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Note: This page contains sample records for the topic "device design properties" 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.


1

Physical properties and design of light-emitting devices based on organic materials and nanoparticles  

E-Print Network (OSTI)

This thesis presents the detailed experimental and theoretical characterization of light-emitting devices (LEDs) based on organic semiconductors and colloidal quantum dots (QDs). This hybrid material system has several ...

Anikeeva, Polina Olegovna

2009-01-01T23:59:59.000Z

2

Property:Device Units Sold? | Open Energy Information  

Open Energy Info (EERE)

Units Sold? Jump to: navigation, search Property Name Device Units Sold? Property Type String Retrieved from "http:en.openei.orgwindex.php?titleProperty:DeviceUnitsSold%3F&o...

3

Determining the Solar Optical Properties of Windows with Shading Devices-  

NLE Websites -- All DOE Office Websites (Extended Search)

Determining the Solar Optical Properties of Windows with Shading Devices- Determining the Solar Optical Properties of Windows with Shading Devices- New Measurement and Modeling Techniques Speaker(s): Nathan Kotey Date: October 5, 2009 - 12:00pm Location: 90-3122 The global interest to reduce energy use in buildings has focussed new efforts to more aggressively reduce energy used by all major building components, such as window systems. Although good progress has been made in reducing heat loss, the contribution of windows to heat gain, peak cooling loads and cooling energy consumption is increasingly viewed globally as a problem. While glass coatings provide some control, shading devices on windows have the potential to do an even better job to reduce peak cooling load and annual energy consumption because there are more design parameters

4

Lansce Wire Scanning Diagnostics Device Mechanical Design  

SciTech Connect

The Accelerator Operations & Technology Division at Los Alamos National Laboratory operates a linear particle accelerator which utilizes 110 wire scanning diagnostics devices to gain position and intensity information of the proton beam. In the upcoming LANSCE improvements, 51 of these wire scanners are to be replaced with a new design, up-to-date technology and off-the-shelf components. This document outlines the requirements for the mechanical design of the LANSCE wire scanner and presents the recently developed linac wire scanner prototype. Additionally, this document presents the design modifications that have been implemented into the fabrication and assembly of this first linac wire scanner prototype. Also, this document will present the design for the second, third, and fourth wire scanner prototypes being developed. Prototypes 2 and 3 belong to a different section of the particle accelerator and therefore have slightly different design specifications. Prototype 4 is a modification of a previously used wire scanner in our facility. Lastly, the paper concludes with a plan for future work on the wire scanner development.

Rodriguez Esparza, Sergio [Los Alamos National Laboratory; Batygin, Yuri K. [Los Alamos National Laboratory; Gilpatrick, John D. [Los Alamos National Laboratory; Gruchalla, Michael E. [Los Alamos National Laboratory; Maestas, Alfred J. [Los Alamos National Laboratory; Pillai, Chandra [Los Alamos National Laboratory; Raybun, Joseph L. [Los Alamos National Laboratory; Sattler, F. D. [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Smith, Brian G. [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

5

Design of Thermal Power Generation Device for Vehicle Recharging  

Science Conference Proceedings (OSTI)

With thermal power generation as the basis, vehicle heat sources (such as engine and exhaust pipe) as the carrier, and AT89C52 as the control center, this paper has designed a thermal power generation device for vehicle recharging. This device consists ... Keywords: thermal power generation, power supply for recharging, vehicle devices, design

Hong Fang

2012-07-01T23:59:59.000Z

6

Photonic Device Layout Within the Foundry CMOS Design Environment  

E-Print Network (OSTI)

A design methodology to layout photonic devices within standard electronic complementary metal-oxide-semiconductor (CMOS) foundry data preparation flows is described. This platform has enabled the fabrication of designs ...

Orcutt, Jason Scott

7

Phosphorylation based insulation devices design and implementation  

E-Print Network (OSTI)

This thesis presents the analysis of a phosphorylation based insulation device implemented in Saccharomyces cerevisae and the minimization of the retroactivity to the input and retroactivity to the output of a single cycle ...

Rivera Ortiz, Phillip M. (Phillip Michael)

2013-01-01T23:59:59.000Z

8

Harford County - Property Tax Credit for Solar and Geothermal Devices |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Harford County - Property Tax Credit for Solar and Geothermal Harford County - Property Tax Credit for Solar and Geothermal Devices Harford County - Property Tax Credit for Solar and Geothermal Devices < Back Eligibility Commercial Industrial Residential Savings Category Buying & Making Electricity Solar Heating & Cooling Commercial Heating & Cooling Heating Water Heating Maximum Rebate $2,500 per device; $5,000 per property per fiscal year Program Info State Maryland Program Type Property Tax Incentive Rebate Amount 100% of ''total'' real property taxes on the host structure for one year Provider Harford County Harford County offers a tax credit from real property taxes imposed on residential buildings, nonresidential buildings, or other structures that use solar or geothermal devices for heating, cooling, water heating or

9

Design and Fabrication of Nanochannel Devices  

E-Print Network (OSTI)

Nanochannel devices have been explored over the years with wide applications in bio/chemical analysis. With a dimension comparable to many bio-samples, such as proteins, viruses and DNA, nanochannels can be used as a platform to manipulate and detect such analytes with unique advantages. As a prerequisite to the development of nanochannel devices, various nanofabrication techniques have been investigated by many researchers for decades. In this dissertation, three different fabrication approaches for nanochannels are discussed, including a novel scanning coaxial electrospinning process, a heat-induced stretching approach and a standard contact photolithography process. The scanning coaxial electrospinning process is established based on conventional electrospinning process. A coaxial jet, with the motor oil as the core and spin-on-glass-coating/PVP solution as the shell, is deposited on the rotating collector as oriented coaxial nanofibers. These nanofibers are then annealed to eliminate the core material and form the hollow interior. Silica nanochannels with an inner diameter as small as 15 nm were obtained. The heat-induced stretching approach includes using commercially available fused silica tubings to create nanochannels by thermal deforming. This method and the electrospinning technique both focus on fabricate one-dimensional nanochannels with a circular opening. Fluorescent dye was used as a testing sample for single molecule detection and electrokinetic analysis in the resultant nanochannels. Another nanochannel device described in this dissertation has a deep-shallow step structure. It was fabricated by standard contact lithography, followed by etching and bonding. This device was applied as a powerful detection platform for surface-enhanced Raman spectroscopy (SERS). The experiment results proved that it is able to highly improve the sensitivity and efficiency of SERS. The SERS enhancement factor obtained from the device is 108. Moreover, the molecule enrichment effect of this device provides an extra 105 enhancement. The detection can be efficiently finished within minutes after simply loading the mixture of analytes solution and gold nanoparticles in the device. The sample consumption is in micro-liter range. Potential applications in diagnostics, prognositics and water pollutants detection could be achieved using this device.

Wang, Miao

2009-08-01T23:59:59.000Z

10

Design of Chemotaxis Devices Using Nano-Motors  

E-Print Network (OSTI)

Several designs for micro-devices for chemotaxis based on nano-motors are proposed. The nano- or micro-motors are the conventional Janus rods or spheres that are powered by the catalytic reaction of fuels such as hydrogen peroxide. It is shown how these can be linked to make a device that can follow a concentration gradient of the fuel. The feasibility of assembling the devices using micromanipulation or metallic deposition is discussed. A possible design principle is suggested for a device that follows the concentration gradient of an analyte other than the fuel.

Attard, Phil

2012-01-01T23:59:59.000Z

11

Chalcogenide Glass Radiation Sensor; Materials Development, Design and Device Testing  

SciTech Connect

For many decades, various radiation detecting material have been extensively researched, to find a better material or mechanism for radiation sensing. Recently, there is a growing need for a smaller and effective material or device that can perform similar functions of bulkier Geiger counters and other measurement options, which fail the requirement for easy, cheap and accurate radiation dose measurement. Here arises the use of thin film chalcogenide glass, which has unique properties of high thermal stability along with high sensitivity towards short wavelength radiation. The unique properties of chalcogenide glasses are attributed to the lone pair p-shell electrons, which provide some distinctive optical properties when compared to crystalline material. These qualities are derived from the energy band diagram and the presence of localized states in the band gap. Chalcogenide glasses have band tail states and localized states, along with the two band states. These extra states are primarily due to the lone pair electrons as well as the amorphous structure of the glasses. The localized states between the conductance band (CB) and valence band (VB) are primarily due to the presence of the lone pair electrons, while the band tail states are attributed to the Van der Waalâ??s forces between layers of atoms [1]. Localized states are trap locations within the band gap where electrons from the valence band can hop into, in their path towards the conduction band. Tail states on the other hand are locations near the band gap edges and are known as Urbach tail states (Eu). These states are occupied with many electrons that can participate in the various transformations due to interaction with photons. According to Y. Utsugi et. al.[2], the electron-phonon interactions are responsible for the generation of the Urbach tails. These states are responsible for setting the absorption edge for these glasses and photons with energy near the band gap affect these states. We have studied the effect of x-rays and γ-rays, on thin film chalcogenide glasses and applied them in conjunction with film incorporating a silver source in a new type of radiation sensor for which we have an US patent application [3]. In this report, we give data about our studies regarding our designed radiation sensor along with the testing and performance at various radiation doses. These studies have been preceded by materials characterization research related to the compositional and structural characteristics of the active materials used in the radiation sensor design. During the work on the project, we collected a large volume of material since every experiment was repeated many times to verify the results. We conducted a comprehensive material research, analysis and discussion with the aim to understand the nature of the occurring effects, design different structures to harness these effects, generated models to aid in the understanding the effects, built different device structures and collected data to quantify device performance. These various aspects of our investigation have been detailed in previous quarterly reports. In this report, we present our main results and emphasize on the results pertaining to the core project goals â?? materials development, sensor design and testing and with an emphasis on classifying the appropriate material and design for the optimal application. The report has three main parts: (i) Presentation of the main data; (ii) Bulleted summary of the most important results; (iii) List of the patent, journal publications, conference proceedings and conferences participation, occurring as a result of working on the project.

Mitkova, Maria; Butt, Darryl; Kozicki, Michael; Barnaby, Hugo

2013-04-30T23:59:59.000Z

12

Property:Number of Devices Deployed | Open Energy Information  

Open Energy Info (EERE)

Devices Deployed Devices Deployed Jump to: navigation, search Property Name Number of Devices Deployed Property Type Number Pages using the property "Number of Devices Deployed" Showing 25 pages using this property. (previous 25) (next 25) M MHK Projects/40MW Lewis project + 0 + MHK Projects/ADM 3 + 1 + MHK Projects/ADM 5 + 1 + MHK Projects/AW Energy EMEC + 1 + MHK Projects/AWS II + 2 + MHK Projects/Admirality Inlet Tidal Energy Project + 450 + MHK Projects/Agucadoura + 3 + MHK Projects/Alaska 18 + 100 + MHK Projects/Alaska 36 + 100 + MHK Projects/Algiers Cutoff Project + 40 + MHK Projects/Algiers Light Project + 0 + MHK Projects/Anconia Point Project + 0 + MHK Projects/Ashley Point Project + 0 + MHK Projects/Avondale Bend Project + 0 + MHK Projects/Bar Field Bend + 0 +

13

Design of scaled electronic devices based on III-V materials  

E-Print Network (OSTI)

performance and power consumption in terms of device design.length. The power consumption of a single device furtherthe current device scaling is the power consumption, which

Wang, Lingquan

2009-01-01T23:59:59.000Z

14

Semiconductor device design using the BiMADS algorithm  

Science Conference Proceedings (OSTI)

Designing high-performance semiconductor devices is a complex optimization problem, which is characterized by multiple and, often, conflicting objectives. In this research work, we introduce a multi-objective optimization design approach based on the ... Keywords: Diodes, Drift-diffusion, Energy-transport, MESFETs, MOSFETs, Optimization, Semiconductors

Giovanni Stracquadanio, Vittorio Romano, Giuseppe Nicosia

2013-06-01T23:59:59.000Z

15

Baltimore County - Property Tax Credit for Solar and Geothermal Devices  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Baltimore County - Property Tax Credit for Solar and Geothermal Baltimore County - Property Tax Credit for Solar and Geothermal Devices (Maryland) Baltimore County - Property Tax Credit for Solar and Geothermal Devices (Maryland) < Back Eligibility Multi-Family Residential Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Maximum Rebate Heating System: $5,000 Hot Water Supply System: $1,500 Electricity Generation, Cooling: Not specified Program Info State Maryland Program Type Property Tax Incentive Rebate Amount Allocated budget for these credits has been met. New applications will be placed on a wait list. 50% of eligible costs Provider Office of Budget and Finance The total volume of credits awarded through this program has exceeded the

16

Property:Device Nameplate Capacity (MW) | Open Energy Information  

Open Energy Info (EERE)

Nameplate Capacity (MW) Nameplate Capacity (MW) Jump to: navigation, search Property Name Device Nameplate Capacity (MW) Property Type String Pages using the property "Device Nameplate Capacity (MW)" Showing 25 pages using this property. (previous 25) (next 25) M MHK Projects/40MW Lewis project + 0 8MW 1MW Farms of multiple machines will be deployed with installed capacity of circa 20MW + MHK Projects/Algiers Light Project + 40 kW + MHK Projects/Anconia Point Project + 40 kW + MHK Projects/Ashley Point Project + 40 kW + MHK Projects/Avondale Bend Project + 40 kW + MHK Projects/Bar Field Bend + 40 kW + MHK Projects/Barfield Point + 40 kW + MHK Projects/Bayou Latenache + 40 kW + MHK Projects/BioSTREAM Pilot Plant + 250kW pilot 1MW commercial scale + MHK Projects/Bondurant Chute + 40 kW +

17

Design and implementation of an underwater sound recording device  

SciTech Connect

To monitor the underwater sound and pressure waves generated by activities such as underwater blasting and pile driving, an autonomous system used to record underwater acoustic signals was designed. The device designed allows two hydrophones or other dynamic pressure sensors to be connected, filters out high frequency noise, has a gain that can be independently set for each sensor, and allows two hours of data to be collected. Two versions of the USR were created; one is submersible to a maximum depth of 300 m, and the other, although watertight, is not intended to be fully submersed. Tests were performed in the laboratory using a data acquisition system to send single-frequency sinusoidal voltages directly to the each component. These tests verified that the device performs as well as larger commercially available data acquisition systems, which are not suited for field use. A prototype of the device was used in a case study to investigate the effect of underwater rock blasting on juvenile Chinook salmon and rainbow trout. The case study demonstrated that the device was able to tolerate being operated in harsh environments, making it a valuable tool for collecting field measurements.

Martinez, Jayson J.; Myers, Joshua R.; Carlson, Thomas J.; Deng, Zhiqun; Rohrer, John S.; Caviggia, Kurt A.; Woodley, Christa M.; Weiland, Mark A.

2011-09-01T23:59:59.000Z

18

Design and implementation of an underwater sound recording device  

SciTech Connect

The purpose of this study was to design and build two versions of an underwater sound recording device. The device designed is referred to as the Underwater Sound Recorder (USR), which can be connected to one or two hydrophones or other underwater sound sensors. The URS contains a 26 dB preamplifier and a user selectable gain that permits additional amplification of input to the system from 26 dB to 46 dB. Signals within the frequency range up to 15 kHz may be recorded using the USR. Examples of USR applications are monitoring underwater processes that have the potential to create large pressure waves that could potentially harm fish or other aquatic life, such as underwater explosions or pile driving. Additional applications are recording sound generated by vessels or the vocalizations of some marine mammals, such as the calls from many species of whales.

Martinez, Jayson J.; Myers, Joshua R.; Carlson, Thomas J.; Deng, Zhiqun; Rohrer, John S.; Caviggia, Kurt A.

2011-09-19T23:59:59.000Z

19

Design and optimization of actuation mechanisms for rapid skin closure device  

E-Print Network (OSTI)

Innovative mechanism designs were explored for the actuation of critical components in a novel rapid skin closure device used to close long surgical incisions. The rapid skin closure device is designed to speed up the wound ...

Erickson, Andrew T. (Andrew Thomas)

2012-01-01T23:59:59.000Z

20

Investigation of Junction Properties of CdS/CdTe Solar Cells and their Correlation to Device Properties (Presentation)  

DOE Green Energy (OSTI)

The objective of the Junction Studies are: (1) understand the nature of the junction in the CdTe/CdS device; (2) correlate the device fabrication parameters to the junction formation; and (3) develop a self consistent device model to explain the device properties. Detailed analysis of CdS/CdTe and SnO{sub 2}/CdTe devices prepared using CSS CdTe is discussed.

Dhere, R. G.; Zhang, Y.; Romero, M. J.; Asher, S. E.; Young, M.; To, B.; Noufi, R.; Gessert, T. A.

2008-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Design of regulated velocity flow assurance device for petroleum industry  

E-Print Network (OSTI)

The petroleum industry faces problems in transportation of crude petroleum be- cause of the deposition of paraffins, hydrates and asphaltenes on the insides of the pipeline. These are conventionally removed using either chemical inhibitors or mechani- cal devices, called pigs, which travel through the pipeline and mechanically scrape away the deposits. These pigs are propelled by the pipeline product itself and hence travel at the same velocity as the product. Research has indicated that cleaning would be better if the pigs are traveling at a relatively constant velocity of around 70% of the product velocity. This research utilizes the concept of regulating the bypass flow velocity in order to maintain the pig velocity. The bypass flow is regulated by the control unit based on the feedback from the turbine flowmeter, which monitors the bypass flow. A motorized butterfly valve is used for actually controlling the bypass flow. In addition to cleaning, the proposed pig utilizes on-board electronics like accelerom- eter and pressure transducers to store the data gathered during the pig run. This data can then be analyzed and the condition of the pipeline predicted. Thus, this research addresses the problem of designing a pig to maintain a constant velocity in order to achieve better cleaning. It also helps gather elementary data that can be used to predict the internal conditions in the pipe.

Yardi, Chaitanya Narendra

2004-12-01T23:59:59.000Z

22

Towards standards in user interface design of networked devices.  

E-Print Network (OSTI)

??Networked appliances have long held promise of making people's lives easier by allowing users complete access over their functionality through an intermediate device such as… (more)

Selimovic, Sanel

2010-01-01T23:59:59.000Z

23

A system theoretic approach to design safety into medical device  

E-Print Network (OSTI)

The goal of this thesis is to investigate and demonstrate the application of a systems approach to medical device safety in China. Professor Leveson has developed an accident modeling framework called STAMP (Systems Theoretic ...

Song, Qingyang S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

24

High voltage design structure for high temperature superconducting device  

DOE Patents (OSTI)

In accordance with the present invention, modular corona shields are employed in a HTS device to reduce the electric field surrounding the HTS device. In a exemplary embodiment a fault current limiter module in the insulation region of a cryogenic cooling system has at least one fault current limiter set which employs a first corona shield disposed along the top portion of the fault current limiter set and is electrically coupled to the fault current limiter set. A second corona shield is disposed along the bottom portion of the fault current limiter set and is electrically coupled to the fault current limiter set. An insulation barrier is disposed within the insulation region along at least one side of the fault current limiter set. The first corona shield and the second corona shield act together to reduce the electric field surrounding the fault limiter set when voltage is applied to the fault limiter set.

Tekletsadik, Kasegn D. (Rexford, NY)

2008-05-20T23:59:59.000Z

25

Property:Designed to Operate with Shore Connection? | Open Energy...  

Open Energy Info (EERE)

Connection?" Showing 1 page using this property. M MHK TechnologiesVerdant-Kinetic Hydropower System + No + Retrieved from "http:en.openei.orgwindex.php?titleProperty:Design...

26

Measurement and device design of left-handed metamaterials  

E-Print Network (OSTI)

The properties of a variety of left-handed metamaterial (LHM) structures are analyzed and measured to verify consistent behavior between theory an measurements. The structures are simulated using a commercial software ...

Thomas Zachary M. (Zachary Michael)

2005-01-01T23:59:59.000Z

27

Geometric and biomechanical analysis for computer-aided design of assistive medical devices  

Science Conference Proceedings (OSTI)

This paper presents geometric and biomechanical analysis for designing elastic braces used to restrict the motion of injured joints. Towards the ultimate goal of the brace research, which is to design custom-made braces of the stiffness prescribed by ... Keywords: Assisitve medical device design, Biomechanics, Mesh simplification, Strain energy, Strain energy density function, Surface parametrization

Taeseung D. Yoo; Eunyoung Kim; JungHyun Han; Daniel K. Bogen

2005-12-01T23:59:59.000Z

28

Design and control of a self-sensing piezoelectric reticle assist device  

E-Print Network (OSTI)

This thesis presents the design and control techniques of a device for managing the inertial loads on photoreticle of lithography scanners. Reticle slip, resulting from large inertial loads, is a factor limiting the ...

Amin-Shahidi, Darya

2013-01-01T23:59:59.000Z

29

Photonic density of states maps for design of photonic crystal devices  

E-Print Network (OSTI)

In this work, it has been investigated whether photonic density of states maps can be applied to the design of photonic crystal-based devices. For this reason, comparison between photonic density of states maps and transmittance maps was carried out. Results of comparison show full correspondence between these characteristics. Photonic density of states maps appear to be preferable for the design of photonic crystal devices, than photonic band gap maps presented earlier and than transmittance maps shown in the paper.

Sukhoivanov, I A; Lucio, J A Andrade; Mendez, E Alvarado; Trejo-Duran, M; Torres-Cisneros, M; 10.1016/j.mejo.2007.07.091

2010-01-01T23:59:59.000Z

30

Ultrafast nonlinear optical properties of passive and active semiconductor devices  

E-Print Network (OSTI)

Nonlinear optical properties and ultrafast carrier dynamics of slab-coupled optical waveguide amplifiers, silicon nanowaveguides, and III-V semiconductor saturable Bragg reflectors are studied. The limits imposed by two ...

Motamedi, Ali Reza

2011-01-01T23:59:59.000Z

31

Measurement of bidirectional optical properties of complex shading devices  

SciTech Connect

A new method of predicting the solar heat gain through complex fenestration systems involving nonspecular layers such as shades or blinds has been examined in a project jointly sponsored by ASHRAE and DOE. In this method, a scanning radiometer is used to measure the bidirectional radiative transmittance and reflectance of each layer of a fenestration system. The properties of systems containing these layers are then built up computationally from the measured layer properties using a transmission/multiple-reflection calculation. The calculation produces the total directional-hemispherical transmittance of the fenestration system and the layer-by-layer absorptances. These properties are in turn combined with layer-specific measurements of the inward-flowing fractions of absorbed solar energy to produce the overall solar heat gain coefficient. This paper describes the method of measuring the spatially averaged bidirectional optical properties using an automated, large-sample gonioradiometer/photometer, termed a ``Scanning Radiometer.`` Property measurements are presented for one of the most optically complex systems in common use, a venetian blind. These measurements will form the basis for optical system calculations used to test the method of determining performance.

Klems, J.H.; Warner, J.L.

1995-01-01T23:59:59.000Z

32

Energy conscious factory method design pattern for mobile devices with C# and intermediate language  

Science Conference Proceedings (OSTI)

Design Patterns have gained more and more acceptances since their emerging in software development world last decade and become another de facto standard of essential knowledge for Object-Oriented Programming developers nowadays. Their target usage, ... Keywords: design patterns, factory method pattern, low power consumption, object oriented programming, power conscious system, software for mobile devices

Kayun Chantarasathaporn; Chonawat Srisa-an

2006-10-01T23:59:59.000Z

33

A hybrid evolutionary programming approach for optimal worst case tolerance design of magnetic devices  

Science Conference Proceedings (OSTI)

This paper presents a hybrid evolutionary programming approach to solve the worst case tolerance design problem (WCTDP) in magnetic devices. The hybrid algorithm is formed by a basic evolutionary programming approach, mixed with a gradient-guided local ... Keywords: Evolutionary programming, Hybrid algorithms, Tolerance analysis, Tolerance design

Sancho Salcedo-Sanz; Angel M. PéRez-Bellido; Emilio G. Ortiz-GarcíA; Jose A. Portilla-Figueras; Silvia JiméNez-FernáNdez

2012-08-01T23:59:59.000Z

34

Automated Recurrent Neural Network Design of a Neural Controller in a Custom Power Device  

Science Conference Proceedings (OSTI)

A general purpose implementation of the Tabu Search metaheuristic, called Universal Tabu Search, is used to optimally design a Locally Recurrent Neural Network architecture. Indeed, the design of a neural network is a tedious and time consuming trial ... Keywords: custom power protection device, neural controller, recurrent neural networks, universal Tabu Search

B. Cannas; G. Celli; A. Fanni; F. Pilo

2001-05-01T23:59:59.000Z

35

Aerodynamic Design Criteria for Class 8 Heavy Vehicles Trailer Base Devices to Attain Optimum Performance  

SciTech Connect

Lawrence Livermore National Laboratory (LLNL) as part of its Department of Energy (DOE), Energy Efficiency and Renewable Energy (EERE), and Vehicle Technologies Program (VTP) effort has investigated class 8 tractor-trailer aerodynamics for many years. This effort has identified many drag producing flow structures around the heavy vehicles and also has designed and tested many new active and passive drag reduction techniques and concepts for significant on the road fuel economy improvements. As part of this effort a database of experimental, computational, and conceptual design for aerodynamic drag reduction devices has been established. The objective of this report is to provide design guidance for trailer base devices to improve their aerodynamic performance. These devices are commonly referred to as boattails, base flaps, tail devices, and etc. The information provided here is based on past research and our most recent full-scale experimental investigations in collaboration with Navistar Inc. Additional supporting data from LLNL/Navistar wind tunnel, track test, and on the road test will be published soon. The trailer base devices can be identified by 4 flat panels that are attached to the rear edges of the trailer base to form a closed cavity. These devices have been engineered in many different forms such as, inflatable and non-inflatable, 3 and 4-sided, closed and open cavity, and etc. The following is an in-depth discussion with some recommendations, based on existing data and current research activities, of changes that could be made to these devices to improve their aerodynamic performance. There are 6 primary factors that could influence the aerodynamic performance of trailer base devices: (1) Deflection angle; (2) Boattail length; (3) Sealing of edges and corners; (4) 3 versus 4-sided, Position of the 4th plate; (5) Boattail vertical extension, Skirt - boattail transition; and (6) Closed versus open cavity.

Salari, K; Ortega, J

2010-12-13T23:59:59.000Z

36

Properties of fiber composites for advanced flywheel energy storage devices  

DOE Green Energy (OSTI)

The performance of commercial high-performance fibers is examined for application to flywheel power supplies. It is shown that actual delivered performance depends on multiple factors such as inherent fiber strength, strength translation and stress-rupture lifetime. Experimental results for recent stress-rupture studies of carbon fibers will be presented and compared with other candidate reinforcement materials. Based on an evaluation of all of the performance factors, it is concluded that carbon fibers are preferred for highest performance and E-glass fibers for lowest cost. The inferior performance of the low-cost E-glass fibers can be improved to some extent by retarding the stress-corrosion of the material due to moisture and practical approaches to mitigating this corrosion are discussed. Many flywheel designs are limited not by fiber failure, but by matrix-dominated failure modes. Unfortunately, very few experimental results for stress-rupture under transverse tensile loading are available. As a consequence, significant efforts are made in flywheel design to avoid generating any transverse tensile stresses. Recent results for stress-rupture of a carbon fiber/epoxy composite under transverse tensile load reveal that these materials are surprisingly durable under the transverse loading condition and that some radial tensile stress could be tolerated in flywheel applications.

DeTeresa, S J; Groves, S E

2001-01-12T23:59:59.000Z

37

Design and Fabrication of a Device for Studying Unstable Grasp Mechanics J. M. Inouye1  

E-Print Network (OSTI)

grasp reveals that SDN may not explain all of the complex, stochastic fluctuations of fingertip forceDesign and Fabrication of a Device for Studying Unstable Grasp Mechanics J. M. Inouye1 , K. Rácz1 , F. J. Valero-Cuevas1,2 1 Department of Biomedical Engineering, USC, Los Angeles, CA, jinouye

Valero-Cuevas, Francisco

38

Design, testing and optimization of a microfluidic device for capture and concentration of bacteria  

E-Print Network (OSTI)

Effective detection of bacterial pathogens in large sample volumes is a challenging problem. Pre-concentration routines currently in practice before the actual detection process are cumbersome and hard to automate. An effort is made to address the problem of volume discrepancy between day-to-day samples and the concentrated samples needed for analysis. Principles of conceptual design are used in formulating the �Need Statement�, �Function Structure� and in identifying the �Critical Design Parameters� and �Design Constraints�. Electrokinetic phenomena are used to exploit the surface charges on bacteria. Electrophoresis is used to transport the bacteria to electrode surface and �Electrostatic trapping� is then used to capture these microbes on the electrode surface. The captured microbes can then be concentrated in a concentrator unit. A prototype microfluidic device is fabricated for showing the proof of concept. Optimization is done to minimize hydraulic power consumption and wetted volume. Observations from the initial prototype device along with the optimization results are used in building a new prototype device. Operation of this device is demonstrated by capture of bacteria from flow. Qualitative studies are conducted and preliminary quantification is also done.

Cherla, Srinivas

2005-08-01T23:59:59.000Z

39

Lumped and Distributed Parameter SPICE Models of TE Devices Considering Temperature Dependent Material Properties  

E-Print Network (OSTI)

Based on simplified one-dimensional steady-state analysis of thermoelectric phenomena and on analogies between thermal and electrical domains, we propose both lumped and distributed parameter electrical models for thermoelectric devices. For lumped parameter models, constant values for material properties are extracted from polynomial fit curves evaluated at different module temperatures (hot side, cold side, average, and mean module temperature). For the case of distributed parameter models, material properties are calculated according to the mean temperature at each segment of a sectioned device. A couple of important advantages of the presented models are that temperature dependence of material properties is considered and that they can be easily simulated using an electronic simulation tool such as SPICE. Comparisons are made between SPICE simulations for a single-pellet module using the proposed models and with numerical simulations carried out with Mathematica software. Results illustrate accuracy of th...

Mitrani, D; Turo, A; García, M J; Chávez, J A

2008-01-01T23:59:59.000Z

40

The design of a controllable energy recovery device for solar powered reverse osmosis desalination with experimental validation  

E-Print Network (OSTI)

The purpose of this thesis is to design and validate a controllable energy recovery device with application to photovoltaic powered reverse osmosis (PVRO). The energy consumption of a reverse osmosis plant depends significantly ...

Reed, Elizabeth Anne, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Lumped and Distributed Parameter SPICE Models of TE Devices Considering Temperature Dependent Material Properties  

E-Print Network (OSTI)

Based on simplified one-dimensional steady-state analysis of thermoelectric phenomena and on analogies between thermal and electrical domains, we propose both lumped and distributed parameter electrical models for thermoelectric devices. For lumped parameter models, constant values for material properties are extracted from polynomial fit curves evaluated at different module temperatures (hot side, cold side, average, and mean module temperature). For the case of distributed parameter models, material properties are calculated according to the mean temperature at each segment of a sectioned device. A couple of important advantages of the presented models are that temperature dependence of material properties is considered and that they can be easily simulated using an electronic simulation tool such as SPICE. Comparisons are made between SPICE simulations for a single-pellet module using the proposed models and with numerical simulations carried out with Mathematica software. Results illustrate accuracy of the distributed parameter models and show how inappropriate is to assume, in some cases, constant material parameters for an entire thermoelectric element.

D. Mitrani; J. Salazar; A. Turo; M. J. García; J. A. Chávez

2008-01-07T23:59:59.000Z

42

How Does the User Interface Design of Mobile Devices Influence the Social Impact of Mobile Communication?  

E-Print Network (OSTI)

This paper describes how user interface design of mobile devices interacts with the social impact of mobile communication. Social impact is defined as the influence on relationships between social actors. In the light of mobile communication, one can distinguish among at least three relevant classes of relationships: human-machine relationships, interpersonal relationships between co-located persons, and machine mediated human-human relationships. The characteristics of each class are described, which lead to 13 statements about which social phenomena are important to this specific relationship, e.g., Being aware of the social context of the other party before initiating a communication and during the act of communication might have a significant positive social impact on the interaction outcome. Each statement is followed by a set of user interface design suggestions about how mobile communication user interfaces should be built in order to support the statement, or not to violate the social phenomena regarding a relationship described in the statement, or to make the social impact of mobile communication positive. Adding up across all three classes, 28 concrete user interface design suggestions are described that influence the social impact of mobile communication. 2. Preamble I define the term social impact pragmatically as the influence on relationships between social actors. In the context of mobile communication, there are three relevant classes of relationships: 1. human-machine relationships 2. interpersonal relationships among co-located persons 3. machine mediated human-human relationships. More specifically, the user interface design of a mobile device impacts these relationships by modifying social attributions, human behavior, and interaction outcome. In a...

Stefan Marti

2002-01-01T23:59:59.000Z

43

Simultaneous process and molecular design/selection through property integration  

E-Print Network (OSTI)

The overall purpose of this work is to develop systematic methodology for the simultaneous design and selection of processes and molecules (materials). A propertybased approach is used to develop an interface between process and molecular design/selection. In particular, we focus on the problem of designing/selecting materials that are used in the context of a recycle/reuse system of process streams and for energy applications. Fresh and recycled resources (e.g., process streams, biomass, solvents, etc.) are integrated with the process to satisfy property-based constraints for the process units and to optimize the usage of the resources and the design of the process. For molecular design, property operators for mixing streams and group contribution methods (GCM) are used to consistently represent process sources, sinks, and different functional groups on the same property-base. For material selection, property based criteria (e.g., heat rate, high heating value, etc.) are used to bridge the process with material. This consistent representation enables the definition of the optimization problem formulation for product design while taking into consideration the recycle/reuse of process streams. In particular, this dissertation addresses four integrated topics. First, a new graphical approach for material targeting and substitution is presented. This graphical approach offers initial solutions and valuable insights that can be effectively used for conceptual design and for initializing mathematical programming techniques. Second, a mathematical optimization approach is developed along with a decomposition-based global solution procedure for material targeting and substitution using property integration. Third, an implementation approach is developed to synthesize the details of a recycle/reuse process network design based on the targets identified through the graphical and/or the mathematical approaches. Finally, property integration techniques are extended to a broader scope which deals with the lifecycle analysis of biomass utilization for energy generation. A generic model is developed to optimize the types and quantities of the feedstocks used to optimize power generation with biomass-fossil fuel co-fed system. Important issues of biomass growth, harvesting, transportation, processing, and disposal are included. Property-based tracking and constraints are included in the analysis. Also, the issues associated with greenhouse gas (GHG) emissions are incorporated in the analysis. Case studies are solved throughout the dissertation to demonstrate the applicability of the developed procedures.

Qin, Xiaoyun

2006-12-01T23:59:59.000Z

44

Dynamic Diamond Anvil Cell (dDAC): A novel device for studying the dynamic-pressure properties of materials  

SciTech Connect

We have developed a unique device, a dynamic diamond anvil cell (dDAC), which repetitively applies a time-dependent load/pressure profile to a sample. This capability allows studies of the kinetics of phase transitions and metastable phases at compression (strain) rates of up to 500 GPa/sec ({approx}0.16 s{sup -1} for a metal). Our approach adapts electromechanical piezoelectric actuators to a conventional diamond anvil cell design, which enables precise specification and control of a time-dependent applied load/pressure. Existing DAC instrumentation and experimental techniques are easily adapted to the dDAC to measure the properties of a sample under the varying load/pressure conditions. This capability addresses the sparsely studied regime of dynamic phenomena between static research (diamond anvil cells and large volume presses) and dynamic shock-driven experiments (gas guns, explosive and laser shock). We present an overview of a variety of experimental measurements that can be made with this device.

Evans, W J; Yoo, C; Lee, G W; Cynn, H; Lipp, M J; Visbeck, K

2007-02-23T23:59:59.000Z

45

Microsoft Word - Final ROD re Design Property Acq.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Northeast Oregon Hatchery Program Northeast Oregon Hatchery Program Grande Ronde - Imnaha Spring Chinook Hatchery Project RECORD OF DECISION Regarding Final Design and Property Acquisition Summary. As Administrator of the Bonneville Power Administration (BPA), I have decided to fund the final design and property acquisition portions of the Proposed Action of the Grande Ronde - Imnaha Spring Chinook Hatchery Project in Northeast Oregon, as well as additional valuation studies recommended by the Northwest Power and Conservation Council (Council). I am not, at this time, making a decision to fund the construction of the project itself, nor to fund post-construction operations, facilities maintenance, or monitoring and evaluation of the project. Those decisions will follow after the design and additional cost evaluation. Nevertheless, I did

46

Design Of A Hybrid Jet Impingement / Microchannel Cooling Device For Densely Packed PV Cells Under High Concentration  

Science Conference Proceedings (OSTI)

A hybrid jet impingement / microchannel cooling scheme was designed and applied to densely packed PV cells under high concentration. An experimental study allows validating the principles of the design and confirming its applicability to the cited system. In order to study the characteristics of the device in a wide range of conditions

Jérôme Barrau; Joan Rosell; Manel Ibañez

2010-01-01T23:59:59.000Z

47

Design and fabrication of 6.1-.ANG. family semiconductor devices using semi-insulating A1Sb substrate  

DOE Patents (OSTI)

For the first time, an aluminum antimonide (AlSb) single crystal substrate is utilized to lattice-match to overlying semiconductor layers. The AlSb substrate establishes a new design and fabrication approach to construct high-speed, low-power electronic devices while establishing inter-device isolation. Such lattice matching between the substrate and overlying semiconductor layers minimizes the formation of defects, such as threaded dislocations, which can decrease the production yield and operational life-time of 6.1-.ANG. family heterostructure devices.

Sherohman, John W. (Livermore, CA); Coombs, III, Arthur W. (Patterson, CA); Yee, Jick Hong (Livermore, CA); Wu, Kuang Jen J. (Cupertino, CA)

2007-05-29T23:59:59.000Z

48

Nano-Optical Device Design with the Use of Open-Source Parallel Version FDTD and Commercial Finite Element Package  

E-Print Network (OSTI)

In this paper, the implementation of open-source parallel-version FDTD (Finite-Difference-Time-Domain) software, MEEP, on Texas A&M supercomputers and commercial finite element package, COMSOL, on a single workstation for the design design of nano-optical device is reported. The the computer architecture and performance of both numerical methods on the same design will be briefly described.

Liu, Y

2013-01-01T23:59:59.000Z

49

MHD equilibrium properties of tokamak fusion reactor designs  

SciTech Connect

The equilibrium properties of several Tokamak Reactor Designs are analyzed and compared for varying pressure and current profiles using the Princeton Equilibrium Code. It is found that the UWMAK configuration has a broader range of equilibria than the Princeton Reference Design configuration, but that the safety factor on axis is less than unity for peaked current distributions. The Argonne Experimental Power Reactor has a satisfactory range of equilibria, but a means of limiting or diverting the plasma has not yet been proposed, and this may substantially change the results obtained. (auth)

Todd, A. M.M.; Gralnick, S. L.; Dalhed, H. E.

1976-01-01T23:59:59.000Z

50

Subsetting Behavioral Intellectual Property for Low Power ASIP Design  

E-Print Network (OSTI)

Power consumption is an increasingly important consideration in the design of mixed hardware/software systems. This work defines the notion of instruction subsetting and explores its use as a means of reducing power consumption from the system level of design. Instruction subsetting is defined as creating an application specific instruction set processor from a more general processor, such as a DSP. Although not as effective as an ASIC solution, instruction subsetting provides much of the power savings while maintaining some level of programmability. Beyond energy savings, instruction subsetting also offers the opportunity to reduce the design cycle through the reuse of existing processor intellectual property including behavioral and structural designs, hardware simulators, application code, and compilers. We synthesized 9 ASIPs through place and route and found that a poorly chosen instruction set may consume more than 4 times the energy of an ASIP with a proper instruction set choice. This finding will allow designers to consider another set of trade-offs in their hardware/software design space exploration.

William E. Dougherty; David J. Pursley; Donald E. Thomas

1999-01-01T23:59:59.000Z

51

Performance-Driven Microfabrication-Oriented Methodology for MEMS Conceptual Design with Application in Microfluidic Device Design  

E-Print Network (OSTI)

Performance and manufacturability are two important issues that must be taken into account during MEMS design. Existing MEMS design models or systems follow a process-driven design paradigm, that is, design starts from the ...

Deng, Y.-M.

52

PCB Origami: A Material-Based Design Approach to Computer-Aided Foldable Electronic Devices  

E-Print Network (OSTI)

that contain electronic functions. Conductivity, output devices (such as Light Emitting Diodes functions such as light and sound performance. In addition, conductivity, LED (Light Emitting Diodes) output

Demaine, Erik

53

Design and in vitro development of resorbable urologic drug delivery device  

E-Print Network (OSTI)

Implantable, controlled release drug delivery devices offer several advantages over systemic oral administration routes and immediate drug release treatments including direct therapy to target organ, more continuous ...

Tobias, Irene S. (Irene Sophie)

2008-01-01T23:59:59.000Z

54

Mechanical design of PlayLamp : a minimally intrusive device for recording the behavior of children at-risk of developmental disorders  

E-Print Network (OSTI)

This thesis paper documents the design process, decisions, and outcomes of the design of the physical form factor of PlayLamp, a device for video and audio recording the development of children at-risk of having developmental ...

Steger, Stephen Andrew

2008-01-01T23:59:59.000Z

55

Design and characterization of a compact voice coil for a needle-free injection device  

E-Print Network (OSTI)

Conventional needle-free injection (NFI) devices are driven by a pressure source generated by either a compressed spring mechanism or compressed inert gas, which have fixed injection (pressure versus time) profiles. The ...

Lui, Diana, S.B. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

56

The Electric and Optical Properties of Doped Small Molecular Organic Light-Emitting Devices  

SciTech Connect

Organic light-emitting devices (OLEDs) constitute a new and exciting emissive display technology. In general, the basic OLED structure consists of a stack of fluorescent organic layers sandwiched between a transparent conducting-anode and metallic cathode. When an appropriate bias is applied to the device, holes are injected from the anode and electrons from the cathode; some of the recombination events between the holes and electrons result in electroluminescence (EL). Until now, most of the efforts in developing OLEDs have focused on display applications, hence on devices within the visible range. However some organic devices have been developed for ultraviolet or infrared emission. Various aspects of the device physics of doped small molecular OLEDs were described and discussed. The doping layer thickness and concentration were varied systematically to study their effects on device performances, energy transfer, and turn-off dynamics. Low-energy-gap DCM2 guest molecules, in either {alpha}-NPD or DPVBi host layers, are optically efficient fluorophores but also generate deep carrier trap-sites. Since their traps reduce the carrier mobility, the current density decreases with increased doping concentration. At the same time, due to efficient energy transfer, the quantum efficiency of the devices is improved by light doping or thin doping thickness, in comparison with the undoped neat devices. However, heavy doping induces concentration quenching effects. Thus, the doping concentration and doping thickness may be optimized for best performance.

Kwang-Ohk Cheon

2003-08-05T23:59:59.000Z

57

Energy consumption anatomy of 802.11 devices and its implication on modeling and design  

Science Conference Proceedings (OSTI)

A thorough understanding of the power consumption behavior of real world wireless devices is of paramount importance to ground energy-efficient protocols and optimizations on realistic and accurate energy models. This paper provides an in-depth ... Keywords: 802.11, cross-factor, energy consumption anatomy, energy measurements, wlan

Andres Garcia-Saavedra; Pablo Serrano; Albert Banchs; Giuseppe Bianchi

2012-12-01T23:59:59.000Z

58

A Multimodal interface device for online board games designed for sight-impaired people  

Science Conference Proceedings (OSTI)

Online games between remote opponents playing over computer networks are becoming a common activity of everyday life. However, computer interfaces for board games are usually based on the visual channel. For example, they require players to check their ... Keywords: blindness, board games, deafblindness, haptic device, multimodal feedback

Nicholas Caporusso; Lusine Mkrtchyan; Leonardo Badia

2010-03-01T23:59:59.000Z

59

Low power interconnect design for fpgas with bidirectional wiring using nanocrystal floating gate devices (abstract only)  

Science Conference Proceedings (OSTI)

New architectures for the switch box and connection block are proposed for use in an energy efficient field programmable gate array (FPGA) with bidirectional wiring. Power-hungry SRAMs are replaced by non-volatile nanocrystal floating gate (NCFG) devices ... Keywords: bidirectional wiring, connection block, floating gate, fpga, high speed, low power, nanocrystal, switch box

Daniel Schinke; Wallace Shep Pitts; Neil Di Spigna; Paul Franzon

2011-02-01T23:59:59.000Z

60

Modeling and Layout Optimization of VLSI Devices and Interconnects In Deep Submicron Design  

E-Print Network (OSTI)

. Jeppson, "CMOS Circuit Speed and Buffer Optimization," IEEE Trans. on Computer-Aided Design, 1987, pp. 270

Cong, Jason "Jingsheng"

Note: This page contains sample records for the topic "device design properties" 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

Superconductive devices  

Science Conference Proceedings (OSTI)

Over the past 2 years there have been several suggestions advanced for computer devices which utilize the unique properties of superconductors. Some of these take advantage of the strong nonlinear dependence of resistance on magnetic field which makes ...

Albert E. Slade; Howard McMahon

1958-05-01T23:59:59.000Z

62

Optical properties of thin semiconductor device structures with reflective back-surface layers  

DOE Green Energy (OSTI)

Ultrathin semiconductor device structures incorporating reflective internal or back surface layers have been investigated recently as a means of improving photon recuperation, eliminating losses associated with free carrier absorption in conductive substrates and increasing the above bandgap optical thickness of thermophotovoltaic device structures. However, optical losses in the form of resonance absorptions in these ultrathin devices have been observed. This behavior in cells incorporating epitaxially grown FeAl layers and in devices that lack a substrate but have a back-surface reflector (BSR) at the rear of the active layers has been studied experimentally and modeled effectively. For thermophotovoltaic devices, these resonances represent a significant loss mechanism since the wavelengths at which they occur are defined by the active TPV cell thickness of {approximately} 2--5 microns and are in a spectral range of significant energy content for thermal radiators. This study demonstrates that ultrathin semiconductor structures that are clad by such highly reflective layers or by films with largely different indices of refraction display resonance absorptions that can only be overcome through the implementation of some external spectral control strategy. Effective broadband, below-bandgap spectral control using a back-surface reflector is only achievable using a large separation between the TPV active layers and the back-surface reflector.

Clevenger, M.B.; Murray, C.S. [Westinghouse Electric Co., West Mifflin, PA (United States); Ringel, S.A.; Sachs, R.N.; Qin, L. [Ohio State Univ., Columbus, OH (United States). Dept. of Electrical Engineering; Charache, G.W.; Depoy, D.M. [Lockheed Martin, Inc., Schenectady, NY (United States)

1998-11-01T23:59:59.000Z

63

Designing new electrode materials for energy devices by integrating ab initio computations with experiments  

E-Print Network (OSTI)

Utilization of Ni2+/Ni4+ double redox couple in electrochemical reactions has been tested as a way to gauge useful properties such as high capacity in electrode materials. The feasibility of a Ni2+/Ni4+ active redox couple ...

Kang, Kisuk

2006-01-01T23:59:59.000Z

64

Investigation of Junction Properties in CdS/CdTe Solar Cells and Their Correlation to Device Properties: Preprint  

DOE Green Energy (OSTI)

Secondary-ion mass spectrometry analysis of the CdS/CdTe interface shows that S diffusion in CdTe increases with substrate temperature and CdCl2 heat treatment. There is also an accumulation of Cl at the interface for CdCl2-treated samples. Modulated photo-reflectance studies shows that devices with CdCl2 heat treatment and open-circuit voltage (Voc) of 835 mV have a distinct high electric-field region in the layer with bandgap of 1.45 eV. Electron-beam induced current measurements reveal a one-sided junction for high Voc devices. The nature of the junction changes with processing. For heterojunction devices, the depletion region includes the highly defective CdS/CdTe interface, which would increase the recombination current and consequently the dark current, leading to lower Voc. In the case of CdCl2-treated cells, the n+-p junction and its high electric-field results in the junction between structurally compatible CdTe and the Te-rich CdSTe alloy, and thus, in higher Voc.

Dhere, R. G.; Zhang, Y.; Romero, M. J.; Asher, S. E.; Young, M.; To, B.; Noufi, R.; Gessert, T. A.

2008-05-01T23:59:59.000Z

65

Fusion devices  

SciTech Connect

Three types of thermonuclear fusion devices currently under development are reviewed for an electric utilities management audience. Overall design features of laser fusion, tokamak, and magnetic mirror type reactors are described and illustrated. Thrusts and trends in current research on these devices that promise to improve performance are briefly reviewed. Twenty photographs and drawings are included. (RME)

Fowler, T.K.

1977-10-11T23:59:59.000Z

66

Device for plasma confinement and heating by high currents and nonclassical plasma transport properties  

DOE Patents (OSTI)

A toroidal plasma containment device having means for inducing high total plasma currents and current densities and at the same time emhanced plasma heating, strong magnetic confinement, high energy density containment, magnetic modulation, microwaveinduced heating, and diagnostic accessibility is described. (Official Gazette)

Coppi, B.; Montgomery, D.B.

1973-12-11T23:59:59.000Z

67

Design and development of a wheelchair-accessible, residential refrigeration device: A Case Study of a Technical Assistance Project administered through the  

E-Print Network (OSTI)

Design and development of a wheelchair-accessible, residential refrigeration device: A Case Study Refrigeration unit with transparent doors US Patent. D517572 - Filed Dec 6, 2004 United States Design Patent perishable items from a conventional refrigerator, Dr. John Imre, Chippewa Falls, WI, produced a design and

Wu, Mingshen

68

Conditioning planaria : device design based on an autonomous, large-scale parallel approach  

E-Print Network (OSTI)

Current behavioral research is conducted on planaria that have been conditioned manually, one at a time by a person. In an attempt to instrument at an organism level, a design for an environment that automatically conditions ...

Wendell, Dawn M. (Dawn Marie), 1983-

2004-01-01T23:59:59.000Z

69

Man-portable power generation devices : product design and supporting algorithms  

E-Print Network (OSTI)

A methodology for the optimal design and operation of microfabricated fuel cell systems is proposed and algorithms for relevant optimization problems are developed. The methodology relies on modeling, simulation and ...

Mitsos, Alexander

2006-01-01T23:59:59.000Z

70

Applying engineering principles to the design and construction of transcriptional devices  

E-Print Network (OSTI)

The aim of this thesis is to consider how fundamental engineering principles might best be applied to the design and construction of engineered biological systems. I begin by applying these principles to a key application ...

Shetty, Reshma P. (Reshma Padmini)

2008-01-01T23:59:59.000Z

71

Applying engineering principles to the design and construction of transcriptional devices  

E-Print Network (OSTI)

The aim of this thesis is to consider how fundamental engineering principles might best be applied to the design and construction of engineered biological systems. I begin by applying these principles to a key application ...

Shetty, Reshma P

2008-05-27T23:59:59.000Z

72

Applying mobile device soft keyboards to collaborative multitouch tabletop displays: design and evaluation  

Science Conference Proceedings (OSTI)

We present an evaluation of text entry methods for tabletop displays given small display space allocations, an increasingly important design constraint as tabletops become collaborative platforms. Small space is already a requirement of mobile text entry ... Keywords: collaboration, computer-supported collaborative work (CSCW), tabletop displays, text entry

Sungahn Ko; KyungTae Kim; Tejas Kulkarni; Niklas Elmqvist

2011-11-01T23:59:59.000Z

73

System design and simulation of constant temperature box using semiconductor refrigeration device  

Science Conference Proceedings (OSTI)

This paper presents the variation law of temperature in three-dimensional space, which is cooled by the refrigeration provided by the cold side of a semiconductor. The mathematical model of the temperature field of the semiconductor refrigeration ... Keywords: constant temperature box, forced convection, mathematical modelling, numerical simulation, semiconductor refrigeration, system design

Hui Zhang; Kuang-Chao Fan; Jun Wang

2010-03-01T23:59:59.000Z

74

Design of a wideband multi-standard antenna switch for wireless communication devices  

Science Conference Proceedings (OSTI)

A wideband Low Power Single Pole 6-Throw (SP6T) antenna switch has been designed for GSM/DCS/802.11b mobile standards using a newly improved architecture and fabricated using a pseudomorphic depletion mode 0.18@mm HEMT GaAs process. The switch exhibits ... Keywords: Antenna switch, GaAs, MMIC, Mobile telecommunications, Wideband, pHEMT transistors

Vlad Marian; Jacques Verdier; Bruno Allard; Christian Vollaire

2011-05-01T23:59:59.000Z

75

Designing Security Properties-Centric Communication Protocols using a Component-Based Approach  

Science Conference Proceedings (OSTI)

Numerous communication protocols have been designed offering a set of security properties through the use of cryptographic tools to secure electronic document transfer. However, there is no clear match between the tools used and security properties they ... Keywords: Communication Protocols, Component-based Approach, Electronic Document Transfer, Security Components, Security Properties

N. Nobelis; K. Boudaoud; C. Delettre; M. Riveill

2012-01-01T23:59:59.000Z

76

The investigation of the structural properties of machines for the design of secure and trustworthy systems  

Science Conference Proceedings (OSTI)

In this paper, we investigate the problem of designing secure and trustworthy systems based on the notion of attack space. In particular, we consider the study of structural properties of a system at a design or architectural level. This preliminary ... Keywords: attack space, design for trustworthiness, secure systems, structure theory

Edward Jung; Chih-Cheng Hung; Guangzhi Ma; Seonho Choi

2011-11-01T23:59:59.000Z

77

The Hob system for verifying software design properties  

E-Print Network (OSTI)

This dissertation introduces novel techniques for verifying that programs conform to their designs. My Hob system, as described in this dissertation, allows developers to statically ensure that implementations preserve ...

Lam, Patrick, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

78

Cap-and-Trade Properties under Different Scheme Designs  

E-Print Network (OSTI)

This paper examines the key design mechanisms of existing and proposed cap-and-trade markets. First, it is shown that the hybrid systems under investigation (safety-valve with offsets, price floor using a subsidy, price ...

Taschini, Luca

79

Electrochemical device  

DOE Patents (OSTI)

A tunnel protected electrochemical device features channels fluidically communicating between manifold, tunnels and cells. The channels are designed to provide the most efficient use of auxiliary power. The channels have a greater hydraulic pressure drop and electrical resistance than the manifold. This will provide a design with the optimum auxiliary energy requirements.

Grimes, Patrick G. (Westfield, NJ); Einstein, Harry (Springfield, NJ); Bellows, Richard J. (Westfield, NJ)

1988-01-12T23:59:59.000Z

80

Impurities and defects in photovoltaic Si devices: A review  

DOE Green Energy (OSTI)

The performance of commercial photovoltaic Si devices is strongly controlled by the impurities and defects present in the substrates. A well-designed solar cell processing sequence can mitigate their effects to yield high efficiency devices. Such a process-design requires a comprehensive knowledge of the properties of defects, impurities, and impurity-defect interactions that can occur during device processing. This paper reviews the recent understanding of the impurity and defect issues in Si-photovoltaics.

Sopori, B.

1999-11-04T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Comprehensive research on the stability and electronic properties of a-Si:H and a-SiGe:H alloys and devices. Final subcontract report, 10 March 1991--30 August 1994  

DOE Green Energy (OSTI)

This report describes work on the growth of a-Si:H and a-(Si,Ge):H materials and devices using well-controlled growth techniques. The a-Si:H materials were grown at higher temperatures (300{degrees}-375{degrees}C) using electron-cyclotron-resonance (ECR) plasma techniques with a remote H beam. These films have excellent electronic quality and show significant improvements in stability compared with glow-discharge-produced a-Si:H materials. Several problems were encountered during the fabrication of devices in these materials, and we were able to overcome them by a systematic work on buffer layers in these cells. We also studied alternative designs for improving the stability of a-Si:H cells and produced graded-gap a-Si:H cells using glow-discharge that are more stable than comparable standard, ungraded glow discharge devices. Finally, systematic work was done to produce good-quality a-(Si,Ge):H films, using triode radio frequency (RF) glow-discharge with ion bombardment during growth. Diagnostic devices were made using these films, and the properties of the material, such as Urbach energies and hole mobility-lifetime products, were measured in these devices. We found a systematic increase in the Urbach energies, and a corresponding decrease in the hole and electron {mu}{tau} products, as the Ge content of the alloys increases.

Dalal, V. [Iowa State Univ. of Science and Technology, Ames, IA (United States)

1995-04-01T23:59:59.000Z

82

Device For Determining Therophysical Properties Of A Multi-Component Gas At Arbitrary Temperature And Pressure  

DOE Patents (OSTI)

A computer product for determining thermodynamic properties of a natural gas hydrocarbon, when the speed of sound in the gas is known at an arbitrary temperature and pressure. Thus, the known parameters are the sound speed, temperature, pressure, and concentrations of any dilute components of the gas. The method uses a set of reference gases and their calculated density and speed of sound values to estimate the density of the subject gas. Additional calculations can be made to estimate the molecular weight of the subject gas, which can then be used as the basis for mass flow calculations, to determine the speed of sound at standard pressure and temperature, and to determine various thermophysical characteristics of the gas.

Morrow, Thomas B. (San Antonio, TX); Behring, II, Kendricks A. (Gilbert, AZ)

2005-02-01T23:59:59.000Z

83

PLASMA DEVICE  

DOE Patents (OSTI)

A device for producing a confined high temperature plasma is described. In the device the concave inner surface of an outer annular electrode is disposed concentrically about and facing the convex outer face of an inner annular electrode across which electrodes a high potential is applied to produce an electric field there between. Means is provided to create a magnetic field perpendicular to the electric field and a gas is supplied at reduced pressure in the area therebetween. Upon application of the high potential, the gas between the electrodes is ionized, heated, and under the influence of the electric and magnetic fields there is produced a rotating annular plasma disk. The ionized plasma has high dielectric constant properties. The device is useful as a fast discharge rate capacitor, in controlled thermonuclear research, and other high temperature gas applications. (AEC)

Baker, W.R.; Brathenahl, A.; Furth, H.P.

1962-04-10T23:59:59.000Z

84

Evaluation of multi-attribute decision making systems applied during the concept design of new microplasma devices  

Science Conference Proceedings (OSTI)

Various multi-attribute decision making (MADM) systems can be implemented to narrow a field of new concept designs down to those with high likelihoods of surpassing state-of-the-art technologies. This research investigated the conceptual design phase ... Keywords: AHP, Concept design tools, Design process(es), Engineering design, GRA, MADM, Multi-attribute decision making, New product development, Pugh, QFD, UBAF

Elizabeth Lennon, John Farr, Ronald Besser

2013-11-01T23:59:59.000Z

85

Sensor-directed response surface sampling designs for characterizing spatial variation in soil properties  

Science Conference Proceedings (OSTI)

In many applied precision farming applications, remotely sensed survey data are collected specifically because these data correlate well with some soil property of interest. Additionally, a general model for the functional relationship between the soil ... Keywords: Precision agriculture, Response surface design, Salinity, Spatial linear model, Variogram

S. M. Lesch

2005-03-01T23:59:59.000Z

86

Product decomposition using design structure matrix for intellectual property protection in supply chain outsourcing  

Science Conference Proceedings (OSTI)

In global recession, outsourcing becomes a question of survival for most executives who need to restore profitability and growth. One of the critical challenges faced by such decisions is the potential risk of leaking confidential information through ... Keywords: Decision making, Design structure matrix, Intellectual property protection, Risk management, Supplier selection

Xiaoguang Deng; Greg Huet; Suo Tan; CléMent Fortin

2012-08-01T23:59:59.000Z

87

Ceramics for fusion devices  

SciTech Connect

Ceramics are required for a number of applications in fusion devices, among the most critical of which are magnetic coil insulators, windows for RF heating systems, and structural uses. Radiation effects dominate consideration of candidate materials, although good pre-irradiation properties are a requisite. Materials and components can be optimized by careful control of chemical and microstructural content, and application of brittle material design and testing techniques. Future directions for research and development should include further extension of the data base in the areas of electrical, structural, and thermal properties; establishment of a fission neutron/fusion neutron correlation including transmutation gas effects; and development of new materials tailored to meet the specific needs of fusion reactors.

Clinard, F.W. Jr.

1984-01-01T23:59:59.000Z

88

Articulating feedstock delivery device  

DOE Patents (OSTI)

A fully articulable feedstock delivery device that is designed to operate at pressure and temperature extremes. The device incorporates an articulating ball assembly which allows for more accurate delivery of the feedstock to a target location. The device is suitable for a variety of applications including, but not limited to, delivery of feedstock to a high-pressure reaction chamber or process zone.

Jordan, Kevin

2013-11-05T23:59:59.000Z

89

Measuring Devices  

Science Conference Proceedings (OSTI)

... Compressed Natural Gas Retail Motor-Fuel Dispensers; Hydrogen Measuring Devices; Liquefied Petroleum Gas Liquid-Measuring Devices; Loading ...

2010-10-05T23:59:59.000Z

90

Static power conversion techniques for unique energy devices  

E-Print Network (OSTI)

Solar power, fuel cells, and supercapacitors are some hics. of the new energy devices that are being used today in various power applications. The first two of these devices are exciting alternative sources of clean energy. The third device is an important new energy storage device that has some properties of a battery and a capacitor allowing it to be used in applications where attributes of both are needed. To realize the full potential of these energy sources, novel engineering strategies have to be implemented to manage the conversion of power. Since these devices are relatively new and their development is constantly maturing, a introduction to these devices will be a useful to those unfamiliar with the state of the art of solar cells, fuel cells, and supercapacitors. In this paper characteristics of each technology will be reviewed and design consideration will be discussed, and methods of utilizing each of these devices will be offered.

Welch, Richard Andrew

1998-01-01T23:59:59.000Z

91

Structure-property correlations in the design of organic metals and superconductors: An overview  

SciTech Connect

Molecular structure and, more importantly, molecular packing in organic superconducting salts (TMTSF){sub 2}X, {beta}-(BEDT-TTF){sub 2}X and {kappa}-(BEDT-TTF){sub 2}X will be examined in the context of deducing structure-property correlations in these systems. Such an approach has been instrumental in the discovery of superconductivity at 10.4 K in {kappa}-(BEDT-TTF){sub 2}Cu(NCS){sub 2}, and it will continue to serve as an important tool in the rational design of new organic superconductors with even higher superconducting transition temperatures.

Kini, A.M.; Beno, M.A.; Carlson, K.D.; Ferraro, J.R.; Geiser, U.; Schultz, A.J.; Wang, H.H.; Williams, J.M.

1989-01-01T23:59:59.000Z

92

Operated device estimation framework  

E-Print Network (OSTI)

Protective device estimation is a challenging task because there are numerous protective devices present in a typical distribution system. Among various protective devices, auto-reclosers and fuses are the main overcurrent protection on distribution systems. Operation of a protective device in response to a particular fault condition depends upon the protective device’s operating behavior and coordination of various such protective devices. This thesis presents the design and implementation of a protective device estimation algorithm which helps in identifying which protective devices have operated to clear a short circuit condition. The algorithm uses manufacturer’s device details, power quality data measured from substation monitoring devices and power system event features estimated using existing DFA algorithms. The proposed technique can be used to evaluate coordination of these protective devices and helps in locating a fault in a distribution system feeder. This approach is independent of feeder topology and could be readily used for any distribution system. The effectiveness of this algorithm is verified by simulated and actual test data. Suggestions are included for future research and application by electric utilities.

Rengarajan, Janarthanan

2008-12-01T23:59:59.000Z

93

Barrier breaching device  

DOE Patents (OSTI)

A barrier breaching device that is designed primarily for opening holes in interior walls of buildings uses detonating fuse for explosive force. The fuse acts as the ribs or spokes of an umbrella-like device that may be opened up to form a cone. The cone is placed against the wall so that detonating fuse that rings the base of the device and which is ignited by the spoke-like fuses serves to cut a circular hole in the wall.

Honodel, Charles A. (Tracy, CA)

1985-01-01T23:59:59.000Z

94

Barrier breaching device  

DOE Patents (OSTI)

A barrier breaching device that is designed primarily for opening holes in interior walls of buildings uses detonating fuse for explosive force. The fuse acts as the ribs or spokes of an umbrella-like device that may be opened up to form a cone. The cone is placed against the wall so that detonating fuse that rings the base of the device and which is ignited by the spoke-like fuses serves to cut a circular hole in the wall.

Honodel, C.A.

1983-06-01T23:59:59.000Z

95

Improved Gas Sampling Device - Available Technologies - PNNL  

Summary. This is an improved device for gas sampling and analysis in which the design of the device includes features for maximizing the surface area ...

96

Active Terahertz Metamaterial Devices  

NLE Websites -- All DOE Office Websites (Extended Search)

Active Terahertz Metamaterial Devices Active Terahertz Metamaterial Devices Active Terahertz Metamaterial Devices Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Available for thumbnail of Feynman Center (505) 665-9090 Email Active Terahertz Metamaterial Devices Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Each element within an array of metamaterial (MM) elements comprises multiple loops and at least one gap. The MM elements may comprise resonators with conductive loops and insulated gaps, or the inverse in which insulated loops are present with conductive gaps; each providing useful transmissive control properties. The metamaterial elements are fabricated on a semiconducting substrate configured with a

97

Final LDRD report : design and fabrication of advanced device structures for ultra high efficiency solid state lighting.  

SciTech Connect

The goal of this one year LDRD was to improve the overall efficiency of InGaN LEDs by improving the extraction of light from the semiconductor chip. InGaN LEDs are currently the most promising technology for producing high efficiency blue and green semiconductor light emitters. Improving the efficiency of InGaN LEDs will enable a more rapid adoption of semiconductor based lighting. In this LDRD, we proposed to develop photonic structures to improve light extraction from nitride-based light emitting diodes (LEDs). While many advanced device geometries were considered for this work, we focused on the use of a photonic crystal for improved light extraction. Although resonant cavity LEDs and other advanced structures certainly have the potential to improve light extraction, the photonic crystal approach showed the most promise in the early stages of this short program. The photonic crystal (PX)-LED developed here incorporates a two dimensional photonic crystal, or photonic lattice, into a nitride-based LED. The dimensions of the photonic crystal are selected such that there are very few or no optical modes in the plane of the LED ('lateral' modes). This will reduce or eliminate any radiation in the lateral direction so that the majority of the LED radiation will be in vertical modes that escape the semiconductor, which will improve the light-extraction efficiency. PX-LEDs were fabricated using a range of hole diameters and lattice constants and compared to control LEDs without a photonic crystal. The far field patterns from the PX-LEDs were dramatically modified by the presence of the photonic crystal. An increase in LED brightness of 1.75X was observed for light measured into a 40 degree emission cone with a total increase in power of 1.5X for an unencapsulated LED.

Koleske, Daniel David; Bogart, Katherine Huderle Andersen; Shul, Randy John; Wendt, Joel Robert; Crawford, Mary Hagerott; Allerman, Andrew Alan; Fischer, Arthur Joseph

2005-04-01T23:59:59.000Z

98

Functionalized Graphene Nanoroads for Quantum Well Device  

Science Conference Proceedings (OSTI)

Using density functional theory, a series of calculations of structural and electronic properties of Si-substituted graphene were conducted. Through substituting C atoms by Si atoms on graphene in the present study, we found that the band gap of graphene can be continuously tuned with differently substitutional concentration. To utilize such substitution-induced band gap changes, we proposed a special design to fabricate graphene-based quantum well device.

Zhou, Yungang; Yang, Ping; Wang, Zhiguo; Xiao, Hai Yan; Zu, Xiaotao T.; Sun, Xin; Khaleel, Mohammad A.; Gao, Fei

2011-03-02T23:59:59.000Z

99

Advanced Binary Geothermal Power Plancts Working Fluid Property Determination and Heat Exchanger Design  

DOE Green Energy (OSTI)

The performance of binary geothermal power plants can be improved through the proper choice of a working fluid, and optimization of component designs and operating conditions. This paper reviews the investigations at the Idaho National Engineering Laboratory (INEL) which are examining binary cycle performance improvements: for moderate temperature (350 to 400 F) resources with emphasis on how the improvements may be integrated into design of binary cycles. These investigations are examining performance improvements resulting from the supercritical vaporization of mixed hydrocarbon working fluids and achieving countercurrent integral condensation with these fluids, as well as the modification of the turbine inlet state points to achieve supersaturated turbine vapor expansions. For resources where the brine outlet temperature is restricted, the use of turbine exhaust recuperators is examined. The baseline plant used to determine improvements in plant performance (characterized by the increase in the net brine effectiveness, watt-hours per pound of brine) in these studies operates at conditions similar to the 45 MW Heber binary plant. Through the selection of the optimum working fluids and operating conditions, achieving countercurrent integral condensation, and allowing supersaturated vapor expansions in the turbine, the performance of the binary cycle (the net brine effectiveness) can be improved by 25 to 30% relative to the baseline plant. The design of these supercritical Rankine-cycle (Binary) power plants for geothermal resources requires information about the potential working fluids used in the cycle. In addition, methods to design the various components, (e.g., heat exchangers, pumps, turbines) are needed. This paper limits its view of component design methods to the heat exchangers in binary power plants. The design of pumps and, turbines for these working fluids presents no new problems to the turbine manufacturer. However, additional work is proceeding at the Heat Cycle Research Facility to explore metastable expansions within turbines. This work, when completed, should allow the designer more flexibility in the state point selection in the design of these cycles which will potentially increase the system performance. The paper explores the different systems of thermodynamic and transport properties for mixtures of hydrocarbons. Methods include a computer program EXCST developed at the National Bureau of Standards in Boulder, as well as some of the thermodynamic models available in the chemical process simulation code, ASPEN, which was originally developed by the Department of Energy. The heat exchanger design methodology and computer programs of Heat Transfer Research, Inc. (HTRI) have been used because they represent data which is used throughout the industry by A & E firms as well as most heat exchanger manufacturers. For most cases, some modification of the computer results are necessary for supercritical heater design. When condensation takes place on the inside of enhanced tubes, new methods beyond HTRI's present state are necessary. The paper will discuss both of these modifications.

Bliem, C.J.; Mines, G.L.

1989-03-21T23:59:59.000Z

100

Cooperative innovation in the commons : rethinking distributed collaboration and intellectual property for sustainable design innovation  

E-Print Network (OSTI)

Addressing global design challenges in the environment and underserved communities requires a cooperative approach towards sustainable design innovation, one that embraces multidisciplinary expertise, participatory design ...

Sawhney, Nitin, 1971-

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Static properties and multiaxial strength criterion for design of composite automotive structures  

DOE Green Energy (OSTI)

The Durability of Lightweight Composite Structures Project was established at Oak Ridge National Laboratory (ORNL) by the US Department of Energy to provide the experimentally-based, durability-driven design guidelines necessary to assure long-term structural integrity of automotive composite components. The initial focus of the ORNL Durability Project was on one representative reference material -- an isocyanurate (polyurethane) reinforced with continuous strand, swirl-mat E-glass. The present paper describes tensile, compressive, flexure, and shear testing and results for the reference composite. Behavioral trends and proportional limit are established for both tension and compression. Damage development due to tensile loading, strain rate effects, and effects of temperature are discussed. Furthermore, effects on static properties of various fluids, including water at room and elevated temperatures, salt water, antifreeze, windshield washer fluid, used motor oil, battery acid, gasoline, and brake fluid, were investigated. Effects of prior loading were evaluated as well. Finally, the effect of multiaxial loading on strength was determined, and the maximum shear strength criterion was identified for design.

Ruggles, M.B.; Yahr, G.T.; Battiste, R.L.

1998-11-01T23:59:59.000Z

102

Rapid prototyping method for a microfluidics device  

E-Print Network (OSTI)

The product design process can be described as a number of steps taken to turn an idea into a reality. One particular design process of creating a microfluidics device was studied and analyzed. A device containing channels ...

Klauber, Kameron L

2012-01-01T23:59:59.000Z

103

The correlation of the electrical properties with electron irradiation and constant voltage stress for MIS devices based on high-k double layer (HfTiSiO: N and HfTiO:N) dielectrics  

Science Conference Proceedings (OSTI)

This paper describes the influence of e-beam irradiation and constant voltage stress on the electrical characteristics of metal-insulator-semiconductor structures, with double layer high-k dielectric stacks containing HfTiSiO:N and HfTiO:N ultra-thin ... Keywords: Electrical properties, High-k dielectrics, Metal-insulator-semiconductor (MIS) devices

V. Mikhelashvili; P. Thangadurai; W. D. Kaplan; G. Eisenstein

2010-11-01T23:59:59.000Z

104

Final Technical Report - A Combined Synthetic, Spectroscopic, and Theoretical Approach to the Rational Design of Photophysical and Photochemical Properties of Dendrimers  

DOE Green Energy (OSTI)

We summarize progress in the DOE project, "A Combined Synthetic, Spectroscopic, and Theoretical Approach to the Rational Design of Photophysical and Photochemical Properties of Dendrimers."

C. J. Bardeen; T. J. Martinez; J. S. Moore

2006-10-04T23:59:59.000Z

105

REACTOR CONTROL DEVICE  

DOE Patents (OSTI)

A wholly mechanical compact control device is designed for automatically rendering the core of a fission reactor subcritical in response to core temperatures in excess of the design operating temperature limit. The control device comprises an expansible bellows interposed between the base of a channel in a reactor core and the inner end of a fuel cylinder therein which is normally resiliently urged inwardly. The bellows contains a working fluid which undergoes a liquid to vapor phase change at a temperature substantially equal to the design temperature limit. Hence, the bellows abruptiy expands at this limiting temperature to force the fuel cylinder outward and render the core subcritical. The control device is particularly applicable to aircraft propulsion reactor service. (AEC)

Graham, R.H.

1962-09-01T23:59:59.000Z

106

HDL (hardware description language) and FPGA (field-programmable gate array) devices allow designers to quickly develop and simulate a sophisticated digital circuit, realize it  

E-Print Network (OSTI)

PREFACE HDL (hardware description language) and FPGA (field-programmable gate array) devices allow device, and verify operation of the physical implementation. As these technologies mature, they have a complex and sophisticated digital system. This book uses a "learning by doing" approach and illustrates

Chu, Pong P.

107

Electrochromic devices  

DOE Patents (OSTI)

An electrochromic device is disclosed having a selective ion transport layer which separates an electrochemically active material from an electrolyte containing a redox active material. The devices are particularly useful as large area architectural and automotive glazings due to there reduced back reaction.

Allemand, Pierre M. (Tucson, AZ); Grimes, Randall F. (Ann Arbor, MI); Ingle, Andrew R. (Tucson, AZ); Cronin, John P. (Tucson, AZ); Kennedy, Steve R. (Tuscon, AZ); Agrawal, Anoop (Tucson, AZ); Boulton, Jonathan M. (Tucson, AZ)

2001-01-01T23:59:59.000Z

108

A property-based system design method with application to a targeting system for small UAVs  

E-Print Network (OSTI)

The aim of system design is to define an optimal integration of components for the achievement of an overarching objective. As a result, engineering systems often cannot be designed with the disciplines meeting in isolation, ...

Mihok, Brian E. (Brian Edward)

2006-01-01T23:59:59.000Z

109

Optical and optoelectronic fiber devices  

E-Print Network (OSTI)

The ability to integrate materials with disparate electrical, thermal, and optical properties into a single fiber structure enabled the realization of fiber devices with diverse and complex functionalities. Amongst those, ...

Shapira, Ofer, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

110

Design  

NLE Websites -- All DOE Office Websites (Extended Search)

Design Design of a Multithreaded Barnes-Hut Algorithm for Multicore Clusters Technical Report Junchao Zhang and Babak Behzad Department of Computer Science, University of Illinois at Urbana-Champaign {jczhang, bbehza2}@illinois.edu Marc Snir Department of Computer Science, University of Illinois at Urbana-Champaign and MCS Division, Argonne National Laboratory snir@anl.gov Abstract We describe in this paper an implementation of the Barnes-Hut al- gorithm on multicore clusters. Based on a partitioned global ad- dress space (PGAS) library, the design integrates intranode mul- tithreading and internode one-sided communication, exemplifying a PGAS + X programming style. Within a node, the computation is decomposed into tasks (subtasks), and multitasking is used to hide network latency. We study the tradeoffs between locality in private caches and locality in shared caches

111

Device Performance  

DOE Green Energy (OSTI)

In the Device Performance group, within the National Center for Photovoltaic's Measurements and Characterization Division, we measure the performance of PV cells and modules with respect to standard reporting conditions--defined as a reference temperature (25 C), total irradiance (1000 Wm-2), and spectral irradiance distribution (IEC standard 60904-3). Typically, these are ''global'' reference conditions, but we can measure with respect to any reference set. To determine device performance, we conduct two general categories of measurements: spectral responsivity (SR) and current versus voltage (I-V). We usually perform these measurements using standard procedures, but we develop new procedures when required by new technologies. We also serve as an independent facility for verifying device performance for the entire PV community. We help the PV community solve its special measurement problems, giving advice on solar simulation, instrumentation for I-V measurements, reference cells, measurement procedures, and anomalous results. And we collaborate with researchers to analyze devices and materials.

Not Available

2006-06-01T23:59:59.000Z

112

Text for Mechanical and bulk properties in support of ESF design issues  

Science Conference Proceedings (OSTI)

An intensive laboratory investigation is being performed to determine the mechanical properties of tuffs for the Yucca Mountain Site Characterization Project (YMP). Most recently, experiments are being performed on tuff samples from a series of drill holes along the proposed alignment of the Exploratory Study Facilities (ESF) north ramp. Unconfined compression and indirect tension experiments are being performed and the results are being analyzed with the help of bulk property information. The results on samples from five of the drill holes are presented here. In general, the properties vary widely, but are highly dependent on the sample porosity.

Price, R.H. [Sandia National Labs., Albuquerque, NM (United States); Martin, R.J.; Boyd, P.J.; Noel, J.S. [New England Research, Inc., White River Junction, VT (United States)

1994-07-01T23:59:59.000Z

113

Improved Thermoelectric Devices: Advanced Semiconductor Materials for Thermoelectric Devices  

SciTech Connect

Broad Funding Opportunity Announcement Project: Phononic Devices is working to recapture waste heat and convert it into usable electric power. To do this, the company is using thermoelectric devices, which are made from advanced semiconductor materials that convert heat into electricity or actively remove heat for refrigeration and cooling purposes. Thermoelectric devices resemble computer chips, and they manage heat by manipulating the direction of electrons at the nanoscale. These devices aren’t new, but they are currently too inefficient and expensive for widespread use. Phononic Devices is using a high-performance, cost-effective thermoelectric design that will improve the device’s efficiency and enable electronics manufacturers to more easily integrate them into their products.

None

2009-12-11T23:59:59.000Z

114

Design and Some Properties of Continuous Fiber-Reinforced ZrB2 ...  

Science Conference Proceedings (OSTI)

Carbon Nanofiber Reinforced Polymer Derived Ceramic Nanocomposites · Changes ... Crack Growth, Modeling of Fracture Resistance, and Designing Ceramic Matrix ... High-Temperature Stress Rupture of Ceramic Matrix Composites under ...

115

Power and thermal challenges in mobile devices  

Science Conference Proceedings (OSTI)

In spite of significant advances in the development of low-power designs and power management techniques, power remains and will remain a first-class design constraint for mobile devices. The functionality integrated into mobile devices will only continue ... Keywords: leakage power, mobile devices, power management, process variability, thermal management

Krishna Sekar

2013-09-01T23:59:59.000Z

116

6.012 Microelectronic Devices and Circuits, Fall 2003  

E-Print Network (OSTI)

Modeling of microelectronic devices, and basic microelectronic circuit analysis and design. Physical electronics of semiconductor junction and MOS devices. Relation of electrical behavior to internal physical processes; ...

Fonstad, Clifton G.

117

Review on Biomass Torrefaction Process and Product Properties and Design of Moving Bed Torrefaction System Model Development  

Science Conference Proceedings (OSTI)

A Review on Torrefaction Process and Design of Moving Bed Torrefaction System for Biomass Processing Jaya Shankar Tumuluru1, Shahab Sokhansanj2 and Christopher T. Wright1 Idaho National Laboratory Biofuels and Renewable Energy Technologies Department Idaho Falls, Idaho 83415 Oak Ridge National Laboratory Bioenergy Resource and Engineering Systems Group Oak Ridge, TN 37831 Abstract Torrefaction is currently developing as an important preprocessing step to improve the quality of biomass in terms of physical properties, and proximate and ultimate composition. Torrefaction is a slow heating of biomass in an inert or reduced environment to a maximum temperature of 300 C. Torrefaction can also be defined as a group of products resulting from the partially controlled and isothermal pyrolysis of biomass occurring in a temperature range of 200-230 C and 270-280 C. Thus, the process can also be called a mild pyrolysis as it occurs at the lower temperature range of the pyrolysis process. At the end of the torrefaction process, a solid uniform product with lower moisture content and higher energy content than raw biomass is produced. Most of the smoke-producing compounds and other volatiles are removed during torrefaction, which produces a final product that will have a lower mass but a higher heating value. There is a lack of literature on the design aspects of torrefaction reactor and a design sheet for estimating the dimensions of the torrefier based on capacity. This study includes (a) conducting a detailed review on the torrefaction of biomass in terms of understanding the process, product properties, off-gas compositions, and methods used, and (b) to design a moving bed torrefier, taking into account the basic fundamental heat and mass transfer calculations. Specific objectives include calculating the dimensions like diameter and height of the moving packed bed torrefier for different capacities ranging from 25-1000 kg/hr, designing the heat loads and gas flow rates, and developing an interactive excel sheet where the user can define design specifications.

Jaya Shankar Tumuluru; Christopher T. Wright; Shahab Sokhansanj

2011-08-01T23:59:59.000Z

118

All products of the future clothes, household devices, lamps will contain electronic units. Graduates in Electronic Design Engineering will be able  

E-Print Network (OSTI)

to design the software and elec- tronics of the future, design energy-friendly systems by using clean tech. Graduates in Electronic Design Engineering will be able to design both electronics and system software hardware and software electronics, as well as mathematics and physics, to prototype cutting-edge projects

119

The design, synthesis and properties of pressure-processable biodegradable block copolymers  

E-Print Network (OSTI)

In this thesis, biodegradable block copolyesters were specifically designed and synthesized for their susceptibility to pressure-induced mixing. These baroplastic materials are capable of being processed and molded through ...

Lovell, Nathan Gary

2005-01-01T23:59:59.000Z

120

Influence of Damp Heat on the Electrical, Optical, and Morphological Properties of Encapsulated CuInGaSe2 Devices: Preprint  

DOE Green Energy (OSTI)

CuInGaSe2 (CIGS) devices, encapsulated with different backsheets having different water vapor transmission rates (WVTR), were exposed to damp heat (DH) at 85C and 85% relative humidity (RH) and characterized periodically to understand junction degradation induced by moisture ingress. Performance degradation of the devices was primarily driven by an increase in series resistance within first 50 h of exposure, resulting in a decrease in fill factor and, accompanied loss in carrier concentration and widening of depletion width. Surface analysis of the devices after 700-h DH exposure showed the formation of Zn(OH)2 from hydrolysis of the Al-doped ZnO (AZO) window layer by the moisture, which was detrimental to the collection of minority carriers. Minority carrier lifetimes observed for the CIGS devices using time resolved photoluminescence (TRPL) remained relatively long after DH exposure. By etching the DH-exposed devices and re-fabricating with new component layers, the performance of reworked devices improved significantly, further indicating that DH-induced degradation of the AZO layer and/or the CdS buffer was the primary performance-degrading factor.

Sundaramoorthy, R.; Pern, F. J.; Teeter, G.; Li, J. V.; Young, M.; Kuciauskas, D.; Call, N.; Yan, F.; To, B.; Johnston, S.; Noufi, R.; Gessert, T. A.

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Detection device  

DOE Patents (OSTI)

The present invention is directed to a detection device comprising: (1) an entrance chamber; (2) a central chamber; and (3) an exit chamber. The central chamber includes an ionizing gas, anode, and means for connecting the anode with an external power supply and pulse counter.

Smith, J.E.

1981-02-27T23:59:59.000Z

122

H17: Fabrication of Dense Non-circular Nanomagnetic Device ...  

Science Conference Proceedings (OSTI)

Challenge to Development of Diamond Power Devices for Saving Energy · Controllable Growth and Manipulation of Electric and Magnetic Properties of ...

123

GAO-11-879T Federal Real Property: Overreliance on Leasing Contributed to High-Risk Designation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Federal Financial Federal Financial Management, Government Information, Federal Services, and International Security, Committee on Homeland Security and Government Affairs, U.S. Senate FEDERAL REAL PROPERTY Overreliance on Leasing Contributed to High-Risk Designation Statement of David J. Wise, Director Physical Infrastructure Issues For Release on Delivery Expected at 2:30 p.m. EDT Thursday, August 4, 2011 GAO-11-879T United States Government Accountability Office Highlights of GAO-11-879T, a testimony before the Subcommittee on Federal Financial Management, Government Information, Federal Services, and International Security, Committee on Homeland Security and Governmental Affairs, U.S. Senate August 4, 2011 FEDERAL REAL PROPERTY Overreliance on Leasing Contributed to High-Risk

124

Properties  

Science Conference Proceedings (OSTI)

Table 3   Lubricant properties...45.0 6.80 103 0.67 � � 5W-30 motor oil, SG/CD, energy conserving II, ILSAC,

125

Resonant Tunneling Device Logic Circuits  

E-Print Network (OSTI)

This report is a summary of the activities in the field of resonant tunneling device circuit design. The presented work has been performed by the Department of Microelectronics of the University of Dortmund (UNIDO) and the Solid-State Electronics Department of the Gerhard-Mercator University of Duisburg (GMUD) during the first year of the Microelectronics Advanced Research Initiative projects ANSWERS (Autonomous Nanoelectronic Systems with Extended Replication and Signalling) and LOCOM (Logic Circuits with Reduced Complexity based on Devices with Higher Functionality). As part of the ANSWERS work-package the principal task of UNIDO is to investigate novel logic circuit architectures for resonant tunneling devices, to perform circuit simulations, and to specify the electrical device parameters. The basic device configuration is a monolithically integrated resonant tunneling diode heterostructure field-effect transistor (RTD-HFET). This device and the demonstrator circuits are fabricated by the LOCOM partner GMUD.

Christian Pacha; Peter Glösekötter; Karl Goser; Werner Prost; Uwe Auer; Franz-J. Tegude

1999-01-01T23:59:59.000Z

126

Laser device  

DOE Patents (OSTI)

A laser device includes a virtual source configured to aim laser energy that originates from a true source. The virtual source has a vertical rotational axis during vertical motion of the virtual source and the vertical axis passes through an exit point from which the laser energy emanates independent of virtual source position. The emanating laser energy is collinear with an orientation line. The laser device includes a virtual source manipulation mechanism that positions the virtual source. The manipulation mechanism has a center of lateral pivot approximately coincident with a lateral index and a center of vertical pivot approximately coincident with a vertical index. The vertical index and lateral index intersect at an index origin. The virtual source and manipulation mechanism auto align the orientation line through the index origin during virtual source motion.

Scott, Jill R. (Idaho Falls, ID); Tremblay, Paul L. (Idaho Falls, ID)

2008-08-19T23:59:59.000Z

127

LOADING DEVICE  

DOE Patents (OSTI)

A device is presented for loading or charging bodies of fissionable material into a reactor. This device consists of a car, mounted on tracks, into which the fissionable materials may be placed at a remote area, transported to the reactor, and inserted without danger to the operating personnel. The car has mounted on it a heavily shielded magazine for holding a number of the radioactive bodies. The magazine is of a U-shaped configuration and is inclined to the horizontal plane, with a cap covering the elevated open end, and a remotely operated plunger at the lower, closed end. After the fissionable bodies are loaded in the magazine and transported to the reactor, the plunger inserts the body at the lower end of the magazine into the reactor, then is withdrawn, thereby allowing gravity to roll the remaining bodies into position for successive loading in a similar manner.

Ohlinger, L.A.

1958-10-01T23:59:59.000Z

128

Biobased Surfactants and Detergents Synthesis, Properties, and ApplicationsChapter 14 Design of Vegetable Oil Metalworking Fluid Microemulsions Using Biobased Surfactants  

Science Conference Proceedings (OSTI)

Biobased Surfactants and Detergents Synthesis, Properties, and Applications Chapter 14 Design of Vegetable Oil Metalworking Fluid Microemulsions Using Biobased Surfactants Surfactants and Detergents eChapters Surfactants - Detergents Pre

129

Enhanced Thin Film Organic Photovoltaic Devices  

A novel structure design for thin film organic photovoltaic (OPV) devices provides a system for increasing the optical absorption in the active layer. ...

130

Property  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 7 AUDIT REPORT PERSONAL PROPERTY AT THE OAK RIDGE OPERATIONS OFFICE AND THE OFFICE OF SCIENTIFIC AND TECHNICAL INFORMATION U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF AUDIT SERVICES APRIL 1998 Page 10 DEPARTMENT OF ENERGY Washington, DC 20585 April 6, 1998 MEMORANDUM FOR THE MANAGER, OAK RIDGE OPERATIONS OFFICE AND THE DIRECTOR, OFFICE OF SCIENTIFIC AND TECHNICAL INFORMATION FROM: Terry L. Brendlinger Eastern Regional Audit Office Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Personal Property at the Oak Ridge Operations Office and the Office of Scientific and Technical Information" BACKGROUND The Oak Ridge Operations Office (Operations Office) and the Office of Scientific and Technical Information

131

Relativistic electron beam device  

DOE Patents (OSTI)

A design is given for an electron beam device for irradiating spherical hydrogen isotope bearing targets. The accelerator, which includes hollow cathodes facing each other, injects an anode plasma between the cathodes and produces an approximately 10 nanosecond, megajoule pulse between the anode plasma and the cathodes. Targets may be repetitively positioned within the plasma between the cathodes, and accelerator diode arrangement permits materials to survive operation in a fusion power source. (auth)

Freeman, J.R.; Poukey, J.W.; Shope, S.L.; Yonas, G.

1975-07-01T23:59:59.000Z

132

Using light emitting diode arrays as touchsensitive input and output devices  

E-Print Network (OSTI)

Light Emitting Diodes (LEDs) offer long life, low cost, efficiency, brightness, and a full range of colors. Because of these properties, they are widely used for simple displays in electronic devices. A previously characterized, but little known property of LEDs allows them to be used as photo sensors. In this paper, we show how this capability can be used to turn unmodified, off the shelf, LED arrays into touch sensitive input devices (while still remaining capable of producing output). The technique is simple and requires little or no extra hardware – in some cases operating with the same micro-controller based circuitry normally used to produce output, requiring only software changes. We will describe a simple hybrid input/output device prototype implemented with this technique, and discuss the design opportunities that this type of device opens up. Categories and Subject Descriptors:

Scott E. Hudson

2004-01-01T23:59:59.000Z

133

Electrochromic device  

DOE Patents (OSTI)

An electrochromic device includes a first substrate spaced from a second substrate. A first conductive member is formed over at least a portion of the first substrate. A first electrochromic material is formed over at least a portion of the first conductive member. The first electrochromic material includes an organic material. A second conductive member is formed over at least a portion of the second substrate. A second electrochromic material is formed over at least a portion of the second conductive member. The second electrochromic material includes an inorganic material. An ionic liquid is positioned between the first electrochromic material and the second electrochromic material.

Schwendemanm, Irina G. (Wexford, PA); Polcyn, Adam D. (Pittsburgh, PA); Finley, James J. (Pittsburgh, PA); Boykin, Cheri M. (Kingsport, TN); Knowles, Julianna M. (Apollo, PA)

2011-03-15T23:59:59.000Z

134

Gripping device  

DOE Patents (OSTI)

This invention consists of a gripping device having at least two fingers: one movable finger and at least one stationary finger. The fingers are attached to a support by a collar, the movable finger being pivotally attached. The support carries an air cylinder with a shaft to actuate the movable finger. The movable finger has a wide portion with a slot. On the distal end of the air cylinder's shaft is a travelerthat rides int he slot and, as it does, causes the movable finger to pivot toward and away from the two stationary fingers.

Hapstack, M.

1991-04-08T23:59:59.000Z

135

OLED devices  

DOE Patents (OSTI)

An OLED device having an emission layer formed of an ambipolar phosphine oxide host material and a dopant, a hole transport layer in electrical communication with an anode, an electron transport layer in communication with a cathode, wherein the HOMO energy of the hole transport layer is substantially the same as the HOMO energy of the ambipolar host in the emission layer, and the LUMO energy of the electron transport layer is substantially the same as the LUMO energy of the ambipolar host in the emission layer.

Sapochak, Linda Susan [Arlington, VA; Burrows, Paul Edward [Kennewick, WA; Bimalchandra, Asanga [Richland, WA

2011-02-22T23:59:59.000Z

136

NSLS Insertion Devices  

NLE Websites -- All DOE Office Websites (Extended Search)

Insertion Devices MGU-25 VUV Ring Insertion Devices X-Ray Ring Insertion Devices VISA NISUS Flux & Brightness of NSLS IDs Magnetic Measurement Lab...

137

Simulating nanoscale semiconductor devices.  

SciTech Connect

The next generation of electronic devices will be developed at the nanoscale and molecular level, where quantum mechanical effects are observed. These effects must be accounted for in the design process for such small devices. One prototypical nanoscale semiconductor device under investigation is a resonant tunneling diode (RTD). Scientists are hopeful the quantum tunneling effects present in an RTD can be exploited to induce and sustain THz frequency current oscillations. To simulate the electron transport within the RTD, the Wigner-Poisson equations are used. These equations describe the time evolution of the electrons distribution within the device. In this paper, this model and a parameter study using this model will be presented. The parameter study involves calculating the steady-state current output from the RTD as a function of an applied voltage drop across the RTD and also calculating the stability of that solution. To implement the parameter study, the computational model was connected to LOCA (Library of Continuation Algorithms), a part of Sandia National Laboratories parallel solver project, Trilinos. Numerical results will be presented.

Salinger, Andrew Gerhard; Zhao, P. (North Carolina State University, Raleigh, NC); Woolard, D. L. (U. S. Army Research Laboratory, NC); Kelley, C. Tim (North Carolina State University, Raleigh, NC); Lasater, Matthew S. (North Carolina State University, Raleigh, NC)

2005-03-01T23:59:59.000Z

138

PLASMA DEVICE  

DOE Patents (OSTI)

A device is described for establishing and maintaining a high-energy, rotational plasma for use as a fast discharge capacitor. A disc-shaped, current- conducting plasma is formed in an axinl magnetic field and a crossed electric field, thereby creating rotational kinetic enengy in the plasma. Such energy stored in the rotation of the plasma disc is substantial and is convertible tc electrical energy by generator action in an output line electrically coupled to the plasma volume. Means are then provided for discharging the electrical energy into an external circuit coupled to the output line to produce a very large pulse having an extremely rapid rise time in the waveform thereof. (AE C)

Baker, W.R.

1961-08-22T23:59:59.000Z

139

Original article: Design of a medium voltage power converter-storage devices embedded in a hybrid emergency network for more electrical aircraft  

Science Conference Proceedings (OSTI)

The purpose of this paper is to present and describe a hybrid electrical network for an aircraft in emergency operation. The principle of this network is to hybridize, through a bidirectional DC/DC converter, a high speed turbine (Ram Air turbine - RAT) ... Keywords: Electrical network, Electrochemical storage, Energy management, Hybridization, Power converter design

R. Rigo Mariani, F. Lacressonniere, G. Fontes, X. Roboam

2013-05-01T23:59:59.000Z

140

Laser device  

DOE Patents (OSTI)

A laser device includes a target position, an optical component separated a distance J from the target position, and a laser energy source separated a distance H from the optical component, distance H being greater than distance J. A laser source manipulation mechanism exhibits a mechanical resolution of positioning the laser source. The mechanical resolution is less than a spatial resolution of laser energy at the target position as directed through the optical component. A vertical and a lateral index that intersect at an origin can be defined for the optical component. The manipulation mechanism can auto align laser aim through the origin during laser source motion. The laser source manipulation mechanism can include a mechanical index. The mechanical index can include a pivot point for laser source lateral motion and a reference point for laser source vertical motion. The target position can be located within an adverse environment including at least one of a high magnetic field, a vacuum system, a high pressure system, and a hazardous zone. The laser source and an electro-mechanical part of the manipulation mechanism can be located outside the adverse environment. The manipulation mechanism can include a Peaucellier linkage.

Scott, Jill R. (Idaho Falls, ID); Tremblay, Paul L. (Idaho Falls, ID)

2007-07-10T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Definition: Energy Management Device | Open Energy Information  

Open Energy Info (EERE)

Device Device Jump to: navigation, search Dictionary.png Energy Management Device A device in the customer's premise, including hardware and software, designed to control the operation of other energy devices according to customer preferences and objectives such as reducing energy costs, or maintaining comfort or convenience. Controlled devices could include, but are not limited to, thermostats, lighting, and smart appliances. Among other control inputs, an energy management device can accept energy pricing signals from a utility or third party energy services provider.[1] Related Terms energy, smart appliance References ↑ https://www.smartgrid.gov/category/technology/energy_management_device [[Ca LikeLike UnlikeLike You like this.Sign Up to see what your friends like.

142

Fabrication and testing of thermoelectric thin film devices  

DOE Green Energy (OSTI)

Two thin-film thermoelectric devices are experimentally demonstrated. The relevant thermal loads on the cold junction of these devices are determined. The analytical form of the equation that describes the thermal loading of the device enables one to model the performance based on the independently measured electronic properties of the films forming the devices. This model elucidates which parameters determine device performance, and how they can be used to maximize performance.

Wagner, A.V.; Foreman, R.J.; Summers, L.J.; Barbee, T.W. Jr.; Farmer, J.C. [Lawrence Livermore National Lab., CA (United States). Chemistry and Materials Science Dept.

1996-03-01T23:59:59.000Z

143

On solar building energy devices  

Science Conference Proceedings (OSTI)

A method for simulation of solar energy devices connected to a building has been proposed. The solutions of one dimensional heat conduction and heat transport equations are obtained both with the new method as well as traditional method used for design ... Keywords: experiments, heat exchange, numerical model, simulation method, solar energy

Himanshu Dehra

2007-05-01T23:59:59.000Z

144

CONTROL LIMITER DEVICE  

DOE Patents (OSTI)

A control-limiting device for monltoring a control system is described. The system comprises a conditionsensing device, a condition-varying device exerting a control over the condition, and a control means to actuate the condition-varying device. A control-limiting device integrates the total movement or other change of the condition-varying device over any interval of time during a continuum of overlapping periods of time, and if the tothl movement or change of the condition-varying device exceeds a preset value, the control- limiting device will switch the control of the operated apparatus from automatic to manual control.

DeShong, J.A.

1960-03-01T23:59:59.000Z

145

Innovative approaches to improve bulk heterojuction organic photovoltaic device performance.  

E-Print Network (OSTI)

??In this thesis we studied the electrical properties of bulk heterojunction organic photovoltaic (OPV) devices fabricated using a variety of conjugated polymers, including regioregular P3HT,… (more)

Zhang, Ye

2010-01-01T23:59:59.000Z

146

Studies of Nanostructured Thermoelectric Materials and Devices for ...  

Science Conference Proceedings (OSTI)

... into thermoelectric devices to show excellent power generation and cooling ... Property in Grain Boundary Character Distribution-Optimized Ni-based Alloy.

147

A platform for implantable medical device validation: demo abstract  

Science Conference Proceedings (OSTI)

We present the design of an integrated modeling platform to investigate efficient methodologies for certifying medical device software. The outcome of this research has the potential to expedite medical device software certification for safer operation. ...

Zhihao Jiang; Miroslav Pajic; Allison Connolly; Sanjay Dixit; Rahul Mangharam

2010-10-01T23:59:59.000Z

148

Nanoscale devices for solid state refrigeration and power generation,” Twentieth Annual  

E-Print Network (OSTI)

A brief review of various techniques to engineer nanoscale thermal and electrical properties of materials is given. The main emphasis is on various energy conversion mechanisms, particularly, thermo electric refrigeration and power generation. Recent experimental and theoretical results on superlattice and quantum dot thermoelectrics and solidstate and vacuum thermionic thin film devices are reviewed. We also present an overview of the research activities at the multi university Thermionic Energy Conversion Center on the design of solid-state and vacuum devices that could convert heat into electricity with hot side temperatures ranging from 300 to 650C and with high conversion efficiency.

Ali Shakouri

2004-01-01T23:59:59.000Z

149

Disappearing mobile devices  

Science Conference Proceedings (OSTI)

In this paper, we extrapolate the evolution of mobile devices in one specific direction, namely miniaturization. While we maintain the concept of a device that people are aware of and interact with intentionally, we envision that this concept can become ... Keywords: gesture, input device, interaction technique, miniaturization, mobile device, sensor, ubicomp, wearable

Tao Ni; Patrick Baudisch

2009-10-01T23:59:59.000Z

150

Microfabricated fuel heating value monitoring device  

DOE Patents (OSTI)

A microfabricated fuel heating value monitoring device comprises a microfabricated gas chromatography column in combination with a catalytic microcalorimeter. The microcalorimeter can comprise a reference thermal conductivity sensor to provide diagnostics and surety. Using microfabrication techniques, the device can be manufactured in production quantities at a low per-unit cost. The microfabricated fuel heating value monitoring device enables continuous calorimetric determination of the heating value of natural gas with a 1 minute analysis time and 1.5 minute cycle time using air as a carrier gas. This device has applications in remote natural gas mining stations, pipeline switching and metering stations, turbine generators, and other industrial user sites. For gas pipelines, the device can improve gas quality during transfer and blending, and provide accurate financial accounting. For industrial end users, the device can provide continuous feedback of physical gas properties to improve combustion efficiency during use.

Robinson, Alex L. (Albuquerque, NM); Manginell, Ronald P. (Albuquerque, NM); Moorman, Matthew W. (Albuquerque, NM)

2010-05-04T23:59:59.000Z

151

New Generation of Digital Microfluidic Devices  

E-Print Network (OSTI)

This paper reports on the design, fabrication, and performance of micro-sized fluidic devices that use electrowetting to control and transport liquids. Using standard microfabrication techniques, new pumping systems are ...

Abedian, Behrouz

152

Asbestos : operating system security for mobile devices  

E-Print Network (OSTI)

This thesis presents the design and implementation of a port of the Asbestos operating system to the ARM processor. The port to the ARM allows Asbestos to run on mobile devices such as cell phones and personal digital ...

Stevenson, Martijn

2006-01-01T23:59:59.000Z

153

Electrical safety device  

DOE Patents (OSTI)

An electrical safety device for use in power tools that is designed to automatically discontinue operation of the power tool upon physical contact of the tool with a concealed conductive material. A step down transformer is used to supply the operating power for a disconnect relay and a reset relay. When physical contact is made between the power tool and the conductive material, an electrical circuit through the disconnect relay is completed and the operation of the power tool is automatically interrupted. Once the contact between the tool and conductive material is broken, the power tool can be quickly and easily reactivated by a reset push button activating the reset relay. A remote reset is provided for convenience and efficiency of operation.

White, David B. (Greenock, PA)

1991-01-01T23:59:59.000Z

154

Electrical safety device  

DOE Patents (OSTI)

This invention consists of an electrical safety device for use in power tools that is designed to automatically discontinue operation of the power tool upon physical contact of the tool with a concealed conductive material. A step down transformer is used to supply the operating power for a disconnect relay and reset delay. When physical contact is made between the power tool and the conductive material, an electrical circuit through the disconnect relay is completed and the operation of the power tool is automatically interrupted. Once the contact between the tool and conductive material is broken, the power tool can be quickly and easily reactivated by a reset push button activating the reset relay. A remote reset is provided for convenience and efficiency of operation.

White, D.B.

1990-09-06T23:59:59.000Z

155

Encapsulant materials and associated devices  

DOE Patents (OSTI)

Compositions suitable for use as encapsulants are described. The inventive compositions include a high molecular weight polymeric material, a curing agent, an inorganic compound, and a coupling agent. Optional elements include adhesion promoting agents, colorants, antioxidants, and UV absorbers. The compositions have desirable diffusivity properties, making them suitable for use in devices in which a substantial blocking of moisture ingress is desired, such as photovoltaic (PV) modules.

Kempe, Michael D (Littleton, CO); Thapa, Prem (Lima, OH)

2012-05-22T23:59:59.000Z

156

Encapsulant materials and associated devices  

DOE Patents (OSTI)

Compositions suitable for use as encapsulants are described. The inventive compositions include a high molecular weight polymeric material, a curing agent, an inorganic compound, and a coupling agent. Optional elements include adhesion promoting agents, colorants, antioxidants, and UV absorbers. The compositions have desirable diffusivity properties, making them suitable for use in devices in which a substantial blocking of moisture ingress is desired, such as photovoltaic (PV) modules.

Kempe, Michael D (Littleton, CO); Thapa, Prem (Lima, OH)

2011-03-08T23:59:59.000Z

157

Design of a snowboard simulating exercise device  

E-Print Network (OSTI)

Snowboarding, since its creation, has become one of the most widely practiced winter sports. Unfortunately, most snowboarding enthusiasts are unable to snowboard year round due to geographic and financial limitations. One ...

Vanderpoel, Timothy A

2005-01-01T23:59:59.000Z

158

Survey of hydrogen monitoring devices  

DOE Green Energy (OSTI)

Presented are results of a survey of commercially available monitoring devices suitable for hydrogen detection in the secondary containment vessel of a nuclear power plant during the post postulated accident period. Available detectors were grouped into the following five classes: combustion, solid state, electrochemical, thermal conductivity, and absorption. The performance of most available sensors is likely to deteriorate when exposed to the postulated conditions which include moisture, which could be at high temperature, and radioactive noncondensibles. Of the commercial devices, those using metallic filament thermal conductivity detectors seem least susceptible to performance change. Absorption detectors are best suited for this monitoring task but the only available device is designed for pipeline corrosion assessment. Initiation of experimental study to assess apparent deficiencies of commercial detectors is recommended. Also recommended is an analytical/experimental effort to determine the optimum detector array for monitoring in the secondary containment vessels.

Lai, W.

1981-01-01T23:59:59.000Z

159

Specification of CuCrZr Alloy Properties after Various Thermo-Mechanical Treatments and Design Allowables including Neutron Irradiation Effects  

Science Conference Proceedings (OSTI)

Precipitation hardened CuCrZr alloy is a promising heat sink and functional material for various applica- tions in ITER, for example the first wall, blanket electrical attachment, divertor, and heating systems. Three types of thermo-mechanical treatment were identified as most promising for the various applica- tions in ITER: solution annealing, cold working and ageing; solution annealing and ageing; solution annealing and ageing at non-optimal condition due to specific manufacturing processes for engineer- ing-scale components. The available data for these three types of treatments were assessed and mini- mum tensile properties were determined based on recommendation of Structural Design Criteria for the ITER In-vessel Components. The available data for these heat treatments were analyzed for assess- ment of neutron irradiation effect. Using the definitions of the ITER Structural Design Criteria the design allowable stress intensity values are proposed for CuCrZr alloy after various heat treatments.

Barabash, Vladimir [ITER Organization, Saint Paul Lez Durance, France; Kalinin, G. M. [RDIPE, P.O. Box 788, 101000 Moscow, Russia; Fabritsiev, Sergei A. [D.V. Efremov Scientific Research Institute, St. Petersburg, Russia; Zinkle, Steven J [ORNL

2012-01-01T23:59:59.000Z

160

Pneumatic Conveyance Device  

The Pneumatic Conveyance Device is capable of dislodging, capturing, and conveying solid material, wet or dry, from a depth of 70+ feet, while discharging through a 100+ foot conveyance hose.  The device was developed to remove water and solid ...

Note: This page contains sample records for the topic "device design properties" 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

Energy Equipment Property Tax Exemption | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Equipment Property Tax Exemption Energy Equipment Property Tax Exemption Energy Equipment Property Tax Exemption < Back Eligibility Commercial Industrial Residential Savings Category Bioenergy Commercial Heating & Cooling Manufacturing Buying & Making Electricity Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Heating Water Swimming Pool Heaters Water Heating Wind Program Info State Arizona Program Type Property Tax Incentive Rebate Amount 100% of increased value Provider Arizona Department of Revenue Arizona's property tax exemption was established in June 2006 ([http://www.azleg.gov/legtext/47leg/2r/bills/hb2429s.pdf HB 2429]) and originally applied only to "solar energy devices and any other device or system designed for the production of solar energy for on-site

162

Montgomery County - Residential Energy Conservation Property Tax Credits |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here You are here Home » Montgomery County - Residential Energy Conservation Property Tax Credits Montgomery County - Residential Energy Conservation Property Tax Credits < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Sealing Your Home Other Design & Remodeling Windows, Doors, & Skylights Construction Manufacturing Heat Pumps Solar Buying & Making Electricity Maximum Rebate $250 per fiscal year Program Info Start Date 07/01/2008 State Maryland Program Type Property Tax Incentive Rebate Amount 100% of eligible costs Provider Department of Finance Note: As originally enacted, this program offer property tax credits for the installation of solar and geothermal energy devices in addition to

163

GAS DISCHARGE DEVICES  

DOE Patents (OSTI)

The construction of gas discharge devices where the object is to provide a gas discharge device having a high dark current and stabilized striking voltage is described. The inventors have discovered that the introduction of tritium gas into a discharge device with a subsequent electrical discharge in the device will deposit tritium on the inside of the chamber. The tritium acts to emit beta rays amd is an effective and non-hazardous way of improving the abovementioned discharge tube characteristics

Arrol, W.J.; Jefferson, S.

1957-08-27T23:59:59.000Z

164

Pulse detecting device  

DOE Patents (OSTI)

A device for measuring particle flux comprises first and second photodiode detectors for receiving flux from a source and first and second outputs for producing first and second signals representing the flux incident to the detectors. The device is capable of reducing the first output signal by a portion of the second output signal, thereby enhancing the accuracy of the device. Devices in accordance with the invention may measure distinct components of flux from a single source or fluxes from several sources.

Riggan, W.C.

1984-01-01T23:59:59.000Z

165

Residential Energy Display Devices  

Science Conference Proceedings (OSTI)

Residential energy display devices provide direct feedback to consumers about their electricity use and cost, direct feedback that potentially can help customers manage electricity consumption. EPRI tested five different stand-alone display devices in its Energy Efficiency and Demand Response Living Laboratory to assess whether devices functioned according to manufacturer specifications. In addition to providing results of these tests, this Technology Brief describes how display devices operate, summariz...

2008-06-20T23:59:59.000Z

166

Portable data collection device  

DOE Patents (OSTI)

The present invention provides a portable data collection device that has a variety of sensors that are interchangeable with a variety of input ports in the device. The various sensors include a data identification feature that provides information to the device regarding the type of physical data produced by each sensor and therefore the type of sensor itself. The data identification feature enables the device to locate the input port where the sensor is connected and self adjust when a sensor is removed or replaced. The device is able to collect physical data, whether or not a function of a time.

French, Patrick D. (Aurora, CO)

1996-01-01T23:59:59.000Z

167

Unitary lens semiconductor device  

DOE Patents (OSTI)

A unitary lens semiconductor device and method. The unitary lens semiconductor device is provided with at least one semiconductor layer having a composition varying in the growth direction for unitarily forming one or more lenses in the semiconductor layer. Unitary lens semiconductor devices may be formed as light-processing devices such as microlenses, and as light-active devices such as light-emitting diodes, photodetectors, resonant-cavity light-emitting diodes, vertical-cavity surface-emitting lasers, and resonant cavity photodetectors.

Lear, Kevin L. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

168

Integration of a Novel Microfluidic Device with  

E-Print Network (OSTI)

Light emitting diode antifuse has been integrated into a microfluidic device that is realized with extended standard CMOS technological steps. The device comprises of a microchannel sandwiched between a photodiode detector and a nanometer-scale diode antifuse light emitter. In this chapter, the device fabrication process, working principle and properties will be discussed. Change in the interference fringe of the antifuse spectra has been measured due to the filling of the channel. Preliminary possible applications are electro-osmotic flow speed measurement, detection of absorptivity of liquids in the channel...

Silicon Light Emitting; J. W. Berenschot; N. R. Tas; A. Van Den Berg

2000-01-01T23:59:59.000Z

169

Generic Testability and Test Methods Guidelines for ASIC Devices  

Science Conference Proceedings (OSTI)

Application specific integrated circuit (ASIC) devices can cost- effectively perform the same functions as analog modules. In fact, functions performed by several analog modules can be incorporated into one ASIC device. Qualification testing, however, is needed to ensure the high reliability required of ASIC devices used in nuclear power plant safety and control systems. This report presents guidelines for designing high- reliability ASIC devices that support cost-effective qualification testing.

1996-04-30T23:59:59.000Z

170

ICRF heating on helical devices  

SciTech Connect

Ion cyclotron range of frequency (ICRF) heating is currently in use on CHS and W7AS and is a major element of the heating planned for steady state helical devices. In helical devices, the lack of a toroidal current eliminates both disruptions and the need for ICRF current drive, simplifying the design of antenna structures as compared to tokamak applications. However the survivability of plasma facing components and steady state cooling issues are directly applicable to tokamak devices. Results from LHD steady state experiments should be available on a time scale to strongly influence the next generation of steady state tokamak experiments. The helical plasma geometry provides challenges not faced with tokamak ICRF heating, including the potential for enhanced fast ion losses, impurity accumulation, limited access for antenna structures, and open magnetic field lines in the plasma edge. The present results and near term plans provide the basis for steady state ICRF heating of larger helical devices. An approach which includes direct electron, mode conversion, ion minority and ion Bernstein wave heating addresses these issues.

Rasmussen, D.A.; Lyon, J.F.; Hoffman, D.J. [and others

1995-09-01T23:59:59.000Z

171

ICRF heating on helical devices  

SciTech Connect

Ion cyclotron range of frequency (ICRF) heating is currently in use on CHS and W7-AS and is a major element of the heating planned for steady state helical devices. In helical devices, the lack of a toroidal current eliminates both disruptions and the need for ICRF current drive, simplifying the design of antenna structures as compared to tokamak applications. However the survivability of plasma facing components and steady state cooling issues are directly applicable to tokamak devices. Results from LHD steady state experiments should be available on a time scale to strongly influence the next generation of steady state tokamak experiments. The helical plasma geometry provides challenges not faced with tokamak ICRF heating, including the potential for enhanced fast ion losses, impurity accumulation, limited access for antenna structures, and open magnetic field lines in the plasma edge. The present results and near term plans provide the basis for steady state ICRF heating of larger helical devices. An approach which includes direct electron, mode conversion, ion minority and ion Bernstein wave heating addresses these issues.

Rasmussen, D.A.; Lyon, J.F.; Hoffman, D.J.; Murakami, M.; England, A.C.; Wilgen, J.B.; Jaeger, E.F.; Wang, C.; Batchelor, D.B.

1995-09-01T23:59:59.000Z

172

Multifunctional Composites and Devices for Sensing and Energy Harvesting  

E-Print Network (OSTI)

This research investigates a novel class of active materials for energy and sensing applications. Magnetocaloric alloys, Gd5Si2Ge2, were developed into a composite with poly(vinylidine flouride) (PVDF), piezoelectric polymer. The giant megnetocaloric property combined with the piezoelectricity creates extraordinary properties for composite materials. The research approach was primarily experimental. Activities include synthesis, characterization, and device design and evaluation. Using the arc melting method, the magenetocaloric samples were created. Multi-length scales characterized using atomic force microscopy (AFM), optical microscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), X-Ray diffraction (XRD), and X-Ray Photoelectron spectroscopy (XPS). The prototype devices were evaluated for their power generation and efficiency. Through those techniques, the fundamental understanding in the new materials was obtained. The relationships between process-microstructures, microstructure-properties, and structure-power generation were established. Results showed that the phase transformation of the magnetocaloric material at its Curie temperature induced a significant increase in power generation in the peizeoelectric polymer. Such transition was also beneficial for a laminated device for energy harvesting. In addition, it was found that the oxidation that occurred during high temperature melting stabilized the orthorhombic phase at room temperature. The multifunctional composites as well as the laminated structure use the thermal expansion of the magnetocaloric material for energy harvesting, cyclic monitoring, and/or thermal switching. This thesis consists of six chapters. Chapter I provides a history and explanation of the materials used. Chapter II provides an explanation of the motivation for this work. Chapter III addresses the experimental procedures. The results of which are presented in Chapter IV and discussed in Chapter V. The research is summarized and future recommendations are given in Chapter VI.

Cleveland, Michael Allen

2010-05-01T23:59:59.000Z

173

A Tiered Security System for Mobile Devices  

E-Print Network (OSTI)

We have designed a tiered security system for mobile devices where each security tier holds user-defined security triggers and actions. It has a friendly interface that allows users to easily define and configure the different circumstances and actions they need according to context. The system can be set up and activated from any browser or directly on the mobile device itself. When the security system is operated from a Web site or server, its configuration can be readily shared across multiple devices. When operated directly from the mobile device, no server is needed for activation. Many different types of security circumstances and actions can be set up and employed from its tiers. Security circumstances can range from temporary misplacement of a mobile device at home to malicious theft in a hostile region. Security actions can range from ringing a simple alarm to automatically erasing, overwriting, and re-erasing drives.

Bardsley, Scott; Morris, R Paul

2008-01-01T23:59:59.000Z

174

INSERTION DEVICE ACTIVITIES FOR NSLS-II.  

DOE Green Energy (OSTI)

National Synchrotron Light Source-II (NSLS-II) will be a medium energy storage ring of 3GeV electron beam energy with sub-nm.rad horizontal emittance and top-off capability at 500mA. Damping wigglers will be used not only to reduce the beam emittance but also used as broadband sources for users. Cryo-Permanent Magnet Undulators (CPMUs) are considered for hard X-ray linear device, and permanent magnet based elliptically polarized undulators (EPUs) for variable polarization devices for soft X-ray. 6T superconducting wiggler with minimal fan angle will be installed in the second phase as well as quasi-periodic EPU for VUV and possibly high-temperature superconducting undulator. R&D plans have been established to pursue the performance enhancement of the baseline devices and to design new types of insertion devices. A new insertion device development laboratory will also be established.

TANABE,T.; HARDER, D.A.; HULBERT, S.; RAKOWSKI, G.; SKARITKA, J.

2007-06-25T23:59:59.000Z

175

KK4, Optical and Electrical Transport Properties of Nearly Intrinsic ...  

Science Conference Proceedings (OSTI)

We have also measured the electrical transport properties of single InN:Si .... F1, Applications of SiC Power Devices – A Materials and Device Perspective.

176

Editorial: Photovoltaic Materials and Devices  

Science Conference Proceedings (OSTI)

As the global energy needs grow, there is increasing interest in the generation of electricity by photovoltaics (PVs) devices or solar cells - devices that convert sunlight to electricity. Solar industry has seen an enormous growth during the last decade. The sale of PV modules has exceeded 27 GW in 2011, with significant contributions to the market share from all technologies. While the silicon technology continues to have the dominant share, the other thin film technologies (CdTe, CIGS, a-Si, and organic PV) are experiencing fast growth. Increased production of silicon modules has led to a very rapid reduction in their price and remains as benchmark for other technologies. The PV industry is in full gear to commercialize new automated equipment for solar cell and module production, instrumentation for process monitoring technologies, and for implementation of other cost-reduction approaches, and extensive research continues to be carried out in many laboratories to improve the efficiency of solar cells and modules without increasing the production costs. A large variety of solar cells, which differ in the material systems used, design, PV structure, and even the principle of PV conversion, are designed to date. This special issue contains peer-reviewed papers in the recent developments in research related to broad spectrum of photovoltaic materials and devices. It contains papers on many aspects of solar cells-the growth and deposition, characterization, and new material development.

Sopori, B.; Tan, T.; Rupnowski, P.

2012-01-01T23:59:59.000Z

177

High Temperature and Electrical Properties  

Science Conference Proceedings (OSTI)

Mar 5, 2013... and Nanomaterials: High Temperature and Electrical Properties ... thermomechanical (or in cyclic power) loading of electronic devices is an ...

178

SLM device for 193nm lithographic applications  

Science Conference Proceedings (OSTI)

The imaging capability of a new spatial light modulator, (SLM), a custom MEMS device is presented. Low k"1 factor aerial image measurements show the suitability of the SLM device for a variety of uses including optical maskless lithography (OML) applications. ... Keywords: Aerial image, Calibration, Design, Electro-mechanical, Electrode, Fabrication, Imaging, Integration, MEMS, Maskless, Micro-mirror, Mirror, OML, Optical maskless lithography, Packaging, Qualification, SLM, Spatial light modulator

John Lauria; Ronald Albright; Olga Vladimirsky; Maarten Hoeks; Roel Vanneer; Bert van Drieenhuizen; Luoqi Chen; Luc Haspeslagh; Ann Witvrouw

2009-04-01T23:59:59.000Z

179

Seamless access of home theater personal computers for mobile devices  

Science Conference Proceedings (OSTI)

This paper presents the MoMPt project, an open source project developed to allow access to multimedia content and to control multiple HTPCs remotely using mobile devices. The main contribution in the context of this project is its reference design, which ... Keywords: web services, HTPC, UPnP, mobile devices, mobile multimedia system design, multimedia

Lorena F. Maia; Danilo F. S. Santos; Ricardo S. Souza; Angelo Perkusich; Hyggo Almeida

2009-03-01T23:59:59.000Z

180

Chalcopyrite Heterojunction Photovoltaic Devices  

Science Conference Proceedings (OSTI)

This indicates that a p-n junction with photovoltaic response was formed between the films and Si. The estimated open -circuit voltage VOC for these devices is ...

Note: This page contains sample records for the topic "device design properties" 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

High efficiency photovoltaic device  

DOE Patents (OSTI)

An N-I-P type photovoltaic device includes a multi-layered body of N-doped semiconductor material which has an amorphous, N doped layer in contact with the amorphous body of intrinsic semiconductor material, and a microcrystalline, N doped layer overlying the amorphous, N doped material. A tandem device comprising stacked N-I-P cells may further include a second amorphous, N doped layer interposed between the microcrystalline, N doped layer and a microcrystalline P doped layer. Photovoltaic devices thus configured manifest improved performance, particularly when configured as tandem devices.

Guha, Subhendu (Troy, MI); Yang, Chi C. (Troy, MI); Xu, Xi Xiang (Findlay, OH)

1999-11-02T23:59:59.000Z

182

Iris Device Qualification Test  

Science Conference Proceedings (OSTI)

... Device Qualification Test (IDQT). July 15, 2013 - Slides from Workshop. Slides that give the detailed technical approach toward the IDQT tests are ...

2013-07-16T23:59:59.000Z

183

Medical Device Interoperability  

Science Conference Proceedings (OSTI)

... The research effort includes a gap analysis of the medical device communication standard IEEE 11073 versus use case scenarios outlined in ...

2011-03-14T23:59:59.000Z

184

The Discharge Design of HL-2M with the Tokamak Simulation Code (TSC)  

Science Conference Proceedings (OSTI)

We present results on the discharge design of the HL-2M tokamak, which is to be an upgrade to the existing HL-2A tokamak. We present simulation results for complete 5-sec. discharges, both double null and lower single null, for both ohmic and auxiliary heated discharges. We also discuss the vertical stability properties of the device. __________________________________________________

Yudong Pan, S.C. Jardin, and C. Kes

2007-10-10T23:59:59.000Z

185

CONCEPTUAL DESIGN REPORT  

Science Conference Proceedings (OSTI)

Brookhaven National Laboratory has prepared a conceptual design for a world class user facility for scientific research using synchrotron radiation. This facility, called the ''National Synchrotron Light Source II'' (NSLS-II), will provide ultra high brightness and flux and exceptional beam stability. It will also provide advanced insertion devices, optics, detectors, and robotics, and a suite of scientific instruments designed to maximize the scientific output of the facility. Together these will enable the study of material properties and functions with a spatial resolution of {approx}1 nm, an energy resolution of {approx}0.1 meV, and the ultra high sensitivity required to perform spectroscopy on a single atom. The overall objective of the NSLS-II project is to deliver a research facility to advance fundamental science and have the capability to characterize and understand physical properties at the nanoscale, the processes by which nanomaterials can be manipulated and assembled into more complex hierarchical structures, and the new phenomena resulting from such assemblages. It will also be a user facility made available to researchers engaged in a broad spectrum of disciplines from universities, industries, and other laboratories.

ROBINSON,K.

2006-12-31T23:59:59.000Z

186

Performance of Installed Cooking Exhaust Devices  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance of Installed Cooking Exhaust Devices Performance of Installed Cooking Exhaust Devices Title Performance of Installed Cooking Exhaust Devices Publication Type Journal Article Refereed Designation Refereed LBNL Report Number LBNL-5265E Year of Publication 2012 Authors Singer, Brett C., William W. Delp, Michael G. Apte, and Phillip N. Price Journal Indoor Air Volume 22 Issue 3 Pagination 224-234 Date Published 06/2012 Keywords carbon monoxide, natural gas burners, nitrogen dioxide, range hood, task ventilation, unvented combustion, indoor environment group, Range Hood Test Facility Abstract The performance metrics of airflow, sound, and combustion product capture efficiency (CE) were measured for a convenience sample of fifteen cooking exhaust devices, as installed in residences. Results were analyzed to quantify the impact of various device- and installation-dependent parameters on CE. Measured maximum airflows were 70% or lower than values noted on product literature for 10 of the devices. Above-the-cooktop devices with flat bottom surfaces (no capture hood) - including exhaust fan/microwave combination appliances - were found to have much lower CE at similar flow rates, compared to devices with capture hoods. For almost all exhaust devices and especially for rear-mounted downdraft exhaust and microwaves, CE was substantially higher for back compared with front burner use. Flow rate, and the extent to which the exhaust device extends over the burners that are in use, also had a large effect on CE. A flow rate of 95 liters per second (200 cubic feet per minute) was necessary, but not sufficient, to attain capture efficiency in excess of 75% for the front burners. A-weighted sound levels in kitchens exceeded 57 dB when operating at the highest fan setting for all 14 devices evaluated for sound performance.

187

Mobile Device Management Android Device Enrollment  

E-Print Network (OSTI)

Play Store. b. Search for Zenprise for Employees. c. Tap Install. #12;d. Tap Accept and download. 4 your device. b. Tap Enroll Android. c. Enter your LSUHSC email address. #12;d. Enter LSUHSC password and click Enroll. i. StrongId should be blank. e. Accept the Terms and Conditions. 5. Installing Touchdown a

188

Materials Properties Database for Selection of High-Temperature Alloys and Concepts of Alloy Design for SOFC Applications  

Science Conference Proceedings (OSTI)

To serve as an interconnect / gas separator in an SOFC stack, an alloy should demonstrate the ability to provide (i) bulk and surface stability against oxidation and corrosion during prolonged exposure to the fuel cell environment, (ii) thermal expansion compatibility with the other stack components, (iii) chemical compatibility with adjacent stack components, (iv) high electrical conductivity of the surface reaction products, (v) mechanical reliability and durability at cell exposure conditions, (vii) good manufacturability, processability and fabricability, and (viii) cost effectiveness. As the first step of this approach, a composition and property database was compiled for high temperature alloys in order to assist in determining which alloys offer the most promise for SOFC interconnect applications in terms of oxidation and corrosion resistance. The high temperature alloys of interest included Ni-, Fe-, Co-base superal

Yang, Z Gary; Paxton, Dean M.; Weil, K. Scott; Stevenson, Jeffry W.; Singh, Prabhakar

2002-11-24T23:59:59.000Z

189

Grey man devices  

E-Print Network (OSTI)

The Vision Slaved to Walking Device i s one in a series of devices that are a result of the experimental ambulation series. The ability to see only when one's feet are moving allows for a distorted perspective of ones own ...

Sethi, Sanjit (Sanjit Singh), 1971-

2002-01-01T23:59:59.000Z

190

Chronology of Computing Devices  

Science Conference Proceedings (OSTI)

A chronology of computing devices is given. It begins with the abacus and counting tables, and traces the development through desk calculators, analog computers, and finally stored program automatic digital computers. Significant dates relative to the ... Keywords: Calculating machines, chronology, computers, computing devices, history.

H. D. Huskey; V. R. Huskey

1976-12-01T23:59:59.000Z

191

Verifiably secure devices  

Science Conference Proceedings (OSTI)

We put forward the notion of a verifiably secure device, in essence a stronger notion of secure computation, and achieve it in the ballot-box model. Verifiably secure devices 1. Provide a perfect solution to the problem of achieving correlated equilibrium, ...

Sergei Izmalkov; Matt Lepinski; Silvio Micali

2008-03-01T23:59:59.000Z

192

Device for removing blackheads  

DOE Patents (OSTI)

A device for removing blackheads from pores in the skin having a elongated handle with a spoon shaped portion mounted on one end thereof, the spoon having multiple small holes piercing therethrough. Also covered is method for using the device to remove blackheads.

Berkovich, Tamara (116 N. Wetherly Dr., Suite 115, Los Angeles, CA)

1995-03-07T23:59:59.000Z

193

Self-actuated device  

DOE Patents (OSTI)

A self-actuated device, of particular use as a valve or an orifice for nuclear reactor fuel and blanket assemblies, in which a gas produced by a neutron induced nuclear reaction gradually accumulates as a function of neutron fluence. The gas pressure increase occasioned by such accumulation of gas is used to actuate the device.

Hecht, Samuel L. (Richland, WA)

1984-01-01T23:59:59.000Z

194

Definition: Facts Device | Open Energy Information  

Open Energy Info (EERE)

Facts Device Facts Device Jump to: navigation, search Dictionary.png Facts Device An electronic system and other static equipment that provide control of one or more AC transmission system parameters to enhance controllability and increase power transfer capability.[1] Related Terms transmission lines, system, transmission line References ↑ [www.smartgrid.gov/sites/default/files/pdfs/description_of_assets.pdf SmartGrid.gov 'Description of Assets'] An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Facts_Device&oldid=480398" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties

195

Planar electrochemical device assembly  

DOE Patents (OSTI)

A pre-fabricated electrochemical device having a dense electrolyte disposed between an anode and a cathode preferably deposited as thin films is bonded to a porous electrically conductive support. A second porous electrically conductive support may be bonded to a counter electrode of the electrochemical device. Multiple electrochemical devices may be bonded in parallel to a single porous support, such as a perforated sheet to provide a planar array. Planar arrays may be arranged in a stacked interconnected array. A method of making a supported electrochemical device is disclosed wherein the method includes a step of bonding a pre-fabricated electrochemical device layer to an existing porous metal or porous metal alloy layer.

Jacobson; Craig P. (Lafayette, CA), Visco; Steven J. (Berkeley, CA), De Jonghe; Lutgard C. (Lafayette, CA)

2010-11-09T23:59:59.000Z

196

Planar electrochemical device assembly  

DOE Patents (OSTI)

A pre-fabricated electrochemical device having a dense electrolyte disposed between an anode and a cathode preferably deposited as thin films is bonded to a porous electrically conductive support. A second porous electrically conductive support may be bonded to a counter electrode of the electrochemical device. Multiple electrochemical devices may be bonded in parallel to a single porous support, such as a perforated sheet to provide a planar array. Planar arrays may be arranged in a stacked interconnected array. A method of making a supported electrochemical device is disclosed wherein the method includes a step of bonding a pre-fabricated electrochemical device layer to an existing porous metal or porous metal alloy layer.

Jacobson, Craig P. (Lafayette, CA); Visco, Steven J. (Berkeley, CA); De Jonghe, Lutgard C. (Lafayette, CA)

2007-06-19T23:59:59.000Z

197

Fluidic nanotubes and devices  

DOE Patents (OSTI)

Fluidic nanotube devices are described in which a hydrophilic, non-carbon nanotube, has its ends fluidly coupled to reservoirs. Source and drain contacts are connected to opposing ends of the nanotube, or within each reservoir near the opening of the nanotube. The passage of molecular species can be sensed by measuring current flow (source-drain, ionic, or combination). The tube interior can be functionalized by joining binding molecules so that different molecular species can be sensed by detecting current changes. The nanotube may be a semiconductor, wherein a tubular transistor is formed. A gate electrode can be attached between source and drain to control current flow and ionic flow. By way of example an electrophoretic array embodiment is described, integrating MEMs switches. A variety of applications are described, such as: nanopores, nanocapillary devices, nanoelectrophoretic, DNA sequence detectors, immunosensors, thermoelectric devices, photonic devices, nanoscale fluidic bioseparators, imaging devices, and so forth.

Yang, Peidong (El Cerrito, CA); He, Rongrui (El Cerrito, CA); Goldberger, Joshua (Berkeley, CA); Fan, Rong (El Cerrito, CA); Wu, Yiying (Albany, CA); Li, Deyu (Albany, CA); Majumdar, Arun (Orinda, CA)

2010-01-10T23:59:59.000Z

198

Fluidic nanotubes and devices  

DOE Patents (OSTI)

Fluidic nanotube devices are described in which a hydrophilic, non-carbon nanotube, has its ends fluidly coupled to reservoirs. Source and drain contacts are connected to opposing ends of the nanotube, or within each reservoir near the opening of the nanotube. The passage of molecular species can be sensed by measuring current flow (source-drain, ionic, or combination). The tube interior can be functionalized by joining binding molecules so that different molecular species can be sensed by detecting current changes. The nanotube may be a semiconductor, wherein a tubular transistor is formed. A gate electrode can be attached between source and drain to control current flow and ionic flow. By way of example an electrophoretic array embodiment is described, integrating MEMs switches. A variety of applications are described, such as: nanopores, nanocapillary devices, nanoelectrophoretic, DNA sequence detectors, immunosensors, thermoelectric devices, photonic devices, nanoscale fluidic bioseparators, imaging devices, and so forth.

Yang, Peidong (Berkeley, CA); He, Rongrui (El Cerrito, CA); Goldberger, Joshua (Berkeley, CA); Fan, Rong (El Cerrito, CA); Wu, Yiying (Albany, CA); Li, Deyu (Albany, CA); Majumdar, Arun (Orinda, CA)

2008-04-08T23:59:59.000Z

199

Device for cutting protrusions  

DOE Patents (OSTI)

An apparatus for clipping a protrusion of material is provided. The protrusion may, for example, be a bolt head, a nut, a rivet, a weld bead, or a temporary assembly alignment tab protruding from a substrate surface of assembled components. The apparatus typically includes a cleaver having a cleaving edge and a cutting blade having a cutting edge. Generally, a mounting structure configured to confine the cleaver and the cutting blade and permit a range of relative movement between the cleaving edge and the cutting edge is provided. Also typically included is a power device coupled to the cutting blade. The power device is configured to move the cutting edge toward the cleaving edge. In some embodiments the power device is activated by a momentary switch. A retraction device is also generally provided, where the retraction device is configured to move the cutting edge away from the cleaving edge.

Bzorgi, Fariborz M. (Knoxville, TN)

2011-07-05T23:59:59.000Z

200

Transformation inverse design  

E-Print Network (OSTI)

We present a new technique for the design of transformation-optics devices based on large-scale optimization to achieve the optimal effective isotropic dielectric materials within prescribed index bounds, which is ...

Liu, David

Note: This page contains sample records for the topic "device design properties" 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

Expert assistants for design  

Science Conference Proceedings (OSTI)

Two expert programs currently under development at the Los Alamos National Laboratory, PROCON and the Designer's Apprentice, are briefly described. Both codes define interface to simulations that provide a wide variety of information about the performance of complex devices. (BCS)

Aldridge, J.; Cerutti, J.; Draisin, W.; Steuerwalt, M.

1986-01-01T23:59:59.000Z

202

Sketch Recognition on Mobile Devices  

E-Print Network (OSTI)

Sketch recognition allows computers to understand and model hand drawn sketches and diagrams. Traditionally sketch recognition systems required a pen based PC interface, but powerful mobile devices such as tablets and smartphones can provide a new platform for sketch recognition systems. We describe a new sketch recognition library, Strontium (SrL) that combines several existing sketch recognition libraries modified to run on both personal computers and on the Android platform. We analyzed the recognition speed and accuracy implications of performing low-level shape recognition on smartphones with touch screens. We found that there is a large gap in recognition speed on mobile devices between recognizing simple shapes and more complex ones, suggesting that mobile sketch interface designers limit the complexity of their sketch domains. We also found that a low sampling rate on mobile devices can affect recognition accuracy of complex and curved shapes. Despite this, we found no evidence to suggest that using a finger as an input implement leads to a decrease in simple shape recognition accuracy. These results show that the same geometric shape recognizers developed for pen applications can be used in mobile applications, provided that developers keep shape domains simple and ensure that input sampling rate is kept as high as possible.

Lucchese, George 1987-

2012-12-01T23:59:59.000Z

203

Device Physics of Nanoscale Interdigitated Solar Cells (Poster)  

Science Conference Proceedings (OSTI)

Nanoscale interdigitated solar cell device architectures are being investigated for organic and inorganic solar cell devices. Due to the inherent complexity of these device designs quantitative modeling is needed to understand the device physics. Theoretical concepts have been proposed that nanodomains of different phases may form in polycrystalline CIGS solar cells. These theories propose that the nanodomains may form complex 3D intertwined p-n networks that enhance device performance.Recent experimental evidence offers some support for the existence of nanodomains in CIGS thin films. This study utilizes CIGS solar cells to examine general and CIGS-specific concepts in nanoscale interdigitated solar cells.

Metzger, W.; Levi, D.

2008-05-01T23:59:59.000Z

204

Property:Lab Test | Open Energy Information  

Open Energy Info (EERE)

Test Test Jump to: navigation, search Property Name Lab Test Property Type Text Pages using the property "Lab Test" Showing 25 pages using this property. (previous 25) (next 25) M MHK Technologies/AirWEC + A small scale model was tank tested MHK Technologies/Anaconda bulge tube drives turbine + The device underwent a series of tests designed to assess the fatigue life of Anaconda when deployed These tests have now been completed and finalised Time will be spent collating all the data gathered and this will then be passed to Messrs Black and Veatch the international consulting engineers that Checkmate Seaenergy and Carbon Trust have chosen to conduct a fully independent review of the technology this in preparation for an approach to prospective investors

205

SLUG HANDLING DEVICES  

DOE Patents (OSTI)

A device is described for handling fuel elements of a neutronic reactor. The device consists of two concentric telescoped contalners that may fit about the fuel element. A number of ratchet members, equally spaced about the entrance to the containers, are pivoted on the inner container and spring biased to the outer container so thnt they are forced to hear against and hold the fuel element, the weight of which tends to force the ratchets tighter against the fuel element. The ratchets are released from their hold by raising the inner container relative to the outer memeber. This device reduces the radiation hazard to the personnel handling the fuel elements.

Gentry, J.R.

1958-09-16T23:59:59.000Z

206

INTERNAL CUTTING DEVICE  

DOE Patents (OSTI)

A device is described for removing material from the interior of a hollow workpiece so as to form a true spherical internal surface in a workpiece, or to cut radial slots of an adjustable constant depth in an already established spherical internal surface. This is accomplished by a spring loaded cutting tool adapted to move axially wherein the entire force urging the tool against the workpiece is derived from the spring. Further features of importance involve the provision of a seal between the workpiece and the cutting device and a suction device for carrying away particles of removed material.

Russell, W.H. Jr.

1959-06-30T23:59:59.000Z

207

Rain sampling device  

DOE Patents (OSTI)

The present invention constitutes a rain sampling device adapted for independent operation at locations remote from the user which allows rainfall to be sampled in accordance with any schedule desired by the user. The rain sampling device includes a mechanism for directing wet precipitation into a chamber, a chamber for temporarily holding the precipitation during the process of collection, a valve mechanism for controllably releasing samples of the precipitation from the chamber, a means for distributing the samples released from the holding chamber into vessels adapted for permanently retaining these samples, and an electrical mechanism for regulating the operation of the device. 11 figures.

Nelson, D.A.; Tomich, S.D.; Glover, D.W.; Allen, E.V.; Hales, J.M.; Dana, M.T.

1991-05-14T23:59:59.000Z

208

DRAFT - Design of Radiological Survey and Sampling to Support Title Transfer or Lease of Property on the Department of Energy Oak Ridge Reservation  

SciTech Connect

The U.S. Department of Energy (DOE) owns, operates, and manages the buildings and land areas on the Oak Ridge Reservation (ORR) in Oak Ridge, Tennessee. As land and buildings are declared excess or underutilized, it is the intent of DOE to either transfer the title of or lease suitable property to the Community Reuse Organization of East Tennessee (CROET) or other entities for public use. It is DOE's responsibility, in coordination with the U.S. Environmental Protection Agency (EPA), Region 4, and the Tennessee Department of Environment and Conservation (TDEC), to ensure that the land, facilities, and personal property that are to have the title transferred or are to be leased are suitable for public use. Release of personal property must also meet site requirements and be approved by the DOE contractor responsible for site radiological control. The terms title transfer and lease in this document have unique meanings. Title transfer will result in release of ownership without any restriction or further control by DOE. Under lease conditions, the government retains ownership of the property along with the responsibility to oversee property utilization. This includes involvement in the lessee's health, safety, and radiological control plans and conduct of site inspections. It may also entail lease restrictions, such as limiting access to certain areas or prohibiting digging, drilling, or disturbing material under surface coatings. Survey and sampling requirements are generally more rigorous for title transfer than for lease. Because of the accelerated clean up process, there is an increasing emphasis on title transfers of facilities and land. The purpose of this document is to describe the radiological survey and sampling protocols that are being used for assessing the radiological conditions and characteristics of building and land areas on the Oak Ridge Reservation that contain space potentially available for title transfer or lease. After necessary surveys and sampling and laboratory analyses are completed, the data are analyzed and included in an Environmental Baseline Summary (EBS) report for title transfer or in a Baseline Environmental Analysis Report (BEAR) for lease. The data from the BEAR is then used in a Screening-Level Human Health Risk Assessment (SHHRA) or a risk calculation (RC) to assess the potential risks to future owners/occupants. If title is to be transferred, release criteria in the form of specific activity concentrations called Derived Concentration Guideline Levels (DCGLs) will be developed for the each property. The DCGLs are based on the risk model and are used with the data in the EBS to determine, with statistical confidence, that the release criteria for the property have been met. The goal of the survey and sampling efforts is to (1) document the baseline conditions of the property (real or personal) prior to title transfer or lease, (2) obtain enough information that an evaluation of radiological risks can be made, and (3) collect sufftcient data so that areas that contain minimal residual levels of radioactivity can be identified and, following radiological control procedures, be released from radiological control. (It should be noted that release from radiological control does not necessarily mean free release because DOE may maintain institutional control of the site after it is released from radiological control). To meet the goals of this document, a Data Quality Objective (DQO) process will be used to enhance data collection efficiency and assist with decision-making. The steps of the DQO process involve stating the problem, identifying the decision, identifying inputs to the decision, developing study boundaries, developing the decision rule, and optimizing the design. This document describes the DQOs chosen for surveys and sampling efforts performed for the purposes listed above. The previous version to this document focused on the requirements for radiological survey and sampling protocols that are be used for leasing. Because the primary focus at this time is on title transfer, th

Cusick L.T.

2002-09-25T23:59:59.000Z

209

A DSL approach for object memory management of small devices  

Science Conference Proceedings (OSTI)

Small devices have a specific hardware configuration. In particular, they usually include several types of memories (typically ROM, internal and external RAM, Flash memory) different in quantities and properties. We propose an object memory management ...

Kevin Marquet; Gilles Grimaud

2007-09-01T23:59:59.000Z

210

Slit injection device  

DOE Patents (OSTI)

A laser cavity electron beam injection device provided with a single elongated slit window for passing a suitably shaped electron beam and means for varying the current density of the injected electron beam.

Alger, Terry W. (Livermore, CA); Schlitt, Leland G. (Livermore, CA); Bradley, Laird P. (Livermore, CA)

1976-06-15T23:59:59.000Z

211

Multimaterial rectifying device fibers  

E-Print Network (OSTI)

Electronic and optoelectronic device processing is commonly thought to be incompatible with much simpler thermal drawing techniques used in optical fiber production. The incorporation of metals, polymer insulators, and ...

Orf, Nicholas D

2009-01-01T23:59:59.000Z

212

DEVICE RESEARCH CONFERENCE  

Science Conference Proceedings (OSTI)

Jun 23, 2004 ... Inverter in Single-Wall Carbon Nanotubes. D. Tsuya1,2, M. Suzuki 1,3, Y. Aoyagi2, K. Ishibashi1,3,. 1Advanced Device Laboratory, The Institute.

213

Proceedings of the 1968 Summer Study on Superconducting Devices and  

NLE Websites -- All DOE Office Websites (Extended Search)

selected cryogenic data notebook selected cryogenic data notebook (Digitized and put on web from the original report : BNL 10200-R, Revised August 1980) Compiled and Edited by J.E. Jensen, W.A. Tuttle, R.B. Stewart, H. Brechna and A.G. Prodell Brookhaven National Laboratory NOTE: The indexing is primitive. A useful place to start may be the Subject Index A PDF viewer is required to see most articles. Cover Page Introduction Subject Index Expanded subject index (under construction) Disclaimer Click here to go to Material Properties Important to the Design of A Large Superconducting Magnet Click Here to View the Proceedings of the 1968 Summer Study on Superconducting Devices and Accelerators Go to the Home Page of the Superconducting Magnet Division (SMD) at BNL Go to the Workshop Page at SMD Go to the Publication Page at SMD

214

Raney nickel catalytic device  

DOE Patents (OSTI)

A catalytic device for use in a conventional coal gasification process which includes a tubular substrate having secured to its inside surface by expansion a catalytic material. The catalytic device is made by inserting a tubular catalytic element, such as a tubular element of a nickel-aluminum alloy, into a tubular substrate and heat-treating the resulting composite to cause the tubular catalytic element to irreversibly expand against the inside surface of the substrate.

O' Hare, Stephen A. (Vienna, VA)

1978-01-01T23:59:59.000Z

215

Contamination control device  

DOE Patents (OSTI)

A contamination control device for use in a gas-insulated transmission bus consisting of a cylindrical center conductor coaxially mounted within a grounded cylindrical enclosure. The contamination control device is electrically connected to the interior surface of the grounded outer shell and positioned along an axial line at the lowest vertical position thereon. The contamination control device comprises an elongated metallic member having a generally curved cross-section in a first plane perpendicular to the axis of the bus and having an arcuate cross-section in a second plane lying along the axis of the bus. Each opposed end of the metallic member and its opposing sides are tapered to form a pair of generally converging and downward sloping surfaces to trap randomly moving conductive particles in the relatively field-free region between the metallic member and the interior surface of the grounded outer shell. The device may have projecting legs to enable the device to be spot welded to the interior of the grounded housing. The control device provides a high capture probability and prevents subsequent release of the charged particles after the capture thereof.

Clark, Robert M. (Ligonier, PA); Cronin, John C. (Greensburg, PA)

1977-01-01T23:59:59.000Z

216

Electronic security device  

DOE Patents (OSTI)

The present invention relates to a security device having a control box containing an electronic system and a communications loop over which the system transmits a signal. The device is constructed so that the communications loop can extend from the control box across the boundary of a portal such as a door into a sealed enclosure into which access is restricted whereby the loop must be damaged or moved in order for an entry to be made into the enclosure. The device is adapted for detecting unauthorized entries into such enclosures such as rooms or containers and for recording the time at which such entries occur for later reference. Additionally, the device detects attempts to tamper or interfere with the operation of the device itself and records the time at which such events take place. In the preferred embodiment, the security device includes a microprocessor-based electronic system and a detection module capable of registering changes in the voltage and phase of the signal transmitted over the loop. 11 figs.

Eschbach, E.A.; LeBlanc, E.J.; Griffin, J.W.

1992-03-17T23:59:59.000Z

217

Electronic security device  

DOE Patents (OSTI)

The present invention relates to a security device having a control box (12) containing an electronic system (50) and a communications loop (14) over which the system transmits a signal. The device is constructed so that the communications loop can extend from the control box across the boundary of a portal such as a door into a sealed enclosure into which access is restricted whereby the loop must be damaged or moved in order for an entry to be made into the enclosure. The device is adapted for detecting unauthorized entries into such enclosures such as rooms or containers and for recording the time at which such entries occur for later reference. Additionally, the device detects attempts to tamper or interfere with the operation of the device itself and records the time at which such events take place. In the preferred embodiment, the security device includes a microprocessor-based electronic system (50) and a detection module (72) capable of registering changes in the voltage and phase of the signal transmitted over the loop.

Eschbach, Eugene A. (Richland, WA); LeBlanc, Edward J. (Kennewick, WA); Griffin, Jeffrey W. (Kennewick, WA)

1992-01-01T23:59:59.000Z

218

Contemporary data path design optimization  

E-Print Network (OSTI)

power consumption, instead of performance, becomes the most critical concern in many data-path designs, especially for mobile devicePower consumption becomes more critical issue than performance in modern data-path designs, especially for mobile devicepower consumption. Furthermore, we also implement the PST algorithm on both ASIC and FPGA devices

Liu, Jianhua

2006-01-01T23:59:59.000Z

219

Optimization of processing and modeling issues for thin film solar cell devices: Final report, February 3, 1997--September 1, 1998  

DOE Green Energy (OSTI)

This final report describes results achieved under a 20-month NREL subcontract to develop and understand thin-film solar cell technology associated to CuInSe{sub 2} and related alloys, a-Si and its alloys, and CdTe. Modules based on all these thin films are promising candidates to meet DOE's long-range efficiency, reliability and manufacturing cost goals. The critical issues being addressed under this program are intended to provide the science and engineering basis for the development of viable commercial processes and to improve module performance. The generic research issues addressed are: (1) quantitative analysis of processing steps to provide information for efficient commercial-scale equipment design and operation; (2) device characterization relating the device performance to materials properties and process conditions; (3) development of alloy materials with different bandgaps to allow improved device structures for stability and compatibility with module design; (4) development and improved window/heterojunction layers and contacts to improve device performance and reliability; and (5) evaluation of cell stability with respect to device structure and module encapsulation.

Birkmire, R. W.; Phillips, J. E.; Shafarman, W. N.; Hegedus, S. S.; McCandless, B. E.

2000-02-28T23:59:59.000Z

220

Resonant tunneling diodes: Models and properties  

E-Print Network (OSTI)

The resonant tunneling diode (RTD) has been widely studied because of its importance in the field of nanoelectronic science and technology and its potential applications in very high speed/functionality devices and circuits. Even though much progress has been made in this regard, additional work is needed to realize the full potential of RTD’s. As research on RTD’s continues, we will try in this tutorial review to provide the reader with an overall and succinct picture of where we stand in this exciting field of research and to address the following questions: What makes RTD’s so attractive? To what extent can RTD’s be modeled for design purposes? What are the required and achievable device properties in terms of digital logic applications? To address these issues, we review the device operational principles, various modeling approaches, and major device properties. Comparisons among the various RTD physical models and major features of RTD’s, resonant interband tunneling diodes, and Esaki tunnel diodes are presented. The tutorial and analysis provided in this paper may help the reader in becoming familiar with current research efforts, as well as to examine the important aspects in further RTD developments and their circuit applications.

Jian Ping Sun; George I. Haddad; Pinaki Mazumder; Joel N. Schulman

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Sensor devices comprising field-structured composites  

DOE Patents (OSTI)

A new class of sensor devices comprising field-structured conducting composites comprising a textured distribution of conducting magnetic particles is disclosed. The conducting properties of such field-structured materials can be precisely controlled during fabrication so as to exhibit a large change in electrical conductivity when subject to any environmental influence which changes the relative volume fraction. Influences which can be so detected include stress, strain, shear, temperature change, humidity, magnetic field, electromagnetic radiation, and the presence or absence of certain chemicals. This behavior can be made the basis for a wide variety of sensor devices.

Martin, James E. (Tijeras, NM); Hughes, Robert C. (Albuquerque, NM); Anderson, Robert A. (Albuquerque, NM)

2001-02-27T23:59:59.000Z

222

GaN: Defect and Device Issues  

SciTech Connect

The role of extended and point defects, and key impurities such as C, O and H, on the electrical and optical properties of GaN is reviewed. Recent progress in the development of high reliability contacts, thermal processing, dry and wet etching techniques, implantation doping and isolation and gate insulator technology is detailed. Finally, the performance of GaN-based electronic and photonic devices such as field effect transistors, UV detectors, laser diodes and light-emitting diodes is covered, along with the influence of process-induced or grown-in defects and impurities on the device physics.

Pearton, S.J.; Ren, F.; Shul, R.J.; Zolper, J.C.

1998-11-09T23:59:59.000Z

223

Classification concepts from object oriented software design applied to engineering design  

E-Print Network (OSTI)

The objectives of this research were to study and explore Object Oriented Design, as applied in software design, and identify those principles and concepts that could be applied in engineering design to make it more efficient. An examination of the object oriented software design philosophy, methodology and programming approach was therefore carried out. The Object Oriented Design features of Functions, Properties and Inheritance were identified as having potential value in reformatting engineering classification charts, so as to make them more useful to both neophyte and experienced engineering designers. Engineering components have evolved from their basic forms into families of components and sub-components. Classification charts are often used to represent these families. In most charts, only the names of the components are provided. The design engineer, when faced with the need to choose the best form or variant of an item on the list, has to go to disparate sources to find even the most basic information to guide design decisions. In this thesis, the feature of Inheritance is proposed as a way to organize the information in these charts. Supplementary details are provided in the form of functions and properties to enable easier access of information on the operating concepts and functional characteristics of the devices within a given family. The goal is to select the member of a given family that best meets a particular need.

Krishnamurthy, Ritesh

2002-01-01T23:59:59.000Z

224

SRNL Deploys Innovative Radiation Mapping Device | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SRNL Deploys Innovative Radiation Mapping Device SRNL Deploys Innovative Radiation Mapping Device SRNL Deploys Innovative Radiation Mapping Device November 3, 2011 - 12:00pm Addthis The Savannah River National Laboratory completed successful deployments of the RadBall, a gamma radiation-mapping device. The Savannah River National Laboratory completed successful deployments of the RadBall, a gamma radiation-mapping device. AIKEN, S.C. - The Savannah River National Laboratory (SRNL), EM's national lab, has made strides with remote technology designed to reduce worker exposure while measuring radiation in contaminated areas. uilding on a successful collaboration with the United Kingdom's National Nuclear Laboratory, SRNL completed successful deployments of RadBall, a gamma radiation-mapping device, after testing the technology. The device

225

Baltimore County - Property Tax Credit for Solar and Geothermal...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here Home Savings Baltimore County - Property Tax Credit for Solar and Geothermal Devices (Maryland) Baltimore County - Property Tax Credit for Solar and Geothermal...

226

Electrical apparatus lockout device  

DOE Patents (OSTI)

A simple lockout device for electrical equipment equipped with recessed power blades is described. The device comprises a face-plate (12) having a threaded member (14) attached thereto and apertures suitable for accommodating the power blades of a piece of electrical equipment, an elastomeric nose (16) abutting the face-plate having a hole for passage of the threaded member therethrough and power blade apertures in registration with those of the face-plate, a block (20) having a recess (34) in its forward face for receiving at least a portion of the hose, a hole therein for receiving the threaded member and an integral extension (26) extending from its rear face. A thumb screw (22) suitable for turning with the hands and having internal threads suitable for engaging the threaded member attached to the face-plate is inserted into a passage in the integral extension to engage the threaded member in such a fashion that when the device is inserted over the recessed power blades of a piece of electrical equipment and the thumb screw (22) tightened, the elastomeric nose (16) is compressed between the face-plate (12) and the block (20) forcing it to expand laterally thereby securing the device in the recess and precluding the accidental or intentional energization of the piece of equipment by attachment of a power cord to the recessed power blades. Means are provided in the interval extension and the thumb screw for the attachment of a locking device (46) which will satisfy OSHA standards.

Gonzales, Rick (Chesapeake, VA)

1999-01-01T23:59:59.000Z

227

Spectral tailoring device  

DOE Patents (OSTI)

A spectral tailoring device for altering the neutron energy spectra and flux of neutrons in a fast reactor thereby selectively to enhance or inhibit the transmutation rate of a target metrical to form a product isotope. Neutron moderators, neutron filters, neutron absorbers and neutron reflectors may be used as spectral tailoring devices. Depending on the intended use for the device, a member from each of these four classes of materials could be used singularly, or in combination, to provide a preferred neutron energy spectra and flux of the neutrons in the region of the target material. In one embodiment of the invention, an assembly is provided for enhancing the production of isotopes, such as cobalt 60 and gadolinium 153. In another embodiment of the invention, a spectral tailoring device is disposed adjacent a target material which comprises long lived or volatile fission products and the device is used to shift the neutron energy spectra and flux of neutrons in the region of the fission products to preferentially transmute them to produce a less volatile fission product inventory. 6 figs.

Brager, H.R.; Schenter, R.E.; Carter, L.L.; Karnesky, R.A.

1987-08-05T23:59:59.000Z

228

Biofouling detection monitoring devices: status assessment. Final report  

SciTech Connect

An inventory of devices to detect and monitor biofouling in power plant condenser systems was prepared. The inventory was developed through a review of manufacturers' product information brochures, a general literature review, and limited personal contact with users and manufacturers. Two macrofouling and seventeen microfouling detection devices were reviewed. A summary analysis of the principal features of each device was prepared. Macrofouling devices are generally simple devices located at or near cooling water intakes. They monitor the growth of larger organisms such as mussels, barnacles, and large seaweeds. Microfouling detectors are usually located in or near the condenser tubes. They detect and monitor the growth of slime films on the tubes. Some of the devices measure changes in heat transfer or pressure drop in the condenser tubes. Other types include condenser simulators, biofilm samplers, or devices that measure the acoustic properties of the fouling films. Most devices are still in the development stage. Of the few available for general use, the type that measures heat transfer and/or pressure drop are developed to a greater degree than the other types. Recommendations for further research into development of a biofouling detection and monitoring devices include a side-by-side field comparison of selected devices, and the continued development of an effective acoustic device.

Hillman, R.E.; Anson, D.; Corliss, J.M.; Vigon, B.W.; Gray, R.H.; Bomelburg, H.J.

1985-03-01T23:59:59.000Z

229

A Nuclear Microbattery for MEMS Devices  

DOE Green Energy (OSTI)

This project was designed to demonstrate the feasibility of producing on-board power for MEMS devices using radioisotopes. MEMS is a fast growing field, with hopes for producing a wide variety of revolutionary applications, including ''labs on a chip,'' micromachined scanning tunneling microscopes, microscopic detectors for biological agents, microsystems for DNA identification, etc. Currently, these applications are limited by the lack of an on-board power source. Research is ongoing to study approaches such as fuel cells, fossil fuels, and chemical batteries, but all these concepts have limitations. For long-lived, high energy density applications, on-board radioisotope power offers the best choice. We have succeeded in producing such devices using a variety of isotopes, incorporation methods, and device geometries. These experiments have demonstrated the feasibility of using radioisotope power and that there are a variety of options available for MEMS designers. As an example of an integrated, self-powered application, we have created an oscillating cantilever beam that is capable of consistent, periodic oscillations over very long time periods without the need for refueling. Ongoing work will demonstrate that this cantilever is capable of radio frequency transmission, allowing MEMS devices to communicate with one another wirelessly. Thus, this will be the first self-powered wireless transmitter available for use in MEMS devices, permitting such applications as sensors embedded in buildings for continuous monitoring of the building performance and integrity.

Blanchard, James; Henderson, Douglass; Lal, Amit

2002-08-20T23:59:59.000Z

230

Device for absorbing mechanical shock  

DOE Patents (OSTI)

This invention is a comparatively inexpensive but efficient shock-absorbing device having special application to the protection of shipping and storage cylinders. In a typical application, two of the devices are strapped to a cylinder to serve as saddle-type supports for the cylinder during storage and to protect the cylinder in the event it is dropped during lifting or lowering operations. In its preferred form, the invention includes a hardwood plank whose grain runs in the longitudinal direction. The basal portion of the plank is of solid cross-section, whereas the upper face of the plank is cut away to form a concave surface fittable against the sidewall of a storage cylinder. The concave surface is divided into a series of segments by transversely extending, throughgoing relief slots. A layer of elastomeric material is positioned on the concave face, the elastomer being extrudable into slots when pressed against the segments by a preselected pressure characteristic of a high-energy impact. The compressive, tensile, and shear properties of the hardwood and the elastomer are utilized in combination to provide a surprisingly high energy-absorption capability.

Newlon, Charles E. (Knoxville, TN)

1980-01-01T23:59:59.000Z

231

Device for absorbing mechanical shock  

DOE Patents (OSTI)

This invention is a comparatively inexpensive but efficient shock-absorbing device having special application to the protection of shipping and storage cylinders. In a typical application, two of the devices are strapped to a cylinder to serve as saddle-type supports for the cylinder during storage and to protect the cylinder in the event it is dropped during lifting or lowering operations. In its preferred form, the invention includes a hardwood plank whose grain runs in the longitudinal direction. The basal portion of the plank is of solid cross-section, whereas the upper face of the plank is cut away to form a concave surface fittable against the sidewall of a storage cylinder. The concave surface is divided into a series of segments by transversely extending, throughgoing relief slots. A layer of elastomeric material is positioned on the concave face, the elastomer being extrudable into slots when pressed against the segments by a preselected pressure characteristic of a high-energy impact. The compressive, tensile, and shear properties of the hardwood and the elastomer are utilized in combination to provide a surprisingly high energy-absorption capability.

Newlon, C.E.

1979-08-29T23:59:59.000Z

232

Mechanical characterization and in vivo operation of an implantable drug delivery MEMS device  

E-Print Network (OSTI)

The goal of this thesis was to advance an implantable drug delivery MEMS (MicroElectroMechanical Systems) device developed in our laboratory. This device was designed to locally deliver multiple substances in complex release ...

Li, Yawen, 1972-

2005-01-01T23:59:59.000Z

233

Carotid collar : a device for auscultory detection of carotid artery stenosis  

E-Print Network (OSTI)

The carotid collar is a hardware device designed to aid in detecting carotid artery stenosis, a disease that increases the risk of stroke. This device consists of three electronic stethoscopes that record heart and carotid ...

Gift, Jason Ayres, 1981-

2003-01-01T23:59:59.000Z

234

Pendulum detector testing device  

DOE Patents (OSTI)

A detector testing device is described which provides consistent, cost-effective, repeatable results. The testing device is primarily constructed of PVC plastic and other non-metallic materials. Sensitivity of a walk-through detector system can be checked by: (1) providing a standard test object simulating the mass, size and material content of a weapon or other contraband, (2) suspending the test object in successive positions, such as head, waist and ankle levels, simulating where the contraband might be concealed on a person walking through the detector system; and (3) swinging the suspended object through each of the positions, while operating the detector system and observing its response. The test object is retained in a holder in which the orientation of the test device or target can be readily changed, to properly complete the testing requirements. 5 figs.

Gonsalves, J.M.

1997-09-30T23:59:59.000Z

235

Electrochromic optical switching device  

DOE Patents (OSTI)

An electrochromic cell is disclosed which comprises an electrochromic layer, a polymerizable organo-sulfur layer which comprises the counter electrode of the structure, and an ionically conductive electronically insulating material which comprises the separator between the electrodes. In a preferred embodiment, both the separator and the organo-sulfur electrode (in both its charged and uncharged states) are transparent either to visible light or to the entire solar spectrum. An electrochromic device is disclosed which comprises such electrodes and separator encased in glass plates on the inner surface of each of which is formed a transparent electrically conductive film in respective electrical contact with the electrodes which facilitates formation of an external electrical connection or contact to the electrodes of the device to permit electrical connection of the device to an external potential source. 3 figs.

Lampert, C.M.; Visco, S.J.

1992-08-25T23:59:59.000Z

236

Pendulum detector testing device  

DOE Patents (OSTI)

A detector testing device which provides consistent, cost-effective, repeatable results. The testing device is primarily constructed of PVC plastic and other non-metallic materials. Sensitivity of a walk-through detector system can be checked by: 1) providing a standard test object simulating the mass, size and material content of a weapon or other contraband, 2) suspending the test object in successive positions, such as head, waist and ankle levels, simulating where the contraband might be concealed on a person walking through the detector system; and 3) swinging the suspended object through each of the positions, while operating the detector system and observing its response. The test object is retained in a holder in which the orientation of the test device or target can be readily changed, to properly complete the testing requirements.

Gonsalves, John M. (Modesto, CA)

1997-01-01T23:59:59.000Z

237

Electrochromic optical switching device  

DOE Patents (OSTI)

An electrochromic cell is disclosed which comprises an electrochromic layer, a polymerizable organo-sulfur layer which comprises the counter electrode of the structure, and an ionically conductive electronically insulating material which comprises the separator between the electrodes. In a preferred embodiment, both the separator and the organo-sulfur electrode (in both its charged and uncharged states) are transparent either to visible light or to the entire solar spectrum. An electrochromic device is disclosed which comprises such electrodes and separator encased in glass plates on the inner surface of each of which is formed a transparent electrically conductive film in respective electrical contact with the electrodes which facilitates formation of an external electrical connection or contact to the electrodes of the device to permit electrical connection of the device to an external potential source.

Lampert, Carl M. (El Sobrante, CA); Visco, Steven J. (Berkeley, CA)

1992-01-01T23:59:59.000Z

238

Applying enterprise architectures and technology to the embedded devices domain  

Science Conference Proceedings (OSTI)

Large-scale networks of embedded devices present a challenge in terms of performance management and other quality of service issues, such as security or transaction management. Current commercial off-the-shelf software designed for use in the Internet ... Keywords: GPRS, GSM, SCADA, clustering, embedded device, enterprise architecture, failover, middleware

Ken Taylor; Doug Palmer

2003-01-01T23:59:59.000Z

239

E2I EPRI Assessment Offshore Wave Energy Conversion Devices  

E-Print Network (OSTI)

of offshore wave power to provide efficient, reliable, cost-effective, and environmentally friendly electrical definition study in CY 2004. This study will produce system designs for wave energy conversion device power plants, performance estimate and economic assessments for one site ­ wave energy conversion device per

240

Umbrella file system: Storage management across heterogeneous devices  

Science Conference Proceedings (OSTI)

With the advent of and recent developments in Flash storage, device characteristic diversity is becoming both more prevalent and more distinct. In this article, we describe the Umbrella File System (UmbrellaFS), a stackable file system designed to provide ... Keywords: Device characteristics, flash drives, namespaces, policy-driven storage

John A. Garrison; A. L. Narasimha Reddy

2009-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

REMOTE CONTROLLED SWITCHING DEVICE  

DOE Patents (OSTI)

An electrical switching device which can be remotely controlled and in which one or more switches may be accurately operated at predetermined times or with predetermined intervening time intervals is described. The switching device consists essentially of a deck, a post projecting from the deck at right angles thereto, cam means mounted for rotation around said posts and a switch connected to said deck and actuated by said cam means. Means is provided for rotating the cam means at a constant speed and the switching apparatus is enclosed in a sealed container with external adjusting means and electrical connection elements.

Hobbs, J.C.

1959-02-01T23:59:59.000Z

242

EXPERIMENTAL ANIMAL WATERING DEVICE  

SciTech Connect

A device for watering experimental animals confined in a battery of individual plastic enclosures is described. It consists of a rectangular plastic enclosure having a plurality of fluid-tight compartments, each with a drinking hole near the bottom and a filling hole on the top. The enclosure is immersed in water until filled, its drinking holes sealed with a strip of tape, and it is then placed in the battery. The tape sealing prevents the flow of water from the device, but permits animals to drink by licking the drinking holes. (AEC)

Finkel, M.P.

1964-04-01T23:59:59.000Z

243

Precision alignment device  

DOE Patents (OSTI)

Apparatus for providing automatic alignment of beam devices having an associated structure for directing, collimating, focusing, reflecting, or otherwise modifying the main beam. A reference laser is attached to the structure enclosing the main beam producing apparatus and produces a reference beam substantially parallel to the main beam. Detector modules containing optical switching devices and optical detectors are positioned in the path of the reference beam and are effective to produce an electrical output indicative of the alignment of the main beam. This electrical output drives servomotor operated adjustment screws to adjust the position of elements of the structure associated with the main beam to maintain alignment of the main beam. 5 figs.

Jones, N.E.

1988-03-10T23:59:59.000Z

244

Phononic crystal devices  

DOE Patents (OSTI)

Phononic crystals that have the ability to modify and control the thermal black body phonon distribution and the phonon component of heat transport in a solid. In particular, the thermal conductivity and heat capacity can be modified by altering the phonon density of states in a phononic crystal. The present invention is directed to phononic crystal devices and materials such as radio frequency (RF) tags powered from ambient heat, dielectrics with extremely low thermal conductivity, thermoelectric materials with a higher ratio of electrical-to-thermal conductivity, materials with phononically engineered heat capacity, phononic crystal waveguides that enable accelerated cooling, and a variety of low temperature application devices.

El-Kady, Ihab F. (Albuquerque, NM); Olsson, Roy H. (Albuquerque, NM)

2012-01-10T23:59:59.000Z

245

Localized electrical fine tuning of passive microwave and radio frequency devices  

DOE Patents (OSTI)

A method and apparatus for the localized electrical fine tuning of passive multiple element microwave or RF devices in which a nonlinear dielectric material is deposited onto predetermined areas of a substrate containing the device. An appropriate electrically conductive material is deposited over predetermined areas of the nonlinear dielectric and the signal line of the device for providing electrical contact with the nonlinear dielectric. Individual, adjustable bias voltages are applied to the electrically conductive material allowing localized electrical fine tuning of the devices. The method of the present invention can be applied to manufactured devices, or can be incorporated into the design of the devices so that it is applied at the time the devices are manufactured. The invention can be configured to provide localized fine tuning for devices including but not limited to coplanar waveguides, slotline devices, stripline devices, and microstrip devices.

Findikoglu, Alp T. (Los Alamos, NM)

2001-04-10T23:59:59.000Z

246

Energy effectiveness of simultaneous heat and mass exchange devices  

E-Print Network (OSTI)

Simultaneous heat and mass exchange devices such as cooling towers, humidifiers and dehumidifiers are widely used in the power generation, desalination, air conditioning, and refrigeration industries. For design and rating ...

Narayan, G. Prakash

2010-01-01T23:59:59.000Z

247

Reducing 3G energy consumption on mobile devices  

E-Print Network (OSTI)

The 3G wireless interface is a significant contributor to battery drain on mobile devices. This paper describes the design, implementation, and experimental evaluation of methods to reduce the energy consumption of the 3G ...

Deng, Shuo

2012-01-01T23:59:59.000Z

248

Medical Device Reliability BIOMATERIALS  

E-Print Network (OSTI)

of the U.S. healthcare industry, with annual sales exceeding $13 billion. In the past decade, nearly 3 to those found in explanted devices. Multilayer ceramic capacitors are the focus, as changes-grade ceramic capacitors. The Use Conditions Summary and the Failure Mode Effects Analysis are currently under

249

RADIO RANGING DEVICE  

DOE Patents (OSTI)

A description is given of a super-regenerative oscillator ranging device provided with radiating and receiving means and being capable of indicating the occurrence of that distance between itself and a reflecting object which so phases the received echo of energy of a preceding emitted oscillation that the intervals between oscillations become uniform.

Bogle, R.W.

1960-11-22T23:59:59.000Z

250

RADIO RANGING DEVICE  

DOE Patents (OSTI)

A radio ranging device is described. It utilizes a super regenerative detector-oscillator in which echoes of transmitted pulses are received in proper phase to reduce noise energy at a selected range and also at multiples of the selected range.

Nieset, R.T.

1961-05-16T23:59:59.000Z

251

Multiple gap photovoltaic device  

DOE Patents (OSTI)

A multiple gap photovoltaic device having a transparent electrical contact adjacent a first cell which in turn is adjacent a second cell on an opaque electrical contact, includes utilizing an amorphous semiconductor as the first cell and a crystalline semiconductor as the second cell.

Dalal, Vikram L. (Newark, DE)

1981-01-01T23:59:59.000Z

252

LOADING AND UNLOADING DEVICE  

DOE Patents (OSTI)

A device for loading and unloading fuel rods into and from a reactor tank through an access hole includes parallel links carrying a gripper. These links enable the gripper to go through the access hole and then to be moved laterally from the axis of the access hole to the various locations of the fuel rods in the reactor tank.

Treshow, M.

1960-08-16T23:59:59.000Z

253

ANNULAR IMPACTOR SAMPLING DEVICE  

DOE Patents (OSTI)

A high-rate air sampler capable of sampling alphaemitting particles as small as 0.5 microns is described. The device is a cylindrical shaped cup that fits in front of a suction tube and which has sticky grease coating along its base. Suction forces contaminated air against the periodically monitored particle absorbing grease.

Tait, G.W.C.

1959-03-31T23:59:59.000Z

254

Electron beam device  

DOE Patents (OSTI)

This patent pertains to an electron beam device in which a hollow target is symmetrically irradiated by a high energy, pulsed electron beam about its periphery and wherein the outer portion of the target has a thickness slightly greater than required to absorb the electron beam pulse energy. (auth)

Beckner, E.H.; Clauser, M.J.

1975-08-12T23:59:59.000Z

255

Energy absorption device  

DOE Patents (OSTI)

An energy absorbing device comprising two metal elements slip-fit together. The inner element has an enlarged portion thereupon which is forced, by a force overload to travel along the inside of the outer tube. The energy of the overload is absorbed by the forces of friction and deformation as the two elements are telescoped together.

Hertelendy, N.A.

1987-01-27T23:59:59.000Z

256

Seal device for ferromagnetic containers  

DOE Patents (OSTI)

A temporary seal or patch assembly prevents the escape of contents, e.g., fluids and the like, from within a container having a breach therethrough until the contents can be removed and/or a repair effected. A frame that supports a sealing bladder can be positioned over the breach and the frame is then attached to the container surface, which must be of a ferromagnet material, by using switchable permanent magnets. The permanent magnets are designed to have a first condition that is not attracted to the ferromagnetic surface and a second conditions whereby the magnets are attracted to the surface with sufficient force to support the seal assembly on the surface. Latching devices may be attached to the frame and engage the container surface with hardened pins to prevent the lateral movement of the seal assembly along the container surface from external forces such as fluid drag or gravity.

Meyer, Ross E. (Los Alamos, NM); Jason, Andrew J. (Los Alamos, NM)

1994-01-01T23:59:59.000Z

257

Self-Assembly of Nanostructured Electronic Devices (454th Brookhaven Lecture)  

Science Conference Proceedings (OSTI)

Given suitable atmospheric conditions, water vapor from the air will crystallize into beautiful structures: snowflakes. Nature provides many other examples of spontaneous organization of materials into regular patterns, which is a process known as self-assembly. Since self-assembly works at all levels, it can be a useful tool for organizing materials on the nanometer scale. In particular, self-assembly provides a precise method for designing materials with improved electronic properties, thereby enabling advances in semiconductor electronics and solar devices. On Wednesday, December 16, at 4 p.m. in Berkner Hall, Charles Black of the Center for Functional Nanomaterials (CFN) will explore this topic during the 454th Brookhaven Lecture, entitled “Self-Assembly of Nanostructured Electronic Devices.” Refreshments will be offered before and after the lecture. To attend this open-to-the-public event, visitors to the Lab ages 16 and older must present photo ID at the Main Gate. During this talk, Dr. Black will discuss examples of how self-assembly is being integrated into semiconductor microelectronics, as advances in the ability to define circuit elements at higher resolution have fueled more than 40 years of performance improvements. Self-assembly also promises advances in the performance of solar devices; thus he will describe his group’s recent results with nanostructured photovoltaic devices.

Black, Charles (Ph.D., Center for Functional Nanomaterials)

2009-12-16T23:59:59.000Z

258

Structure-property relationships in radical-cation (electron-donor molecule) and anion-based (including fullerides) organic superconductors and their use in the design of new materials  

Science Conference Proceedings (OSTI)

The presently known structure-property relations that have been developed for organic superconductors based on the ET molecule (b- phases and k-phases), and the C{sub 60}-anion-based fullerides, and their use in the structural design of new superconducting materials are discussed. 12 refs, 11 figs, 4 tabs.

Williams, J.M.; Carlson, K.D.; Kini, A.M. [Argonne National Lab., IL (United States)

1993-08-01T23:59:59.000Z

259

NSLS-II Design and Performance  

NLE Websites -- All DOE Office Websites (Extended Search)

NSLS-II Design & Performance NSLS-II CD-0 Proposal Preliminary Design Report (PDR) Conceptual Design Report (CDR) Source Properties (.pdf) Cell section Last Modified: April 2,...

260

MHK Technologies/Nesheim Oscillating Device | Open Energy Information  

Open Energy Info (EERE)

Nesheim Oscillating Device Nesheim Oscillating Device < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Nesheim Oscillating Device.jpg Technology Profile Primary Organization Ing Arvid Nesheim Technology Resource Click here Wave Technology Type Click here Oscillating Wave Surge Converter Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Nesheim osillating device is composed of an annular shaped floater a floating column a universal joint mechanism and an electrical generator The universal joint mechanism enables relative upwards downwards and pivotal movement between the floater and column The column is provided with an air chamber to provide buoyancy The lower end of the column is connected to an anchor on the seafloor The design of the device enables both vertical and pivotal movement between the floater and the column These features facilitate high efficiency energy capture as the device can capture different forms of motion e g vertical and horizontal The device is attached to a modular buoy system that can be arranged to minimize the mooring line forces and horizontal displacement of the device The performance of the device may be remotely monitored and controlled via a subsea cable

Note: This page contains sample records for the topic "device design properties" 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 Platform Benchmarks - A Methodology for Evaluating Mobile Computing Devices  

E-Print Network (OSTI)

this document is provided solely for use in connection with Transmeta products, and Transmeta reserves all rights in and to such information and the products discussed herein. This document should not be construed as transferring or granting a license to any intellectual property rights, whether express, implied, arising through estoppel or otherwise. Except as may be agreed in writing by Transmeta, all Transmeta products are provided "as is" and without a warranty of any kind, and Transmeta hereby disclaims all warranties, express or implied, relating to Transmeta's products, including, but not limited to, the implied warranties of merchantability, fitness for a particular purpose and non-infringement of third party intellectual property. Transmeta products may contain design defects or errors which may cause the products to deviate from published specifications, and Transmeta documents may contain inaccurate information. Transmeta makes no representations or warranties with respect to the accuracy or completeness of the information contained in this document, and Transmeta reserves the right to change product descriptions and product specifications at any time, without notice. Transmeta products have not been designed, tested, or manufactured for use in any application where failure, malfunction, or inaccuracy carries a risk of death, bodily injury, or damage to tangible property, including, but not limited to, use in factory control systems, medical devices or facilities, nuclear facilities, aircraft, watercraft or automobile navigation or communication, emergency systems, or other applications with a similar degree of potential hazard. Transmeta reserves the right to discontinue any product or product document at any time without notice, or to change any feature or ...

Daniel Mckenna; Transmeta Corporation

2000-01-01T23:59:59.000Z

262

Optimization of the configuration and working fluid for a micro heat pipe thermal control device  

E-Print Network (OSTI)

Continued development of highly compact and powerful electronic components has led to the need for a simple and effective method for controlling the thermal characteristics of these devices. One proposed method for thermal control involves the use of a micro heat pipe system containing a working fluid with physical properties having been speciffcally selected such that the heat pipes, as a whole, vary in effective thermal conductance, thereby providing a level of temperature regulation. To further explore this possibility, a design scenario with appropriate constraints was established and a model developed to solve for the effective thermal conductance of individual heat pipes as a function of evaporator-end temperature. From the results of this analysis, several working fluids were identified and selected from a list over thirteen hundred that were initially analyzed. Next, a thermal circuit model was developed that translated the individual heat pipe operating characteristics into the system as a whole to determine the system level effects. It was found that none of the prospective fluids could completely satisfy the established design requirements to regulate the device temperature over the entire range of operating conditions. This failure to fully satisfy design requirements was due, in large part, to the highly constrained nature of problem definition. Several fluids, however, did provide for an improved level of thermal control when compared to the unmodified design. Suggestions for improvements that may lead to enhanced levels of thermal control are offered as well as areas that are in need of further research.

Coughlin, Scott Joseph

2005-12-01T23:59:59.000Z

263

Gunshot triangulation device testing  

NLE Websites -- All DOE Office Websites (Extended Search)

Gunshot triangulation device testing Gunshot triangulation device testing Report to the Fermilab Community Advisory Board, Oct. 28, 2010 The Fermilab security director outlined for the board last month a recurring problem of people shooting guns near the edges of the laboratory and bullets coming onto the site. Fermilab is installing a system to triangulate the gunshots to improve police response time. This will require a set-up calibration of two dozen gunshots during a total of 6 minutes at the laboratory site. The board was asked for recommendations about how and whom to inform of the test firing. In response to the board discussion, Fermilab plans to take the following actions:  The test firing will occur during the mid-day of a week day to minimize the number of residents

264

PRESSURE SENSING DEVICE  

DOE Patents (OSTI)

This device is primarily useful as a switch which is selectively operable to actuate in response to either absolute or differential predetermined pressures. The device generally comprises a pressure-tight housing divided by a movable impermeable diaphragm into two chambers, a reference pressure chamber and a bulb chamber containing the switching means and otherwise filled with an incompressible non-conducting fluid. The switch means comprises a normally collapsed bulb having an electrically conductive outer surface and a vent tube leading to the housing exterior. The normally collapsed bulb is disposed such that upon its inflation, respensive to air inflow from the vent, two contacts fixed within the bulb chamber are adapted to be electrically shorted by the conducting outer surface of the bulb.

Pope, K.E.

1959-12-15T23:59:59.000Z

265

Nuclear reactor safety device  

DOE Patents (OSTI)

A safety device is disclosed for use in a nuclear reactor for axially repositioning a control rod with respect to the reactor core in the event of an upward thermal excursion. Such safety device comprises a laminated helical ribbon configured as a tube-like helical coil having contiguous helical turns with slidably abutting edges. The helical coil is disclosed as a portion of a drive member connected axially to the control rod. The laminated ribbon is formed of outer and inner laminae. The material of the outer lamina has a greater thermal coefficient of expansion than the material of the inner lamina. In the event of an upward thermal excursion, the laminated helical coil curls inwardly to a smaller diameter. Such inward curling causes the total length of the helical coil to increase by a substantial increment, so that the control rod is axially repositioned by a corresponding amount to reduce the power output of the reactor.

Hutter, Ernest (Wilmette, IL)

1986-01-01T23:59:59.000Z

266

Tire deflation device  

Science Conference Proceedings (OSTI)

A tire deflation device includes (1) a component having a plurality of bores, (2) a plurality of spikes removably insertable into the plurality of bores and (3) a keeper within each among the plurality of bores, the keeper being configured to contact a sidewall surface of a spike among the plurality of spikes and to exert force upon the sidewall surface. In an embodiment, the tire deflation device includes (a) a component including a bore in a material, the bore including a receiving region, a sidewall surface and a base surface, (b) a channel extending from the sidewall surface into the material, (c) a keeper having a first section housed within the channel and a second section which extends past the sidewall surface into the receiving region, and (d) a spike removably insertable into the bore.

Barker, Stacey G. (Idaho Falls, ID)

2010-01-05T23:59:59.000Z

267

GAS DISCHARGE DEVICES  

DOE Patents (OSTI)

An apparatus utilized in introducing tritium gas into envelope of a gas discharge device for the purpose f maintaining the discharge path in ionized condition is described. ln addition to the cathode and anode, the ischarge device contains a zirconium or tantalum ilament arranged for external excitation and a metallic seed containing tritium, and also arranged to have a current passed through it. Initially, the zirconium or tantalum filament is vaporized to deposit its material adjacent the main discharge region. Then the tritium gas is released and, due to its affinity for the first released material, it deposits in the region of the main discharge where it is most effective in maintaining the discharge path in an ionized condition.

Jefferson, S.

1958-11-11T23:59:59.000Z

268

Regenerative braking device  

DOE Patents (OSTI)

Disclosed are several embodiments of a regenerative braking device for an automotive vehicle. The device includes a plurality of rubber rollers (24, 26) mounted for rotation between an input shaft (14) connectable to the vehicle drivetrain and an output shaft (16) which is drivingly connected to the input shaft by a variable ratio transmission (20). When the transmission ratio is such that the input shaft rotates faster than the output shaft, the rubber rollers are torsionally stressed to accumulate energy, thereby slowing the vehicle. When the transmission ratio is such that the output shaft rotates faster than the input shaft, the rubber rollers are torsionally relaxed to deliver accumulated energy, thereby accelerating or driving the vehicle.

Hoppie, Lyle O. (Birmingham, MI)

1982-01-12T23:59:59.000Z

269

Inertial energy storage device  

DOE Patents (OSTI)

The inertial energy storage device of the present invention comprises a composite ring formed of circumferentially wound resin-impregnated filament material, a flanged hollow metal hub concentrically disposed in the ring, and a plurality of discrete filament bandsets coupling the hub to the ring. Each bandset is formed of a pair of parallel bands affixed to the hub in a spaced apart relationship with the axis of rotation of the hub being disposed between the bands and with each band being in the configuration of a hoop extending about the ring along a chordal plane thereof. The bandsets are disposed in an angular relationship with one another so as to encircle the ring at spaced-apart circumferential locations while being disposed in an overlapping relationship on the flanges of the hub. The energy storage device of the present invention has the capability of substantial energy storage due to the relationship of the filament bands to the ring and the flanged hub.

Knight, Jr., Charles E. (Knoxville, TN); Kelly, James J. (Oak Ridge, TN); Pollard, Roy E. (Powell, TN)

1978-01-01T23:59:59.000Z

270

Light modulating device  

DOE Patents (OSTI)

In a device for transmitting light, means for controlling the transmissivity of the device, including a ceramic, reversibly electrochromic, crystalline element having a highly reflective state when injected with electrons and charge compensating ions and a highly transmissive state when the electrons and ions are removed, the crystalline element being characterized as having a reflectivity of at least 50% in the reflective state and not greater than 10% in the transmissive state, and means for modulating the crystalline element between the reflective and transmissive states by injecting ions into the crystalline element in response to an applied electrical current of a first polarity and removing the ions in response to an applied electrical current of a second polarity are disclosed. 1 fig.

Rauh, R.D.; Goldner, R.B.

1989-12-26T23:59:59.000Z

271

Wire brush fastening device  

DOE Patents (OSTI)

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus.

Meigs, Richard A. (East Concord, NY)

1995-01-01T23:59:59.000Z

272

Support and maneuvering device  

DOE Patents (OSTI)

A support and maneuvering device includes an elongated flexible inflatable enclosure having a fixed end and a movable end. The movable end is collapsible toward the fixed end to a contracted position when the enclosure is in a noninflated condition. Upon inflation, the movable end is movable away from the fixed end to an extended position. The movable end includes means for mounting an article such as a solar reflector thereon. The device also includes a plurality of position controlling means disposed about the movable end to effect adjusting movement of portions thereof by predetermined amounts and for controlling an angle at which the article disposed at the movable end is oriented. The plurality of position controlling means limits a suitable number degrees of freedom of the movable end for transmitting a steering motion thereto and for controlling the position thereof. 9 figs.

Wood, R.L.

1987-03-23T23:59:59.000Z

273

Microelectromechanical safe arm device  

SciTech Connect

Microelectromechanical (MEM) apparatus and methods for operating, for preventing unintentional detonation of energetic components comprising pyrotechnic and explosive materials, such as air bag deployment systems, munitions and pyrotechnics. The MEM apparatus comprises an interrupting member that can be moved to block (interrupt) or complete (uninterrupt) an explosive train that is part of an energetic component. One or more latching members are provided that engage and prevent the movement of the interrupting member, until the one or more latching members are disengaged from the interrupting member. The MEM apparatus can be utilized as a safe and arm device (SAD) and electronic safe and arm device (ESAD) in preventing unintentional detonations. Methods for operating the MEM apparatus include independently applying drive signals to the actuators coupled to the latching members, and an actuator coupled to the interrupting member.

Roesler, Alexander W. (Tijeras, NM)

2012-06-05T23:59:59.000Z

274

Wire brush fastening device  

DOE Patents (OSTI)

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus.

Meigs, R.A.

1993-08-31T23:59:59.000Z

275

Support and maneuvering device  

DOE Patents (OSTI)

A support and maneuvering device includes an elongated flexible inflatable enclosure having a fixed end and a movable end. The movable end is collapsible toward the fixed end to a contracted position when the enclosure is in a noninflated condition. Upon inflation, the movable end is movable away from the fixed end to an extended position. The movable end includes means for mounting an article such as a solar reflector thereon. The device also includes a plurality of position controlling means disposed about the movable end to effect adjusting movement of portions thereof by predetermined amounts and for controlling an angle at which the article disposed at the movable end is oriented. The plurality of position controlling means limits a suitable number degrees of freedom of the movable end for transmitting a steering motion thereto and for controlling the position thereof.

Wood, Richard L. (Arvada, CO)

1988-01-01T23:59:59.000Z

276

Wire brush fastening device  

DOE Patents (OSTI)

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus. 13 figs.

Meigs, R.A.

1995-09-19T23:59:59.000Z

277

Cable shield connecting device  

DOE Patents (OSTI)

A cable shield connecting device for installation on a high voltage cable of the type having a metallic shield, the device including a relatively conformable, looped metal bar for placement around a bared portion of the metallic shield to extend circumferentially around a major portion of the circumference of the metallic shield while being spaced radially therefrom, a plurality of relatively flexible metallic fingers affixed to the bar, projecting from the bar in an axial direction and spaced circumferentially along the bar, each finger being attached to the metallic shield at a portion located remote from the bar to make electrical contact with the metallic shield, and a connecting conductor integral with the bar.

Silva, Frank A. (Basking Ridge, NJ)

1979-01-01T23:59:59.000Z

278

Nano-Sim: A Step Wise Equivalent Conductance based Statistical Simulator for Nanotechnology Circuit Design  

Science Conference Proceedings (OSTI)

New nanotechnology based devices are replacing CMOS devices to overcome CMOS technology's scaling limitations. However, many such devices exhibit non-monotonic I-V characteristics and uncertain properties which lead to the negative differential resistance ...

Bharat Sukhwani; Uday Padmanabhan; Janet M. Wang

2005-03-01T23:59:59.000Z

279

Hybrid electroluminescent devices  

DOE Patents (OSTI)

A hybrid electroluminescent (EL) device comprises at least one inorganic diode element and at least one organic EL element that are electrically connected in series. The absolute value of the breakdown voltage of the inorganic diode element is greater than the absolute value of the maximum reverse bias voltage across the series. The inorganic diode element can be a power diode, a Schottky barrier diode, or a light-emitting diode.

Shiang, Joseph John (Niskayuna, NY); Duggal, Anil Raj (Niskayuna, NY); Michael, Joseph Darryl (Schenectady, NY)

2010-08-03T23:59:59.000Z

280

Battery loading device  

SciTech Connect

A battery loading device for loading a power source battery, built in small appliances having a battery loading chamber for selectively loading a number of cylindrical unit batteries or a one body type battery having the same voltage as a number of cylindrical unit batteries, whereby the one body type battery and the battery loading chamber are shaped similarly and asymmetrically in order to prevent the one body type battery from being inserted in the wrong direction.

Phara, T.; Suzuki, M.

1984-08-28T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Residual gas analysis device  

SciTech Connect

A system is provided for testing the hermeticity of a package, such as a microelectromechanical systems package containing a sealed gas volume, with a sampling device that has the capability to isolate the package and breach the gas seal connected to a pulse valve that can controllably transmit small volumes down to 2 nanoliters to a gas chamber for analysis using gas chromatography/mass spectroscopy diagnostics.

Thornberg, Steven M. (Peralta, NM)

2012-07-31T23:59:59.000Z

282

Thermophotovoltaic energy conversion device  

DOE Patents (OSTI)

A thermophotovoltaic device and a method for making the thermophotovoltaic device are disclosed. The device includes an n-type semiconductor material substrate having top and bottom surfaces, a tunnel junction formed on the top surface of the substrate, a region of active layers formed on top of the tunnel junction and a back surface reflector (BSR). The tunnel junction includes a layer of heavily doped n-type semiconductor material that is formed on the top surface of the substrate and a layer of heavily doped p-type semiconductor material formed on the n-type layer. An optional pseudomorphic layer can be formed between the n-type and p-type layers. A region of active layers is formed on top of the tunnel junction. This region includes a base layer of p-type semiconductor material and an emitter layer of n-type semiconductor material. An optional front surface window layer can be formed on top of the emitter layer. An optional interference filter can be formed on top of the emitter layer or the front surface window layer when it is used. 1 fig.

Charache, G.W.; Baldasaro, P.F.; Egley, J.L.

1998-05-19T23:59:59.000Z

283

Sectional device handling tool  

DOE Patents (OSTI)

Apparatus for remotely handling a device in an irradiated underwater environment includes a plurality of tubular sections interconnected end-to-end to form a handling structure, the bottom section being adapted for connection to the device. A support section is connected to the top tubular section and is adapted to be suspended from an overhead crane. Each section is flanged at its opposite ends. Axially retractable bolts in each bottom flange are threadedly engageable with holes in the top flange of an adjacent section, each bolt being biased to its retracted position and retained in place on the bottom flange. Guide pins on each top flange cooperate with mating holes on adjacent bottom flanges to guide movement of the parts to the proper interconnection orientation. Each section carries two hydraulic line segments provided with quick-connect/disconnect fittings at their opposite ends for connection to the segments of adjacent tubular sections upon interconnection thereof to form control lines which are connectable to the device and to an associated control console.

Candee, Clark B. (Monroeville, PA)

1988-07-12T23:59:59.000Z

284

Thermophotovoltaic energy conversion device  

DOE Patents (OSTI)

A thermophotovoltaic device and a method for making the thermophotovoltaic device. The device includes an n-type semiconductor material substrate having top and bottom surfaces, a tunnel junction formed on the top surface of the substrate, a region of active layers formed on top of the tunnel junction and a back surface reflector (BSR). The tunnel junction includes a layer of heavily doped n-type semiconductor material that is formed on the top surface of the substrate and a layer of heavily doped p-type semiconductor material formed on the n-type layer. An optional pseudomorphic layer can be formed between the n-type and p-type layers. A region of active layers is formed on top of the tunnel junction. This region includes a base layer of p-type semiconductor material and an emitter layer of n-type semiconductor material. An optional front surface window layer can be formed on top of the emitter layer. An optional interference filter can be formed on top of the emitter layer or the front surface window layer when it is used.

Charache, Greg W. (Clifton Park, NY); Baldasaro, Paul F. (Clifton Park, NY); Egley, James L. (Burnt Hills, NY)

1998-01-01T23:59:59.000Z

285

Plasma jet ignition device  

DOE Patents (OSTI)

An ignition device of the plasma jet type is disclosed. The device has a cylindrical cavity formed in insulating material with an electrode at one end. The other end of the cylindrical cavity is closed by a metal plate with a small orifice in the center which plate serves as a second electrode. An arc jumping between the first electrode and the orifice plate causes the formation of a highly-ionized plasma in the cavity which is ejected through the orifice into the engine cylinder area to ignite the main fuel mixture. Two improvements are disclosed to enhance the operation of the device and the length of the plasma plume. One improvement is a metal hydride ring which is inserted in the cavity next to the first electrode. During operation, the high temperature in the cavity and the highly excited nature of the plasma breaks down the metal hydride, liberating hydrogen which acts as an additional fuel to help plasma formation. A second improvement consists of a cavity insert containing a plurality of spaced, metal rings. The rings act as secondary spark gap electrodes reducing the voltage needed to maintain the initial arc in the cavity.

McIlwain, Michael E. (Franklin, MA); Grant, Jonathan F. (Wayland, MA); Golenko, Zsolt (North Reading, MA); Wittstein, Alan D. (Fairfield, CT)

1985-01-15T23:59:59.000Z

286

Medical Device Interoperability The lack of interoperability between medical devices  

E-Print Network (OSTI)

Medical Device Interoperability The lack of interoperability between medical devices can lead to preventable medical errors and potentially serious inefficiencies that could otherwise be avoided. Overview an accurate diagnostic and treatment discipline, medical devices are playing an ever-increasing role

287

NREL Developing a Numerical Simulation Tool to Study Hydrokinetic Energy Conversion Devices and Arrays (Fact Sheet)  

Science Conference Proceedings (OSTI)

New code will help accelerate design improvements by providing a high-fidelity simulation tool to study power performance, structural loading, and the interactions between devices in arrays.

Not Available

2012-02-01T23:59:59.000Z

288

2011 Marine Hydrokinetic Device Modeling Workshop: Final Report; March 1, 2011  

SciTech Connect

This report summarizes the NREL Marine and Hydrokinetic Device Modeling Workshop. The objectives for the modeling workshop were to: (1) Review the designs of existing MHK device prototypes and discuss design and optimization procedures; (2) Assess the utility and limitations of modeling techniques and methods presently used for modeling MHK devices; (3) Assess the utility and limitations of modeling methods used in other areas, such as naval architecture and ocean engineering (e.g., oil & gas industry); and (4) Identify the necessary steps to link modeling with other important components that analyze MHK devices (e.g., tank testing, PTO design, mechanical design).

Li, Y.; Reed, M.; Smith, B.

2011-10-01T23:59:59.000Z

289

Energy Management on Handheld Devices  

Science Conference Proceedings (OSTI)

Handheld devices are becoming ubiquitous and as their capabilities increase, they are starting to displace laptop computers - much as laptop computers have displaced desktop computers in many roles. Handheld devices are evolving from today's PDAs, organizers, ...

Marc A Viredaz; Lawrence S Brakmo; William R Hamburgen

2003-10-01T23:59:59.000Z

290

Device for separating a mixture  

SciTech Connect

A device is described for separating a mixture of, for example, oil and water consists of a number of elements treating the mixture in stages, said elements being arranged in overlying position in order to manufacture a compact device.

Koot, T.A.; Verpalen, W.A.

1981-05-05T23:59:59.000Z

291

Medical Devices Metrology and Standards  

Science Conference Proceedings (OSTI)

... Medical Devices Metrology and Standards Needs (Download the flyer in pdf ... Standard and Metrology Needs for Surgical Robotics, presented by ...

2013-07-18T23:59:59.000Z

292

Limb Prosthetics Services and Devices  

Science Conference Proceedings (OSTI)

... of the field of biomechatronics, the science of fusing mechanical devices with human muscle, skeleton ... Growing Physical Health Consciousness. ...

2011-08-02T23:59:59.000Z

293

Device location summary - piton event  

SciTech Connect

This article describes the depth dimensions for the Piton Event Yellow device, which was fired on May 28, 1970.

Wondolowski, F.

1970-05-28T23:59:59.000Z

294

Hybrid free electron laser devices  

Science Conference Proceedings (OSTI)

We consider hybrid free electron laser devices consisting of Cerenkov and undulator sections. We will show that they can in principle be used as segmented devices and also show the possibility of exploiting Cerenkov devices for the generation of nonlinear harmonic coherent power. We discuss both oscillator and amplifier schemes.

Asgekar, Vivek; Dattoli, G. [Department of Physics, University of Pune, Pune 411007 (India); ENEA, Unita Tecnico Scientifica Technologie Fisiche, Avanzate, Centro Ricerche Frascati, C.P. 65-00044 Frascati, Rome (Italy)

2007-03-15T23:59:59.000Z

295

A CMOS Hearing Aid Device  

Science Conference Proceedings (OSTI)

In this paper a CMOS Hearing Aid Device is described. The system is composed of a low-distortion low-noise preamplifier, an automatic gain control (AGC), a fully programmable switched-capacitor filter (equalizer), and a control system. The device has ... Keywords: AGCs, CMOS amplifiers and filters, analog integrated circuits, hearing aid device

José Silva-Martínez; Sergio Solís-Bustos; Jorge Salcedo-Suñer; Rogelio Rojas-Hernández; Martin Schellenberg

1999-11-01T23:59:59.000Z

296

Pipet: a design concept supporting photo sharing  

Science Conference Proceedings (OSTI)

To support reminiscing in the home, people collect an increasing amount of digital media on numerous devices. When sharing their media with other people, distribution of the media over different devices can be problematic. In this paper, we address this ... Keywords: collaboration, cross-device interaction, interaction design, photo sharing, tangible user interface

Bernt Meerbeek; Peter Bingley; Wil Rijnen; Elise van den Hoven

2010-10-01T23:59:59.000Z

297

Refining interaction designs through simplicity  

Science Conference Proceedings (OSTI)

With more and more devices in our surroundings, users increasingly-consume applications and digital services which compete for their attention. Therefore, users appreciate simplicity when they interact with them because a less intrusive interaction allows ... Keywords: interaction, mobile devices, simplicity, user-centered design

Pablo Muñoz; Pau Giner; Vicente Pelechano

2010-11-01T23:59:59.000Z

298

Thermophysical Properties of Biofuels  

Science Conference Proceedings (OSTI)

... The thermophysical properties of biofuels are required for the efficient design of every ... into the databases will be the modeling of biofuel blends and ...

2012-10-02T23:59:59.000Z

299

Fiber optic monitoring device  

DOE Patents (OSTI)

A device for the purpose of monitoring light transmissions in optical fibers comprises a fiber optic tap that optically diverts a fraction of a transmitted optical signal without disrupting the integrity of the signal. The diverted signal is carried, preferably by the fiber optic tap, to a lens or lens system that disperses the light over a solid angle that facilitates viewing. The dispersed light indicates whether or not the monitored optical fiber or system of optical fibers is currently transmitting optical information. 4 figures.

Samborsky, J.K.

1993-10-05T23:59:59.000Z

300

Coordinating overcurrent protection devices  

Science Conference Proceedings (OSTI)

Distribution, substation, and plant engineers can benefit from using an overcurrent protection program in commercial, industrial, and utility applications to aid in clearing temporary faults and isolating permanent faults. In the time it normally takes to check one coordination scheme manually, dozens of alternatives can be evaluated using a graphics-oriented program, because the engineer receives immediate feedback for quick decision-making. It is well known that accurately coordinating overcurrent protection devices can minimize or prevent equipment damage, and electrical power service to customers can be greatly improved. In addition to assisting experienced engineers, an overcurrent protection program is an excellent training tool for new engineers.

St. John, M.; Borgnino, A.

1996-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Fiber optic monitoring device  

DOE Patents (OSTI)

This invention is comprised of a device for the purpose of monitoring light transmissions in optical fibers comprises a fiber optic tap that optically diverts a fraction of a transmitted optical signal without disrupting the integrity of the signal. The diverted signal is carried, preferably by the fiber optic tap, to a lens or lens system that disperses the light over a solid angle that facilitates viewing. The dispersed light indicates whether or not the monitored optical fiber or system of optical fibers is currently transmitting optical information.

Samborsky, J.K.

1992-12-31T23:59:59.000Z

302

Micro environmental sensing device  

DOE Patents (OSTI)

A microelectromechanical (MEM) acceleration switch is disclosed which includes a proof mass flexibly connected to a substrate, with the proof mass being moveable in a direction substantially perpendicular to the substrate in response to a sensed acceleration. An electrode on the proof mass contacts one or more electrodes located below the proof mass to provide a switch closure in response to the sensed acceleration. Electrical latching of the switch in the closed position is possible with an optional latching electrode. The MEM acceleration switch, which has applications for use as an environmental sensing device, can be fabricated using micromachining.

Polosky, Marc A. (Tijeras, NM); Lukens, Laurance L. (Tijeras, NM)

2006-05-02T23:59:59.000Z

303

Nanoscale Josephson Devices  

E-Print Network (OSTI)

, ferromagnetically (aligned ferromagnetic layers) FIB Focused Ion Beam GL Ginzburg-Landau GPIB General Purpose Interface Bus GMR Giant Magnetoresistance HTS High Temperature Superconductor I Insulator LED Light Emitting Diode LTS Low Temperature Superconductor MR... . The fabrication of intrinsic Josephson junctions in the high temperature superconductor Tl2Ba2CaCu2O8 will then be discussed, as well as Nb/MoSi2/Nb junctions, superconducting quantum interference devices, and finally GaN light emitting diodes. The work on Tl2Ba2...

Bell, Chris

304

Optical sensors and multisensor arrays containing thin film electroluminescent devices  

DOE Patents (OSTI)

Optical sensor, probe and array devices for detecting chemical biological, and physical analytes. The devices include an analyte-sensitive layer optically coupled to a thin film electroluminescent layer which activates the analyte-sensitive layer to provide an optical response. The optical response varies depending upon the presence of an analyte and is detected by a photodetector and analyzed to determine the properties of the analyte.

Aylott, Jonathan W. (Ann Arbor, MI); Chen-Esterlit, Zoe (Ann Arbor, MI); Friedl, Jon H. (Ames, IA); Kopelman, Raoul (Ann Arbor, MI); Savvateev, Vadim N. (Ames, IA); Shinar, Joseph (Ames, IA)

2001-12-18T23:59:59.000Z

305

Shape Memory Polymer Therapeutic Devices for Stroke  

SciTech Connect

Shape memory polymers (SMPs) are attracting a great deal of interest in the scientific community for their use in applications ranging from light weight structures in space to micro-actuators in MEMS devices. These relatively new materials can be formed into a primary shape, reformed into a stable secondary shape, and then controllably actuated to recover their primary shape. The first part of this presentation will be a brief review of the types of polymeric structures which give rise to shape memory behavior in the context of new shape memory polymers with highly regular network structures recently developed at LLNL for biomedical devices. These new urethane SMPs have improved optical and physical properties relative to commercial SMPs, including improved clarity, high actuation force, and sharper actuation transition. In the second part of the presentation we discuss the development of SMP based devices for mechanically removing neurovascular occlusions which result in ischemic stroke. These devices are delivered to the site of the occlusion in compressed form, are pushed through the occlusion, actuated (usually optically) to take on an expanded conformation, and then used to dislodge and grip the thrombus while it is withdrawn through the catheter.

Wilson, T S; Small IV, W; Benett, W J; Bearinger, J P; Maitland, D J

2005-10-11T23:59:59.000Z

306

Spherical Torus Center Stack Design  

SciTech Connect

The low aspect ratio spherical torus (ST) configuration requires that the center stack design be optimized within a limited available space, using materials within their established allowables. This paper presents center stack design methods developed by the National Spherical Torus Experiment (NSTX) Project Team during the initial design of NSTX, and more recently for studies of a possible next-step ST (NSST) device.

C. Neumeyer; P. Heitzenroeder; C. Kessel; M. Ono; M. Peng; J. Schmidt; R. Woolley; I. Zatz

2002-01-18T23:59:59.000Z

307

Radiography Device | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Radiography Device Radiography Device Radiography Device This scenario provides the planning instructions, guidance, and evaluation forms necessary to conduct an exercise involving a highway shipment of a radiography device (Class 7 - Radioactive). This exercise manual is one in a series of five scenarios developed by the Department of Energy Transportation Emergency Preparedness Program. Responding agencies may include several or more of the following: local municipal and county fire, police, sheriff, and Emergency Medical Services (EMS) personnel; state, local, and federal emergency response teams; emergency response contractors; and other emergency response resources that could potentially be provided by the carrier and the originating facility (shipper). Radiography Device.docx

308

Optimization of Processing and Modeling Issues for Thin-Film Solar Cell Devices; Annual Report, 3 February 1997-2 February 1998  

DOE Green Energy (OSTI)

This report describes results achieved during phase I of a four-phase subcontract to develop and understand thin-film solar cell technology associated with CuInSe2 and related alloys, a-Si and its alloys, and CdTe. Modules based on all these thin films are promising candidates to meet DOE long-range efficiency, reliability, and manufacturing cost goals. The critical issues being addressed under this program are intended to provide the science and engineering basis for developing viable commercial processes and to improve module performance. The generic research issues addressed are: (1) quantitative analysis of processing steps to provide information for efficient commercial-scale equipment design and operation; (2) device characterization relating the device performance to materials properties and process conditions; (3) development of alloy materials with different bandgaps to allow improved device structures for stability and compatibility with module design; (4) development of improved window/heterojunction layers and contacts to improve device performance and reliability; and (5) evaluation of cell stability with respect to illumination, temperature, and ambient and with respect to device structure and module encapsulation.

Birkmire, R. W.; Phillips, J. E.; Shafarman, W. N.; Hegedus, S. S.; McCandless, B. E. (IEC, University of Delaware)

1998-12-08T23:59:59.000Z

309

Optimization of Processing and Modeling Issues for Thin Film Solar Cell Devices: Final Report, 24 August 1998-23 October 2001  

DOE Green Energy (OSTI)

This report describes results achieved during a three-year subcontract to develop and understand thin-film solar cell technology associated to CuInSe2 and related alloys, a-Si and its alloys, and CdTe. Modules based on all these thin films are promising candidates to meet DOE long-range efficiency, reliability, and manufacturing cost goals. The critical issues being addressed under this program are intended to provide the science and engineering basis for the development of viable commercial processes and to improve module performance. The generic research issues addressed are: (1) quantitative analysis of processing steps to provide information for efficient commercial-scale equipment design and operation; (2) device characterization relating the device performance to materials properties and process conditions; (3) development of alloy materials with different bandgaps to allow improved device structures for stability and compatibility with module design; (4) development of improved window/heterojunction layers and contacts to improve device performance and reliability; and (5) evaluation of cell stability with respect to illumination, temperature, and ambient and with respect to device structure and module encapsulation.

Birkmire, R. W.; Phillips, J. E.; Shafarman, W. N.; Eser, E.; Hegedus, S. S.; McCandless, B. E.; Aparicio, R.; Dobson, K.

2003-01-01T23:59:59.000Z

310

Fluid flow monitoring device  

DOE Patents (OSTI)

This invention consists of a flow meter and temperature measuring device comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips.

McKay, M.D.; Sweeney, C.E.

1991-03-05T23:59:59.000Z

311

CMOS Reliability and Advanced Devices Group  

Science Conference Proceedings (OSTI)

... electron devices for the electronics industry by ... reliability issues in emerging electronic devices. ... Power Device and Thermal Metrology—The Power ...

2013-04-26T23:59:59.000Z

312

Local Option - Special Assessment of Wind Energy Devices | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Local Option - Special Assessment of Wind Energy Devices Local Option - Special Assessment of Wind Energy Devices Local Option - Special Assessment of Wind Energy Devices < Back Eligibility Agricultural Commercial Industrial Residential Savings Category Wind Buying & Making Electricity Program Info Start Date 01/01/1994 State Iowa Program Type Property Tax Incentive Rebate Amount Property valued at 0% of the net acquisition cost in the first assessment year, increasing annually by 5 percentage points to a maximum of 30% of the net acquisition cost in the 7th and succeeding years Provider Iowa Department of Revenue Any city or county in Iowa may pass an ordinance assessing wind energy conversion equipment at a special valuation for property tax purposes, beginning at 0% of the net acquisition cost in the first assessment year

313

Howard County - High Performance and Green Building Property Tax Credits |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Howard County - High Performance and Green Building Property Tax Howard County - High Performance and Green Building Property Tax Credits Howard County - High Performance and Green Building Property Tax Credits < Back Eligibility Commercial Multi-Family Residential Residential Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Solar Lighting Windows, Doors, & Skylights Heating Buying & Making Electricity Water Water Heating Wind Maximum Rebate High Performance Buildings: none specified High Performance R-2, R-3 Buildings: $5,000 per building or owner-occupied unit Green Buildings (w/energy conservation devices): limited to assessed property taxes on the structure Program Info Start Date 07/01/2008 State Maryland

314

Electron-beam-controlled gas lasers: discussion from the engineering viewpoint. Part II. Problems in the electrical design of very high energy systems  

SciTech Connect

Some problem areas in the design of very-high-energy electronbeam- controlled short-pulse gas lasers are discussed. One of the prime areas of interest is the high-voltage pulse generators for driving the electron gun and gas pumping. The use of pulse-forming networks for improving energy-transfer efficiency is discussed. The use of thermionic cathode devices will require a large ac power installation. The properties of alternate electron sources (cold cathode and plasma cathode devices) are reviewed. The impact of laser beam energy density limitations on system geometry and electrical design are discussed last. (auth)

Riepe, K.B.; Stapleton, R.E.

1973-01-01T23:59:59.000Z

315

Designing manycore processor networks using silicon photonics  

E-Print Network (OSTI)

We present a vertical integration approach for designing silicon photonic networks for communication in manycore systems. Using a top-down approach we project the photonic device requirements for a 64-tile system designed ...

Stojanovic, Vladimir Marko

316

and Devices for Energy,  

E-Print Network (OSTI)

at the Los Alamos Neutron Science Center (LANSCE). It will be unique among nuclear fuel irradiation at Idaho National Laboratory for fabrication of metallic nuclear fuels rods. A small bench scale caster and emission applications, and study their optical properties. Colloidal nanomaterials for light harvesting

Yener, Aylin

317

MHK Technologies/Floating Duck Type Device | Open Energy Information  

Open Energy Info (EERE)

Type Device Type Device < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Floating Duck Type Device.jpg Technology Profile Primary Organization Guangzhou Institute of Energy Conversion Technology Readiness Level Click here TRL 4 Proof of Concept Technology Description Guangzhou Institute of Energy Conversion GIEC of Chinese Academy of Sciences CAS plans to build an isolated power system with renewable energy on Dawanshan Island Guangdong Province before August 2012 with total installed capacity of 500kW including 300kW from wave energy device and 200kW from wind turbine The design of 100kW floating duck type device charging process and special transporting boat has been completed and the scale prototype is testing Technology Dimensions

318

Electron beam directed energy device and methods of using same  

DOE Patents (OSTI)

A method and apparatus is disclosed for an electron beam directed energy device. The device consists of an electron gun with one or more electron beams. The device includes one or more accelerating plates with holes aligned for beam passage. The plates may be flat or preferably shaped to direct each electron beam to exit the electron gun at a predetermined orientation. In one preferred application, the device is located in outer space with individual beams that are directed to focus at a distant target to be used to impact and destroy missiles. The aimings of the separate beams are designed to overcome Coulomb repulsion. A method is also presented for directing the beams to a target considering the variable terrestrial magnetic field. In another preferred application, the electron beam is directed into the ground to produce a subsurface x-ray source to locate and/or destroy buried or otherwise hidden objects including explosive devices.

Retsky, Michael W. (Trumbull, CT)

2007-10-16T23:59:59.000Z

319

Nuclear reactor safety device  

DOE Patents (OSTI)

A safety device is described for use in a nuclear reactor for axially repositioning a control rod with respect to the reactor core in the event of a thermal excursion. It comprises a laminated strip helically configured to form a tube, said tube being in operative relation to said control rod. The laminated strip is formed of at least two materials having different thermal coefficients of expansion, and is helically configured such that the material forming the outer lamina of the tube has a greater thermal coefficient of expansion than the material forming the inner lamina of said tube. In the event of a thermal excursion the laminated strip will tend to curl inwardly so that said tube will increase in length, whereby as said tube increases in length it exerts a force on said control rod to axially reposition said control rod with respect to said core.

Hutter, E.

1983-08-15T23:59:59.000Z

320

False color viewing device  

DOE Patents (OSTI)

This invention consists of a viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching, the user`s eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

Kronberg, J.W.

1991-05-08T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Programmable logic devices  

Science Conference Proceedings (OSTI)

Erasable programmable logic devices (EPLDs) were investigated to determine their advantages and/or disadvantages in Test Equipment Engineering applications. It was found that EPLDs performed as well as or better than identical circuits using standard TTL logic. The chip count in these circuits was reduced, saving printed circuit board space and shortening fabrication and prove-in time. Troubleshooting circuits of EPLDs was also easier with 10 to 100 times fewer wires needed. The reduced number of integrated circuits (ICs) contributed to faster system speeds and an overall lower power consumption. In some cases changes to the circuit became software changes using EPLDs instead of hardware changes for standard logic. Using EPLDs was fairly easy; however, as with any new technology, a learning curve must be overcome before EPLDs can be used efficiently. The many benefits of EPLDs outweighed this initial inconvenience.

Jacobs, J.L.

1993-04-01T23:59:59.000Z

322

TWO-SPEED DEVICE  

DOE Patents (OSTI)

A two-speed device is described comprising a two-part stop engageable with a follower. The two-pant stop comprises first and second members in threaded engagement with each other. The first member is restrained against rotation but is free to move longitudinally, and the second member is free to move arially and rotatively. Means are provided to impart rotation to the second member. The follower is engageable first with an end of one member and then with the corresponding end of the other member after some relative longitudinal movement of the members with respect to one another due to the rotation of the second member and the holding of the first member against rotation.

Brunson, G.S. Jr.

1961-04-01T23:59:59.000Z

323

Multichannel optical sensing device  

DOE Patents (OSTI)

A multichannel optical sensing device is disclosed, for measuring the outr sky luminance or illuminance or the luminance or illuminance distribution in a room, comprising a plurality of light receptors, an optical shutter matrix including a plurality of liquid crystal optical shutter elements operable by electrical control signals between light transmitting and light stopping conditions, fiber optic elements connected between the receptors and the shutter elements, a microprocessor based programmable control unit for selectively supplying control signals to the optical shutter elements in a programmable sequence, a photodetector including an optical integrating spherical chamber having an input port for receiving the light from the shutter matrix and at least one detector element in the spherical chamber for producing output signals corresponding to the light, and output units for utilizing the output signals including a storage unit having a control connection to the microprocessor based programmable control unit for storing the output signals under the sequence control of the programmable control unit.

Selkowitz, Stephen E. (Piedmont, CA)

1990-01-01T23:59:59.000Z

324

False color viewing device  

DOE Patents (OSTI)

A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

1992-01-01T23:59:59.000Z

325

Tool setting device  

DOE Patents (OSTI)

The present invention relates to a tool setting device for use with numerically controlled machine tools, such as lathes and milling machines. A reference position of the machine tool relative to the workpiece along both the X and Y axes is utilized by the control circuit for driving the tool through its program. This reference position is determined for both axes by displacing a single linear variable displacement transducer (LVDT) with the machine tool through a T-shaped pivotal bar. The use of the T-shaped bar allows the cutting tool to be moved sequentially in the X or Y direction for indicating the actual position of the machine tool relative to the predetermined desired position in the numerical control circuit by using a single LVDT.

Brown, Raymond J. (Clinton, TN)

1977-01-01T23:59:59.000Z

326

Capacitance measuring device  

DOE Patents (OSTI)

A capacitance measuring circuit is provided in which an unknown capacitance is measured by comparing the charge stored in the unknown capacitor with that stored in a known capacitance. Equal and opposite voltages are repetitively simultaneously switched onto the capacitors through an electronic switch driven by a pulse generator to charge the capacitors during the ''on'' portion of the cycle. The stored charge is compared by summing discharge currents flowing through matched resistors at the input of a current sensor during the ''off'' portion of the switching cycle. The net current measured is thus proportional to the difference in value of the two capacitances. The circuit is capable of providing much needed accuracy and stability to a great variety of capacitance-based measurement devices at a relatively low cost.

Andrews, W.H. Jr.

1984-08-01T23:59:59.000Z

327

False color viewing device  

DOE Patents (OSTI)

A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage. 7 figs.

Kronberg, J.W.

1992-10-20T23:59:59.000Z

328

Personal annunciation device  

DOE Patents (OSTI)

A personal annunciation device (PAD) providing, in an area of interest, compensatory annunciation of the presence of an abnormal condition in a hazardous area and accountability of the user of the PAD. Compensatory annunciation supplements primary annunciation provided by an emergency notification system (ENS). A detection system detects an abnormal condition, and a wireless transmission system transmits a wireless transmission to the PAD. The PAD has a housing enclosing the components of the PAD including a communication module for receiving the wireless transmission, a power supply, processor, memory, annunciation system, and RFID module. The RFID module has an RFID receiver that listens for an RFID transmission from an RFID reader disposed in a portal of an area of interest. The PAD identifies the transmission and changes its operating state based on the transmission. The RFID readers recognize, record, and transmit the state of the PAD to a base station providing accountability of the wearer.

Angelo, Peter (Oak Ridge, TN); Younkin, James (Oak Ridge, TN); DeMint, Paul (Kingston, TN)

2011-01-25T23:59:59.000Z

329

A Balloon-Borne Continuous Cloud Particle Replicator for Measuring Vertical Profiles of Cloud Microphysical Properties: Instrument Design, Performance, and Collection Efficiency Analysis  

Science Conference Proceedings (OSTI)

The performance of a balloon-borne Formvar replicator that measures continuous profiles of cloud microphysical properties is investigated. The replicator measures the small particles (<100-?m diameter) that are undetectable or poorly resolved by ...

Larry M. Miloshevich; Andrew J. Heymsfield

1997-08-01T23:59:59.000Z

330

Reading Comprehension - Properties and Changes  

NLE Websites -- All DOE Office Websites (Extended Search)

Properties and Changes Properties and Changes Matter can be described and identified by physical and chemical properties. Physical _________ chemicals properties substances textures have to do with appearance. You can observe many physical properties with your senses and by measuring the length, _________ width density height property , height, mass and density of a substance. _________ Chemical Matter Described Physical properties include color, shape, smell, texture, taste and size. The state of matter (whether it's a solid, _________ water molecule liquid atom , or gas) and the _________ time temperature design cylinder at which the substance boils, melts or freezes are also physical properties. Magnetic properties are physical properties as well. _________ Chemical Physical Substance Gaseous properties, on the other

331

EFFICIENCY OF SCAVENGING DEVICES IN DETERMINING FALLOUG. Progress Report No. 6 March 15 to July 31, 1957  

SciTech Connect

A fall-out sample collector was designed and tested for use in collecting samples at the soil surface. The sampler consists of artificial grass and a stainless steel pot. Results are included from preliminary studies on the scavenging properties of artificial grass. The effects of relative humidity, rain, and wind velocity on the efficiency of scavenging devices were investigated. A comparison was made of Sr/sup 90/ fall-out data from samples collected on gummed film and surface soil samples from various locations. Preliminary experiments were performed for the evaluation of devices used in determining air concentration of radioactive fall-out or other particulate matter. (For preceding period see AECU-3435.) (C.H.)

Rosinski, J.

1957-09-23T23:59:59.000Z

332

Alta Devices | Open Energy Information  

Open Energy Info (EERE)

Devices Devices Jump to: navigation, search Name Alta Devices Place Santa Clara, California Zip 95054 Product California-based stealth mode company developing low-cost compound-PV-semiconductors. Website https://www.altadevices.com/ References Alta Devices[1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Incubator Partnering Center within NREL National Center for Photovoltaics Partnership Year 2010 Link to project description http://www.nrel.gov/news/press/2010/802.html LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Alta Devices is a company located in Santa Clara, California . References ↑ "Alta Devices" Retrieved from

333

Variability aware SVM macromodel based design centering of analog circuits  

Science Conference Proceedings (OSTI)

Design centering is the term used for a procedure of obtaining enhanced parametric yield of a circuit despite the variations in device and design parameters. The process variability in nanometer regimes manifest into variations in these devices and design ... Keywords: Analog circuit sizing, Design centering, Genetic algorithm, Macromodels, Support vector machine, Yield

D. Boolchandani; Lokesh Garg; Sapna Khandelwal; Vineet Sahula

2012-10-01T23:59:59.000Z

334

Measuring Devices: Compressed Natural Gas Retail Motor ...  

Science Conference Proceedings (OSTI)

Compressed Natural Gas Retail Motor-Fuel Dispensers. ... Hydrogen Measuring Devices; Liquefied Petroleum Gas Liquid-Measuring Devices; ...

2010-10-05T23:59:59.000Z

335

Fuel rod retention device for a nuclear reactor  

DOE Patents (OSTI)

A device is described for supporting a nuclear fuel rod in a fuel rod assembly which allows the rod to be removed without disturbing other rods in the assembly. A fuel rod cap connects the rod to a bolt which is supported in the assembly end fitting by means of a locking assembly. The device is designed so that the bolt is held securely during normal reactor operation yet may be easily disengaged and the fuel rod removed when desired.

Hylton, Charles L. (Madison Heights, VA)

1984-01-01T23:59:59.000Z

336

Combadge: A voice messaging device for the masses  

E-Print Network (OSTI)

While the computer and communication revolutions have had a profound impact on the ways in which we all lead our lives, this impact has not reached much of the world´s population. The Combadge project has created a portable device and affordable service that bring person-toperson communication technology to the developing world. This system design allows even illiterate people to exchange messages utilizing easy-to-use devices that communicate our inexpensive heterogeneous networks.

James L. Frankel; James L. Frankel; Daniel Bromberg; Daniel Bromberg

2005-01-01T23:59:59.000Z

337

Assessment of Retrofit Energy Savings Devices: KVAR Energy Controller  

Science Conference Proceedings (OSTI)

This report describes and documents the performance of the kilovolt ampere reactive (KVAR) energy controller by KVAR Energy Savings Corporation. The specific part number tested was the PU-1200. This device is a 240-volt unit designed for installation at the residential customer's breaker panel. As of August 26, 2010, energy savings claims for the residential application of this device range from 6% to 10%, as indicated on KVAR's website. Various product distributors claim similar or greater savings on th...

2010-09-14T23:59:59.000Z

338

Safe-haven locking device  

DOE Patents (OSTI)

Disclosed is a locking device for eliminating external control of a secured space formed by fixed and movable barriers. The locking device uses externally and internally controlled locksets and a movable strike, operable from the secured side of the movable barrier, to selectively engage either lockset. A disengagement device, for preventing forces from being applied to the lock bolts is also disclosed. In this manner, a secured space can be controlled from the secured side as a safe-haven. 4 figures.

Williams, J.V.

1984-04-26T23:59:59.000Z

339

Positioning and locking device for fuel pin to grid attachment  

DOE Patents (OSTI)

A positioning and locking device for fuel pin to grid attachment provides an inexpensive means of positively positioning and locking the individual fuel pins which make up the driver fuel assemblies used in nuclear reactors. The device can be adapted for use with a currently used attachment grid assembly design and insures that the pins remain in their proper position throughout the in-reactor life of the assembly. This device also simplifies fuel bundle assembly in that a complete row of fuel pins can be added to the bundle during each step of assembly.

Frick, Thomas M. (Irwin, PA); Wineman, Arthur L. (Greensburg, PA)

1976-01-01T23:59:59.000Z

340

Active terahertz metamaterial devices  

DOE Patents (OSTI)

Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Each element within an array of metamaterial (MM) elements comprises multiple loops and at least one gap. The MM elements may comprise resonators with conductive loops and insulated gaps, or the inverse in which insulated loops are present with conductive gaps; each providing useful transmissive control properties. The metamaterial elements are fabricated on a semiconducting substrate configured with a means of enhancing or depleting electrons from near the gaps of the MM elements. An on to off transmissivity ratio of about 0.5 is achieved with this approach. Embodiments are described in which the MM elements incorporated within a Quantum Cascade Laser (QCL) to provide surface emitting (SE) properties.

Chen, Houtong (Los Alamos, NM); Padilla, Willie John (Newton, MA); Averitt, Richard Douglas (Newton, MA); O' Hara, John F. (Los Alamos, NM); Lee, Mark (Albuquerque, NM)

2010-11-02T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Microbiopsy/precision cutting devices  

DOE Patents (OSTI)

Devices are disclosed for performing tissue biopsy on a small scale (microbiopsy). By reducing the size of the biopsy tool and removing only a small amount of tissue or other material in a minimally invasive manner, the risks, costs, injury and patient discomfort associated with traditional biopsy procedures can be reduced. By using micromachining and precision machining capabilities, it is possible to fabricate small biopsy/cutting devices from silicon. These devices can be used in one of four ways (1) intravascularly, (2) extravascularly, (3) by vessel puncture, and (4) externally. Additionally, the devices may be used in precision surgical cutting. 6 figs.

Krulevitch, P.A.; Lee, A.P.; Northrup, M.A.; Benett, W.J.

1999-07-27T23:59:59.000Z

342

Processing and modeling issues for thin-film solar cell devices: Annual subcontract report, January 16, 1995 -- January 15, 1996  

DOE Green Energy (OSTI)

The overall mission of the Institute of Energy Conversion is the development of thin film photovoltaic cells, modules, and related manufacturing technology and the education of students and professionals in photovoltaic technology. The objectives of this four-year NREL subcontract are to advance the state of the art and the acceptance of thin film PV modules in the areas of improved technology for thin film deposition, device fabrication, and material and device characterization and modeling, relating to solar cells based on CuInSe{sub 2} and its alloys, on a-Si and its alloys, and on CdTe. In the area of CuInSe{sub 2} and its alloys, EEC researchers have produced CuIn{sub 1-x}GaxSe{sub 2} films by selenization of elemental and alloyed films with H{sub 2}Se and Se vapor and by a wide variety of process variations employing co-evaporation of the elements. Careful design, execution and analysis of these experiments has led to an improved understanding of the reaction chemistry involved, including estimations of the reaction rate constants. Investigation of device fabrication has also included studies of the processing of the Mo, US and ZnO deposition parameters and their influence on device properties. An indication of the success of these procedures was the fabrication of a 15% efficiency CuIn{sub 1-x}GaxSe{sub 2} solar cell.

Birkmire, R.W.; Phillips, J.E.; Buchanan, W.A.; Eser, E.; Hegedus, S.S.; McCandless, B.E.; Meyers, P.V.; Shafarman, W.N. [Univ. of Delaware, Newark, DE (United States)

1996-08-01T23:59:59.000Z

343

Temperature differential detection device  

DOE Patents (OSTI)

A temperature differential detection device for detecting the temperature differential between predetermined portions of a container wall is disclosed as comprising a Wheatstone bridge circuit for detecting resistance imbalance with a first circuit branch having a first elongated wire element mounted in thermal contact with a predetermined portion of the container wall, a second circuit branch having a second elongated wire element mounted in thermal contact with a second predetermined portion of a container wall with the wire elements having a predetermined temperature-resistant coefficient, an indicator interconnected between the first and second branches remote from the container wall for detecting and indicating resistance imbalance between the first and second wire elements, and connector leads for electrically connecting the wire elements to the remote indicator in order to maintain the respective resistance value relationship between the first and second wire elements. The indicator is calibrated to indicate the detected resistance imbalance in terms of a temperature differential between the first and second wall portions.

Girling, Peter M. (Allentown, PA)

1986-01-01T23:59:59.000Z

344

Temperature differential detection device  

DOE Patents (OSTI)

A temperature differential detection device for detecting the temperature differential between predetermined portions of a container wall is disclosed as comprising a Wheatstone bridge circuit for detecting resistance imbalance with a first circuit branch having a first elongated wire element mounted in thermal contact with a predetermined portion of the container wall, a second circuit branch having a second elongated wire element mounted in thermal contact with a second predetermined portion of a container wall with the wire elements having a predetermined temperature-resistant coefficient, an indicator interconnected between the first and second branches remote from the container wall for detecting and indicating resistance imbalance between the first and second wire elements, and connector leads for electrically connecting the wire elements to the remote indicator in order to maintain the respective resistance value relationship between the first and second wire elements. The indicator is calibrated to indicate the detected resistance imbalance in terms of a temperature differential between the first and second wall portions. 2 figs.

Girling, P.M.

1986-04-22T23:59:59.000Z

345

Theory and design of high-index-contrast microphotonic circuits  

E-Print Network (OSTI)

Advanced microphotonic device designs in strongly confining silicon and silicon nitride waveguides, novel photonic device concepts, and the first experimental demonstrations of these structures are described. They show a ...

Popovi?, Miloš, 1977-

2008-01-01T23:59:59.000Z

346

Electrode holder useful in a corrosion testing device  

DOE Patents (OSTI)

The present invention is directed to an apparatus and method for holding one or more test electrodes of precisely known exposed surface area. The present invention is particularly useful in a device for determining the corrosion properties of the materials from which the test electrodes have been formed. The present invention relates to a device and method for holding the described electrodes wherein the exposed surface area of the electrodes is only infinitesimally decreased. Further, in the present invention the exposed, electrically conductive surface area of the contact devices is small relative to the test electrode surface area. The holder of the present invention conveniently comprises a device for contacting and engaging each test electrode at two point contacts infinitesimally small in relation to the exposed surface area of the electrodes. 4 figs.

Murphy, R.J. Jr.; Jamison, D.E.

1986-08-19T23:59:59.000Z

347

Electrode holder useful in a corrosion testing device  

DOE Patents (OSTI)

The present invention is directed to an apparatus and method for holding one or more test electrodes of precisely known exposed surface area. The present invention is particularly useful in a device for determining the corrosion properties of the materials from which the test electrodes have been formed. The present invention relates to a device and method for holding the described electrodes wherein the exposed surface area of the electrodes is only infinitesimally decreased. Further, in the present invention the exposed, electrically conductive surface area of the contact devices is small relative to the test electrode surface area. The holder of the present invention conveniently comprises a device for contacting and engaging each test electrode at two point contacts infinitesimally small in relation to the exposed surface area of the electrodes.

Murphy, Jr., Robert J. (Bellaire, TX); Jamison, Dale E. (Humble, TX)

1986-01-01T23:59:59.000Z

348

NETL: Pressure Swing Absorption Device  

NLE Websites -- All DOE Office Websites (Extended Search)

Pressure Swing Absorption Device and Process for Separating CO2 from Shifted Syngas and its Capture for Subsequent Storage Pressure Swing Absorption Device and Process for Separating CO2 from Shifted Syngas and its Capture for Subsequent Storage Project No.: DE-FE0001323 New Jersey Institute of Technology is developing an advanced pressure swing absorption-based (PSAB) device via laboratory-based experiments. The device will be used to accomplish a cyclic process to process low temperature post-shift-reactor synthesis gas resulting from the gasification process into purified hydrogen at high pressure for use by the combustion turbine of an integrated gasification combined cycle (IGCC) plant. The overall goal of the proposed work is to develop an advanced PSAB device and cyclic process for use in a coal-fired IGCC plant to produce purified hydrogen at high pressure and a highly purified CO2 stream suitable for use or sequestration.

349

Automatic Mechetronic Wheel Light Device  

SciTech Connect

A wheel lighting device for illuminating a wheel of a vehicle to increase safety and enhance aesthetics. The device produces the appearance of a "ring of light" on a vehicle's wheels as the vehicle moves. The "ring of light" can automatically change in color and/or brightness according to a vehicle's speed, acceleration, jerk, selection of transmission gears, and/or engine speed. The device provides auxiliary indicator lights by producing light in conjunction with a vehicle's turn signals, hazard lights, alarm systems, and etc. The device comprises a combination of mechanical and electronic components and can be placed on the outer or inner surface of a wheel or made integral to a wheel or wheel cover. The device can be configured for all vehicle types, and is electrically powered by a vehicle's electrical system and/or battery.

Khan, Mohammed John Fitzgerald (Silver Spring, MD)

2004-09-14T23:59:59.000Z

350

Automatic Mechetronic Wheel Light Device  

DOE Patents (OSTI)

A wheel lighting device for illuminating a wheel of a vehicle to increase safety and enhance aesthetics. The device produces the appearance of a "ring of light" on a vehicle's wheels as the vehicle moves. The "ring of light" can automatically change in color and/or brightness according to a vehicle's speed, acceleration, jerk, selection of transmission gears, and/or engine speed. The device provides auxiliary indicator lights by producing light in conjunction with a vehicle's turn signals, hazard lights, alarm systems, and etc. The device comprises a combination of mechanical and electronic components and can be placed on the outer or inner surface of a wheel or made integral to a wheel or wheel cover. The device can be configured for all vehicle types, and is electrically powered by a vehicle's electrical system and/or battery.

Khan, Mohammed John Fitzgerald (Silver Spring, MD)

2004-09-14T23:59:59.000Z

351

Graphite design handbook  

Science Conference Proceedings (OSTI)

The objectives of the Graphite Design Handbook (GDH) are to provide and maintain a single source of graphite properties and phenomenological model of mechanical behavior to be used for design of MHTGR graphite components of the Reactor System, namely, core support, permanent side reflector, hexagonal reflector elements, and prismatic fuel elements; to provide a single source of data and material models for use in MHTGR graphite component design, performance, and safety analyses; to present properties and equations representing material models in a form which can be directly used by the designer or analyst without the need for interpretation and is compatible with analytical methods and structural criteria used in the MHTGR project, and to control the properties and material models used in the MHTGR design and analysis to proper Quality Assurance standards and project requirements. The reference graphite in the reactor internal components is the nuclear grade 2020. There are two subgrades of interest, the cylinder nuclear grade and the large rectangular nuclear grade. The large rectangular nuclear grade is molded in large rectangular blocks. It is the reference material for the permanent side reflector and the central column support structure. The cylindrical nuclear grade is isostatically pressed and is intended for use as the core support component. This report gives the design properties for both H-451 and 2020 graphite as they apply to their respective criteria. The properties are presented in a form for design, performance, and safety calculations that define or validate the component design. 103 refs., 20 figs., 19 tabs.

Ho, F.H.

1988-09-01T23:59:59.000Z

352

MIDAS: Multi-device Integrated Dynamic Activity Spaces  

E-Print Network (OSTI)

Mobile phones, tablet computers, laptops, desktops, and large screen displays are increasingly available to individuals for information access, often simultaneously. Dominant content access protocols, such as HTTP/1.1, do not take advantage of this device multiplicity and support information access from single devices only. Changing devices means restarting an information session. Using devices in conjunction with each other poses several challenges, which include the presentation of content on devices with diverse form factors and propagation of the content changes across these devices. In this dissertation, I report on the design and implementation of MIDAS - architecture and a prototype system for multi-device presentations. I propose a framework, called 12C, for characterizing multi-device systems and evaluate MIDAS within this framework. MIDAS is designed as a middleware that can work with multiple client-server architectures, such as the Web and context-aware Trellis, a non-Web hypertext system. It presents information content simultaneously on devices with diverse characteristics without requiring sensor-enhanced environments. The system adapts content elements for optimal presentation on the target device while also striving to retain fidelity with the original form from a human perceptual perspective. MIDAS reconfigures its presentation in response to user actions, availability of devices, and environmental context, such as a user's location or the time of day. I conducted a pilot study that explored human perception of similarity when image attributes such as size and color depth are modified in the process of presenting images on different devices. The results indicated that users tend to prefer scaling of images to color-depth reduction but gray scaling of images is preferable to either modification. Not all images scale equally gracefully; those dominated by natural elements or manmade structures scale exceptionally well. Images that depict recognizable human faces or textual elements should be scaled only to an extent that these features retain their integrity. Attributes of the 12C framework describe aspects of multi-device systems that include infrastructure, presentation, interaction, interface, and security. Based on these criteria, MIDAS is a flexible infrastructure, which lends itself to several content distribution and interaction strategies by separating client- and server-side configuration.

Karadkar, Unmil Purushottam

2011-12-01T23:59:59.000Z

353

Device for generation of pulsed corona discharge  

DOE Patents (OSTI)

The invention is a method and system for the generation of high voltage, pulsed, periodic corona discharges capable of being used in the presence of conductive liquid droplets. The method and system can be used, for example, in different devices for cleaning of gaseous or liquid media using pulsed corona discharge. Specially designed electrodes and an inductor increase the efficiency of the system, permit the plasma chemical oxidation of detrimental impurities, and increase the range of stable discharge operations in the presence of droplets of water or other conductive liquids in the discharge chamber.

Gutsol, Alexander F. (San Ramon, CA); Fridman, Alexander (Marlton, NJ); Blank, Kenneth (Philadelphia, PA); Korobtsev, Sergey (Moscow, RU); Shiryaevsky, Valery (Moscow, RU); Medvedev, Dmitry (Moscow, RU)

2012-05-08T23:59:59.000Z

354

Low Power System Design Techniques for Mobile Computers  

E-Print Network (OSTI)

Portable products such as pagers, cordless and digital cellular telephones, personal audio equipment, and laptop computers are being used increasingly. Because these applications are battery powered, reducing power consumption is vital. In this report we first give the properties of low power design and techniques to exploit them on the hardware level such as: minimize capacitance, avoid wasteful activity, and reduce voltage and frequency. We will then elaborate on low power system-design techniques in which the main themes are to avoid wasteful activity at system level and to exploit locality of reference. Finally we review energy reduction techniques in the design of a wireless communication system, including system decomposition, communication and MAC protocols, and low power short range networks. 1 Introduction The requirement of portability of hand-held computers and portable devices places severe restrictions on size and power consumption. Even though battery technology is impr...

Paul J.M. Havinga; Gerard J. M. Smit

1997-01-01T23:59:59.000Z

355

Electrocaloric materials and devices  

E-Print Network (OSTI)

to the design and construction of equipment, without which no data could have been taken. Sohini’s hands-on approach in the laboratory is one I feel I have inherited, and I am certain I could have had no better role model. Sohini also led the Scanning Thermal... of ferroelectricity have more in common than intuition might suggest. All four can be the bases of a thermodynamic refrigeration cycle, because the entropy fields in all four cases are non-uniform, particularly in the vicinity of the critical points. Liquid...

Crossley, Samuel

2013-10-08T23:59:59.000Z

356

ISOTOPE CONVERSION DEVICE  

DOE Patents (OSTI)

This patent relates to nuclear reactors of tbe type utilizing a liquid fuel and designed to convert a non-thermally fissionable isotope to a thermally fissionable isotope by neutron absorption. A tank containing a reactive composition of a thermally fissionable isotope dispersed in a liquid moderator is disposed within an outer tank containing a slurry of a non-thermally fissionable isotope convertible to a thermally fissionable isotope by neutron absorption. A control rod is used to control the chain reaction in the reactive composition and means are provided for circulating and cooling the reactive composition and slurry in separate circuits.

Wigner, E.P.; Young, G.J.; Ohlinger, L.A.

1957-12-01T23:59:59.000Z

357

Design of a neighborhood pathfinder  

Science Conference Proceedings (OSTI)

Everyone understands their city in a slightly different way. This project seeks to leverage these differences by allowing people to share their understandings and compile a visual social history of the city.Most wayfinding systems are designed around ... Keywords: GPS, context-aware computing, handheld devices and mobile computing, interaction design, prototyping, user research, wayfinding

Jeff Howard; Jodi Forlizzi

2005-11-01T23:59:59.000Z

358

Properties Hydrogen  

Science Conference Proceedings (OSTI)

Thermophysical Properties of Hydrogen. PROPERTIES, ... For information on a PC database that includes hydrogen property information click here. ...

359

RF Micro Devices Inc RFMD | Open Energy Information  

Open Energy Info (EERE)

RF Micro Devices Inc RFMD RF Micro Devices Inc RFMD Jump to: navigation, search Name RF Micro Devices, Inc. (RFMD) Place Greensboro, North Carolina Zip 27409-9421 Product RF Micro Devices, Inc. is a global leader in the design and manufacture of high-performance semiconductor components. Coordinates 44.576059°, -72.294016° 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":44.576059,"lon":-72.294016,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

360

Pressure Relief Devices for Compressed Hydrogen Vehicle Fuel Containers  

NLE Websites -- All DOE Office Websites (Extended Search)

CSA Standards HPRD1-2009 CSA Standards HPRD1-2009 Temporary Interim Requirement For Pressure Relief Devices For Compressed Hydrogen Vehicle Fuel Containers Published - August 2009 3 5.6 General Hydrogen Service Suitability 5.6.1 General. The purpose of this test is to demonstrate suitability of pressure relief devices in hydrogen service. The pressure relief devices will be selected to be in compliance with Section 5.1 and representative of normal production. NOTE: This series of performance tests may not guarantee that all cases and conditions of service will be validated; it is still incumbent on the designer/builder to carefully screen materials of construction for their intended use. Test Method. The general hydrogen service suitability test sequence will be performed on nine devices.

Note: This page contains sample records for the topic "device design properties" 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

Nitride semiconductor Surface and interface characterization and device design  

E-Print Network (OSTI)

Dev. 48 , 444 (2001) J. M. Redwing, M. A. Tischler, J. S.K. S. Boutros, and J. M. Redwing, Appl. Phys. Lett. 73 ,

Zhang, Hongtao

2006-01-01T23:59:59.000Z

362

Fail-Safe, Inexpensive Electrochemical Device Stack Design  

For Industry; For Researchers; Success Stories; About Us; ... Inexpensive Production of High Density Thin Ceramic Films on Rigid or Porous Substrates, ...

363

Design of a microbreather for two-phase microchannel devices  

E-Print Network (OSTI)

Multiphase flows in microchannels are encountered in a variety of microfluidic applications. Two-phase microchannel heat sinks leverage the latent heat of vaporization to offer an efficient method of dissipating large heat ...

Alexander, Brentan R

2008-01-01T23:59:59.000Z

364

Rational Device Design for Highly Efficient Organic Photovoltaic Solar Cells.  

E-Print Network (OSTI)

??Abundant, scalable, environmentally-friendly organic photovoltaic (OPV) technology is increasingly promising in recent years. The power conversion efficiency (PCE) of OPVs has been raised to around… (more)

Yang, Bin

2013-01-01T23:59:59.000Z

365

Design automation of real-life asynchronous devices and systems  

Science Conference Proceedings (OSTI)

The number of gates on a chip is quickly growing toward and beyond the one billion mark. Keeping all the gates running at the beat of a single or a few rationally related clocks is becoming impossible. In static timing analysis process variations and ...

Alexander Taubin; Jordi Cortadella; Luciano Lavagno; Alex Kondratyev; Ad Peeters

2007-01-01T23:59:59.000Z

366

Fail-Safe, Inexpensive Electrochemical Device Stack Design ...  

Other systems require several additional steps. Co-firing the tubes themselves is less costly because no interconnect element is involved.

367

Remote access of electronic resources for thermal plant using mobile devices  

Science Conference Proceedings (OSTI)

This paper proposes a framework that extends a typical intelligent thermal system management that enables field engineers retrieving vital resources from centralised management station using mobile devices with limited memory, such as PDAs and cell phones. ... Keywords: J2ME, PDAs, artificial intelligence, cell phones, fault diagnosis, intelligent thermal management, mobile devices, mobile phones, remote access, thermal management systems, thermal plants, thermodynamic properties

F-L. Tan; S-C. Fok

2007-11-01T23:59:59.000Z

368

Measurement and control of exciton spin in organic light emitting devices  

E-Print Network (OSTI)

Organic semiconductors are a promising new material set for electronic and optoelectronic devices. Their properties can be precisely controlled through chemistry, and they are well-suited for large-area, flexible, and ...

Segal, Michael, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

369

Device-transparent personal storage  

E-Print Network (OSTI)

Users increasingly store data collections such as digital photographs on multiple personal devices, each of which typically presents the user with a storage management interface isolated from the contents of all other ...

Strauss, Jacob A. (Jacob Alo), 1979-

2010-01-01T23:59:59.000Z

370

Polymer electronic devices and materials.  

Science Conference Proceedings (OSTI)

Polymer electronic devices and materials have vast potential for future microsystems and could have many advantages over conventional inorganic semiconductor based systems, including ease of manufacturing, cost, weight, flexibility, and the ability to integrate a wide variety of functions on a single platform. Starting materials and substrates are relatively inexpensive and amenable to mass manufacturing methods. This project attempted to plant the seeds for a new core competency in polymer electronics at Sandia National Laboratories. As part of this effort a wide variety of polymer components and devices, ranging from simple resistors to infrared sensitive devices, were fabricated and characterized. Ink jet printing capabilities were established. In addition to promising results on prototype devices the project highlighted the directions where future investments must be made to establish a viable polymer electronics competency.

Schubert, William Kent; Baca, Paul Martin; Dirk, Shawn M.; Anderson, G. Ronald; Wheeler, David Roger

2006-01-01T23:59:59.000Z

371

Devices for collecting chemical compounds  

SciTech Connect

A device for sampling chemical compounds from fixed surfaces and related methods are disclosed. The device may include a vacuum source, a chamber and a sorbent material. The device may utilize vacuum extraction to volatilize the chemical compounds from a fixed surface so that they may be sorbed by the sorbent material. The sorbent material may then be analyzed using conventional thermal desorption/gas chromatography/mass spectrometry (TD/GC/MS) instrumentation to determine presence of the chemical compounds. The methods may include detecting release and presence of one or more chemical compounds and determining the efficacy of decontamination. The device may be useful in collection and analysis of a variety of chemical compounds, such as residual chemical warfare agents, chemical attribution signatures and toxic industrial chemicals.

Scott, Jill R; Groenewold, Gary S

2013-12-24T23:59:59.000Z

372

Biomedical devices from ultraviolet LEDs  

NLE Websites -- All DOE Office Websites (Extended Search)

Biomedical devices from ultraviolet LEDs Biomedical devices from ultraviolet LEDs Light-emitting nanocrystal diodes go ultraviolet Biomedical devices with active components could be made from nanostructured systems. February 24, 2012 Researcher working with nanocrystals A researcher at LANL works with nanocrystals. Get Expertise Researcher Sergio Brovelli Physical Chem & Applied Spectroscopy Email Research Team Leader Alberto Paleari University of Milano-Bicocca in Italy Such devices could, for example, selectively activate light-sensitive drugs for better medical treatment or probe for the presence of fluorescent markers in medical diagnostics. LEDs produce light in the ultraviolet range A process for creating glass-based, inorganic light-emitting diodes (LEDs) that produce light in the ultraviolet range has been developed by a

373

Development and characterization of 3D, nano-confined multicellular constructs for advanced biohybrid devices.  

Science Conference Proceedings (OSTI)

This is the final report for the President Harry S. Truman Fellowship in National Security Science and Engineering (LDRD project 130813) awarded to Dr. Bryan Kaehr from 2008-2011. Biological chemistries, cells, and integrated systems (e.g., organisms, ecologies, etc.) offer important lessons for the design of synthetic strategies and materials. The desire to both understand and ultimately improve upon biological processes has been a driving force for considerable scientific efforts worldwide. However, to impart the useful properties of biological systems into modern devices and materials requires new ideas and technologies. The research herein addresses aspects of these issues through the development of (1) a rapid-prototyping methodology to build 3D bio-interfaces and catalytic architectures, (2) a quantitative method to measure cell/material mechanical interactions in situ and at the microscale, and (3) a breakthrough approach to generate functional biocomposites from bacteria and cultured cells.

Kaehr, Bryan James

2011-09-01T23:59:59.000Z

374

Comparison of the properties of AlGaInN light-emitting diode chips of vertical and flip-chip design using silicon as the a submount  

SciTech Connect

Vertical and flip-chip light-emitting diode (LED) chips are compared from the viewpoint of the behavior of current spreading in the active region and the distribution of local temperatures and thermal resistances of chips. AlGaInN LED chips of vertical design are fabricated using Si as a submount and LED flipchips were fabricated with the removal of a sapphire substrate. The latter are also mounted on a Si submount. The active regions of both chips are identical and are about 1 mm{sup 2} in size. It is shown that both the emittance of the crystal surface in the visible range and the distribution of local temperatures estimated from radiation in the infrared region are more uniform in crystals of vertical design. Heat removal from flip-chips is insufficient in regions of the n contact, which do not possess good thermal contact with the submount. As a result, the total thermal resistances between the p-n junction and the submount both for the vertical chips and for flip-chips are approximately 1 K/W. The total area of the flip-chips exceeds that of the vertical design chips by a factor of 1.4.

Markov, L. K., E-mail: l.markov@mail.ioffe.ru; Smirnova, I. P.; Pavlyuchenko, A. S. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Kukushkin, M. V.; Vasil'eva, E. D. [ZAO Innovation 'Tetis' (Russian Federation); Chernyakov, A. E. [Russian Academy of Sciences, Science-and-Technology Microelectronics Center (Russian Federation); Usikov, A. S. [De Core Nanosemiconductors Ltd. (India)

2013-03-15T23:59:59.000Z

375

A Simple Candle Filter Safeguard Device  

SciTech Connect

In order to reach the highest possible efficiencies in a coal-fired turbine-based power system, the turbine should be directly fired with the products of coal utilization. Two main designs employ these turbines: those based on pressurized fluidized-bed combustors (PFBCs) and those based on integrated gasification combined cycles (IGCCs). In both designs, the suspended particulates, or dust, must be cleaned from the gas before it enters the turbine to prevent fouling and erosion of the blades. To produce the cleanest gas, barrier filters are being developed and are in commercial use. Barrier filters are composed of porous, high-temperature materials that allow the hot gas to pass but collect the dust on the surface. The three main configurations are candle, cross-flow, and tube. Both candle and tube filters have been tested extensively. They are primarily composed of coarsely porous ceramic that serves as a structural support, overlain with a thin, microporous ceramic layer o n the dirty gas side that serves as the primary filter surface. They are highly efficient at removing particulate matter from the gas stream and, because of their ceramic construction, are resistant to gas and ash corrosion. However, ceramics are brittle, and individual elements can fail, allowing the particulates to pass through the hole left by the filter element and erode the turbine. Because of the possibility of occasional filter breakage, safeguard devices (SGDs) must be employed to prevent the dust streaming through broken filters from reaching the turbine. The Energy & Environmental Research Center (EERC) safeguard device is composed of three main parts: the ceramic substrate, the adhesive coating, and the safeguard device housing. This report describes the development and laboratory testing of each of those parts as well as the bench-scale performance of both types of complete SGDs.

Hurley, J.P.; Henderson, A.K.; Swanson, M.L.

2002-09-18T23:59:59.000Z

376

Lih thermal energy storage device  

DOE Patents (OSTI)

A thermal energy storage device for use in a pulsed power supply to store waste heat produced in a high-power burst operation utilizes lithium hydride as the phase change thermal energy storage material. The device includes an outer container encapsulating the lithium hydride and an inner container supporting a hydrogen sorbing sponge material such as activated carbon. The inner container is in communication with the interior of the outer container to receive hydrogen dissociated from the lithium hydride at elevated temperatures.

Olszewski, Mitchell (Knoxville, TN); Morris, David G. (Knoxville, TN)

1994-01-01T23:59:59.000Z

377

Piezo-phototronic effect devices  

DOE Patents (OSTI)

A semiconducting device includes a piezoelectric structure that has a first end and an opposite second end. A first conductor is in electrical communication with the first end and a second conductor is in electrical communication with the second end so as to form an interface therebetween. A force applying structure is configured to maintain an amount of strain in the piezoelectric member sufficient to generate a desired electrical characteristic in the semiconducting device.

Wang, Zhong L.; Yang, Qing

2013-09-10T23:59:59.000Z

378

Exploring early evaluation techniques of ambient health promoting devices in home environments of senior citizens living independently  

Science Conference Proceedings (OSTI)

In this paper, our goal is to explore different early evaluation techniques and their effectiveness for designing better ambient health- promoting devices for the elderly. One cannot assess the complete impact of these devices without full implementation ... Keywords: Wizard of Oz, ambient technology, early evaluation methods, health monitoring devices, senior citizens, storyboarding, technology probe

Rajasee Rege; Heekyoung Jung; William Hazelwood; Greg Orlov; Kay Connelly; Kalpana Shankar

2008-06-01T23:59:59.000Z

379

Self-assembled DNA Nanostructures and DNA Devices John Reif Harish Chandran Nikhil Gopalkrishnan Thomas LaBean  

E-Print Network (OSTI)

and complexity. We discuss the design and demonstration of molecular-scale devices that make use of DNA, error-free methods for self-assembly of complex devices out of large number of molecular componentsSelf-assembled DNA Nanostructures and DNA Devices John Reif Harish Chandran Nikhil Gopalkrishnan

Reif, John H.

380

Geometry effects of small MOSFET devices  

Science Conference Proceedings (OSTI)

The effects of diminishing MOS inversion channel length or width on device characteristics are discussed. As opposed to the geometric device size, an "electric device size" is established by normalizing all dimensions on an appropriately chosen depletion ...

F. H. Gaensslen

1979-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

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

SciTech Connect

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

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

2012-05-08T23:59:59.000Z

382

Physicochemical properties and toxicities of hydrophobic piperidinium and  

NLE Websites -- All DOE Office Websites (Extended Search)

Physicochemical properties and toxicities of hydrophobic piperidinium and Physicochemical properties and toxicities of hydrophobic piperidinium and pyrrolidinium ionic liquids Title Physicochemical properties and toxicities of hydrophobic piperidinium and pyrrolidinium ionic liquids Publication Type Journal Article Year of Publication 2007 Authors Salminen, Justin, Nicolas Papaiconomou, Anand R. Kumar, Jong-Min Lee, John B. Kerr, John S. Newman, and John M. Prausnitz Journal Fluid Phase Equilibria Volume 261 Pagination 421-426 Keywords hydrophobic, ionic liquids, piperidinium, properties, pyrrolidinium, safety, toxicity Abstract Some properties are reported for hydrophobic ionic liquids (IL) containing 1-methyl-1-propyl pyrrolidinium [MPPyrro]+, 1-methyl-1-butyl pyrrolidinium [MBPyrro]+, 1-methyl-1-propyl piperidinium [MPPip]+, 1-methyl-1-butyl piperidinium [MBPip]+, 1-methyl-1-octyl pyrrolidinium [MOPyrro]+ and 1-methyl-1-octyl piperidinium [MOPip]+ cations. These liquids provide new alternatives to pyridinium and imidazolium ILs. High thermal stability of an ionic liquid increases safety in applications like rechargeable lithium-ion batteries and other electrochemical devices. Thermal properties, ionic conductivities, viscosities, and mutual solubilities with water are reported. In addition, toxicities of selected ionic liquids have been measured using a human cancer cell line. The ILs studied here are sparingly soluble in water but hygroscopic. We show some structure-property relationships that may help to design green solvents for specific applications. While ionic liquids are claimed to be environmentally benign solvents, as yet few data have been published to support these claims.

383

Optimization of Processing and Modeling Issues for Thin Film Solar Cell Devices Including Concepts for the Development of Polycrystalline Multijunctions Annual Subcontract Report, 24 August 1999 - 23 August 2000  

DOE Green Energy (OSTI)

This report describes the results achieved during Phase I of a three-phase subcontract to develop and understand thin-film solar cell technology associated with CuInSe2 and related alloys, a-Si and its alloys, and CdTe. Modules based on all these thin films are promising candidates to meet DOE long-range efficiency, reliability, and manufacturing cost goals. The critical issues being addressed under this program are intended to provide the science and engineering basis for developing viable commercial processes and to improve module performance. The generic research issues addressed are: (1) quantitative analysis of processing steps to provide information for efficient commercial-scale equipment design and operation; (2) device characterization relating the device performance to materials properties and process conditions; (3) development of alloy materials with different bandgaps to allow improved device structures for stability and compatibility with module design; (4) development of improved window/heterojunction layers and contacts to improve device performance and reliability; and (5) evaluation of cell stability with respect to illumination, temperature, and ambient, and with respect to device structure and module encapsulation.

Birkmire, R. W.; Phillips, J. E.; Shafarman, W. N.; Eser, E.; Hegedus, S. S.; McCandless, B. E.

2001-11-14T23:59:59.000Z

384

Electrochromically switched, gas-reservoir metal hydride devices with  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrochromically switched, gas-reservoir metal hydride devices with Electrochromically switched, gas-reservoir metal hydride devices with application to energy-efficient windows Title Electrochromically switched, gas-reservoir metal hydride devices with application to energy-efficient windows Publication Type Journal Article LBNL Report Number LBNL-1089E Year of Publication 2008 Authors Anders, André, Jonathan L. Slack, and Thomas J. Richardson Journal Thin Solid Films Volume 1 Date Published 08/2003 Call Number LBNL-1089E Abstract Proof-of-principle gas-reservoir MnNiMg electrochromic mirror devices have been investigated. In contrast to conventional electrochromic approaches, hydrogen is stored (at low concentration) in the gas volume between glass panes of the insulated glass units (IGUs). The elimination of a solid state ion storage layer simplifies the layer stack, enhances overall transmission, and reduces cost. The cyclic switching properties were demonstrated and system durability improved with the incorporation a thin Zr barrier layer between the MnNiMg layer and the Pd catalyst. Addition of 9% silver to the palladium catalyst further improved system durability. About 100 full cycles have been demonstrated before devices slow considerably. Degradation of device performance appears to be related to Pd catalyst mobility, rather than delamination or metal layer oxidation issues originally presumed likely to present significant challenges.

385

PTask: operating system abstractions to manage GPUs as compute devices  

Science Conference Proceedings (OSTI)

We propose a new set of OS abstractions to support GPUs and other accelerator devices as first class computing resources. These new abstractions, collectively called the PTask API, support a dataflow programming model. Because a PTask graph consists ... Keywords: GPGPU, GPUs, OS design, accelerators, dataflow, gestural interface, operating systems

Christopher J. Rossbach; Jon Currey; Mark Silberstein; Baishakhi Ray; Emmett Witchel

2011-10-01T23:59:59.000Z

386

Test of a Calibration Device for Airborne Lyman-? Hygrometers  

Science Conference Proceedings (OSTI)

A calibration device was designed to fit over the Lyman-? (LA) probes on the NCAR King Air aircraft to allow the introduction of pure nitrogen, oxygen, and carbon dioxide gases into the probe's radiation path. With these three gases, it was ...

Edwin W. Eloranta; Roland B. Stull; Elizabeth E. Ebert

1989-02-01T23:59:59.000Z

387

An application of DCS device to a heat exchange process  

Science Conference Proceedings (OSTI)

In this paper, an application of distributed control system (DCS) device to a heat exchange process is shown. In details, first, nonlinear model and feedback tracking control scheme of a spiral heat exchange process are obtained. Second, the designed ... Keywords: DCS, nonlinear control, nonlinear model, right coprime factorization, robust stability

Junya Okazaki; Shengjun Wen; Mingcong Deng; Dongyun Wang

2012-10-01T23:59:59.000Z

388

Compact multiple-valued multiplexers using negative differential resistance devices  

E-Print Network (OSTI)

Abstract-Quantum electronic devices with negative differen-tial resistance (NDR) characteristics have been used to design compact multiplexers. These multiplexers may be used either as analog multiplexers where the signal on a single select line selects one out of four analog inputs, or as four-valued logic multiplexers where the select line and the input lines represent one of four quantized signal values and the output line corre-sponds to the selected input. Any four-valued logic function can be implemented using only four-valued multiplexers (also known as T-gates), and this T-gate uses just 13 devices (transistors) as compared to 44 devices in CMOS. The design of the T-gate was done using a combination of resonant tunneling diodes (RTD’s) and heterojunction bipolar transistors (HBT’s) with the folded I-V characteristic (NDR characteristic) of the RTD’s providing the compact logic implementation and the HBT’s providing the gain and isolation. The application of the same design principles to the design of T-gates using other NDR devices such as reso-nant tunneling hot electron transistors (RHET’s) and resonant tunneling bipolar transistors (RTBT’s) is also demonstrated. I.

H. L. Chan; S. Mohan; Pinaki Mazumder; Senior Member; George I. Haddad

1996-01-01T23:59:59.000Z

389

Electrocaloric devices based on thini-film heat switches  

SciTech Connect

We describe a new approach to refrigeration and electrical generation that exploits the attractive properties of thin films of electrocaloric materials. Layers of electrocaloric material coupled with thin-film heat switches can work as either refrigerators or electrical generators, depending on the phasing of the applied voltages and heat switching. With heat switches based on thin layers of liquid crystals, the efficiency of these thin-film heat engines can be at least as high as that of current thermoelectric devices. Advanced heat switches would enable thin-film heat engines to outperform conventional vaporcompression devices.

Epstein, Richard I [Los Alamos National Laboratory; Malloy, Kevin J [UNM

2009-01-01T23:59:59.000Z

390

Geek-Up[6.24.11]: Dust-sized 'Dragonfly' Device and Tiny Microvalves |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Dust-sized 'Dragonfly' Device and Tiny Dust-sized 'Dragonfly' Device and Tiny Microvalves Geek-Up[6.24.11]: Dust-sized 'Dragonfly' Device and Tiny Microvalves June 24, 2011 - 7:15pm Addthis A computer simulation of the "dragonfly-inspired" device. | Courtesy of Sandia Laboratory A computer simulation of the "dragonfly-inspired" device. | Courtesy of Sandia Laboratory Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What are the key facts? A dust-size "dragonfly-inspired" device -- which won a Sandia Lab design contest -- may ultimately enable the creation of tiny microvalves for experiments in biological research laboratories and medical facilities. In Sandia National Laboratories' MEMS (microelectromechanical system) University Alliance design contest, a dust-sized dragonfly and a super

391

Medical Device Failure Analysisâ??Specific Materials  

Science Conference Proceedings (OSTI)

...ASM International, 2012, p 343â??359ASM Handbook, Volume 23, Materials for Medical Devices,B.A. James, Medical Device Failure

392

Health IT Mobile Device Use Case Meeting  

Science Conference Proceedings (OSTI)

Health IT Mobile Device Use Case Meeting. Purpose: ... This meeting will address the Health IT project's first use case, Mobile Devices. ...

2013-04-16T23:59:59.000Z

393

Fluid Submersible Sensing Device - Energy Innovation Portal  

The present invention relates to a fluid submersible sensing device and, more particularly, to such a device having sensing structure provided within ...

394

Semiconductor-based, large-area, flexible, electronic devices  

SciTech Connect

Novel articles and methods to fabricate the same resulting in flexible, large-area, triaxially textured, single-crystal or single-crystal-like, semiconductor-based, electronic devices are disclosed. Potential applications of resulting articles are in areas of photovoltaic devices, flat-panel displays, thermophotovoltaic devices, ferroelectric devices, light emitting diode devices, computer hard disc drive devices, magnetoresistance based devices, photoluminescence based devices, non-volatile memory devices, dielectric devices, thermoelectric devices and quantum dot laser devices.

Goyal, Amit (Knoxville, TN)

2011-03-15T23:59:59.000Z

395

Historic Properties  

NLE Websites -- All DOE Office Websites (Extended Search)

at Trinity Site), the Little Boy weapon (the gun-assembled device detonated over Hiroshima) and the Fat Man weapon (the implosion device detonated over Nagasaki), as well as...

396

Radiation-tolerant imaging device  

DOE Patents (OSTI)

A barrier at a uniform depth for an entire wafer is used to produce imaging devices less susceptible to noise pulses produced by the passage of ionizing radiation. The barrier prevents charge created in the bulk silicon of a CCD detector or a semiconductor logic or memory device from entering the collection volume of each pixel in the imaging device. The charge barrier is a physical barrier, a potential barrier, or a combination of both. The physical barrier is formed by an SiO.sub.2 insulator. The potential barrier is formed by increasing the concentration of majority carriers (holes) to combine with the electron's generated by the ionizing radiation. A manufacturer of CCD imaging devices can produce radiation-tolerant devices by merely changing the wafer type fed into his process stream from a standard wafer to one possessing a barrier beneath its surface, thus introducing a very small added cost to his production cost. An effective barrier type is an SiO.sub.2 layer.

Colella, Nicholas J. (Livermore, CA); Kimbrough, Joseph R. (Pleasanton, CA)

1996-01-01T23:59:59.000Z

397

Dual control active superconductive devices  

DOE Patents (OSTI)

A superconducting active device has dual control inputs and is constructed such that the output of the device is effectively a linear mix of the two input signals. The device is formed of a film of superconducting material on a substrate and has two main conduction channels, each of which includes a weak link region. A first control line extends adjacent to the weak link region in the first channel and a second control line extends adjacent to the weak link region in the second channel. The current flowing from the first channel flows through an internal control line which is also adjacent to the weak link region of the second channel. The weak link regions comprise small links of superconductor, separated by voids, through which the current flows in each channel. Current passed through the control lines causes magnetic flux vortices which propagate across the weak link regions and control the resistance of these regions. The output of the device taken across the input to the main channels and the output of the second main channel and the internal control line will constitute essentially a linear mix of the two input signals imposed on the two control lines. The device is especially suited to microwave applications since it has very low input capacitance, and is well suited to being formed of high temperature superconducting materials since all of the structures may be formed coplanar with one another on a substrate.

Martens, Jon S. (Albuquerque, NM); Beyer, James B. (Madison, WI); Nordman, James E. (Madison, WI); Hohenwarter, Gert K. G. (Madison, WI)

1993-07-20T23:59:59.000Z

398

Aerosol can waste disposal device  

DOE Patents (OSTI)

Disclosed is a device for removing gases and liquid from containers. The device punctures the bottom of a container for purposes of exhausting gases and liquid from the container without their escaping into the atmosphere. The device includes an inner cup or cylinder having a top portion with an open end for receiving a container and a bottom portion which may be fastened to a disposal or waste container in a substantially leak-proof manner. A piercing device is mounted in the lower portion of the inner cylinder for puncturing the can bottom placed in the inner cylinder. An outer cylinder having an open end and a closed end fits over the top portion of the inner cylinder in telescoping engagement. A force exerted on the closed end of the outer cylinder urges the bottom of a can in the inner cylinder into engagement with the piercing device in the bottom of the inner cylinder to form an opening in the can bottom, thereby permitting the contents of the can to enter the disposal container. 7 figures.

O' Brien, M.D.; Klapperick, R.L.; Bell, C.

1993-12-21T23:59:59.000Z

399

"Collaborative mobile user interface design": how should companies design the mobile user interface together?  

Science Conference Proceedings (OSTI)

The special session will discuss challenges, real-world examples and future directions in the collaborative design of the user interfaces of mobile services, devices and application in and between Asia and the West. Keywords: China, collaborative-design, design webs, mobile user interface, personal experience design

David M L Williams

2006-10-01T23:59:59.000Z

400

Meta-design: design for designers  

Science Conference Proceedings (OSTI)

One fundamental challenge for the design of the interactive systems of the future is to invent and design environments and cultures in which humans can express themselves and engage in personally meaningful activities. Unfortunately, a large number of ... Keywords: consumer and designer mindsets, designing “out of the box”, domain-oriented design environments, evolutionary growth, impact of new media on design, open evolvable systems, open source, reseeding model, seeding, underdesigned systems

Gerhard Fischer; Eric Scharff

2000-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Microfluidic devices for analysis of red blood cell mechanical properties  

E-Print Network (OSTI)

Decreased deformability of human red blood cells (RBCs) is both a cause of disease and biomarker for disease (1). To traverse blood capillaries, the biconcave disk-shaped RBC must deform dramatically, since the diameter ...

Bow, Hansen Chang

2010-01-01T23:59:59.000Z

402

Fabrication and Electrical Properties of High Energy Density Devices  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2009. Symposium, Ferroelectrics and Multiferroics. Presentation Title, Nano-Scale PLZT ...

403

Engineering the optical properties of subwavelength devices and materials  

E-Print Network (OSTI)

Many applications demand materials with seemingly incompatible optical characteristics. For example, immersion photolithography is a resolution enhancing technique used to fabricate the ever-shrinking nanostructures in ...

Anant, Vikas, 1980-

2007-01-01T23:59:59.000Z

404

Active devices for high temperature microcircuitry. [Silicon and gallium arsenide devices  

DOE Green Energy (OSTI)

As part of a program to develop high temperature electronics for geothermal well instrumentation, a number of solid state diode and transistor types were characterized from room temperature to 300/sup 0/C. The temperature dependence and aging stability of transport and leakage properties were measured. Included in the study were silicon diodes, bipolar transistors, JFETs, MOSFETs, and GaAs MESFETs and JFETs. In summary the results are: diodes and bipolar transistors became extremely leaky at high temperature and are therefore of limited use; silicon MOSFETs and GaAs devices showed unacceptable aging instabilities at high temperatures; silicon JFETs from certain manufacturers were sufficiently stable and had suitable temperature dependent characteristics so that operational circuits could be made. Comparisons were made of experimental device characteristics and those predicted by theory. The theoretical calculations were done using standard equations revised to include appropriate temperature dependent parameters. Close agreement between theory and experiment was found, indicating that unexpected high temperature effects were insignificant. In order to facilitate the use of devices in high temperature hybrids, it was necessary to develop bonding and prescreening techniques. A large variance of JFET 300/sup 0/C operating parameters was found even within a single production lot. Consequently, high temperature prescreening allowed each circuit to be specifically ''pretuned.'' Standard solder, epoxy, and chip and wire attachment technologies were not functional at 300/sup 0/C. Gold-germanium solder, aluminum wire to DuPont 9910 gold film, and diffusion barrier pads were developed to allow high temperature attachment.

Palmer, D.W.; Draper, B.L.; McBrayer, J.D.; White, K.R.

1978-02-01T23:59:59.000Z

405

Evaluation of pulse power devices in electric vehicle propulsion systems  

DOE Green Energy (OSTI)

The application of pulse power devices in electric vehicle propulsion systems to load level the main energy storage battery has been studied. Both high energy density capacitors (ultracapacitors) and high power density, bipolar batteries are considered. Computer simulations of vehicle operation with hybrid (two power source) powertrains indicated the energy storage capacities of the pulse power devices required to load level the main battery are 300 to 500 Wh for the capacitors and 5 to 10 Ah for the bipolar batteries can be reduced from 79 W/kg to about 40 W/kg depending on the vehicle gradeability (speed, percent grade, and length of grade) desired. Evaluation of the status of the technology for the pulse power devices indicated that for both devices, improvements in technology are needed before the devices can be used in EV applications. In the case of the ultracapacitor, the energy density of present devices are 1 to 2 Wh/kg. A minimum energy density of about 5 Wh/kg is needed for electric vehicle applications. Progress in increasing the energy density of ultracapacitors has been rapid in recent years and the prospects for meeting the 5 Wh/kg requirement for EVs appear to be good. For bipolar batteries, a minimum power density of 500 W/kg is needed and the internal resistance must be reduced by about a factor of ten from that found in present designs.

Burke, A.F. (EG and G Idaho, Inc., Idaho Falls, ID (USA)); Dowgiallo, E.J. (USDOE, Washington, DC (USA))

1990-01-01T23:59:59.000Z

406

A Method for Determining Constituent Materials Properties  

Science Conference Proceedings (OSTI)

High-Strain-Rate & Shock Response of Lightweight Materials: How Dynamic Properties Influence the Future Design Landscape for Transportation Applications.

407

Spectral utilization in thermophotovoltaic devices  

DOE Green Energy (OSTI)

Multilayer assemblies of epitaxially-grown, III-V semiconductor materials are being investigated for use in thermophotovoltaic (TPV) energy conversion applications. It has been observed that thick, highly-doped semiconductor layers within cell architectures dominate the parasitic free-carrier absorption (FCA) of devices at wavelengths above the bandgap of the semiconductor material. In this work, the wavelength-dependent, free-carrier absorption of p- and n-type InGaAs layers grown epitaxially onto semi-insulating (SI) InP substrates has been measured and related to the total absorption of long-wavelength photons in thermophotovoltaic devices. The optical responses of the TPV cells are then used in the calculation of spectral utilization factors and device efficiencies.

Clevenger, M.B.; Murray, C.S.

1997-12-31T23:59:59.000Z

408

Visualizing the results of interactive queries for geographic data on mobile devices  

Science Conference Proceedings (OSTI)

The capabilities of current mobile computing devices such as PDAs and mobile phones are making it possible to design and develop mobile GIS applications that provide users with geographic data management and cartographic presentations in the field. However, ... Keywords: GIS, dynamic queries, mobile devices, visualization

Stefano Burigat; Luca Chittaro

2005-11-01T23:59:59.000Z

409

The Web of Things: interconnecting devices with high usability and performance Simon Duquennoy  

E-Print Network (OSTI)

The Web of Things: interconnecting devices with high usability and performance Simon Duquennoy@gemalto.com Abstract In this paper, we show that Web protocols and technolo- gies are good candidates to design the Internet of Things. This approach allows anyone to access embedded devices through a Web application, via

Paris-Sud XI, Université de

410

Energy characterization of mobile devices and applications using power-thermal benchmarks  

Science Conference Proceedings (OSTI)

Power consumption and heat dissipation are the major factors that limit the performance and mobility of battery-powered devices. As they become key elements in the design of mobile devices and their applications, different power and thermal management ... Keywords: Energy characterization, Power benchmark, Power management, Thermal benchmark, Thermal management

Marius Marcu; Dacian Tudor; Horatiu Moldovan; Sebastian Fuicu; Mircea Popa

2009-07-01T23:59:59.000Z

411

An academic kit for integrating mobile devices into the CS curriculum  

Science Conference Proceedings (OSTI)

In this paper we present our freely available academic kit to help universities in integrating mobile devices into the Computer Science (CS) curriculum. The kit was designed and developed at the Centre for Mobile Education and Research at the University ... Keywords: blackberry, mobile application development, mobile devices, programming for fun, teaching computer programming, teaching tools

Qusay H. Mahmoud; Thanh Ngo; Razieh Niazi; Pawel Popowicz; Robert Sydoryshyn; Matthew Wilks; Dave Dietz

2009-07-01T23:59:59.000Z

412

Printed Optics: 3D Printing of Embedded Optical Elements for Interactive Devices  

E-Print Network (OSTI)

., and Takada, Y. Ficon: A tangible display device for tabletop system using optical fiber. In ITS '11, ACM that the design of optical systems for interactive devices can be greatly enhanced. We present the following of individual parts and the manual labor required for assembly. Optical fiber bun- dles, that are typically made

Poupyrev, Ivan

413

Analysis of silicon carbide based semiconductor power devices and their application in power factor correction  

E-Print Network (OSTI)

Recent technological advances have allowed silicon (Si) semiconductor technology to approach the theoretical limits of the Si material; however, power device requirements for many applications are at a stage that the present Si-based power devices cannot handle. The requirements include higher blocking voltages, switching frequencies, efficiency, and reliability. Material technologies superior to Si are needed for future power device developments. Silicon Carbide (SiC) based semiconductor devices offer one such alternative. SiC based power devices exhibit superior properties such as very low switching losses, fast switching behavior, improved reliability and high temperature operation capabilities. Power factor correction stage of power supplies is identified as an area where application of these devices would prove advantageous. In this thesis a high performance, high efficiency, SiC based power factor correction stage is discussed. The proposed topology takes advantage of the superior properties of SiC semiconductor based devices and the reduced number of devices that the dual boost power factor correction topology requires to achieve high efficiency, small size and better performance at high temperature. In addition to this analysis of SiC based power devices is carried out to study their characteristics and performance.

Durrani, Yamin Qaisar

2005-08-01T23:59:59.000Z

414

Positive design  

Science Conference Proceedings (OSTI)

This article is focused on the changes needed in design to create positive solutions for all involved in design processes. It draws upon the rich discussion and discourse from a conference focused on positive design involving managers, designers, and ...

Jurgen Faust

2009-09-01T23:59:59.000Z

415

Acoustic Inspection Devices: Detecting the Undetectable  

Acoustic Inspection Devices: Detecting the Undetectable Emerging homeland security threats and increasingly sophisticated adversaries have heightened ...

416

MHK Technologies/Multi Energy Device | Open Energy Information  

Open Energy Info (EERE)

Multi Energy Device.png Multi Energy Device.png Technology Profile Technology Resource Click here Wave Technology Type Click here Oscillating Water Column Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description Vertical cylinder shaped like a double sided hydrofoil The basic working principle consist of using the pressure reduction that occurs when water flow along a curved surface shaped like a hydrofoil to create a new water flow which can drive a water turbine The device comprises a cylinder with curved side panels and with a water turbine placed inside the cylinder Water flowing past the device will result in pressure reduction at the outer surface of the side panels due to hydrodynamic lift and pressure drag The pressure reduction creates a new water flow where the water flows into the cylinder at the underside further through the water turbine and out through the side panels The new panel design enables them to work even if turbulence occur moreover the design enable concentration of the hydrodynamic lift and drag forces resulting in increased pressure difference between the side panel and the water inlet

417

High-Throughput Dry Processes for Large-Area Devices  

DOE Green Energy (OSTI)

In October 1996, an interdisciplinary team began a three-year LDRD project to study the plasma processes of reactive ion etching and plasma-enhanced chemical vapor deposition on large-area silicon devices. The goal was to develop numerical models that could be used in a variety of applications for surface cleaning, selective etching, and thin-film deposition. Silicon solar cells were chosen as the experimental vehicle for this project because an innovative device design was identified that would benefit from immediate performance improvement using a combination of plasma etching and deposition processes. This report presents a summary of the technical accomplishments and conclusions of the team.

BUSS,RICHARD J.; HEBNER,GREGORY A.; RUBY,DOUGLAS S.; YANG,PIN

1999-11-01T23:59:59.000Z

418

Novel Hydrogen Purification Device Integrated with PEM Fuel Cells  

DOE Green Energy (OSTI)

A prototype device containing twelve membrane tubes was designed, built, and demonstrated. The device produced almost 300 scfh of purified hydrogen at 200 psig feed pressure. The extent of purification met the program target of selectively removing enough impurities to enable industrial-grade hydrogen to meet purity specifications for PEM fuel cells. An extrusion process was developed to produce substrate tubes. Membranes met several test objectives, including completing 20 thermal cycles, exceeding 250 hours of operating life, and demonstrating a flux of 965 scfh/ft2 at 200 psid and 400 C.

Joseph Schwartz; Hankwon Lim; Raymond Drnevich

2010-12-31T23:59:59.000Z

419

Design of a silicon waver breaker  

E-Print Network (OSTI)

Usually multiple MEMS or IC devices are fabricated on a single silicon wafer. Manually separating the components from each other involves scribing and fracturing the silicon. This thesis presents a design for a tool to aid ...

Mukaddam, Kabir James, 1983-

2005-01-01T23:59:59.000Z

420

Design automation for microfluidics-based biochips  

Science Conference Proceedings (OSTI)

Advances in microfluidics technology offer exciting possibilities in the realm of enzymatic analysis, DNA analysis, proteomic analysis involving proteins and peptides, immunoassays, implantable drug delivery devices, and environmental toxicity monitoring. ... Keywords: Microfluidics, biochips, design automation

Krishnendu Chakrabarty; Jun Zeng

2005-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Experimental investigation of energy dissipation behavior of the modified friction device  

E-Print Network (OSTI)

As building materials become stronger, dynamic design and structural control are effective means of improving serviceability in the future's ever lighter structures. The recently proposed modified friction device (MFD) ...

Zahner, Robert Marne

2011-01-01T23:59:59.000Z

422

New nitride-based devices for electrical detection of DNA hybridization  

E-Print Network (OSTI)

In this thesis we designed and began the fabrication of three new solid state sensors for the detection of DNA hybridization through electrical measurements. The first sensor is a surface acoustic wave device with tapered ...

Sheffler, Ryan Taylor

2007-01-01T23:59:59.000Z

423

Controllable needle-free injection : development and verification of a novel device  

E-Print Network (OSTI)

Current needle-free injection technology is based on actuation via compressed springs or gas. These devices are not easy to modify for different depths of injections. This thesis describes the design and verification of a ...

Wendell, Dawn M. (Dawn Marie), 1983-

2006-01-01T23:59:59.000Z

424

Single-use lancet and capillary loading mechanism for complete blood count point of care device  

E-Print Network (OSTI)

As part of the development of a point of care complete blood count device, I designed a single use lancet integrated with a blood collection mechanism and interface and successfully tested a prototype. High speed video was ...

Zimmerman, Julia C

2011-01-01T23:59:59.000Z

425

THE EFFECTS OF INSERTION DEVICES ON BEAM DYNAMICS IN THE ALS  

E-Print Network (OSTI)

on Beam Dynamics in the ALS A. Jackson, E. Forest, H.DEVICES ON BEAM DYNAMICS IN TIm ALS' A. Jackson, E. Forest,Advanced Light Source (ALS) [I], are specifically designed

Jackson, A.

2010-01-01T23:59:59.000Z

426

Encapsulation methods for organic electrical devices  

DOE Patents (OSTI)

The disclosure provides methods and materials suitable for use as encapsulation barriers in electronic devices. In one embodiment, for example, there is provided an electroluminescent device or other electronic device encapsulated by alternating layers of a silicon-containing bonding material and a ceramic material. The encapsulation methods provide, for example, electronic devices with increased stability and shelf-life. The invention is useful, for example, in the field of microelectronic devices.

Blum, Yigal D.; Chu, William Siu-Keung; MacQueen, David Brent; Shi, Yijian

2013-06-18T23:59:59.000Z

427

Divertor target for magnetic containment device  

DOE Patents (OSTI)

In a plasma containment device of a type having superconducting field coils for magnetically shaping the plasma into approximately the form of a torus, an improved divertor target for removing impurities from a "scrape off" region of the plasma comprises an array of water cooled swirl tubes onto which the scrape off flux is impinged. Impurities reflected from the divertor target are removed from the target region by a conventional vacuum getter system. The swirl tubes are oriented and spaced apart within the divertor region relative to the incident angle of the scrape off flux to cause only one side of each tube to be exposed to the flux to increase the burnout rating of the target. The divertor target plane is oriented relative to the plane of the path of the scrape off flux such that the maximum heat flux onto a swirl tube is less than the tube design flux. The containment device is used to contain the plasma of a tokamak fusion reactor and is applicable to other long pulse plasma containment systems.

Luzzi, Jr., Theodore E. (Garden City, NY)

1982-01-01T23:59:59.000Z

428

Property:User Interface | Open Energy Information  

Open Energy Info (EERE)

Interface Interface Jump to: navigation, search This is a property of type String. The allowed values for this property are: Website Spreadsheet Desktop Application Mobile Device Other Pages using the property "User Interface" Showing 25 pages using this property. (previous 25) (next 25) A A New Scheme for the Promotion of Renewable Energies in Developing Countries: The Renewable Energy Regulated Purchase Tariff + Website + AGI-32 + Desktop Application + APFED-Good Practice Database + Website + Accounting for Co-benefits in Asia's Transportation Sector: Methods and Applications + Spreadsheet + ActiveGreenScore + Mobile Device + Advanced Process Engineering Co-Simulator (APECS) + Desktop Application + Agriculture and Land Use National Greenhouse Gas Inventory Software + Desktop Application +

429

Mechanical scriber for semiconductor devices  

DOE Patents (OSTI)

A mechanical scriber using a scribing tip, such as a diamond, provides controlled scriber forces with a spring-loaded compound lever arrangement. The scribing force and range of scribing depth are adjusted by a pair of adjustable micrometer heads. A semiconductor device, such as a multilayer solar cell, can be formed into scribed strips at each layer. 5 figs.

Lin, P.T.

1985-03-05T23:59:59.000Z

430

Magnetoresistance of Nanoscale Molecular Devices  

E-Print Network (OSTI)

are of fundamental nature, leading to the understanding of current-voltage relations. Due to their small flux is how to set up a nanoscale device so that the magnetic field can control the current flowing through it, Jerusalem 91904, Israel Received April 5, 2005 ABSTRACT Affecting the current through a molecular

Rabani, Eran

431

Hydrogen effects in MOS devices  

Science Conference Proceedings (OSTI)

Hydrogen has a dual effect in metal-oxide-semiconductor (MOS) devices, leading to improvement or degradation of their characteristics in many ways. Here, we present a review of results from first-principles calculations on key processes involving hydrogen ... Keywords: Bias temperature instability, Embedment, First principles, Hydrogen, Interface, Metal gate, Nanotubes, SiO2

L. Tsetseris; D. M. Fleetwood; R. D. Schrimpf; X. J. Zhou; I. G. Batyrev; S. T. Pantelides

2007-09-01T23:59:59.000Z

432

Portable vacuum object handling device  

DOE Patents (OSTI)

The disclosure relates to a portable device adapted to handle objects which are not to be touched by hand. A piston and bore wall form a vacuum chamber communicating with an adaptor sealably engageable with an object to be lifted. The piston is manually moved and set to establish vacuum. A valve is manually actuable to apply the vacuum to lift the object.

Anderson, G.H.

1981-07-30T23:59:59.000Z

433

Aerosol can waste disposal device  

DOE Patents (OSTI)

Disclosed is a device for removing gases and liquid from containers. The ice punctures the bottom of a container for purposes of exhausting gases and liquid from the container without their escaping into the atmosphere. The device includes an inner cup or cylinder having a top portion with an open end for receiving a container and a bottom portion which may be fastened to a disposal or waste container in a substantially leak-proof manner. A piercing device is mounted in the lower portion of the inner cylinder for puncturing the can bottom placed in the inner cylinder. An outer cylinder having an open end and a closed end fits over the top portion of the inner cylinder in telescoping engagement. A force exerted on the closed end of the outer cylinder urges the bottom of a can in the inner cylinder into engagement with the piercing device in the bottom of the inner cylinder to form an opening in the can bottom, thereby permitting the contents of the can to enter the disposal container.

O' Brien, Michael D. (Las Vegas, NV); Klapperick, Robert L. (Las Vegas, NV); Bell, Chris (Las Vegas, NV)

1993-01-01T23:59:59.000Z

434

Portable vacuum object handling device  

SciTech Connect

The disclosure relates to a portable device adapted to handle objects which are not to be touched by hand. A piston and bore wall form a vacuum chamber communicating with an adaptor sealably engageable with an object to be lifted. The piston is manually moved and set to establish vacuum. A valve is manually actuatable to apply the vacuum to lift the object.

Anderson, Gordon H. (Los Alamos, NM)

1983-08-09T23:59:59.000Z

435

High temperature electronic gain device  

SciTech Connect

An integrated thermionic device suitable for use in high temperature, high radiation environments. Cathode and control electrodes are deposited on a first substrate facing an anode on a second substrate. The substrates are sealed to a refractory wall and evacuated to form an integrated triode vacuum tube.

McCormick, J. Byron (Los Alamos, NM); Depp, Steven W. (Los Alamos, NM); Hamilton, Douglas J. (Tucson, AZ); Kerwin, William J. (Tucson, AZ)

1979-01-01T23:59:59.000Z

436

High performance thermoelectric nanocomposite device  

DOE Patents (OSTI)

A thermoelectric device includes a nanocomposite material with nanowires of at least one thermoelectric material having a predetermined figure of merit, the nanowires being formed in a porous substrate having a low thermal conductivity and having an average pore diameter ranging from about 4 nm to about 300 nm.

Yang, Jihui (Lakeshore, CA); Snyder, Dexter D. (Birmingham, MI)

2011-10-25T23:59:59.000Z

437

In situ biofilm coupon device  

DOE Patents (OSTI)

An apparatus for characterization of in-situ microbial biofilm populations in subsurface groundwater. The device permits biofilm-forming microorganisms to adhere to packing material while emplaced in a groundwater strata, so that the packing material can be later analyzed for quantity and type of microorganisms, growth rate, and nutrient requirements.

Peyton, Brent M. (Kennewick, WA); Truex, Michael J. (Richland, WA)

1997-01-01T23:59:59.000Z

438

Split ring containment attachment device  

DOE Patents (OSTI)

A containment attachment device is described for operatively connecting a glovebag to plastic sheeting covering hazardous material. The device includes an inner split ring member connected on one end to a middle ring member wherein the free end of the split ring member is inserted through a slit in the plastic sheeting to captively engage a generally circular portion of the plastic sheeting. A collar portion having an outer ring portion is provided with fastening means for securing the device together wherein the glovebag is operatively connected to the collar portion. Hazardous material such as radioactive waste may be sealed in plastic bags for small items or wrapped in plastic sheeting for large items. Occasionally the need arises to access the hazardous material in a controlled manner, that is, while maintaining total containment. Small items could be placed entirely inside a containment glovebag. However, it may not be possible or practical to place large items inside a containment; instead, one or more glovebags could be attached to the plastic sheeting covering the hazardous material. It is this latter application for which the split ring containment attachment device is intended.

Sammel, A.G.

1995-12-31T23:59:59.000Z

439

Mechanical scriber for semiconductor devices  

DOE Patents (OSTI)

A mechanical scriber using a scribing tip, such as a diamond, provides controlled scriber forces with a spring-loaded compound lever arrangement. The scribing force and range of scribing depth are adjusted by a pair of adjustable micrometer heads. A semiconductor device, such as a multilayer solar cell, can be formed into scribed strips at each layer.

Lin, Peter T. (East Brunswick, NJ)

1985-01-01T23:59:59.000Z

440

Interdigitated photovoltaic power conversion device  

DOE Patents (OSTI)

A photovoltaic power conversion device has a top surface adapted to receive impinging radiation. The device includes at least two adjacent, serially connected cells. Each cell includes a semi-insulating substrate and a lateral conductivity layer of a first doped electrical conductivity disposed on the substrate. A base layer is disposed on the lateral conductivity layer and has the same electrical charge conductivity thereof. An emitter layer of a second doped electrical conductivity of opposite electrical charge is disposed on the base layer and forms a p-n junction therebetween. A plurality of spaced channels are formed in the emitter and base layers to expose the lateral conductivity layer at the bottoms thereof. A front contact grid is positioned on the top surface of the emitter layer of each cell. A first current collector is positioned along one outside edge of at least one first cell. A back contact grid is positioned in the channels at the top surface of the device for engagement with the lateral conductivity layer. A second current collector is positioned along at least one outside edge of at least one oppositely disposed second cell. Finally, an interdigitation mechanism is provided for serially connecting the front contact grid of one cell to the back contact grid of an adjacent cell at the top surface of the device.

Ward, James Scott (Englewood, CO); Wanlass, Mark Woodbury (Golden, CO); Gessert, Timothy Arthur (Conifer, CO)

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Interdigitated photovoltaic power conversion device  

DOE Patents (OSTI)

A photovoltaic power conversion device has a top surface adapted to receive impinging radiation. The device includes at least two adjacent, serially connected cells. Each cell includes a semi-insulating substrate and a lateral conductivity layer of a first doped electrical conductivity disposed on the substrate. A base layer is disposed on the lateral conductivity layer and has the same electrical charge conductivity thereof. An emitter layer of a second doped electrical conductivity of opposite electrical charge is disposed on the base layer and forms a p-n junction therebetween. A plurality of spaced channels are formed in the emitter and base layers to expose the lateral conductivity layer at the bottoms thereof. A front contact grid is positioned on the top surface of the emitter layer of each cell. A first current collector is positioned along one outside edge of at least one first cell. A back contact grid is positioned in the channels at the top surface of the device for engagement with the lateral conductivity layer. A second current collector is positioned along at least one outside edge of at least one oppositely disposed second cell. Finally, an interdigitation mechanism is provided for serially connecting the front contact grid of one cell to the back contact grid of an adjacent cell at the top surface of the device. 15 figs.

Ward, J.S.; Wanlass, M.W.; Gessert, T.A.

1999-04-27T23:59:59.000Z

442

Environmentally Benign and Permanent Modifications to Prevent Biofouling on Marine and Hydrokinetic Devices  

DOE Green Energy (OSTI)

Semprus Biosciences is developing environmentally benign and permanent modifications to prevent biofouling on Marine and Hydrokinetic (MHK) devices. Biofouling, including growth on external surfaces by bacteria, algae, barnacles, mussels, and other marine organisms, accumulate quickly on MHK devices, causing mechanical wear and changes in performance. Biofouling on crucial components of hydrokinetic devices, such as rotors, generators, and turbines, imposes substantial mass and hydrodynamic loading with associated efficiency loss and maintenance costs. Most antifouling coatings leach toxic ingredients, such as copper and tributyltin, through an eroding process, but increasingly stringent regulation of biocides has led to interest in the development of non-biocidal technologies to control fouling. Semprus Biosciences research team is developing modifications to prevent fouling from a broad spectrum of organisms on devices of all shapes, sizes, and materials for the life of the product. The research team designed and developed betaine-based polymers as novel underwater coatings to resist the attachment of marine organisms. Different betaine-based monomers and polymers were synthesized and incorporated within various coating formulations. The formulations and application methods were developed on aluminum panels with required adhesion strength and mechanical properties. The coating polymers were chemically stable under UV, hydrolytic and oxidative environments. The sulfobetaine formulations are applicable as nonleaching and stable underwater coatings. For the first time, coating formulations modified with highly packed sulfobetaine polymers were prepared and demonstrated resistance to a broad spectrum of marine organisms. Assays for comparing nonfouling performance were developed to evaluate protein adsorption and bacteria attachment. Barnacle settlement and removal were evaluated and a 60-day field test was performed. Silicone substrates including a commercial fouling release coating were used for comparison. Compared with the unmodified silicone substrates, the sulfobetaine-modified formulations were able to exhibit a 98% reduction in fibrinogen adsorption, 97.0% (E. coli), 99.6% (S. aureus), and 99.5% (C. lytica) reduction in bacteria attachment, and 100% reduction in barnacles cyprid attachment. In addition to the significant improvement in fouling resistance of various organisms, the 60-day field test also showed an evident efficacy from visual assessment, foul rating, and fouling removal test. The research confirmed that the novel antifouling mechanism of betaine polymers provides a new avenue for marine coating development. The developed coatings out-performed currently used nontoxic underwater coatings in a broad spectrum of fouling resistance. By further developing formulations and processing methods for specific devices, the technology is ready for the next stage of development with demonstration in MHK systems.

Zheng Zhang

2012-04-19T23:59:59.000Z

443

Influence of Thermal Treatment on Magnetocaloric Properties of Gd ...  

Science Conference Proceedings (OSTI)

... values for designing high-frequency heat exchangers for magnetic refrigeration devices. Thinning of the Gd samples were carried out on 40 mm diameter mill.

444

Stable operating regime for traveling wave devices  

DOE Patents (OSTI)

Autophase stability is provided for a traveling wave device (TWD) electron beam for amplifying an RF electromagnetic wave in walls defining a waveguide for said electromagnetic wave. An off-axis electron beam is generated at a selected energy and has an energy noise inherently arising from electron gun. The off-axis electron beam is introduced into the waveguide. The off-axis electron beam is introduced into the waveguide at a second radius. The waveguide structure is designed to obtain a selected detuning of the electron beam. The off-axis electron beam has a velocity and the second radius to place the electron beam at a selected distance from the walls defining the waveguide, wherein changes in a density of the electron beam due to the RF electromagnetic wave are independent of the energy of the electron beam to provide a concomitant stable operating regime relative to the energy noise.

Carlsten, Bruce E. (Los Alamos, NM)

2000-01-01T23:59:59.000Z

445

Very high numerical aperture light transmitting device  

DOE Patents (OSTI)

A new light-transmitting device using a SCIN glass core and a novel calcium sodium cladding has been developed. The very high index of refraction, radiation hardness, similar solubility for rare earths and similar melt and viscosity characteristics of core and cladding materials makes them attractive for several applications such as high-numerical-aperture optical fibers and specialty lenses. Optical fibers up to 60 m in length have been drawn, and several simple lenses have been designed, ground, and polished. Preliminary results on the ability to directly cast optical components of lead-indium phosphate glass are also discussed as well as the suitability of these glasses as a host medium for rare-earth ion lasers and amplifiers.

Allison, Stephen W. (Knoxville, TN); Boatner, Lynn A. (Oak Ridge, TN); Sales, Brian C. (Knoxville, TN)

1998-01-01T23:59:59.000Z

446

Surface Micromachined Flexural Plate Wave Device Integrable on Silicon  

SciTech Connect

Small, reliable chemical sensors are needed for a wide range of applications, such as weapon state-of-health monitoring, nonproliferation activities, and manufacturing emission monitoring. Significant improvements in present surface acoustic wave sensors could be achieved by developing a flexural plate-wave (FPW) architecture, in which acoustic waves are excited in a thin sensor membrane. Further enhancement of device performance could be realized by integrating a piezoelectric thin film on top of the membrane. These new FPW-piezoelectric thin film devices would improve sensitivity, reduce size, enhance ruggedness and reduce the operating frequency so that the FPW devices would be compatible with standard digital microelectronics. Development of these piezoelectric thin film // FPW devices requires integration of (1) acoustic sensor technology, (2) silicon rnicromachining techniques to fabricate thin membranes, and (3) piezoelectric thin films. Two piezoelectric thin film technologies were emphasized in this study: Pb(Zr,Ti)O{sub 3} (PZT) and AlN. PZT thin films were of sufficient quality such that the first high frequency SAW measurements on PZT thin films were measured during the course of this study. Further, reasonable ferroelectric properties were obtained from PZT films deposited on Si surface micromachined FPW device membranes. Fundamental understanding of the effect of nanodimension interfacial layers on AlN thin film domain configurations and piezoelectric response was developed. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the US Department of Energy under contract DE-AC04-94AL85000.

Clem, P.G.; Dimos, D.; Garino, T.J.; Martin, S.J.; Mitchell, M.A.; Olson, W.R.; Ruffner, J.A.; Schubert, W.K.; Tuttle, B.A.

1999-01-01T23:59:59.000Z

447

Chapter 9: Photovoltaic DevicesChapter 9: Photovoltaic Devices Solar energy spectrumSolar energy spectrum  

E-Print Network (OSTI)

;Photovoltaic devices or solar cells convert thePhotovoltaic devices or solar cells convert the incident solar 4 Solar cell plant #12;Cars powered by photovoltaic devices PHYS 5320 Chapter Nine 5 #12;SolarChapter 9: Photovoltaic DevicesChapter 9: Photovoltaic Devices Solar energy spectrumSolar energy

Wang, Jianfang

448

Genome Properties Database  

DOE Data Explorer (OSTI)

The Genome Properties system consists of a suite of "Properties" which are carefully defined attributes of prokaryotic organisms whose status can be described by numerical values or controlled vocabulary terms for individual completely sequenced genomes. Evaluation of these properties may take place via manual curation or by computer algorithms (numerical calculations or rules-based assignment of controlled vocabulary terms). The Genome Properties system has been designed to capture the widest possible range of attributes and currently encompasses taxonomic terms, genometric calculations, metabolic pathways, systems of interacting macromolecular components and quantitative and descriptive experimental observations (phenotypes) from the literature. Wherever possible, Genome Properties are linked to traceable lines of evidence and links are provided to data for any genes which are part of this evidence. The primary source of evidence linking genes to properties is homology modelling using Hidden Markov Models (HMMs) from the TIGRFAMs and Pfam databases. (Taken from the Genome Properties Home Page)(Specialized Interface)

Haft, Daniel H.; Selengut, Jeremy D.; Brinkac, Lauren M.; Zafar, Nikhat; White, Owen

449

2.72 Elements of Mechanical Design, Spring 2006  

E-Print Network (OSTI)

Examination and practice in the application of many mechanical design elements, including control components. Students working in groups design, fabricate, and test prototype devices in response to requests from industrial ...

Frey, Daniel

450

Using an Embedded Device Network for Lighting and Building Equipment  

NLE Websites -- All DOE Office Websites (Extended Search)

Using an Embedded Device Network for Lighting and Building Equipment Using an Embedded Device Network for Lighting and Building Equipment Control Speaker(s): Francis Rubinstein Date: December 5, 2002 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare IBECS, an implementation of an Embedded Device Network designed to allow communications between lighting systems, building equipment, and sensors and meters will be presented during this seminar. IBECS is a low-cost network infrastructure that piggybacks on existing Ethernets to allow control of building loads at an added cost under $5/control point. Several core components of the IBECS technology have been developed and tested at LBNL including: a network/ballast interface, an addressable light switch, a motorized blind interface, an environmental sensor (capable of measuring

451

MIT Device Simulation WebLab : an online simulator for microelectronic devices  

E-Print Network (OSTI)

In the field of microelectronics, a device simulator is an important engineering tool with tremendous educational value. With a device simulator, a student can examine the characteristics of a microelectronic device described ...

Solis, Adrian (Adrian Orbita)

2005-01-01T23:59:59.000Z

452

Recombination device for storage batteries  

DOE Patents (OSTI)

A recombination device including a gas-tight enclosure connected to receive the discharge gases from a rechargeable storage battery. Catalytic material for the recombination of hydrogen and oxygen to form water is supported within the enclosure. The enclosure is sealed from the atmosphere by a liquid seal including two vertical chambers interconnected with an inverted U-shaped overflow tube. The first chamber is connected at its upper portion to the enclosure and the second chamber communicates at its upper portion with the atmosphere. If the pressure within the enclosure differs as overpressure or vacuum by more than the liquid level, the liquid is forced into one of the two chambers and the overpressure is vented or the vacuum is relieved. The recombination device also includes means for returning recombined liquid to the battery and for absorbing metal hydrides.

Kraft, H.; Ledjeff, K.

1984-01-01T23:59:59.000Z

453

Variable ratio regenerative braking device  

DOE Patents (OSTI)

Disclosed is a regenerative braking device (10) for an automotive vehicle. The device includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (36) and an output shaft (42), clutches (38, 46) and brakes (40, 48) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. The rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft is clutched to the transmission while the brake on the output shaft is applied, and are torsionally relaxed to deliver energy to the vehicle when the output shaft is clutched to the transmission while the brake on the input shaft is applied. The transmission ratio is varied to control the rate of energy accumulation and delivery for a given rotational speed of the vehicle drivetrain.

Hoppie, Lyle O. (Birmingham, MI)

1981-12-15T23:59:59.000Z

454

Fueling of magnetic confinement devices  

DOE Green Energy (OSTI)

A general overview of the fueling of magnetic confinement devices is presented, with particular emphasis on recent experimental results. Various practical fueling mechanisms are considered, such as cold gas inlet (or plasma edge fueling), neutral beam injection, and injection of high speed cryogenic hydrogen pellets. The central role played by charged particle transport and recycle of plasma particles from material surfaces in contact with the plasma is discussed briefly. The various aspects of hydrogen pellet injection are treated in detail, including applications to the production of high purity start-up plasmas for stellarators and other devices, refueling of tokamak plasmas, pellet ablation theory, and the technology and performance characteristics of low and high speed pellet injectors.

Milora, S.L.

1982-04-01T23:59:59.000Z

455

Recombination device for storage batteries  

SciTech Connect

A recombination device including a gas-tight enclosure connected to receive he discharge gases from a rechargeable storage battery. Catalytic material for the recombination of hydrogen and oxygen to form water is supported within the enclosure. The enclosure is sealed from the atmosphere by a liquid seal including two vertical chambers interconnected with an inverted U-shaped overflow tube. The first chamber is connected at its upper portion to the enclosure and the second chamber communicates at its upper portion with the atmosphere. If the pressure within the enclosure differs as overpressure or vacuum by more than the liquid level, the liquid is forced into one of the two chambers and the overpressure is vented or the vacuum is relieved. The recombination device also includes means for returning recombined liquid to the battery and for absorbing metal hydrides.

Kraft, Helmut (Liederbach, DE); Ledjeff, Konstantin (Bad Krozingen, DE)

1985-01-01T23:59:59.000Z

456

Nanowire structures and electrical devices  

DOE Patents (OSTI)

The present invention provides structures and devices comprising conductive segments and conductance constricting segments of a nanowire, such as metallic, superconducting or semiconducting nanowire. The present invention provides structures and devices comprising conductive nanowire segments and conductance constricting nanowire segments having accurately selected phases including crystalline and amorphous states, compositions, morphologies and physical dimensions, including selected cross sectional dimensions, shapes and lengths along the length of a nanowire. Further, the present invention provides methods of processing nanowires capable of patterning a nanowire to form a plurality of conductance constricting segments having selected positions along the length of a nanowire, including conductance constricting segments having reduced cross sectional dimensions and conductance constricting segments comprising one or more insulating materials such as metal oxides.

Bezryadin, Alexey (Champaign, IL); Remeika, Mikas (Urbana, IL)

2010-07-06T23:59:59.000Z

457

Bumper wall for plasma device  

DOE Patents (OSTI)

Operation of a plasma device such as a reactor for controlled thermonuclear fusion is facilitated by an improved bumper wall enclosing the plasma to smooth the flow of energy from the plasma as the energy impinges upon the bumper wall. The bumper wall is flexible to withstand unequal and severe thermal shocks and it is readily replaced at less expense than the cost of replacing structural material in the first wall and blanket that surround it.

Coultas, Thomas A. (Hinsdale, IL)

1977-01-01T23:59:59.000Z

458

Ion plated electronic tube device  

DOE Patents (OSTI)

An electronic tube and associated circuitry which is produced by ion plating techniques. The process is carried out in an automated process whereby both active and passive devices are produced at very low cost. The circuitry is extremely reliable and is capable of functioning in both high radiation and high temperature environments. The size of the electronic tubes produced are more than an order of magnitude smaller than conventional electronic tubes.

Meek, T.T.

1983-10-18T23:59:59.000Z

459

Radio frequency coaxial feedthrough device  

DOE Patents (OSTI)

A radio frequency coaxial vacuum feedthrough is provided which utilizes a cylindrical ceramic vacuum break formed of an alumina ceramic. The cylinder is coaxially disposed and brazed between tapered coaxial conductors to form a vacuum sealed connection between a pressurized upstream coaxial transmission line and a utilization device located within a vacuum container. The feedthrough provides 50 ohm matched impedance RF feedthrough up to about 500 MHz at power levels in the multimegawatt range.

Owens, Thomas L. (Kingston, TN); Baity, Frederick W. (Oak Ridge, TN); Hoffman, Daniel J. (Oak Ridge, TN); Whealton, John H. (Oak Ridge, TN)

1987-01-01T23:59:59.000Z

460

Article removal device for glovebox  

DOE Patents (OSTI)

An article removal device for a glovebox is described comprising a conduit extending through a glovebox wall which may be closed by a plug within the glovebox, and a fire-resistant container closing the outer end of the conduit and housing a removable container for receiving pyrophoric or otherwise hazardous material without disturbing the interior environment of the glovebox or adversely affecting the environment outside of the glovebox. (Official Gazette)

Guyer, R.H.; Leebl, R.G.

1973-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "device design properties" 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

Portable vacuum object handling device  

DOE Patents (OSTI)

The disclosure relates to a portable device adapted to handle objects which are not to be touched by hand. A piston and bore wall form a vacuum chamber communicating with an adaptor sealably engageable with an object to be lifted. The piston is manually moved and set to establish vacuum. A valve is manually actuatable to apply the vacuum to lift the object. 1 fig.

Anderson, G.H.

1983-08-09T23:59:59.000Z

462

Detection device for hazardous material  

DOE Patents (OSTI)

This invention is comprised of a detection device that is activated by the interaction of a hazardous chemical with a coating interactive with said chemical on an optical fiber thereby reducing the amount of light passing through the fiber to a light detector. A combination of optical filters separates the light into a signal beam and a reference beam which after detection, appropriate amplification, and comparison with preset internal signals, activates an alarm means if a predetermined level of contaminant is observed.

Partin, J.K.; Grey, A.E.

1990-12-31T23:59:59.000Z

463

Buoyancy-Driven Polymerase Chain Reaction (PCR) Devices  

Science Conference Proceedings (OSTI)

Polymerase chain reaction (PCR) facilitates DNA detection by significantly increasing the concentration of specific DNA segments. A new class of PCR instruments uses a buoyancy-driven re-circulating flow to thermally cycle the DNA sample and benefits from reduced cycle times, low sample volumes, a miniaturized format, and low power consumption. This paper analyzes a specific buoyancy PCR device in a micro-channel ''race-track'' geometry to determine key parameters about PCR cycle times and other figures of merit as functions of device dimensions. The 1-D model balances the buoyancy driving force with frictional losses. A hydrostatic pressure imbalance concept is used between the left and right sides of the fluid loop to calculate the buoyancy driving force. Velocity and temperature distributions within the channels are determined from two-dimensional analysis of the channel section, with developing region effects included empirically through scaled values of the local Nusselt number. Good agreement between four independent verification steps validate the 1-D simulation approach: (1) analytical expressions for the thermal entrance length are compared against, (2) comparison with a full 3-D finite element simulation, (3) comparison with an experimental flow field characterization, and (4) calculation of the minimum PCR runtime required to get a positive PCR signal from the buoyancy-driven PCR device. The 1-D approach closely models an actual buoyancy-driven PCR device and can further be used as a rapid design tool to simulate buoyancy PCR flows and perform detailed design optimizations studies.

Ness, K D; Wheeler, E K; Benett, W; Stratton, P; Christian, A; Chen, A; Ortega, J; Weisgraber, T H; Goodson, K E

2004-09-28T23:59:59.000Z

464

A thermophotovoltaic energy conversion device  

DOE Patents (OSTI)

A thermophotovoltaic device and a method for making the thermophotovoltaic device are disclosed. The device includes an n-type semiconductor material substrate having top and bottom surfaces, a tunnel junction formed on the top surface of the substrate, a region of active layers formed on top of the tunnel junction and a back surface reflector (BSR). The tunnel junction includes a layer of heavily doped n-type semiconductor material that is formed on the top surface of the substrate and a layer of heavily doped p-type semiconductor material formed on the n-type layer. An optional pseudomorphic layer can be formed between the n-type and p-type layers. A region of active layers is formed on top of the tunnel junction. This region includes a base layer of p-type semiconductor material and an emitter layer of n-type semiconductor material. An optional front surface window layer can be formed on top of the emitter layer. An optional interference filter can be formed on top of the emitter layer or the front surface window layer when it is used.

Charache, G.W.; Baldasaro, P.F.; Egley, J.L.

1996-12-31T23:59:59.000Z

465

Infrared emitting device and method  

DOE Patents (OSTI)

An infrared emitting device and method. The infrared emitting device comprises a III-V compound semiconductor substrate upon which are grown a quantum-well active region having a plurality of quantum-well layers formed of a ternary alloy comprising InAsSb sandwiched between barrier layers formed of a ternary alloy having a smaller lattice constant and a larger energy bandgap than the quantum-well layers. The quantum-well layers are preferably compressively strained to increase the threshold energy for Auger recombination; and a method is provided for determining the preferred thickness for the quantum-well layers. Embodiments of the present invention are described having at least one cladding layer to increase the optical and carrier confinement in the active region, and to provide for waveguiding of the light generated within the active region. Examples have been set forth showing embodiments of the present invention as surface- and edge-emitting light emitting diodes (LEDs), an optically-pumped semiconductor laser, and an electrically-injected semiconductor diode laser. The light emission from each of the infrared emitting devices of the present invention is in the midwave infrared region of the spectrum from about 2 to 6 microns.

Kurtz, Steven R. (Albuquerque, NM); Biefeld, Robert M. (Albuquerque, NM); Dawson, L. Ralph (Albuquerque, NM); Howard, Arnold J. (Albuquerque, NM); Baucom, Kevin C. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

466

Energy-Conscious, Deterministic I/O Device Scheduling In Hard . . .  

E-Print Network (OSTI)

Energy consumption is an important design parameter for embedded and portable systems. Software-controlled (or dynamic) power management (DPM) has emerged as an attractive alternative to inflexible hardware solutions. However, DPM via I/O device scheduling for real-time systems has not been considered before. We present an online I/O device scheduler, which we call lowenergy device scheduler (LEDES), for hard real-time systems that reduces the energy consumption of I/O devices. LEDES takes as inputs a predetermined task schedule and a device-usage list for each task and it generates a sequence of sleep/working states for each device such that the energy consumption of the device is minimized. It also guarantees that real-time constraints are not violated. We then present a more general I/O device scheduler, which we call multistate constrained low-energy scheduler (MUSCLES), for handling I/O devices with multiple power states. MUSCLES generates a sequence of power states for each I/O device while guaranteeing that real-time constraints are not violated. We present several realistic case studies to show that LEDES and MUSCLES reduce energy consumption significantly for hard real-time systems.

Vishnu Swaminathan; Krishnendu Chakrabarty

2003-01-01T23:59:59.000Z

467

Design of Zinc Oxide Based Solid-State Excitonic Solar Cell with Improved Efficiency  

E-Print Network (OSTI)

Excitonic photovoltaic devices, including organic, hybrid organic/inorganic, and dye-sensitized solar cells, are attractive alternatives to conventional inorganic solar cells due to their potential for low cost and low temperature solution-based processing on flexible substrates in large scale. Though encouraging, they are currently limited by the efficiency from not yet optimized structural and material parameters and poor overall knowledge regarding the fundamental details. This dissertation aims to achieve improved performance of hybrid solar cells by enhancing material property and designing new device architecture. The study begins with the addition of XD-grade single-walled carbon nanotube (XDSWNT) into poly(3-hexylthiophene) (P3HT) to improve the current density. By having a weight ratio of XDSWNT and P3HT equaled to 0.1:1, short-circuit current was quadrupled from 0.12 mA cm-2 to 0.48 mA cm-2 and solar cell efficiency was tripled from 0.023% to 0.07%, compared to devices with pure P3HT as a hole transport material. Secondly, a significant improvement in device efficiency with 250 nm long ZnO nanorod arrays as photoanodes has been achieved by filling the interstitial voids of the nanorod arrays with ZnO nanoparticles. The overall power conversion efficiency increased from 0.13% for a nanorod-only device to 0.34% for a device with combined nanoparticles and nanorod arrays. The higher device efficiency in solid-state DSSCs with hybrid nanorod/nanoparticle photoanodes is originated from both large surface area provided by nanoparticles for dye adsorption and efficient charge transport provided by the nanorod arrays to reduce the recombinations of photogenerated carriers. Followed by the novel layer-by-layer self-assembly deposition process, the hybrid photoanode study was extended to the longer ZnO nanorod arrays. The best performance, 0.64%, was achieved when the thickness of the photoanodes equaled to 1.2 ?m. Finally, the photovoltaic devices were modified by adding ZnO nanoarpticles into P3HT to increase interfacial area between ZnO and P3HT. The efficiency was enhanced from 0.18% to 0.45% when the ZnO nanorod arrays were 625 nm in length. Our successful design of the device morphology significantly contributes to the performance of solid-state hybrid solar cells.

Lee, Tao Hua

2011-12-01T23:59:59.000Z

468

Release strategies for making transferable semiconductor structures, devices and device components  

DOE Patents (OSTI)

Provided are methods for making a device or device component by providing a multilayer structure having a plurality of functional layers and a plurality of release layers and releasing the functional layers from the multilayer structure by separating one or more of the release layers to generate a plurality of transferable structures. The transferable structures are printed onto a device substrate or device component supported by a device substrate. The methods and systems provide means for making high-quality and low-cost photovoltaic devices, transferable semiconductor structures, (opto-)electronic devices and device components.

Rogers, John A. (Champaign, IL); Nuzzo, Ralph G. (Champaign, IL); Meitl, Matthew (Raleigh, NC); Ko, Heung Cho (Urbana, IL); Yoon, Jongseung (Urbana, IL); Menard, Etienne (Durham, NC); Baca, Alfred J. (Urbana, IL)

2011-04-26T23:59:59.000Z

469

NREL: Computational Science - Inverse Design  

NLE Websites -- All DOE Office Websites (Extended Search)

Inverse Design Inverse Design The NREL Computational Science Center collaborates with the High Throughput and Inverse Band Structure (HT/IBS) Group within the Center for Inverse Design (CID) to research, design, and create materials with given target properties. The Center for Inverse Design is an Energy Frontier Research Center of the U.S. Department of Energy Office of Science. To address a crucial scientific grand challenge, the Center is pursuing a new approach to material science. Rather than using the conventional direct approach ("Given the structure, find the electronic properties"), we are using a "materials by inverse design" approach ("Given the desired property, find the structure"). Illustration of a blue arrow pointing to a graphic with three curved lines that represent an electronic structure and blue arrow pointing to a red and blue balls that represent an atomic configuration.

470

Atomic-phase interference devices based on ring-shaped Bose-Einstein condensates: Two ring case  

E-Print Network (OSTI)

We theoretically investigate the ground-state properties and quantum dynamics of a pair of adjacent ring-shaped Bose-Einstein condensates that are coupled via tunneling. This device, which is the analogue of a symmetric superconducting quantum interference device, is the simplest version of what we term an Atomic-Phase Interference Device (APHID). The two-ring APHID is shown to be sensitive to rotation.

B. P. Anderson; K. Dholakia; E. M. Wright

2002-09-10T23:59:59.000Z

471

Renewable Devices Ltd | Open Energy Information  

Open Energy Info (EERE)

Devices Ltd Jump to: navigation, search Name Renewable Devices Ltd Place Edinburgh, Scotland, United Kingdom Zip EH26 0PH Sector Wind energy Product Holding company for a micro...

472

Implementation for simplifying Bluetooth device connection methods  

E-Print Network (OSTI)

This thesis provides a way for users to easily add and remove devices to secure groups, allowing for a more intuitive way of making connections between devices. These groups allow users to seamlessly make connections between ...

Wan, Tehyih Debbie, 1981-

2004-01-01T23:59:59.000Z

473

Local Option - Property Tax Credit for Renewables and Energy Conservation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Local Option - Property Tax Credit for Renewables and Energy Local Option - Property Tax Credit for Renewables and Energy Conservation Devices Local Option - Property Tax Credit for Renewables and Energy Conservation Devices < Back Eligibility Agricultural Commercial Industrial Low-Income Residential Multi-Family Residential Residential Savings Category Other Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Maximum Rebate Varies by jurisdiction. Program Info State Maryland Program Type Property Tax Incentive Rebate Amount Varies by jurisdiction; credit may be available for up to 3 years. Title 9 of Maryland's property tax code provides local governments the option to allow a property tax credit for buildings equipped with a solar, geothermal or qualifying energy conservation device. These devices may be

474

Biomedical Materials Implants and Devices  

Science Conference Proceedings (OSTI)

Mar 7, 2013 ... In order to solve this 'stress shield effect', TNZ40 alloy has been designed and fabricated, which shows excellent bio-compatibility, better bone ...

475

Innovations in Semiconductor Devices for Exascale ...  

Science Conference Proceedings (OSTI)

Innovations in Semiconductor Devices for Exascale Computing. TC Chen IBM Fellow and Vice President of Science and ...

2010-10-05T23:59:59.000Z

476

Measuring Devices: Liquefied Petroleum Gas Liquid ...  

Science Conference Proceedings (OSTI)

Liquefied Petroleum Gas Liquid-Measuring Devices. Intro about it. EPOs, Field Manual, Training Materials & Presentaions, Newsletter Articles, Other ...

2010-10-05T23:59:59.000Z

477

Probing Graphene Electronic Devices with Atomic Scale ...  

Science Conference Proceedings (OSTI)

... News Articles: Real-World Graphene Devices May Have a Bumpy Ride. Two Graphene Layers May Be Better Than One. ...

2012-06-06T23:59:59.000Z

478

Acoustic enhancement for photo detecting devices  

DOE Patents (OSTI)

Provided are improvements to photo detecting devices and methods for enhancing the sensitivity of photo detecting devices. A photo detecting device generates an electronic signal in response to a received light pulse. An electro-mechanical acoustic resonator, electrically coupled to the photo detecting device, damps the electronic signal and increases the signal noise ratio (SNR) of the electronic signal. Increased photo detector standoff distances and sensitivities will result.

Thundat, Thomas G; Senesac, Lawrence R; Van Neste, Charles W

2013-02-19T23:59:59.000Z

479

Water Filtration Device and Method of Fabrication  

Disclosure Number 200501522 Technology Summary This invention relates to a regenerable water filtration device and the method for fabricating this ...

480

VA Medical Device Protection Program (MDPP)  

Science Conference Proceedings (OSTI)

... Photo Source: Idaho Department of Commerce ... in patient healthcare for diagnosis, treatment, or monitoring; ... medical system: Any group of devices ...

2011-05-11T23:59:59.000Z

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481

Personal Annunciation Device - Energy Innovation Portal  

The Personal Annunciation Device provides both the means to notify individuals instantly of an emergency situation, and also their approximate ...

482

Method of making monolithic intergrated III-V type laser devices and silicon devices on silicon  

Science Conference Proceedings (OSTI)

This patent describes a method of fabricating compound semiconductor devices of III-V or II-VI material and semiconductor devices of silicon on a common substrate. It comprises: forming Si electronic devices on selected areas of the substrate; forming a mask layer over the Si devices and the selected regions; forming openings through the mask layer to exposure the selected regions; forming layers of the compound semi-conductor over at least the exposed selected regions which layers are single crystalline and form optoelectronic compound semiconductor devices with a lasing layer; forming contact metallization on the devices; removing regions of silicon adjacent and underlying portions of the compound semiconductor devices leaving the compound semiconductor devices isolated from silicon on lateral sides with two cantilevered beam sections of compound semiconductor devices extending in opposite directions; and separating the cantilevered sections from the compound semiconductor devices to provide end facets for the compound semiconductor devices.

Zavracky, P.M.

1990-07-10T23:59:59.000Z

483

Design and installation manual for thermal energy storage  

DOE Green Energy (OSTI)

The purpose of this manual is to provide information on the design and installation of thermal energy storage in active solar systems. It is intended for contractors, installers, solar system designers, engineers, architects, and manufacturers who intend to enter the solar energy business. The reader should have general knowledge of how solar heating and cooling systems operate and knowledge of construction methods and building codes. Knowledge of solar analysis methods such as f-Chart, SOLCOST, DOE-1, or TRNSYS would be helpful. The information contained in the manual includes sizing storage, choosing a location for the storage device, and insulation requirements. Both air-based and liquid-based systems are covered with topics on designing rock beds, tank types, pump and fan selection, installation, costs, and operation and maintenance. Topics relevant to latent heat storage include properties of phase-change materials, sizing the storage unit, insulating the storage unit, available systems, and cost. Topics relevant to heating domestic water include safety, single- and dual-tank systems, domestic water heating with air- and liquid-based space heating systems, and stand alone domestics hot water systems. Several appendices present common problems with storage systems and their solutions, heat transfer fluid properties, economic insulation thickness, heat exchanger sizing, and sample specifications for heat exchangers, wooden rock bins, steel tanks, concrete tanks, and fiberglass-reinforced plastic tanks.

Cole, R L; Nield, K J; Rohde, R R; Wolosewicz, R M

1980-01-01T23:59:59.000Z

484

Design and manufacture of an electro-mechanical hand position tracker  

E-Print Network (OSTI)

This thesis discusses the conceptual design, manufacture, and assembly of a device that tracks the movements and position of a user's hand. This device will be used for stroke patients undergoing rehabilitation using robotic ...

Tan, Nicola

2007-01-01T23:59:59.000Z