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Note: This page contains sample records for the topic "alluvial fan deposits" 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

E-Print Network 3.0 - alluvial fan deposits Sample Search Results  

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

FANS: THE VENEZUELA DEBRIS FLOW AND FLASH FLOOD DISASTER Summary: and flood hazard sediment deposition in an alluvial fan on alluvial fans extremely dangerous. channel... ) in...

2

Alluvial-fan deposits of Eldorado and Piute Valleys Alluvial-fan deposits are mapped as allostratigraphic units  

E-Print Network (OSTI)

that may be subject to intermittent flooding from active channels. Young alluvial-fan depositsMFan-piedmont and interfluvial wash terrace remnants; pebble-cobble to boulder gravel; small pebble sand where dominated by grus-cobble to boulder gravel. Deposits are poorly sorted; generally matrix supported; poorly to moderately stratified

Tingley, Joseph V.

3

E-Print Network 3.0 - alluvial fan nye Sample Search Results  

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

Abstract. Alluvial fans of alpine torrents are both natural deposition areas for sediment discharged... on alluvial fans depends on proper iden- tification of ... Source:...

4

E-Print Network 3.0 - alluvial deposits Sample Search Results  

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

FANS: THE VENEZUELA DEBRIS FLOW AND FLASH FLOOD DISASTER Summary: and flood hazard sediment deposition in an alluvial fan on alluvial fans extremely dangerous. channel... ) in...

5

Geomorphology and morphometric characteristics of alluvial fans, Guadalupe Mountains National Park and adjacent areas, west Texas and New Mexico  

E-Print Network (OSTI)

............................................................ 29 14 Alluvial fans along the Guadalupe Mountains in Big Dog Canyon........ 31 15 Alluvial fans along the Brokeoff Mountains in Big Dog Canyon........... 35 16 View of alluvial fans from their drainage basins.................................. 75 27 Salt Basin-Brokeoff Mountains alluvial fan group ................................. 76 28 Big Dog Canyon-Brokeoff Mountains alluvial fan group....................... 77 29 Big Dog Canyon-Guadalupe Mountains alluvial fan group...

Given, Jeffrey Lyle

2004-09-30T23:59:59.000Z

6

E-Print Network 3.0 - alluvial fan sedimentation Sample Search...  

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

alluvial fans commonly occur with little to no warning, and have high velocities and sediment... with little warning, travel at high speeds, and carry massive amounts of sediment...

7

E-Print Network 3.0 - alluvial fan surfaces Sample Search Results  

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

Park: Climatic and intrinsic controls on Holocene geomorphic processes Summary: similar burn surfaces in numerous alluvial-fan stratigraphic sections (Figs. 3b and 3c). Rarely......

8

Statistic inversion of multi-zone transition probability models for aquifer characterization in alluvial fans  

E-Print Network (OSTI)

Understanding the heterogeneity arising from the complex architecture of sedimentary sequences in alluvial fans is challenging. This paper develops a statistical inverse framework in a multi-zone transition probability approach for characterizing the heterogeneity in alluvial fans. An analytical solution of the transition probability matrix is used to define the statistical relationships among different hydrofacies and their mean lengths, integral scales, and volumetric proportions. A statistical inversion is conducted to identify the multi-zone transition probability models and estimate the optimal statistical parameters using the modified Gauss-Newton-Levenberg-Marquardt method. The Jacobian matrix is computed by the sensitivity equation method, which results in an accurate inverse solution with quantification of parameter uncertainty. We use the Chaobai River alluvial fan in the Beijing Plain, China, as an example for elucidating the methodology of alluvial fan characterization. The alluvial fan is divided...

Zhu, Lin; Gong, Huili; Gable, Carl; Teatini, Pietro

2015-01-01T23:59:59.000Z

9

Reconstructing the timing of flash floods using 10Be surface exposure dating at Leidy Creek alluvial fan and valley, White Mountains, California–Nevada, USA  

Science Journals Connector (OSTI)

Abstract Large alluvial fans characterize the piedmonts of the White Mountains, California–Nevada, USA, with large boulders strewn across their surfaces. The boulders are interpreted as flash floods deposits with an unclear trigger for the transport process. Several triggers are possible, including glacial lake outburst floods (GLOFs), thunderstorms or rainfall on snow cover. From a paleoenvironmental perspective, the origin of the flash floods is of fundamental importance. The alluvial fans that flank the White Mountains at Leidy Creek display particularly impressive examples of these deposits. The boulder deposits and the source catchment at Leidy Creek were examined using 10Be terrestrial cosmogenic nuclide (TCN) surface exposure dating to help elucidate their age and origin. All boulders dated on the alluvial fans date to the Holocene. This is in accordance with the geomorphic analyses of the Leidy Creek catchment and its terraces and sediment ridges, which were also dated to the Holocene using optically stimulated luminescence (OSL) and 10Be surface exposure. The results suggest that the boulders on the alluvial fan were deposited by flash floods during thunderstorm events affecting the catchment of the Leidy Creek valley. Paleomonsoonal-induced mid-Holocene flash floods are the most plausible explanation for the discharges needed for these boulder aggradations, but a regional dataset is needed to confirm this explanation.

Markus Fuchs; Rebecca Reverman; Lewis A. Owen; Kurt L. Frankel

2014-01-01T23:59:59.000Z

10

Dating Fan Deposits with Cosmogenic Nuclides  

Science Journals Connector (OSTI)

Boulders are preferable to smaller clasts in that ... time since deposition on the fan. Large boulders are produced through rapid large-scale mass ... to the fan in debris flows or other flood events. Although in...

Susan Ivy-Ochs; Miriam Dühnforth…

2013-01-01T23:59:59.000Z

11

NATURAL HAZARDS ON ALLUVIAL FANS: THE VENEZUELA DEBRIS FLOW AND FLASH FLOOD DISASTER  

E-Print Network (OSTI)

NATURAL HAZARDS ON ALLUVIAL FANS: THE VENEZUELA DEBRIS FLOW AND FLASH FLOOD DISASTER In December Venezuela. Rainfall on December 2-3 totaled 200 millimeters (8 inches) and was followed by a major storm, Denver, Colorado, Naples, Italy, and Vargas, Venezuela. In time scales spanning thousands of years

Eaton, L. Scott

12

Uranium-series comminution ages of continental sediments: Case study of a Pleistocene alluvial fan  

SciTech Connect

Obtaining quantitative information about the timescales associated with sediment transport, storage, and deposition in continental settings is important but challenging. The uranium-series comminution age method potentially provides a universal approach for direct dating of Quaternary detrital sediments, and can also provide estimates of the sediment transport and storage timescales. (The word"comminution" means"to reduce to powder," reflecting the start of the comminution age clock as reduction of lithic parent material below a critical grain size threshold of ~;;50 mu m.) To test the comminution age method as a means to date continental sediments, we applied the method to drill-core samples of the glacially-derived Kings River Fan alluvial deposits in central California. Sediments from the 45 m core have independently-estimated depositional ages of up to ~;;800 ka, based on paleomagnetism and correlations to nearby dated sediments. We characterized sequentially-leached core samples (both bulk sediment and grain size separates) for U, Nd, and Sr isotopes, grain size, surface texture, and mineralogy. In accordance with the comminution age model, where 234U is partially lost from small sediment grains due to alpha recoil, we found that (234U/238U) activity ratios generally decrease with age, depth, and specific surface area, with depletions of up to 9percent relative to radioactive equilibrium. The resulting calculated comminution ages are reasonable, although they do not exactly match age estimates from previous studies and also depend on assumptions about 234U loss rates. The results indicate that the method may be a significant addition to the sparse set of available tools for dating detrital continental sediments, following further refinement. Improving the accuracy of the method requires more advanced models or measurements for both the recoil loss factor fa and weathering effects. We discuss several independent methods for obtaining fa on individual samples that may be useful for future studies.

Lee, Victoria E.; DePaolo, Donald J.; Christensen, John N.

2010-04-30T23:59:59.000Z

13

Soils developed from alluvial and proluvial deposits in the Gröndalselva River valley in West Spitsbergen  

Science Journals Connector (OSTI)

The genetic characterization of soils developed from alluvial and proluvial deposits in the Gröndalselva River valley (West Spitsbergen) is presented. These soils are ... texture of the soils in the Gröndalselva ...

V. N. Pereverzev; T. I. Litvinova

2012-05-01T23:59:59.000Z

14

Fan deltas and braid deltas: conceptual problems  

SciTech Connect

The concept of fan deltas has been widely misinterpreted in the geologic literature. A true fan delta is defined as an alluvial fan deposited into a standing body of water. Such sequences are of limited areal extent and are, as expected, uncommon in the rock record. By contrast, braid deltas (herein defined), formed by progradation of a braided fluvial system into a standing body of water, are a common geomorphic feature in many modern settings, and their deposits are common in the geologic record. Braid-delta sequences are often identified as fan deltas, on the false premise that coarse-grained deposits in a deltaic setting are always part of an alluvial fan complex. The authors find that most published examples of so called fan deltas contain no direct evidence for the presence of an alluvial fan. Even in examples where an alluvial fan could be documented, the authors found that, in many cases, the alluvial fan complex was far removed from the shoreline, separated by an extensive braid plain. The authors suggest that such systems are better classified as braid deltas. They consider that it is essential to distinguish the environmental setting of true fan deltas from that of braid deltas. Misclassification will lead to incorrect interpretations of expected facies, sandstone geometry, reservoir quality, and tectonic settings. Criteria based on geometry, vertical and lateral lithofacies associations, and paleocurrent patterns should be used to correctly identify and distinguish these depositional systems.

McPherson, J.G.; Shanmugam, G.; Moiola, R.J.

1986-05-01T23:59:59.000Z

15

E-Print Network 3.0 - au-cu skarn deposits Sample Search Results  

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

River channel. Consists... young alluvial-fan deposits (late Holocene)--Chiefly unconsolidated ... Source: Lee, Cin-Ty Aeolus - Department of Earth Science, Rice University...

16

E-Print Network 3.0 - alluvial basin-fill deposits Sample Search...  

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

TERRACESNew Mexico Geological Society Guidebook, 60th Field Conference, Geology of the Chupadera Mesa Region, 2009, p. 415-424. Summary: -Pleistocene terrace deposits, and...

17

Submarine fan lobes  

SciTech Connect

Submarine fan lobes constitute major hydrocarbon reservoirs throughout the world. Therefore, a clear understanding of their geometry and facies relationships is critical for exploring and exploiting these sandstone bodies effectively. However, a multitude of submarine fan lobe terminologies (e.g., depositional lobe, suprafan lobe, fan lobe, erosional lobe, channelized lobe, ponded lobe, leveed-valley lobe, type I lobe, and type II lobe) advocating widely different meanings, has flourished in the sedimentologic literature. A critical evaluation of this problem has resulted in the following suggestions: (1) lobes are considered to be turbidite sand bodies that develop at the mouths of channels in deep-sea fan environments; (2) the term depositional lobe should be restricted to lower-fan deposits of fans that exhibit facies C and thickening-upward cycles; (3) the term suprafan lobe refers to middle-fan deposits of certain small, sand-rich, modern fans that exhibit a convex-upward depositional bulge in seismic reflection profiles; (4) the terms fan lobe, erosional lobe, channelized lobe, ponded lobe, and leveed-valley lobe do not represent true channel-mouth deposits and therefore are potentially confusing; (5) lower-fan sheet sands of large modern fans may not be equivalent to depositional lobes of ancient fans; and (6) popular fan models with lobes are not always applicable because they disregard large modern fans without lobes (e.g., Mississippi fan).

Shanmugam, G.

1989-03-01T23:59:59.000Z

18

E-Print Network 3.0 - alluvial basin numerical Sample Search...  

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

in Great Britain. Palaeocurrents and provenance of the Mae Rim Formation, Northern Thailand Summary: as alluvial fans along the basin's edge. The main goals for this study...

19

E-Print Network 3.0 - alluvial basins in-depth Sample Search...  

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

in Great Britain. Palaeocurrents and provenance of the Mae Rim Formation, Northern Thailand Summary: as alluvial fans along the basin's edge. The main goals for this study...

20

Reservoir Characterization, Production Characteristics, and Research Needs for Fluvial/Alluvial Reservoirs in the United States  

SciTech Connect

The Department of Energy's (DOE's) Oil Recovery Field Demonstration Program was initiated in 1992 to maximize the economically and environmentally sound recovery of oil from known domestic reservoirs and to preserve access to this resource. Cost-shared field demonstration projects are being initiated in geology defined reservoir classes which have been prioritized by their potential for incremental recovery and their risk of abandonment. This document defines the characteristics of the fifth geological reservoir class in the series, fluvial/alluvial reservoirs. The reservoirs of Class 5 include deposits of alluvial fans, braided streams, and meandering streams. Deposit morphologies vary as a complex function of climate and tectonics and are characterized by a high degree of heterogeneity to fluid flow as a result of extreme variations in water energy as the deposits formed.

Cole, E.L.; Fowler, M.L.; Jackson, S.R.; Madden, M.P.; Raw-Schatzinger, V.; Salamy, S.P.; Sarathi, P.; Young, M.A.

1999-04-28T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Delgada Fan, Pacific Ocean  

Science Journals Connector (OSTI)

The Delgada Fan, an irregularly shaped turbidite deposit extending more than 350 km offshore from northern California, consists of two large leveed-valley units each fed by a separate complex of coalescing sub...

William R. Normark; Christina E. Gutmacher

1985-01-01T23:59:59.000Z

22

Comparison of modern Mississippi fan with selected ancient fans  

SciTech Connect

A comparison of the modern passive-margin Mississippi fan (DSDP Leg 96) with selected ancient active-margin fans reveals major differences in turbidite facies associations and seismic characteristics of the lower fan area. The lower Mississippi fan is composed of channel (facies B and F) and nonchannel sequences (facies C. and D), whereas lower fan areas of ancient active-margin fans are characterized by nonchannelized, thickening-upward depositional lobes (facies C and D) with sheetlike geometry. An absence of depositional lobes in the lower Mississippi fan is also suggested by a lack of mounded seismic reflections. Continuous and parallel seismic reflections of the lower Mississippi fan may represent sheet sands, but not those of true depositional lobes. In mature passive-margin fans, long, sinuous channels develop as a consequence of low gradients and the transport of sediment with a relatively low sand/mud ratio, and these channels develop lenticular sand bodies. In contrast, channels in active-margin fans are short and commonly braided as a result of high gradients and the transport of sediment with a relatively high sand/mud ratio. Braided channels characteristically develop sheetlike sand bodies.

Shanmugam, G.; Moiola, R.J.; McPherson, J.G.; O'Connell, S.

1988-09-01T23:59:59.000Z

23

Fan Dai  

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

Fan Dai Fan Dai China Energy Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 90R2002 Berkeley CA 94720 Office Location: 90-2117S (510) 486-4000 FDai@lbl.gov Fan Dai is a Ph.D. Candidate in Environmental Policy at the College of Environmental Science and Forestry, State University of New York, and a LL.M. Candidate at Berkeley School of Law, University of California. Fan's research during her stay in LBNL's China Energy Group focuses on Energy Efficiency Governance, U.S.-China Clean Energy Partnership, the Carbon Cap-and-Trade Program in California and what China can learn from California's program. Prior to LBNL, she interned at the China National Center for Climate Change Strategy and International Cooperation (NCSC), China Youth Action Climate Network (CYCAN), and China State Forestry

24

Fan-deltas and braid deltas: Varieties of coarse-grained deltas: Discussion and reply  

Science Journals Connector (OSTI)

...longitudinal profile analysis (Fig. 5, McPherson and others, 1987) to make the point that we were not considering only dry-type alluvial fans. Many other examples of wet-type fans exist in the literature (for example, Kochel and Johnson, 1984...

L. A. DUNNE; JOHN G. McPHERSON; GANAPATHY SHANMUGAM; RICHARD J. MOIOLA

25

Red Fork sandstone of Oklahoma: depositional history and reservoir distribution  

SciTech Connect

The Middle Pennsylvanian Red Fork sandstone formed as a result of progradation across eastern Kansas and most of Oklahoma. The Red Fork is one of several transgressive-regressive sequences (cyclothems) developed within the Desmoinesian Cherokee Group. Sea level changes, together with varying subsidence, were dominant factors controlling the general stratigraphic (correlative) characteristics of the Red Fork interval. Progradation was episodic, with sand deposition in the more active part of the basin during lower sea level stands and valley-fill deposition in the more stable areas during sea level rises. A map of Red Fork sand trends reveals an alluvial-deltaic complex covering most of Oklahoma. The Red Fork consists primarily of alluvial-valley and plain (fluvial) bodies in the northernmost part of northeastern Oklahoma, alluvial-deltaic bodies in most of the remaining parts of the shelf area, and off-shelf submarine-fan and slope basinal-floor complexes within the deeper part of the Anadarko basin. Determination of reservoir trend and genesis requires integration of rock and log data. Logs need to be calibrated to cores in order to estimate depositional environments accurately and to make a reasonable assessment of diagenetic overprints. Much of the oil and gas has been trapped in stratigraphic traps, and a significant amount of oil is in channel sandstones with trends at high angles to the structural grain. In some areas, secondary clay, in particular chloritic clay, has resulted in microporosity, high water saturation, and correspondingly low resistivities in oil reserves.

Shelton, J.W.; Fritz, R.D.; Johnson, C.

1989-03-01T23:59:59.000Z

26

Depositional framework and reservoir distribution of Red Fork sandstone in Oklahoma  

SciTech Connect

The Middle Pennsylvanian Red Fork sandstone formed as a result of southward progradation across most of Oklahoma. The Red Fork is one of several cyclothemic (transgressive-regressive) sequences developed within the Desmoinesian Cherokee Group. Sea level changes and stability of the depositional area were dominant factors in determining the general stratigraphic characteristics of the Red Fork interval. Progradation was episodic, with sand deposition in the distal, more subsident part of the basin during lower sea level stands, and valley-fill deposition in the more stable areas during sea level rises. Red Fork sandstone trends depict an alluvial-deltaic complex covering most of Oklahoma. The Red Fork consists primarily of alluvial-valley and plain (fluvial) bodies in the northern part of northeastern Oklahoma, alluvial-deltaic bodies in most of the remaining parts of the shelf area, and off-shelf submarine-fan and slope/basin-floor complexes within the deeper part of the Anadarko basin. Determination of reservoir trend and genesis requires integration of rock data and log data, with logs calibrated to cores for estimating depositional environments and assessing diagenetic overprints. Much of the oil and gas has been trapped in stratigraphic traps, some of which represent channelized sandstones with trends at high angles to the structural grain. Secondary chlorite, in particular, is associated locally with development of productive reservoirs showing microporosity, high water saturation, and correspondingly low resistivities.

Shelton, J.W.; Fritz, R.D.; Johnson, C. (Masera Corp., Tulsa, OK (USA))

1989-08-01T23:59:59.000Z

27

Seismic mapping of alluvial fans and sub-fan bedrock in Big Bend National Park, Texas  

E-Print Network (OSTI)

Layered Models Anomalous Time-Distance Plots Error Analysis Geologic Interpretations of Results CONCLUSIONS RECOMMENDATIONS REFERENCES ~ APPENDIX VITA 7 8 10 11 16 16 18 23 29 32 32 45 47 50 52 LIST OF FIGURES Figure Page 1 Ground...-water resource investigation study area Big Bend National Park, Texas 2 Location of seismic surveys within the Big Bend study area 3 Comparison of seismic surveys to driller's logs 12 4 Hypothetical three-layer case with dipping layers 20 5 Representative...

Monti, Joseph

1984-01-01T23:59:59.000Z

28

Fan Systems | Department of Energy  

Office of Environmental Management (EM)

to save energy in fan systems. Fan Tools Tools to Assess Your Energy System Fan System Assessment Tool (FSAT) Qualified Specialists Qualified Specialists have passed a rigorous...

29

Submarine-fan sedimentation, Ouachita Mountains, Arkansas and Oklahoma  

SciTech Connect

More than 10,000 m (32,808 ft) of interbedded sandstones and shales comprise the Upper Mississippian and Lower Pennsylvanian flysch succession (Stanley, Jackfork, Johns Valley, Atoka) in the Ouachita Mountains of Arkansas and Oklahoma. Deposited primarily by turbidity current and hemipelagic processes in bathyal and abyssal water depths, these strata formed major submarine-fan complexes that prograded in a westward direction along the axis of an elongate remnant ocean basin that was associated with the collision and suturing of the North American and African-South American plates. A longitudinal fan system is visualized as the depositional framework for these strata, which were deposited in a setting analogous to the modern Bengal fan of the Indian Ocean. Facies analysis of the Jackfork formation indicates that inner fan deposits are present in the vicinity of Little Rock, Arkansas; middle fan channel and interchannel deposits occur at DeGray Dam and Friendship, Arkansas; and outer fan depositional-lobe deposits are present in southeastern Oklahoma. Boulder-bearing units (olistostromes), many with exotic clasts, were shed laterally into the Ouachita basin. They occur throughout the flysch succession and in all fan environments (i.e., inner, middle, and outer). This relationship may serve as a useful criterion for recognizing analogous longitudinal fan systems in the rock record.

Moiola, R.J.; Shanmugam, G.

1984-09-01T23:59:59.000Z

30

Morphology and seismic stratigraphy of the Toyama deep sea fan  

E-Print Network (OSTI)

. C. Hilde The Toyama Deep Sea Fan, a contemporary depositional feature located in the Japan Sea, is a canyon-fed elongate fan system with pronounced lobes in both the Yamato and Japan Basins. The Toyama Fan is the eighth largest modern fan system... with a surface area greater than 108, 000 square kilometers. Deposits of this Quaternary turbidite system range in thickness from less than 150 m to more than 750 m. The meandering Toyama Deep Sea Channel extends northward from the central coast...

Shepherd, David Barton

2012-06-07T23:59:59.000Z

31

Fan System Assessment Tool  

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

The Fan System Assessment Tool (FSAT) is a free online software tool that helps industrial users quantify energy use and savings opportunities in industrial fan systems. Use FSAT to understand how well your fan systems are operating, determine the economic benefit of system modifications, and establish which options are most economically viable when multiple opportunities exist for system modification.

32

Uranium in Framboidal Pyrite from a Naturally Bioreduced Alluvial...  

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

in Framboidal Pyrite from a Naturally Bioreduced Alluvial Sediment . Uranium in Framboidal Pyrite from a Naturally Bioreduced Alluvial Sediment . Abstract: Samples of a naturally...

33

High-amplitude reflection packets (HARPs) of the Mississippi Fan, Gulf of Mexico  

E-Print Network (OSTI)

sediment volumes. Mississippi Fan HARP deposition can be described by three depositional models: the "avulsion" model, the "fill and spill" model, and the "transition" model. The "avulsion" depositional model, developed by Flood et al. (1991), describes...

Francis, Jason Michael

2012-06-07T23:59:59.000Z

34

Evaluation of the cooling fan efficiency index.  

E-Print Network (OSTI)

for Figure 3. Fan power versus cooling fan the computer fanparameters (cooling effect, fan power and CFE) involved inthat the typical power consumption of cooling fans is lower

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

35

Fan Energy Savings Decisions  

E-Print Network (OSTI)

Axial fans are used for thousands of industrial applications consuming millions of kilowatts daily. The decision that saves dollars is to either automatically change fan speed or change blade pitch to save up to 50 percent of consumed power over a...

Monroe, R. C.

36

Ceiling Fan | Open Energy Information  

Open Energy Info (EERE)

TODO: Add description List of Ceiling Fan Incentives Retrieved from "http:en.openei.orgwindex.php?titleCeilingFan&oldid267151" Category: Articles with outstanding TODO tasks...

37

Introduction of a Cooling Fan Efficiency Index  

E-Print Network (OSTI)

Cooling Effect, Fan Power, and Cooling-Fan Efficiency Index?t eq ) °C °F Fan Power, W (P f ) Cooling-Fan Efficiency (The measured cooling effect and fan power and the determined

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

38

Training: Fan Systems | Department of Energy  

Office of Environmental Management (EM)

in your plant. Fan System Assessment - 1-day workshop Availability: Onsite instructor-led and online Optimizing industrial fan systems can take on many forms, but any fan...

39

Noise from Centrifugal Fans  

Science Journals Connector (OSTI)

The sound power radiated from the discharge of centrifugal fans of diameters between 3 and 6 1 2 ? inches has been measured as a function of fan dimensions and operating conditions. The measurements were made by arranging the fan under test to discharge into an 11 foot nonreflecting tube in which the static pressure could be controlled. Air was exhausted from the tube through a side port of high acoustic impedance located part way down the tube. The detectingmicrophone which is located in the tube between the exit port and the acoustic termination is out of the air stream and therefore not subject to wind noise. The total discharge noise power P in watts in the range 75 to 10 000 cps was found empirically to be given by P?=?0.90?×?10 ?4 (D/W)?H 3 ?+?5.2?×?10 ?10 (Q 5 /W 4 D 8 ) where D and W are the fan diameter and width respectively in inches H is the static pressure in inches of water and Q is the air flow in cubic feet per minute. The angular frequency of the fan wheel does not appear explicitly since this quantity is uniquely specified by H Q D and W. Spectral analysis indicates that the power is concentrated primarily at low frequencies. Application of the results of this study to design problems will be discussed.

R. B. Goldman; G. C. Maling

1955-01-01T23:59:59.000Z

40

Record of Communication Concerning Ceiling Fan and Ceiling Fan...  

Energy Savers (EERE)

of communications made to DOE staff on the subject of possible changes to standards and test procedures for ceiling fans and ceiling fan light kits. Memo on August 20 ALA DOE...

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Fans for Cooling | Department of Energy  

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

Fans for Cooling Fans for Cooling Fans for Cooling May 30, 2012 - 7:46pm Addthis Ceiling fans circulate air in a room to help keep occupants cool. | Photo courtesy of ©iStockphoto/jimkruger Ceiling fans circulate air in a room to help keep occupants cool. | Photo courtesy of ©iStockphoto/jimkruger What does this mean for me? You may be able to keep your home cool with energy-efficient and well-placed fans. Fans are less expensive to operate than air conditioners. Circulating fans include ceiling fans, table fans, floor fans, and fans mounted to poles or walls. These fans create a wind chill effect that will make you more comfortable in your home, even if it's also cooled by natural ventilation or air conditioning. Ceiling Fans Ceiling fans are considered the most effective of these types of fans,

42

Fan System Assessment Tool Introduction  

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

This presentation provides an introduction to the Fan System Assessment Tool (FSAT). With FSAT, users can calculate the amount of energy used by their fan system; determine system efficiency; and quantify the savings potential of an upgraded system.

43

Pt-Fe nuggets from alluvial deposits in eastern Madagascar  

Science Journals Connector (OSTI)

...undergonesubstantialsecondaryevolution, suchasthroughdissolutionor abrasion. TABLB 7. SELECTED ELE TRON.MICROPROBE DATA OF d.ASS INS-USIONS INIS|OFERROI{-AIINUMNUCCETS Similarly,thecompositionof thenuggetsis compat-ible with a primaryhigh-temperatureorigin...

Thierry Auge; Olivier Legendre

44

alluvial deposits erzurum: Topics by E-print Network  

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

HVAC Heat Exchangers Energy Storage, Conversion and Utilization Websites Summary: that cooling coils are an important sink for biological aerosols and consequently a potential...

45

A hydrogeological evaluation of alluvial fans in northern Big Bend National Park, Texas, using geophysical methods  

E-Print Network (OSTI)

OF THE SEISMIC AND RESISTIVITY DATA INTERPRETATIONS CONCLUSIONS REFERENCES. APPENDIX. VITA. Page viii ix 9 11 11 15 16 17 17 19 24 28 35 40 46 46 48 52 52 54 55 59 92 97 100 104 106 LIST OF TABLES Table Page True seism1c... Representative four-layer case from the Big Bend Park study area 33 Frequency distribution of seismic velocities. . 34 10 Anomalous time-distance plots from the Bio Bend Park study area 37 Comparison of results from seismic sounding to driller's logs from...

Archer, Jerry Alan

1982-01-01T23:59:59.000Z

46

Uranium-series comminution ages of continental sediments: Case study of a Pleistocene alluvial fan  

E-Print Network (OSTI)

B.R. , 1998. Exchanges of sediment between the flood plainthe terrestrial flux of sediment to the global ocean: aplanetary perspective. Sediment. Geol. 162 (1-2), 5-24.

Lee, Victoria E.

2010-01-01T23:59:59.000Z

47

Uranium-series comminution ages of continental sediments: Case study of a Pleistocene alluvial fan  

E-Print Network (OSTI)

California Press, pp. 39-50. Marchand, D.E. , Allwardt, A. ,et Cosmochimica Acta, v. 70, Marchand, D.E. , 1977. Theof capping soils (Marchand, 1977; Huntington, 1980; Marchand

Lee, Victoria E.

2010-01-01T23:59:59.000Z

48

The Role of Climatic Change in Alluvial Fan Development Ronald I. Dorn  

E-Print Network (OSTI)

, 2003), humid mid-latitude (Bettis, 2003; Mills, 2005), Mediterranean (Ro- bustelli et al., 2005 with tectonic and base-level fluctuations (Roberts, 1995; Bettis, 2003; Harvey et al., 2005). The next section

Dorn, Ron

49

Introduction of a Cooling Fan Efficiency Index  

E-Print Network (OSTI)

F Fan Power, W (P f ) Cooling-Fan Efficiency (CFE) °C/W °F/WSun et al. 2007). Thus, the CFE is defined by Equation 1.?t eq CFE = Cooling effect = ( – 1 ) --------- P f Fan power

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

50

Evaluation of the cooling fan efficiency index.  

E-Print Network (OSTI)

named Cooling Fan Efficiency (CFE) that is the ratio betweenthe Cooling Fan Efficiency (CFE) is defined by Equation 1. ?t CFE ? ( ? 1 ) eq P f where P f is fan power, i.e the input

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

51

E-Print Network 3.0 - alluvial plains Sample Search Results  

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

positions create alluvial ridges along the flood plain... channels that flowed across a broad alluvial plain, similar to the modern As- siniboine River (Fig. 4... avulsion...

52

E-Print Network 3.0 - alluvial atlantic rain Sample Search Results  

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

types of lowland tropical rain forest: alluvial, sandstone hill... , and kerangas (heath) forest. Alluvial soils are more nutrient rich and have higher soil moisture than...

53

THE WORLD'S Biggest Fan Collection  

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

WORLD'S Biggest Fan Collection WORLD'S Biggest Fan Collection If you only know the Big Ass Fan Company as the preeminent designer and manufacturer of high volume, low speed fans for factories and cows, it's time you get to know us better. While we continue to lead the way in industrial and agricultural air movement, we've also refined these designs to bring the same innovation and benefits of our famous fans to circulate an ocean of air in sound-sensitive commercial spaces and homes. And when our customers said they wanted something for smaller spaces, we listened - and we think you'll like the results. We've got you covered - ceiling to floor, wall to door! Features ï‚ž New patented airfoil system uses 10 Powerfoil airfoils, winglets and patent-pending AirFence(tm) technology to increase

54

Alluvial Groundwater -- Upgradient -- 92-05&  

Office of Legacy Management (LM)

09 09 This page intentionally left blank Alluvial Groundwater -- Upgradient -- 92-05 a,b ______________________________________________________________ Analyte Unit 10/30/00 04/11/01 07/20/01 10/10/01 ______________________________________________________________ Field Measurements Alkalinity mg/L -- 270 321 303 Conductivity c μmhos/cm 1520 1250 1366 1350 DO c mg/L -- 7.7 -- -- ORP c mV 84 71 -- 38 pH c s.u. 7.05 7.66 6.42 6.99 Temperature c C 9.4 7.7 9.7 10 Turbidity c NTU 42.6 4.05 60.3 70.5 Common Ions Ca mg/L 266 214 206 207

55

Save Energy with Axial Fans  

E-Print Network (OSTI)

= Trdh = CFM AAPP. A APPROACH V A~PROACH VAPP. < .5VFAN APPROACH VELOCITY FIG .? A 14 ft. fan, whose design flow as ,J,OOO CFr?1 in a ring 5 feet from grade would have an Area Approach of 220 ft 2 and a'V approach of 1137 FPM. The velocity... through the fan itself would be rOlfjhly: 250,000 or 1624 FPM .785 (14)2 As a rule of thumb, the approach velocity should not exceed 50% of the velocity through the fan. The high approach would cause additional velocity pres sure losses that were...

Monroe, R. C.

1981-01-01T23:59:59.000Z

56

Fan System Assessment Tool Fact Sheet | Department of Energy  

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

Fact Sheet Fan System Assessment Tool Fact Sheet Fact sheet describing how industrial plants can improve their fan system performance using AMO's Fan System Assessment Tool (FSAT)....

57

Submarine fan lobe models: Implications for reservoir properties  

SciTech Connect

A multitude of submarine fan lobe models, advocating widely different reservoir properties, has been introduced into the sedimentologic literature. Four of these models are compared to show their differences in reservoir properties. Braided suprafan lobes are characterized by stacked sand bodies with good lateral and vertical communication, and they constitute excellent reservoir facies. The unchanneled depositional lobes, composed of sheetlike sand bodies with good lateral and moderate vertical communication, exhibit properties of good reservoir facies. Fanlobes, which refer to meandering channels and associated levee facies of large mud-rich submarine fans such as the Mississippi Fan in the Gulf of Mexico, are characterized by offset stacked sand bodies with poor lateral and vertical communication. These lenticular sands have the potential to be moderately good reservoir facies. Ponded lobes, which represent mud-rich slump facies of slope environments, comprise poor reservoir facies because of poor sand content and poor sand-body connectivity caused by chaotic bedding. Furthermore, the presence of slumped mud layers in ponded lobes is expected to hinder fluid flow. Because different lobe models vary significantly from one another in terms of reservoir properties, caution must be exercised to apply the proper lobe model to ancient fan sequences in hydrocarbon exploration and production.

Shanmugam, G.; Moiola, R.J. (Mobil Research and Development Corp., Dallas, TX (USA))

1990-09-01T23:59:59.000Z

58

Xudong Fan Curriculum Vitae Curriculum Vitae  

E-Print Network (OSTI)

Xudong Fan Curriculum Vitae 1 Curriculum Vitae (Last updated: October 28, 2009) Xudong (Sherman Research Assistant and Teaching Assistant, #12;Xudong Fan Curriculum Vitae 2 Physics Department and Oregon in Opto-fluidic Ring Resonators for #12;Xudong Fan Curriculum Vitae 3 Ultrasensitive Biomolecule Detection

Fan, Xudong "Sherman"

59

Improving the efficiency of centrifugal fans  

E-Print Network (OSTI)

was made of the design ch;. r- acteristics of this type of fan. In this study, several modifications to existing fans were evaluated. One modification wa concerned with the substitution of airfoil shaped blades f' or the original ones. Another medi... IV DISCUSSION OF RESULTS 0 ~ 1 Evaluation of Unmodified Fan Design 0. 2 11odification of the Cutoff Piece 4. 3 Re-evaluation of the Partial Admission Plate 4 . 4 Inlet Modification 4 . 5 Blade Shape Modifications 4. 6 Final Combined...

Wolfe, Clifford Kent

1976-01-01T23:59:59.000Z

60

Healthcare Energy: Spotlight on Fans and Pumps  

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

The Building Technologies Office conducted a healthcare energy end-use monitoring project for two sites. Read details about the fan and pump energy results.

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Types of submarine fan lobes: Models and implications  

SciTech Connect

Different lobe models imply significantly different reservoir geometries; thus, one must apply the proper lobe model to ancient fan sequences. Braided suprafan lobes are characterized by stacked channel sand bodies with good lateral and vertical communication, and they constitute excellent reservoir facies. Depositional lobes, composed of sheet-like sand bodies with good lateral and moderate vertical communication, exhibit properties of good reservoir facies. Fanlobes, which refer to meandering channels and associated levee facies of large mud-rich submarine fans such as the Mississippi fan, are characterized by offset stacked sand bodies with poor lateral and vertical communication .These lenticular sands have the potential to be moderately good reservoir facies. Ponded lobes, which represent mud-rich slump facies of slope environments, comprise poor reservoir facies because of low sand content and poor sand-body connectivity. Furthermore, the presence of contorted mud layers in ponded lobes is expected to hinder fluid flow. External mounded reflections in seismic profiles often are interpreted as lobes; however, there are no definite seismic criteria to delineate mud-rich lobes from sand-rich lobes.

Shanmugam, G.; Moiola, R.J. (Mobil Research and Development Corp., Dallas, TX (United States))

1991-01-01T23:59:59.000Z

62

The Effects of Flash Floods on Gully Erosion and Alluvial Fan Accumulation in the K?szeg Mountains  

Science Journals Connector (OSTI)

Renewed incision began during the intensive rainfalls in 2010, and secondary internal channels developed on the older channel floors, producing complex channels (Fig. 19.7). Large boulders protec...

Márton Veress; István Németh…

2013-01-01T23:59:59.000Z

63

STATE OF CALIFORNIA FAN POWER CONSUMPTION  

E-Print Network (OSTI)

STATE OF CALIFORNIA FAN POWER CONSUMPTION CEC-MECH-4C (Revised 08/09) CALIFORNIA ENERGY COMMISSION FAN POWER CONSUMPTION MECH-4C PROJECT NAME: DATE: NOTE: Provide one copy of this worksheet for each Systems or Variable Air Volume (VAV) Systems when using the Prescriptive Approach. See Power Consumption

64

Development of a High Efficiency Ceiling Fan  

E-Print Network (OSTI)

The potential of ceiling fans to improve comfort during the cooling season is well documented (Rohles et al.. 1983; Fairey et al.. 1986). There are at least two cases: In the first where air conditioning is unavailable, adding ceiling fans may...

Parker, D. S.; Callahan, M. P.; Sonne, J. K.; Su, G. H.; Hibbs, B. D.

2000-01-01T23:59:59.000Z

65

Supply fan energy use in pressurized underfloor air distribution systems  

E-Print Network (OSTI)

air-water devices like fan coil units and water source heatsuch as VAV boxes and fan coil units. One fairly typical

Webster, Tom P.E.; Bauman, Fred P.E.; Ring, Erik P.E.

2000-01-01T23:59:59.000Z

66

Shanghai Fan Qie Trading Ltd | Open Energy Information  

Open Energy Info (EERE)

Shanghai Fan Qie Trading Ltd Place: Shanghai Municipality, China Sector: Solar Product: Solar panel wholesaler and system integrator. References: Shanghai Fan Qie Trading Ltd1...

67

Fan-fold shielded electrical leads  

DOE Patents (OSTI)

Disclosed are fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figs.

Rohatgi, R.R.; Cowan, T.E.

1996-06-11T23:59:59.000Z

68

Fan System Assessment - End User Training | Department of Energy  

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

Fan System Assessment - End User Training Fan System Assessment - End User Training Fan System Assessment - End User Training December 18, 2013 7:30AM to 4:30PM EST Boise, Idaho Optimizing industrial fan systems can take on many forms, but any fan optimization project must meet the needs of the process. This self-paced workshop highlights the benefits of fan system optimization and examines fan system performance characteristics and practical issues concerning measurement data. The session introduces the FSAT software. This powerful analysis software helps you quantify the potential benefits of configuring fan systems for optimal performance, calculate the amount of energy use by your fan system, and estimate fan system efficiency. Learn how the software works, what data is required for FSAT, and how to interpret assessment

69

Cooling with a Whole House Fan | Department of Energy  

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

Cooling with a Whole House Fan Cooling with a Whole House Fan Cooling with a Whole House Fan May 30, 2012 - 6:54pm Addthis Whole house fan installed as part of a home retrofit project in California. | Photo courtesy of Lieko Earle, NREL. Whole house fan installed as part of a home retrofit project in California. | Photo courtesy of Lieko Earle, NREL. What does this mean for me? A whole-house fan may be sufficient to cool your house, at least for part of the year. In many climates, a whole-house fan can save you money and maintain comfort during the cooling season. How does it work? A whole-house fan works by pulling air in through windows and exhausting it through the attic and roof. Whole house cooling using a whole house fan can substitute for an air conditioner most of the year in most climates. Whole house fans combined

70

Synchronous and Cogged Fan Belt Performance Assessment  

SciTech Connect

The GSA Regional GPG Team commissioned the National Renewable Energy Laboratory (NREL) to perform monitoring of cogged V-belts and synchronous belts on both a constant volume and a variable air volume fan at the Byron G. Rodgers Federal Building and U.S. Courthouse in Denver, Colorado. These motor/fan combinations were tested with their original, standard V-belts (appropriately tensioned by an operation and maintenance professional) to obtain a baseline for standard operation. They were then switched to the cogged V-belts, and finally to synchronous belts. The power consumption by the motor was normalized for both fan speed and air density changes. This was necessary to ensure that the power readings were not influenced by a change in rotational fan speed or by the power required to push denser air. Finally, energy savings and operation and maintenance savings were compiled into an economic life-cycle cost analysis of the different belt options.

Cutler, D.; Dean, J.; Acosta, J.

2014-02-01T23:59:59.000Z

71

Performance Assessment of Photovoltaic Attic Ventilator Fans  

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

A case study of photovoltaic attic ventilator fans was conducted on an occupied single family home in Central Florida. Two fans were installed at mid-summer in an instrumented home where attic air temperature, meteorological conditions and space cooling electric power were measured. The home already had an attic radiant barrier, but still experienced attic air temperatures in excess of 130oF.

72

Ground-Water Table and Chemical Changes in an Alluvial Aquifer During  

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

Ground-Water Table and Chemical Changes in an Alluvial Aquifer Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells More Documents & Publications Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation's Cañon City, Colorado, Uranium

73

Ground-Water Table and Chemical Changes in an Alluvial Aquifer During  

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

Ground-Water Table and Chemical Changes in an Alluvial Aquifer Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells More Documents & Publications Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation's Cañon City, Colorado, Uranium

74

Microsoft Word - Appendix A Alluvial GW Samples.doc  

Office of Legacy Management (LM)

Groundwater Samples, Groundwater Samples, January 2000 through April 2011 This page intentionally left blank Alluvial Groundwater -- Upgradient -- 92-05 a,b ______________________________________________________________ Analyte Unit 10/30/00 04/11/01 07/20/01 10/10/01 ______________________________________________________________ Field Measurements Alkalinity mg/L -- 270 321 303 Conductivity c μmhos/cm 1520 1250 1366 1350 DO c mg/L -- 7.7 -- -- ORP c mV 84 71 -- 38 pH c s.u. 7.05 7.66 6.42 6.99 Temperature c C 9.4 7.7 9.7 10 Turbidity c NTU 42.6 4.05 60.3 70.5

75

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure...  

Office of Environmental Management (EM)

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure DOE Publishes Final Rule for Residential Furnace Fan Test Procedure January 3, 2014 - 12:00am Addthis The...

76

Development of Power-head based Fan Airflow Station  

E-Print Network (OSTI)

Development of Power-head Based Fan Airflow Station Gang Wang Research associate University of Nebraska, Lincoln Mingsheng Liu Professor University of Nebraska, Lincoln Abstract Fan airflow measurement is critical for heating... under partial loads. On the other hand, in most of airflow range, the power curve varies exquisitely. Wang and Liu developed the VFD airflow station to obtain the fan airflow using the power and speed based on the power curve. Both the fan...

Wang, G.; Liu, M.

2005-01-01T23:59:59.000Z

77

Cooling Tower Energy Conservation Through Hydraulic Fan Drives  

E-Print Network (OSTI)

Fan Drive Eliminates These Problems from the Drive Train. The electric motor is at ground level; close coupled to a hydraulic pump, filters and oil reservoir. Hydraulic lines bring oil flow to the lightweight hydraulic motor mounted at the fan... Tower Fan Drives Are Many: It removes the hazard of costly fan wrecks and shaft coupling breakage. It eliminates gearbox maintenance, breakdown or replacement. The electric motor is mounted with the reservoir and pump at ground level for ease...

Dickerson, J.

78

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure  

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

The Department of Energy (DOE) has published a final rule regarding test procedures for residential furnace fans.

79

Systematic oversteepening in longitudinal profiles of mixed bedrock-alluvial channels at tributary junctions : Appalachians, Virginia  

E-Print Network (OSTI)

Certain mixed bedrock/alluvial channels located in the Valley and Ridge province of the Appalachians in Virginia were identified as having a pattern of systematic oversteepening of channel gradients at tributary junctions. ...

Windhorst, Leah M. (Leah Marie), 1981-

2004-01-01T23:59:59.000Z

80

Adjustable Speed- A Tool for Saving Energy Losses in Pumps, Fans, Fans, Blowers and Compressors  

E-Print Network (OSTI)

Petroleum and chemical plants of today are effectively cutting energy losses in their plants thermally, electrically, and mechanically in their process equipment. In rotating process equipment such as pumps, fans, compressors, and blowers, much...

Hickok, H. N.

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Engineering geologic feasibility of lignite mining in alluvial valleys by hydraulic dredging methods  

E-Print Network (OSTI)

ENGINEERING GEOLOGIC FEASIBILITY OF LIGNITE MINING IN ALLUVIAL VALLEYS BY HYDRAULIC DREDGING METHODS A Thesis by CYNTHIA LYNN CASON Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE May 1982 Niajor Subject: Geology ENGINEERING GEOLOGIC FEASIBILITY OF LIGNITE MINING IN ALLUVIAL VALLEYS BY HYDRAULIC DREDGING METHODS A Thesis by CYNTHIA LYNN CASON Approved as to style and content by: (Chairman...

Cason, Cynthia Lynn

1982-01-01T23:59:59.000Z

82

A new chronostratigraphy for a suite of Holocene alluvial deposits along Buckskin  

E-Print Network (OSTI)

and filling have oc- curred throughout the Holocene (e.g., Bailey, 1935; Hack, 1942; Haynes, 1968). Those

Pederson, Joel L.

83

List of Whole House Fans Incentives | Open Energy Information  

Open Energy Info (EERE)

Whole House Fans Incentives Whole House Fans Incentives Jump to: navigation, search The following contains the list of 26 Whole House Fans Incentives. CSV (rows 1 - 26) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Alliant Energy Interstate Power and Light (Gas and Electric) - Farm Equipment Energy Efficiency Incentives (Iowa) Utility Rebate Program Iowa Agricultural Agricultural Equipment Ceiling Fan Clothes Washers Custom/Others pending approval Dishwasher Doors Heat recovery Lighting Motor VFDs Motors Refrigerators Water Heaters Windows Whole House Fans Room Air Conditioners Ground Source Heat Pumps Yes Alliant Energy Interstate Power and Light - Farm Equipment Energy Efficiency Incentives (Minnesota) Utility Rebate Program Minnesota Agricultural Agricultural Equipment

84

List of Ceiling Fan Incentives | Open Energy Information  

Open Energy Info (EERE)

Fan Incentives Fan Incentives Jump to: navigation, search The following contains the list of 99 Ceiling Fan Incentives. CSV (rows 1 - 99) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP Ohio (Electric) - Residential Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Residential Building Insulation Ceiling Fan Central Air conditioners Custom/Others pending approval Duct/Air sealing Heat pumps Lighting Motors Programmable Thermostats Windows Yes AEP Ohio (Gas) - Residential Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Residential Building Insulation Ceiling Fan Central Air conditioners Custom/Others pending approval Dehumidifiers Duct/Air sealing Heat pumps Lighting Motors Programmable Thermostats

85

Demonstration of Intelligent Control and Fan Improvements in Computer Room  

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

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

86

NORTH HALF OF SEARCHLIGHT QUADRANGLE ROCK DESCRIPTIONS  

E-Print Network (OSTI)

be subject to intermittent flooding. Qf3 Alluvial-fan deposits (late Pleistocene) Fan-piedmont remnants composed predominantly of pebble-cobble to boulder gravel; subangular to subrounded; poorly sorted) Fan-piedmont remnants composed mainly of cobble to boulder gravel; subangular to subrounded; poorly

Tingley, Joseph V.

87

Mass and fans in attached sunspaces  

SciTech Connect

The effect of thermal storage mass on the performance of an attached sunspace is investigated for a particular design in Boston. Mass in the sunspace and in the adjoining building are compared. Performance is evaluated in terms of temperature conditions in the sunspace and delivery of useful solar heat to the adjoining building. The dependence of the results on the manner of heat delivery is studied. Both natural convection and fan-forced air flow are included.

Jones, R.W.; McFarland, R.D.; Lazarus, G.S.

1982-01-01T23:59:59.000Z

88

Origin and distribution of sand types, northeastern U.S. Atlantic continental shelf  

E-Print Network (OSTI)

). These sedimentary rocks consist largely of consolidated terrestrial red beds (mostly sandstone, siltstone, and conglomerate) originally deposited in alluvial fan, fluvial, lacustrine, and swamp environments (Klein, 1962; Schafer and Hartshorn, 1965; Weed et al...). These sedimentary rocks consist largely of consolidated terrestrial red beds (mostly sandstone, siltstone, and conglomerate) originally deposited in alluvial fan, fluvial, lacustrine, and swamp environments (Klein, 1962; Schafer and Hartshorn, 1965; Weed et al...

Leschak, Pamela

2012-06-07T23:59:59.000Z

89

DOE Publishes Request for Information for Ceiling Fans | Department...  

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

Fans Energy Conservation Standards DOE Publishes Final Rule for the Request for Exclusion of 100 Watt R20 Short Incandescent Reflector Lamps from Energy Conservation Standards...

90

Appearance Learning by Adaptive Kalman Filters for FLIR Tracking Vijay Venkataraman, Guoliang Fan, Xin Fan  

E-Print Network (OSTI)

Appearance Learning by Adaptive Kalman Filters for FLIR Tracking Vijay Venkataraman, Guoliang Fan the challenging issue of target tracking and appearance learning in Forward Looking In- frared (FLIR) sequences existing methods and experiments on the AMCOM FLIR dataset validate its effectiveness. 1. Introduction

Fan, Guoliang

91

Target Tracking with Online Feature Selection in FLIR Imagery Vijay Venkataraman, Guoliang Fan and Xin Fan  

E-Print Network (OSTI)

Target Tracking with Online Feature Selection in FLIR Imagery Vijay Venkataraman, Guoliang Fan tracking algo- rithm for FLIR imagery. A dual foreground and background model is proposed for target that the proposed algorithm can accurately track poorly-visible targets in FLIR imagery even with strong ego

Fan, Guoliang

92

Modeling of ECM Controlled Series Fan-powered VAV Terminal Units  

E-Print Network (OSTI)

Semi-empirical models for series fan-powered variable air volume terminal units (FPTUs) were developed based on models of the primary, plenum, fan airflow and the fan power consumption. The experimental setups and test procedures were developed...

Yin, Peng

2011-10-21T23:59:59.000Z

93

Choosing the right boiler air fans at Weston 4  

SciTech Connect

When it came to choosing the three 'big' boiler air fans - forced draft, induced draft and primary air, the decision revolved around efficiency. The decision making process for fan selection for the Western 4 supercritical coal-fired plant is described in this article. 3 photos.

Spring, N.

2009-04-15T23:59:59.000Z

94

Improving Fan System Performance: A Sourcebook for Industry  

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

This sourcebook is designed to provide fan system users with a reference outlining opportunities to improve system performance. It is not intended to be a comprehensive technical text on improving fan systems, but rather a document that makes users aware of potential performance improvements, provides some practical guidelines, and details where the user can find more help.

95

Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers  

E-Print Network (OSTI)

ECM motor, plug fan, variable frequency drive i ii TABLE OFcontrol system and variable frequency drives can be added toby adding variable frequency drives (VFDs) to fans with

Coles, Henry

2014-01-01T23:59:59.000Z

96

Investigating the stratigraphy of an alluvial aquifer using crosswell seismic traveltime tomography  

E-Print Network (OSTI)

can be used in situations where surface seismic reflection has failed e.g., Liberty et al., 1999Investigating the stratigraphy of an alluvial aquifer using crosswell seismic traveltime tomography In this study, we investigate the use of crosswell P-wave seismic tomography to obtain spatially extensive

Barrash, Warren

97

Sedimentology and depositional environments of part of the Walden Creek Group, central east Tennessee  

SciTech Connect

Recent questions concerning the age of the Walden Creek Group (WCG), Ocoee Supergroup have increased interest in the depositional history of these rocks. This study focuses on the sedimentology and local stratigraphy of rocks in exposures of the lithologically diverse late Precambrian and/or lower Paleozoic WCG occurring within the Kinzel Springs and Wear Cove quadrangles. Units exposed in the structurally complex Alleghenian thrust setting include the Licklog, Shields, and Wilhite formations. These rocks are divided into twelve lithofacies composed of shale, siltstone, sandstone, conglomerate and carbonate rock. The lithofacies are grouped into seven facies associations indicating deposition below storm wave base in a deep-water, probably marine, environment. Within the study area, rocks of the Wilhite Formation represent deposition in basin plain, lower slope, slope, base of slope, and sandy channel environments. Rocks of the Shields Formation are coarse channel and related overbank deposits of the inner to middle parts of a deep water fan environment. The Licklog Formation contains rocks deposited as lobe and outer-fan or fan-fringe deposits in a middle- to lower-fan environment. These formations can be placed within a single depositional system composed of a submarine slope transitional with a basin plain, and of proximal channels and distal lobes in a sand-rich submarine fan system. Inferred depositional components (associations) compare well with general models of deep-water deposits associated with high gradient fan-delta-fed margins. The basin was bounded by an uplifted, most likely block faulted, margin composed of crystalline basement located to the northwest. Local sedimentologic and stratigraphic relationships suggest an overall progradational sequence during the deposition of these rocks.

Lewis, R.F. III (Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Geology and Geophysics); Miller, J.M.G. (Vanderbilt Univ., Nashville, TN (United States). Dept. of Geology)

1993-03-01T23:59:59.000Z

98

Submitting Organization Hongyou Fan Sandia National Laboratories  

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

 2007 R&D 100 Award Entry Form  Submitting Organization Hongyou Fan Sandia National Laboratories Advanced Materials Laboratory 1001 University Boulevard SE Albuquerque, NM 87106, USA 505-272-7128 (phone) 505-272-7336 (fax) hfan@sandia.gov AFFIRMATION: I affirm that all information submitted as a part of, or supplemental to, this entry is a fair and accurate represen- tation of this product. Submitter's signature_______________________________ Earl Stromberg Lockheed Martin Aeronautics Mail Zone 2893 PO Box 748 Fort Worth, TX 76101, USA 817-763-7376 (phone) 817-762-6911 (fax) Earl.W.Stromberg@lmco.com Self-Assembling Process for Fabricating Tailored Thin Films This simple, economical nanotechnology coating process enables the development of nanoparticle thin films

99

Basin-floor fans in the North Sea: Sequence stratigraphic models vs. sedimentary facies  

SciTech Connect

Examination of nearly 12,000 feet (3658m) of conventional core from Paleogene and Cretaceous deep-water sandstone reservoirs cored in 50 wells in 10 different areas or fields in the North Sea and adjacent regions reveals that these reservoirs are predominantly composed of mass-transport deposits, mainly sandy slumps and sandy debris flows. Sedimentary features indicating slump and debris-flow origin include sand units with sharp upper contacts; slump folds; discordant, steeply dipping layers (up to 60{degrees}); glide planes; shear zones; brecciated clasts; clastic injections; floating mudstone clasts; planar clast fabric; inverse grading of clasts; and moderate-to-high matrix content (5-30%). This model predicts that basin-floor fans are predominantly composed of sand-rich turbidites with laterally extensive, sheetlike geometries. However, calibration of sedimentary facies in our long (400-700 feet) cores with seismic and wire-line-log signatures through several of these basin-floor fans (including the Gryphon-Forth, Frigg, and Faeroe areas) shows that these features are actually composed almost exclusively of mass-transport deposits consisting mainly of slumps and debris flows. Distinguishing deposits of mass-transport processes, such as debris flows, from those of turbidity currents has important implications for predicting reservoir geometry. Debris flows, which have plastic flow rheology, can form discontinuous, disconnected sand bodies that are harder to delineate and less economical to develop than deposits of fluidal turbidity currents, which potentially produce more laterally continuous, interconnected sand bodies. Process sedimentological interpretation of conventional core is commonly critical for determining the true origin and distribution of reservoir sands.

Shanmugam, G.; Bloch, R.B. [Mobil Research and Development Corp., Dallas, TX (United States); Mitchell, S.M. [Mobil Exploration and Producing US, Inc., Dallas, TX (United States); Beamish, G.W.J.; Shields, K.E. [Mobil North Sea Ltd., London (United Kingdom); Hodgkinson, R.J.; Straume, T.; Syvertsen, S.E. [Mobil Exploration Norway, Inc., Stavanger (Norway); Damuth, J.E. [Univ. of Texas, Arlington, TX (United States)

1995-04-01T23:59:59.000Z

100

Fluoride and Arsenic in an Alluvial Aquifer System in Chihuahua, Mexico: Contaminant Levels, Potential Sources, and Co-occurrence  

Science Journals Connector (OSTI)

The objectives of this study were to identify potential sources of As and F within an alluvial aquifer system in central Chihuahua, to evaluate their change in concentrations with...?1, and 13 wells surpassed the...

Víctor M. Reyes-Gómez; María Teresa Alarcón-Herrera…

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

High Efficiency Fans and High Efficiency Electrical Motors  

E-Print Network (OSTI)

Replacing nominal efficient electrical motors with premium efficiency can save on electrical power costs in cotton gins. Connected horsepower load on industrial air fans is approximately 60% of the total horsepower in a typical cotton gin...

Breedlove, C. W.

102

New Energy Efficiency Standards for Furnace Fans to Reduce Carbon...  

Office of Environmental Management (EM)

by at least 3 billion metric tons in total by 2030, equal to more than a year's carbon pollution from the entire U.S. electricity system. Furnace fans are used to circulate air...

103

Property:Building/SPElectrtyUsePercCirculationFans | Open Energy  

Open Energy Info (EERE)

SPElectrtyUsePercCirculationFans SPElectrtyUsePercCirculationFans Jump to: navigation, search This is a property of type String. Circulation fans Pages using the property "Building/SPElectrtyUsePercCirculationFans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 18.6715328229 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 3.84924044288 + Sweden Building 05K0004 + 13.5679722118 + Sweden Building 05K0005 + 10.115947775 + Sweden Building 05K0006 + 10.4348038368 + Sweden Building 05K0007 + 3.09034005771 + Sweden Building 05K0008 + 1.5024342653 + Sweden Building 05K0009 + 13.4365662073 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 2.75323793817 + Sweden Building 05K0012 + 15.8993705073 + Sweden Building 05K0013 + 1.11354848212 +

104

Property:Building/SPElectrtyUsePercFans | Open Energy Information  

Open Energy Info (EERE)

SPElectrtyUsePercFans SPElectrtyUsePercFans Jump to: navigation, search This is a property of type String. Fans Pages using the property "Building/SPElectrtyUsePercFans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 7.29539104961 + Sweden Building 05K0002 + 16.7673965927 + Sweden Building 05K0003 + 27.9131959869 + Sweden Building 05K0004 + 12.2479817873 + Sweden Building 05K0005 + 29.1925346224 + Sweden Building 05K0006 + 15.8653423601 + Sweden Building 05K0007 + 12.809449974 + Sweden Building 05K0008 + 22.2979541594 + Sweden Building 05K0009 + 22.7088540206 + Sweden Building 05K0010 + 13.3738132017 + Sweden Building 05K0011 + 25.1040933765 + Sweden Building 05K0012 + 22.6542018423 + Sweden Building 05K0013 + 24.3166483485 +

105

Small-scale event sport tourism: fans as tourists  

Science Journals Connector (OSTI)

College sports events have the potential to increase city revenue and community spirit, while increasing traveler's awareness of the local community. This two-part study focuses on the tourism-related behaviors of fans who follow the University of Florida (USA) football team (the Gators). In the fall of 1999, 181 Gator fans were surveyed. Descriptive statistics illustrated that Sport Excursionists and Sport Tourists spent money on food and shopping while attending games, but their main motivation was to see the game. In the fall of 2000, 20 Gator fans took part in follow-up face-to-face interviews. Three themes emerged from the data about their travel-related behaviors when attending football games: (a) being a fan; (b) pilgrimages to the mecca of Gator football; and (c) on the road with the team. Further analysis of the results revealed that Gator fans are more likely to engage in traditional tourist behaviors while attending away games. Therefore, it is hypothesized that the tourism benefits for small communities may lie in leveraging the events to the visiting team's fans.

Heather J Gibson; Cynthia Willming; Andrew Holdnak

2003-01-01T23:59:59.000Z

106

Best Practice for Energy Efficient Cleanrooms: Fan-FilterUnits  

SciTech Connect

The HVAC systems in cleanrooms may use 50 percent or more of the total cleanroom energy use. Fan energy use accounts for a significant portion (e.g., over 50%) of the HVAC energy use in cleanrooms such as ISO Classes 3, 4, or 5. Three types of air-handling systems for recirculating airflows are commonly used in cleanrooms: (1) fan-tower systems with pressurized plenum, (2) ducted HEPA systems with distributed-fans, and (3) systems with fan-filter units. Because energy efficiency of the recirculation systems could vary significantly from system type to system type, optimizing aerodynamic performance in air recirculation systems appears to be a useful approach to improve energy efficiency in cleanrooms. Providing optimal airflows through careful planning, design and operation, including air change rate, airflow uniformity, and airflow speed, is important for controlling particle contamination in cleanrooms. In practice, the use of fan-filter units (FFUs) in the air-handling system is becoming more and more popular because of this type of system may offer a number of advantages. Often modular and portable than traditional recirculation airflow systems, FFUs are easier to install, and can be easily controlled and monitored to maintain filtration performance. Energy efficiency of air handling systems using fan-filter units can, however, be lower than their counterparts and may vary significantly from system to system because of the difference in energy performance, airflow paths, and the operating conditions of FFUs.

Xu, Tengfang

2005-06-15T23:59:59.000Z

107

Hydrological and chemical budgets of a mire pool formed on alluvial lowland of Hokkaido, northern Japan  

Science Journals Connector (OSTI)

Summary Mire pools – permanently water-filled depressions on peatlands – provide important habitats for myriad organisms. Recently, water balance change and eutrophication resulting from agricultural development are increasingly evident in mire pools of alluvial lowlands. Conservation of mire pool hydrochemistry is necessary. We investigated the hydrological and chemical budgets of a pristine mire pool, Akanuma Pool (95,280 m2 area; 1.8 m mean depth), located in Kushiro Mire in Hokkaido, northern Japan, during its ice-free period (April–November) in 2007–2008. Thereby we elucidated the hydrochemical characteristics of mire pools formed on alluvial lowlands. Surface water inflow and surface water outflow dominated the hydrological budget, respectively representing 18.3 and 20.2 mm day?1. Groundwater seepage through the pool bottom and surface water inflow mainly supplied the lake water with total nitrogen and Ca2+. Total phosphorus was supplied mostly by groundwater seepage through the bottom. These chemical constituents were run off from the pool mostly by surface water outflow. The input and output fluxes of water were 16–20 times greater than those of North American mire pools because of Hokkaido’s higher values of precipitation minus evapotranspiration (P–ET). Moreover, the Ca2+ input into the Akanuma Pool was several times greater than those reported from North American studies. Alluvial mineral soil under the peat layer supplied large amounts of nutrients and mineral ions including Ca2+. These results demonstrate that Hokkaido mire pools’ hydrochemical characteristics differ greatly from those of pools in North America. Furthermore, each hydrological budget component maintained a constant fraction throughout the two year study period, although the absolute flow rate varied concomitantly with the precipitation level. Maintaining this budget stability is important for the conservation of mire pool hydrochemistry.

Toshikazu Kizuka; Hiroyuki Yamada; Takashi Hirano

2011-01-01T23:59:59.000Z

108

Photo of the Week: Fan-tastic | Department of Energy  

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

Fan-tastic Fan-tastic Photo of the Week: Fan-tastic August 17, 2012 - 10:30am Addthis In Jonesboro, Arkansas, a Nordex USA employee stands between utility-scale components that will eventually make up a completed wind turbine. Under the Recovery Act, Nordex USA received a tax credit to assist in the creation of the Jonesboro manufacturing facility, which opened in October 2010. | Photo courtesy of Nordex USA. In Jonesboro, Arkansas, a Nordex USA employee stands between utility-scale components that will eventually make up a completed wind turbine. Under the Recovery Act, Nordex USA received a tax credit to assist in the creation of the Jonesboro manufacturing facility, which opened in October 2010. | Photo courtesy of Nordex USA. Sarah Gerrity Sarah Gerrity Multimedia Editor, Office of Public Affairs

109

Performance and Stability Analysis of a Shrouded-Fan UAV  

E-Print Network (OSTI)

This paper deals with the estimation of the performance and stability for a shrouded-fan unmanned rotorcraft whose mission profile also prescribes the flight in ground effect. The not so simple estimation of the aerodynamic coefficients and of the thrust in the various situations makes the performance calculation and the stability analysis difficult tasks. This is due to the strong interaction between the fan flow and shroud that causes quite different flow structures about the airframe depending on flight conditions. A further difficulty is related to the ground effect which produces substantial modifications in the rotor thrust and aerodynamic coefficients. To evaluate performance and stability, two models have been developed. One determines the aerodynamic coefficients of the shroud, whereas the other one calculates thrust and moment of the rotors system. Both models take into account the mutual interference between fan flow and fuselage and ground effect. Performance and stability are then discussed with ...

de Divitiis, Nicola

2009-01-01T23:59:59.000Z

110

Experimental Evaluation of Installed Cooking Exhaust Fan Performance  

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

Experimental Evaluation of Installed Cooking Exhaust Fan Performance Experimental Evaluation of Installed Cooking Exhaust Fan Performance Title Experimental Evaluation of Installed Cooking Exhaust Fan Performance Publication Type Report LBNL Report Number LBNL-4183E Year of Publication 2010 Authors Singer, Brett C., William W. Delp, and Michael G. Apte Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords airflow & pollutant transport group, cooktop, energy analysis and environmental impacts department, gas burners, indoor air quality, indoor environment department, kitchen, nitrogen dioxide, oven, pollutant emissions, range hood, residential, source control, task ventilation, technology, sustainability and impact assessment group Abstract The installed performance of cooking exhaust fans was evaluated through residential field experiments conducted on a sample of 15 devices varying in design and other characteristics. The sample included two rear downdraft systems, two under-cabinet microwave over range (MOR) units, three different installations of an under-cabinet model with grease screens across the bottom and no capture hood, two devices with grease screens covering the bottom of a large capture hood (one under-cabinet, one wall-mount chimney), four under-cabinet open hoods, and two open hoods with chimney mounts over islands. Performance assessment included measurement of airflow and sound levels across fan settings and experiments to quantify the contemporaneous capture efficiency for the exhaust generated by natural gas cooking burners. Capture efficiency is defined as the fraction of generated pollutants that are removed through the exhaust and thus not available for inhalation of household occupants. Capture efficiency (CE) was assessed for various configurations of burner use (e.g. single front, single back, combination of one front and one back, oven) and fan speed setting. Measured airflow rates were substantially lower than the levels noted in product literature for many of the units. This shortfall was observed for several units costing in excess of $1000. Capture efficiency varied widely (from <5% to roughly 100%) across devices and across conditions for some devices. As expected, higher capture efficiencies were achieved with higher fan settings and the associated higher air flow rates. In most cases, capture efficiencies were substantially higher for rear burners than for front burners. The best and most consistent performance was observed for open hoods that covered all cooktop burners and operated at higher airflow rates. The lowest capture efficiencies were measured when a front burner was used with a rear backdraft system or with lowest fan setting for above the range systems that do not cover the front burners.

111

Use of VFDs on Asphalt Plant Induced Draft Fans  

E-Print Network (OSTI)

mixer at the burner end and flows across the aggregate as it moves toward the burner. The hot air Extrapolating savings achieved with 10 asphalt plants in the Intermountain West, almost 200,000 MWh of annual energy savings could be achieved... Name Damper Plant kWh Fan kWh Fan % Staker West Haven Outlet 1,021,040 ,68130% Ogden Plant Outlet 548,640 171,257 31% POM Plant Outlet 1,284,480 ,61825% Orem Plant Inlet 890,250 96,731 11% Staker Cedar City Outlet 502,320 115,949 23% Staker Beck Street...

Anderson, G. R.; Case, P. L.; Lowery, J.

2005-01-01T23:59:59.000Z

112

Amateur experts: International fan labor in Swedish independent music  

E-Print Network (OSTI)

of Swedish music than we have, which is kind of cool.” Well-placed fans can even break bands. Nick Levine, explains how he and his partner in the London’s Swedish nightclub Tack!Tack!Tack! (which had a strong MySpace presence of its own) influenced... work by positioning themselves as enthusiasts too far outside the scene to merit economic reward. These fans sometimes took umbrage to implications that they are involved in the scene, doing work, or should be paid: I don’t want to say I’m “involved...

Baym, Nancy K.; Burnett, Robert

2009-09-01T23:59:59.000Z

113

Experimental investigation on the energy-saving diffuser of a main fan  

Science Journals Connector (OSTI)

The main fan diffuser in a coal mine is an energy-recycling equipment with a dynamic energy loss for the main fan. Engineering practices ... are irrational. To solve the problem, an energy-saving diffuser is desi...

Shi-qiang Chen; Hai-qiao Wang…

2012-03-01T23:59:59.000Z

114

2014-10-27 Issuance: Test Procedure for Ceiling Fan Light Kits...  

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

27 Issuance: Test Procedure for Ceiling Fan Light Kits; Notice of Proposed Rulemaking 2014-10-27 Issuance: Test Procedure for Ceiling Fan Light Kits; Notice of Proposed Rulemaking...

115

A Method for Evaluating the Application of Variable Frequency Drives with Coal Mine Ventilation Fans.  

E-Print Network (OSTI)

??The adjustable-pitch setting on an axial-flow fan is the most common method of controlling airflow for primary coal mine ventilation. With this method, the fan… (more)

Murphy, Tyson M.

2006-01-01T23:59:59.000Z

116

Improve the Energy Efficiency of Fan Systems, Software Tools for Industry, Industrial Technologies Program (ITP) (Fact Sheet)  

SciTech Connect

This fact sheet describes how the Industrial Technologies Program Fan System Assessment Tool (FSAT) can help quantify energy consumption and savings opportunities in industrial fan systems.

Not Available

2008-12-01T23:59:59.000Z

117

DOE Publishes Notice of Proposed Rulemaking for Residential Furnace Fans Energy Conservation Standards  

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

The Department of Energy has published a notice of proposed rulemaking regarding energy conservation standards for residential furnace fans.

118

Sequence stratigraphic interpretation methods for low-accommodation, alluvial depositional sequences: applications to reservoir characterization of Cut Bank field, Montana  

E-Print Network (OSTI)

laterally compartmentalize reservoir sands. Basal Sunburst sand (Sunburst 1, average net-to-gross ratio ~0.3) has better reservoir quality than other Sunburst or upper Cut Bank sands, but its reservoir quality is significantly less than that of lower Cut...

Ramazanova, Rahila

2009-05-15T23:59:59.000Z

119

Fan Aerodynamic Performance Guarantees: Do Your Policies, Procedures and Penalties Provide Adequate Certainty?  

E-Print Network (OSTI)

With few exceptions, fan vendors do not provide a written guarantee regarding aerodynamic performance. Some fan vendors even go so far as to state in their terms and conditions of sale that fan performance is not guaranteed unless it is specifically...

Kaufman, S. G.; Martin, V.; Falk, M. A.

2004-01-01T23:59:59.000Z

120

Early to middle Miocene foraminifera from the deep-sea Congo Fan, offshore Angola  

E-Print Network (OSTI)

Early to middle Miocene foraminifera from the deep-sea Congo Fan, offshore Angola Severyn Kender,1 section of an exploration well penetrating the distal part of the Congo Fan (~2000m water depth) yielded Miocene Monterey Carbon Isotope Excursion. INTRODUCTION The Congo Fan has been the subject

Kaminski, Michael A.

Note: This page contains sample records for the topic "alluvial fan deposits" 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

INTRODUCTION The Congo Fan is the distal component of the sec-  

E-Print Network (OSTI)

INTRODUCTION The Congo Fan is the distal component of the sec- ond largest delta system the Congo River and its associated tributaries (see Goudie, 2005). The Congo Fan is a terrigenous wedge foraminiferal microfauna from the 107 Oligocene Deep-Water Agglutinated Foraminifera from the Congo Fan

Kaminski, Michael A.

122

Performance of ECM controlled VAV fan powered terminal units  

E-Print Network (OSTI)

2006). The airflow and power consumption performance models had an R2 equal to 0.990 or greater for every terminal unit tested. An air leakage model was employed to account for leakage in the parallel designed VAV terminal units when the internal fan...

Cramlet, Andrew Charles

2009-05-15T23:59:59.000Z

123

Heuristics for Balancing Turbine Fans Samir V. Amiouny  

E-Print Network (OSTI)

April 20, 1997 Abstract We develop heuristics for a problem that models the static balancing of turbine Reiger, 1986. In some cases, such as in the constructionof hydraulic, steam or gas turbines, fan blades to counteract the residual un- balance. For gas and steam turbines, this is necessary not only when the engine

Bartholdi III, John J.

124

Depositional systems and petroleum potential, Mesaverde Formation southeastern Wind River basin, Wyoming  

SciTech Connect

Depositional environments and systems of the Wind River basin Mesaverde Formation were interpreted from an analysis of outcrops along the Casper arch and Rattlesnake Hills anticline and cores and wireline logs from the adjacent subsurface. The Fales Sandstone and Parkman Sandstone/unnamed middle member are deposits of eastward progradational, wave-dominated strand-plain and deltaic complexes. Basal portions of the Fales Sandstone and the Parkman Sandstone are composed of a thickening- and coarsening-upward sandstone sequence whose facies represent storm-dominated inner-shelf and wave-dominated shore-zone environments. Facies sequences in the upper Fales Sandstone interval and the unnamed middle member are interpreted as deposits of lower coastal plain (marshes, bay fills, distributary channels, and crevasse splays) and upper coastal plain (alluvial channels, crevasse splays and fine-grained flood basin) sequences. The Teapot Sandstone is interpreted as an alluvial deposit. Analysis of facies sequences in the Teapot suggests a change in fluvial style, from braided-belt deposits along the southwest flank to meander-belt deposits along the northeast flank of the basin. These fluvial systems fed the Teapot deltas to the east. Stratigraphic plays for oil and gas include alluvial valley fills and point-bar deposits in the Teapot Sandstone, storm-dominated shelf sands in the upper Cody Shale and the Fales and Parkman Sandstones, and a transgressive barrier-bar sequence in the upper Fales Sandstone. Laterally continuous shore-zone sandstones may form combination traps where pinch-outs occur on structure.

Hippe, D.J.; Needham, D.W.; Ethridge, F.G.

1986-08-01T23:59:59.000Z

125

Modeling study of deposition locations in the 291-Z plenum  

SciTech Connect

The TEMPEST (Trent and Eyler 1991) and PART5 computer codes were used to predict the probable locations of particle deposition in the suction-side plenum of the 291-Z building in the 200 Area of the Hanford Site, the exhaust fan building for the 234-5Z, 236-Z, and 232-Z buildings in the 200 Area of the Hanford Site. The Tempest code provided velocity fields for the airflow through the plenum. These velocity fields were then used with TEMPEST to provide modeling of near-floor particle concentrations without particle sticking (100% resuspension). The same velocity fields were also used with PART5 to provide modeling of particle deposition with sticking (0% resuspension). Some of the parameters whose importance was tested were particle size, point of injection and exhaust fan configuration.

Mahoney, L.A.; Glissmeyer, J.A.

1994-06-01T23:59:59.000Z

126

Geologic and physiographic controls on bed-material yield, transport, and channel morphology for alluvial and bedrock rivers, western Oregon  

Science Journals Connector (OSTI)

...2. Howard, A.D. , 1980, Thresholds in river regimes, in Coates D.R., Vitek J.D., eds., Thresholds...1982, The Composition of Recent Alluvial Gravels in Alberta River Beds: Alberta Research Council Bulletin 41, 151 p. Sklar, L...

Jim E. O’Connor; Joseph F. Mangano; Scott W. Anderson; J. Rose Wallick; Krista L. Jones; Mackenzie K. Keith

127

ISSUANCE: 2014-12-03 Energy Conservation Standards for Commercial and Industrial Fans and Blowers: Availability of Provisional Analysis Tools  

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

Energy Conservation Standards for Commercial and Industrial Fans and Blowers: Availability of Provisional Analysis Tools

128

An integrated decision aid system for the development of Saint Charles River alluvial plain, Quebec, Canada  

Science Journals Connector (OSTI)

We describe an integrated decision aid system designed to assist land-use planning and management of the alluvial plain of Saint Charles River, Quebec. The first stages of the development of the system consisted in building a georeferenced database managed by a geographical information system (GIS), and to elaborate eight different development scenarios along the Saint Charles River in a multiple decision-maker context. Multicriteria analysis (MCA) was then used to evaluate and compare the scenarios according to eleven criteria, using a combination of GIS analysis with Mapinfo and multicriteria processing carried out in PROMCALC & GAIA 3.5. This process leads to a partial ranking (PROMETHEE I) and a complete ranking of the scenarios (PROMETHEE II) for each individual decision-maker as well as for the whole group. We show that this approach helps multiple decision-makers to reach rational decisions based on scientific data and political considerations.

Nadine J. Martin; Benoit St Onge; Jean-Philippe Waaub

1999-01-01T23:59:59.000Z

129

Variable Speed Fan Retrofits for Computer Room Air Conditioners  

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

Variable-Speed Fan Variable-Speed Fan Retrofits for Computer-Room Air Conditioners Prepared for the U.S. Department of Energy Federal Energy Management Program Technology Case Study Bulletin By Lawrence Berkeley National Laboratory Steve Greenberg September 2013 2 Contacts Steve Greenberg Lawrence Berkeley National Laboratory One Cyclotron Road, 90R3111 Berkeley, California 94720 (510) 486-6971 segreenberg@lbl.gov For more information on FEMP, please contact: Will Lintner, P.E., CEM Federal Energy Management Program U.S. Department of Energy 1000 Independence Ave. S.W. Washington, D. C. 20585-0121 (202) 586-3120 william.lintner@ee.doe.gov 3 Acknowledgements EPRI: Dennis Symanski, Brian Fortenbery Synapsense: Garret Smith, Patricia Nealon Vigilent: Corinne Vita

130

LAB 3 Cleanroom Fan and Filters Analysis for the Supports  

SciTech Connect

A 1400 lb blower fan and a 2700 lb filter box are to be supported at Lab 3. The support structure is a framework that suspends from the building wall to the cleanroom and to a washroom. The framework is made of welded 4-inch x 8-inch x 1/4-inch rectangular A36 steel tube. Welds are to be standard prequalified welds as by AISC. The main support frame is approximately 7-feet off the floor and welded onto the top of 10 columns. A deflection and stress study was performed on the planned structure. A scaled plan view is given in drawing 3823.113-MD-358764. The heaviest loaded beams were labeled with a letter designation and were studied for beam deflections and stresses. The 4-inch x 8-inch rectangular tube was also used for the substructure for the fan and filter mounts and to support a temporary floor grating during maintenance.

Cease, H.; /Fermilab

1998-05-08T23:59:59.000Z

131

Polycyclic aromatic hydrocarbon distributions in Mississippi Fan sediments  

E-Print Network (OSTI)

. Sandberg, B. A. , University of Colorado Chairman of Advisory Committee: Dr. James M. Brooks Polycyclic aromatic hydrocarbon (PAH) distributions in Upper Pleistocene sediments of the Mississippi Fan and two intraslope basins in the Gulf of Mexico... chemistries is separate phase migration driven by hydrodynamic flow upward along fault planes. The same variables at intraslope basin sites are highly altered, possibly due to extensive gravity slump faulting. High- performance liquid chromatography...

Sandberg, William Allan

2012-06-07T23:59:59.000Z

132

Evaluation of Retrofit Variable-Speed Furnace Fan Motors  

SciTech Connect

In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3 (tm) replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh. Average cost savings were $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

Aldrich, R.; Williamson, J.

2014-01-01T23:59:59.000Z

133

Core-based evidence for sandy slump and sandy debris flow facies in the Pliocene and Pleistocene of the Gulf of Mexico: Implications for submarine fan models  

SciTech Connect

Examination of nearly 3,500 feet of conventional core from Pliocene and Pleistocene deep-water reservoirs cored in 25 wells in 8 different areas covering the eastern, central and western Gulf of Mexico reveals that the reservoirs are predominantly composed of mass-transport deposits, mainly sandy slumps and sandy debris flows (60-100% of cored intervals). Bottom-current reworked sands are common (10-50%). Of importance to existing submarine fan models is that turbidities are extremely rare (<1 % of all cores). Sedimentary features indicative of slump and debris-flow origin include sand units with sharp upper contacts, slump folds, discordant, steeply dipping layers (up to 60[degrees]), glide planes, shear zones, brecciated clasts, rafted mudstone clasts, planar clast fabric, inverse grading of clasts, and moderate-to-high matrix content (5-20 %). These reservoirs have been interpreted by others to represent turbidite-dominated basin-floor fans and slope fans of the often used sequence stratigraphic model. However, our core data do not show a dominance of turbidities. Sandy debris flows exhibit a variety of log motifs (e.g., blocky, fining-up, and coarsening-up) due to changes in concentration of midstone clasts, and a variety of internal seismic facies (e.g., parallel-continuous, irregular-discontinuous, chaotic -discontinuous, and lateral pinch out) perhaps due to changes in stacking patterns of debris flows and slumps. Classic submarine-fan models, commonly advocated for these reservoirs, may not be appropriate. We propose a slump and debris-flow, dominated slope model in which sea-floor topography and depositional freezing (i.e., plastic flows) control sand distribution and geometry. Contrary to popular belief, sandy debris flows can be thick, areally extensive, and excellent reservoirs.

Shanmugam, G. (Mobil Exploration and Producing Technical Center, Dallas, TX (United States)); Zimbrick, G. (Mobil Exploration and Producing U.S., Dallas, TX (United States))

1996-01-01T23:59:59.000Z

134

Core-based evidence for sandy slump and sandy debris flow facies in the Pliocene and Pleistocene of the Gulf of Mexico: Implications for submarine fan models  

SciTech Connect

Examination of nearly 3,500 feet of conventional core from Pliocene and Pleistocene deep-water reservoirs cored in 25 wells in 8 different areas covering the eastern, central and western Gulf of Mexico reveals that the reservoirs are predominantly composed of mass-transport deposits, mainly sandy slumps and sandy debris flows (60-100% of cored intervals). Bottom-current reworked sands are common (10-50%). Of importance to existing submarine fan models is that turbidities are extremely rare (<1 % of all cores). Sedimentary features indicative of slump and debris-flow origin include sand units with sharp upper contacts, slump folds, discordant, steeply dipping layers (up to 60{degrees}), glide planes, shear zones, brecciated clasts, rafted mudstone clasts, planar clast fabric, inverse grading of clasts, and moderate-to-high matrix content (5-20 %). These reservoirs have been interpreted by others to represent turbidite-dominated basin-floor fans and slope fans of the often used sequence stratigraphic model. However, our core data do not show a dominance of turbidities. Sandy debris flows exhibit a variety of log motifs (e.g., blocky, fining-up, and coarsening-up) due to changes in concentration of midstone clasts, and a variety of internal seismic facies (e.g., parallel-continuous, irregular-discontinuous, chaotic -discontinuous, and lateral pinch out) perhaps due to changes in stacking patterns of debris flows and slumps. Classic submarine-fan models, commonly advocated for these reservoirs, may not be appropriate. We propose a slump and debris-flow, dominated slope model in which sea-floor topography and depositional freezing (i.e., plastic flows) control sand distribution and geometry. Contrary to popular belief, sandy debris flows can be thick, areally extensive, and excellent reservoirs.

Shanmugam, G. [Mobil Exploration and Producing Technical Center, Dallas, TX (United States); Zimbrick, G. [Mobil Exploration and Producing U.S., Dallas, TX (United States)

1996-12-31T23:59:59.000Z

135

Turning on the Fan and Turning off the A/C | Department of Energy  

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

Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C September 20, 2010 - 3:00pm Addthis As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Part of my research led me to understand how ceiling fans are considered the most effective fans compared among table fans, floor fans, and fans mounted to poles or walls because they effectively circulate the air in a room to create a draft throughout the room.

136

Turning on the Fan and Turning off the A/C | Department of Energy  

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

Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C September 20, 2010 - 3:00pm Addthis As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Part of my research led me to understand how ceiling fans are considered the most effective fans compared among table fans, floor fans, and fans mounted to poles or walls because they effectively circulate the air in a room to create a draft throughout the room.

137

Low-frequency transfer of seismic energy by superficial soil deposits and soft rocks  

SciTech Connect

Recordings of recent strong earthquakes obtained on alluvial sites show that the maximum horizonta accelerations tend towards a limit of about 0-45 to 0-50g, associated with large displacements. By contrast, vertical accelerations do not appear to be subject to such a limit (1.7g for the 1979 Imperial Valley earthquake). Theoretical linear elasticity models, when applied to superficial layers of low strength, seem to be inadequate for the prediction of near-field ground motions in alluvial deposits. A good approximation for the horizontal component of certain Imperial Valley records was, however, obtained through a non-linear approach, using local soil properties together with a reasonable hypothesis for motion at the base of the superficial layers in question that included large values of acceleratio for high-frequency shear waves.

Mohammadioun, B.; Pecker, A.

1984-07-01T23:59:59.000Z

138

CORRELATION OF MAP UNITS U.S. DEPARTMENT OF THE INTERIOR  

E-Print Network (OSTI)

are mapped, but in some areas, small deposits are not shown Very young wash deposits (late Holocene)--Unconsolidated Holocene)--Active and recently active alluvial fans. Consists of unconsolidated, bouldery, cobbley Pleistocene)--Unconsolidated bouldery to sandy alluvium marginal to active and recently active washes Young

Lee, Cin-Ty Aeolus

139

CORRELATION OF MAP UNITS U.S. DEPARTMENT OF THE INTERIOR  

E-Print Network (OSTI)

mostly of unconsolidated sand in ephemeral, engineered river channel. Prior to agricultural development young alluvial-fan deposits (late Holocene)--Chiefly unconsolidated cobbly and gravelly sand. Forms on valley floors. Gray, unconsolidated, clayey and silty sand, some gravel Very young colluvial deposits

Lee, Cin-Ty Aeolus

140

Equipartition of two measures by a 4-fan Imre B ar any  

E-Print Network (OSTI)

, there is a point and four hal ines emanating form it such that each of the four sectors have measure 1=4 in both are used here without much change. A point x in the plane and four hal ines, ` 1 ; ` 2 ; ` 3 ; ` 4 of S 2 . A 4-fan in R 2 is lifted to a 4-fan in S 2 in a natural way: a spherical 4-fan is a point x 2

Bárány, Imre

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Development of In-Situ Fan Curve Measurement with One Airflow Measurement  

E-Print Network (OSTI)

Development of In-situ Fan Curve Measurement with One Airflow Measurement Guopeng Liu, Ik-Seong Joo, Li Song, Mingsheng Liu, Ph.D., P.E. Energy Systems Laboratory University of Nebraska ABSTRACT Fan airflow is the key parameter for air... is another issue for this method. Therefore, it is very important to find an effective way to measure the airflow accurately. An airflow control named VSD volumetric tracking (VSDVT) has been developed by Liu [13] recently. This method uses fan...

Liu, G.; Joo, I. S.; Song, L.; Liu, M.

2003-01-01T23:59:59.000Z

142

How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? |  

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

Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? September 23, 2010 - 7:30am Addthis On Monday, Chris told you about his new ceiling fan and how it's changed the way he cools his home. In warm weather, ceiling fans cool people (not rooms) by producing a wind-chill effect-which is why you should turn off fans when you leave the room. A ceiling fan allows you to raise the thermostat setting about 4°F with no reduction in comfort. Ceiling fans don't just cool in the summer; you can also reverse the direction in the winter to provide an updraft and force warm air down into the room. How has a ceiling fan affected the way you heat and cool your home? Each Thursday, you have the chance to share your thoughts on a question

143

How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? |  

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

Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? September 23, 2010 - 7:30am Addthis On Monday, Chris told you about his new ceiling fan and how it's changed the way he cools his home. In warm weather, ceiling fans cool people (not rooms) by producing a wind-chill effect-which is why you should turn off fans when you leave the room. A ceiling fan allows you to raise the thermostat setting about 4°F with no reduction in comfort. Ceiling fans don't just cool in the summer; you can also reverse the direction in the winter to provide an updraft and force warm air down into the room. How has a ceiling fan affected the way you heat and cool your home? Each Thursday, you have the chance to share your thoughts on a question

144

Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers  

E-Print Network (OSTI)

8.0 percent. The reduced electrical energy use at the siteamount of fan electrical energy can be conserved. The4 megawatts; overall site electrical energy savings provided

Coles, Henry

2014-01-01T23:59:59.000Z

145

Genetic stratigraphy of a part of the Miocene Congo Fan, West Africa  

Science Journals Connector (OSTI)

Abstract The stratigraphic framework and reservoir distribution are essential factors controlling the accumulation of petroleum in the Miocene Congo Fan. Analysis of cores, well logs, and seismic data suggest that the submarine fan autocycle (genetic cycle) is presented by sequence of slump, debrite, densite currents, and turbidites, whereas allocycles (long-term cycles) may be composed of several autocycles (short-term cycles) that, appear as a stacking pattern or retrogradational fan. Scour surfaces at the base of gravity flow channel, stable hemipelagic mudstone section, and the surface between fan retrogradation and progradation can be used for the correlations.

Zhenglong Jiang; Rong Wang; Wenbo Zheng

2014-01-01T23:59:59.000Z

146

Deposition Process  

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

Pulsed Plasma Processing Pulsed Plasma Processing NEW: Downloadable: Invited Talk "Pulsed Metal Plasmas," presented at the 2006 AVS Meeting, San Francisco, California, November 15, 2006. (PDF, file size 8 MB). Plasma Sources for Window Coatings Deposition processes for low-emittance and solar control coatings can be improved through the use of advanced plasma technology developed at LBNL. A new type of constricted glow-discharge plasma source was selected for the 1997 R&D 100 Award. Invented by LBNL researchers Andre Anders, Mike Rubin, and Mike Dickinson, the source was designed to be compatible with industrial vacuum deposition equipment and practice. Construction is simple, rugged and inexpensive. It can operate indefinitely over a wide range of chamber pressure without any consumable parts such as filaments or grids. Several different gases including Argon, Oxygen and Nitrogen have been tested successfully.

147

Pulsed Laser Deposition | EMSL  

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

Pulsed Laser Deposition Pulsed Laser Deposition EMSL's pulsed laser deposition (PLD) system is designed for epitaxial growth of oxide, ceramic, or synthetic mineral thin films and...

148

ECONOMIC RECOVERY OF OIL TRAPPED AT FAN MARGINS USING HIGH ANGLE WELLS AND MULTIPLE HYDRAULIC FRACTURES  

SciTech Connect

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. A high-angle well will be drilled in the fan-margin portion of a slope-basin clastic reservoir and will be completed with multiple hydraulic-fracture treatments. Geologic modeling, reservoir characterization, and fine-grid reservoir simulation will be used to select the well location and orientation. Design parameters for the hydraulic-fracture treatments will be determined, in part, by fracturing an existing test well. Fracture azimuth will be predicted by passive seismic monitoring of a fracture-stimulation treatment in the test well using logging tools in an offset well.

Mike L. Laue

1998-11-06T23:59:59.000Z

149

ANCIENT DELTAS IN A MARTIAN CRATE LAKE: FASSETT AND HEAD 1 Fluvial Sedimentary Deposits on Mars: Ancient Deltas  

E-Print Network (OSTI)

in the Nili Fossae region of Mars reveal two valley networks (~80 and ~200 km long) that each formed in a crater lake. Water flowing in the valley networks entered the crater and deposited the fans, and ponded on the martian surface, primarily manifested in the form of valley networks [Carr, 1996], there have been

Head III, James William

150

A COMPUTATIONAL AND EXPERIMENTAL ANALYSIS OF A DUCTED FAN USED IN VTOL UAV SYSTEMS  

E-Print Network (OSTI)

conditions. Fan rotor field including secondary flows, tip vortices, blade boundary layers and the wake sys wind tunnel test data. Total pressure measurements and computational predictions of mean flow field shows a significant level of 3D hub separation affecting the overall performance of the ducted fan

Camci, Cengiz

151

University of Nevada Las Vegas Arduino Project Report: Fan Speed Control as a Function of Thermistor  

E-Print Network (OSTI)

University of Nevada Las Vegas Arduino Project Report: Fan Speed Control as a Function, and an arduino board. The arduino board is programmed to read the analog input, the thermistor, and respond by the arduino that will decrease the speed of the fan. Furthermore, if the temperature goes up, the resistance

Kachroo, Pushkin

152

The Spacing of Ceiling Fans for Human Comfort in Warm Temperature Conditions  

E-Print Network (OSTI)

Airspeed tests of a commercially popular 52 in. ceiling fan operating at a low speed of 155 fpm provided sufficient airspeed for comfort to 82F in an average floor area of 97.2 ft^2 beneath the fan. When operating at maximum speed, the average floor...

Spain, S.

1987-01-01T23:59:59.000Z

153

Reworking of Aggraded Debris Fans by the 1996 Controlled Flood on the Colorado  

E-Print Network (OSTI)

Reworking of Aggraded Debris Fans by the 1996 Controlled Flood on the Colorado River in Grand with the BUREAU OF RECLAMATION #12;Reworking of Aggraded Debris Fans by the 1996 Controlled Flood on the Colorado ....................................................................................................................... 6 Effects of debris flows on the Colorado River

154

Boost Converter Provides Temperature-Controlled Operation of 12V Fan from +5V Supply  

E-Print Network (OSTI)

Boost Converter Provides Temperature-Controlled Operation of 12V Fan from +5V Supply John Mc rated (12V supply) speed. Fan speed is controlled by sensing the ambient temperature in the system that the temperature control characteristic is unaffected by supply variations. The negative feedback loop

McNeill, John A.

155

Energy Efficient Single Stack Exhaust Fan Systems (E3S3F)  

E-Print Network (OSTI)

This paper first investigates the fan energy performance of a constant air volume exhaust system. Two single stack energy efficient exhaust fan systems (E3S3F) are presented. The E3S3F-I has the static pressure sensor located at the inlet...

Wang, G.; Liu, M.

2001-01-01T23:59:59.000Z

156

Inlet swirl distortion effects on the generation and propagation of fan rotor shock noise  

E-Print Network (OSTI)

A body-force-based fan model for the prediction of multiple-pure-tone noise generation is developed in this thesis. The model eliminates the need for a full-wheel, three-dimensional unsteady RANS simulation of the fan blade ...

Defoe, Jeff (Jeffrey James)

2011-01-01T23:59:59.000Z

157

Four new species of deep water agglutinated foraminifera from the OligoceneMiocene of the Congo Fan  

E-Print Network (OSTI)

Four new species of deep water agglutinated foraminifera from the Oligocene­Miocene of the Congo-water agglutinated benthic foraminifera are described from the Oligocene and Miocene of the Congo Fan, offshore the distal section of the Congo Fan. INTRODUCTION The Congo Fan is a terrigenous wedge largely built

Kaminski, Michael A.

158

Microsoft Word - Control_and_Fan_Improvements_in_CRAHs.doc  

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

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

159

Fan-shape optimisation using CFD and genetic algorithms for increasing the efficiency of electric motors  

Science Journals Connector (OSTI)

The electric motor efficiency represents the effectiveness with which the motor converts electrical energy into mechanical energy. As the energy losses are converted into heat, which is dissipated by the motor frame aided by internal and external fans, a better cooling system adds up to better efficiency. In recent years, improvements in motor efficiency have been achieved but at higher costs. By using Genetic Algorithms (GAs), changes are introduced to the fan shape looking for a better aerodynamic performance. The evaluation of the achieved fan efficiency with the modified shapes is performed with Computational Fluid Dynamics (CFD) simulation software.

Noel Leon-Rovira; Eduardo Uresti; Waldo Arcos

2007-01-01T23:59:59.000Z

160

Integrating VAV zone requirements with supply fan operation. [Variable Air Volume  

SciTech Connect

The use of communicating direct digital controls (DDC) with distributed intelligence offers new opportunities for energy conservation while maintaining occupant comfort in commercial buildings. Integrating control within a single DDC panel improves performance. Integrating control by communications between multiple controllers can further enhance system operation. One example is a DDC static pressure reset strategy for supply fan operation in variable air volume (VAV) supply air distribution systems. This strategy integrates the requirements of the VAV terminal units serving the building zones to minimize fan energy use. This article describes terminal unit operation, supply fan control, concurrent polling, operational data and power savings.

Warren, M.L. (ASI Controls, San Ramon, CA (United States)); Norford, L.K. (Massachusetts Inst. of Tech., Cambridge (United States))

1993-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

ECONOMIC RECOVERY OF OIL TRAPPED AT FAN MARGINS USING HIGH ANGLE WELLS AND MULTIPLE HYDRAULIC FRACTURES  

SciTech Connect

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. A high-angle well will be drilled in the fan-margin portion of a slope-basin clastic reservoir and will be completed with multiple hydraulic-fracture treatments. Geologic modeling, reservoir characterization, and fine-grid reservoir simulation will be used to select the well location and orientation. Design parameters for the hydraulic-fracture treatments will be determined, in part, by fracturing an existing test well. Fracture azimuth will be predicted by passive seismic monitoring of a fracture-stimulation treatment in the test well using logging tools in an offset well. The long radius, near horizontal well was drilled during the first quarter of 1996. Well conditions resulted in the 7 in. production liner sticking approximately 900 ft off bottom. Therefore, a 5 in. production liner was necessary to case this portion of the target formation. Swept-out sand intervals and a poor cement bond behind the 5 in. liner precluded two of the three originally planned hydraulic fracture treatments. As a result, all pay intervals behind the 5 in. liner were perforated and stimulated with a non-acid reactive fluid. Following a short production period, the remaining pay intervals in the well (behind the 7 in. liner) were perforated. The well was returned to production to observe production trends and pressure behavior and assess the need to stimulate the new perforations.

Mike L. Laue

2001-09-28T23:59:59.000Z

162

Property:Building/SPBreakdownOfElctrcityUseKwhM2Fans | Open Energy  

Open Energy Info (EERE)

Fans Fans Jump to: navigation, search This is a property of type String. Fans Pages using the property "Building/SPBreakdownOfElctrcityUseKwhM2Fans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 5.21311928139 + Sweden Building 05K0002 + 18.5995610535 + Sweden Building 05K0003 + 20.3514016294 + Sweden Building 05K0004 + 8.08671679198 + Sweden Building 05K0005 + 16.0166245259 + Sweden Building 05K0006 + 10.358795651 + Sweden Building 05K0007 + 8.3953561818 + Sweden Building 05K0008 + 9.28527472527 + Sweden Building 05K0009 + 12.8398873749 + Sweden Building 05K0010 + 20.0966982674 + Sweden Building 05K0011 + 6.90408963585 + Sweden Building 05K0012 + 8.60719192175 + Sweden Building 05K0013 + 16.7539365907 +

163

Property:Building/SPBreakdownOfElctrcityUseKwhM2CirculationFans | Open  

Open Energy Info (EERE)

CirculationFans CirculationFans Jump to: navigation, search This is a property of type String. Circulation fans Pages using the property "Building/SPBreakdownOfElctrcityUseKwhM2CirculationFans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 13.3422495258 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 2.80646609789 + Sweden Building 05K0004 + 8.95823904901 + Sweden Building 05K0005 + 5.55016340076 + Sweden Building 05K0006 + 6.81308969891 + Sweden Building 05K0007 + 2.02541916787 + Sweden Building 05K0008 + 0.625641025641 + Sweden Building 05K0009 + 7.59721281624 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.757191316527 + Sweden Building 05K0012 + 6.04077487892 + Sweden Building 05K0013 + 0.767224182906 +

164

Design and Operation of Fan-Coil Units in Using River Water as Chilled Water  

E-Print Network (OSTI)

Based on the case research for China's first central air conditioning system utilizing natural cool river water as chilled water, this paper analyzes the technical design-and-innovation process and operating characteristics of Fan-Coil Units (FCUs...

Jiang, A.; Chen, H.; Ma, W.; Zhu, H.

2006-01-01T23:59:59.000Z

165

Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers  

E-Print Network (OSTI)

metrics. Consider the power for cooling saved because of theadditional infrastructure cooling power based upon 0.464 kW/Associated Infrastructure Cooling Power) Due to Fan Upgrade

Coles, Henry

2014-01-01T23:59:59.000Z

166

Late quaternary geomorphology and geoarchaeology of a segment of the Central Mimbres River Valley, Grant County, New Mexico  

E-Print Network (OSTI)

Two terraces, a modem floodplain, and alluvial fans were identified along a segment of the central Mimbres River Valley in Grant County, New Mexico. The oldest terrace, T2, is composed of one major depositional unit (1) and is capped by a...

Fitch, Michael Anthony

2012-06-07T23:59:59.000Z

167

Some dynamics of carbon, nitrogen and phosphorus in the marine shelf environment of the Mississippi Fan  

E-Print Network (OSTI)

SOME DYNAMICS OF CARBON, NITROGEN AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1974 Major Subject: Chemical Oceanography SOME DYNAMICS OF CARBON NITROGEN, AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Approved as to style...

Armstrong, Daniel Wayne

1974-01-01T23:59:59.000Z

168

Modeling of Electronically Commutated Motor Controlled Fan-powered Terminal Units  

E-Print Network (OSTI)

Feet Per Minute ECM Electronically Commutated Motor FPTU Fan Powered Terminal Unit Pdown Downstream Static Pressure PF Power Factor Pup Upstream Static Pressure SCR Silicon Controlled Rectifier THD Total Harmonic Distortion VAV Variable Air... parallel unit pressurizes the FPTU causing some of the primary air to leak out of the unit. Another difference between them is that series terminal units allow the primary air system to operate at a lower static pressure because the terminal unit fan...

Edmondson, Jacob Lee

2011-02-22T23:59:59.000Z

169

Noise and vibration characteristics of cleanroom fan filter units  

Science Journals Connector (OSTI)

Fan filter units (FFU’s) are used increasingly by the microelectronics industry to provide recirculation air in cleanrooms. Such units usually consist of one or more direct?drive blowers located in a small discharge plenum and a HEPA or ULPA filter. There may be several hundred FFU’s in a large cleanroom. The noise and vibration generated by FFU’s differ greatly between manufacturers. Since it is difficult to apply external noise and vibration mitigation it is important to select an FFU model with appropriate noise and vibration levels so that a cleanroom served by these units will meet the prespecified noise and vibration criteria. Unfortunately FFU manufacturers usually do not provide enough information for predicting the FFU generated sound?pressure spectrum or vibration in a cleanroom. In this paper simple noise and vibration measurement methods will be described which can be used as a basis for specifying FFU performance without special testing facilities. Measured data will be presented for a number of units. Procedures will be demonstrated to predict the performance of a cleanroom which uses FFU’s as the primary source of recirculation air.

Mei Q. Wu; Colin G. Gordon

1998-01-01T23:59:59.000Z

170

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation Hydrology and Earth System Sciences, 8(5), 959972 (2004) EGU  

E-Print Network (OSTI)

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation 959 Hydrology and Earth System Sciences, 8(5), 959972 (2004) © EGU Strontium isotope geochemistry for corresponding author : p.negrel@brgm.fr Abstract This study presents strontium isotope and major ion data

Paris-Sud XI, Université de

171

The floodplain large-wood cycle hypothesis: A mechanism for the physical and biotic structuring of temperate forested alluvial valleys in the North Pacific  

E-Print Network (OSTI)

species Biogeomorphology River restoration A `floodplain large-wood cycle' is hypothesized as a mechanism for generating landforms and influencing river dynamics in ways that structure and maintain riparian and aquatic ecosystems of forested alluvial river valleys of the Pacific coastal temperate rainforest of North America

Montgomery, David R.

172

Hydraulic back-flood model for the archaeological stratigraphy of the Connecticut River Alluvial Lowland, central Connecticut, USA  

Science Journals Connector (OSTI)

Abstract State-mandated archaeological investigations associated with urban renewal in downtown Hartford led to the development of a mechanistic model for Holocene floodplain sedimentation in central Connecticut. Our model is based on: historic flood hydrometeorology and geomorphologic mapping; the lithologic, magnetic, pollen, and archaeological stratigraphy exposed in sixteen deep boreholes and 24 hydraulic push cores; the chronology provided by sixteen AMS radiocarbon ages, and diagnostic historic artifacts ranging from 10,030 cal BP to the present. We conclude that the alluvial stratigraphy in this part of the lowland resulted from bottom-up changes in hydraulic ponding at a bedrock outlet, rather than from top-down responses of the watershed to changes in climate, vegetation or human activity. Our model provides a geologically based time-space framework for the distribution of known archaeological sites, and carries implications for future research.

Robert M. Thorson; Daniel Forrest; Brian Jones

2014-01-01T23:59:59.000Z

173

Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions  

E-Print Network (OSTI)

and Van Der Sande, 1985; Lisle et al., 2001] or dynamic wave [Ching and Cheng, 1964; Vreugdenhil and de Vries, 1973; de Vries, 1975; Ribberink and Van Der Sande, 1985; Pianese, 1994; Lyn and Altinakar, 2002; Cao and Carling, 2003; Singh et al., 2004... [Ching and Cheng, 1964; Vreugdenhil and de Vries,1973;Mahmood,1975;Pianese,1994;Cao and Carling, 2003]. Note that equations (1) and (2) are for equilibrium conditions, where the entrainment rate (E z )is equal to the deposition rate (D c ) (i.e., E z = D...

Tayfur, Gokmen; Singh, Vijay P.

2007-12-27T23:59:59.000Z

174

LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BNL  

SciTech Connect

5098-LR-01-0 -LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BROOKHAVEN NATIONAL LABORATORY

P.C. Weaver

2010-10-22T23:59:59.000Z

175

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis.  

E-Print Network (OSTI)

??The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has… (more)

Kimla, John

2010-01-01T23:59:59.000Z

176

Stay Cool for Less Money with a Ceiling Fan | Department of Energy  

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

Stay Cool for Less Money with a Ceiling Fan Stay Cool for Less Money with a Ceiling Fan Stay Cool for Less Money with a Ceiling Fan May 12, 2009 - 5:00am Addthis Allison Casey Senior Communicator, NREL After a few late snowstorms here in Colorado, I am more than ready to turn off the heat and enjoy some warm spring weather. We haven't had any heat waves here yet, but many of you have already been trying to stay cool; our friends in Washington, D.C. were sweltering (by comparison) in 90+°F weather just a couple short weeks ago! Whether you're still anticipating snow or have broken out the sandals and tank tops, you may be starting to think about keeping your summer cooling costs down. One easy way to keep cool while saving money is using a ceiling fan. Did you know that a ceiling fan could allow you to raise the thermostat

177

Sandy Depositional Systems  

Science Journals Connector (OSTI)

Why is the study of sandy depositional systems central to the understanding of sand and sandstone? From earliest times geologists have wanted to know where and under what conditions a sandstone was deposited—t...

F. J. Pettijohn; Paul Edwin Potter; Raymond Siever

1987-01-01T23:59:59.000Z

178

Performance analysis of supply and return fans for HVAC systems under different operating strategies of economizer dampers  

Science Journals Connector (OSTI)

HVAC systems and associated equipment consume a relatively large fraction of total building energy consumption, a significant portion of which is attributed to fan operation. The operation of economizer dampers when installed can cause high energy consumption in fans if they are not functioning in proper and optimal manner. This will mainly be due to the potential high pressure drops through those dampers and associated high total pressures that should be developed by supply and/or return fans. It is then necessary to ensure that a proper strategy to operate optimally the economizer dampers is implemented with minimum fan energy use. The paper examines several operation strategies of the economizer dampers and investigates their effects on the performance of both the supply and return fans in HVAC system. It also discusses a new operating strategy for economizer dampers that can lead to lower fan energy use. The strategies are evaluated by simulations for a typically existing HVAC system. Several factors such as the building locations, system characteristics, resistance in the duct where the dampers are installed, supply air temperature and economizer control, and minimum ventilation requirements are also considered during the evaluations. The results show that the way of the economizer dampers been controlled has a significant effect on fan performance and its energy use. The proposed strategy if properly implemented can provide fan energy saving in the range of 5–30%, depending mainly on the number of hours when the system operates in the free cooling mode, damper characteristics, and minimum outdoor air.

Nabil Nassif

2010-01-01T23:59:59.000Z

179

Gas-dynamic characteristics of a noise and heat insulating jacket on a gas turbine in a gas pumping plant on emergency disconnection of the cooling fans  

Science Journals Connector (OSTI)

The paper discusses the operation of a gas turbine plant (GTP) when the fans in ... NHJ by a fan. The operation of gas-pumping plant involves working with brief (10 ... describing the motion of an ideal thermally...

P. V. Trusov; D. A. Charntsev; I. R. Kats…

2008-09-01T23:59:59.000Z

180

Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part 2: Case Demonstration for a Typical Climate System  

E-Print Network (OSTI)

In Part 1 of this paper, the theoretical models, integrating the fan airflow, fan head, air leakage factors, are developed to analyze the impacts of the static pressure reset on both pressure dependent and pressure independent terminal boxes...

Liu, M.; Zheng, K.; Wu, L.; Wang, Z.; Johnson, C.

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Three-dimensional lithofacies variations in hyaloclastite deposits  

Science Journals Connector (OSTI)

Analysis of the spatial lithofacies variability within lava-fed delta formations in southern Iceland has revealed complex three-dimensional volcanic architectures in hyaloclastite deposits in non-glacial settings. Two depositional environments are studied, (a) lava entering a marine embayment (Stóri-Nupur) and; (b) lava advancing into a body of water of the flanks of a Surtseyan cone (Hjörleifshöfði). Interaction between environmental factors such as shoreline geomorphology, water depth, wave energy levels, the nature of the lava transport system, lava supply rate all affect the resulting lava deltas creating complex lithofacies arrangements and stacking patterns. Recognised here are two types of hyaloclastite deltas. One of syn-sedimentary origin (Hjörleifshöfði) and one derived from primary fragmentation processes (Stóri-Nupur). Syn-sedimentary systems are dominated by destabilisation of the hyaloclastite pile leading to reworking downslope and share similarities to alluvial delta systems. Conversely, primary fragmented systems are controlled by waxing and waning cycles in volcanic effusivity whereby the hyaloclastite unit recorded is not the product of one lava flow rather than one eruptive event.

T.J. Watton; D.A. Jerram; T. Thordarson; R.J. Davies

2013-01-01T23:59:59.000Z

182

CleanRooms Magazine, November 2006 Development of a Fan-Filter Unit Test Standard, Laboratory  

E-Print Network (OSTI)

LBNL-61750 CleanRooms Magazine, November 2006 Development of a Fan-Filter Unit Test Standard and provide particle filtration control for clean environments. Much of the energy in cleanrooms (and-filter units that are typically located in the ceiling (25-100% coverage) of cleanroom controlled environments

183

Quantitative characteristics of sinuous distributary channels on the Amazon Deep-Sea Fan  

Science Journals Connector (OSTI)

...hydrodynamic parameters somewhat similar to those encountered in sub- aerial rivers (Damuth and others, 1983a, and unpub. data). Clearly...submarine fan channel/levee systems: Geo-Marine Letters. Fukushima, Y., Parker, G and Pantin, H. M., 1985, Prediction...

184

Challenges and Prospects of Nanopillar-Based Solar Cells Zhiyong Fan1,2,3  

E-Print Network (OSTI)

], and solar energy into electricity [20 33]. In this review article, we summarize the continuous progress own advantages and disadvantages. The device structures utilizing radial NPL junctions (i.e., coreChallenges and Prospects of Nanopillar-Based Solar Cells Zhiyong Fan1,2,3 , Daniel J. Ruebusch1

Javey, Ali

185

Laboratory Evaluation of Fan-filter Units' Aerodynamic and Energy Performance  

E-Print Network (OSTI)

Laboratory Evaluation of Fan-filter Units' Aerodynamic and Energy Performance Tengfang Xu, Lawrence The paper discusses the benefits of having a consistent testing method to characterize aerodynamic applications. Optimizing aerodynamic performance in air recirculation systems appears to be one of useful

186

Performance characteristics of a low pressure cyclone for axial-flow fan exhausts  

E-Print Network (OSTI)

pneumatically convey lint fiber to the first-stage lint cleaner. typically, covered condenser drums with fine mesh screens are the abatement devices used on a)axial-flow fan exhausts. A new ID2D Low Pressure Cyclone (LPC) was developed that could be used...

Simpson, Shay Lynn

2012-06-07T23:59:59.000Z

187

Sentiment-Oriented Contextual Advertising Teng-Kai Fan Chia-Hui Chang  

E-Print Network (OSTI)

Sentiment-Oriented Contextual Advertising Teng-Kai Fan Chia-Hui Chang Department of Computer 320, R.O.C. tengkaifan@gmail.com chia@csie.ncu.edu.tw Abstract Web advertising (Online advertising), a form of advertising that uses the World Wide Webtoattractcustomers

Chang, Chia-Hui

188

Sentiment-Oriented Contextual Advertising Teng-Kai Fan, Chia-Hui Chang  

E-Print Network (OSTI)

Sentiment-Oriented Contextual Advertising Teng-Kai Fan, Chia-Hui Chang Department of Computer@gmail.com, chia@csie.ncu.edu.tw Abstract. Web advertising (Online advertising), a form of advertising that uses. This paper addresses the mechanism of Content- Oriented advertising (Contextual advertising), which refers

Chang, Chia-Hui

189

QPIAD: Query Processing over Incomplete Autonomous Databases Hemal Khatri Jianchun Fan Yi Chen Subbarao Kambhampati  

E-Print Network (OSTI)

QPIAD: Query Processing over Incomplete Autonomous Databases Hemal Khatri Jianchun Fan Yi Chen.khatri,jcf,yi,rao}@asu.edu Abstract Incompleteness due to missing attribute values (aka "null values") is very common in autonomous missing attributes, even if they wind up being rel- evant to a user query. Ideally we would like

Chen, Yi

190

Comparison of test particle acceleration in torsional spine and fan reconnection regimes  

SciTech Connect

Magnetic reconnection is a common phenomenon taking place in astrophysical and space plasmas, especially in solar flares which are rich sources of highly energetic particles. Torsional spine and fan reconnections are important mechanisms proposed for steady-state three-dimensional null-point reconnection. By using the magnetic and electric fields for these regimes, we numerically investigate the features of test particle acceleration in both regimes with input parameters for the solar corona. By comparison, torsional spine reconnection is found to be more efficient than torsional fan reconnection in an acceleration of a proton to a high kinetic energy. A proton can gain as high as 100?MeV of relativistic kinetic energy within only a few milliseconds. Moreover, in torsional spine reconnection, an accelerated particle can escape either along the spine axis or on the fan plane depending on its injection position. However, in torsional fan reconnection, the particle is only allowed to accelerate along the spine axis. In addition, in both regimes, the particle's trajectory and final kinetic energy depend on the injection position but adopting either spatially uniform or non-uniform localized plasma resistivity does not much influence the features of trajectory.

Hosseinpour, M., E-mail: hosseinpour@tabrizu.ac.ir; Mehdizade, M.; Mohammadi, M. A. [Plasma Physics Department, University of Tabriz, Tabriz (Iran, Islamic Republic of)

2014-10-15T23:59:59.000Z

191

Power Aware Page Allocation Alvin R. Lebeck, Xiaobo Fan, Heng Zeng, Carla Ellis  

E-Print Network (OSTI)

Power Aware Page Allocation Alvin R. Lebeck, Xiaobo Fan, Heng Zeng, Carla Ellis Department of Computer Science Duke University alvy@cs.duke.edu http://www.cs.duke.edu/~alvy Milly Watt #12;Power Aware Page Allocation 2© Alvin R. Lebeck, 2000 Power Aware System Design ?Traditional system design targets

Ellis, Carla

192

Effect on energy use and greenhouse microclimate through fan motor control by variable frequency drives  

Science Journals Connector (OSTI)

A comparison was conducted between ON–OFF and variable frequency drive (VFD) systems to control greenhouse ventilation fans. The study aimed to determine the effect of each system on the energy consumption and resulting greenhouse microclimate. The experiments were conducted in a commercial size greenhouse in which pepper was grown. To check the performance of the fan that was controlled by a VFD system, it was installed in a test facility and operated under several rotation speeds. At each speed of rotation, the static pressure on the fan was changed and parameters, such as electricity consumption and air flow rate, were measured. Reducing the fan speed with the VFD system resulted in reductions in the air flow rate through the greenhouse and energy consumption, the latter being much more significant. The study showed that VFD control can reduce electricity consumption compared with ON–OFF operation by an amount that depends on the weather. In the present study, the average energy consumption with the VFD control system over a period of one month, was about 0.64 of that with an ON–OFF system. The average greenhouse daily air temperatures and humidity ratios obtained with each control system between 0700 and 1800 were nearly equal during that month. The results obtained in the greenhouse further show that the VFD system has a greater potential than the ON–OFF to reduce the range of amplitude variations in the air temperature and humidity ratio within the greenhouse.

Meir Teitel; Yun Zhao; Moti Barak; Eli Bar-lev; David Shmuel

2004-01-01T23:59:59.000Z

193

Single Molecule Electrochemistry Fu-Ren F. Fan, Juhyoun Kwak, and Allen J. Bard*,  

E-Print Network (OSTI)

Single Molecule Electrochemistry Fu-Ren F. Fan, Juhyoun Kwak, and Allen J. Bard*, Contribution from here electrochemical studies at the level of single molecules and small numbers of molecules. The detection of single molecules, their characterization, and their chemical and physical manipulation have

Kwak, Juhyoun

194

Energy Conservation Program for Consumer Products: Test Procedures for Residential Furnaces Fans; Correction  

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

On January 3, 2014 the U.S. Department of Energy (DOE) published a final rule in the Federal Register that established the test procedure for residential furnace fans. Due to drafting errors, that document inadvertently removed necessary incorporation by reference material in the Code of Federal Regulations (CFR). This final rule rectifies this error by once again adding the removed material.

195

L1 Adaptive Control of Hysteresis in Smart Materials Xiang Fan and Ralph C. Smith  

E-Print Network (OSTI)

L1 Adaptive Control of Hysteresis in Smart Materials Xiang Fan and Ralph C. Smith Center 27695 ABSTRACT Smart materials display coupling between electrical, magnetic, thermal and elastic inherent to smart materials presents a challenge in control of these actuators/sensors. Inverse

196

Development of models for series and parallel fan variable air volume terminal units  

E-Print Network (OSTI)

for the series and parallel units, with coefficients varying by size and manufacturer. Statistical modeling utilized SAS software (2002). Fan power and airflow data were collected at downstream static pressures over a range from 0.1 to 0.5 in. w.g. (25 to 125 Pa...

Furr, James C., Jr

2007-09-17T23:59:59.000Z

197

Holocene valley-floor deposition and incision in a small drainage basin in western Colorado, USA  

Science Journals Connector (OSTI)

The valley floor of a 33.9 km2 watershed in western Colorado experienced gradual sedimentation from before ? 6765 to ? 500 cal yr BP followed by deep incision, renewed aggradation, and secondary incision. In contrast, at least four terraces and widespread cut-and-fill architecture in the valley floor downstream indicate multiple episodes of incision and deposition occurred during the same time interval. The upper valley fill history is atypical compared to other drainages in the Colorado Plateau. One possible reason for these differences is that a bedrock canyon between the upper and lower valley prevented headward erosion from reaching the upper valley fill. Another possibility is that widespread, sand-rich, clay-poor lithologies in the upper drainage limited surface runoff and generally favored alluviation, whereas more clay-rich lithologies in the lower drainage resulted in increased surface runoff and more frequent incision. Twenty-two dates from valley fill charcoal indicate an approximate forest fire recurrence interval of several hundred years, similar to that from other studies in juniper–piñon woodlands. Results show that closely spaced vertical sampling of alluvium in headwater valleys where linkages between hillslope processes and fluvial activity are relatively direct can provide insight about the role of fires in alluvial chronologies of semi-arid watersheds.

Lawrence S. Jones; Margaret Rosenburg; Maria del Mar Figueroa; Kathleen McKee; Ben Haravitch; Jenna Hunter

2010-01-01T23:59:59.000Z

198

direct_deposit_111609  

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

PROTECT YOUR BANKING INFORMATION: PROTECT YOUR BANKING INFORMATION: DO NOT complete this form until you are ready to submit it to the Payroll Department. DIRECT DEPOSIT REQUEST Directions: 1. Provide required information neatly, legibly; 2. If Checking Account Direct Deposit, include a voided check. a. DO NOT submit a deposit slip! 3. If Savings Account Direct Deposit, include a copy of savings card. 4. Sign this form; 5. Inter-office mail it to Craft Payroll at "P238." DIRECT DEPOSITION AUTHORIZATION I hereby authorize Los Alamos National Laboratory, hereinafter called The Laboratory, to initiate credit entries and, if necessary, debit entries and adjustments for any credit entries in error to my account listed on this form. If deposit is for:

199

Spores from Devonian Deposits  

Science Journals Connector (OSTI)

... IN a well-illustrated paper on "Spores from Devonian Deposits, Mimerdalen, Spitsbergen" (Norsk. Polarinstitutt Skrifter, No. 132, 1964), Jorunn Os Vigran deals with the dispersed ...

1965-06-05T23:59:59.000Z

200

EMSL - ion deposition  

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

deposition en Physical Properties of Ambient and Laboratory-Generated Secondary Organic Aerosol. http:www.emsl.pnl.govemslwebpublicationsphysical-properties-ambient-and-labora...

Note: This page contains sample records for the topic "alluvial fan deposits" 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

EMSL - Deposition and Microfabrication  

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

ion beam for nanolithography and deposition and manipulation of structures at the nano scale* Microfabrication suite for designing and etching complex patterns into varied...

202

ALLUVIAL SCRUB VEGETATION IN COASTAL SOUTHERN CALIFORNIA1 Ted L. Hanes, Richard D. Friesen, and Kathy Keane2  

E-Print Network (OSTI)

coastal and desert dunes, coastal val- leys and foothills, interior mountains and desert flats. Holland. It grows on sandy, rocky alluvia deposited by streams that experience infrequent episodes of severe

Standiford, Richard B.

203

Reservoir description of a sand-rich submarine fan complex for a steamflood project: upper Miocene Potter sandstone, North Midway Sunset field, California  

SciTech Connect

Nearly 650 m of cores from the upper Miocene Potter sandstone in Mobil's Alberta/Shale property, North Midway Sunset field, California, were examined to determine depositional facies, sand-body geometry, and reservoir quality for a proposed steamflood project. The Potter represents a sand-rich submarine fan complex with braided-channel, meandering-channel, levee, and crevasse-splay facies. The braided-channel facies (gravel and coarse sand) is thick (up to 100 m), sheetlike (> 500 m wide), and highly permeable (10,000 + md). The meandering-channel facies (coarse to medium sand) is up to 20 m thick, over 400 m long, lenticular in geometry, and exhibits an upward decrease in permeability (e.g., 9000 to 500 md) related to grain size that fines upward. The levee facies (in bioturbated sand) is up to 21 m thick, shows variable geometry, and is generally low in permeability (100-1500 md). The crevasse splay (medium sand) is up to 12 m thick, sheetlike (> 300 m wide), and shows moderately high permeability (2000-8000 md). The braided-channel facies was a product of density-modified grain flows, and the remaining three facies were deposited by turbidity currents. Steam flooding of the Potter reservoir should perform extremely well because the entire reservoir is composed of relatively clean sand and the reservoir lacks both horizontal and vertical permeability barriers.

Shanmugam, G.; Clayton, C.A.

1989-03-01T23:59:59.000Z

204

Solution deposition assembly  

DOE Patents (OSTI)

Methods and devices are provided for improved deposition systems. In one embodiment of the present invention, a deposition system is provided for use with a solution and a substrate. The system comprises of a solution deposition apparatus; at least one heating chamber, at least one assembly for holding a solution over the substrate; and a substrate curling apparatus for curling at least one edge of the substrate to define a zone capable of containing a volume of the solution over the substrate. In another embodiment of the present invention, a deposition system for use with a substrate, the system comprising a solution deposition apparatus; at heating chamber; and at least assembly for holding solution over the substrate to allow for a depth of at least about 0.5 microns to 10 mm.

Roussillon, Yann; Scholz, Jeremy H; Shelton, Addison; Green, Geoff T; Utthachoo, Piyaphant

2014-01-21T23:59:59.000Z

205

Jasper: the Art of Exploration in Greedy Best First Search Fan Xie and Martin Mller and Robert Holte  

E-Print Network (OSTI)

Jasper: the Art of Exploration in Greedy Best First Search Fan Xie and Martin Müller and Robert restarts and randomization for better quality search. Jasper is a satisficing planner that builds on LAMA

Müller, Martin

206

Finding the largest low-rank clusters with Ky Fan 2-k-norm and l1-norm  

E-Print Network (OSTI)

Mar 24, 2014 ... Abstract: We propose a convex optimization formulation with the Ky Fan 2-k-norm and l1-norm to fi nd k largest approximately rank-one ...

Xuan Vinh Doan

2014-03-24T23:59:59.000Z

207

Memorandum Memorializing Ex Parte Communication, DOE impending determination of coverage for commercial and industrial fans, blowers, and fume hoods.  

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

The meeting was requested by AMCA International to introduce the association’s leadership, standards, and experience in developing fan standards to DOE; to learn more about the DOE process for...

208

2014-09-19 Issuance: Energy Conservation Program for Consumer Products: Test Procedure for Ceiling Fans;NOPR  

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

This document is a pre-publication Federal Register notice of proposed rulemaking regarding Energy Conservation Program for Consumer Products: Test Procedure for Ceiling Fans, as issued by the Deputy Assistant Secretary for Energy Efficiency on September 19, 2014.

209

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis  

E-Print Network (OSTI)

The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has focused on the creation of reset strategies depending on specific system features...

Kimla, John

2010-07-14T23:59:59.000Z

210

Science on Saturday attracts science fans of all ages | Princeton Plasma  

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

Science on Saturday attracts science fans of all ages Science on Saturday attracts science fans of all ages By Jeanne Jackson DeVoe January 28, 2013 Tweet Widget Facebook Like Google Plus One Joshua E. G. Peek, a Hubble Fellow at Columbia University's Department of Astronomy and son of PPPL physicist and former director Robert Goldston, discusses "Outer Space!" (Photo by Elle Starkman/PPPL Office of Communications) Joshua E. G. Peek, a Hubble Fellow at Columbia University's Department of Astronomy and son of PPPL physicist and former director Robert Goldston, discusses "Outer Space!" Gallery: High school senior Varuni Bewtra comes to the lectures to learn about possible careers in science. (Photo by Photo by Jeanne Jackson DeVoe/PPPL Office of Communications) High school senior Varuni Bewtra comes to the lectures to learn about

211

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

SciTech Connect

The distal fan margin in the northeast portion of the Yowlumne field contains significant reserves but is not economical to develop using vertical wells. Numerous interbedded shales and deteriorating rock properties limit producibility. In addition, extreme depths (13,000 ft) present a challenging environment for hydraulic fracturing and artificial lift. Lastly, a mature waterflood increases risk because of the uncertainty with size and location of flood fronts. This project attempts to demonstrate the effectiveness of exploiting the distal fan margin of this slope-basin clastic reservoir through the use of a high-angle well completed with multiple hydraulic-fracture treatments. The combination of a high-angle (or horizontal) well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. The equivalent production rate and reserves of three vertical wells are anticipated at one-half to two-thirds the cost.

Mike L. Laue

1997-05-30T23:59:59.000Z

212

Continuous Commissioning® of a Single Fan Dual Duct System in an Office Building  

E-Print Network (OSTI)

Continuous Commissioning ® of a Single Fan Dual Duct System in an Office Building D. Dong M. Liu, Ph.D., P.E Jinrong Wang, P.E Energy Systems Laboratory Energy Systems Laboratory... of AHU control sequences can significantly improve building comfort and reduce HVAC energy cost. REFERENCES 1. Liu, M., Y. Zhu, and D. E. Claridge, “Use of EMCS Recorded Data to Identify Potential Savings Due to Improved HVAC Operations...

Dong, D.; Liu, M.

2005-01-01T23:59:59.000Z

213

A study of the design procedure and the performance characteristics of axial exhaust fans  

E-Print Network (OSTI)

of the requirements for the degxee of %%STER OF SCIENCE IN NECHM3EEL ENGINEERIMG August, 19/9 COBTEEITS Intoroduct'o9. on o e e ~ ~ ~ ~ ~ e ~ e ~ ~ ~ ~ ~ 1 Ia Derivation of Fan Lass ~ ~ ~ ~ ~ ~ ~ ~ ~ 2 XI Description of Test Apparatus . . . . . ~. . . 7 XII... by s reversible electric motor operated by a reversing motor control switch, which is conveniently located near the Inclined manometer connected, to the pitot tube which measures the static pressure inside the plenum chamber. The followiug equipment composes...

Barker, Gilbert Hamilton

2012-06-07T23:59:59.000Z

214

Perspectives on Deposition Velocity  

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

Deposition Deposition Velocity ... Going down the rabbit hole to explain that sinking feeling Brian DiNunno, Ph.D. Project Enhancement Corporation June 6 th , 2012 Discussion Framework ï‚— Development of the HSS Deposition Velocity Safety Bulletin ï‚— Broader discussion of appropriate conservatism within dispersion modeling and DOE-STD-3009 DOE-STD-3009 Dose Comparison "General discussion is provided for source term calculation and dose estimation, as well as prescriptive guidance for the latter. The intent is that calculations be based on reasonably conservative estimates of the various input parameters." - DOE-STD-3009, Appendix A.3 DOE-STD-3009 Dispersion

215

EMSL: Capabilities: Deposition and Microfabrication  

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

Deposition and Microfabrication Deposition and Microfabrication Additional Information Meet the Deposition and Microfabrication Experts Related EMSL User Projects Deposition and Microfabrication Tools are Applied to all Science Themes Deposition and Microfabrication brochure Designed to augment research important to a variety of disciplines, EMSL's Deposition and Microfabrication Capability tackles serious scientific challenges from a microscopic perspective. From deposition instruments that emphasize oxide films and interfaces to a state-of-the-art microfabrication suite, EMSL has equipment to tailor surfaces, as diverse as single-crystal thin films or nanostructures, or create the microenvironments needed for direct experimentation at micron scales. Users benefit from coupling deposition and microfabrication applications

216

Electrophoretic deposition of biomaterials  

Science Journals Connector (OSTI)

...Wilson 2003). The use of citric acid as a dispersant allowed the deposition of thin...poly(lactic-co-glycolic acid) (PLGA) nanoparticles embedded...stent for local drug delivery. Polyacrylic acid was used as surfactant because...

2010-01-01T23:59:59.000Z

217

Vacuum arc deposition devices  

SciTech Connect

The vacuum arc is a high-current, low-voltage electrical discharge which produces a plasma consisting of vaporized and ionized electrode material. In the most common cathodic arc deposition systems, the arc concentrates at minute cathode spots on the cathode surface and the plasma is emitted as a hypersonic jet, with some degree of contamination by molten droplets [known as macroparticles (MPs)] of the cathode material. In vacuum arc deposition systems, the location and motion of the cathode spots are confined to desired surfaces by an applied magnetic field and shields around undesired surfaces. Substrates are mounted on a holder so that they intercept some portion of the plasma jet. The substrate often provides for negative bias to control the energy of depositing ions and heating or cooling to control the substrate temperature. In some systems, a magnetic field is used to guide the plasma around an obstacle which blocks the MPs. These elements are integrated with a deposition chamber, cooling, vacuum gauges and pumps, and power supplies to produce a vacuum arc deposition system.

Boxman, R.L.; Zhitomirsky, V.N. [Electrical Discharge and Plasma Laboratory, Faculty of Engineering, Tel Aviv University, P.O. Box 39040, Tel Aviv 69978 (Israel)

2006-02-15T23:59:59.000Z

218

Instrument Series: Deposition and Microfabrication  

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

Deposition and Microfabrication Deposition and Microfabrication Sputter Deposition System Only available at EMSL, the Discovery ® Deposition System has been customized to be a fully automated multi-functional "hybrid" instrument with several modes for thin film processing, including multi-target sputtering, effusion cell deposition, electron beam deposition, and in-situ reflection high-energy electron diffraction (RHEED) materials characterization. Unlike most systems, the Discovery ® Deposition System's unique configuration offers operational flexibility, efficiency, and control, allowing a range of applications and materials to be processed simultaneously. Because it is software controlled, users can provide their own "recipes" and have a complete log of what happens throughout the

219

Cathodic Arc Plasma Deposition  

Office of Scientific and Technical Information (OSTI)

Cathodic Arc Plasma Deposition Cathodic Arc Plasma Deposition André Anders Lawrence Berkeley National Laboratory, University of California, 1 Cyclotron Road, Mailstop 53, Berkeley, California 94720 aanders@lbl.gov Abstract Cathodic arc plasma deposition is one of oldest coatings technologies. Over the last two decades it has become the technology of choice for hard, wear resistant coatings on cutting and forming tools, corrosion resistant and decorative coatings on door knobs, shower heads, jewelry, and many other substrates. The history, basic physics of cathodic arc operation, the infamous macroparticle problem and common filter solutions are reviewed. Cathodic arc plasmas stand out due to their high degree of ionization, with important consequences for film nucleation, growth, and efficient utilization of substrate bias. The

220

Building America Case Study: Evaluating Through-Wall Air Transfer Fans, Pittsburgh, Pennsylvania (Fact Sheet)  

SciTech Connect

In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate heating, ventilating, and air conditioning (HVAC) distribution systems during heating, cooling, and midseason conditions. Four air-based HVAC distribution systems were assessed:-a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, a system with transfer fans to the bedrooms, and a system with no ductwork to the bedrooms. The relative ability of each system was considered with respect to relevant Air Conditioning Contractors of America and ASHRAE standards for house temperature uniformity and stability, respectively.

Not Available

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

2014-10-27 Issuance: Test Procedure for Ceiling Fan Light Kits; Notice of Proposed Rulemaking  

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

This document is a pre-publication Federal Register notice of proposed rulemaking regarding test procedures for ceiling fan light kits, as issued by the Deputy Assistant Secretary for Energy Efficiency on October 27, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

222

2014-06-25 Issuance: Energy Conservation Standards for Residential Furnace Fans; Final Rule  

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

This document is a pre-publication Federal Register final rule regarding energy conservation standards for furnace fans, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on June 25, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

223

Measurable energy savings of installing variable frequency drives for cooling towers’ fans, compared to dual speed motors  

Science Journals Connector (OSTI)

Abstract In recent years the building management system (BMS) controllers have been used to control the operation of heating, ventilation, and air conditioning system in addition to lighting and some electrical equipment in order to save energy. In the water cooled system, the BMS controls the operation process of the cooling towers (CTs) fans of dual speed motors to maintain a constant leaving water temperature for different cooling loads and different ambient wet bulb temperature (WBT). This paper presents the effect of installing variable frequency drives (VFDs) for \\{CTs\\} fans in Kuwait during summer season on energy savings compared to dual speed control. The results have shown that with VFD mode, the reduction in water consumption was over 13% compared to the commonly used dual speed mode. More importantly, the combined power for the chillers and the \\{CTs\\} fans for the same amount of cooling produced were reduced by 5.8% in the VFD mode.

E. Al-Bassam; R. Alasseri

2013-01-01T23:59:59.000Z

224

Duplex-like structures in submarine fan channels, Ouachita Mountains, Arkansas  

SciTech Connect

Submarine fan channel sequences of the Jackfork Formation (Lower Pennsylvanian) at DeGray Dam section in the Ouachita Mountains, Arkansas, contain discrete units (10-75 cm thick) with moderately dipping (25/sup 0/-40/sup 0/), sigmoidal imbricate slices. Adjacent units with opposing imbricate slices are common. The sigmoidal structures are similar in geometry to a tectonic feature known as a duplex. A tectonic origin of sigmoidal structures, however, seems unlikely because opposing directions of imbrication in adjacent units would require an unrealistic tectonic movement history for the area. The authors propose that the Jackfork sigmoidal structures were formed by a process kinematically similar to that responsible for generating duplex structures. Unlike tectonic duplexes, however, the sigmoidal structures were formed by soft-sediment deformation of sand and mud layers as high-energy sediment gravity flows glided over these layers. Sediment gravity flows, responsible for forming the sigmoidal deformation, were probably generated by slumping of adjacent channel walls. Dip direction of sigmoidal slices is perpendicular to channel axes. Thus, recognition of sigmoidal deformation structures may be useful in inferring the trend of channels in ancient submarine fan complexes.

Shanmugam, G.; Moiola, R.J.; Sales, J.K.

1988-03-01T23:59:59.000Z

225

In situ measurement of noise of induced?draft fans in a power plant stack  

Science Journals Connector (OSTI)

Induced?draft fans are commonly the most annoying sources of community noise associated with fossil?fuel power plants. The low frequency tones generated by the fans are usually radiated to the community from the top of a tall stack. Measurements of the tone levels in the community are hampered by environmental effects such as strong wind and thermal gradients. Measurements within the flue gas ducting are therefore desirable. However the flue gas environment is hostile to microphones due to elevated temperatures particulates and the presence of gas flow. The interpretation of in?duct data is complicated by the possible effects of standing waves and cross modes in the duct and turbulence generated noise. The recent installation of a dissipative?reactive muffler in a coal?fired plant offered the opportunity to (1) investigate techniques for measuring noise in stacks (2) evaluate the performance of the muffler under operating conditions and (3) check the in?stack results against limited farfield data. Good agreement was obtained between reductions in tone levels measured in the stack and in the community.

A. R. Thompson; M. A. Theobald; Alex Simich

1979-01-01T23:59:59.000Z

226

Toward Green Systems for Cleanrooms: Energy Efficient Fan-filter Units Ming-Shan Jeng, Industrial Technology Research Institute, msjeng@itri.org.tw  

E-Print Network (OSTI)

Toward Green Systems for Cleanrooms: Energy Efficient Fan-filter Units Ming-Shan Jeng, Industrial results of laboratory-measured performance of fan-filter units (FFUs) used for cleanrooms. A total for many cleanroom applications. ) 2004 Semiconductor Equipment and Materials International Keywords

227

Hybrid Thin Film Deposition System | EMSL  

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

Hybrid Thin Film Deposition System Hybrid Thin Film Deposition System Only available at EMSL, the Discovery Deposition System has been customized to be a fully automated...

228

y 1000km of high resolution sleeve-gun array transects on the North Sza Fan, located at tbe mouth orwegian Channel, reveal three domina tyles of sedimentation within a thick  

E-Print Network (OSTI)

y 1000km of high resolution sleeve-gun array transects on the North Sza Fan, located at tbe mouth the lution data across the fan other than conventional he seismic source was an arra nstruments 40 in3 sleeve-guns along the fan axis. These data were shot with the same sleeve-gun array but recorded digitally via a 144

229

Miocene fluvial-tidal sedimentation in a residual forearc basin of the Northeastern Pacific Rim: Cook Inlet, Alaska case study  

SciTech Connect

Cook Inlet in southern Alaska represents a Cenozoic residual forearc basin in a convergent continental margin, where the Pacific Plate is being subducted beneath the North American Plate. This basin accumulated the >6,700-m-thick, mainly nonmarine, Eocene-Pliocene Kenai Group. These rocks contain biogenic coal-bed methane estimated to be as high as 245 TCF. Lignites to subbituminous coals with subsurface R{sub o} ranging from 0.38 to 0.73 percent and the stage of clay-mineral diagenesis and expandibility indicate a thermally {open_quotes}cool{close_quotes} basin. Miocene Tyonek and Beluga Formations compose 65 percent (>4,300 m thick) of the Kenai Group. The Tyonek includes conglomeratic sandstones, siltstones, mudstones, coals, and carbonaceous shales, interpreted as braided- stream deposits. These fluvial deposits are interbecided with burrowed, lenticular, and flaser-bedded sandstones, siltstones, and mudstones, interpreted as tidal deposits. Tyonek framework conglomerates formed in wet alluvial fans incised on paleovalleys of the Chugach terrane. Coal-forming mires are well developed on abandoned braided-stream deposits. Tyonek drainages formed in high-gradient alluvial plains inundated by tides similar to environments in the modern upper Cook Inlet. The upper Miocene Beluga consists of sandstones, siltstones, mudstones, carbonaceous shales, and coals deposited in meandering (low sinuosity) and anastomosed fluvial systems. These fluvial deposits alternated vertically with deposits of coal-forming mires. The Beluga drainages formed in low-gradient alluvial plains. The high-gradient Tyonek alluvial plain was probably controlled by provenance uplift and eustatic change, whereas the low-gradient Beluga alluvial plain was influenced by subdued provenance uplift and rapid basin subsidence. Rapid sedimentation on both these low- and high-gradient alluvial plains, which kept up with subsidence, produced a thermally {open_quotes}cool{close_quotes} basin.

Stricker, G.D.; Flores, R.M. [Geological Survey, Denver, CO (United States)

1996-12-31T23:59:59.000Z

230

Miocene fluvial-tidal sedimentation in a residual forearc basin of the Northeastern Pacific Rim: Cook Inlet, Alaska case study  

SciTech Connect

Cook Inlet in southern Alaska represents a Cenozoic residual forearc basin in a convergent continental margin, where the Pacific Plate is being subducted beneath the North American Plate. This basin accumulated the >6,700-m-thick, mainly nonmarine, Eocene-Pliocene Kenai Group. These rocks contain biogenic coal-bed methane estimated to be as high as 245 TCF. Lignites to subbituminous coals with subsurface R[sub o] ranging from 0.38 to 0.73 percent and the stage of clay-mineral diagenesis and expandibility indicate a thermally [open quotes]cool[close quotes] basin. Miocene Tyonek and Beluga Formations compose 65 percent (>4,300 m thick) of the Kenai Group. The Tyonek includes conglomeratic sandstones, siltstones, mudstones, coals, and carbonaceous shales, interpreted as braided- stream deposits. These fluvial deposits are interbecided with burrowed, lenticular, and flaser-bedded sandstones, siltstones, and mudstones, interpreted as tidal deposits. Tyonek framework conglomerates formed in wet alluvial fans incised on paleovalleys of the Chugach terrane. Coal-forming mires are well developed on abandoned braided-stream deposits. Tyonek drainages formed in high-gradient alluvial plains inundated by tides similar to environments in the modern upper Cook Inlet. The upper Miocene Beluga consists of sandstones, siltstones, mudstones, carbonaceous shales, and coals deposited in meandering (low sinuosity) and anastomosed fluvial systems. These fluvial deposits alternated vertically with deposits of coal-forming mires. The Beluga drainages formed in low-gradient alluvial plains. The high-gradient Tyonek alluvial plain was probably controlled by provenance uplift and eustatic change, whereas the low-gradient Beluga alluvial plain was influenced by subdued provenance uplift and rapid basin subsidence. Rapid sedimentation on both these low- and high-gradient alluvial plains, which kept up with subsidence, produced a thermally [open quotes]cool[close quotes] basin.

Stricker, G.D.; Flores, R.M. (Geological Survey, Denver, CO (United States))

1996-01-01T23:59:59.000Z

231

Aerodynamic Thrust Modelling in Wave Tank Tests of Offshore Floating Wind Turbines Using a Ducted Fan  

Science Journals Connector (OSTI)

Wave tank testing of scaled models is standard practice during the development of floating wind turbine platforms for the validation of the dynamics of conceptual designs. Reliable recreation of the dynamics of a full scale floating wind turbine by a scaled model in a basin requires the precise scaling of the masses and inertias and also the relevant forces and its frequencies acting on the system. The scaling of floating wind turbines based on the Froude number is customary for basin experiments. This method preserves the hydrodynamic similitude, but the resulting Reynolds number is much lower than in full scale. The aerodynamic loads on the rotor are therefore out of scale. Several approaches have been taken to deal with this issue, like using a tuned drag disk or redesigning the scaled rotor. This paper describes the implementation of an alternative method based on the use of a ducted fan located at the model tower top in the place of the rotor. The fan can introduce a variable force that represents the total wind thrust by the rotor. A system controls this force by varying the rpm, and a computer simulation of the full scale rotor provides the desired thrust to be introduced by the fan. This simulation considers the wind turbine control, gusts, turbulent wind, etc. The simulation is performed in synchronicity with the test and it is fed in real time by the displacements and velocities of the platform captured by the acquisition system. Thus, the simulation considers the displacements of the rotor within the wind field and the calculated thrust models the effect of the aerodynamic damping. The system is not able currently to match the effect of gyroscopic momentum. The method has been applied during a test campaign of a semisubmersible platform with full catenary mooring lines for a 6MW wind turbine in scale 1/40 at Ecole Centrale de Nantes. Several tests including pitch free decay under constant wind and combined wave and wind cases have been performed. Data from the experiments are compared with aero-servo-hydro-elastic computations with good agreement showing the validity of the method for the representation of the scaled aerodynamics. The new method for the aerodynamic thrust scaling in basin tests is very promising considering its performance, versatility and lower cost in comparison with other methods.

José Azcona; Faisal Bouchotrouch; Marta González; Joseba Garciandía; Xabier Munduate; Felix Kelberlau; Tor A Nygaard

2014-01-01T23:59:59.000Z

232

Study of the Effects of Ambient Conditions Upon the Performance of Fan Powered, Infrared Natural Gas Burners  

SciTech Connect

The objective of this investigation was to characterize the operation of a fan-powered, infrared burner (IR burner) at various gas compositions and ambient conditions, develop numerical model to simulate the burner performances, and provide design guidelines for appliances containing PIR burners for satisfactory performance.

Clark Atlanta University

2002-12-02T23:59:59.000Z

233

Stimulated Emission from a Single Excited Atom in a Waveguide Eden Rephaeli1,* and Shanhui Fan2,  

E-Print Network (OSTI)

Stimulated Emission from a Single Excited Atom in a Waveguide Eden Rephaeli1,* and Shanhui Fan2, 1; published 3 April 2012) We study stimulated emission from an excited two-level atom coupled to a waveguide by the atom, plays a very important role in stimulated emission. Additionally, the temporal duration

Fan, Shanhui

234

New Energy Efficiency Standards for Furnace Fans to Reduce Carbon Pollution, Help Americans Save on Energy Bills  

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

WASHINGTON – As part of President Obama’s Climate Action Plan, the Energy Department today announced a new energy efficiency standard for furnace fans, the latest of eight finalized standards and nine proposed standards issued since the Climate Action Plan was announced last year.

235

Towards a syntactic signature for domain models: proposed descriptive metrics for visualizing the entity fan-out frequency distribution  

Science Journals Connector (OSTI)

The main objective of this paper is to find a minimal set of measures that allow the immediate, intuitive characterisation and visualization of the syntactic structure of models covering a particular application domain. The measures are validated ... Keywords: case measures, enterprise models, entity fan-out distribution, metrics, model analysis, model complexity, modelling

Jean-Paul van Belle

2002-09-01T23:59:59.000Z

236

Permanent Magnet Assisted Synchronous Reluctance Machine (PMa-SynRM) Design and Performance Analysis for Fan and Pump Applications  

E-Print Network (OSTI)

...................................................................................................... 47 Fig 3-12: Reluctance torque generated by each rotor at rated current and maximum torque angle. ................................................................................... 48 xi Page Fig 3-13: FEA analysis field output on the PMa... PERMANENT MAGNET ASSISTED SYNCHRONOUS RELUCTANCE MACHINE (PMA-SYNRM) DESIGN AND PERFORMANCE ANALYSIS FOR FAN AND PUMP APPLICATIONS A Dissertation by ROBERT VARTANIAN Submitted to the Office of Graduate and Professional Studies...

Vartanian, Robert

2014-08-13T23:59:59.000Z

237

Gas-surface scattering with multiple collisions in the physisorption potential well Guoqing Fan and J. R. Manson  

E-Print Network (OSTI)

Gas-surface scattering with multiple collisions in the physisorption potential well Guoqing Fan The problem of gas-surface collisions is developed in terms of a theoretical formalism that allows calcula gas distributions are considered, a monoenergetic incident beam and an equilibrium gas appropriate

Manson, Joseph R.

238

Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu and Charles R. Dyer  

E-Print Network (OSTI)

Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu issue of air pollution in China and elsewhere in the world is to monitor it. While more physical prediction performance of our approach. I. INTRODUCTION Air pollution is a significant issue in China

Dyer, Charles R.

239

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J. Brueck  

E-Print Network (OSTI)

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J and negative over an overlapping near-infrared wavelength range resulting in a low loss negative. Brueck, "Demonstration of Near-Infrared Negative-Index Materials," Postdeadline Paper at OSA Topical

New Mexico, University of

240

Influence of Tip Clearance and Inlet Flow Distortion on Ducted Fan Performance in VTOL UAVs Graduate Research Assistant  

E-Print Network (OSTI)

(Pa) CpTotal = Total pressure coefficient = Rotational speed (radian/sec) r = Radial distance measured military tasks, they can continuously transmit surveillance data and act as a relay station. Although to study the flow characteristics of ducted fans. Abrego and Bulaga [1] performed wind tunnel tests

Camci, Cengiz

Note: This page contains sample records for the topic "alluvial fan deposits" 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
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241

Performance Optimization of a Fan System- Overcoming Impacts of Modified Design Criteria Due to Regulatory Requirements and Changed Operating Conditions  

E-Print Network (OSTI)

that was applied to address fan inefficiency. Energy savings from optimizing the system are estimated to be 338 kW, nearly half of the original measured input power of 678 kW. The project is currently being implemented and will have a payback period of less than 8...

Wroblewski, R. G.; Preis, F.; Smith, R.

242

Chemical vapor deposition sciences  

SciTech Connect

Chemical vapor deposition (CVD) is a widely used method for depositing thin films of a variety of materials. Applications of CVD range from the fabrication of microelectronic devices to the deposition of protective coatings. New CVD processes are increasingly complex, with stringent requirements that make it more difficult to commercialize them in a timely fashion. However, a clear understanding of the fundamental science underlying a CVD process, as expressed through computer models, can substantially shorten the time required for reactor and process development. Research scientists at Sandia use a wide range of experimental and theoretical techniques for investigating the science of CVD. Experimental tools include optical probes for gas-phase and surface processes, a range of surface analytic techniques, molecular beam methods for gas/surface kinetics, flow visualization techniques and state-of-the-art crystal growth reactors. The theoretical strategy uses a structured approach to describe the coupled gas-phase and gas-surface chemistry, fluid dynamics, heat and mass transfer of a CVD process. The software used to describe chemical reaction mechanisms is easily adapted to codes that model a variety of reactor geometries. Carefully chosen experiments provide critical information on the chemical species, gas temperatures and flows that are necessary for model development and validation. This brochure provides basic information on Sandia`s capabilities in the physical and chemical sciences of CVD and related materials processing technologies. It contains a brief description of the major scientific and technical capabilities of the CVD staff and facilities, and a brief discussion of the approach that the staff uses to advance the scientific understanding of CVD processes.

NONE

1992-12-31T23:59:59.000Z

243

Laboratory evaluation of fan/filter units' aerodynamic and energy performance  

SciTech Connect

The paper discusses the benefits of having a consistent testing method to characterize aerodynamic and energy performance of FFUs. It presents evaluation methods of laboratory-measured performance of ten relatively new, 1220 mm x 610 mm (or 4 ft x 2 ft) fan-filter units (FFUs), and includes results of a set of relevant metrics such as energy performance indices (EPI) based upon the sample FFUs tested. This paper concludes that there are variations in FFUs' performance, and that using a consistent testing and evaluation method can generate compatible and comparable FFU performance information. The paper also suggests that benefits and opportunities exist for our method of testing FFU energy performance to be integrated in future recommended practices.

Xu, Tengfang; Jeng, Ming-Shan

2004-07-27T23:59:59.000Z

244

An optical fan for light beams for high-precision optical measurements and optical switching  

E-Print Network (OSTI)

The polarization and orbital angular momentum properties of light are of great importance in optical science and technology in the fields of high precision optical measurements and high capacity and high speed optical communications. Here we show, a totally new method, based on a combination of these two properties and using the thermal dispersion and electro-optical effect of birefringent crystals, the construction of a simple and robust scheme to rotate a light beam like a fan. Using a computer-based digital image processing technique, we determine the temperature and the thermal dispersion difference of the crystal with high resolution. We also use the rotation phenomenon to realize thermo-optic and electro-optic switches. The basic operating principles for measurement and switching processes are presented in detail. The methods developed here will have wide practical applicability in various fields, including remote sensing, materials science and optical communication networks.

Zhou, Zhi-Yuan; Ding, Dong-Sheng; Jiang, Yun-Kun; Zhang, Wei; Shi, Shuai; Shi, Bao-Sen; Guo, Guang-Can

2014-01-01T23:59:59.000Z

245

An optical fan for light beams for high-precision optical measurements and optical switching  

E-Print Network (OSTI)

The polarization and orbital angular momentum properties of light are of great importance in optical science and technology in the fields of high precision optical measurements and high capacity and high speed optical communications. Here we show, a totally new method, based on a combination of these two properties and using the thermal dispersion and electro-optical effect of birefringent crystals, the construction of a simple and robust scheme to rotate a light beam like a fan. Using a computer-based digital image processing technique, we determine the temperature and the thermal dispersion difference of the crystal with high resolution. We also use the rotation phenomenon to realize thermo-optic and electro-optic switches. The basic operating principles for measurement and switching processes are presented in detail. The methods developed here will have wide practical applicability in various fields, including remote sensing, materials science and optical communication networks.

Zhi-Yuan Zhou; Yan Li; Dong-Sheng Ding; Yun-Kun Jiang; Wei Zhang; Shuai Shi; Bao-Sen Shi; Guang-Can Guo

2014-05-08T23:59:59.000Z

246

Changes in the chemistry of shallow groundwater related to the 2008 injection of CO2 at the ZERT field site, Bozeman, Montana  

E-Print Network (OSTI)

deposits consist of unconsolidated Quaternary alluvial-fana heterogeneous mixture of unconsolidated poorly sorted rock

2010-01-01T23:59:59.000Z

247

Development of a Fan-Filter Unit Test Standard, LaboratoryValidations, and its Applications across Industries  

SciTech Connect

Lawrence Berkeley National Laboratory (LBNL) is now finalizing the Phase 2 Research and Demonstration Project on characterizing 2-foot x 4-foot (61-cm x 122-cm) fan-filter units in the market using the first-ever standard laboratory test method developed at LBNL.[1][2][3] Fan-filter units deliver re-circulated air and provide particle filtration control for clean environments. Much of the energy in cleanrooms (and minienvironments) is consumed by 2-foot x 4-foot (61-cm x 122-cm) or 4-foot x 4-foot (122-cm x 122-cm) fan-filter units that are typically located in the ceiling (25-100% coverage) of cleanroom controlled environments. Thanks to funding support by the California Energy Commission's Industrial Program of the Public Interest Energy Research (PIER) Program, and significant participation from manufacturers and users of fan-filter units from around the world, LBNL has developed and performed a series of standard laboratory tests and reporting on a variety of 2-foot x 4-foot (61-cm x 122-cm) fan-filter units (FFUs). Standard laboratory testing reports have been completed and reported back to anonymous individual participants in this project. To date, such reports on standard testing of FFU performance have provided rigorous and useful data for suppliers and end users to better understand, and more importantly, to quantitatively characterize performance of FFU products under a variety of operating conditions.[1] In the course of the project, the standard laboratory method previously developed at LBNL has been under continuous evaluation and update.[2][3] Based upon the updated standard, it becomes feasible for users and suppliers to characterize and evaluate energy performance of FFUs in a consistent way.

Xu, Tengfang

2006-10-20T23:59:59.000Z

248

Energy saving in agricultural buildings through fan motor control by variable frequency drives  

Science Journals Connector (OSTI)

A comparison was conducted between ON–OFF and variable frequency drive (VFD) systems to control ventilation fans of greenhouses and poultry houses. The study aimed to determine the effect of each system on the energy consumption and resulting microclimate within the houses. The experiments were carried out in a commercial-size greenhouse in which pepper was grown and in commercial poultry houses. Reducing the fan speed with the VFD system resulted in reductions in the airflow rate through the houses and energy consumption, the latter being much more significant. The study showed that VFD control can reduce electricity consumption compared with ON–OFF operation. In the present study, the average energy consumption with the VFD control system was about 0.64 and 0.75 of that with an ON–OFF system in the greenhouse and poultry houses, respectively. The average greenhouse daily air temperatures and humidity ratios obtained with each control system between 07:00 and 18:00 were nearly equal. The results obtained in the greenhouse further showed that the VFD system has a greater potential than the ON–OFF, to reduce the range of amplitude variations in the air temperature and humidity ratio within the greenhouse. The average air temperatures over day and night, in the poultry houses, with each control system were nearly equal. The relative humidity, however, was slightly lower with VFD than with ON–OFF. Reductions in the range of amplitude variations of the air temperature and humidity were also observed in the poultry houses.

Meir Teitel; Asher Levi; Yun Zhao; Moti Barak; Eli Bar-lev; David Shmuel

2008-01-01T23:59:59.000Z

249

Atmospheric Pressure Deposition for Electrochromic Windows |...  

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

Atmospheric Pressure Deposition for Electrochromic Windows Atmospheric Pressure Deposition for Electrochromic Windows Emerging Technologies Project for the 2013 Building...

250

Title  

National Nuclear Security Administration (NNSA)

PREPARED FROM 1:24.000' SCALE AERIAL PHOTOGRAPHS TAKEN AUGUST, 1991 BY E G 8 G ENERGY MEASUREMENTS, INC. TION ALLUVIAL FAN BOUNDARY BOUNDARY OF RADIOACTIVE WASTE'...

251

OCTOBER 1990 DEPOSITION AND REMOVAL  

E-Print Network (OSTI)

, shielding, resuspension, indoor deposition, the relative airborne con- centrations indoors and outdoors RESUSPENSION; PLANTS; RADIATION DOSE DISTRIBUTION; REMEDIAL ACTION; SHIELDING; SURFACE CONTAMINATION; URBAN effected by road traffic, and street cleaning the degree of resuspension, i.e. the return of deposited

252

Variable temperature semiconductor film deposition  

DOE Patents (OSTI)

A method of depositing a semiconductor material on a substrate is disclosed. The method sequentially comprises (a) providing the semiconductor material in a depositable state such as a vapor for deposition on the substrate; (b) depositing the semiconductor material on the substrate while heating the substrate to a first temperature sufficient to cause the semiconductor material to form a first film layer having a first grain size; (c) continually depositing the semiconductor material on the substrate while cooling the substrate to a second temperature sufficient to cause the semiconductor material to form a second film layer deposited on the first film layer and having a second grain size smaller than the first grain size; and (d) raising the substrate temperature, while either continuing or not continuing to deposit semiconductor material to form a third film layer, to thereby anneal the film layers into a single layer having favorable efficiency characteristics in photovoltaic applications. A preferred semiconductor material is cadmium telluride deposited on a glass/tin oxide substrate already having thereon a film layer of cadmium sulfide.

Li, X.; Sheldon, P.

1998-01-27T23:59:59.000Z

253

Magnetism of Chinese loess deposits  

Science Journals Connector (OSTI)

......April 1984 research-article Articles Magnetism of Chinese loess deposits Friedrich Heller...astr. Soc. (1984) 77, 125-141 Magnetism of Chinese loess deposits Friedrich Heller...considerable improvement of NRM cleaning. Often Magnetism of Chinese loess LOG R h ' M A H B......

Friedrich Heller; Liu Tungsheng

1984-04-01T23:59:59.000Z

254

2014-09-16 Issuance: Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Public Meeting and Availability of the Preliminary Technical Support Document  

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

This document is a pre-publication Federal Register Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Public Meeting and Availability of the Preliminary Technical Support Document.

255

Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part I: Theoretical Model and Simulation  

E-Print Network (OSTI)

As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the duct pressure loss downstream of the sensor...

Liu, M.; Feng, J.; Wang, Z.; Wu, L.; Zheng, K.; Pang, W.

2007-01-01T23:59:59.000Z

256

A prototype fan-beam optical CT scanner for 3D dosimetry  

SciTech Connect

Purpose: The objective of this work is to introduce a prototype fan-beam optical computed tomography scanner for three-dimensional (3D) radiation dosimetry. Methods: Two techniques of fan-beam creation were evaluated: a helium-neon laser (HeNe, {lambda} = 543 nm) with line-generating lens, and a laser diode module (LDM, {lambda} = 635 nm) with line-creating head module. Two physical collimator designs were assessed: a single-slot collimator and a multihole collimator. Optimal collimator depth was determined by observing the signal of a single photodiode with varying collimator depths. A method of extending the dynamic range of the system is presented. Two sample types were used for evaluations: nondosimetric absorbent solutions and irradiated polymer gel dosimeters, each housed in 1 liter cylindrical plastic flasks. Imaging protocol investigations were performed to address ring artefacts and image noise. Two image artefact removal techniques were performed in sinogram space. Collimator efficacy was evaluated by imaging highly opaque samples of scatter-based and absorption-based solutions. A noise-based flask registration technique was developed. Two protocols for gel manufacture were examined. Results: The LDM proved advantageous over the HeNe laser due to its reduced noise. Also, the LDM uses a wavelength more suitable for the PRESAGE{sup TM} dosimeter. Collimator depth of 1.5 cm was found to be an optimal balance between scatter rejection, signal strength, and manufacture ease. The multihole collimator is capable of maintaining accurate scatter-rejection to high levels of opacity with scatter-based solutions (T < 0.015%). Imaging protocol investigations support the need for preirradiation and postirradiation scanning to reduce reflection-based ring artefacts and to accommodate flask imperfections and gel inhomogeneities. Artefact removal techniques in sinogram space eliminate streaking artefacts and reduce ring artefacts of up to {approx}40% in magnitude. The flask registration technique was shown to achieve submillimetre and subdegree placement accuracy. Dosimetry protocol investigations emphasize the need to allow gel dosimeters to cool gradually and to be scanned while at room temperature. Preliminary tests show that considerable noise reduction can be achieved with sinogram filtering and by binning image pixels into more clinically relevant grid sizes. Conclusions: This paper describes a new optical CT scanner for 3D radiation dosimetry. Tests demonstrate that it is capable of imaging both absorption-based and scatter-based samples of high opacities. Imaging protocol and gel dosimeter manufacture techniques have been adapted to produce optimal reconstruction results. These optimal results will require suitable filtering and binning techniques for noise reduction purposes.

Campbell, Warren G.; Rudko, D. A.; Braam, Nicolas A.; Jirasek, Andrew [University of Victoria, Victoria, British Columbia V8P 5C2 (Canada); Wells, Derek M. [British Columbia Cancer Agency, Vancouver Island Centre, Victoria, British Columbia V8R 6V5 (Canada)

2013-06-15T23:59:59.000Z

257

Field testing of component-level model-based fault detection methods for mixing boxes and VAV fan systems  

SciTech Connect

An automated fault detection and diagnosis tool for HVAC systems is being developed, based on an integrated, life-cycle, approach to commissioning and performance monitoring. The tool uses component-level HVAC equipment models implemented in the SPARK equation-based simulation environment. The models are configured using design information and component manufacturers' data and then fine-tuned to match the actual performance of the equipment by using data measured during functional tests of the sort using in commissioning. This paper presents the results of field tests of mixing box and VAV fan system models in an experimental facility and a commercial office building. The models were found to be capable of representing the performance of correctly operating mixing box and VAV fan systems and detecting several types of incorrect operation.

Xu, Peng; Haves, Philip

2002-05-16T23:59:59.000Z

258

Hydrothermal Deposition | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal Deposition Hydrothermal Deposition Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Deposition Dictionary.png Hydrothermal Deposition: No definition has been provided for this term. Add a Definition Quartz veins indicate ancient fluid flow, possibly the result of a hydrothermal system (reference: http://www.nvcc.edu/home/cbentley/dc_rocks/) Tufa mounds indicate the location of extinct hot springs. In this photo they show the ancient extent of the surface manifestations at Mono Lake, CA (reference: http://news.medill.northwestern.edu/climatechange/page.aspx?id=170704)(photo by Scott Stine) Hydrothermal water carries minerals as it travels through the crust. These minerals are often deposited as pressure decreases as the fluid approaches

259

Field demonstration of optimized variable speed compressor and condenser fan control for commercial refrigeration systems. Final report  

SciTech Connect

The demonstration project discussed in this report consisted of two separate programs intended to examine methods of implementing variable-frequency drives (VFDs) to increase the efficiency of supermarket refrigeration racks. The first program examined the optimum control strategy for minimizing the power consumption of medium-temperature parallel compressor racks driven by VFDs. The second program, aimed at developing the optimum control strategy for variable-speed control of supermarket condenser fans.

NONE

1997-11-01T23:59:59.000Z

260

Geological overview of the Angola-Congo Margin, the Congo deep-sea fan and its submarine valleys  

E-Print Network (OSTI)

The Congo deep-sea fan is one of the largest fans in the world still affected by presently active turbidity currents. The present activity of deep-sea sedimentary processes is linked to the existence of a direct connection between the Congo River estuary and the Congo canyon head that allows relatively continuous sediment feeding of the deep-sea environment, in spite of a wide continental shelf (150 km). Because of this important activity in terms of sedimentary processes, the deep-sea environment of the Congo-Angola margin presents major interests concerning physical, chemical and biological studies near the sea floor. The main aim of this paper is to present the initial geological context of the BioZaire Program, showing a synthesis of the major results of the ZaïAngo Project including (1) the brief geological setting of the Congo-Angola margin, (2) the structure of the modern Congo deep-sea fan, (3) the sedimentary architecture of the recent Congo turbidite system (from the canyon to the distal lobes), and (4) the recent and present turbidite sedimentation. In order to provide useful information and advice relevant to biological and geochemical studies across the Congo sedimentary system, this article focuses on the present sedimentary processes and the present activity of turbidity current along the Congo canyon and channel.

unknown authors

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

TULSA UNIVERSITY PARAFFIN DEPOSITION PROJECTS  

SciTech Connect

As oil and gas production moves to deeper and colder water, subsea multiphase production systems become critical for economic feasibility. It will also become increasingly imperative to adequately identify the conditions for paraffin precipitation and predict paraffin deposition rates to optimize the design and operation of these multiphase production systems. Although several oil companies have paraffin deposition predictive capabilities for single-phase oil flow, these predictive capabilities are not suitable for the multiphase flow conditions encountered in most flowlines and wellbores. For deepwater applications in the Gulf of Mexico, it is likely that multiphase production streams consisting of crude oil, produced water and gas will be transported in a single multiphase pipeline to minimize capital cost and complexity at the mudline. Existing single-phase (crude oil) paraffin deposition predictive tools are clearly inadequate to accurately design these pipelines because they do not account for the second and third phases, namely, produced water and gas. The objective of this program is to utilize the current test facilities at The University of Tulsa, as well as member company expertise, to accomplish the following: enhance our understanding of paraffin deposition in single and two-phase (gas-oil) flows; conduct focused experiments to better understand various aspects of deposition physics; and, utilize knowledge gained from experimental modeling studies to enhance the computer programs developed in the previous JIP for predicting paraffin deposition in single and two-phase flow environments. These refined computer models will then be tested against field data from member company pipelines. The following deliverables are scheduled during the first three projects of the program: (1) Single-Phase Studies, with three different black oils, which will yield an enhanced computer code for predicting paraffin deposition in deepwater and surface pipelines. (2) Two-Phase Studies, with a focus on heat transfer and paraffin deposition at various pipe inclinations, which will be used to enhance the paraffin deposition code for gas-liquid flow in pipes. (3) Deposition Physics and Water Impact Studies, which will address the aging process, improve our ability to characterize paraffin deposits and enhance our understanding of the role water plays in paraffin deposition in deepwater pipelines. As in the previous two studies, knowledge gained in this suite of studies will be integrated into a state-of-the-art three-phase paraffin deposition computer program.

Michael Volk; Cem Sarica

2003-10-01T23:59:59.000Z

262

Characterization of dynamic change of Fan-delta reservoir properties in water-drive development  

SciTech Connect

Fan-delta reservoir in Huzhuangji oil field of east China, is a typical highly heterogeneous reservoir. The oil field has been developed by water-drive for 10 years, but the oil recovery is less than 12%, and water cut is over 90%, resulting from high heterogeneity and serious dynamic change of reservoir properties. This paper aims at the study of dynamic change of reservoir properties in water-drive development. Through quantitative imaging analysis and mercury injection analysis of cores from inspection wells, the dynamic change of reservoir pore structure in water-drive development was studied. The results show that the {open_quotes}large pore channels{close_quotes} develop in distributary channel sandstone and become larger in water-drive development, resulting in more serious pore heterogeneity. Through reservoir sensitivity experiments, the rock-fluid reaction in water-drive development is studied. The results show the permeability of some distal bar sandstone and deserted channel sandstone becomes lower due to swelling of I/S clay minerals in pore throats. OD the other hand, the permeability of distributary channel and mouth bar sandstone become larger because the authigenic Koalinites in pore throats are flushed away with the increase of flow rate of injection water. Well-logging analysis of flooded reservoirs are used to study the dynamic change of reservoir properties in various flow units. The distribution of remaining oil is closely related to the types and distribution of flow units.

Wu Shenghe; Xiong Qihua; Liu Yuhong [Univ. of Petroleum Changping, Beijing (China)

1997-08-01T23:59:59.000Z

263

Toward green systems for cleanrooms: Energy efficient fan-filter units  

SciTech Connect

The paper presents results of laboratory-measured performance of fan-filter units (FFUs) used for cleanrooms. A total of twenty FFUs collected from the market were tested, including thirteen 1220 mm x 610 mm (or 4 ft x 2 ft) units and seven 1220 mm x 1220 mm (or 4 ft x 4 ft) units. The paper concludes that there are wide variations in FFUs energy performance, and that there are opportunities in improving energy efficiency and lowering operating costs of FFUs. Furthermore, the paper suggests the benefits of having a uniform method for testing and reporting FFU performance. Such a testing method and recommended practice guideline is under development, with heavy input from FFU suppliers, users, and independent institutions that include Lawrence Berkeley National Laboratory (LBNL), Industrial Technology Research Institute (ITRI), and Institute of Environmental Sciences and Technology (IEST). An integrated approach with the participation from designers, suppliers, users, and utility companies can help to identify energy-efficient FFUs that are required for many cleanroom applications.

Jeng, Ming-Shan; Xu, Tengfang; Lan, Chao-Ho

2004-07-12T23:59:59.000Z

264

E-Print Network 3.0 - airflow gas deposition Sample Search Results  

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

gas conditions and.condensing temperature (thus pressure) are supplied as input to the heat pump... * air-flow rates at each heat exchanger * combined fan and fan-motor...

265

Other Hydrothermal Deposits | Open Energy Information  

Open Energy Info (EERE)

hydrothermal deposits dot the landscape at the Hverir Geothermal Area, Iceland. Photo by Darren Atkins User-specified field for unlisted hydrothermally deposited rock and...

266

Sol-Gel Deposited Electrochromic Coatings  

E-Print Network (OSTI)

Handbook of Inorganic Electrochromic Materials, Elsevier, .O R Y Sol-Gel Deposited Electrochromic Coatings Nilgun Ozer1600 Sol-Gel Deposited Electrochromic Coatings Nilgun Ozer

Ozer, N.

2010-01-01T23:59:59.000Z

267

Sandia National Laboratories: ion beam assisted deposition  

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

ion beam assisted deposition Sandia, Los Alamos, Superconducting Technologies Inc., & Superpower: Solution Deposition Planarization On March 20, 2013, in CINT, Facilities, Grid...

268

Linked Deposit Loan Program (Kentucky)  

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

The Linked Deposit Program provides loan financing for small businesses of up to $100,000 for up to 7 years. The State Investment Commission invests funds from the state's Abandoned Property Cash...

269

Success Story: Chrome Deposit Corporation  

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

This case study describes how Chrome Deposit Corporation was able to reduce plant-wide energy use, minimize its environmental impact, and improve energy management practices amidst ongoing growth.

270

CHANGES IN SANDSTONE DISTRIBUTIONS BETWEEN THE UPPER, MIDDLE, AND LOWER FAN IN THE ARKANSAS JACKFORK GROUP  

E-Print Network (OSTI)

and how the sediments are deposited. Five outcrops from the Arkansas Jackfork Group have been chosen for this study and each were divided into different facies dependent on sandstone percentages in certain bed sets. The amount of sandstone for each facies...

Mack, Clayton P.

2010-07-14T23:59:59.000Z

271

Asphalt deposition in miscible floods  

E-Print Network (OSTI)

. ACKNOWLEDGMENTS. . 22 23 8. REFERENCES. 24 9. APPENDIX. 26 LIST OF TABLES Table Page I II IV Properties of the Crude Oils Studied Average Core Properties for Different Tests Average Perrneabilities of Different Sections of Core Before and After... Displacement with Liquefied Petroleum Gas Percent Reduction in Permeability in Different Sections of Core Due to Asphalt Deposition Average Recoveries of Four Crude Oils and Increase in Swept Area due to Plugging by Asphalt Deposition 27 29 ABSTRACT...

Hasan, Syed Mir Ahmed

2012-06-07T23:59:59.000Z

272

Chemical enhancement of surface deposition  

DOE Patents (OSTI)

A method and apparatus for increasing the deposition of ions onto a surface, such as the adsorption of uranium ions on the detecting surface of a radionuclide detector. The method includes the step of exposing the surface to a complexing agent, such as a phosphate ion solution, which has an affinity for the dissolved species to be deposited on the surface. This provides, for example, enhanced sensitivity of the radionuclide detector.

Patch, Keith D. (Lexington, MA); Morgan, Dean T. (Sudbury, MA)

1997-07-29T23:59:59.000Z

273

Chemical enhancement of surface deposition  

DOE Patents (OSTI)

A method and apparatus are disclosed for increasing the deposition of ions onto a surface, such as the adsorption of uranium ions on the detecting surface of a radionuclide detector. The method includes the step of exposing the surface to a complexing agent, such as a phosphate ion solution, which has an affinity for the dissolved species to be deposited on the surface. This provides, for example, enhanced sensitivity of the radionuclide detector. 16 figs.

Patch, K.D.; Morgan, D.T.

1997-07-29T23:59:59.000Z

274

Vapor deposition of hardened niobium  

DOE Patents (OSTI)

A method of coating ceramic nuclear fuel particles containing a major amount of an actinide ceramic in which the particles are placed in a fluidized bed maintained at ca. 800.degree. to ca. 900.degree. C., and niobium pentachloride vapor and carbon tetrachloride vapor are led into the bed, whereby niobium metal is deposited on the particles and carbon is deposited interstitially within the niobium. Coating apparatus used in the method is also disclosed.

Blocher, Jr., John M. (Columbus, OH); Veigel, Neil D. (Columbus, OH); Landrigan, Richard B. (Columbus, OH)

1983-04-19T23:59:59.000Z

275

Issuance 2014-11-21:Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Availability of the Preliminary Technical Support Document, Notice of Comment Period Extension  

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

Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Availability of the Preliminary Technical Support Document, Notice of Comment Period Extension

276

Potpourri of deposition and resuspension questions  

SciTech Connect

Twenty questions and answers are listed dealing with particulate deposition, resuspension, and precipitation scavenging.

Slinn, W.G.N.

1983-01-01T23:59:59.000Z

277

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

SciTech Connect

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore.

Laue, M.L.

1999-11-01T23:59:59.000Z

278

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

SciTech Connect

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low energy deposits at the distal end of a protruding turbidite complex through use of hydraulically fractured horizontal of high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than conventional vertical wells while maintaining vertical communication between thin interbedded layers and the well bore.

Mike L. Laue

1998-05-29T23:59:59.000Z

279

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

SciTech Connect

This project attempts to demonstrate the effectivensss of exploiting thin-layered, low energy deposits at the distal margin of a propagating turbinite complex through u se of hydraulically fractgured horizontal of high-angle wells. TGhe combinaton of a horizontal or high-angle weoo and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore.

Mike L. Laue

1998-02-05T23:59:59.000Z

280

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

SciTech Connect

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a propagating turbidite complex through the use of hydraulically-fractured horizontal or high-angle wells. The combination of a horizontal or high-angled well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thininterbedded layers and the well bore.

Mike L. Laue

1997-05-08T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

TULSA UNIVERSITY PARAFFIN DEPOSITION PROJECTS  

SciTech Connect

As oil and gas production moves to deeper and colder water, subsea multiphase production systems become critical for economic feasibility. It will also become increasingly imperative to adequately identify the conditions for paraffin precipitation and predict paraffin deposition rates to optimize the design and operation of these multi-phase production systems. Although several oil companies have paraffin deposition predictive capabilities for single-phase oil flow, these predictive capabilities are not suitable for the multiphase flow conditions encountered in most flowlines and wellbores. For deepwater applications in the Gulf of Mexico, it is likely that multiphase production streams consisting of crude oil, produced water and gas will be transported in a single multiphase pipeline to minimize capital cost and complexity at the mudline. Existing single-phase (crude oil) paraffin deposition predictive tools are clearly inadequate to accurately design these pipelines, because they do not account for the second and third phases, namely, produced water and gas. The objective of this program is to utilize the current test facilities at The University of Tulsa, as well as member company expertise, to accomplish the following: enhance our understanding of paraffin deposition in single and two-phase (gas-oil) flows; conduct focused experiments to better understand various aspects of deposition physics; and, utilize knowledge gained from experimental modeling studies to enhance the computer programs developed in the previous JIP for predicting paraffin deposition in single and two-phase flow environments. These refined computer models will then be tested against field data from member company pipelines.

Cem Sarica; Michael Volk

2004-06-01T23:59:59.000Z

282

Depositional environments and reservoir properties of the upper Queen Formation, Concho Bluff and Concho Bluff North fields, Midland basin, Texas  

SciTech Connect

The upper Queen Formation (Upper Permian) in Concho Bluff and Concho Bluff North fields (Crane, Upton, and Ector counties, Texas) consists of four thick (6-11 m) clastic members separated by evaporite members, and contains several major sandstone reservoirs. A study of cores and logs from the upper Queen was done to determine its depositional environments and the properties of its sandstone reservoirs. Four facies are present in the upper Queen. Facies 1 consists of planar- and wavy-laminated fine and very fine sandstones and silty sandstones deposited in fluvial sandflats and delta-plains. Facies 2 consists of wavy-laminated siltstones and haloturbated mudstones with anhydrite nodules deposited in subaqueous prodelta environments and subaerial saline mudflats. Facies 3 consists of well-sorted fine to very fine sandstones with horizontal and inclined planar laminae deposited in eolian sand sheets. Facies 4 consists of massive to laminated halite and anhydrite deposited in hypersaline playas. The vertical sequence of these facies indicates that the upper Queen was deposited during four cycles of fan-delta progradation into and retreat from coastal-plain playas during a sea level lowstand in the Midland basin. The sandstones of the fluvial sandflat and eolian sand-sheet facies constitute the reservoirs of the upper Queen in the fields. The average cumulative thickness of these facies is 8 m, and the fields average 16% porosity and 40-50 md of permeability. The remaining facies are all nonproductive with averagge porosities of less than 10% and average permeabilities of less than 1 md.

Mazzullo, J.; Newsom, D.; Harper, J.; McKone, C.; Price, B. (Texas A and M Univ., College Station (United States))

1992-04-01T23:59:59.000Z

283

Vacuum vapor deposition gun assembly  

DOE Patents (OSTI)

A vapor deposition gun assembly includes a hollow body having a cylindrical outer surface and an end plate for holding an adjustable heat sink, a hot hollow cathode gun, two magnets for steering the plasma from the gun into a crucible on the heat sink, and a shutter for selectively covering and uncovering the crucible.

Zeren, Joseph D. (Boulder, CO)

1985-01-01T23:59:59.000Z

284

Interglacial Deposits at Bobbitshole, Ipswich  

Science Journals Connector (OSTI)

...Bobbitshole, Ipswich R. G. West The stratigraphy and palaeobotany...occupy a lake basin in a valley cut in the local plateau...Interglacial in north-west Europe, with which the...and clays deposited in a valley cut in boulder clay assigned...Bobbitshole, Ipswich West Richard Gilbert Author...

1957-01-01T23:59:59.000Z

285

Method to inhibit deposit formation  

SciTech Connect

A process is described for inhibiting deposit formation on the contact surfaces of structures confining heated hydrocarbon fluid which exhibits substantial fouling. The process consists of introducing into the hydrocarbon fluid at least an inhibiting amount of thiophene-containing polycondensed aromatic/naphthenic compounds of number average molecular weight (M-bar n) from 200 to 1,000.

Dickakian, G.B.

1986-10-28T23:59:59.000Z

286

Precipitation scavenging, dry deposition, and resuspension. Volume 2: dry deposition and resuspension  

SciTech Connect

Papers are presented under the headings: dry deposition of gases, dry deposition of particles, wind erosion, plutonium deposition and resuspension, air-sea exchange, tropical and polar, global scale, and future studies.

Pruppacher, H.R.; Semanin, R.G.; Slinn, W.G.N.

1983-01-01T23:59:59.000Z

287

Vapor deposition of tantalum and tantalum compounds  

SciTech Connect

Tantalum, and many of its compounds, can be deposited as coatings with techniques ranging from pure, thermal chemical vapor deposition to pure physical vapor deposition. This review concentrates on chemical vapor deposition techniques. The paper takes a historical approach. The authors review classical, metal halide-based techniques and current techniques for tantalum chemical vapor deposition. The advantages and limitations of the techniques will be compared. The need for new lower temperature processes and hence new precursor chemicals will be examined and explained. In the last section, they add some speculation as to possible new, low-temperature precursors for tantalum chemical vapor deposition.

Trkula, M. [Los Alamos National Lab., NM (United States). Materials Science and Technology Div.

1996-04-01T23:59:59.000Z

288

Computational study of wax deposition in pipeline  

Science Journals Connector (OSTI)

Wax deposition in subsea pipelines is one of the flow assurance problems for oil and gas production. In contrast to many studies about single phase wax deposition gas-oil wax deposition studies are very limited. The wax deposition mechanism and model prediction are restricted by many factors such as hydrodynamic and thermal when multiphase flow is involved. Wax deposition modeling becomes complicated under multiphase flowing conditions. wax deposition is depended by the flow pattern. The stratified flow is one of the most common flow patterns in the actual subsea gas-oil flowing conditions. In this work numerical methods are used to study wax deposition in oil-gas stratified flow through a pipe. Based on the flow analysis about stratified flow the non-isothermal heat and mass transfer is calculated. The temperature profile of the oil and the concentration profile of wax in oil are obtained. The change of the oil-gas interface i.e. the liquid holdup throughout the pipe must be taken into the heat and mass balance. The valid wax deposition surface must be taken into the wax deposition modeling by establishing function of the liquid holdup and the wetted area by oil. The molecular diffusion is as the deposition mechanism. The increase of the wax fraction in the deposit as a function of time depends on the mass flux from the oil deposit interface into the gel and the growth of the deposit thickness depends on the difference between the mass flux from the bulk oil to the oil deposit interface and the mass flux from the interface into the deposit. In addition the growth of the wax deposit as a function of time along with the effect oil flow rate gas flow rate and the inlet temperature are discussed. The presence of gas significantly reduces the severity of wax deposition by altering the heat and mass transfer characteristics.

2013-01-01T23:59:59.000Z

289

Modeling deposit formation in diesel injector nozzle  

E-Print Network (OSTI)

Formation of deposit in the diesel injector nozzle affects the injection behavior and hinders performance. Under running condition, deposit precursors are washed away by the ensuing injection. However, during the cool down ...

Sudhiesh Kumar, Chintoo

2009-01-01T23:59:59.000Z

290

Resuspension of wall deposits in spray dryers  

Science Journals Connector (OSTI)

Wall deposition occurs in spray dryers when dried or partially dried particles contact and adhere to the walls during operation, thus reducing the yield of product collected. Wall deposits also present a product ...

M. J. Hanus; T. A. G. Langrish

2007-10-01T23:59:59.000Z

291

Chemical vapor deposition of functionalized isobenzofuran polymers  

E-Print Network (OSTI)

This thesis develops a platform for deposition of polymer thin films that can be further tailored by chemical surface modification. First, we explore chemical vapor deposition of functionalized isobenzofuran films using ...

Olsson, Ylva Kristina

2007-01-01T23:59:59.000Z

292

TEMPORAL MODELING OF SLIDE CHANGE IN PRESENTATION VIDEOS Quanfu Fan (1), Arnon Amir (2), Kobus Barnard (1), Ranjini Swaminathan (1) and Alon Efrat (1)  

E-Print Network (OSTI)

TEMPORAL MODELING OF SLIDE CHANGE IN PRESENTATION VIDEOS Quanfu Fan (1), Arnon Amir (2), Kobus develop a general framework to automatically match elec- tronic slides to the videos of corresponding video libraries. Our approach extends previous work that matches slides based on visual features alone

Barnard, Kobus

293

Essays on Banking Crises and Deposit Insurance  

E-Print Network (OSTI)

of the deposit insurance system while the second essay studies the impact of international illiquidity on domestic banking crises. The Recent Deposit Insurance Reform in the U.S. raised the coverage limit for certain types of deposits. In chapter II, I study...

Wang, Wen-Yao

2009-05-15T23:59:59.000Z

294

Accelerated electrospark deposition and the wear behavior of coatings  

Science Journals Connector (OSTI)

Electrospark deposition (ESD) is a coating process that ... such as pulse energy, pulse frequency, and deposition time are presented. Electrospark deposition coating by the new equipment on AISI...

P. -Z. Wang; G. -S. Pan; Y. Zhou; J. -X. Qu…

1997-12-01T23:59:59.000Z

295

Political connections, bank deposits, and formal deposit insurance: Evidence from an emerging economy  

E-Print Network (OSTI)

1 Political connections, bank deposits, and formal deposit insurance: Evidence from an emerging the impact of banks' political connections on their ability to collect deposits under two different deposit, regardless of their type (state-owned or private entities), politically connected banks are able to attract

Boyer, Edmond

296

Chemical vapor deposition of epitaxial silicon  

DOE Patents (OSTI)

A single chamber continuous chemical vapor deposition (CVD) reactor is described for depositing continuously on flat substrates, for example, epitaxial layers of semiconductor materials. The single chamber reactor is formed into three separate zones by baffles or tubes carrying chemical source material and a carrier gas in one gas stream and hydrogen gas in the other stream without interaction while the wafers are heated to deposition temperature. Diffusion of the two gas streams on heated wafers effects the epitaxial deposition in the intermediate zone and the wafers are cooled in the final zone by coolant gases. A CVD reactor for batch processing is also described embodying the deposition principles of the continuous reactor.

Berkman, Samuel (Florham Park, NJ)

1984-01-01T23:59:59.000Z

297

Particle deposition in granular media: Progress report  

SciTech Connect

This paper discusses topics on particle deposition in granular media. The six topics discussed are: experimental determination of initial collection efficiency in granular beds - an assessment of the effect of instrument sensitivity and the extent of particle bounce-off; deposition of polydispersed aerosols in granular media; in situ observation of aerosol deposition in a two-dimensional model filter; solid velocity in cross-flow granular moving bed; aerosol deposition in granular moving bed; and aerosol deposition in a magnetically stabilized fluidized bed. (LSP)

Tien, Chi

1987-01-01T23:59:59.000Z

298

DOE Workshop - Deposition Velocity Status  

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

Delivering DOE's Vision for the Delivering DOE's Vision for the East Tennessee Technology Park Mission Safely Delivering the Department of Energy's Vision for the East Tennessee Technology Park Mission DOE Workshop Deposition Velocity Status Mike Hitchler, Manager Nuclear Facility Safety June 5, 2012 Safely Delivering DOE's Vision for the East Tennessee Technology Park Mission Existing UCOR Analyses * UCOR facilities at East Tennessee Technology Park (ETTP) and Oak Ridge National Laboratory (ORNL) use various plume models depending on when they were developed and by whom. - Some use MACCS or MACCS2 for dispersion evaluation. (~5 locations) - LLLW uses ingestion modeling (multiple locations)

299

Metal deposition using seed layers  

DOE Patents (OSTI)

Methods of forming a conductive metal layers on substrates are disclosed which employ a seed layer to enhance bonding, especially to smooth, low-roughness or hydrophobic substrates. In one aspect of the invention, the seed layer can be formed by applying nanoparticles onto a surface of the substrate; and the metallization is achieved by electroplating an electrically conducting metal onto the seed layer, whereby the nanoparticles serve as nucleation sites for metal deposition. In another approach, the seed layer can be formed by a self-assembling linker material, such as a sulfur-containing silane material.

Feng, Hsein-Ping; Chen, Gang; Bo, Yu; Ren, Zhifeng; Chen, Shuo; Poudel, Bed

2013-11-12T23:59:59.000Z

300

Shallow Seismic Investigation of Hydrogeologic Problems in the Brazos River Alluvium, Texas A&M Plantation, Burleson County, Texas  

E-Print Network (OSTI)

to be mapped by seismic methods. The alluvial deposits above the water transmitted compressional waves at an average velocity just greater than the velocity of sound in air. The saturated alluvial deposits transmitted seismic waves at an average velocity...

McBrayer, M.A.

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Modeling particle deposition on HVAC heat exchangers  

SciTech Connect

Fouling of fin-and-tube heat exchangers by particle deposition leads to diminished effectiveness in supplying ventilation and air conditioning. This paper explores mechanisms that cause particle deposition on heat exchanger surfaces. We present a model that accounts for impaction, diffusion, gravitational settling, and turbulence. Simulation results suggest that some submicron particles deposit in the heat exchanger core, but do not cause significant performance impacts. Particles between 1 and 10 {micro}m deposit with probabilities ranging from 1-20% with fin edge impaction representing the dominant mechanism. Particles larger than 10 {micro}m deposit by impaction on refrigerant tubes, gravitational settling on fin corrugations, and mechanisms associated with turbulent airflow. The model results agree reasonably well with experimental data, but the deposition of larger particles at high velocities is underpredicted. Geometric factors, such as discontinuities in the fins, are hypothesized to be responsible for the discrepancy.

Siegel, J.A.; Nazaroff, W.W.

2002-01-01T23:59:59.000Z

302

Orderly Deposition of Uncontaminated Graphene - Energy Innovation...  

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

Orderly Deposition of Uncontaminated Graphene Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummaryXiaogan Liang of Berkeley Lab has...

303

Paraffin deposition in offshore oil production.  

E-Print Network (OSTI)

??The extreme environmental conditions typically encountered in offshore oil operations lead to a number of problems. Cool deep sea temperatures promote particle formation and deposition… (more)

Elphingstone, Gerald Mason

2012-01-01T23:59:59.000Z

304

Predicting particle selection by deposit feeders  

Science Journals Connector (OSTI)

Jul 15, 1977 ... Abstract. A feeding model for a generalized, benthic deposit feeder is derived from a filter- ... study was supported by Energy and Research De-.

2000-01-08T23:59:59.000Z

305

Wet and dry deposition of Chernobyl releases  

Science Journals Connector (OSTI)

... (refs 16-18). An analysis of the available monitoring data indicates that the product wrf{ for deposition of 131I and 137Cs

M. J. Clark; F. B. Smith

1988-03-17T23:59:59.000Z

306

Economic recovery of oil trapped at fan margins using high angle wells and multiple hydraulic fractures. Annual report, September 28, 1995--September 27, 1996  

SciTech Connect

The digital fan margin in the northeast portion of the Yowlumne field contains significant reserves but is not economic to develop using verticle wells. Numerous interbedded shales and deteriorating rock properties limit producibility. In addition, extreme depths (13,000 ft) present a challenging environment for hydraulic fracturing and artificial lift. Lastly, a mature waterflood increases risk because of the uncertainty with size and location of flood fronts. This project attempts to demonstrate the effectiveness of exploiting the distal fan margin of this slope-basin clastic reservoir through the use of a high-angle well completed with multiple hydraulic-fracture treatments. The combination of a high-angle (or horizontal) well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional verticle wells while maintaining verticle communication between thin interbedded layers and the wellbore. The equivalent production rate and reserves of three verticle wells are anticipated at one-half to two-thirds the cost.

Niemeyer, B.L.

1997-09-01T23:59:59.000Z

307

Improved recovery from Gulf of Mexico reservoirs. Volume I (of 4): Task 1, conduct research on mud-rich submarine fans. Final report, February 14, 1995--October 13, 1996  

SciTech Connect

The objective for this portion of the research involved conducting field studies and laboratory investigations to develop and refine models for mud-rich submarine fan architectures used by seismic analysis and reservoir engineers. These research aspects have been presented in two papers as follows: (1) Bouma, A.H., {open_quotes}Review of Fine-Grained Submarine Fans and Turbidite Systems{close_quotes}; (2) Kirkova, J.T. and Lorenzo, J.M., {open_quotes}Synthetic Seismic Modeling of Measured Submarine Fans Sections, Case Study of the Tanqua Complex, Karoo, South Africa{close_quotes} The {open_quotes}Review of Fine-Grained Submarine Fans and Turbidite Systems{close_quotes} by Arnold Bouma discusses research targeted toward stimulating an increase in oil and gas recovery by developing new and improved geological understanding. The {open_quotes}Synthetic Seismic Modeling of Measured Submarine Fan Sections, Case Study of the Tanqua Complex, Karoo, South Africa{close_quotes} by J.T. Kirkova and J.M. Lorenso discusses the limitations of verticle resolution and how this affects the interpretation and characterization of submarine fan complexes.

Kimbrell, W.C.; Bassiouni, Z.A.; Bourgoyne, A.T.

1997-01-13T23:59:59.000Z

308

Colloidal particle deposition in turbulent flow  

SciTech Connect

A theoretical analysis is presented which describes the initial deposition of monodispersed spherical colloidal particles from a steady fully developed turbulent flow onto conduit walls. When the net particle-conduit electrical interaction potential is attractive, particle deposition is shown to be often governed by turbulent hydrodynamics. When the net particle-conduit electrical interaction potential possess a repulsive maximum, particle deposition to first order is uniform and depends solely on electrical interaction effects. The developed theoretical model specialized to orifice deposition with the use of Harwell Flow3D turbulence modelling software qualitatively described the deposition of 0.5 {mu}m silica particles onto glass orifices from an aqueous suspension. The effect of the electrical double layer on the rate of colloidal particle deposition in laminar flow has been described by Spielman and Friedlander (1), Dahneke (2), Bowen et al. (3) and Bowen and Epstein (4). This article describes the extension of their work to colloidal particle deposition under steady fully developed turbulent flow conditions. This article also reports the results of orifice particle deposition experiments which were conducted to qualitatively investigate the developed theoretical model.

Morton, D.S.

1994-05-01T23:59:59.000Z

309

Constraining Mercury Oxidation Using Wet Deposition  

E-Print Network (OSTI)

Constraining Mercury Oxidation Using Wet Deposition Noelle E. Selin and Christopher D. Holmes mercury oxidation [Selin & Jacob, Atmos. Env. 2008] 30 60 90 120 150 30 60 90 120 150 30 60 90 120 150 30 Influences on Mercury Wet Deposition · Hg wet dep = f(precipitation, [Hg(II)+Hg(P)]) Correlation (r2) between

Selin, Noelle Eckley

310

Simulation of Coal Ash Particle Deposition Experiments  

Science Journals Connector (OSTI)

Simulation of Coal Ash Particle Deposition Experiments† ... Ichikawa et al.(7) measured deposition behavior for ash particles from ashing tests for a series of five coals, using a nominally 1 m tall × 60 mm diameter ash-heating tube that was fitted with a cooled, temperature-controlled particle impact probe oriented at a 30° angle to the atmospheric pressure air flow. ...

Weiguo Ai; John M. Kuhlman

2011-01-20T23:59:59.000Z

311

MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS  

E-Print Network (OSTI)

LBNL-49339 MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS J.A. Siegel1,3 * and W.W. Nazaroff2 Department of Energy under contract DE-AC03-76SF00098. #12;MODELING PARTICLE DEPOSITION ON HVAC HEAT, such as discontinuities in the fins, are hypothesized to be responsible for the discrepancy. INDEX TERMS HVAC, Fouling

312

Method for gas-metal arc deposition  

DOE Patents (OSTI)

Method and apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites. The apparatus contains an arc chamber for confining a D.C. electrical arc discharge, the arc chamber containing an outlet orifice in fluid communication with a deposition chamber having a deposition opening in alignment wiht the orifice for depositing metal droplets on a coatable substrate. Metal wire is passed continuously into the arc chamber in alignment with the orifice. Electric arcing between the metal wire anode and the orifice cathode produces droplets of molten metal from the wire which pass through the orifice and into the deposition chamber for coating a substrate exposed at the deposition opening. When producing metal matrix composites, a suspension of particulates in an inert gas enters the deposition chamber via a plurality of feed openings below and around the orifice so that reinforcing particulates join the metal droplets to produce a uniform mixture which then coats the exposed substrate with a uniform metal matrix composite.

Buhrmaster, Carol L. (Corning, NY); Clark, Denis E. (Idaho Falls, ID); Smartt, Herschel B. (Idaho Falls, ID)

1990-01-01T23:59:59.000Z

313

Method for gas-metal arc deposition  

DOE Patents (OSTI)

Method and apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites are disclosed. The apparatus contains an arc chamber for confining a D.C. electrical arc discharge, the arc chamber containing an outlet orifice in fluid communication with a deposition chamber having a deposition opening in alignment with the orifice for depositing metal droplets on a coatable substrate. Metal wire is passed continuously into the arc chamber in alignment with the orifice. Electric arcing between the metal wire anode and the orifice cathode produces droplets of molten metal from the wire which pass through the orifice and into the deposition chamber for coating a substrate exposed at the deposition opening. When producing metal matrix composites, a suspension of particulates in an inert gas enters the deposition chamber via a plurality of feed openings below and around the orifice so that reinforcing particulates join the metal droplets to produce a uniform mixture which then coats the exposed substrate with a uniform metal matrix composite. 1 fig.

Buhrmaster, C.L.; Clark, D.E.; Smartt, H.B.

1990-11-13T23:59:59.000Z

314

Apparatus for gas-metal arc deposition  

DOE Patents (OSTI)

Apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites. The apparatus contains an arc chamber for confining a D.C. electrical arc discharge, the arc chamber containing an outlet orifice in fluid communication with a deposition chamber having a deposition opening in alignment with the orifice for depositing metal droplets on a coatable substrate. Metal wire is passed continuously into the arc chamber in alignment with the orifice. Electric arcing between the metal wire anode and the orifice cathode produces droplets of molten metal from the wire which pass through the orifice and into the deposition chamber for coating a substrate exposed at the deposition opening. When producing metal matrix composites, a suspenion of particulates in an inert gas enters the deposition chamber via a plurality of feed openings below and around the orifice so that reinforcing particulates join the metal droplets to produce a uniform mixture which then coats the exposed substrate with a uniform metal matrix composite.

Buhrmaster, Carol L. (Corning, NY); Clark, Denis E. (Idaho Falls, ID); Smartt, Herschel B. (Idaho Falls, ID)

1991-01-01T23:59:59.000Z

315

Methods for predicting wax precipitation and deposition  

SciTech Connect

Removal of wax from wells and flowlines can account for significant additional operating costs. To evaluate these potential costs, the operating conditions that allow waxes to precipitate in the wellbore must be identified, and deposition rates must be estimated to determine the costs associated with removal of wax deposits. Presented in this paper are laboratory and analytic methods that can be used to estimate both the critical operating conditions and the deposition rates. The laboratory tests and analysis presented may be used to characterize any type of oil.

Weingarten, J.S.; Euchner, J.A.

1988-02-01T23:59:59.000Z

316

Selective deposition of silicon and silicon-germanium alloys by rapid thermal chemical vapor deposition  

SciTech Connect

Selective deposition of SiGe alloys by rapid thermal deposition has been studied using a commercially available Rapid Thermal Chemical Vapor Deposition (RTCVD) cluster tool. The precursors used in this work were dichlorosilane and germane diluted in either hydrogen or argon. An initial characterization was performed to find the appropriate temperature and GeH{sub 4} flow ranges to deposit epitaxial layers with low surface roughness. For layers with higher germanium concentration lower deposition temperatures are required to minimize surface roughness. The effects of the dilutant gas on the deposition were examined. An H{sub 2} dilutant affects the deposition by consuming chlorine released by the SiCl{sub 2}H{sub 2} and forming HCl. When Ar is used as the dilutant, more chlorine is available for other reactions that can result in etching of the silicon surface. Finally, the effects of pre-deposition treatment were determined. When compared to a wet HF dip, a gas/vapor phase HF/methanol native oxide removal treatment appears to increase the initiation time for the epitaxial deposition reaction. This is most likely due to increased fluorine termination of the surface. When a wet HF or HF/methanol native oxide removal is followed by a UV-Cl{sub 2} process, the deposition reaction initiation time is reduced. The UV-Cl{sub 2} process was also found to etch silicon through the native oxide.

Grant, J.M.; Ang, M.; Allen, L.R. [Sharp Microelectronics Technology, Inc., Camas, WA (United States)

1996-12-01T23:59:59.000Z

317

Deposition of Platinum Nanoparticles on Carbon Nanotubes by Supercriti...  

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

Deposition of Platinum Nanoparticles on Carbon Nanotubes by Supercritical Fluid Method. Deposition of Platinum Nanoparticles on Carbon Nanotubes by Supercritical Fluid Method....

318

Quaternary Borate Deposits As A Geothermal Exploration Tool In...  

Open Energy Info (EERE)

Borate Deposits As A Geothermal Exploration Tool In The Great Basin Abstract A close spatial relationship exists between Quaternary borate deposits and moderate to high...

319

Supercritical Fluid Immersion Deposition: A New Process for Selective...  

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

property of immersion deposition, enables the SFID technique to selectively deposit metal films in small features. SFID may also provide a new method to fabricate palladium...

320

The Process Fundamentals and Parameters of Electro-Spark Deposition.  

E-Print Network (OSTI)

??Electrospark Deposition (ESD) is a micro-bonding process that is capable of depositing wear and corrosion resistance coating to repair, to improve and to extend the… (more)

Tang, Siu Kei

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Resuspension and dry deposition research needs  

SciTech Connect

The author concludes that better predictive models are needed for the signifcant health, ecological, and economic impacts of resuspended particles and their subsequent dry deposition. Both chemical and radioactive aerosols are discussed. (PSB)

Sehmel, G.A.

1983-01-01T23:59:59.000Z

322

Linked Deposit Loan Program (West Virginia)  

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

The Linked Deposit Loan Program is targeted at small, private firms with 50 or fewer employees and gross annual revenues of $5 million or less comes. This loan offered through the West Virginia...

323

Small Business Linked Deposit Program (Oklahoma)  

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

The Small Business Linked Deposit Program provides below-market interest rates for qualified small businesses and certified industrial parks through local financing sources. Loans are for a two...

324

CALCIUM CARBONATE DEPOSITION IN GEOTHERMAL WELLBORES  

E-Print Network (OSTI)

geothermal energy exploration and development are most important. Geothermal resources in Costa Rica have of energy development in Costa Rica. The Miravalles geothermCALCIUM CARBONATE DEPOSITION IN GEOTHERMAL WELLBORES MIRAVALLES GEOTHERMAL FIELD COSTA RICA

Stanford University

325

Part I: Typology of Uranium Deposits  

Science Journals Connector (OSTI)

A variety of global and regional classification schemes for uranium deposits have been proposed in the past by a number of geoscientists including Heinrich (1958), Roubault (1958), Ruzicka (1971), Ziegler (197...

Franz J. Dahlkamp

2009-01-01T23:59:59.000Z

326

Semiconductor assisted metal deposition for nanolithography applications  

DOE Patents (OSTI)

An article of manufacture and method of forming nanoparticle sized material components. A semiconductor oxide substrate includes nanoparticles of semiconductor oxide. A modifier is deposited onto the nanoparticles, and a source of metal ions are deposited in association with the semiconductor and the modifier, the modifier enabling electronic hole scavenging and chelation of the metal ions. The metal ions and modifier are illuminated to cause reduction of the metal ions to metal onto the semiconductor nanoparticles.

Rajh, Tijana (Naperville, IL); Meshkov, Natalia (Downers Grove, IL); Nedelijkovic, Jovan M. (Belgrade, YU); Skubal, Laura R. (West Brooklyn, IL); Tiede, David M. (Elmhurst, IL); Thurnauer, Marion (Downers Grove, IL)

2001-01-01T23:59:59.000Z

327

Semiconductor assisted metal deposition for nanolithography applications  

DOE Patents (OSTI)

An article of manufacture and method of forming nanoparticle sized material components. A semiconductor oxide substrate includes nanoparticles of semiconductor oxide. A modifier is deposited onto the nanoparticles, and a source of metal ions are deposited in association with the semiconductor and the modifier, the modifier enabling electronic hole scavenging and chelation of the metal ions. The metal ions and modifier are illuminated to cause reduction of the metal ions to metal onto the semiconductor nanoparticles.

Rajh, Tijana (Naperville, IL); Meshkov, Natalia (Downers Grove, IL); Nedelijkovic, Jovan M. (Belgrade, YU); Skubal, Laura R. (West Brooklyn, IL); Tiede, David M. (Elmhurst, IL); Thurnauer, Marion (Downers Grove, IL)

2002-01-01T23:59:59.000Z

328

Hydrocarbon and Deposit Morphology Effects on EGR Cooler Deposit Stability and Removal  

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

This paper reports on studies carried out at ORNL to examine the shear force required to remove particles from a well-developed EGR cooler deposit.

329

2014-09-16 Issuance: Energy Conservation Standards for Ceiling Fans; Notice of Public Meeting and Availability of Preliminary Technical Support Document  

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

This document is a pre-publication Federal Register notice of public meeting and availability of preliminary technical support document regarding energy conservation standards for ceiling fans, as issued by the Deputy Assistant Secretary on September 16, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

330

2014-10-27 Issuance: Energy Conservation Standards for Ceiling Fan Light Kits; Notice of Public Meeting and Availability of the Preliminary Technical Support Document  

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

This document is a pre-publication Federal Register notice of public meeting and availability of the preliminary technical support document regarding energy conservation standards for ceiling fan light kits, as issued by the Deputy Assistant Secretary for Energy Efficiency on October 27, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

331

2014-12-31 Issuance: Energy Conservation Standards for Commercial and Industrial Fans and Blowers; Extension of Comment Period for Notice of Data Availability  

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

This document is a pre-publication Federal Register extension of comment period for notice of data availability regarding energy conservation standards for commercial and industrial fans and blowers, as issued by the Deputy Assistant Secretary for Energy Efficiency on December 31, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

332

The global distribution of large subaerial distributary fluvial systems  

E-Print Network (OSTI)

Berm ejo Salado Parana Gandak Kosi Tista Son White Nile Okavango Bolivia Brazil Bolivia Bolivia, Paraguay Paraquay, Argentina, Bolivia Argentina Argentina Argentina, Paraguay India India, Nepal India, Bangladesh India Sudan... (e. g. , the Markanda fan), and large, low-energy fans (e. g. , the Okavango fan). It should be noted that neither of the above definitions specify unique facies assemblages or fluvial regimes on the alluvial fan, nor do they include size or slope...

Gwynn, David Wilkinson

2012-06-07T23:59:59.000Z

333

Apparatus for laser assisted thin film deposition  

DOE Patents (OSTI)

A pulsed laser deposition apparatus uses fiber optics to deliver visible output beams. One or more optical fibers are coupled to one or more laser sources, and delivers visible output beams to a single chamber, to multiple targets in the chamber or to multiple chambers. The laser can run uninterrupted if one of the deposition chambers ceases to operate because other chambers can continue their laser deposition processes. The laser source can be positioned at a remote location relative to the deposition chamber. The use of fiber optics permits multi-plexing. A pulsed visible laser beam is directed at a generally non-perpendicular angle upon the target in the chamber, generating a plume of ions and energetic neutral species. A portion of the plume is deposited on a substrate as a thin film. A pulsed visible output beam with a high pulse repetition frequency is used. The high pulse repetition frequency is greater than 500 Hz, and more preferably, greater than about 1000 Hz. Diamond-like-carbon (DLC) is one of the thin films produced using the apparatus. 9 figs.

Warner, B.E.; McLean, W. II

1996-02-13T23:59:59.000Z

334

Source-attribution for atmospheric mercury deposition: Where does the mercury in mercury deposition come from?  

E-Print Network (OSTI)

1 Source-attribution for atmospheric mercury deposition: Where does the mercury in mercury of the Mercury Working Group, Office of Air Quality, Indiana Department of Environmental Management (IDEM) April 21, 2005 #12;2 For mercury, how important is atmospheric deposition relative to other loading

335

Method for deposition of a conductor in integrated circuits  

DOE Patents (OSTI)

A method is described for fabricating integrated semiconductor circuits and, more particularly, for the selective deposition of a conductor onto a substrate employing a chemical vapor deposition process. By way of example, tungsten can be selectively deposited onto a silicon substrate. At the onset of loss of selectivity of deposition of tungsten onto the silicon substrate, the deposition process is interrupted and unwanted tungsten which has deposited on a mask layer with the silicon substrate can be removed employing a halogen etchant. Thereafter, a plurality of deposition/etch back cycles can be carried out to achieve a predetermined thickness of tungsten.

Creighton, J. Randall (Albuquerque, NM); Dominguez, Frank (Albuquerque, NM); Johnson, A. Wayne (Albuquerque, NM); Omstead, Thomas R. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

336

Investigation of active faulting at the Emigrant Peak fault in Nevada using shallow seismic reflection and ground penetrating radar  

E-Print Network (OSTI)

The objective of this study was to assess fault displacement, off-fault deformation, and alluvial fan stratigraphy at the Emigrant Peak fault zone (EPFZ) in Fish Lake Valley, Nevada utilizing shallow seismic reflection (SSR) and ground penetrating...

Christie, Michael Wayne

2007-12-18T23:59:59.000Z

337

Role of gas phase reactions in subatmospheric chemical-vapor deposition ozone/TEOS processes for oxide deposition  

E-Print Network (OSTI)

-vapor deposition. Our results for oxide deposition show optimum process window around 200 Torr for producing films a po- tentially optimum process window in which film properties, deposition rates, film uniformity requires high quality dielectric films that can be deposited rapidly and conformally on high aspect ratio

Rubloff, Gary W.

338

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of January I to March 31, 1998. The direct numerical simulation of particle removal process in turbulent gas flows was completed. Variations of particle trajectories are studied. It is shown that the near wall vortices profoundly affect the particle removal process in turbulent boundary layer flows. Experimental data for transport and deposition of fibrous particles in the aerosol wind tunnel was obtained. The measured deposition velocity for irregular fibrous particles is compared with the empirical correlation and the available data for glass fibers and discussed. Additional progress on the sublayer model for evaluating the particle deposition and resuspension in turbulent flows was made.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

339

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of October 1 to December 31, 1996. In particular, the sublayer model for evaluating the particle deposition in turbulent flows was extended to include the effect of particle rebound. A new more advance flow model for the near wall vortices is also used in these analysis. The computational model for simulating particle transport in turbulent flows was used to analyze the dispersion and deposition of particles in a recirculating flow region. The predictions of the particle resuspension model is compared with the experimental data. It is shown that when the effects of the near wall flow structure, as we as the surface roughness are included the model agrees with the available experimental data. Considerable progress was also made in the direct numerical simulation of particle removal process in turbulent gas flows. Experimental data for transport and deposition of glass fiber in the aerosol wind tunnel was also obtained.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

340

Glow discharge plasma deposition of thin films  

DOE Patents (OSTI)

A glow discharge plasma reactor for deposition of thin films from a reactive RF glow discharge is provided with a screen positioned between the walls of the chamber and the cathode to confine the glow discharge region to within the region defined by the screen and the cathode. A substrate for receiving deposition material from a reactive gas is positioned outside the screened region. The screen is electrically connected to the system ground to thereby serve as the anode of the system. The energy of the reactive gas species is reduced as they diffuse through the screen to the substrate. Reactive gas is conducted directly into the glow discharge region through a centrally positioned distribution head to reduce contamination effects otherwise caused by secondary reaction products and impurities deposited on the reactor walls.

Weakliem, Herbert A. (Pennington, NJ); Vossen, Jr., John L. (Bridgewater, NJ)

1984-05-29T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Chemical vapor deposition of group IIIB metals  

DOE Patents (OSTI)

Coatings of Group IIIB metals and compounds thereof are formed by chemical vapor deposition, in which a heat decomposable organometallic compound of the formula given in the patent where M is a Group IIIB metal, such as lanthanum or yttrium and R is a lower alkyl or alkenyl radical containing from 2 to about 6 carbon atoms, with a heated substrate which is above the decomposition temperature of the organometallic compound. The pure metal is obtained when the compound of the formula 1 is the sole heat decomposable compound present and deposition is carried out under nonoxidizing conditions. Intermetallic compounds such as lanthanum telluride can be deposited from a lanthanum compound of formula 1 and a heat decomposable tellurium compound under nonoxidizing conditions.

Erbil, A.

1989-11-21T23:59:59.000Z

342

Atmospheric Pressure Deposition for Electrochromic Windows  

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

Atmospheric Pressure Deposition Atmospheric Pressure Deposition for Electrochromic Windows TDM - Karma Sawyer Robert C. Tenent National Renewable Energy Laboratory robert.tenent@nrel.gov 303-384-6775 4/4/2013 Insulating Glass Unit (IGU) Glass Transparent Conductor (TC) Active Electrode Counter Electrode Ion Conductor 2 | Building Technologies Office eere.energy.gov Purpose and Objectives * Expense - Current market price of $50-$100/ft 2 - Projections indicate under $20/ft 2 needed - A new production paradigm is required * Aesthetics - Architects hesitant to adopt "smurf glass"

343

Atmospheric Pressure Deposition for Electrochromic Windows  

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

Atmospheric Pressure Deposition Atmospheric Pressure Deposition for Electrochromic Windows TDM - Karma Sawyer Robert C. Tenent National Renewable Energy Laboratory robert.tenent@nrel.gov 303-384-6775 4/4/2013 Insulating Glass Unit (IGU) Glass Transparent Conductor (TC) Active Electrode Counter Electrode Ion Conductor 2 | Building Technologies Office eere.energy.gov Purpose and Objectives * Expense - Current market price of $50-$100/ft 2 - Projections indicate under $20/ft 2 needed - A new production paradigm is required * Aesthetics - Architects hesitant to adopt "smurf glass"

344

Treating paraffin deposits in producing oil wells  

SciTech Connect

Paraffin deposition has been a problem for operators in many areas since the beginning of petroleum production from wells. An extensive literature search on paraffin problems and methods of control has been carried out, and contact was made with companies which provide chemicals to aid in the treatment of paraffin problems. A discussion of the nature of paraffins and the mechanisms of this deposition is presented. The methods of prevention and treatment of paraffin problems are summarized. Suggested procedures for handling paraffin problems are provided. Suggestions for areas of further research testing are given.

Noll, L.

1992-01-01T23:59:59.000Z

345

Polymer-assisted deposition of films  

DOE Patents (OSTI)

A polymer assisted deposition process for deposition of metal nitride films and the like is presented. The process includes solutions of one or more metal precursor and soluble polymers having binding properties for the one or more metal precursor. After a coating operation, the resultant coating is heated at high temperatures under a suitable atmosphere to yield metal nitride films and the like. Such films can be conformal on a variety of substrates including non-planar substrates. In some instances, the films can be epitaxial in structure and can be of optical quality. The process can be organic solvent-free.

McCleskey,Thomas M. (Los Alamos, NM); Burrell,Anthony K. (Los Alamos, NM); Jia,Quanxi (Los Alamos, NM); Lin,Yuan (Chandler, AZ)

2012-02-28T23:59:59.000Z

346

Nitrogen Deposition in the Southern High Plains  

E-Print Network (OSTI)

Nitrogen Deposition in the Southern High Plains Nitrogen is necessary for life on earth, but getting too much of it can be harmful. Recent research in delicate alpine watersheds of the western United States has suggested that the amount... Nitrogen Deposition in the Southern High Plains Conservation of mass: It?s not just a good idea, it?s the law Nitrogen, along with every other element in nature, obeys certain physical laws. The first of those laws, the law of conservation of mass...

Upadhyay, Jeetendra; Auvermann, Brent W.; Bush, K. Jack; Mukhtar, Saqib

2008-02-11T23:59:59.000Z

347

Advances in the electrospark deposition coating process  

Science Journals Connector (OSTI)

Electrospark deposition (ESD) is a pulsed?arc microwelding process using short?duration high?current electrical pulses to deposit an electrode material on a metallic substrate. It is one of the few methods available by which a fused metallurgically bonded coating can be applied with such a low total heat input that the bulk substrate material remains at or near ambient temperatures. The short duration of the electrical pulse allows an extremely rapid solidification of the deposited material and results in an exceptionally fine?grained homogeneous coating that approaches (and with some materials actually is) an amorphous structure. This structure is believed to contribute to the good tribological and corrosion performance observed for hardsurfacing materials used in the demanding environments of high temperatures liquid metals and neutron irradiation. A brief historical review of the process is provided followed by descriptions of the present state of the art and of the performance and applications of electrospark deposition coating in liquid–metal?cooled nuclear reactors.

Roger N. Johnson; G. L. Sheldon

1986-01-01T23:59:59.000Z

348

Electroless Nanoparticle Film Deposition Compatible with Photolithography,  

E-Print Network (OSTI)

Electroless Nanoparticle Film Deposition Compatible with Photolithography, Microcontact Printing; Revised Manuscript Received October 14, 2002 ABSTRACT Nanoparticles of Au, Pd, and Pt form spontaneously In this paper, we demonstrate that Au, Pd, and Pt nanoparticle films, produced through a spontaneous electroless

Porter Jr., Lon A.

349

CALCULATION OF ION ENERGY-DEPOSITION SPECTRA  

E-Print Network (OSTI)

CALCULATION OF ION ENERGY-DEPOSITION SPECTRA IN SILICON, LITHIUM-FLUORIDE, BORON, AND BORON CARBIDE by J.K. Shultis and D.S. McGregor Department of Mechanical and Nuclear Engineering Kansas State University Manhattan, Kansas 55606 published as Report 299 ENGINEERING EXPERIMENT STATION College

Shultis, J. Kenneth

350

Chemical vapor deposition of aluminum oxide  

DOE Patents (OSTI)

An aluminum oxide film is deposited on a heated substrate by CVD from one or more alkylaluminum alkoxide compounds having composition R.sub.n Al.sub.2 (OR').sub.6-n, wherein R and R' are alkyl groups and n is in the range of 1 to 5.

Gordon, Roy (Cambridge, MA); Kramer, Keith (Cleveland, OH); Liu, Xinye (Cambridge, MA)

2000-01-01T23:59:59.000Z

351

ADEPT. aerosol deposition in cylindrical pipes  

SciTech Connect

ADEPT calculates the deposition of aerosols in straight cylindrical pipes during turbulent air flow. Aerosol deposition is calculated in a time-dependent manner based on empirical correlations for turbulent flow in pipes. The calculated deposition during a single time interval is cumulative with that of previous time intervals and results in a decreasing inner diameter of the pipe. The calculated deposition is assumed uniform over the length of the pipe. The entering aerosol distribution is specified by the user in the form of a log-normal distribution of accumulated mass versus particle size and may be time dependent. Entering flow conditions are also specified by the user and may also be time dependent. For simplicity and generality, the geometry implicit in the program is that of a cylindrical pipe with no bends or fittings. The flow is turbulent and monodirectional; only one set of inlet conditions may be applied at a given time. The flow parameters are not calculated along the length of pipe; therefore, the dynamic behavior of the aerosol within the pipe as well as the effects of reentrainment cannot be determined explicitly. A typical problem requires 2 minutes of CPU time.

Fazekas, P.; Tewarson, S.C (Burns and Roe, Oradell, NJ (United States))

1985-01-01T23:59:59.000Z

352

ADEPT. Aerosol Deposition in Cylindrical Pipes  

SciTech Connect

ADEPT calculates the deposition of aerosols in straight cylindrical pipes during turbulent air flow. Aerosol deposition is calculated in a time-dependent manner based on empirical correlations for turbulent flow in pipes. The calculated deposition during a single time interval is cumulative with that of previous time intervals and results in a decreasing inner diameter of the pipe. The calculated deposition is assumed uniform over the length of the pipe. The entering aerosol distribution is specified by the user in the form of a log-normal distribution of accumulated mass versus particle size and may be time dependent. Entering flow conditions are also specified by the user and may also be time dependent. For simplicity and generality, the geometry implicit in the program is that of a cylindrical pipe with no bends or fittings. The flow is turbulent and monodirectional; only one set of inlet conditions may be applied at a given time. The flow parameters are not calculated along the length of pipe; therefore, the dynamic behavior of the aerosol within the pipe as well as the effects of reentrainment cannot be determined explicitly. A typical problem requires 2 minutes of CPU time.

Fazekas, P.; Tewarson, S.C [Burns and Roe, Oradell, NJ (United States)

1985-01-01T23:59:59.000Z

353

Supercritical Fluid Immersion Deposition: A New Process for Selective Deposition of Metal Films on Silicon Substrates  

SciTech Connect

Supercritical CO2 is used as a new solvent for immersion deposition, a galvanic displacement process traditionally carried out in aqueous HF solutions containing metal ions, to selectively develop metal films on featured or non-featured silicon substrates. Components of supercritical fluid immersion deposition (SFID) solutions for fabricating Cu and Pd films on silicon substrates are described along with the corresponding experimental setup and procedure. Only silicon substrates exposed and reactive to SFID solutions can be coated. The highly pressurized and gas-like supercritical CO2, combined with the galvanic displacement property of immersion deposition, enables the SFID technique to selectively deposit metal films in small features. SFID may also provide a new method to fabricate palladium silicide in small features or to metallize porous silicon.

Ye, Xiangrong; Wai, Chien M.; Lin, Yuehe; Young, James S.; Engelhard, Mark H.

2005-01-01T23:59:59.000Z

354

Cobalt cluster-assembled thin films deposited by low energy cluster beam deposition: Structural and magnetic investigations of deposited layers  

SciTech Connect

Cobalt cluster-assembled thin films were deposited on amorphous-carbon-coated copper grids and on silicon substrates at room temperature by low energy cluster beam deposition. Characterizations using high-resolution transmission electronic microscopy and atomic force microscopy reveal randomly stacked agglomerates of 9-11 nm diameter, which are themselves composed of small 3.6 nm diameter fcc cobalt clusters. The films are ferromagnetic up to room temperature and above, which implies that the clusters are exchange coupled. The approach to saturation is analyzed within the random anisotropy model. The values of the exchange coefficient A and the anisotropy constant K then derived are discussed. The temperature dependence of the coercivity below 100 K is discussed in terms of thermal activation effects. All results indicate that the fundamental entity governing the magnetic behaviors is constituted by the 9-11 nm diameter agglomerates rather than by the clusters themselves.

Dumas-Bouchiat, F.; Nagaraja, H. S.; Rossignol, F.; Champeaux, C.; Trolliard, G.; Catherinot, A.; Givord, D. [Centre de Projet Films Minces et Microdispositifs pour Telecommunications, SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); SPCTS, UMR CNRS 6638, ENSCI, 47 Avenue Albert Thomas, 87065 Limoges Cedex (France); Centre de Projet Films Minces et Microdispositifs pour Telecommunications, SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); Centre de Projet Films Minces et Microdispositifs pour Telecommunications, SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); Laboratoire Louis Neel, UPR CNRS 5051, BP 166, F-38042 Grenoble Cedex (France)

2006-09-15T23:59:59.000Z

355

Improving Best Air Conditioner Efficiency by 20-30% through a High Efficiency Fan and Diffuser Stage Coupled with an Evaporative Condenser Pre-Cooler  

SciTech Connect

The Florida Solar Energy Center (FSEC) conducted a research project to improve the best residential air conditioner condenser technology currently available on the market by retrofitting a commercially-available unit with both a high efficiency fan system and an evaporative pre-cooler. The objective was to integrate these two concepts to achieve an ultra-efficient residential air conditioner design. The project produced a working prototype that was 30% more efficient compared to the best currently-available technologies; the peak the energy efficiency ratio (EER) was improved by 41%. Efficiency at the Air-Conditioning and Refrigeration Institute (ARI) standard B-condition which is used to estimate seasonal energy efficiency ratio (SEER), was raised from a nominal 21 Btu/Wh to 32 Btu/Wh.

Parker, Danny S; Sherwin, John R; Raustad, Richard

2014-04-10T23:59:59.000Z

356

Aeolian depositional landforms of the south eastern Mojave Desert, California  

E-Print Network (OSTI)

Remote sensing and photo interpretation techniques are used to describe and map aeolian deposits found along two sediment transport corridors in the south eastern Mojave Desert. The first pathway and associated sand deposits extend eastward from...

Alvis, William Thomas

2000-01-01T23:59:59.000Z

357

Study of Paraffin Wax Deposition in Seasonally Pigged Pipelines  

Science Journals Connector (OSTI)

Waxy crude oil pipelines are pigged periodically to scrape the adhered wax deposit from the pipe wall and remove it from the pipeline. If wax deposition on the pipe wall is not ... severe and there is not much ch...

Wang Wenda; Huang Qiyu; Huang Jun; Pang Quan…

2014-03-01T23:59:59.000Z

358

All graphene electromechanical switch fabricated by chemical vapor deposition  

E-Print Network (OSTI)

We demonstrate an electromechanical switch comprising two polycrystalline graphene films; each deposited using ambient pressure chemical vapor deposition. The top film is pulled into electrical contact with the bottom film ...

Milaninia, Kaveh M.

359

Occurrence of Boron Phosphate in Fireside Deposit from an Economizer  

Science Journals Connector (OSTI)

... recently examined here. This deposit was one of several typical deposits from the fireside of economizers and boiler tubes of certain high-pressure boiler plants which were examined in 1942 and ... by the Central Electricity Board.

L. M. CLARK; J. HASLAM

1945-09-08T23:59:59.000Z

360

PLEISTOCENE ALLUVIAL STAGES IN NORTHWESTERN OREGON  

Science Journals Connector (OSTI)

...pyroclasties of the Cascade Mountains must be pre-Pleistocene, probably Pliocene, and the fluviatile quartzite conglomerate near Troutdale, in-cluded by Bretz' in his Satsop formation, must be still older-perhaps the equivalent of the Miocene Ellens-burg...

Ira S. Allison

1936-05-08T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Surface acoustic wave dust deposition monitor  

DOE Patents (OSTI)

A system is disclosed for using the attenuation of surface acoustic waves to monitor real time dust deposition rates on surfaces. The system includes a signal generator, a tone-burst generator/amplifier connected to a transmitting transducer for converting electrical signals into acoustic waves. These waves are transmitted through a path defining means adjacent to a layer of dust and then, in turn, transmitted to a receiving transducer for changing the attenuated acoustic wave to electrical signals. The signals representing the attenuated acoustic waves may be amplified and used in a means for analyzing the output signals to produce an output indicative of the dust deposition rates and/or values of dust in the layer. 8 figs.

Fasching, G.E.; Smith, N.S. Jr.

1988-02-12T23:59:59.000Z

362

ON OIL SHALE MINING IN THE ESTONIA DEPOSIT  

E-Print Network (OSTI)

age) cut the Estonian oil shale-kukersite deposits. Two younger groups of structures are typical fault

K. Sokman; V. Kattai; R. Vaher; Y. J. Systra

363

Formation of amorphous metal alloys by chemical vapor deposition  

DOE Patents (OSTI)

Amorphous alloys are deposited by a process of thermal dissociation of mixtures of organometallic compounds and metalloid hydrides,e.g., transition metal carbonyl, such as nickel carbonyl and diborane. Various sizes and shapes of deposits can be achieved, including near-net-shape free standing articles, multilayer deposits, and the like. Manipulation or absence of a magnetic field affects the nature and the structure of the deposit. 1 fig.

Mullendore, A.W.

1988-03-18T23:59:59.000Z

364

Deposition of Contiguous Metal Adlayer on Transition Metal Nanostructu...  

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

and Abstract Primary Lab Date Application 20100099012 Application 20100099012 Electrocatalyst Synthesized by Depositing a Contiguous Metal Adlayer on Transition Metal...

365

Deposition of nanolayers by means of dense plasma focus  

Science Journals Connector (OSTI)

In our preliminary experiments, reported in this paper, dense plasma focus (DPF) device is used for deposition...

M. Chernyshova; I. Ivanova-Stanik; L. Karpi?ski…

2006-10-01T23:59:59.000Z

366

Electrostatic force assisted deposition of graphene  

DOE Patents (OSTI)

An embodiment of a method of depositing graphene includes bringing a stamp into contact with a substrate over a contact area. The stamp has at least a few layers of the graphene covering the contact area. An electric field is developed over the contact area. The stamp is removed from the vicinity of the substrate which leaves at least a layer of the graphene substantially covering the contact area.

Liang, Xiaogan (Berkeley, CA)

2011-11-15T23:59:59.000Z

367

Stationary phase deposition based on onium salts  

DOE Patents (OSTI)

Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon based columns, especially microfabricated metal columns. Non-silicon microfabricated columns may be manufactured and processed at a fraction of the cost of silicon-based columns. In addition, the method can be used to phase-coat conventional capillary columns or silicon-based microfabricated columns.

Wheeler, David R. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM); Dirk, Shawn M. (Albuquerque, NM); Trudell, Daniel E. (Albuquerque, NM)

2008-01-01T23:59:59.000Z

368

Chemical deposition methods using supercritical fluid solutions  

DOE Patents (OSTI)

A method for depositing a film of a desired material on a substrate comprises dissolving at least one reagent in a supercritical fluid comprising at least one solvent. Either the reagent is capable of reacting with or is a precursor of a compound capable of reacting with the solvent to form the desired product, or at least one additional reagent is included in the supercritical solution and is capable of reacting with or is a precursor of a compound capable of reacting with the first reagent or with a compound derived from the first reagent to form the desired material. The supercritical solution is expanded to produce a vapor or aerosol and a chemical reaction is induced in the vapor or aerosol so that a film of the desired material resulting from the chemical reaction is deposited on the substrate surface. In an alternate embodiment, the supercritical solution containing at least one reagent is expanded to produce a vapor or aerosol which is then mixed with a gas containing at least one additional reagent. A chemical reaction is induced in the resulting mixture so that a film of the desired material is deposited.

Sievers, Robert E. (Boulder, CO); Hansen, Brian N. (Boulder, CO)

1990-01-01T23:59:59.000Z

369

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of October I to December 31, 1997. The direct numerical simulation of particle removal process in turbulent gas flows was continued. Variations of vorticity contours which are averaged over a short time duration are studied. It is shown that the near wall vortices profoundly affect the particle removal process in turbulent boundary layer flows. The sublayer model for evaluating the particle deposition in turbulent flows was extended to include the effect of particle rebound. A new more advance flow model for the near wall vortices is also used in these analysis. Sample particle trajectories are obtained and discussed. Experimental data for transport and deposition of fibrous particles in the aerosol wind tunnel was obtained. The measured deposition velocity is compared with the empirical correlation and the available data and discussed. Particle resuspension process in turbulent flows are studied. The model is compared with the experimental data. It is shown that when the effects of the near wall flow structure, as well as the surface roughness are included the model agrees with the available experimental data.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

370

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of July 1 to September 30, 1997. The direct numerical simulation of particle removal process in turbulent gas flows was continued. Variations of vorticity contours which are averaged over a short time duration are studied. It is shown that the near wall vortices profoundly affect the particle removal process in turbulent boundary layer flows. The sublayer model for evaluating the particle deposition in turbulent flows was extended to include the effect of particle rebound. A new more advance flow model for the near wall vortices is also used in these analysis. Sample particle trajectories are obtained and discussed. Experimental data for transport and deposition of fibrous particles in the aerosol wind tunnel was obtained. The measured deposition velocity is compared with the empirical correlation and the available data and discussed. Particle resuspension process in turbulent flows are studied. The model is compared with the experimental data. It is shown that when the effects of the near wall flow structure, as well as the surface roughness are included the model agrees with the available experimental data.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

371

Vacuum-Deposited Planar Heterojunction Polymer Solar Cells  

Science Journals Connector (OSTI)

Vacuum-Deposited Planar Heterojunction Polymer Solar Cells ... Bilayer heterojunction solar cells were fabricated by sequential deposition of P3HT and C60 and the photovoltaic response measured. ... organic solar cells; conjugated polymers; poly(3-hexylthiophene); vacuum thermal deposition; thin films ...

Peter Kovacik; Giuseppe Sforazzini; Andrew G. Cook; Shawn M. Willis; Patrick S. Grant; Hazel E. Assender; Andrew A. R. Watt

2010-12-14T23:59:59.000Z

372

RISO-M-2438 Dry deposition and resuspension of  

E-Print Network (OSTI)

CO RISO-M-2438 2 S Dry deposition and resuspension of particulate matter in city environments N 1984 få #12;RIS�-M-2438 DRY DEPOSITION AND RESUSPENSION OF PARITUCLATE NATTER IN CITY ENVIRONMENTS N.O. Jensen Abstract. The report describes, mostly in qualitative terms, the deposition and resuspension

373

Model calculates was deposition for North Sea oils  

SciTech Connect

A model for calculation of wax formation and deposition in pipelines and process equipment has been developed along with a new method for wax-equilibrium calculations using input from TBP distillation cuts. Selected results from the wax formation and deposition model have been compared with laboratory data from wax equilibrium and deposition experiments, and there have been some field applications of the model.

Majeed, A.; Bringedal, B.; Overa, S. (Norsk Hydro, Stabekk (NO))

1990-06-18T23:59:59.000Z

374

Simple approaches for measuring dry atmospheric nitrogen deposition to watersheds  

E-Print Network (OSTI)

'' and spatial variations of gaseous dry N deposition (i.e., nitrogen dioxide (NO2) and ammonia (NH3)), thoughSimple approaches for measuring dry atmospheric nitrogen deposition to watersheds Heather E. Golden the effects of atmospheric nitrogen (N) deposition on surface water quality requires accurate accounts

Elliott, Emily M.

375

UNIVERSITY of CALIFORNIA ATOMIC LAYER DEPOSITION OF ALUMINUM OXIDE  

E-Print Network (OSTI)

UNIVERSITY of CALIFORNIA SANTA CRUZ ATOMIC LAYER DEPOSITION OF ALUMINUM OXIDE A thesis submitted deposition (ALD) of aluminum oxide on crystalline silicon and anodized aluminum substrates. A homemade ALD system is used with trimethylaluminum (TMA) and water as precursors to deposit uniform aluminum oxide

Belanger, David P.

376

TiOx Films Deposited by Plasma Enhanced Chemical Vapour Deposition Method in Atmospheric Dielectric Barrier Discharge Plasma  

Science Journals Connector (OSTI)

The plasma enhanced chemical vapour deposition method applying atmospheric dielectric barrier discharge (ADBD) plasma was used for TiOx thin films deposition employing titanium (IV) isopropoxide and oxygen as rea...

Y. Klenko; J. Pichal

2012-12-01T23:59:59.000Z

377

High rate deposition of microcrystalline silicon films by high-pressure radio frequency plasma enhanced chemical vapor deposition (PECVD)  

Science Journals Connector (OSTI)

Hydrogenated microcrystalline silicon (?c-Si:H) thin films were prepared by high-pressure radio-frequency (13.56 MHz) plasma enhanced chemical vapor deposition (rf-PECVD) with a screened plasma. The deposition ra...

BingQing Zhou; MeiFang Zhu; FengZhen Liu…

2008-04-01T23:59:59.000Z

378

Effect of substrate temperature on the electrospark deposition, structure, and mechanical properties of coatings. II. Coating deposition features  

Science Journals Connector (OSTI)

The relationship between deposition temperature, coating inhomogeneity, and temperature of cathode spots is studied. It is shown that the spark deposition of coatings proceeds in the area of cathode spots; the...

V. D. Belik; R. V. Litvin; M. S. Kovalchenko

2012-05-01T23:59:59.000Z

379

A new pulsed laser deposition technique: Scanning multi-component pulsed laser deposition method  

SciTech Connect

The scanning multi-component pulsed laser deposition (PLD) method realizes uniform depositions of desired coatings by a modified pulsed laser deposition process, preferably with a femto-second laser-system. Multi-component coatings (single or multilayered) are thus deposited onto substrates via laser induced ablation of segmented targets. This is achieved via horizontal line-scanning of a focused laser beam over a uniformly moving target's surface. This process allows to deposit the desired composition of the coating simultaneously, starting from the different segments of the target and adjusting the scan line as a function of target geometry. The sequence and thickness of multilayers can easily be adjusted by target architecture and motion, enabling inter/intra layer concentration gradients and thus functional gradient coatings. This new, simple PLD method enables the achievement of uniform, large-area coatings. Case studies were performed with segmented targets containing aluminum, titanium, and niobium. Under the laser irradiation conditions applied, all three metals were uniformly ablated. The elemental composition within the rough coatings obtained was fixed by the scanned area to Ti-Al-Nb = 1:1:1. Crystalline aluminum, titanium, and niobium were found to coexist side by side at room temperature within the substrate, without alloy formation up to 600 deg. C.

Fischer, D.; Jansen, M. [Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart (Germany); Fuente, G. F. de la [Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza), Maria de Luna, 3, 50018 Zaragoza (Spain)

2012-04-15T23:59:59.000Z

380

Deposition of biaxially textured yttria-stabilized zirconia by ion-beam-assisted deposition.  

SciTech Connect

Biaxially textured yttria (8 mol %)-stabilized zirconia (YSZ) thin films were deposited on randomly oriented Hastelloy C and Stainless Steel 304 at room temperature as a buffer layer for subsequent deposition of oriented YBa{sub 2}Cu{sub 3}O{sub x} films. The 0.16-1.3 {micro}m thick YSZ films were deposited by e-beam evaporation at rates of 1.2-3.2 {angstrom}/sec. Biaxially textured films were produced with an Ar/O{sub 2} ion beam directed at the substrate during film growth. X-ray diffraction was used to study in-plane and out-of-plane orientation as a function of ion-bombardment angle, film thickness, ion-to-atom flux ratio, and substrate material. In-plane and out-of-plane average-misorientation angles on these YSZ films that were deposited by ion-beam-assisted deposition were as low as 17 and 5.4{degree}, respectively, on as-received substrates.

Chudzik, M. P.

1998-09-17T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Molecular Layer Deposition on Carbon Nanotubes  

Science Journals Connector (OSTI)

They were fabricated by compressing a CNT aerogel produced as an output from a chemical vapor deposition furnace. ... The CNT3 specimens may be harder in general to coat due to their smaller diameter in comparison to the other materials. ... (1) Data tables for mechanical test results parallel and perpendicular to the CNT sheet orientation; (2) additional SEM and TEM images of coated CNT materials; (3) additional EDS spectra of MLD coatings on CNTs, and comparison to Al2O3 ALD coating on CNTs. ...

Joseph J. Brown; Robert A. Hall; Paul E. Kladitis; Steven M. George; Victor M. Bright

2013-08-13T23:59:59.000Z

382

Evolution of a Humid Tropical Landscape in Northcentral Costa Rica as Deduced from Geomorphic and Pedogenic Evidence  

E-Print Network (OSTI)

18. Soils on Alluvial Plains in the Atlantic Low land Province ...... 247 19. Soils on Tilted Fault-Block Ridge I in the Piedmont Province 248 20. Soils on Tilted Fault-Block Ridge II In the Piedmont Province 250 21. Soils on Tilted Fault... of laharic origin, alluvial plains, and paired terraces are present in the Atlantic Lowland Pro vince of southern San Carlos. The Piedmont Province con tains tilted fault-block ridges, alluvial/laharic fans, alluvial plains, cinder cones, and volcanic ash...

Wells, Anke Maria Neumann

1979-01-01T23:59:59.000Z

383

The algorithm of drawing the contour lines of the surfaces that resulted from the intersection of a plane with a deposit or a deposit unit  

Science Journals Connector (OSTI)

In this paper we present an algorithm of drawing the contour lines of the surfaces that resulted from the intersection of a plane with a deposit or a deposit unit. Some of the general data and the thorough data relative to the knowledge of a deposit ... Keywords: contour line, deposit, deposit unit, model, section, surface

Nicolae Dobritoiu

2009-07-01T23:59:59.000Z

384

Ion bombardment in silane VHF deposition plasmas  

SciTech Connect

The measurement of mass resolved ion energy distributions at the grounded substrate in an RF glow discharge allows to determine the ion flux and the ion energy flux towards the surface of a growing hydrogenated amorphous silicon (a-Si:H) layer. This provides the means to study the influence of ions on the structural properties of a-Si:H. Here the authors focus on the {alpha}-{gamma}{prime} transition as occurs in silane-hydrogen plasmas at an RF frequency of 50 MHz and a substrate temperature of 250 C. The structural properties of the layers appear to depend on the kinetic energy of the arriving ions. This is supported by measurements of ion fluxes under other deposition conditions and by characterization of the corresponding layers. The influence of ions on the growth is discussed in terms of their flux, and the amount of delivered kinetic and potential energy to the growing film. The measurements suggest that a threshold energy of about 5 eV per deposited atom is needed for the construction of a dense amorphous silicon network.

Hamers, E.A.G.; Bezemer, J.; Meiling, H.; Van Sark, W.G.J.H.M.; Van Der Weg, W.F.

1997-07-01T23:59:59.000Z

385

On the dry deposition of submicron particles  

SciTech Connect

The air-surface exchange of particles can have a strong role in determining the amount, size, and chemical composition of particles in the troposphere. Here the authors consider only dry processes (deposition processes not directly aided by precipitation) and mostly address particles less than about 2 {micro}m in diameter (often referred to as submicron particles because most of such particles are less than 1 {micro}m in diameter). The processes that control the dry exchange of particulate material between the atmosphere and the surface of the Earth are numerous, highly varied, and sometimes poorly understood. As a result, determining which of the surface processes to parameterize or simulate in modeling the tropospheric mass budget of a particulate substance can be a significant challenge. Dry deposition, for example, can be controlled by a combination of Brownian diffusion, impaction, interception, and gravitational settling, depending on the size of the particles, the roughness of the surface on both micrometeorological and microscopic scales, the geometrical structure of vegetative canopies, and other surface characteristics such as wetness. Particles can be added to the lower atmosphere by resuspension from land surfaces and sea spray. The roles of rapid gas-to-particle conversion and growth or shrinkage of particles as a result of water condensation or evaporation in the lower few meters of the atmosphere can also have a significant impact on particle concentrations in the lower atmosphere. Here, a few micrometeorological observations and inferences on particle air-surface exchange are briefly addressed.

Wesely, M. L.

1999-10-08T23:59:59.000Z

386

Laser techniques for studying chemical vapor deposition  

SciTech Connect

Chemical vapor deposition (CVD) is widely used to produce thin films for microelectronics, protective coatings and other materials processing applications. Despite the large number of applications, however, little is known about the fundamental chemistry and physics of most CVD processes. CVD recipes have generally been determined empirically, but as process requirements become more stringent, a more basic understanding will be needed to improve reactor design and speed process optimization. In situ measurements of the reacting gas are important steps toward gaining such an understanding, both from the standpoint of characterizing the reactor and testing models of a CVD process. Our work, a coordinated program of experimental and theoretical research in the fundamental mechanisms of CVD, illustrates the application of laser techniques to the understanding of a CVD system. We have used a number of laser-based techniques to probe CVD systems and have compared our measurements with predictions from computer models, primarily for the silane CVD system. The silane CVD model solves the two-dimensional, steady-state boundary layer equations of fluid flow coupled to 26 elementary chemical reactions describing the thermal decomposition of silane and the subsequent reactions of intermediate species that result in the deposition of a silicon film.

Ho, P.; Breiland, W.G.; Coltrin, M.E.

1990-01-01T23:59:59.000Z

387

Carbon deposition in steam reforming and methanation  

SciTech Connect

The purpose of this review is to survey recent studies of carbon deposition on metals used as catalysts in steam reforming and methanation, emphasizing research where significant progress has been made. Where possible, an attempt is made to treat the fundamental nature of carbon formation and deactivation by carbon and the relationships between these two phenomena. Steam reforming and methanation are emphasized in this review because (1) deactivation of catalysts by carbon deposits is a serious concern in both processes, (2) much of the previous research with carbon formation on metals involved one or the other of these two reactions, and (3) there are interesting differences and similarities between these two reactions; for example, methanation is typically carried out at moderate reaction temperatures (200-450/sup 0/C) while steam reforming is typically carried out at significantly higher reaction temperatures (600-900/sup 0/C). Yet the two reactions are very closely related, since methane steam reforming is the reverse of methanation of CO. Moreover, there is evidence that some of the carbons formed in these two different processes are similar in their morphology.

Bartholomew, C.H.

1982-01-01T23:59:59.000Z

388

Atmospheric pressure plasma chemical vapor deposition system for high-rate deposition of functional materials  

Science Journals Connector (OSTI)

The atmospheric pressure plasmachemical vapor deposition(CVD) system has been developed to fabricate functional thin films at very high deposition rate. The atmospheric pressure plasma in which high-density radicals are created has been effectively used to depositthin films. Combination of the newly designed rotary electrode and the 150 MHz very high frequency power supply makes it possible not only to generate the high-density atmospheric pressure plasma but also to avoid ion bombardment against the film. By virtue of these noble characteristics of the system high quality films can be fabricated at an unprecedented high deposition rate. In order to demonstrate the effectiveness of the atmospheric pressure plasmaCVD system hydrogenated amorphous silicon (a- Si:H ) films were prepared in gas mixtures containing He H 2 and SiH 4 . The results showed that homogeneous a- Si:H films grew when substrates were heated at 200?°C. Extremely high deposition rate which was more than 100 times faster than that of the conventional low-pressure plasma CVD technique was realized.

Y. Mori; K. Yoshii; H. Kakiuchi; K. Yasutake

2000-01-01T23:59:59.000Z

389

Air-Side Energy Use Calculations for Four HVAC Systems: Dual Duct Constant Volume (DDCAV), Dual Duct Variable Volume (DDVAV), Constant Volume with Reheat (CAVRH), Variable Volume with Reheat (VAVRH), Four Pipe Fan Coil Unit (FC), Four Pipe Induction Unit (FI), and Single Zone (SZ) Systems, Revised June 2002  

E-Print Network (OSTI)

(CAVRH), and variable volume with reheat (VAVRH), four pipe fan coil unit (FC), four pipe induction unit (FI), and a single zone air conditioning system (SZ). These calculations are presented in spreadsheets that include a running commentary so...

Haberl, J. S.; Bou-Saada, T. E.; Saman, N. F.

2001-01-01T23:59:59.000Z

390

Lognormal Size Distribution Theory for Deposition of Polydisperse Aerosol Particles  

SciTech Connect

The moments method of the lognormal size distribution theory was applied to the deposition equation of a radioactive aerosol within a liquid-metal fast breeder reactor for analysis of postulated accidents. The deposition coefficient of Crump and Seinfeld was utilized to represent the Brownian and turbulent diffusions and the gravitational sedimentation. The deposition equation was converted into a set of three ordinary differential equations. This approach takes the view point that the size distribution of an aerosol is represented by a time-dependent lognormal size distribution function during the deposition process. Numerical calculations have been performed, and the results were found to be in good agreement with the exact solution. The derived model for aerosol deposition is convenient to use in a numerical general dynamic equation solution routine based on the moments method, where nucleation, condensation, coagulation, and deposition need to be solved simultaneously.

Park, S.H.; Lee, K.W. [Kwangju Institute of Science and Technology (Korea, Republic of)

2000-07-15T23:59:59.000Z

391

The formation of a single-pulse electrospark deposition spot  

Science Journals Connector (OSTI)

The investigation of the formation mechanism of the rotating-type electrospark deposition (ESD) was presented, based on studying the single-pulse electrospark deposition spot. Four different substrate/electrode couples were selected to produce single-pulse deposition spots. The similar morphology of the spots and element migration tendency were detected. A heuristic physical model was established to interpret this deposition process. The concept of “gush and splash effect” was originally proposed and proved as the dominant factor in the formation mechanism of the single-pulse electrospark deposition spot. In addition, the rotation behavior of the electrode was identified to impact on the formation of the single-pulse deposition spot.

Jun Liu; Ruijun Wang; Yiyu Qian

2005-01-01T23:59:59.000Z

392

Nanostructure templating using low temperature atomic layer deposition  

DOE Patents (OSTI)

Methods are described for making nanostructures that are mechanically, chemically and thermally stable at desired elevated temperatures, from nanostructure templates having a stability temperature that is less than the desired elevated temperature. The methods comprise depositing by atomic layer deposition (ALD) structural layers that are stable at the desired elevated temperatures, onto a template employing a graded temperature deposition scheme. At least one structural layer is deposited at an initial temperature that is less than or equal to the stability temperature of the template, and subsequent depositions made at incrementally increased deposition temperatures until the desired elevated temperature stability is achieved. Nanostructure templates include three dimensional (3D) polymeric templates having features on the order of 100 nm fabricated by proximity field nanopatterning (PnP) methods.

Grubbs, Robert K. (Albuquerque, NM); Bogart, Gregory R. (Corrales, NM); Rogers, John A. (Champaign, IL)

2011-12-20T23:59:59.000Z

393

Deposition method for producing silicon carbide high-temperature semiconductors  

DOE Patents (OSTI)

An improved deposition method for producing silicon carbide high-temperature semiconductor material comprising placing a semiconductor substrate composed of silicon carbide in a fluidized bed silicon carbide deposition reactor, fluidizing the bed particles by hydrogen gas in a mildly bubbling mode through a gas distributor and heating the substrate at temperatures around 1200.degree.-1500.degree. C. thereby depositing a layer of silicon carbide on the semiconductor substrate.

Hsu, George C. (La Crescenta, CA); Rohatgi, Naresh K. (W. Corine, CA)

1987-01-01T23:59:59.000Z

394

Study of the effects of ambient conditions upon the performance of fan powered, infrared, natural gas burners. Quarterly technical progress report, September 1--September 30, 1994  

SciTech Connect

The objective of this investigation is to characterize the operation of fan powered infrared(PIR) burner at various barometric pressures (operating altitude) and gas compositions and develop design guidelines for appliances containing PIR burners for satisfactory performance. In this program, the theoretical basis for the behavior of PIR burners will be established through analysis of the combustion, heat and mass transfer, and other related processes which determine the performance of PIR burners. Based on the results of this study, a first order model of the performance of the burner, including radiant output will be developed. The model will be applied to predict the performance of the selected burner and modified through comparison with test results. Concurrently, an experimental setup will be devised and built. This experimental rig will be a modified appliance, capable of measuring the heat and combustion product output, as well as providing a means by which the radiant heat output can be measured. The burner will be selected from an existing commercial appliance, a commercial deep fat fryer, and will be of a scale that will be compatible with the laboratory facilities in the Combustion Laboratory at Clark Atlanta University. Theoretical analysis and formulation of the PIR burner performance model has been started and the development of the test facilities and experimental setup has also been initiated. These are described.

Bai, T.

1994-10-01T23:59:59.000Z

395

EGR Cooler Fouling- Visualization of Deposition and Removal Mechanis  

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

Presents experimental data on exhaust gas recirculation(EGR) cooler fouling using new test apparatus that allows for in-situ observation of deposition and removal processes

396

Chemical vapor deposition of amorphous semiconductor films. Final subcontract report  

SciTech Connect

Chemical vapor deposition (CVD) from higher order silanes has been studied for fabricating amorphous hydrogenated silicon thin-film solar cells. Intrinsic and doped a-Si:H films were deposited in a reduced-pressure, tubular-flow reactor, using disilane feed-gas. Conditions for depositing intrinsic films at growth rates up to 10 A/s were identified. Electrical and optical properties, including dark conductivity, photoconductivity, activation energy, optical absorption, band-gap and sub-band-gap absorption properties of CVD intrinsic material were characterized. Parameter space for depositing intrinsic and doped films, suitable for device analysis, was identified.

Rocheleau, R.E.

1984-12-01T23:59:59.000Z

397

S-shaped magnetic macroparticle filter for cathodic arc deposition  

SciTech Connect

A new magnetic macroparticle filter design consisting of two 90{sup o} filters forming an S-shape is described. Transport properties of this S-filter are investigated using Langmuir and deposition probes. It is shown that filter efficiency is product of the efficiencies of two 90{sup o} filters and the deposition rate is still acceptably high to perform thin film deposition. Films of amorphous hard carbon have been deposited using a 90{sup o} filter and the S-filter, and macroparticle content of the films are compared.

Anders, S.; Anders, A.; Dickinson, M.R.; MacGill, R.A.; Brown, I.G.

1996-04-01T23:59:59.000Z

398

USE OF ATOMIC LAYER DEPOSITION OF FUNCTIONALIZATION OF NANOPOROUS BIOMATERIALS  

SciTech Connect

Due to its chemical stability, uniform pore size, and high pore density, nanoporous alumina is being investigated for use in biosensing, drug delivery, hemodialysis, and other medical applications. In recent work, we have examined the use of atomic layer deposition for coating the surfaces of nanoporous alumina membranes. Zinc oxide coatings were deposited on nanoporous alumina membranes using atomic layer deposition. The zinc oxide-coated nanoporous alumina membranes demonstrated antimicrobial activity against Escherichia coli and Staphylococcus aureus bacteria. These results suggest that atomic layer deposition is an attractive technique for modifying the surfaces of nanoporous alumina membranes and other nanostructured biomaterials.

Brigmon, R.; Narayan, R.; Adiga, S.; Pellin, M.; Curtiss, L.; Stafslien, S.; Chisholm, B.; Monteiro-Riviere, N.; Elam, J.

2010-02-08T23:59:59.000Z

399

How to make deposition of images a reality  

Science Journals Connector (OSTI)

An analysis is performed of the technical and financial challenges to be overcome if deposition of primary experimental data is to become routine.

Guss, J.M.

2014-09-30T23:59:59.000Z

400

Liquid Metal Heat Exchanger for Geologic Deposits - Energy Innovation...  

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

heating apparatus that efficiently heats subterranean geological deposits, such as oil shale, to extract hydrocarbons for energy needs. The apparatus provides more efficient...

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Calculating Deposit Formation in the Pipelining of Waxy Crude Oils  

Science Journals Connector (OSTI)

Wax deposition from a waxy crude oil is modelled in turbulent flow in a pipeline. Molecular diffusion in a thin boundary layer...

S. Correra; A. Fasano; L. Fusi; D. Merino-Garcia

2007-04-01T23:59:59.000Z

402

Deposition of dopant impurities and pulsed energy drive-in  

DOE Patents (OSTI)

A semiconductor doping process which enhances the dopant incorporation achievable using the Gas Immersion Laser Doping (GILD) technique. The enhanced doping is achieved by first depositing a thin layer of dopant atoms on a semiconductor surface followed by exposure to one or more pulses from either a laser or an ion-beam which melt a portion of the semiconductor to a desired depth, thus causing the dopant atoms to be incorporated into the molten region. After the molten region recrystallizes the dopant atoms are electrically active. The dopant atoms are deposited by plasma enhanced chemical vapor deposition (PECVD) or other known deposition techniques.

Wickboldt, Paul (Walnut Creek, CA); Carey, Paul G. (Mountain View, CA); Smith, Patrick M. (San Jose, CA); Ellingboe, Albert R. (Malahide, IE)

2008-01-01T23:59:59.000Z

403

Deposition of dopant impurities and pulsed energy drive-in  

DOE Patents (OSTI)

A semiconductor doping process which enhances the dopant incorporation achievable using the Gas Immersion Laser Doping (GILD) technique. The enhanced doping is achieved by first depositing a thin layer of dopant atoms on a semiconductor surface followed by exposure to one or more pulses from either a laser or an ion-beam which melt a portion of the semiconductor to a desired depth, thus causing the dopant atoms to be incorporated into the molten region. After the molten region recrystallizes the dopant atoms are electrically active. The dopant atoms are deposited by plasma enhanced chemical vapor deposition (PECVD) or other known deposition techniques.

Wickboldt, Paul (Walnut Creek, CA); Carey, Paul G. (Mountain View, CA); Smith, Patrick M. (San Ramon, CA); Ellingboe, Albert R. (Fremont, CA)

1999-01-01T23:59:59.000Z

404

System and Method for Sealing a Vapor Deposition Source - Energy...  

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

costs and minimizes system downtime for cleaning Applications and Industries Thin film solar Deposition of any thin film Patents and Patent Applications ID Number Title and...

405

Plasma parameters in electrospark deposition of silver coatings  

Science Journals Connector (OSTI)

Spectroscopic measurements and mathematical simulations are conducted to study the composition and parameters of spark discharge in depositing coatings with silver electrodes using an Élitron-22 generator. The...

V. D. Kurochkin; L. P. Kravchenko; L. O. Kryachko…

2008-11-01T23:59:59.000Z

406

Loan/deposit links at rural Texas banks  

E-Print Network (OSTI)

: Agricultural Economics LOAN/DEPOSIT LINKS AT RURAL TEXAS RANKS A Thesis by VERA SURTON PODOLECKI Approved as to style and content by: fCha' an of Comm' ee) . '/ (Head' of Dep rtment) (Member ) (Membe May 1977 441'726 ABSTRACT Loan/Deposit Links... in agri- cultural lending on deposit level which in turn influences bank pro- fitability. This paper is directed towards providing the rural banker with tangible evidence of the effect of lending on deposit levels over time, and providing a...

Podolecki, Vera Burton

2012-06-07T23:59:59.000Z

407

CFD Analysis of Particle Deposition During DPF Filtration Processes  

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

A 3-D DPF model is developed to predict thermo-physical properties during filtration processes and to quantitatively investigate particle deposition regarding its size and number distribution.

408

Hydrogen Absorption Induced Metal Deposition on Palladium and...  

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

Hydrogen Absorption Induced Metal Deposition on Palladium and Palladium-Alloy Particles Brookhaven National Laboratory Contact BNL About This Technology

High resolution...

409

Analysis Of Hot Springs And Associated Deposits In Yellowstone...  

Open Energy Info (EERE)

Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Abstract The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and...

410

Depositional environments of the Kodiak Shelf, Alaska  

E-Print Network (OSTI)

of these envfronments are created by the bathymetry of tfii s!iel f affec+ing the flow of the shelf waters. Sediment in the re!ighs is characterized by high asti and forami- rifera content, higi poros Ity and low bu', k densi ty. The fine-i;i a in natiif e i i' 'I... and clay. The f'ine-g; ain nature nf tive sed'me!&t of the surf'icfal deposits suogests that. they al e lovi ene!"gy ivii Gniilents, The negative ". opography shelters t'tie sediment in the d pressions from erosion. Iv ACKi'lOWLEDGMENTS The wr1ter...

Burbach, Stuart Peter

2012-06-07T23:59:59.000Z

411

Vacuum deposition and curing of liquid monomers  

DOE Patents (OSTI)

The present invention is the formation of solid polymer layers under vacuum. More specifically, the present invention is the use of standard polymer layer-making equipment that is generally used in an atmospheric environment in a vacuum, and degassing the monomer material prior to injection into the vacuum. Additional layers of polymer or metal may be vacuum deposited onto solid polymer layers. Formation of polymer layers under a vacuum improves material and surface characteristics, and subsequent quality of bonding to additional layers. Further advantages include use of less to no photoinitiator for curing, faster curing, fewer impurities in the polymer electrolyte, as well as improvement in material properties including no trapped gas resulting in greater density, and reduced monomer wetting angle that facilitates spreading of the monomer and provides a smoother finished surface.

Affinito, J.D.

1993-11-09T23:59:59.000Z

412

As-deposited low-strain LPCVD (low-pressure, chemical-vapor-deposition) polysilicon  

SciTech Connect

As-deposited polysilicon films with very low residual strain (lower than 5 x 10/sup -5/) are obtained by a low-pressure, chemical-vapor-deposition (LPCVD) process. Straight polysilicon bridges 300 ..mu..m long, 1.2 ..mu..m thick, and 2 to 20 ..mu..m wide, made using this process. No buckling has been observed in any of the nearly one thousand bridges of this type made in two separate process runs. In addition, no problems of sticking between the bridges and the substrate were encountered with these structures. The polysilicon films from which the beams were fabricated were deposited by pyrolyzing silane at 605/degree/C on a phosphosilicate-glass (PSG) layer (8 wt % P). The PSG layer serves as a sacrificial layer to be subsequently etched away to free the bridge. Our research is aimed at obtaining an understanding of these relationships through consideration of the role of interfacial stresses and the kinetics of initial crystalline nucleation. The technique for producing these low-strain films is significant, however, because no high-temperature annealing steps are required to produce them. 4 refs., 4 figs.

Fan, L.S.; Muller, R.S.

1988-08-01T23:59:59.000Z

413

Energy deposition by weakly interacting massive particles: a comprehensive study  

Science Journals Connector (OSTI)

......necessary to study the energy deposition in the surrounding...pair annihilates into muons; and (iii) a 200-GeV...cascade. The fractional energy depositions into the...pair annihilates into muons and gives as a result a hard energy spectrum in agreement......

C. Evoli; M. Valdés; A. Ferrara; N. Yoshida

2012-05-01T23:59:59.000Z

414

AIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER WATERSHED  

E-Print Network (OSTI)

) provides a summary of major scientific reports on air pollution and public health. The reports includeAIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER WATERSHED Annual Progress Report for FY 2005 through the US Department of Interior #12;PROGRESS REPORT: AIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER

District of Columbia, University of the

415

Prediction of ash deposition in pulverized coal combustion systems  

SciTech Connect

A predictive scheme based on CCSEM flyash data and Computational Fluid Dynamics (CFD) has been developed to study the slagging propensity of coals. The model has been applied to predict the deposition potential of three UK coals; Bentinck, Daw Mill and Silverdale, in a pilot scale single burner ash deposition test facility and an utility size multi-burner front wall-fired furnace. The project is part of a collaborative research program sponsored by the UK Department of Trade and Industry and involved various industrial organizations and universities. The objective of the project is to understand the fundamental aspects of slagging in pulverized coal-fired combustion systems. This paper is a sequel to the poster paper entitled: The Prediction of Ash Deposition in a Coal Fired Axi-symmetric Furnace, presented in the last Engineering Foundation Conference. The present model predicts the relative slagging propensity of the three coals correctly. The predicted deposition patterns are also consistent with the observations. The results from the model indicate a preferential deposition of iron during the initial stage of ash deposition. The average compositions of the deposits become closer to that of the bulk ash when the accumulation of ash deposits is taken into account.

Lee, F.C.C.; Riley, G.S. [National Power PLC, Swindon (United Kingdom); Lockwood, F.C. [Imperial Coll. of Science, Technology and Medicine, London (United Kingdom). Dept. of Mechanical Engineering

1996-12-31T23:59:59.000Z

416

Ash Deposition Behavior of Upgraded Brown Coal and Bituminous Coal  

Science Journals Connector (OSTI)

Ash Deposition Behavior of Upgraded Brown Coal and Bituminous Coal ... Ash with a low melting point causes slagging and fouling problems in pulverized coal combustion boilers. ... The ash composition in coal and operational conditions in boilers such as heat load greatly affect the ash deposition behavior. ...

Katsuya Akiyama; Haeyang Pak; Toshiya Tada; Yasuaki Ueki; Ryo Yoshiie; Ichiro Naruse

2010-07-22T23:59:59.000Z

417

Gas Phase Electrodeposition: A Programmable Multimaterial Deposition Method for  

E-Print Network (OSTI)

plasma induced synthesis,11 and arc discharge12,13 can produce nanoparticles and nanow- ires of various-phase deposition process produces charged tungsten, and platinum and uses externally electrodeposition, arc discharge, atmospheric pressure gas phase deposition, nanoparticle nanostructured electrodes

Jacobs, Heiko O.

418

Sputter deposition for multi-component thin films  

DOE Patents (OSTI)

Ion beam sputter-induced deposition using a single ion beam and a multicomponent target is capable of reproducibly producing thin films of arbitrary composition, including those which are close to stoichiometry. Using a quartz crystal deposition monitor and a computer controlled, well-focused ion beam, this sputter-deposition approach is capable of producing metal oxide superconductors and semiconductors of the superlattice type such as GaAs-AlGaAs as well as layered metal/oxide/semiconductor/superconductor structures. By programming the dwell time for each target according to the known sputtering yield and desired layer thickness for each material, it is possible to deposit composite films from a well-controlled sub-monolayer up to thicknesses determined only by the available deposition time. In one embodiment, an ion beam is sequentially directed via a set of X-Y electrostatic deflection plates onto three or more different element or compound targets which are constituents of the desired film. In another embodiment, the ion beam is directed through an aperture in the deposition plate and is displaced under computer control to provide a high degree of control over the deposited layer. In yet another embodiment, a single fixed ion beam is directed onto a plurality of sputter targets in a sequential manner where the targets are each moved in alignment with the beam under computer control in forming a multilayer thin film. This controlled sputter-deposition approach may also be used with laser and electron beams.

Krauss, Alan R. (Plainfield, IL); Auciello, Orlando (Cary, NC)

1990-01-01T23:59:59.000Z

419

Sputter deposition for multi-component thin films  

DOE Patents (OSTI)

Ion beam sputter-induced deposition using a single ion beam and a multicomponent target is capable of reproducibly producing thin films of arbitrary composition, including those which are close to stoichiometry. Using a quartz crystal deposition monitor and a computer controlled, well-focused ion beam, this sputter-deposition approach is capable of producing metal oxide superconductors and semiconductors of the superlattice type such as GaAs-AlGaAs as well as layered metal/oxide/semiconductor/superconductor structures. By programming the dwell time for each target according to the known sputtering yield and desired layer thickness for each material, it is possible to deposit composite films from a well-controlled sub-monolayer up to thicknesses determined only by the available deposition time. In one embodiment, an ion beam is sequentially directed via a set of X-Y electrostatic deflection plates onto three or more different element or compound targets which are constituents of the desired film. In another embodiment, the ion beam is directed through an aperture in the deposition plate and is displaced under computer control to provide a high degree of control over the deposited layer. In yet another embodiment, a single fixed ion beam is directed onto a plurality of sputter targets in a sequential manner where the targets are each moved in alignment with the beam under computer control in forming a multilayer thin film. This controlled sputter-deposition approach may also be used with laser and electron beams. 10 figs.

Krauss, A.R.; Auciello, O.

1990-05-08T23:59:59.000Z

420

QuestionQuestion How does nitrogen deposition affect roadside  

E-Print Network (OSTI)

al. 2004. Concentrations of ammonia and nitrogen dioxide at roadside verges, and their contributionQuestionQuestion How does nitrogen deposition affect roadside plant community composition? 1. Is there a gradient of nitrogen deposition to freeway verges from traffic exhaust? 2. Are there other sources of N

Hall, Sharon J.

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Tropospheric Reactive Nitrogen Speciation, Deposition, and Chemistry at Harvard Forest  

E-Print Network (OSTI)

and absolute contributions of nitric acid (HNO3) and NOx (nitric oxide (NO) + nitrogen dioxide (NO2)) to totalTropospheric Reactive Nitrogen Speciation, Deposition, and Chemistry at Harvard Forest A thesis. Steven C. Wofsy Cassandra Volpe Horii Tropospheric Reactive Nitrogen Speciation, Deposition

422

Electroplating method for producing ultralow-mass fissionable deposits  

DOE Patents (OSTI)

A method for producing ultralow-mass fissionable deposits for nuclear reactor dosimetry is described, including the steps of holding a radioactive parent until the radioactive parent reaches secular equilibrium with a daughter isotope, chemically separating the daughter from the parent, electroplating the daughter on a suitable substrate, and holding the electroplated daughter until the daughter decays to the fissionable deposit.

Ruddy, Francis H. (Monroeville, PA)

1989-01-01T23:59:59.000Z

423

Plasma-Therm Workshop: Fundamentals of Plasma Processing (Etching & Deposition)  

E-Print Network (OSTI)

Plasma-Therm Workshop: Fundamentals of Plasma Processing (Etching & Deposition) Nanofabrication The workshop will focus on the fundamentals of plasma etching and deposition. Lectures will include an introduction to vacuum technology, the basics of plasma and plasma reactors and an overview of mechanisms

Martin, Jan M.L.

424

Hydrothermal Activity and Travertine Deposits in Valles Caldera Paul Withers  

E-Print Network (OSTI)

Hydrothermal Activity and Travertine Deposits in Valles Caldera Paul Withers Valles Caldera for the Valles Caldera hydrothermal system [fig]. Some fluids escape in acid springs and mud pits (Sulphur mineral deposits as they cool, specifically travertine. Travertine is a freshwater, calcium carbonate

Withers, Paul

425

Constraining oceanic dust deposition using surface ocean dissolved Al  

E-Print Network (OSTI)

Constraining oceanic dust deposition using surface ocean dissolved Al Qin Han,1 J. Keith Moore,1; accepted 7 December 2007; published 12 April 2008. [1] We use measurements of ocean surface dissolved Al (DEAD) model to constrain dust deposition to the oceans. Our Al database contains all available

Zender, Charles

426

A Geostatistical Study of the Uranium Deposit at Kvanefjeld,  

E-Print Network (OSTI)

with the geology. It is also shown that, although anisotropy exists, the uranium variation has a secondRisa-R-468 A Geostatistical Study of the Uranium Deposit at Kvanefjeld, The Ilimaussaq Intrusion A GEOSTATISTICAL STUDY OF THE URANIUM DEPOSIT AT KVANEFJELD, THE ILIMAUSSAQ INTRUSION, SOUTH GREENLAND Flemming

427

High Cooling Power Density of SiGe/Si Superlattice Microcoolers Gehong Zeng, Xiaofeng Fan, Chris LaBounty, John E. Bowers, Edward Croke1  

E-Print Network (OSTI)

a titanium silicide on the Silicon surface and to act as a metal barrier to separate SiGe and Al of hot carriers through thermionic emission. Thin film metal resistors were integrated on top. Subsequently 1µm thick aluminum layer was deposited. To facilitate wire bonding, additional metal layers

428

Cooling Power Density of SiGe/Si Superlattice Micro Refrigerators Gehong Zeng, Xiaofeng Fan, Chris LaBounty, Edward Croke2  

E-Print Network (OSTI)

by integrating thin film metal resistor heaters on the cooling surface. By evaluating the maximum cooling titanium layer was deposited to both form a titanium silicide layer on the Silicon surface and to act as a metal barrier to separate SiGe and Al. Subsequen

Bowers, John

429

External Surveillance of Geothermal Scale Deposits Employing Iridium-192  

Open Energy Info (EERE)

External Surveillance of Geothermal Scale Deposits Employing Iridium-192 External Surveillance of Geothermal Scale Deposits Employing Iridium-192 Radiography Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: External Surveillance of Geothermal Scale Deposits Employing Iridium-192 Radiography Abstract Iridium-192 radiography has been successfully tested as a technique for externally monitoring geothermal scale deposits in piping at the Brawley, CA geothermal field. This technique is applied to piping that handles flowing brine to provide in situ scale deposition observations without the disadvantage of dismantling piping for visual scale inspection. Exposure times and film orientations have been optimized to yield excellent agreement between radiographically detected scale thicknesses and actual

430

Nitrogen Deposition onto the United States and Western Europe  

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

ORNL DAAC Data Set Change Information ORNL DAAC Data Set Change Information Data Set: Nitrogen Deposition onto the United States and Western Europe Effective Date of Revision: May 2, 2005 Data Set Citation: Holland, E. A., B. H. Braswell, J. M. Sulzman, and J. -F. Lamarque. 2005. Nitrogen Deposition onto the United States and Western Europe. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. Revision Summary: The investigator advised us that data in two of the deposition files were a factor of 100 too large and the order of the records was reversed from the description in the documentation. NADP_wet_deposition_no3_0.5x0.5_grid_annual.txt NADP_wet_deposition_nh4_0.5x0.5_grid_annual.txt Data File Changes:

431

Method of and apparatus for determining deposition-point temperature  

DOE Patents (OSTI)

Acoustic-wave sensor apparatus and method for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in contact with the petroleum-based composition for sensing or detecting the surface temperature at which deposition occurs and/or rate of deposition as a function of temperature by sensing an accompanying change in frequency, phase shift, damping voltage or damping current of an electrical oscillator to a known calibrated condition. The acoustic wave device is actively cooled to monitor the deposition of constituents such as paraffins by determining the point at which solids from the liquid composition begin to form on the acoustic wave device. The acoustic wave device can be heated to melt or boil off the deposits to reset the monitor and the process can be repeated.

Mansure, Arthur J. (Albuquerque, NM); Spates, James J. (Albuquerque, NM); Martin, Stephen J. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

432

Method of and apparatus for determining deposition-point temperature  

DOE Patents (OSTI)

Acoustic-wave sensor apparatus and method are disclosed for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in contact with the petroleum-based composition for sensing or detecting the surface temperature at which deposition occurs and/or rate of deposition as a function of temperature by sensing an accompanying change in frequency, phase shift, damping voltage or damping current of an electrical oscillator to a known calibrated condition. The acoustic wave device is actively cooled to monitor the deposition of constituents such as paraffins by determining the point at which solids from the liquid composition begin to form on the acoustic wave device. The acoustic wave device can be heated to melt or boil off the deposits to reset the monitor and the process can be repeated. 5 figs.

Mansure, A.J.; Spates, J.J.; Martin, S.J.

1998-10-27T23:59:59.000Z

433

Chemical vapor deposition of boron-doped hydrogenated amorphous silicon  

SciTech Connect

Deposition conditions and film properties for a variety of boron-doped hydrogenated amorphous silicon films and silicon-carbon films produced by chemical vapor deposition (CVD) are discussed. Deposition gases include monosilane, disilane, trisilane, and acetylene. Two types of optically wide band-gap p layers are obtained. One of these window p layers (without carbon) has been extensively tested in photovoltaic devices. Remarkably, this p layer can be deposited between about 200 to 300 /sup 0/C. A typical open circuit voltage in an all CVD p-i-n device is 0.70--0.72 V, and in a hybrid device where the i and n layers are deposited by glow discharge, 0.8--0.83 V.

Ellis F.B. Jr.; Delahoy, A.E.

1985-07-15T23:59:59.000Z

434

A macroscopic model for focused?ion?beam?induced deposition  

Science Journals Connector (OSTI)

A time?dependent model for focused?ion?beam?induced deposition is presented which explicitly takes the scanning strategy of the beam during deposition into account. The model differentiates between the contribution of the beam center and that of the beam wings and contains all major experimental variables such as current density focus size scan speed and frame time. The deposition rate has been measured for tungsten as a function of the major experimental variables. The model has been fitted to these data and is found to describe the various dependences very well. By use of the model inclusive of the parameters obtained from the fit we can predict optimum deposition conditions. Furthermore the model clarifies effects observed during deposition on the structuredsurface of an integrated circuit such as redeposition of sputtered material and poor step coverage due to an impeded gas flow.

M. H. F. Overwijk; F. C. van den Heuvel

1993-01-01T23:59:59.000Z

435

Studies of wax deposition in the Trans Alaska pipeline  

SciTech Connect

The crude oil being pumped into the Trans Alaska pipeline experiences considerable cooling during its 800-mile (1,287 km) journey from Prudhoe Bay to Valdez. The conditions during the initial flow period were favorable especially for the deposition of the waxy constituents of the crude on the pipeline wall. As time passed and the crude oil flow rate increased, segments of the pipeline warmed up to temperatures greater than that at which wax deposition occurs. This study investigated mechanisms of wax deposition and determined the expected nature and thickness of deposits in the pipeline as a function of time and distance. Results indicate that deposition during start-up is a consequence of 3 separate mechanisms which transport both dissolved and precipitated waxy residue laterally. 31 references.

Burger, E.D.; Perkins, T.K.; Striegler, J.H.

1980-03-01T23:59:59.000Z

436

Influences of deposition and crystallization kinetics on the properties of silicon films deposited by low-pressure chemical vapour deposition from silane and disilane  

Science Journals Connector (OSTI)

The paper deals with the properties of silicon films obtained by low-pressure chemical vapour deposition (LPCVD). Two gaseous sources characterized by different deposition temperatures, i.e. disilane Si2H6 (420–520 °C) and silane SiH4 (520–750 °C), was studied in order to understand the influences of deposition and crystallization kinetics on silicon film properties. Thus, the deposition of amorphous, semi-crystallized and polycrystalline silicon films was related to “volume random” and “surface columnar” crystallization phenomena, highlighting a linear relationship between the refractive index and the polysilicon volume fraction and, showing complex residual stress dependency with process conditions. Finally, by introducing the ratio Vd/Vc between the deposition and crystallization rates as a major parameter, different deposition behaviours and related semi-empirical relationships were defined in order to characterize fully the various properties of LPCVD silicon films (microstructure, polysilicon volume fraction, refractive index and residual stress) according to the chosen gaseous source, silane or disilane.

Pierre Temple-Boyer; B. Rousset; E. Scheid

2010-01-01T23:59:59.000Z

437

Post-paleozoic structural styles in northern Sierra de Palomas: Chihuahua, Mexico  

SciTech Connect

Sierra de Palomas is the largest and most northerly range of the Boca Grande trend in northwestern Chihuahua, Mexico. Sierra de Palomas is composed of more than 1.5 km of late Paleozoic shelf carbonates and clastics. Detailed mapping the northern 150 km/sup 2/ of the range (at a scale of 1:12,500) has shown that four post-Paleozoic tectonic events have affected the range. The Laramide orogeny, two separate periods of basin and range extension, and recent (Rio Grande rift.) extension have left very distinct structures in the range. Laramide structures are predominantly vergent to the northeast, and are manifested as folds and thrusts. Folds are asymmetric and northwest trending, with amplitudes on the order of 10-50 m. Major thrusts in the range have minimum displacements on the order of a few kilometers. Basin and range structures include two distinct sets of high-angle faults; an early northeast-trending set is truncated by a late northwest-trending set. Recent Rio Grande rift(.) extension in the area is evident in fault scarps that offset alluvial fan deposits and in steeply eastward-tilted alluvial deposits.

Sivils, D.J.

1988-01-01T23:59:59.000Z

438

Utility of Megavoltage Fan-Beam CT for Treatment Planning in a Head-And-Neck Cancer Patient with Extensive Dental Fillings Undergoing Helical Tomotherapy  

SciTech Connect

The purpose of this study was to demonstrate the potential utility of megavoltage fan-beam computed tomography (MV-FBCT) for treatment planning in a patient undergoing helical tomotherapy for nasopharyngeal carcinoma in the presence of extensive dental artifact. A 28-year-old female with locally advanced nasopharyngeal carcinoma presented for radiation therapy. Due to the extensiveness of the dental artifact present in the oral cavity kV-CT scan acquired at simulation, which made treatment planning impossible on tomotherapy planning system, MV-FBCT imaging was obtained using the HI-ART tomotherapy treatment machine, with the patient in the treatment position, and this information was registered with her original kV-CT scan for the purposes of structure delineation, dose calculation, and treatment planning. To validate the feasibility of the MV-FBCT-generated treatment plan, an electron density CT phantom (model 465, Gammex Inc., Middleton, WI) was scanned using MV-FBCT to obtain CT number to density table. Additionally, both a 'cheese' phantom (which came with the tomotherapy treatment machine) with 2 inserted ion chambers and a generic phantom called Quasar phantom (Modus Medical Devices Inc., London, ON, Canada) with one inserted chamber were used to confirm dosimetric accuracy. The MV-FBCT could be used to clearly visualize anatomy in the region of the dental artifact and provide sufficient soft-tissue contrast to assist in the delineation of normal tissue structures and fat planes. With the elimination of the dental artifact, the MV-FBCT images allowed more accurate dose calculation by the tomotherapy system. It was confirmed that the phantom material density was determined correctly by the tomotherapy MV-FBCT number to density table. The ion chamber measurements agreed with the calculations from the MV-FBCT generated phantom plan within 2%. MV-FBCT may be useful in radiation treatment planning for nasopharyngeal cancer patients in the setting of extensive dental artifacts.

Yang, Claus; Liu Tianxiao; Jennelle, Richard L.; Ryu, Janice K.; Vijayakumar, Srinivasan; Purdy, James A. [Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, CA (United States); Chen, Allen M. [Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, CA (United States)], E-mail: allen.chen@ucdmc.ucdavis.edu

2010-07-01T23:59:59.000Z

439

www.elsevier.com/locate/rgg Types of Holocene deposits and regional pattern of sedimentation  

E-Print Network (OSTI)

long-core boreholes have been drilled in Baikal (Kuz'min et al., 2001). These drilling activities calm sedimentation conditions; (4) delta (fan) areas near the mouths of large rivers, where sediments. The highest rates appear near the mouths of large rivers, lower ones occur in the deep lake basins

Wehrli, Bernhard

440

2 - Products Using Vacuum Deposited Coatings  

Science Journals Connector (OSTI)

Publisher Summary Most of the vacuum coating done is thin metal coating for packaging applications covering many aspects of packaging. The metal coatings can be bright and highly reflective providing more advertising impact than metallic inks, which are duller. The metalized polymer webs can be used directly by heat sealing, laminated to other webs, or have the metallic layer transferred onto other surfaces by a stamping process. These and other variations make the aluminized film very versatile as a packaging material. The more important feature of the metal coating is that it provides a barrier performance against oxygen, water, and light. The barrier performance of the metal thin film depends on the thickness of the coating and the cleanliness of the coating. The use of lacquers or transparent colored inks enables metalized papers to be overprinted and used to make more reflective printed products than can be achieved by metallic inks. Many of these applications of metalized paper are purely esthetic. Holograms are bright, usually reflective, patterns or images that are used as decorative packaging and/or as security devices. Where holograms are used for packaging, they can be in the form of a small area integrated into the pack design or as a patterned background to the whole pack. This chapter provides examples of a large variety of products that make use of vacuum deposited coatings onto flexible substrates. Some of these may not be obvious to the users. The products range from flexible packaging, capacitors, pyrotechnics, flake fillers for paints and inks, holographic devices, transparent conducting coatings, thin film batteries, electronic circuits through to the current high market growth products such as displays, photovoltaics (solar cells), and high barrier coatings.

Charles A. Bishop

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Method for depositing high-quality microcrystalline semiconductor materials  

DOE Patents (OSTI)

A process for the plasma deposition of a layer of a microcrystalline semiconductor material is carried out by energizing a process gas which includes a precursor of the semiconductor material and a diluent with electromagnetic energy so as to create a plasma therefrom. The plasma deposits a layer of the microcrystalline semiconductor material onto the substrate. The concentration of the diluent in the process gas is varied as a function of the thickness of the layer of microcrystalline semiconductor material which has been deposited. Also disclosed is the use of the process for the preparation of an N-I-P type photovoltaic device.

Guha, Subhendu (Bloomfield Hills, MI); Yang, Chi C. (Troy, MI); Yan, Baojie (Rochester Hills, MI)

2011-03-08T23:59:59.000Z

442

Nopal I uranium deposit: A study of radionuclide migration  

SciTech Connect

This summary reports on activities of naturally-occurring radionuclides for the Nopal I uranium deposit located in the Pena Blanca Uranium District, Chihuahua, Mexico. Activities were determined using gamma-ray spectroscopy. In addition, data reduction procedures and sample preparation (for Rn retention) will be discussed here. Nopal I uranium deposit has been identified as one of the most promising sites for analogue studies to the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. The objective of this research is to study the potential for radionuclide migration by testing whether any portion of the deposit is in secular equilibrium.

Wong, V.; Anthony, E.; Goodell, P. [Univ. of Texas, El Paso, TX (United States)

1996-12-01T23:59:59.000Z

443

Initiated chemical vapor deposition of polymeric thin films : mechanism and applications  

E-Print Network (OSTI)

Initiated chemical vapor deposition (iCVD) is a novel technique for depositing polymeric thin films. It is able to deposit thin films of application-specific polymers in one step without using any solvents. Its uniqueness ...

Chan, Kelvin, Ph. D. Massachusetts Institute of Technology

2005-01-01T23:59:59.000Z

444

STRUCTURAL CONTROL AND ANISOTROPY OF MINERALIZATION THE CHUQUICAMATA PORPHYRY COPPER DEPOSIT,  

E-Print Network (OSTI)

STRUCTURAL CONTROL AND ANISOTROPY OF MINERALIZATION WITHIN THE CHUQUICAMATA PORPHYRY COPPER DEPOSIT CONTROL AND ANISOTROPY OF MINERALIZATION WITHIN THE CHUQUICAMATA PORPHYRY COPPER DEPOSIT, NORTHERN CHILE the Chuquicamata Porphyry Copper Deposit, northern Chile DEPARTMENT OR SCHOOL: Department of Earth Sciences DEGREE

Beaumont, Christopher

445

E-Print Network 3.0 - adjusted deposit insurance Sample Search...  

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

such as checking, savings, trust and money market deposit accounts, as well... as certificates of deposit (CDs) and IRAs. Bank accounts generally are insured by the FDIC up...

446

E-Print Network 3.0 - acid-mediated callose deposition Sample...  

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

-associated molecular patterns (flg22 and elf18), including callose deposition, lignin deposition, pigment accumulation... ., 1998; Soylu et al., 2005). Some bacterial and...

447

E-Print Network 3.0 - analysis atmospheric deposition Sample...  

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

3 Chapter 2: Sources and Deposition of Trace Metals 2.1 Main Sources of Atmospheric Pollution...7 Summary: and dry deposition analysis...

448

E-Print Network 3.0 - atomic vapor deposited Sample Search Results  

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

Articles Surfactant-Catalyzed Chemical Vapor Deposition of Copper Thin Films Eui Seong Hwang... and demonstrated for deposition of copper thin films from ... Source:...

449

On-line inspection and thermal properties comparison for laser deposition process .  

E-Print Network (OSTI)

??"This thesis is focused on comparing the laser deposition cladding with intended design model and comparing the effect of laser deposition process on thermal properties… (more)

Yang, Yu, 1973-

2007-01-01T23:59:59.000Z

450

The Time of Sands: Quartz-rich Sand Deposits as a Renewable Resource  

E-Print Network (OSTI)

sand production is from unconsolidated units, but the St.and Midwestern U.S. , unconsolidated sand deposits aresand is produced from unconsolidated deposits or hard,

Shaffer, Nelson R.

2006-01-01T23:59:59.000Z

451

Characterisation of a Pleistocene debris-avalanche deposit in the Tenteniguada Basin, Gran Canaria Island, Spain  

Science Journals Connector (OSTI)

We studied a large debris-avalanche deposit of Pleistocene age in the Tenteniguada Basin, Gran Canaria Island, Spain. This deposit, which is...

Alejandro Lomoschitz; Javier Hervás; Jorge Yepes; Joaquín Meco

2008-05-01T23:59:59.000Z

452

Analysis Of Hot Springs And Associated Deposits In Yellowstone National  

Open Energy Info (EERE)

Hot Springs And Associated Deposits In Yellowstone National Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Analysis Of Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Details Activities (6) Areas (1) Regions (0) Abstract: The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Airborne Visible/IR Image Spectrometer (AVIRIS) data were used to characterize hot spring deposits in the Lower, Midway, and Upper Geyser Basins of Yellowstone National Park from the visible/near infrared (VNIR) to thermal infrared (TIR) wavelengths. Field observations of these basins provided the critical ground-truth for comparison with the

453

Y-12 Site Experience with Deposition Velocity Issues  

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

Site Experience with Site Experience with Deposition Velocity Issues Douglas Clark Analyst B&W Technical Services Y-12 May 9, 2012 Y-12 Site Experience with Deposition Velocity Issues Y-12 Specific Issues Y-12 Site Experience with Deposition Velocity Issues Windspeed - Calm Wind Conditions at Y-12 Site Y-12 Site Experience with Deposition Velocity Issues Windspeed - Stability Class Determinations * NRC RG 1.23 ΔT-only method * EPA-454/R-99-005 solar- radiation-delta-temperature (SRDT) method * Hybrid SR - DT method * wind direction standard deviation [sigma-theta (σ θ )] * elevation angle standard deviation [sigma-phi (σ φ )] * vertical wind speed standard deviation [sigma-omega (σ ω )], * wind-speed ratio method (u R ) * All evaluated using data from west

454

Remote Detection Of Quaternary Borate Deposits With Aster Satellite Imagery  

Open Energy Info (EERE)

Of Quaternary Borate Deposits With Aster Satellite Imagery Of Quaternary Borate Deposits With Aster Satellite Imagery As A Geothermal Exploration Tool Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Remote Detection Of Quaternary Borate Deposits With Aster Satellite Imagery As A Geothermal Exploration Tool Details Activities (2) Areas (2) Regions (0) Abstract: Unavailable Author(s): C. Kratt, M. Coolbaugh, Wendy Calvin Published: GRC, 2006 Document Number: Unavailable DOI: Unavailable Multispectral Imaging At Rhodes Marsh Area (Kratt, Et Al., 2006) Multispectral Imaging At Teels Marsh Area (Kratt, Et Al., 2006) Rhodes Marsh Geothermal Area Teels Marsh Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Remote_Detection_Of_Quaternary_Borate_Deposits_With_Aster_Satellite_Imagery_As_A_Geothermal_Exploration_Tool&oldid=389959

455

Geology and Mineral Deposits of Churchill County, Nevada | Open Energy  

Open Energy Info (EERE)

Geology and Mineral Deposits of Churchill County, Nevada Geology and Mineral Deposits of Churchill County, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geology and Mineral Deposits of Churchill County, Nevada Abstract Churchill County, in west-central Nevada, is an area of varied topography and geology that has had a rather small total mineral production. The western part of the county is dominated by the broad low valley of the Carson Sink, which is underlain by deposits of Lake Lahontan. The bordering mountain ranges to the west and south are of low relief and underlain largely by Tertiary volcanic and sedimentary units. Pre-Tertiary rocks are extensively exposed east of the Carson Sink in the Stillwater Range, Clan Alpine Mountains, Augusta Mountains, and New Pass Mountains. The eastern

456

Geology of the Florida Canyon gold deposit, Pershing County,...  

Open Energy Info (EERE)

Nevada, in: Gold and Silver Deposits of Western Nevada Authors Hastings, J.S., Burkhart, T.H., and Richardson and R.E. Published Geological Society of Nevada 1993 fall field trip...

457

Laser-Based Deposition Technique: Patterning Nanoparticles into Microstructures  

E-Print Network (OSTI)

Laser-Based Deposition Technique: Patterning Nanoparticles into Microstructures Edward M. Nadgorny Jaroslaw Drelich Michigan Technological University, Houghton, Michigan, U.S.A. INTRODUCTION The laser- tions of unlike materials, and unconventional substrates. The technique makes use of laser

Drelich, Jaroslaw W.

458

Modeling of Particle Deposition in Cleanroom Environments: Current Status  

Science Journals Connector (OSTI)

Recently many models have been presented to describe particle deposition in cleanroom environments. The models can be classified according to the scale of flow — cleanroom scale, equipment scale, or product scale...

Jay R. Turner

1990-01-01T23:59:59.000Z

459

Atmospheric Mercury Deposition during the Last 270 Years: A  

E-Print Network (OSTI)

Atmospheric Mercury Deposition during the Last 270 Years: A Glacial Ice Core Record of Natural, and U.S. Geological Survey, Wisconsin District Mercury Research Laboratory, Middleton, Wisconsin 53562 Mercury (Hg) contamination of aquatic ecosystems and subsequent methylmercury bioaccumulation

460

Glow discharge deposition at high rates using disilane  

SciTech Connect

The research program reported makes use of the fact that amorphous silicon films can be grown faster from disilane in a glow discharge than from the traditional silane. The goal is to find a method to grow films at a high rate and with sufficiently high quality to be used in an efficient solar cell. It must also be demonstrated that the appropriate device structure can be successfully fabricated under conditions which give high deposition rates. High quality intrinsic films have been deposited at 20 A/s. Efficiency of 5.6% on steel substrates and 5.3% on glass substrates were achieved using disilane i-layers deposited at 15 A/s in a basic structure, without wide-gap doped layers or light trapping. Wide gap p-layers were deposited using disilane. Results were compared with those obtained at Vactronic using high power discharges of silane-hydrogen mixtures. (LEW)

Rajeswaran, G.; Corderman, R.R.; Kampas, F.J.; Vanier, P.E.

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "alluvial fan deposits" 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

Quantifying channelized submarine depositional systems from bed to basin scale  

E-Print Network (OSTI)

The challenges of directly observing active turbidity currents necessitates the consideration of preserved deposits for deciphering the behavior of these systems. In this thesis, I take advantage 3-D subsurface seismic ...

Lyons, William J., 1965-

2004-01-01T23:59:59.000Z

462

Precipitation scavenging, dry deposition, and resuspension. Volume 2. Proceedings  

SciTech Connect

Volume 2 of these proceedings contains papers on dry deposition and resuspension of airborne pollutants. Items within the scope of EDB have been entered separately into the data base. (ACR)

Pruppacher, H.R.; Semonin, R.G.; Slinn, W.G.N.

1983-01-01T23:59:59.000Z

463

Initiated chemical vapor deposition of functional polyacrylic thin films  

E-Print Network (OSTI)

Initiated chemical vapor deposition (iCVD) was explored as a novel method for synthesis of functional polyacrylic thin films. The process introduces a peroxide initiator, which can be decomposed at low temperatures (<200?C) ...

Mao, Yu, 1975-

2005-01-01T23:59:59.000Z

464

Electrostatic particle trap for ion beam sputter deposition  

DOE Patents (OSTI)

A method and apparatus for the interception and trapping of or reflection of charged particulate matter generated in ion beam sputter deposition. The apparatus involves an electrostatic particle trap which generates electrostatic fields in the vicinity of the substrate on which target material is being deposited. The electrostatic particle trap consists of an array of electrode surfaces, each maintained at an electrostatic potential, and with their surfaces parallel or perpendicular to the surface of the substrate. The method involves interception and trapping of or reflection of charged particles achieved by generating electrostatic fields in the vicinity of the substrate, and configuring the fields to force the charged particulate material away from the substrate. The electrostatic charged particle trap enables prevention of charged particles from being deposited on the substrate thereby enabling the deposition of extremely low defect density films, such as required for reflective masks of an extreme ultraviolet lithography (EUVL) system.

Vernon, Stephen P. (Pleasanton, CA); Burkhart, Scott C. (Livermore, CA)

2002-01-01T23:59:59.000Z

465

Critical loads of acid deposition on Scottish soils  

Science Journals Connector (OSTI)

The impact of acid deposition, attributable to sulphur and nitrogen pollutants, on the soils of Scotland has been analysed using a critical loads approach. The critical load of a soil (as an indicator of ecolo...

Simon J. Langan; M. J. Wilson

1994-05-01T23:59:59.000Z

466

Wet and Dry Pollutant Deposition to the Mixed Conifer Forest  

Science Journals Connector (OSTI)

The Mediterranean climate in southern California regulates wet and dry deposition characteristics in the San Bernardino Mountains (SBM). Long dry periods in combination with the large air pollution emissions f...

A. Bytnerowicz; M. E. Fenn; P. R. Miller…

1999-01-01T23:59:59.000Z

467

Asphaltene Deposition in Carbonate Rocks: Experimental Investigation and Numerical Simulation  

Science Journals Connector (OSTI)

Asphaltene Deposition in Carbonate Rocks: Experimental Investigation and Numerical Simulation ... Interfacial tension (IFT) as one of the main properties for efficient CO2 flooding planning in oil reservoirs depends strongly on pressure, temperature, and composition of the reservoir fluids. ...

Shahin Kord; Rohaldin Miri; Shahab Ayatollahi; Mehdi Escrochi

2012-06-20T23:59:59.000Z

468

Fabrication of solid oxide fuel cell by electrochemical vapor deposition  

DOE Patents (OSTI)

In a high temperature solid oxide fuel cell (SOFC), the deposition of an impervious high density thin layer of electrically conductive interconnector material, such as magnesium doped lanthanum chromite, and of an electrolyte material, such as yttria stabilized zirconia, onto a porous support/air electrode substrate surface is carried out at high temperatures (approximately 1100.degree.-1300.degree. C.) by a process of electrochemical vapor deposition. In this process, the mixed chlorides of the specific metals involved react in the gaseous state with water vapor resulting in the deposit of an impervious thin oxide layer on the support tube/air electrode substrate of between 20-50 microns in thickness. An internal heater, such as a heat pipe, is placed within the support tube/air electrode substrate and induces a uniform temperature profile therein so as to afford precise and uniform oxide deposition kinetics in an arrangement which is particularly adapted for large scale, commercial fabrication of SOFCs.

Brian, Riley (Willimantic, CT); Szreders, Bernard E. (Oakdale, CT)

1989-01-01T23:59:59.000Z

469

Mass-Selected Ion Deposition System - Electrospray Source | EMSL  

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

molecules originating in the ion source from impacting the surface, an ultrahigh vacuum (UHV) chamber for ion deposition by soft landing, and a vacuum-lock system for introducing...

470

Growth, microstructure and electrical properties of sputter-deposited...  

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

Growth, microstructure and electrical properties of sputter-deposited hafnium oxide (HfO2) thin films grown using HfO2 ceramic Growth, microstructure and electrical properties of...

471

Chapter 8: Modelling Sediment Records of Atmospherically Deposited Contaminants  

E-Print Network (OSTI)

73 Chapter 8: Modelling Sediment Records of Atmospherically Deposited Contaminants 8.1. Catchment the Water Column...............................................79 8.3 Water Column to Bottom Sediment Transfer......................................80 #12;Chapter 8: Modelling Sediment Records... 74 8

Short, Daniel

472

High density Ru nanocrystal deposition for nonvolatile memory applications  

E-Print Network (OSTI)

High density Ru nanocrystal deposition for nonvolatile memory applications Damon B. Farmer School density optimizes the charge storing capability of the floating layer, while a high degree of size

473

Enabling integration of vapor-deposited polymer thin films  

E-Print Network (OSTI)

Initiated Chemical Vapor Deposition (iCVD) is a versatile, one-step process for synthesizing conformal and functional polymer thin films on a variety of substrates. This thesis emphasizes the development of tools to further ...

Petruczok, Christy D. (Christy Danielle)

2014-01-01T23:59:59.000Z

474

Computational Fluid Dynamics Study of Aerosol Transport and Deposition Mechanisms  

E-Print Network (OSTI)

In this work, various aerosol particle transport and deposition mechanisms were studied through the computational fluid dynamics (CFD) modeling, including inertial impaction, gravitational effect, lift force, interception, and turbophoresis, within...

Tang, Yingjie

2012-07-16T23:59:59.000Z

475

ENVIRONMENTAL MICROBIOLOGY The Impact of Simulated Sulfate Deposition  

E-Print Network (OSTI)

ENVIRONMENTAL MICROBIOLOGY The Impact of Simulated Sulfate Deposition on Peatland Testate Amoebae of microbial biomass in Sphagnum peatlands (Gilbert et al. [14] estimate 14% and Mitchell et al. [27] estimate

Gauci, Vincent

476

Direct Deposit When Message Passing meets Shared Thomas M. Stricker  

E-Print Network (OSTI)

Direct Deposit ­ When Message Passing meets Shared Memory Thomas M. Stricker May 19, 2000 CMU-CS-96 Copyright c by Thomas M. Stricker Supported in part by the Defense Advanced Research Projects Agency

477

Direct Deposit --When Message Passing meets Shared Thomas M. Stricker  

E-Print Network (OSTI)

Direct Deposit -- When Message Passing meets Shared Memory Thomas M. Stricker May 19, 2000 CMU Copyright c flby Thomas M. Stricker Supported in part by the Defense Advanced Research Projects Agency

478

Spatial distribution of deposition within a patch of vegetation  

E-Print Network (OSTI)

This laboratory study describes the spatial pattern of deposition observed in a patch of vegetation located at the wall of a channel. There are two sources of sediment flux to the patch: the advection of particles across ...

Zong, Lijun

479

Cathodic Arc Deposition of Copper Oxide Thin Films  

E-Print Network (OSTI)

in the range 1-1.25 GHz, UHV compatible, and very adhesivefulfill the requirements for UHV compatibility. A cathodic85 MPa) and fulfill all UHV requirements. The deposition

MacGill, R.A.

2011-01-01T23:59:59.000Z

480

Hygienic rating of hydrocarbons in bottom deposits of water ecosystems  

Science Journals Connector (OSTI)

The authors of this article draw the reader’s attention to the topical problem of the contamination of bottom deposits of water ecosystems by hydrocarbons, such as oil and gas condensate,...

Rauf Valievich Galiulin…

2014-05-01T23:59:59.000Z

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


481

Fabrication of solid oxide fuel cell by electrochemical vapor deposition  

DOE Patents (OSTI)

In a high temperature solid oxide fuel cell (SOFC), the deposition of an impervious high density thin layer of electrically conductive interconnector material, such as magnesium doped lanthanum chromite, and of an electrolyte material, such as yttria stabilized zirconia, onto a porous support/air electrode substrate surface is carried out at high temperatures (/approximately/1100/degree/ /minus/ 1300/degree/C) by a process of electrochemical vapor deposition. In this process, the mixed chlorides of the specific metals involved react in the gaseous state with water vapor resulting in the deposit of an impervious thin oxide layer on the support tube/air electrode substrate of between 20--50 microns in thickness. An internal heater, such as a heat pipe, is placed within the support tube/air electrode substrate and induces a uniform temperature profile therein so as to afford precise and uniform oxide deposition kinetics in an arrangement which is particularly adapted for large scale, commercial fabrication of SOFCs.

Riley, B.; Szreders, B.E.

1988-04-26T23:59:59.000Z

482

Particle deposition in ventilation ducts: Connectors, bends anddeveloping flow  

SciTech Connect

In ventilation duct flow the turbulent flow profile is commonly disturbed or not fully developed and these conditions are likely to influence particle deposition to duct surfaces. Particle deposition rates at eight S-connectors, in two 90{sup o} duct bends and in two ducts where the turbulent flow profile was not fully developed were measured in a laboratory duct system with both galvanized steel and internally insulated ducts with hydraulic diameters of 15.2 cm. In the steel duct system, experiments with nominal particle diameters of 1, 3, 5, 9 and 16 {micro}m were conducted at each of three nominal air speeds: 2.2, 5.3 and 9.0 m/s. In the insulated duct system, deposition of particles with nominal diameters of 1, 3, 5, 8 and 13 {micro}m was measured at nominal air speeds of 2.2, 5.3 and 8.8 m/s. Fluorescent techniques were used to directly measure the deposition velocities of monodisperse fluorescent particles to duct surfaces. Deposition at S-connectors, in bends and in straight ducts with developing turbulence was often greater than deposition in straight ducts with fully developed turbulence for equal particle sizes, air speeds and duct surface orientations. Deposition rates at all locations were found to increase with an increase in particle size or air speed. High deposition rates at S-connectors resulted from impaction and these rates were nearly independent of the orientation of the S-connector. Deposition rates in the two 90{sup o} bends differed by more than an order of magnitude in some cases, probably because of the difference in turbulence conditions at the bend inlets. In straight steel ducts where the turbulent flow profile was developing, the deposition enhancement relative to fully developed turbulence generally increased with air speed and decreased with downstream distance from the duct inlet. This enhancement was greater at the duct ceiling and wall than at the duct floor. In insulated ducts, deposition enhancement was less pronounced overall than in steel ducts. Trends that were observed in steel ducts were present, but weaker, in insulated ducts.

Sippola, Mark R.; Nazaroff, William W.

2004-03-01T23:59:59.000Z

483

Saddle-field glow-discharge deposition of amorphous semiconductors  

SciTech Connect

The authors present a dc saddle-field glow-discharge deposition procedure which combines the positive attributes of the conventional dc and rf glow-discharge techniques. Preliminary mass spectra analyses of both silane and methane glow-discharges demonstrates that ions constitute a significant fraction of the species reaching the film surface. Growth rate analyses suggest that ions play a significant role in the saddle-field glow-discharge deposition of amorphous semiconducting films.

Gaspari, F.; Sidhu, L.S.; O`Leary, S.K.; Zukotynski, S. [Univ. of Toronto, Ontario (Canada). Dept. of Electrical and Computer Engineering

1996-12-31T23:59:59.000Z

484

Molybdenum enhanced low-temperature deposition of crystalline silicon nitride  

DOE Patents (OSTI)

A process for chemical vapor deposition of crystalline silicon nitride is described which comprises the steps of: introducing a mixture of a silicon source, a molybdenum source, a nitrogen source, and a hydrogen source into a vessel containing a suitable substrate; and thermally decomposing the mixture to deposit onto the substrate a coating comprising crystalline silicon nitride containing a dispersion of molybdenum silicide. 5 figures.

Lowden, R.A.

1994-04-05T23:59:59.000Z

485

Process for thin film deposition of cadmium sulfide  

DOE Patents (OSTI)

The present invention teaches a process for depositing layers of cadmium sulfide. The process includes depositing a layer of cadmium oxide by spray pyrolysis of a cadmium salt in an aqueous or organic solvent. The oxide film is then converted into cadmium sulfide by thermal ion exchange of the O.sup.-2 for S.sup.-2 by annealing the oxide layer in gaseous sulfur at elevated temperatures.

Muruska, H. Paul (East Windsor, NJ); Sansregret, Joseph L. (Scotch Plains, NJ); Young, Archie R. (Montclair, NJ)

1982-01-01T23:59:59.000Z

486

Study of ash deposition during coal combustion under oxyfuel conditions  

Science Journals Connector (OSTI)

This paper presents a comparative study on ash deposition of two selected coals, Russian coal and lignite, under oxyfuel (O2/CO2) and air combustion conditions. The comparison is based on experimental results and subsequent evaluation of the data and observed trends. Deposited as well as remaining filter ash (fine ash) samples were subjected to XRD and ICP analyses in order to study the chemical composition and mineral transformations undergone in the ash under the combustion conditions. The experimental results show higher deposition propensities under oxyfuel conditions; the possible reasons for this are investigated by analyzing the parameters affecting the ash deposition phenomena. Particle size seems to be larger for the Russian coal oxy-fired ash, leading to increased impaction on the deposition surfaces. The chemical and mineralogical compositions do not seem to differ significantly between air and oxyfuel conditions. The differences in the physical properties of the flue gas between air combustion and oxyfuel combustion, e.g. density, viscosity, molar heat capacity, lead to changes in the flow field (velocities, particle trajectory and temperature) that together with the ash particle size shift seem to play a role in the observed ash deposition phenomena.

L. Fryda; C. Sobrino; M. Glazer; C. Bertrand; M. Cieplik

2012-01-01T23:59:59.000Z

487

Modeling atmospheric deposition using a stochastic transport model  

SciTech Connect

An advanced stochastic transport model has been modified to include the removal mechanisms of dry and wet deposition. Time-dependent wind and turbulence fields are generated with a prognostic mesoscale numerical model and are used to advect and disperse individually released particles that are each assigned a mass. These particles are subjected to mass reduction in two ways depending on their physical location. Particles near the surface experience a decrease in mass using the concept of a dry deposition velocity, while the mass of particles located within areas of precipitation are depleted using a scavenging coefficient. Two levels of complexity are incorporated into the particle model. The simple case assumes constant values of dry deposition velocity and scavenging coefficient, while the more complex case varies the values according to meteorology, surface conditions, release material, and precipitation intensity. Instantaneous and cumulative dry and wet deposition are determined from the mass loss due to these physical mechanisms. A useful means of validating the model results is with data available from a recent accidental release of Cesium-137 from a steel-processing furnace in Algeciras, Spain in May, 1998. This paper describes the deposition modeling technique, as well as a comparison of simulated concentration and deposition with measurements taken for the Algeciras release.

Buckley, R.L.

1999-12-17T23:59:59.000Z

488

Solid particle deposition during turbulent flow production operations  

SciTech Connect

The production and transportation of petroleum fluids could be severely affected by deposition of suspended particles (i.e., asphaltene, paraffin/wax, sand, and/or diamondoid) in the production wells and/or transfer pipelines. In many instances the amount of precipitation is rather large causing complete plugging of these conduits. Therefore, it is important to understand the behavior of suspended particles during flow conditions. In this paper the authors present an analysis of the diffusional effects on the rate of solid particle deposition during turbulent flow conditions (crude oil production generally falls within this regime). The turbulent boundary layer theory and the concepts of mass transfer have been utilized to calculate the particle deposition rates on the walls of the flowing conduit. The developed model accounts for the eddy and Brownian diffusivities as well as for inertial effects. The analysis presented in this paper shows that rates of solid-particle deposition (during crude oil production) on the walls of the flowing channel due solely to diffusional effects are small. It is also shown that deposition rates decrease with increasing particle size. However, when the process is momentum controlled (large particle sizes) higher deposition rates are expected.

Escobedo, J.; Mansoori, G.A. [Univ. of Illinois, Chicago, IL (United States)

1995-12-31T23:59:59.000Z

489

In situ mass spectrometric study of pyrite (FeS{sub 2}) thin film deposition with metallorganic chemical vapor deposition  

SciTech Connect

Pyrite, FeS{sub 2}, thin films have been prepared by metallorganic chemical vapor deposition using tert-butyl disulfide (TBDS) and iron(III) acetylacetonate [Fe(acac){sub 3}] as the precursors and H{sub 2} as co-reactant. The reaction mechanism is studied with in situ mass spectrometry. The thermal decomposition of TBDS and Fe(acac){sub 3} has been investigated, as well as the synthesis of FeS{sub 2}. A complicated gas-phase reaction chain occurs in the deposition reaction. In the first 1--2 cm of the deposition zone, thick rough films are formed, but further downstream in the reactor a smooth FeS{sub 2} film is deposited. This remarkable change in morphology is accounted for in the proposed reaction mechanism.

Reijnen, L.; Meester, B.; Goossens, A.; Schoonman, J.

2000-05-01T23:59:59.000Z

490

Properties of nitrogen doped silicon films deposited by low pressure chemical vapour deposition from disilane and ammonia  

Science Journals Connector (OSTI)

Nitrogen doped silicon films have been deposited by low pressure chemical vapour deposition from disilane Si2H6 and ammonia NH3. Deposition kinetics is investigated, pointing out the influences of the deposition temperature, the total pressure and the gas flow rates. According to the Bruggeman theory, variations of the NH3/Si2H6 gaseous ratio allow for a wide range of the SiNx stoichiometry as well as a good control of the film nitrogen doping. The different behaviours of the nitrogen atom in silicon films are discussed and an overview of the nitrogen doped silicon physical properties (optical, mechanical and electrical) is proposed for the development of boron-doped polysilicon gates.

P Temple-Boyer; L Jalabert; E Couderc; E Scheid; P Fadel; B Rousset

2002-01-01T23:59:59.000Z

491

The growth characteristics of microcrystalline Si thin film deposited by atmospheric pressure plasma-enhanced chemical vapor deposition  

Science Journals Connector (OSTI)

Microcrystalline silicon thin film was grown by atmospheric pressure plasma-enhanced chemical vapor deposition (AP-PECVD) ... with a cylindrical rotary electrode supplied with 150 MHz very-high-frequency power. T...

Jung-Dae Kwon

2013-11-01T23:59:59.000Z

492

Method and apparatus for removing and preventing window deposition during photochemical vapor deposition (photo-CVD) processes  

DOE Patents (OSTI)

Unwanted build-up of the film deposited on the transparent light-transmitting window of a photochemical vacuum deposition (photo-CVD) chamber is eliminated by flowing an etchant into the part of the photolysis region in the chamber immediately adjacent the window and remote from the substrate and from the process gas inlet. The respective flows of the etchant and the process gas are balanced to confine the etchant reaction to the part of the photolysis region proximate to the window and remote from the substrate. The etchant is preferably one that etches film deposit on the window, does not etch or affect the window itself, and does not produce reaction by-products that are deleterious to either the desired film deposited on the substrate or to the photolysis reaction adjacent the substrate. 3 figs.

Tsuo, S.; Langford, A.A.

1989-03-28T23:59:59.000Z

493

Method and apparatus for removing and preventing window deposition during photochemical vapor deposition (photo-CVD) processes  

DOE Patents (OSTI)

Unwanted build-up of the film deposited on the transparent light-transmitting window of a photochemical vacuum deposition (photo-CVD) chamber is eliminated by flowing an etchant into the part of the photolysis region in the chamber immediately adjacent the window and remote from the substrate and from the process gas inlet. The respective flows of the etchant and the process gas are balanced to confine the etchant reaction to the part of the photolysis region proximate to the window and remote from the substrate. The etchant is preferably one that etches film deposit on the window, does not etch or affect the window itself, and does not produce reaction by-products that are deleterious to either the desired film deposited on the substrate or to the photolysis reaction adjacent the substrate.

Tsuo, Simon (Lakewood, CO); Langford, Alison A. (Boulder, CO)

1989-01-01T23:59:59.000Z

494

In-situ deposition of high-k dielectrics on III-V compound semiconductor in MOCVD system  

E-Print Network (OSTI)

In situ deposition of high-k materials to passivate the GaAs in metal organic chemical vapor deposition (MOCVD) system was well demonstrated. Both atomic layer deposition (ALD) and chemical vapor deposition (CVD) methods ...

Cheng, Cheng-Wei, Ph.D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

495

Ash Deposit Formation and Deposit Properties. A Comprehensive Summary of Research Conducted at Sandia's Combustion Research Facility  

SciTech Connect

This report summarizes experimental and theoretical work performed at Sandia's Combustion Research Facility over the past eight years on the fate of inorganic material during coal combustion. This work has been done under four broad categories: coal characterization, fly ash formation, ash deposition, and deposit property development. The objective was to provide sufficient understanding of these four areas to be able to predict coal behavior in current and advanced conversion systems. This work has led to new characterization techniques for fuels that provide, for the first time, systematic and species specific information regarding the inorganic material. The transformations of inorganic material during combustion can be described in terms of the net effects of the transformations of these individual species. Deposit formation mechanisms provide a framework for predicting deposition rates for abroad range of particle sizes. Predictions based on these rates many times are quite accurate although there are important exceptions. A rigorous framework for evaluating deposit has been established. Substantial data have been obtained with which to exercise this framework, but this portion of the work is less mature than is any other. Accurate prediction of deposit properties as functions of fuel properties, boiler design, and boiler operating conditions represents the single most critical area where additional research is needed.

Larry L. Baxter

2000-08-01T23:59:59.000Z

496

Depositional systems distribution of the lower Oligocene Vicksburg Formation, TX  

SciTech Connect

The lower Oligocene Vicksburg Formation of Texas is situated between the upper Eocene Jackson Group and the upper Oligocene Frio Formation. The paleogeography of the Texas Gulf coastal plain during the early Oligocene is typical of a progradational passive continental margin. However, a detailed regional depositional systems analysis of stratigraphic units, such as the Vicksburg, within a mature petroleum basin can yield results beneficial in both exploration and development. Stratigraphic plays are determined from the distribution of depositional systems, and reservoir characteristics are heavily influenced by conditions of sedimentation. Two primary depocenters (and exploration fairways) of the Texas Vicksburg were the Houston Embayment and the Rio Grande Embayment; they were separated by a deep-rooted structural nose in central Texas: the San Marcos arch. Within the embayments, deltaic depositional systems merged along strike with barrier/strand plain systems. Updip, fluvial systems traversed coastal plain units. On the seaward edge of the paralic systems, sand and mud deposits prograded across, and built up over, the relict Jackson shelf and shelf margin. Contemporaneous growth faulting controlled deltaic depositional patterns in the Rio Grande Embayment and, to a lesser degree, in the Houston Embayment. A barrier/strand plain system within an interdeltaic coastal bight extended across the northern flank of the San Marcos arch. Several minor wave-dominated delta complexes were interspersed within this regional setting. The southern flank of the arch was influenced by the fluvial systems of the Rio Grande Embayment that established another wave-dominated delta. Deposition of the Vicksburg progradational paralic sediments was initiated seaward of the Jackson coastal position. A brief, minor transgression interrupted the progradational pattern during middle Vicksburg deposition.

Coleman, J.; Galloway, W.E. (Univ. of Texas, Austin (USA))

1990-05-01T23:59:59.000Z

497

Uranium deposition study on aluminum: results of early tests  

SciTech Connect

Laboratory experiments to quantify uranium compound deposition on Aluminum 3003 test coupons have been initiated. These experiments consist of exposing the coupons to normal assay UF/sub 6/ (0.7% /sup 235/U) in nickel reaction vessels under various conditions of UF/sub 6/ pressure, temperature, and time. To-date, runs from 5 minutes to 2000 hr have been completed at a UF/sub 6/ pressure of 100 torr and at a temperature of 60/sup 0/C. Longer exposure times are in progress. Initial results indicated that a surface film of uranium, primarily as uranyl fluoride (UO/sub 2/F/sub 2/), is deposited very soon after exposure to UF/sub 6/. In a five minute UF/sub 6/ exposure at a temperature of 60/sup 0/C, an average of 2.9 ..mu..g U/cm/sup 2/ was deposited; after 24 hr the deposit typically increased to 5.0 ..mu..g/cm/sup 2/ and then increased to 10.4 ..mu..g/cm/sup 2/ after 2000 hr. This amount of deposit (at 2000 hr exposure) would contribute roughly 10 to 20% to the total 186 keV gamma signal obtained from a GCEP product header pipe being operated at UF/sub 6/ pressures of 2 to 5 torr. The amount of isotopic exchange which would occur in the deposit in the event that HEU and LEU productions were alternated is considered. It is felt that isotopic exchange would not occur to any significant amount within the fixed deposit during relatively short HEU production periods since the HEU would be present primarily as adsorbed UF/sub 6/ molecules on the surface of the deposit. The adsorbed HEU molecules would be removed by evacuation and diluted by LEU production. Major increases in the deposit count would be observed if a leak occurred or moisture was introduced into the system while HEU was being produced.

Hughes, M.R.; Nolan, T.A.

1984-06-19T23:59:59.000Z

498

Late Jurassic extension in the Bisbee basin: Marine and volcanic strata of the Chiricahua Mountains, Arizona  

SciTech Connect

Upper Jurassic strata in the northeastern Chiricahua Mountains provide unambiguous stratigraphic and geographic links between the Chihuahua trough of north-central Mexico and the Bisbee basin of southeastern Arizona. Approximately 1,800 m of limestone, shale, and mafic volcanic rocks overlie the Glance Conglomerate and underlie fluvial redbeds of the Lower Cretaceous Morita Formation. Basal strata are alluvial-fan and sabkha deposits. A thick (150 m), ammonite-bearing black shale interval above the sabkha deposits indicates an abrupt increase of water depths; deepening was accompanied initially by emplacement of subaerial basalt flows and subsequently by deposition of basaltic tuff and pillow lava. Ammonites are present both below and above the tuff and indicate its exclusively subaqueous origin. Arkosic deltaic deposits above the tuff were derived from Precambrian rocks of the footwall block to the northeast. At least 200 m of mafic subaerial flows, previously regarded as mid-Tertiary, overlie the deltaic deposits. The existence of a depleted mantle source beneath the Bisbee basin at 150 Ma suggests a unique tectonic setting that combined backarc and Gulf of Mexico extension.

Lawton, T.F.; McMillan, N.J. (New Mexico State Univ., Las Cruces, NM (United States)); Cameron, K.L. (Univ. of California, Santa Cruz, CA (United States). Earth Sciences Board)

1993-04-01T23:59:59.000Z

499

Criticality safety concerns of uranium deposits in cascade equipment  

SciTech Connect

The Paducah and Portsmouth Gaseous Diffusion Plants enrich uranium in the {sup 235}U isotope by diffusing gaseous uranium hexafluoride (UF{sub 6}) through a porous barrier. The UF{sub 6} gaseous diffusion cascade utilized several thousand {open_quotes}stages{close_quotes} of barrier to produce highly enriched uranium (HEU). Historically, Portsmouth has enriched the Paducah Gaseous Diffusion Plant`s product (typically 1.8 wt% {sup 235}U) as well as natural enrichment feed stock up to 97 wt%. Due to the chemical reactivity of UF{sub 6}, particularly with water, the formation of solid uranium deposits occur at a gaseous diffusion plant. Much of the equipment operates below atmospheric pressure, and deposits are formed when atmospheric air enters the cascade. Deposits may also be formed from UF{sub 6} reactions with oil, UF{sub 6} reactions with the metallic surfaces of equipment, and desublimation of UF{sub 6}. The major deposits form as a result of moist air in leakage due to failure of compressor casing flanges, blow-off plates, seals, expansion joint convolutions, and instrument lines. This report describes criticality concerns and deposit disposition.

Plaster, M.J. [Lockheed Martin Utility Services, Inc., Piketon, OH (United States)

1996-12-31T23:59:59.000Z

500

Room-temperature high radio-frequency source power effects on silicon nitride films deposited by using a plasma-enhanced chemical vapor deposition  

Science Journals Connector (OSTI)

Silicon nitride films were deposited at room temperature using a plasma-enhanced chemical vapor deposition system. In this study, the effects of radio frequency (RF) source power ranging from 200 W to ... charact...

Byungwhan Kim; Suyeon Kim

2008-10-01T23:59:59.000Z