial Automation: Process Control and Related Applications," making it an official ISA standard. ISA Approves Standard for Wireless Automation in Process Control Applications More Documents & Publications DOE/OE National SCADA Test Bed Fiscal Year 2009 Work Plan Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards Control Systems Security Standards: Accomplishments And Impacts

329

Building Technologies Office: Harmonization of Wireless Dimming Lighting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Harmonization of Harmonization of Wireless Dimming Lighting Controls Research Project to someone by E-mail Share Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Facebook Tweet about Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Twitter Bookmark Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Google Bookmark Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Delicious Rank Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on Digg Find More places to share Building Technologies Office: Harmonization of Wireless Dimming Lighting Controls Research Project on

330

2294 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 6, JUNE 2007 Wireless Profiled TCP Performance over  

E-Print Network [OSTI]

2294 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 6, JUNE 2007 Wireless Profiled TCP Performance over Integrated Wireless LANs and Cellular Networks Humphrey Rutagemwa, Student Member, IEEE-- An analytical framework for studying the per- formance of Wireless Profiled TCP (WP-TCP) flows over

Shen, Xuemin "Sherman"

331

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. XX, NO. XX, MONTH 2009 1 What is the Right Model for Wireless Channel  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. XX, NO. XX, MONTH 2009 1 What is the Right Model for Wireless Channel Interference? Aravind Iyer, Catherine Rosenberg and Aditya Karnik Abstract--In wireless communications, the desired wireless signal is typically decoded by treating the sum of all the other on- going

Rosenberg, Catherine P.

332

Automated Operating Procedures for Transfer Limits  

E-Print Network [OSTI]

Automated Operating Procedures for Transfer Limits Final Project Report Power Systems Engineering · Illinois · Iowa State · Texas A&M · Washington State · Wisconsin Automated Operating Procedures

333

Basic Concepts in Phase-Transfer Catalysis  

Science Journals Connector (OSTI)

Phase-transfer catalysis (PTC) is a powerful tool in many areas of chemistry. It is a technique for conducting reactions between two or more reagents in two or more phases, when reaction is inhibited because t...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

334

Advanced Heat Transfer Fluids and Novel Thermal Storage Concepts...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Systems Lehigh University: Novel Thermal Storage Technologies for Concentrating Solar Power Generation Terrafore: Heat Transfer and Latent Heat Storage in Inorganic Molten...

335

Wireless Fading Channel Models: From Classical to Stochastic Differential Equations  

SciTech Connect (OSTI)

The wireless communications channel constitutes the basic physical link between the transmitter and the receiver antennas. Its modeling has been and continues to be a tantalizing issue, while being one of the most fundamental components based on which transmitters and receivers are designed and optimized. The ultimate performance limits of any communication system are determined by the channel it operates in. Realistic channel models are thus of utmost importance for system design and testing. In addition to exponential power path-loss, wireless channels suffer from stochastic short term fading (STF) due to multipath, and stochastic long term fading (LTF) due to shadowing depending on the geographical area. STF corresponds to severe signal envelope fluctuations, and occurs in densely built-up areas filled with lots of objects like buildings, vehicles, etc. On the other hand, LTF corresponds to less severe mean signal envelope fluctuations, and occurs in sparsely populated or suburban areas. In general, LTF and STF are considered as superimposed and may be treated separately. Ossanna was the pioneer to characterize the statistical properties of the signal received by a mobile user, in terms of interference of incident and reflected waves. His model was better suited for describing fading occurring mainly in suburban areas (LTF environments). It is described by the average power loss due to distance and power loss due to reflection of signals from surfaces, which when measured in dB's give rise to normal distributions, and this implies that the channel attenuation coefficient is log-normally distributed. Furthermore, in mobile communications, the LTF channel models are also characterized by their special correlation characteristics which have been reported. Clarke introduced the first comprehensive scattering model describing STF occurring mainly in urban areas. An easy way to simulate Clarke's model using a computer simulation is described. This model was later expanded to three-dimensions (3D) by Aulin. An indoor STF was introduced. Most of these STF models provide information on the frequency response of the channel, described by the Doppler power spectral density (DPSD). Aulin presented a methodology to find the Doppler power spectrum by computing the Fourier transform of the autocorrelation function of the channel impulse response with respect to time. A different approach, leading to the same Doppler power spectrum relation was presented by Gans. These STF models suggest various distributions for the received signal amplitude such as Rayleigh, Rician, or Nakagami. Models based on autoregressive and moving averages (AR) are proposed. However, these models assume that the channel state is completely observable, which in reality is not the case due to additive noise, and requires long observation intervals. First order Markov models for Raleigh fading have been proposed, and the usefulness of a finite-state Markov channel model is argued. Mobile-to-mobile (or ad hoc) wireless networks comprise nodes that freely and dynamically self-organize into arbitrary and/or temporary network topology without any fixed infrastructure support. They require direct communication between a mobile transmitter and a mobile receiver over a wireless medium. Such mobile-to-mobile communication systems differ from the conventional cellular systems, where one terminal, the base station, is stationary, and only the mobile station is moving. As a consequence, the statistical properties of mobile-to-mobile links are different from cellular ones. Copious ad hoc networking research exists on layers in the open system interconnection (OSI) model above the physical layer. However, neglecting the physical layer while modeling wireless environment is error prone and should be considered more carefully. The experimental results show that the factors at the physical layer not only affect the absolute performance of a protocol, but because their impact on different protocols is nonuniform, it can even change the relative ranking among protocols for the sa

Olama, Mohammed M [ORNL; Djouadi, Seddik M [ORNL; Charalambous, Prof. Charalambos [University of Cyprus

2010-01-01T23:59:59.000Z

336

Technology Transfer Overview | Department of Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Services » Technology Transfer and Procurement » Technology Services » Technology Transfer and Procurement » Technology Transfer & Intellectual Property » Technology Transfer Overview Technology Transfer Overview Through strategic investments in science and technology, the U.S. Department of Energy (DOE) helps power and secure America's future. DOE's capabilities, and the innovations it supports, help ensure the country's role as a leader in science and technology. In particular, technology transfer supports the maturation and deployment of DOE discoveries, providing ongoing economic, security and environmental benefits for all Americans. "Technology transfer" refers to the process by which knowledge, intellectual property, or capabilities developed at the Department of Energy's National Laboratories, single-purpose research facilities, plants,

337

Multimode power processor  

DOE Patents [OSTI]

In one embodiment, a power processor which operates in three modes: an inverter mode wherein power is delivered from a battery to an AC power grid or load; a battery charger mode wherein the battery is charged by a generator; and a parallel mode wherein the generator supplies power to the AC power grid or load in parallel with the battery. In the parallel mode, the system adapts to arbitrary non-linear loads. The power processor may operate on a per-phase basis wherein the load may be synthetically transferred from one phase to another by way of a bumpless transfer which causes no interruption of power to the load when transferring energy sources. Voltage transients and frequency transients delivered to the load when switching between the generator and battery sources are minimized, thereby providing an uninterruptible power supply. The power processor may be used as part of a hybrid electrical power source system which may contain, in one embodiment, a photovoltaic array, diesel engine, and battery power sources.

O'Sullivan, George A. (Pottersville, NJ); O'Sullivan, Joseph A. (St. Louis, MO)

1999-01-01T23:59:59.000Z

338

A review of wireless communications for smart grid  

Science Journals Connector (OSTI)

Abstract Smart grid is envisioned to meet the 21st century energy requirements in a sophisticated manner with real time approach by integrating the latest digital communications and advanced control technologies to the existing power grid. It will connect the global users through energy efficiency and awareness corridor. This paper presents a comprehensive review of Wireless Communications Technologies (WCTs) for implementation of smart grid in a systematic way. Various network attributes like internet protocol (IP) support, power usage, data rate etc. are considered to compare the communications technologies in smart grid context. Techniques suitable for Home Area Networks (HANs) like ZigBee, Bluetooth, Wi-Fi, 6LoWPAN and Z-Wave are discussed and compared in context of consumer concerns and network attributes. A similar approach in context of utilities concerns is adopted for wireless communications techniques for Neighborhood Area Networks (NANs) which include WiMAX and GSM based cellular standards. Smart grid applications, associated network issues and challenges are elaborated at the end.

Anzar Mahmood; Nadeem Javaid; Sohail Razzaq

2015-01-01T23:59:59.000Z

339

Bubble dynamics and boiling heat transfer : a study in the absence and in the presence of electric fields.  

E-Print Network [OSTI]

??Since boiling heat transfer affords a very effective means to transfer heat, it is implemented in numerous technologies and industries ranging from large power generation… (more)

Siedel, Samuel

2012-01-01T23:59:59.000Z

340

Wireless Sensors for Data Centers  

Broader source: Energy.gov (indexed) [DOE]

Proving Ground Proving Ground Wireless Sensors for Data Centers Kevin Powell |May 23 2012 | FEMP Technology Deployment Working Group 9,624 Owned and Leased Assets 30% Metered Energy Reduction, by 2015 NET ZERO In New Construction and Major Remodels, by 2030 EISA 2007 GSA's Green Proving Ground The Green Proving Ground aims to leverage innovative technologies to accelerate GSA's sustainability goals. Program Focus: Identify, test and evaluate innovative technologies to: * Drive innovation in environmental performance in federal buildings * Help lead market transformation through deployment of new technologies. * Reduce GSA operational costs How Does It Work? Green Proving Ground

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Wireless Sensors for Data Centers  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Proving Ground Proving Ground Wireless Sensors for Data Centers Kevin Powell |May 23 2012 | FEMP Technology Deployment Working Group 9,624 Owned and Leased Assets 30% Metered Energy Reduction, by 2015 NET ZERO In New Construction and Major Remodels, by 2030 EISA 2007 GSA's Green Proving Ground The Green Proving Ground aims to leverage innovative technologies to accelerate GSA's sustainability goals. Program Focus: Identify, test and evaluate innovative technologies to: * Drive innovation in environmental performance in federal buildings * Help lead market transformation through deployment of new technologies. * Reduce GSA operational costs How Does It Work? Green Proving Ground

342

Chapter 4 - Low tech wireless hacking  

Science Journals Connector (OSTI)

Publisher Summary This chapter presents the reader with a variety of attacks and countermeasures for wireless technologies in the home and office by applying a technical approach to low tech hacking. These attacks fall in five primary categories: denial of service and availability, backdoors and cracks, rogue exploits, default vulnerabilities, and attacks on specific security tools. Wireless is a broad topic, with a variety of implementations throughout the world and in every facet of life. Wireless ploys bestowed range from disrupting municipal Wi-Fi with an antenna attack to bypassing access control systems with simple spoofing attacks. In the great world of wireless hacking, there are even a few low tech hacks that can bypass very specific higher tech security mechanisms. Several ways of bypassing media access control (MAC) filtering, port security, and even some of the newer network access control (NAC)-based controls are also discussed. It does no good to hermetically seal the windows in an organization if the doors are left wide open. But that is precisely what many organizations are doing today when they neglect to secure their wireless communications systems. Organizations habitually overlook the security of their wireless communications because they cannot see it. If they cannot see it, then they presume that no one else can either, and it is safe. However, that presumption cannot be farther from the truth. This chapter is dedicated to thwarting wireless systems of all types, armed with everything from a bobby pin to a yagi antenna. The goal of this chapter is to enable readers to “see” wireless, by explaining how it works, describing different types of devices that share common mediums and functionality, and offering clear explanations of security vulnerabilities using real-world examples. The attacks included are part of the low tech hacking subgenre of wireless assaults.

Jack Wiles; Terry Gudaitis; Jennifer Jabbusch; Russ Rogers; Sean Lowther

2012-01-01T23:59:59.000Z

343

Wireless Sensors Improve Data Center Efficiency  

Broader source: Energy.gov (indexed) [DOE]

Wireless Sensor Wireless Sensor Technology Overview In most buildings, space conditions are controlled and coordinated by a building automation system (BAS). A BAS can provide temperature visualization information with dashboard displays through a person-machine interface (PMI). However, in most data centers, space conditioning is achieved with multiple, independently-operating cooling units located within the space. Unfortunately, these data centers do not have adequate auto- mation systems or visualization tools to monitor or manage these cooling units efficiently. In 2001, an emerging technology was demonstrated at University of California, Davis by Dr. Raju Pandey that "meshed" temperature sensors into a network using wireless fidelity (Wi-Fi

344

EM threat analysis for wireless systems.  

SciTech Connect (OSTI)

Modern digital radio systems are complex and must be carefully designed, especially when expected to operate in harsh propagation environments. The ability to accurately predict the effects of propagation on wireless radio performance could lead to more efficient radio designs as well as the ability to perform vulnerability analyses before and after system deployment. In this report, the authors--experts in electromagnetic (EM) modeling and wireless communication theory--describe the construction of a simulation environment that is capable of quantifying the effects of wireless propagation on the performance of digital communication.

Burkholder, R. J. (Ohio State University Electroscience Laboratory); Mariano, Robert J.; Schniter, P. (Ohio State University Electroscience Laboratory); Gupta, I. J. (Ohio State University Electroscience Laboratory)

2006-06-01T23:59:59.000Z

345

E-Print Network 3.0 - active power flow Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Energy Storage, Conversion and Utilization 8 IEEE INFOCOM 2000 1 Effortlimited Fair (ELF) Scheduling for Wireless Summary: on each flow using a per-flow power factor setting. The...

346

Device for thermal transfer and power generation  

DOE Patents [OSTI]

A system is provided. The system includes a device that includes top and bottom thermally conductive substrates positioned opposite to one another, wherein a top surface of the bottom thermally conductive substrate is substantially atomically flat and a thermal blocking layer disposed between the top and bottom thermally conductive substrates. The device also includes top and bottom electrodes separated from one another between the top and bottom thermally conductive substrates to define a tunneling path, wherein the top electrode is disposed on the thermal blocking layer and the bottom electrode is disposed on the bottom thermally conductive substrate.

Weaver, Stanton Earl (Northville, NY); Arik, Mehmet (Niskayuna, NY)

2011-04-19T23:59:59.000Z

347

4264 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 8, NO. 8, AUGUST 2009 A Cross-Layer Approach to Energy Efficiency for  

E-Print Network [OSTI]

transfer delay and energy conservation. Index Terms--MIMO, energy conservation, spare capacity, adaptive4264 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 8, NO. 8, AUGUST 2009 A Cross-Layer Approach to Energy Efficiency for Adaptive MIMO Systems Exploiting Spare Capacity Hongseok Kim, Student

de Veciana, Gustavo

348

A Bandwidth-Based Power-Aware Routing Protocol with Low Route Discovery Overhead in Mobile Ad hoc Networks  

Science Journals Connector (OSTI)

......protocol, where the power consumed by listening to the transmission of a packet is represented...equipped with the IEEE 802.11b wireless device. Measuring the distance-to-bandwidth...equipped with the IEEE 802.11b wireless device. However, if a specific distance is......

Chuan-Chi Weng; Ching-Wen Chen; Chang-Jung Ku; Shiow-Fen Hwang

2010-09-01T23:59:59.000Z

349

[20:22 2003/9/25 DOWLA-CH12.tex] DOWLA: Handbook of RF and Wireless Technologies Page: 375 375400 TURBO CODES  

E-Print Network [OSTI]

without an FEC code, coded systems can afford to operate with a lower transmit power, transmit over longer[20:22 2003/9/25 DOWLA-CH12.tex] DOWLA: Handbook of RF and Wireless Technologies Page: 375 375 powerful types of forward-error-correcting channel codes. Included is not only a discus- sion

Valenti, Matthew C.

350

Data Dissemination with Ring-Based Index for Wireless Sensor Networks Wensheng Zhang, Guohong Cao and Tom La Porta  

E-Print Network [OSTI]

that the index-based scheme outperforms the external storage-based scheme, the DCS scheme, and the local storage and achieve load balance. 1. Introduction Recent advances in electronic and communication tech- nology have enabled the production of battery powered wireless sensor nodes. These nodes are capable of not only

Zhang, Wensheng

351

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 14, NO. 5, MAY 2004 195 A Novel EER Structure for Reducing Complexity  

E-Print Network [OSTI]

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 14, NO. 5, MAY 2004 195 A Novel EER Structure and restoration (EER) structure using the negative resistance class F power amplifier. Due to the extremely high in saturation mode. This characteristic is applied to the pro- posed EER. Using this technique, a limiter

Nam, Sangwook

352

1612 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 27, NO. 9, DECEMBER 2009 Multi-Transceiver Optical Wireless Spherical  

E-Print Network [OSTI]

such as frequent disruption of wireless communication links (intermittent connectivity) and the line-of-sight (LOS@rpi.edu, hellam@ecse.rpi.edu). Mehmet Bilgi and Murat Yuksel are with the University of Nevada - Reno, CSE-to-point links using high- powered lasers and relatively expensive components used in fiber-optical transmission

Yuksel, Murat

353

New and Underutilized Technology: Wireless Temperature Sensors | Department  

Broader source: Energy.gov (indexed) [DOE]

Wireless Temperature Sensors Wireless Temperature Sensors New and Underutilized Technology: Wireless Temperature Sensors October 4, 2013 - 4:45pm Addthis The following information outlines key deployment considerations for wireless temperature sensors within the Federal sector. Benefits Wireless thermostats are connected into a building automation system. Ease of adding temperature sensors in more zones allows for greater spatial resolution of zone temperatures, increasing confidence in control improvements through thermostat reset. Application Wireless temperature settings are applicable in most building categories. Key Factors for Deployment Ease of moving thermostats increases diagnostic capabilities in checking existing hard-wired thermostats. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are

354

Design and Power Management of Energy Harvesting Embedded Systems  

E-Print Network [OSTI]

America Princeton, NJ 08540 vijay@nec-labs.com Pai H. Chou University of California Irvine, CA 92697 factors such as the characteristics of the harvesting transducers, chemistry and capacity of the batteries, Design Keywords Energy harvesting, power management, wireless sensors, solar power 1. INTRODUCTION Energy

Chou, Pai H.

355

HELICASE DEPENDENT AMPLICATION transfer the DNA  

E-Print Network [OSTI]

STEP 1 STEP 2 STEP 3 HELICASE DEPENDENT AMPLICATION HELICASE DNA POLYMERASE transfer the DNA instrumentation. MOLECULAR BIOMARKERS MADE UP DNA or RNA STRANDS ARE A POWERFUL WEAPON IN DETECTING DISEASE. USING for sample preparation at the point to care using only hand generated power.... #12;

356

Wireless Environment LLC | Open Energy Information  

Open Energy Info (EERE)

Wireless Environment LLC Wireless Environment LLC Jump to: navigation, search Name Wireless Environment LLC Place Elyria, Ohio Product Wireless Environment designs light-emitting diode lighting products that it sells through a vehicle called "Mr. Beams." Coordinates 41.36768°, -82.105839° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.36768,"lon":-82.105839,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

357

US approves new uses for wireless technology  

Science Journals Connector (OSTI)

In a controversial move, the US Federal Communications Commission (FCC) has approved commercial use of ultrawideband technology, which promises faster and more secure wireless transmissions. UWB, which is currently used for such purposes as determining ...

L. D. Paulson

2002-05-01T23:59:59.000Z

358

Antenna beamforming for infrastructureless wireless networks  

E-Print Network [OSTI]

Our work studies the impact of antenna beamforming on the performance of infrastructureless wireless networks. Based on examination of the beampattern for a uniform circular antenna array (UCAA) utilizing beamforming under ...

Godoy, Elizabeth C

2007-01-01T23:59:59.000Z

359

Virtual infrastructure for wireless ad hoc networks  

E-Print Network [OSTI]

One of the most significant challenges introduced by ad hoc networks is coping with the unpredictable deployment, uncertain reliability, and erratic communication exhibited by emerging wireless networks and devices. The ...

Gilbert, Seth, 1976-

2007-01-01T23:59:59.000Z

360

Wireless Control: Opportunities and Challengespp g  

E-Print Network [OSTI]

Industrial control Home Network M i h bi i Surveillance Marine habitat mapping Lindhe & J, 2008 Environmental and reconfiguration · Robustness ­ No cable wear and tear ­ No connector failure Concerns about wireless networking

Johansson, Karl Henrik

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Efficient Agent Communication in Wireless Environments  

Science Journals Connector (OSTI)

In wireless environments, communication should be tailored to enable an efficient use of scarce and fluctuating data communication resources. In this chapter we consider software agent communication in such en...

Heikki Helin; Mikko Laukkanen

2005-01-01T23:59:59.000Z

362

3D face recognition with wireless transportation  

E-Print Network [OSTI]

In this dissertation, we focus on two related parts of a 3D face recognition system with wireless transportation. In the ?rst part, the core components of the system, namely, the feature extraction and classi?cation component, are introduced...

Zou, Le

2009-05-15T23:59:59.000Z

363

Wireless Relay Communications with Unmanned Aerial Vehicles  

E-Print Network [OSTI]

Pengcheng Zhan, Kai Yu, A. Lee Swindlehurst Abstract In this paper, we investigate a communication system vehicles, wireless relays, handoff algorithms Pengcheng Zhan is with ArrayComm LLC, 2025 Gateway Place

Swindlehurst, A. Lee

364

New and Emerging Energy Efficient Wireless Protocols New and Emerging Energy Efficient Wireless  

E-Print Network [OSTI]

New and Emerging Energy Efficient Wireless Protocols 1 of 12 New and Emerging Energy Efficient energy efficient wireless protocols. The benefits of each protocol are given, and then the different ways of conserving energy are compared. Key Words- Energy efficient protocols, energy efficiency, energy aware, low

Jain, Raj

365

Transferring Data at NERSC  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Data Transferring Data Advice and Overview NERSC provides many facilities for storing data and performing analysis. However, transfering data - whether over the wide area network...

366

Speech quality in wireless systems  

Science Journals Connector (OSTI)

Modern wireless communication systems require a very sophisticated design from the electrical as well as from the acoustical point of view. Since the maximum of functionality needs to be integrated in designs—getting smaller with every new generation—not much space is left for the acoustical components. In addition such sets typically are used in noisy environments. In order to provide a minimum of speech quality a careful design of the acoustical components as well as of the according electrical components is required. Very often there is a strong interaction between those. The presentation will describe the typical types of signal processing and acoustical designs used in such sets and will give methodologies on how to assess the speech quality relevant parameters of such sets. Measurements for optimizing the acoustical design will be described. In addition system evaluation procedures for nonlinear and time?variant signal processing are discussed.

Hans Wilhelm Gierlich; Winfried Krebber; Frank Kettler

1999-01-01T23:59:59.000Z

367

Funding Opportunity Announcement: Concentrating Solar Power:...  

Broader source: Energy.gov (indexed) [DOE]

Projects can address challenges in any technical system of the plant, including solar collectors, receivers and heat transfer fluids, thermal energy storage, power...

368

Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wireless Sensor Networks for Data Centers to someone by E-mail Wireless Sensor Networks for Data Centers to someone by E-mail Share Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Facebook Tweet about Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Twitter Bookmark Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Google Bookmark Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Delicious Rank Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Digg Find More places to share Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on

369

Building Technologies Office: Open-Standard Wireless Controllers for Water  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Open-Standard Wireless Open-Standard Wireless Controllers for Water Heaters Research Project to someone by E-mail Share Building Technologies Office: Open-Standard Wireless Controllers for Water Heaters Research Project on Facebook Tweet about Building Technologies Office: Open-Standard Wireless Controllers for Water Heaters Research Project on Twitter Bookmark Building Technologies Office: Open-Standard Wireless Controllers for Water Heaters Research Project on Google Bookmark Building Technologies Office: Open-Standard Wireless Controllers for Water Heaters Research Project on Delicious Rank Building Technologies Office: Open-Standard Wireless Controllers for Water Heaters Research Project on Digg Find More places to share Building Technologies Office: Open-Standard Wireless Controllers for Water Heaters Research Project on

370

ISA Approves Standard for Wireless Automation in Process Control  

Broader source: Energy.gov (indexed) [DOE]

ISA Approves Standard for Wireless Automation in Process Control ISA Approves Standard for Wireless Automation in Process Control Applications ISA Approves Standard for Wireless Automation in Process Control Applications September 22, 2009 - 1:28pm Addthis September 22, 2009 On September 9, the Standards and Practices Board of the International Society for Automation (ISA) approved the ISA-100.11a wireless standard, "Wireless Systems for Industrial Automation: Process Control and Related Applications," making it an official ISA standard. The standard is intended to provide secure, reliable wireless operation for monitoring, alerting, and control applications. It enables robustness with non-ISA-compliant legacy wireless systems, coexistence and interoperability with other wireless devices, and robustness in harsh industrial

371

Wireless Policy, Cyber Security, Information Technology Division, ITD  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Brookhaven Wireless Access Policy Brookhaven Wireless Access Policy Title: Deployment and Management of 802.11 and Related Wireless Standards Applicability: All Employees, Guests, System Administrators, and Management General Approved Technology Authentication Setting the Service Set Identifier (SSID) Exceptions Responsibilities of Requestor Responsibilities of the ITD WAP System Administrator Responsibility of Chief of Cyber Security Wireless Policy Definitions Standards-Based Management System (SBMS) Subject Area: Cyber Security, Unclassified Using Computing Resources (Steps 7-11 apply to BNL's wireless networks) General The purpose of the wireless policy and related standards and guidelines is to assure that Brookhaven National Laboratory's (BNL's) employees, guests, and contractors have access to a reliable, robust, and integrated wireless network, and to increase the security of the campus wireless network to the extent possible.

372

Radio frequency circuits for wireless receiver front-ends  

E-Print Network [OSTI]

The beginning of the 21st century sees great development and demands on wireless communication technologies. Wireless technologies, either based on a cable replacement or on a networked environment, penetrate our daily life more rapidly than ever...

Xin, Chunyu

2005-11-01T23:59:59.000Z

373

Wireless video applications in 3G and beyond  

Science Journals Connector (OSTI)

This article surveys wireless video applications that have been commercialized recently or are expected to go to market in 3G (and beyond) mobile networks, mainly covering error control technologies in view of "wireless video." We introduce several related ...

M. Etoh; T. Yoshimura

2005-08-01T23:59:59.000Z

374

ENERGY EFFICIENCY AND SECURITY FOR MULTIHOP WIRELESS NETWORKS  

E-Print Network [OSTI]

ENERGY EFFICIENCY AND SECURITY FOR MULTIHOP WIRELESS NETWORKS BY MATTHEW JEFFERSON MILLER B over wireless channels demands confidentiality and integrity. In the energy efficiency domain that marginal gains in battery energy density necessitate energy efficient protocols. In the security realm

Vaidya, Nitin

375

Comparing wireless flooding protocols using trace-based simulations  

Science Journals Connector (OSTI)

Most wireless multi-hop networks, such as ad hoc...networks and wireless sensor networks, need network-wide broadcasting, which is best done with a flooding protocol. In this article, we use ... test-bed network ...

Martin Jacobsson; Christian Rohner

2013-06-01T23:59:59.000Z

376

An energy efficient RF transceiver for wireless microsensor networks  

E-Print Network [OSTI]

A wireless microsensor network consists of a group of sensor nodes that are deployed remotely and used to relay sensing data to the end-user. Due to their remote deployment, large scale wireless sensor networks require a ...

Daly, Denis Clarke

2005-01-01T23:59:59.000Z

377

ISA Approves Standard for Wireless Automation in Process Control Applications  

Broader source: Energy.gov (indexed) [DOE]

ISA Approves Standard for Wireless Automation in Process Control Applications ISA Approves Standard for Wireless Automation in Process Control Applications September 22, 2009 On September 9, the Standards and Practices Board of the International Society for Automation (ISA) approved the ISA-100.11a wireless standard, "Wireless Systems for Industrial Automation: Process Control and Related Applications," making it an official ISA standard. The standard is intended to provide secure, reliable wireless operation for monitoring, alerting, and control applications. It enables robustness with non-ISA-compliant legacy wireless systems, coexistence and interoperability with other wireless devices, and robustness in harsh industrial environments. To meet the needs of industrial wireless users and operators of low-energy fixed, portable, and moving

378

Accelerating the transfer in Technology Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Accelerating the transfer in Technology Transfer Accelerating the transfer in Technology Transfer Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Accelerating the transfer in Technology Transfer Express Licensing fast tracks commercialization. May 1, 2013 Division Leader Dave Pesiri Division Leader Dave Pesiri. Contact Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Express Licensing program To better serve its partners, one of the first improvements the Lab's Technology Transfer Division (TT) has made is through its new Express Licensing initiative. Standardized license agreements and fee structures will remove long and complicated negotiations and decrease the time required to get patented Lab technology and software into the hands of

379

Optimization Online - Energy Savings in Wireless Mesh Networks in ...  

E-Print Network [OSTI]

Jan 24, 2011 ... Abstract: Energy consumption of communication systems is ... Keywords: Energy savings, wireless Mesh Networks, Green networking.

Antonio Capone

2011-01-24T23:59:59.000Z

380

Using Wireless Technology to Reduce Facility Energy Usage  

Broader source: Energy.gov [DOE]

This presentation details the U.S. Department of Energy's TEAM initiative's wireless technologies and their applications.

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Efficient Hybrid Key Agreement Protocol for Wireless Ad Hoc Networks  

E-Print Network [OSTI]

Efficient Hybrid Key Agreement Protocol for Wireless Ad Hoc Networks Xiang-Yang Li Yu Wang Ophir important aspects in ad-hoc wireless networks. To ensure the security, several cryptography protocols must efficient when applied to wireless ad-hoc networks. In this paper, we propose a key agreement protocol

Wang, Yu

382

Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks  

E-Print Network [OSTI]

Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks Jon Arnold, Nigel Bean.sorell@adelaide.edu.au Abstract-- Wireless ad hoc networks provide a useful commu- nications infrastructure for the mobile Hoc Protocols, 802.11, Monitoring, Template Fitting, NS-2. I. INTRODUCTION Wireless Ad Hoc Networks

Roughan, Matthew

383

Video Pricing for Wireless Networks Patrick Seeling and Martin Reisslein  

E-Print Network [OSTI]

Video Pricing for Wireless Networks Patrick Seeling and Martin Reisslein Dept. of Electrical://trace.eas.asu.edu Abstract-- The development of pricing schemes that account for the specific challenges in streaming video to wireless clients is one of the key requirements for making wireless video services economically viable

Reisslein, Martin

384

Wireless Networks manuscript No. (will be inserted by the editor)  

E-Print Network [OSTI]

by becoming mobile. This is referred to as mHealth [2]. In order to fully exploit the benefits of wireless technologies in telemedicine and mHealth, a new type of wireless network emerges: a wireless on-body network

385

A Comprehensive Overview of Wireless Body Area Networks WBAN  

Science Journals Connector (OSTI)

In recent years, the wireless body area network WBAN has emerged as a new technology for e-healthcare applications. The WBANs promise to revolutionize health monitoring. However, this technology remains in the first stages and much research is underway. ... Keywords: Healthcare, IEEE802.15.6, MAC, Security, Sensors, Wireless Body Area Networks, Wireless Sensors Networks

Nourchene Bradai, Lamia Chaari, Lotfi Kamoun

2011-07-01T23:59:59.000Z

386

Towards Integrated PSEs for Wireless Communications: Experiences with the S  

E-Print Network [OSTI]

¥ Wireless Networking and Communications Group (WNCG) Department of Electrical and Computer EngineeringTowards Integrated PSEs for Wireless Communications: Experiences with the S W and SitePlanner R¦ , Jing Jiang¦ , and William H. Tranter¦ ¢ Wireless Valley Communications, Inc. Austin, TX 78758 £ Google

Ramakrishnan, Naren

387

STOCHASTIC CONTROL FOR DISTRIBUTED SYSTEMS WITH APPLICATIONS TO WIRELESS  

E-Print Network [OSTI]

STOCHASTIC CONTROL FOR DISTRIBUTED SYSTEMS WITH APPLICATIONS TO WIRELESS COMMUNICATIONS Minyi Huang Departement of Electrical and Computer Engineering McGill University, Montr´eal June 2003 A Thesis submitted and optimization of distributed stochastic systems motivated by current wireless applications. In wireless

Huang, Minyi

388

Distributed Medium Access Control for Next Generation CDMA Wireless Networks  

E-Print Network [OSTI]

Distributed Medium Access Control for Next Generation CDMA Wireless Networks Hai Jiang, Princeton wireless networks are expected to have a simple infrastructure with distributed control. In this article, we consider a generic distributed network model for future wireless multi- media communications

Zhuang, Weihua

389

What is the Right Model for Wireless Channel Interference?  

E-Print Network [OSTI]

What is the Right Model for Wireless Channel Interference? Aravind Iyer, Catherine Rosenberg, and the links do not interfere with one another. In contrast, in a wireless network, signal transmissions are intrinsically broadcast, and suffer from mutual interference. In several physical layer technologies, a wireless

Rosenberg, Catherine P.

390

Department of Electrical Engineering Spring 2011 Wireless SleepPhones  

E-Print Network [OSTI]

PENNSTATE Department of Electrical Engineering Spring 2011 Wireless SleepPhones Overview Our sound to the user while they slept, to provide a wireless version. They told us that their current demographic was 50+ year olds and they felt that the wireless version could help them to appeal to younger

Demirel, Melik C.

391

Information Commons Help Desk Internet / Connectivity Wireless Access  

E-Print Network [OSTI]

Information Commons Help Desk Internet / Connectivity » Wireless Access ID #1912 Connecting in the Username and Password fields.5. Info Commons Help Desk - Connecting to the UofT wireless netwo... http://help on this entry Info Commons Help Desk - Connecting to the UofT wireless netwo... http://help

Boonstra, Rudy

392

University of Maryland Baltimore (UMB) Wireless Security Standard  

E-Print Network [OSTI]

on building switch · All Access Points within the building to be contained in wireless VLAN Standard(sUniversity of Maryland Baltimore (UMB) Wireless Security Standard Effective Date: 04/14/03 Purpose This standard establishes a framework for ensuring that wireless networking technologies deployed within

Weber, David J.

393

Wireless Networks for Smart Surveillance: Technologies, Protocol Design and Experiments  

E-Print Network [OSTI]

of companies operating in the field of home automation and advanced security systems. Although most solutions of security. A wireless network for home automation is composed of a number of wireless-embedded sensors propagation. Several examples of Wireless Home Automation Networks (WHAN) have been discussed

Savazzi, Stefano

394

Channel assignment using block design in wireless mesh networks  

Science Journals Connector (OSTI)

With the advantages of both wireless LAN and ad hoc, wireless mesh network (WMN) has its characteristic performance in the following aspects: capacity, speed and coverability. In order to solve channel assignment problems in WMN, connectivity of the ... Keywords: Channel assignment, Connectivity, Interference, Routing, Wireless mesh network

Hejiao Huang; Xiaolu Cao; Xiaohua Jia; Xiaolong Wang

2009-05-01T23:59:59.000Z

395

Optimal Audio Transmission over Error-Prone Wireless Links  

E-Print Network [OSTI]

1 Optimal Audio Transmission over Error-Prone Wireless Links Ala' Khalifeh, Student Member IEEE for transmitting high quality audio sequences over error-prone wireless links. Our framework introduces apparatus and technique to optimally protect a stored audio sequence transmitted over a wireless link while considering

Yousefi'zadeh, Homayoun

396

Federal Laboratory Technology Transfer  

E-Print Network [OSTI]

Federal Laboratory Technology Transfer Fiscal Year 2008 Prepared by: National Institute to submit this fiscal year 2008 Technology Transfer Summary Report to the President and the Congress transfer authorities established by the Technology Transfer Commercialization Act of 2000 (P.L. 106

Perkins, Richard A.

397

Power and spectrum efficient communications in wireless ad hoc networks  

E-Print Network [OSTI]

on-cooperation message (AoC) with its own user ID included;requesting node receives the AoC message from a neighbor, it

Qu, Qi

2008-01-01T23:59:59.000Z

398

Wireless Power Transmission: An Obscure History, Possibly a Bright Future.  

E-Print Network [OSTI]

the use of microwaves because of the economic and energy efficiency that can be leveraged by products) and James F. Trimer (NASA) announced the development of a thin-film plastic rectenna using printed

La Rosa, Andres H.

399

Empirical Analysis of Transmission Power Control Algorithms for Wireless  

E-Print Network [OSTI]

#12;Using Sensor Networks for Real World · Industrial applications (e.g. HVAC, building control not filter the nodes of bad link quality. · Packet Reception Rate (PRR) ­ Filter the neighbors based on PRR. ­ Filter the neighbors based on received signal strength. ­ With hardware assistance, it can determine link

California at Berkeley, University of

400

Using Wireless Power Meters to Measure Energy Use of  

E-Print Network [OSTI]

by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Technology Development, Building Energy Use of Miscellaneous and Electronic Devices in Buildings Richard Brown1 , Steven Lanzisera1 , Hoi-third of the primary energy used in U.S. buildings, and their energy use is increasing faster than other end

Culler, David E.

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Energy Harvesting for Self-Powered Wireless Sensors  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . 37 D. CMOS Rectifiers . . . . . . . . . . . . . . . . . . . . . . . 39 1. Standard and Schottky Diode Rectifiers . . . . . . . . 39 2. MOS Diode Rectifiers . . . . . . . . . . . . . . . . . . 41 3. Efficiency Enhancement Techniques.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 9 Extrapolated MSMA output voltage vs. frequency. . . . . . . . . . . 29 10 Greinacher/Cockroft-Walton N-stage inductorless transformer. . . . . 35 11 Different rectifier architectures with: a) diodes, b) NMOS, c) CMOS, d) EVC, e) IVC, f) SVC...

Wardlaw, Jason

2012-02-14T23:59:59.000Z

402

A maritime wireless communication primitive power-supplied by GPS  

Science Journals Connector (OSTI)

As global positioning systems (GPS) are becoming ubiquitous GPS signals are populating the space. While such signals have exclusively been used in localization services in the first place we take the first step in turning them to energy sources for maritime communication. Specifically we leverage antennas deployed on ships to harvest energy from such ambient GPS signals which are also fed into encoders to carry information bits. This way maritime communication can be built completely battery-free all day long. Also it it because the communication takes place on the ocean where no interference is introduced except for the original GPS signals to the backscattered GPS signals the design of the transceiver under certain energy budget is simplified. In this paper we show the theoretical promise that the system would work using electromagnetic theories and introduce our prototype which proves the concept in real world settings.

2014-01-01T23:59:59.000Z

403

CMOS RF power amplifier design approaches for wireless communications  

E-Print Network [OSTI]

A binary-to-thermometer decoderAtt2 CLK V dec Binary-to-Thermometer Decoder EN to unit andbits are decoded into a thermometer code and used to control

Pornpromlikit, Sataporn

2010-01-01T23:59:59.000Z

404

A Global Optimization Approach to the Design of Solar Power Plants  

E-Print Network [OSTI]

May 8, 2014 ... A method for optimizing a Solar Power Tower system is proposed, ... at a high temperature is then transferred to the heat transfer fluid to ...

2014-05-08T23:59:59.000Z

405

Power Plant Power Plant  

E-Print Network [OSTI]

Basin Center for Geothermal Energy at University of Nevada, Reno (UNR) 2 Nevada Geodetic LaboratoryStillwater Power Plant Wabuska Power Plant Casa Diablo Power Plant Glass Mountain Geothermal Area Lassen Geothermal Area Coso Hot Springs Power Plants Lake City Geothermal Area Thermo Geothermal Area

Tingley, Joseph V.

406

Scaling self-timed systems powered by mechanical vibration energy harvesting  

Science Journals Connector (OSTI)

Passive energy harvesting from mechanical vibration has wide application in wearable devices and wireless sensors to complement or replace batteries. Energy harvesting efficiency can be increased by eliminating AC/DC conversion. A test chip demonstrating ... Keywords: AC power supply, DRAM, energy harvesting, energy-aware systems, integrated circuits, low-power design, power-on reset, scaling, self-timed

Justin Wenck; Jamie Collier; Jeff Siebert; Rajeevan Amirtharajah

2010-06-01T23:59:59.000Z

407

Wi-fi backscatter: internet connectivity for RF-powered devices  

Science Journals Connector (OSTI)

RF-powered computers are small devices that compute and communicate using only the power that they harvest from RF signals. While existing technologies have harvested power from ambient RF sources (e.g., TV broadcasts), they require a dedicated gateway ... Keywords: backscatter, energy harvesting, internet of things, wireless

Bryce Kellogg, Aaron Parks, Shyamnath Gollakota, Joshua R. Smith, David Wetherall

2014-08-01T23:59:59.000Z

408

Power Factor Reactive Power  

E-Print Network [OSTI]

power: 130 watts Induction motor PSERC Incandescent lights 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0 power: 150 watts #12;Page 4 PSERC Incandescent Lights PSERC Induction motor with no load #12;Page 5 Incandescent Lights #12;Page 7 PSERC Incandescent lights power: Power = 118 V x 1.3 A = 153 W = 0.15 kW = power

409

Dense, low-power sensor network for three-dimensional thermal characterization of large-scale atria spaces  

E-Print Network [OSTI]

We describe the design and implementation of a dense, low-power wireless sensor network for fine-grained three-dimensional thermal characterization of a large open indoor space. To better understand the airflow dynamics ...

Gong, Nan-Wei

410

Microsoft Word - New Cingular Wireless Environmental Clearance Memorandum.doc  

Broader source: Energy.gov (indexed) [DOE]

September 19, 2011 September 19, 2011 REPLY TO ATTN OF: KEC-4 SUBJECT: Environmental Clearance Memorandum Christine Kimball Realty Specialist - TERR-3 Proposed Action: Grant New Cingular Wireless' request for use of right-of-way at the Salem Substation. Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B4.9 Grant or denial of requests for multiple-use of a transmission facility rights-of-way, such as grazing permits and crossing agreements, including electric lines, water lines and drainage culverts. Location: Polk County Salem Substation, 2815 Salem Dallas Highway NW, Salem,Oregon; Township 7S, Range 3W, Section 29. Proposed by: Bonneville Power Administration (BPA) Description of the Proposed Action: BPA proposes to grant a request submitted by New

411

Wireless Communication for Controlling Microgrids: Co-simulation and Performance Evaluation  

SciTech Connect (OSTI)

A microgrid with wireless communication links for microgrid control has been designed and developed. The complete simulation model has been developed in MatLab SimuLink with seamless integration of the power subsystem and the communication subsystem. Unlike the conventional co-simulators that usually glue two existing simulators together by creating an interface, which has a steep learning curve, the proposed simulator is a compact single-unit model. Detailed modeling of the power subsystem and communication system is presented as well as the microgrid control architecture and strategies. The impact of different communication system performances on microgrid control has been studied and evaluated in the proposed simulator.

Mao, Rukun [ORNL] [ORNL; Xu, Yan [ORNL] [ORNL; Li, Huijuan [ORNL] [ORNL; Li, Husheng [ORNL] [ORNL

2013-01-01T23:59:59.000Z

412

Tags, wireless communication systems, tag communication methods, and wireless communications methods  

SciTech Connect (OSTI)

Tags, wireless communication systems, tag communication methods, and wireless communications methods are described. In one aspect, a tag includes a plurality of antennas configured to receive a plurality of first wireless communication signals comprising data from a reader, a plurality of rectifying circuits coupled with. respective individual ones of the antennas and configured to provide rectified signals corresponding to the first wireless communication signals, wherein the rectified signals are combined to produce a composite signal, an adaptive reference circuit configured to vary a reference signal responsive to the composite signal, a comparator coupled with the adaptive reference circuit and the rectifying circuits and configured to compare the composite signal with respect to the reference signal and to output the data responsive to the comparison, and processing circuitry configured to receive the data from the comparator and to process the data.

Scott; Jeff W. (Pasco, WA), Pratt; Richard M. (Richland, WA)

2006-09-12T23:59:59.000Z

413

Consort: NodeConsort: Node--constrainedconstrained Opportunistic Routing in WirelessOpportunistic Routing in Wireless  

E-Print Network [OSTI]

on Mobile Computing, 2003. K. W. Choi, W. S. Jeon, and D. G. Jeong, "Efficient Load-Aware Routing Scheme. Sankar and Z. Liu, "Maximum Lifetime Routing in Wireless Ad- hoc Networks," IEEE INFOCOM'04. P. P. Pham

Xue, Guoliang

414

NERSC's Data Transfer Nodes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Data Transfer Nodes Data Transfer Nodes Data Transfer Nodes Overview The data transfer nodes are NERSC servers dedicated to performing transfers between NERSC data storage resources such as HPSS and the NERSC Global Filesystem (NGF), and storage resources at other sites including the Leadership Computing Facility at ORNL (Oak Ridge National Laboratory). These nodes are being managed (and monitored for performance) as part of a collaborative effort between ESnet, NERSC, and ORNL to enable high performance data movement over the high-bandwidth 10Gb ESnet wide-area network (WAN). Restrictions In order to keep the data transfer nodes performing optimally for data transfers, we request that users restrict interactive use of these systems to tasks that are related to preparing data for transfer or are directly

415

Inverse Energy Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

which is unstable. It saturates by transfer to a separate, damped eigenmode (i.e., a subcritical spectrum of damped waves). Inverse energy transfer is carried by three-wave...

416

HEAT TRANSFER FLUIDS  

E-Print Network [OSTI]

The choice of heat transfer fluids has significant effects on the performance, cost, and reliability of solar thermal systems. In this chapter, we evaluate existing heat transfer fluids such as oils and molten salts based ...

Lenert, Andrej

2012-01-01T23:59:59.000Z

417

Phase-Transfer Catalysts  

Science Journals Connector (OSTI)

In previous chapters we learned that a phase-transfer catalyst must have two particular chemical functions to be successful, that is, it must rapidly transfer one of the reactant species into the normal phase ...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

418

INL Technology Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technology Transfer Through collaboration with industry partners, INL's Technology Deployment office makes available to American agencies and international organizations unique...

419

ENHANCING THE TRANSFER STUDENT  

E-Print Network [OSTI]

Efforts #12;Who Are Ohio State Transfer Students? #12;TRANSFER PROFILE DatafromSU12,AU12,SP13 3 as NFYS: 576 Average Transfer Hours of Enrolled Student: 52.2 Living on Campus: 470 Total # Sending Expectations (time management skills, balancing a more rigorous course load, study skills) 13.24% Majors (how

420

Federal Laboratory Technology Transfer  

E-Print Network [OSTI]

Federal Laboratory Technology Transfer Fiscal Year 2007 Prepared by: National Institute to present to the President and the Congress this Federal Laboratory Technology Transfer Report summarizing the achievements of Federal technology transfer and partnering programs of the Federal research and development

Perkins, Richard A.

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Federal Laboratory Technology Transfer  

E-Print Network [OSTI]

Federal Laboratory Technology Transfer Fiscal Year 2009 Prepared by: National Institute to submit this fiscal year 2009 Technology Transfer Summary Report to the President and the Congress in accordance with 15 USC Sec 3710(g)(2) for an annual summary on the implementation of technology transfer

Perkins, Richard A.

422

Heat Transfer Guest Editorial  

E-Print Network [OSTI]

Journal of Heat Transfer Guest Editorial We are indeed delighted in bringing out this special issue was showcased in diverse areas such as traditional heat and mass transfer, lab-on-chip, sensors, biomedical applica- tions, micromixers, fuel cells, and microdevices. Selected papers in the field of heat transfer

Kandlikar, Satish

423

Wireless Sensor Networks for the Protection of an Electrical Energy Distribution Infrastructure  

E-Print Network [OSTI]

Wireless Sensor Networks for the Protection of an Electrical Energy Distribution Infrastructure Ant. Keywords: Wireless Sensor Networks, Critical Infrastructure Protection, Electrical Energy Distribution of critical points of failure. Fig. 1. MV/LV electricity distribution infrastructure. The Wireless Sensor

Boyer, Edmond

424

Network-Aware Content Shaping for Energy Efficient Wireless Web Access  

Science Journals Connector (OSTI)

Wireless web access is projected to be a primary driving application for the success of next generation wireless data services. However, enabling efficient wireless web access has several bottlenecks, including v...

Debashis Panigrahi; Sujit Dey…

2002-01-01T23:59:59.000Z

425

Achieving Quality of Service Guarantees for Delay Sensitive Applications in Wireless Networks  

E-Print Network [OSTI]

the delay issue in some major instances of wireless communication networks. First, we study a wireless content distribution network (CDN), in which the requests for the content may have service deadlines. Our wireless CDN consists of a media vault...

Abedini, Navid

2012-10-19T23:59:59.000Z

426

Ultra Low Power IEEE 802.15.4/ZIGBEE Compliant Transceiver  

E-Print Network [OSTI]

Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Edgar S?nchez-Sinencio Committee Members, Jos? Silva...) Faisal Abdel-Latif Elseddeek Ali Hussien, B.S., Cairo University, Egypt; M.S., Cairo University, Egypt Chair of Advisory Committee: Dr. Edgar S?nchez-Sinencio Low power wireless communications is the most demanding request among all wireless...

Hussien, Faisal A.

2011-02-22T23:59:59.000Z

427

Broadband Wireless Cognitive Radio-I  

E-Print Network [OSTI]

spectrum usage! #12;CMPE 591 - Broadband Wireless Networks 6 Cognitive Radio "Cognitive Radio" is the key portions of the spectrum is available and detect the presence of licensed users when a user operates in a licensed band. (Spectrum Sensing) 2. Select the best available channel. (Spectrum Decision) 3. Coordinate

Tuðcu, Tuna

428

Graphene-enabled Wireless Communication Networks  

E-Print Network [OSTI]

Graphene-enabled Wireless Communication Networks at the Nanoscale 1 Ignacio Llatser Nanonetworking;Graphene Honeycomb lattice of carbon atoms 2-dimensional material Discovered by A. K. Geim and K. S. Novoselov 9 Graphene G. Liu, W. Stillman, S. Rumyantsev, Q. Shao, M. Shur, A. A. Balandin, "Low

Politècnica de Catalunya, Universitat

429

Software Update Recovery for Wireless Sensor Networks  

E-Print Network [OSTI]

mechanism that uses loss-of- control to provide high-reliability, low energy, software updates, includingSoftware Update Recovery for Wireless Sensor Networks Stephen Brown1 and Cormac J. Sreenan2 1 Laboratory, University College Cork, Ireland Abstract. Updating software over the network is important

Sreenan, Cormac J.

430

Ontological Configuration Management for Wireless Mesh Routers  

E-Print Network [OSTI]

the CIM model and OWL ontology language and implementing XSLT transformations from the originalOntological Configuration Management for Wireless Mesh Routers Iv´an D´iaz , Cristian Popi configuration format to CIM/OWL and back. We thus represent it in a higher level of abstraction, an on

Paris-Sud XI, Université de

431

Energy Cooperation in Energy Harvesting Wireless Communications  

E-Print Network [OSTI]

Energy Cooperation in Energy Harvesting Wireless Communications Berk Gurakan1 , Omur Ozel1 , Jing node, a relay node and a destination node where the source and the relay can harvest energy from the nature. Energy required for communication arrives (is harvested) at the transmitter and an unlimited

Ulukus, Sennur

432

Iterative Collision Resolution in Wireless Networks  

E-Print Network [OSTI]

ITERATIVE COLLISION RESOLUTION IN WIRELESS NETWORKS An Undergraduate Research Scholars Thesis by KATHERINE CHRISTINE STUCKMAN Submitted to Honors and Undergraduate Research Texas A&M University in partial fulfillment... Networks (April 2013) Katherine Christine Stuckman Department of Electrical and Computer Engineering Texas A&M University Research Advisor: Dr. Krishna Narayanan Department of Electrical and Computer Engineering With the growing...

Stuckman, Katherine Christine

2013-03-29T23:59:59.000Z

433

Distributed A Wireless Sensor Network for  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . 11 4.3.1 Transmission Lines . . . . . . . . . . . . . . . . . . . . . . 12 4.3.2 Microstrip LinesOS is used as a software platform, and the Collection Tree Protocol (CTP) currently handles multi-hop routing-wave Monopole Antennas . . . . . . . . . . . . . 13 5 MAC and Routing in Wireless Sensor Networks 14 5.1 Medium

434

Energy Conservation Utilizing Wireless Dimmable Lighting Control  

E-Print Network [OSTI]

Energy Conservation Utilizing Wireless Dimmable Lighting Control in a Shared-Space Office Yao Lighting accounts for 25-30% of energy usage in building electrical systems Energy savings can be generated Energy Efficiency with Personal Lighting Preferences Light level tuning · Generates energy savings

Agogino, Alice M.

435

Molten Salt Heat Transfer Fluid (HTF)  

Energy Innovation Portal (Marketing Summaries) [EERE]

Sandia has developed a heat transfer fluid (HTF) for use at elevated temperatures that has a lower freezing point than any molten salt mixture available commercially. This allows the HTF to be used in applications in which the expensive parasitic energy costs necessary for freeze protection can be significantly reduced. The higher operating temperature limit significantly increases power cycle efficiency and overall power plan sun-to-net electric efficiency....

2013-03-12T23:59:59.000Z

436

DOE Funds 15 New Projects to Develop Solar Power Storage and...  

Broader source: Energy.gov (indexed) [DOE]

15 New Projects to Develop Solar Power Storage and Heat Transfer Projects For Up to 67.6 Million DOE Funds 15 New Projects to Develop Solar Power Storage and Heat Transfer...

437

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 5, SEPTEMBER 2002 669 Adaptive Piezoelectric Energy Harvesting Circuit for  

E-Print Network [OSTI]

benefit from such a supply are a capacitively tuned vibration absorber [1], a foot-powered radio "tag" [2IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 5, SEPTEMBER 2002 669 Adaptive Piezoelectric Energy Harvesting Circuit for Wireless Remote Power Supply Geffrey K. Ottman, Member, IEEE, Heath F

Hofmann, Heath F.

438

Improving spectrum sensing and multiuser cooperation in wireless cognitive radio networks.  

E-Print Network [OSTI]

??Nowadays wireless spectrum resource is more and more scarce because most wireless spectrum bands have been allocated to licensed users, however measurements show that many… (more)

Song, Chengqi

2010-01-01T23:59:59.000Z

439

Power-Constrained actuator coordination for agricultural sensor networks  

Science Journals Connector (OSTI)

Upon the ubiquitous sensor network capable of deciding control actions by a sophisticated inference engine, this paper designs an actuator controller which coordinates the actuator operations over the multiple farms. Basically, not beginning tasks as ... Keywords: actuator schedule, demand response, farm group, peak power reduction, wireless sensor network

Junghoon Lee; Gyung-Leen Park; Ho-Young Kwak; Jikwang Han

2012-05-01T23:59:59.000Z

440

POWER-EFFICIENT OFDM WITH REDUCED COMPLEXITY AND FEEDBACK OVERHEAD  

E-Print Network [OSTI]

to the transmitter. Our design exploits the correlation among sub-carriers in order to re- duce feedback overheadPOWER-EFFICIENT OFDM WITH REDUCED COMPLEXITY AND FEEDBACK OVERHEAD Antonio G. Marques Dept. of TSC subscriber lines (DSL), digital audio and video broadcasting (DAB/DVB) standards and wireless local area

Marques, Antonio Garcia

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

DQE of wireless digital detectors: Comparative performance with differing filtration schemes  

SciTech Connect (OSTI)

Purpose: Wireless flat panel detectors are gaining increased usage in portable medical imaging. Two such detectors were evaluated and compared with a conventional flat-panel detector using the formalism of the International Electrotechnical Commission (IEC 62220-1) for measuring modulation transfer function (MTF), normalized noise power spectrum (NNPS), and detective quantum efficiency (DQE) using two different filtration schemes.Methods: Raw images were acquired for three image receptors (DRX-1C and DRX-1, Carestream Health; Inc., Pixium 4600, Trixell) using a radiographic system with a well-characterized output (Philips Super80 CP, Philips Healthcare). Free in-air exposures were measured using a calibrated radiation meter (Unfors Mult-O-Meter Type 407, Unfors Instruments AB). Additional aluminum filtration and a new alternative combined copper-aluminum filtration were used to conform the x ray output to IEC-specified beam quality definitions RQA5 and RQA9. Using the IEC 62220-1 formalism, each detector was evaluated at X{sub N}/2, X{sub N}, and 2X{sub N}, where the normal exposure level to the detector surface (X{sub N}) was set to 8.73 ?Gy (1.0 mR). The prescribed edge test device was used to evaluate the MTF, while the NNPS was measured using uniform images. The DQE was then calculated from the MTF and NNPS and compared across detectors, exposures, and filtration schemes.Results: The three DR systems had largely comparable MTFs with DRX-1 demonstrating lower values above 1.0 cycles/mm. At each exposure, DRX-1C and Pixium detectors demonstrated better noise performance than that of DRX-1. Zero-frequency DQEs for DRX-1C, Pixium, and DRX-1 detectors were approximately 74%, 63%, and 38% for RQA5 and 50%, 42%, and 28% for RQA9, respectively.Conclusions: DRX-1C detector exhibited superior DQE performance compared to Pixium and DRX-1. In terms of filtration, the alternative filtration was found to provide comparable performance in terms of rank ordering of different detectors with the added convenience of being less bulky for in-the-field measurements.

Samei, Ehsan [Carl E. Ravin Advanced Imaging Laboratories, Departments of Radiology, Biomedical Engineering, Physics, and Electrical and Computer Engineering, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States)] [Carl E. Ravin Advanced Imaging Laboratories, Departments of Radiology, Biomedical Engineering, Physics, and Electrical and Computer Engineering, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States); Murphy, Simon; Christianson, Olav [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States)] [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States)

2013-08-15T23:59:59.000Z

442

ACEEE Int. J. on Electrical and Power Engineering, Vol. 02, No. 01, Feb 2011 2011 ACEEE  

E-Print Network [OSTI]

that can transfer power between asynchronous networks and functionally is similar to back-to-back HVDC

Paris-Sud XI, Université de

443

Three-dimensional particle scale modeling of heat transfer in fluidized beds.  

E-Print Network [OSTI]

??Heat transfer between particle-fluid media and solid surfaces has wide applications in industries such as power plant, steel heat treatment, and chemical processes. One of… (more)

Wahyudi, Hadi

2014-01-01T23:59:59.000Z

444

Doppler effect on target tracking in wireless sensor networks  

Science Journals Connector (OSTI)

This paper presents a new detection algorithm and high speed/accuracy tracker for tracking ground targets in acoustic wireless sensor networks (WSNs). Our detection algorithm naturally accounts for the Doppler effect which is an important consideration for tracking higher-speed targets. This algorithm employs Kalman filtering (KF) with the weighted sensor position centroid being used as the target position measurement. The weighted centroid makes the tracker to be independent of the detection model and changes the tracker to be near optimal, at least within the detection parameters used in this study. Our approach contrasts with previous approaches that employ more sophisticated tracking algorithms with higher computational complexity and use a power law detection model. The power law detection model is valid only for low speed targets and is susceptible to mismatch with detection by the sensors in the field. Our tracking model also enables us to uniquely study various environmental effects on track accuracy, such as the Doppler effect, signal collision, signal delay, and different sampling time. Our WSN tracking model is shown to be highly accurate for a moving target in both linear and accelerated motions. The computing speed is estimated to be 50–100 times faster than the previous more sophisticated methods and track accuracy compares very favorably.

Youngwon Kim An; Seong-Moo Yoo; Changhyuk An; B. Earl Wells

2013-01-01T23:59:59.000Z

445

Microsoft Word - Wireless Automation World for OE FINAL.doc  

Broader source: Energy.gov (indexed) [DOE]

Automation World Features New White Paper on Wireless Security, Interviews Authors Automation World Features New White Paper on Wireless Security, Interviews Authors April 16, 2009 The April 2009 issue of Automation World magazine features the white paper Wireless Systems Considerations When Implementing NERC Critical Infrastructure Protection Standards. The paper addresses wireless protection issues arising from requirements of the Critical Infrastructure Protection (CIP) Standards for the electricity sector, developed by the North American Electric Reliability Corporation (NERC). The CIP standards require entities to monitor and control all electronic access to a company's electronic security perimeter, but this requirement becomes difficult to implement when it

446

Planning Wireless Networks with Demand Uncertainty using Robust ...  

E-Print Network [OSTI]

Abstract An optimal planning of future wireless networks is fundamental to satisfy rising traffic ..... COST 231. Urban micro cell measurements and building data.

2011-03-04T23:59:59.000Z

447

India: a case of fragile wireless service and technology adoption?  

Science Journals Connector (OSTI)

Wireless penetration and the Indian economy have grown significantly over the past few years, but how robust and sustainable is the adoption of wireless services and products? Several papers have discussed India as a wireless service and product market, and sometimes tried to assess quantitative attributes thereof. The present paper aims, looking from a managerial point of view, at the unique underlying evolution processes, bottlenecks and risks. It analyses five traditional adoption models, as well as five other one's, to determine their fit, or not, to the Indian wireless evolution.

L-F. Pau; J. Motiwalla

2008-01-01T23:59:59.000Z

448

Distributed Energy-Saving Algorithms for Wireless Networks.  

E-Print Network [OSTI]

??The rapid growth of wireless networks has led to increasing interest in designing new algorithms that can efficiently reduce the energy consumption of routers and… (more)

Zazo Ruiz, Javier

449

Distributed Energy-Saving Algorithms for Wireless Networks.  

E-Print Network [OSTI]

??The rapid growth of wireless networks has led to increasing interest in designing new algorithms that can efficiently reduce the energy consumption of routers and… (more)

Zazo Ruiz, Javier

2012-01-01T23:59:59.000Z

450

Wireless Sensor Network for Aircraft Health Monitoring Honeywell Labs  

E-Print Network [OSTI]

Wireless Sensor Network for Aircraft Health Monitoring Haowei Bai Honeywell Labs 3660 Technology Drive Minneapolis, MN 55418 haowei.bai@honeywell.com Mohammed Atiquzzaman School of Computer Science

Minnesota, University of

451

Existing PON Infrastructure Supported Hybrid Fiber-Wireless Sensor Networks  

Science Journals Connector (OSTI)

We propose a hybrid fiber wireless sensor network based on the existing PON infrastructure. The feasibility of remote sensing and PON convergence is experimentally proven by...

Yu, Xianbin; Zhao, Ying; Deng, Lei; Pang, Xiaodan; Tafur Monroy, Idelfonso

452

Self-Optimization in Mobile Cellular Networks: Power Control and User Association  

E-Print Network [OSTI]

Self-Optimization in Mobile Cellular Networks: Power Control and User Association Chung Shue Chen develop mathematical and algorith- mic tools for the self-optimization of mobile cellular networks the wireless devices are proposed. We focus on the optimization of transmit power and of user association

Paris-Sud XI, Université de

453

Fuel transfer system  

DOE Patents [OSTI]

A nuclear fuel bundle fuel transfer system includes a transfer pool containing water at a level above a reactor core. A fuel transfer machine therein includes a carriage disposed in the transfer pool and under the water for transporting fuel bundles. The carriage is selectively movable through the water in the transfer pool and individual fuel bundles are carried vertically in the carriage. In a preferred embodiment, a first movable bridge is disposed over an upper pool containing the reactor core, and a second movable bridge is disposed over a fuel storage pool, with the transfer pool being disposed therebetween. A fuel bundle may be moved by the first bridge from the reactor core and loaded into the carriage which transports the fuel bundle to the second bridge which picks up the fuel bundle and carries it to the fuel storage pool. 6 figures.

Townsend, H.E.; Barbanti, G.

1994-03-01T23:59:59.000Z

454

Fuel transfer system  

DOE Patents [OSTI]

A nuclear fuel bundle fuel transfer system includes a transfer pool containing water at a level above a reactor core. A fuel transfer machine therein includes a carriage disposed in the transfer pool and under the water for transporting fuel bundles. The carriage is selectively movable through the water in the transfer pool and individual fuel bundles are carried vertically in the carriage. In a preferred embodiment, a first movable bridge is disposed over an upper pool containing the reactor core, and a second movable bridge is disposed over a fuel storage pool, with the transfer pool being disposed therebetween. A fuel bundle may be moved by the first bridge from the reactor core and loaded into the carriage which transports the fuel bundle to the second bridge which picks up the fuel bundle and carries it to the fuel storage pool.

Townsend, Harold E. (Campbell, CA); Barbanti, Giancarlo (Cupertino, CA)

1994-01-01T23:59:59.000Z

455

Definition: Electric power | Open Energy Information  

Open Energy Info (EERE)

power power Jump to: navigation, search Dictionary.png Electric power The amount of energy produced per second; the rate at which electric energy is transferred; commonly expressed in megawatts (MW).[1] View on Wikipedia Wikipedia Definition Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Electric power is usually produced by electric generators, but can also be supplied by chemical sources such as electric batteries. Electric power is generally supplied to businesses and homes by the electric power industry. Electric power is usually sold by the kilowatt hour (3.6 MJ) which is the product of power in kilowatts multiplied by running time in hours. View on Reegle Reegle Definition

456

Technology Transfer: About the Technology Transfer Department  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

About the Technology Transfer and Intellectual Property Management About the Technology Transfer and Intellectual Property Management Department The Technology Transfer Department helps move technologies from the Lab to the marketplace to benefit society and the U. S. economy. We accomplish this through developing and managing an array of partnerships with the private and public sectors. What We Do We license a wide range of cutting-edge technologies to companies that have the financial, R & D, manufacturing, marketing, and managerial capabilities to successfully commercialize Lab inventions. In addition, we manage lab-industry research partnerships, ensure that inventions receive appropriate patent or copyright protection, license technology to start-up companies, distribute royalties to the Lab and to inventors and serve as

457

NREL: Technology Transfer - About Technology Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

About Technology Transfer About Technology Transfer Through technology partnerships, NREL seeks to reduce private sector risk and enable investment in the adoption of renewable energy and energy efficiency technologies. The transfer of these technologies to the marketplace helps displace oil, reduce carbon emissions, and increase U.S. industry competitiveness. Principles NREL develops and implements technology partnerships based on the standards established by the following principles: Balancing Public and Private Interest Form partnerships that serve the public interest and advance U.S. Department of Energy goals. Demonstrate appropriate stewardship of publicly funded assets, yielding national benefits. Provide value to the commercial partner. Focusing on Outcomes Develop mutually beneficial collaborations through processes, which are

458

Partnerships and Technology Transfer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Partnerships and Technology Transfer User Facilities Visiting Us Contact Us Home About Us Success Stories Events News ORNL Inventors (internal only) Find a Technology Search go...

459

Technology Transfer Ombudsman Program  

Broader source: Energy.gov [DOE]

The Technology Transfer Commercialization Act of 2000, Public Law 106-404 (PDF) was enacted in November 2000.  Pursuant to Section 11, Technology Partnerships Ombudsman, each DOE national...

460

Facility Survey & Transfer  

Broader source: Energy.gov [DOE]

As DOE facilities become excess, many that are radioactively and/or chemically contaminated will become candidate for transfer to DOE-EM for deactivation and decommissioning.

Note: This page contains sample records for the topic "wireless power transfer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

MATERIALS TRANSFER AGREEMENT  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MTAXX-XXX 1 MATERIAL TRANSFER AGREEMENT for Manufacturing Demonstration Facility and Carbon Fiber Technology Facility In order for the RECIPIENT to obtain materials, the RECIPIENT...

462

Tunable transfer | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to microbes by studying that transfer in a nature-inspired, protein and iron-based nanoparticle system. Iron plays a crucial role in environmental biogeochemistry. It readily...

463

Heat transfer dynamics  

SciTech Connect (OSTI)

As heat transfer technology increases in complexity, it becomes more difficult for those without thermal dynamics engineering training to choose between competitive heat transfer systems offered to meet their drying requirements. A step back to the basics of heat transfer can help professional managers and papermakers make informed decisions on alternative equipment and methods. The primary forms of heat and mass transfer are reviewed with emphasis on the basics, so a practical understanding of each is gained. Finally, the principles and benefits of generating infrared energy by combusting a gaseous hydrocarbon fuel are explained.

Smith, T.M. (Marsden, Inc., Pennsauken, NJ (United States))

1994-08-01T23:59:59.000Z

464

Wireless boundary monitor system and method  

DOE Patents [OSTI]

A wireless boundary monitor system used to monitor the integrity of a boundary surrounding an area uses at least two housings having at least one transmitting means for emitting ultrasonic pressure waves to a medium. Each of the housings has a plurality of receiving means for sensing the pressure waves in the medium. The transmitting means and the receiving means of each housing are aimable and communicably linked. At least one of the housings is equipped with a local alarm means for emitting a first alarm indication whereby, when the pressure waves propagating from a transmitting means to a receiving means are sufficiently blocked by an object a local alarm means or a remote alarm means or a combination thereof emit respective alarm indications. The system may be reset either manually or automatically. This wireless boundary monitor system has useful applications in both indoor and outdoor environments.

Haynes, Howard D. (Knoxville, TN); Ayers, Curtis W. (Kingston, TN)

1997-01-01T23:59:59.000Z

465

Wireless Roadside Inspection Field Operations.pub  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Field Operational Test (FOT) Field Operational Test (FOT) Oak Ridge National Laboratory managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract number DE-AC05-00OR22725 Research Areas Freight Flows Passenger Flows Supply Chain Efficiency Transportation: Energy Environment Safety Security Vehicle Technologies Research Brief T he U.S. Department of Transportation (DOT) Federal Motor Carrier Safety Administration (FMCSA) has commissioned the Wireless Roadside Inspection (WRI) Program to validate technologies and methodologies that can improve safety through inspections using wireless technologies that convey real-time identification of commercial vehicles, drivers, and carriers, as well as information about the status of the vehicles and their drivers. It is hypothesized that

466

International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics 8-10 April 2002, Kruger Park, South Africa  

E-Print Network [OSTI]

HEFAT2002 1st International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics 8 topic in heat transfer. The power dissipation of the computer chips is rapidly increasing. The thermal management of these high power systems provides a complex challenge. Unfortunately, the heat transfer area

Kandlikar, Satish

467

Power-aware node-disjoint multipath source routing with low overhead in MANET  

Science Journals Connector (OSTI)

With the advance of wireless communication technologies, small-size and high-performance computing and communication devices like laptops and personal digital assistants are increasingly used in daily life. After the success of second generation mobile system, more interest was started in wireless communications. This interest had led to two types of the wireless networks such as infrastructure wireless network and infrastructure less wireless network, also called mobile ad hoc network (MANET). The research challenges in MANET are related to the routing, security, reliability, scalability, quality of services, internetworking, power consumption and multimedia applications. All the mobile nodes of MANET operate on the battery power; hence power consumption becomes an important issue in MANET. It proposes a power-aware node-disjoint multipath source routing (PNDMSR) for real-time traffic, which balances the node energy utilisation to increase the network lifetime. It takes the network congestion into account to reduce the routing delay across the network, and increases the reliability of the data packets reaching the destination.

M. Bheemalingaiah; M.M. Naidu; D. Sreenivasa Rao; G. Varaprasad

2009-01-01T23:59:59.000Z

468

Thermal Control of Power Electronics of Electric Vehicles with...  

Broader source: Energy.gov (indexed) [DOE]

RelevanceObjectives Objectives: * Explore the potential of nucleate boiling for vehicle power electronics cooling. * Conduct numerical heat transfer simulations. * Experimentally...

469

Concentrating Solar Power Tower System Basics | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

which, in turn, is used in a conventional turbine generator to produce electricity. Some power towers use watersteam as the heat-transfer fluid. Other advanced designs are...

470

new freshmen new transfers  

E-Print Network [OSTI]

for AP courses. Transfer GPA is based on a 4-point scale. #12;ETHNICITY African American/Black Am Indian% Number 48 81 GENDER Male Female ETHNICITY African American Am Indian/AK Native Asian Hispanic Pacificth %-ile 690 740 710 31 Transfers 3.67 Freshman GPA is calculated taking into account a 5-point scale

Koehler, Carla

471

An Integrated Framework for Obstacle Mapping with See-Through Capabilities using Laser and Wireless  

E-Print Network [OSTI]

and Wireless Channel Measurements Alejandro Gonzalez-Ruiz, Alireza Ghaffarkhah, Yasamin Mostofi Abstract-through capabilities using laser and wireless channel measurements, which can provide mapping capabilities beyond and mapped based on wireless channel measurements. For the latter, we extend our recently-proposed wireless

Liebling, Michael

472

Secure hybrid routing with micro/macro-mobility handoff mechanisms for urban wireless mesh networks  

Science Journals Connector (OSTI)

Secure and pervasive internet access is the goal of present research in wireless networks realm. Wireless Mesh Network (WMN) is expected to be the most widely used network in the near future to make the anywhere-anytime internet access into ... Keywords: handoff latency, handoff mechanisms, hybrid routing, key management, mobility management, pervasive internet access, security, simulation, urban WMN:, wireless mesh networks, wireless networks

Ramanarayana Kandikattu; Lillykutty Jacob

2008-10-01T23:59:59.000Z

473

Energy Efficiency of Symmetric Key Cryptographic Algorithms in Wireless Sensor Networks  

E-Print Network [OSTI]

Energy Efficiency of Symmetric Key Cryptographic Algorithms in Wireless Sensor Networks Xueying-- In this paper, we examine the energy efficiency of symmetric key cryptographic algorithms applied in wireless energy efficiency with a level of security suitable for wireless sensor networks. Keywords - wireless

Heys, Howard

474

Responses To Questions Concerning Technology Transfer Practices at DOE  

Broader source: Energy.gov (indexed) [DOE]

Responses To Questions Concerning Technology Transfer Practices at Responses To Questions Concerning Technology Transfer Practices at DOE Laboratories Responses To Questions Concerning Technology Transfer Practices at DOE Laboratories AllianceForSustainableEnergy Battelle Department of Economic and Community Development Planar Energy Devices Center for Hydrogen Research Electric Power Research Institute (EPRI) APJeT, Inc. Pacific Northwest National Laboratory (PNNL) American Superconductor (AMSC) Economic Development Partnership Campbell Applied Physics, Inc. Oak Ridge Economic Partnership Purdue University Council on Governmental Relations Cummins University of California ORNL Tech Transfer Jet Propulsion Laboratory (JPL) Eastman Chemical Company Sandia National Laboratories Lawrence Livermore National Laboratory Oak Ridge National Laboratory

475

Transfers | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Transfers Transfers Transfers Transfer means a change of an employee, from one Federal government branch (executive, legislative, judicial) to another or from one agency to another without a break in service of 1 full work day. Below are a few tips to better assist you when you transer agencies: If you have any dependents you must complete a standard Form 2809 during new employee orientation as this information does not transfer over automatically. You will not be able to change your coverage until open season or a life changing event occurs. At the time of new employee orientation you must provide your most recent leave and earning statement (LES) so that your leave may be updated accordingly. If you do not provide us with this document it will take approximately 6 weeks before your annual and sick leave is updated.

476

Data Transfer Examples  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

» Data Transfer Examples » Data Transfer Examples Data Transfer Examples Moving data to Projectb Projectb is where data should be written from jobs running on the cluster or Gpints. There are intermediate files or bad results from a run that didn't work out that don't need to be saved. By running these jobs in the SCRATCH areas, these files will be deleted for you by the puge. If you run in the SANDBOX, you will have to clean up after yourselves. Batch Scheduled Transfers Use any queues to schedule jobs that move data to Projectb. A basic transfer script is here: kmfagnan@genepool12 ~ $ cat data_to_projb.sh #!/bin/bash -l #$ -N data2projb /projectb/scratch// kmfagnan@genepool12 ~ $ qsub data_to_projb.sh

477

Efficient Retransmission Methods in Wireless MAC Protocol for Multicast  

Science Journals Connector (OSTI)

Recent studies on reliable wireless multicast have focused on sending acknowledgement packets from all member stations to the source. Although these studies provide methods of improving the reliability, there have not been any studies on retransmission ... Keywords: MAC, Multicast, Retransmission, Wireless

Sung Won Kim; Byung-Seo Kim; Randy L. Ekl

2012-04-01T23:59:59.000Z

478

ABHINAV MURALI ACES-205,Multimedia Wireless Networks Lab  

E-Print Network [OSTI]

(GSM) networks Linearly Polarized Micro strip Stacked Patch Antenna for GPS · Designed and fabricated a linearlyABHINAV MURALI ACES-205,Multimedia Wireless Networks Lab Department of Electrical Engineering) EXPERIENCE Multimedia Wireless Networks Lab, IIT Kanpur July,2012 - Present Project Associate · Currently

Jagannatham, Aditya K.

479

Periodic Constraint-Based Control Using Dynamic Wireless Sensor Scheduling  

E-Print Network [OSTI]

Periodic Constraint-Based Control Using Dynamic Wireless Sensor Scheduling James Weimer, Jos´e Ara´ujo, Aitor Hernandez and Karl Henrik Johansson Abstract-- Constraint-based control over wireless sensor net- works (WSNs) require control strategies that achieve a desired closed-loop system performance while

Johansson, Karl Henrik

480

1569174510 1 Abstract--Wireless networking technologies permit a great  

E-Print Network [OSTI]

there is more potential for abuse and misuse of these services. In this work we find the uptake of wireless teams in different areas of England and Wales, in the United Kingdom (UK). Index Terms-- Internet, Networks, Security, Wireless LAN I. INTRODUCTION IRELESS (Wi-Fi) Internet access is now commonplace among

Grout, Vic

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to obtain the most current and comprehensive results.


481

ESTR -Energy Saving Token Ring Protocol for Wireless Sensor Networks  

E-Print Network [OSTI]

ESTR - Energy Saving Token Ring Protocol for Wireless Sensor Networks Faruk Bagci, Theo Ungerer a long lifetime of the sensor network and the application it is important to save energy. A sensor node control (MAC) protocol for wireless sensor networks, called Energy Saving Token Ring Protocol (ESTR). ESTR

Ungerer, Theo

482

Energy Attacks and Defense Techniques for Wireless Systems  

E-Print Network [OSTI]

systems, where energy is the most critical constraint to life- time and reliability. We for the first time propose a hardware- based energy attack, namely energy hardware Trojans (HTs), which can be well hidden Security Keywords Wireless security, hardware Trojan, leakage energy 1. INTRODUCTION Wireless communication

Potkonjak, Miodrag

483

Energy Consumption in Coded Queues for Wireless Information Exchange  

E-Print Network [OSTI]

Energy Consumption in Coded Queues for Wireless Information Exchange Jasper Goseling, Richard J customers. We use this relation to ob- tain bounds on the energy consumption in a wireless information, for example, from the observations in [3] that using network coding can reduce the energy consumption

Boucherie, Richard J.

484

Energy Harvesting in Wireless Communications Communicating with Energy  

E-Print Network [OSTI]

Energy Harvesting in Wireless Communications Communicating with Energy Harvesting Transmitters Tech, utilizing strain Wireless networking with energy harvesting nodes: · Green, self-sufficient nodes, · Extended network lifetime, · Smaller nodes with smaller batteries, · Very limited and varying energy

Smith, Adam D.

485

Energy Efficiency of Encryption Schemes Applied to Wireless Sensor Networks  

E-Print Network [OSTI]

Energy Efficiency of Encryption Schemes Applied to Wireless Sensor Networks Xueying Zhang, Howard M (ICC 2010), Cape Town, South Africa, May 2010, and "Energy Efficiency of Symmetric Key Cryptographic In this paper, we focus on the energy efficiency of secure communication in wireless sensor networks (WSNs). Our

Heys, Howard

486

An Energy-efficient Wireless Sensor Network for Precision Agriculture  

E-Print Network [OSTI]

An Energy-efficient Wireless Sensor Network for Precision Agriculture Herman Sahota Ratnesh Kumar and control technologies in application areas such as precision agriculture. We design MAC and Network layers for a wireless sensor network deployed for a precision agriculture application which requires periodic collection

Kumar, Ratnesh

487

Graphene-enabled Wireless Networks-on-Chip (Invited Paper)  

E-Print Network [OSTI]

Graphene-enabled Wireless Networks-on-Chip (Invited Paper) Ignacio Llatser, Sergi Abadal, Albert,abadal,amestres,acabello}@ac.upc.edu, eduard.alarcon@upc.edu Abstract--Graphene-enabled Wireless Communications (GWC) advocate for the use of graphene-based plasmonic antennas, or graphennas, which take advantage of the plasmonic properties

Politècnica de Catalunya, Universitat

488

Review: A survey of intrusion detection in wireless network applications  

Science Journals Connector (OSTI)

Information systems are becoming more integrated into our lives. As this integration deepens, the importance of securing these systems increases. Because of lower installation and maintenance costs, many of these systems are largely networked by wireless ... Keywords: Classification, Intrusion detection, Security, Wireless networks

Robert Mitchell, Ing-Ray Chen

2014-04-01T23:59:59.000Z

489

Sustainability of Self-Configuring Wireless Sensor Bozena Kaminska  

E-Print Network [OSTI]

Sustainability of Self-Configuring Wireless Sensor Networks Bozena Kaminska Simon Fraser University monitoring and security. Those applications impose requirements for sustained, reliable, and fault-tolerant operation. We introduce a new ad-hoc wireless architecture in which forwarding is based on associativity

Gburzynski, Pawel

490

What Is the Use of Collision Detection (in Wireless Networks)?  

E-Print Network [OSTI]

is too pessimistic. Most wireless devices can distinguish at least four states: (i) either the wireless, or it is silently listening, usually allowing it to differentiate between the other three states: (ii) the media the listening node can sense that there are transmissions happening, e.g. there is energy on the channel

491

Approximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks  

E-Print Network [OSTI]

and a set of destination nodes, the problem is to build a minimum-energy multicast tree for the requestApproximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks Weifa Liang, Senior Member, IEEE Abstract--A wireless ad hoc network consists of mobile nodes that are equipped with energy

Liang, Weifa

492

Wireless Sensor Networks for Monitoring of Large Public Buildings  

E-Print Network [OSTI]

for a communication infrastructure set-up. Using energy-conservation techniques (putting nodes to sleep whenWireless Sensor Networks for Monitoring of Large Public Buildings Murat Demirbas Department potential, monitoring of large public buildings is a significant emerging application area for wireless

Demirbas, Murat

493

Image Fusion for an EOD Robot Wireless Visual Module  

Science Journals Connector (OSTI)

This paper is concerned with the design of a visual module, which employs a novel Principal Components Analysis (PCA) based algorithm to fuse collected multi-focus images. The data transmission is performed using wireless communication. Simulation results ... Keywords: Explosive Ordance Disposal, multi-focus image fusion, robotics, wireless

Hongyuan Jing; Tanya Vladimirova

2013-09-01T23:59:59.000Z

494

Multihop Wireless Networks: What's Wrong With Min Hopcount?  

E-Print Network [OSTI]

is bimodal ­ Links are either "good", or "bad" · All "good" links are equivalent ­ Sufficient condition for success · What about wireless? #12;Indoor Wireless Network 5th floor 6th floor 802.11b radios (fixed tx

495

Utility Maximization for Delay Constrained QoS in Wireless  

E-Print Network [OSTI]

Utility Maximization for Delay Constrained QoS in Wireless I-Hong Hou CSL and Department of CS of utility maxi- mization for clients with delay based QoS requirements in wireless networks. We adopt that the utility of a client is a function of the timely throughput it obtains. We treat the timely throughput

496

Handover Performance of HVAC Duct Based Indoor Wireless Networks  

E-Print Network [OSTI]

Handover Performance of HVAC Duct Based Indoor Wireless Networks A. E. Xhafa, P. Sonthikorn, and O in indoor wireless net- works (IWN) that use heating, ventilation, and air conditioning (HVAC) ducts.e., new call blocking and handover dropping probabilities, of an IWN that uses HVAC ducts are up to 6

Stancil, Daniel D.

497

Application Level Energy and Performance Measurements in a Wireless LAN  

E-Print Network [OSTI]

Application Level Energy and Performance Measurements in a Wireless LAN Markus Tauber, Saleem N conclusions about the energy efficiency of transmissions in a WLAN cell. Our measurements have allowed us an experimental evaluation of energy usage and performance in a wireless LAN cell based on a testbed using the 5

Bhatti, Saleem N.

498

Graphene-enabled Wireless Communication for Massive Multicore Architectures  

E-Print Network [OSTI]

Graphene-enabled Wireless Communication for Massive Multicore Architectures Sergi Abadal, Eduard. This goal is feasible by using graphene-based planar antennas, which can radiate signals at the Terahertz, this is the first work that discusses the utilization of graphene-enabled wireless communication for massive

Cabellos-Aparicio, Albert

499

Secure neighbor discovery in wireless networks: formal investigation of possibility  

Science Journals Connector (OSTI)

Wireless communication enables a broad spectrum of applications, ranging from commodity to tactical systems. Neighbor discovery (ND), that is, determining which devices are within direct radio communication, is a building block of network protocols ... Keywords: relay attack, secure neighbor discovery, wireless networks security

Marcin Poturalski; Panos Papadimitratos; Jean-Pierre Hubaux

2008-03-01T23:59:59.000Z

500

Network Electricity Use Associated with Wireless Personal Digital Assistants  

E-Print Network [OSTI]

Network Electricity Use Associated with Wireless Personal Digital Assistants Jonathan Koomey1 the widely cited claim that the network electricity use associated with a wireless personal digital assistant PDA is equal to the electricity consumed by a refrigerator. It compiles estimates of the data flows

Kammen, Daniel M.