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We encourage you to perform a real-time search of NLEBeta
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1

NOVEL CO2-THICKENERS FOR IMPROVED MOBILITY CONTROL  

SciTech Connect (OSTI)

The first carbon dioxide thickeners have been successfully designed. Each thickener is characterized by a highly carbon dioxide-phobic functionality that imparts CO{sub 2}-solubility and a carbon dioxide-phobic group that facilitates viscosity-enhancing intermolecular associations. The design of each thickener required that appropriate balance of these groups to yield a compound that was at least several weight percent soluble in CO{sub 2} and capable of thickening the carbon dioxide by a factor of 2-20. Four types of thickeners were identified, fluoroacrylate-styrene copolymers (polyFAST), fluorinated telechelic ionomers, semi-fluorinated trialkyltin fluorides and small, fluorinated hydrogen-bonding compounds. Although significant viscosity increases (e.g. doubling the viscosity) were evidenced for each thickener during falling cylinder viscometry analysis, the polyFAST thickener provided the most dramatic increases at dilute concentration. PolyFAST is a bulk-polymerized, random copolymer of fluoroacrylate and styrene with a number-average molecular weight of about 500,000. It appears as a white, slightly waxy solid at ambient conditions. The fluoroacrylate enhances the CO{sub 2} solubility, while the styrene promotes intermolecular stacking of the aromatic groups. Although concentrations between 20-29 mol% styrene yield a thickener, the optimal composition of polyFAST for thickening was 29mol% styrene and 71mol% fluoroacrylate. Mobility measurements with a Berea sandstone core indicated that at a superficial velocity of one foot per day, a 0.5wt% concentration of 29%styrene--71%fluoroacrylate polyFAST tripled the viscosity. At concentrations of 1% and 1.5wt%, the CO{sub 2} viscosity increased by a factor of 8 and 19, respectively. If lower proportions of styrene are used, the compound will dissolve more readily in carbon dioxide but the viscosity enhancement will diminish. At higher proportions of styrene, the CO{sub 2} solubility decreases and the thickening capability also decreased, apparently due to the increased number of non-viscosity enhancing intramolecular interactions between the aromatic groups. The high price, environmental persistence, and lack of availability of bulk amounts of the fluoroacrylate monomer guided our final efforts of this work (and all of our efforts in its continuation) toward the development of inexpensive non-fluorous compounds. We have therefore initiated the design highly CO{sub 2} soluble polymers that can replace the fluoroacrylate. These hydrocarbon-based CO{sub 2}-philic compounds will then be incorporated into the structure of a compound that contains CO{sub 2}-phobic associating groups, yielding a commercial thickener.

Robert M. Enick; Eric J. Beckman; Andrew Hamilton

2001-10-01T23:59:59.000Z

2

MObile Technology for Improved Family Planning: update to randomised controlled trial protocol  

Science Journals Connector (OSTI)

This update outlines changes to the MObile Technology for Improved Family Planning study statistical analysis plan and plans for long-term follow-up. These changes result from obtaining additional funding and ...

Chris Smith; Thoai D Ngo; Phil Edwards; Caroline Free

2014-11-01T23:59:59.000Z

3

COMBINED MICROBIAL SURFACTANT-POLYMER SYSTEM FOR IMPROVED OIL MOBILITY AND CONFORMANCE CONTROL  

SciTech Connect (OSTI)

Many domestic oil fields are facing abandonment even though they still contain two-thirds of their original oil. A significant number of these fields can yield additional oil using advanced oil recovery (AOR) technologies. To maintain domestic oil production at current levels, AOR technologies are needed that are affordable and can be implemented by the independent oil producers of the future. Microbial enhanced oil recovery (MEOR) technologies have become established as cost-effective solutions for declining oil production. MEOR technologies are affordable for independent producers operating stripper wells and can be used to extend the life of marginal fields. The demonstrated versatility of microorganisms can be used to design advanced microbial systems to treat multiple production problems in complex, heterogeneous reservoirs. The proposed research presents the concept of a combined microbial surfactant-polymer system for advanced oil recovery. The surfactant-polymer system utilizes bacteria that are capable of both biosurfactant production and metabolically-controlled biopolymer production. This novel technology combines complementary mechanisms to extend the life of marginal fields and is applicable to a large number of domestic reservoirs. The research project described in this report was performed by Bio-Engineering Inc., a woman owned small business, Texas A&M University and Prairie View A&M University, a Historically Black College and University. This report describes the results of our laboratory work to grow microbial cultures, the work done on recovery experiments on core rocks, and computer simulations. We have selected two bacterial strains capable of producing both surfactant and polymers. We have conducted laboratory experiments to determine under what conditions surfactants and polymers can be produced from one single strain. We have conduct recovery experiments to determine the performance of these strains under different conditions. Our results show a significant influence of nutrient regime on alternate production of surfactants or polymers for a Bacillus licheniformis strain, NIPER 1A. The main conclusion of this work is that NIPER 1A can produce both surfactant and polymer by nutrient regime manipulation. Our experiments proved that this property leads to improved oil recovery by increasing alternatively, oil mobility and conformance control.

Jorge Gabitto; Maria Barrufet

2005-08-01T23:59:59.000Z

4

Automating Internal Control at a Coffee Cooperative using Mobile Phones Improves Efficiency and Accountability  

E-Print Network [OSTI]

by capitalizing their quality advantage, sustainable growing practices and social impact. Many of these rely cooperatives monitor the growing practices of their members through internal control systems, ensuring for internal control at a coffee co- operative. Our goals were to improve the efficiency of this process

Parikh, Tapan S.

5

Chemical systems for improved oil recovery: Phase behavior, oil recovery, and mobility control studies  

SciTech Connect (OSTI)

Selected surfactant systems containing a series of ethoxylated nonionic surfactants in combination with an anionic surfactant system have been studied to evaluate phase behavior as well as oil recovery potential. These experiments were conducted to evaluate possible improved phase behavior and overall oil recovery potential of mixed surfactant systems over a broad range of conditions. Both polyacrylamide polymers and Xanthan biopolymers were evaluated. Studies were initiated to use a chemical flooding simulation program, UTCHEM, to simulate oil recovery for laboratory and field applications and evaluate its use to simulate oil saturation distributions obtained in CT-monitoring of oil recovery experiments. The phase behavior studies focused on evaluating the effect of anionic-nonionic surfactant proportion on overall phase behavior. Two distinct transition behaviors were observed, depending on the dominant surfactant in the overall system. The first type of transition corresponded to more conventional behavior attributed to nonionic-dominant surfactant systems. This behavior is manifested by an oil-water-surfactant system that inverts from a water-external (highly conducting) microemulsion to an oil-external (nonconducting) one, as a function of temperature. The latter type which inverts in an opposite manner can be attributed to the separation of the anionic-nonionic mixtures into water- and oil-soluble surfactants. Both types of transition behavior can still be used to identify relative proximity to optimal areas. Determining these transition ranges provided more insight on how the behavior of these surfactant mixtures was affected by altering component proportions. Efforts to optimize the chemical system for oil displacement experiments were also undertaken. Phase behavior studies with systems formulated with biopolymer in solution were conducted.

Llave, F.; Gall, B.; Gao, H., Scott, L., Cook, I.

1995-09-01T23:59:59.000Z

6

Environmental Technology Verification of Mobile Sources Control...  

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

Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine...

7

Improved Mobility Control for Carbon Dioxide (CO{sub 2}) Enhanced Oil Recovery Using Silica-Polymer-Initiator (SPI) Gels  

SciTech Connect (OSTI)

SPI gels are multi-component silicate based gels for improving (areal and vertical) conformance in oilfield enhanced recovery operations, including water-floods and carbon dioxide (CO{sub 2}) floods, as well as other applications. SPI mixtures are like-water when pumped, but form light up to very thick, paste-like gels in contact with CO{sub 2}. When formed they are 3 to 10 times stronger than any gelled polyacrylamide gel now available, however, they are not as strong as cement or epoxy, allowing them to be washed / jetted out of the wellbore without drilling. This DOE funded project allowed 8 SPI field treatments to be performed in 6 wells (5 injection wells and 1 production well) in 2 different fields with different operators, in 2 different basins (Gulf Coast and Permian) and in 2 different rock types (sandstone and dolomite). Field A was in a central Mississippi sandstone that injected CO{sub 2} as an immiscible process. Field B was in the west Texas San Andres dolomite formation with a mature water-alternating-gas miscible CO{sub 2} flood. Field A treatments are now over 1 year old while Field B treatments have only 4 months data available under variable WAG conditions. Both fields had other operational events and well work occurring before/ during / after the treatments making definitive evaluation difficult. Laboratory static beaker and dynamic sand pack tests were performed with Ottawa sand and both fields’ core material, brines and crude oils to improve SPI chemistry, optimize SPI formulations, ensure SPI mix compatibility with field rocks and fluids, optimize SPI treatment field treatment volumes and methods, and ensure that strong gels set in the reservoir. Field quality control procedures were designed and utilized. Pre-treatment well (surface) injectivities ranged from 0.39 to 7.9 MMCF/psi. The SPI treatment volumes ranged from 20.7 cubic meters (m{sup 3}, 5460 gallons/ 130 bbls) to 691 m{sup 3} (182,658 gallons/ 4349 bbls). Various size and types of chemical/ water buffers before and after the SPI mix ensured that pre-gelled SPI mix got out into the formation before setting into a gel. SPI gels were found to be 3 to 10 times stronger than any commercially available cross-linked polyacrylamide gels based on Penetrometer and Bulk Gel Shear Testing. Because of SPI’s unique chemistry with CO{sub 2}, both laboratory and later field tests demonstrated that multiple, smaller volume SPI treatments maybe more effective than one single large SPI treatment. CO{sub 2} injectivities in injection well in both fields were reduced by 33 to 70% indicating that injected CO{sub 2} is now going into new zones. This reduction has lasted 1+ year in Field A. Oil production increased and CO{sub 2} production decreased in 5 Field A production wells, offsets to Well #1 injector, for a total of about 2,250 m{sup 3} (600,000 gallons/ 14,250 bbls) of incremental oil production- a $140 / SPI bbl return. Treated marginal production well, Field A Well #2, immediately began showing increased oil production totaling 238 m{sup 3} (63,000 gallons/ 1500 BBLs) over 1 year and an immediate 81% reduced gas-oil ratio.

Oglesby, Kenneth

2014-01-31T23:59:59.000Z

8

Microbial controls on metal ion mobility  

E-Print Network [OSTI]

In this dissertation, the biogeochemical controls on metal mobility in the subsurface are examined; specifically, the release of metals from buried mineralization, the transport of metals through overburden, and the ...

Leslie, Karla Louise

2012-12-31T23:59:59.000Z

9

Controlled mobility in sensor networks  

E-Print Network [OSTI]

between speed control and job scheduling subproblems . . .K. Gupta. Speed control and scheduling of data mules inselection, Speed control, and Job scheduling) and addresses

Sugihara, Ryo

2009-01-01T23:59:59.000Z

10

Portable control device for networked mobile robots  

DOE Patents [OSTI]

A handheld control device provides a way for controlling one or multiple mobile robotic vehicles by incorporating a handheld computer with a radio board. The device and software use a personal data organizer as the handheld computer with an additional microprocessor and communication device on a radio board for use in controlling one robot or multiple networked robots.

Feddema, John T. (Albuquerque, NM); Byrne, Raymond H. (Albuquerque, NM); Bryan, Jon R. (Edgewood, NM); Harrington, John J. (Albuquerque, NM); Gladwell, T. Scott (Albuquerque, NM)

2002-01-01T23:59:59.000Z

11

Herbert: a motion-controlled mobile game  

Science Journals Connector (OSTI)

Smartphone games lack the hardware interface afforded by other gaming media like controllers for consoles, keyboard and mouse for PCs, joysticks and buttons on arcade cabinets, etc. As such, many popular games focus on puzzle mechanics using the touch ... Keywords: accelerometer, chasing, intuitive controls, kiting, mobile devices, motion controls, shake, skill game

Alexander M. Duff, Jun Ma, Shannon Sepelak, Alberto Uriarte, Wenjie Wu, Jichen Zhu

2014-10-01T23:59:59.000Z

12

Erratum: Formation Control of Multiple Mobile Robots Systems  

Science Journals Connector (OSTI)

The paper entitled “Formation Control of Multiple Mobile Robots Systems” by Zhanfeng Li, Youliang Ma...

Zhanfeng Li; Youliang Ma; Tong Ren

2008-01-01T23:59:59.000Z

13

Obstacle Avoidance for Trajectory Tracking Control of Wheeled Mobile Robots  

Science Journals Connector (OSTI)

The wheeled mobile robots used in the flexible manufacturing systems act ... proposes a new control method for the wheeled mobile robots movement in the presence of static and...

R?zvan ?olea; Daniela Cristina Cernega

2013-01-01T23:59:59.000Z

14

Remote Control of Home Automation Systems with Mobile Devices  

Science Journals Connector (OSTI)

Remote control based on mobile devices as mobile phones or PDA’s, is considered more and more useful in many computerised applications. This paper deals with the implementation of functions, based on mobile devic...

Luca Tarrini; Rolando Bianchi Bandinelli…

2002-01-01T23:59:59.000Z

15

Mobile health, exercise and metabolic risk: a randomized controlled trial  

Science Journals Connector (OSTI)

It was hypothesized that a mobile health (mHealth) intervention would elicit greater improvements in systolic...

Robert J Petrella; Melanie I Stuckey; Sheree Shapiro; Dawn P Gill

2014-10-01T23:59:59.000Z

16

Improving Data Forwarding in Mobile Social Networks with Infrastructure Support  

E-Print Network [OSTI]

Networks (MSNs) by taking the hybrid underlying networks with infrastructure support into consideration-life applications. In reality, the underlying networks are usually hybrid with infrastructure support. In some areasImproving Data Forwarding in Mobile Social Networks with Infrastructure Support: A Space

Stojmenovic, Ivan

17

Tandem robot control system and method for controlling mobile robots in tandem  

SciTech Connect (OSTI)

A control system for controlling mobile robots provides a way to control mobile robots, connected in tandem with coupling devices, to navigate across difficult terrain or in closed spaces. The mobile robots can be controlled cooperatively as a coupled system in linked mode or controlled individually as separate robots.

Hayward, David R. (Albuquerque, NM); Buttz, James H. (Albuquerque, NM); Shirey, David L. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

18

LETTER TO THE EDITOR Bacterial cooperation controlled by mobile  

E-Print Network [OSTI]

LETTER TO THE EDITOR Bacterial cooperation controlled by mobile elements: kin selection online 27 July 2011 Genes involved in bacterial cooperation and virulence are overrepresented on mobile elements (Nogueira et al., 2009). This highlights the importance of gene mobility in bacterial social

Rankin, Daniel

19

Advanced mobile networking, sensing, and controls.  

SciTech Connect (OSTI)

This report describes an integrated approach for designing communication, sensing, and control systems for mobile distributed systems. Graph theoretic methods are used to analyze the input/output reachability and structural controllability and observability of a decentralized system. Embedded in each network node, this analysis will automatically reconfigure an ad hoc communication network for the sensing and control task at hand. The graph analysis can also be used to create the optimal communication flow control based upon the spatial distribution of the network nodes. Edge coloring algorithms tell us that the minimum number of time slots in a planar network is equal to either the maximum number of adjacent nodes (or degree) of the undirected graph plus some small number. Therefore, the more spread out that the nodes are, the fewer number of time slots are needed for communication, and the smaller the latency between nodes. In a coupled system, this results in a more responsive sensor network and control system. Network protocols are developed to propagate this information, and distributed algorithms are developed to automatically adjust the number of time slots available for communication. These protocols and algorithms must be extremely efficient and only updated as network nodes move. In addition, queuing theory is used to analyze the delay characteristics of Carrier Sense Multiple Access (CSMA) networks. This report documents the analysis, simulation, and implementation of these algorithms performed under this Laboratory Directed Research and Development (LDRD) effort.

Feddema, John Todd; Kilman, Dominique Marie; Byrne, Raymond Harry; Young, Joseph G.; Lewis, Christopher L.; Van Leeuwen, Brian P.; Robinett, Rush D. III; Harrington, John J.

2005-03-01T23:59:59.000Z

20

Student use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile Technology In CiCS (Corporate Information and Computing Services) we are always looking to improve our services.  

E-Print Network [OSTI]

Page 1 Student use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile Technology In CiCS (Corporate Information and Computing Services) we are always looking to improve our services. We are interested in your use of mobile technology (phones

Martin, Stephen John

Note: This page contains sample records for the topic "improved mobility control" 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

Finite-time cascaded tracking control approach for mobile robots  

Science Journals Connector (OSTI)

Abstract This paper develops a new control approach for trajectory tracking of mobile robots. For the purpose of tracking trajectory, the error dynamics of a mobile robot are divided into a first-order subsystem and a second-order subsystem by using a cascaded control design. Firstly, a global finite-time control law of the angular velocity is designed for the first-order system in order to stabilize the angle error of mobile robots. Subsequently, a finite-time sliding mode control law of forward velocity is synthesized, which guarantees the global stability of the second-order subsystem. Furthermore, the global uniform stability of the whole closed-loop system is analyzed by employing cascaded control theory, and some sufficient conditions are derived. Finally, the proposed control algorithm is applied to mobile robots, where simulation results demonstrate good convergence and performance.

Yangming Zhang; Guorong Liu; Biao Luo

2014-01-01T23:59:59.000Z

22

Literature Review of Mobility Control Methods for CO2  

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

great insight and leadership in the areas of mobility and conformance control in gas and oil flooding, although much work remains to make the technology practical. This work was...

23

Formation control of multiple mobile robots utilising synchronisation approach  

Science Journals Connector (OSTI)

In this paper, a new synchronous control rule is proposed for multiple mobile robot trajectories tracking while maintaining time varying formation. Each robot is controlled to track the desired path while its motion is synchronised with the two neighbouring robots to perform and maintain a desired time-varying formation. The dynamic model of the wheeled mobile robot is derived and divided into a translational and rotational dynamic model. A new synchronous translational controller is proposed to guarantee the asymptotic stability of both position and synchronisation errors. A simulation result of 20 robots has been conducted to validate the effectiveness of the proposed synchronous controller in the time-varying formation tasks.

Ibrahim M.H. Sanhoury; Shamsudin H.M. Amin; Abdul Rashid Husain

2013-01-01T23:59:59.000Z

24

8 - Mobile Robot Control IV: Fuzzy and Neural Methods  

Science Journals Connector (OSTI)

Fuzzy logic systems (or, simply, fuzzy systems, FSs) and neural networks are universal approximators, that is, they can approximate any nonlinear function (mapping) with any desired accuracy, and have found wide application in the identification, planning, and model-free control of complex nonlinear systems, such as robotic systems and industrial processes. Fuzzy logic offers a linguistic (approximate) way of drawing conclusions from uncertain data, and neural networks offer the capability of learning and training with or without a teacher (supervisor). The objectives of this chapter are the following: (i) to provide a brief introduction to neural networks and fuzzy systems, (ii) to derive and discuss the general structure of fuzzy and neural robot controllers, (iii) to provide the details of mobile (nonholonomic) fuzzy tracker controller design, (iv) to fuzzy the model-based sliding mode controller and apply it to mobile robots, and (v) to solve the mobile adaptive tracking controller design problem using multilayer perceptrons and radial basis function neural networks.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

25

Using adaptive interfaces to improve mobile map-based visualisation  

Science Journals Connector (OSTI)

Visualising map-based data on mobile devices presents many challenges. Small displays, comparatively slow hardware and awkward interaction techniques all combine to make mobile map-based visualisations difficult to design and often frustrating to use. ... Keywords: adaptive user interfaces, map-based visualisation, mobile visualisation

Bradley van Tonder; Janet Wesson

2008-10-01T23:59:59.000Z

26

9 - Mobile Robot Control V: Vision-Based Methods  

Science Journals Connector (OSTI)

Vision is an important robotic sensor since it can be used for environment measurement without physical contact. Visual robot control or visual servoing is a feedback control methodology that uses one or more vision sensors (cameras) to control the motion of the robot. Specifically, the control inputs for the robot motors are produced by processing image data (typically, extraction of contours, features, corners, and other visual primitives). In robotic manipulators, the purpose of visual control is to control the pose of the robot’s end-effector relative to a target object or a set of target features. In mobile robots, the vision controller’s task is to control the vehicle’s pose with respect to some landmarks. The objectives of this chapter are (i) to present the basic aspects of visual servoing (camera visual transformations, image Jacobian matrix), (ii) to discuss the position-based and image-based visual-control problems, (iii) to apply visual servoing to a number of selected mobile robot control problems, and (iv) to study mobile robot visual servoing using omnidirectional vision.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

27

Application of Parallel Processing to Intelligent Control of Mobile Robots  

E-Print Network [OSTI]

to meetfuture needs. Key words: Mobile Robots, Parallel Processing, Intelligent Control, Architecture. 1 to navigate its environment, build or update maps, plan and execute actions, and adapt its behaviour to envir requires multi-processorarchitectures to bear the burden of processing loads. Such computer architectures

Hu, Huosheng

28

Modular multivariable control improves hydrocracking  

SciTech Connect (OSTI)

Modular multivariable control (MMC), a system of interconnected, single process variable controllers, can be a user-friendly, reliable and cost-effective alternative to centralized, large-scale multivariable control packages. MMC properties and features derive directly from the properties of the coordinated controller which, in turn, is based on internal model control technology. MMC was applied to a hydrocracking unit involving two process variables and three controller outputs. The paper describes modular multivariable control, MMC properties, tuning considerations, application at the DCS level, constraints handling, and process application and results.

Chia, T.L.; Lefkowitz, I. [ControlSoft, Inc., Cleveland, OH (United States); Tamas, P.D. [Marathon Oil Co., Robinson, IL (United States)

1996-10-01T23:59:59.000Z

29

Surfactant Based Enhanced Oil Recovery and Foam Mobility Control  

SciTech Connect (OSTI)

Surfactant flooding has the potential to significantly increase recovery over that of conventional waterflooding. The availability of a large number of surfactant structures makes it possible to conduct a systematic study of the relation between surfactant structure and its efficacy for oil recovery. A mixture of two surfactants was found to be particularly effective for application in carbonate formations at low temperature. The mixture is single phase for higher salinity or calcium concentrations than that for either surfactant used alone. This makes it possible to inject the surfactant slug with polymer close to optimal conditions and yet be single phase. A formulation has been designed for a particular field application. It uses partially hydrolyzed polyacrylamide for mobility control. The addition of an alkali such as sodium carbonate makes possible in situ generation of naphthenic soap and significant reduction of synthetic surfactant adsorption. The design of the process to maximize the region of ultra-low IFT takes advantage of the observation that the ratio of soap to synthetic surfactant is a parameter in the conditions for optimal salinity. Even for a fixed ratio of soap to surfactant, the range of salinity for low IFT was wider than that reported for surfactant systems in the literature. Low temperature, forced displacement experiments in dolomite and silica sandpacks demonstrate that greater than 95% recovery of the waterflood remaining oil is possible with 0.2% surfactant concentration, 0.5 PV surfactant slug, with no alcohol. Compositional simulation of the displacement process demonstrates the role of soap/surfactant ratio on passage of the profile through the ultralow IFT region, the importance of a wide salinity range of low IFT, and the importance of the viscosity of the surfactant slug. Mobility control is essential for surfactant EOR. Foam is evaluated to improve the sweep efficiency of surfactant injected into fractured reservoirs as well as a drive fluid for ASP flooding. UTCHEM is a reservoir simulator specially designed for surfactant EOR. It has been modified to represent the effects of a change in wettability produced by surfactant injection.

George J. Hirasaki; Clarence A. Miller

2006-09-09T23:59:59.000Z

30

Graph-Theoretic Connectivity Control of Mobile  

E-Print Network [OSTI]

exploration, surveillance, and recon- naissance, to cooperative construction and manipulation. The success]­[23]. This research has given rise to connectivity or topology control algorithms that regulate the transmission power is with the Department of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA (e

Pappas, George J.

31

Mobile monolithic polymer elements for flow control in microfluidic devices  

DOE Patents [OSTI]

A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be made incorporating a cast-in-place, mobile monolithic polymer element, disposed within a microchannel, and driven by fluid pressure (either liquid or gas) against a retaining or sealing surface. The polymer elements are made by the application of lithographic methods to monomer mixtures formulated in such a way that the polymer will not bond to microchannel walls. The polymer elements can seal against pressures greater than 5000 psi, and have a response time on the order of milliseconds. By the use of energetic radiation it is possible to depolymerize selected regions of the polymer element to form shapes that cannot be produced by conventional lithographic patterning and would be impossible to machine.

Hasselbrink, Jr., Ernest F. (Saline, MI); Rehm, Jason E. (Alameda, CA); Shepodd, Timothy J. (Livermore, CA); Kirby, Brian J. (San Francisco, CA)

2005-11-11T23:59:59.000Z

32

Mobile Monolith Polymer Elements For Flow Control In Microfluidic Systems  

DOE Patents [OSTI]

A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be made incorporating a cast-in-place, mobile monolithic polymer element, disposed within a microchannel, and driven by fluid pressure (either liquid or gas) against a retaining or sealing surface. The polymer elements are made by the application of lithographic methods to monomer mixtures formulated in such a way that the polymer will not bond to microchannel walls. The polymer elements can seal against pressures greater than 5000 psi, and have a response time on the order of milliseconds. By the use of energetic radiation it is possible to depolymerize selected regions of the polymer element to form shapes that cannot be produced by conventional lithographic patterning and would be impossible to machine.

Hasselbrink, Jr., Ernest F. (Saline, MI); Rehm, Jason E. (Alameda, CA); Shepodd, Timothy J. (Livermore, CA); Kirby, Brian J. (San Francisco, CA)

2006-01-24T23:59:59.000Z

33

Improving Inventory Control Using Forecasting  

E-Print Network [OSTI]

This project studied and analyzed Electronic Controls, Inc.’s forecasting process for three high-demand products. In addition, alternative forecasting methods were developed to compare to the current forecast method. The ...

Balandran, Juan

2005-12-16T23:59:59.000Z

34

Force Feedback Stabilization for Remote Control of An Assistive Mobile Robot  

E-Print Network [OSTI]

Force Feedback Stabilization for Remote Control of An Assistive Mobile Robot H. Arioui and L. Temzi and Ph. Hoppenot. Abstract-- In this paper, we consider a bilateral control of an assistive mobile robot over communication channels with constant/variable time delays. The mobile robot is used for exploring

Paris-Sud XI, Université de

35

Research and Implementation on the Mobile Intelligent Controller for Home Automation Service  

Science Journals Connector (OSTI)

This paper described the mobile intelligence controller proving an automatic home service based on a user’s preference in a smart home. The mobile intelligence that is presented in this paper optimizes context...

Jonghwa Choi; Dongkyoo Shin; Dongil Shin

2006-01-01T23:59:59.000Z

36

5 - Mobile Robot Control I: The Lyapunov-Based Method  

Science Journals Connector (OSTI)

This chapter deals with the general problem of determining the forces and torques that must be developed by the robotic actuators in order for the robot to go at a desired position/posture, track a desired trajectory, and, in general, to perform some task with a desired quality of performance. The controllers to be presented in the chapter assume that the goal of the control and the robot dynamic parameters are precisely known, and if this goal (posture or path) is changing, the change is compatible with the environment, and risk free. The particular objectives of the chapter are (i) to provide a minimal set of general control concepts and methods that are used in robot control, (ii) to study the basic general robot controllers that are applicable to all types of robots, and (iii) to present a number of feedback controllers, designed using the Lyapunov-based control theory, for the differential drive, car-like, and omnidirectional mobile robots. These controllers refer to the problems of position (posture) tracking, trajectory tracking, parking, and leader following.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

37

Semi-autonomous Trajectory Generation for Mobile Robots with Integral Haptic Shared Control  

E-Print Network [OSTI]

Semi-autonomous Trajectory Generation for Mobile Robots with Integral Haptic Shared Control Carlo for semi-autonomous path plan- ning for mobile robots that extends the classical paradigm of bilateral shape by controlling the motion of a finite number of control points. An autonomous algorithm corrects

Paris-Sud XI, Université de

38

Johnson Controls Develops an Improved Vehicle Battery, Works...  

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

Johnson Controls Develops an Improved Vehicle Battery, Works to Cut Battery Costs in Half Johnson Controls Develops an Improved Vehicle Battery, Works to Cut Battery Costs in Half...

39

Determination, Control & Improvement of an SKA Radio  

E-Print Network [OSTI]

SKA core sites were chosen in a sparsely populated part of South Africa, in the Northern Cape ProvinceDetermination, Control & Improvement of an SKA Radio Environment in South Africa Three potential -200 -150 -100 -50 0 Frequency spectrum 150 to 174 MHz Spectralpowerflux-density Agg Signal Kalahari

Ellingson, Steven W.

40

ILC-TCP: An Interlayer Collaboration Protocol for TCP Performance Improvement in Mobile and Wireless  

E-Print Network [OSTI]

Internet has led to the optimization of network protocols to provide for a better performance. Most of the Internet traffic uses TCP, the de- facto transport layer protocol. Unfortunately, TCP performance degrades in the mobile and wireless environments. A good amount of research has been attempted to improve its performance

Helal, Abdelsalam

Note: This page contains sample records for the topic "improved mobility control" 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

Adaptive fuzzy-based motion generation and control of mobile under-actuated manipulators  

Science Journals Connector (OSTI)

In this paper, adaptive fuzzy-based motion generation and control are investigated for nonholonomic mobile manipulators with an under-actuated dyanmics model, in the presence of parametric and functional uncertainties. It is well known that the constraints ... Keywords: LQR, Mobile under-actuated manipulators, Model reference control, Optimization, Sliding mode

Zhijun Li, Chenguang Yang, Chun-Yi Su, Wenjun Ye

2014-04-01T23:59:59.000Z

42

Controls on arsenic mobility in contaminated wetland and riverbed streams  

E-Print Network [OSTI]

Arsenic mobility and transport in the environment are strongly influenced by associations with solid phases. This dissertation investigates the mechanisms affecting arsenic retention in contaminated wetland and riverbed ...

Keon, Nicole E. (Nicole Elise), 1974-

2002-01-01T23:59:59.000Z

43

Contextaware Control for Personalized Multiparty Sessions in Mobile Multihomed Systems  

E-Print Network [OSTI]

Simoes Fraunhofer FOKUS KaiserinAugustaAllee, 31 10589 Berlin, Germany +493034637218 jose.simoes@fokus.fraunhofer services with innovative approaches such as contextaware, mobile, adaptable and interactive

Pitsillides, Andreas

44

Improve corrosion control in refining processes  

SciTech Connect (OSTI)

New guidelines show how to control corrosion and environmental cracking of process equipment when processing feedstocks containing sulfur and/or naphthenic acids. To be cost competitive refiners must be able to process crudes of opportunity. These feedstocks when processed under high temperatures and pressures and alkaline conditions can cause brittle cracks and blisters in susceptible steel-fabricated equipment. Even with advances in steel metallurgy, wet H{sub 2}S cracking continues to be a problem. New research data shows that process conditions such as temperature, pH and flowrate are key factors in the corrosion process. Before selecting equipment material, operators must understand the corrosion mechanisms present within process conditions. Several case histories investigate the corrosion reactions found when refining naphthenic crudes and operating amine gas-sweetening systems. These examples show how to use process controls, inhibitors and/or metallurgy to control corrosion and environmental cracking, to improve material selection and to extend equipment service life.

Kane, R.D.; Cayard, M.S. [CLI International, Houston, TX (United States)

1995-11-01T23:59:59.000Z

45

Project management improves well control events  

SciTech Connect (OSTI)

During a well control operation, the efficient use of personnel and equipment, through good project management techniques, contributes to increased safety and ensures a quality project. The key to a successful blowout control project is to use all resources in the most efficient manner. Excessive use of resources leads to unnecessary expenditures and delays in bringing the project under control. The Kuwait well control project, which involved more than 700 blowouts, was accomplished in a much shorter time (8 months) than first estimated (5 years). This improvement partly resulted from the application of sound project management techniques. These projects were prime examples of the need for a formal project management approach to handling wild well projects. There are many examples of projects that were successful in controlling wells but were economic disasters. Only through the effective application of project management can complex well control projects be completed in reasonable time frames at reasonable cost. The paper describes team management, project scope, organizational structures, scheduling, tracking models, critical path method, and decision trees.

Oberlender, G.D. [Oklahoma State Univ., Stillwater, OK (United States); Abel, L.W. [Wild Well Control Inc., Spring, TX (United States)

1995-07-10T23:59:59.000Z

46

Novel CO{sub 2}-thickeners for improved mobility control  

SciTech Connect (OSTI)

The objective of this study was to incorporate carbon dioxide-philic functionalities into the structure of a telechelic ionomers in an attempt to design a carbon dioxide-thickener. Alkyl analogs of these end-functionalized polymers have been successfully employed in dilute concentration to increase the viscosity of organic liquids or to induce gelation. The ionic end-groups associated in solution, establishing a viscosity enhancing macromolecular structure. More dramatic viscosity changes have been attained at very dilute concentrations with low MW associating compounds than with ultra-high MW polymers. The apparent molecular weight of the associative network greatly exceeds the MW of the covalently-bounded polymer in solution, yet the relatively low molecular weight of the compound favors its solubilization.

Enick, Dr. Robert M.; Beckman, Dr. Eric J.; Hamilton, Dr. Andrew

2000-02-02T23:59:59.000Z

47

Novel CO2-Thickeners for Improved Mobility Control  

SciTech Connect (OSTI)

The objective of this contract was to design, synthesize, and characterize thickening agents for dense carbon dioxide and to evaluate their solubility and viscosity-enhancing potential in CO2.

Enick, Dr. Robert M.; Beckman, Dr. Eric J.; Hamilton, Dr. Andrew

2002-01-15T23:59:59.000Z

48

Novel CO{sub 2}-thickeners for improved mobility control  

SciTech Connect (OSTI)

The objective of this study was to design, synthesize, and characterize thickening agents for dense carbon dioxide and to evaluate their solubility and viscosity-enhancing potential in CO{sub 2}. Hydrocarbon-fluorocarbon random copolymers, sulfated hydrocarbon-fluorocarbon random copolymers, semifluorinated trialkyltin fluorides and small hydrogen-bonding compounds were evaluated. Random copolymers of styrene and heptadecafluorodecyl acrylate were characterized by high solubility ion dense carbon dioxide and the most substantial increases in solution viscosity. Falling cylinder viscometry results indicated that the 29%styrene--71%fluoroacylate bulk-polymerized copolymer induced 2--250 fold increases in viscosity at copolymer concentrations of 0.2--5.0wt%.

Enick, Dr. Robert M.; Beckman, Dr. Eric J.; Hamilton, Dr. Andrew

2000-02-02T23:59:59.000Z

49

Engagement with Social Media Platforms via Mobile Apps for Improving Quality of Personal Health Management: A Healthcare Analytics Case Study  

Science Journals Connector (OSTI)

Patient engagement in self health and wellness management has been identified as an important goal in improving health outcomes. As a result, the use of mobile and social media for health and wellness promotion is gathering considerable momentum. Several ... Keywords: Consumer Segmentation, Health Plan, Health and Wellness Management, Mobile Apps, Predictive Models, Social Media

Sinjini Mitra, Rema Padman

2014-01-01T23:59:59.000Z

50

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

51

Adaptive Control Parameters for Dispersal of Multi-Agent Mobile Ad Hoc Network (MANET) Swarms  

SciTech Connect (OSTI)

A mobile ad hoc network is a collection of independent nodes that communicate wirelessly with one another. This paper investigates nodes that are swarm robots with communications and sensing capabilities. Each robot in the swarm may operate in a distributed and decentralized manner to achieve some goal. This paper presents a novel approach to dynamically adapting control parameters to achieve mesh configuration stability. The presented approach to robot interaction is based on spring force laws (attraction and repulsion laws) to create near-optimal mesh like configurations. In prior work, we presented the extended virtual spring mesh (EVSM) algorithm for the dispersion of robot swarms. This paper extends the EVSM framework by providing the first known study on the effects of adaptive versus static control parameters on robot swarm stability. The EVSM algorithm provides the following novelties: 1) improved performance with adaptive control parameters and 2) accelerated convergence with high formation effectiveness. Simulation results show that 120 robots reach convergence using adaptive control parameters more than twice as fast as with static control parameters in a multiple obstacle environment.

Kurt Derr; Milos Manic

2013-11-01T23:59:59.000Z

52

Rough-terrain mobile robot planning and control with application to planetary exploration  

E-Print Network [OSTI]

Future planetary exploration missions will require mobile robots to perform difficult tasks in highly challenging terrain, with limited human supervision. Current motion planning and control algorithms are not well suited ...

Iagnemma, Karl David

2001-01-01T23:59:59.000Z

53

A Cartesian Cable-Suspended Robot for improving end-users' mobility in an urban environment  

Science Journals Connector (OSTI)

Abstract In the near future, the flexibility and safety of robotic systems will allow them to interact directly with a patient without the need for an operator which will, at most, have to switch a system on or off. In this new scenario, end-users will have more chance of attaining enhanced independence and comfort in their daily life, even in outdoor activities, by using a simple and safe technology. In this paper we propose Cable System for Improving Mobility (CaSIMo), which has been developed with the aim of improving the mobility of end-users in an urban environment as regards traversing architectural barriers like canals or roads, when classical solutions such as bridges cannot be adopted. The cable system has been developed for large-scale handling (or aiding transfer) for applications in urban, civil and naval environments. The main issue of the system proposed, which belongs to the class of Cartesian Cable-Suspended Robots (CCSR), is that it can provide translational motion of the suspended end-effector, and may thus be considered well suited to a number of applications including that proposed herein. In this paper we focus our attention on a spatial version designed to improve the mobility of end-users in an urban environment. In particular, modeling for kinetostatic and dynamic analyses are proposed and discussed. The proposed system does not require structures of large dimensions, and its environmental impact can thus be greatly reduced with regard to other analogous devices. Moreover, it has a low-cost design if compared to other systems such as bridges, and can be installed and removed relatively easily. A laboratory prototype of the planar version has been built for experimental tests. Dynamic simulations of the large-scale spatial version have been reported to show the engineering significance of the proposed design in both nominal operation and critical conditions, i.e. in the case of a cable breaking.

Gianni Castelli; Erika Ottaviano; Pierluigi Rea

2014-01-01T23:59:59.000Z

54

Controlling a Mobile Robotic Hand by Learning Trajectory Velocities  

E-Print Network [OSTI]

retrieving tennis balls during or after a practise session. To devise a mobile robot to perform such a task the configuration of the robot's body, wheels, hand and sensors to be taken into account when approaching target the behaviour arbitra- tion system difficult to design due to the unpredictable effect of emergent behaviours

Ward, Koren

55

Quest for Personal Control over Mobile Location Privacy Pradeep Khosla  

E-Print Network [OSTI]

live and work, offering the promise of bringing us close to the holy grail of information technology to be utilized. Many efforts have been made to get it available, as one of the key services in the ubiquitous the architecture, there is a centralized location server, where a mobile user can register and submit her location

Wu, Dapeng Oliver

56

Energy efficient and fairness improved medium access scheduling algorithms for mobile ad hoc networks;.  

E-Print Network [OSTI]

??In mobile ad hoc networks dynamically changing topologies are newlinethe direct result of the mobility of the nodes which characterize the ad hoc newlinenetworks Each… (more)

Priakanth P

2015-01-01T23:59:59.000Z

57

RELIABILITY IMPROVEMENT OF BART TRAIN CONTROL  

E-Print Network [OSTI]

2) of the BART Automatic Train Control System. BART 74-111,certain functions of the train controls that had previously2. BART vehicle automatic train control equipment. XBL 7810-

Turner, D.B.

2011-01-01T23:59:59.000Z

58

Dynamic Tracking Control of Uncertain Nonholonomic Mobile Robots  

E-Print Network [OSTI]

control techniques. The proposed controller guarantees that the tracking error converges to a small ball containing the origin. The ball's radius can be adjusted by control parameters. Uncertainties in both There has been a growing interest in the design of feedback control laws for mechanical systems

Guo, Yi

59

Direction and control adjustment for smooth motion of wheeled mobile robots  

Science Journals Connector (OSTI)

Control of wheeled mobile robots (differential or steering wheel structure) has been studied extensively in the last decades, and many control strategies were proposed for various applications. This paper will present the solutions to two issues encountered in the implementation of the controllers: over corrections of the robot's heading direction and saturation of the control efforts. The solutions to the problems and their experimental verifications are provided.

L. Huang

2010-01-01T23:59:59.000Z

60

Using Subjective Confidence to Improve Metacognitive Monitoring Accuracy and Control  

E-Print Network [OSTI]

are known as monitoring and control respectively. The relationship between accurate monitoring and improved control and performance has been borne out in multiple research studies. Unfortunately, people's metacognitive judgments are far from perfect; for low...

Miller, Tyler

2012-10-19T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

On the Use of Human Mobility Proxies for Modeling Epidemics  

E-Print Network [OSTI]

Human mobility is a key component of large-scale spatial-transmission models of infectious diseases. Correctly modeling and quantifying human mobility is critical for improving epidemic control, but may be hindered by data ...

Tizzoni, Michele

62

Collision avoidance for a mobile robot based on radial basis function hybrid force control technique  

Science Journals Connector (OSTI)

Collision avoidance is always difficult in the planning path for a mobile robot. In this paper, the virtual force field between a mobile robot and an obstacle is formed and regulated to maintain a desired distance by hybrid force control algorithm. Since uncertainties from robot dynamics and obstacle degrade the performance of a collision avoidance task, intelligent control is used to compensate for the uncertainties. A radial basis function (RBF) neural network is used to regulate the force field of an accurate distance between a robot and an obstacle in this paper and then simulation studies are conducted to confirm that the proposed algorithm is effective.

Wen Shu-Huan

2009-01-01T23:59:59.000Z

63

IMPROVED FIELDBUS CONTROL VIA MIDDLEWARE TECHNOLOGY  

E-Print Network [OSTI]

natural to combine its power with a eldbus system for home automation. This paper presents how Jini branch, they get more common in home and building automation to control simple actuators like lights medium. An EIB control network is marked by a clear structure aimed for home and building automation

Kruegel, Christopher

64

Optimizing a Mobile Robot Control System using GPU Acceleration  

E-Print Network [OSTI]

Guinness, and Fred Martin University of Massachusetts Lowell, 1 University Ave, Lowell, MA, US ABSTRACT This paper CPU on our custom robot platform. The process of profiling the ROS control program and selecting of Stark, consisting of the same chassis and sensor load-out. The primary control program for Stark

65

Distributed Extremum Seeking and Cooperative Control for Mobile Communication  

E-Print Network [OSTI]

], and most recently smart grid [6]. However, most of the existing work on cooperative control generally with a communication performance metric and extremum-seeking algorithm, such that trade off between control of communication channel is expected. For instance, metrics of communication quality such as signal-to-noise ratio

Ingram, Mary Ann

66

Dynamic Modeling and Adaptive Neural-Fuzzy Control for Nonholonomic Mobile Manipulators Moving on a Slope 1 Dynamic Modeling and Adaptive Neural-Fuzzy Control for  

E-Print Network [OSTI]

robots [7]. A robust fuzzy logic controller was devised for a robotic manipulator with uncertainties [8Dynamic Modeling and Adaptive Neural-Fuzzy Control for Nonholonomic Mobile Manipulators Moving on a Slope 1 Dynamic Modeling and Adaptive Neural-Fuzzy Control for Nonholonomic Mobile Manipulators Moving

Li, Yangmin

67

Lyapunov function-based non-linear control for two-wheeled mobile robots  

Science Journals Connector (OSTI)

This article presents a non-linear feedback control framework for two-wheeled mobile robots. The approach uses a constructive Lyapunov function which allows the formulation of a control law with asymptotic stability of the equilibrium point of the system and a computable stability region. The dynamic equations are simplified through normalisation and partial feedback linearisation. The latter allows linearisation of only the actuated coordinate. Description of the control law is complemented by the stability analysis of the closed loop dynamics of the system. The effectiveness of the method has been illustrated by its good performance and less control demand through simulations conducted for two control tasks: upright position stabilisation and velocity tracking for a statically unstable two wheeled mobile robot.

Zareena Kausar; Karl Stol; Nitish Patel

2013-01-01T23:59:59.000Z

68

Trajectory Planning and Control of an Underactuated Dynamically Stable Single Spherical Wheeled Mobile Robot  

E-Print Network [OSTI]

Trajectory Planning and Control of an Underactuated Dynamically Stable Single Spherical Wheeled is a dynamically stable mobile robot that moves on a single spherical wheel and is capable of omni- directional movement. The ballbot is an underactuated system with nonholonomic dynamic constraints. The authors propose

69

Modeling Dynamics and Exploring Control of a Single-Wheeled Dynamically Stable Mobile  

E-Print Network [OSTI]

Modeling Dynamics and Exploring Control of a Single-Wheeled Dynamically Stable Mobile Robot. It actively balances and moves on a single wheel using closed loop feedback, making it dynamically stable it a good candidate for operating in human environments. Balancing on a ball allows Ballbot to be omni

70

Topology Control and Mobility Strategy for UAV Ad-hoc Networks: A Survey  

E-Print Network [OSTI]

Topology Control and Mobility Strategy for UAV Ad-hoc Networks: A Survey Zhongliang Zhao, Torsten and software are allowing the rapid development of small unmanned aerial vehicles (UAVs), capable of per fiber-reinforce plastic materials let UAVs become an aerial platform, that can be equipped

Braun, Torsten

71

Distributing Planning and Control for Teams of Cooperating Mobile Robots  

SciTech Connect (OSTI)

This CRADA project involved the cooperative research of investigators in ORNL's Center for Engineering Science Advanced Research (CESAR) with researchers at Caterpillar, Inc. The subject of the research was the development of cooperative control strategies for autonomous vehicles performing applications of interest to Caterpillar customers. The project involved three Phases of research, conducted over the time period of November 1998 through December 2001. This project led to the successful development of several technologies and demonstrations in realistic simulation that illustrated the effectiveness of our control approaches for distributed planning and cooperation in multi-robot teams. The primary objectives of this research project were to: (1) Develop autonomous control technologies to enable multiple vehicles to work together cooperatively, (2) Provide the foundational capabilities for a human operator to exercise oversight and guidance during the multi-vehicle task execution, and (3) Integrate these capabilities to the ALLIANCE-based autonomous control approach for multi-robot teams. These objectives have been successfully met with the results implemented and demonstrated in a near real-time multi-vehicle simulation of up to four vehicles performing mission-relevant tasks.

Parker, L.E.

2004-07-19T23:59:59.000Z

72

How intense quality control improves hydraulic fracturing  

SciTech Connect (OSTI)

Not unlike the subject of Forced Closure, Intense Quality Control is probably misnamed. What actually is discussed in this article is pilot testing of the fracturing fluids actually pumped at in-situ conditions of temperature and shear. Presented here is development of the need for onsite testing, equipment used, shear and viscosity curves from several jobs showing what went wrong that would otherwise not have been known, and a discussion of borate gel fluids.

Ely, J.W. [Ely and Associates, Inc., Houston, TX (United States)

1996-11-01T23:59:59.000Z

73

Water Control and Improvement Districts (Texas) | Department of Energy  

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

Water Control and Improvement Districts (Texas) Water Control and Improvement Districts (Texas) Water Control and Improvement Districts (Texas) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Water Buying & Making Electricity Home Weatherization Solar Wind Program Info State Texas Program Type Environmental Regulations Provider Texas Commission on Environmental Quality The Texas Commission on Environmental Quality is authorized to review and

74

Demonstration of Intelligent Control and Fan Improvements in Computer Room  

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

Demonstration of Intelligent Control and Fan Improvements in Computer Room Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers Title Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers Publication Type Report Refereed Designation Unknown LBNL Report Number LBNL-6007E Year of Publication 2012 Authors Coles, Henry C., Steve E. Greenberg, and Corrine Vita Document Number LBNL-6007E Date Published 12/2012 Publisher Lawrence Berkeley National Laboratory City Berkeley, CA Keywords air distribution, building technology and urban systems department, computer room air handler, crah control, data center, data center crah, ec fan, ecm, ecm fan, fan speed control, high tech and industrial systems group, plug fan, variable frequency drive, vfd, wireless control Abstract

75

Real-time tracking control of a non-holonomic mobile robot  

Science Journals Connector (OSTI)

A novel tracking controller for real-time navigation of a non-holonomic mobile robot is presented. The proposed tracking controller is based on a backstepping model and a gated dipole model from a biological neural system. It is capable of generating smooth, bounded acceleration control signals to track a reference path. Unlike the conventional backstepping controllers, the proposed model can solve the velocity jump problem caused by a large initial tracking error. Unlike the existing tracking control methods that assume 'perfect velocity tracking', the proposed controller removes the unpractical assumption by considering the constraint of accelerations. In addition, the proposed controller can deal with complicated situations, e.g. the reference linear velocity or angular velocity is not constant. The effectiveness and efficiency of the approach are demonstrated by simulation studies.

Anmin Zhu; Simon X. Yang

2006-01-01T23:59:59.000Z

76

Mobility control and scaleup for chemical flooding. Annual report, October 1981-September 1982  

SciTech Connect (OSTI)

The ongoing objectives of this project are: (1) to determine quantitatively the effects of dispersion, relative permeabilities, apparent viscosity and inaccessible pore volume on micellar/polymer flooding, and (2) to develop numerical simulators which incorporate these and other features of the process, so that mobility control design and scaleup of the micellar/polymer flooding process can be better accomplished. Section 2 of this report includes the results for capillary desaturation experiments for low tension fluids in Berea. These results show that some residual brine remains during microemulsion flooding even at the highest capillary number obtained in this experiment. Section 2 also includes more extensive results from the dispersion and relative permeability experiments. This section also includes data which extends the dispersion and relative permeability results from the case of two-phase flow to include initial results of three-phase flow at steady state. Section 3 is a complete description of our updated simulator. Section 4 describes and gives the results of an oil recovery experiment. Section 5 compares the results of this oil recovery experiment with our simulator. The agreement is the best obtained so far. Section 6 compares our simulator with a Sloss experiment reported by Gupta. Again, the agreement is good and demonstrates the capability of the improved simulator to account for the separation of alcohol and surfactant. Section 7 contains the results of several 2-D areal simulations involving new features of the 2-D simulator reported last year. Section 8 is a list of some of the major conclusions of this simulation research. Section 9 is an SPE paper combining the results of Senol with Walsh, a Ph.D. student of Lake and Schechter. Her polymer experiments were interpreted using Walsh's geochemical simulator. 133 references, 118 figures, 21 tables.

Pope, G.A.

1984-11-01T23:59:59.000Z

77

Development of modularized airtight controller for mobile welding robot working in harsh environments  

Science Journals Connector (OSTI)

Abstract This paper proposes the design and validation of a new hermetic controller for mobile robots working in a hazardous environment. Two years ago, we obtained very successful results with regard to the development of the new mobile robot RRX, which can weld, blast, and paint double-hulled structures during the shipbuilding process. At that time, some attempts were made to design a modular and hermetic controller to secure a robust cooling performance and dustproof quality because the temperature is 40–50 °C during the summer, and such operations produce considerable amounts of metallic dust such as fumes. This naturally represents a very hazardous environment for the robot's controller, for which the temperature should be maintained at its rated level, and the body should be kept fully airtight to prevent the inflow of metallic dust. Thus, in that research, heat pipes were successfully adopted to satisfy these design constraints by dissipating the heat from the servomotor drivers and several power units without any airflow into the controller for cooling. The proposed cooling system is composed of heat pipes, cooling fins, fans, and L-shaped brackets for transferring the produced heat from the heating resources to the heat pipes. Experiments were performed in the field to obtain information on the motor driver's heating value and work site temperatures as boundary conditions of the heat transfer problem, and a modular and hermetic controller for mobile robots working in hazardous environments was successfully developed and validated. The obtained experimental results fully support the idea that this design is appropriate for the controller to maintain a stable performance in a harsh environment.

Donghun Lee

2013-01-01T23:59:59.000Z

78

Development of A Cryogenic Drift Cell Spectrometer and Methods for Improving the Analytical Figures of Merit for Ion Mobility-Mass Spectrometry Analysis  

E-Print Network [OSTI]

A cryogenic (325-80 K) ion mobility-mass spectrometer was designed and constructed in order to improve the analytical figures-of-merit for the chemical analysis of small mass analytes using ion mobility-mass spectrometry. The instrument incorporates...

May, Jody C.

2010-10-12T23:59:59.000Z

79

Transformer Thermal Modeling: Improving Reliability Using Data Quality Control  

E-Print Network [OSTI]

1 Transformer Thermal Modeling: Improving Reliability Using Data Quality Control Daniel J. Tylavsky--Eventually all large transformers will be dynamically loaded using models updated regularly from field measured data. Models obtained from measured data give more accurate results than models based on transformer

80

New imaging technique provides improved insight into controlling the plasma  

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

New imaging technique provides improved insight into controlling the plasma New imaging technique provides improved insight into controlling the plasma in fusion experiments By John Greenwald December 9, 2013 Tweet Widget Facebook Like Google Plus One Graphic representation of 2D images of fluctuating electron temperatures in a cross-section of a confined fusion plasma. Graphic representation of 2D images of fluctuating electron temperatures in a cross-section of a confined fusion plasma. A key issue for the development of fusion energy to generate electricity is the ability to confine the superhot, charged plasma gas that fuels fusion reactions in magnetic devices called tokamaks. This gas is subject to instabilities that cause it to leak from the magnetic fields and halt fusion reactions. Now a recently developed imaging technique can help researchers improve

Note: This page contains sample records for the topic "improved mobility control" 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

New imaging technique provides improved insight into controlling the plasma  

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

New imaging technique provides improved insight into controlling the plasma New imaging technique provides improved insight into controlling the plasma in fusion experiments By John Greenwald December 9, 2013 Tweet Widget Facebook Like Google Plus One Graphic representation of 2D images of fluctuating electron temperatures in a cross-section of a confined fusion plasma. Graphic representation of 2D images of fluctuating electron temperatures in a cross-section of a confined fusion plasma. A key issue for the development of fusion energy to generate electricity is the ability to confine the superhot, charged plasma gas that fuels fusion reactions in magnetic devices called tokamaks. This gas is subject to instabilities that cause it to leak from the magnetic fields and halt fusion reactions. Now a recently developed imaging technique can help researchers improve

82

WATER alert!: using mobile phones to improve community perspective on drinking water quality in South Africa  

Science Journals Connector (OSTI)

Drinking water quality, in many parts of South Africa, is far below acceptable standards. With a high number of illnesses and deaths in the country due to diarrheal diseases, the impact is critical. This research addresses the challenge of reporting ... Keywords: HCI, ICTD, South Africa, low-literate user interfaces, mobile phones, user-centered design, water quality

Deana Brown; Gary Marsden; Ulrike Rivett

2012-03-01T23:59:59.000Z

83

Control system and method for payload control in mobile platform cranes  

DOE Patents [OSTI]

A crane control system and method provides a way to generate crane commands responsive to a desired payload motion to achieve substantially pendulation-free actual payload motion. The control system and method apply a motion compensator to maintain a payload in a defined payload configuration relative to an inertial coordinate frame. The control system and method can further comprise a pendulation damper controller to reduce an amount of pendulation between a sensed payload configuration and the defined payload configuration. The control system and method can further comprise a command shaping filter to filter out a residual payload pendulation frequency from the desired payload motion.

Robinett, III, Rush D. (Tijeras, NM); Groom, Kenneth N. (Albuquerque, NM); Feddema, John T. (Albuquerque, NM); Parker, Gordon G. (Houghton, MI)

2002-01-01T23:59:59.000Z

84

Enhanced IGCC regulatory control and coordinated plant-wide control strategies for improving power ramp rates  

SciTech Connect (OSTI)

As part of ongoing R&D activities at the National Energy Technology Laboratory’s (NETL) Advanced Virtual Energy Simulation Training & Research (AVESTAR™) Center, this paper highlights strategies for enhancing low-level regulatory control and system-wide coordinated control strategies implemented in a high-fidelity dynamic simulator for an Integrated Gasification Combined Cycle (IGCC) power plant with carbon capture. The underlying IGCC plant dynamic model contains 20 major process areas, each of which is tightly integrated with the rest of the power plant, making individual functionally-independent processes prone to routine disturbances. Single-loop feedback control although adequate to meet the primary control objective for most processes, does not take into account in advance the effect of these disturbances, making the entire power plant undergo large offshoots and/or oscillations before the feedback action has an opportunity to impact control performance. In this paper, controller enhancements ranging from retuning feedback control loops, multiplicative feed-forward control and other control techniques such as split-range control, feedback trim and dynamic compensation, applicable on various subsections of the integrated IGCC plant, have been highlighted and improvements in control responses have been given. Compared to using classical feedback-based control structure, the enhanced IGCC regulatory control architecture reduces plant settling time and peak offshoots, achieves faster disturbance rejection, and promotes higher power ramp-rates. In addition, improvements in IGCC coordinated plant-wide control strategies for “Gasifier-Lead”, “GT-Lead” and “Plantwide” operation modes have been proposed and their responses compared. The paper is concluded with a brief discussion on the potential IGCC controller improvements resulting from using advanced process control, including model predictive control (MPC), as a supervisory control layer.

Mahapatra, P.; Zitney, S.

2012-01-01T23:59:59.000Z

85

ALLIANCE: An architecture for fault tolerant, cooperative control of heterogeneous mobile robots  

SciTech Connect (OSTI)

This research addresses the problem of achieving fault tolerant cooperation within small- to medium-sized teams of heterogeneous mobile robots. The author describes a novel behavior-based, fully distributed architecture, called ALLIANCE, that utilizes adaptive action selection to achieve fault tolerant cooperative control in robot missions involving loosely coupled, largely independent tasks. The robots in this architecture possess a variety of high-level functions that they can perform during a mission, and must at all times select an appropriate action based on the requirements of the mission, the activities of other robots, the current environmental conditions, and their own internal states. Since such cooperative teams often work in dynamic and unpredictable environments, the software architecture allows the team members to respond robustly and reliably to unexpected environmental changes and modifications in the robot team that may occur due to mechanical failure, the learning of new skills, or the addition or removal of robots from the team by human intervention. After presenting ALLIANCE, the author describes in detail experimental results of an implementation of this architecture on a team of physical mobile robots performing a cooperative box pushing demonstration. These experiments illustrate the ability of ALLIANCE to achieve adaptive, fault-tolerant cooperative control amidst dynamic changes in the capabilities of the robot team.

Parker, L.E.

1995-02-01T23:59:59.000Z

86

Efficient time-optimal two-corner trajectory planning algorithm for differential-driven wheeled mobile robots with bounded motor control inputs  

Science Journals Connector (OSTI)

Abstract We propose an efficient time-optimal trajectory planning algorithm for differential-driven wheeled mobile robots with bounded motor control inputs in the environment with cranked road where two corners with arbitrary angles exist. Based on dynamics for differential-driven wheeled mobile robots including actuating motors as well as on the bang–bang principle for time-optimality, we plan the time-optimal free path trajectory which unifies path planning and trajectory generation. Thus it improves total time significantly while handling obstacle avoidance. We divide our trajectory into three sections and then divide each section into an appropriate number of subsections to make five subsections in total. We introduce the concept of transition angle to solve the problem with formulating search loops efficiently. Numerical results are provided to validate the effectiveness of the proposed algorithm.

Yunjeong Kim; Byung Kook Kim

2014-01-01T23:59:59.000Z

87

International Conference on Machine Control & Guidance 2008 1 Self-configuring, Mobile Networks in the Area of  

E-Print Network [OSTI]

by a micro controller (PAN = private area network). Based on the wireless standard of ZigBee, the network1st International Conference on Machine Control & Guidance 2008 1 Self-configuring, Mobile Networks is able to independently establish networks even across huge distances, via multi-hopping. The modules act

88

Study of CO2 Mobility Control Using Cross-linked Gel Conformance Control and CO2 Viscosifiers in Heterogeneous Media  

E-Print Network [OSTI]

result, early gas breakthrough has been a very common problem in CO2-related projects, reducing the overall sweep efficiency of CO2 flooding. This research aims at improving the CO2 flood efficiency using cross-linked gel conformance control and CO2...

Cai, Shuzong

2011-10-21T23:59:59.000Z

89

Improved Controls for Fusion RF Systems. Final technical report  

SciTech Connect (OSTI)

We have addressed the specific requirements for the integrated systems controlling an array of klystrons used for Lower Hybrid Current Drive (LHCD). The immediate goal for our design was to modernize the transmitter protection system (TPS) for LHCD on the Alcator C-Mod tokamak at the MIT Plasma Science and Fusion Center (MIT-PSFC). Working with the Alcator C-Mod team, we have upgraded the design of these controls to retrofit for improvements in performance and safety, as well as to facilitate the upcoming expansion from 12 to 16 klystrons. The longer range goals to generalize the designs in such a way that they will be of benefit to other programs within the international fusion effort was met by designing a system which was flexible enough to address all the MIT system requirements, and modular enough to adapt to a large variety of other requirements with minimal reconfiguration.

Casey, Jeffrey A. [Rockfield Research Inc., Las Vegas, NV (United States)

2011-11-08T23:59:59.000Z

90

MATLAB Simulation for Mobile Robot Navigation with Hurdles in Cluttered Environment Using Minimum Rule based Fuzzy Logic Controller  

Science Journals Connector (OSTI)

Abstract In this paper concentrated on the design of a minimum rule based fuzzy-logic controller for robot navigation, and hurdles avoidance in cluttered environment, based on the Mamdani type fuzzy method. The controller has 3 inputs, and single output. This technique generates suitable heading angle maneuvers control of the autonomous vehicle which is used by the robot to reach its goal safely without any collision in cluttered environment. Simulation results show the method can be used for wheeled mobile robot moving on in cluttered environment with lot of hurdles. We present a path-planning system that can control and safely navigate robot motion in a static environment. The success of the mobile robot navigation control depends mostly on the accuracy of absolute measurements of its position, hurdle distances, goal distance, velocity, orientation, and its rate of change its heading angle. The whole navigation system has been tested in a simulation environment with satisfying results.

Anish Pandey; Dayal Ramakrushna Parhi

2014-01-01T23:59:59.000Z

91

Behaviour based planning and control of leader follower formations in wheeled mobile robots  

Science Journals Connector (OSTI)

This paper describes the development of a distributed planning and control strategy for multiple mobile robots in a leader-follower formation framework, which combines together formation planning, navigation and active obstacle avoidance. A layered formation control architecture consisting of functional behaviours based on the relative motion states of the robots, classified into two levels is developed. The supervisor level in the framework handles the higher-level missions such as formation and inter-robot communication, and the lower level deals with the dynamic control of robots during navigation. Dynamic role switching mechanism through the exchange of leadership is incorporated in this work to tackle the problem of obstacle avoidance in the follower path. A state based modelling framework, where the functional behaviours/motion states of the layered approach are modelled using the augmented finite state machine (AFSM) concept, is also presented in this paper. The proposed approach is validated through state based simulations via Simulink/Stateflow environment and experiments using commercially available robot research platforms and the results obtained are discussed.

R.M. Kuppan Chetty; M. Singaperumal; T. Nagarajan

2010-01-01T23:59:59.000Z

92

State Transition, Balancing, Station Keeping, and Yaw Control for a Dynamically Stable Single Spherical Wheel Mobile Robot  

E-Print Network [OSTI]

with a four-motor inverse mouse- ball drive, yaw drive, leg drive, control system, and results including present the results and conclusions. II. SYSTEM DESCRIPTION A. Four-Motor Inverse Mouse-Ball Drive Spherical Wheel Mobile Robot Umashankar Nagarajan, Anish Mampetta, George A. Kantor and Ralph L. Hollis

93

The 14" IEEE 2003 InternationalSymposiumon Personai,lndoorand MobileRadio CommunicationProceedings Improved Distributed Regional Location  

E-Print Network [OSTI]

management scheme in our paper. The analytical results sbow that the dynamic scheme cdii redace the Mobile IP

Latchman, Haniph A.

94

Microsoft Word - Control_and_Fan_Improvements_in_CRAHs.doc  

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

07E 07E Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers Henry Coles and Steve Greenberg, Lawrence Berkeley National Laboratory Corinne Vita, Vigilent Environmental Energy Technologies Division November 2012 DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe

95

Radiant energy receiver having improved coolant flow control means  

DOE Patents [OSTI]

An improved coolant flow control for use in radiant energy receivers of the type having parallel flow paths is disclosed. A coolant performs as a temperature dependent valve means, increasing flow in the warmer flow paths of the receiver, and impeding flow in the cooler paths of the receiver. The coolant has a negative temperature coefficient of viscosity which is high enough such that only an insignificant flow through the receiver is experienced at the minimum operating temperature of the receiver, and such that a maximum flow is experienced at the maximum operating temperature of the receiver. The valving is accomplished by changes in viscosity of the coolant in response to the coolant being heated and cooled. No remotely operated valves, comparators or the like are needed.

Hinterberger, H.

1980-10-29T23:59:59.000Z

96

Optimal Offloading Control for a Mobile Device Based on a Realistic Battery Model and  

E-Print Network [OSTI]

applications are offloaded from the local device to the cloud for higher energy efficiency. The portion of the mobile device can choose from multiple modulation schemes and bit rates. The power consumptions/O ports, are also accounted for through capturing their correlation with the mobile processor and RF

Pedram, Massoud

97

A hybrid approach with fuzzy logic in a multi-agent system for controlling autonomous mobile robots in known environments  

Science Journals Connector (OSTI)

This paper describes the development of a multi-agent system (MAS), which is supported with fuzzy logic (to control the robot's movements in a reactive path) and vision, which helps the control of an autonomous mobile robot to exit a maze. The research consists of two stages. In the first stage the problem is to be able to make the robot exit a maze, the mobile robot is positioned at the entrance (point A) and should reach an exit (B), it should be noted that we are working with a NXT Lego MINDSTORMS robot. In its second phase the problem is to make the robot search for a recognised object, for this, a camera is used to capture images, which will be processed with vision techniques, for their identification, and after that, the MAS takes the decision to evade or take the object as considered appropriate.

Cinthya Solano-Aragon; Arnulfo Alanis; Oscar Castillo

2010-01-01T23:59:59.000Z

98

Tandem mobile robot system  

SciTech Connect (OSTI)

A robotic vehicle system for terrain navigation mobility provides a way to climb stairs, cross crevices, and navigate across difficult terrain by coupling two or more mobile robots with a coupling device and controlling the robots cooperatively in tandem.

Buttz, James H. (Albuquerque, NM); Shirey, David L. (Albuquerque, NM); Hayward, David R. (Albuquerque, NM)

2003-01-01T23:59:59.000Z

99

Some improvements of fuzzy logic controllers with applications.  

E-Print Network [OSTI]

??As one of the well-known intelligent control methods, fuzzy logic control has prominent advantage to be model-free in its design and applications. Although relatively mature… (more)

Zhang, Shanshan (???)

2007-01-01T23:59:59.000Z

100

A Bifunctional Copolymer Additive to Utilize Photoenergy Transfer and To Improve Hole Mobility for Organic Ternary Bulk-Heterojunction Solar Cell  

Science Journals Connector (OSTI)

A Bifunctional Copolymer Additive to Utilize Photoenergy Transfer and To Improve Hole Mobility for Organic Ternary Bulk-Heterojunction Solar Cell ... Over the past decade, organic photovoltaics (OPVs) have attracted significant attention for the production of solar energy owing to their potential advantages, such as low cost, flexibility, lightweight, large area, and simple processability. ... within the active layer blend and produce solar cells with high series resistances and low overall PCEs. ...

Cheng-Yu Chi; Ming-Chung Chen; Der-Jang Liaw; Han-Yu Wu; Ying-Chi Huang; Yian Tai

2014-07-17T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Improved Design of Nuclear Reactor Control System | U.S. DOE...  

Office of Science (SC) Website

instrumentation: Improved Design of Nuclear Reactor Control System Developed at: Oak Ridge National Laboratory, Holifield Radioactive Ion Beam Facility (HRIBF) Developed...

102

Improvement of SOFC Electrodes through Catalyst Infiltration & Control of Cr Volatilization from FeCr Components  

SciTech Connect (OSTI)

This presentation discusses the improvement of SOFC electrodes through catalyst infiltration and control of Cr volatilization from FeCr components.

Visco, S.J.; Jacobson, C.; Kurokawa, H.; Sholklapper, T.; Lu, C.; De Jonghe, L.

2005-01-28T23:59:59.000Z

103

Inexpensive CO2 Thickening Agents for Improved Mobility Control of CO2 Floods  

SciTech Connect (OSTI)

The objective of this research was the design, synthesis and evaluation of inexpensive, non-fluorous carbon dioxide thickening agents. We followed the same strategy employed in the design of fluorinated CO{sub 2} polymeric thickeners. First, a highly CO{sub 2}-philic, hydrocarbon-based monomer was to be identified. Polymers or oligomers of this monomer were then synthesized. The second step was to design a CO{sub 2}-thickener based on these CO{sub 2}-philic polymers. Two types of thickeners were considered. The first was a copolymer in which the CO{sub 2}-philic monomer was combined with a small proportion of CO{sub 2}-phobic associating groups that could cause viscosity-enhancing intermolecular interactions to occur. The second was a small hydrogen-bonding compound with urea groups in the core to promote intermolecular interactions that would cause the molecules to 'stack' in solution while the arms were composed of the CO{sub 2}-philic oligomers. Although we were not able to develop a viable thickener that exhibited high enough CO{sub 2} solubility at EOR MMP conditions to induce a viscosity increase, we made significant progress in our understanding of CO{sub 2}-soluble compounds that can be used in subsequent studies to design CO{sub 2}-soluble thickeners or CO{sub 2}-soluble surfactant-based foaming agents. These findings are detailed in this final report. In summary, we assessed many polymers and verified that the most CO{sub 2}-soluble oxygenated hydrocarbon polymer is poly(vinyl acetate), PVAc. This is primarily due to the presence of both ether and carbonyl oxygens associated with acetate-rich compounds. In addition to polymers, we also made small acetate-rich molecules that were also capable of associating in solution via the inclusion of hydrogen-bonding groups in hopes of forming viscosity-enhancing macromolecules. Despite the presence of multiple acetate groups in these compounds, which can impart incredible CO{sub 2}-solubility to many compounds, our attempts to make acetate-rich high molecular weight polymers and small hydrogen-bonding compounds did not yield a highly CO{sub 2}-soluble polymer or hydrogen-bonding associative thickener. The conclusions of our molecular modeling calculations confirmed that although acetates are indeed 'CO{sub 2}-philic', nitrogen-containing amines also interact favorably with CO{sub 2} and should also be examined. Therefore we obtained and synthesized many N-rich (e.g. amine-containing) polymers. Unfortunately, we found that the intermolecular polymer-polymer interactions between the amines were so strong that the polymers were essentially insoluble in CO{sub 2}. For the convenience of the reader, a table of all of the polymers evaluated during this research is provided.

Robert Enick; Eric Beckman; Andrew Hamilton

2005-08-31T23:59:59.000Z

104

Improving City Mobility through Gridlock Control: an Approach and Some Ideas  

E-Print Network [OSTI]

2. Smart parking 3. Green logistics 4. Self-organizing busof research topic 4.1. A.3 Green logistics Problem: Freightto better choose a green-logistics structure. Rationale:

Daganzo, Carlos F.

2005-01-01T23:59:59.000Z

105

Control Center and Data Management Improvements Modernize Bulk...  

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

Operations Corporation's (GSOC) Smart Grid Investment Grant (SGIG) project modernized bulk power management and control center operations for 38 electric membership...

106

Improving Pacific Intertie Stability Using Slatt Thyristor Controlled Series Compensation  

E-Print Network [OSTI]

design issues for the existing thyristor controlled series compensation (TCSC) device at Slatt substation on the Slatt­Buckley 500-kV transmission line owned by BPA. The controls were developed at Washington State University (WSU) in a project funded by Bonneville Power Administration (BPA). The project has been carried

Venkatasubramanian, Mani V.

107

Optimizing HVAC Control to Improve Building Comfort and Energy Performance  

E-Print Network [OSTI]

This paper demonstrates the benefits of optimal control in well-designed and operated buildings using a case study. The case study building was built in 2001. The HVAC and control systems have been installed with state-of-the-art equipment which...

Song, L.; Joo, I.; Dong, D.; Liu, M.; Wang, J.; Hansen, K.; Quiroz, L.; Swiatek, A.

2003-01-01T23:59:59.000Z

108

IMPROVEMENTS TO THE CRYOGENIC CONTROL SYSTEM ON DIII-D  

SciTech Connect (OSTI)

OAK-B135 The cryogenic facility that is part of the DIII-D tokamak system supplies liquid nitrogen and liquid helium to the superconducting magnets used for electron cyclotron heating, the D{sub 2} pellet injection system, cryopumps in the DIII-D vessel, and cryopanels in the neutral beam injection system. The liquid helium is liquefied on site using a Sulzer liquefier that has a 150 l/h liquefaction rate. Control of the cryogenic facility at DIII-D was initially accomplished through the use of three different programmable logic controllers (PLCs). Recently, two of those three PLCs, a Sattcon PLC controlling the Sulzer liquefier and a Westinghouse PLC, were removed and all their control logic was merged into the remaining PLC, a Siemens T1555. This replacement was originally undertaken because the removed PLCs were obsolete and unsupported. However, there have been additional benefits from the replacement. The replacement of the RS-232 serial links between the graphical user interface and the PLCs with a high speed Ethernet link allows for real-time display and historical trending of nearly all the cryosystem's data. this has greatly increased the ability to troubleshoot problems with the system, and has permitted optimization of the cryogenic system's performance because of the increased system integration. To move the control logic of the Sattcon control loops into the T1555, an extensive modification of the basic PID control was required. These modifications allow for better control of the control loops and are now being incorporated in other control loops in the system.

HOLTROP,K.L; ANDERSON,P.M; MAUZEY,P.S

2003-10-01T23:59:59.000Z

109

PH Sensitive Polymers for Improving Reservoir Sweep and Conformance Control in Chemical Flooring  

SciTech Connect (OSTI)

There is an increasing opportunity to recover bypassed oil from depleted, mature oilfields in the US. The recovery factor in many reservoirs is low due to inefficient displacement of the oil by injected fluids (typically water). The use of chemical flooding methods to increase recovery efficiencies is severely constrained by the inability of the injected chemicals to contact the bypassed oil. Low sweep efficiencies are the primary cause of low oil recoveries observed in the field in chemical flooding operations even when lab studies indicate high oil recovery efficiency. Any technology that increases the ability of chemical flooding agents to better contact the remaining oil and reduce the amount of water produced in conjunction with the produced oil will have a significant impact on the cost of producing oil domestically in the US. This translates directly into additional economically recoverable reserves, which extends the economic lives of marginal and mature wells. The objective of this research project was to develop a low-cost, pH-triggered polymer for use in IOR processes to improve reservoir sweep efficiency and reservoir conformance in chemical flooding. Rheological measurements made on the polymer solution, clearly show that it has a low viscosity at low pH and exhibits a sudden increase in viscosity (by 2 orders of magnitude or more) at a pH of 3.5 to 4. This implies that the polymer would preferentially flow into zones containing water since the effective permeability to water is highest in these zones. As the pH of the zone increases due to the buffering capacity of the reservoir rock, the polymer solution undergoes a liquid to gel transition causing a sharp increase in the viscosity of the polymer solution in these zones. This allows operationally robust, in-depth conformance treatment of such water bearing zones and better mobility control. The rheological properties of HPAM solutions were measured. These include: steady-shear viscosity and viscoelastic behavior as functions of pH; shear rate; polymer concentration; salinity, including divalent ion effects; polymer molecular weight; and degree of hydrolysis. A comprehensive rheological model was developed for HPAM solution rheology in terms of: shear rate; pH; polymer concentration; and salinity, so that the spatial and temporal changes in viscosity during the polymer flow in the reservoir can be accurately modeled. A series of acid coreflood experiments were conducted to understand the geochemical reactions relevant for both the near-wellbore injection profile control and for conformance control applications. These experiments showed that the use hydrochloric acid as a pre-flush is not viable because of the high reaction rate with the rock. The use of citric acid as a pre-flush was found to be quite effective. This weak acid has a slow rate of reaction with the rock and can buffer the pH to below 3.5 for extended periods of time. With the citric acid pre-flush the polymer could be efficiently propagated through the core in a low pH environment i.e. at a low viscosity. The transport of various HPAM solutions was studied in sandstones, in terms of permeability reduction, mobility reduction, adsorption and inaccessible pore volume with different process variables: injection pH, polymer concentration, polymer molecular weight, salinity, degree of hydrolysis, and flow rate. Measurements of polymer effluent profiles and tracer tests show that the polymer retention increases at the lower pH. A new simulation capability to model the deep-penetrating mobility control or conformance control using pH-sensitive polymer was developed. The core flood acid injection experiments were history matched to estimate geochemical reaction rates. Preliminary scale-up simulations employing linear and radial geometry floods in 2-layer reservoir models were conducted. It is clearly shown that the injection rate of pH-sensitive polymer solutions can be significantly increased by injecting it at a pH below 3.5 (at a fixed bottom-hole pressure). This improvement in injectivity by a fa

Mukul Sharma; Steven Bryant; Chun Huh

2008-03-31T23:59:59.000Z

110

MOBILE SENSING 1 MOBILE SENSING  

E-Print Network [OSTI]

MOBILE SENSING 1 MOBILE SENSING ! ! Parham Aarabi #12;MOBILE SENSING 2 20 years of sensing research #12;MOBILE SENSING 3 Low Likelihood High Likelihood #12;MOBILE SENSING 4 Image Courtesy of Apple Inc. #12;MOBILE SENSING 5 What can we do with all the sensors on our mobile devices? #12;MOBILE SENSING 6

Prodiæ, Aleksandar

111

Understanding mechanisms of flow instability leads to improved control of  

E-Print Network [OSTI]

stability · Turbulence conditioning and boundary layer trimming in nozzle dramatically improves jet quality UC Berkeley data Re = 100,000 L/D = 44 Re = 75,000 L/D = 44 w/ conditioning w/o conditioning #12 Preserving Heat in the Air Temperature Rise in the Air Earth I.R.:Infra Red I.R. Absorption Sun Air I

Abdou, Mohamed

112

Improve Boiler System Operations- Application of Statistical Process Control  

E-Print Network [OSTI]

FOR IMPROVEMENT SURVEY CUSTOMERS2. 3. SELECT PROJECT AGREE UPON REOUREMENTS4. WITH CUSTOMERS 5. DIAGRAM PROCESS FLOW 6. ANAlYSIS OF CAUSE & EFFECT 7. DEFINE PROCESS MEASURES 8. COLLECT AND ANALYZE DATA ON MEASURES 9. NPLEMENT CORRECTIVE ACTION 10. MONTOR...

Scarr, D.; Shea, D.

113

Advanced regulatory control and coordinated plant-wide control strategies for IGCC targeted towards improving power ramp-rates  

SciTech Connect (OSTI)

As part of ongoing R&D activities at the National Energy Technology Laboratory's (NETL) Advanced Virtual Energy Simulation Training & Research (AVESTAR™) Center, this paper highlights strategies for enhancing low-level regulatory control and system-wide coordinated control strategies implemented in a high-fidelity dynamic simulator for an Integrated Gasification Combined Cycle (IGCC) power plant with carbon capture. The underlying IGCC plant dynamic model contains 20 major process areas, each of which is tightly integrated with the rest of the power plant, making individual functionally-independent processes prone to routine disturbances. Single-loop feedback control although adequate to meet the primary control objective for most processes, does not take into account in advance the effect of these disturbances, making the entire power plant undergo large offshoots and/or oscillations before the feedback action has an opportunity to impact control performance. In this paper, controller enhancements ranging from retuning feedback control loops, multiplicative feed-forward control and other control techniques such as split-range control, feedback trim and dynamic compensation, applicable on various subsections of the integrated IGCC plant, have been highlighted and improvements in control responses have been given. Compared to using classical feedback-based control structure, the enhanced IGCC regulatory control architecture reduces plant settling time and peak offshoots, achieves faster disturbance rejection, and promotes higher power ramp-rates. In addition, improvements in IGCC coordinated plant-wide control strategies for “Gasifier-Lead”, “GT-Lead” and “Plantwide” operation modes have been proposed and their responses compared. The paper is concluded with a brief discussion on the potential IGCC controller improvements resulting from using advanced process control, including model predictive control (MPC), as a supervisory control layer.

Mahapatra, P.; Zitney, S.

2012-01-01T23:59:59.000Z

114

Active Wake Redirection Control to Improve Energy Yield (Poster)  

SciTech Connect (OSTI)

Wake effects can dramatically reduce the efficiency of waked turbines relative to the unwaked turbines. Wakes can be deflected, or 'redirected,' by applying yaw misalignment to the turbines. Yaw misalignment causes part of the rotor thrust vector to be pointed in the cross-stream direction, deflecting the flow and the wake. Yaw misalignment reduces power production, but the global increase in wind plant power due to decreased wake effect creates a net increase in power production. It is also a fairly simple control idea to implement at existing or new wind plants. We performed high-fidelity computational fluid dynamics simulations of the wake flow of the proposed Fishermen's Atlantic City Windfarm (FACW) that predict that under certain waking conditions, wake redirection can increase plant efficiency by 10%. This means that by applying wake redirection control, for a given watersheet area, a wind plant can either produce more power, or the same amount of power can be produced with a smaller watersheet area. With the power increase may come increased loads, though, due to the yaw misalignment. If misalignment is applied properly, or if layered with individual blade pitch control, though, the load increase can be mitigated. In this talk we will discuss the concept of wake redirection through yaw misalignment and present our CFD results of the FACW project. We will also discuss the implications of wake redirection control on annual energy production, and finally we will discuss plans to implement wake redirection control at FACW when it is operational.

Churchfield, M. J.; Fleming, P.; DeGeorge, E.; Bulder, B; White, S. M.

2014-10-01T23:59:59.000Z

115

Quantum effects improve the energy efficiency of feedback control  

E-Print Network [OSTI]

The laws of thermodynamics apply equally well to quantum systems as to classical systems, and because of this quantum effects do not change the fundamental thermodynamic efficiency of isothermal refrigerators or engines. We show that, despite this fact, quantum mechanics permits measurement-based feedback control protocols that are more thermodynamically efficient than their classical counterparts. As part of our analysis we perform a detailed accounting of the thermodynamics of unitary feedback control, and elucidate the sources of inefficiency in measurement-based and coherent feedback.

Jordan M. Horowitz; Kurt Jacobs

2014-04-15T23:59:59.000Z

116

Fuzzy logic in process control: A new fuzzy logic controller and an improved fuzzy-internal model controller.  

E-Print Network [OSTI]

??Two fuzzy controllers are presented. A fuzzy controller with intermediate variable designed for cascade control purposes is presented as the FCIV controller. An intermediate variable… (more)

García Z., Yohn E

2006-01-01T23:59:59.000Z

117

IMPROVING THE ROBUSTNESS OF FUZZY LOGIC ATM ABR RATE CONTROL FOR LARGE ROUND TRIP TIMES  

E-Print Network [OSTI]

IMPROVING THE ROBUSTNESS OF FUZZY LOGIC ATM ABR RATE CONTROL FOR LARGE ROUND TRIP TIMES Lachlan L in the presence of a large round trip time (RTT). A simple fuzzy logic controller was recently shown to perform. In recent years, fuzzy logic [4,5] has shown promise in the control of complex systems, and several fuzzy

Andrew, Lachlan

118

A Distributed Control Group of Mobile Robots in a Limited Area with a Vision System  

Science Journals Connector (OSTI)

Digital remote manual control systems are no less complicated than automatic control. Engineers have to overcome number of unique problems. Mechanical parts have to respond to digital signals transferred through ...

Artur Babiarz; Robert Bieda; Krzysztof Jaskot

2013-01-01T23:59:59.000Z

119

Priority-Based Internet Access Control for Fairness Improvement and Abuse Reduction  

Science Journals Connector (OSTI)

In this paper, we exploit a prioritized-service architecture and apply a priority based traffic control scheme to reduce abusive Internet access, improve fairness among users and study users. behavior under a ...

Tsung-Ching Lin; Yeali S. Sun…

2003-01-01T23:59:59.000Z

120

Resource allocation and project selection: Control of r & d under dynamic process of data improvement  

Science Journals Connector (OSTI)

This paper deals with the problem of optimal control of R&D. The fundamental aspects of this problem are ... in this technology as well as improve economic data; allocation of investments among rival projects und...

V. Z. Belenky; A. M. Belostotsky

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Improved Quality Control Processing of Peptide-centric LC-MS...  

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

statistically extreme LC-MS runs. Citation: Matzke MM, KM Waters, TO Metz, JM Jacobs, A Sims, R Baric, JG Pounds, and BJM Webb-Robertson.2011."Improved Quality Control Processing...

122

Improving waveform quality in direct power control of DFIG using fuzzy controller  

Science Journals Connector (OSTI)

This paper proposes a new direct power control (DPC) strategy of double-fed induction generator using fuzzy logic controller. The active and reactive power equations are expanded, and effects of voltage vecto...

H. Z. Boroujeni; M. F. Othman; A. H. Shirdel…

2014-11-01T23:59:59.000Z

123

Adaptive Software Testing in the Context of an Improved Controlled Markov Chain Model  

E-Print Network [OSTI]

Adaptive Software Testing in the Context of an Improved Controlled Markov Chain Model Hai Hu, Chang@buaa.edu.cn Abstract Adaptive software testing is the counterpart of adaptive control in software testing. It means that software testing strategy should be adjusted on- line by using the testing data collected during software

Kundu, Sukhamay

124

Improved Design of Nuclear Reactor Control System | U.S. DOE Office of  

Office of Science (SC) Website

Improved Design of Nuclear Reactor Improved Design of Nuclear Reactor Control System Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Improved Design of Nuclear Reactor Control System Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Improved Design of Nuclear Reactor Control System Developed at: Oak Ridge National Laboratory, Holifield Radioactive Ion Beam Facility (HRIBF)

125

Improving CO2 Efficiency for Recovering Oil in Heterogeneous Reservoirs  

SciTech Connect (OSTI)

The work strived to improve industry understanding of CO2 flooding mechanisms with the ultimate goal of economically recovering more of the U.S. oil reserves. The principle interests are in the related fields of mobility control and injectivity.

Grigg, Reid B.; Svec, Robert K.

2003-03-10T23:59:59.000Z

126

Control of household refrigerators. Part 2: Alternate control approaches for improving temperature performance and reducing energy use  

SciTech Connect (OSTI)

In Part 1 it was shown that conventional control of household refrigerators is achieved by regulating the distribution of air in the freezer compartment to all other parts of the plant. In Part 2 three alternative approaches to the conventional control of a top-mount refrigerator are presented: variable temperature bandwidths, uncoupled compressor and evaporator fan, and the combination of these two. These allowed the plant to achieve near-ideal control with respect to improved temperature performance in each compartment. Automatic airflow dampers were used with the dual controllers to independently regulate refrigerator compartment temperature. Plant performance was simulated using a model that computes the refrigerant and airflow systems behavior. Together, these alternate configurations and approaches define new control algorithms that reveal the plant's optimal control model for improving performance and energy usage relative to conventional controllers. Results based on model simulations are dependent upon the model's accuracy and validity. However, the model validation studies cited here, though limited in scope, do show agreement between simulation and experimental data for the ambient temperatures and thermal load conditions considered. This suggests that these model results are reasonable, and representative of actual plant behavior under these conditions and configurations for a top-mount style refrigerator plant.

Graviss, K.J.; Collins, R.L.

1999-07-01T23:59:59.000Z

127

On improving wave energy conversion, part II: Development of latching control technologies  

Science Journals Connector (OSTI)

Abstract In the first part of the investigation, a new latching control technology is proposed, and it has been shown that the new latching control technique is capable of greatly improving wave energy conversion in regular waves. In this part of the research, a new analysis technique is developed for studying the latching control technology. A ‘time-out’ method is developed and employed for ‘re-packing’ the dynamic system, hence the analysis of the latching control technology can be changed from a complete nonlinear dynamics into a simple linear dynamic system, and it is further proven that the ‘re-packed’ dynamic system can be transformed back to frequency domain for further analysis. In the research, we could prove how the phase optimal condition can be attained. Further on, the new latching control technology will be used in irregular waves. Unlike many other latching control technologies, the new latching control does not need the detailed future information. In the development of the technology, we will show how we can obtain the latching duration for irregular waves for improving wave power extraction. As a result, we could remove one barrier in implementing latching control strategy while the wave energy conversion can still be much improved.

Wanan Sheng; Raymond Alcorn; Anthony Lewis

2014-01-01T23:59:59.000Z

128

Continuous Control Primitive Trajectory Generation and Optimal Motion Splines for All-Wheel Steering Mobile  

E-Print Network [OSTI]

on the Rocky 8 rover platform, where parameterized linear velocity, curvature, and path heading controls of the wheels are steerable (e.g. Rocky 8, shown), the body can rotate about any point in the local tangent has dealt with finding obstacle-free paths subject to nonholnomic constraints assuming flat terrain

Kelly, Alonzo

129

Improved Power Control in the Palm of Your Hand | Department of Energy  

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

Improved Power Control in the Palm of Your Hand Improved Power Control in the Palm of Your Hand Improved Power Control in the Palm of Your Hand November 7, 2011 - 2:11pm Addthis Silicon carbide thyristors, developed through a partnership between the Energy Department's Sandia National Lab and GeneSiC Semiconductor, are key to utility-scale power conversion. Learn more about this technology, which won a 2011 R&D 100 award. Dr. Imre Gyuk Dr. Imre Gyuk Energy Storage Program Manager, Office of Electricity Delivery and Energy Reliability How does it work? The GeneSic thyristor -- an electronic switch -- is based on on silicon carbide (SiC), which can operate at much higher temperatures than silicon. This allows the device to handle 10 times the voltage, and switch 100 times faster, than its silicon-based competition.

130

Mobile Computing/Mobile Computing/Mobile Computing/Mobile Computing/ Mobile NetworksMobile NetworksMobile NetworksMobile Networks  

E-Print Network [OSTI]

Mobile Computing/Mobile Computing/Mobile Computing/Mobile Computing/ Mobile NetworksMobile NetworksMobile NetworksMobile Networks Mobile IP Prof. Chansu Yu 2 Contents IP for Wired Network Mobile IP Overview Basic Mobile IP Agent Discovery Registration Tunneling Route Optimization Current Topics #12;3 Simplified

Yu, Chansu

131

MANTRA: mobile anticoagulant therapy management  

Science Journals Connector (OSTI)

The MANTRA (Mobile for ANticoagulant TheRApy) project is aimed at introducing mobile devices and innovative interaction design in anticoagulant therapy practice to improve the quality of life of patients and to support doctor-patient communication. This ... Keywords: mhealth, mobile communication, oral anticoagulant therapy, self-testing devices, telemedicine

Barbara Rita Barricelli; Yanet Devis; Jose Abdelnour-Nocera; Jennie Wilson; John Moore

2013-05-01T23:59:59.000Z

132

The mPED randomized controlled clinical trial: Applying mobile persuasive technologies to increase physical activity in sedentary women protocol  

E-Print Network [OSTI]

current behavioral sciences and mHealth. Trial Registration:Metabolic equivalent of task; mHealth: Mobile health; mPED:

2011-01-01T23:59:59.000Z

133

Recent improvements to the DIII-D neutral beam instrumentation and control system  

SciTech Connect (OSTI)

The DIII-D neutral beam (NB) instrumentation and control (I and C) system provides for operational control and synchronization of the eight DIII-D neutral beam injection systems, as well as for pertinent data acquisition and safety interlocking. Recently, improvements were made to the I and C system. With the replacement of the NB control computers, new signal interfacing was required to accommodate the elimination of physical operator panels, in favor of graphical user interface control pages on computer terminal screens. The program in the mode control (MC) programmable logic controller (PLC), which serves as a logic-processing interface between the NB control computers and system hardware, was modified to improve the availability of NB heating of DIII-D plasmas in the event that one or more individual beam systems suddenly become unavailable while preparing for a tokamak experimental shot sequences. An upgraded computer platform was adopted for the NB control system operator interface and new graphical user interface pages were developed to more efficiently display system status data. A failure mode of the armor tile infrared thermometers (pyrometers), which serve to terminate beam pulsing if beam shine-through overheats wall thermal shielding inside the DIII-D tokamak, was characterized such that impending failures can be detected and repairs effected to mitigate beam system down-time. The hardware that controls gas flow to the beamline neutralizer cells was upgraded to reduce susceptibility to electromagnetic interference (EMI), and interlocking was provided to terminate beam pulsing in the event of insufficient neutralizer gas flow. Motivation, implementation, and results of these improvements are presented.

Kellman, D.H.; Hong, R.

1997-11-01T23:59:59.000Z

134

Thermal Control Techniques for Improved DT Layering of Indirect Drive IFE Targets  

E-Print Network [OSTI]

Thermal Control Techniques for Improved DT Layering of Indirect Drive IFE Targets J. E. Pulsifer, M while they are being staged for feeding to the injection system. Successful layering requires the filled capsule depends upon the thermal properties of the tube material, the capsule material

Tillack, Mark

135

Distributed Battery Control to Improve Peak Power Shaving Efficiency in Data Centers  

E-Print Network [OSTI]

Rack PDU BackupMain Bus-type power network Utility Diesel Generator ATS PDU Server Rack Server RackDistributed Battery Control to Improve Peak Power Shaving Efficiency in Data Centers Baris Aksanli, Eddie Pettis and Tajana S. Rosing UCSD, Google Stored energy in batteries can be used to cap peak power

Simunic, Tajana

136

DETERMINATION, CONTROL AND IMPROVEMENT OF AN SKA RADIO ENVIRONMENT IN SOUTH AFRICA  

E-Print Network [OSTI]

DETERMINATION, CONTROL AND IMPROVEMENT OF AN SKA RADIO ENVIRONMENT IN SOUTH AFRICA By Neël Smuts1 ABSTRACT South Africa, in its bid to host the SKA2 , has adopted a dual approach to determine, assess Recommendations and Resolutions and South African legal provisions. An overview of this process is provided. Even

Ellingson, Steven W.

137

HVDC Control Strategies to Improve Transient Stability in Interconnected Power Systems  

E-Print Network [OSTI]

HVDC Control Strategies to Improve Transient Stability in Interconnected Power Systems J. Hazra Dpt of Li`ege, Belgium, dernst@ulg.ac.be Abstract--This paper presents three HVDC modulation strate- gies flow settings through the HVDC-links. The proposed techniques are tested on the IEEE 24-Bus reliability

Boyer, Edmond

138

Using System Pressure Control to Improve the Compressed Air System at Goulds Pumps  

E-Print Network [OSTI]

psi. This close tolerance control is accomplished by the PLC-based SPC controller, which governs the main valve position with 16-bit resolution. The main control valve is a precision pneumatic valve with an electronic-to-pneumatic transducer... at other times were even greater, and Goulds plant engineering staff wanted to make improvements that would provide a more stable pressure. The period depicted around 6 a.m., is the beginning of the first production shift. Most or all of the key...

Caropolo, B.; Sember, P.; Glace, P.

139

Tackling the Improved Control of Mixed-Mode Buildings: A Research Update  

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

Tackling the Improved Control of Mixed-Mode Buildings: A Research Update Tackling the Improved Control of Mixed-Mode Buildings: A Research Update Speaker(s): Peter May-Ostendorp Date: March 29, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: William Fisk (This presentation by Peter May-Ostendorp will begin with an introduction to building energy research at UC Boulder, by Prof. Gregor Henze.) Mixed-mode (MM) cooling is a promising building design strategy for low-energy cooling that incorporates natural ventilation alongside other forms of space conditioning. A properly designed system will intelligently switch between modes of cooling to maximize energy savings, while preserving occupant comfort. The near-optimal operation of MM buildings is explored through a model-predictive control (MPC) study using a purpose-built optimization environment coupled to EnergyPlus. Preliminary

140

Mobile Testing  

Science Journals Connector (OSTI)

Mobile apps are everywhere. Some apps entertain and others enable business transactions. Apps increasingly interact with complex IT landscapes. For example, a banking app on a mobile device acts as a front end that invokes services on a back-end server ... Keywords: mobile apps, mobile devices, software quality management, software testing, test automation, test strategy

Klaus Haller

2013-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile Resources  

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

Mobile Resources Mobile Resources Mobile Resources Have a mobile device? Find tips and information here. Questions? 505-667-5809 Email For information call the Service Desk at (505) 667-5809 or email mobilelibrary@lanl.gov The following resources are optimized for mobile devices or have mobile apps available for download. Resource Available App Mobile Website Available off Yellow Network with Pairing or Login Additional Information AACR Journals Apple Yes, the Journals are optimized for mobile viewing. Not the whole AACR site. Instructional pdf on pairing with voucher ACS Apple Android No American Institute of Physics Apple No American Mathematical Society No Yes Instructions for pairing mobile devices, tablets, laptops, etc. American Physical Society No Annual Reviews No Yes Instructions for pairing with mobile device available on website.

142

Feedforward artificial neural network to improve model predictive control in biological processes  

Science Journals Connector (OSTI)

Artificial neural networks (ANNs) offer the versatility of being able to model the dynamics of a biosystem without requiring a phenomenological model. In addition, model predictive control (MPC) is a member of advanced discrete-time process control algorithms. The recent developments in the biotechnology due to MPC utilising the capability of ANN make the practical application of non-linear process control strategies a reality. This paper reviews the recent enhancement and applications of MPC in various biochemical processes using feedforward artificial neural networks which is also known as neural predictive control. The capability of neural predictive control to handle the common problems associated with biochemical processes, namely optimisation of objective function, optimisation of dynamic behaviour of the system, control of ill-defined non-linear systems, improving the computational efficiency of the strategy, disturbance rejection ability and evaluating the control effectiveness are discussed. The review clearly indicates that enormous work has been carried out involving dynamic behaviour of the bioreactor system which is analysed and optimised revealing that feedforward neural network has evolved as a good bioreactor neuro-controller.

Senthil Kumar Arumugasamy; Zainal Ahmad

2011-01-01T23:59:59.000Z

143

Improved  

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

Improved Improved cache performance in Monte Carlo transport calculations using energy banding A. Siegel a , K. Smith b , K. Felker c,∗ , P . Romano b , B. Forget b , P . Beckman c a Argonne National Laboratory, Theory and Computing Sciences and Nuclear Engineering Division b Massachusetts Institute of Technology, Department of Nuclear Science and Engineering c Argonne National Laboratory, Theory and Computing Sciences Abstract We present an energy banding algorithm for Monte Carlo (MC) neutral parti- cle transport simulations which depend on large cross section lookup tables. In MC codes, read-only cross section data tables are accessed frequently, ex- hibit poor locality, and are typically much too large to fit in fast memory. Thus, performance is often limited by long latencies to RAM, or by off-node communication latencies when the data footprint is very large and must be decomposed on

144

A study on the effect of a dynamic contact force control for improving electrospark coating properties  

Science Journals Connector (OSTI)

The electrospark deposition (ESD) technique was used to apply aluminum-diffusion coatings over a thin stainless steel sheet under low energy discharge conditions to minimize substrate damage. In order to produce uniform coating properties over relatively large areas, automatic deposition treatments were conducted in a multi-scan mode under a dynamic control of the contact force parameter, which was realized by means of a spring-loaded electrode contact. A continuous and uniform Al coating layer was obtained indicating that a dynamic contact force system may be effective in suppressing several coating defects, which are notoriously produced with conventional ESD processes. The benefits of the dynamic force control are mostly related to the concept of a mobile electrode contact, which creates a momentary gap expansion during the spark discharge. The expanded gap is believed to reduce the effect of surface roughness on spark reproducibility and at the same time to stabilize the streamer regime of the spark breakdown, which are both essential for more uniform ESD depositions and lower cathode erosion.

S. Frangini; A. Masci

2010-01-01T23:59:59.000Z

145

GUIDELINES FOR IMPLEMENTATION OF AN ADVANCED OUTAGE CONTROL CENTER TO IMPROVE OUTAGE COORDINATION, PROBLEM RESOLUTION, AND OUTAGE RISK MANAGEMENT  

SciTech Connect (OSTI)

This research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which is a research and development (R&D) program sponsored by Department of Energy (DOE) and performed in close collaboration with industry R&D programs that provide the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRS program serves to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. Managing NPP outages is a complex and difficult task due to the large number of maintenance and repair activities that are accomplished in a short period of time. During an outage, the outage control center (OCC) is the temporary command center for outage managers and provides several critical functions for the successful execution of the outage schedule. Essentially, the OCC functions to facilitate information inflow, assist outage management in processing information, and to facilitate the dissemination of information to stakeholders. Currently, outage management activities primarily rely on telephone communication, face to face reports of status, and periodic briefings in the OCC. It is a difficult task to maintain current the information related to outage progress and discovered conditions. Several advanced communication and collaboration technologies have shown promise for facilitating the information flow into, across, and out of the OCC. The use of these technologies will allow information to be shared electronically, providing greater amounts of real-time information to the decision makers and allowing OCC coordinators to meet with supporting staff remotely. Passively monitoring status electronically through advances in the areas of mobile worker technologies, computer-based procedures, and automated work packages will reduce the current reliance on manually reporting progress. The use of these technologies will also improve the knowledge capture and management capabilities of the organization. The purpose of this research is to improve management of NPP outages through the development of an advanced outage control center (AOCC) that is specifically designed to maximize the usefulness of communication and collaboration technologies for outage coordination and problem resolution activities. This technical report for industry implementation outlines methods and considerations for the establishment of an AOCC. This report provides a process for implementation of a change management plan, evaluation of current outage processes, the selection of technology, and guidance for the implementation of the selected technology. Methods are presented for both adoption of technologies within an existing OCC and for a complete OCC replacement, including human factors considerations for OCC design and setup.

Shawn St. Germain; Ronald Farris; April M. Whaley; Heather Medema; David Gertman

2014-09-01T23:59:59.000Z

146

Study Shows Active Power Controls from Wind May Increase Revenues and Improve System Reliability  

Broader source: Energy.gov [DOE]

The DOE Wind Program and the National Renewable Energy Laboratory recently published a study conducted in collaboration with the Electric Power Research Institute and the University of Colorado. Researchers examined how the contribution of wind power providing active power controls could benefit the total power system economics, increase revenue streams, and improve the reliability and security of the nation’s power system, all while having negligible impacts on the turbine and its components.

147

Improved understanding and control of high-speed jet interaction flows  

E-Print Network [OSTI]

fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Rodney D. W. Bowersox Committee Members, Sharath S. Girimaji Paul Cizmas Simon North Head of Department, Helen Reed December 2005 Major Subject: Aerospace... Engineering iii ABSTRACT Improved Understanding and Control of High-Speed Jet Interaction Flows. (December 2005) Ravichandra Srinivasan, B. E., Bangalore University; M.S., The University of Alabama Chair of Advisory Committee: Dr. Rodney D. W. Bowersox A...

Srinivasan, Ravichandra

2006-04-12T23:59:59.000Z

148

Improving the dynamic performance of a complex AC/DC system by HVDC control modifications  

SciTech Connect (OSTI)

The power system of Hydro-Quebec has a peak load of approximately 27 GW. The great distance between the production sites and the load centers introduces stability limitations, which is the reason why the Quebec grid cannot be economically synchronized (through ac transmission with limited capacity) with the U.S. northeastern network. Power exports are therefore dependent on the use of HVDC links of which Hydro-Quebec now possesses five, for a capacity of over 2600 MW. Such a capacity will again soon increase. At the moment, the Chateauguay scheme has the largest HVDC capacity. It transfers 1000 MW by means of two Back-to-Back converter blocks. Various automatic control systems are installed on the Chateauguay scheme owing to the fact that a single circuit of a 765 kV ac line transmits the output of both the HVDC converter stations as well as the output from Beauharnois hydro generating station. Such controls have performed satisfactorily since 1984. However, a remarkable improvement of the overall ac/dc system dynamic performance can be gained by making certain modifications in some of these HVDC system controls. This paper presents the salient features of such control modifications, currently under consideration, using the results of an investigation by digital and analogue simulations that demonstrate the achieved improvements.

Hammad, A.E. (ABB Power Systems, Baden (CH)); Gagnon, J. (Hydro Quebec, Montreal (CA)); McCallum, D. (IREQ, Montreal (CA))

1990-10-01T23:59:59.000Z

149

Microbiological, Geochemical and Hydrologic Processes Controlling Uranium Mobility: An Integrated Field-Scale Subsurface Research Challenge Site at Rifle, Colorado, Quality Assurance Project Plan  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) is cleaning up and/or monitoring large, dilute plumes contaminated by metals, such as uranium and chromium, whose mobility and solubility change with redox status. Field-scale experiments with acetate as the electron donor have stimulated metal-reducing bacteria to effectively remove uranium [U(VI)] from groundwater at the Uranium Mill Tailings Site in Rifle, Colorado. The Pacific Northwest National Laboratory and a multidisciplinary team of national laboratory and academic collaborators has embarked on a research proposed for the Rifle site, the object of which is to gain a comprehensive and mechanistic understanding of the microbial factors and associated geochemistry controlling uranium mobility so that DOE can confidently remediate uranium plumes as well as support stewardship of uranium-contaminated sites. This Quality Assurance Project Plan provides the quality assurance requirements and processes that will be followed by the Rifle Integrated Field-Scale Subsurface Research Challenge Project.

Fix, N. J.

2008-01-07T23:59:59.000Z

150

Improvement of a turbocharger by-pass valve and impact on performance, controllability, noise and durability  

Science Journals Connector (OSTI)

ABSTRACT Over the past years, the evolution of emission standards as well as the advent of Fuel economy targets has driven the need for higher controllability of boost pressure. This is a strong trend, which will continue to be true for both gasoline and diesel engine applications as we prepare for further evolutions of standards and introduction of fuel economy regulations. While engine boundary conditions have become harsher, fine, accurate and sustainable control of boost is challenging the way mechatronics components are engineered. This requires us to apply a System Engineering approach and improve our understanding of the behaviour of the entire control chain so that we can ultimately influence the design and drive performance at the System level. This paper describes key elements of the kinematic tools developed by Honeywell Turbocharger Technologies in order to optimize turbocharger control solutions. It includes details on CAE applications such as fluid dynamics, flexible multi-body dynamics and thermo-mechanical simulations and how they can be linked together to analyse a complete system. It highlights the importance of understanding the behaviour of the whole control chain from the actuator command to the turbocharger and engine response. The paper presents results from one main examples on a new waste-gate concept for Fixed geometry turbochargers primarily for gasoline applications. This examples show how kinematic tools can be applied to achieve controllability and durability targets while accelerating development cycle time.

L. Toussaint; M. Marques; N. Morand; P. Davies; C. Groves; F. Tomanec; M. Zatko; D. Vlachy; R. Mrazek

2014-01-01T23:59:59.000Z

151

Induction generator voltage improvement using a new control strategy for turbo-expander driving systems  

Science Journals Connector (OSTI)

Abstract Turbo-expanders are relatively new sources of dispersed generation which are used to drive the electrical generators. The conventional pressure regulating valves are replaced by these devices in the gas pressure reduction station. Connecting the dispersed generation to the distribution networks especially for squirrel cage induction generators, may result in some power quality problems. These problems can be obviated using special devices in electrical networks or modifying the control system of the prime mover system in mechanical parts. In this paper, it is focused on the Point of Common Coupling (PCC) voltage where a turbo-expander driven induction generator is connected. A new control strategy based on fuzzy controlled PID is considered for the mechanical part of the turbo-expander nozzle system. The results show a better control of turbo-expander output power in a linear form over the full range of operating points. The other purpose of the control system modification is to improve the power quality and stabilize the PCC voltage in different operating point conditions.

Mehdi Taleshian Jelodar; Hasan Rastegar; Mohammad Pichan

2015-01-01T23:59:59.000Z

152

Energy-Saving Control of Single-Rod Hydraulic Cylinders with Programmable Valves and Improved Working Mode Selection  

E-Print Network [OSTI]

Energy-Saving Control of Single-Rod Hydraulic Cylinders with Programmable Valves and Improved. ABSTRACT This paper studies the energy-saving adaptive robust precision motion control of a single and individual cylinder chamber pressure control for better energy saving. With a typical four-way directional

Yao, Bin

153

Guidance for Deployment of Mobile Technologies for Nuclear Power Plant  

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

Guidance for Deployment of Mobile Technologies for Nuclear Power Guidance for Deployment of Mobile Technologies for Nuclear Power Plant Field Workers Guidance for Deployment of Mobile Technologies for Nuclear Power Plant Field Workers This report is a guidance document prepared for the benefit of commercial nuclear power plants' (NPPs) supporting organizations and personnel who are considering or undertaking deployment of mobile technology for the purpose of improving human performance and plant status control (PSC) for field workers in an NPP setting. This document especially is directed at NPP business managers, Electric Power Research Institute, Institute of Nuclear Power Operations, and other non-Information Technology personnel. This information is not intended to replace basic project management practices or reiterate these processes, but is to support decision-making,

154

Field Test Results from Lidar Measured Yaw Control for Improved Yaw Alignment with the NREL Controls Advanced Research Turbine: Preprint  

SciTech Connect (OSTI)

This paper describes field tests of a light detection and ranging (lidar) device placed forward looking on the nacelle of a wind turbine and used as a wind direction measurement to directly control the yaw position of a wind turbine. Conventionally, a wind turbine controls its yaw direction using a nacelle-mounted wind vane. If there is a bias in the measurement from the nacelle-mounted wind vane, a reduction in power production will be observed. This bias could be caused by a number of issues such as: poor calibration, electromagnetic interference, rotor wake, or other effects. With a lidar mounted on the nacelle, a measurement of the wind could be made upstream of the wind turbine where the wind is not being influenced by the rotor's wake or induction zone. Field tests were conducted with the lidar measured yaw system and the nacelle wind vane measured yaw system. Results show that a lidar can be used to effectively measure the yaw error of the wind turbine, and for this experiment, they also showed an improvement in power capture because of reduced yaw misalignment when compared to the nacelle wind vane measured yaw system.

Scholbrock, A.; Fleming, P.; Wright, A.; Slinger, C.; Medley, J.; Harris, M.

2014-12-01T23:59:59.000Z

155

INEXPENSIVE CO{sub 2} THICKENING AGENTS FOR IMPROVED MOBILITY CONTROL OF CO{sub 2} FLOODS  

SciTech Connect (OSTI)

The objective of this research was the design, synthesis and evaluation of inexpensive, nonfluorous carbon dioxide thickening agents. We followed the same strategy employed in the design of fluorinated CO{sub 2} polymeric thickeners. First, a highly CO{sub 2}-philic, hydrocarbon-based monomer was to be identified. Polymers or oligomers of this monomer were then synthesized. The second step was to be completed only when a CO{sub 2}-soluble polymer that was soluble in CO{sub 2} at pressures comparable to the MMP was identified. In the second step, viscosity-enhancing associating groups were to be incorporated into the polymer to make it a viable thickener that exhibited high CO{sub 2} solubility at EOR MMP conditions. This final report documents the CO{sub 2} solubility of a series of commercial and novel polymers composed of carbon, hydrogen, oxygen and, in some cases, nitrogen.

Robert M. Enick; Eric J. Beckman; Andrew Hamilton

2004-10-01T23:59:59.000Z

156

Distributed Algorithms for Autonomous Mobile Robots  

Science Journals Connector (OSTI)

The distributed coordination and control of a team of autonomous mobile robots is a problem widely studied in a ... algorithmic limitations on what a set of autonomous mobile robots can achieve. In particular, th...

Nicola Santoro

2006-01-01T23:59:59.000Z

157

Mobile Advertising.  

E-Print Network [OSTI]

?? This report has been produced as a result of a Thesis assignment conducted at Ericsson. Itspurpose is to give an overview of the Mobile… (more)

Salim, Ali

2009-01-01T23:59:59.000Z

158

3 - Mobile Robot Dynamics  

Science Journals Connector (OSTI)

Mobile robot dynamics is a challenging field on its own, especially due to the variety of the imposed constraints. Delicate stability and control problems that have very often to be faced are due to longitudinal or lateral slip, and to the features of the ground (roughness, etc.). This chapter has the following objectives: (i) to present the general dynamic modeling concepts and techniques of robots, (ii) to study the Newton–Euler and Lagrange dynamic models of differential-drive mobile robots, (iii) to study the dynamics of differential-drive mobile robots with longitudinal and lateral slip, (iv) to derive a dynamic model of car-like wheeled mobile robots, (v) to derive a dynamic model of three-wheel omnidirectional robots, and (vi) to derive a dynamic model of four-wheel mecanum omnidirectional robots.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

159

Environmental Assessment for Proposed Access Control and Traffic Improvements at Los Alamos National Laboratory, Los Alamos, New Mexico  

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

29 29 Environmental Assessment for Proposed Access Control and Traffic Improvements at Los Alamos National Laboratory, Los Alamos, New Mexico August 23, 2002 Department of Energy National Nuclear Security Administration Los Alamos Site Office Environmental Assessment for Proposed Access Control and Traffic Improvements at LANL DOE LASO August 23, 2002 iii Contents ACRONYMS AND TERMS ......................................................................................................... VI EXECUTIVE SUMMARY......................................................................................................... VIII 1.0 PURPOSE AND NEED ............................................................................................................

160

Low-level stored waste inspection using mobile robots  

SciTech Connect (OSTI)

A mobile robot inspection system, ARIES (Autonomous Robotic Inspection Experimental System), has been developed for the U.S. Department of Energy to replace human inspectors in the routine, regulated inspection of radioactive waste stored in drums. The robot will roam the three-foot aisles of drums, stacked four high, making decisions about the surface condition of the drums and maintaining a database of information about each drum. A distributed system of onboard and offboard computers will provide versatile, friendly control of the inspection process. This mobile robot system, based on a commercial mobile platform, will improve the quality of inspection, generate required reports, and relieve human operators from low-level radioactive exposure. This paper describes and discusses primarily the computer and control processes for the system.

Byrd, J.S.; Pettus, R.O.

1996-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Reinventing Mobile Community Computing and Communication  

E-Print Network [OSTI]

Reinventing Mobile Community Computing and Communication (Position Paper) Yann Busnel, Nuno Cruz, smartphones and mobile applications spread like wildfire and dramatically improved aspects of our professional and mostly provide mobile versions of online Internet services or arcade games. With the exception of simple

Paris-Sud XI, Université de

162

Commercial Mobile Radio Service (WRI CMRS)  

E-Print Network [OSTI]

Commercial Mobile Radio Service (WRI ­ CMRS) Commercial Motor Vehicle Roadside Technology Corridor · Improved safety of CMVs and their operation · Reductions in accidents · Increased productivity and mobility · CMRS ­ Commercial Mobile Radio Services · Includes telematics devices (such as electronic on

163

Improvement of photovoltaic pumping systems based on standard frequency converters by means of programmable logic controllers  

SciTech Connect (OSTI)

Photovoltaic pumping systems (PVPS) based on standard frequency converters (SFCs) are currently experiencing a growing interest in pumping programmes implemented in remote areas because of their high performance in terms of component reliability, low cost, high power range and good availability of components virtually anywhere in the world. However, in practical applications there have appeared a number of problems related to the adaptation of the SFCs to the requirements of the photovoltaic pumping systems (PVPS). Another disadvantage of dedicated PVPS is the difficulty in implementing maximum power point tracking (MPPT). This paper shows that these problems can be solved through the addition of a basic industrial programmable logic controller (PLC) to the system. This PLC does not increase the cost and complexity of the system, but improves the adaptation of the SFC to the photovoltaic pumping system, and increases the overall performance of the system. (author)

Fernandez-Ramos, Jose [Departamento de Electronica, Universidad de Malaga, Complejo Tecnologico de Teatinos (2.2.39), 29071 Malaga (Spain); Narvarte-Fernandez, Luis; Poza-Saura, Fernando [Instituto de Energia Solar, Universidad Politecnica de Madrid (IES-UPM), Avenida Complutense s/n (204), 28040 Madrid (Spain)

2010-01-15T23:59:59.000Z

164

Novel imaging techniques, integrated with mineralogical, geochemical and microbiological characterizations to determine the biogeochemical controls on technetium mobility in FRC sediments  

SciTech Connect (OSTI)

The objective of this research program was to take a highly multidisciplinary approach to define the biogeochemical factors that control technetium (Tc) mobility in FRC sediments. The aim was to use batch and column studies to probe the biogeochemical conditions that control the mobility of Tc at the FRC. Background sediment samples from Area 2 (pH 6.5, low nitrate, low {sup 99}Tc) and Area 3 (pH 3.5, high nitrate, relatively high {sup 99}Tc) of the FRC were selected (http://www.esd.ornl.gov/nabirfrc). For the batch experiments, sediments were mixed with simulated groundwater, modeled on chemical constituents of FRC waters and supplemented with {sup 99}Tc(VII), both with and without added electron donor (acetate). The solubility of the Tc was monitored, alongside other biogeochemical markers (nitrate, nitrite, Fe(II), sulfate, acetate, pH, Eh) as the 'microcosms' aged. At key points, the microbial communities were also profiled using both cultivation-dependent and molecular techniques, and results correlated with the geochemical conditions in the sediments. The mineral phases present in the sediments were also characterized, and the solid phase associations of the Tc determined using sequential extraction and synchrotron techniques. In addition to the batch sediment experiments, where discrete microbial communities with the potential to reduce and precipitate {sup 99}Tc will be separated in time, we also developed column experiments where biogeochemical processes were spatially separated. Experiments were conducted both with and without amendments proposed to stimulate radionuclide immobilization (e.g. the addition of acetate as an electron donor for metal reduction), and were also planned with and without competing anions at high concentration (e.g. nitrate, with columns containing Area 3 sediments). When the columns had stabilized, as determined by chemical analysis of the effluents, we used a spike of the short-lived gamma emitter {sup 99m}Tc (50-200 MBq; half life 6 hours) and its mobility was monitored using a {gamma}-camera. Incorporation of low concentrations of the long-lived 99Tc gave a tracer that can be followed by scintillation counting, should the metastable form of the radionuclide decay to below detection limits before the end of the experiment (complete immobilization or loss of the Tc from the column). After the Tc was reduced and immobilized, or passed through the system, the columns were dismantled carefully in an anaerobic cabinet and the pore water geochemistry and mineralogy of the columns profiled. Microbial community analysis was determined, again using molecular and culture-dependent techniques. Experimental results were also modeled using an established coupled speciation and transport code, to develop a predictive tool for the mobility of Tc in FRC sediments. From this multidisciplinary approach, we hoped to obtain detailed information on the microorganisms that control the biogeochemical cycling of key elements at the FRC, and we would also be able to determine the key factors that control the mobility of Tc at environmentally relevant concentrations at this site.

Jonathan R. Lloyd

2009-02-03T23:59:59.000Z

165

Fault-tolerant control for current sensors of doubly fed induction generators based on an improved fault detection method  

Science Journals Connector (OSTI)

Abstract Fault-tolerant control of current sensors is studied in this paper to improve the reliability of a doubly fed induction generator (DFIG). A fault-tolerant control system of current sensors is presented for the DFIG, which consists of a new current observer and an improved current sensor fault detection algorithm. The current observer is constructed by using only voltage signals as inputs. The fault detection algorithm is based on the current observer, in which an adaptive threshold and different fault duration times are considered. The performance of the proposed observer, improved fault detection algorithm, and fault-tolerant control system are investigated by simulation. The results indicate that the outputs of the observer and the sensor are highly coherent. The fault detection algorithm can efficiently detect both soft and hard faults in current sensors, and the fault-tolerant control system can effectively tolerate both types of faults.

H. Li; C. Yang; Y.G. Hu; B. Zhao; M. Zhao; Z. Chen

2014-01-01T23:59:59.000Z

166

Mobile Health: Revolutionizing Healthcare Through Transdisciplinary Research  

Science Journals Connector (OSTI)

Mobile health (mHealth) seeks to improve individuals' health and well-being by continuously monitoring their status, rapidly diagnosing medical conditions, recognizing behaviors, and delivering just-in-time interventions, all in the user's natural mobile ... Keywords: Sensors,Mobile communication,Biomedical imaging,Medical services,Mobile handsets,Medical services,Biomedical monitoring,computing in medicine,mHealth,sensor networks,regulation

Santosh Kumar; Wendy Nilsen; Misha Pavel; Mani Srivastava

2013-01-01T23:59:59.000Z

167

Mobile IPMobile IP Mobile IPMobile IP  

E-Print Network [OSTI]

Mobile IPMobile IP #12;2 Mobile IPMobile IP · How do we support mobile users whose point of attachment to the network changes dynamically? #12;3 Mobile IPMobile IP · The goal of Mobile IP is to allow connectivity automatically, despite the change. · While Mobile IP can work with wired connections, where you

Yeom, Ikjun

168

Energize Mobile | Open Energy Information  

Open Energy Info (EERE)

Energize Mobile Energize Mobile Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energize Mobile Agency/Company /Organization: Tendril Sector: Energy Focus Area: Energy Efficiency Resource Type: Software/modeling tools User Interface: Mobile Device Website: www.tendrilinc.com/energy-providers/application/energize/ Web Application Link: www.tendrilinc.com/energy-providers/application/energize/ Cost: Free Energize Mobile Screenshot References: Tendril[1] Logo: Energize Mobile This application will let users monitor their energy use and costs, remotely control devices in their home, receive messages from their electric utility and see a list of energy efficiency tips and actions they can take to reduce their energy usage. Overview Tendril Energize enables energy providers to have a meaningful real-time

169

Energy efficiency improvements utilising mass flow control and a ring topology in a district heating network  

Science Journals Connector (OSTI)

Abstract Heating and cooling have a major role in the energy sector, covering 46% of total final energy use worldwide. District heating (DH) is a significant technology for improving the energy efficiency of heating systems in communities, because it enables waste heat sources to be utilised economically and therefore significantly reduces the environmental impacts of power generation. As a result of new and more stringent construction regulations for buildings, the heat demands of individual buildings are decreasing and more energy-efficient heating systems have to be developed. In this study, the energy efficiency of a new DH system which includes both a new control system called mass flow control and a new network design called a ring network is examined. A topology in the Helsinki region is studied by using a commercial DH network modelling tool, Grades Heating. The district heating network is attached to a wood-burning heat station which has a heat recovery system in use. Examination is performed by means of both technical and economic analysis. The new non-linear temperature programme that is required is adopted for supply and return temperatures, which allows greater temperature cooling and smaller flow rates. Lower district heating water temperatures are essential when reducing the heat losses in the network and heat production. Mass flow control allows smaller pressure drops in the network and thus reduces the pumping power. The aim of this study was to determine the most energy-efficient DH water supply temperatures in the case network. If the ring network design is utilised, the district heating system is easier to control. As a result the total heat consumption within the heating season is reduced compared to traditional DH systems. On the basis of the results, the new DH system is significantly more energy-efficient in the case network that was examined than the traditional design. For example, average energy losses within the constraints (which consist of heat losses, pumping energy, and surplus energy from the heat recovery system) are reduced from 4.4% to 3.1%.

Tatu Laajalehto; Maunu Kuosa; Tapio Mäkilä; Markku Lampinen; Risto Lahdelma

2014-01-01T23:59:59.000Z

170

Design Based on a Shared Lookup-Table for an Obstacle Avoidance Fuzzy Controller for Mobile Robots  

Science Journals Connector (OSTI)

Fuzzy algorithms provide intuitive method for robot obstacle avoidance. Fuzzy controllers incorporating a design based on lookup tables (LUT) enable faster obstacle avoidance in environment with multiple obstacles. In an earlier study, we introduced ... Keywords: robot navigation, obstacle avoidance, fuzzy controller, lookup table

Jinwook Kim; Yoon-Gu Kim; Young-Duk Kim; Won-Seok Kang; Jinung An

2009-11-01T23:59:59.000Z

171

Mobile and ubiquitous architecture for the medical control of chronic diseases through the use of intelligent devices: Using the architecture for patients with diabetes  

Science Journals Connector (OSTI)

This manuscript presents a mobile monitoring application to allow a patient to monitor a chronic disease using mobile devices. This application is developed according to three components that enable the semi-automatic development of software, independent ... Keywords: Ambient assisted living, Design pattern, Layers-distribution devices, Ontology, Parameterized mobile monitoring applications

Vladimir Villarreal, Jesus Fontecha, Ramon Hervas, Jose Bravo

2014-05-01T23:59:59.000Z

172

Terminal Box Airflow Reset: An Effective Operation and Control Strategy for Comfort Improvement and Energy Conservation  

E-Print Network [OSTI]

terminal boxes, the maximum potential zone load during unoccupied hours must be considered. The airflow reset may be implemented using the terminal box controller only. However, central control systems may have to be used for most of the existing... control systems. One method is to develop two control schedules (occupied and unoccupied). Based on the time, the central control system automatically switch between two schedules. (downloads the un-occupied schedule to the terminal box controller...

Liu, M.; Abbas, M.; Zhu, Y.; Claridge, D. E.

2002-01-01T23:59:59.000Z

173

ARM Mobile Facility (AMF2)  

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

ARM Mobile Facility (AMF2) ARM Mobile Facility (AMF2) The ARM Mobile Facility (AMF2) is a durable, oceangoing mobile climate observatory. In 2008, the second ARM Mobile Facility (AMF2) was developed to extend the capabilities of the original AMF (AMF1) deployed in 2005. The AMF2 is portable, modular, and suited for operations on oceangoing ships and in harsh environments. The AMF2 has improved data flow and communications (primarily wireless) and optimized operating procedures. AMF2 instrument capabilities include standard meteorological instrumentation, a broadband and spectral radiometer suite, and remote sensing instruments. This instrumentation provides researchers with data from climate regimes not previously explored. The AMF2 also has available space, power, and data processing capabilities for additional instruments

174

Mobile OFDM communications  

E-Print Network [OSTI]

G. L. Stuber, Principles of Mobile Communications, Kluweranalysis of OFDM in a mobile environment,” VehicularA statistical theory of mobile radio reception,” Bell Syst.

Wang, Tiejun

2006-01-01T23:59:59.000Z

175

An Innovative Pressure Sensor Glow Plug Offers Improved Diesel Engine Closed-loop Control  

Broader source: Energy.gov [DOE]

Describes glow plug with integrated pressure sensor for closed-loop control of diesel engine combustion

176

Mobile Facility  

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

Facility Facility AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 Data Operations AMF Fact Sheet Images Contacts AMF Deployments Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs, Colorado, 2010 Graciosa Island, Azores, 2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Mobile Facilities Pictured here in Gan, the second mobile facility is configured in a standard layout. Pictured here in Gan, the second mobile facility is configured in a standard layout. To explore science questions beyond those addressed by ARM's fixed sites at

177

Improving the Performance of a Two-Shell Column with Advanced Control  

E-Print Network [OSTI]

column has yielded stable operation with reduced utility consumption and increased capacity. Prior to the application of advanced controls this column was a plant capacity limit and composition control was very difficult. The advanced controls now... allow composition to be controlled within 15% of setpoint at both ends of the column. specific energy consumption has been reduced significantly, yielding higher potential capacity. The control strategies implemented include analyzer composition...

Morrison, T. A.; Laflamme, D.

178

Improving the Control Performance of an Organic Rankine Cycle System for Waste Heat Recovery from a Heavy-Duty  

E-Print Network [OSTI]

Improving the Control Performance of an Organic Rankine Cycle System for Waste Heat Recovery from and efficiency of those systems. The system considered here is an Organic Rankine Cycle (ORC) for recovering internal combustion engines presented in [1]. The system considered here is an Organic Rankine Cycle (ORC

Paris-Sud XI, Université de

179

Variable susceptance excitation control for dynamic performance improvement of a stand-alone wind turbine induction generator system  

Science Journals Connector (OSTI)

Isolated wind farms employ simple squirrel cage induction generators driven by variable speed wind turbines. Lacking control capability, such generation can contribute very little to network support. Wind turbines mostly do not take part in voltage and frequency control and if a disturbance occurs, the turbines may be disconnected and reconnected when normal operation has been resumed. From operation viewpoint, this is definitely not acceptable. A primary reason for the rigidity of operation is the lack of excitation adaptation under variable wind conditions. This article proposes incorporation of a variable capacitance controller at the generator terminal which will automatically adjust the needed excitation. Further improvement of transient profile of the stand-alone wind turbine generator has been proposed through inclusion of additional stabilising control. Simulation studies show that the proposed excitation controller with additional PID circuit provides very good transient profile following reasonable input torque variations.

A.H.M.A. Rahim; M. Ahsanul Alam

2009-01-01T23:59:59.000Z

180

Improved Engine Control Strategies Enabled by Digital Signal-Processing Method for Zirconia Exhaust Sensors  

Broader source: Energy.gov [DOE]

A new approach for wideband O2 sensor control that treats a pump-cell sensor not as a feedback controlled system, but as the analog? front-end of a modified Delta-Sigma analog-to-Digital Converter

Note: This page contains sample records for the topic "improved mobility control" 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

MobileMatch App  

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

MobileMatch VolunteerMatch Mobile App MobileMatch is a mobile extension (app) to LANL's VolunteerMatch site that allows volunteers to search, sign up and track hours. Contact...

182

Direct Power Control of Doubly-Fed Generator Based Wind Turbine Converters to Improve Low Voltage  

E-Print Network [OSTI]

Control (DPC) is discussed for Low Voltage Ride Through (LVRT) of DFIG based wind turbine converters power integration state that doubly fed induction generator (DFIG) controllers should be capable and maintaining dc bus voltage, then the DFIG will stay online during the disturbance. A fast acting controller

Kimball, Jonathan W.

183

Wavelet technique based islanding detection and improved repetitive current control for reliable operation of grid-connected PV systems  

Science Journals Connector (OSTI)

Abstract Recent years have witnessed a thrust towards the use of solar energy as the major renewable energy source for distributed power generation. The proposed system requires reliable detection technique and suitable current control strategy for proper operation. This paper focuses on plug-in repetitive current (RC) control strategy for grid connected inverter system and wavelet technique for electrical grid status identification. The performance of proposed current control technique employed for grid connected inverter system under distorted and unbalanced grid voltage is compared with the existing conventional methods like PI and PR controller. This controller uses the feedback control system for attenuating periodic disturbances, improving high quality sinusoidal output current and high power factor. The proposed scheme employs fourth order infinite impulse response (IIR) filter for maintaining its resonance frequency, output frequency matching with grid fundamental frequency and reduction of harmonics. The DC-DC boost converter implements incremental conductance based (INC) maximum power point tracker (MPPT) algorithm. The effects of LCL filter for improving disturbance rejection capability and dynamic performance of the proposed system is also demonstrated. Grid connected PV inverter employs wavelet technique for an islanding detection functionality in order to determine the status of the electrical grid. In order to show the effectiveness of the proposed algorithm, modeling and simulation for grid connected PV system is performed using MATLAB/SIMULINK and its PowerSim toolbox.

Smitha Joyce Pinto; Gayadhar Panda

2015-01-01T23:59:59.000Z

184

4 - Mobile Robot Sensors  

Science Journals Connector (OSTI)

The use of sensors is of paramount importance for closing the feedback control loops that secure efficient and automated/autonomous operation of mobile robots in real-life applications. Sensing methods provide higher level and intelligence capabilities that go far beyond the “preprogrammed” style of operation. This chapter provides a conceptual introduction to a number of important sensors for mobile robot operation and control. Specifically, the objectives of the chapter are (i) to provide a popular classification of sensors, along with their operational features, (ii) to discuss sonar, laser, and infrared sensors, (iii) to present an outline of robotic vision and its principal functions (including omnidirectional vision), (iv) to list the operation principles of gyroscope, compass, and force/tactile sensors, and (v) to give a brief introduction to the global positioning system.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

185

Heating, Ventilating, and Air-Conditioning: Recent Advances in Diagnostics and Controls to Improve Air-Handling System Performance  

SciTech Connect (OSTI)

The performance of air-handling systems in buildings needs to be improved. Many of the deficiencies result from myths and lore and a lack of understanding about the non-linear physical principles embedded in the associated technologies. By incorporating these principles, a few important efforts related to diagnostics and controls have already begun to solve some of the problems. This paper illustrates three novel solutions: one rapidly assesses duct leakage, the second configures ad hoc duct-static-pressure reset strategies, and the third identifies useful intermittent ventilation strategies. By highlighting these efforts, this paper seeks to stimulate new research and technology developments that could further improve air-handling systems.

Wray, Craig; Wray, Craig P.; Sherman, Max H.; Walker, I.S.; Dickerhoff, D.J.; Federspiel, C.C.

2008-02-01T23:59:59.000Z

186

Simulation Research of Smes With Fuzzy Logic Controller for Improving the Transient Stability in Wind Farm  

Science Journals Connector (OSTI)

The mathematic models for wind power generator and superconducting magnetic energy storage ... of SMES in improving the operation performance of wind farms is studied. The simulation results show that the propose...

Huang Xiaohua; Xiao Liye

2009-01-01T23:59:59.000Z

187

Efficiency and Reliability Improvement in Wind Turbine Converters by Grid Converter Adaptive Control  

E-Print Network [OSTI]

Efficiency and Reliability Improvement in Wind Turbine Converters by Grid Converter Adaptive stack shows efficiency increase in the high power region. Introduction Wind turbines are emerging energy test setup. Keywords >, Efficiency>>, >,

Munk-Nielsen, Stig

188

Improvement in commercial scale dry mill corn ethanol production using controlled flow cavitation and cellulose hydrolysis  

Science Journals Connector (OSTI)

During commercial-scale dry-mill ethanol production from corn, as much as 6 ... In this study, two methods to improve ethanol production during commercial-scale corn ethanol production were tested that release an...

David A. Ramirez-Cadavid; Oleg Kozyuk…

2014-09-01T23:59:59.000Z

189

Johnson Controls Develops an Improved Vehicle Battery, Works to Cut Battery Costs in Half  

Broader source: Energy.gov [DOE]

Johnson Controls is working to increase energy density of vehicle batteries while reducing manufacturing costs for lithium-ion battery cells.

190

Control of residual aluminum from conventional treatment to improve reverse osmosis performance  

E-Print Network [OSTI]

Deposit Control for Reverse Osmosis Systems , Technicalon Colloidal Fouling in Reverse Osmosis and NanofiltrationSiO 2 ) Scaling for Reverse Osmosis , ASTM Designation D

Gabelich, C J; Ishida, K P; Gerringer, F W; Evangelista, R; Kalyan, M; Suffet, I H

2006-01-01T23:59:59.000Z

191

Optimal control of investments for quality of supply improvement in electrical energy distribution networks  

Science Journals Connector (OSTI)

This paper considers the problem of deciding multi-period investments for maintenance and upgrade of electrical energy distribution networks. After describing the network as a constrained hybrid dynamical system, optimal control theory is applied to ... Keywords: Hybrid systems, Investment planning, Mixed-integer programming, Optimal control, Stochastic systems

A. Bemporad; D. Muñoz de la Peña; P. Piazzesi

2006-08-01T23:59:59.000Z

192

Nonlinear power flow feedback control for improved stability and performance of airfoil sections  

DOE Patents [OSTI]

A computer-implemented method of determining the pitch stability of an airfoil system, comprising using a computer to numerically integrate a differential equation of motion that includes terms describing PID controller action. In one model, the differential equation characterizes the time-dependent response of the airfoil's pitch angle, .alpha.. The computer model calculates limit-cycles of the model, which represent the stability boundaries of the airfoil system. Once the stability boundary is known, feedback control can be implemented, by using, for example, a PID controller to control a feedback actuator. The method allows the PID controller gain constants, K.sub.I, K.sub.p, and K.sub.d, to be optimized. This permits operation closer to the stability boundaries, while preventing the physical apparatus from unintentionally crossing the stability boundaries. Operating closer to the stability boundaries permits greater power efficiencies to be extracted from the airfoil system.

Wilson, David G.; Robinett, III, Rush D.

2013-09-03T23:59:59.000Z

193

Challenges and architectural approaches for authenticating mobile users  

Science Journals Connector (OSTI)

This paper casts an architectural eye at existing work on security and privacy in mobile computing. Specifically, it focuses on authentication as it leads up to access control from two points of view: servicer providers granting access to users, and ... Keywords: access control, anonymity, authentication, mobile computing, trust, ubiquitous computing, user mobility

João Pedro Sousa

2008-05-01T23:59:59.000Z

194

Improving liquid chemical intervention methods to control pathogens on fresh-cut fruits and vegetables  

E-Print Network [OSTI]

Factors that affect liquid chemical intervention methods of controlling pathogens on fresh-cut produce were investigated. The relationship between produce tissue structure (intercellular space, cell size, and cell distribution) and the sanitizing...

Troya, Maria Rosa

2006-08-16T23:59:59.000Z

195

Pitch Angle Control for Improving the Low Voltage Ride-Through Based on DFIG  

Science Journals Connector (OSTI)

Pitch angle control for wind generation is one of the most important segments in wind turbine. Wind turbine can capture the max wind energy which is called Maximum Power Point Tracking through regulating the p...

Ruming Li; Tianyu Liu; Qinghua Zhu; Li Zhang

2014-01-01T23:59:59.000Z

196

Control of residual aluminum from conventional treatment to improve reverse osmosis performance  

E-Print Network [OSTI]

2005. The Role of Dissolved Aluminum in Silica Chemistry forDraft Public Health Goal for Aluminum in Drinking Water .1994. Control of Residual Aluminum in Filtered Water . AWWA,

Gabelich, C J; Ishida, K P; Gerringer, F W; Evangelista, R; Kalyan, M; Suffet, I H

2006-01-01T23:59:59.000Z

197

Improvement of synchronous machine transient response by fast-acting phase-shift control  

Science Journals Connector (OSTI)

The transient response of a synchronous machine connected to a large system can be improved by the insertion of fast-acting phase shift. The concept is described in simple terms using the equal-area criterion and by computed results using a typical mathematical model. A strategy is then outlined to minimise the system disturbance.

A. El-Sersawi; D. O'Kelly

1981-01-01T23:59:59.000Z

198

GAO-04-986R Lawrence Livermore National Laboratory: Further Improvements Needed to Strengthen Controls Over the Purchase Card Program  

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

6R LLNL Purchase Card Controls 6R LLNL Purchase Card Controls United States Government Accountability Office Washington, DC 20548 August 6, 2004 Congressional Requesters Subject: Lawrence Livermore National Laboratory: Further Improvements Needed to Strengthen Controls Over the Purchase Card Program The Lawrence Livermore National Laboratory (LLNL) located in Livermore, California is a government-owned, contractor-operated national laboratory of the Department of Energy's (DOE) National Nuclear Security Administration (NNSA). 1 The University of California manages the lab under a cost-reimbursable contract with NNSA. The university is paid a management fee to operate the lab and is reimbursed for all allowable costs charged to the contract. During the fall of 2002, the Federal Bureau of Investigation began investigating two

199

INTRODUCTION Future mobile communication systems will con-  

E-Print Network [OSTI]

. In future mobile networks, wherein multiple types of cells (e.g., macro, micro, pico, and even femto, including network operator, vendor, access provider, ser- vice provider, software developer, contentS) of mobile networks have been greatly improved. New wireless service models and applications have been

200

Privacy in mobile technology for personal healthcare  

Science Journals Connector (OSTI)

Information technology can improve the quality, efficiency, and cost of healthcare. In this survey, we examine the privacy requirements of mobile computing technologies that have the potential to transform healthcare. Such mHealth technology enables ... Keywords: HIPAA, Privacy framework, e-health, electronic health record, home healthcare, mHealth, medicine, mobile healthcare, personal health record

Sasikanth Avancha; Amit Baxi; David Kotz

2012-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Initial Studies on Actionable Control for Improving Small Signal Stability in Interconnected Power Systems  

SciTech Connect (OSTI)

Power consumption and demand continues to grow around the world. As the electric power grid continues to be put under more stress, the conditions of instability are more likely to occur. One cause of such instabilities is intearea oscillations, such as the oscillation that resulted in the August 10, 1996 blackout of the WECC. This paper explores different potential operations of different devices on the power system to improve the damping of these interarea oscillations using two different simulation models

Tuffner, Francis K.; Huang, Zhenyu; Zhou, Ning; Guttromson, Ross T.; Jayantilal, Avnaesh

2010-06-14T23:59:59.000Z

202

Consumer value creation in mobile banking services  

Science Journals Connector (OSTI)

The paper presents findings of the study that explored consumer value creation in various mobile banking services. New electronic channels are replacing the more traditional ones. Mobile devices represent the recent development in electronic service distribution. An exploratory study was conducted on experienced electronic banking customers by using a qualitative in-depth interviewing method. The findings increase the understanding of customer-perceived value and value creation on the basis of attributes of mobile services and customer-perceived disadvantages of mobile phones in electronic banking context. The findings allow practitioners to improve their services and marketing strategies and pass on information to the academics about interesting future research areas.

Tommi Laukkanen; Jari Lauronen

2005-01-01T23:59:59.000Z

203

Comparative Analysis of Control Techniques for Efficiency Improvement in Electric Vehicles  

E-Print Network [OSTI]

-SVM scheme is the best candidate. Keywords--Electric vehicle, induction motor, efficiency, field oriented. In fact, the motor drive, comprising of the electric motor, power converter, and electronic controller by the driver. Many researches [2-3] have demonstrated the induction motor is one of the right electric motor

204

Modeling and improvement of direct power control of DFIG under unbalanced grid voltage condition  

Science Journals Connector (OSTI)

Abstract This paper presents analysis and control of a doubly-fed induction generator (DFIG)-based wind generation system operating under unbalanced grid voltage condition. The DFIG system is modeled in synchronous positive reference frame. System behavior and operation of both the generator and the grid side converter (GSC) under unbalanced condition is illustrated by definition of oscillating power terms in the synchronous reference frame. This analysis makes it possible to control both the active and reactive power generation by means of direct power control (DPC) technique. It is shown that considering the DFIG model in synchronous reference frame simplifies the power terms extraction. Moreover, alternative DFIG control targets such as reducing unbalanced stator current, torque and power pulsations minimization, are considered. In addition, by the proposed method, the oscillation of the stator output power is compensated by the GSC, to ensure constant power output from the overall DFIG generation system. The validation of results has been performed through simulation results on a 2 MW DFIG wind generation system.

Mohammad Jafar Zandzadeh; Abolfazl Vahedi

2014-01-01T23:59:59.000Z

205

Clock synchronization for mobile ad hoc networks  

E-Print Network [OSTI]

As mobile networking advances, there is a need for services such as clock synchronization that improve performance and support the development of higher-level applications. This can be achieved by adapting existing algorithms (such as the Network...

Chandra, Rajan

2013-02-22T23:59:59.000Z

206

Controlled mobility in sensor networks  

E-Print Network [OSTI]

K. Gupta. Optimizing energy-latency trade- o? in sensoras “Optimizing Energy-Latency Trade-o? in Sensor NetworksK. Gupta, “Optimizing Energy-Latency Trade-o? in Sensor

Sugihara, Ryo

2009-01-01T23:59:59.000Z

207

Controlled mobility in sensor networks  

E-Print Network [OSTI]

high altitudes [LCD03], long-term glacial movement [MHO04], temperature and humidity in the forest [BRY + 04, TPS

Sugihara, Ryo

2009-01-01T23:59:59.000Z

208

Mobile Media Poetics  

E-Print Network [OSTI]

J.L. and Sey, A. 2007. Mobile Communication and Society: AG. 2006. Cell Phone Culture: Mobile Technology in EverydayPortable, Pedestrian: Mobile Phones in Japanese Life, Ito,

Raley, Rita

2009-01-01T23:59:59.000Z

209

Design of improved controller for thermoelectric generator used in distributed generation  

Science Journals Connector (OSTI)

This paper investigates the application of thermal generation based on solid-state devices such as thermoelectric generators (TEGs) as a novel technological alternative of distributed generation (DG). The full detailed modeling and the dynamic simulation of a three-phase grid-connected TEG used as a dispersed generator is studied. Moreover, a new control scheme of the TEG is proposed, which consists of a multi-level hierarchical structure and incorporates a maximum power point tracker (MPPT) for better use of the thermal resource. In addition, reactive power compensation of the electric grid is included, operating simultaneously and independently of the active power generation. Validation of models and control schemes is performed by using the MATLAB/Simulink environment. Moreover, a small-scale TEG experimental set-up was employed to demonstrate the accuracy of proposed models.

M.G. Molina; L.E. Juanicó; G.F. Rinalde; E. Taglialavore; S. Gortari

2010-01-01T23:59:59.000Z

210

Microstructure control of Al-Cu films for improved electromigration resistance  

DOE Patents [OSTI]

A process for the forming of Al-Cu conductive thin films with reduced electromigration failures is useful, for example, in the metallization of integrated circuits. An improved formation process includes the heat treatment or annealing of the thin film conductor at a temperature within the range of from 200.degree. C. to 300.degree. C. for a time period between 10 minutes and 24 hours under a reducing atmosphere such as 15% H.sub.2 in N.sub.2 by volume. Al-Cu thin films annealed in the single phase region of a phase diagram, to temperatures between 200.degree. C. and 300.degree. C. have .theta.-phase Al.sub.2 Cu precipitates at the grain boundaries continuously become enriched in copper, due, it is theorized, to the formation of a thin coating of .theta.-phase precipitate at the grain boundary. Electromigration behavior of the aluminum is, thus, improved because the .theta.-phase precipitates with copper hinder aluminum diffusion along the grain boundaries. Electromigration, then, occurs mainly within the aluminum grains, a much slower process.

Frear, Darrel R. (Albuquerque, NM); Michael, Joseph R. (Albuquerque, NM); Romig, Jr., Alton D. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

211

Microstructure control of Al-Cu films for improved electromigration resistance  

DOE Patents [OSTI]

A process for the forming of Al-Cu conductive thin films with reduced electromigration failures is useful, for example, in the metallization of integrated circuits. An improved formation process includes the heat treatment or annealing of the thin film conductor at a temperature within the range of from 200 C to 300 C for a time period between 10 minutes and 24 hours under a reducing atmosphere such as 15% H[sub 2] in N[sub 2] by volume. Al-Cu thin films annealed in the single phase region of a phase diagram, to temperatures between 200 C and 300 C have [theta]-phase Al[sub 2] Cu precipitates at the grain boundaries continuously become enriched in copper, due, it is theorized, to the formation of a thin coating of [theta]-phase precipitate at the grain boundary. Electromigration behavior of the aluminum is, thus, improved because the [theta]-phase precipitates with copper hinder aluminum diffusion along the grain boundaries. Electromigration, then, occurs mainly within the aluminum grains, a much slower process. 5 figures.

Frear, D.R.; Michael, J.R.; Romig, A.D. Jr.

1994-04-05T23:59:59.000Z

212

Visual Navigation for Mobile Robots: A Survey  

Science Journals Connector (OSTI)

Mobile robot vision-based navigation has been the source of countless research contributions, from the domains of both vision and control. Vision is becoming more and more common in applications such as localization, automatic map construction, autonomous ... Keywords: Mobile robots, Visual navigation

Francisco Bonin-Font; Alberto Ortiz; Gabriel Oliver

2008-11-01T23:59:59.000Z

213

Improved process control through real-time measurement of mineral content  

SciTech Connect (OSTI)

In a highly collaborative research and development project with mining and university partners, sensors and data-analysis tools are being developed for rock-mass characterization and real-time measurement of mineral content. Determining mineralogy prior to mucking in an open-pit mine is important for routing the material to the appropriate processing stream. A possible alternative to lab assay of dust and cuttings obtained from drill holes is continuous on-line sampling and real-time x-ray fluorescence (XRF) spectroscopy. Results presented demonstrate that statistical analyses combined with XRF data can be employed to identify minerals and, possibly, different rock types. The objective is to create a detailed three-dimensional mineralogical map in real time that would improve downstream process efficiency.

Turler, Daniel; Karaca, Murat; Davis, William B.; Giauque, Robert D.; Hopkins, Deborah

2001-11-02T23:59:59.000Z

214

Continuous-time model reference adaptive control with improved transient performance  

E-Print Network [OSTI]

) for any piecewise continuous, uniformly bounded reference input signal r(t). In order to meet the control objective, we make the following standard assump- tions [26, 53] concerning the plant Gp(s) and the reference model I4 (s) ~ (Al) Rp(s) is a monic... polynomial of degree n. ~ (A2) Zp(s) is a monic Hurwitz polynomial of degree n, ( n. ~ (A3) The sign of kr and an upper bound k, ) 0 on [k?[ are known. Without any loss of generality, kr is assumed to be positive. Thus kr ( k ~ (A4) The relative degree n...

Ho, Ming-Tzu

1993-01-01T23:59:59.000Z

215

Development of a navigation system for heterogeneous mobile robots  

Science Journals Connector (OSTI)

Navigation systems often play an important role in mobile robot control. Many existing mobile robot navigation systems have been implemented and tested for particular types of robots. However, in some implementations, such as heterogeneous multi-robot systems, a generic navigation system can offer potential advantages. In such applications, a generic navigation system should be able account for robots with varying size, shape, drive type and sensor quantities. Additionally, it should be capable of offering a high degree of flexibility for navigation in known and unknown environments. Hence, a single generic navigation system that combines the benefits of reactive and deliberative control has been developed for heterogeneous mobile robots. The design of the hierarchical hybrid navigation system is based on the A* algorithm, a polar histogram and a modified dynamic window approach. Simulation experiments with three heterogeneous robots in a range of environments have been conducted. Performance of reactive navigation and hybrid reactive-deliberative navigation in known and unknown environments is evaluated. Favourable results are achieved with the developed reactive system. Hybrid reactive-deliberative navigation offers improved performance over reactive navigation in known environments. Deliberative control does not affect performance significantly in unknown environments. Initial hardware experiments demonstrate that the navigation system can work on real robots.

Praneel Chand; Dale A. Carnegie

2011-01-01T23:59:59.000Z

216

Method of controlling the side wall thickness of a turbine nozzle segment for improved cooling  

DOE Patents [OSTI]

A gas turbine nozzle segment has outer and inner bands and a vane extending therebetween. Each band has a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band has an inturned flange defining with the nozzle wall an undercut region. The outer surface of the side wall is provided with a step prior to welding the cover to the side wall. A thermal barrier coating is applied in the step and, after the cover is welded to the side wall, the side wall is finally machined to a controlled thickness removing all, some or none of the coating.

Burdgick, Steven Sebastian (Schenectady, NY)

2002-01-01T23:59:59.000Z

217

Modern Risk Control Techniques for Improving the Environmental Management System in Romanian HV Installations  

E-Print Network [OSTI]

Abstract Environmental protection keeps on being one of the main concerns of our company, together with the economic efficiency and providing of high quality energy services. The general goal of the environmental policy consists in improving the environmental management system and mitigating the power units ’ negative impact in compliance with the regulations in force. The specific goal accommodates the general goal to substations and electric lines, having as short and medium term target the compliance with the European requirements. As a result, more and more companies organise environmental studies and audits in order to evaluate their environmental performance. But such activities are not sufficient in themselves to provide the certainty that the performances comply to the regulation in force, and to the environment policy requirements. In order to become effective, these studies and audits have to be organised within a structured management, based on modern systems of global pollutants monitoring. These activities correspond to the ever stricter regulation and to the development of the economic policies and similar measures liable to stimulate environmental protection and the interest of the implied parties on environmental issues, sustainable development included. International standards on environmental management aim at providing the interested parties the fundamental elements of an environmental management

unknown authors

218

Hierarchical and modular fuzzy architecture for multiple mobile robots  

Science Journals Connector (OSTI)

Implementation of autonomous behaviours in mobile robots, using fuzzy logic control, requires formulation of rules that are collectively responsible for necessary levels of intelligence. This collection of rules can be conveniently decomposed and effectively implemented as a hierarchy of fuzzy behaviours. For this purpose, a hierarchical approach to the incremental design of complex robot behaviours based on fuzzy logic is proposed, since the primitive behaviours of individual robots have different aims and this may cause conflict. Some of these behaviours are competitive and some of them are cooperative. This paper also proposes a new behaviour coordination system between the competitive and cooperative methodologies with the aim of taking the advantages of robustness and optimised robot trajectories from both approaches. Simulated and real experiments have been conducted on a team of mobile robots performing a proof-of-concept dynamic target tracking task. The results show an improvement in the overall group performance even in cluttered environment.

M.H. Awadalla

2009-01-01T23:59:59.000Z

219

Postoperative Radiotherapy for Lung Cancer: Improvement in Locoregional Control Using Three-Dimensional Compared With Two-Dimensional Technique  

SciTech Connect (OSTI)

Purpose: To determine whether lung cancer patients treated with three-dimensional (3D) postoperative radiotherapy (PORT) have more favorable outcomes than those treated with two-dimensional (2D) PORT. Patients and Methods: We retrospectively analyzed the charts of 153 lung cancer patients who underwent PORT with curative intent at our center between 1995 and 2007. The patients were grouped according to the RT technique; 66 patients were in the 2D group and 87 in the 3D group. The outcomes included locoregional control, survival, and secondary effects. All patients were treated using a linear accelerator at a total dose of approximately 50 Gy and 2 Gy/fraction. A few patients (21%) also received chemotherapy. Most tumors were in the advanced stage, either Stage II (30%) or Stage III (65%). The main clinical indications for PORT were positive resection margins (23%) and Stage pN2 (52%) and pN1 (22%). The patient characteristics were comparable in both groups. Results: Kaplan-Meier analysis showed that the 3D technique significantly improved the locoregional control rate at 5 years compared with the 2D technique (81% vs. 56%, p = .007 [Cox]). The 2D technique was associated with a more than twofold increased risk of locoregional recurrence (hazard ratio, 2.7; 95% confidence interval, 1.3-5.5; p = .006). The overall survival rate did not differ at 5 years (38% vs. 20%, p = .3 [Cox]). The toxicities were also similar and acceptable in both groups. Conclusion: The 3D technique for conformal PORT for lung cancer improved the locoregional control rates of patients compared with the 2D technique.

Masson-Cote, Laurence [Department of Radiation Oncology, Centre Hospitalier Universitaire de Quebec-L'Hotel-Dieu de Quebec, Quebec City, QC (Canada); Couture, Christian [Departments of Anatomic Pathology and Cytology, Institut Universitaire de Cardiologie et de Pneumologie de Quebec (Hopital Laval), Quebec City, QC (Canada); Fortin, Andre [Department of Radiation Oncology, Centre Hospitalier Universitaire de Quebec-L'Hotel-Dieu de Quebec, Quebec City, QC (Canada); Dagnault, Anne, E-mail: anne.dagnault@mail.chuq.qc.ca [Department of Radiation Oncology, Centre Hospitalier Universitaire de Quebec-L'Hotel-Dieu de Quebec, Quebec City, QC (Canada)

2011-07-01T23:59:59.000Z

220

Healthcare mobile information flow  

Science Journals Connector (OSTI)

There are a variety of mobile technologies currently available that have increased the potential for healthcare practitioners to access clinical decision support resources delivered over an array of mobile devices as a component of clinical workflow. ... Keywords: Clinical Decision Support, Ehrs, Healthcare, Healthcare Mobile Technology, Ipads In Healthcare, Market Drivers, Mobile Devices, Smartphones In Healthcare

Victor Camlek

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

CDC will Test Trailers and Mobile Homes for Formaldehyde  

E-Print Network [OSTI]

CDC will Test Trailers and Mobile Homes for Formaldehyde At FEMA's request, the Centers for Disease Control and Prevention (CDC) will do tests for formaldehyde in a total of 500 trailers and mobile homes provided by FEMA. CDC will test trailers and mobile homes in Louisiana and in Mississippi to learn more

222

An Adaptive Memory Interface Controller for Improving Bandwidth Utilization of Hybrid and Reconfigurable Systems  

SciTech Connect (OSTI)

Emerging applications such as data mining, bioinformatics, knowledge discovery, social network analysis are irregular. They use data structures based on pointers or linked lists, such as graphs, unbalanced trees or unstructures grids, which generates unpredictable memory accesses. These data structures usually are large, but difficult to partition. These applications mostly are memory bandwidth bounded and have high synchronization intensity. However, they also have large amounts of inherent dynamic parallelism, because they potentially perform a task for each one of the element they are exploring. Several efforts are looking at accelerating these applications on hybrid architectures, which integrate general purpose processors with reconfigurable devices. Some solutions, which demonstrated significant speedups, include custom-hand tuned accelerators or even full processor architectures on the reconfigurable logic. In this paper we present an approach for the automatic synthesis of accelerators from C, targeted at irregular applications. In contrast to typical High Level Synthesis paradigms, which construct a centralized Finite State Machine, our approach generates dynamically scheduled hardware components. While parallelism exploitation in typical HLS-generated accelerators is usually bound within a single execution flow, our solution allows concurrently running multiple execution flow, thus also exploiting the coarser grain task parallelism of irregular applications. Our approach supports multiple, multi-ported and distributed memories, and atomic memory operations. Its main objective is parallelizing as many memory operations as possible, independently from their execution time, to maximize the memory bandwidth utilization. This significantly differs from current HLS flows, which usually consider a single memory port and require precise scheduling of memory operations. A key innovation of our approach is the generation of a memory interface controller, which dynamically maps concurrent memory accesses to multiple ports. We present a case study on a typical irregular kernel, Graph Breadth First search (BFS), exploring different tradeoffs in terms of parallelism and number of memories.

Castellana, Vito G.; Tumeo, Antonino; Ferrandi, Fabrizio

2014-05-30T23:59:59.000Z

223

Paravertebral Block: An Improved Method of Pain Control in Percutaneous Transhepatic Biliary Drainage  

SciTech Connect (OSTI)

Background and Purpose. Percutaneous transhepatic biliary drainage remains a painful procedure in many cases despite the routine use of large amounts of intravenous sedation. We present a feasibility study of thoracic paravertebral blocks in an effort to reduce pain during and following the procedure and reduce requirements for intravenous sedation. Methods. Ten consecutive patients undergoing biliary drainage procedures received fluoroscopically guided paravertebral blocks and then had supplemental intravenous sedation as required to maintain patient comfort. Levels T8-T9 and T9-T10 on the right were targeted with 10-20 ml of 0.5% bupivacaine. Sedation requirements and pain levels were recorded. Results. Ten biliary drainage procedures in 8 patients were performed for malignancy in 8 cases and for stones in 2. The mean midazolam use was 1.13 mg IV, and the mean fentanyl requirement was 60.0 {mu}g IV in the block patients. Two episodes of hypotension, which responded promptly to volume replacement, may have been related to the block. No serious complications were encountered. The mean pain score when traversing the chest wall, liver capsule, and upon entering the bile ducts was 0.1 on a scale of 0 to 10, with 1 patient reporting a pain level of 1 and 9 reporting 0. The mean peak pain score, encountered when manipulating at the common bile duct level or when addressing stones there, was 5.4 and ranged from 0 to 10. Conclusions. Thoracic paravertebral block with intravenous sedation supplementation appears to be a feasible method of pain control during biliary interventions.

Culp, William C., E-mail: culpwilliamc@uams.edu; McCowan, Timothy C. [University of Arkansas for Medical Sciences, Department of Radiology (United States); DeValdenebro, Miguel [University of Texas Medical Branch, Department of Anesthesiology (United States); Wright, Lonnie B.; Workman, James L. [University of Arkansas for Medical Sciences, Department of Radiology (United States); Culp, William C. [Scott and White Clinic and Memorial Hospital, The Texas A and M University System Health Science Center College of Medicine, Department of Anesthesiology (United States)

2006-12-15T23:59:59.000Z

224

Integrated flue gas treatment for simulataneous emission control and heat rate improvement - demonstration project at Ravenswood  

SciTech Connect (OSTI)

Results are presented for electric-utility, residual-oil fired, field demonstration testing of advanced-design, heat-recovery type, flue gas sub-coolers that incorporate sulfite-alkali-based wet scrubbing for efficient removal of volatile and semi-volatile trace elements, sub-micron solid particulate matter, SO{sub 2} and SO{sub 3}. By innovative adaptation of wet collector system operation with methanol injection into the rear boiler cavity to convert flue-gas NO to No{sub 2}, simultaneous removal of NO{sub x} is also achieved. The focus of this integrated flue gas treatment (IFGT) technology development and demonstration-scale, continuous performance testing is an upward-gas-flow, indirectly water-cooled, condensing heat exchanger fitted with acid-proof, teflon-covered tubes and tubesheets and that provides a unique condensing (non-evaporative) wet-scrubbing mode to address air toxics control objectives of new Clean Air Act, Title III. Advantageous trace-metal condensation/nucleation/agglomeration along with substantially enhanced boiler efficiency is accomplished in the IFGT system by use of boiler makeup water as a heat sink in indirectly cooling boiler flue gas to a near-ambient-temperature, low-absolute-humidity, water-saturated state. Moreover, unique, innocuous, stack systems design encountered with conventional high-humidity, wet-scrubber operations. The mechanical design of this advanced flue-gas cooling/scrubbing equipment is based on more than ten years of commercial application of such units is downward-gas-flow design/operation for energy recovery, e.g. in preheating of makeup water, in residual-oil and natural-gas fired boiler operations.

Heaphy, J.; Carbonara, J.; Cressner, A. [Consolidated Edison Company, New York, NY (United States)] [and others

1995-06-01T23:59:59.000Z

225

ENHANCING MOBILITY IN THE HOUSTON-GALVESTON REGION  

E-Print Network [OSTI]

1 ENHANCING MOBILITY IN THE HOUSTON-GALVESTON REGION RESEARCH AREA 4 IMPROVED TRANSPORTATION on the Mobility Checklist Concepts and Procedures that Improve Long-Range Transportation Plans April 2009 Texas efforts in the Houston-Galveston region over the past several years to communicate the benefits

226

Silica Scale Management: Lowering Operating Costs through Improved Scale Control, and Adding Value by Extracting Marketable By-Products  

SciTech Connect (OSTI)

We are using laboratory and field experiments to design modeling tools and technology that will improve silica scale management practices in geothermal plants. Our work will help to lower operating costs through improved scale prediction and add new revenue streams from sale of mineral byproducts extracted from geothermal fluids. Improving the economics and effectiveness of scale control programs and/or extraction systems in geothermal operations requires a coupled kinetic-thermodynamic model of silica behavior. Silica scale precipitation is a multi-step process, involving a nucleation-related induction period, aqueous polymerization, condensation of polymers to form colloids, and deposition onto a solid surface. Many chemical and physical variables influence the rates of these steps and their impacts must be quantified and predictable in order to optimally control silica behavior. To date, in laboratory studies, we have quantified the effects on silica polymerization of the following set of chemical variables: Na at 500 and 2000 ppm, pH values from 5 to 9, temperatures of 25 and 50 C, and silica saturation values from 1.2 to 6 at initial dissolved silica concentrations of 600 ppm. Lowering pH both increases the induction time prior to polymerization and decreases the polymerization rate. We have successfully used a multiple regression model to predict polymerization rates from these variables. Geothermal fluids contain significant dissolved concentrations of potentially valuable mineral resources such as zinc, lithium, cesium and rubidium, but silica fouling interferes with traditional extraction methods. We are developing customized and new technologies to extract the silica as a commercial-grade commodity as well as the valuable metals. We are conducting field testing of some of these techniques at a Mammoth, CA geothermal plant using a reverse osmosis unit to concentrate the fluid, adding a commercial agglomerating agent to promote silica precipitation, and then removing the silica using a tangential flow ultrafilter. The particle size, surface area and trace impurities of the silica are characterized for comparison with commercial-grade silica products. We are also testing ion exchange resins and other functionalized materials to extract potentially economic concentrations of lithium, cesium, and rubidium that are enriched in the reverse osmosis concentrate.

Burton, E A; Bourcier, W L; Wallce, A; Bruton, C J; Leif, R

2003-06-18T23:59:59.000Z

227

Effectiveness of a clinical intervention in improving pain control in outpatients with cancer treated by radiation therapy  

SciTech Connect (OSTI)

Purpose: To determine the effectiveness of a multicomponent clinical intervention to reduce pain in outpatients with cancer. Methods and Materials: Sixty-four patients were randomly assigned to receive either a clinical intervention including an information session, the use of a pain diary, and the possibility to contact a physician to adjust the pain medication, or the usual treatment of pain by the staff radiation oncologist. All patients reported their average and worst pain levels at baseline and 2 and 3 weeks after the start of the intervention. Results: The study groups were similar with respect to their baseline characteristics and pain levels at randomization. After 3 weeks, the average and worst pain experienced by patients randomized to the clinical intervention group was significantly inferior to the average pain experienced by patients in the control group (2.9/10 vs. 4.4/10 and 4.2/10 vs. 5.5/10, respectively). Results showed that the experimental group patients decreased their pain levels more than the control group patients did over time. Conclusion: An intervention including patient education, a pain diary, and defining a procedure for therapeutic adjustments can be effective to improve pain relief in outpatients with cancer.

Vallieres, Isabelle [Department of Radiation Oncology, Centre Hospitalier Universitaire de Quebec-Hotel-Dieu de Quebec, Quebec City (Canada)]. E-mail: isabelle.vallieres@mail.chuq.qc.ca; Aubin, Michele [Department of Family Medicine, Laval Hospital, Quebec City, Quebec (Canada); Blondeau, Lucie [Department of Radiation Oncology, Centre Hospitalier Universitaire de Quebec-Hotel-Dieu de Quebec, Quebec City (Canada); Simard, Serge [Research Centre of Laval Hospital, Laval University, Sainte-Foy, Quebec (Canada); Giguere, Anik [Palliative Care Research Team, Laval University, Quebec City, Quebec (Canada)

2006-09-01T23:59:59.000Z

228

SCADA architecture with mobile remote components  

Science Journals Connector (OSTI)

With the advent of new technologies, the demand of connecting IT systems to the Internet is increasing. This is also the case for Control systems specifically SCADA (Supervisory Control and Data Acquisition) systems. Traditional SCADA systems are connected ... Keywords: SCADA, control systems, mobility, remote components

Tai-Hoon Kim

2010-08-01T23:59:59.000Z

229

Architecture for SCADA with mobile remote components  

Science Journals Connector (OSTI)

With the advent of new technologies, the demand of connecting IT systems to the Internet is increasing. This is also the case for Control systems specifically SCADA (Supervisory Control And Data Acquisition) systems. Traditional SCADA systems are connected ... Keywords: SCADA, control systems, mobility, remote components

Rosslin John Robles; Tai-Hoon Kim

2010-05-01T23:59:59.000Z

230

Improving controllable adhesion on both rough and smooth surfaces with a hybrid electrostatic/gecko-like adhesive  

Science Journals Connector (OSTI)

...sandwich panel, graphite M55J, thermal black paint on aluminium, copper-clad Rogers 4003...applications in manufacturing, mobile robots and grappling objects in a space environment...steel polished 34.8 36.0 32.1 35.2 paint thermal black S13 on aluminium 0.1 5...

2014-01-01T23:59:59.000Z

231

Characterization of interface states in Al{sub 2}O{sub 3}/AlGaN/GaN structures for improved performance of high-electron-mobility transistors  

SciTech Connect (OSTI)

We have investigated the relationship between improved electrical properties of Al{sub 2}O{sub 3}/AlGaN/GaN metal-oxide-semiconductor high-electron-mobility transistors (MOS-HEMTs) and electronic state densities at the Al{sub 2}O{sub 3}/AlGaN interface evaluated from the same structures as the MOS-HEMTs. To evaluate Al{sub 2}O{sub 3}/AlGaN interface state densities of the MOS-HEMTs, two types of capacitance-voltage (C-V) measurement techniques were employed: the photo-assisted C-V measurement for the near-midgap states and the frequency dependent C-V characteristics for the states near the conduction-band edge. To reduce the interface states, an N{sub 2}O-radical treatment was applied to the AlGaN surface just prior to the deposition of the Al{sub 2}O{sub 3} insulator. As compared to the sample without the treatment, the N{sub 2}O-radical treated Al{sub 2}O{sub 3}/AlGaN/GaN structure showed smaller frequency dispersion of the C-V curves in the positive gate bias range. The state densities at the Al{sub 2}O{sub 3}/AlGaN interface were estimated to be 1?×?10{sup 12}?cm{sup ?2}?eV{sup ?1} or less around the midgap and 8?×?10{sup 12}?cm{sup ?2}?eV{sup ?1} near the conduction-band edge. In addition, we observed higher maximum drain current at the positive gate bias and suppressed threshold voltage instability under the negative gate bias stress even at 150?°C. Results presented in this paper indicated that the N{sub 2}O-radical treatment is effective both in reducing the interface states and improving the electrical properties of the Al{sub 2}O{sub 3}/AlGaN/GaN MOS-HEMTs.

Hori, Y.; Yatabe, Z. [Research Center for Integrated Quantum Electronics (RCIQE) and Graduate School of Information Science and Technology, Hokkaido University, North 13 West 8, Sapporo, 060-8628 Hokkaido (Japan); Hashizume, T., E-mail: hashi@rciqe.hokudai.ac.jp [Research Center for Integrated Quantum Electronics (RCIQE) and Graduate School of Information Science and Technology, Hokkaido University, North 13 West 8, Sapporo, 060-8628 Hokkaido (Japan); Japan Science and Technology Agency (JST), CREST, Tokyo 102-0075 (Japan)

2013-12-28T23:59:59.000Z

232

Mobile Window Thermal Test  

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

Mobile Window Thermal Test (MoWiTT) Facility Mobile Window Thermal Test (MoWiTT) Facility winter.jpg (469135 bytes) The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed to help buildings retain some of the energy that would have leaked out of less efficient windows. Designing efficient window-and-frame systems is one strategy for reducing the energy use of buildings. But the net energy flowing through a window is a combination of temperature- driven thermal flows and transmission of incident solar energy, both of which vary with time. U-factor and solar heat gain coefficient (SHGC), the window properties that control these flows, depend partly on ambient conditions. Window energy flows can affect how much energy a building uses, depending on when the window flows are available to help meet other energy demands within the building, and when they are adverse, adding to building energy use. This leads to a second strategy for reducing building energy use: using the beneficial solar gain available through a window, either for winter heating or for daylighting, while minimizing adverse flows.

233

Development of Methodologies for Technology Deployment for Advanced Outage Control Centers that Improve Outage Coordination, Problem Resolution and Outage Risk Management  

SciTech Connect (OSTI)

This research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which is a research and development (R&D) program sponsored by Department of Energy (DOE) and performed in close collaboration with industry R&D programs that provides the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRS program serves to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The long term viability of existing nuclear power plants in the U.S. will depend upon maintaining high capacity factors, avoiding nuclear safety issues and reducing operating costs. The slow progress in the construction on new nuclear power plants has placed in increased importance on maintaining the output of the current fleet of nuclear power plants. Recently expanded natural gas production has placed increased economic pressure on nuclear power plants due to lower cost competition. Until recently, power uprate projects had steadily increased the total output of the U.S. nuclear fleet. Errors made during power plant upgrade projects have now removed three nuclear power plants from the U.S. fleet and economic considerations have caused the permanent shutdown of a fourth plant. Additionally, several utilities have cancelled power uprate projects citing economic concerns. For the past several years net electrical generation from U.S. nuclear power plants has been declining. One of few remaining areas where significant improvements in plant capacity factors can be made is in minimizing the duration of refueling outages. Managing nuclear power plant outages is a complex and difficult task. Due to the large number of complex tasks and the uncertainty that accompanies them, outage durations routinely exceed the planned duration. The ability to complete an outage on or near schedule depends upon the performance of the outage management organization. During an outage, the outage control center (OCC) is the temporary command center for outage managers and provides several critical functions for the successful execution of the outage schedule. Essentially, the OCC functions to facilitate information inflow, assist outage management in processing information and to facilitate the dissemination of information to stakeholders. Currently, outage management activities primarily rely on telephone communication, face to face reports of status and periodic briefings in the OCC. Much of the information displayed in OCCs is static and out of date requiring an evaluation to determine if it is still valid. Several advanced communication and collaboration technologies have shown promise for facilitating the information flow into, across and out of the OCC. Additionally, advances in the areas of mobile worker technologies, computer based procedures and electronic work packages can be leveraged to improve the availability of real time status to outage managers.

Shawn St. Germain; Ronald Farris; Heather Medeman

2013-09-01T23:59:59.000Z

234

Foam for improving sweep efficiency in subterranean oil-bearing formations  

SciTech Connect (OSTI)

This patent describes a conformance improvement treatment process for a subterranean oil-bearing formation having a region of higher permeability and a region of lower permeability. It comprises injecting a foam into the region of higher permeability to reduce the permeability therein, the foam comprising a crosslinkable carboxylate-containing polymer, a crosslinking agent capable of crosslinking the polymer, a surfactant, a liquid solvent, and a foaming gas. A process for recovering oil from a subterranean oil-bearing formation by improving the mobility of a displacement fluid, the process. It comprises preparing a flowing mobility control foam comprising a crosslinkable polymer, a crosslinking agent capable of crosslinking the polymer, a surfactant, a liquid solvent, and a foaming gas; and displacing the foam through the formation by the displacement fluid to control the mobility of the displacement fluid in the formation.

Sydansk, R.D.

1992-04-21T23:59:59.000Z

235

Search Technology Goes Mobile  

Science Journals Connector (OSTI)

The competition among search providers to attract users and increase advertising revenues has moved to the wireless battlefield, and vendors are now promoting new mobile services. Keywords: wireless technology, mobile services, search

Linda Dailey Paulson

2005-08-01T23:59:59.000Z

236

Safety Shoe Mobile  

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

Safety and Training Safety Notices Safety Shoe Mobile The Safety Shoe Mobile comes to Argonne every Monday on the following schedule: 200 Area: 0800 - 1200 360 Area: 1300 - 1630...

237

Ion mobility sensor system  

DOE Patents [OSTI]

An ion mobility sensor system including an ion mobility spectrometer and a differential mobility spectrometer coupled to the ion mobility spectrometer. The ion mobility spectrometer has a first chamber having first end and a second end extending along a first direction, and a first electrode system that generates a constant electric field parallel to the first direction. The differential mobility spectrometer includes a second chamber having a third end and a fourth end configured such that a fluid may flow in a second direction from the third end to the fourth end, and a second electrode system that generates an asymmetric electric field within an interior of the second chamber. Additionally, the ion mobility spectrometer and the differential mobility spectrometer form an interface region. Also, the first end and the third end are positioned facing one another so that the constant electric field enters the third end and overlaps the fluid flowing in the second direction.

Xu, Jun; Watson, David B.; Whitten, William B.

2013-01-22T23:59:59.000Z

238

Autonomous Virtual Mobile Nodes  

E-Print Network [OSTI]

This paper presents a new abstraction for virtual infrastructure in mobile ad hoc networks. An AutonomousVirtual Mobile Node (AVMN) is a robust and reliable entity that is designed to cope with theinherent difficulties ...

Dolev, Shlomi

2005-06-15T23:59:59.000Z

239

Technological developments to improve combustion efficiency and pollution control in coal-fired power stations in Japan  

SciTech Connect (OSTI)

In 1975, approximately 60 percent of all power generating facilities in Japan were oil fired. The oil crisis in the 1970s, however, led Japanese power utilities to utilize alternatives to oil as energy sources, including nuclear power, coal, LNG, and others. As a result, by 1990, the percentage of oil-fired power generation facilities had declined to approximately 31 percent. On the other hand, coal-fired power generation, which accounted for 5.7 percent of all facilities in 1975, increased its share to 7.5 percent in 1990 and is anticipated to expand further to 13 percent by the year 2000. In order to increase the utilization of coal-fired power generation facilities in Japan, it is necessary to work out thorough measures to protect the environment, mainly to control air pollution. The technologies that are able to do this are already available. The second issue is how to improve efficiency. In this chapter, I would like to introduce technological developments that improve efficiency and that protect the environment which have been implemented in coal-fired power stations in Japan. Examples of the former, include the atmospheric fluidized bed combustion (AFBC) boiler, the pressurized fluidized bed combustion (PFBC) boiler, and the ultra super-critical (USC) steam condition turbine, and an example of the latter is the dry deSOx/deNOx. Although details are not provided in this paper, there are also ongoing projects focusing on the development of technology for integrated gasification combined cycle generation, fuel cells and other systems undertaken by the government, i.e., the Ministry of International Trade and Industry (MITI), which is committed to the New Energy and Industrial Technology Development Organization (NEDO).

Miyasaka, Tadahisa

1993-12-31T23:59:59.000Z

240

New process modeling [sic], design, and control strategies for energy efficiency, high product quality, and improved productivity in the process industries. Final project report  

SciTech Connect (OSTI)

This project was concerned with the development of process design and control strategies for improving energy efficiency, product quality, and productivity in the process industries. In particular, (i) the resilient design and control of chemical reactors, and (ii) the operation of complex processing systems, was investigated. Specific topics studied included new process modeling procedures, nonlinear controller designs, and control strategies for multiunit integrated processes. Both fundamental and immediately applicable results were obtained. The new design and operation results from this project were incorporated into computer-aided design software and disseminated to industry. The principles and design procedures have found their way into industrial practice.

Ray, W. Harmon

2002-06-05T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile Conference Connection Conferencing  

E-Print Network [OSTI]

Mobile Conference Connection Conferencing · Help increase productivity while out of the office-mail meeting invitations from your mobile device · Access to "Click to Join" features · Initiate an Instant or other mobile devices can provide a quick and efficient means to respond to work demands. But, what

242

Vision for Mobile Robots  

Science Journals Connector (OSTI)

...1992 research-article Vision for Mobile Robots Michael Brady Han Wang Localized...determine scene structure for a mobile robot using stereo or structure from motion. It is argued that a mobile robot may not need to compute depth explicitly...

1992-01-01T23:59:59.000Z

243

Mobile Technology Management  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The order establishes requirements, assigns responsibilities, and provides guidance for federal mobile technology management and employee use of both government furnished and personally-owned mobile devices within DOE and NNSA. Establishes requirements for use of User Agreements to govern mobile devices used for official duties. Does not cancel other directives.

2014-05-15T23:59:59.000Z

244

Auctioning Bulk Mobile Messages  

Science Journals Connector (OSTI)

The search for enablers of continued growth of SMS traffic, as well as the take-off of the more diversified MMS message contents, open up for enterprises the potential of bulk use of mobile messaging, instead of essentially one-by-one use. In parallel, ... Keywords: EMS, MMS, SMS, auctions, mobile commerce, mobile operators, multi-attribute auctions

S. Meij; L. -F. Pau

2006-05-01T23:59:59.000Z

245

Surfactant-Polymer Interaction for Improved Oil Recovery  

SciTech Connect (OSTI)

The goal of this research was to use the interaction between a surfactant and a polymer for efficient displacement of tertiary oil by improving slug integrity, oil solubility in the displacing fluid and mobility control. Surfactant-polymer flooding has been shown to be highly effective in laboratory-scale linear floods. The focus of this proposal is to design an inexpensive surfactant-polymer mixture that can efficiently recover tertiary oil by avoiding surfactant slug degradation and viscous/heterogeneity fingering.

Gabitto, Jorge; Mohanty, Kishore K.

2002-01-07T23:59:59.000Z

246

Control over structure-specific flexibility improves anatomical accuracy for point-based deformable registration in bladder cancer radiotherapy  

SciTech Connect (OSTI)

Purpose: Future developments in image guided adaptive radiotherapy (IGART) for bladder cancer require accurate deformable image registration techniques for the precise assessment of tumor and bladder motion and deformation that occur as a result of large bladder volume changes during the course of radiotherapy treatment. The aim was to employ an extended version of a point-based deformable registration algorithm that allows control over tissue-specific flexibility in combination with the authors' unique patient dataset, in order to overcome two major challenges of bladder cancer registration, i.e., the difficulty in accounting for the difference in flexibility between the bladder wall and tumor and the lack of visible anatomical landmarks for validation. Methods: The registration algorithm used in the current study is an extension of the symmetric-thin plate splines-robust point matching (S-TPS-RPM) algorithm, a symmetric feature-based registration method. The S-TPS-RPM algorithm has been previously extended to allow control over the degree of flexibility of different structures via a weight parameter. The extended weighted S-TPS-RPM algorithm was tested and validated on CT data (planning- and four to five repeat-CTs) of five urinary bladder cancer patients who received lipiodol injections before radiotherapy. The performance of the weighted S-TPS-RPM method, applied to bladder and tumor structures simultaneously, was compared with a previous version of the S-TPS-RPM algorithm applied to bladder wall structure alone and with a simultaneous nonweighted S-TPS-RPM registration of the bladder and tumor structures. Performance was assessed in terms of anatomical and geometric accuracy. The anatomical accuracy was calculated as the residual distance error (RDE) of the lipiodol markers and the geometric accuracy was determined by the surface distance, surface coverage, and inverse consistency errors. Optimal parameter values for the flexibility and bladder weight parameters were determined for the weighted S-TPS-RPM. Results: The weighted S-TPS-RPM registration algorithm with optimal parameters significantly improved the anatomical accuracy as compared to S-TPS-RPM registration of the bladder alone and reduced the range of the anatomical errors by half as compared with the simultaneous nonweighted S-TPS-RPM registration of the bladder and tumor structures. The weighted algorithm reduced the RDE range of lipiodol markers from 0.9-14 mm after rigid bone match to 0.9-4.0 mm, compared to a range of 1.1-9.1 mm with S-TPS-RPM of bladder alone and 0.9-9.4 mm for simultaneous nonweighted registration. All registration methods resulted in good geometric accuracy on the bladder; average error values were all below 1.2 mm. Conclusions: The weighted S-TPS-RPM registration algorithm with additional weight parameter allowed indirect control over structure-specific flexibility in multistructure registrations of bladder and bladder tumor, enabling anatomically coherent registrations. The availability of an anatomically validated deformable registration method opens up the horizon for improvements in IGART for bladder cancer.

Wognum, S.; Chai, X.; Hulshof, M. C. C. M.; Bel, A. [Department of Radiotherapy, Academic Medical Center, Meiberdreef 9, 1105 AZ Amsterdam (Netherlands); Bondar, L.; Zolnay, A. G.; Hoogeman, M. S. [Department of Radiation Oncology, Daniel den Hoed Cancer Center, Erasmus Medical Center, Groene Hilledijk 301, 3075 EA Rotterdam (Netherlands)

2013-02-15T23:59:59.000Z

247

The navigation of mobile robots in non-stationary and non-structured environments  

Science Journals Connector (OSTI)

The paper presents the navigation of mobile walking robot systems for movement in non-stationary and non-structured environments. In the first approach are presented main elements for the successful completion of intelligent navigation. The wireless sensor networks (WSN), dynamical stability control, strategies for dynamical control and a Bayesian approach of simultaneous localisation and mapping (SLAM) for avoiding obstacles and dynamical stability control for motion on rough terrain are studied. By processing inertial information of force, torque, tilting and wireless sensor networks (WSN) an intelligent high level algorithm is implementing using the virtual projection method. New capabilities to improve the walking robot stability are developed through the real-time balance motion control. The dynamic robot walking is presented in correlation with a stochastic model of assessing system probability of unidirectional or bidirectional transition states, applying the non-homogeneous/non-stationary Markov chains. The results show that the proposed new navigation strategy of the mobile robot using Bayesian approach walking robot control systems for going around obstacles has increased the robot's mobility and stability in workspace.

Victor Vladareanu; Gabriela Tont; Luige Vladareanu; Florentin Smarandache

2013-01-01T23:59:59.000Z

248

Towards Mobile Microrobot Swarms for Additive Micromanufacturing  

E-Print Network [OSTI]

of independently controlled microrobots in advanced, additive manufacturing applications. Keywords Mobile Microrobotics, Multi-robot Control, Additive Manufacturing 1. Introduction Flexible manufacturing capabilities, and additive manufacturing has proven to be a disruptive technology at the small- to medium-scale. Many

Zavlanos, Michael

249

Rendering of Environmental Force Feedback in Mobile Robot Teleoperation based on Fuzzy Logic  

E-Print Network [OSTI]

. Remote control of mobile robot with force reflection and fuzzy logic based velocity control was presentedRendering of Environmental Force Feedback in Mobile Robot Teleoperation based on Fuzzy Logic Ildar force feedback in mobile robot teleoperation based on fuzzy logic is presented. To ensure safety

Ryu, Jee-Hwan

250

Improvements in dose accuracy delivered with static-MLC IMRT on an integrated linear accelerator control system  

SciTech Connect (OSTI)

Purpose: Dose accuracy has been shown to vary with dose per segment and dose rate when delivered with static multileaf collimator (SMLC) intensity modulated radiation therapy (IMRT) by Varian C-series MLC controllers. The authors investigated the impact of monitor units (MUs) per segment and dose rate on the dose delivery accuracy of SMLC-IMRT fields on a Varian TrueBeam linear accelerator (LINAC), which delivers dose and manages motion of all components using a single integrated controller. Methods: An SMLC sequence was created consisting of ten identical 10 x 10 cm{sup 2} segments with identical MUs. Beam holding between segments was achieved by moving one out-of-field MLC leaf pair. Measurements were repeated for various combinations of MU/segment ranging from 1 to 40 and dose rates of 100-600 MU/min for a 6 MV photon beam (6X) and dose rates of 800-2400 MU/min for a 10 MV flattening-filter free photon (10XFFF) beam. All measurements were made with a Farmer (0.6 cm{sup 3}) ionization chamber placed at the isocenter in a solid-water phantom at 10 cm depth. The measurements were performed on two Varian LINACs: C-series Trilogy and TrueBeam. Each sequence was delivered three times and the dose readings for the corresponding segments were averaged. The effects of MU/segment, dose rate, and LINAC type on the relative dose variation ({Delta}{sub i}) were compared using F-tests ({alpha} = 0.05). Results: On the Trilogy, large {Delta}{sub i} was observed in small MU segments: at 1 MU/segment, the maximum {Delta}{sub i} was 10.1% and 57.9% at 100 MU/min and 600 MU/min, respectively. Also, the first segment of each sequence consistently overshot ({Delta}{sub i} > 0), while the last segment consistently undershot ({Delta}{sub i} < 0). On the TrueBeam, at 1 MU/segment, {Delta}{sub i} ranged from 3.0% to 4.5% at 100 and 600 MU/min; no obvious overshoot/undershoot trend was observed. F-tests showed statistically significant difference [(1 - {beta}) =1.0000] between the Trilogy and the TrueBeam up to 10 MU/segment, at all dose rates greater than 100 MU/min. The linear trend of decreasing dose accuracy as a function of increasing dose rate on the Trilogy is no longer apparent on TrueBeam, even for dose rates as high as 2400 MU/min. Dose inaccuracy averaged over all ten segments in each beam delivery sequence was larger for Trilogy than TrueBeam, with the largest discrepancy (0.2% vs 3%) occurring for 1 MU/segment beams at both 300 and 600 MU/min. Conclusions: Earlier generations of Varian LINACs exhibited large dose variations for small MU segments in SMLC-IMRT delivery. Our results confirmed these findings. The dose delivery accuracy for SMLC-IMRT is significantly improved on TrueBeam compared to Trilogy for every combination of low MU/segment (1-10) and high dose rate (200-600 MU/min), in part due to the faster sampling rate (100 vs 20 Hz) and enhanced electronic integration of the MLC controller with the LINAC. SMLC-IMRT can be implemented on TrueBeam with higher dose accuracy per beam ({+-}0.2% vs {+-}3%) than previous generations of Varian C-series LINACs for 1 MU/segment delivered at 600 MU/min).

Li Ji; Wiersma, Rodney D.; Stepaniak, Christopher J.; Farrey, Karl J.; Al-Hallaq, Hania A. [Department of Radiation and Cellular Oncology, University of Chicago, 5758 South Maryland Avenue, MC9006, Chicago, Illinois 60637 (United States)

2012-05-15T23:59:59.000Z

251

Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings- Control strategies to improve hydronic space heating performance  

Broader source: Energy.gov [DOE]

This webinar was presented on July 16, 2014, and provided information about improving the performance of central space conditioning systems in multifamily buildings.

252

Ad Hoc Mobile Networking and General Mobility Issues Ramon Lawrence  

E-Print Network [OSTI]

Ad Hoc Mobile Networking and General Mobility Issues Ramon Lawrence Department of Computer Science of networking and mobility come many interesting opportunities and difficult problems. Mobile computing allows around in the environment. Unfortunately, to support this mobility places several restrictive restraints

Lawrence, Ramon

253

Characterization of side-slip dynamics in Land Rover LR3 for improved high speed autonomous control  

E-Print Network [OSTI]

In this thesis, the side slip control dynamics of the Land Rover LR3 platform are examined for autonomous control. As autonomy becomes implemented in high speed safety applications, the importance of an accurate model for ...

Truax, Robert D. (Robert Denison)

2008-01-01T23:59:59.000Z

254

Mobile worksystems for decontamination and decommissioning operations. Final report  

SciTech Connect (OSTI)

This project is an interdisciplinary effort to develop effective mobile worksystems for decontamination and decommissioning (D&D) of facilities within the DOE Nuclear Weapons Complex. These mobile worksystems will be configured to operate within the environmental and logistical constraints of such facilities and to perform a number of work tasks. Our program is designed to produce a mobile worksystem with capabilities and features that are matched to the particular needs of D&D work by evolving the design through a series of technological developments, performance tests and evaluations. The Phase I effort was based on a robot called the Remote Work Vehicle (RWV) that was previously developed by CMU for use in D&D operations at the Three Mile Island Unit 2 Reactor Building basement. During Phase I of this program, the RWV was rehabilitated and upgraded with contemporary control and user interface technologies and used as a testbed for remote D&D operations. We established a close working relationship with the DOE Robotics Technology Development Program (RTDP). In the second phase, we designed and developed a next generation mobile worksystem, called Rosie, and a semi-automatic task space scene analysis system, called Artisan, using guidance from RTDP. Both systems are designed to work with and complement other RTDP D&D technologies to execute selective equipment removal scenarios in which some part of an apparatus is extricated while minimally disturbing the surrounding objects. RTDP has identified selective equipment removal as a timely D&D mission, one that is particularly relevant during the de-activation and de-inventory stages of facility transitioning as a means to reduce the costs and risks associated with subsequent surveillance and monitoring. In the third phase, we tested and demonstrated core capabilities of Rosie and Artisan; we also implemented modifications and enhancements that improve their relevance to DOE`s facility transitioning mission.

NONE

1997-02-01T23:59:59.000Z

255

Performance analysis of distributed time division multiple access protocols in mobile ad hoc environments  

E-Print Network [OSTI]

Tactical wireless mobile ad hoc networks rely upon distributed medium access control (MAC) protocols for coordination and assignment of channel resources among dispersed and mobile users. One such protocol is the distributed ...

Dastangoo, Siamak

256

Operator Standpoint-Based Remote Operation System Considering the Operational Convenience for a Mobile Robot  

Science Journals Connector (OSTI)

The remotely operated mobile robot is usually controlled in the viewpoint of the mobile robot using the conventional remote operation system. However, it is a little hard ... , we propose the operator standpoint-...

Chang-Seop Shin; Gon-Woo Kim

2013-01-01T23:59:59.000Z

257

Mobile media search  

Science Journals Connector (OSTI)

This panel paper presents motivations for discussing mobile media search and contains statements from the panelists who are industry research leaders in this field.

Berna Erol; Jordan Cohen; Minoru Etoh; Hsiao-Wuen Hon; Jiebo Luo; Johan Schalkwyk

2009-04-01T23:59:59.000Z

258

ARM Mobile Facilities  

ScienceCinema (OSTI)

This video provides an overview of the ARM Mobile Facilities, two portable climate laboratories that can deploy anywhere in the world for campaigns of at least six months.

Orr, Brad; Coulter, Rich

2014-09-15T23:59:59.000Z

259

AMF ARM Mobile FAcility  

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

AMF ARM Mobile FAcility Details on the AMF proposal process can be found at http:www.arm.govacrfsubmitproposals.stm. For more information, contact: Mark Miller Mary Jane...

260

ARM Mobile Facilities  

SciTech Connect (OSTI)

This video provides an overview of the ARM Mobile Facilities, two portable climate laboratories that can deploy anywhere in the world for campaigns of at least six months.

Orr, Brad; Coulter, Rich

2010-12-13T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile Ice Nucleus Spectrometer  

SciTech Connect (OSTI)

This first year report presents results from a computational fluid dynamics (CFD) study to assess the flow and temperature profiles within the mobile ice nucleus spectrometer.

Kulkarni, Gourihar R.; Kok, G. L.

2012-05-07T23:59:59.000Z

262

Highly parallelized control programming methodologies using multicore CPU and FPGA for highly dynamic multi-DoF mobile robots, applied to the MIT Cheetah  

E-Print Network [OSTI]

This thesis presents highly parallelized control programming methodologies developed for multi-degrees of freedom (DoF) robots capable of highly dynamic movements. In robotic applications that require rapid physical ...

Seok, Sangok

2014-01-01T23:59:59.000Z

263

ExxonMobil | Open Energy Information  

Open Energy Info (EERE)

ExxonMobil ExxonMobil Jump to: navigation, search Logo: ExxonMobil Name ExxonMobil Address 5959 Las Colinas Boulevard Place Irving, Texas Zip 75039 Product Refiner and marketer of petroleum products Stock Symbol XOM Phone number (972) 444-1000 Website http://www.exxonmobil.com/Corp Coordinates 32.890885°, -96.947458° 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":32.890885,"lon":-96.947458,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

264

BUILDING MOBILE EXPERIENCES Frank Bentley  

E-Print Network [OSTI]

BUILDING MOBILE EXPERIENCES Frank Bentley Principal Staff Research Scientist Motorola Mobility of teaching mobile apps class at MIT ! Strong believer in user-inspired innovation ! Have brought several new? ! Investigating the interaction between people and mobile computing devices ! Creating compelling mobile

Glinz, Martin

265

Consumers' attitudes towards and intention to participate in mobile marketing  

Science Journals Connector (OSTI)

The study investigates factors that affect consumer attitudes towards mobile marketing by developing a conceptual model that is tested with a sample of 4,062 consumers. The results show that context, credibility and subjective norm are positively related to intention to participate in mobile marketing whereas perceived behavioral control and financial rewards were not associated with intention. The results give insights into consumer perceptions of mobile marketing and open several avenues for further research in this emerging topic.

Heikki Karjaluoto; Terhi Alatalo

2007-01-01T23:59:59.000Z

266

Robotic vehicle with multiple tracked mobility platforms  

DOE Patents [OSTI]

A robotic vehicle having two or more tracked mobility platforms that are mechanically linked together with a two-dimensional coupling, thereby forming a composite vehicle of increased mobility. The robotic vehicle is operative in hazardous environments and can be capable of semi-submersible operation. The robotic vehicle is capable of remote controlled operation via radio frequency and/or fiber optic communication link to a remote operator control unit. The tracks have a plurality of track-edge scallop cut-outs that allow the tracks to easily grab onto and roll across railroad tracks, especially when crossing the railroad tracks at an oblique angle.

Salton, Jonathan R. (Albuquerque, NM); Buttz, James H. (Albuquerque, NM); Garretson, Justin (Albuquerque, NM); Hayward, David R. (Wetmore, CO); Hobart, Clinton G. (Albuquerque, NM); Deuel, Jr., Jamieson K. (Albuquerque, NM)

2012-07-24T23:59:59.000Z

267

Reservoir simulation improves implementation of Midway Sunset steamflood  

SciTech Connect (OSTI)

Thermal reservoir simulation was utilized to understand, make development recommendations, and project the performance of the Monarch C steamflood in a portion of Mobil`s South Midway Sunset field. The Monarch, a thick sequence of complex turbidite deposition, is characterized by extreme geological heterogeneity (lithofacies-controlled permeability and saturation variation, and mudstone barrier layers). Steamflood performance in the Monarch is related directly to the reservoir quality, and the path of steam flow is significantly influenced by the numerous laterally extensive mudstone barriers. The fine grain clay-bearing sediments were deposited on the anticline, distal from the source, whereas the coarser grain sediments, with little clay, were deposited on the more proximal syncline and steep dip areas. Consequently, steamflood performance improves relative to the crest since reservoir quality improves (including oil saturation), clay content decreases, and structure (dip) becomes more pronounced.

Ellison, T.K.; Clayton, C.A.

1995-12-31T23:59:59.000Z

268

Adaptive sampling and forecasting with mobile sensor networks  

E-Print Network [OSTI]

This thesis addresses planning of mobile sensor networks to extract the best information possible out of the environment to improve the (ensemble) forecast at some verification region in the future. To define the information ...

Choi, Han-Lim

2009-01-01T23:59:59.000Z

269

NetInf Mobile Node Architecture and Mobility Management based on LISP Mobile Node  

E-Print Network [OSTI]

NetInf Mobile Node Architecture and Mobility Management based on LISP Mobile Node Muhammad Shoaib an architecture for Network of Information mobile node (NetInf MN). It bears characteristics and features of basic a virtual node layer for mobility management in the Network of Information. Therefore, by adopting

Paris-Sud XI, Université de

270

Jebeile. The Mobile Subject Assistant THE MOBILE SUBJECT ASSISTANT: A MOBILE COURSE TOOL  

E-Print Network [OSTI]

Jebeile. The Mobile Subject Assistant THE MOBILE SUBJECT ASSISTANT: A MOBILE COURSE TOOL of Wollongong ABSTRACT: The rapid adoption rate of mobile phones coupled with advancements in supporting technologies suggests mobile phones may now be a viable tool for classroom use. In this paper we introduce

Rubinstein, Benjamin

271

Sharing is Caring: A Data Exchange Framework for Colocated Mobile Apps.  

E-Print Network [OSTI]

??Mobile apps have improved human lifestyle in various aspects ranging from instant messaging to tele-health. In the current app development paradigm, apps are being developed… (more)

Milazzo, Joseph

2014-01-01T23:59:59.000Z

272

"Mobile money" services permit  

E-Print Network [OSTI]

"Mobile money" services permit cell phone users to send small amounts of money via text message to their friends and relatives. There are over 90 mobile money services in the world today, mainly in emergingTure oF Money october 2012 - April 2013 Muriel Ansley reynolds exhibit GAllery For the full exhibit checklist

Loudon, Catherine

273

Mobility for Offshore Drilling  

Science Journals Connector (OSTI)

Mobility for Offshore Drilling ... New type unit designed by Humble Oil to operate in Gulf of Mexico in 30 to 70 feet deep water ... HUMBLE OIL & REFINING is inviting bids on construction of a new type of mobile drilling platform to be used in offshore operations. ...

1956-03-26T23:59:59.000Z

274

NISTIR 7617 Mobile Forensic  

E-Print Network [OSTI]

NISTIR 7617 Mobile Forensic Reference Materials: AMethodologyandReification WayneJansen AurélienDelaitre i #12;Mobile Forensic Reference Materials: A Methodology and Reification Wayne Jansen Aurélien of forensic tools. It describes an application and data set developed to populate identity modules

275

Atmospheric process evaluation of mobile source emissions  

SciTech Connect (OSTI)

During the past two decades there has been a considerable effort in the US to develop and introduce an alternative to the use of gasoline and conventional diesel fuel for transportation. The primary motives for this effort have been twofold: energy security and improvement in air quality, most notably ozone, or smog. The anticipated improvement in air quality is associated with a decrease in the atmospheric reactivity, and sometimes a decrease in the mass emission rate, of the organic gas and NO{sub x} emissions from alternative fuels when compared to conventional transportation fuels. Quantification of these air quality impacts is a prerequisite to decisions on adopting alternative fuels. The purpose of this report is to present a critical review of the procedures and data base used to assess the impact on ambient air quality of mobile source emissions from alternative and conventional transportation fuels and to make recommendations as to how this process can be improved. Alternative transportation fuels are defined as methanol, ethanol, CNG, LPG, and reformulated gasoline. Most of the discussion centers on light-duty AFVs operating on these fuels. Other advanced transportation technologies and fuels such as hydrogen, electric vehicles, and fuel cells, will not be discussed. However, the issues raised herein can also be applied to these technologies and other classes of vehicles, such as heavy-duty diesels (HDDs). An evaluation of the overall impact of AFVs on society requires consideration of a number of complex issues. It involves the development of new vehicle technology associated with engines, fuel systems, and emission control technology; the implementation of the necessary fuel infrastructure; and an appropriate understanding of the economic, health, safety, and environmental impacts associated with the use of these fuels. This report addresses the steps necessary to properly evaluate the impact of AFVs on ozone air quality.

NONE

1995-07-01T23:59:59.000Z

276

Introduction to Mobile Information Retrieval  

Science Journals Connector (OSTI)

The new frontier of mobile information retrieval will combine context awareness and content adaptation. Keywords: mobile information retrieval, context awareness, content adaptation, mobile search, location-based search, user profiling, user personalization

Flora S. Tsai; Minoru Etoh; Xing Xie; Wang-Chien Lee; Qiang Yang

2010-01-01T23:59:59.000Z

277

Enhancing mobile browsing and reading  

E-Print Network [OSTI]

Although the web browser has become a standard interface for information access on the Web, the mobile web browser on the smartphone does not hold the same interest to mobile users. A survey with 11 mobile users shows that ...

Yu, Chen-Hsiang

278

Mobile Malware Propagation and Defense  

E-Print Network [OSTI]

5.2 Scanner errors in mobile data . . . . . . . . 5.2.113th ACM International Conference on Mobile Computing andGao. An Epidemic Model of Mobile Phone Virus. In Proceedings

Zyba, Gjergji

279

Smart Cruise Control.pub  

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

Cruise Control: An ITS Application for Improved Cruise Control: An ITS Application for Improved Fuel Economy, Safety, and Traffic Congestion 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's (DOT's) IntelliDrive Program promises significant advances in safety, mobility and the environment. Some of the greatest challenges in transportation today are associated with reducing fuel consumption and vehicle emissions, improving safety on the roadway, and in increasing the efficiency of use of the highway infrastructure, which is becoming

280

Mobile streaming media CDN enabled by dynamic SMIL  

Science Journals Connector (OSTI)

In this paper, we present a mobile streaming media CDN (Content Delivery Network) architecture in which content segmentation, request routing, pre-fetch scheduling, and session handoff are controlled by SMIL (Synchronized Multimedia Integrated Language) ... Keywords: CDN, SMIL, mobile network, streaming media

Takeshi Yoshimura; Yoshifumi Yonemoto; Tomoyuki Ohya; Minoru Etoh; Susie Wee

2002-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile healthcare application with EMR interoperability for diabetes patients  

Science Journals Connector (OSTI)

With digitalization of medical information and rapid distribution of smart devices, currently, healthcare service is actively planned and developed based on smart devices. By 2015, 500 million smartphone users are expected to use a mobile health application, ... Keywords: Control, Diabetes mellitus, Healthcare, Medical information, Mobile health, Prevention, Smart device

Eun-Young Jung, Jonghun Kim, Kyung-Yong Chung, Dong Kyun Park

2014-09-01T23:59:59.000Z

282

March 29, 2007 Mobile Source Air Toxics Analysis  

E-Print Network [OSTI]

, 6 were identified as significant contributors to national emissions of hazardous air pollutants EPA Mobile Source Air Toxics Rules March 2001 rule relied on existing control programs (Tier 2March 29, 2007 Mobile Source Air Toxics Analysis for FHWA Projects Jeff Houk FHWA Resource Center

Minnesota, University of

283

Does context matter in quality evaluation of mobile television?  

Science Journals Connector (OSTI)

Subjective quality evaluation is used to optimize the produced audiovisual quality from fundamental signal processing algorithms to consumer services. These studies typically follow the basic principles of controlled psychoperceptual experiments. However, ... Keywords: context, ecological validity, evaluation, mobile TV, mobile television, subjective quality, transmission quality

Satu Jumisko-Pyykkö; Miska M. Hannuksela

2008-09-01T23:59:59.000Z

284

An improved efficiency of fuzzy sliding mode control of permanent magnet synchronous motor for wind turbine generator pumping system  

Science Journals Connector (OSTI)

This paper presents an analysis by which the dynamic performances of a permanent magnet synchronous motor (PMSM) motor is controlled through a hysteresis current loop and an outer speed loop with different contro...

F. Benchabane; A. Titaouine; O. Bennis; A. Guettaf; K. Yahia…

2012-04-01T23:59:59.000Z

285

Mobile autonomous robotic apparatus for radiologic characterization  

DOE Patents [OSTI]

A mobile robotic system that conducts radiological surveys to map alpha, beta, and gamma radiation on surfaces in relatively level open areas or areas containing obstacles such as stored containers or hallways, equipment, walls and support columns. The invention incorporates improved radiation monitoring methods using multiple scintillation detectors, the use of laser scanners for maneuvering in open areas, ultrasound pulse generators and receptors for collision avoidance in limited space areas or hallways, methods to trigger visible alarms when radiation is detected, and methods to transmit location data for real-time reporting and mapping of radiation locations on computer monitors at a host station. A multitude of high performance scintillation detectors detect radiation while the on-board system controls the direction and speed of the robot due to pre-programmed paths. The operators may revise the preselected movements of the robotic system by ethernet communications to remonitor areas of radiation or to avoid walls, columns, equipment, or containers. The robotic system is capable of floor survey speeds of from 1/2-inch per second up to about 30 inches per second, while the on-board processor collects, stores, and transmits information for real-time mapping of radiation intensity and the locations of the radiation for real-time display on computer monitors at a central command console.

Dudar, Aed M. (Dearborn, MI); Ward, Clyde R. (Aiken, SC); Jones, Joel D. (Aiken, SC); Mallet, William R. (Cowichan Bay, CA); Harpring, Larry J. (North Augusta, SC); Collins, Montenius X. (Blackville, SC); Anderson, Erin K. (Pleasanton, CA)

1999-01-01T23:59:59.000Z

286

Mobile autonomous robotic apparatus for radiologic characterization  

DOE Patents [OSTI]

A mobile robotic system is described that conducts radiological surveys to map alpha, beta, and gamma radiation on surfaces in relatively level open areas or areas containing obstacles such as stored containers or hallways, equipment, walls and support columns. The invention incorporates improved radiation monitoring methods using multiple scintillation detectors, the use of laser scanners for maneuvering in open areas, ultrasound pulse generators and receptors for collision avoidance in limited space areas or hallways, methods to trigger visible alarms when radiation is detected, and methods to transmit location data for real-time reporting and mapping of radiation locations on computer monitors at a host station. A multitude of high performance scintillation detectors detect radiation while the on-board system controls the direction and speed of the robot due to pre-programmed paths. The operators may revise the preselected movements of the robotic system by ethernet communications to remonitor areas of radiation or to avoid walls, columns, equipment, or containers. The robotic system is capable of floor survey speeds of from 1/2-inch per second up to about 30 inches per second, while the on-board processor collects, stores, and transmits information for real-time mapping of radiation intensity and the locations of the radiation for real-time display on computer monitors at a central command console. 4 figs.

Dudar, A.M.; Ward, C.R.; Jones, J.D.; Mallet, W.R.; Harpring, L.J.; Collins, M.X.; Anderson, E.K.

1999-08-10T23:59:59.000Z

287

Mobile Learning Initiative (MLI) Spring 2012 Mobile Learning Campus Climate  

E-Print Network [OSTI]

Page | 1 Mobile Learning Initiative (MLI) Spring 2012 Mobile Learning Campus Climate Assessment.............................................................................................................................. 30 A. Demographics of 2012 Faculty Mobile Computing Survey Respondents B. Demographics of 2011 and 2012 Student Mobile Computing Survey Respondents C. Example Faculty Comments from Open-Ended Feedback D

Barrash, Warren

288

MASS POLITICAL MOBILIZATION  

E-Print Network [OSTI]

................................................................................................................................................... MASS POLITICAL MOBILIZATION ................................................................................................................................................... Boix & Stokes: The Oxford Handbook of Comparative Politics Boixandstokes-chap21 Revise Proof page 497 20.4.2007 12:41pm #12;Boix & Stokes: The Oxford Handbook of Comparative Politics Boixandstokes-chap21

289

Mobile Communications May 30, 2013  

E-Print Network [OSTI]

Mobile Communications Program May 30, 2013 #12;Overview Background Financial Aspects Operational plans include mobile-mobile, nights & weekends Smartphones ­ 400 minute plan, includes unlimited data.98/month Unlimited text messaging can be added for $12/month Unlimited data for mobile broadband card

290

EERE: Clean Cities Mobile Sites  

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

Clean Cities Mobile Sites Alternative Fueling Station Locator FuelEconomy.gov Truck Stop Electrification Locator...

291

Deployment algorithms and indoor experimental vehicles for studying mobile wireless sensor networks  

Science Journals Connector (OSTI)

Wireless communication has been traditionally used in robotics to transmit sensory and telemetry information between a robot and a base station. Because research in mobile robotics has typically focused on navigation, mapping and sensor fusion, network ... Keywords: adaptive sampling, discrete event controllers, mobile WSNs, mobile robots, potential fields, robot navigation, robotic deployment, wireless networks, wireless sensor networks

Dan O. Popa; Muhammad F. Mysorewala; Frank L. Lewis

2009-08-01T23:59:59.000Z

292

Vision-Based Convoy Forming for Mobile Robots  

Science Journals Connector (OSTI)

An approach is proposed to form a convoy of vehicles autonomously following a given path. Particularly, the part of the complex mobile robot guidance system related to leader-follower control ... is to use the lo...

Damian Kowalów; Maciej Patan

2014-01-01T23:59:59.000Z

293

A Fuzzy-Based Strategy to Improve Control Reconfiguration Performance of a Sensor Fault-Tolerant Induction Motor Propulsion  

E-Print Network [OSTI]

recovery in the Electric (EV) or Hybrid Electric Vehicle (HEV) induction motor drive. To achieve this goal-ref · Fault Tolerant Controller HybridHybrid ElectricElectric VehicleVehicle Induction Motor Sensorless Fuzzy-Tolerant Induction Motor Propulsion Bekheira Tabbache1,2 , Mohamed Benbouzid1 , Abdelaziz Kheloui2 and Jean

Paris-Sud XI, Université de

294

Support Mobile and Distributed Applications with Named Data Networking  

E-Print Network [OSTI]

Mobile IP and itsproblem . . . . . . . . . . . . . . . . . . .Mobile IP: anSupport of mobile data consumers . . . . . . . . . . . . . .

Zhu, Zhenkai

2013-01-01T23:59:59.000Z

295

Acoustic repair: Recent experience with the acoustic control system (ACS) for improving acoustic conditions in two existing venues  

Science Journals Connector (OSTI)

Active acoustics systems are becoming more prevalent in architectural acoustics practice particularly in the context of repairing or improving acoustics in existing venues. Governmental policies to reduce funds and subsidies put into new facilities for the performing arts are another reason for designers to consider the use of active acoustics. This paper highlights two recent examples of such installations of ACS systems one at the Sydney Opera House Concert Hall and the other at MBCCH Winnepeg Canada. Collaboration between the system designer the musicians and the acoustics consultant will be emphasized along with techniques used to evaluate the systems' performance in the halls.

Timothy E. Gulsrud; Arthur van Maurik

2011-01-01T23:59:59.000Z

296

Improvement of efficiency and temperature control of induction heating vapor source on electron cyclotron resonance ion source  

SciTech Connect (OSTI)

An electron cyclotron resonance ion source (ECRIS) is used to generate multicharged ions for many kinds of the fields. We have developed an evaporator by using induction heating method that can generate pure vapor from solid state materials in ECRIS. We develop the new matching and protecting circuit by which we can precisely control the temperature of the induction heating evaporator. We can control the temperature within {+-}15 deg. C around 1400 deg. C under the operation pressure about 10{sup -4} Pa. We are able to use this evaporator for experiment of synthesizing process to need pure vapor under enough low pressure, e.g., experiment of generation of endohedral Fe-fullerene at the ECRIS.

Takenaka, T.; Kiriyama, R.; Kurisu, Y.; Nozaki, D.; Yano, K.; Sato, F.; Kato, Y.; Iida, T. [Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University 2-1 Yamada-oka, Suita-shi, Osaka 565-0871 (Japan); Muramatsu, M.; Kitagawa, A. [National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555 (Japan); Uchida, T.; Yoshida, Y. [Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585 (Japan)

2012-02-15T23:59:59.000Z

297

An intelligent neuro-fuzzy logic controller for induction generator based wind generation to improve power system stability  

Science Journals Connector (OSTI)

Power systems are non-linear and they are often subjected to random disturbances. This paper deals with the application of the intelligent neuro-fuzzy technique to the design of the robust power system stabiliser for power system oscillation damping enhancement in a wind turbine based power system network. The stabilising signal is computed in real time using suitable fuzzy membership functions depending upon the state of the generator on the speed-acceleration phase plane. These input signals are first characterised by a set of linguistic variables using fuzzy set notations. The fuzzy relation matrix, which gives the relationship between stabiliser inputs and stabiliser output, allows a set of fuzzy logic operations that are performed on stabiliser inputs to obtain the desired stabiliser output. The performance of the proposed controller is analysed in a single induction machine-infinite bus power system data subjected to various dynamic and transient disturbances. The proposed intelligent neuro-fuzzy control scheme exhibits a superior damping performance in comparison to the conventional controllers. Its simple architecture reduces the computational burden, thereby making it attractive for real-time implementation.

N. Albert Singh; K.A. Muraleedharan; K. Gomathy

2009-01-01T23:59:59.000Z

298

International Atomic Energy Agency specialists meeting on experience in ageing, maintenance, and modernization of instrumentation and control systems for improving nuclear power plant availability  

SciTech Connect (OSTI)

This report presents the proceedings of the Specialist`s Meeting on Experience in Aging, Maintenance and Modernization of Instrumentation and Control Systems for Improving Nuclear Power Plant Availability that was held at the Ramada Inn in Rockville, Maryland on May 5--7, 1993. The Meeting was presented in cooperation with the Electric Power Research Institute, Oak Ridge National Laboratory and the International Atomic Energy Agency. There were approximately 65 participants from 13 countries at the Meeting. Individual reports have been cataloged separately.

Not Available

1993-10-01T23:59:59.000Z

299

Mobile systems capability plan  

SciTech Connect (OSTI)

This plan was prepared to initiate contracting for and deployment of these mobile system services. 102,000 cubic meters of retrievable, contact-handled TRU waste are stored at many sites around the country. Also, an estimated 38,000 cubic meters of TRU waste will be generated in the course of waste inventory workoff and continuing DOE operations. All the defense TRU waste is destined for disposal in WIPP near Carlsbad NM. To ship TRU waste there, sites must first certify that the waste meets WIPP waste acceptance criteria. The waste must be characterized, and if not acceptable, subjected to additional processing, including repackaging. Most sites plan to use existing fixed facilities or open new ones between FY1997-2006 to perform these functions; small-quantity sites lack this capability. An alternative to fixed facilities is the use of mobile systems mounted in trailers or skids, and transported to sites. Mobile systems will be used for all characterization and certification at small sites; large sites can also use them. The Carlsbad Area Office plans to pursue a strategy of privatization of mobile system services, since this offers a number of advantages. To indicate the possible magnitude of the costs of deploying mobile systems, preliminary estimates of equipment, maintenance, and operating costs over a 10-year period were prepared and options for purchase, lease, and privatization through fixed-price contracts considered.

NONE

1996-09-01T23:59:59.000Z

300

Power Save Adaptation Algorithm for Multimedia Streaming to Mobile Devices  

E-Print Network [OSTI]

the exponential techno- logical improvements of other mobile device related hardware, such as CPU, memory concentrated on various pieces of hardware and software and has, to a large extent, neglected power fifty years [2]. Therefore, there is a need to improve battery life span in order to keep up

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile Robot Sensing for Environmental Applications  

E-Print Network [OSTI]

infomechanical systems: A mobile wireless sensor networkMobile robot sensing for environmental applications Amarjeetsystems per- formed using mobile robot sensing systems. Both

2007-01-01T23:59:59.000Z

302

Mobile Persuasive Technologies for Rural Health  

E-Print Network [OSTI]

3.5.1 The Case for Mobile Phones . . . . . . . . . . . . . .ICTs 5 Mobile Persuasive Messages for Rural Health Promotionvideos. . . ASHAs using mobile phones. . . . . . . . Health

Ramachandran, Divya Lalitha

2010-01-01T23:59:59.000Z

303

1 - Mobile Robots: General Concepts  

Science Journals Connector (OSTI)

This chapter presents the fundamental general concepts of mobile robots that can move from one place to another autonomously within a predefined workspace to achieve their desired goals. Specifically, the chapter (i) provides a list of the main historical landmarks of general robotics and mobile robots, (ii) discusses the locomotion issues of ground (wheeled, legged) mobile robots, (iii) investigates the wheel and drive types of mobile robots (nonholonomic, omnidirectional) and, (iv) introduces the concepts of mobile robot degree of mobility, degree of steerability, and maneuverability.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

304

RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstration: Hawaii and Guam Energy Improvement Technology Demonstration Project  

SciTech Connect (OSTI)

As part of its overall strategy to meet its energy goals, the Naval Facilities Engineering Command (NAVFAC) partnered with U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to rapidly demonstrate and deploy cost-effective renewable energy and energy efficiency technologies. This was one of several demonstrations of new and underutilized commercial energy efficiency technologies. The consistent year-round demand for air conditioning and dehumidification in Hawaii provides an advantageous demonstration location for advanced rooftop control (ARC) retrofit kits to packaged rooftop units (RTUs). This report summarizes the field demonstration of ARCs installed on nine RTUs serving a 70,000-ft2 exchange store (large retail) and two RTUs, each serving small office buildings located on Joint Base Pearl Harbor-Hickam (JBPHH).

Doebber, I.; Dean, J.; Dominick, J.; Holland, G.

2014-03-01T23:59:59.000Z

305

An electromagnetic perpetuum mobile?  

E-Print Network [OSTI]

A charge moving freely in orbit around the Earth radiates according to Larmor's formula. If the path is closed, it would constitute a perpetuum mobile. The solution to this energy paradox is found in an article by C. M. DeWitt and B. DeWitt from 1964. The main point is that the equation of motion of a radiating charge is modified in curved spacetime. In the present article we explain the physics behind this modification, and use the generalized equation to solve the perpetuum mobile paradox.

Øyvind Grøn; Sigurd Kirkevold Næss

2008-06-03T23:59:59.000Z

306

E-Print Network 3.0 - accelerator control middle Sample Search...  

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

Accelerator Test Facility Collection: Physics 18 From paths to trajectories for multibody mobile robots Summary: in the classical chain of motion planning and control for mobile...

307

Effects of microstructural control on the failure kinetics and the reliability improvement of Al and Al-alloy interconnects  

SciTech Connect (OSTI)

The reliability of microelectronic systems is often limited by electromigration failure in Al-based thin-film conducting lines which interconnect devices to form an integrated circuit. Under an applied electric field Al atoms migrate with the electron flow, causing a counterflow of vacancies that accumulate into voids, eventually leading to an open circuit failure. The work reported here is concerned with clarifying the microstructural mechanism of electromigration failure, and with developing a metallurgical method to improve the electromigration resistance of Al-based interconnects. Pure Al, Al-2Cu, and Al-2Cu-1Si lines with quasi-bamboo microstructures are explored as a function of heat treatment conditions and current density. The {open_quotes}weakest{close_quotes} microstructural unit that causes failure is identified by electron microscopy; with rare exceptions, failure occurs at the upstream end of the longest polygranular segment in a given line. This microstructural characteristic of electromigration failure is even observed in lines whose maximum segment lengths are less than a few microns. The time to failure appears to increase exponentially with decreasing longest polygranular segment length. A simple constitutive equation is reported to describe the failure kinetics as a function of the polygranular segment length that leads to failure. Given correct values of the kinetic constants included in the equation, this microstructure-based constitutive relation will provide a way to assess interconnect reliability. An effective metallurgical method that can eliminate relatively long polygranular segments is post-pattern annealing. This heat treatment particularly narrows the distribution of the longest polygranular segment lengths over a large set of lines. As a consequence, the time-to-failure distribution narrows as well, so that the time to first failure increases more substantially than the median time to failure.

Seung Hyuk Kang

1996-12-01T23:59:59.000Z

308

Mobility platform coupling device and method for coupling mobility platforms  

DOE Patents [OSTI]

A coupling device for connecting a first mobility platform to a second mobility platform in tandem. An example mobility platform is a robot. The coupling device has a loose link mode for normal steering conditions and a locking position, tight link mode for navigation across difficult terrain and across obstacles, for traversing chasms, and for navigating with a reduced footprint in tight steering conditions.

Shirey, David L. (Albuquerque, NM); Hayward, David R. (Albuquerque, NM); Buttz, James H. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

309

Utilization of Lignite Reserves and Simultaneous Improvement of Dust Emissions and Operation Efficiency of a Power Plant by Controlling the Calcium (Total and Free) Content of the Fed Lignite. Application on the Agios Dimitrios Power Plant, Ptolemais, Greece  

Science Journals Connector (OSTI)

Utilization of Lignite Reserves and Simultaneous Improvement of Dust Emissions and Operation Efficiency of a Power Plant by Controlling the Calcium (Total and Free) Content of the Fed Lignite. ... Using the technique mentioned above, by determining the lignite recoverable blocks and progressively improving the mixing of the lignites with different qualities, the solid particle emissions were generally stabilized and reduced (lower than 150 mg m-3), with the best improvement observed around April 1999 and afterward (Figures 2?5). ...

Nestoras Kolovos; Andreas Georgakopoulos; Anestis Filippidis; Constantinos Kavouridis

2002-09-11T23:59:59.000Z

310

Mobile lighting apparatus  

DOE Patents [OSTI]

A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

Roe, George Michael; Klebanoff, Leonard Elliott; Rea, Gerald W; Drake, Robert A; Johnson, Terry A; Wingert, Steven John; Damberger, Thomas A; Skradski, Thomas J; Radley, Christopher James; Oros, James M; Schuttinger, Paul G; Grupp, David J; Prey, Stephen Carl

2013-05-14T23:59:59.000Z

311

The use of ducts to improve the control of supply air temperature rise in UFAD systems: CFD and lab study  

Science Journals Connector (OSTI)

Abstract Cool supply air flowing through the underfloor plenum is exposed to heat gain from both the concrete slab (conducted from the warm return air on the adjacent floor below the slab) and the raised floor panels (conducted from the warmer room above). The magnitude of this heat gain can be quite high, resulting in undesirable loss of control of the supply air temperature from the plenum into the occupied space. These warmer supply air temperatures can make it more difficult to maintain comfort in the occupied space (without increasing airflow rates), particularly in perimeter zones where cooling loads reach their highest levels. How to predict plenum thermal performance is one of the key design issues facing practicing engineers – evidence from completed projects indicates that excessive temperature rise in the plenum can be a problem. One of the recommended strategies for addressing temperature rise in UFAD systems is the use of ductwork (flexible or rigid) within the underfloor plenum to deliver cool air preferentially to perimeter zones or other critical areas of high cooling demand. Several experiments were carried out in a full-scale underfloor plenum test facility, in order to characterize all the phenomena that take place in an underfloor plenum equipped with a fabric or metal duct. Experimental data were collected for validation of a computational fluid dynamics (CFD) model of the plenum. This paper describes the first part of a more comprehensive work, whose aim is to use the validated CFD plenum model to conduct simulations of a broader range of plenum design and operational parameters. This work proves that using ductwork within the underfloor plenum reduce the temperature rise in the plenum.

Wilmer Pasut; Fred Bauman; Michele De Carli

2014-01-01T23:59:59.000Z

312

Control Freaks How Online and Mobile Communication  

E-Print Network [OSTI]

Steam engines: pumping water out of mines (Thomas Newcomen and John Calley, 1712) Mainframe computers

Lansky, Joshua

313

Webinar: Fuel Cell Mobile Lighting  

Broader source: Energy.gov [DOE]

Video recording of the Fuel Cell Technologies Office webinar, Fuel Cell Mobile Lighting, originally presented on November 13, 2012.

314

MOBILE-TERMINATED DATA User's Guide  

E-Print Network [OSTI]

MOBILE-TERMINATED DATA User's Guide Iridium Satellite LLC Rev. 2; February 1, 2002 #12;MOBILE................................................................................................................................3 1.1 IRIDIUM MOBILE TERMINATED DATA CONNECTIVITY ..........................................................................................................................7 4 Mobile Terminated Call Scenarios

Ashley, Michael C. B.

315

Mobile Device Policy & Program Considerations  

E-Print Network [OSTI]

Page 1 Mobile Device Policy & Program Considerations To BYOD or not to BYOD (bring to manage the use of mobile devices within their corporate resources. Every business will naturally have different mobility requirements, and developing a policy in the first place, let alone an appropriate policy

Fisher, Kathleen

316

Mobile Recommender Systems Francesco Ricci  

E-Print Network [OSTI]

Mobile Recommender Systems Francesco Ricci Faculty of Computer Science Free University of Bolzano, Italy fricci@unibz.it January 11, 2010 Abstract Mobile phones are becoming a primary platform for information access and when coupled with recommender systems technologies they can become key tools for mobile

Ricci, Francesco

317

Mobile Computig: Conclusions Evaggelia Pitoura  

E-Print Network [OSTI]

' & $ % Mobile Computig: Conclusions Evaggelia Pitoura Computer Science Department, University; ' & $ % Mobile Computing Models ffl What is the best way to partition a computation as well as the functionality of a system or application between stationary and mobile elements? Adaptivity: the functionality assigned

Pitoura, Evaggelia

318

Cooperative efforts to improve nuclear materials accounting, control and physical protection at the National Science Center, Kharkov Institute of Physics and Technology  

SciTech Connect (OSTI)

The US Department of Energy (DOE) and the Ukrainian Government are engaged in a program of cooperation to enhance the nonproliferation of nuclear weapons by developing a strong national system of nuclear material protection, control, and accounting (MPC and A). This paper describes the capabilities and work of the Kharkov Institute of Physics and Technology (KIPT) and cooperative efforts to improve MPC and A at this facility. It describes how these cooperative efforts grew out of Ukraine`s decision to become a non-nuclear weapon state and the shortcomings in MPC and A that developed at KIPT after the disintegration of the former Soviet Union. It also envisions expanded future cooperation in other areas of nuclear materials management.

Zelensky, V.F.; Mikhailov, V.A. [Kharkov Inst. of Physics and Technology (Ukraine). National Science Center

1996-12-31T23:59:59.000Z

319

Consumer value creation in mobile banking services  

Science Journals Connector (OSTI)

The paper presents findings of the study that explored consumer value creation in various mobile banking services. New electronic channels are replacing the more traditional ones. Mobile devices represent the recent development in electronic service ... Keywords: banking services, consumer value creation, customer value creation, electronic banking, m-services, marketing strategies, mobile banking, mobile communications, mobile phones, mobile services, perceived value

Tommi Laukkanen; Jari Lauronen

2005-12-01T23:59:59.000Z

320

Mobile workstation for decontamination and decommissioning operations  

SciTech Connect (OSTI)

This project is an interdisciplinary effort to develop effective mobile worksystems for decontamination and decommissioning (D&D) of facilities within the DOE Nuclear Weapons Complex. These mobile worksystems will be configured to operate within the environmental and logistical constraints of such facilities and to perform a number of work tasks. Our program is designed to produce a mobile worksystem with capabilities and features that are matched to the particular needs of D&D work by evolving the design through a series of technological developments, performance tests and evaluations. The project has three phases. In this the first phase, an existing teleoperated worksystem, the Remote Work Vehicle (developed for use in the Three Mile Island Unit 2 Reactor Building basement), was enhanced for telerobotic performance of several D&D operations. Its ability to perform these operations was then assessed through a series of tests in a mockup facility that contained generic structures and equipment similar to those that D&D work machines will encounter in DOE facilities. Building upon the knowledge gained through those tests and evaluations, a next generation mobile worksystem, the RWV II, and a more advanced controller will be designed, integrated and tested in the second phase, which is scheduled for completion in January 1995. The third phase of the project will involve testing of the RWV II in the real DOE facility.

Whittaker, W.L.; Osborn, J.F.; Thompson, B.R. [Carnegie-Mellon Univ., Pittsburgh, PA (United States). Robotics Inst.

1993-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile Biomass Pelletizing System  

SciTech Connect (OSTI)

This grant project examines multiple aspects of the pelletizing process to determine the feasibility of pelletizing biomass using a mobile form factor system. These aspects are: the automatic adjustment of the die height in a rotary-style pellet mill, the construction of the die head to allow the use of ceramic materials for extreme wear, integrating a heat exchanger network into the entire process from drying to cooling, the use of superheated steam for adjusting the moisture content to optimum, the economics of using diesel power to operate the system; a break-even analysis of estimated fixed operating costs vs. tons per hour capacity. Initial development work has created a viable mechanical model. The overall analysis of this model suggests that pelletizing can be economically done using a mobile platform.

Thomas Mason

2009-04-16T23:59:59.000Z

322

Mobile and Ubiquitous Compu3ng RFID Basics  

E-Print Network [OSTI]

Mobile and Ubiquitous Compu3ng RFID Basics #12;· RFID principle(s) of opera3on #12;Component roles · High-frequency interface" ­ generates transmission power to activate tag" ­ modulates transmission/demodulates tag signal" · Control system" ­ control communication with tags" · anti

Roussos, George

323

Sharing DICOM Learning Objects within a mobile Peer-To-Peer podacasting environment  

Science Journals Connector (OSTI)

Mobile technology has exploded in healthcare because of its ability to improve the efficiency and accuracy of information exchange. This paper develops an innovative telemedical education system that enables peer learners to share medical multimedia ... Keywords: P2P podcasting, Web 20, collaborative networks, e-health, e-learning 20, electronic healthcare, learning objects, medical multimedia, medical tele-education, mobile communications, mobile learning, online learning, peer, peer-to-, social networking, telemedical education

J. Fiaidhi; M. Orabi; S. Mohammed

2008-04-01T23:59:59.000Z

324

15 - Mobile Robots at Work  

Science Journals Connector (OSTI)

Robots of all types constitute one of the keys to human social and economic development. In particular, the benefits of using autonomous and intelligent mobile robots in medical, assistive, and service applications are numerous, and their positive impact in modern society is steadily increasing. The purpose of the present chapter is to provide an encyclopedic tour to a small set of mobile robots of various types that are actually used in modern industry and society. Specifically, the following robot categories are discussed with relevant photos included: (i) mobile robots and manipulators in the factory and industry, (ii) mobile robots in the society (rescue, guidance, hospital), (iii) mobile robots for home services (cleaning, other services), (iv) assistive mobile robots (autonomous wheelchairs, service mobile manipulators for the impaired), (v) mobile telerobots and web robots, and (vi) other mobile robot applications (entertainment, socialized robots, etc). The above applications illustrate the importance and value of mobile robots for achieving a better quality of human life in a wide variety of directions.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

325

Utilizing RF-I and Intelligent Scheduling for Better Throughput/Watt in a Mobile GPU Memory System  

E-Print Network [OSTI]

Utilizing RF-I and Intelligent Scheduling for Better Throughput/Watt in a Mobile GPU Memory System system is essential for the mobile GPU. In this article, we propose to improve throughput/watt are able to improve throughput 17% up to 66% while increasing throughput per watt by an average of 18% up

Cong, Jason "Jingsheng"

326

A demonstration mobility experiment  

E-Print Network [OSTI]

Corporation, Albuquerque& New Nhxico& for his assl. stance and advice in the preparation of the crystslsl snd my wife, Ellen, who corrected gram&asr& typed, proofread& and offered sncouragesmnt throughout the comple- tion of this thesis, I I I 8 I w... Shockley Haynes mobil. ty experiment. Tp Fig, 2. Sketch of oscilloscope trace from asr1y version of tha Shoo'klay Hagrnes momlity experiment, drift toward the eollsotor point with e velocity~? whereMLO the h ~ ability of a boles Ths Current tlsw...

Martin, Howard Lawrence

1961-01-01T23:59:59.000Z

327

Mobile multiwave lidar complexes  

Science Journals Connector (OSTI)

Multiwave mobile lidar complexes (MLCs) are designed and developed. A number of vehicle-based MLCs are built. The set of complex lidar probing data obtained with the help of MLCs is synchronised in space and time, covers a large area (the operation range of an MLC is 15 km), and is based on a unified methodological approach. The results of probing contain information on the concentration and physical nature of atmospheric aerosol, chemical composition of the gaseous phase of the atmosphere, wind and turbulence. The obtained data form the basis for a complex analysis of the ecological situation and prognosis of its development.

A S Boreysho; M A Konyaev; A V Morozov; A V Pikulik; A V Savin; A V Trilis; S Ya Chakchir; N I Boiko; Yu N Vlasov; S P Nikitaev; A V Rozhnov

2005-01-01T23:59:59.000Z

328

Parasitic mobility for sensate media  

E-Print Network [OSTI]

Distributed sensor networks offer many new capabilities for monitoring environments with applicability to medical, industrial, military, anthropological, and experiential fields. By making such systems mobile, we increase ...

Laibowitz, Matthew Joel, 1975-

2004-01-01T23:59:59.000Z

329

IEEE TRANSACTIONS ON AUTOMATIC CONTROL 1 Coverage and Energy Consumption Control in  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON AUTOMATIC CONTROL 1 Coverage and Energy Consumption Control in Mobile Abstract--In this paper 1 , we investigate the coverage and energy consumption control in mobile. Meanwhile, we can operate a tradeoff control between coverage performance and energy consumption

Wang, Xinbing

330

Multiple mobile robots system with network-based subsumption architecture  

Science Journals Connector (OSTI)

In this paper, a unique multiple mobile robots system is proposed to enable engineering students and engineers in the field to efficiently learn subsumption architecture and develop swarm intelligence. The subsumption architecture is known as one of the behaviour-based artificial intelligence. Each of multiple mobile robots within the system has three wheels driven by DC motors and six position sensitive detector (PSD) sensors. Network-based subsumption architecture is considered to realise a schooling behaviour by using only information from the PSD sensors. Further, a server supervisory control is introduced for poor hardware platforms with limitations of software development, i.e., the mobile robots can only behave based on the most simply subdivided reaction behaviours, i.e., reflex actions, generated from agents. Experimental results show interesting behaviour among the multiple mobile robots, such as following, avoidance and schooling.

Fusaomi Nagata; Akimasa Otsuka; Keigo Watanabe; Maki K. Habib

2013-01-01T23:59:59.000Z

331

Consumer Value Segments in Mobile Bill Paying  

Science Journals Connector (OSTI)

The purpose of the present study was to explore consumer value in mobile banking and in mobile bill paying especially. Today mobile communications technologies offer an opportunity for vast additional value for consumers' banking actions due to their ... Keywords: Consumer, value, banking, mobile banking, mobile communications

Tommi Laukkanen; Teuvo Kantanen

2006-04-01T23:59:59.000Z

332

Mobile Continuous Reading This research focuses on mobile continuous reading  

E-Print Network [OSTI]

listening and the combination of both, all while reading content on a mobile device. We use web pages users. Four conditions were investigated in the study: visual-reading, audio-listening, manual, Measurement Introduction The mobile device is used with a short attention span and users are likely to switch

333

MEMS: Detection and Tracking of Mobile Eevents Using Mobile Sensors  

E-Print Network [OSTI]

of Mathematical and Computer Sciences Colorado School of Mines, Golden, CO 80401 {nyu, qhan}@mines.edu Abstract such as air pollutant diffusion, toxic gas leakage, or wildfire spreading using mobile sensors such as robots mobile events such as air pollutant diffusion, toxic gas leakage, or wildfire spreading. However

Han, Qi "Chee"

334

Inferring human mobility patterns from taxicab location traces  

Science Journals Connector (OSTI)

Taxicabs equipped with real-time location sensing devices are increasingly becoming popular. Such location traces are a rich source of information and can be used for congestion pricing, taxicab placement, and improved city planning. An important problem ... Keywords: hidden markov models, human mobility patterns, taxi cab occupancy, trajectory analysis

Raghu Ganti; Mudhakar Srivatsa; Anand Ranganathan; Jiawei Han

2013-09-01T23:59:59.000Z

335

Mobile Technology for Children: Designing for Interaction and Learning  

Science Journals Connector (OSTI)

With the goal of improving the design of mobile technology for children, On the Move brings together contributions from HCI leaders in research, and industry, and technology and education based policy experts to analyze and evaluate and present solutions. ... Keywords: Internet, User Interfaces

Allison Druin

2009-04-01T23:59:59.000Z

336

LOCATION BASED NETWORK OPTIMIZATIONS FOR MOBILE WIRELESS NETWORKS  

E-Print Network [OSTI]

;Abstract With an expected annual doubling in mobile data volumes, wireless operators are likely to face to be instantaneously available. Secondly, two-hop relaying is considered for improving throughput and outage performance of downlink transmissions from a Wi-Fi hotspot to mo- bile destination nodes. The main focus

Hansen, René Rydhof

337

Mobile Conductance and Gossip-based Information Spreading in Mobile Networks  

E-Print Network [OSTI]

Mobile Conductance and Gossip-based Information Spreading in Mobile Networks Huazi Zhang, Zhaoyang framework for information spreading in mobile networks based on a new performance metric, mobile conductance, which allows us to separate the details of mobility models from the study of mobile spreading time. We

Dai, Huaiyu

338

Detecting and Removing Data Artifacts in Hadamard Transform Ion Mobility-Mass Spectrometry Measurements  

Science Journals Connector (OSTI)

Applying Hadamard transform multiplexing to ion mobility separations (IMS) can significantly improve the signal-to-noise ratio and throughput for IMS coupled mass spectrometry (MS) measurements by increasing t...

Spencer A. Prost; Kevin L. Crowell…

2014-12-01T23:59:59.000Z

339

Silicon-Germanium interdiffusion and its impacts on enhanced mobility MOSFETs  

E-Print Network [OSTI]

As complementary metal-oxide-semiconductor field-effect transistors (MOSFETs) scale, strained Si and SiGe technology have received more attention as a means of enhancing performance via improved carrier mobility. One of ...

Xia, Guangrui, 1976-

2006-01-01T23:59:59.000Z

340

Relation between charge carrier mobility and lifetime in organic photovoltaics  

Science Journals Connector (OSTI)

The relationship between charge carrier lifetime and mobility in a bulk heterojunction based organic solar cell utilizing diketopyrrolopyrole-naphthalene co-polymer and PC71BM in the photoactive blend layer is investigated using the photoinduced charge extraction by linearly increasing voltage technique. Light intensity delay time and temperature dependent experiments are used to quantify the charge carrier mobility and density as well as the temperature dependence of both. From the saturation of photoinduced current at high laser intensities it is shown that Langevin-type bimolecular recombination is present in the studied system. The charge carrier lifetime especially in Langevin systems is discussed to be an ambiguous and unreliable parameter to determine the performance of organic solar cells because of the dependence of charge carrier lifetime on charge carrier density mobility and type of recombination. It is revealed that the relation between charge mobility (?) and lifetime (?) is inversely proportional where the ?? product is independent of temperature. The results indicate that in photovoltaic systems with Langevin type bimolecular recombination the strategies to increase the charge lifetime might not be beneficial because of an accompanying reduction in charge carrier mobility. Instead the focus on non-Langevin mechanisms of recombination is crucial because this allows an increase in the charge extraction rate by improving the carrier lifetime density and mobility simultaneously.

Chellappan Vijila; Samarendra P. Singh; Prashant Sonar; Almantas Pivrikas; Bronson Philippa; Elumalai Naveen Kumar; S. Gomathy Sandhya; Sergey Gorelik; Jonathan Hobley; Akihiro Furube; Hiroyuki Matsuzaki; Ryuzi Katoh

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile Information Access M. Satyanarayanan  

E-Print Network [OSTI]

Carnegie Mellon University Pittsburgh, PA 15213 To appear in IEEE Personal Communications, Volume 3, No. 1, February 1996 Abstract The ability to access information on demand when mobile will be a criticalMobile Information Access M. Satyanarayanan January 1996 CMU­CS­96­107 School of Computer Science

342

Mobile Malware Attacks and Defense  

Science Journals Connector (OSTI)

Malware has gone mobile, and the security landscape is changing quickly with emerging attacks on cell phones, PDAs, and other mobile devices. This first book on the growing threat covers a wide range of malware targeting operating systems like Symbian ... Keywords: Applied, Computer Science, Computers, Handheld Computing, Macintosh, Security, Viruses

Ken Dunham

2008-10-01T23:59:59.000Z

343

Mobile communication, gamification and ludification  

Science Journals Connector (OSTI)

Gamification is the current buzz word. It refers to "the use of game design elements in non-gaming contexts" [16]. This paper aims at suggesting a new approach to this concept through taking one step back, and looking at "ludification" instead of "gamification". ... Keywords: gamification, ludification, mobile communication, mobile games, play

2012-10-01T23:59:59.000Z

344

Mobile Robotics Activities in DOE Laboratories  

SciTech Connect (OSTI)

This paper will briefly outline major activities in Department of Energy (DOE) Laboratories focused on mobile platforms, both Unmanned Ground Vehicles (UGV’s) as well as Unmanned Air Vehicles (UAV’s). The activities will be discussed in the context of the science and technology construct used by the DOE Technology Roadmap for Robotics and Intelligent Machines (RIM)1 published in 1998; namely, Perception, Reasoning, Action, and Integration. The activities to be discussed span from research and development to deployment in field operations. The activities support customers in other agencies. The discussion of "perception" will include hyperspectral sensors, complex patterns discrimination, multisensor fusion and advances in LADAR technologies, including real-world perception. "Reasoning" activities to be covered include cooperative controls, distributed systems, ad-hoc networks, platform-centric intelligence, and adaptable communications. The paper will discuss "action" activities such as advanced mobility and various air and ground platforms. In the RIM construct, "integration" includes the Human-Machine Integration. Accordingly the paper will discuss adjustable autonomy and the collaboration of operator(s) with distributed UGV’s and UAV’s. Integration also refers to the applications of these technologies into systems to perform operations such as perimeter surveillance, large-area monitoring and reconnaissance. Unique facilities and test beds for advanced mobile systems will be described. Given that this paper is an overview, rather than delve into specific detail in these activities, other more exhaustive references and sources will be cited extensively.

Ron Lujan; Jerry Harbour; John T. Feddema; Sharon Bailey; Jacob Barhen; David Reister

2005-03-01T23:59:59.000Z

345

Progress Update: Creating Mobile Emission Reduction Credits ...  

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

Documents & Publications Creating Mobile Emission Reduction Credits ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel Engines SCR & DPF RETROFITS FOR MOBILE...

346

Public Transport: Moving towards Sustainable Mobility | Open...  

Open Energy Info (EERE)

Transport: Moving towards Sustainable Mobility Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Public Transport: Moving towards Sustainable Mobility AgencyCompany...

347

Clean Mobile AG | Open Energy Information  

Open Energy Info (EERE)

Mobile AG Place: Munich, Bavaria, Germany Sector: Vehicles Product: Manufacturer of fuel cell-powered drives for small vehicles. References: Clean Mobile AG1 This article is a...

348

Mobile Technology Management - DOE Directives, Delegations, and...  

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

203.2, Mobile Technology Management by Denise Hill Functional areas: Mobile Technology, Information Technology, Information Security The order establishes requirements, assigns...

349

Mobile Robot Sensing for Environmental Applications  

E-Print Network [OSTI]

deployable cable based robot,” in IEEE ICRA, Rome, Italy,Mobile robot sensing for environmental applications Amarjeetsystems per- formed using mobile robot sensing systems. Both

2007-01-01T23:59:59.000Z

350

Michigan, Missouri: Innovative Mobile Exhibits Bring Electric...  

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

Michigan, Missouri: Innovative Mobile Exhibits Bring Electric Vehicles to Students and Public Michigan, Missouri: Innovative Mobile Exhibits Bring Electric Vehicles to Students and...

351

Mobile Traffic Management System Test Deployment  

E-Print Network [OSTI]

BERKELEY Mobile Traf?c Management System Test DeploymentHIGHWAYS MOBILE TRAFFIC MANAGEMENT SYSTEM TEST DEPLOYMENTMobile Transportation Management System (MTMS). This new and

Gerfen, Jeffrey Brian

2005-01-01T23:59:59.000Z

352

The Hematopoietic Expression Viewer: expanding mobile apps as a scientific tool  

Science Journals Connector (OSTI)

......effectively interact with the content. Mobile device apps are an increasingly important tool...controller's duties are primarily comprised of listening for events and taking appropriate actions...effectively interact with the content. Mobile device apps are an increasingly important tool......

Regis A. James; Mitchell M. Rao; Edward S. Chen; Margaret A. Goodell; Chad A. Shaw

2012-07-15T23:59:59.000Z

353

Angle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane  

E-Print Network [OSTI]

pixel could be the robot's goal, and is painted gray if it is reachable by (left) the basic control lawAngle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane Rice University.rice.edu argyros@ics.forth.gr Abstract-- Popular approaches for mobile robot navigation involve range information

Trahanias, Panos

354

Angle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane  

E-Print Network [OSTI]

could be the robot's goal, and is painted gray if it is reachable by (left) the basic control lawAngle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane Kostas E. Bekris1 for mobile robot navigation involve range information and metric maps of the workspace. For many sensors

Trahanias, Panos

355

Improving Probabilistic Route Discovery in Mobile Ad Hoc Networks  

E-Print Network [OSTI]

Abdulai,J. Ould-Khaoua,M. Mackenzie,L.M. Proceedings of 32nd IEEE Conference on Local Computer Networks (LCN 2007) pp 739-746 IEEE Computer Society Press

Abdulai, J.

356

Got Sleep? : Mobile phone application to improve sleep  

E-Print Network [OSTI]

. Also, playfulness can be also the important factor in the system. Gamification has been considered

357

Improving Mobile Database Access Over Wide-Area Networks Without  

E-Print Network [OSTI]

to compensate for weak connectivity. Its central organizing principle is that even a stale client replica can be used to reduce data transmission volume from a database server. The reduc- tion is achieved by using. This organizing principle allows Cedar to use an optimistic approach to solving the difficult problem of database

358

Airline alliances: Mobilizing network resources  

Science Journals Connector (OSTI)

Abstract Airline alliances represent examples of resource utilization across a network. This paper examines the need to distinguish between access to and mobilization of the resources held by allies. An ordinary least squares regression was applied to a sample from the Top International Airlines database. Our findings show that mobilization of the destinations of the partner companies through codeshare alliances has a positive and significant influence on the performance of airlines. Moreover, they suggest that the development of network resources mobilizing capability in increasingly dynamic and global environments will only generate an important source of competitive advantage when acted upon.

Cristóbal Casanueva; Ángeles Gallego; Ignacio Castro; María Sancho

2014-01-01T23:59:59.000Z

359

Mobile technology for irrigation problems in rural India  

Science Journals Connector (OSTI)

The backbone of Indian economy is agriculture. The main resource for the agriculture is timely and adequate supply of water. As a result, ground water irrigation has gained importance compared to canal irrigation since farmers have better control over ... Keywords: SMS, agriculture and irrigation, electricity demand, wireless and mobile technology

Umesh Hodeghatta Rao; Sanjay Mohapatra

2009-11-01T23:59:59.000Z

360

Identify Petroleum Reduction Strategies for Vehicles and Mobile Equipment |  

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

Petroleum Reduction Strategies for Vehicles and Mobile Petroleum Reduction Strategies for Vehicles and Mobile Equipment Identify Petroleum Reduction Strategies for Vehicles and Mobile Equipment October 7, 2013 - 11:50am Addthis YOU ARE HERE: Step 3 As defined by the Federal Energy Management Program (FEMP), greenhouse gas (GHG) emission reduction strategies for Federal vehicles and equipment are based on the three driving principles of petroleum reduction: Reduce vehicle miles traveled Improve fuel efficiency Use alternative fuels. These strategies provide a framework for an agency to use when developing a strategic plan that can be specifically tailored to match the agency's fleet profile and meet its mission. Agency fleet managers should evaluate petroleum reduction strategies and tactics for each fleet location, based on an evaluation of site-specific

Note: This page contains sample records for the topic "improved mobility control" 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

ARM - Mobile Aerosol Observing System  

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

FacilitiesMobile Aerosol Observing System FacilitiesMobile Aerosol Observing System AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 Data Operations AMF Fact Sheet Images Contacts AMF Deployments Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs, Colorado, 2010 Graciosa Island, Azores, 2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Mobile Aerosol Observing System Intensive aerosol observations conducted on the campus of Brookhaven National Laboratory on Long Island, New York, using the ARM Mobile Aerosol Observing System. Intensive aerosol observations conducted on the campus of Brookhaven

362

Unravelling daily human mobility motifs  

E-Print Network [OSTI]

Human mobility is differentiated by time scales. While the mechanism for long time scales has been studied, the underlying mechanism on the daily scale is still unrevealed. Here, we uncover the mechanism responsible for ...

Schneider, Christian M.

363

Mobile application for utility domains  

E-Print Network [OSTI]

This research, a collaboration between MIT and ABB/Ventyx, is focused on the development of a mobile interface for field workers in power repair settings and field service delivery. A Human Systems Engineering (HSE) approach ...

Tappan, Jacqueline

364

Steam Cracker Furnace Energy Improvements  

E-Print Network [OSTI]

Channel, ~ 25 mi. east of Houston ? Includes 4 manufacturing sites, 2 technology/engineering offices ?Significant community involvement Baytown Refinery Page 4 Steam Cracking to Olefins ? Process 60+ years old; ExxonMobil one of pioneers... Steam Cracker Furnace Energy Improvements Tim Gandler Energy Coordinator Baytown Olefins Plant, Baytown Tx 2010 Industrial Energy Technology Conference May, 2010 Page 2 ? Baytown Complex ? Steam Cracking to Olefins ? Furnace overview...

Gandler, T.

365

Trends in mobile multimedia and networks  

Science Journals Connector (OSTI)

NTT DoCoMo is the company to "DO COmmunications over the MObile Network". It reached 43 million subscribers in Japan, early 2003. This presentation covers the multimedia services over mobile networks and give a glimpse of future directions of mobile ... Keywords: hyper operator network, mobile content, seamless service

Minoru Etoh

2003-04-01T23:59:59.000Z

366

MOBILE IMMERSIVE MUSIC J. Lemordant A. Guerraz  

E-Print Network [OSTI]

MOBILE IMMERSIVE MUSIC J. Lemordant A. Guerraz WAM project jacques.lemordant @inrialpes.fr WAM project agnes.guerraz @inrialpes.fr ABSTRACT Due to obvious portability constraints, mobile technol- ogy is ideally suited for mobile applications. The use of stereo headphones or stereo speakers on mobile devices

Paris-Sud XI, Université de

367

Mobile RSVP Presentation in CSE534  

E-Print Network [OSTI]

1 Mobile RSVP Presentation in CSE534 Students: Yu Liu Xinwei She Huaming Zhang #12; 2 1 Introduction . The number of mobile users will grow and additionally the mobile users will demand the same real data through the Web, require that the network offers quality of service to moving users. . Mobility

Acharya, Raj

368

Adaptive Resource Allocation for Statistical QoS Provisioning in Mobile Wireless Communications and Networks  

E-Print Network [OSTI]

erasure-correction coding scheme for the packet-level multicast, where the erasure-correction code is dynamically constructed based on multicast receivers’ packet-loss statuses, to achieve high error-control efficiency in mobile multicast networks...

Du, Qinghe

2012-02-14T23:59:59.000Z

369

Modeled and observed ozone sensitivity to mobile-source emissions in Mexico City  

E-Print Network [OSTI]

The emission characteristics of mobile sources in the Mexico City Metropolitan Area (MCMA) have changed significantly over the past few decades in response to emission control policies, advancements in vehicle technologies ...

Zavala, M.

370

Bradbury-Nielsen vs. Field switching shutters for high resolution drift tube ion mobility spectrometers  

Science Journals Connector (OSTI)

A key component in the design of every drift tube ion mobility spectrometer (IMS) is the ion shutter which controls the injection of ions into the drift tube. Especially, compact drift tube IMS require very short...

Ansgar T. Kirk; Stefan Zimmermann

2014-12-01T23:59:59.000Z

371

Route Optimization based on ND-Proxy for Mobile Nodes in IPv6 Mobile Networks  

E-Print Network [OSTI]

Route Optimization based on ND-Proxy for Mobile Nodes in IPv6 Mobile Networks Jaehoon Jeong- bile nodes in IPv6 mobile network to perform route optimization. The route optimization is possible because mobile router provides the prefix of its care-of address for its mobile nodes by playing the role

Jeong, Jaehoon "Paul"

372

Mobile Communication Device Allowance Authorization Form Revised: April 2011 MOBILE COMMUNICATION DEVICE ALLOWANCE AUTHORIZATION FORM  

E-Print Network [OSTI]

Mobile Communication Device Allowance Authorization Form Revised: April 2011 MOBILE COMMUNICATION list your CURRENT PLAN features: Mobile service provider Name: ________ Monthly Charge: $ Device.edu/policy/itc/FINAL%20Policy%20on%20Mobile%20Comm%20Devices.htm I have read the Mobile Communication Devices Policy

Dyer, Bill

373

Sensor Relocation with Mobile Sensors:Sensor Relocation with Mobile Sensors: Design,Design,  

E-Print Network [OSTI]

Sensor Relocation with Mobile Sensors:Sensor Relocation with Mobile Sensors: Design of Freiburg #12;OverviewOverview · Sensor networks · mobile sensor · mobile robot · Mote · sensor relocation #12;Sensor networks · A wirless network . · Set of sensors. · Static Mote #12;Mobile sensor networks

Schindelhauer, Christian

374

Improved Efficiency of Miscible CO(2) Floods and Enhanced Prospects for CO(2) Flooding Heterogeneous Reservoirs.  

SciTech Connect (OSTI)

The overall goal of this project was to improve the efficiency of miscible C0{sub 2} floods and enhance the prospects for flooding heterogeneous reservoirs. This objective was accomplished through experimental and modeling research in three task areas: (1) foams for selective mobility control in heterogeneous reservoirs,( 2) reduction of the amount of C0{sub 2} required in C0{sub 2} floods, and (3) low IFT processe and the possibility of C0{sub 2} flooding in fractured reservoirs. This report provides results from the three-year project for each of the three task areas.

Grigg, R.B.; Schechter, D.S.

1997-08-01T23:59:59.000Z

375

Bulk Power System Dynamics and Control IV -Restructuring, August 24-28, Santorini, Greece. Improving Pacific Inter-tie Stability Using  

E-Print Network [OSTI]

, and C) Slatt TCSC (on the Slatt-Buckley 500 kV line); and 2) to design robust controls@eecs.wsu.edu Transmission Operations and Planning Bonneville Power Administration Vancouver, WA 98666-0491 Abstract voltage control needs for the stability support of COI lines in the Pacific Northwest system. The proposed

Venkatasubramanian, Mani V.

376

Mining Patterns of Mobile Users Through Mobile Devices and the Musics They Listens  

Science Journals Connector (OSTI)

Mobile data mining [8-11] is about the analysis of data generated by mobile activities, in search for useful patterns in order to support different types of decision making requirement. Mobile devices are loaded ...

John Goh; David Taniar

2005-01-01T23:59:59.000Z

377

Fieldtrail Mobile Smart Grid (Smart Grid Project) | Open Energy Information  

Open Energy Info (EERE)

Fieldtrail Mobile Smart Grid (Smart Grid Project) Fieldtrail Mobile Smart Grid (Smart Grid Project) Jump to: navigation, search Project Name Fieldtrail Mobile Smart Grid Country Netherlands Headquarters Location Rosmalen, Netherlands Coordinates 51.719166°, 5.367222° 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":51.719166,"lon":5.367222,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

378

Mobility changes anonymity: new passive threats in mobile ad hoc networks  

E-Print Network [OSTI]

Anonymity: New Passive Threats in Mobile Ad Hoc Networkson new anonymity threats and classify the correspondingagainst the new anonymity threats in mobile networks. The

Hong, Xiaoyan; Kong, Jiejun; Gerla, Mario

2006-01-01T23:59:59.000Z

379

Mobile Phone Programming- Multi-Player Mobile Phone Game Based on Bluetooth.  

E-Print Network [OSTI]

??Mobile games are becoming more and more popular and the industry is increasing quickly. However, majority of these mobile games are single player games. In… (more)

ZHAO, PENGCHENG

2010-01-01T23:59:59.000Z

380

DOE Mobile Detection Assessment Response System (MDARS)  

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

Helps Pioneer "Robot" Patrol Technology: Deployment of the Helps Pioneer "Robot" Patrol Technology: Deployment of the DOE Mobile Detection Assessment Response System (MDARS) The use of patrol robots to cost effectively improve security while reducing health and safety risks at DOE and NNSA nuclear facilities is an HSS advanced technology deployment "first". Over the past 2 years, the HSS Office of Technology has played a key role in working with the Army, the National Nuclear Security Administration (NNSA), the Nevada National Security Site (NNSS) and General Dynamics Robotics Systems to purchase, prototype, test and deploy the first of three MDARS patrol robots at NNSS. In addition to the initial purchase, HSS successfully negotiated a mutually acceptable

Note: This page contains sample records for the topic "improved mobility control" 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

Ultrasonic distance scanning techniques for mobile robots  

Science Journals Connector (OSTI)

This paper discusses the application of ultrasound to mobile robot navigation. Two methods employing transducer arrays are described, namely the phased array (PA) method and the maximum-likelihood-estimation (MLE) method. These two methods are compared with the conventional time-of-flight (ToF) method. The paper shows that the PA method has advantages such as giving focused beams and allowing efficient beam steering. Limitations of the method are also discussed, including the need to assume a far-field, the undesired side grating lobes and the unavailability of suitably-sized transmitters. In order to understand the measurement uncertainty, a quantified estimation of the effective range and bearing measurement is calculated. The MLE method has the advantage of only involving one transmitter. The locations of the reflectors employed with this method can be represented in a probability map. Experimental results show that the reliability can be improved through the use of multiple receivers.

D.T. Pham; Z. Ji; A. Soroka

2009-01-01T23:59:59.000Z

382

Utilizing multimedia capabilities of mobile phones to support teaching in schools in rural panama  

Science Journals Connector (OSTI)

Providing good education is one of the major challenges for humanity. In many developing regions in the world improving educational standards is seen as a central building block for improving socio-economic situation of society. Based on our research ... Keywords: developing countries, education, learning, mobile phones

Elba del Carmen Valderrama Bahamondez; Christian Winkler; Albrecht Schmidt

2011-05-01T23:59:59.000Z

383

Mobile After-media, Cultural Narratives and the Data Imaginary  

E-Print Network [OSTI]

fiction and reality in mobile experiences. Paper presentedMobile After-media, Cultural Narratives and the Datahis approach toward mobile after-media. These theoretical

Kabisch, Eric

2009-01-01T23:59:59.000Z

384

Mobile Transit Trip Planning with Real-Time Data  

E-Print Network [OSTI]

International Confer- ence on Mobile Systems, Applications,international conference on Mobile systems, applications,international conference on Mobile systems, applica- tions,

Jariyasunant, Jerald; Work, Daniel B.; Kerkez, Branko; Sengupta, Raja; Glaser, Steven; Bayen, Alexandre

2011-01-01T23:59:59.000Z

385

Mobile sensor network to monitor wastewater collection pipelines  

E-Print Network [OSTI]

17 Mobile robot localization in23 WCS monitoring using mobile floatingDesign of mobile pipeline floating sensor “SewerSnort

Lim, Jungsoo

2012-01-01T23:59:59.000Z

386

Improvement of cloned [alpha]-amylase gene expression in fed-batch culture of recombinant Saccharomyces cerevisiae by regulating both glucose and ethanol concentrations using a fuzzy controller  

SciTech Connect (OSTI)

The effect of ethanol concentration on cloned gene expression in recombinant Saccharomyces cerevisiae strain 20B-12 containing one of two plasmids, pNA3 and pNA7, was investigated in batch cultures. Plasmids pNA3 and pNA7 contain the [alpha]-amylase gene under the control of the SUC2 or PGK promoter, respectively. When the ethanol concentration was controlled at 2 to 5 g/L, the gene expressions were two times higher than those at 20 g/L ethanol. To increase the gene expression by maintaining both the ethanol and glucose concentrations at low levels, a fuzzy controller was developed. The concentrations of glucose and ethanol were controlled simultaneously at 0.15 and 2 g/L, respectively, in the production phase using the fuzzy controller in fed-batch culture. The synthesis of [alpha]-amylase was induced by the low glucose concentration and maintained at a high level of activity by regulating the ethanol concentration at 2 g/L. The secretory [alpha]-amylase activities of cells harboring plasmids pNA3 and pNA7 in fed-batch culture were 175 and 392 U/mL, and their maximal specific activities 7.7 and 12.4 U/mg dry cells, respectively. These values are two to three times higher in activity and three to four times higher in specific activity than those obtained when glucose only was controlled.

Shiba, Sumihisa; Nishida, Yoshio; Park, Y.S.; Iijima, Shinji; Kobayashi, Takeshi (Nagoya Univ. (Japan). Dept. of Biotechnology)

1994-11-05T23:59:59.000Z

387

Measures of Human Mobility Using Mobile Phone Records Enhanced with GIS Data  

E-Print Network [OSTI]

In the past decade, large scale mobile phone data have become available for the study of human movement patterns. These data hold an immense promise for understanding human behavior on a vast scale, and with a precision and accuracy never before possible with censuses, surveys or other existing data collection techniques. There is already a significant body of literature that has made key inroads into understanding human mobility using this exciting new data source, and there have been several different measures of mobility used. However, existing mobile phone based mobility measures are inconsistent, inaccurate, and confounded with social characteristics of local context. New measures would best be developed immediately as they will influence future studies of mobility using mobile phone data. In this article, we do exactly this. We discuss problems with existing mobile phone based measures of mobility and describe new methods for measuring mobility that address these concerns. Our measures of mobility, whic...

Williams, Nathalie E; Dunbar, Matthew; Eagle, Nathan; Dobra, Adrian

2014-01-01T23:59:59.000Z

388

Mobile P2Ping: A Super-Peer based Structured P2P System Using a Fleet of City Buses  

E-Print Network [OSTI]

Recently, researchers have introduced the notion of super-peers to improve signaling efficiency as well as lookup performance of peer-to-peer (P2P) systems. In a separate development, recent works on applications of mobile ...

Seet, Boon-Chong

389

12 - Mobile Robot Localization and Mapping  

Science Journals Connector (OSTI)

Localization and mapping are two of the basic operations needed for the navigation of a robot, the other operations being path planning and motion planning studied in Chapter 11. Other fundamental capabilities and functions of an integrated mobile robotic system, from the task/mission specification to the motion/task execution, are cognition of the task specification, perception of the environment, and control of the robot motion. This chapter is devoted to the localization and map building operations. Specifically, the objectives of the chapter are (i) to provide the background concepts on stochastic processes, Kalman estimation, and Bayesian estimation employed in WMR localization, (ii) to discuss the sensor imperfections that have to be taken care in their use, (iii) to introduce the relative localization (dead reckoning) concept and present the kinematic analysis of dead reckoning in WMRs, (iv) to study the absolute localization methods (trilateration, triangulation, map matching), (v) to present the application of Kalman filters for mobile robot localization, sensor calibration, and sensor fusion, and (vi) to treat the simultaneous localization and mapping problem via the extended Kalman filter, Bayesian estimation, and particle filter.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

390

Virtual university-oriented cooperative mobile agent middleware  

Science Journals Connector (OSTI)

The autonomy, cooperativity, intelligence and mobility of mobile agents make them overcome the weakness of the traditional distributed computation mode of C/S and B/S, and bring new innovative solutions to the collaborative teaching, collaborative learning and collaborative management in virtual universities. However, nowadays most of the research in mobile agent technology in terms of the Virtual University is mostly focused on a certain application for some particular users. As a result, these researches do not provide an effective control mechanism for the universal management of multiapplication agents that work for the multiusers with multicharacters. This has prevented the implementation and promulgation of agent technology in virtual universities. As far as such insufficiency is concerned, this paper demonstrates its own solution. In this paper, a Virtual University-Oriented cooperative Mobile Agent Middleware (VUMAM) and a Virtual University framework based on VUMAM are designed. In addition, the paper discusses the assignment of agent characters and function, agent naming, the control mechanism of cooperative agents and the extendability of VUMAM.

Wenqing Peng; Yuanming Luo

2006-01-01T23:59:59.000Z

391

Virtual stationary timed automata for mobile networks  

E-Print Network [OSTI]

In this thesis, we formally define a programming abstraction for mobile networks called the Virtual Stationary Automata programming layer, consisting of real mobile clients, virtual timed I/O automata called virtual ...

Nolte, Tina Ann, 1979-

2009-01-01T23:59:59.000Z

392

Trends in Mobile Multimedia and Networks  

Science Journals Connector (OSTI)

NTT DoCoMo is the company to “DO COmmunications over the MObile Network”. It reached 43 million subscribers in Japan, early 2003. This presentation covers the multimedia services over mobile networks and give ...

Minoru Etoh

2003-01-01T23:59:59.000Z

393

Insights into future mobile multimedia applications  

Science Journals Connector (OSTI)

In the last five years, mobile network applications have been characterized by the following multimedia applications: e-mail, web browsing, games, video-clip & music download, and multimedia mail. Those are early applications, in the emerging 3G mobile ...

Minoru Etoh

2007-09-01T23:59:59.000Z

394

On Data Caching for Mobile Clouds  

E-Print Network [OSTI]

Recent advances in smart device technologies have enabled a new computing paradigm in which large amounts of data are stored and processed on mobile devices. Despite the available powerful hardware, the actual capabilities of mobile devices...

Feng, Ying

2014-04-30T23:59:59.000Z

395

The Sentara Mobile Mammography Unit | Jefferson Lab  

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

The Sentara Mobile Mammography Unit The Sentara Mobile Mammography Unit will be here at Jefferson Lab on December 11, 2014 from 9 a.m.-2 p.m. Mammography detects breast cancer and...

396

Ecotransology : integrated design for urban mobility  

E-Print Network [OSTI]

This thesis demonstrates a rethinking of urban mobility through ecological design. Human mobility and ecological accountability are inextricably linked in city design; our current world ecological crisis underscores this ...

Joachim, Mitchell Whitney

2006-01-01T23:59:59.000Z

397

Designing Distributed Applications with Mobile Code Paradigms  

E-Print Network [OSTI]

Designing Distributed Applications with Mobile Code Paradigms Antonio Carzaniga Politecnico di the selection of the correct paradigm for a given distributed application. Keywords Mobile code, design with the design of distributed applications, that aims at identifying the distributable components

Carzaniga, Antonio

398

Scheduling of Mobile Robots with Preemptive Tasks  

Science Journals Connector (OSTI)

This paper deals with the problem of scheduling of mobile robots taking into account preemption cases in a ... capability of transporting materials between some machines, mobile robots are able to perform manufac...

Izabela Nielsen; Quang-Vinh Dang…

2014-01-01T23:59:59.000Z

399

Spectrum Mobility Games Richard Southwell  

E-Print Network [OSTI]

by allowing cognitive radio devices to opportunisti- cally access underutilized licensed spectrum while With the unprecedented growth in the number of mobile devices and wireless services, the radio frequency spectrum are widely underutilized. Cognitive radio technology has the great potential to alleviate spectrum scarcity

Huang, Jianwei

400

Mobile health: beyond consumer apps  

Science Journals Connector (OSTI)

The explosion of apps for the medical and wellness sectors has been noted by many. Consumer apps, which provide innovative solutions for self management for a range of health problems have flooded the market, due to high consumer demand. More recently ... Keywords: health, human computer interaction, human factors, mobile, wellbeing, wellness

Jill Freyne

2014-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Mobile Alternative Fueling Station Locator  

SciTech Connect (OSTI)

The Department of Energy's Alternative Fueling Station Locator is available on-the-go via cell phones, BlackBerrys, or other personal handheld devices. The mobile locator allows users to find the five closest biodiesel, electricity, E85, hydrogen, natural gas, and propane fueling sites using Google technology.

Not Available

2009-04-01T23:59:59.000Z

402

Seminar: 'Mobile health technology intervention  

E-Print Network [OSTI]

Seminar: 'Mobile health technology intervention for cancer patients' Wednesday 22 October Professor Nora Kearney Professor of Nursing and Cancer Care/Research Dean, College of Medicine Dentistry Higginson, Cicely Saunders Institute Director, Head of Division, Professor of Palliative Care and Policy

Kühn, Reimer

403

Mobile and Ubiquitous Computing Location Sensing  

E-Print Network [OSTI]

constellation · More than 50 launched since 1978 · Powered by solar energy · Each carries a 4 rubidium atomic cost) ­ Could improve using extra measurements #12;Global Positioning System · 27 satellite clocks ­ locally averaged to maintain accuracy ­ updated daily by US Air Force Ground control

Roussos, George

404

Gas Mileage Tips - Mobile  

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

Gas Mileage Tips Gas Mileage Tips Drive sensibly Agressive Driver Save 5% to 33% by avoiding speeding and aggressive accelerating and braking. Save: $0.16-$1.07 per gallon Obey the speed limit 65 mph sign Each 5 mph you drive over 50 mph can lower gas mileage by 7% or more. Save: $0.23-$0.45 per gallon Keep your engine properly tuned Man and woman looking under hood Fixing an out-of-tune engine can improve its efficiency by 4% on average. Save: $0.13 per gallon Keep tires properly inflated Woman checking tire pressure Under-inflated tires can lower gas mileage by 0.3% for every 1 psi drop in pressure of all four tires. Save: Up to $0.10 per gallon Remove un-needed cargo Woman shopping for a car An extra 50 to 100 pounds can lower gas mileage by about 1% to 2%. Save: $0.03-$0.06 per gallon

405

From mobility patterns to scaling in cities  

E-Print Network [OSTI]

The recent availability of data for cities has allowed scientists to exhibit scalings which present themselves in the form of a power-law dependence with population of various socio-economical (GDP, gasoline consumption, number of patents, etc.) and structural indicators (urbanized land area, lane miles of the road network, etc.). Despite numerous attempts, the gap between empirical regularities and the theoretical understanding of cities has not yet been bridged. We propose here a dynamical, stochastic theory of urban growth which accounts for the observed scalings and we confirm these results on US and OECD empirical data. Our results suggest that the key needed to decipher most of cities' complexity is the spatial structure of the mobility pattern, controlled by congestion. In particular, we show that the dependence with population size of the total number of miles driven daily, the total length of the road network, the total traffic delay, the total consumption of gasoline, the quantity of $CO_2$ emitted ...

Louf, Rémi

2014-01-01T23:59:59.000Z

406

Health Sciences Library Resources for Mobile Device Users Wireless Access for Mobile Devices  

E-Print Network [OSTI]

1 Health Sciences Library Resources for Mobile Device Users Wireless Access for Mobile Devices to configure your mobile device; instructions are available at http://www.usask.ca/ict/services/network-services/wireless/index.php - Assistance with accessing University services (such as wireless) on mobile devices is available from the ICT

Peak, Derek

407

Mobile Collaboration: Collaboratively Reading and Creating Children's Stories on Mobile Devices  

E-Print Network [OSTI]

Mobile Collaboration: Collaboratively Reading and Creating Children's Stories on Mobile Devices 20742 allisond@umiacs.umd.edu, mona@cs.umd.edu ABSTRACT This paper discusses design iterations of Mobile Stories ­ a mobile technology that empowers children to collaboratively read and create stories. We

Golbeck, Jennifer

408

Distributed Mobile Disk Cover A Building Block for Mobile Backbone Networks  

E-Print Network [OSTI]

1 Distributed Mobile Disk Cover ­ A Building Block for Mobile Backbone Networks Anand Srinivas, Gil of Mobile Backbone Networks has been recently studied by a few different approaches. An important subproblem a Geometric Disk Cover (GDC) under mobility. While from the context of static nodes and centralized solutions

Zussman, Gil

409

Mobile Application Development now and then Towards a Handbook for User-Centered Mobile  

E-Print Network [OSTI]

Mobile Application Development ­ now and then Towards a Handbook for User-Centered Mobile Schwarz, Universität Stuttgart (thomas.schwarz@informatik.uni-stuttgart.de) Abstract. Mobile applications a closer look at the distinguishing features between mobile design and "traditional" software design. We

Boll, Susanne

410

Supporting Mobile Service Usage through Physical Mobile Interaction Gregor Broll1  

E-Print Network [OSTI]

Supporting Mobile Service Usage through Physical Mobile Interaction Gregor Broll1 , Sven Siorpaes1 albrecht.schmidt@ifi.lmu.de Abstract Although mobile services can be used ubiquitously, their employment and the interaction with them are still restricted by the constraints of mobile devices. In order to facilitate

411

blackboardcollaborate.com1 Mobile Web Conferencing  

E-Print Network [OSTI]

blackboardcollaborate.com1 Mobile Web Conferencing For today's active learners, access to classes, we provide a wide variety of ways to collaborate and learn--on the go. Accessing Mobile Web Conferencing Sessions With Blackboard Collaborate mobile, you can easily join a live web conference from all

Saidak, Filip

412

Mobile Communities Requirements and Features for Success  

E-Print Network [OSTI]

Mobile Communities ­ Requirements and Features for Success Sarah Denis Heldt Media Informatics LMU.broll@ifi.lmu.de Philipp Lehmann Burda Wireless GmbH philipp.lehmann@burda.com ABSTRACT Advancements in mobile technologies and decreasing charges are starting to leverage the mobile usage of the internet and its applications. This paper

413

Mobile Device Guide Google Android based devices  

E-Print Network [OSTI]

Mobile Device Guide ­ Google Android based devices CSUF Date Last Revised: 1/20/11 Page 1 of 3;Mobile Device Guide ­ Google Android based devices CSUF Date Last Revised: 1/20/11 Page 2 of 3 2. Under' with your campus username and enter your password (case sensitive). 4. Tap `next'. #12;Mobile Device Guide

de Lijser, Peter

414

Tracking Mobile Units for Dependable Message Delivery  

E-Print Network [OSTI]

Tracking Mobile Units for Dependable Message Delivery Amy L. Murphy, Member, IEEE Computer Society at their disposal at any time, mobile computing is developing as an important research area. One of the fundamental problems in mobility is maintaining connectivity through message passing as the user moves through

Zhou, Yuanyuan

415

Mobile Game Recommendation using Touch Gestures  

E-Print Network [OSTI]

Mobile Game Recommendation using Touch Gestures Hao-Tsung Yang, De-Yu Chen, Ya-Xuan Hong, and Kuan and download more than one hundred thousands of games on mobile app marketplaces; nevertheless, how to pick discover mobile games with similar gameplay based on players' touch gestures while playing a game. We

Chen, Sheng-Wei

416

Mobile Agents: An Introduction Gian Pietro Picco  

E-Print Network [OSTI]

1 Mobile Agents: An Introduction Gian Pietro Picco Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy picco@elet.polimi.it Abstract| Mobile agents are enjoying a lot of popularity to the related research #12;eld by showing evidence of the bene#12;ts mobile agents can potentially achieve

Picco, Gian Pietro

417

NFC Mobile Payment with Citizen Digital Certificate  

E-Print Network [OSTI]

NFC Mobile Payment with Citizen Digital Certificate Wei-Dar Chen, Keith E. Mayes Smart Card Centre handsets, the mobile phone is likely to become the device of choice for accessing sophisticated services or to emulate smart cards. However the user registration process is relatively weak for access to mobile

Sheldon, Nathan D.

418

Premium Mobile Projector sony.com/projectors  

E-Print Network [OSTI]

VPL-MX20 Premium Mobile Projector sony.com/projectors #12;2 Slim,Lightweight,and Stylish ­ the VPL-MX20 Data Projector is the Perfect Choice for Mobile Applications Sony's VPL-MX20 premium mobile

Saskatchewan, University of

419

Student Mobile Device Survey Table of Contents  

E-Print Network [OSTI]

CiCS. Student Mobile Device Survey 2011 Table of Contents Section Number Subject Page 1 With little information and supporting evidence on student ownership and usage of mobile devices at the University of Sheffield, making decisions on our services and support for mobile devices has been based

Martin, Stephen John

420

MOBILE PHONES: THE NEW (CELLULAR) GEOGRAPHY  

E-Print Network [OSTI]

MOBILE PHONES: THE NEW (CELLULAR) GEOGRAPHY Pablo Mateos MSc in Geographic Information Science first at p.mateos@ucl.ac.uk MATEOS, PABLO (2004) "Mobile phones: The new (cellular) geography", unpublished MSc dissertation, University of Leicester. #12;Mobile Phones: The New (Cellular) Geography 1

Jones, Peter JS

Note: This page contains sample records for the topic "improved mobility control" 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

Knowledge Mobilization in Actiong Presentation to SSHRC  

E-Print Network [OSTI]

Knowledge Mobilization in Actiong Presentation to SSHRC Rob Greenwood & Mike ClairRob Greenwood, · Knowledge Mobilization: Harris Centre Perspective · Knowledge Mobilization: Programs & Initiatives · The Harris Centre as Broker · Conclusion: Key Lessons · Knowledge in Motion 2008!Knowledge in Motion 2008

deYoung, Brad

422

Privacy vulnerability of published anonymous mobility traces  

Science Journals Connector (OSTI)

Mobility traces of people and vehicles have been collected and published to assist the design and evaluation of mobile networks, such as large-scale urban sensing networks. Although the published traces are often made anonymous in that the true identities ... Keywords: mobility traces, privacy, security and protection

Chris Y. T. Ma; David K. Y. Yau; Nung Kwan Yip; Nageswara S. V. Rao

2013-06-01T23:59:59.000Z

423

Mobile user-experience design trends  

Science Journals Connector (OSTI)

The course presents essential concepts of mobile user-experience design and reviews mobile UX trends in Asia, the US, and Europe, including case studies of developing designs for China, a near failure of user-centered mobile UX design, and cross-cultural ...

Aaron Marcus

2013-11-01T23:59:59.000Z

424

Modeling Delivery Delay for Flooding in Mobile  

E-Print Network [OSTI]

Modeling Delivery Delay for Flooding in Mobile Ad Hoc Networks TR-UTEDGE-2009-004 Taesoo Jun for Flooding in Mobile Ad Hoc Networks Taesoo Jun, Nirmalya Roy, and Christine Julien The Center for Excellence. In mobile networks, a major component of many of these routing protocols is some form of flooding, which

Julien, Christine

425

Mobile application model for the blind  

Science Journals Connector (OSTI)

This study presents a model to design and implement mobile applications to support the displacement and dynamic decision making of users with visual disabilities. To identify the real added value of using mobile technologies as support aids for decision ... Keywords: blind learners, learning, mobile, model, software

Jaime Sánchez; Mauricio Sáenz; Nelson Baloian

2007-07-01T23:59:59.000Z

426

Security services architecture for Secure Mobile Grid Systems  

Science Journals Connector (OSTI)

Mobile Grid, is a full inheritor of the Grid with the additional feature that it supports mobile users and resources. Security is an important aspect in Grid based systems, and it is more complex to ensure this in a mobile platform owing to the limitations of resources in these devices. A Grid infrastructure that supports the participation of mobile nodes and incorporates security aspects will thus play a significant role in the development of Grid computing. The idea of developing software through systematic development processes to improve software quality is not new. However, many information systems such as those of Grid Computing are still not developed through methodologies which have been adapted to their most differentiating features. The lack of adequate development methods for this kind of systems in which security is taken into account has encouraged us to build a methodology to develop them, offering a detailed guide for their analysis, design and implementation. It is important to use software V&V techniques, according to IEEE Std. 1012 for Software Verification and Validation, to ensure that a software system meets the operational needs of the user. This ensures that the requirements for the system are correct, complete, and consistent, and that the life-cycle products correctly design and implement system requirements. This paper shows part of a development process that we are elaborating for the construction of information systems based on Grid Computing, which are highly dependent on mobile devices in which security plays a highly important role. In the design activity of the process, we design a security architecture which serves as a reference for any mobile Grid application that we wish to build since this security architecture defines a complete set of security services which will be instantiated depending on the requirements and features found in previous activities of the process. A V&V task is also defined in the design activity to validate and verify both the architecture built and the traceability of the artifacts generated in this activity. In this paper, we will present the service-oriented security architecture for Mobile Grid Systems which considers all possible security services that may be required for any mobile Grid application.

David G. Rosado; Eduardo Fernández-Medina; Javier López

2011-01-01T23:59:59.000Z

427

Home use of closed loop insulin delivery improves overnight glucose control in adults with type 1 diabetes: A four-week multicentre randomised crossover study  

E-Print Network [OSTI]

system 21 comprised a model predictive control (MPC) algorithm residing on a handheld computer linked by cable to the continuous glucose monitoring receiver. Every 12 minutes, the treat-to-target algorithm calculated a new insulin infusion rate, which... that limited maximum insulin infusion and suspended insulin delivery if glucose was at or below 4·3mmol/l or when glucose was rapidly decreasing. Algorithm version 0·3·24 was used (University of Cambridge). Assays 6 We used a chemiluminescence...

Thabit, Hood; Lubina-Solomon, Alexandra; Stadler, Marietta; Leelarathna, Lalantha; Walkinshaw, Emma; Pernet, Andrew; Allen, Janet M.; Iqbal, Ahmed; Choudhary, Pratik; Kumareswaran, Kavita; Nodale, Marianna; Nisbet, Chloe; Wilinska, Malgorzata E.; Barnard, Katherine D.; Dunger, David B.; Heller, Simon R.; Amiel, Stephanie A.; Evans, Mark L.; Hovorka, Roman

2014-06-16T23:59:59.000Z

428

Mobile Customer Relationship Management: a communication perspective  

Science Journals Connector (OSTI)

Although communication has been investigated within relationship-oriented contexts, studies concerning communication within Customer Relationship Management (CRM) are scarce, especially when customer relationships are managed with the aid of the mobile medium. The purpose of this study is to increase general understanding of communication within the mobile context, in which the communicating parties are connected through the mobile medium. The authors present a model of the communication process within the mobile context based on a case study. The main results of the study indicate that the communication process within the mobile context differs significantly from the process through traditional channels.

Jaakko Sinisalo; Heikki Karjaluoto

2007-01-01T23:59:59.000Z

429

A 3-level autonomous mobile robot navigation system designed by using reasoning/search approaches  

Science Journals Connector (OSTI)

This paper describes how soft computing methodologies such as fuzzy logic, genetic algorithms and the Dempster-Shafer theory of evidence can be applied in a mobile robot navigation system. The navigation system that is considered has three navigation ... Keywords: Backstepping algorithm, Dynamic model of mobile robot, Fuzzy logic, Genetic algorithm, Hybrid position controller, Local minima problem, Map building, Path planning, Pruning of relevant obstacles

Jasmin Velagic; Bakir Lacevic; Branislava Perunicic

2006-12-01T23:59:59.000Z

430

T-Mobile and Nokia collaborate to open up an integrated marketplace for mobile content and Internet services  

E-Print Network [OSTI]

T-Mobile and Nokia collaborate to open up an integrated marketplace for mobile content and Internet and other content offered by both T-Mobile's widget gallery and Nokia's Ovi Store · Through T-Mobile's web of their mobile phone · Launching on mass market Nokia Series 40 platform based phones Today T-Mobile and Nokia

Deutschmann, Rainer

431

ARM - ARM Mobile Facility 1 Article  

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

CenterARM Mobile Facility 1ARM Mobile Facility 1 Article CenterARM Mobile Facility 1ARM Mobile Facility 1 Article Media Contact Lynne Roeder lynne-dot-roeder-at-pnnl-dot-gov @armnewsteam Field Notes Blog Topics Field Notes89 AGU 3 AMIE 10 ARM Aerial Facility 2 ARM Mobile Facility 1 6 ARM Mobile Facility 2 47 BAECC 1 BBOP 4 MAGIC 12 MC3E 17 SGP 2 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field Notes Blog feed Events feed Employment Research Highlights Data Announcements Education News Archive What's this? Social Media Guidance January 13, 2011 [ARM Mobile Facility 1, Blog, Field Notes] AMF1 Azores Pack-up: Rust, Corrosion, and Wet Instruments Bookmark and Share PSP shows the harsh beating it took from the Atlantic mists.

432

Main Canal, Maverick County Water Control and Improvement District above Central Power and Light hydro-electric plant, at Maverick and Kinney Counties, Texas  

E-Print Network [OSTI]

BAIN CANAL NA~ICK COUNTY WATW CONTROL AND INPROllZXBZ DISTRICT ABOVE C~ POWER AND LION HYDRO ELECTRIC PLANT& AT, SIAVERICK AND KINNEY COUNT'S, T~~S By John J. Ledbetter, Jr. Approved as to style and content by: (Che man Committee Heed of pa... Hydro Plant K'KWFS Determfnatfans vcfth Power Canal Current Later Lbiasuremsnts Made by Various Hydrographsrs Using Rated Current Meters Tabulation Shaming f&7CID Irrigated and Irrigable Areas. Tabulation Shawing Average IIumber of' Acres Irrigated...

Ledbetter, John J

2012-06-07T23:59:59.000Z

433

Saudi Aramco Mobile Refinery Company (SAMREF) | Open Energy Information  

Open Energy Info (EERE)

Saudi Aramco Mobile Refinery Company (SAMREF) Saudi Aramco Mobile Refinery Company (SAMREF) Jump to: navigation, search Logo: Saudi Aramco Mobile Refinery Company (SAMREF) Name Saudi Aramco Mobile Refinery Company (SAMREF) Address P.O. Box 30078 Place Yanbu, Saudi Arabia Sector Oil and Gas Product Crude Oil Refining Phone number (966) (4) 396-4443 Website http://www.samref.com.sa/ Coordinates 24.0866932°, 38.0585527° 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":24.0866932,"lon":38.0585527,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

434

Mobile phone and my health  

Science Journals Connector (OSTI)

The interaction of the microwave radiation emitted by mobile phones with the user's body is analyzed from the International Commission on Non-Ionizing Radiation Protection (ICNIRP) recommendations perspective as a correlation between the specific absorption ratio (SAR) of the mobile phone and the call duration. The relative position of the cell phone to the user's body the dielectric properties of the exposed body parts the SAR value and the call duration are considered in the local body temperature rise due to the microwave heating effect. The recommended local temperature rise limit in the human body is evaluated according to standards. The aim of this study is to disseminate information to young people especially high school students about the microwave thermal effects on the human body to make them aware of the environmental electromagnetic pollution and to offer them a simple method of biological self protection.

Aneta Surducan; Dana Dabala; Camelia Neamtu; Vasile Surducan; Emanoil Surducan

2013-01-01T23:59:59.000Z

435

New depths with mobile rig  

SciTech Connect (OSTI)

Magee-Poole Drilling Company, a drilling contractor operating out of the south Texas drilling center of Alice, claims it operates the largest mobile drilling rig in the world. That is, it's the only wheel mounted portable rig that drills to 16,000 feet with 4 1/2-inch drill pipe - at least 3000 feet deeper than the previous mobile drilling rig ratings. The unit is designated the Ingersoll-Rand 1500 Series. What's more significant, according to co-owner Don Magee, is that the rig's portability gets the rotary table turning to the right sooner; it drills more footage per year. It rigs up in 1 1/2 days versus 3 to 4 days for a conventional skid type rig normally used at these depths. The unit's compact arrangement, with more components combined into single loads, makes possible its higher mobility. A conventional skid rig might require 25 to 30 truckloads to move the rig components, mud system, fuel and water tank, houses for utilities, storage and crew change, generators, and drill pipe. The new rig moves in anywhere from four to nine loads less. Further, the rig components weigh less without sacrificing durability.

Not Available

1982-03-01T23:59:59.000Z

436

Energy Savings Tips on the Go: Check Out the New Energy Savers Mobile Site  

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

Savings Tips on the Go: Check Out the New Energy Savers Savings Tips on the Go: Check Out the New Energy Savers Mobile Site Energy Savings Tips on the Go: Check Out the New Energy Savers Mobile Site March 16, 2012 - 12:46pm Addthis Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory For years, many of you have found energy-saving tips about how to save money and energy at home, in your vehicle, and at work on our EnergySavers desktop site. This month, we launched a new Energy Savers mobile website-which provides homeowners these with tips conveniently through your mobile device. Whether you're on the road, at the store, or talking with your home improvement contractor, you can find ways to make your home more comfortable and easier to heat and cool - and save money at the same time.

437

Control System Development and Technological Investigation for a Climbing Robot in Offshore platforms.  

E-Print Network [OSTI]

??Denne oppgaven går gjennom forskjellige type teknologier for å utvikle en mobil offshore klatre robot. To improve human safety and environmental concerns, oil and gas… (more)

Moghaddam, Akbar Faghihi

2012-01-01T23:59:59.000Z

438

Measuring and prioritising value of mobile phone usage  

Science Journals Connector (OSTI)

The purpose of this research is to measure and prioritise the value of mobile phone usage using employees' perspectives. The Content analysis method and the Analytic Hierarchy Process (AHP) were adopted to collect and analyse data. According ... Keywords: AHP, analytical hierarchy process, cell phones, content analysis, convenience, customer value, m-commerce, mobile commerce, mobile communications, mobile phone usage, mobile phone users, mobile phones, mobile services

Chung-Chu Liu

2010-12-01T23:59:59.000Z

439

LDRD final report on synthesis of shape-and size-controlled platinum and platinum alloy nanostructures on carbon with improved durability.  

SciTech Connect (OSTI)

This project is aimed to gain added durability by supporting ripening-resistant dendritic platinum and/or platinum-based alloy nanostructures on carbon. We have developed a new synthetic approach suitable for directly supporting dendritic nanostructures on VXC-72 carbon black (CB), single-walled carbon nanotubes (SWCNTs), and multi-walled carbon nanotubes (MWCNTs). The key of the synthesis is to creating a unique supporting/confining reaction environment by incorporating carbon within lipid bilayer relying on a hydrophobic-hydrophobic interaction. In order to realize size uniformity control over the supported dendritic nanostructures, a fast photocatalytic seeding method based on tin(IV) porphyrins (SnP) developed at Sandia was applied to the synthesis by using SnP-containing liposomes under tungsten light irradiation. For concept approval, one created dendritic platinum nanostructure supported on CB was fabricated into membrane electrode assemblies (MEAs) for durability examination via potential cycling. It appears that carbon supporting is essentially beneficial to an enhanced durability according to our preliminary results.

Shelnutt, John Allen; Garcia, Robert M.; Song, Yujiang; Moreno, Andres M.; Stanis, Ronald J.

2008-10-01T23:59:59.000Z

440

Refractory Improvement  

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

Refractory Improvement Refractory Improvement NETL Office of Research and Development Project Number: FWP-2012.03.03 Task 2 Project Description Industry would like gasifier on-line availability of 85-95% for utility applications and 95% for applications such as chemical production. Gasification facilities' are currently unable to meet these requirements, which have created a potential roadblock to widespread acceptance and commercialization of gasification technologies. Refractory liners and syngas coolers are among key components of the gasification process previously identified as negatively impacting gasifier availability. Ash originating from impurities in the gasifier's carbon feedstock is the root cause of many problems impacting gasifier RAM (Reliability Availability Maintainability). At the high temperatures of gasification, ash changes to liquid, gas, and solid phases which wear down refractory materials and can cause fouling, either of which can lead to unplanned shutdowns for system repair, replacement, or cleaning.

Note: This page contains sample records for the topic "improved mobility control" 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

mCOPD: Mobile Phone Based Lung Function Diagnosis and Exercise System for COPD  

E-Print Network [OSTI]

SpiroTube Mobile Edition [THO] . . . . . . . . . . . . . .mCOPD Mobile Phone basedRelated work on mobile phone based breath

Liu, Xiao

2013-01-01T23:59:59.000Z

442

Cost Controls Pay Off Big  

Science Journals Connector (OSTI)

Cost Controls Pay Off Big ... Biggest plus was the general improvement in the economy; but to this must be added successful efforts by industry to control costs. ...

1959-02-16T23:59:59.000Z

443

OIT geothermal system improvements  

SciTech Connect (OSTI)

The Oregon Institute of Technology campus has been heated by the direct use of geothermal fluids since 1964. The 11 building campus uses geothermal energy for space heating/cooling, domestic water heating, the swimming pool and sidewalk snow melt. The hydronic system was designed to use the geothermal fluids directly in heating units. In the 1970s, problems were experienced with the design and operation of the well pumps, buried piping and heating equipment. Beginning in the early 1980`s, many improvements were made to the system due to equipment performance problems and resource management requirements. This paper discusses those improvements that included the distribution system, cooling, well pumps, cascading of geothermal fluids, installation of isolation plate heat exchangers in each building and drilling of two injection wells. Plans for future improvements include better controls to manage energy use and data monitoring systems for individual buildings, and instrumentation to monitor well pump performance.

Lienau, P.J.

1996-12-31T23:59:59.000Z

444

Evaluation of Traffic Data Obtained via GPS-Enabled Mobile Phones: the Mobile Century Field Experiment  

E-Print Network [OSTI]

systems, and where the penetration rate of mobile phones inBy the end of 2007, the penetration rate of mobile phones ineld experiment is the penetration rate achieved during the

Herrera, Juan C.; Work, Daniel B.; Herring, Ryan; Ban, Xuegang Jeff; Bayen, Alexandre M

2009-01-01T23:59:59.000Z

445

Mobility Management Using Virtual Multi-parent Tree in Infrastructure Incorporated Mobile Ad Hoc Networks  

Science Journals Connector (OSTI)

Mobile nodes in the integrated network of infrastructure networks and mobile ad hoc networks need ... other traditional methods - proactive, reactive, and hybrid by resorting to simulation. The result shows...

Trung-Dinh Han; Hoon Oh

2009-01-01T23:59:59.000Z

446

Mobile home automation: merging mobile value added services and home automation technologies  

Science Journals Connector (OSTI)

In this paper we study mobile home automation, a field that emerges from an integration of mobile application platforms and home automation technologies. We motivate our research and provide ... options of how he...

Goetz Botterweck; J. Felix Hampe…

2009-06-01T23:59:59.000Z

447

Plantation Mobile Home Park, Florida: Energy Resources | Open Energy  

Open Energy Info (EERE)

Plantation Mobile Home Park, Florida: Energy Resources Plantation Mobile Home Park, Florida: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 26.702392°, -80.132515° 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":26.702392,"lon":-80.132515,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

448

ARIES: A mobile robot inspector  

SciTech Connect (OSTI)

ARIES (Autonomous Robotic Inspection Experimental System) is a mobile robot inspection system being developed for the Department of Energy (DOE) to survey and inspect drums containing mixed and low-level radioactive waste stored in warehouses at DOE facilities. The drums are typically stacked four high and arranged in rows with three-foot aisle widths. The robot will navigate through the aisles and perform an autonomous inspection operation, typically performed by a human operator. It will make real-time decisions about the condition of the drums, maintain a database of pertinent information about each drum, and generate reports.

Byrd, J.S.

1995-12-31T23:59:59.000Z

449

Residual Gas Mobility in Ormen Lange.  

E-Print Network [OSTI]

?? The topic of this report is "Mobility of Residual Gas in Ormen Lange" and it has been prepared as a part of the course… (more)

Undeland, Elisabeth

2012-01-01T23:59:59.000Z

450

Towards a societal scale, mobile sensing system  

E-Print Network [OSTI]

the physical limitations of batteries, but the mobile phoneresearched to replace batteries) that uses an electrolyte24 hours per day. Since batteries on phones typically have a

Honicky Jr., Richard Edward

2010-01-01T23:59:59.000Z

451

WIPP Receives Waste Characterized With Mobile System  

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

For Immediate Release WIPP Receives Waste Characterized With Mobile System CARLSBAD, N.M., April 12, 2002 - The first shipment of transuranic waste characterized by the Central...

452

Mobile Truck Stop Electrification Site Locator  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Mobile Truck Stop Electrification Site Locator Location Enter a city, postal code, or address Search Caution: The AFDC recommends that users verify that sites are open prior to...

453

International Marketing Communication in Mobile Phone Industry.  

E-Print Network [OSTI]

??The purpose of this study orients to the discussion of the applicability of Integrated Marketing Communication (IMC) in Chinese market, typically in the music mobile… (more)

GUO, JUNWEN

2007-01-01T23:59:59.000Z

454

Mobile Persuasive Technologies for Rural Health  

E-Print Network [OSTI]

Hello points. . . . . . . . . . . . . . . . . . . . . . .5.3: People gather at hello points to make mobile phonethere are what are called hello points - small patches which

Ramachandran, Divya Lalitha

2010-01-01T23:59:59.000Z

455

A model for representing the motivational and cultural factors that influence mobile phone usage variety.  

E-Print Network [OSTI]

??Mobile phone usage involves the mobile phone, the telecommunications system, mobile phone users, and the adoption and use of the system. Mobile communications is a… (more)

Van Biljon, Judith Arnoldine

2006-01-01T23:59:59.000Z

456

Tennessee, Pennsylvania: Porous Power Technologies Improves Lithium...  

Energy Savers [EERE]

while lowering costs and reducing impacts on the environment. Addthis Related Articles Johnson Controls Develops an Improved Vehicle Battery, Works to Cut Battery Costs in Half...

457

VPMN: virtual private mobile network towards mobility-as-a-service  

Science Journals Connector (OSTI)

In this paper we present our vision for a mobile network infrastructure that embraces advances in virtualization to dynamically create private, resource isolated, customizable, end-to-end mobile networks. We describe an architecture for such a virtual ... Keywords: virtual private mobile network

Arati Baliga; Xu Chen; Baris Coskun; Gustavo de los Reyes; Seungjoon Lee; Suhas Mathur; Jacobus E. Van der Merwe

2011-06-01T23:59:59.000Z

458

Mobile divides: gender, socioeconomic status, and mobile phone use in Rwanda  

Science Journals Connector (OSTI)

We combine data from a field survey with transaction log data from a mobile phone operator to provide new insight into daily patterns of mobile phone use in Rwanda. The analysis is divided into three parts. First, we present a statistical comparison ... Keywords: CDR, ICTD, Rwanda, call detail records, mobile phones, phone survey

Joshua Blumenstock; Nathan Eagle

2010-12-01T23:59:59.000Z

459

Extraction Steam Controls at EPLA-W  

E-Print Network [OSTI]

ExxonMobil's Baton Rouge site encompasses a world-scale refinery, chemical plant and third party power station. Historically, inflexible and unreliable control systems on two high-pressure, extracting/condensing steam turbines prevented the site...

Brinker, J. L.

2004-01-01T23:59:59.000Z

460

Information mobility in complex networks  

Science Journals Connector (OSTI)

The concept of information mobility in complex networks is introduced on the basis of a stochastic process taking place in the network. The transition matrix for this process represents the probability that the information arising at a given node is transferred to a target one. We use the fractional powers of this transition matrix to investigate the stochastic process at fractional time intervals. The mobility coefficient is then introduced on the basis of the trace of these fractional powers of the stochastic matrix. The fractional time at which a network diffuses 50% of the information contained in its nodes (1/k50) is also introduced. We then show that the scale-free random networks display a better spread of information than the non-scale-free ones. We study 38 real-world networks and analyze their performance in spreading information from their nodes. We find that some real-world networks perform even better than the scale-free networks with the same average degree and we point out some of the structural parameters that make this possible.

Ernesto Estrada

2009-08-05T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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

Compressed Air System Control Strategies  

Broader source: Energy.gov [DOE]

This tip sheet briefly discusses compressed air system control strategies as a means to improving and maintaining system performance.

462

Load Control  

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

Visualization and Controls Peer Review Visualization and Controls Peer Review Load Control for System Reliability and Measurement-Based Stability Assessment Dan Trudnowski, PhD, PE Montana Tech Butte, MT 59701 dtrudnowski@mtech.edu 406-496-4681 October 2006 2 Presentation Outline * Introduction - Goals, Enabling technologies, Overview * Load Control - Activities, Status * Stability Assessment - Activities, Status * Wrap up - Related activities, Staff 3 Goals * Research and develop technologies to improve T&D reliability * Technologies - Real-time load control methodologies - Measurement-based stability-assessment 4 Enabling Technologies * Load control enabled by GridWise technology (e.g. PNNL's GridFriendly appliance) * Real-time stability assessment enabled by Phasor Measurement (PMU) technology 5 Project Overview * Time line: April 18, 2006 thru April 17, 2008

463

Performance Impacts of Lower-Layer Cryptographic Methods in Mobile Wireless Ad Hoc Networks  

SciTech Connect (OSTI)

In high consequence systems, all layers of the protocol stack need security features. If network and data-link layer control messages are not secured, a network may be open to adversarial manipulation. The open nature of the wireless channel makes mobile wireless mobile ad hoc networks (MANETs) especially vulnerable to control plane manipulation. The objective of this research is to investigate MANET performance issues when cryptographic processing delays are applied at the data-link layer. The results of analysis are combined with modeling and simulation experiments to show that network performance in MANETs is highly sensitive to the cryptographic overhead.

VAN LEEUWEN, BRIAN P.; TORGERSON, MARK D.

2002-10-01T23:59:59.000Z

464

Effect of Gas Diffusion on Mobility of Foam for Enhanced Oil Recovery Lars E. Nonnekes1  

E-Print Network [OSTI]

Effect of Gas Diffusion on Mobility of Foam for Enhanced Oil Recovery Lars E. Nonnekes1 Foam can improve the sweep efficiency of gas injected into oil reservoirs for enhanced oil recovery University William Richard Rossen Email: W.R.Rossen@tudelft.nl Abstract Transport of gas across

Cox, Simon

465

Managing mobile species with MPAs: the effects of mobility, larval dispersal, and fishing mortality on closure size  

E-Print Network [OSTI]

Managing mobile species with MPAs: the effects of mobility, larval dispersal, and fishing mortality. Managing mobile species with MPAs: the effects of mobility, larval dispersal, and fishing mortality to understand the interaction between larval dispersal, adult mobility, and fishing mortality. In this paper

Codling, Edward A.

466

3-D Mobile-to-Mobile channel tracking with first-order autoregressive model-based Kalman filter  

E-Print Network [OSTI]

1 3-D Mobile-to-Mobile channel tracking with first-order autoregressive model-based Kalman filter estimation in Mobile- to-Mobile communication assuming three-dimensional scattering environment and the approximated expression of the estimation variance in output of the Kalman filter, both for Fixed-to-Mobile

Paris-Sud XI, Université de

467

AGREEMENT FOR MOBILE TECHNOLOGY ACCESS AND My signature on the "Mobile Technology Access and Payment Option Request"  

E-Print Network [OSTI]

AGREEMENT FOR MOBILE TECHNOLOGY ACCESS AND ALLOWANCE My signature on the "Mobile Technology Access and conditions identified in the Access to Mobile Technology and the Payment Options for Mobile Technology policies [http://hr.uoregon.edu/policy/MobileTechnologyDevice.html]. 2. I understand that that I must

Oregon, University of

468

Older adults are mobile too!Identifying the barriers and facilitators to older adults’ use of mHealth for pain management  

Science Journals Connector (OSTI)

Mobile health (mHealth) is a rapidly emerging field with the ... about older adults’ attitudes and perceptions of mHealth or perceived barriers and facilitators to using mHealth tools to improve pain management.

Samantha J Parker; Sonal Jessel; Joshua E Richardson; M Cary Reid

2013-05-01T23:59:59.000Z

469

High-performance controllable ambipolar infrared phototransistors based on graphene-quantum dot hybrid  

E-Print Network [OSTI]

The field effect transistors (FETs) exhibited ultrahigh responsivity (107 A/W) to infrared light with great improvement of mobility in graphene / PbS quantum dot (QD) hybrid. These reported transistors are either unipolar or depletion mode devices. In this paper, we presented and fabricated conveniently-controlled grapheme / PbS QD hybrid FETs. Through the investigation on electric and optoelectronic properties, the ambipolar FETs (normally OFF) can be switched ON by raising gate voltage (VG) up to 3.7 V and -0.8 V in the first and third quadrants. Near these thresholds (VT) each carrier species shows comparable mobility (~ 300 cm2V-1s-1). Photo-responsivity reach ~ 107 A/W near each threshold and it will linearly increases with (VG-VT). These hybrid FETs become strongly competitive candidates for devices in flexible integrated circuits with low cost, large area, low-energy consumption and high performances.

Wang, Ran; Wang, Haiyang; Song, Xiaoxian; Jin, Lufan; Dai, Haitao; Wu, Sen; Yao, Jianquan

2014-01-01T23:59:59.000Z

470

Comparison of the Accuracy and Speed of Transient Mobile A/C System Simulation Models: Preprint  

SciTech Connect (OSTI)

The operation of air conditioning (A/C) systems is a significant contributor to the total amount of fuel used by light- and heavy-duty vehicles. Therefore, continued improvement of the efficiency of these mobile A/C systems is important. Numerical simulation has been used to reduce the system development time and to improve the electronic controls, but numerical models that include highly detailed physics run slower than desired for carrying out vehicle-focused drive cycle-based system optimization. Therefore, faster models are needed even if some accuracy is sacrificed. In this study, a validated model with highly detailed physics, the 'Fully-Detailed' model, and two models with different levels of simplification, the 'Quasi-Transient' and the 'Mapped- Component' models, are compared. The Quasi-Transient model applies some simplifications compared to the Fully-Detailed model to allow faster model execution speeds. The Mapped-Component model is similar to the Quasi-Transient model except instead of detailed flow and heat transfer calculations in the heat exchangers, it uses lookup tables created with the Quasi-Transient model. All three models are set up to represent the same physical A/C system and the same electronic controls. Speed and results of the three model versions are compared for steady state and transient operation. Steady state simulated data are also compared to measured data. The results show that the Quasi-Transient and Mapped-Component models ran much faster than the Fully-Detailed model, on the order of 10- and 100-fold, respectively. They also adequately approach the results of the Fully-Detailed model for steady-state operation, and for drive cycle-based efficiency predictions

Kiss, T.; Lustbader, J.

2014-03-01T23:59:59.000Z

471

Necessity and feasibility of improving the residual resistance factor of polymer flooding in heavy oil reservoirs  

Science Journals Connector (OSTI)

The efficiency of water flooding in heavy oil reservoirs would be improved by increasing the viscosity of the displacing phase, but the sweep efficiency is not of significance due to the low mobility of the vi...

Leiting Shi; Zhongbin Ye; Zhuo Zhang; Changjiang Zhou; Shanshan Zhu…

2010-06-01T23:59:59.000Z

472

Energy Consumption Issues on Mobile Network Systems  

Science Journals Connector (OSTI)

This paper describes energy consumption demographic data in operating real mobile networks. We examine published data from NTT DoCoMo, which is the largest mobile telecommunication operator in Japan and operating nation-wide 3G networks, and identify ... Keywords: Moble Network, Power Consumption, Battery, CO2, Green Network

Minoru Etoh; Tomoyuki Ohya; Yuji Nakayama

2008-07-01T23:59:59.000Z

473

Providing Users’ Anonymity in Mobile Hybrid Networks  

Science Journals Connector (OSTI)

We present a novel hybrid communication protocol that guarantees mobile users’ anonymity against a wide-range of adversaries by exploiting the capability of handheld devices to connect to both WiFi and cellular networks. Unlike existing anonymity ... Keywords: Anonymity, mobile hybrid networks, privacy

Claudio A. Ardagna; Sushil Jajodia; Pierangela Samarati; Angelos Stavrou

2013-05-01T23:59:59.000Z

474

City of College Station's Thermographic Mobile Scan  

E-Print Network [OSTI]

During the first quarter of 1986, the City of College Station conducted a thermographic mobile scan of the entire city. A thermographic mobile scan is a process by which heat loss/heat gain data is accumulated by a vehicle traveling the city...

Shear, C. K.

1986-01-01T23:59:59.000Z

475

Mobile Ad Hoc Networks Asis Nasipuri  

E-Print Network [OSTI]

1 Mobile Ad Hoc Networks Asis Nasipuri Department of Electrical & Computer Engineering The University of North Carolina at Charlotte Charlotte, NC 28223-0001 I. INTRODUCTION A mobile ad hoc network of base stations, make ad hoc networks radically different from other wireless LANs. Whereas communication

Nasipuri, Asis

476

Adding haptic feedback to mobile tv  

Science Journals Connector (OSTI)

With the abundance of large-screen displays, mobile device users currently have little motivation to stream video content and TV broadcasts to their device - the desire to watch content 'on the move' does not currently outweigh the necessity of viewing ... Keywords: back-of-device feedback, haptic feedback, mobile tv, ultrasonic feedback

Jason Alexander; Mark T. Marshall; Sriram Subramanian

2011-05-01T23:59:59.000Z

477

Protecting health information on mobile devices  

Science Journals Connector (OSTI)

Mobile applications running on devices such as smart phones and tablets will be increasingly used to provide convenient access to health information to health professionals and patients. Also, patients will use these devices to transmit health information ... Keywords: healthcare data protection, mobile devices, security

Musheer Ahmed; Mustaque Ahamad

2012-02-01T23:59:59.000Z

478

Windows Mobile LiveSD Forensics  

Science Journals Connector (OSTI)

More and more often, smartphones are relevant targets of civil and criminal investigations. Currently, there are several tools available to acquire forensic evidence from smartphones. Unfortunately, most of these tools require to connect the smartphone ... Keywords: Data acquisition, Mobile device forensics, PocketPC forensics, Window CE forensics, Windows Mobile Forensics

EyüP S. Canlar; Mauro Conti; Bruno Crispo; Roberto Di Pietro

2013-03-01T23:59:59.000Z

479

Improved aethalometer  

DOE Patents [OSTI]

An improved aethalometer having a single light source and a single light detector and two light paths from the light source to the light detector. A quartz fiber filter is inserted in the device, the filter having a collection area in one light path and a reference area in the other light path. A gas flow path through the aethalometer housing allows ambient air to flow through the collection area of the filter so that aerosol particles can be collected on the filter. A rotating disk with an opening therethrough allows light for the light source to pass alternately through the two light paths. The voltage output of the detector is applied to a VCO and the VCO pulses for light transmission separately through the two light paths, are counted and compared to determine the absorption coefficient of the collected aerosol particles. 5 figs.

Hansen, A.D.

1988-01-25T23:59:59.000Z

480

Analysis from robust control under environment constraint: application for traffic model  

Science Journals Connector (OSTI)

Traffic management solutions are increasingly called for to address problems of transport and mobility and nowadays, even to address the environmental impact. Traffic control uses strategies to reduce bottlenecks, travel time and costs. Although it is usually assumed that an improved traffic flow will result in lower vehicle emissions, little scientific research has been done concerning the effects of traffic control on emissions. Moreover, because changes in traffic flow do not necessarily influence travel times, noise and air quality in the same way, there is a clear need for a combined approach. The main idea was to apply control strategy on the road under the assumption of ensuring fluid traffic flow. In the following the gas emissions were evaluated as results of this regulation procedure. The proposed control approach is based on non-integer robust methodology. The chosen study case is a macroscopic traffic flow model.

Milka Uzunova; Mohamed Djemai

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "improved mobility control" 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.


481

Navigational strategies of mobile robots: a review  

Science Journals Connector (OSTI)

Present research and development in the area of mobile robots mainly aims at study of various techniques, methods and sensors being used for navigation of mobile robots. Different techniques have been discussed for the navigation of mobile robots in the first part. These techniques can be subdivided as (1) fuzzy logic technique, (2) neural network technique and (3) genetic algorithm technique. In the second part, five methods are being discussed for navigation of mobile robots. These methods are (1) potential field method, (2) grid-type method, (3) heuristic method, (4) adaptive navigation method and (5) Virtual Impedance method. The last segment focuses on different sensors being used for navigation of mobile robots. The sensors discussed are (1) ultrasonic sensor, (2) laser sensor, (3) magnetic compass disk sensor, (4) infrared sensor and (5) vision (camera) sensor. Keeping the above strategies in forefront, a comprehensive discussion has been made and is described methodologically in the current paper.

Dayal R. Parhi; Mukesh Kumar Singh

2009-01-01T23:59:59.000Z

482

Competitive Landscape of Mobile Telecommunications Tower Companies in India  

Science Journals Connector (OSTI)

With the entry of 3G and WiMAX players, the Indian mobile subscriber base is expected to reach 1110 million by the end of 2015. To meet mobile infrastructure demand, India will require approximately 350,000 to 400,000 mobile telecommunications towers ... Keywords: Business Models, Infrastructure Sharing, Joint Venture Companies, Mobile Network Operators MNO, Mobile Telecommunication Tower Valuation, Mobile Telecommunications Towers, Telecommunication Circles

N.P. Singh

2010-01-01T23:59:59.000Z

483

Ion mobility analysis of lipoproteins  

DOE Patents [OSTI]

A medical diagnostic method and instrumentation system for analyzing noncovalently bonded agglomerated biological particles is described. The method and system comprises: a method of preparation for the biological particles; an electrospray generator; an alpha particle radiation source; a differential mobility analyzer; a particle counter; and data acquisition and analysis means. The medical device is useful for the assessment of human diseases, such as cardiac disease risk and hyperlipidemia, by rapid quantitative analysis of lipoprotein fraction densities. Initially, purification procedures are described to reduce an initial blood sample to an analytical input to the instrument. The measured sizes from the analytical sample are correlated with densities, resulting in a spectrum of lipoprotein densities. The lipoprotein density distribution can then be used to characterize cardiac and other lipid-related health risks.

Benner, W. Henry (Danville, CA); Krauss, Ronald M. (Berkeley, CA); Blanche, Patricia J. (Berkeley, CA)

2007-08-21T23:59:59.000Z

484

Improved efficiency of miscible CO{sub 2} floods and enhanced prospects for CO{sub 2} flooding heterogeneous reservoirs. Annual report, April 14, 1994--April 13, 1995  

SciTech Connect (OSTI)

The overall goal of this project is to improve the efficiency of miscible CO{sub 2} floods and enhance the prospects for flooding heterogeneous reservoirs. This objective is being accomplished by extending experimental research in three task areas: (1) foams for selective mobility control in heterogeneous reservoirs, (2) reduction of the amount of CO{sub 2} required in CO{sub 2} floods, and (3) miscible CO{sub 2} flooding in fractured reservoirs. This report provides results of the first year of the three-year project for each of the three task areas.

Grigg, R.; Heller, J.; Schechter, D.

1995-09-01T23:59:59.000Z

485

SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES | Department of...  

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

SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

486

Automotive Fuels - The Challenge for Sustainable Mobility | Department...  

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

Automotive Fuels - The Challenge for Sustainable Mobility Automotive Fuels - The Challenge for Sustainable Mobility Overview of challenges and future fuel options...

487

Are the Radical Centers in Peptide Radical Cations Mobile? The...  

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

the Radical Centers in Peptide Radical Cations Mobile? The Generation, Tautomerism, and Dissociation of Isomeric ? Are the Radical Centers in Peptide Radical Cations Mobile?...

488

EPA Mobile Source Rule Update | Department of Energy  

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

EPA Mobile Source Rule Update EPA Mobile Source Rule Update 2003 DEER Conference Presentation: U.S. Department of Energy FreedomCAR and Vehicle Technologies Program...

489

Public Finance Mechanisms to Mobilize Investment in Climate Change...  

Open Energy Info (EERE)

Mechanisms to Mobilize Investment in Climate Change Mitigation Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Public Finance Mechanisms to Mobilize Investment in...

490

1 Introduction 1 1.1 Mobile agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  

E-Print Network [OSTI]

Contents 1 Introduction 1 1.1 Mobile agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Historical perspective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Applications of mobile agents . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.4 Drawbacks

Tripathi, Anand

491

Hanford Solar Power: Cost Effective and Mobile | Department of...  

Office of Environmental Management (EM)

Hanford Solar Power: Cost Effective and Mobile Hanford Solar Power: Cost Effective and Mobile February 26, 2014 - 12:00pm Addthis EMs Richland Operations Office and its...

492

Moving Protons with Pendant Amines: Proton Mobility in a Nickel...  

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

Moving Protons with Pendant Amines: Proton Mobility in a Nickel Catalyst for Oxidation of Hydrogen. Moving Protons with Pendant Amines: Proton Mobility in a Nickel Catalyst for...

493

The Fuel Cell Mobile Light Project - A DOE Market Transformation...  

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

The Fuel Cell Mobile Light Project - A DOE Market Transformation Activity The Fuel Cell Mobile Light Project - A DOE Market Transformation Activity Download the presentation slides...

494

DOE and Partners Demonstrate Mobile Geothermal Power System at...  

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

Partners Demonstrate Mobile Geothermal Power System at 2009 Geothermal Energy Expo DOE and Partners Demonstrate Mobile Geothermal Power System at 2009 Geothermal Energy Expo...

495

Accelerated High-Resolution Differential Ion Mobility Separations...  

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

High-Resolution Differential Ion Mobility Separations Using Hydrogen. Accelerated High-Resolution Differential Ion Mobility Separations Using Hydrogen. Abstract: The resolving...

496

Probing the Mobility of Supercooled Liquid 3-Methylpentane at...  

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

Mobility of Supercooled Liquid 3-Methylpentane at Temperatures Near the Glass Transition Using Rare Gas Permeation. Probing the Mobility of Supercooled Liquid 3-Methylpentane at...

497

Mobility of Supercooled liquid Toluene, Ethylbenzene, and Benzene...  

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

Mobility of Supercooled liquid Toluene, Ethylbenzene, and Benzene near their Glass Transition Temperatures Investigated using Mobility of Supercooled liquid Toluene, Ethylbenzene,...

498

Sandia National Laboratories: fuel cell mobile lighting system  

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

fuel cell mobile lighting system Patent Awarded for the Fuel Cell Mobile Light On August 28, 2013, in Center for Infrastructure Research and Innovation (CIRI), CRF, Energy, Energy...

499

Alternative Fuels Data Center: Mobile Source Emissions Reduction  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Mobile Source Mobile Source Emissions Reduction Requirements to someone by E-mail Share Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Facebook Tweet about Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Twitter Bookmark Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Google Bookmark Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Delicious Rank Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Digg Find More places to share Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

500

High Performance Healthcare Buildings: A Roadmap to Improved Energy Efficiency  

E-Print Network [OSTI]

source heat pumps (newer designs are greatly improved), condensing boilers, advanced control sequences to allow utilization of variable air

Singer, Brett C.

2010-01-01T23:59:59.000Z