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1

Heating Degree Days  

U.S. Energy Information Administration (EIA) Indexed Site

Heating Degree Days Heating Degree Days New England ................ 2,626 737 115 2,062 3,105 849 159 2,247 3,184 872 136 2,180 5,541 6,359 6,373 Middle Atlantic .............. 2,326 576 85 1,899 2,906 672 123 2,041 2,924 682 90 1,986 4,886 5,742 5,682 E. N. Central ................. 2,440 621 139 2,150 3,279 772 119 2,343 3,141 726 129 2,230 5,350 6,514 6,227 W. N. Central ................ 2,515 520 143 2,360 3,424 908 103 2,541 3,216 677 152 2,404 5,539 6,976 6,450 South Atlantic ............... 1,129 168 16 992 1,513 217 21 1,059 1,466 202 16 1,010 2,306 2,809 2,695 E. S. Central ................. 1,361 180 28 1,326 1,939 289 16 1,430 1,839 245 23 1,336 2,896 3,675 3,443 W. S. Central ................ 913 38 3 729 1,189 141 2 909 1,150 83 5 821 1,682 2,239 2,060 Mountain ....................... 2,063 542 98 1,741 2,430 689 101 1,885 2,189 642 130 1,817 4,444

2

Building Energy Software Tools Directory: Degree Day Forecasts  

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

Forecasts Forecasts Degree Day Forecasts example chart Quick and easy web-based tool that provides free 14-day ahead degree day forecasts for 1,200 stations in the U.S. and Canada. Degree Day Forecasts charts show this year, last year and three-year average. Historical degree day charts and energy usage forecasts are available from the same site. Keywords degree days, historical weather, mean daily temperature Validation/Testing Degree day data provided by AccuWeather.com, updated daily at 0700. Expertise Required No special expertise required. Simple to use. Users Over 1,000 weekly users. Audience Anyone who needs degree day forecasts (next 14 days) for the U.S. and Canada. Input Select a weather station (1,200 available) and balance point temperature. Output Charts show (1) degree day (heating and cooling) forecasts for the next 14

3

cooling degree days | OpenEI  

Open Energy Info (EERE)

cooling degree days cooling degree days Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, cooling degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Source NOAA Date Released Unknown Date Updated June 24th, 2005 (9 years ago) Keywords climate cooling degree days NOAA Data application/vnd.ms-excel icon hcs_51_avg_cdd.xls (xls, 215.6 KiB) Quality Metrics Level of Review Some Review

4

Heating degree days | OpenEI  

Open Energy Info (EERE)

Heating degree days Heating degree days Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, heating degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Source NOAA Date Released Unknown Date Updated June 24th, 2005 (9 years ago) Keywords climate Heating degree days NOAA Data application/vnd.ms-excel icon Heating Degree Data, by State (xls, 208.4 KiB) Quality Metrics Level of Review Some Review

5

Building Energy Software Tools Directory: Degree Day Reports  

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

Reports Degree Day Reports image Quick and easy web-based tool that provides free historical degree days for 1,200 stations in the U.S. and Canada, 1994 to present. Degree Day...

6

Building Energy Software Tools Directory: Degree Day .Net  

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

Degree Day .Net Degree Day .Net Logo for Degree Day.net Website that generates heating and cooling degree days for locations worldwide. Degree days are commonly used in calculations relating to building energy consumption. Once you have chosen a weather station (of which there are thousands available) and specified the degree days you want (e.g. what base temperature, do you want them broken down in daily, weekly or monthly format), Degree Days.net will calculate your degree days, and give them to you as a CSV file that you can open directly in a spreadsheet. Screen Shots Keywords degree days, HDD, CDD Validation/Testing A comprehensive suite of automated tests have been written to test the software. Expertise Required Degree Days.net makes it very easy to specify and generate degree days, so

7

A simple proof of Jordan normal form  

E-Print Network (OSTI)

In this note, a simple proof Jordan normal form and rational form of matrices over a field is given.

Chen, Yuqun

2011-01-01T23:59:59.000Z

8

Climate: monthly and annual average cooling degree days above...  

Open Energy Info (EERE)

at one-degree resolution of the World from NASASSE

(Abstract):
Cooling Degree Days above 10 C (degree days)
The monthly accumulation of degrees when...

9

annual average heating degree days | OpenEI  

Open Energy Info (EERE)

average heating degree days average heating degree days Dataset Summary Description (Abstract): Heating Degree Days below 18° C (degree days)The monthly accumulation of degrees when the daily mean temperature is below 18° C.NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly Average & Annual Sum (July 1983 - June 2005)Parameter: Heating Degree Days Below 18 degrees C (degree days)Internet: http://eosweb.larc.nasa.gov/sse/ Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords annual average heating degree days climate GIS NASA SWERA UNEP Data application/zip icon Download Shapefile (zip, 2.7 MiB)

10

Degree-Day Formulations and Application in Turkey  

Science Conference Proceedings (OSTI)

Degree-days are fundamental design parameters in many application fields such as power generation and consumption, agriculture, architecture, snow melt estimation, environmental energy planning, population siting, and military domains. Depending ...

Mikdat Kadioglu; Zekai ?en

1999-06-01T23:59:59.000Z

11

Estimating Historical Heating and Cooling Needs. Per Capita Degree Days  

Science Conference Proceedings (OSTI)

Time series of approximate United States average annual per capita heating and cooling degree days for the years 18951983 are presented. The data reflect the combined effects of climate fluctuations and population shifts, and can be used in ...

M. W. Downton; T. R. Stewart; K. A. Miller

1988-01-01T23:59:59.000Z

12

Variability of Population-Weighted Seasonal Heating Degree Days  

Science Conference Proceedings (OSTI)

Regional and national heating fuel demand is related to both weather and population density. This study analyzes the variability of population-weighted, seasonal heating degree days for the coterminous 48 states. A risk assessment of unusual ...

Nathaniel B. Guttman

1983-03-01T23:59:59.000Z

13

Heating Degree Day Data Applied to Residential Heating Energy Consumption  

Science Conference Proceedings (OSTI)

Site-specific total electric energy and heating oil consumption for individual residences show a very high correlation with National Weather Service airport temperature data when transformed to heating degree days. Correlations of regional total ...

Robert G. Quayle; Henry F. Diaz

1980-03-01T23:59:59.000Z

14

Trends in Heating and Cooling Degree Days: Implications for Energy Demand Issues  

Reports and Publications (EIA)

Weather-related energy use, in the form of heating, cooling, and ventilation, accounted for more than 40 percent of all delivered energy use in residential and commercial buildings in 2006. Given the relatively large amount of energy affected by ambient temperature in the buildings sector, EIA has reevaluated what it considers normal weather for purposes of projecting future energy use for heating, cooling, and ventilation. In AEO2008, estimates of normal heating and cooling degree-days are based on the population-weighted average for the 10-year period from 1997 through 2006.

2011-02-07T23:59:59.000Z

15

Trends in Heating and Cooling Degree Days: Implications for Energy Demand Issues (released in AEO2008)  

Reports and Publications (EIA)

Weather-related energy use, in the form of heating, cooling, and ventilation, accounted for more than 40 percent of all delivered energy use in residential and commercial buildings in 2006. Given the relatively large amount of energy affected by ambient temperature in the buildings sector, EIA has reevaluated what it considers normal weather for purposes of projecting future energy use for heating, cooling, and ventilation. In AEO2008, estimates of normal heating and cooling degree-days are based on the population-weighted average for the 10-year period from 1997 through 2006.

Information Center

2008-09-24T23:59:59.000Z

16

The estimation of base temperature for heating and cooling degree days for Korea  

Science Conference Proceedings (OSTI)

In Korea, heating degree days (HDD) and cooling degree days (CDD) have been widely used as climatic indicators for the assessment of the impact of climate change, but arbitrary or customary base temperatures have been used for calculation of HDD ...

Kyoungmi Lee; Hee-Jeong Baek; ChunHo Cho

17

Table 1.9 Heating Degree-Days by Census Division  

U.S. Energy Information Administration (EIA)

Normala 2012 2013 Percent Change Normala 2012 2013 ... F would report 25 heating degree-days for that day ... See ...

18

A degree-day method for residential heating load calculations specifically incorporating the utilization of solar gains  

DOE Green Energy (OSTI)

A simple and well known method of estimating residential heating loads is the variable base degree-day method, in which the steady-state heat loss rate (UA) is multiplied by the degree-days based from the balance temperature of the structure. The balance temperature is a function of the UA as well as the average rate of internal heat gains, reflecting the displacement of the heating requirements by these gains. Currently, the heat gains from solar energy are lumped with those from appliances to estimate an average rate over the day. This ignores the effects of the timing of the gains from solar energy, which are more highly concentrated during daytime hours, hence more frequently exceeding the required space heat and less utilizable than the gains from appliances. Simulations or specialized passive solar energy calculation methods have previously been required to account for this effect. This paper presents curves of the fraction of the absorbed solar energy utilized for displacement of space heat, developed by comparing heating loads calculated using a variable base degree-day method (ignoring solar gains) to heating loads from a large number of detailed DOE-2 simulations. The difference in the loads predicted by the two methods can be interpreted as the utilized solar gains. The solar utilization decreases as the thermal integrity increases, as expected, and the solar utilizations are similar across climates. They can be used to estimate the utilized fraction of the absorbed solar energy and, with the load predicted by the variable base degree-day calculation, form a modified degree-day method that closely reproduces the loads predicted by the DOE-2 simulation model and is simple enough for hand calculations. 6 refs., 6 figs., 2 tabs.

Lucas, R.G.; Pratt, R.G.

1990-09-01T23:59:59.000Z

19

cooling degree-days - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

Alternative Fuels. Includes hydropower, solar, wind, geothermal, biomass and ethanol. ... Cooling degree-days. There are no record(s) that match your search criteria.

20

Table 1.10 Cooling Degree-Days by Census Division, 1949-2011  

U.S. Energy Information Administration (EIA)

Table 1.10 Cooling Degree-Days by Census Division, 1949-2011: Year: New England: Middle Atlantic: East North Central: West North Central: South Atlantic: East South

Note: This page contains sample records for the topic "degree-day normals simple" 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

Climate: monthly and annual average cooling degree days above 10° C GIS  

Open Energy Info (EERE)

cooling degree days above 10° C GIS cooling degree days above 10° C GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Cooling Degree Days above 10° C (degree days)The monthly accumulation of degrees when the daily mean temperature is above 10° C.NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly Average & Annual Sum (July 1983 - June 2005)Parameter: Cooling Degree Days Above 10 degrees C (degree days)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180,

22

Climate: monthly and annual average heating degree days below 18° C GIS  

Open Energy Info (EERE)

heating degree days below 18° C GIS heating degree days below 18° C GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Heating Degree Days below 18° C (degree days)The monthly accumulation of degrees when the daily mean temperature is below 18° C.NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly Average & Annual Sum (July 1983 - June 2005)Parameter: Heating Degree Days Below 18 degrees C (degree days)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180,

23

Cooling Degree Days, by State (Weighted by Population, per 2000 Census) |  

Open Energy Info (EERE)

Cooling Degree Days, by State (Weighted by Population, per 2000 Census) Cooling Degree Days, by State (Weighted by Population, per 2000 Census) Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, cooling degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Included here are monthly and annual values averaged over several periods of time: 1931-2000, 1931-60, 1941-70, 1951-80, 1961-90, 1971-2000 (standard deviation is also provided). Detailed monthly climatic information (including cooling degree days) is available for the time period between 1895 and 2011, from NOAA (http://www7.ncdc.noaa.gov/CDO/CDODivisionalSelect.jsp#).

24

A Study of the Severity of the Midwestern Winters of 1977 and 1978 Using Heating Degree Days Determined from Both Measured and Wind Chill Temperatures  

Science Conference Proceedings (OSTI)

The winters of 197677 and 197778 were severe by virtually any standard. In this study, heating degree day (NDD) accumulations for these two winters as well as for the 194170 normals are examined at 31 National Weather Service stations in ...

Patricia M. Dare

1981-07-01T23:59:59.000Z

25

Heating Degree Days, by State (Weighted by Population, per 2000 Census) |  

Open Energy Info (EERE)

66 66 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142278566 Varnish cache server Heating Degree Days, by State (Weighted by Population, per 2000 Census) Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, heating degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Included here are monthly and annual values averaged over several periods of time: 1931-2000, 1931-60, 1941-70, 1951-80, 1961-90, 1971-2000 (standard deviation is also provided). Detailed monthly climatic information (including heating degree days) is available for the time period between 1895 and 2011, from NOAA (http://www7.ncdc.noaa.gov/CDO/CDODivisionalSelect.jsp#).

26

Skillful Seasonal Predictions of Boreal Winter Accumulated Heating Degree-Days and Relevance for the Weather Derivative Market  

Science Conference Proceedings (OSTI)

It is demonstrated that boreal winter accumulated heating degree-days, a weather derivative product that is frequently demanded by energy suppliers (among others), can be skillfully predicted with a lead time of 1 month, that is, at the beginning ...

S. Brands

2013-06-01T23:59:59.000Z

27

Projecting Monthly Natural Gas Sales for Space Heating Using a Monthly Updated Model and Degree-days from Monthly Outlooks  

Science Conference Proceedings (OSTI)

The problem of projecting monthly residential natural gas sales and evaluating interannual changes in demand is investigated using a linear regression model adjusted monthly. with lagged monthly heating degree-days as the independent variable. ...

Richard L. Lehman; Henry E. Warren

1994-01-01T23:59:59.000Z

28

Maximum Freezing Degree-Days as a Winter Severity Index for the Great Lakes, 18971977  

Science Conference Proceedings (OSTI)

General regional and temporal trends in maximum freezing degree-days (FDD's) are identified for the shore zone of the Great Lakes Basin for the 80 winter periods 18971977. The cumulative frequency distribution of FDD's at cub of 25 locations is ...

Raymond A. Assel

1980-09-01T23:59:59.000Z

29

Insolation data manual: long-term monthly averages of solar radiation, temperature, degree-days and global anti K/sub T/ for 248 national weather service stations  

DOE Green Energy (OSTI)

Monthly averaged data is presented which describes the availability of solar radiation at 248 National Weather Service stations. Monthly and annual average daily insolation and temperature values have been computed from a base of 24 to 25 years of data. Average daily maximum, minimum, and monthly temperatures are provided for most locations in both Celsius and Fahrenheit. Heating and cooling degree-days were computed relative to a base of 18.3/sup 0/C (65/sup 0/F). For each station, global anti K/sub T/ (cloudiness index) were calculated on a monthly and annual basis. (MHR)

Knapp, C L; Stoffel, T L; Whitaker, S D

1980-10-01T23:59:59.000Z

30

Degree-Days - Energy Explained, Your Guide To Understanding Energy ...  

U.S. Energy Information Administration (EIA)

Landfill Gas and Biogas; Biomass & the Environment See also: Biofuels. Biofuels: Ethanol & Biodiesel. Ethanol; Use of Ethanol; Ethanol & the Environment; Biodiesel;

31

Building Energy Software Tools Directory: Degree Day Forecasts  

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

Tools by Country Australia Austria Belarus Belgium Brazil Canada Chile China Czech Republic Denmark Finland France Germany India Ireland Israel Italy Japan Netherlands New Zealand...

32

Simple Jordan conformal superalgebras  

E-Print Network (OSTI)

We classify simple finite Jordan conformal superalgebras and establish preliminary results for the classification of simple finite Jordan pseudoalgebras.

Kac, Victor G

2008-01-01T23:59:59.000Z

33

Normal matter storage of antiprotons  

SciTech Connect

Various simple issues connected with the possible storage of anti p in relative proximity to normal matter are discussed. Although equilibrium storage looks to be impossible, condensed matter systems are sufficiently rich and controllable that nonequilibrium storage is well worth pursuing. Experiments to elucidate the anti p interactions with normal matter are suggested. 32 refs.

Campbell, L.J.

1987-01-01T23:59:59.000Z

34

Free unitary groups are (almost) simple  

SciTech Connect

We show that the quotients of Wang and Van Daele's universal quantum groups by their centers are simple in the sense that they have no normal quantum subgroups, thus providing the first examples of simple compact quantum groups with non-commutative fusion rings.

Chirvasitu, Alexandru [Department of Mathematics, University of California, Berkeley, California 94720-3840 (United States)

2012-12-15T23:59:59.000Z

35

Normal Mode Initialization with Elementary Surface Friction  

Science Conference Proceedings (OSTI)

Various normal-mode initialization techniques are applied to a simple 12-level linear model with boundary layer friction, and results are compared to exact solutions of the model. It is found that Machenhauer's initialization scheme gives an ...

Bradley A. Ballish; Ferdinand Baer

1985-02-01T23:59:59.000Z

36

Simple Models of Stratification  

Science Conference Proceedings (OSTI)

Simple analytical and numerical models of gratified circulation are discussed. The models are driven by buoyancy and mechanical forcing, and buoyancy diffusion is parameterized in term of diapycnal mass fluxes. The interior responds in typical ...

William K. Dewar

1991-12-01T23:59:59.000Z

37

The Regime Dependence of Degree Day Forecast Technique, Skill, and Value  

Science Conference Proceedings (OSTI)

An investigation into the manner in which forecasters adjust their reliance on particular pieces of forecast information as the large-scale flow pattern evolves into different regimes, and the relationship between those adjustments and forecast ...

Paul J. Roebber

1998-09-01T23:59:59.000Z

38

Table 1.8 Cooling Degree-Days by Month, 1949-2011  

U.S. Energy Information Administration (EIA)

1954. 11 : 12: 11: 55 : 65 : 241 : 356 : 296 : 195 : 60 : 9 : 4 : 1,315 : 1955. 6 : 7: 20: 45 : 121 : 161 : 381 : 355 : 182 : 50 : 10 : 6 : 1,344 : ...

39

Table 1.9 Heating Degree-Days by Census Division, 1949-2011  

U.S. Energy Information Administration (EIA)

1954. 6,291: 5,473: 5,841: 6,063: 2,713: 3,211: 1,876: 4,679: 3,296: 4,232: 1955. 6,577: 5,708: 6,101: 6,630: 2,786: 3,314: 2,083: 5,517: 3,723: ...

40

Table 1.7 Heating Degree-Days by Month, 1949-2011  

U.S. Energy Information Administration (EIA)

1954. 886: 577: 646: 261: 192: 32: 8: 18: 56: 224: 523: 809: 4,232: 1955. 927: 759: 600: 272: 121: 48: 9: 6: 56: 237: 600: 886: 4,521: 1956. 900: 723: ...

Note: This page contains sample records for the topic "degree-day normals simple" 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

Contemporaneous Relationships between Global Radiation and Heating Degree Days during Severe Winters in the United States  

Science Conference Proceedings (OSTI)

The global radiation climate associated with anomalously cold winter months and cold winters is analyzed for the contiguous United States. The radiation data consist of rehabilitated measured and modeled monthly values of global radiation on both ...

Thomas R. Karl; Frank T. Quinlan

1984-03-01T23:59:59.000Z

42

Simple deterministic wildcard matching  

Science Conference Proceedings (OSTI)

We present a simple and fast deterministic solution to the string matching with don't cares problem. The task is to determine all positions in a text where a pattern occurs, allowing both pattern and text to contain single character wildcards. Our algorithm ... Keywords: Algorithms, String matching, Wildcards

Peter Clifford; Raphal Clifford

2007-01-01T23:59:59.000Z

43

Climatic Temperature Normals  

Science Conference Proceedings (OSTI)

The published 195180 daily normals of maximum and minimum temperatures were prepared by interpolating between average monthly values. This study compares the published normal and 30-yr average daily temperatures in the eastern half of the United ...

Nathaniel B. Guttman; Marc S. Plantico

1987-10-01T23:59:59.000Z

44

Simple model for decay of superdeformed nuclei  

E-Print Network (OSTI)

Recent theoretical investigations of the decay mechanism out of a superdeformed nuclear band have yielded qualitatively different results, depending on the relative values of the relevant decay widths. We present a simple two-level model for the dynamics of the tunneling between the superdeformed and normal-deformed bands, which treats decay and tunneling processes on an equal footing. The previous theoretical results are shown to correspond to coherent and incoherent limits of the full tunneling dynamics. Our model accounts for experimental data in both the A~150 mass region, where the tunneling dynamics is coherent, and in the A~190 mass region, where the tunneling dynamics is incoherent.

C. A. Stafford; B. R. Barrett

1999-06-17T23:59:59.000Z

45

Simple Coupled Midlatitude Climate Models  

Science Conference Proceedings (OSTI)

A set of simple analytical models is presented and evaluated for interannual to decadal coupled oceanatmosphere modes at midlatitudes. The atmosphere and ocean are each in Sverdrup balance at these long timescales. The atmospheres temperature ...

Lynne D. Talley

1999-08-01T23:59:59.000Z

46

Testing Simple Models of ENSO  

Science Conference Proceedings (OSTI)

The realistic simulation of El NioSouthern Oscillation (ENSO) by the University of California, Los Angeles (UCLA), coupled atmosphereocean general circulation model (CGCM) is used to test two simple theoretical models of the phenomenon: the ...

Carlos R. Mechoso; J. David Neelin; Jin-Yi Yu

2003-01-01T23:59:59.000Z

47

Forecast Calibration and Combination: A Simple Bayesian Approach for ENSO  

Science Conference Proceedings (OSTI)

This study presents a new simple approach for combining empirical with raw (i.e., not bias corrected) coupled model ensemble forecasts in order to make more skillful interval forecasts of ENSO. A Bayesian normal model has been used to combine ...

C. A. S. Coelho; S. Pezzulli; M. Balmaseda; F. J. Doblas-Reyes; D. B. Stephenson

2004-04-01T23:59:59.000Z

48

SIMPLE  

E-Print Network (OSTI)

Much of the success of video for instruction or research rests on the material used to support goals and objectives. This paper suggests guidelines intended to simplify the process of converting existing and new recordings into something useful. A quick comment about how video and audio recordings are processed may be

Michael R. Chial, Ph.D.

2008-01-01T23:59:59.000Z

49

Insolation data manual and direct normal solar radiation data manual  

DOE Green Energy (OSTI)

The Insolation Data Manual presents monthly averaged data which describes the availability of solar radiation at 248 National Weather Service (NWS) stations, principally in the United States. Monthly and annual average daily insolation and temperature values have been computed from a base of 24--25 years of data, generally from 1952--1975, and listed for each location. Insolation values represent monthly average daily totals of global radiation on a horizontal surface and are depicted using the three units of measurement: kJ/m{sup 2} per day, Btu/ft{sup 2} per day and langleys per day. Average daily maximum, minimum and monthly temperatures are provided for most locations in both Celsius and Fahrenheit. Heating and cooling degree-days were computed relative to a base of 18.3 C (65 F). For each station, global {bar K}{sub T} (cloudiness index) values were calculated on a monthly and annual basis. Global {bar K}{sub T} is an index of cloudiness and indicates fractional transmittance of horizontal radiation, from the top of the atmosphere to the earth's surface. The second section of this volume presents long-term monthly and annual averages of direct normal solar radiation for 235 NWS stations, including a discussion of the basic derivation process. This effort is in response to a generally recognized need for reliable direct normal data and the recent availability of 23 years of hourly averages for 235 stations. The relative inaccessibility of these data on microfiche further justifies reproducing at least the long-term averages in a useful format. In addition to a definition of terms and an overview of the ADIPA model, a discussion of model validation results is presented.

none,

1990-07-01T23:59:59.000Z

50

Simple Energy | Open Energy Information  

Open Energy Info (EERE)

Simple Energy Simple Energy Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Simple Energy Agency/Company /Organization: Simple Energy Sector: Energy Focus Area: Energy Efficiency Resource Type: Software/modeling tools User Interface: Website Website: www.simpleenergy.com/ Country: United States Web Application Link: www.simpleenergy.com/ Cost: Free OpenEI Keyword(s): Green Button Apps, Featured UN Region: Northern America Coordinates: 40.0149856°, -105.2705456° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.0149856,"lon":-105.2705456,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

51

Simple two Higgs doublet model  

E-Print Network (OSTI)

We study a simple two Higgs doublet model which reflects, in a phenomenological way, the idea of compositeness for the Higgs sector. It is relatively predictive. In one scenario, it allows for a "hidden" usual Higgs particle in the 100 GeV region and a possible dark matter candidate.

Jora, Renata; Nasri, Salah; Schechter, Joseph; Shahid, M Naeem

2008-01-01T23:59:59.000Z

52

A Simple Theory for Waterspouts  

Science Conference Proceedings (OSTI)

It is shown that the simple thermodynamic theory for dust devils, proposed by Renn et al., also applies to waterspouts. The theory is based on the thermodynamics of heat engines and predicts the central pressure and the wind speed of these ...

Nilton O. Renn; Howard B. Bluestein

2001-04-01T23:59:59.000Z

53

Simple Inference Heuristics versus Complex Decision Machines  

Science Conference Proceedings (OSTI)

Keywords: complex algorithms, decision making, deep thought, fast and frugal decisions, simple heuristics

Peter M. Todd

1999-11-01T23:59:59.000Z

54

Simple Solar Spectral Model for Direct and Diffuse Irradiance on Horizontal and Tilted Planes at the Earth's Surface for Cloudless Atmospheres  

Science Conference Proceedings (OSTI)

In a previous work, we described a simple model for calculating direct normal and diffuse horizontal spectral solar irradiance for cloudless sky conditions. In this paper, we present a new simple model (SPCTRAL2) that incorporates improvements to ...

Richard E. Bird; Carol Riordan

1986-01-01T23:59:59.000Z

55

A simple theory of condensation  

Science Conference Proceedings (OSTI)

A simple assumption of the emergence in gas of small atomic clusters consisting of c particles each leads to a phase separation (first-order transition). It reveals itself by the emergence of a 'forbidden' density range starting at a certain temperature. Defining this latter value as the critical temperature predicts the existence of an interval with the anomalous heat capacity behavior c{sub p} {proportional_to} {Delta}T{sup -1/c}. The value c = 13 suggested in the literature yields the heat capacity exponent {alpha} = 0.077.

Rabinovich, S., E-mail: shaulr@orange.net.il [Digital Verification Technology (Israel)

2011-04-15T23:59:59.000Z

56

Simple laws of urban growth  

E-Print Network (OSTI)

By analysing the evolution of the street network of Greater London from the late 1700s to the present, we are able to shed light on the inner mechanisms that lie behind the growth of a city. First we define an object called a city as a spatial discontinuous phenomena, from clustering the density of street intersections. Second, we find that the city growth mechanisms can be described by two logistic laws, hence can be determined by a simple model of urban network growth in the presence of competition for limited space.

Masucci, Paolo; Batty, Michael

2012-01-01T23:59:59.000Z

57

Simple Models of Superconformal Flavor  

E-Print Network (OSTI)

The observed hierarchy of fermion masses and mixings may be generated by renormalization group flow if the Standard Model is coupled to a near-conformal sector at high energies. If the conformal sector is supersymmetric, these effects are rendered calculable by a combination of superconformal symmetry and a-maximization. The viability of such models depends on whether they generate the observed fermion mass hierarchy before the Standard Model gauge couplings hit a Landau pole. Here we construct a variety of simple vector-like models of superconformal flavor, including both ten-centered and democratic variations. We discuss in detail the subtleties of applying the a-maximization procedure to determine anomalous dimensions of Standard Model fields. We find that a wide range of models based on SU(N) or Sp(2N) SQCD with fundamental and adjoint matter are viable theories of superconformal flavor.

Craig, Nathaniel

2010-01-01T23:59:59.000Z

58

A Simple Thermodynamical Theory for Dust Devils  

Science Conference Proceedings (OSTI)

Based on the heat engine framework, a simple scaling theory for dust devils is proposed and compared to observations. This theory provides a simple physical interpretation for many of the observed characteristics of dust devils. In particular, it ...

Nilton O. Renn; Matthew L. Burkett; Matthew P. Larkin

1998-11-01T23:59:59.000Z

59

Simple cost model for EV traction motors  

DOE Green Energy (OSTI)

A simple cost model has been developed that allows the calculation of the OEM cost of electric traction motors of three different types, normalized as a function of power in order to accommodate different power and size. The model includes enough information on the various elements integrated in the motors to allow analysis of individual components and to factor-in the effects of changes in commodities prices. A scalable cost model for each of the main components of an electric vehicle (EV) is a useful tool that can have direct application in computer simulation or in parametric studies. For the cost model to have wide usefulness, it needs to be valid for a range of values of some parameter that determines the magnitude or size of the component. For instance, in the case of batteries, size may be determined by energy capacity, usually expressed in kilowatt-hours (kWh), while in the case of traction motors, size is better determined by rated power, usually expressed in kilowatts (kW). The simplest case is when the cost of the component in question is a direct function of its size; then cost is simply the product of its specific cost ($/unit size) and the number of units (size) in the vehicle in question. Batteries usually fall in this category (cost = energy capacity x $/kWh). But cost is not always linear with size or magnitude; motors (and controllers), for instance, become relatively less expensive as power rating increases. Traction motors, one of the main components for EV powertrains are examined in this paper, and a simplified cost model is developed for the three most popular design variations.

Cuenca, R.M.

1995-02-01T23:59:59.000Z

60

normal  

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

4202010 Cushman & Wakefield Marks 40 th Earth Day Celebrating New Milestones in Sustainability NEW YORK, April 22, 2010 -- Global real estate services firm Cushman & Wakefield...

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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

Cryptographic Hash Workshop (2005) - A Simple and ...  

Science Conference Proceedings (OSTI)

Page 1. A Simple and Provably Good Code for SHA Message Expansion Charanjit S. Jutla IBM TJ Watson Anindya C. Patthak Univ. ...

2012-06-20T23:59:59.000Z

62

Evolution of simple configurations of gravitating gas  

E-Print Network (OSTI)

We considered the dynamics of gravitating gas - a continuous media with peculiar properties. The exact solutions of its Euler equations for simple initial conditions is obtained.

G. P. Pronko

2011-04-23T23:59:59.000Z

63

A simple test for periodic signals in red noise  

E-Print Network (OSTI)

We demonstrate a simple method for testing the significance of peaks in the periodogram of red noise data. The procedure was designed to test for spurious periodicities in X-ray light curves of active galaxies, but can be used quite generally to test for periodic components against a background noise spectrum assumed to have a power law shape. The method provides a simple and fast test of the significance of candidate periodic signals in short, well-sampled time series such as those obtained from XMM-Newton observations of Seyfert galaxies, without the need for Monte Carlo simulations. A full account is made of the number of trials and the uncertainties inherent to the model fitting. Ignoring these subtle effects can lead to substantially overestimated significances. These difficulties motivate us to demand high standards of detection (minimum >99.9 per cent confidence) for periodicities in sources that normally show red noise spectra. The method also provides a simple means to estimate the power spectral index, which may be an interesting parameter itself, regardless of the presence/absence of periodicities.

S. Vaughan

2004-12-30T23:59:59.000Z

64

direct normal | OpenEI  

Open Energy Info (EERE)

normal normal Dataset Summary Description (Abstract): A map depicting model estimates of monthly average daily total radiation using inputs derived from satellite and surface observations of cloud cover, aerosol optical depth, precipitable water vapor, albedo, atmospheric pressure and ozone sampled at a 40km resolution. (Purpose): A visual depiction of solar energy resource for concentrating solar power systems. Source NREL Date Released December 11th, 2003 (10 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords Central America direct normal DNI map NREL solar SWERA UNEP Data application/pdf icon Download Map (pdf, 67.1 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Other or unspecified, see optional comment below

65

Weather Normalization of Reliability Indices  

Science Conference Proceedings (OSTI)

Weather significantly increases variability of reliability indices. This project focuses on exploring statistical correlations between weather parameters and system performance indices using historical utility reliability data and weather data. Using this information, various approaches for normalizing utility performance indices for variability in weather can be developed.

2008-12-22T23:59:59.000Z

66

Decadal Oscillations in a Simple Coupled Model  

Science Conference Proceedings (OSTI)

To study the dynamics that may lead to decadal oscillations in the North Pacific a simple coupled model is developed. The ocean is based on the linear, potential vorticity equation for baroclinic planetary waves. The atmosphere is reduced to a ...

Matthias Mnnich; Mojib Latif; Stephan Venzke; Ernst Maier-Reimer

1998-12-01T23:59:59.000Z

67

Entropy Production in Simple Special Relativistic Fluids  

E-Print Network (OSTI)

It is well known that, in the absence of external forces, simple non-relativistic fluids involve entropy production only through heat conduction and shear viscosity. In this work, it is shown that a number density gradient contributes to the local entropy production of a simple relativistic fluid using special relativistic kinetic theory. Also, the presence of an external field may cause strictly relativistic contributions to the entropy production, a fact not widely recognized. The implications of these effects are thoroughly discussed.

D. Brun-Battistini; A. Sandoval-Villalbazo; A. L. Garcia-Perciante

2013-11-08T23:59:59.000Z

68

Normalization method for video images  

DOE Patents (OSTI)

The present invention relates to a method and apparatus for automatically and adaptively normalizing analog signals representative of video images in object detection systems. Such normalization maximizes the average information content of the video images and, thereby, provides optimal digitized images for object detection and identification. The present invention manipulates two system control signals -- gain control signal and offset control signal -- to convert an analog image signal into a transformed analog image signal, such that the corresponding digitized image contains the maximum amount of information achievable with a conventional object detection system. In some embodiments of the present invention, information content is measured using parameters selected from image entropy, image mean, and image variance.

Donohoe, G.W.; Hush, D.R.

1992-12-31T23:59:59.000Z

69

Normalized information-based divergences  

E-Print Network (OSTI)

This paper is devoted to the mathematical study of some divergences based on the mutual information well-suited to categorical random vectors. These divergences are generalizations of theentropy distanceandinformation distance. Their main characteristic is that they combine a complexity term and the mutual information. We then introduce the notion of (normalized) informationbased divergence, propose several examples and discuss their mathematical properties.

J. -f. Coeurjolly; R. Drouilhet; J. -f. Robineau

2008-01-01T23:59:59.000Z

70

Definition: Direct normal irradiance | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Dictionary.png Direct normal irradiance the amount of solar radiation received per unit area by a surface perpendicular (normal) to the rays...

71

Simple Summer Savings | Department of Energy  

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

Simple Summer Savings Simple Summer Savings Simple Summer Savings May 21, 2012 - 12:26pm Addthis Kristin Swineford Communication Specialist, Weatherization and Intergovernmental Programs It's officially summer! Well, no, it isn't, but we are so close! That said, I began thinking about ways that I plan to save energy and energy costs at my apartment in the upcoming months of unending heat and humidity. One surprising thing I learned while doing a little research is that a full refrigerator naturally optimizes your energy consumption. Apparently it works like this: when you open the door, a stocked refrigerator will hinder the cool air from escaping and subsequently, the more items that take up space, the less air there is to have to cool. I really can't think of a reason not to have a full refrigerator anyway,

72

Fast and simple approach for polygon schematization  

Science Conference Proceedings (OSTI)

The schematization of simple polygons into octilinear polygons is a computational problem arising in the context of electronic CAD systems. In particular, it appears when the generation and propagation of electromagnetic noise into real-world multi-layer ... Keywords: CAD applications, algorithm engineering, computational geometry, experimental analysis, polygon schematization

Serafino Cicerone; Matteo Cermignani

2012-06-01T23:59:59.000Z

73

Simple data-driven modeling of brushes  

Science Conference Proceedings (OSTI)

We present a new and simple data-driven technique for modeling 3D brushes for use in realistic painting programs. Our technique simplifies and accelerates simulation of the constrained dynamics of brushes by using a small lookup table that efficiently ... Keywords: data-driven, deformation, dynamics, example-based, optimization, painting systems, physically based modeling

William Baxter; Naga Govindaraju

2010-02-01T23:59:59.000Z

74

Solid-State Lighting: Simple Modular LED Cost Model  

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

Simple Modular LED Cost Model to someone by E-mail Share Solid-State Lighting: Simple Modular LED Cost Model on Facebook Tweet about Solid-State Lighting: Simple Modular LED Cost...

75

Spectral asymptotics via the semiclassical Birkhoff normal form  

E-Print Network (OSTI)

This article gives a simple treatment of the quantum Birkhoff normal form for semiclassical pseudo-differential operators with smooth coefficients. The normal form is applied to describe the discrete spectrum in a generalised non-degenerate potential well, yielding uniform estimates in the energy $E$. This permits a detailed study of the spectrum in various asymptotic regions of the parameters $(E,\\h)$, and gives improvements and new proofs for many of the results in the field. In the completely resonant case we show that the pseudo-differential operator can be reduced to a Toeplitz operator on a reduced symplectic orbifold. Using this quantum reduction, new spectral asymptotics concerning the fine structure of eigenvalue clusters are proved. In the case of polynomial differential operators, a combinatorial trace formula is obtained.

Laurent Charles; San Vu Ngoc

2006-05-03T23:59:59.000Z

76

Normalized Compression Distance of Multiples  

E-Print Network (OSTI)

Normalized compression distance (NCD) is a parameter-free similarity measure based on compression. The NCD between pairs of objects is not sufficient for all applications. We propose an NCD of finite multisets (multiples) of objacts that is metric and is better for many applications. Previously, attempts to obtain such an NCD failed. We use the theoretical notion of Kolmogorov complexity that for practical purposes is approximated from above by the length of the compressed version of the file involved, using a real-world compression program. We applied the new NCD for multiples to retinal progenitor cell questions that were earlier treated with the pairwise NCD. Here we get significantly better results. We also applied the NCD for multiples to synthetic time sequence data. The preliminary results are as good as nearest neighbor Euclidean classifier.

Cohen, Andrew R

2012-01-01T23:59:59.000Z

77

Modeling Windows in Energy Plus with Simple Performance Indices  

E-Print Network (OSTI)

Modeling Windows in Energy Plus with Simple Performanceof California. Modeling Windows in Energy Plus with SimpleE+), cannot use standard window performance indices (U,

Arasteh, Dariush

2010-01-01T23:59:59.000Z

78

Long-Term Trends in Air Temperature Distribution and Extremes, Growing Degree?Days, and Spring and Fall Frosts for Climate Impact Assessments on Agricultural Practices in Nebraska  

Science Conference Proceedings (OSTI)

Air temperature influences agricultural practices and production outcomes, making detailed quantifications of temperature changes necessary for potential positive and negative effects on agricultural management practices to be exploited or ...

Kari E. Skaggs; Suat Irmak

2012-11-01T23:59:59.000Z

79

Major Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Major Normal Fault Major Normal Fault Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Major Normal Fault Dictionary.png Major Normal Fault: Normal faults are structures in which the hanging wall is down dropped along the fault plane relative to the foot wall. They are the predominant type of structure in extensional tectonic environments, but are commonly encountered in a number of geologic settings. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault Fault Intersection Accommodation Zone Displacement Transfer Zone Pull-Apart in Strike-Slip Fault Zone

80

Simple Power, LP | Open Energy Information  

Open Energy Info (EERE)

Power, LP Power, LP Jump to: navigation, search Name Simple Power, LP Place Texas Utility Id 56257 Utility Location Yes Ownership R NERC Location TRE ISO Ercot Yes Activity Retail Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates Residential: $0.1110/kWh Commercial: $0.1290/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=Simple_Power,_LP&oldid=411522" Categories: EIA Utility Companies and Aliases Utility Companies Organizations

Note: This page contains sample records for the topic "degree-day normals simple" 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

Y scaling in a simple quark model  

SciTech Connect

A simple quark model is used to define a nuclear pair model, that is, two composite hadrons interacting only through quark interchange and bound in an overall potential. An equivalent hadron model is developed, displaying an effective hadron-hadron interaction which is strongly repulsive. We compare the effective hadron model results with the exact quark model observables in the kinematic region of large momentum transfer, small energy transfer. The nucleon response function in this y-scaling region is, within the traditional framework, sensitive to the nucleon momentum distribution at large momentum. We find a surprisingly small effect of hadron substructure. Furthermore, we find in our model that a simple parametrization of modified hadron size in the bound state, motivated by the bound quark momentum distribution, is not a useful way to correlate different observables.

Kumano, S.; Moniz, E.J.

1988-05-01T23:59:59.000Z

82

Regression benchmarking with simple middleware benchmarks  

E-Print Network (OSTI)

The paper introduces the concept of regression benchmarking as a variant of regression testing focused at detecting performance regressions. Applying the regression benchmarking in the area of middleware development, the paper explains how regression benchmarking differs from middleware benchmarking in general. On a real-world example of TAO, the paper shows why the existing benchmarks do not give results sufficient for regression benchmarking, and proposes techniques for detecting performance regressions using simple benchmarks. 1.

Lubomr Bulej; Tom Kalibera; Petr T?ma

2004-01-01T23:59:59.000Z

83

Simple Cosmological Model with Relativistic Gas  

E-Print Network (OSTI)

We construct simple and useful approximation for the relativistic gas of massive particles. The equation of state is given by an elementary function and admits analytic solution of the Friedmann equation, including more complex cases when the relativistic gas of massive particles is considered together with radiation or with dominating cosmological constant. The model of relativistic gas may be interesting for the description of primordial Universe, especially as a candidate for the role of a Dark Matter.

Guilherme de Berredo-Peixoto; Ilya L. Shapiro; Flavia Sobreira

2004-12-11T23:59:59.000Z

84

APPLYING SIMPLE TECHNOLOGY ACCOMPLISHES VISUAL INSPECTION CHALLENGES  

SciTech Connect

This paper discusses the successful implementation of simple video technologies at the Savannah River Site (SRS) to perform complex visual inspection, monitoring, and surveillance tasks. Because SRS facilities are similar to those of an industrial plant, the environmental and accessibility considerations for remote viewing are the primary determining factors in the selection of technology. The constraints and challenges associated with remote viewing are discussed, and examples of applications are given.

Robinson, C

2007-07-21T23:59:59.000Z

85

SLURM: Simple Linux Utility for Resource Management  

SciTech Connect

Simple Linux Utility for Resource Management (SLURM) is an open source, fault-tolerant, and highly scalable cluster management and job scheduling system for Linux clusters of thousands of nodes. Components include machine status, partition management, job management, scheduling and stream copy modules. The design also includes a scalable, general-purpose communication infrastructure. This paper presents a overview of the SLURM architecture and functionality.

Jette, M; Dunlap, C; Garlick, J; Grondona, M

2002-07-08T23:59:59.000Z

86

Quantum irreversible process in a simple model  

E-Print Network (OSTI)

We present a very simple model of a quantum system in which an irreversible process happens. The model can be used as an example of a quantum dynamical problem in introductory courses of Quantum Mechanics or as the introduction to courses on Quantum Irreversible Processes. In both cases it will help students to build some intuition on dynamical behaviour of quantum systems consisting of many degrees of freedom beyond perturbation theory and classical thermodynamics.

Wjcik, Krzysztof Piotr

2012-01-01T23:59:59.000Z

87

A Comparison of the Bounded Derivative and the Normal-Mode Initialization Methods Using Real Data  

Science Conference Proceedings (OSTI)

Application of the bounded-derivative and normal-mode methods to a simple linear barotropic model at a typical middle latitude shows that the two methods lead to identical constraints up to a certain degree of approximation. Beyond this accuracy ...

F. H. M. Semazzi; I. M. Navon

1986-11-01T23:59:59.000Z

88

A Harmonic Approach for Calculating Daily Temperature Normals Constrained by Homogenized Monthly Temperature Normals  

Science Conference Proceedings (OSTI)

NOAA released the new 19812010 climate normals in July 2011. These included monthly and daily normals of minimum and maximum temperature. Monthly normals were computed from monthly temperature values that were corrected for biases (i.e., ...

Anthony Arguez; Scott Applequist

2013-07-01T23:59:59.000Z

89

Simple variational approaches to quantum wells  

E-Print Network (OSTI)

We discuss two simple variational approaches to quantum wells. The trial harmonic functions analyzed in an earlier paper give reasonable results for all well depths and are particularly suitable for deep wells. On the other hand, the exponential functions proposed here are preferable for shallow wells. We compare the shallow-well expansions for both kind of functions and show that they do not exhibit the cubic term appearing in the exact series. It is also shown that the deep-well expansion for the harmonic functions agree with the first terms of perturbation theory.

Francisco M. Fernndez

2012-04-03T23:59:59.000Z

90

Drift estimation from a simple field theory  

SciTech Connect

Given the outcome of a Wiener process, what can be said about the drift and diffusion coefficients? If the process is stationary, these coefficients are related to the mean and variance of the position displacements distribution. However, if either drift or diffusion are time-dependent, very little can be said unless some assumption about that dependency is made. In Bayesian statistics, this should be translated into some specific prior probability. We use Bayes rule to estimate these coefficients from a single trajectory. This defines a simple, and analytically tractable, field theory.

Mendes, F. M.; Figueiredo, A. [Instituto de Fisica, Universidade de Brasilia, CP: 04455, 70919-970-Brasilia (Brazil)

2008-11-06T23:59:59.000Z

91

Simple model of the greenhouse effect  

SciTech Connect

This report describes a simple model that breaks new ground by attempting to encompass the whole cause and effect of the greenhouse effect caused by the emission of carbon dioxide. The model includes a carbon dioxide emissions module, a carbon cycle module, and an atmospheric temperature module. Each of the component modules is considerably less elaborate than the current state-of-the-art modules. In addition to the three modules, the simple model simulates the impact of climate change on the production of food and simulates the impact of both expensive food and expensive energy on world GNP. The report presents the detailed equations of the model and sample results. A key assumption is that the world GNP will increase by about a factor of 12 in the next 200 years (an average rate of about 1% per year). If the world GNP increases at this rate, by 2000 the world must begin a major shift to solar energy or nuclear power if the carbon dioxide in the atmosphere is to be kept below 600 ppM. 19 refs., 16 figs., 4 tabs.

Reister, D.B.

1985-06-01T23:59:59.000Z

92

Current reservoirs in the simple exclusion process  

E-Print Network (OSTI)

We consider the symmetric simple exclusion process in the interval $[-N,N]$ with additional birth and death processes respectively on $(N-K,N]$, $K>0$, and $[-N,-N+K)$. The exclusion is speeded up by a factor $N^2$, births and deaths by a factor $N$. Assuming propagation of chaos (a property proved in a companion paper "Truncated correlations in the stirring process with births and deaths") we prove convergence in the limit $N\\to \\infty$ to the linear heat equation with Dirichlet condition on the boundaries; the boundary conditions however are not known a priori, they are obtained by solving a non linear equation. The model simulates mass transport with current reservoirs at the boundaries and the Fourier law is proved to hold.

Anna De Masi; Errico Presutti; Dimitrios Tsagkarogiannis; Maria Eulalia Vares

2011-04-18T23:59:59.000Z

93

Angular dependence of a simple accident dosimeter  

SciTech Connect

A simple dosimeter made of a sulfur tablet, bare and cadmium covered indium foils and a cadmium covered copper foil has been modeled using MCNP5. Studies of the model without phantom or other confounding factors have shown that the cross sections and fluence-to-dose factors generated by the Monte Carlo method agree with those generated by analytic expressions for the high energy component. The threshold cross sections for the detectors on a phantom were calculated. The resulting doses assigned agree well with exposures made to three critical assemblies. In this study the angular dependence on a phantom is studied and compared with measurements taken on the GODIVA reactor. The dosimeter positions on the phantom are facing the source, on the back and the side. In previous papers the modeling of a simple dosimeter made of a sulfur tablet, bare and cadmium covered indium foils and a cadmium covered copper foil has been modeled using MCNP5. The conclusion made was that most of the neutron dose from criticality assemblies results from the high energy neutron fluences determined by the sulfur and indium detectors. The results using doses measured from the GODIVA, SHEBA, and bare and lead shielded SILENE reactors confirmed this. The angular dependence of an accident dosemeter is of interest in evaluating the exposure of personnel. To investigate this effect accident dosemeters were placed on a phantom and exposed to the GODIVA reactor at phantom orientations of 0{sup o}, 45{sup o}, 90{sup o}, 135{sup o}, and 180{sup o} to the assembly center line.

Devine, R. T. (Robert T.); Romero, L. L. (Leonard L.); Olsher, R. H. (Richard H.)

2004-01-01T23:59:59.000Z

94

Classification of linearly compact simple Jordan and generalized Poisson superalgebras  

E-Print Network (OSTI)

We classify all linearly compact simple Jordan superalgebras over an algebraically closed field of characteristic zero. As a corollary, we deduce the classification of all linearly compact unital simple generalized Poisson superalgebras.

Nicoletta Cantarini; Victor G. Kac; To Ernest; Borisovich Vinberg

2006-01-01T23:59:59.000Z

95

A simple methodology for observing fracture process of nano ...  

Science Conference Proceedings (OSTI)

A simple methodology for observing mechanical properties of nanocomposite Part 1: interfacial properties in an Epoxy Clay Nanocomposites. ...

96

Hot Electron Photovoltaics Using Low Cost Materials and Simple ...  

Hot Electron Photovoltaics Using Low Cost Materials and Simple Cell Design Lawrence Berkeley National Laboratory. Contact LBL About This Technology

97

A Symplectic Method to Generate Multivariate Normal Distributions  

E-Print Network (OSTI)

The AMAS group at the Paul Scherrer Institute developed an object oriented library for high performance simulation of high intensity ion beam transport with space charge. Such particle-in-cell (PIC) simulations require a method to generate multivariate particle distributions as starting conditions. In a preceeding publications it has been shown that the generators of symplectic transformations in two dimensions are a subset of the real Dirac matrices (RDMs) and that few symplectic transformations are required to transform a quadratic Hamiltonian into diagonal form. Here we argue that the use of RDMs is well suited for the generation of multivariate normal distributions with arbitrary covariances. A direct and simple argument supporting this claim is that this is the "natural" way how such distributions are formed. The transport of charged particle beams may serve as an example: An uncorrelated gaussian distribution of particles starting at some initial position of the accelerator is subject to linear deformat...

Baumgarten, Christian

2012-01-01T23:59:59.000Z

98

Making Forecasts and Weather Normalization Work Together  

Science Conference Proceedings (OSTI)

Electric utility industry restructuring has changed the consistency between weather-normalized sales and energy forecasts. This Technology Review discusses the feasibility of integrating weather normalization and forecasting processes, and addresses whether the conflicting goal of obtaining greater consistency and accuracy with fewer staff resources can be met with more integrated approaches.

2000-09-11T23:59:59.000Z

99

Asymptotically almost all -terms are strongly normalizing  

E-Print Network (OSTI)

Asymptotically almost all -terms are strongly normalizing Ren´e David, Christophe Raffalli) properties of random -terms. Our main results show that asymptotically, almost all terms are strongly normalizing and that any fixed closed term almost never appears in a random term. Surprisingly, in combinatory

Paris-Sud XI, Université de

100

Asymptotically almost all -terms are strongly normalizing  

E-Print Network (OSTI)

Asymptotically almost all -terms are strongly normalizing Ren´e David, Christophe Raffalli) properties of random -terms. Our main results are that asymptotically all the terms are strongly normalizing and that any fixed closed term almost never appears in a random term. Surprisingly, in combinatory logic (the

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "degree-day normals simple" 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

THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION  

E-Print Network (OSTI)

The price of crude oil in the U.S. never exceeded $40 per barrel until mid-2004. By 2006 it reached $70, and in July 2008 it peaked at $145. By late 2008 it had plummeted to about $30 before increasing to $110 in 2011. Are speculators at least partly to blame for these sharp price changes? We clarify the effects of speculators on commodity prices. We focus on crude oil, but our approach can be applied to other commodities. We explain the meaning of oil price speculation, how it can occur, and how it relates to investments in oil reserves, inventories, or derivatives (such as futures contracts). Turning to the data, we calculate counterfactual prices that would have occurred from 1999 to 2012 in the absence of speculation. Our framework is based on a simple and transparent model of supply and demand in the cash and storage markets for a commodity. It lets us determine whether speculation is consistent with data on production, consumption, inventory changes, and convenience yields given reasonable elasticity assumptions. We show speculation had little, if any, effect on prices and volatility.

Christopher R. Knittel; Robert S. Pindyck

2013-01-01T23:59:59.000Z

102

Simple Low-Frequency Beam Pickup  

SciTech Connect

Detection of the field induced by a beam outside of the beam pipe can be used as a beam diagnostic. Wires placed in longitudinal slots in the outside wall of the beam pipe can be used as a beam pickup. This has a very small beam-coupling impedance and avoids complications of having a feedthrough. The signal can be reasonably high at low frequencies. We present a field waveform at the outer side of a beam pipe, obtained as a result of calculations and measurements. We calculate the beam-coupling impedance due to a long longitudinal slot in the resistive wall and the signal induced in a wire placed in such a slot and shielded by a thin screen from the beam. These results should be relevant for impedance calculations of the slot in an antechamber and for slots in the PEP-II distributed ion pump screens. The design of the low-frequency beam position monitor is very simple. It can be used in storage rings, synchrotron light sources, and free electron lasers, like LINAC coherent light source.

Novokhatski, A.; Heifets, S.; /SLAC; Aleksandrov, A.; /Oak Ridge

2011-10-12T23:59:59.000Z

103

Simple Waves in Ideal Radiation Hydrodynamics  

E-Print Network (OSTI)

In the dynamic diffusion limit of radiation hydrodynamics, advection dominates diffusion; the latter primarily affects small scales and has negligible impact on the large scale flow. The radiation can thus be accurately regarded as an ideal fluid, i.e., radiative diffusion can be neglected along with other forms of dissipation. This viewpoint is applied here to an analysis of simple waves in an ideal radiating fluid. It is shown that much of the hydrodynamic analysis carries over by simply replacing the material sound speed, pressure and index with the values appropriate for a radiating fluid. A complete analysis is performed for a centered rarefaction wave, and expressions are provided for the Riemann invariants and characteristic curves of the one-dimensional system of equations. The analytical solution is checked for consistency against a finite difference numerical integration, and the validity of neglecting the diffusion operator is demonstrated. An interesting physical result is that for a material component with a large number of internal degrees of freedom and an internal energy greater than that of the radiation, the sound speed increases as the fluid is rarefied. These solutions are an excellent test for radiation hydrodynamic codes operating in the dynamic diffusion regime. The general approach may be useful in the development of Godunov numerical schemes for radiation hydrodynamics.

Bryan M. Johnson

2008-11-24T23:59:59.000Z

104

A Simple Explanation for Taxon Abundance Patterns  

E-Print Network (OSTI)

For taxonomic levels higher than species, the abundance distributions of number of subtaxa per taxon tend to approximate power laws, but often show strong deviationns from such a law. Previously, these deviations were attributed to finite-time effects in a continuous time branching process at the generic level. Instead, we describe here a simple discrete branching process which generates the observed distributions and find that the distribution's deviation from power-law form is not caused by disequilibration, but rather that it is time-independent and determined by the evolutionary properties of the taxa of interest. Our model predicts-with no free parameters-the rank-frequency distribution of number of families in fossil marine animal orders obtained from the fossil record. We find that near power-law distributions are statistically almost inevitable for taxa higher than species. The branching model also sheds light on species abundance patterns, as well as on links between evolutionary processes, self-orga...

Chu, J; Chu, Johan; Adami, Christoph

1999-01-01T23:59:59.000Z

105

Definition: Direct normal irradiance | Open Energy Information  

Open Energy Info (EERE)

normal irradiance normal irradiance (Redirected from Definition:DNI) Jump to: navigation, search Dictionary.png Direct normal irradiance the amount of solar radiation received per unit area by a surface perpendicular (normal) to the rays that come in a straight line from the direction of the sun at its current position in the sky.[1] Also Known As DNI Related Terms Solar radiation, Irradiance, Concentrating solar power, Global horizontal irradiance References ↑ http://www.3tier.com/en/support/glossary/#dni Retrie LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ved from "http://en.openei.org/w/index.php?title=Definition:Direct_normal_irradiance&oldid=423379" Category: Definitions What links here Related changes Special pages Printable version Permanent link

106

A SIMPLE LAW OF STAR FORMATION  

SciTech Connect

We show that supersonic MHD turbulence yields a star formation rate (SFR) as low as observed in molecular clouds, for characteristic values of the free-fall time divided by the dynamical time, t{sub ff}/t{sub dyn}, the Alfvenic Mach number, M{sub a}, and the sonic Mach number, M{sub s}. Using a very large set of deep adaptive-mesh-refinement simulations, we quantify the dependence of the SFR per free-fall time, {epsilon}{sub ff}, on the above parameters. Our main results are (1) that {epsilon}{sub ff} decreases exponentially with increasing t{sub ff}/t{sub dyn}, but is insensitive to changes in M{sub s}, for constant values of t{sub ff}/t{sub dyn} and M{sub a}. (2) Decreasing values of M{sub a} (stronger magnetic fields) reduce {epsilon}{sub ff}, but only to a point, beyond which {epsilon}{sub ff} increases with a further decrease of M{sub a}. (3) For values of M{sub a} characteristic of star-forming regions, {epsilon}{sub ff} varies with M{sub a} by less than a factor of two. We propose a simple star formation law, based on the empirical fit to the minimum {epsilon}{sub ff}, and depending only on t{sub ff}/t{sub dyn}: {epsilon}{sub ff} Almost-Equal-To {epsilon}{sub wind}exp (- 1.6 t{sub ff}/t{sub dyn}). Because it only depends on the mean gas density and rms velocity, this law is straightforward to implement in simulations and analytical models of galaxy formation and evolution.

Padoan, Paolo [ICREA and ICC, University of Barcelona, Marti i Franques 1, E-08028 Barcelona (Spain); Haugbolle, Troels [Centre for Star and Planet Formation, University of Copenhagen, Oestervoldgade 5-7., DK-1350, Copenhagen (Denmark); Nordlund, Ake, E-mail: ppadoan@icc.ub.edu, E-mail: haugboel@nbi.dk, E-mail: aake@nbi.dk [Centre for Star and Planet Formation and Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100, Copenhagen (Denmark)

2012-11-10T23:59:59.000Z

107

Recent work on normal and superconducting inductive energy storage switching at the Efremov Institute, Leningrad, USSR  

DOE Green Energy (OSTI)

Various forms of switches for both normal and superconducting inductive energy storage have been devised and developed at NIIEFA. At the present time, however, a major portion of the efforts of the Institute in these fields is being applied to the design and construction of coils for tokamak ''T-10M.'' The superconducting toroidal field coils (the design of which is still uncertain) will be switched by simple switches made of Nb-Ti ribbon. The normal coils for the poloidal field will be switched by a simple metal contactor breaker. As the ''T-10M'' project proceeds, perhaps some of the innovative inductive storage and switching work can continue and when ''T-10M'' is complete, the basic research can resume at full level.

Machalek, M.D.

1977-01-01T23:59:59.000Z

108

NORMAL EMISSION PHOTOELECTRON DIFFRACTION STUDIES AT SSRL  

E-Print Network (OSTI)

DIFFRACTION STUDIES AT SSRL S. D. Kevan June 1980 TWO-WEEKDIFFRACTION STUDIES AT SSRL S.D. Kevan Materials andOur group has worked at SSRL using the normal emission

Kevan, S.D.

2013-01-01T23:59:59.000Z

109

Perfect Implementation of Normal-Form Mechanisms  

E-Print Network (OSTI)

Privacy and trust affect our strategic thinking, yet they have not been precisely modeled in mechanism design. In settings of incomplete information, traditional implementations of a normal-form mechanism ---by disregarding ...

Izmalkov, Sergei

110

Nonlinear Normal Mode Initialization with Physics  

Science Conference Proceedings (OSTI)

The nonlinear normal mode initialization with physics was applied for analyses in FGGE IIIb data of the European Center for Medium Range Weather Forecasting (ECMWF). A convergence of the iteration in the initialization was attained by modifying ...

Takeo Kitade

1983-11-01T23:59:59.000Z

111

Vertical Normal Mode Transforms: Theory and Application  

Science Conference Proceedings (OSTI)

The separation of the vertical structure of the, solutions of the primitive (hydrostatic) meteorological equations is formalized as a vertical normal-mode transform. The transform is implemented for arbitrary static stability profiles by the ...

Scott R. Fulton; Wayne H. Schubert

1985-04-01T23:59:59.000Z

112

Effects of Electric and Magnetic Fields on Simple Plants  

Science Conference Proceedings (OSTI)

... than 40 years ago suggested that simple plants grasses, beans, and corn- exhibited varying effects in simulated geomagnetic fields and in electric fields.

113

Stochastic binary problems with simple penalties for capacity ...  

E-Print Network (OSTI)

Mar 24, 2009 ... Abstract: This paper studies stochastic programs with first-stage binary variables and capacity constraints, using simple penalties for capacities...

114

Stochastic binary problems with simple penalties for capacity ...  

E-Print Network (OSTI)

capacity constraints, using simple penalties for capacities violations. In particular, we take a closer look at the knapsack problem with weights and capacity...

115

ARM - Measurement - Shortwave broadband direct normal irradiance  

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

normal irradiance normal irradiance ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Shortwave broadband direct normal irradiance The rate at which radiant energy in broad bands of wavelengths shorter than approximately 4{mu}m, that comes directly from the Sun without being scattered or absorbed in the atmosphere, passes through a unit area perpendicular to the direction from the Sun. Categories Radiometric Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments

116

direct normal irradiance | OpenEI  

Open Energy Info (EERE)

normal irradiance normal irradiance Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. Source NREL Date Released July 31st, 2006 (8 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords direct normal irradiance DNI GEF GHI GIS global horizontal irradiance insolation latitutde tilt irradiance NASA NREL South America SWERA TILT UNEP Data application/zip icon Download Shapefile and Cell Maps (zip, 13.9 MiB) text/csv icon Download Data (csv, 3.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage

117

Handbook of normal frames and coordinates  

E-Print Network (OSTI)

The main subject of the book is an up-to-date and in-depth survey of the theory of normal frames and coordinates in differential geometry. The book can be used as a reference manual, review of the existing results and introduction to some new ideas and developments. In the book can be found practically all existing essential results and methods concerning normal frames and coordinates. Most of the results are represented in full detail with full, in some cases new, proofs. All classical results are expanded and generalized in various directions. Theorems of existence, uniqueness and, possibly, holonomicity of the normal frames and coordinates are proved; mostly, the proofs are constructive and some their parts can be used independently for other tasks. Besides published results, their extensions and generalizations, the book contains completely new results which appear for the first time.

Bozhidar Z. Iliev

2006-10-01T23:59:59.000Z

118

Projecting Normals in a Nonstationary Climate  

Science Conference Proceedings (OSTI)

Climate normals are statistical estimates of present and/or near-future climate means for such quantities as seasonal temperature or precipitation. In a changing climate, simply averaging a large number of previous years of data may not be the ...

D. S. Wilks

2013-02-01T23:59:59.000Z

119

Target Dependent Score Normalization Techniques and . . .  

E-Print Network (OSTI)

Score normalization methods in biometric verification, which encompass the more traditional user-dependent decision thresholding techniques, are reviewed from a test hypotheses point of view. These are classified into test dependent and target dependent methods. The focus of the paper is on target dependent methods, which are further classified into impostor-centric, target-centric and target-impostor. These are applied to an on-line signature verification system on signature data from SVC 2004. In particular, a target-centric technique based on a variant of the cross-validation procedure provides the best relative performance improvement both for skilled (19%) and random forgeries (53%) as compared to the raw verification performance without score normalization (7.14% EER and 1.06% EER for skilled and random forgeries respectively).

J. Fierrez-Aguilar; J. Ortega-Garcia; J. Gonzalez-Rodriguez

2005-01-01T23:59:59.000Z

120

What Is the New Normal Unemployment Rate?  

E-Print Network (OSTI)

Recent labor markets developments, including mismatches in the skills of workers and jobs, extended unemployment benefits, and very high rates of long-term joblessness, may be impeding the return to normal unemployment rates of around 5%. An examination of alternative measures of labor market conditions suggests that the normal unemployment rate may have risen as much as 1.7 percentage points to about 6.7%, although much of this increase is likely to prove temporary. Even with such an increase, sizable labor market slack is expected to persist for years. In the past, the U.S. labor market has proven to be very flexible and recessions have not usually been followed by long-lasting increases in the unemployment rate. But, in the wake of the most recent recession, many economists are concerned that developments such as mismatches in the skills of workers and jobs, extended unemployment benefits, and a rise in long-term joblessness may have raised the normal or natural rate of unemployment above the 5 % level that was thought to be typical before the downturn. Indeed, a few economists have gone so far as to argue that the rise in the unemployment rate to its current level of 9 % primarily reflects an increase in the natural rate, implying there is little slack in labor markets and therefore little downward pressure on inflation. This Economic Letter

Weidner; John C. Williams

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Microscopic Dynamics in Non-Simple Liquid Metals  

Science Conference Proceedings (OSTI)

Our recent inelastic X-ray scattering (IXS) experiments on several non-simple liquid metals have revealed characteristic common features in the collective dynamics. 1) Clear indications for propagating phonon modes were found as in simple liquid metals as liquid alkalis. 2) They exhibit a positive dispersion of about 20 % (except in liquid Ge) again as in liquid simple metals. 3) A very short time (sub-picosecond) retaining of the nearest-neighbor correlation is visualized by a Gaussian component in the quasielastic line shape, which may be related to short living covalent species. In this paper, we review the IXS experiment on liquid Si as a typical non-simple liquid metal, and discuss its dynamic properties in connection with results of an ab initio molecular dynamics simulation.

Hosokawa, S.; Pilgrim, W.-C. [Institut fuer Physikalische-, Kern-, und Makromolekulare Chemie, Philipps Universitaet Marburg, D-35032 Marburg (Germany)

2004-04-30T23:59:59.000Z

122

Simple Nonparametric Techniques for Exploring Changing Probability Distributions of Weather  

Science Conference Proceedings (OSTI)

Anthropogenic influences are expected to cause the probability distribution of weather variables to change in nontrivial ways. This study presents simple nonparametric methods for exploring and comparing differences in pairs of probability ...

Christopher A. T. Ferro; Abdelwaheb Hannachi; David B. Stephenson

2005-11-01T23:59:59.000Z

123

Multiphoton Laser Processing: A Unique and Simple Way to Enter...  

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

Multiphoton Laser Processing: A Unique and Simple Way to Enter the Nano-Platform Speaker(s): Andreas Ostendorf Date: January 27, 2006 - 12:00pm Location: Bldg. 90 Multiphoton laser...

124

Simple Memory Machine Models for GPUs Koji Nakano  

E-Print Network (OSTI)

Simple Memory Machine Models for GPUs Koji Nakano Department of Information Engineering Hiroshima University Kagamiyama 1-4-1, Higashi Hiroshima, 739-8527 Japan Email: nakano@cs.hiroshima-u.ac.jp Abstract

Moreno Maza, Marc

125

A Simple Equation for Regional Climate Change and Associated Uncertainty  

Science Conference Proceedings (OSTI)

Simple equations are developed to express regional climate changes for the twenty-first century and associated uncertainty in terms of the global temperature change (GTC) without a dependence on the underlying emission pathways. The equations are ...

Filippo Giorgi

2008-04-01T23:59:59.000Z

126

Feedbacks in a Simple Prognostic Tropical Climate Model  

Science Conference Proceedings (OSTI)

A simple four-cell model of the tropical atmosphere in equilibrium with its boundaries is introduced, which can support a variable diabatic circulation and prognostic temperature and humidity profiles. The model is used to predict atmospheric ...

Steven C. Sherwood

1999-07-01T23:59:59.000Z

127

A simple estimator for the distribution of random coefficients  

E-Print Network (OSTI)

We propose a simple mixtures estimator for recovering the joint distribution of parameter heterogeneity in economic models, such as the random coefficients logit. The estimator is based on linear regression subject to ...

Ryan, Stephen

128

A Simple Model of Stratospheric Dynamics Including Solar Variability  

Science Conference Proceedings (OSTI)

A simple dynamic model, truncated from the stratospheric wavezonal flow interaction Holton and Mass model, is introduced and studied. This model consists of three ordinary differential equations controlled by two parameters: the initial ...

Alexander Ruzmaikin; John Lawrence; Cristina Cadavid

2003-05-01T23:59:59.000Z

129

A Simple Parameterization of Turbulent Tidal Mixing near Supercritical Topography  

Science Conference Proceedings (OSTI)

A simple parameterization for tidal dissipation near supercritical topography, designed to be applied at deep midocean ridges, is presented. In this parameterization, radiation of internal tides is quantified using a linear knife-edge model. ...

Jody M. Klymak; Sonya Legg; Robert Pinkel

2010-09-01T23:59:59.000Z

130

A Simple Test of the Initialization of Gravity Modes  

Science Conference Proceedings (OSTI)

The initialization schemes of Machenhauer (1977), Baer and Tribbia (1977), and one requiring the initial second time derivatives of gravity modes to be zero are tested by application to a simple differential equation, which partially simulates ...

Bradley A. Ballish

1981-06-01T23:59:59.000Z

131

Configuring Networks and Devices with Simple Network Management Protocol (SNMP)  

Science Conference Proceedings (OSTI)

This document is written for readers interested in the Internet Standard Management Framework and its protocol, the Simple Network Management Protocol (SNMP). In particular, it offers guidance in the effective use of SNMP for configuration management. ...

M. MacFaden; D. Partain; J. Saperia; W. Tackabury

2003-04-01T23:59:59.000Z

132

A Simple Technique for Islanding Detection with Negligible Nondetection Zone  

E-Print Network (OSTI)

Although active islanding detection techniques have smaller nondetection zones than passive techniques, active methods could degrade the system power quality and are not as simple and easy to implement as passive methods. ...

Kirtley Jr, James L.

133

Interpretation of Simulated Global Warming Using a Simple Model  

Science Conference Proceedings (OSTI)

A simple energy balance model with two parameters, an effective heat capacity and an effective climate sensitivity, is used to interpret six GCM simulations of greenhouse gasinduced global warming. By allowing the parameters to vary in time, the ...

I. G. Watterson

2000-01-01T23:59:59.000Z

134

A Simple Positive Definite Advection Scheme with Small Implicit Diffusion  

Science Conference Proceedings (OSTI)

The development of negative values for positive definite scalars in the solution of the advection equation is an important difficulty in numerical modeling. This paper proposes a new positively definite advection scheme which has a simple form, ...

Piotr K. Smolarkiewicz

1983-03-01T23:59:59.000Z

135

A Simple Model of Droplet Spectral Evolution during Turbulent Mixing  

Science Conference Proceedings (OSTI)

The mixing of cloudy, saturated air with cloud-free, subsaturated air is examined with a simple one-dimensional model of the mixing process. The model incorporates (i) a one-dimensional parameterization of turbulent deformation, (ii) molecular ...

Jrgen B. Jensen; Marcia B. Baker

1989-09-01T23:59:59.000Z

136

A Simple Theory for the Fate of Buoyant Coastal Discharges  

Science Conference Proceedings (OSTI)

A simple theory that predicts the vertical structure and offshore spreading of a localized buoyant inflow onto a continental shelf is formulated. The theory is based on two competing mechanisms that move the buoyant fluid offshore: 1) the radial ...

Alexander E. Yankovsky; David C. Chapman

1997-07-01T23:59:59.000Z

137

West Coast (PADD 5) Exports of Normal Butane-Butylene ...  

U.S. Energy Information Administration (EIA)

Normal Butane/Butylene Exports; Normal Butane/Butylene Supply and Disposition; West Coast (PADD 5) Exports of Crude Oil and Petroleum Products ...

138

Rocky Mountain (PADD 4) Product Supplied of Normal Butane ...  

U.S. Energy Information Administration (EIA)

Normal Butane/Butylene Supply and Disposition; Product Supplied for Normal Butane/Butylene ; Rocky Mountain (PADD 4) Product Supplied for Crude Oil ...

139

Characterization of Ice Crystals in Clouds by Simple Mathematical Expressions Based on Successive Modification of Simple Shapes  

Science Conference Proceedings (OSTI)

The technique based on the concept of successive modification of simple shapes using elementary mathematical functions to represent the shape and size of ice crystals in clouds is discussed. Two hypothetical samples of ice crystals, a single-...

Pao K. Wang

1997-08-01T23:59:59.000Z

140

Normal Modes of Black Hole Accretion Disks  

SciTech Connect

This paper studies the hydrodynamical problem of normal modes of small adiabatic oscillations of relativistic barotropic thin accretion disks around black holes (and compact weakly magnetic neutron stars). Employing WKB techniques, we obtain the eigen frequencies and eigenfunctions of the modes for different values of the mass and angular momentum of the central black hole. We discuss the properties of the various types of modes and examine the role of viscosity, as it appears to render some of the modes unstable to rapid growth.

Ortega-Rodriguez, Manuel; /Stanford U., Appl. Phys. Dept. /Costa Rica U.; Silbergleit, Alexander S.; /Stanford U., HEPL; Wagoner, Robert V.; /Stanford U., Phys. Dept.

2006-11-07T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

A signal-to-noise approach to score normalization  

Science Conference Proceedings (OSTI)

Score normalization is indispensable in distributed retrieval and fusion or meta-search where merging of result-lists is required. Distributional approaches to score normalization with reference to relevance, such as binary mixture models like the normal-exponential, ... Keywords: Zipf's law, distributed retrieval, filtering, fusion, meta-search, power-law, query length distribution, query model, resource selection, score distribution, score normalization

Avi Arampatzis; Jaap Kamps

2009-11-01T23:59:59.000Z

142

Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program |  

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

Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program < Back Eligibility Commercial Industrial Savings Category Home Weatherization Commercial Weatherization Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Construction Design & Remodeling Manufacturing Sealing Your Home Windows, Doors, & Skylights Ventilation Heat Pumps Commercial Lighting Lighting Insulation Maximum Rebate Up to 100,000 per site per year. Program Info Funding Source Conservation Program Funding Charge State Oregon Program Type Utility Rebate Program Rebate Amount A/C or Heat Pumps: $25-$100/ton Economizer Control Addition: $75/ton Air-Side Economizer Repair: $250 Evaporative Coolers: $100-$300/ton

143

Simple Maintenance Saves Costly Furnace Repair/Replacement | Department of  

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

Simple Maintenance Saves Costly Furnace Repair/Replacement Simple Maintenance Saves Costly Furnace Repair/Replacement Simple Maintenance Saves Costly Furnace Repair/Replacement January 6, 2010 - 8:26am Addthis Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory For the past few weeks, my forced-air gas furnace has been on the fritz. I blame this on the fact that I haven't been as diligent as I should have been with regular furnace maintenance, which includes: Checking the condition of the vent connection pipe and chimney Checking the physical integrity of the heat exchanger Adjusting the controls to provide optimum water and air temperature settings for both efficiency and comfort Having a technician perform a combustion-efficiency test Checking the combustion chamber for cracks. Testing for carbon monoxide

144

Modeling Windows in Energy Plus with Simple Performance Indices  

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

Modeling Windows in Energy Plus with Simple Performance Indices Modeling Windows in Energy Plus with Simple Performance Indices Title Modeling Windows in Energy Plus with Simple Performance Indices Publication Type Report LBNL Report Number LBNL-2804E Year of Publication 2009 Authors Arasteh, Dariush K., Christian Kohler, and Brent T. Griffith Date Published 10/2009 Call Number LBNL-2804E Abstract The paper describes the development of a model specification for performance monitoring systems for commercial buildings. The specification focuses on four key aspects of performance monitoring: performance metrics measurement system requirements data acquisition and archiving data visualization and reporting The aim is to assist building owners in specifying the extensions to their control systems that are required to provide building operators with the information needed to operate their buildings more efficiently and to provide automated diagnostic tools with the information required to detect and diagnose faults and problems that degrade energy performance.

145

Simple Fully Automated Group Classification on Brain fMRI  

SciTech Connect

We propose a simple, well grounded classification technique which is suited for group classification on brain fMRI data sets that have high dimensionality, small number of subjects, high noise level, high subject variability, imperfect registration and capture subtle cognitive effects. We propose threshold-split region as a new feature selection method and majority voteas the classification technique. Our method does not require a predefined set of regions of interest. We use average acros ssessions, only one feature perexperimental condition, feature independence assumption, and simple classifiers. The seeming counter-intuitive approach of using a simple design is supported by signal processing and statistical theory. Experimental results in two block design data sets that capture brain function under distinct monetary rewards for cocaine addicted and control subjects, show that our method exhibits increased generalization accuracy compared to commonly used feature selection and classification techniques.

Honorio, J.; Goldstein, R.; Honorio, J.; Samaras, D.; Tomasi, D.; Goldstein, R.Z.

2010-04-14T23:59:59.000Z

146

Toward a simple molecular understanding of sum frequency generation at air-water interfaces  

Science Conference Proceedings (OSTI)

Second-order vibrational spectroscopies successfully isolate signals from interfaces, but they report on intermolecular structure in a complicated and indirect way. Here we adapt a perspective on vibrational response developed for bulk spectroscopies to explore the microscopic fluctuations to which sum frequency generation (SFG), a popular surface-specific measurement, is most sensitive. We focus exclusively on inhomogeneous broadening of spectral susceptibilities for OH stretching of HOD as a dilute solute in D{sub 2}O. Exploiting a simple connection between vibrational frequency shifts and an electric field variable, we identify several functions of molecular orientation whose averages govern SFG. The frequency-dependence of these quantities is well captured by a pair of averages, involving alignment of OH and OD bonds with the surface normal at corresponding values of the electric field. The approximate form we obtain for SFG susceptibility highlights a dramatic sensitivity to the way a simulated liquid slab is partitioned for calculating second-order response.

Noah-Vanhoucke, Joyce; Smith, Jared D.; Geissler, Phillip L.

2009-01-13T23:59:59.000Z

147

Apex or Salient of Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Apex or Salient of Normal Fault Apex or Salient of Normal Fault Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Apex or Salient of Normal Fault Dictionary.png Apex or Salient of Normal Fault: Normal faults may intersect in the subsurface to form a fault apex or salient. Apices or salients of normal faults account for 3% of structural controls in the Great Basin. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault Fault Intersection Accommodation Zone Displacement Transfer Zone Pull-Apart in Strike-Slip Fault Zone Intrusion Margins and Associated Fractures Stratigraphic Boundaries

148

Simple microwave field imaging technique using hot atomic vapor cells  

E-Print Network (OSTI)

We demonstrate a simple technique for microwave field imaging using alkali atoms in a vapor cell. The microwave field to be measured drives Rabi oscillations on atomic hyperfine transitions, which are detected in a spatially resolved way using a laser beam and a CCD camera. Our vapor cell geometry enables single-shot recording of two-dimensional microwave field images with 350 {\\mu}m spatial resolution. Using microfabricated vapor cell arrays, a resolution of a few micrometers seems feasible. All vector components of the microwave magnetic field can be imaged. Our apparatus is simple and compact and does not require cryogenics or ultra-high vacuum.

Bhi, Pascal

2012-01-01T23:59:59.000Z

149

Simple microwave field imaging technique using hot atomic vapor cells  

E-Print Network (OSTI)

We demonstrate a simple technique for microwave field imaging using alkali atoms in a vapor cell. The microwave field to be measured drives Rabi oscillations on atomic hyperfine transitions, which are detected in a spatially resolved way using a laser beam and a camera. Our vapor cell geometry enables single-shot recording of two-dimensional microwave field images with 350 {\\mu}m spatial resolution. Using microfabricated vapor cell arrays, a resolution of a few micrometers seems feasible. All vector components of the microwave magnetic field can be imaged. Our apparatus is simple and compact and does not require cryogenics or ultra-high vacuum.

Pascal Bhi; Philipp Treutlein

2012-07-20T23:59:59.000Z

150

Simple intrinsic defects in GaAs : numerical supplement.  

SciTech Connect

This Report presents numerical tables summarizing properties of intrinsic defects in gallium arsenide, GaAs, as computed by density functional theory. This Report serves as a numerical supplement to the results published in: P.A. Schultz and O.A. von Lilienfeld, 'Simple intrinsic defects in GaAs', Modelling Simul. Mater. Sci Eng., Vol. 17, 084007 (2009), and intended for use as reference tables for a defect physics package in device models. The numerical results for density functional theory calculations of properties of simple intrinsic defects in gallium arsenide are presented.

Schultz, Peter Andrew

2012-04-01T23:59:59.000Z

151

Overview Report: Normal and Emergency Operation Visualization  

SciTech Connect

This is an overview report to document and illustrate methods used in a project entitled Normal and Emergency Operations Visualization for a utility company, conducted in 2009-2010 timeframe with funding from the utility company and the U.S. Department of Energy. The original final report (about 180 pages) for the project is not available for distribution because it alludes to findings that assessed the design of an operational system that contained proprietary information; this abridged version contains descriptions of methods and some findings to illustrate the approach used, while avoiding discussion of sensitive or proprietary information. The client has approved this abridged version of the report for unlimited distribution to give researchers and collaborators the benefit of reviewing the research concepts and methods that were applied in this study.

Greitzer, Frank L.

2011-05-01T23:59:59.000Z

152

Asymptotic normalization coefficients from ab initio calculations.  

Science Conference Proceedings (OSTI)

We present calculations of asymptotic normalization coefficients (ANCs) for one-nucleon removals from nuclear states of mass numbers 3 {le} A {le} 9. Our ANCs were computed from variational Monte Carlo solutions to the many-body Schroedinger equation with the combined Argonne v{sub 18} two-nucleon and Urbana IX three-nucleon potentials. Instead of computing explicit overlap integrals, we applied a Green function method that is insensitive to the difficulties of constructing and Monte Carlo sampling the long-range tails of the variational wave functions. This method also allows computation of the ANC at the physical separation energy, even when it differs from the separation energy for the Hamiltonian. We compare our results, which for most nuclei are the first ab initio calculations of ANCs, with existing experimental and theoretical results and discuss further possible applications of the technique.

Nollett, K. M.; Wiringa, R. B. (Physics)

2011-04-13T23:59:59.000Z

153

The M-Meter: A Simple Airborne Hydrometeor Measurement Instrument  

Science Conference Proceedings (OSTI)

The M-meter is designed to measure total mass concentration of hydrometeors from aircraft aloft. Its essence is a free-rotating, vaned disk with face normal to the freestream; rotation is driven by airflow through the vanes. Hydrometeors ...

Andrew Detwiler; Hillyer G. Norment

1999-07-01T23:59:59.000Z

154

TWO SIMPLE TOOLS FOR DESIGN OF FIXED SHADES  

E-Print Network (OSTI)

the solar intensity reduction due to the incident sun anglesolar intensity is actually much lower when the sun is verythe sun and the surface; the direct normal solar intensity;

Nawrocki, Dave

2013-01-01T23:59:59.000Z

155

Solar cycle properties described by simple convection-driven dynamos  

E-Print Network (OSTI)

Solar cycle properties described by simple convection-driven dynamos Radostin D Simitev1 a realistic description of the solar cycle, but through a physically motivated change in the boundary be reversed at least at low latitudes. Keywords: self-consistent MHD dynamos, solar dynamo 1. Introduction

Simitev, Radostin D

156

An Improved Simple Chilled Water Cooling Coil Model  

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

An Improved Simple Chilled Water Cooling Coil Model An Improved Simple Chilled Water Cooling Coil Model Title An Improved Simple Chilled Water Cooling Coil Model Publication Type Conference Paper LBNL Report Number LBNL-6031E Year of Publication 2012 Authors Wang, Liping, Philip Haves, and Walter F. Buhl Conference Name SimBuild 2012 IBPSA Conference Date Published 08/2012 Abstract The accurate prediction of cooling and dehumidification coil performance is important in model-based fault detection and in the prediction of HVAC system energy consumption for support of both design and operations. It is frequently desirable to use a simple cooling coil model that does not require detailed specification of coil geometry and material properties. The approach adopted is to match the overall UA of the coil to the rating conditions and to estimate the air-side and water-side components of the UA using correlations developed by Holmes (1982). This approach requires some geometrical information about the coil and the paper investigates the sensitivity of the overall performance prediction to uncertainties in this information, including assuming a fixed ratio of air-side to water-side UA at the rating condition. Finally, simulation results from different coil models are compared, and experimental data are used to validate the improved cooling coil model.

157

Simple procedure for schematic design of passive solar buildings  

SciTech Connect

A simple procedure for use during the schematic phase of passive solar building design is presented in this article. The procedure is quantitative and accurate enough to insure that designs based on the provided starting point values of the primary building parameters will be cost effective.

Wray, W.O.; Kosiewicz, C.E.

1984-01-01T23:59:59.000Z

158

A Simple Seasonal Forecast Update of Tropical Cyclone Activity  

Science Conference Proceedings (OSTI)

A simple method based on the cumulative number of tropical cyclones (TCs) up to a given month in the early season is proposed to update the seasonal prediction of the annual number of TCs in a given ocean basin. For the western North Pacific, if ...

Johnny C. L. Chan

2008-10-01T23:59:59.000Z

159

Computationally Simple Battery Management Techniques for Wireless Nodes  

E-Print Network (OSTI)

Computationally Simple Battery Management Techniques for Wireless Nodes Maria Adamou 1 and Saswati In this paper, we investigate di#11;erent battery management policies for a wireless node. The goal is to increase the lifetime of a node by exploiting its battery characteristics. We have presented a framework

Sarkar, Saswati

160

A direct and simple proof of Jacobi identities for determinants  

E-Print Network (OSTI)

The Jacobi identities play an important role in constructing the explicit exact solutions of a broad class of integrable systems in soliton theory. In the paper, a direct and simple proof of the Jacobi identities for determinants is presented by employing the Pl$\\ddot{u}$cker relations.

Kuihua Yan

2007-12-12T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

A Simple Model of the Wind-Driven Tropical Ocean  

Science Conference Proceedings (OSTI)

A simple analytic theory for some aspects of the wind-driven circulation in the tropical oceans is described. The nearly geostrophic subsurface currants and the pressure field are studied by means of a single-layer model. The flow is forced by ...

P. J. Phlips

1987-11-01T23:59:59.000Z

162

A Simple Stochastic Model of the Precipitation Process  

Science Conference Proceedings (OSTI)

A simple and rather general model of the precipitation process is reviewed and some applications and comparisons are made using data from Sweden. This model has been used by several authors so the article is partly a survey of earlier works but ...

Hans Alexandersson

1985-12-01T23:59:59.000Z

163

A Simple Mechanism for ENSO Residuals and Asymmetry  

Science Conference Proceedings (OSTI)

A simple mechanism is offered that accounts for a change in the long-term (decadal scale) mean of ocean temperatures as the El NioSouthern Oscillation (ENSO) amplitude changes. It is intended as an illustration of a kinematic effect of ...

Paul S. Schopf; Robert J. Burgman

2006-07-01T23:59:59.000Z

164

A simple model to help understand water use  

E-Print Network (OSTI)

that needs to be rejected; and therefore, less cooling water is required per kWh produced. Since between 85 the cooling system; and therefore, less cooling water is required per kWh produced. One way to increase BA simple model to help understand water use at power plants Anna Delgado and Howard J. Herzog

165

Synthesis of complex dynamic character motion from simple animations  

Science Conference Proceedings (OSTI)

In this paper we present a general method for rapid prototyping of realistic character motion. We solve for the natural motion from a simple animation provided by the animator. Our framework can be used to produce relatively complex realistic motion ... Keywords: animation, animation w/constraints, motion transformation, physically based animation, physically based modeling, spacetime constraints

C. Karen Liu; Zoran Popovi?

2002-07-01T23:59:59.000Z

166

Reading direction and signaling in a simple computer simulation  

Science Conference Proceedings (OSTI)

The experiment investigated whether layout of cause and effect affects learning for causal connections in a simple computer simulation. Students (N=113) used an introductory text and a simulation to learn central concepts about neural networks and then ... Keywords: Causal connection, Computer simulation, Multimedia learning, Reading direction, Signaling

Gnter Daniel Rey

2010-09-01T23:59:59.000Z

167

A Simple Model of the Indonesian Throughflow and Its Composition  

Science Conference Proceedings (OSTI)

A simple analytical model of the closure of the wind-driven gyres in the tropical west Pacific is developed to illustrate the role of Halmahera and variations in the Pacific wind stress on the water mass composition of the flow from the Pacific ...

Roxana C. Wajsowicz

1993-12-01T23:59:59.000Z

168

Fractal Fluctuations and Statistical Normal Distribution  

E-Print Network (OSTI)

Dynamical systems in nature exhibit selfsimilar fractal fluctuations and the corresponding power spectra follow inverse power law form signifying long-range space-time correlations identified as self-organized criticality. The physics of self-organized criticality is not yet identified. The Gaussian probability distribution used widely for analysis and description of large data sets underestimates the probabilities of occurrence of extreme events such as stock market crashes, earthquakes, heavy rainfall, etc. The assumptions underlying the normal distribution such as fixed mean and standard deviation, independence of data, are not valid for real world fractal data sets exhibiting a scale-free power law distribution with fat tails. A general systems theory for fractals visualizes the emergence of successively larger scale fluctuations to result from the space-time integration of enclosed smaller scale fluctuations. The model predicts a universal inverse power law incorporating the golden mean for fractal fluctuations and for the corresponding power spectra, i.e., the variance spectrum represents the probabilities, a signature of quantum systems. Fractal fluctuations therefore exhibit quantum-like chaos. The model predicted inverse power law is very close to the Gaussian distribution for small-scale fluctuations, but exhibits a fat long tail for large-scale fluctuations. Extensive data sets of Dow Jones index, Human DNA, Takifugu rubripes (Puffer fish) DNA are analysed to show that the space/time data sets are close to the model predicted power law distribution.

A. M. Selvam

2008-05-22T23:59:59.000Z

169

Empirical Normal Modes versus Empirical Orthogonal Functions for Statistical Prediction  

Science Conference Proceedings (OSTI)

The theory of empirical normal modes (ENMs) for a shallow water fluid is developed. ENMs are basis functions that both have the statistical properties of empirical orthogonal functions (EOFs) and the dynamical properties of normal modes. In fact, ...

Gilbert Brunet; Robert Vautard

1996-12-01T23:59:59.000Z

170

Optimizing Input Data for Gridding Climate Normals for Canada  

Science Conference Proceedings (OSTI)

Spatial models of 19712000 monthly climate normals for daily maximum and minimum temperature and total precipitation are required for many applications. The World Meteorological Organizations recommended standard for the calculation of a normal ...

Ron F. Hopkinson; Michael F. Hutchinson; Daniel W. McKenney; Ewa J. Milewska; Pia Papadopol

2012-08-01T23:59:59.000Z

171

Rocky Mountain (PADD 4) Exports of Normal Butane-Butylene ...  

U.S. Energy Information Administration (EIA)

Normal Butane/Butylene Supply and Disposition; Rocky Mountain (PADD 4) Exports of Crude Oil and Petroleum Products ...

172

Y-Scaling in a simple quark model  

SciTech Connect

A simple quark model is used to define a nuclear pair model, that is, two composite hadrons interacting only through quark interchange and bound in an overall potential. An ''equivalent'' hadron model is developed, displaying an effective hadron-hadron interaction which is strongly repulsive. We compare the effective hadron model results with the exact quark model observables in the kinematic region of large momentum transfer, small energy transfer. The nucleon reponse function in this y-scaling region is, within the traditional frame work sensitive to the nucleon momentum distribution at large momentum. We find a surprizingly small effect of hadron substructure. Furthermore, we find in our model that a simple parametrization of modified hadron size in the bound state, motivated by the bound quark momentum distribution, is not a useful way to correlate different observables.

Kumano, S.; Moniz, E.J.

1988-11-20T23:59:59.000Z

173

A SIMPLE PROOF OF THE HOBBY-RICE THEOREM1  

E-Print Network (OSTI)

Abstract. This paper presents a simple proof of the following theorem due to Hobby and Rice. THEOREM. Let {cp,- (jc)}"_, be n real functions in (di;[0,1]), where i is a finite, nonatomic, real measure. Then there exist {,}'=1, r < n, 0 = Jq < ^ < < , < +1- 1 such that 2 (-.y JC * simple proof of the Hobby-Rice Theorem, which arises in the study of L1-approximation. Theorem A (Hobby, Rice [2]). Let {

Allan Pinkus

1976-01-01T23:59:59.000Z

174

Excitation of simple atoms by slow magnetic monopoles  

DOE Green Energy (OSTI)

We present a theory of excitation of simple atoms by slow moving massive monopoles. Previously presented results for a monopole of Dirac strength on hydrogen and helium are reviewed. The hydrogen theory is extended to include arbitrary integral multiples of the Dirac pole strength. The excitation of helium by double strength poles and by dyons is also discussed. It is concluded that a helium proportional counter is a reliable and effective detector for monopoles of arbitrary strength, and for negatively charged dyons.

Kroll, N.M.; Parke, S.J.; Ganapathi, V.; Drell, S.D.

1984-01-01T23:59:59.000Z

175

Low-dose computed tomography image restoration using previous normal-dose scan  

Science Conference Proceedings (OSTI)

Purpose: In current computed tomography (CT) examinations, the associated x-ray radiation dose is of a significant concern to patients and operators. A simple and cost-effective means to perform the examinations is to lower the milliampere-seconds (mAs) or kVp parameter (or delivering less x-ray energy to the body) as low as reasonably achievable in data acquisition. However, lowering the mAs parameter will unavoidably increase data noise and the noise would propagate into the CT image if no adequate noise control is applied during image reconstruction. Since a normal-dose high diagnostic CT image scanned previously may be available in some clinical applications, such as CT perfusion imaging and CT angiography (CTA), this paper presents an innovative way to utilize the normal-dose scan as a priori information to induce signal restoration of the current low-dose CT image series. Methods: Unlike conventional local operations on neighboring image voxels, nonlocal means (NLM) algorithm utilizes the redundancy of information across the whole image. This paper adapts the NLM to utilize the redundancy of information in the previous normal-dose scan and further exploits ways to optimize the nonlocal weights for low-dose image restoration in the NLM framework. The resulting algorithm is called the previous normal-dose scan induced nonlocal means (ndiNLM). Because of the optimized nature of nonlocal weights calculation, the ndiNLM algorithm does not depend heavily on image registration between the current low-dose and the previous normal-dose CT scans. Furthermore, the smoothing parameter involved in the ndiNLM algorithm can be adaptively estimated based on the image noise relationship between the current low-dose and the previous normal-dose scanning protocols. Results: Qualitative and quantitative evaluations were carried out on a physical phantom as well as clinical abdominal and brain perfusion CT scans in terms of accuracy and resolution properties. The gain by the use of the previous normal-dose scan via the presented ndiNLM algorithm is noticeable as compared to a similar approach without using the previous normal-dose scan. Conclusions: For low-dose CT image restoration, the presented ndiNLM method is robust in preserving the spatial resolution and identifying the low-contrast structure. The authors can draw the conclusion that the presented ndiNLM algorithm may be useful for some clinical applications such as in perfusion imaging, radiotherapy, tumor surveillance, etc.

Ma, Jianhua; Huang, Jing; Feng, Qianjin; Zhang, Hua; Lu, Hongbing; Liang, Zhengrong; Chen, Wufan [Department of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong 510515, China and Department of Radiology, State University of New York, Stony Brook, New York 11794 (United States); Department of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong 510515 (China); Department of Biomedical Engineering, Fourth Military Medical University, Xi'An, Shanxi 710032 (China); Department of Radiology, State University of New York, Stony Brook, New York 11794 (United States); Department of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong 510515 (China)

2011-10-15T23:59:59.000Z

176

Relaxation of a Simple Quantum Random Matrix Model  

E-Print Network (OSTI)

We will derive here the relaxation behavior of a simple quantum random matrix model. The aim is to derive the effective equations which rise when a random matrix interaction is taken in the weak coupling limit. The physical situation this model represents is that a quantum particle restricted to move on two sites, where every site has N possible energy states. The hopping from one site to another is then modeled by a random matrix. The techniques used here can be applied to many variations of the model.

Vidal, Pedro

2011-01-01T23:59:59.000Z

177

Simple Space-Time Symmetries: Generalizing Conformal Field Theory  

E-Print Network (OSTI)

We study simple space-time symmetry groups G which act on a space-time manifold M=G/H which admits a G-invariant global causal structure. We classify pairs (G,M) which share the following additional properties of conformal field theory: 1) The stability subgroup H of a point in M is the identity component of a parabolic subgroup of G, implying factorization H=MAN, where M generalizes Lorentz transformations, A dilatations, and N special conformal transformations. 2) special conformal transformations in N act trivially on tangent vectors to the space-time manifold M. The allowed simple Lie groups G are the universal coverings of SU(m,m), SO(2,D), Sp(l,R), SO*(4n) and E_7(-25) and H are particular maximal parabolic subgroups. They coincide with the groups of fractional linear transformations of Euklidean Jordan algebras whose use as generalizations of Minkowski space time was advocated by Gunaydin. All these groups G admit positive energy representations. It will also be shown that the classical conformal groups SO(2,D) are the only allowed groups which possess a time reflection automorphism; in all other cases space-time has an intrinsic chiral structure.

Gerhard Mack; Mathias de Riese

2004-10-28T23:59:59.000Z

178

A Simple Flood Forecasting Scheme Using Wireless Sensor Networks  

E-Print Network (OSTI)

This paper presents a forecasting model designed using WSNs (Wireless Sensor Networks) to predict flood in rivers using simple and fast calculations to provide real-time results and save the lives of people who may be affected by the flood. Our prediction model uses multiple variable robust linear regression which is easy to understand and simple and cost effective in implementation, is speed efficient, but has low resource utilization and yet provides real time predictions with reliable accuracy, thus having features which are desirable in any real world algorithm. Our prediction model is independent of the number of parameters, i.e. any number of parameters may be added or removed based on the on-site requirements. When the water level rises, we represent it using a polynomial whose nature is used to determine if the water level may exceed the flood line in the near future. We compare our work with a contemporary algorithm to demonstrate our improvements over it. Then we present our simulation results for t...

Seal, Victor; Maity, Shovan; Mitra, Souvik Kr; Mukherjee, Amitava; Naskar, Mrinal Kanti

2012-01-01T23:59:59.000Z

179

SUNYAEV-ZEL'DOVICH SCALING RELATIONS FROM A SIMPLE PHENOMENOLOGICAL MODEL FOR GALAXY CLUSTERS  

SciTech Connect

We build a simple, top-down model for the gas density and temperature profiles for galaxy clusters. The gas is assumed to be in hydrostatic equilibrium along with a component of non-thermal pressure taken from simulations and the gas fraction approaches the cosmic mean value only at the virial radius or beyond. The free parameters of the model are the slope and normalization of the concentration-mass relation, the gas polytropic index, and slope and normalization of the mass-temperature relation. These parameters can be fixed from X-ray and lensing observations. We compare our gas pressure profiles with the recently proposed 'Universal' pressure profile by Arnaud et al. and find very good agreement. We find that the Sunyaev-Zel'dovich effect (SZE) scaling relations between the integrated SZE flux, Y, the cluster gas temperature, T{sub sl}, the cluster mass, M{sub tot}, and the gas mass, M{sub gas}, are in excellent agreement with the recently observed r{sub 2500} SZE scaling relations by Bonamente et al. and r{sub 500} relation by Arnaud et al.. The gas mass fraction increases with cluster mass and is given by f{sub gas}(r{sub 500}) = 0.1324 + 0.0284 log ((M{sub 500})/10{sup 15}h{sup -1}M{sub .}. This is within 10% of observed f{sub gas}(r{sub 500}). The consistency between the global properties of clusters detected in X-ray and in SZE shows that we are looking at a common population of clusters as a whole, and there is no deficit of SZE flux relative to expectations from X-ray scaling properties. Thus, it makes it easier to compare and cross-calibrate clusters from upcoming X-ray and SZE surveys.

Chaudhuri, Anya; Majumdar, Subhabrata, E-mail: anya@tifr.res.in, E-mail: subha@tifr.res.in [Departments of Astronomy and Astrophysics, Tata Institute of Fundamental Research, 1, Homi Bhabha Road, Mumbai 400 005 (India)

2011-02-20T23:59:59.000Z

180

Neural Effects of Beta Amyloid in Normal Aging  

E-Print Network (OSTI)

age categories. Neurobiol Aging 1997; 18: 351-?7. JK, McIntosh AR. Aging gracefully: compensatory B. The effect of normal aging on the coupling of

Mormino, Elizabeth Charlotte

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Used Nuclear Fuel Loading and Structural Performance Under Normal...  

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

Used Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Modeling, Simulation and Experimental Integration RD&D Plan Used Nuclear Fuel Loading...

182

Enhanced Methods for Normalizing Data for Analysis of Search Results  

Enhanced Methods for Normalizing Data for Analysis of Search Results Note: The technology described above is an early stage opportunity. Licensing rights to this ...

183

System and method for normalizing data for analysis of search ...  

System and method for normalizing data for analysis of search results. Note: The technology described above is an early stage opportunity. Licensing ...

184

Predictability of normal heart rhythms and deterministic chaos  

Science Conference Proceedings (OSTI)

The evidence for deterministic chaos in normal heart rhythms is examined. Electrocardiograms were recorded of 29 subjects falling into four groupsa young healthy group

J. H. Lefebvre; D. A. Goodings; M. V. Kamath; E. L. Fallen

1993-01-01T23:59:59.000Z

185

THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION Christopher  

Gasoline and Diesel Fuel Update (EIA)

THE THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION Christopher R. Knittel and Robert S. Pindyck Massachusetts Institute of Technology July 2013 Knittel and Pindyck (MIT) PRICE SPECULATION July 2013 1 / 32 Introduction "Commodities have become an investment class: declines in their prices may simply reflect the whims of speculators." The Economist, June 23, 2012. "Federal legislation should bar pure oil speculators entirely from commodity exchanges in the United States." Joseph Kennedy II, N.Y. Times, April, 10, 2012. Sharp increases in oil prices: $40 per barrel in 2004 to $70 in 2006 to $140 in July 2008. Fell to $38 in early 2009, then increased to $110 in 2011. Are "speculators" to blame? Should futures trading be limited? Confusion over commodity price speculation and how it works. We try to clarify the potential and actual effects of speculators

186

A simple model for particle physics and cosmology  

E-Print Network (OSTI)

We propose a simple extension of the minimal supersymmetric standard model by introducing a gauge singlet in addition to right-handed neutrinos. The model resolves the strong CP problem by Pecci-Quinn symmetry, explains the origin of left-handed neutrino masses as well as MSSM $\\mu$-parameter. It also gives rise to thermal inflation, baryogenesis and dark matter in a remarkably consistent way. Interestingly, resolution of moduli problem by thermal inflation constrains tightly axion coupling constant and flaton decay temperature to be $f_a \\sim 10^{12} \\GeV$ and $T_\\mathrm{d} \\sim 100 \\MeV$, respectively. Model parameters in this case are likely to give right amount of baryon asymmetry and dark matter at present. The main component of dark matter is expected to be the axino whose mass is nearly fixed to be about $1 \\GeV$.

Wan-Il Park

2010-04-14T23:59:59.000Z

187

Aging effects in simple models for glassy relaxation  

E-Print Network (OSTI)

Aging effects in the two-time correlation function and the response function after a quench from a high temperature to some low temperature are considered for a simple kinetic random energy model exhibiting stretched exponential relaxation. Because the system reaches thermal equilibrium for long times after the quench, all aging effect are of a transient nature. In particular, the violations of the fluctuation-dissipation theorem are considered and it is found that the relation between the response and the two-time correlation function depends on another function, the so-called asymmetry. This asymmetry vanishes in equilibrium but cannot be neglected in the aging regime. It is found that plots of the integrated response versus the correlation function are not applicable to quantify the violations of the fluctuation-dissipation theorem in this particular model. This fact has its origin in the absence of a scaling form of the correlation.

Gregor Diezemann

2006-01-17T23:59:59.000Z

188

A simple method for rapidly processing HEU from weapons returns  

SciTech Connect

A method based on the use of a high temperature fluidized bed for rapidly oxidizing, homogenizing and down-blending Highly Enriched Uranium (HEU) from dismantled nuclear weapons is presented. This technology directly addresses many of the most important issues that inhibit progress in international commerce in HEU; viz., transaction verification, materials accountability, transportation and environmental safety. The equipment used to carry out the oxidation and blending is simple, inexpensive and highly portable. Mobile facilities to be used for point-of-sale blending and analysis of the product material are presented along with a phased implementation plan that addresses the conversion of HEU derived from domestic weapons and related waste streams as well as material from possible foreign sources such as South Africa or the former Soviet Union.

McLean, W. II; Miller, P.E.

1994-01-01T23:59:59.000Z

189

Surrogater: A Simple Yet Efficient Document Condensation System  

E-Print Network (OSTI)

This paper describes Surrogater, a simple yet efficient document condensation system that is applicable for commercial use. The system consists of two components, a preprocessing component for automatic generation of key terms for a predefined topic, and a condensation component that produces the condensed versions of on-line documents. To evaluate its performance, we compared Surrogater with five other summarization technologies, including Searchable LEAD, a commercial product. Twenty topics across four domains were evaluated, totalling. 30 documents and 1800 summaries. A two-way ANOVA test suggested that Surrogater performed at least equally well, if not better, compared to other commercial or nearly commercial products. More significantly, the empirical comparison did not show any dramatic differences in performance between Surrogater and Searchable LEAD as reported in an earlier study (Brandow et al. 1995) 1.

Joe Zhou

1998-01-01T23:59:59.000Z

190

Simple, rapid method for the preparation of isotopically labeled formaldehyde  

Science Conference Proceedings (OSTI)

Isotopically labeled formaldehyde (*C.sup..sctn.H.sub.2O) is prepared from labeled methyl iodide (*C.sup..sctn.H.sub.3I) by reaction with an oxygen nucleophile having a pendant leaving group. The mild and efficient reaction conditions result in good yields of *C.sup..sctn.H.sub.2O with little or no *C isotopic dilution. The simple, efficient production of .sup.11CH.sub.2O is described. The use of the .sup.11CH.sub.2O for the formation of positron emission tomography tracer compounds is described. The reaction can be incorporated into automated equipment available to radiochemistry laboratories. The isotopically labeled formaldehyde can be used in a variety of reactions to provide radiotracer compounds for imaging studies as well as for scintillation counting and autoradiography.

Hooker, Jacob Matthew (Port Jefferson, NY); Schonberger, Matthias (Mains, DE); Schieferstein, Hanno (Aabergen, DE); Fowler, Joanna S. (Bellport, NY)

2011-10-04T23:59:59.000Z

191

Simple stressed-skin composites using paper reinforcement  

SciTech Connect

The objective of this study was to demonstrate the composite reinforcement concept in a hands-on manner, using readily available materials; to demonstrate the consequences of certain defects in these structures; and to quantify the gains made by engineering composite construction, using a simple measurement of Young's modulus of electricity. The materials used were foam rubber beams, beams reinforced on one side by bonding with heavy paper, a beam reinforced on both sides by bonding with heavy paper, and a beam with a defect caused by using a piece of waxed paper midway to prevent bonding of the paper. The experiment is designed to teach students at the high school level or above the concept of Young's modulus, a measure of a material's stiffness. 2 figs. (BM)

Bunnell, L.R.

1990-11-01T23:59:59.000Z

192

Simple numerical simulation for liquid dominated geothermal reservoir  

SciTech Connect

A numerical model for geothermal reservoir has been developed. The model used is based on an idealized, two-dimensional case, where the porous medium is isotropic, nonhomogeneous, filled with saturated liquid. The fluids are assumed to have constant and temperature dependent viscosity. A Boussinesq approximation and Darcys law are used. The model will utilize a simple hypothetical geothermal system, i.e. graben within horsts structure, with three layers of different permeabilities. Vorticity plays an importance roles in the natural convection process, and its generation and development do not depend only on the buoyancy, but also on the magnitude and direction relation between the flow velocity and the local gradient of permeability to viscosity ratio. This model is currently used together with a physical, scaled-down reservoir model to help conceptual modeling.

Wintolo, Djoko; Sutrisno; Sudjatmiko; Sudarman, S.

1996-01-24T23:59:59.000Z

193

Stein's Method and the Zero Bias Transformation with Application to Simple Random Sampling  

E-Print Network (OSTI)

Let W be a random variable with mean zero and variance 2 . The distribution of a variate W , satisfying EWf(W ) = 2 Ef 0 (W ) for smooth functions f , exists uniquely and denes the zero bias transformation on the distribution of W . The zero bias transformation shares many interesting properties with the well known size bias transformation for non-negative variables, but is applied to variables taking on both positive and negative values. The transformation can also be dened on more general random objects. The relation between the transformation and the expression wf 0 (w) 2 f 00 (w) which appears in the Stein equation characterizing the mean zero, variance 2 normal Z can be used to obtain bounds on the dierence Efh(W=) h(Z)g for smooth functions h by constructing the pair (W; W ) jointly on the same space. When W is a sum of n not necessarily independent variates, under certain conditions which include a vanishing third moment, bounds on this dierence of the order 1=n for classes of smooth functions h may be obtained. The technique is illustrated by an application to simple random sampling. 1

Larry Goldstein; Gesine Reinert

2001-01-01T23:59:59.000Z

194

Convergence of normal form transformations: The role of symmetries  

E-Print Network (OSTI)

We discuss the convergence problem for coordinate transformations which take a given vector field into Poincar\\'e-Dulac normal form. We show that the presence of linear or nonlinear Lie point symmetries can guaranteee convergence of these normalizing transformations, in a number of scenarios. As an application, we consider a class of bifurcation problems.

G. Cicogna; S. Walcher

2013-09-17T23:59:59.000Z

195

Oil production models with normal rate curves Dudley Stark  

E-Print Network (OSTI)

Oil production models with normal rate curves Dudley Stark School of Mathematical Sciences Queen;Abstract The normal curve has been used to fit the rate of both world and U.S.A. oil production. In this paper we give the first theoretical basis for these curve fittings. It is well known that oil field

Stark, Dudley

196

Shape mixtures of multivariate skew-normal distributions  

Science Conference Proceedings (OSTI)

Classes of shape mixtures of independent and dependent multivariate skew-normal distributions are considered and some of their main properties are studied. If interpreted from a Bayesian point of view, the results obtained in this paper bring tractability ... Keywords: 62E15, 62H05, Bayes, Conjugacy, Regression model, Robustness, Shape parameter, Skew-normal distribution, Skewness

Reinaldo B. Arellano-Valle; Marc G. Genton; Rosangela H. Loschi

2009-01-01T23:59:59.000Z

197

Used Nuclear Fuel Loading and Structural Performance Under Normal  

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

Nuclear Fuel Loading and Structural Performance Under Normal Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Demonstration of Approach and Results of Used Fuel Performance Characterization Used Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Demonstration of Approach and Results of Used Fuel Performance Characterization This report provides results of the initial demonstration of the modeling capability developed to perform preliminary deterministic evaluations of moderate-to-high burnup used nuclear fuel (UNF) mechanical performance under normal conditions of storage (NCS) and normal conditions of transport (NCT) conditions. This report also provides results from the sensitivity studies, and discussion on the long-term goals and objectives of this

198

Laser-induced differential normalized fluorescence method for cancer diagnosis  

SciTech Connect

An apparatus and method for cancer diagnosis are disclosed. The diagnostic method includes the steps of irradiating a tissue sample with monochromatic excitation light, producing a laser-induced fluorescence spectrum from emission radiation generated by interaction of the excitation light with the tissue sample, and dividing the intensity at each wavelength of the laser-induced fluorescence spectrum by the integrated area under the laser-induced fluorescence spectrum to produce a normalized spectrum. A mathematical difference between the normalized spectrum and an average value of a reference set of normalized spectra which correspond to normal tissues is calculated, which provides for amplifying small changes in weak signals from malignant tissues for improved analysis. The calculated differential normalized spectrum is correlated to a specific condition of a tissue sample.

Vo-Dinh, Tuan (Knoxville, TN); Panjehpour, Masoud (Knoxville, TN); Overholt, Bergein F. (Knoxville, TN)

1996-01-01T23:59:59.000Z

199

Modeling Windows in Energy Plus with Simple Performance Indices  

Science Conference Proceedings (OSTI)

The building energy simulation program, Energy Plus (E+), cannot use standard window performance indices (U, SHGC, VT) to model window energy impacts. Rather, E+ uses more accurate methods which require a physical description of the window. E+ needs to be able to accept U and SHGC indices as window descriptors because, often, these are all that is known about a window and because building codes, standards, and voluntary programs are developed using these terms. This paper outlines a procedure, developed for E+, which will allow it to use standard window performance indices to model window energy impacts. In this 'Block' model, a given U, SHGC, VT are mapped to the properties of a fictitious 'layer' in E+. For thermal conductance calculations, the 'Block' functions as a single solid layer. For solar optical calculations, the model begins by defining a solar transmittance (Ts) at normal incidence based on the SHGC. For properties at non-normal incidence angles, the 'Block' takes on the angular properties of multiple glazing layers; the number and type of layers defined by the U and SHGC. While this procedure is specific to E+, parts of it may have applicability to other window/building simulation programs.

Arasteh, Dariush; Kohler, Christian; Griffith, Brent

2009-10-12T23:59:59.000Z

200

A simple transformer-based resonator architecture for low phase noise LC oscillators  

E-Print Network (OSTI)

This thesis investigates the use of a simple transformer-coupled resonator to increase the loaded Q of a LC resonant tank. The windings of the integrated transformer replace the simple inductors as the inductive elements ...

Ogunnika, Olumuyiwa Temitope, 1978-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

A Tour of the OOF2 GUI via A Simple Example Problem  

Science Conference Proceedings (OSTI)

Page 1. A Tour of the OOF2 GUI via A Simple Example Problem 1 Page 2. A Simple Example 2 OOF Start OOF2 by typing in a terminal window: ...

2013-07-05T23:59:59.000Z

202

Selective Catalytic Reduction (SCR) Procurement Guideline for Simple- and Combined-Cycle Combustion Turbines  

Science Conference Proceedings (OSTI)

This report is a selective catalytic reduction (SCR) procurement guideline for simple- and combined-cycle combustion turbines.

2008-03-17T23:59:59.000Z

203

Simple models of district heating systems for load and demand side management  

E-Print Network (OSTI)

Simple models of district heating systems for load and demand side management and operational Energiforskningsprogrammet EFP ENS J.nr. 1373/01-0041 December 2004 #12;Simple models of district heating systems for load 87-7475-323-1 #12;Preface The research project "Simple models of district heating systems for load

204

sMAP: a simple measurement and actuation profile for physical information  

Science Conference Proceedings (OSTI)

As more and more physical information becomes available, a critical problem is enabling the simple and efficient exchange of this data. We present our design for a simple RESTful web service called the Simple Measuring and Actuation Profile (sMAP) ... Keywords: instrumentation, sensor data

Stephen Dawson-Haggerty; Xiaofan Jiang; Gilman Tolle; Jorge Ortiz; David Culler

2010-11-01T23:59:59.000Z

205

Nonlinear normal modes of a two degree of freedom oscillator with a bilateral elastic stop  

E-Print Network (OSTI)

A study of the non linear modes of a two degree of freedom mechanical system with bilateral elastic stop is considered. The issue related to the non-smoothness of the impact force is handled through a regularization technique. In order to obtain the Nonlinear Normal Mode (NNM), the harmonic balance method with a large number of harmonics, combined with the asymptotic numerical method, is used to solve the regularized problem. These methods are present in the software "package" MANLAB. The results are validated from periodic orbits obtained analytically in the time domain by direct integration of the non regular problem. The two NNMs starting respectively from the two linear normal modes of the associated underlying linear system are discussed. The energy-frequency plot is used to present a global vision of the behavior of the modes. The dynamics of the modes are also analyzed comparing each periodic orbits and modal lines. The first NNM shows an elaborate dynamics with the occurrence of multiple impacts per period. On the other hand, the second NNM presents a more simple dynamics with a localization of the displacement on the first mass.

El Hadi Moussi; Sergio Bellizzi; Bruno Cochelin; I. Nistor

2013-02-04T23:59:59.000Z

206

Statistical modelling of tropical cyclone tracks: non-normal innovations  

E-Print Network (OSTI)

We present results from the sixth stage of a project to build a statistical hurricane model. Previous papers have described our modelling of the tracks, genesis, and lysis of hurricanes. In our track model we have so far employed a normal distribution for the residuals when computing innovations, even though we have demonstrated that their distribution is not normal. Here, we test to see if the track model can be improved by including more realistic non-normal innovations. The results are mixed. Some features of the model improve, but others slightly worsen.

Hall, T; Hall, Tim; Jewson, Stephen

2005-01-01T23:59:59.000Z

207

ADLIB: A simple database framework for beamline codes  

SciTech Connect

There are many well developed codes available for beamline design and analysis. A significant fraction of each of these codes is devoted to processing its own unique input language for describing the problem. None of these large, complex, and powerful codes does everything. Adding a new bit of specialized physics can be a difficult task whose successful completion makes the code even larger and more complex. This paper describes an attempt to move in the opposite direction, toward a family of small, simple, single purpose physics and utility modules, linked by an open, portable, public domain database framework. These small specialized physics codes begin with the beamline parameters already loaded in the database, and accessible via the handful of subroutines that constitute ADLIB. Such codes are easier to write, and inherently organized in a manner suitable for incorporation in model based control system algorithms. Examples include programs for analyzing beamline misalignment sensitivities, for simulating and fitting beam steering data, and for translating among MARYLIE, TRANSPORT, and TRACE3D formats.

Mottershead, C.T.

1993-01-01T23:59:59.000Z

208

ADLIB: A simple database framework for beamline codes  

SciTech Connect

There are many well developed codes available for beamline design and analysis. A significant fraction of each of these codes is devoted to processing its own unique input language for describing the problem. None of these large, complex, and powerful codes does everything. Adding a new bit of specialized physics can be a difficult task whose successful completion makes the code even larger and more complex. This paper describes an attempt to move in the opposite direction, toward a family of small, simple, single purpose physics and utility modules, linked by an open, portable, public domain database framework. These small specialized physics codes begin with the beamline parameters already loaded in the database, and accessible via the handful of subroutines that constitute ADLIB. Such codes are easier to write, and inherently organized in a manner suitable for incorporation in model based control system algorithms. Examples include programs for analyzing beamline misalignment sensitivities, for simulating and fitting beam steering data, and for translating among MARYLIE, TRANSPORT, and TRACE3D formats.

Mottershead, C.T.

1993-03-01T23:59:59.000Z

209

A simple supersymmetric extension of K field theories  

E-Print Network (OSTI)

We continue the investigation of supersymmetric extensions of field theories with a non-standard kinetic term (K field theories) resumed recently. Concretely, for K field theories which allow for kink or compacton solutions in 1+1 dimensions, i.e., for domain walls in a higher-dimensional context, we find a simple supersymmetric extension such that the boson field still has the kink solution, and the field equation for the fermion in the kink background is linear and is solved by the first spatial derivative of the kink, as is the case in the corresponding standard supersymmetric theories. This supersymmetric extension, nevertheless, is peculiar in several aspects. The bosonic part of the supersymmetric Lagrangian is not equal to the original bosonic K field Lagrangian, but the bosonic field equations coincide. Further, the field equation for the bosonic field is produced by the variation of the auxiliary field and vice versa. This observation may be of some independent interest. Finally, the presence of kink...

Adam, C; Sanchez-Guillen, J

2010-01-01T23:59:59.000Z

210

Stochastic versus deterministic variability in simple neuronal circuits  

E-Print Network (OSTI)

ABSTRACT Long timesenes of monosynati la-afferent to alpha-motoneuron reflexeswere recorded inte L7 or Si ventral roots in te cat Time serieswerecolleted beforeand afterspinalization atT13 duringconstantampitude stimulatons ofgroup la muscle afferents in the riceps surae muscle nerves. Using autocorrelation to analyze te linearcorrelaton inFte time series demonstrated oscillations inthedecerebratestate (4/4) Ftatwere eliminated afterspinalizain (5/5).Threetestsfordeterninism were applied tothese series: 1) local flow, 2) loal dispersion, and 3) nonlinear prediction. These algorithmswere validated with time senes generated from known determinisc equaions. For each expenrmental and teoretical time senes used, matched time-series ofstochastic surrogate dataweregenerated toserveas mathematicaland statstcal ctrols.Two ofthetime series colected in thedecerebrate state (2/4) demonstrated evidence fordeterministicsbucture. This structurecould notbeaccounted forbytheautocorrelation inthedata,andwasabolishedfollowingspinalizaon. Noneofthetimeseriescollected inthespinalized state (0/5) demonstrated evkience of determinism. Although monosynaptic reflex variability is generally stochastic in the spinalized state, this simple driven system may display deterministic behavior in the decerebrate state.

Taeun Chang; Steven J. Schiff; Tim Sauer; Jean-pierre Gossard; Robert E. Burke

1994-01-01T23:59:59.000Z

211

Raman spectroscopy on simple molecular systems at very high density  

DOE Green Energy (OSTI)

We present an overview of how Raman spectroscopy is done on simple molecular substances at high pressures. Raman spectroscopy is one of the most powerful tools for studying these substances. It is often the quickest means to explore changes in crystal and molecular structures, changes in bond strength, and the formation of new chemical species. Raman measurements have been made at pressures up to 200 GPa (2 Mbar). Even more astonishing is the range of temperatures (4-5200/degree/K) achieved in various static and dynamic (shock-wave) pressure experiments. One point we particularly wish to emphasize is the need for a good theoretical understanding to properly interpret and use experimental results. This is particularly true at ultra-high pressures, where strong crystal field effects can be misinterpreted as incipient insulator-metal transitions. We have tried to point out apparatus, techniques, and results that we feel are particularly noteworthy. We have also included some of the /open quotes/oral tradition/close quotes/ of high pressure Raman spectroscopy -- useful little things that rarely or never appear in print. Because this field is rapidly expanding, we discuss a number of exciting new techniques that have been informally communicated to us, especially those that seem to open new possibilities. 58 refs., 18 figs.

Schiferl, D.; LeSar, R.S.; Moore, D.S.

1988-01-01T23:59:59.000Z

212

A Simple Family of Models for Eccentric Keplerian Fluid Disks  

E-Print Network (OSTI)

In order to be in a long-lived configuration, the density in a fluid disk should be constant along streamlines to prevent compressional (PdV) work from being done cyclically around every orbit. In a pure Kepler potential, flow along aligned, elliptical streamlines of constant eccentricity will satisfy this condition. For most density profiles, differential precession driven by the pressure gradient will destroy the alignment; however, in the razor-thin approximation there is a family of simple equilibria in which the precession frequency is the same at all radii. These disks may therefore be long-lived at significant eccentricities. The density can be made axisymmetric as r goes to 0, while maintaining the precession rate, by relaxing the requirement of constancy along streamlines in an arbitrarily small transition region near the center. In the limit of small eccentricity, the models can be seen as acoustically perturbed axisymmetric disks, and the precession rate is shown to agree with linear theory. The perturbation is a traveling wave similar to an ocean wave, with the fluid rising and falling epicyclically in the gravitational field of the central mass. The expected emission line profiles from the eccentric disks are shown to be strongly asymmetric in general, and, in extreme cases, prone to misinterpretation as single narrow lines with significant velocity offsets.

T. S. Statler

2001-08-06T23:59:59.000Z

213

Transuranic actinide reactions with simple gas-phase molecules.  

DOE Green Energy (OSTI)

The intent of this research is to conduct an experimental study of f-element chemistry fo r the purpose of identifying reaction trends and mechanisms of the early actinide metals with simple gas phase molecules . Previous research has elucidated some of the fundamenta l chemistry of the 4f elements,1-5 however, more complex chemistry is expected for the 5f serie s due to the inclusion of the 5f electrons in the valence shell . The matrix isolation approach, which is well-suited to the experimental study of transient species, will be used for sample collection, and IR/NIR/VIS spectroscopy will be employed to interrogate deposited matrices . The strength of this method lies in the use of isotopes of reactants, which permits the identification of guest molecules in a noble gas matrix by observation of vibrational frequenc y shifts and patterns upon isotopic substitution . Using this technique at the University of Virginia, the first noble gas-actinide bond has recently been identified, a weak U-Ar bond on the CUO molecule.6 Uranium has similarly been observed to bond to krypton and xenon, whereas thoriu m and the lanthanides have not exhibited this activity . It is expected that plutonium will be even more reactive in this respect . We will extend the body of actinide experimental evidence t o include the transuranic elements neptunium, plutonium, and americium reacted with isotopes o f oxygen, nitrogen, hydrogen, carbon monoxide, and carbon dioxide .

Willson, S. P. (Stephen P.); Veirs, D. K. (Douglas Kirk); Baiardo, J. P. (Joseph P.)

2003-01-01T23:59:59.000Z

214

Chemical And Isotopic Investigation Of Warm Springs Associated With Normal  

Open Energy Info (EERE)

Isotopic Investigation Of Warm Springs Associated With Normal Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Chemical And Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Details Activities (3) Areas (1) Regions (0) Abstract: Thermal springs associated with normal faults in Utah have been analyzed for major cations and anions, and oxygen and hydrogen isotopes. Springs with measured temperatures averaging greater than 40°C are characterized by Na + K- and SO4 + Cl-rich waters containing 103 to 104 mg/l of dissolved solids. Lower temperature springs, averaging less than 40°C, are more enriched in Ca + Mg relative to Na + K. Chemical variations monitored through time in selected thermal springs are probably produced by

215

Dating of major normal fault systems using thermochronology- An example  

Open Energy Info (EERE)

Dating of major normal fault systems using thermochronology- An example Dating of major normal fault systems using thermochronology- An example from the Raft River detachment, Basin and Range, western United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Dating of major normal fault systems using thermochronology- An example from the Raft River detachment, Basin and Range, western United States Details Activities (1) Areas (1) Regions (0) Abstract: Application of thermochronological techniques to major normal fault systems can resolve the timing of initiation and duration of extension, rates of motion on detachment faults, timing of ductile mylonite formation and passage of rocks through the crystal-plastic to brittle transition, and multiple events of extensional unroofing. Here we determine

216

Definition: Apex or Salient of Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Apex or Salient of Normal Fault Jump to: navigation, search Dictionary.png Apex or Salient of Normal Fault Normal faults may intersect in the subsurface to form a fault apex or salient. Apices or salients of normal faults account for 3% of structural controls in the Great Basin.[2] View on Wikipedia Wikipedia Definition References ↑ James E. Faulds,Nicholas H. Hinz,Mark F. Coolbaugh,Patricia H. Cashman,Christopher Kratt,Gregory Dering,Joel Edwards,Brett Mayhew,Holly McLachlan. 2011. Assessment of Favorable Structural Settings of Geothermal Systems in the Great Basin, Western USA. In: Transactions. GRC Anual Meeting; 2011/10/23; San Diego, CA. Davis, CA: Geothermal Resources Council; p. 777-783

217

Long-Lead Seasonal Temperature Prediction Using Optimal Climate Normals  

Science Conference Proceedings (OSTI)

This study is intended to determine the spatially varying optimal time periods for calculating seasonal climate normals over the entire United States based on temperature data at 344 United States climate divisions during the period of 19311993. ...

Jin Huang; Huug M. van den Dool; Anthony G. Barnston

1996-04-01T23:59:59.000Z

218

Production and Handling Slide 27: Feed Cylinder with Normal Assay...  

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

Normal Assay (0.711%U) Arriving at Plant Refer to caption below for image description The enrichment process begins with "feed material," natural uranium that contains 0.711%...

219

Size, shape, and appearance of the normal female pituitary gland  

SciTech Connect

One hundred seven women 18-65 years old were studied who were referred for suspected central nervous system disease not related to the pituitary gland or hypothalamus. High-resolution, direct, coronal, contrast-enhanced computed tomography (CT) was used to examine the size; shape, and density of the normal pituitary gland. There were three major conclusions: (1) the height of the normal gland can be as much as 9 mm; (2) the superior margin of the gland may bulge in normal patients; and (3) both large size and convex contour appear to be associated with younger age. It was also found that serum prolactin levels do not appear to correlate with the CT appearances. Noise artifacts inherent in high-detail, thin-section, soft-tissue scanning may be a limiting factor in defining reproducible patterns in different parts of the normal pituitary gland.

Wolpert, S.M.; Molitch, M.E.; Goldman, J.A.; Wood, J.B.

1984-08-01T23:59:59.000Z

220

A phrase-based statistical model for SMS text normalization  

Science Conference Proceedings (OSTI)

Short Messaging Service (SMS) texts behave quite differently from normal written texts and have some very special phenomena. To translate SMS texts, traditional approaches model such irregularities directly in Machine Translation (MT). However, such ...

AiTi Aw; Min Zhang; Juan Xiao; Jian Su

2006-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Characteristics of Wind Turbines Under Normal and Fault Conditions: Preprint  

SciTech Connect

This paper investigates the characteristics of a variable-speed wind turbine connected to a stiff or weak grid under normal and fault conditions and the role of reactive power compensation.

Muljadi, E.; Butterfield, C. P.; Parsons, B.; Ellis, A.

2007-02-01T23:59:59.000Z

222

Champernowne's Number, Strong Normality, and the X ... - CECM  

E-Print Network (OSTI)

A number ? is simply normal in the base r if every 1-string in its .... The results for [ 0, 1) are extended to R in the same way. 5. .... Science and Applications), 1988.

223

Normal-Mode Decomposition of Small-Scale Oceanic Motions  

Science Conference Proceedings (OSTI)

Small-scale oceanic motions consist of vortical motion and internal waves. In a linear or weakly nonlinear system these two types of motions can be unambiguously separated using normal-mode decomposition in which the vortical mode carries the ...

Ren-Chieh Lien; Peter Mller

1992-12-01T23:59:59.000Z

224

Normalized Maximum-Likelihood Estimators of the Directional Wave Spectrum  

Science Conference Proceedings (OSTI)

A new family of data-adaptative directional wave spectrum estimators is proposed. These estimators may be considered as an improvement over the well-known extended maximum-likelihood method (EMLM). The normalization is based on the idea of ...

M. A. Arribas; J. J. Egozcue

1995-06-01T23:59:59.000Z

225

On the Best Temperature and Precipitation Normals: The Illinois Situation  

Science Conference Proceedings (OSTI)

Historical (190179) temperature and precipitation data for four Illinois stations were used to determine the frequency with which summer and winter averages for periods of various length (i.e., different climatic normals) are closest to the ...

Peter J. Lamb; Stanley A. Changnon Jr.

1981-12-01T23:59:59.000Z

226

Solar: monthly and annual average direct normal irradiance GIS...  

Open Energy Info (EERE)

>
Direct Normal Irradiance (kWhm2day)
NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)
22-year Monthly & Annual Average...

227

East Coast (PADD 1) Normal Butane-Butylene Stock Change ...  

U.S. Energy Information Administration (EIA)

East Coast (PADD 1) Normal Butane-Butylene Stock Change (Thousand Barrels per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1981: 4-3: 1: ...

228

East Coast (PADD 1) Gas Plant Production of Normal Butane ...  

U.S. Energy Information Administration (EIA)

East Coast (PADD 1) Gas Plant Production of Normal Butane-Butylene (Thousand Barrels per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; ...

229

Midwest (PADD 2) Exports of Normal Butane-Butylene (Thousand ...  

U.S. Energy Information Administration (EIA)

Midwest (PADD 2) Exports of Normal Butane-Butylene (Thousand Barrels per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1981: 0: 0: 0: 0: ...

230

Midwest (PADD 2) Normal Butane-Butylene Stock Change (Thousand ...  

U.S. Energy Information Administration (EIA)

Midwest (PADD 2) Normal Butane-Butylene Stock Change (Thousand Barrels per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1981-4-34-7: 14: ...

231

West Coast (PADD 5) Imports of Normal Butane-Butylene ...  

U.S. Energy Information Administration (EIA)

West Coast (PADD 5) Imports of Normal Butane-Butylene (Thousand Barrels per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1981: 9: 18: ...

232

Why Do Forecasts for Near Normal Often Fail?  

Science Conference Proceedings (OSTI)

It has been observed by many that skill of categorical forecasts, when decomposed into the contributions from each category separately, tends to be low, if not absent or negative, in the near normal (N) category. We have witnessed many ...

Huug M. Van Den Dool; Zoltan Toth

1991-03-01T23:59:59.000Z

233

Time-Extrapolated Rainfall Normals for Central Equatorial Pacific Islands  

Science Conference Proceedings (OSTI)

Normal annual rainfalls (means and medians) for the period 191075 are estimated for islands in the central equatorial Pacific. Ridge regression, with an empirically determined bias constant, is used to establish the relationships among the ...

Bernard N. Meisner

1983-03-01T23:59:59.000Z

234

Simple Dynamic Gasifier Model That Runs in Aspen Dynamics  

SciTech Connect

Gasification (or partial oxidation) is a vital component of 'clean coal' technology. Sulfur and nitrogen emissions can be reduced, overall energy efficiency is increased, and carbon dioxide recovery and sequestration are facilitated. Gasification units in an electric power generation plant produce a fuel for driving combustion turbines. Gasification units in a chemical plant generate gas, which can be used to produce a wide spectrum of chemical products. Future plants are predicted to be hybrid power/chemical plants with gasification as the key unit operation. The widely used process simulator Aspen Plus provides a library of models that can be used to develop an overall gasifier model that handles solids. So steady-state design and optimization studies of processes with gasifiers can be undertaken. This paper presents a simple approximate method for achieving the objective of having a gasifier model that can be exported into Aspen Dynamics. The basic idea is to use a high molecular weight hydrocarbon that is present in the Aspen library as a pseudofuel. This component should have the same 1:1 hydrogen-to-carbon ratio that is found in coal and biomass. For many plantwide dynamic studies, a rigorous high-fidelity dynamic model of the gasifier is not needed because its dynamics are very fast and the gasifier gas volume is a relatively small fraction of the total volume of the entire plant. The proposed approximate model captures the essential macroscale thermal, flow, composition, and pressure dynamics. This paper does not attempt to optimize the design or control of gasifiers but merely presents an idea of how to dynamically simulate coal gasification in an approximate way.

Robinson, P.J.; Luyben, W.L. [Lehigh University, Bethlehem, PA (United States). Dept. of Chemical Engineering

2008-10-15T23:59:59.000Z

235

Simple solar spectral model for direct and diffuse irradiance on horizontal and tilted planes at the earth's surface for cloudless atmospheres  

DOE Green Energy (OSTI)

A new, simple model for calculating clear-sky direct and diffuse spectral irradiance on horizontal and tilted surfaces is presented. The model is based on previously reported simple algorithms and on comparisons with rigorous radiative transfer calculations and limited outdoor measurements. Equations for direct normal irradiance are outlined; and include: Raleigh scattering; aerosol scattering and absorption; water vapor absorption; and ozone and uniformly mixed gas absorption. Inputs to the model include solar zenith angle, collector tilt angle, atmospheric turbidity, amount of ozone and precipitable water vapor, surface pressure, and ground albedo. The model calculates terrestrial spectra from 0.3 to 4.0 ..mu..m with approximately 10 nm resolution. A major goal of this work is to provide researchers with the capability to calculate spectral irradiance for different atmospheric conditions and different collector geometries using microcomputers. A listing of the computer program is provided.

Bird, R.; Riordan, C.

1984-12-01T23:59:59.000Z

236

Active, polymer-based composite material implementing simple shear  

E-Print Network (OSTI)

A novel active material for controllable, high work density applications was designed, fabricated, analyzed, and tested. This active material uses a lens-shaped element to implement simple shear motion with gas pressure actuation. The lens element is a bladder-filled Kevlar fabric embedded in a polyurethane matrix. The polyurethanes hyperelastic material parameters were found by experiment and estimated by numerical analysis. The Ogden material constant set found shows good agreement within the shear actuators working range. A fabricated, single-element shear actuator reached 34.2% free shear strain when pressurized to 1.03 MPa. A unitary shear actuator was modeled as were single-acting and dual-acting shear actuator arrays so that solitary and multi-cell behaviors were estimated. Actuator work performance and power from nonlinear finite element analysis found conventional work density is 0.2289 MJ/m3 and 0.2482 MJ/m3, for the singleacting and double-acting shear actuator, respectively. Scientific work densities are 0.0758 MJ/m3 and 0.0375 MJ/m3, for single-acting and double-acting shear actuators, respectively. Calculation shows the volumetric power for a single-acting shear actuator is 0.4578 MW/m3 and 0.4964 MW/m3 for the double-acting shear actuator. Finally, a nastic actuator is applied to twist a generic structural beam. The nasticmaterial actuated structure has an advantage over conventional actuator systems. Work per unit volume for nastic materials is 2280~8471% higher than conventional, discrete actuators that use electric motors. When compared by work per unit mass, this nastic actuator is 2592~13900% better than conventional actuator because nastic actuator is made from lighter materials and it distributes the actuation throughout the structure, which eliminates connecting components. The nastic actuators volumetric power is 2217~8602% higher than conventional actuators. Finally, the nastic actuator is 2656~14269% higher than conventional actuators for power per unit mass.

Lee, Sang Jin

2008-12-01T23:59:59.000Z

237

Used Nuclear Fuel Loading and Structural Performance Under Normal  

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

Used Nuclear Fuel Loading and Structural Performance Under Normal Used Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Modeling, Simulation and Experimental Integration RD&D Plan Used Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Modeling, Simulation and Experimental Integration RD&D Plan Used nuclear fuel (UNF) must maintain its integrity during the storage period in such a way that it can withstand the physical forces of handling and transportation associated with restaging the fuel and transporting it to treatment or recycling facilities, or to a geologic repository. This RD&D plan describes a methodology, including development and use of analytical models, to evaluate loading and associated mechanical responses of UNF rods and key structural components. The plan objective is to

238

A complete and normalized 61850 substation (Smart Grid Project) | Open  

Open Energy Info (EERE)

complete and normalized 61850 substation (Smart Grid Project) complete and normalized 61850 substation (Smart Grid Project) Jump to: navigation, search Project Name A complete and normalized 61850 substation Country Spain Headquarters Location Madrid, Spain Coordinates 40.488735°, -3.284912° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.488735,"lon":-3.284912,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

239

Used Nuclear Fuel Loading and Structural Performance Under Normal  

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

Nuclear Fuel Loading and Structural Performance Under Normal Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Modeling, Simulation and Experimental Integration RD&D Plan Used Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Modeling, Simulation and Experimental Integration RD&D Plan Used nuclear fuel (UNF) must maintain its integrity during the storage period in such a way that it can withstand the physical forces of handling and transportation associated with restaging the fuel and transporting it to treatment or recycling facilities, or to a geologic repository. This RD&D plan describes a methodology, including development and use of analytical models, to evaluate loading and associated mechanical responses of UNF rods and key structural components. The plan objective is to

240

Gradually Truncated Log-normal distribution- Size distribution of firms  

E-Print Network (OSTI)

Many natural and economical phenomena are described through power law or log-normal distributions. In these cases, probability decreases very slowly with step size compared to normal distribution. Thus it is essential to cut-off these distributions for larger step size. Recently we introduce the gradually truncated power law distribution to successfully describe variation of financial, educational, physical and citation index. In the present work, we introduce gradually truncated log-normal distribution in which we gradually cut-off larger steps due to physical limitation of the system. We applied this distribution successfully to size distribution of USAs manufactoring firms which is measured through their annual sell. The physical limitation are due to limited market size or shortage of highly competent executives. I.

Hari M. Gupta; Jos R. Campanha

2008-01-01T23:59:59.000Z

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241

EIA Energy Information Administration  

U.S. Energy Information Administration (EIA) Indexed Site

in September, with cooling degree days 23 percent above normal for the month. In response to increased air-conditioning demand, electricity generation in Texas during...

242

EIA/NASEO Winter Fuels Conference - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Heating Fuel Stock Cycles. ... Retail Heating Oil Prices Should Be Lower This Year. Heating Degree-Days. Normal Weather Will Bring Higher Demand. Distillate Production.

243

Defining the normal turbine inflow within a wind park environment  

DOE Green Energy (OSTI)

This brief paper discusses factors that must be considered when defining the [open quotes]normal[close quotes] (as opposed to [open quotes]extreme[close quotes]) loading conditions seen in wind turbines operating within a wind park environment. The author defines the [open quotes]normal[close quotes] conditions to include fatigue damage accumulation as a result of: (1) start/stop cycles, (2) emergency shutdowns, and (3) the turbulence environment associated with site and turbine location. He also interprets [open quotes]extreme[close quotes] loading conditions to include those events that can challenge the survivability of the turbine.

Kelley, N.D.

1993-06-01T23:59:59.000Z

244

Defining the normal turbine inflow within a wind park environment  

DOE Green Energy (OSTI)

This brief paper discusses factors that must be considered when defining the {open_quotes}normal{close_quotes} (as opposed to {open_quotes}extreme{close_quotes}) loading conditions seen in wind turbines operating within a wind park environment. The author defines the {open_quotes}normal{close_quotes} conditions to include fatigue damage accumulation as a result of: (1) start/stop cycles, (2) emergency shutdowns, and (3) the turbulence environment associated with site and turbine location. He also interprets {open_quotes}extreme{close_quotes} loading conditions to include those events that can challenge the survivability of the turbine.

Kelley, N.D.

1993-06-01T23:59:59.000Z

245

Method for construction of normalized cDNA libraries  

DOE Patents (OSTI)

This invention provides a method to normalize a directional cDNA library constructed in a vector that allows propagation in single-stranded circle form. The method comprises: (a) propagating the directional cDNA library in single-stranded circles; (b) generating fragments complementary to the 3` noncoding sequence of the single-stranded circles in the library to produce partial duplexes; (c) purifying the partial duplexes; (d) melting and reassociating the purified partial duplexes to moderate Cot; and (e) purifying the unassociated single-stranded circles, thereby generating a normalized cDNA library. 4 figs.

Soares, M.B.; Efstratiadis, A.

1996-01-09T23:59:59.000Z

246

Linear Solar Models: a simple tool to investigate the properties of solar interior  

E-Print Network (OSTI)

We describe a simple method to study the dependence of the solar properties on a generic (small) modification the physical inputs adopted in standard solar models calculations.

Villante, F L

2010-01-01T23:59:59.000Z

247

Automated geometric features evaluation method for normal foot skeleton model  

Science Conference Proceedings (OSTI)

"Normal foot model" is a geometric model of a healthy human foot. As the comparison of the processed feet requires a reference ideal healthy foot parameterization it was necessary to create such a model by defining skeleton geometric features and generating ...

Bartosz Borucki; Krzysztof Nowi?Ski; Micha? Chlebiej; Andrzej Rutkowski; Pawe? Adamczyk; Jacek Laskowski

2011-01-01T23:59:59.000Z

248

Normal accidents: Data quality problems in ERP-enabled manufacturing  

Science Conference Proceedings (OSTI)

The efficient operation of Enterprise Resource Planning (ERP) systems largely depends on data quality. ERP can improve data quality and information sharing within an organization. It can also pose challenges to data quality. While it is well known that ... Keywords: Data quality, ERP, complexity, enterprise resource planning, normal accident, tight coupling

Lan Cao, Hongwei Zhu

2013-05-01T23:59:59.000Z

249

Nonlinear Normal-Mode Balancing and the Ellipticity Condition  

Science Conference Proceedings (OSTI)

Using a low-order, spectral, shallow-water model on an f-plane, the conditions under which height-constrained nonlinear normal mode initialization fails and the existence of realizable balancing wind fields are examined. The relationship of this ...

Joseph J. Tribbia

1981-08-01T23:59:59.000Z

250

Strong Normality of Numbers - CECM - Simon Fraser University  

E-Print Network (OSTI)

dence of the patterning and review some relevant results in normality. We propose ... outstanding historical results. .... will work in R/Z by discarding all digits to the left of the decimal point in. 5 ..... puting 88 (II, Science and Applications), 1988.

251

Recent Studies of RF Breakdown Physics in Normal Conducting Cavities  

SciTech Connect

The operating accelerating gradient in normal conducting accelerating structures is often limited by rf breakdown. The behavior of the rf breakdown depends on multiple parameters, including the input rf power, rf circuit, cavity shape and material. Here we discuss recent experimental data and theoretical studies of rf breakdown physics.

Dolgashev, Valery; /SLAC

2012-06-11T23:59:59.000Z

252

DYNAMICS OF DISTANT NORMAL GALAXIES David C. Koo 1  

E-Print Network (OSTI)

, a new and very powerful dimension has been added to the suite of tools to explore distant galaxiesDYNAMICS OF DISTANT NORMAL GALAXIES David C. Koo 1 1 UCO/Lick Observatory, Department of Astronomy of techniques for measuring total dynamical masses are being explored and found practical. I highlight three

253

Projecting diffusion along the normal bundle of a plane curve  

E-Print Network (OSTI)

The purpose of this paper is to provide new formulas for the estimation of the effective diffusion coefficient of an equation of Fick-Jacob's type obtained by projecting the two-dimensional diffusion equation along the normal direction of an arbitrary plane curve.

Carlos Valero Valdes; Rafael Herrera Guzman

2013-08-21T23:59:59.000Z

254

A simple model of impact dynamics in many dimensional systems, with applications to heat exchangers  

E-Print Network (OSTI)

A simple model of impact dynamics in many dimensional systems, with applications to heat exchangers present a simple hybrid model of impact dynamics in heat exchangers. The method, based on graph theory and experimental evidence. 1 Introduction A heat exchanger typically consists of a large number of thin pipes

Bristol, University of

255

Simplicity in complexity: the photosynthetic reaction center performs as a simple 0.2 V battery  

E-Print Network (OSTI)

Simplicity in complexity: the photosynthetic reaction center performs as a simple 0.2 V battery life. We show here that it operates in a simple, battery-like manner, with a maximum potential of 0 battery' cannot generate more than a 1.5 V potential, which is its electron motive force O0 e3 . Only when

van Stokkum, Ivo

256

Improvement on Pretty-Simple Password Authenticated Key-Exchange Protocol for Wireless Networks  

Science Conference Proceedings (OSTI)

This paper presents an improved method inspired by the recently proposed Pretty-Simple PAKE (Password Authenticated Key-Exchange) protocol, which is already a well-known, robust and simple password authenticated key exchange scheme. In our even more ... Keywords: elliptic curve discrete logarithm, key exchange, password authentication, wireless network

Ting-Yi Chang; Chou-Chen Yang; Chia-Meng Chen

2004-04-01T23:59:59.000Z

257

Development and Implementation of Interactive/Visual Software for Simple Aircraft Gas Turbine Design  

E-Print Network (OSTI)

Development and Implementation of Interactive/Visual Software for Simple Aircraft Gas Turbine of software to analyze and design gas turbine systems has been an important part of this course since 1988 of this project was to develop MS Windows based software: Simple Aircraft Gas Turbine Design, that is easy to use

Ghajar, Afshin J.

258

Pore pressure development in small-strain undrained loading of soils according to a simple model  

E-Print Network (OSTI)

This note discusses a simple equation that may be useful in the study of pore pressures generated in the undrained loading of soils. The equation is employed to describe the pore pressure development accompanying a small stress increment in the undrained triaxial compression test and in the undrained simple shear test. The cases of incompressible and compressible pore fluids are examined.

Jos Jorge Nader

2013-07-28T23:59:59.000Z

259

The Cauchy interlacing theorem in simple Euclidean Jordan algebras and some consequences  

E-Print Network (OSTI)

In this article, based on the min-max theorem of Hirzebruch, we formulate and prove the Cauchy interlacing theorem in simple Euclidean Jordan algebras. As a consequence, we relate the inertias of an element and its principal components and extend some well known matrix theory theorems and inequalities to the setting of simple Euclidean Jordan algebras.

M. Seetharama Gowda A; J. Tao B

2008-01-01T23:59:59.000Z

260

Procedure for normalization of cDNA libraries  

DOE Patents (OSTI)

This invention provides a method to normalize a cDNA library constructed in a vector capable of being converted to single-stranded circles and capable of producing complementary nucleic acid molecules to the single-stranded circles comprising: (a) converting the cDNA library in single-stranded circles; (b) generating complementary nucleic acid molecules to the single-stranded circles; (c) hybridizing the single-stranded circles converted in step (a) with complementary nucleic acid molecules of step (b) to produce partial duplexes to an appropriate Cot; (e) separating the unhybridized single-stranded circles from the hybridized single-stranded circles, thereby generating a normalized cDNA library. 1 fig.

Bonaldo, M.D.; Soares, M.B.

1997-12-30T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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.
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to obtain the most current and comprehensive results.


261

Efficient Software Implementation for Finite Field Multiplication in Normal Basis  

E-Print Network (OSTI)

Abstract. Finite field arithmetic is becoming increasingly important in today's computer systems, particularly for implementing cryptographic operations. Among various arithmetic operations, finite field multiplication is of particular interest since it is a major building block for elliptic curve cryptosystems. In this paper, we present new techniques for efficient software implementation of binary field multiplication in normal basis. Our techniques are more efficient in terms of both speed and memory compared with alternative approaches. 1 Introduction Finite field arithmetic is becoming increasingly important in today's computer systems, particularly for implementing cryptographic operations. Among the more common finite fields in cryptography are odd-characteristic finite fields of degree 1 and even-characteristic finite fields of degree greater than 1. The latter is conventionally known as GF (2m) arithmetic or binary field arithmetic. GF (2m) arithmetic is further classified according to the choice of basis for representing elements of the finite field; two common choices are polynomial basis and normal basis. Fast implementation techniques for GF (2m) arithmetic have been studied intensively in the past twenty years. Among various arithmetic operations, GF (2m) multiplication has attracted most of the attention since it is a major building block for implementing elliptic curve cryptosystems. Depending on the choice of basis, the mathematical formula for a GF (2m) multiplication can be quite different, thus making major differences in practical implementation. Currently, it seems that normal basis representation (especially optimal normal basis) offers the best performance in hardware [9-11], while in software polynomial basis representation is more efficient [2, 3, 8].

Peng Ning; Yiqun Lisa Yin

2001-01-01T23:59:59.000Z

262

Late Light Curves of Normally-Luminous Type Ia Supernovae  

E-Print Network (OSTI)

The use of Type Ia supernovae as cosmological tools has reinforced the need to better understand these objects and their light curves. The light curves of Type Ia supernovae are powered by the nuclear decay of $^{56}Ni \\to ^{56}Co \\to ^{56}Fe$. The late time light curves can provide insight into the behavior of the decay products and their effect of the shape of the curves. We present the optical light curves of six "normal" Type Ia supernovae, obtained at late times with template image subtraction, and the fits of these light curves to supernova energy deposition models.

J. C. Lair; M. D. Leising; P. A. Milne; G. G. Williams

2006-01-05T23:59:59.000Z

263

Overview of the BlockNormal Event Trigger Generator  

E-Print Network (OSTI)

In the search for unmodeled gravitational wave bursts, there are a variety of methods that have been proposed to generate candidate events from time series data. Block Normal is a method of identifying candidate events by searching for places in the data stream where the characteristic statistics of the data change. These change-points divide the data into blocks in which the characteristics of the block are stationary. Blocks in which these characteristics are inconsistent with the long term characteristic statistics are marked as Event-Triggers which can then be investigated by a more computationally demanding multi-detector analysis.

J W C McNabb; M Ashley; L S Finn; E Rotthoff; A Stuver; T Summerscales; P Sutton; M Tibbits; K Thorne; K Zaleski

2004-04-29T23:59:59.000Z

264

Using a Family of Dividing Surfaces Normal to the Minimum EnergyPath for Quantum Instanton Rate Constants  

SciTech Connect

One of the outstanding issues in the quantum instanton (QI) theory (or any transition state-type theory) for thermal rate constants of chemical reactions is the choice of an appropriate ''dividing surface'' (DS) that separates reactants and products. (In the general version of the QI theory, there are actually two dividing surfaces involved.) This paper shows one simple and general way for choosing DS's for use in QI Theory, namely using the family of (hyper) planes normal to the minimum energy path (MEP) on the potential energy surface at various distances s along it. Here the reaction coordinate is not one of the dynamical coordinates of the system (which will in general be the Cartesian coordinates of the atoms), but rather simply a parameter which specifies the DS. It is also shown how this idea can be implemented for an N-atom system in 3d space in a way that preserves overall translational and rotational invariance. Numerical application to a simple system (the colliner H + H{sub 2} reaction) is presented to illustrate the procedure.

Li, Yimin; Miller, Wlliam H.

2006-02-22T23:59:59.000Z

265

Climatology of Sr-90 in Surface Air: A Simple Model using Diffusion and Scavenging  

Science Conference Proceedings (OSTI)

The evolution of Sr-90 distribution following an instantaneous stratospheric or tropospheric source in an annulus defined by latitude walls is investigated by means of a very simple model that uses 12 stratospheric and 12 tropospheric annular ...

D. O. Staley

1985-01-01T23:59:59.000Z

266

A Simple Method for Diagnosing the Bottom Current Field of the Worlds Oceans  

Science Conference Proceedings (OSTI)

A simple diagnostic method presented here uses the already well-known dynamics for large-scale, time-averaged circulation (i.e., depth-integrated vorticity balance or topographic Sverdrup balance) and takes into account the material conservation ...

Young-Hyang Park; Jean Michel Guernier

2001-04-01T23:59:59.000Z

267

A Mechanism and Simple Dynamical Model of the North Atlantic Oscillation and Annular Modes  

Science Conference Proceedings (OSTI)

A simple dynamical model is presented for the basic spatial and temporal structure of the large-scale modes of intraseasonal variability and associated variations in the zonal index. Such variability in the extratropical atmosphere is known to be ...

Geoffrey K. Vallis; Edwin P. Gerber; Paul J. Kushner; Benjamin A. Cash

2004-02-01T23:59:59.000Z

268

A Simple Physical Model to Estimate Incident Solar Radiation at the Surface from GOES Satellite Data  

Science Conference Proceedings (OSTI)

We present a model designed to estimate the incident solar radiation at the suface from GOES satellite brightness measurements in clear and cloudy conditions. In this simple physical model, the effect of Rayleigh scattering is taken into account. ...

Catherine Gautier; Georges Diak; Serge Masse

1980-08-01T23:59:59.000Z

269

A Simple Model of Evaporatively Driven Dowadraft: Application to Microburst Downdraft  

Science Conference Proceedings (OSTI)

A simple one-dimensional, time-dependent model of an evaporatively driven downdraft is presented. The model is described by equations for raindrop evaporation, raindrop concentration, water substance, thermodynamic energy and vertical air ...

R. C. Srivastava

1985-05-01T23:59:59.000Z

270

Simple yet efficient, transparent airtime allocation for TCP in wireless mesh networks  

Science Conference Proceedings (OSTI)

In this paper, we explore a simple yet effective technique for explicitly allocating airtime to each active pair of communicating neighbors in a wireless neighborhood so that TCP starvation in a wireless mesh network is avoided. Our explicit allocation ...

Ki-Young Jang; Konstantinos Psounis; Ramesh Govindan

2010-11-01T23:59:59.000Z

271

A simple, combinatorial algorithm for solving SDD systems in nearly-linear time  

E-Print Network (OSTI)

In this paper, we present a simple combinatorial algorithm that solves symmetric diagonally dominant (SDD) linear systems in nearly-linear time. It uses little of the machinery that previously appeared to be necessary for ...

Orecchia, Lorenzo

272

A Simple Scheme for Daytime Estimates of the Surface Fluxes from Routine Weather Data  

Science Conference Proceedings (OSTI)

In this paper a simple empirical scheme is presented, which gives hourly estimates of the surface fluxes of heat and momentum from routine weather data during daytime. The scheme is designed for grass surfaces, but it contains parameters which ...

A. A. M. Holtslag; A. P. Van Ulden

1983-04-01T23:59:59.000Z

273

A new simple ?OH neuron model as a biologically plausible principal component analyzer  

Science Conference Proceedings (OSTI)

A new approach to unsupervised learning in a single-layer neural network is discussed. An algorithm for unsupervised learning based upon the Hebbian learning rule is presented. A simple neuron model is analyzed. A dynamic neural model, which contains ...

M. V. Jankovic

2003-07-01T23:59:59.000Z

274

Tropical Climate Regimes and Global Climate Sensitivity in a Simple Setting  

Science Conference Proceedings (OSTI)

Multiple tropical climate regimes are found in an atmospheric general circulation model (AGCM) coupled to a global slab ocean when the model is forced by different values of globally uniform insolation. Even in this simple setting, convection ...

Joseph Barsugli; Sang-Ik Shin; Prashant D. Sardeshmukh

2005-04-01T23:59:59.000Z

275

A Simple Model of Climatological Rainfall and Vertical Motion Patterns over the Tropical Oceans  

Science Conference Proceedings (OSTI)

A simple model is developed that predicts climatological rainfall, vertical motion, and diabatic heating profiles over the tropical oceans given the sea surface temperature (SST), using statistical relationships deduced from the 40-yr ECMWF Re-...

Larissa E. Back; Christopher S. Bretherton

2009-12-01T23:59:59.000Z

276

Cloud-Resolving Model Simulations and a Simple Model of an Idealized Walker Cell  

Science Conference Proceedings (OSTI)

An idealized Walker cell with prescribed sea surface temperature (SST) and prescribed radiative cooling is studied using both a two-dimensional cloud-resolving model (CRM) and a simple conceptual model. In the CRM, for the same SST distribution, ...

Jonathan Wofsy; Zhiming Kuang

2012-12-01T23:59:59.000Z

277

A Simple Energy Model for the Harvesting and Leakage in a Supercapacitor  

E-Print Network (OSTI)

A Simple Energy Model for the Harvesting and Leakage in a Supercapacitor Aravind Kailas Dept.brunelli@disi.unitn.it Abstract--The modeling of energy storage devices such as supercapacitors for wireless sensor networks

Ingram, Mary Ann

278

Simple Procedures for Extrapolation of Humidity Variables in the Mountainous Western United States  

Science Conference Proceedings (OSTI)

A series of simple procedures are presented for extrapolating climatic averages of humidity variables from a reference location with long-term humidity measurements to nearby higher elevation locations. The extrapolation of monthly average ...

Kenneth E. Kunkel

1989-07-01T23:59:59.000Z

279

A Simple Method to Retrieve Cloud Properties from Atmospheric Transmittance and Liquid Water Column Measurements  

Science Conference Proceedings (OSTI)

A deeper knowledge of the effects and interactions of clouds in the climatic system requires developing both satellite and ground-based methods to assess their optical properties. A simple method based on a parameterized inversion of a radiative ...

Salvador Matamoros; Josep-Abel Gonzlez; Josep Calb

2011-02-01T23:59:59.000Z

280

Stable Near-Resonant States Forced by Orography in a Simple Baroclinic Model  

Science Conference Proceedings (OSTI)

Stationary equilibrium states induced by orography and zonal beating are calculated in a simple non-linear quasi-geostrophic baroclinic model. For a specific vector wavenumber and for sufficiently large orography, multiple equilibrium states are ...

John O. Roads

1980-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

A Simple Model of Climatological Rainfall and Vertical Motion Patterns over the Tropical Oceans  

E-Print Network (OSTI)

A simple model is developed that predicts climatological rainfall, vertical motion, and diabatic heating profiles over the tropical oceans given the sea surface temperature (SST), using statistical relationships deduced ...

Back, Larissa E.

282

Interhemispheric teleconnections from tropical heat sources in intermediate and simple models  

Science Conference Proceedings (OSTI)

The mechanisms that control the interhemispheric teleconnections from tropical heat sources are investigated using an intermediate complexity model (a Quasi-Equilibrium Tropical Circulation Model, QTCM) and a simple linear two-level model with dry ...

X. Ji; J. D. Neelin; S.-K. Lee; C. R. Mechoso

283

Axisymmetric Circulations Forced by Heat and Momentum Sources: A Simple Model Applicable to the Venus Atmosphere  

Science Conference Proceedings (OSTI)

The parametric behavior of an axially symmetric circulation induced by heat and momentum sources is analyzed in the context of a simple Boussinesq model. Implications for the Venus atmosphere are examined in the light of recent data.

Arthur Y. Hou

1984-12-01T23:59:59.000Z

284

Short-Range Forecasting and Nowcasting Using a Simple, Isentropic Prediction Model  

Science Conference Proceedings (OSTI)

The recent advancement of mini- and microcomputers into the local-work environment can provide local forecast offices with the capability to run simple numerical models for specific nowcasting and short-term forecast needs. While the capabilities ...

Ralph A. Petersen; Jeffrey H. Homan

1989-03-01T23:59:59.000Z

285

The Coupling of ESP-R and Genopt: A Simple Case Study  

E-Print Network (OSTI)

are available in the public ESP-r repository, future usersTHE COUPLING OF ESP-R AND GENOPT: A SIMPLE CASE STUDY Leenoptimization studies with ESP-r. To address this gap, this

Peeters, Leen

2010-01-01T23:59:59.000Z

286

Quantum Fisher Information: Variational principle and simple iterative algorithm for its efficient computation  

E-Print Network (OSTI)

We derive a new variational principle for the quantum Fisher information leading to a simple iterative alternating algorithm, the convergence of which is proved. The case of a fixed measurement, i.e. the classical Fisher information, is also discussed.

Katarzyna Macieszczak

2013-12-04T23:59:59.000Z

287

An Examination of Some Simple Numerical Schemes for Calculating Scalar Advection  

Science Conference Proceedings (OSTI)

The computational damping and dispersion errors of some simple numerical schemes for calculating the advection of a scalar are analyzed. Computation times and accuracy are compared in calculating the two-dimensional transport of a symmetrical ...

P. E. Long Jr.; D. W. Pepper

1981-02-01T23:59:59.000Z

288

Effects of MAC Approaches on Non-Monotonic Saturation with COPE - A Simple Case Study  

E-Print Network (OSTI)

We construct a simple network model to provide insight into network design strategies. We show that the model can be used to address various approaches to network coding, MAC, and multi-packet reception so that their effects ...

Cloud, Jason M.

289

A Simple Parameterization Scheme for Joint Statistics of Cloud Field Morphology and Physical Parameters  

Science Conference Proceedings (OSTI)

A simple parameterization scheme for the joint statistics of cloud field morphology and other cloud parameters is discussed. The statistics of the cloud field morphology an obtained from the NOAA-9 AVHRR using the Hit or Miss image ...

T. J. Davis

1990-08-01T23:59:59.000Z

290

Catalytic Addition of Simple Alkenes to Carbonyl Compounds by Use of Group 10 Metals  

E-Print Network (OSTI)

Recent advances using nickel complexes in the activation of unactivated monosubstituted olefins for catalytic intermolecular carbon-carbon bond-forming reactions with carbonyl compounds, such as simple aldehydes, isocyanates, ...

Ho, Chun-Yu

291

Linearization of a Simple Moist Convection Scheme for Large-Scale NWP Models  

Science Conference Proceedings (OSTI)

A simple Kuo-type convection scheme with an improved closure based on moist enthalpy accession (Kuo symmetric) has been linearized for the tangent-linear (TL) and adjoint (AD) versions of the Global Environmental Multiscale (GEM) model. The ...

Jean-Franois Mahfouf

2005-06-01T23:59:59.000Z

292

Structural Stochastic Stability of a Simple Auto-Oscillatory Climatic Feedback System  

Science Conference Proceedings (OSTI)

Based on a more detailed model developed previously, governing possible feedbacks between sea ice extent (?), deep-ocean temperature (?), and atmospheric carbon dioxide, we have constructed a simple, deterministic, dynamical system for ? and ? ...

Barry Saltzman; Alfonso Sutera; Alan Evenson

1981-03-01T23:59:59.000Z

293

Coupled OceanAtmosphere Dynamics in a Simple Midlatitude Climate Model  

Science Conference Proceedings (OSTI)

Midlatitude airsea interactions are investigated by coupling a stochastically forced two-layer quasigeostrophic channel atmosphere to a simple ocean model. The stochastic forcing has a large-scale standing pattern to simulate the main modes of ...

David Ferreira; Claude Frankignoul; John Marshall

2001-09-01T23:59:59.000Z

294

A Simple Biosphere Model (SIB) for Use within General Circulation Models  

Science Conference Proceedings (OSTI)

A simple but realistic biosphere model has been developed for calculating the transfer of energy, mass and momentum between the atmosphere and the vegetated surface of the earth. The model is designed for use in atmospheric general circulation ...

P. J. Sellers; Y. Mintz; Y. C. Sud; A. Dalcher

1986-03-01T23:59:59.000Z

295

Estimation of Meteorological Parameters for Air Quality Management: Coupling of Sodar Data with Simple Numerical Models  

Science Conference Proceedings (OSTI)

In this paper an attempt is made to couple sodar data and simple numerical models to calculate the wind field and the boundary layer parameters that are relevant to air quality monitoring and studies. For this purpose, a diagnostic, mass-...

Dimitrios Melas; Giulia Abbate; Dias Haralampopoulos; Alexandros Kelesidis

2000-04-01T23:59:59.000Z

296

A Simple Method for Determining the Standard Deviation of Wind Direction  

Science Conference Proceedings (OSTI)

The discontinuity of the wind direction at 360 complicates automatic calculations of some atmospheric parameters. Various methods were suggested to obtain the standard deviation of the wind direction (??). They are reviewed and a simple, once ...

D. Skibin

1984-03-01T23:59:59.000Z

297

A Simple Model of Nonlinear Hadley Circulation with an ITCZ: Analytic and Numerical Solutions  

Science Conference Proceedings (OSTI)

Simple analytic solutions are constructed for an axially symmetric, nonlinear, slightly viscous circulation in a Boussinesq atmosphere in the presence of intense convection at an intertropical convergence zone. The latitudeheight extent of the ...

Ming Fang; Ka Kit Tung

1996-05-01T23:59:59.000Z

298

Adjustment to Radiative Forcing in a Simple Coupled OceanAtmosphere Model  

Science Conference Proceedings (OSTI)

This study calculates the adjustment to radiative forcing in a simple model of a mixed layer ocean coupled to the overlying atmosphere. One application of the model is to calculate how dust aerosols perturb the temperature of the atmosphere and ...

R. L. Miller

2012-11-01T23:59:59.000Z

299

Interannual Positive Feedbacks in a Simple Extratropical AirSea Coupling System  

Science Conference Proceedings (OSTI)

A simple theoretical analysis identified three possible interannual positive feedbacks in the extratropics: the upwelling mode, the SST-Sverdrup mode, and the SST-evaporation mode. The upwelling mode becomes unstable when the atmosphere responses ...

Zhengyu Liu

1993-09-01T23:59:59.000Z

300

Unstable and Damped Equatorial Modes in Simple Coupled Ocean-Atmosphere Models  

Science Conference Proceedings (OSTI)

Free equatorial modes for several simple coupled ocean-atmosphere models are determined. They are found to include unstable and damped modes of large zonal scale and long period. The influence of ocean thermo-dynamics on unstable modal behavior ...

Anthony C. Hirst

1986-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

A Simple Parameterization of Cloud Water Related Variables for Use in Boundary Layer Models  

Science Conference Proceedings (OSTI)

A simple parameterization of cloud water related variables has been developed which can be used in meteorological models that use a prognostic equation for the turbulent kinetic energy. Based on the results of large-eddy simulations (LES), ...

J. W. M. Cuijpers; P. Bechtold

1995-07-01T23:59:59.000Z

302

Designing a simple, robust, precision robotic platform for medium quantity production  

E-Print Network (OSTI)

A niche which has yet to be saturated in the growing market of educational and research robotic platforms is the mechanically-simple, electronically-powerful research robot. Useful in fields such as algorithm and artificial ...

Lieberman, Janet Samantha

2007-01-01T23:59:59.000Z

303

Word Pro - S1.lwp  

Annual Energy Outlook 2012 (EIA)

Cooling Degree-Days by Census Division Census Divisions August Cumulative January through August Normal a 2012 2013 Percent Change Normal a 2012 2013 Percent Change Normal to 2013...

304

Structure and expression of the Huntington's disease gene: Evidence against simple inactivation due to an expanded CAG repeat  

SciTech Connect

Huntington's disease, a neurodegenerative disorder characterized by loss of striatal neurons, is caused by an expanded, unstable trinucleotide repeat in a novel 4p16.3 gene. To lay the foundation for exploring the pathogenic mechanism in HD, the authors have determined the structure of the disease gene and examined its expression. The HD locus spans 180 kb and consists of 67 exons ranging in size from 48 bp to 341 bp with an average of 138 bp. Scanning of the HD transcript failed to reveal any additional sequence alterations characteristic of HD chromosomes. A codon loss polymorphism in linkage disequilibrium with the disorder revealed that both normal and HD alleles are represented in the mRNA population in HD heterozygotes, indicating that the defect does not eliminate transcription. The gene is ubiquitously expressed as two alternatively polyadenylated forms displaying different relative abundance in various fetal and adult tissues, suggesting the operation of interacting factors in determining specificity of cell loss. The HD gene was disrupted in a female carrying a balanced translocation with a breakpoint between exons 40 and 41. The absence of any abnormal phenotype in this individual argues against simple inactivation of the gene as the mechanism by which the expanded trinucleotide repeat causes HD. Taken together, these observations suggest that the dominant HD mutation either confers a new property on the mRNA or, more likely, alters an interaction at the protein level.

Ambrose, C.M.; Duyao, M.P.; Barnes, G.; Lin, C.S.; Srinidhi, J. (Massachusetts General Hospital, Boston, MA (United States)); Bates, G.P.; Baxendale, S.; Hummerich, H.; Lehrach, H. (Imperial Cancer Research Fund, London (United Kingdom)); Altherr, M. (Univ. of California, Irving, CA (United States)) (and others)

1994-01-01T23:59:59.000Z

305

The Infrared Spectral Energy Distribution of Normal Star-Forming Galaxies: Calibration at Far-Infrared and Submillimeter Wavelengths  

E-Print Network (OSTI)

New far-infrared and submillimeter data are used to solidify and to extend to long wavelengths the empirical calibration of the infrared spectral energy distribution (SED) of normal star-forming galaxies. As was found by Dale et al. (2001), a single parameter family, characterized by f_nu(60 microns)/f_nu(100 microns), is adequate to describe the range of normal galaxy spectral energy distributions observed by IRAS and ISO from 3 to 100 microns. However, predictions based on the first generation models at longer wavelengths (122 to 850 microns) are increasingly overluminous compared to the data for smaller f_nu(60 microns)/f_nu(100 microns), or alternatively, for weaker global interstellar radiation fields. After slightly modifying the far-infrared/submillimeter dust emissivity in those models as a function of the radiation field intensity to better match the long wavelength data, a suite of SEDs from 3 microns to 20 cm in wavelength is presented. Results from relevant applications are also discussed, including submillimeter-based photometric redshift indicators, the infrared energy budget and simple formulae for recovering the bolometric infrared luminosity, and dust mass estimates in galaxies. Regarding the latter, since galaxy infrared SEDs are not well-described by single blackbody curves, the usual methods of estimating dust masses can be grossly inadequate. The improved model presented herein is used to provide a more accurate relation between infrared luminosity and dust mass.

Daniel A. Dale; George Helou

2002-05-06T23:59:59.000Z

306

Predictability of Linear Coupled Systems. Part II: An Application to a Simple Model of Tropical Atlantic Variability  

Science Conference Proceedings (OSTI)

A predictability analysis developed within a general framework of linear stochastic dynamics in a companion paper is applied to a simple coupled climate model of tropical Atlantic variability (TAV). The simple model extends the univariate ...

Ping Chang; R. Saravanan; Faming Wang; Link Ji

2004-04-01T23:59:59.000Z

307

Hard Sphere Dynamics for Normal and Granular Fluids  

E-Print Network (OSTI)

A fluid of N smooth, hard spheres is considered as a model for normal (elastic collisions) and granular (inelastic collisions) fluids. The potential energy is discontinuous for hard spheres so the pairwise forces are singular and the usual forms of Newtonian and Hamiltonian mechanics do not apply. Nevertheless, particle trajectories in the N particle phase space are well defined and the generators for these trajectories can be identified. The first part of this presentation is a review of the generators for the dynamics of observables and probability densities. The new results presented in the second part refer to applications of these generators to the Liouville dynamics for granular fluids. A set of eigenvalues and eigenfunctions of the generator for this Liouville dynamics is identified in a special "stationary representation". This provides a class of exact solutions to the Liouville equation that are closely related to hydrodynamics for granular fluids.

James W. Dufty; Aparna Baskaran

2005-03-08T23:59:59.000Z

308

The theory of normal zone propagation in superconductors  

E-Print Network (OSTI)

This paper contains a study of properties of stable normal (N) regions of finite size-resistive domains (R.D.), in superconductors (S) with transport current I. It is demonstra-ted that in homogeneous superconductors R.D. are moving due to thermoelectric effect (Thom-son heat) while the rate of R.D., vdi for dif-ferent materials ranges from 1 to 10 cm/s. It is also shown that the thermoelectric effect leads to asymmetry i n the rate of the N-S boundary av, relative to the direction of I, with AV N vd. The conditions for localizing R.D. in an inhomogeneous superconductor have been obtained, as well as the I-V characteric-tics of a sample with R.D. Hysteresis effects are discussed associated with the localization of R.D and the thermoelectric effect. 1.

A. V. Gurevich; R. G. Mints

1981-01-01T23:59:59.000Z

309

Normal heat conductivity in chains capable of dissociation  

E-Print Network (OSTI)

The paper suggests a resolution for recent controversy over convergence of heat conductivity in one-dimensional chains with asymmetric nearest-neighbor potential. We conjecture that the convergence is promoted not by the mere asymmetry of the potential, but due to ability of the chain to dissociate. In other terms, the attractive part of the potential function should approach a finite value as the distance between the neighbors grows. To clarify this point, we study the simplest model of this sort -- a chain of linearly elastic disks with finite diameter. If the distance between the disk centers exceeds their diameter, the disks cease to interact. Formation of gaps between the disks is the only possible mechanism for scattering of the oscillatory waves. Heat conduction in this system turns out to be convergent. Moreover, an asymptotic behavior of the heat conduction coefficient for the case of large densities and relatively low temperatures obeys simple Arrhenius-type law. In the limit of low densities, the h...

Gendelman, O V

2013-01-01T23:59:59.000Z

310

Correlation among electronegativity, cation polarizability, optical basicity and single bond strength of simple oxides  

SciTech Connect

A suitable relationship between free-cation polarizability and electronegativity of elements in different valence states and with the most common coordination numbers has been searched on the basis of the similarity in physical nature of both quantities. In general, the cation polarizability increases with decreasing element electronegativity. A systematic periodic change in the polarizability against the electronegativity has been observed in the isoelectronic series. It has been found that generally the optical basicity increases and the single bond strength of simple oxides decreases with decreasing the electronegativity. The observed trends have been discussed on the basis of electron donation ability of the oxide ions and type of chemical bonding in simple oxides. - Graphical abstract: This figure shows the single bond strength of simple oxides as a function of element electronegativity. A remarkable correlation exists between these independently obtained quantities. High values of electronegativity correspond to high values of single bond strength and vice versa. It is obvious that the observed trend in this figure is closely related to the type of chemical bonding in corresponding oxide. Highlights: Black-Right-Pointing-Pointer A suitable relationship between free-cation polarizability and electronegativity of elements was searched. Black-Right-Pointing-Pointer The cation polarizability increases with decreasing element electronegativity. Black-Right-Pointing-Pointer The single bond strength of simple oxides decreases with decreasing the electronegativity. Black-Right-Pointing-Pointer The observed trends were discussed on the basis of type of chemical bonding in simple oxides.

Dimitrov, Vesselin, E-mail: vesselin@uctm.edu [Department of Silicate Technology, University of Chemical Technology and Metallurgy, 8, Kl. Ohridski Blvd., Sofia 1756 (Bulgaria)] [Department of Silicate Technology, University of Chemical Technology and Metallurgy, 8, Kl. Ohridski Blvd., Sofia 1756 (Bulgaria); Komatsu, Takayuki, E-mail: komatsu@mst.nagaokaut.ac.jp [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)] [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)

2012-12-15T23:59:59.000Z

311

Solar So Simple It Is Just a Click Away | Department of Energy  

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

Solar So Simple It Is Just a Click Away Solar So Simple It Is Just a Click Away Solar So Simple It Is Just a Click Away May 6, 2013 - 10:00am Addthis Incubator 6 awardee Sun Number converts complex aerial data into an easy-to-understand solar suitability score ranging from 1 to 100, with 100 being the ideal rooftop for solar. | Photo courtesy of Sun Number. Incubator 6 awardee Sun Number converts complex aerial data into an easy-to-understand solar suitability score ranging from 1 to 100, with 100 being the ideal rooftop for solar. | Photo courtesy of Sun Number. Minh Le Minh Le Program Manager, Solar Program Interested in going solar? Check out Energy Saver to find out which solar system might be right for your home. Gone are the days when consumers had to wonder if they could put solar panels on their home, whether they were getting the best deal on their

312

A Simple Heat-Flow Quality Function And Appraisal Of Heat-Flow Measurements  

Open Energy Info (EERE)

Simple Heat-Flow Quality Function And Appraisal Of Heat-Flow Measurements Simple Heat-Flow Quality Function And Appraisal Of Heat-Flow Measurements And Heat-Flow Estimates From The Uk Geothermal Catalogue Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Simple Heat-Flow Quality Function And Appraisal Of Heat-Flow Measurements And Heat-Flow Estimates From The Uk Geothermal Catalogue Details Activities (0) Areas (0) Regions (0) Abstract: A comprehensive database of temperature, heat flow, thermal conductivity and geochemistry is the basis of geothermal modelling. The latest revision (1987) of the UK Geothermal Catalogue (UKGC) contains over 2600 temperatures at over 1150 sites and over 200 observations of heat flow. About 93% of the temperature data are from depths less than 2000 m and about 50% are Bottom Hole Temperatures (BHT). Heat-flow density

313

Simple Interactive Models for better air quality (SIM-air) | Open Energy  

Open Energy Info (EERE)

Simple Interactive Models for better air quality (SIM-air) Simple Interactive Models for better air quality (SIM-air) Jump to: navigation, search Tool Summary Name: Simple Interactive Models (SIM-air) Agency/Company /Organization: UrbanEmissions.info Sector: Climate, Energy User Interface: Desktop Application Complexity/Ease of Use: Moderate Website: urbanemissions.info/model-tools/sim-air.html Cost: Free Related Tools Tool for Selecting CDM Methods & Technologies ProForm Environmental Impact and Sustainability Applied General Equilibrium Model (ENVISAGE) ... further results Find Another Tool FIND DEVELOPMENT IMPACTS ASSESSMENT TOOLS A set of software-based integrated air pollution analysis tools that illustrate how cities in developing countries, despite the informational, institutional and infrastructural limitations they face, can begin to

314

Marine Microbial Ecosystems: Not as Simple as Once Thought | U.S. DOE  

Office of Science (SC) Website

Marine Microbial Ecosystems: Not as Simple as Once Thought Marine Microbial Ecosystems: Not as Simple as Once Thought Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) News & Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3251 F: (301) 903-5051 E: sc.ber@science.doe.gov More Information » October 2012 Marine Microbial Ecosystems: Not as Simple as Once Thought Low abundance microbes may do more than their share of carbon cycling in the ocean. Print Text Size: A A A Subscribe FeedbackShare Page

315

A simple method of estimating wind turbine blade fatigue at potential wind turbine sites  

SciTech Connect

This paper presents a technique of estimating blade fatigue damage at potential wind turbine sites. The cornerstone of this technique is a simple model for the blade`s root flap bending moment. The model requires as input a simple set of wind measurements which may be obtained as part of a routine site characterization study. By using the model to simulate a time series of the root flap bending moment, fatigue damage rates may be estimated. The technique is evaluated by comparing these estimates with damage estimates derived from actual bending moment data; the agreement between the two is quite good. The simple connection between wind measurements and fatigue provided by the model now allows one to readily discriminate between damaging and more benign wind environments.

Barnard, J.C.; Wendell, L.L.

1995-06-01T23:59:59.000Z

316

A simple model for radial expansion reactivity in LMRs (liquid metal reactors)  

Science Conference Proceedings (OSTI)

Presented in this report is a simple analytical model developed for evaluating the radial expansion reactivity in small modular liquid metal reactors (LMRs). The present model is based on a non-leakage representation of the effective neutron multiplication factor. The resultant analytical expression for the radial expansion reactivity is simple and can be used directly in a system code for safety analyses. Applications of the present model to PRISM and SAFR resulted in a good agreement with the values reported by vendors. This agreement establishes that the large negative reactivity insertion resulting from LMR core radial expansion can be confirmed using a simple analytical approach, and thus is important in the current effort to evaluate the reactor inherent feedbacks for the PRISM and SAFR designs.

Cheng, H.S.; Van Tuyle, G.J.

1988-01-01T23:59:59.000Z

317

Sampling Plan for Assaying Plates Containing Depleted or Normal Uranium  

Science Conference Proceedings (OSTI)

This paper describes the rationale behind the proposed method for selecting a 'representative' sample of uranium metal plates, portions of which will be destructively assayed at the Y-12 Security Complex. The total inventory of plates is segregated into two populations, one for Material Type 10 (depleted uranium (DU)) and one for Material Type 81 (normal [or natural] uranium (NU)). The plates within each population are further stratified by common dimensions. A spreadsheet gives the collective mass of uranium element (and isotope for DU) and the piece count of all plates within each stratum. These data are summarized in Table 1. All plates are 100% uranium metal, and all but approximately 60% of the NU plates have Kel-F{reg_sign} coating. The book inventory gives an overall U-235 isotopic percentage of 0.22% for the DU plates, ranging from 0.19% to 0.22%. The U-235 ratio of the NU plates is assumed to be 0.71%. As shown in Table 1, the vast majority of the plates are comprised of depleted uranium, so most of the plates will be sampled from the DU population.

Ivan R. Thomas

2011-11-01T23:59:59.000Z

318

Standard Test Method for Normal Spectral Emittance at Elevated Temperatures  

E-Print Network (OSTI)

1.1 This test method describes a highly accurate technique for measuring the normal spectral emittance of electrically conducting materials or materials with electrically conducting substrates, in the temperature range from 600 to 1400 K, and at wavelengths from 1 to 35 ?m. 1.2 The test method requires expensive equipment and rather elaborate precautions, but produces data that are accurate to within a few percent. It is suitable for research laboratories where the highest precision and accuracy are desired, but is not recommended for routine production or acceptance testing. However, because of its high accuracy this test method can be used as a referee method to be applied to production and acceptance testing in cases of dispute. 1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this stan...

American Society for Testing and Materials. Philadelphia

1972-01-01T23:59:59.000Z

319

Modeling pore corrosion in normally open gold- plated copper connectors.  

SciTech Connect

The goal of this study is to model the electrical response of gold plated copper electrical contacts exposed to a mixed flowing gas stream consisting of air containing 10 ppb H{sub 2}S at 30 C and a relative humidity of 70%. This environment accelerates the attack normally observed in a light industrial environment (essentially a simplified version of the Battelle Class 2 environment). Corrosion rates were quantified by measuring the corrosion site density, size distribution, and the macroscopic electrical resistance of the aged surface as a function of exposure time. A pore corrosion numerical model was used to predict both the growth of copper sulfide corrosion product which blooms through defects in the gold layer and the resulting electrical contact resistance of the aged surface. Assumptions about the distribution of defects in the noble metal plating and the mechanism for how corrosion blooms affect electrical contact resistance were needed to complete the numerical model. Comparisons are made to the experimentally observed number density of corrosion sites, the size distribution of corrosion product blooms, and the cumulative probability distribution of the electrical contact resistance. Experimentally, the bloom site density increases as a function of time, whereas the bloom size distribution remains relatively independent of time. These two effects are included in the numerical model by adding a corrosion initiation probability proportional to the surface area along with a probability for bloom-growth extinction proportional to the corrosion product bloom volume. The cumulative probability distribution of electrical resistance becomes skewed as exposure time increases. While the electrical contact resistance increases as a function of time for a fraction of the bloom population, the median value remains relatively unchanged. In order to model this behavior, the resistance calculated for large blooms has been weighted more heavily.

Battaile, Corbett Chandler; Moffat, Harry K.; Sun, Amy Cha-Tien; Enos, David George; Serna, Lysle M.; Sorensen, Neil Robert

2008-09-01T23:59:59.000Z

320

Extraction of erythropoietin from normal kidneys. [Rats, dogs  

SciTech Connect

Significant amounts of active erythropoietin were extracted from the kidneys of normal rats, cattle, dogs, and rabbits by homogenization of the organs in 0.1 M phosphate buffer. The mean erythropoietin activities of the extracts, as determined by the starved-rat assay, were 0.26 U/g beef kidney, 0.41 U/g dog kidney, and 0.11 U/g rat kidney. The dog kidney extracts had a mean activity of 0.35 U/g, as measured by stimulation of hemoglobin synthesis in cultured bone marrow cells (in vitro assay) and produced a dose-dependent stimulation of /sup 59/Fe incorporation into circulating red cells when assayed in polycythemic mice. Extracts of rabbit kidney cortices had a mean activity of 2.12 U/g, as measured by stimulation of hemoglobin synthesis in cultured bone marrow cells. When the dog kidney homogenate was fractionated on DEAE-cellulose, all of the erythropoietin activity was adsorbed to the exchanger in the presence of 0.01 M acetate buffer, pH 4.5, and was completely eluted by 0.1 M Na/sub 2/HPO/sub 4/-0.5 M NaCl, pH 8. An antibody made aganist human urinary erythropoietin completely inactivated the erythropoietic factor in the dog kidney extract. Serum from a donor dog had no erythropoietin activity when assayed in the starved rat, suggesting that the factor in the extracts is intracellular erythropoietin rather than that contained in plasma trapped in the renal vasculature. The complete inactivation of the erythropoietic factor in these kidney homogenates by antierythropoietin and its behavior on DEAE-cellulose indicate that this factor is structurally similar to native plasma erythropoietin. The extracts are completely active without being incubated in the presence of serum.

Sherwood, J.B.; Goldwasser, E.

1978-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Stokes' Cradle: Normal Three-Body Collisions between Wetted Particles  

E-Print Network (OSTI)

In this work, a combination of experiments and theory is used to investigate three-body, normal collisions between solid particles with a liquid coating (i.e., "wetted" particles). Experiments are carried out using a Stokes' cradle, an apparatus inspired by the Newton's cradle desktop toy except with wetted particles. Unlike previous work on two-body systems, which may either agglomerate or rebound upon collision, four outcomes are possible in three-body systems: fully agglomerated, Newton's cradle (striker and target particle it strikes agglomerate), reverse Newton's cradle (targets agglomerate while striker separates), and fully separated. Post-collisional velocities are measured over a range of parameters. For all experiments, as the impact velocity increases, the progression of outcomes observed is fully agglomerated, reverse Newton's cradle, and fully separated. Notably, as the viscosity of the oil increases, experiments reveal a decrease in the critical Stokes number (the Stokes number that demarcates a transition from agglomeration to separation) for both sets of adjacent particles. A scaling theory is developed based on lubrication forces and particle deformation and elasticity. Unlike previous work for two-particle systems, two pieces of physics are found to be critical in the prediction of a regime map that is consistent with experiments: (i) an additional resistance upon rebound of the target particles due to the pre-existing liquid bridge between them (which has no counterpart in two-particle collisions), and (ii) the addition of a rebound criterion due to glass transition of the liquid layer at high pressure between colliding particles.

C. M. Donahue; C. M. Hrenya; R. H. Davis; K. J. Nakagawa; A. P. Zelinskaya; G. G. Joseph

2009-12-18T23:59:59.000Z

322

Large-Scale Diurnal Variations of Tropical Cold Cloudiness Based on a Simple Cloud Indexing Method  

Science Conference Proceedings (OSTI)

Diurnal variations of cold cloudiness during a 2-year period (October 1985September 1987) over the tropical arm covered by Meteosat (from 23N to 23S and from 60E to 60W) are studied using a simple precipitation index based on infrared data ...

Wassila Thiao; Olli M. Turpeinen

1992-02-01T23:59:59.000Z

323

Simple model for decay of superdeformed nuclei C. A. Stafford and B. R. Barrett  

E-Print Network (OSTI)

Simple model for decay of superdeformed nuclei C. A. Stafford and B. R. Barrett Physics Department, and the dynamics are overdamped. As RAPID COMMUNICATIONS C. A. STAFFORD AND B. R. BARRETT PHYSICAL REVIEW C 60. Fisher, A. Garg, and W. Zwerger, Rev. Mod. Phys. 59, 1 1987 . 10 C. A. Stafford and N. S. Wingreen, Phys

Stafford, Charles

324

Theory of Metastability in Simple Metal Nanowires J. Burki, C. A. Stafford, and D. L. Stein  

E-Print Network (OSTI)

Theory of Metastability in Simple Metal Nanowires J. Bu¨rki, C. A. Stafford, and D. L. Stein. Stafford, H. Grabert, and R. E. Goldstein, Nonlinearity 14, 167 (2001). [9] C.-H. Zhang, F. Kassubek, and C. A. Stafford, Phys. Rev. B 68, 165414 (2003). [10] J. Bu¨rki, R. E. Goldstein, and C. A. Stafford

Stafford, Charles

325

A Simple Model of the Decadal Response of the Ocean to Stochastic Wind Forcing  

Science Conference Proceedings (OSTI)

A simple linear model is used to estimate the decadal response of the extratropical ocean to wind stress forcing, assuming a flat bottom, a mean state at rest, and no dissipation. The barotropic fields are governed by a time-dependent Sverdrup ...

Claude Frankignoul; Peter Mller; Eduardo Zorita

1997-08-01T23:59:59.000Z

326

A Simple Strategy for Optimal Operation of Heat Exchanger V. LERSBAMRUNGSUK1  

E-Print Network (OSTI)

A Simple Strategy for Optimal Operation of Heat Exchanger Networks V. LERSBAMRUNGSUK1 , S for optimal operation of heat exchanger networks. Optimal operation in this context requires that 1) all of heat exchanger networks are analyzed and used to identify if the operation is structurally feasible

Skogestad, Sigurd

327

A Simple Model of the Lagrangian-Mean Flow Produced by Dissipating Planetary Waves  

Science Conference Proceedings (OSTI)

A simple equation for the Lagrangian-mean flow induced by damped planetary waves is derived. The flow computed for stationary planetary waves of a ?-plane is found to be generally poleward and downward during winter and appears to be about twice ...

Mark R. Schoeberl

1981-09-01T23:59:59.000Z

328

Carbon Footprint and the Management of Supply Chains: Insights from Simple Models  

E-Print Network (OSTI)

Carbon Footprint and the Management of Supply Chains: Insights from Simple Models Saif Benjaafar1, we illustrate how carbon emission concerns could be integrated into operational decision-making with regard to procurement, production, and inventory management. We show how, by associating carbon emission

Benjaafar, Saifallah

329

Testing the Simple Biosphere Model (SiB) Using Point Micrometeorological and Biophysical Data  

Science Conference Proceedings (OSTI)

The Simple Biosphere model (SiB) of Sellers et al. (1986) was designed for use within General Circulation Models (GCMs) of the earth's atmosphere. The main objective of SiB is to provide a biophysically realistic description of those processes ...

P. J. Sellers; J. L. Dorman

1987-05-01T23:59:59.000Z

330

A simple model for evolution of proteins towards the global minimum of free energy  

E-Print Network (OSTI)

A simple model for evolution of proteins towards the global minimum of free energy Tamar Kaffe-Abramovich and Ron Unger Background: Proteins seem to have their native structure in a global minimum of free energy is in the global minimum of free energy. The aim of this study is to investigate such evolutionary processes

Unger, Ron

331

Firing sequences backward algorithm for simple assembly line balancing problem of type 1  

Science Conference Proceedings (OSTI)

The objective of simple assembly line balancing problem type-1 (SALBP-1) is to minimize the number of workstations on an assembly line for a given cycle time. Since SALBP-1 is NP-hard, many iterative backtracking heuristics based on branch and bound ... Keywords: Assembly line balancing, Heuristics, Petri net, SALBP-1

Ozcan Kilincci

2011-05-01T23:59:59.000Z

332

A Simple Statistical-Synoptic Track Prediction Technique for Western North Pacific Tropical Cyclones  

Science Conference Proceedings (OSTI)

A simple statistical-synoptic technique for tropical cyclone (TC) track forecasting to 72 h in the western North Pacific is derived. This technique applies to the standard (S) pattern/dominant ridge region (S/DR) and poleward/poleward-oriented (P/...

Jeng-Ming Chen; Russell L. Elsberry; Mark A. Boothe; Lester E. Carr III

1999-01-01T23:59:59.000Z

333

A Simple Atmospheric Model of Surface Heat Flux for Use in Ocean Modeling Studies  

Science Conference Proceedings (OSTI)

A simple model of the lower atmospheric layers and land/sea ice surface is described and analyzed. The model is able to depict with reasonable accuracy the global ocean heat fluxes. Due to the model's simplicity, insight into the mechanisms ...

Richard Kleeman; Scott B. Power

1995-01-01T23:59:59.000Z

334

A simple self-adaptive Differential Evolution algorithm with application on the ALSTOM gasifier  

Science Conference Proceedings (OSTI)

Differential Evolution (DE) has gathered a reputation for being a powerful yet simple global optimiser with continually outperforming many of the already existing stochastic and direct search global optimisation techniques. It is however well established ... Keywords: Differential Evolution, Evolutionary computing, Gasifier control, Multivariable control

Amin Nobakhti; Hong Wang

2008-01-01T23:59:59.000Z

335

Simple SQP approach for out-of-plane loaded homogenized brickwork panels, accounting for softening  

Science Conference Proceedings (OSTI)

A simple homogenized model for the non linear analysis of masonry walls out-of-plane loaded is presented. In the model, the panels are assumed to behave as Kirchhoff-Love plates. A rectangular running bond elementary cell (RVE) is subdivided into several ... Keywords: Homogenization, Masonry, Out-of-plane loads, Quadratic programming

Gabriele Milani; Antonio Tralli

2011-01-01T23:59:59.000Z

336

Very simple, carbuncle-free, boundary-layer-resolving, rotated-hybrid Riemann solvers  

Science Conference Proceedings (OSTI)

In this paper, we propose new Euler flux functions for use in a finite-volume Euler/Navier-Stokes code, which are very simple, carbuncle-free, yet have an excellent boundary-layer-resolving capability, by combining two different Riemann solvers into ... Keywords: Carbuncle, Hybrid schemes, Rotated Riemann solvers, Shock instability, Upwind schemes

Hiroaki Nishikawa; Keiichi Kitamura

2008-02-01T23:59:59.000Z

337

A Simple Biomass-Based Length-Cohort Analysis for Estimating Biomass and Fishing Mortality  

E-Print Network (OSTI)

A Simple Biomass-Based Length-Cohort Analysis for Estimating Biomass and Fishing Mortality CHANG IK, Washington 98115, USA Abstract.--A biomass-based length-cohort analysis (LCA) was examined for its performance in estimating total stock biomass and fishing mortality (F) for a population in equilibrium. We

338

Simple Position Estimation for Wireless Sensor Networks Toks Adebutu Lionel Sacks Ian Marshall  

E-Print Network (OSTI)

the cost, power and processing constraints of these networks. This paper presents a solution and due to the cost, power and size constraints it is not possible to equip them with a sophisticatedSimple Position Estimation for Wireless Sensor Networks Toks Adebutu Lionel Sacks Ian Marshall

Haddadi, Hamed

339

Sea Surface Temperatures Computed by a Simple Ocean Mixed Layer Coupled to an Atmospheric GCM  

Science Conference Proceedings (OSTI)

An ocean mixed layer with fixed depth (50 m) is coupled to a global atmospheric general circulation model (GCM). The mixed layer is a simple slab that allows for seasonal heat storage but has no dynamics (advection or diffusion). The an surface ...

Gerald A. Meehl; Warren M. Washington

1985-01-01T23:59:59.000Z

340

Observations of a Drainage Flow Event on a High-Altitude Simple Slope  

Science Conference Proceedings (OSTI)

Observations of a drainage flow event on a high-altitude simple slope were made for a few hours during a five-day field study that was otherwise characterized by high and gusty winds blowing across the face of the slope believed due to the ...

William E. Clements; Carmen J. Nappo

1983-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Correlation between the Kolmogorov-Sinai entropy and the self-diffusion coefficient in simple liquids  

E-Print Network (OSTI)

of chaos present in dynamical systems, have been exten- sively investigated for simple fluids through for 1 106 time steps corresponding to 103 time units to evaluate static and dynamic properties. Energy studies show that simulation B cannot generate the fluid phase for 0.9 with N 32 due to the periodic

Lee, EokKyun

342

A Reanalysis of Ocean Climate Using Simple Ocean Data Assimilation (SODA)  

Science Conference Proceedings (OSTI)

This paper describes the Simple Ocean Data Assimilation (SODA) reanalysis of ocean climate variability. In the assimilation, a model forecast produced by an ocean general circulation model with an average resolution of 0.25 0.4 40 levels is ...

James A. Carton; Benjamin S. Giese

2008-08-01T23:59:59.000Z

343

A Simple Formula for Estimation of the Roughness Length for Heat Transfer over Partly Vegetated Surfaces  

Science Conference Proceedings (OSTI)

A simple formula for computation of the effective roughness length z0Heff for heat transfer or rather for the parameter kB?1eff [=ln(z0Meff/z0Heff) with z0Meff = roughness length for momentum], which are needed in single-source models for evaluating ...

K. Blmel

1999-06-01T23:59:59.000Z

344

A simple and versatile micro contact printing method for generating carbon nanotubes patterns on various substrates  

Science Conference Proceedings (OSTI)

We present an optimized process for generating at low cost, patterns of carbon nanotubes (CNTs) on a large variety of substrates through a simple micro contact printing method. This method meets the requirements for the integration of CNTs into microdevices, ... Keywords: Carbon nanotubes, Flexible electronics, Micro-patterning, Soft-lithography, Spray-coating

A. BDuer; F. Seichepine; E. Flahaut; C. Vieu

2012-09-01T23:59:59.000Z

345

Online fuzzy identification for an intelligent controller based on a simple platform  

Science Conference Proceedings (OSTI)

The paper presents the identification issues of the self-tuning nonlinear controller ASPECT (Advanced control algorithmS for ProgrammablE logiC conTrollers). The controller is implemented on a simple PLC platform with an extra mathematical coprocessor, ... Keywords: Fuzzy identification, Nonlinear control systems, Online learning, Programmable controllers, pH neutralisation process

Sao Blai?; Igor krjanc; Samo Gerki?; Gregor Dolanc; Stanko Strm?nik; Mincho B. Hadjiski; Anna Stathaki

2009-06-01T23:59:59.000Z

346

Predicting daily streamflow using rainfall forecasts, a simple loss module and unit hydrographs: Two Brazilian catchments  

Science Conference Proceedings (OSTI)

The performance of a simple, spatially-lumped, rainfall-streamflow model is compared with that of a more complex, spatially-distributed model. In terms of two model-fit statistics it is shown that for two catchments in Brazil (about 30,000km^2 and 34,000km^2) ... Keywords: Brazil, Hydropower, Rainfall forecasts, River Paran, Streamflow forecasts, Unit hydrographs

I. G. Littlewood; R. T. Clarke; W. Collischonn; B. F. W. Croke

2007-09-01T23:59:59.000Z

347

Simple synthesis and growth mechanism of core/shell cdse/SiOx nanowires  

Science Conference Proceedings (OSTI)

Core-shell-structured CdSe/SiOx nanowires were synthesized on an equilateral triangle Si (111) substrate through a simple one-step thermal evaporation process. SEM, TEM, and XRD investigations confirmed the core-shell structure; that is, the ...

Guozhang Dai; Shengyi Yang; Min Yan; Qiang Wan; Qinglin Zhang; Anlian Pan; Bingsuo Zou

2010-01-01T23:59:59.000Z

348

Affine invariant matching of broken boundaries based on simple genetic algorithm and contour reconstruction  

Science Conference Proceedings (OSTI)

Viewpoint independent identification of fragmented object contours can be accomplished by matching them against a collection of known reference models. For the class of near-planar objects, the matching process can be posed as the search for the existence ... Keywords: Affine invariant matching, Contour reconstruction, Fragmented contours, Migrant principle, Quality migrants, Simple genetic algorithm

P. W. M. Tsang; W. C. Situ

2010-07-01T23:59:59.000Z

349

A Simple Technique for Simultaneous Suspension of Multiple Drops in a Small Vertical Wind Tunnel  

Science Conference Proceedings (OSTI)

A simple technique is described by which multiple millimeter-size water drops can be simultaneously suspended in an air stream above the test section of a 12 12 cm cross section of a vertical wind tunnel. Horizontal profiles of the vertical air ...

A. K. Kamra; D. V. Ahire

1985-09-01T23:59:59.000Z

350

Simple Adjoint Methods for Single-Doppler Wind Analysis with a Strong Constraint of Mass Conservation  

Science Conference Proceedings (OSTI)

Three schemes are developed to incorporate a strong constraint of (incompressible) mass conservation into the basic scheme (scheme B) of the simple adjoint method of Qiu and Xu for retrieving the time-mean wind field from a sequence of single-...

Qin Xu; Chong-Jian Qiu

1994-04-01T23:59:59.000Z

351

A method for computing the generating function of the characters of simple Lie algebras  

E-Print Network (OSTI)

We describe a general method, based on elementary considerations, to obtain the generating functions of the characters of simple Lie algebras. We show how the method works by means of a few examples involving some low rank classical algebras. As an application, we compute several generating functions for the weight multiplicities of the irreducible representations of these algebras.

J. Fernndez Nez; W. Garca Fuertes; A. M. Perelomov

2013-04-26T23:59:59.000Z

352

Simple catalytic cell for restoring He leak detector sensitivity on vacuum systems with high D{sub 2} backgrounds  

SciTech Connect

The DIII{endash}D National Fusion Facility at General Atomics (GA) focuses on plasma physics and fusion energy science. The DIII{endash}D tokamak is a 35 m{sup 3} toroidal vacuum vessel with over 200 ports for diagnostic instrumentation, cryogenics, microwave heating, and four large neutral beam injectors. Maintaining vacuum in the 10{sup {minus}8}&hthinsp;Torr range is crucial for producing high performance plasma discharges. He leak checking the DIII{endash}D tokamak and the neutral beamlines has historically been difficult. D{sub 2} is used as the fuel gas in most plasma discharges and neutral beams. After plasma operations, D{sub 2} outgassing from the torus walls and internal beamline components can exceed 10{sup {minus}4}&hthinsp;std&hthinsp;cm{sup 3}/s. The mass of the D{sub 2} molecule (4.028 u) is indistinguishable from that of the He atom (4.003 u) to a standard mass spectrometer leak detector. High levels of D{sub 2} reduce leak detector sensitivity and effectively mask the He trace gas signal rendering normal leak checking techniques ineffective. A simple apparatus was developed at GA to address these problems. It consists of a palladium based catalyst cell and associated valves and piping placed in series with the leak detector. This reduces the D{sub 2} throughput by a factor greater than 10&hthinsp;000, restoring leak detector sensitivity. This article will briefly discuss the development of the cell, the physical processes involved, the tests performed to quantify and optimize the processes, and the operational results at DIII{endash}D. {copyright} {ital 1999 American Vacuum Society.}

Busath, J.; Chiu, H.K. [General Atomics, San Diego, California 92186-5608 (United States)

1999-07-01T23:59:59.000Z

353

Simple catalytic cell for restoring He leak detector sensitivity on vacuum systems with high D{sub 2} backgrounds  

SciTech Connect

The DIII-D National Fusion Facility at General Atomics focuses on plasma physics and fusion energy science. The DIII-D tokamak is a 35 m{sup 3} toroidal vacuum vessel with over 200 ports for diagnostic instrumentation, cryogenics, microwave heating, and four large neutral beam injectors. Maintaining vacuum in the 10{sup {minus}8} Torr range is crucial for producing high performance plasma discharges. He leak checking the DIII-D tokamak and the neutral beamlines has historically been difficult. D{sub 2} is used as the fuel gas in most plasma discharges and neutral beams. After plasma operations, D{sub 2} out-gassing from the torus walls and internal beamline components can exceed 10{sup {minus}4} std cc/s. The mass of the D{sub 2} molecule (4.028 u) is indistinguishable from that of the He atom (4.003 u) to a standard mass spectrometer leak detector. High levels of D{sub 2} reduce leak detector sensitivity and effectively mask the He trace gas signal rendering normal leak checking techniques ineffective. A simple apparatus was developed at GA to address these problems. It consists of a palladium based catalyst cell and associated valves and piping placed in series with the leak detector. This reduces the D{sub 2} throughput by a factor greater than 10,000, restoring leak detector sensitivity. This paper will briefly discuss the development of the cell, the physical processes involved, the tests performed to quantify and optimize the processes, and the operational results at DIII-D.

Busath, J.; Chiu, H.K.

1998-12-01T23:59:59.000Z

354

A novel method for testing normality in a mixed model of a nested classification  

Science Conference Proceedings (OSTI)

Normality is one of the most common assumptions made in the development of statistical models such as the fixed effect model and the random effect model. White and MacDonald [1980. Some large-sample tests for normality in the linear regression model. ... Keywords: Normality test, Random effect model, Shapiro-Wilk test, Simulations, Skewness test, Transformation

Yi-Ting Hwang; Peir Feng Wei

2006-11-01T23:59:59.000Z

355

TRENDS IN DIRECT NORMAL SOLAR IRRADIANCE IN OREGON FROM 1979-2003 Laura Riihimaki  

E-Print Network (OSTI)

TRENDS IN DIRECT NORMAL SOLAR IRRADIANCE IN OREGON FROM 1979-2003 Laura Riihimaki Frank Vignola of trends in direct normal irradiance from three sites around Oregon over a period of 25 years. An overall. Changes in clear noon values are also examined. This article analyzes direct normal data unlike other

Oregon, University of

356

Parabolic geometries and normal Weyl structures First BGG operators and special solutions  

E-Print Network (OSTI)

Parabolic geometries and normal Weyl structures First BGG operators and special solutions structures & BGG solutions #12;Parabolic geometries and normal Weyl structures First BGG operators the machinery of BGG sequences. Andreas Cap Weyl structures & BGG solutions #12;Parabolic geometries and normal

Drmota, Michael

357

ILP formulations for non-simple p-cycle and p-trail design in WDM mesh networks  

Science Conference Proceedings (OSTI)

Conventional simple p-cycle (Preconfigured Protection Cycle) concept allows fast and capacity-efficient span protection in WDM mesh networks. Unlike simple p-cycle, non-simple p-cycle can traverse a node or span multiple times. The recently proposed ... Keywords: Fast span protection, WDM (Wavelength Division Multiplexing), p-Cycle (Preconfigured Protection Cycle), p-Trail (Pre-Cross-Connected Trail)

Bin Wu; Kwan L. Yeung; Pin-Han Ho

2010-04-01T23:59:59.000Z

358

Dynamical response of the "GGG" rotor to test the Equivalence Principle: theory, simulation and experiment. Part I: the normal modes  

E-Print Network (OSTI)

Recent theoretical work suggests that violation of the Equivalence Principle might be revealed in a measurement of the fractional differential acceleration $\\eta$ between two test bodies -of different composition, falling in the gravitational field of a source mass- if the measurement is made to the level of $\\eta\\simeq 10^{-13}$ or better. This being within the reach of ground based experiments, gives them a new impetus. However, while slowly rotating torsion balances in ground laboratories are close to reaching this level, only an experiment performed in low orbit around the Earth is likely to provide a much better accuracy. We report on the progress made with the "Galileo Galilei on the Ground" (GGG) experiment, which aims to compete with torsion balances using an instrument design also capable of being converted into a much higher sensitivity space test. In the present and following paper (Part I and Part II), we demonstrate that the dynamical response of the GGG differential accelerometer set into supercritical rotation -in particular its normal modes (Part I) and rejection of common mode effects (Part II)- can be predicted by means of a simple but effective model that embodies all the relevant physics. Analytical solutions are obtained under special limits, which provide the theoretical understanding. A simulation environment is set up, obtaining quantitative agreement with the available experimental data on the frequencies of the normal modes, and on the whirling behavior. This is a needed and reliable tool for controlling and separating perturbative effects from the expected signal, as well as for planning the optimization of the apparatus.

G. L. Comandi; M. L. Chiofalo; R. Toncelli; D. Bramanti; E. Polacco; A. M. Nobili

2006-01-18T23:59:59.000Z

359

Simple, fast and highefficiency transformation system for directed evolution of cellulase in Bacillus subtilis  

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

Simple, Simple, fast and high-efficiency transformation system for directed evolution of cellulase in Bacillus subtilismbt_230 1 ..8 Xiao-Zhou Zhang 1 and Y.-H. Percival Zhang 1,2,3 * 1 Department of Biological Systems Engineering and 2 Institute for Critical Technology and Applied Science, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. 3 BioEnergy Science Center of Department of Energy, Oak Ridge, TN 37831, USA. Summary Bacillus subtilis can serve as a powerful platform for directed evolution, especially for secretory enzymes. However, cloning and transformation of a DNA mutant library in B. subtilis are not as easy as they are in Escherichia coli. For direct transformation of B. sub- tilis, here we developed a new protocol based on supercompetent cells prepared from the recombinant B. subtilis strain SCK6 and multimeric plasmids. This new protocol

360

A Simple Empirical Equation to Calculate Cloud Optical Thickness from Shortwave Broadband Measurements  

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

Simple Empirical Equation to Calculate Cloud Optical Simple Empirical Equation to Calculate Cloud Optical Thickness from Shortwave Broadband Measurements J. C. Barnard and C. N. Long Pacific Northwest National Laboratory Richland, Washington Introduction Observational studies of shortwave cloud optical thickness, c , play an important role in determining how clouds affect climate. Accordingly, considerable effort has been, and continues to be expended to characterize the spatial and temporal distribution of c over the globe. This effort involves satellite and ground-based measurements that infer c from measurements of the reflection or transmission of solar radiation. Transmitted solar radiation forms the basis of several important algorithms designed to calculate c ; these algorithms use either spectral irradiances (Min and Harrison 1996; henceforth referred

Note: This page contains sample records for the topic "degree-day normals simple" 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

Darboux transforms and simple factor dressing of constant mean curvature surfaces  

E-Print Network (OSTI)

We define a transformation on harmonic maps from a Riemann surface into the 2-sphere which depends on a complex parameter, the so-called mu-Darboux transformation. In the case when the harmonic map N is the Gauss map of a constant mean curvature surface f and the parameter is real, the mu-Darboux transformation of -N is the Gauss map of a classical Darboux transform f. More generally, for all complex parameter the transformation on the harmonic Gauss map of f is induced by a (generalized) Darboux transformation on f. We show that this operation on harmonic maps coincides with simple factor dressing, and thus generalize results on classical Darboux transforms of constant mean curvature surfaces: every mu-Darboux transform is a simple factor dressing, and vice versa.

Burstall, F E; Leschke, K; Quintino, A

2010-01-01T23:59:59.000Z

362

A simple, low-cost, data logging pendulum built from a computer mouse  

SciTech Connect

Lessons and homework problems involving a pendulum are often a big part of introductory physics classes and laboratory courses from high school to undergraduate levels. Although laboratory equipment for pendulum experiments is commercially available, it is often expensive and may not be affordable for teachers on fixed budgets, particularly in developing countries. We present a low-cost, easy-to-build rotary sensor pendulum using the existing hardware in a ball-type computer mouse. We demonstrate how this apparatus may be used to measure both the frequency and coefficient of damping of a simple physical pendulum. This easily constructed laboratory equipment makes it possible for all students to have hands-on experience with one of the most important simple physical systems.

Gintautas, Vadas [Los Alamos National Laboratory; Hubler, Alfred [UIUC

2009-01-01T23:59:59.000Z

363

Multiphoton Laser Processing: A Unique and Simple Way to Enter the  

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

Multiphoton Laser Processing: A Unique and Simple Way to Enter the Multiphoton Laser Processing: A Unique and Simple Way to Enter the Nano-Platform Speaker(s): Andreas Ostendorf Date: January 27, 2006 - 12:00pm Location: Bldg. 90 Multiphoton laser processing is one of the rapidly advancing laser technologies, providing unique possibilities for the fabrication of two- and three-dimensional microstructures. Multiphoton material processing has very important advantages over processes based on single photon absorption: an increased spatial resolution and the possibility of photofabrication inside transparent materials. Due to nonlinear nature of multiphoton processing, applications of ultrashort laser systems allow one to overcome the diffraction limit and to produce high quality 3D microstructures with a sub-wavelength resolution. This is very powerful

364

Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model  

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

Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model of the Subcloud Layer Under Fair-Weather Cumulus Conditions Albrecht, Bruce University of Miami Kollias, Pavlos Brookhaven National Laboratory Category: Modeling Marine boundary layer clouds are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earth's atmosphere. The observations from the ARM TWP-Nauru site provide a unique opportunity to study these clouds and the associated boundary layer structure. In this study an atmospheric mixed layer representation of the subcloud layer for application in fair-weather cumulus regimes is used to develop a diagnostic model of the near surface temperature and moisture associated with a given surface temperature and wind speed. This model

365

Effect of Asymmetric Rolling on Plastic Anisotropy of Low Carbon Steels during Simple Shear Tests  

Science Conference Proceedings (OSTI)

Simple shear tests are performed on low carbon steel pre-deformed in conventional, asymmetric and orthogonal-asymmetric rolling. The simple-shear tests were carried out at 0 deg. , 45 deg. and 135 deg. with respect to the previous rolling direction. For a reduction ratio of 15%, a transient stagnation in the hardening rate is observed at reloading for all changes in strain path. The shear stress level, the hardening rate and extent of the plateau appear to be insensitive to the preliminary applied rolling conditions. After a reduction ratio of 50%, plastic instability was detected at reloading for all the changes of strain path and rolling conditions studied. A specific heat treatment was then designed allowing the material to become ductile after rolling while retaining the fine microstructure and therefore the high strength. Promising results were obtained essentially for 45 deg. shear tests.

Gracio, J. J.; Vincze, G.; Panigrahi, B. B. [Centro de Tecnologia Mecanica e Automacao, Departamento de Engenharia Mecanica, Universidade de Aveiro, 3810-193 Aveiro (Portugal); Kim, H. J. [Materials Mechanics Laboratory(MML), Graduate Institute of Ferrous Technology(GIFT), Pohang University of Science and Technology, San 31 Hyoja-Dong, Nam-Gu, Pohang, Gyeongbuk, 790-784 (Korea, Republic of); Barlat, F. [Materials Mechanics Laboratory(MML), Graduate Institute of Ferrous Technology(GIFT), Pohang University of Science and Technology, San 31 Hyoja-Dong, Nam-Gu, Pohang, Gyeongbuk, 790-784 (Korea, Republic of); Centro de Tecnologia Mecanica e Automacao, Departamento de Engenharia Mecanica, Universidade de Aveiro, 3810-193 Aveiro (Portugal); Rauch, E. F. [Science Ingenierie des Materiaux and Procede s, GPM2 (CNRS UMR 5266) INPG-UJF, BP 46, 38402 Saint Martin d'Heres Cedex (France); Yoon, J. W. [Alloy Technology and Material Research Division, Alcoa Technical Center, 100 Technical Drive, Alcoa Center, PA 15069-0001 (United States); Centro de Tecnologia Mecanica e Automacao, Departamento de Engenharia Mecanica, Universidade de Aveiro, 3810-193 Aveiro (Portugal)

2010-06-15T23:59:59.000Z

366

Preventing Premature Convergence in a Simple EDA Via Global Step Size Setting  

E-Print Network (OSTI)

When a simple real-valued estimation of distribution algorithm (EDA) with Gaussian model and maximum likelihood estimation of parameters is used, it converges prematurely even on the slope of the fitness function. The simplest way of preventing premature convergence by multiplying the variance estimate by a constant factor k each generation is studied. Recent works have shown that when increasing the dimensionality of the search space, such an algorithm becomes very quickly unable to traverse the slope and focus to the optimum at the same time. In this paper it is shown that when isotropic distributions with Gaussian or Cauchy distributed norms are used, the simple constant setting of k is able to ensure a reasonable behaviour of the EDA on the slope and in the valley of the fitness function at the same time.

Petr Posk

2008-01-01T23:59:59.000Z

367

NBER WORKING PAPER SERIES THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION  

Gasoline and Diesel Fuel Update (EIA)

NBER WORKING PAPER SERIES NBER WORKING PAPER SERIES THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION Christopher R. Knittel Robert S. Pindyck Working Paper 18951 http://www.nber.org/papers/w18951 NATIONAL BUREAU OF ECONOMIC RESEARCH 1050 Massachusetts Avenue Cambridge, MA 02138 April 2013 Robert S. Pindyck hereby declares that he has no relevant material financial interests that relate to the research described in this paper. Christopher R. Knittel hereby declares that he has no direct relevant

368

Simple relations among E2 matrix elements of low-lying collective states  

E-Print Network (OSTI)

A method is developed to derive simple relations among the reduced matrix elements of the quadrupole operator between low-lying collective states. As an example, the fourth order scalars of Q are considered. The accuracy and validity of the proposed relations is checked for the ECQF Hamiltonian of the IBM-1 in the whole parameter space of the Casten triangle. Furthermore these relations are successfully tested for low-lying collective states in nuclei for which all relevant data is available.

V. Werner; P. von Brentano; R. V. Jolos

2001-05-16T23:59:59.000Z

369

Heat Capacity and Entanglement Measure in a simple two-qubit model  

E-Print Network (OSTI)

A simple two-qubit model showing Quantum Phase Transitions as a consequence of ground state level crossings is studied in detail. Using the Concurrence of the system as an entanglement measure and heat capacity as a marker of thermodynamical properties, an analytical expression giving the latter in terms of the former is obtained. A protocol allowing an experimental measure of entanglement is then presented and compared with a related proposal recently reported by Wie\\'sniak, Vedral and Brukner

Leggio, B; Nakazato, H; Messina, A

2011-01-01T23:59:59.000Z

370

Performance limits of gravity-assist heat pipes with simple wick structures  

SciTech Connect

Experiments using gravity-assist heat pipes with simple wick structures were used to establish performance limits due to entrainment of the liquid by the counterflowing vapor. A physical model is postulated which leads to a single correlation predicting entrainment limits for all data investigated. The characteristic length in the entrainment parameter is the depth of the wick structure and the model infers an upper bound on this parameter.

Prenger, F.C. Jr.; Kemme, J.E.

1981-01-01T23:59:59.000Z

371

Competition and fragmentation: a simple model generating lognormal-like distributions  

E-Print Network (OSTI)

The current distribution of language size in terms of speaker population is generally described using a lognormal distribution. Analyzing the original real data we show how the double-Pareto lognormal distribution can give an alternative fit that indicates the existence of a power law tail. A simple model, based on competition and fragmentation, reproduces such behavior and is able to well approximate real data.

Schwmmle, V; Brigatti, E; Tchumatchenko, T

2008-01-01T23:59:59.000Z

372

Resistance Calculation for an infinite Simple Cubic Lattice- Application of Green's Function  

E-Print Network (OSTI)

It is shown that the resistance between the origin and any lattice point (l,m,n) in an infinite perfect Simple Cubic (SC) is expressed rationally in terms of the known value of G0(0,0,0). The resistance between arbitrary sites in a SC is also studied and calculated when one of the resistors is removed from the perfect lattice. Finally, the asymptotic behavior of the resistance for both the perfect and perturbed SC network is investigated

J. H. Asad; R. S. Hijjawi; A. J. Sakaji; J. M. Khalifeh

2009-05-01T23:59:59.000Z

373

Interaction of impurity ions with a weakly non-Maxwellian simple hydrogenic plasma  

DOE Green Energy (OSTI)

The average acceleration of an ensemble of ''test particles'' in a plasma is called the ''dynamical friction''; the average rate at which their velocity vectors spread out in velocity space is expressed in a velocity-space diffusion-rate tensor. These quantities are derived for impurity ions interacting with a weakly non-Maxwellian simple hydrogenic plasma. The distribution functions for the plasma ions and electrons are written explicitly. 5 refs., 3 figs.

Terry, W.K.

1988-08-01T23:59:59.000Z

374

A simple setup for neutron tomography at the Portuguese Nuclear Research Reactor  

E-Print Network (OSTI)

A simple setup for neutron radiography and tomography was recently installed at the Portuguese Research Reactor. The objective of this work was to determine the operational characteristics of the installed setup, namely the irradiation time to obtain the best dynamic range for individual images and the spatial resolution. The performance of the equipment was demonstrated by imaging a fragment of a 17th century decorative tile.

M. A. Stanojev Pereira; J. G. Marques; R. Pugliesi

2012-05-15T23:59:59.000Z

375

Development of a Simple Radioactive marker System to Reduce Positioning Errors in Radiation Treatment  

SciTech Connect

The objective of this research is to implement an inexpensive, quick and simple monitor that provides an accurate indication of proper patient position during the treatment of cancer by external beam X-ray radiation and also checks for any significant changes in patient anatomy. It is believed that this system will significantly reduce the treatment margin, provide an additional, independent quality assurance check of positioning accuracy prior to all treatments and reduce the probability of misadministration of therapeutic dose.

William H. Miller; Dr. Jatinder Palta

2007-03-19T23:59:59.000Z

376

A Few Simple Steps for Better Gas Mileage | Department of Energy  

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

A Few Simple Steps for Better Gas Mileage A Few Simple Steps for Better Gas Mileage A Few Simple Steps for Better Gas Mileage May 9, 2012 - 3:20pm Addthis Amanda McAlpin Last week I went home for a family reunion. Visiting my family was great, and one of my favorite things was hanging out with my dad in the garage while he works on the car. When my siblings and I began to drive and own cars, my dad continually reminded us of the need to keep our cars on a regular maintenance schedule. With warmer spring weather here, and summer just around the corner, it's a great time to get these things done. To make things easy, we have a checklist for you so it's easy to remember what needs to be done. Keeping your engine in tune can be one of the most effective things you can do for your gas mileage. Repairing some problems that can be uncovered with

377

A Few Simple Steps for Better Gas Mileage | Department of Energy  

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

A Few Simple Steps for Better Gas Mileage A Few Simple Steps for Better Gas Mileage A Few Simple Steps for Better Gas Mileage May 9, 2012 - 3:20pm Addthis Amanda McAlpin Last week I went home for a family reunion. Visiting my family was great, and one of my favorite things was hanging out with my dad in the garage while he works on the car. When my siblings and I began to drive and own cars, my dad continually reminded us of the need to keep our cars on a regular maintenance schedule. With warmer spring weather here, and summer just around the corner, it's a great time to get these things done. To make things easy, we have a checklist for you so it's easy to remember what needs to be done. Keeping your engine in tune can be one of the most effective things you can do for your gas mileage. Repairing some problems that can be uncovered with

378

User's manual for TEDPED, an interactive code for testing the hypothesis of log-normally or normally distributed data. [In FORTRAN IV for PDP-10  

Science Conference Proceedings (OSTI)

TEDPED is an interactive computer code that produces both graphical and numerical descriptions of a set of data based on the user's assumption of either a normal or a log-normal distribution. Numerical statistics calculated by TEDPED at the user's option are the chi-square, Kolmogorov-Smirnov, and Pearson's. The linearized cumulative-probability distribution of the data may be plotted, together with a least-squares fit, consistent with either the normal or log-normal assumption. Data input may be by named data file or via the user's terminal keyboard. The code is written in FORTRAN and runs on a Digital Equipment Corporation PDP-10 computer; typical central-processor-unit execution time is about 0.32 s. 50 figures, 1 table.

Fields, D.E.; Little, C.A.; Shaeffer, D.L.

1980-06-01T23:59:59.000Z

379

Pentose fermentation of normally toxic lignocellulose prehydrolysate with strain of Pichia stipitis yeast using air  

DOE Patents (OSTI)

Strains of the yeast Pichia stipitis NPw9 (ATCC PTA-3717) useful for the production of ethanol using oxygen for growth while fermenting normally toxic lignocellulosic prehydrolysates.

Keller, Jr., Fred A. (Lakewood, CO); Nguyen, Quang A. (Golden, CO)

2002-01-01T23:59:59.000Z

380

Intra-hour Direct Normal Irradiance solar forecasting using genetic programming  

E-Print Network (OSTI)

E. Ruano, Prediction of the solar radiation evolution usingComputation of beam solar radiation at normal incidencein estimating global solar radiation, Solar Energy, vol.

Queener, Benjamin Daniel

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

www.mdpi.com/journal/ijms Physical Properties of Normal Grade Biodiesel and Winter Grade Biodiesel  

E-Print Network (OSTI)

Abstract: In this study, optical and thermal properties of normal grade and winter grade palm oil biodiesel were investigated. Surface Plasmon Resonance and Photopyroelectric technique were used to evaluate the samples. The dispersion curve and thermal diffusivity were obtained. Consequently, the variation of refractive index, as a function of wavelength in normal grade biodiesel is faster than winter grade palm oil biodiesel, and the thermal diffusivity of winter grade biodiesel is higher than the thermal diffusivity of normal grade biodiesel. This is attributed to the higher palmitic acid C16:0 content in normal grade than in winter grade palm oil biodiesel.

Amir Reza Sadrolhosseini; Mohd Maarof Moksin; Harrison Lau; Lik Nang; Monir Norozi; W. Mahmood; Mat Yunus; Azmi Zakaria

2011-01-01T23:59:59.000Z

382

West Coast (PADD 5) Product Supplied of Normal Butane-Butylene ...  

U.S. Energy Information Administration (EIA)

West Coast (PADD 5) Product Supplied of Normal Butane-Butylene (Thousand Barrels per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; ...

383

Solar: monthly direct normal (DNI) GIS data at 10km resolution...  

Open Energy Info (EERE)

visible irradiance, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total of the normal or beam...

384

Solar: annual average direct normal (DNI) GIS data at 10km resolution...  

Open Energy Info (EERE)

visible irradiance, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total of the normal or beam...

385

Intra-hour Direct Normal Irradiance solar forecasting using genetic programming  

E-Print Network (OSTI)

UNIVERSITY OF CALIFORNIA, SAN DIEGO Intra-hour Direct NormalChair University of California, San Diego iii TABLE OFRPS, Technical report, California Independent System

Queener, Benjamin Daniel

2012-01-01T23:59:59.000Z

386

Optimizing Normal Tissue Sparing in Ion Therapy Using Calculated Isoeffective Dose for Ion Selection  

Science Conference Proceedings (OSTI)

Purpose: To investigate how the selection of ion type affects the calculated isoeffective dose to the surrounding normal tissue as a function of both normal tissue and target tissue {alpha}/{beta} ratios. Methods and Materials: A microdosimetric biologic dose model was incorporated into a Geant4 simulation of parallel opposed beams of protons, helium, lithium, beryllium, carbon, and neon ions. The beams were constructed to give a homogeneous isoeffective dose to a volume in the center of a water phantom for target tissues covering a range of cobalt equivalent {alpha}/{beta} ratios of 1-20 Gy. Concomitant normal tissue isoeffective doses in the plateau of the ion beam were then compared for different ions across the range of normal tissue and target tissue radiosensitivities for a fixed isoeffective dose to the target tissue. Results: The ion type yielding the optimal normal tissue sparing was highly dependent on the {alpha}/{beta} ratio of both the normal and the target tissue. For carbon ions, the calculated isoeffective dose to normal tissue at a 5-cm depth varied by almost a factor of 5, depending on the {alpha}/{beta} ratios of the normal and target tissue. This ranges from a factor of 2 less than the isoeffective dose of a similar proton treatment to a factor of 2 greater. Conclusions: No single ion is optimal for all treatment scenarios. The heavier ions are superior in cases in which the {alpha}/{beta} ratio of the target tissue is low and the {alpha}/{beta} ratio of normal tissue is high, and protons are superior in the opposite circumstances. Lithium and beryllium appear to offer dose advantages similar to carbon, with a considerably lower normal tissue dose when the {alpha}/{beta} ratio in the target tissue is high and the {alpha}/{beta} ratio in the normal tissue is low.

Remmes, Nicholas B. [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States); Herman, Michael G., E-mail: Herman.Michael@mayo.edu [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States); Kruse, Jon J. [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States)

2012-06-01T23:59:59.000Z

387

Simple proof of the quantum benchmark fidelity for continuous-variable quantum devices  

E-Print Network (OSTI)

An experimental success criterion for continuous-variable quantum teleportation and memories is to surpass a limit of the average fidelity achieved by the classical measure-and-prepare schemes with respect to a Gaussian distributed set of coherent states. We present a simple proof of the classical limit based on the familiar notions of the state-channel duality and the partial transposition. The present method enables us to produce a quantum-domain criterion associated with a given set of measured fidelities.

Ryo Namiki

2011-04-06T23:59:59.000Z

388

The universal Airy_1 and Airy_2 processes in the Totally Asymmetric Simple Exclusion Process  

E-Print Network (OSTI)

In the totally asymmetric simple exclusion process (TASEP) two processes arise in the large time limit: the Airy_1 and Airy_2 processes. The Airy_2 process is an universal limit process occurring also in other models: in a stochastic growth model on 1+1-dimensions, 2d last passage percolation, equilibrium crystals, and in random matrix diffusion. The Airy_1 and Airy_2 processes are defined and discussed in the context of the TASEP. We also explain a geometric representation of the TASEP from which the connection to growth models and directed last passage percolation is immediate.

Patrik L. Ferrari

2007-01-08T23:59:59.000Z

389

Simple Analytical U-Tube Benchmarks Appropriate for Testing of Pipe-Network Computer Codes  

SciTech Connect

Partially heated U-tube configurations are characteristic idealizations for the so called building condensers of future nuclear reactors with passive safety systems. In this paper three simple cases of natural circulation problems are analyzed and analytical solutions are generated. This solutions are recommended for validation of pipe network computer codes. As an example the procedure is demonstrated for the IVA computer code. The usefulness of the obtained solutions is demonstrated discussing the inherent safety behavior of the building condenser of the Framatome ANP SWR 1000 power plant being under development. (authors)

Kolev, N.I. [Framatome ANP GmbH, PO Box 3220, Erlangen, 91050 (Germany)

2002-07-01T23:59:59.000Z

390

Simple predictive model for performance of desiccant beds for solar dehumidification  

DOE Green Energy (OSTI)

A computer model is outlined for the absorption/desorption process that can be used to predict the performance of desiccant beds for solar regenerated dehumidification of passively cooled buildings. Instead of solving a set of coupled differential equations, the model uses simple algebraic equations for steady-state heat and mass exchangers. A comparison of computer predictions and experimental data demonstrate the validity and accuracy of the model. The physics of the adsorption process is discussed in terms of two psychrometric process lines, and planned research efforts at SERI are described.

Barlow, R.S.

1981-08-01T23:59:59.000Z

391

Two Simple Ways of Generating the Partitions of (n+1) from the Partitions of n  

E-Print Network (OSTI)

I propose two simple ways of generating the partitions of (n+1) from the partitions of n. A recurrence relation for P(n+1), the number of partitions of (n+1), in terms of P(n) and Q(n), where Q(n) denotes the number of partitions of n having strictly different last two parts is obtained. Also a generating function for Q(n) is given. The other method for generating the partitions of (n+1) from the partitions of n is discussed at the end.

Dhananjay P. Mehendale

2004-11-27T23:59:59.000Z

392

Emergent Run-and-Tumble Behavior in a Simple Model of Chlamydomonas with Intrinsic Noise  

E-Print Network (OSTI)

Recent experiments on the green alga Chlamydomonas that swims using synchronized beating of a pair of flagella have revealed that it exhibits a run-and-tumble behavior similar to that of bacteria such as E. Coli. Using a simple purely hydrodynamic model that incorporates a stroke cycle and an intrinsic Gaussian white noise, we show that a stochastic run-and-tumble behavior could emerge, due to the nonlinearity of the combined synchronization-rotation-translation dynamics. This suggests the intriguing possibility that the alga might exploit nonlinear mechanics---as opposed to sophisticated biochemical circuitry as used by bacteria---to control its behavior.

Rachel R. Bennett; Ramin Golestanian

2012-11-14T23:59:59.000Z

393

Search of double shell closure in the superheavy nuclei using a simple effective interaction  

E-Print Network (OSTI)

This paper refers to an another attempt to search for spherical double shell closure nu- clei beyond Z=82, N=126. All calculations and results are based on a newly developed approach entitled as simple effective interaction. Our results predict the combination of magic nucleus occurs at N=182 (Z=114,120,126). All possible evidences for the oc- currence of magic nuclei are discussed systematically. And, the obtained results for all observables compared with the relativistic mean field theory for NL3 parameter.

S. K. Biswal; M. Bhuyan; S. K. Singh; S. K. Patra

2014-01-19T23:59:59.000Z

394

The Coupling of ESP-R and Genopt: A Simple Case Study  

Science Conference Proceedings (OSTI)

This paper describes and demonstrates how to use the optimization program GenOpt with the building energy simulation program ESP-r. GenOpt, a generic optimization program, minimises an objective function that is evaluated by an external simulation program. It has been developed for optimization problems that are computationally expensive and that may have nonsmooth objective functions. ESP-r is a research oriented building simulation program that is well validated and has been used to conduct various building energy analysis studies. In this paper, the necessary file preparations are described and a simple optimization example is presented.

Peeters, Leen; D'haeseleer, William; Ferguson, Alex; Wetter, Michael

2010-07-01T23:59:59.000Z

395

Normal Inverse Gaussian Error Distributions Applied for the Positioning of Petroleum Wells  

E-Print Network (OSTI)

Normal Inverse Gaussian Error Distributions Applied for the Positioning of Petroleum Wells Tony In this paper we present a new statistical model for the positioning of petroleum wells using magnetic of a well. The normal inverse Gaussian gives a more realistic fit to the magnetic observatory data than

Eidsvik, Jo

396

Normal Mode Initialization for a Multilevel Grid-Point Model. Part I: Linear Aspects  

Science Conference Proceedings (OSTI)

In Part I of this paper we review initialization methods for numerical weather prediction models, leading up to the development of schemes based on the normal modes of the forecast model. We present the derivation of the normal modes of ECMWF's ...

Clive Temperton; David L. Williamson

1981-04-01T23:59:59.000Z

397

May 28-29, 2008/ARR Thermal Effect of Off-Normal Energy  

E-Print Network (OSTI)

May 28-29, 2008/ARR 1 Thermal Effect of Off-Normal Energy Deposition on Bare Ferritic Steel First #12;May 28-29, 2008/ARR 2 Power Plant FW Under Energy Deposition from Off- Normal Conditions · Thermal Meeting) · Disruptions: ­ Parallel energy density for thermal quench = 28-45 MJ/m2 near X

Raffray, A. René

398

Parabolic geometries and normal Weyl structures First BGG operators and special solutions  

E-Print Network (OSTI)

Parabolic geometries and normal Weyl structures First BGG operators and special solutions structures & BGG solutions #12;Parabolic geometries and normal Weyl structures First BGG operators to a parabolic geometry. The first operator in each BGG sequence defines a geometric overdetermined system

Drmota, Michael

399

Recovery of normally gaseous hydrocarbons from net excess hydrogen in a catalytic reforming process  

Science Conference Proceedings (OSTI)

A process is disclosed for the catalytic reforming of hydrocarbons in the presence of hydrogen, preferably to produce high quality gasoline boiling range products. An improved recovery of normally gaseous hydrocarbons from the net excess hydrogen is realized by chilling and contacting said hydrogen with a normally liquid hydrocarbon stream in a plural stage absorption zone at an elevated pressure.

Scheifele, C.A.

1982-06-08T23:59:59.000Z

400

Asymptotic normality and Berry-Esseen results for conditional density estimator with censored and dependent data  

Science Conference Proceedings (OSTI)

In this paper we derive the asymptotic normality and a Berry-Esseen type bound for the kernel conditional density estimator proposed in Ould-Said and Cai (2005) [26] when the censored observations with multivariate covariates form a stationary @a-mixing ... Keywords: ?-mixing, 62G07, 62G20, Asymptotic normality, Berry-Esseen type bound, Censored data, Conditional density

Han-Ying Liang; Liang Peng

2010-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Unsupervised gene/protein named entity normalization using automatically extracted dictionaries  

Science Conference Proceedings (OSTI)

Gene and protein named-entity recognition (NER) and normalization is often treated as a two-step process. While the first step, NER, has received considerable attention over the last few years, normalization has received much less attention. We have ...

Aaron M. Cohen

2005-06-01T23:59:59.000Z

402

On the Self-Interaction of a Geostrophic Current and its Inertia-Gravity Normal Modes  

Science Conference Proceedings (OSTI)

A shallow-water channel model on an f plane is used to study the interaction of barotropic inertia-gravity normal modes and geostrophic currents. Computed numerically are 1) the normal modes associated with a, zonal current, 2) the nonlinear wave ...

Richard A. Hyde

1984-10-01T23:59:59.000Z

403

Constraint Satisfaction Algorithm for the Automated Decryption of Simple Substitution Ciphers  

E-Print Network (OSTI)

This paper describes a systematic procedure for decrypting simple substitution ciphers with word divisions. The algorithm employs an exhaustive search in a large on-line dictionary for words that satisfy constraints on word length, letter position and letter multiplicity. The method does not rely on statistical or semantical properties of English, nor does it use any language-specific heuristics. The system is, in fact, language independent in the sense that it would work equally well over any language for which a suf- ficiently large dictionary exists on-line. To reduce the potentially high cost of locating all words that contain specified patterns, the dictionary is compiled into a database from which groups of words that satisfy simple constraints may be accessed simultaneously. The algorithm (using a relatively small dictionary of 19,000 entries) has been implemented in Franz Lisp on a Vax 11/780 computer running 4.3 BSD Unix. The system is frequently successful in a completely automated mode -- preliminary testing indicates about a 60% success rate, usually in less than three minutes of CPU time. If it fails, there exist interactive facilities, permitting the user to guide the search manually, that perform very well with minor human intervention.

Michael Lucks Department

1988-01-01T23:59:59.000Z

404

SAGA: A Simple API for Grid Applications -- High-Level ApplicationProgramming on the Grid  

SciTech Connect

Grid technology has matured considerably over the past fewyears. Progress in both implementation and standardization is reaching alevel of robustness that enables production quality deployments of gridservices in the academic research community with heightened interest andearly adoption in the industrial community. Despite this progress, gridapplications are far from ubiquitous, and new applications require anenormous amount of programming effort just to see first light. A keyimpediment to accelerated deployment of grid applications is the scarcityof high-level application programming abstractions that bridge the gapbetween existing grid middle-ware and application-level needs. The SimpleAPI for Grid Applications (SAGA [1]) is a GGF standardization effort thataddresses this particular gap by providing a simple, stable, and uniformprogramming interface that integrates the most common grid programmingabstractions. These most common abstractions were identified through theanalysis of several existing and emerging Grid applications. In thisarticle, we present the SAGA effort, describe its relationship to otherGrid API efforts within the GGF community, and introduce the first draftof the API using some application programming examples.

Goodale, Tom; Jha, Shantenu; Kaiser, Hartmut; Kielmann, Thilo; Kleijer, Pascal; von Laszewski, Gregor; Lee, Craig; Merzky, Andre; Rajic,Hrabri; Shalf, John

2006-05-31T23:59:59.000Z

405

Pamgen, a library for parallel generation of simple finite element meshes.  

SciTech Connect

Generating finite-element meshes is a serious bottleneck for large parallel simulations. When mesh generation is limited to serial machines and element counts approach a billion, this bottleneck becomes a roadblock. Pamgen is a parallel mesh generation library that allows on-the-fly scalable generation of hexahedral and quadrilateral finite element meshes for several simple geometries. It has been used to generate more that 1.1 billion elements on 17,576 processors. Pamgen generates an unstructured finite element mesh on each processor at the start of a simulation. The mesh is specified by commands passed to the library as a 'C'-programming language string. The resulting mesh geometry, topology, and communication information can then be queried through an API. pamgen allows specification of boundary condition application regions using sidesets (element faces) and nodesets (collections of nodes). It supports several simple geometry types. It has multiple alternatives for mesh grading. It has several alternatives for the initial domain decomposition. Pamgen makes it easy to change details of the finite element mesh and is very useful for performance studies and scoping calculations.

Foucar, James G.; Drake, Richard Roy; Hensinger, David M.; Gardiner, Thomas Anthony

2008-04-01T23:59:59.000Z

406

Species and community response to above normal precipitation following prolonged drought in the northern Mojave Desert  

Science Conference Proceedings (OSTI)

Little information is available on how desert plant communities that are dominated by perennial species respond to normal and above normal precipitation following prolonged drought. Intuitively, one would expect total canopy cover to increase. Whether a concomitant increase in the density of perennial species also occurs is unknown. Even less is known about how individual species respond to above normal precipitation following drought. From 1987 through 1991 a prolonged drought occurred in much of the western United States, including the northern Mojave Desert. In March 1991 the northern Mojave Desert received well above normal precipitation. The following two winters (December--March) also had above normal precipitation (150 to 200 % of normal, unpublished data). Ongoing vegetation characterization studies by the US Department of Energy (DOE) at Yucca Mountain, Nevada, allowed EG&G Energy Measurements to collect data that could be used to infer how both vegetation associations and individual species respond to above normal precipitation following prolonged drought. This paper reports the preliminary results.

Schultz, B.W. [Nevada Univ., Reno, NV (United States). Desert Research Inst.; Ostler, W.K. [EG and G Energy Measurements, Inc., Las Vegas, NV (United States)

1993-12-31T23:59:59.000Z

407

Simple technologies for on-farm composting of cattle slurry solid fraction  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Simple management techniques were examined for composting slurry solid fraction. Black-Right-Pointing-Pointer Composting slurry solids was effective without bulking agents, turning or rewetting. Black-Right-Pointing-Pointer Maximum rates of organic matter destruction were observed in short piles. Black-Right-Pointing-Pointer Thermophilic temperatures in tall piles maximised sanitation and moisture reduction. Black-Right-Pointing-Pointer The simple compost management approach maximised N retention and agronomic value. - Abstract: Composting technologies and control systems have reached an advanced stage of development, but these are too complex and expensive for most agricultural practitioners for treating livestock slurries. The development of simple, but robust and cost-effective techniques for composting animal slurries is therefore required to realise the potential benefits of waste sanitation and soil improvement associated with composted livestock manures. Cattle slurry solid fraction (SF) was collected at the rates of 4 m{sup 3} h{sup -1} and 1 m{sup 3} h{sup -1} and composted in tall (1.7 m) and short (1.2 m) static piles, to evaluate the physicochemical characteristics and nutrient dynamics of SF during composting without addition of bulking agent materials, and without turning or water addition. Highest maximum temperatures (62-64 Degree-Sign C) were measured in tall piles compared to short piles (52 Degree-Sign C). However, maximum rates of organic matter (OM) destruction were observed at mesophilic temperature ranges in short piles, compared to tall piles, whereas thermophilic temperatures in tall piles maximised sanitation and enhanced moisture reduction. Final OM losses were within the range of 520-660 g kg{sup -1} dry solids and the net loss of OM significantly (P < 0.001) increased nutrient concentrations during the composting period. An advanced degree of stabilization of the SF was indicated by low final pile temperatures and C/N ratio, low concentrations of NH{sub 4}{sup +} and increased concentrations of NO{sub 3}{sup -} in SF composts. The results indicated that minimum intervention composting of SF in static piles over 168 days can produce agronomically effective organic soil amendments containing significant amounts of OM (772-856 g kg{sup -1}) and plant nutrients. The implications of a minimal intervention management approach to composting SF on compost pathogen reduction are discussed and possible measures to improve sanitation are suggested.

Brito, L.M., E-mail: miguelbrito@esa.ipvc.pt [Escola Superior Agraria, Instituto Politecnico de Viana do Castelo, Refoios, 4990-706 Ponte de Lima (Portugal) and Mountain Research Centre (CIMO), IPB, Campus de St Apolonia, Apartado 1172, 5301-855 Braganca (Portugal); Mourao, I. [Escola Superior Agraria, Instituto Politecnico de Viana do Castelo, Refoios, 4990-706 Ponte de Lima (Portugal) and Mountain Research Centre (CIMO), IPB, Campus de St Apolonia, Apartado 1172, 5301-855 Braganca (Portugal); Coutinho, J., E-mail: j_coutin@utad.pt [C. Quimica, DeBA, EC Vida e Ambiente, Universidade de Tras-os-Montes e Alto Douro, ap 1013, 5001-911 Vila Real (Portugal); Smith, S.R., E-mail: s.r.smith@imperial.ac.uk [Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ (United Kingdom)

2012-07-15T23:59:59.000Z

408

Prospective and Practicing Middle School Teachers' Knowledge of Curriculum for Teaching Simple Algebraic Equations  

E-Print Network (OSTI)

Knowledge of curriculum is a significant component of mathematical knowledge for teaching. However, clearly understanding knowledge of curriculum requires further refinement and substantial research. This study consists of three papers that aim to explore prospective and practicing middle school teachers Knowledge of Curriculum for Teaching Simple Algebraic Equations (KCTE). The first paper reviews trends in and the evolution of standards and policies and synthesizes significant findings of research on mathematics curriculum and Knowledge of Curriculum for Mathematics Teaching (KCMT). Through this synthesis, the paper examines policy changes and research relevant to mathematics curriculum and KCMT and anticipates future research approaches and topics that show promise. Building on the context provided by the first paper, the following two papers investigate KCTE from the perspectives of prospective and practicing middle school mathematics teachers. For the second paper, data was collected from a convenience sample of 58 prospective middle school mathematics teachers and a subsample of six participants. The findings of this study identify patterns of key mathematical topics in the teaching sequence of simple algebraic equations, compare the participants sequences with experts, reveal participants orientations toward KCTE, draw connections between participants KCTE and their knowledge of content and teaching, and establish relationships between participants KCTE and their knowledge of content and students. Four middle school mathematics teachers participated in the third study. The results indicate that state-level intended curriculum is the most prevailing component of participants KCTE. Furthermore, from a vertical view of curriculum, participants awareness of their students lack of basic mathematical knowledge impacted their KCTE. The paper also identifies the role of the state-level intended curriculum in participants KCTE, alternative approaches to curriculum implementation that participants used to respond to the multiple intelligences of their students, and the participants lack of lateral curriculum knowledge in KCTE. Together, these three papers offer a closer look at KCMT with a focus on simple algebraic equations. This research broadens our understanding of prospective and practicing middle school teachers KCMT and discusses implications for professional development.

Ma, Tingting

2012-12-01T23:59:59.000Z

409

The Application of a Simple Method for the Verification of Weather Forecasts and Seasonal Variations in Forecast Accuracy  

Science Conference Proceedings (OSTI)

The evaluation of weather forecast accuracy has always been a difficult subject to address for many reasons. In this study, a simple semiobjective method is used to examine the accuracy of zone forecasts issued by the Weldon Spring (Saint Louis) ...

Anthony R. Lupo; Patrick S. Market

2002-08-01T23:59:59.000Z

410

Abrupt Circulation Responses to Tropical Upper-Tropospheric Warming in a Relatively Simple Stratosphere-Resolving AGCM  

Science Conference Proceedings (OSTI)

The circulation response of the atmosphere to climate changelike thermal forcing is explored with a relatively simple, stratosphere-resolving general circulation model. The model is forced with highly idealized physics, but integrates the ...

Shuguang Wang; Edwin P. Gerber; Lorenzo M. Polvani

2012-06-01T23:59:59.000Z

411

A Simple Method to Compute the Change in Earth-Atmosphere Radiative Balance Due to a Stratospheric Aerosol Layer  

Science Conference Proceedings (OSTI)

A simple three-layer model of the earth-atmosphere system, including the ground, troposphere and stratosphere, with their interactions, is developed. The model permits the radiative characteristics of both the troposphere and stratosphere to be ...

J. Lenoble; D. Tanre; P. Y. Deschamps; M. Herman

1982-11-01T23:59:59.000Z

412

Alongwind DispersionA Simple Similarity Formula Compared with Observations at 11 Field Sites and in One Wind Tunnel  

Science Conference Proceedings (OSTI)

Observations of alongwind dispersion of clouds were collected from 11 field sites and from one wind tunnel and were used to test simple similarity relations. Because most of the observations consist of concentration time series from fixed ...

Steven R. Hanna; Pasquale Franzese

2000-10-01T23:59:59.000Z

413

A Simple Ocean Data Assimilation Analysis of the Global Upper Ocean 195095. Part II: Results  

Science Conference Proceedings (OSTI)

The authors explore the accuracy of a comprehensive 46-year retrospective analysis of upper-ocean temperature, salinity, and currents. The Simple Ocean Data Assimilation (SODA) analysis is global, spanning the latitude range 62S62N. The SODA ...

James A. Carton; Gennady Chepurin; Xianhe Cao

2000-02-01T23:59:59.000Z

414

The Steady-State Atmospheric Circulation Response to Climate Changelike Thermal Forcings in a Simple General Circulation Model  

Science Conference Proceedings (OSTI)

The steady-state extratropical atmospheric response to thermal forcing is investigated in a simple atmospheric general circulation model. The thermal forcings qualitatively mimic three key aspects of anthropogenic climate change: warming in the ...

Amy H. Butler; David W. J. Thompson; Ross Heikes

2010-07-01T23:59:59.000Z

415

Nanostructured ZnO arrays with self-ZnO layer created using simple electrostatic layer-by-layer assembly  

Science Conference Proceedings (OSTI)

Formation of unique ZnO nanoarrays utilizing photodynamic polymer, surface-relief grating structures, and unique electrostatic layer-by-layer assembly as a simple and economical methodology was demonstrated. Atomic force microscope (AFM), scanning electron ...

PilHo Huh; Seong-Cheol Kim

2012-01-01T23:59:59.000Z

416

Tropical Atlantic Decadal Oscillation and Its Potential Impact on the Equatorial AtmosphereOcean Dynamics: A Simple Model Study  

Science Conference Proceedings (OSTI)

Simple coupled atmosphereocean models are used to study the potential influence of the tropical Atlantic Ocean decadal oscillation on the equatorial Atlantic atmosphereocean dynamics. Perturbing the model tropical Atlantic at the extratropics (...

Sang-Ki Lee; Chunzai Wang

2008-01-01T23:59:59.000Z

417

Measurements and calculations on the simple up-down adaptive procedure for speech-in-noise tests  

Science Conference Proceedings (OSTI)

The simple up-down adaptive procedure is a common method for measuringspeech reception thresholds. It is used by the Dutch speech-in-noise telephone screening test [National Hearing test; Smits and Houtgast Ear Hear.26

Cas Smits; Tammo Houtgast

2006-01-01T23:59:59.000Z

418

Fuel cell system logic for differentiating between rapid and normal shutdown commands  

DOE Green Energy (OSTI)

A method of controlling the operation of a fuel cell system wherein each shutdown command for the system is subjected to decision logic which determines whether the command should be a normal shutdown command or rapid shutdown command. If the logic determines that the shutdown command should be a normal shutdown command, then the system is shutdown in a normal step-by-step process in which the hydrogen stream is consumed within the system. If the logic determines that the shutdown command should be a rapid shutdown command, the hydrogen stream is removed from the system either by dumping to atmosphere or routing to storage.

Keskula, Donald H. (Webster, NY); Doan, Tien M. (Columbia, MD); Clingerman, Bruce J. (Palmyra, NY)

2000-01-01T23:59:59.000Z

419

A simple packet retransmission strategy for throughput and delay enhancement on power line communication channels  

SciTech Connect

A new, simple, and effective communication protocol is developed and evaluated for use on power line distribution networks. The protocol involves retransmission of unacknowledged packets, which are sent in either single or multiple (N) copies in accordance with estimates of communication link quality. Multiple packet copies can be code combined at the receiver, using majority voting on each bit position, to reduce packet error rates. Adaptive link quality estimates are based on the receipt or absence of positive acknowledgements. Information throughput efficiency is calculated and N optimized in terms of system variables. Performance benefits of code combining are clearly demonstrated. The algorithm was implemented and tested using a five-station intrabuilding power line communications network operating at 1.2, 2.4, 4.8 and 9.6 kbit/s data rate. Substantial throughput and delay improvement occurred on poor quality links, without degrading performance on good links.

Onunga, J.O. (Kenya Posts and Telecommunications Corp., Nairobi (Kenya)); Donaldson, R.W. (Univ. of British Columbia, Vancouver (Canada). Dept. of Electrical Engineering)

1993-07-01T23:59:59.000Z

420

The Simple Harmonic Rotor with Motion Hinged By of a Helicopter  

E-Print Network (OSTI)

Summary.--In simple harmonic oscillation of the helicopter with hinged blades, the tip-path plane is tilted with respect to the shaft in the plane of oscillation and in the plane perpendicular to it. The angles of tilt can be expressed as functions of angular velocity and acceleration. The influence ' of the acceleration term on the dynamic stability of the helicopter is small. The expressions for angles of tilt due to angular velocity can be simplified to the expressions obtained in previous work under assumptions of quasi-static conditions. 1. I~troductio~.--It has been shown in Ref. 1 that when the rotor shaft of a helicopter tilts with constant pitching velocity, the tip-path plane lags behind the shaft and also tilts Sideways. These angles of lag and sidetilt were found to be proportional to the pitching velocity of the shaft and the following expressions were derived: Oal _. Of yD............. (1)

J. K. Zbrozek; Dipl. Eng; J. K. Zbxoze

1949-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Epitaxial Growth of GaN-based LEDs on Simple Sacrificial Substrates  

SciTech Connect

The objective of this project is to produce alternative substrate technologies for GaN-based LEDs by developing an ALD interlayer of Al{sub 2}O{sub 3} on sacrificial substrates such as ZnO and Si. A sacrificial substrate is used for device growth that can easily be removed using a wet chemical etchant leaving only the thin GaN epi-layer. After substrate removal, the GaN LED chip can then be mounted in several different ways to a metal heat sink/reflector and light extraction techniques can then be applied to the chip and compared for performance. Success in this work will lead to high efficiency LED devices with a simple low cost fabrication method and high product yield as stated by DOE goals for its solid state lighting portfolio.

Ian Ferguson; Chris Summers

2009-12-31T23:59:59.000Z

422

Patterns without patches: Hierarchical assembly of complex structures from simple building blocks  

E-Print Network (OSTI)

Nanoparticles with "sticky patches" have long been proposed as building blocks for the self-assembly of complex structures. The synthetic realizability of such patchy particles, however, greatly lags behind predictions of patterns they could form. Using computer simulations, we show that structures of the same genre can be obtained from a solution of simple isotropic spheres, provided control only over their sizes and a small number of binding affinities. In a first step, finite clusters of well-defined structure and composition emerge from natural dynamics with high yield. In effect a kind of patchy particle, these clusters can further assemble into a variety of complex superstructures, including filamentous networks, ordered sheets, and highly porous crystals.

Michael Grnwald; Phillip L. Geissler

2013-10-02T23:59:59.000Z

423

Nonlinear analysis of a simple model of temperature evolution in a satellite  

E-Print Network (OSTI)

We analyse a simple model of the heat transfer to and from a small satellite orbiting round a solar system planet. Our approach considers the satellite isothermal, with external heat input from the environment and from internal energy dissipation, and output to the environment as black-body radiation. The resulting nonlinear ordinary differential equation for the satellite's temperature is analysed by qualitative, perturbation and numerical methods, which show that the temperature approaches a periodic pattern (attracting limit cycle). This approach can occur in two ways, according to the values of the parameters: (i) a slow decay towards the limit cycle over a time longer than the period, or (ii) a fast decay towards the limit cycle over a time shorter than the period. In the first case, an exactly soluble average equation is valid. We discuss the consequences of our model for the thermal stability of satellites.

Jose Gaite; Angel Sanz-Andrs; Isabel Prez-Grande

2007-07-23T23:59:59.000Z

424

A Simple Distributed Particle Swarm Optimization for Dynamic and Noisy Environments  

SciTech Connect

In this paper, we present a Simple Distributed Particle Swarm Optimization (SDPSO) algorithm that can be used to track the optimal solution in a dynamic and noisy environment. The classic PSO algorithm lacks the ability to track changing optimum in a dynamic environment. Several approaches have been investigated to enhance the PSO algorithm s ability in dynamic environments. However, in dealing with dynamic environments, these approaches have lost PSO s original strengths of decentralized control and ease of implementation. The SDPSO algorithm proposed in this paper maintains these classic PSO features as well as provides the optimum result tracking capability in dynamic environments. In this research, the DF1 multimodal dynamic environment generator proposed by Morrison and De Jong is used to evaluate the classic PSO, SDPSO and other two adaptive PSOs.

Cui, Xiaohui [ORNL; Potok, Thomas E [ORNL

2009-01-01T23:59:59.000Z

425

The Bose Gas and Asymmetric Simple Exclusion Process on the Half-Line  

E-Print Network (OSTI)

In this paper we find explicit formulas for: (1) Green's function for a system of one-dimensional bosons interacting via a delta-function potential with particles confined to the positive half-line; and (2) the transition probability for the one-dimensional asymmetric simple exclusion process (ASEP) with particles confined to the nonnegative integers. These are both for systems with a finite number of particles. The formulas are analogous to ones obtained earlier for the Bose gas and ASEP on the line and integers, respectively. We use coordinate Bethe Ansatz appropriately modified to account for confinement of the particles to the half-line. As in the earlier work, the proof for the ASEP is less straightforward than for the Bose gas.

Tracy, Craig A

2012-01-01T23:59:59.000Z

426

Hadron structure in a simple model of quark/nuclear matter  

SciTech Connect

We study a simple model for one-dimensional hadron matter with many of the essential features needed for examining the transition from nuclear to quark matter and the limitations of models based upon hadron rather than quark degrees of freedom. The dynamics are generated entirely by the quark confining force and exchange symmetry. Using Monte Carlo techniques, the ground-state energy, single-quark momentum distribution, and quark correlation function are calculated for uniform matter as a function of density. The quark confinement scale in the medium increases substantially with increasing density. This change is evident in the correlation function and momentum distribution, in qualitative agreement with the changes observed in deep-inelastic lepton scattering. Nevertheless, the ground-state energy is smooth throughout the transition to quark matter and is described remarkably well by an effective hadron theory based on a phenomenological hadron-hadron potential.

Horowitz, C.J.; Moniz, E.J.; Negele, J.W.

1985-04-01T23:59:59.000Z

427

Simple economic evaluation and applications experiments for photovoltaic systems for remote sites  

DOE Green Energy (OSTI)

A simple evaluation of the cost effectiveness of photovoltaic systems is presented. The evaluation is based on a calculation of breakeven costs of photovoltaics (PV) arrays with the levelized costs of two alternative energy sources (1) extension of the utility grid and (2) diesel generators. A selected number of PV applications experiments that are in progress in remote areas of the US are summarized. These applications experiments range from a 23 watt insect survey trap to a 100 kW PV system for a national park complex. It is concluded that PV systems for remote areas are now cost effective in remote small applications with commercially available technology and will be cost competitive for intermediate scale systems (approx. 10 kW) in the 1980s if the DOE 1986 Commercial Readiness Goals are achieved.

Rios, M. Jr.

1980-01-01T23:59:59.000Z

428

A simple approach to improve lightning performance of an uprated substation  

Science Conference Proceedings (OSTI)

This paper presents a simple method to minimize lightning surges entering an uprated or compact substation. A severe lightning stress is caused by a backflashover in close proximity to the substation. Feasibility of uprating is based on the surge arrester technology available at present. However, some aspects of line design offer opportunities in reducing frequency and severity of lightning surges imposed on the substation. The tower surge response adds an inductive overshoot only during the front of the stroke which reduces considerably during the tail. If backflashover does not occur before reflections from adjacent towers arrive, it is unlikely to occur at all. Use of guys and underbuilt ground wires in the limiting distance will produce reflections with larger magnitude and reduce the effective surge impedance of the tower. This would not only reduce backflashover frequency but will also minimize crest and duration of surges entering the substation.

Harrington, R.J.; Mueen, M. [George Washington Univ., Washington, DC (United States). Dept. of Electrical Engineering and Computer Science

1996-07-01T23:59:59.000Z

429

A simple method to downscale daily wind statistics to hourly wind data  

E-Print Network (OSTI)

Wind is the principal driver in the wind erosion models. The hourly wind speed data were generally required for precisely wind erosion modeling. In this study, a simple method to generate hourly wind speed data from daily wind statistics (daily average and maximum wind speeds together or daily average wind speed only) was established. A typical windy location with 3285 days (9 years) measured hourly wind speed data were used to validate the downscaling method. The results showed that the overall agreement between observed and simulated cumulative wind speed probability distributions appears excellent, especially for the wind speeds greater than 5 m s-1 range (erosive wind speed). The results further revealed that the values of daily average erosive wind power density (AWPD) calculated from generated wind speeds fit the counterparts computed from measured wind speeds well with high models' efficiency (Nash-Sutcliffe coefficient). So that the hourly wind speed data can be predicted from daily average and maximu...

Guo, Zhongling

2013-01-01T23:59:59.000Z

430

A simple model for cyclic variations in a spark-ignition engine  

DOE Green Energy (OSTI)

We propose a simple, physically oriented model that explains important characteristics of cyclic combustion variations in spark-ignited engines. A key model feature is the interaction between stochastic, small-scale fluctuations in engine parameters and nonlinear deterministic coupling between successive engine cycles. Prior-cycle effects are produced by residual cylinder gas which alters volume-average in-cylinder equivalence ratio and subsequent combustion efficiency. The model`s simplicity allows rapid simulation of thousands of engine cycles, permitting in-depth statistical studies of cyclic variation patterns. Additional mechanisms for stochastic and prior-cycle effects can be added to evaluate their impact on overall engine performance. We find good agreement with our experimental data.

Daw, C.S.; Green, J.B. Jr.; Kennel, M.B.; Thomas, J.F. [and others

1996-11-01T23:59:59.000Z

431

Simple alternative to the Hardy-Ramanujan-Rademacher formula for p(N)  

E-Print Network (OSTI)

A recent paper examined the global structure of integer partitions sequences and, via combinatorial analysis using modular arithmetic, derived a closed form expression for a map from (N, M) to the set of all partitions of a positive integer N into exactly M positive integer summands. The output of the IPS map was a "matrix" having M columns and a number of rows equal to p[N, M], the number of partitions of N into M parts. The global structure of integer partition sequences (IPS) is that of a complex tree. In this paper, we examine the structure of the IPS tree and, by counting the number of directed paths through the tree, obtain a simple formula which gives, in closed form, the total number of partitions of N into exactly M parts. By summing over M, we obtain a transparent alternative to the Hardy-Ramanujan-Rademacher formula for p(N).

N. M. Chase

2004-04-22T23:59:59.000Z

432

A simple model for the distribution of quiet Sun magnetic field strengths  

E-Print Network (OSTI)

We derive a first order linear differential equation describing the shape of the probability density function of magnetic field strengths in the quiet Sun (PDF). The modeling is very schematic. It considers convective motions which continuously supply and withdraw magnetic structures. In addition, a magnetic amplification mechanism increases the field strength up to a threshold that cannot be exceeded. These three basic ingredients provide PDFs in good agreement with the PDFs produced by realistic numerical simulations of magneto convection, as well as with quiet Sun PDFs inferred from observations. In particular, the distribution is approximately lognormal, and it produces an excess of magnetic fields (i.e., a 'hump' in the distribution) right before the maximum field strength. The success of this simple model may indicate that only a few basic ingredients shape the quiet Sun PDF. Our approach provides a concise parametric representation of the PDF, as required to develop automatic methods of diagnostics.

J. Sanchez Almeida

2006-11-22T23:59:59.000Z

433

Mapping local hippocampal changes in Alzheimer's disease and normal ageing with MRI at 3 Tesla  

E-Print Network (OSTI)

Mapping local hippocampal changes in Alzheimer's disease and normal ageing with MRI at 3 Tesla and Alzheimer's disease based on high resolution MRI at 3 Tesla. T1-weighted images were acquired from 19

Thompson, Paul

434

Guidance on Utility Rate Estimations and Weather Normalization in an ESPC  

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

Guidance on Utility Rate Estimations and Weather Normalization in an ESPC Guidance on Utility Rate Estimations and Weather Normalization in an ESPC Subject: The use of estimated energy rates 1 and normalized weather 2 data in determining contractor (ESCO) payments under an energy savings performance contract (ESPC). Summary: As explained below, the use of estimated energy rates and normalized weather data is permitted when determining ESCO payments under an ESPC. Authority: The authority for ESPCs is established in the National Energy Conservation Policy Act (NECPA), as amended. (42 U.S.C. 8287 et seq.) Implementing regulations for ESPCs are at 10 CFR Part 436 subpart B. Guidance: Section 801(a)(2)(B) of NECPA requires that "[a]aggregate annual payments by an agency ... may not exceed the amount ... the agency would have paid (as estimated

435

Guidance on Utility Rate Estimations and Weather Normalization in an ESPC  

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

Guidance on Utility Rate Estimations and Weather Normalization in an ESPC Guidance on Utility Rate Estimations and Weather Normalization in an ESPC Subject: The use of estimated energy rates 1 and normalized weather 2 data in determining contractor (ESCO) payments under an energy savings performance contract (ESPC). Summary: As explained below, the use of estimated energy rates and normalized weather data is permitted when determining ESCO payments under an ESPC. Authority: The authority for ESPCs is established in the National Energy Conservation Policy Act (NECPA), as amended. (42 U.S.C. 8287 et seq.) Implementing regulations for ESPCs are at 10 CFR Part 436 subpart B. Guidance: Section 801(a)(2)(B) of NECPA requires that "[a]aggregate annual payments by an agency ... may not exceed the amount ... the agency would have paid (as estimated

436

Numerical Solution of the Vertical Structure Equation in the Normal Mode Method  

Science Conference Proceedings (OSTI)

In a diagnostic study by expanding global data in normal mode functions, Kasahara and Puri found that for zonal wavenumber one, even the seventh vertical mode (the highest mode they presented) contains about 50% of the energy of the external ...

Y. K. Sasaki; L. P. Chang

1985-05-01T23:59:59.000Z

437

East Coast (PADD 1) Gas Plant Production of Normal Butane-Butylene ...  

U.S. Energy Information Administration (EIA)

East Coast (PADD 1) Gas Plant Production of Normal Butane-Butylene (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 ...

438

U.S. Refinery and Blender Net Production of Normal Butane ...  

U.S. Energy Information Administration (EIA)

U.S. Refinery and Blender Net Production of Normal Butane (Thousand Barrels) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1993-884: 268: 4,851: 6,387: 6,489 ...

439

Numerical Investigations with a Hybrid IsentropicSigma Model. Part I: Normal-Mode Characteristics  

Science Conference Proceedings (OSTI)

In a validation experiment of a hybrid isentropicsigma coordinate primitive equation model developed at the University of Wisconsin (the UW ??? model), an initial value technique is used to investigate numerically the normal-mode characteristics ...

R. Bradley Pierce; Fred M. Reames; Tom H. Zapotocny; Donald R. Johnson; Bart J. Wolf

1991-09-01T23:59:59.000Z

440

Normalization and Calibration of Geostationary Satellite Radiances for the international Satellite Cloud Climatology Project  

Science Conference Proceedings (OSTI)

Procedures are described for normalizing the radiometric calibration of image radiances obtained from the suite of geostationary weather satellites that contributed data to the international Satellite Cloud Climatology Project. The key step is ...

Yves Desormeaux; William B. Rossow; Christopher L. Brest; G. Garrett Campbell

1993-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

On the Role of Ozone in the Stability of Rossby Normal Modes  

Science Conference Proceedings (OSTI)

The role of ozone in the linear stability of Rossby normal modes is examined in a continuously stratified, extratropical baroclinic atmosphere. The flow is described by coupled equations for the quasi-geostrophic potential vorticity and ozone ...

Terrence R. Nathan

1989-07-01T23:59:59.000Z

442

NOAA's 19812010 U.S. Climate Normals: An Overview  

Science Conference Proceedings (OSTI)

The National Oceanic and Atmospheric Administration (NOAA) released the 19812010 U.S. Climate Normals in July 2011, representing the latest decadal installment of this long-standing product line. Climatic averages (and other statistics) of temperature, ...

Anthony Arguez; Imke Durre; Scott Applequist; Russell S. Vose; Michael F. Squires; Xungang Yin; Richard R. Heim Jr.; Timothy W. Owen

2012-11-01T23:59:59.000Z

443

Spectral Representation of Three-Dimensional Global Data by Expansion in Normal Mode Functions  

Science Conference Proceedings (OSTI)

To represent atmospheric data spectrally in three indices (zonal wavenumber, and meridional and vertical modal indices), we propose to use three-dimensional normal mode functions (NMF's) to express the wind and mass fields simultaneously. The NMF'...

Akira Kasahara; Kamal Puri

1981-01-01T23:59:59.000Z

444

A Synoptic Evaluation of Normal Mode Initialization Experiments with the NMC Nested Grid Model  

Science Conference Proceedings (OSTI)

The Regional Analysis and Forecast System at the National Meteorological Center consists of an optimum interpolation objective analysis scheme, an adiabatic nonlinear normal model initialization (NNMI) and a hemispheric Nested Grid Model (NGM) to ...

Frederick H. Carr; Richard L. Wobus; Ralph A. Petersen

1989-12-01T23:59:59.000Z

445

Lagrangian Drifter Dispersion in the Surf Zone: Directionally Spread, Normally Incident Waves  

Science Conference Proceedings (OSTI)

Lagrangian drifter statistics in a surf zone wave and circulation model are examined and compared to single- and two-particle dispersion statistics observed on an alongshore uniform natural beach with small, normally incident, directionally ...

Matthew Spydell; Falk Feddersen

2009-04-01T23:59:59.000Z

446

Method for distinguishing normal and transformed cells using G1 kinase inhibitors  

DOE Patents (OSTI)

A G{sub 1} phase kinase inhibitor is applied in a low concentration to a population of normal and transformed mammalian cells. The concentration of G{sub 1} phase kinase inhibitor is selected to reversibly arrest normal mammalian cells in the G{sub 1} cell cycle without arresting growth of transformed cells. The transformed cells may then be selectively identified and/or cloned for research or diagnostic purposes. The transformed cells may also be selectively killed by therapeutic agents that do not affect normal cells in the G{sub 1} phase, suggesting that such G{sub 1} phase kinase inhibitors may form an effective adjuvant for use with chemotherapeutic agents in cancer therapy for optimizing the killing dose of chemotherapeutic agents while minimizing undesirable side effects on normal cells.

Crissman, H.A.; Gadbois, D.M.; Tobey, R.A.; Bradbury, E.M.

1991-12-31T23:59:59.000Z

447

An Attempt to Normalize the Hailstorm Variability for the Evaluation of Cloud Seeding  

Science Conference Proceedings (OSTI)

Procedures have been developed from relationships between parameters of hailstone size distributions and storm thermodynamics to normalize the effects of storm thermodynamics of integral hail parameters observed at the ground. Hail parameters ...

Lawrence Cheng

1987-04-01T23:59:59.000Z

448

Method for distinguishing normal and transformed cells using G1 kinase inhibitors  

DOE Patents (OSTI)

A G.sub.1 phase kinase inhibitor is applied in a low concentration to a population of normal and transformed mammalian cells. The concentration of G.sub.1 phase kinase inhibitor is selected to reversibly arrest normal mammalian cells in the G.sub.1 cell cycle without arresting growth of transformed cells. The transformed cells may then be selectively identified and/or cloned for research or diagnostic purposes. The transformed cells may also be selectively killed by therapeutic agents that do not affect normal cells in the G.sub.1 phase, suggesting that such G.sub.1 phase kinase inhibitors may form an effective adjuvant for use with chemotherapeutic agents in cancer therapy for optimizing the killing dose of chemotherapeutic agents while minimizing undesirable side effects on normal cells.

Crissman, Harry A. (Los Alamos, NM); Gadbois, Donna M. (Los Alamos, NM); Tobey, Robert A. (Los Alamos, NM); Bradbury, E. Morton (Santa Fe, NM)

1993-01-01T23:59:59.000Z

449

Blood Vessel Normalization in the Hamster Oral Cancer Model for Experimental Cancer Therapy Studies  

Science Conference Proceedings (OSTI)

Normalization of tumor blood vessels improves drug and oxygen delivery to cancer cells. The aim of this study was to develop a technique to normalize blood vessels in the hamster cheek pouch model of oral cancer. Materials and Methods: Tumor-bearing hamsters were treated with thalidomide and were compared with controls. Results: Twenty eight hours after treatment with thalidomide, the blood vessels of premalignant tissue observable in vivo became narrower and less tortuous than those of controls; Evans Blue Dye extravasation in tumor was significantly reduced (indicating a reduction in aberrant tumor vascular hyperpermeability that compromises blood flow), and tumor blood vessel morphology in histological sections, labeled for Factor VIII, revealed a significant reduction in compressive forces. These findings indicated blood vessel normalization with a window of 48 h. Conclusion: The technique developed herein has rendered the hamster oral cancer model amenable to research, with the potential benefit of vascular normalization in head and neck cancer therapy.

Ana J. Molinari; Romina F. Aromando; Maria E. Itoiz; Marcela A. Garabalino; Andrea Monti Hughes; Elisa M. Heber; Emiliano C. C. Pozzi; David W. Nigg; Veronica A. Trivillin; Amanda E. Schwint

2012-07-01T23:59:59.000Z

450

Method for distinguishing normal and transformed cells using G1 kinase inhibitors  

DOE Patents (OSTI)

A G[sub 1] phase kinase inhibitor is applied in a low concentration to a population of normal and transformed mammalian cells. The concentration of G[sub 1] phase kinase inhibitor is selected to reversibly arrest normal mammalian cells in the G[sub 1] cell cycle without arresting growth of transformed cells. The transformed cells may then be selectively identified and/or cloned for research or diagnostic purposes. The transformed cells may also be selectively killed by therapeutic agents that do not affect normal cells in the G[sub 1] phase, suggesting that such G[sub 1] phase kinase inhibitors may form an effective adjuvant for use with chemotherapeutic agents in cancer therapy for optimizing the killing dose of chemotherapeutic agents while minimizing undesirable side effects on normal cells.

Crissman, H.A.; Gadbois, D.M.; Tobey, R.A.; Bradbury, E.M.

1993-02-09T23:59:59.000Z

451

Global Normal-Mode Rossby Waves Observed in Stratospheric Ozone Data  

Science Conference Proceedings (OSTI)

Westward-propagating Rossby normal-mode planetary waves are documented in stratospheric ozone data using Solar Backscatter Ultraviolet (SBUV) satellite measurements. These modes are evidenced by enhanced spectral power and near-global coherence ...

William J. Randel

1993-02-01T23:59:59.000Z

452

EA-1123: Transfer of Normal and Low-Enriched Uranium Billets...  

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

evaluates the environmental impacts of the proposal to transfer approximately 710,000 kilograms (1,562,000 pounds) of unneeded normal and low-enriched uranium to the United...

453

U.S. Gas Plant Production of Normal Butane-Butylene (Thousand ...  

U.S. Energy Information Administration (EIA)

U.S. Gas Plant Production of Normal Butane-Butylene (Thousand Barrels) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1981: 7,016: 5,987: ...

454

U.S. Gas Plant Production of Normal Butane-Butylene (Thousand ...  

U.S. Energy Information Administration (EIA)

U.S. Gas Plant Production of Normal Butane-Butylene (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; ...

455

U.S. Normal Butane-Butylene Stocks at Natural Gas Processing ...  

U.S. Energy Information Administration (EIA)

U.S. Normal Butane-Butylene Stocks at Natural Gas Processing Plants (Thousand Barrels) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1993: ...

456

U.S. Refinery Normal Butane/Butylene Shell Storage Capacity as ...  

U.S. Energy Information Administration (EIA)

U.S. Refinery Normal Butane/Butylene Shell Storage Capacity as of January 1 (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 ...

457

U.S. Ending Stocks of Normal Butane-Butylene (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

U.S. Ending Stocks of Normal Butane-Butylene (Thousand Barrels) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1981: 26,098: 24,979: 24,689: ...

458

The Fueling of Nuclear Activity: II. The Bar Properties of Seyfert and Normal Galaxies  

E-Print Network (OSTI)

We use a recent near-infrared imaging survey of samples of Seyfert and normal galaxies to study the role of bars in the fueling of nuclear activity. The active galaxy sample includes Seyfert galaxies in the Revised Shapely-Ames (RSA) and Sandage & Tammann's (1987) extension to this catalog. The normal galaxies were selected to match the Seyfert sample in Hubble type, redshift, inclination and blue luminosity. All the galaxies in both samples classified as barred in the RSA catalog are also barred in the near-infrared. In addition, ~55% of the galaxies classified as non-barred in the RSA show evidence for bars at 2.1 microns. Overall, ~70% of the galaxies observed show evidence for bar structures. The incidence of bars in the Seyfert and normal galaxies is similar, suggesting Seyfert nuclei do not occur preferentially in barred systems. Furthermore, a slightly higher percentage of normal galaxies have multiple-bar structures.

John S. Mulchaey; Michael W. Regan

1997-04-11T23:59:59.000Z

459

Asymptotic normality and efficiency of the maximum likelihood estimator for the parameter  

E-Print Network (OSTI)

a distant site. We prove an asymptotic normality result for this consistent estimator as the distant site tends to infinity and establish that it achieves the Cramér-Rao bound. We also explore in a simulation

Paris-Sud XI, Université de

460

CRITICAL FIELD FOR SUPERCONDUCTIVITY AND LOW-TEMPERATURE NORMAL-STATE HEAT CAPACITY OF TUNGSTEN  

E-Print Network (OSTI)

LOW-TEMPERATURE NORMAL-STATE HEAT CAPACITY OF TUNGSTEN B. B.Temperature Nonnal-State Heat Capacity of Tungsten* B. n.single crystal This work, heat capacity 57,000a 4 d' 1&11.

Triplett, B.B.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degree-day normals simple" 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

Normal Mode Initialization and the Generation of Gravity Waves by Quasi-Geostrophic Forcing  

Science Conference Proceedings (OSTI)

Several numerical weather prediction models now use nonlinear normal-mode initialization schemes. These schemes describe balanced states which act to limit the initial presence of high-frequency gravity waves and their subsequent growth by ...

Ronald M. Errico

1982-03-01T23:59:59.000Z

462

The Binormal Distribution: A Distribution for Representing Asymmetrical but Normal-like Weather Elements  

Science Conference Proceedings (OSTI)

A new probability distribution, which has some of the advantages of the normal distribution but avoids the constraint of symmetry undesired in many applications, is presented. The distribution, called binormal, has three parameters, as the ...

Zoltan Toth; Tamas Szentimrey

1990-01-01T23:59:59.000Z

463

The Scaling Exponent Distinguishes the Injured Sick Hearts Against Normal Healthy Hearts  

Science Conference Proceedings (OSTI)

We analyzed heartbeat?intervals with our own program of detrended fluctuation analysis (DFA) to quantify the irregularity of the heartbeat. The present analysis revealed that normal healthy subjects have the scaling exponent of 1.0

Toru Yazawa; Katsunori Tanaka

2009-01-01T23:59:59.000Z

464

A Review of Radionuclide Release From HTGR Cores During Normal Operation  

Science Conference Proceedings (OSTI)

The release of radionuclides from the core of high-temperature gas-cooled reactors (HTGRs) -- especially direct-cycle HTGRs -- during normal plant operation has significant design, O&M, and safety implications. A hallmark philosophy of all modern HTGRs is to design the plant so that radionuclides are retained in the core during normal operation and postulated accidents. The key to achieving this safety goal is twofold: (1) a reliance on ceramic-coated fuel particles for primary fission product containmen...

2004-03-04T23:59:59.000Z

465

Inverse measurement of stiffness by the normalization technique for J-integral fracture toughness  

Science Conference Proceedings (OSTI)

The single specimen normalization technique for J-integral fracture toughness has been successfully employed by several researchers to study the strongly non-linear fracture response of ductile semicrystalline polymers. As part of the normalization technique the load and the plastic component of displacement are normalized. The normalized data is then fit with a normalization function that approximates a power law for small displacements that are dominated by blunting and smoothly transitions to a linear relationship for large displacements that are dominated by stable crack extension. Particularly for very ductile polymers the compliance term used to determine the plastic displacement can dominate the solution and small errors in determining the elastic modulus can lead to large errors in the normalization or even make it ill-posed. This can be further complicated for polymers where the elastic modulus is strong strain rate dependent and simply using a 'quasistatic' modulus from a dogbone measurement may not equate to the dominant strain rate in the compact tension specimen. The current work proposes directly measuring the compliance of the compact tension specimen in the solution of J-integral fracture toughness and then solving for the elastic modulus. By comparison with a range of strain rate data the dominant strain rate can then be determined.

Brown, Eric [Los Alamos National Laboratory

2012-06-07T23:59:59.000Z

466

Effects of burial history, rock ductility and recovery magnitude on inversion of normal faulted strata  

E-Print Network (OSTI)

Inversion of normal faults at different burial depths is studied using physical models constructed with rock and deformed at confining pressure. Models consist of a 1 cm thick limestone layer above a fault dipping 70 in a rigid medium, and are subjected to a two-stage deformation path of layer-parallel extension followed by coaxial contraction. To investigate the effects of burial depth and relative ductility on kinematics of inversion, five model suites were run in which confining pressure and recovery magnitudes were varied. In all models, a normal fault forms in the limestone during extension. Subsequent inversion is accommodated in the limestone by reverse slip on the normal fault, creation and movement along new reverse faults, and distributed fracturing and folding. The relative contribution of these mechanisms depends on the relative ductility of the rock and magnitude of inversion. Reverse slip on the normal fault and distributed fracturing occur during early stages of inversion and new reverse faults form at intermediate stages. During late stage inversion, strata with low mean ductility shorten primarily by reverse slip on the pre-existing normal fault, whereas strata with high mean ductility shorten by continued slip on reverse faults. Evidence for inversion is provided by superposed fracture fabrics in the footwall at early stages (100% recovery). This change in fracture fabric during inversion could lead to an overpressured footwall in natural inversion structures. Reverse reactivation of the normal faults may occur during coaxial contraction even though such faults are unfavorably oriented assuming typical rock friction behavior and a homogeneous stress state. Localized reverse slip on normal faults is favored when strata display low ductility and less favored when strata work-harden during extension, however, the models show that the final inversion geometry is dependent on the ductility during both phases of deformation. Even a fault that is work-hardened during extension can reactivate if the ductility during contraction is low enough.

Kuhle, Nathan John

2001-01-01T23:59:59.000Z

467

A method for estimating direct normal solar irradiation from satellite data for a tropical environment  

SciTech Connect

In order to investigate a potential use of concentrating solar power technologies and select an optimum site for these technologies, it is necessary to obtain information on the geographical distribution of direct normal solar irradiation over an area of interest. In this work, we have developed a method for estimating direct normal irradiation from satellite data for a tropical environment. The method starts with the estimation of global irradiation on a horizontal surface from MTSAT-1R satellite data and other ground-based ancillary data. Then a satellite-based diffuse fraction model was developed and used to estimate the diffuse component of the satellite-derived global irradiation. Based on this estimated global and diffuse irradiation and the solar radiation incident angle, the direct normal irradiation was finally calculated. To evaluate its performance, the method was used to estimate the monthly average hourly direct normal irradiation at seven pyrheliometer stations in Thailand. It was found that values of monthly average hourly direct normal irradiation from the measurements and those estimated from the proposed method are in reasonable agreement, with a root mean square difference of 16% and a mean bias of -1.6%, with respect to mean measured values. After the validation, this method was used to estimate the monthly average hourly direct normal irradiation over Thailand by using MTSAT-1R satellite data for the period from June 2005 to December 2008. Results from the calculation were displayed as hourly and yearly irradiation maps. These maps reveal that the direct normal irradiation in Thailand was strongly affected by the tropical monsoons and local topography of the country. (author)

Janjai, Serm [Solar Energy Research Laboratory, Department of Physics, Faculty of Science, Silpakorn University, Nakhon Pathom 73000 (Thailand)

2010-09-15T23:59:59.000Z

468

A simple and efficient evolution operator for time-dependent Hamiltonians: the Taylor expansion  

SciTech Connect

No compact expression of the evolution operator is known when the Hamiltonian operator is time dependent, like when Hamiltonian operators describe, in a semiclassical limit, the interaction of a molecule with an electric field. It is well known that Magnus [N. Magnus, Commun. Pure Appl. Math. 7, 649 (1954)] has derived a formal expression where the evolution operator is expressed as an exponential of an operator defined as a series. In spite of its formal simplicity, it turns out to be difficult to use at high orders. For numerical purposes, approximate methods such as 'Runge-Kutta' or 'split operator' are often used usually, however, to a small order (<5), so that only small time steps, about one-tenth or one-hundredth of the field cycle, are acceptable. Moreover, concerning the latter method, split operator, it is only very efficient when a diagonal representation of the kinetic energy operator is known. The Taylor expansion of the evolution operator or the wave function about the initial time provides an alternative approach, which is very simple to implement and, unlike split operator, without restrictions on the Hamiltonian. In addition, relatively large time steps (up to the field cycle) can be used. A two-level model and a propagation of a Gaussian wave packet in a harmonic potential illustrate the efficiency of the Taylor expansion. Finally, the calculation of the time-averaged absorbed energy in fluoroproprene provides a realistic application of our method.

Lauvergnat, David; Blasco, Sophie; Chapuisat, Xavier; Nauts, Andre [Laboratoire de Chimie Physique, Universite Paris-Sud, CNRS, UMR8000, Batiment 490, Orsay F-91405 (France); Laboratoire de Chimie Physique, Universite Paris-Sud, CNRS, UMR8000, Batiment 490, Orsay F-91405 (France); Unite PAMO (Departement de Physique), Universite Catholique de Louvain, 2 Chemin du Cyclotron, 1348 Louvain-la-Neuve (Belgium)

2007-05-28T23:59:59.000Z

469

A simple method for enzymatic synthesis of unlabeled and radiolabeled Hydroxycinnamate-CoA  

SciTech Connect

Hydroxycinnamate coenzyme A (CoA) thioesters are substrates for biosynthesis of lignin and hydroxycinna- mate esters of polysaccharides and other polymers. Hence, a supply of these substrates is essential for investigation of cell wall biosynthesis. In this study, three recombinant enzymes, caffeic acid 3-O-methyltransferase, 4-coumarate- CoA ligase 1, and 4-coumarate-CoA ligase 5, were cloned from wheat, tobacco, and Arabidopsis, respectively, and were used to synthesize {sup 14}C-feruloyl-CoA, caffeoyl-CoA, p-coumaroyl-CoA, feruloyl-CoA, and sinapoyl-CoA. The corresponding hydroxycinnamoyl-CoA thioesters were high-performance liquid chromatography purified, the only extraction/purification step necessary, with total yields between 88-95%. Radiolabeled {sup 14}C-feruloyl-CoA was generated from caffeic acid and S-adenosyl-{sup 14}C-methionine under the combined action of caffeic acid 3-O-methyltransferase and 4-coumarate-CoA ligase 1. About 70% of {sup 14}C-methyl groups from S-adenosyl methionine were incorporated into the final product. The methods presented are simple, fast, and efficient for the preparation of the hydroxycinnamate thioesters.

Rautergarten, Carsten; Baidoo, Edward; Keasling, Jay; Vibe Scheller, Henrik

2011-07-20T23:59:59.000Z

470

Development of simple quantitative test for lack of field emission orthodoxy  

E-Print Network (OSTI)

This paper describes a simple quantitative test applicable to current-voltage data for cold field electron emission (CFE). It can decide whether individual reported field-enhancement-factor (FEF) values are spuriously large. The paper defines an "orthodox emission situation" by a set of ideal experimental, physical and mathematical conditions, and shows how (in these conditions) operating values of scaled barrier field (f) can be extracted from Fowler-Nordheim (FN) and Millikan-Lauritsen (ML) plots. By analyzing historical CFE experiments, which are expected to nearly satisfy the orthodoxy conditions, "apparently reasonable" and "clearly unreasonable" experimental ranges for f are found. These provide a test for lack of orthodoxy. For illustration, this test is applied to 17 post-1975 CFE data sets, mainly for carbon and semiconductor nanostructures. Some extracted f-value ranges are apparently reasonable (including many carbon results), some are clearly unreasonable. It is shown that this test applies to any field-emission diode geometry and any form of FN or ML plot. It is proved mathematically that, if the extracted f-value range is "unreasonably high", then FEF-values extracted by the usual literature method are spuriously large. Probably, all new field-emitter materials should be tested in this way. Appropriate data-analysis theory needs developing for non-orthodox emitters.

Richard G. Forbes

2012-09-28T23:59:59.000Z

471

High density flux of Co nanoparticles produced by a simple gas aggregation apparatus  

Science Conference Proceedings (OSTI)

Gas aggregation is a well known method used to produce clusters of different materials with good size control, reduced dispersion, and precise stoichiometry. The cost of these systems is relatively high and they are generally dedicated apparatuses. Furthermore, the usual sample production speed of these systems is not as fast as physical vapor deposition devices posing a problem when thick samples are needed. In this paper we describe the development of a multipurpose gas aggregation system constructed as an adaptation to a magnetron sputtering system. The cost of this adaptation is negligible and its installation and operation are both remarkably simple. The gas flow for flux in the range of 60-130 SCCM (SCCM denotes cubic centimeter per minute at STP) is able to completely collimate all the sputtered material, producing spherical nanoparticles. Co nanoparticles were produced and characterized using electron microscopy techniques and Rutherford back-scattering analysis. The size of the particles is around 10 nm with around 75 nm/min of deposition rate at the center of a Gaussian profile nanoparticle beam.

Landi, G. T.; Romero, S. A.; Santos, A. D. [Departamento de Fisica dos Materiais e Mecanica, Laboratorio de Materiais Magneticos, Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05314-970 Sao Paulo, SP (Brazil)

2010-03-15T23:59:59.000Z

472

Mixing-Demixing Phase Diagram for Simple Liquids in Non-Uniform Electric Fields  

E-Print Network (OSTI)

We deduce the mixing-demixing phase diagram for binary liquid mixtures in an electric field for various electrode geometries and arbitrary constitutive relation for the dielectric constant. By focusing on the behavior of the liquid-liquid interface, we produce simple analytic expressions for the dependence of the interface location on experimental parameters. We also show that the phase diagram contains regions where liquid separation cannot occur under any applied field. The analytic expression for the boundary "electrostatic binodal" line reveals that the regions' size and shape depend strongly on the dielectric relation between the liquids. Moreover, we predict the existence of an "electrostatic spinodal" line that identifies conditions where the liquids are in a metastable state. We finally construct the phase diagram for closed systems by mapping solutions onto those of an open system via an effective liquid composition. For closed systems at a fixed temperature and mixture composition, liquid separation occurs in a finite "window" of surface potential (or charge density). Larger potentials or charge densities counterintuitively destroy the interface, leading to liquid mixing. These results give valuable guides for experiments by providing easily testable predictions for how liquids behave in non-uniform electric fields.

Jennifer Galanis; Yoav Tsori

2013-07-17T23:59:59.000Z

473

Simple strategies for minimization of cooling water usage in binary power plants  

SciTech Connect

The geothermal resources which could be used for the production of electrical power in the United States are located for the most part in the semi-arid western regions of the country. The availability of ground or surface water in the quantity or quality desired for a conventional wet'' heat rejections system represents a barrier to the development of these resources with the binary cycle technology. This paper investigates some simple strategies to minimize the cooling water usage of binary power plants. The cooling water usage is reduced by increasing the thermal efficiency of the plant. Three methods of accomplishing this are considered here: increasing the average source temperature, by increasing the geofluid outlet temperature; decreasing pinch points on the heat rejection heat exchangers, increasing their size; and using internal recuperation within the cycle. In addition to the impact on water usage, the impact on cost-of-electricity is determined. The paper shows that some of these strategies can reduce the cooling water requirements 20 to 30% over that for a plant similar to the Heber Binary Plant, with a net reduction in the cost-of-electricity of about 15%. 13 refs., 4 figs., 3 tabs.

Bliem, C.J.; Mines, G.L. (EG and G Idaho, Inc., Idaho Falls, ID (USA))

1989-01-01T23:59:59.000Z

474

Simple strategies for minimization of cooling water usage in binary power plants  

SciTech Connect

The geothermal resources which could be used for the production of electrical power in the United States are located for the most part in the semi-arid western regions of the country. The availability of ground or surface water in the quantity or quality desired for a conventional wet'' heat rejections system represents a barrier to the development of these resources with the binary cycle technology. This paper investigates some simple strategies to minimize the cooling water usage of binary power plants. The cooling water usage is reduced by increasing the thermal efficiency of the plant. Three methods of accomplishing this are considered here: increasing the average source temperature, by increasing the geofluid outlet temperature; decreasing pinch points on the heat rejection heat exchangers, increasing their size; and using internal recuperation within the cycle. In addition to the impact on water usage, the impact on cost-of-electricity is determined. The paper shows that some of these strategies can reduce the cooling water requirements 20 to 30% over that for a plant similar to the Heber Binary Plant, with a net reduction in the cost-of-electricity of about 15%. 13 refs., 4 figs., 3 tabs.

Bliem, C.J.; Mines, G.L. (EG and G Idaho, Inc., Idaho Falls, ID (USA))

1989-01-01T23:59:59.000Z

475

A simple model for the quenching of pairing correlations effects in rigidly deformed rotational bands  

E-Print Network (OSTI)

Using Chandrasekhar's S-type coupling between rotational and intrinsic vortical modes one may simply reproduce the HFB dynamical properties of rotating nuclei within Routhian HF calculations free of pairing correlations yet constrained on the relevant so-called Kelvin circulation operator. From the analogy between magnetic and rotating systems, one derives a model for the quenching of pairing correlations with rotation, introducing a critical angular velocity -- analogous to the critical field in supraconductors -- above which pairing vanishes. Taking stock of this usual model, it is then shown that the characteristic behavior of the vortical mode angular velocity as a function of the global rotation angular velocity can be modelised by a simple two parameter formula, both parameters being completely determined from properties of the band-head (zero-spin) HFB solution. From calculation in five nuclei, the validity of this modelised Routhian approach is assessed. It is clearly shown to be very good in cases where the evolution of rotational properties is only governed by the coupling between the global rotation and the pairing-induced intrinsic vortical currents. It therefore provides a sound ground base for evaluating the importance of coupling of rotation with other modes (shape distortions, quasiparticle degrees of freedom).

P. Quentin; H. Laftchiev; D. Samsoen; I. N. Mikhailov

2003-07-25T23:59:59.000Z

476

Modeling of the solids transportation within an industrial rotary dryer: A simple model  

SciTech Connect

To better understand the underlying phenomena taking place in an industrial rotary dryer and to determine the optimum operating conditions, a simulator in which the solids transportation, the gas flow, and the heat and mass transfer are modeled is currently being developed. This paper describes the use of interactive perfect mixers in series to model the solids transportation within an industrial rotary dryer, on the basis of an experimental residence time distribution curve (RTD). Two simple models are proposed: a series of perfect well-mixed interacting tanks and a modified Cholette-Cloutier model. The first model is not able to account for the nonideal behavior of the solids transportation in the rotary dryer. To account for the characteristic extended tail of the RTD curves observed in industrial dryers, in a second model, the solid phase is divided between an active and a dead zone. This model, with 36 cells and 25% of the volume occupied by the dead zones, modeled very well the industrial RTD curve. In addition, the model produces bed depth and axial velocity profiles that are consistent with those reported in the literature.

Duchesne, C.; Thibault, J.; Bazin, C. [Laval Univ., Sainte-Foy, Quebec (Canada)] [Laval Univ., Sainte-Foy, Quebec (Canada)

1996-07-01T23:59:59.000Z

477

Distinct p53 genomic binding patterns in normal and cancer-derived human cells  

Science Conference Proceedings (OSTI)

We report here genome-wide analysis of the tumor suppressor p53 binding sites in normal human cells. 743 high-confidence ChIP-seq peaks representing putative genomic binding sites were identified in normal IMR90 fibroblasts using a reference chromatin sample. More than 40% were located within 2 kb of a transcription start site (TSS), a distribution similar to that documented for individually studied, functional p53 binding sites and, to date, not observed by previous p53 genome-wide studies. Nearly half of the high-confidence binding sites in the IMR90 cells reside in CpG islands, in marked contrast to sites reported in cancer-derived cells. The distinct genomic features of the IMR90 binding sites do not reflect a distinct preference for specific sequences, since the de novo developed p53 motif based on our study is similar to those reported by genome-wide studies of cancer cells. More likely, the different chromatin landscape in normal, compared with cancer-derived cells, influences p53 binding via modulating availability of the sites. We compared the IMR90 ChIPseq peaks to the recently published IMR90 methylome1 and demonstrated that they are enriched at hypomethylated DNA. Our study represents the first genome-wide, de novo mapping of p53 binding sites in normal human cells and reveals that p53 binding sites reside in distinct genomic landscapes in normal and cancer-derived human cells.

Botcheva K.; McCorkle S. R.; McCombie W. R.; Dunn J. J.; Anderson C. W.

2011-12-15T23:59:59.000Z

478

Computation of Domain-Averaged Irradiance with a Simple Two-Stream Radiative Transfer Model Including Vertical Cloud Property Correlations  

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

Computation of Domain-Averaged Irradiance Computation of Domain-Averaged Irradiance with a Simple Two-Stream Radiative Transfer Model Including Vertical Cloud Property Correlations S. Kato Center for Atmospheric Sciences Hampton University Hampton, Virginia Introduction Recent development of remote sensing instruments by Atmospheric Radiation Measurement (ARM?) Program provides information of spatial and temporal variability of cloud structures. However it is not clear what cloud properties are required to express complicated cloud fields in a realistic way and how to use them in a relatively simple one-dimensional (1D) radiative transfer model to compute the domain averaged irradiance. To address this issue, a simple shortwave radiative transfer model that can treat the vertical cloud optical property correlation is developed. The model is based on the gamma-weighted

479

Chapter 8, Whole-Building Retrofit with Billing Analysis Evaluation...  

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

on all of the post-period dummy variable components, annual normal or TMY heating, andor cooling degree days for participants with measure k and the mean household characteristics...

480

Power Technologies Energy Data Book: Fourth Edition, Chapter...  

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

Table 12.10 - Heating Degree-Days by Month 1980 1990 2000 2001 2002 2003 2004 Normal 1 January 887 728 886 935 778 944 957 917 February 831 655 643 725 670 801 769 732 March 680...

Note: This page contains sample records for the topic "degree-day normals simple" 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

DOE/EIA-0130(96/08) Distribution Category/UC-950 Natural Gas...  

Gasoline and Diesel Fuel Update (EIA)

temperatures have resulted in lower consumption of natural gas by electric utilities. Cooling degree days have been 3 to 15 percent cooler than normal in many eastern cities of...

482

Natural Gas Weekly Update, Printer-Friendly Version  

Annual Energy Outlook 2012 (EIA)

were 2 percent less than normal for the week, while also having 20 percent less electric home air conditioning customer weighted cooling degree-days. Overall, the total net...

483

Utilization of Normal Mode Initial Conditions for Detecting Errors in the Dynamics Part of Primitive Equation Global Models  

Science Conference Proceedings (OSTI)

When a global atmospheric basic state has constant angular velocity and its temperature varies with attitude only, there exist normal mode solutions to the linearized global primitive equations. The use of these normal modes, which have known ...

Winston C. Chao; Marvin A. Geller

1982-04-01T23:59:59.000Z

484

Nonlinear Normal Mode Initialization of a Limited-Area Model: Inclusion of All Beta Terms in the Linearized Model Equations  

Science Conference Proceedings (OSTI)

A nonlinear normal mode initialization method with all of the beta terms included in the linearized model equations is formulated for a limited-area model. It is the extension of an earlier method examining the sensitivity of nonlinear normal ...

S. J. Bijlsma

1991-04-01T23:59:59.000Z

485

Global stability of the normal state of superconductors in the presence of a strong electric current  

E-Print Network (OSTI)

We consider the time-dependent Ginzburg-Landau model of superconductivity in the presence of an electric current flowing through a two-dimensional wire. We show that when the current is sufficiently strong the solution converges in the long-time limit to the normal state. We provide two types of upper bounds for the critical current where such global stability is achieved: by using the principal eigenvalue of the magnetic Laplacian associated with the normal magnetic field, and through the norm of the resolvent of the linearized steady-state operator. In the latter case we estimate the resolvent norm in large domains by the norms of approximate operators defined on the plane and the half-plane. We also obtain a lower bound, in large domains, for the above critical current by obtaining the current for which the normal state looses its local stability.

Yaniv Almog; Bernard Helffer

2013-10-06T23:59:59.000Z

486

Solar: annual and seasonal average direct normal (DNI) GIS data (contours)  

Open Energy Info (EERE)

direct normal (DNI) GIS data (contours) direct normal (DNI) GIS data (contours) for Brazil from INPE and LABSOLAR Dataset Summary Description (Abstract): Annual and seasonal mean of Direct Normal Solar Radiation in kWh/m2/day based on data from 1995 to 2002 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The cross-calibration process worked with data from 3 ground stations: Caicó (located in the Northeast of Brazil), Florianópolis (located in the South) and Balbina (located in Amazonia). These data have been used for validation and comparison of radiation transfer models operated in SWERA to estimate the incidence of solar radiation on the surface of the country from satellite images obtained from 1995 to 2002

487

Comparison of Model Estimated and Measured Direct-Normal Solar Irradiance  

E-Print Network (OSTI)

Direct-normal solar irradiance (DNSI), the total energy in the solar spectrum incident in unit time on a unit area at the earth's surface perpendicular to the direction to the Sun, depends only on atmospheric extinction of solar energy without regard to the details of the extinction - whether absorption or scattering. Here we report a set of closure experiments performed in north-central Oklahoma in April 1996, under cloud-free conditions, wherein measured atmospheric composition and aerosol optical thickness are input to a radiative transfer model, MODTRAN-3, to estimate DNSI, which is then compared with measured values obtained with normal incidence pyrheliometers and absolute cavity radiometers. Uncertainty in aerosol optical thickness (AOT) dominates the uncertainty in DNSI calculation. AOT measured by an independently calibrated sunphotometer and a rotating Direct-Normal Solar Irradiance - A Closure Experiment, Halthore et al. 2 shadow-band radiometer agree to within the uncerta...

Rangasayi Halthore; Schwartz; S. E.; Michalsky; J. J.; Anderson; G. P.; Gail P. Anderson; Ferrare R. A.; ten Brink H. M; Holben B. N.; Harry M. Ten Brink

1997-01-01T23:59:59.000Z

488

Comparing of Normal Stress Distribution in Static and Dynamic Soil-Structure Interaction Analyses  

Science Conference Proceedings (OSTI)

It is important to consider the vertical component of earthquake loading and inertia force in soil-structure interaction analyses. In most circumstances, design engineers are primarily concerned about the analysis of behavior of foundations subjected to earthquake-induced forces transmitted from the bedrock. In this research, a single rigid foundation with designated geometrical parameters located on sandy-clay soil has been modeled in FLAC software with Finite Different Method and subjected to three different vertical components of earthquake records. In these cases, it is important to evaluate effect of footing on underlying soil and to consider normal stress in soil with and without footing. The distribution of normal stress under the footing in static and dynamic states has been studied and compared. This Comparison indicated that, increasing in normal stress under the footing caused by vertical component of ground excitations, has decreased dynamic vertical settlement in comparison with static state.

Kholdebarin, Alireza; Massumi, Ali [Graduate School of Engineering, Tarbiat Moallem University of Tehran (Kharazmi), Tehran (Iran, Islamic Republic of); Davoodi, Mohammad [Dept. of Geotechnical Earthquake Engineering, International Institute of Earthquake Engineering and Seismology, IIEES, Tehran (Iran, Islamic Republic of); Tabatabaiefar, Hamid Reza

2008-07-08T23:59:59.000Z

489

In lesion diagnostics, it is sometimes hard to choose which data normalization is the best among the other ones.  

E-Print Network (OSTI)

Abstract In lesion diagnostics, it is sometimes hard to choose which data normalization is the best part of the useful information can be lost. Different normalization techniques retrieve different information about the data classes. Sometimes it is quite hard to single out a normalization technique

Duin, Robert P.W.

490

Pelvic Normal Tissue Contouring Guidelines for Radiation Therapy: A Radiation Therapy Oncology Group Consensus Panel Atlas  

Science Conference Proceedings (OSTI)

Purpose: To define a male and female pelvic normal tissue contouring atlas for Radiation Therapy Oncology Group (RTOG) trials. Methods and Materials: One male pelvis computed tomography (CT) data set and one female pelvis CT data set were shared via the Image-Guided Therapy QA Center. A total of 16 radiation oncologists participated. The following organs at risk were contoured in both CT sets: anus, anorectum, rectum (gastrointestinal and genitourinary definitions), bowel NOS (not otherwise specified), small bowel, large bowel, and proximal femurs. The following were contoured in the male set only: bladder, prostate, seminal vesicles, and penile bulb. The following were contoured in the female set only: uterus, cervix, and ovaries. A computer program used the binomial distribution to generate 95% group consensus contours. These contours and definitions were then reviewed by the group and modified. Results: The panel achieved consensus definitions for pelvic normal tissue contouring in RTOG trials with these standardized names: Rectum, AnoRectum, SmallBowel, Colon, BowelBag, Bladder, UteroCervix, Adnexa{sub R}, Adnexa{sub L}, Prostate, SeminalVesc, PenileBulb, Femur{sub R}, and Femur{sub L}. Two additional normal structures whose purpose is to serve as targets in anal and rectal cancer were defined: AnoRectumSig and Mesorectum. Detailed target volume contouring guidelines and images are discussed. Conclusions: Consensus guidelines for pelvic normal tissue contouring were reached and are available as a CT image atlas on the RTOG Web site. This will allow uniformity in defining normal tissues for clinical trials delivering pelvic radiation and will facilitate future normal tissue complication research.

Gay, Hiram A., E-mail: hgay@radonc.wustl.edu [Washington University School of Medicine, St Louis, MO (United States); Barthold, H. Joseph [Commonwealth Hematology and Oncology, Weymouth, MA (United States); Beth Israel Deaconess Medical Center, Boston, MA (Israel); O'Meara, Elizabeth [Radiation Therapy Oncology Group, Philadelphia, PA (United States); Bosch, Walter R. [Washington University School of Medicine, St Louis, MO (United States); El Naqa, Issam [Department of Radiation Oncology, McGill University Health Center, Montreal, Quebec (Canada); Al-Lozi, Rawan [Washington University School of Medicine, St Louis, MO (United States); Rosenthal, Seth A. [Radiation Oncology Centers, Radiological Associates of Sacramento, Sacramento, CA (United States); Lawton, Colleen [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States); Lee, W. Robert [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Sandler, Howard [Cedars-Sinai Medical Center, Los Angeles, CA (United States); Zietman, Anthony [Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA (United States); Myerson, Robert [Washington University School of Medicine, St Louis, MO (United States); Dawson, Laura A. [Department of Radiation Oncology, Princess Margaret Hospital, University of Toronto, Toronto, Ontario (Canada); Willett, Christopher [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Kachnic, Lisa A. [Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA (United States); Jhingran, Anuja [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX (United States); Portelance, Lorraine [University of Miami, Miami, FL (United States); Ryu, Janice [Radiation Oncology Centers, Radiological Associates of Sacramento, Sacramento, CA (United States); and others

2012-07-01T23:59:59.000Z

491

Does Quantum Mechanics Make Sense?Does Quantum Mechanics Make Sense? Some relatively simple concepts show why the answer is yes.Some relatively simple concepts show why the answer is yes.  

E-Print Network (OSTI)

Does Quantum Mechanics Make Sense?Does Quantum Mechanics Make Sense? Some relatively simple Classical Mechanics Quantum Mechanics Relative Absolute What does relative vs. absolute size mean?What does relative vs. absolute size mean? Why does it matter?Why does it matter? #12;Classical Mechanics

Fayer, Michael D.

492

A study of polymer knots using a simple knot invariant written consisting of multiple contour integrals  

E-Print Network (OSTI)

In this work the thermodynamic properties of short polymer knots (up to 120 segments) defined on a simple cubic lattice are studied with the help of the Wang-Landau Monte Carlo algorithm. The sampling process is performed using pivot transformations starting from a given seed conformation. Both cases of short-range attractive and repulsive interactions acting on the monomers are considered. The properties of the specific energy, heat capacity and gyration radius of several knots are discussed. It is found that the heat capacity exhibits a sharp peak. If the interactions are attractive, similar peaks have been observed also in single open chains and have been related to the transition from a frozen crystallite state to an expanded coil state. Some other peculiarities of the behavior of the analyzed observables are presented, like for instance the increasing or decreasing of the knot specific energy at high temperatures with increasing polymer lengths depending if the interactions are attractive or repulsive. Besides the investigation of the thermodynamics of polymer knots, the second goal of this paper is to introduce a method for distinguishing the topology of a knot based on a topological invariant which is in the form of multiple contour integrals and explicitly depends on the physical trajectory of the knot. The chosen invariant is related to the second coefficient of the Conway polynomial. It has been first isolated from the amplitudes of a Chern-Simons field theory with gauge group SU(N). It is shown that this invariant is very reliable in distinguishing the topology of polymer knots. One of the advantages of the proposed approach is that it allows to reduce the number of samples needed by the Wang-Landau algorithm. Some solutions to speed up the calculations exploiting Monte Carlo integration techniques are developed.

Yani Zhao; Franco Ferrari

2013-06-24T23:59:59.000Z

493

Exploration of Simple Analytical Approaches for Rapid Detection of Pathogenic Bacteria  

Science Conference Proceedings (OSTI)

Many of the current methods for pathogenic bacterial detection require long sample-preparation and analysis time, as well as complex instrumentation. This dissertation explores simple analytical approaches (e.g., flow cytometry and diffuse reflectance spectroscopy) that may be applied towards ideal requirements of a microbial detection system, through method and instrumentation development, and by the creation and characterization of immunosensing platforms. This dissertation is organized into six sections. In the general Introduction section a literature review on several of the key aspects of this work is presented. First, different approaches for detection of pathogenic bacteria will be reviewed, with a comparison of the relative strengths and weaknesses of each approach, A general overview regarding diffuse reflectance spectroscopy is then presented. Next, the structure and function of self-assembled monolayers (SAMs) formed from organosulfur molecules at gold and micrometer and sub-micrometer patterning of biomolecules using SAMs will be discussed. This section is followed by four research chapters, presented as separate manuscripts. Chapter 1 describes the efforts and challenges towards the creation of imunosensing platforms that exploit the flexibility and structural stability of SAMs of thiols at gold. 1H, 1H, 2H, 2H-perfluorodecyl-1-thiol SAM (PFDT) and dithio-bis(succinimidyl propionate)-(DSP)-derived SAMs were used to construct the platform. Chapter 2 describes the characterization of the PFDT- and DSP-derived SAMs, and the architectures formed when it is coupled to antibodies as well as target bacteria. These studies used infrared reflection spectroscopy (IRS), X-ray photoelectron spectroscopy (XPS), and electrochemical quartz crystal microbalance (EQCM), Chapter 3 presents a new sensitive, and portable diffuse reflection based technique for the rapid identification and quantification of pathogenic bacteria. Chapter 4 reports research efforts in the construction and evaluation of a prototype flow cytometry based cell detector and enumerator. This final research chapter is followed by a general summation and future prospectus section that concludes this dissertation.

Salma Rahman

2005-12-17T23:59:59.000Z

494

Some Simple Arguments about Cost Externalization and its Relevance to the Price of Fusion Energy  

Science Conference Proceedings (OSTI)

The primary goal of fusion energy research is to develop a source of energy that is less harmful to the environment than are the present sources. A concern often expressed by critics of fusion research is that fusion energy will never be economically competitive with fossil fuels, which in 1997 provided 75% of the world's energy. And in fact, studies of projected fusion electricity generation generally project fusion costs to be higher than those of conventional methods. Yet it is widely agreed that the environmental costs of fossil fuel use are high. Because these costs aren't included in the market price, and furthermore because many governments subsidize fossil fuel production, fossil fuels seem less expensive than they really are. Here we review some simple arguments about cost externalization which provide a useful background for discussion of energy prices. The collectively self-destructive behavior that is the root of many environmental problems, including fossil fuel use, was termed ''the tragedy of the commons'' by the biologist G. Hardin. Hardin's metaphor is that of a grazing commons that is open to all. Each herdsman, in deciding whether to add a cow to his herd, compares the benefit of doing so, which accrues to him alone, to the cost, which is shared by all the herdsmen using the commons, and therefore adds his cow. In this way individually rational behavior leads to the collective destruction of the shared resource. As Hardin pointed out, pollution is one kind of tragedy of the commons. CO{sub 2} emissions and global warming are in this sense classic tragedies.

Budny, R.; Winfree, R.

1999-09-27T23:59:59.000Z

495

Solubilities of Solutes in Ionic Liquids from a SimplePerturbed-Hard-Sphere Theory  

SciTech Connect

In recent years, several publications have provided solubilities of ordinary gases and liquids in ionic liquids. This work reports an initial attempt to correlate the experimental data using a perturbed-hard-sphere theory; the perturbation is based on well-known molecular physics when the solution is considered as a dielectric continuum. For this correlation, the most important input parameters are hard-sphere diameters of the solute and of the cation and anion that constitute the ionic liquid. In addition, the correlation uses the solvent density and the solute's polarizability and dipole and quadrupole moments, if any. Dispersion-energy parameters are obtained from global correlation of solubility data. Results are given for twenty solutes in several ionic liquids at normal temperatures; in addition, some results are given for gases in two molten salts at very high temperatures. Because the theory used here is much simplified, and because experimental uncertainties (especially for gaseous solutes) are often large, the accuracy of the correlation presented here is not high; in general, predicted solubilities (Henry's constants) agree with experiment to within roughly {+-} 70%. As more reliable experimental data become available, modifications in the characterizing parameters are likely to improve accuracy. Nevertheless, even in its present form, the correlation may be useful for solvent screening in engineering design.

Qin, Yuan; Prausnitz, John M.

2005-09-20T23:59:59.000Z

496

Origin of the Annual to Decadal Peaks of Variability in the Response of Simple Ocean Models to Stochastic Forcing  

Science Conference Proceedings (OSTI)

The response of the ocean to stochastic forcings is studied in a closed basin, using a simple one-dimensional analytical model. The focus is on the mechanisms that determine the time scales of the response and their possible links with free basin ...

Jrme Sirven; Christophe Herbaut; Julie Deshayes; Claude Frankignoul

2007-08-01T23:59:59.000Z

497

Evaluation of the Simple Urban Energy Balance Model Using Selected Data from 1-yr Flux Observations at Two Cities  

Science Conference Proceedings (OSTI)

The authors objective was to apply the Simple Urban Energy Balance Model for Mesoscale Simulation (SUMM) to cities. Data were selected from 1-yr flux observations conducted at three sites in two cities: one site in Kugahara, Japan (Ku), and two ...

Toru Kawai; Mohammad Kholid Ridwan; Manabu Kanda

2009-04-01T23:59:59.000Z

498

Linear versus Nonlinear Filtering with Scale-Selective Corrections for Balanced Dynamics in a Simple Atmospheric Model  

Science Conference Proceedings (OSTI)

This paper investigates the role of the linear analysis step of the ensemble Kalman filters (EnKF) in disrupting the balanced dynamics in a simple atmospheric model and compares it to a fully nonlinear particle-based filter (PF). The filters have ...

Aneesh C. Subramanian; Ibrahim Hoteit; Bruce Cornuelle; Arthur J. Miller; Hajoon Song

2012-11-01T23:59:59.000Z

499

IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 5, NO. 6, DECEMBER 1997 741 RCBR: A Simple and Efficient Service  

E-Print Network (OSTI)

IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 5, NO. 6, DECEMBER 1997 741 RCBR: A Simple and Efficient; revised August 18, 1997; approved by IEEE/ACM TRANSACTIONS ON NETWORKING Editor S. Floyd. This work was supported in part by France Telecom/CNET, by the Air Force Office of Scientific Research (AFOSR) under Grant

Tse, David

500

NEUStore (version 1.4): A Simple Java Package for the Construction of Disk-based, Paginated, and Buffered Indices  

E-Print Network (OSTI)

NEUStore (version 1.4): A Simple Java Package for the Construction of Disk-based, Paginated structures. This could happen if you want the students in your database class to implement some basic index structures such as the B+-tree and the linear hashing. Alternatively, you may want your Ph.D. students

Zhang, Donghui